BELT BUCKLE

The present invention provides a belt buckle, which solves the problem that the existing self-locking belt buckle is easy to be inconvenient to unlock when it is locked over tightly. The belt buckle comprises a main-body; a plate-control body; and a pawl for restricting the position of the belt-body; wherein the rear end of the main-body is set with a belt-body clamping section, the front end of the main-body is rotatedly connected with a rotation-shaft, a vice placing hole is set in the front end of the plate-control body, a groove is set on the outer surface of the front end of the main-body, and a position-restoring spring is set between the rear end of the pawl and the rear end of the bottom of the groove. The present invention can adjust the tightness of the belt by just pressing, the adjustment is convenient and the flexibility is higher.

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Description
(A) TECHNICAL FIELD OF THE INVENTION

The present invention relates to a belt buckle.

(B) DESCRIPTION OF THE PRIOR ART

At present, the working principle of the self-locking belt buckle on the market is: when adjusting the tightness of the belt, pressing and holding the belt buckle with the thumb and rotating the handle with the index finger to release the rotating piece (pawl) from the ratchet teeth, then the belt can be freely relaxed or tightened; and when locking the belt tightly, the index finger is released from the handle and the rotary plate is reset under the action of the magnet while the rotary plate abuts against the ratchet teeth.

The existing automatic locking belt buckles have the following disadvantages:

Firstly, the adjusting of the tightness is troublesome and the rotating piece will be buckled tightly with the ratchet teeth when the belt is very tight, therefore the handle is difficult to rotate and requires a lot of effort to unlock it.

Secondly, the structure of the existing belt buckle is complex and the weight is heavier; the more parts, the heavier the weight and easier to damage.

SUMMARY OF THE INVENTION

The present invention provides a belt buckle, which aims to solve the problem that the existing self-locking belt buckle is easy to need more strength to unlock when the belt buckle is locked tightly.

In order to solve the above technical problem, the present invention is implemented by the following technical solutions:

A belt buckle comprises a main-body; a plate-control body; and a pawl for restricting the position of the belt-body; wherein the rear end of the main-body is set with a belt-body clamping section, and the front end of the main-body is rotatedly connected with a rotation-shaft which is set in the left-right direction; wherein a vice placing hole opened in the front-rear direction is set in the front end of the plate-control body, and the plate-control body is fixedly connected to the rotation-shaft; wherein a groove which the pawl is located within is set on the outer surface of the front end of the main-body, and the front end of the pawl is fixed on the rotating shaft; wherein a position-restoring spring is set between the rear end of the pawl and the rear end of the bottom of the groove; wherein a main limiting frame is set on the outer surface of the main-body, and a main placing hole of the belt-body is opened in the front-rear direction and is surrounded and formed between the main limiting frame and the outer surface of the main body.

Furthermore, the clamping section is formed by an engaging slot that is disposed on the rear end surface of the main-body and matched with the belt-body and a fixing screw for fixing the belt body within the engaging slot.

Furthermore, the main-body is set with a first through hole penetrating through the groove and the front end of the pawl is set with a second through hole, and both the left and right sides of the plate-control body are set with a connection hole; wherein the rotation-shaft is penetrated through the first through hole, the second through hole; wherein the second through hole and the connection hole are both fixedly connected with the rotation-shaft

Furthermore, the vice placing hole of the belt-body is surrounded and formed by the front edge of the board control body and a vice limiting frame set on the inner surface of the plate-control body.

Furthermore, the plate-control body is a U-shaped frame with an open back end.

Furthermore, the pawl comprises a fixing portion and a bending portion; wherein the fixing portion is fixedly connected with the rotation-shaft, and the bending portion is disposed at the rear end of the fixing portion and is bent outward.

The pawl structure is used in conjunction with a belt-body having ratcheted teeth.

Furthermore, the pawl is a triangular or square sheet structure.

Compared with the prior art, the advantages of the present invention are:

    • 1. In the present invention, the pawl can be driven out of the belt-body by gently pressing the connection place between the main-body and the plate-control body, so that the tightness of the belt can be adjusted. Even if the belt is very tight, it can be easily opened.
    • 2. The present invention omits the panel, magnet and the like on the belt buckle; the structure is simplified, so that the whole becomes lighter convenient.
    • 3. Under the action of the position-restoring spring, the plate-control body and the pawl are restored position, and the pawl abuts on the belt-body, thereby limiting the position of the belt-body and realizing the function of automatic locking tightly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural schematic diagram of the belt buckle of the first embodiment according to the present invention.

FIG. 2 is a structural schematic diagram of the main-body of the first embodiment according to the present invention.

FIG. 3 is a structural schematic diagram of the plate-control body of the first embodiment according to the present invention.

FIG. 4 is a structural schematic diagram of the pawl of the first embodiment according to the present invention.

FIG. 5 is a fit relationship schematic diagram of the first through hole and the rotation-shaft of the first embodiment according to the present invention.

FIG. 6 is a cross-section schematic diagram of the rotation-shaft of the first embodiment according to the present invention.

FIG. 7 is a structural schematic diagram when the belt is inserted and tightened in the first embodiment according to the present invention.

FIG. 8 is a structural schematic diagram when the belt is on wear in the first embodiment according to the present invention.

FIG. 9 is a structural schematic diagram when releasing the belt by pressing the belt buckle in the first embodiment according to the present invention.

FIG. 10 is a structural schematic diagram when the belt-body is withdraw from the belt buckle in the first embodiment according to the present invention.

FIG. 11 is a belt structural diagram which adopts the belt buckle of the first embodiment according to the present invention.

FIG. 12 is a structural schematic diagram of the belt buckle of the second embodiment according to the present invention.

FIG. 13 is a structural schematic diagram of the pawl of the second embodiment according to the present invention.

FIG. 14 is a structural schematic diagram of the belt buckle corresponding to the belt of the second embodiment according to the present invention.

FIG. 15 is a structural explosion schematic diagram of the belt buckle of the third embodiment according to the present invention.

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following detailed description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

The foregoing and other aspects, features, and utilities of the present invention will be best understood from the following detailed description of the preferred embodiments when read in conjunction with the accompanying drawings.

Embodiment 1

Referring to FIG. 1 to FIG. 4, a belt buckle comprises a main-body 10, a plate-control body 20, and a pawl 13 for restricting the position of the belt-body 30.

The rear end of the main-body 10 is set with a belt-body clamping section, and the front end of the main-body 10 is rotatedly connected with a rotation-shaft 15 which is set in the left-right direction. The plate-control body 20 is fixedly connected to the rotation-shaft 15. The outer surface of the front end of the main-body 10 is set with a groove 11 which the pawl 13 is located within, and the front end of the pawl 13 is fixed on the rotating shaft 15. A position-restoring spring 12 is set between the rear end of the pawl 13 and the rear end of the bottom of the groove 11, which one position-restoring spring 12 is preferably used in this embodiment, but other number of the position-restoring spring 12 may also be selected according to the specific situation.

Referring to FIG. 1 and FIG. 2, a main limiting frame 16 is set on the outer surface of the main-body 10, and a main placing hole 25 of the belt-body 30 is opened in the front-rear direction and is surrounded and formed between the main limiting frame 16 and the outer surface of the main body 10.

Referring to FIG. 3, a vice placing hole 22 opened in the front-rear direction is set in the front end of the plate-control body 20, which the plate-control body 20 is a U-shaped frame with an open back end.

The vice placing hole 22 of the belt-body 30 is surrounded and formed by the front edge of the board control body 20 and a vice limiting frame 24 set on the inner surface of the plate-control body 20.

Referring to FIG. 4, the pawl 13 comprises a fixing portion 131 and a bending portion 132, which the fixing portion 131 is fixedly connected with the rotation-shaft 15. The bending portion 132 is disposed at the rear end of the fixing portion 131 and is bent outward.

In order to weaken the damage of the pawl 13 to the belt body 30, an adhesive layer is set on the outer side of the pawl 13 in this embodiment.

In this embodiment, the rotation-shaft 15 may be a single shaft or two shafts combined to form.

The main-body 10 is set with a first through hole 26 penetrating through the groove 11, and the front end of the pawl 13 is set with a second through hole 133. Both the left and right sides of the plate-control body 20 are set with a connection hole 21, which the rotation-shaft 15 is penetrated through the first through hole 26, the second through hole 133, and the connection hole 21. The rotation-shaft 15 is pivotally connected within the first through hole 26 which is a round hole; wherein the second through hole 133 and the connection hole 21 are both fixedly connected with the rotation-shaft 15.

Referring to FIG. 2 and FIG. 5, the cross-section of the rotation-shaft 15 is an arcuate shape, and the radius of the first through hole 26 is the same as the radius of the rotation-shaft 15. When the rotation-shaft 15 rotates, the main-body 10 will not follow to rotate.

Referring to FIG. 4 and FIG. 6, the front end of the pawl 13 is set with a second through hole 133 whose cross section is the same as which of the rotation-shaft 15.

Referring to FIG. 3 and FIG. 6, the rear end of the plate-control body 200 is set with a connecting hole 21 whose cross section is the same as which of the rotation-shaft 15.

When the plate-control body 20 rotates, the pawl 13 and the rotation-shaft 15 will rotate together. The main function of the above structure is that the shaft 15 and the pawl 13 will rotate together with the plate-control body 20 when the rotation-shaft 15 and the plate-control body 20 are relatively rotated.

The cross-section of the rotation-shaft 15 in this embodiment is not limited to the arcuate shape, which may also be a non-circular shape such as a regular polygon as long as the rotation-shaft 15 and the pawl 13 can be rotated together with the plate-control body 20 and the main-body 10 does not follow the rotation-shaft 15 to rotate.

In this embodiment, the clamping section is formed by an engaging slot that is disposed on the rear end surface of the main-body 10 and matched with the belt-body 30 and a fixing screw for fixing the belt body 30 within the engaging slot. Alternatively, the clamping section can be formed by other existing structure for clamping belt such as an engaging component.

The following will further describe the present embodiment in combination with the working principle of this embodiment:

Referring to FIG. 7, when the belt is tightened, the free end of the belt belt-body 30 (the other end of the belt-body 30 is a fixed end fixed in the clamping section of the main-body 10) is pass through the vice placing hole 22 and the main limiting hole 25 of the belt-body 30 in sequence. When the belt-body 30 passes through the main limiting hole 25 of the belt-body 30, the belt body 30 presses the pawl 13 until the belt-body 30 is adjusted to an appropriate position; then the tightening is stopped, and the pawl 13 is fastened to the ratchet teeth 31.

After the tightening is completed, a normal wearing state as shown in FIG. 8 is formed. At this time, the belt can only be tightened in one direction and cannot be loosened in the reverse direction under the action of the ratchet teeth 31 and the pawl 13 of the belt-body 30.

Referring to FIG. 9, when the belt needs to be loosen, using the hand to gently press the connection place between the main-body 10 and the plate-control body 20 inwardly; then the plate-control body 20 will sequentially drive the rotation-shaft 15 and the pawl 13, and the bending portion 132 of the pawl 13 will move toward the bottom of the groove 11. At the same time, the position-restoring spring 12 is compressed by the pawl 13, and the bending portion 132 of the pawl 13 is disengaged from the ratchet teeth 31 of the belt-body 30, so that the belt-body 30 can be smoothly withdrawn from the belt buckle as shown in FIG. 10.

FIG. 11 shows a belt comprising the belt buckle of the first embodiment as described above. The belt comprises a belt-body 30 on which the ratchet teeth 31 matched to the pawl 13 is set.

Claims

1. A belt buckle comprises a main-body; a plate-control body; and a pawl for restricting the position of the belt-body, which is characterized in that:

the rear end of the main-body is set with a belt-body clamping section, and the front end of the main-body is rotatedly connected with a rotation-shaft which is set in the left-right direction;
a vice placing hole opened in the front-rear direction is set in the front end of the plate-control body, and the plate-control body is fixedly connected to the rotation-shaft;
a groove which the pawl is located within is set on the outer surface of the front end of the main-body, and the front end of the pawl is fixed on the rotating shaft;
a position-restoring spring is set between the rear end of the pawl and the rear end of the bottom of the groove;
a main limiting frame is set on the outer surface of the main-body, and a main placing hole of the belt-body is opened in the front-rear direction and is surrounded and formed between the main limiting frame and the outer surface of the main body.

2. The belt buckle according to claim 1, which is characterized in that:

the clamping section is formed by an engaging slot that is disposed on the rear end surface of the main-body and matched with the belt-body and a fixing screw for fixing the belt body within the engaging slot.

3. The belt buckle according to claim 1, which is characterized in that:

the main-body is set with a first through hole penetrating through the groove and the front end of the pawl is set with a second through hole, and both the left and right sides of the plate-control body are set with a connection hole; wherein the rotation-shaft is penetrated through the first through hole, the second through hole; wherein the second through hole and the connection hole are both fixedly connected with the rotation-shaft.

4. The belt buckle according to claim 1, which is characterized in that:

the vice placing hole of the belt-body is surrounded and formed by the front edge of the board control body and a vice limiting frame set on the inner surface of the plate-control body.

5. The belt buckle according to claim 1, which is characterized in that:

the plate-control body is a U-shaped frame with an open back end.

6. The belt buckle according to claim 1, which is characterized in that:

the pawl comprises a fixing portion and a bending portion; wherein the fixing portion is fixedly connected with the rotation-shaft, and the bending portion is disposed at the rear end of the fixing portion and is bent outward.
Patent History
Publication number: 20190082796
Type: Application
Filed: Mar 27, 2018
Publication Date: Mar 21, 2019
Inventor: Hsi-Hsin Chen (Zhonghe City)
Application Number: 15/937,854
Classifications
International Classification: A44B 11/25 (20060101);