MOP DEHYDRATING DEVICE

Abstract

A mop dehydrating device includes a case having a space and a recess. A driving unit is located in the recess and has a base with two lugs extending therefrom. An operation unit and a transmission member are connected between the two lugs. The operation unit has an operation pedal which protrudes from the opening. A curved or straight rack is connected to the operation unit and has teeth which have a metal layer connected thereto. The transmission member has a transmission gear which is engaged with the teeth of the rack. A spinning unit has a shaft which extends through the inside of the space and driven by the transmission member. A bracket is connected to the shaft and spins by operating the operation pedal.

Description

FIELD OF THE INVENTION

The present invention relates to a dehydrating device, and more particularly, to a mop dehydrating device for easily dehydrate the mop and having strong transmission mechanism.

BACKGROUND OF THE INVENTION

A conventional mop dehydrating device is disclosed in Taiwan Utility Patent No. M338634 and generally includes a case, an installation unit, a spinning unit, a transmission unit and an operation unit, wherein the installation unit is connected to the bottom of the case and the operation unit is pivotably connected to the installation unit. The transmission unit is connected to the installation unit and includes a rack, a rail, a first gear and a second gear. The operation unit drives the rack. The spinning unit has a transmission gear and a bucket. The transmission gear extends through the case and is connected to the bracket in the case. By treading the operation unit, the rack is moved to drive the first gear and the second gear, and the transmission gear to spin the bracket.

However, the gears are made by plastic and easily worn out after a period of time of operation, so that the driving action between the gears may fail or the engagement between the gears is loosened and not reliable. Therefore, the bracket cannot spin as desired and the mop cannot be dehydrated.

The present invention intends to provide a mop dehydrating device which improves the shortcomings of the conventional device.

SUMMARY OF THE INVENTION

The present invention relates to a mop dehydrating device and comprises a case having a space defined therein and communicating with the open top of the case. A recess is defined in the lower portion of the case and an opening is defined in the outside of the case and communicates with the recess. A driving unit is located in the recess and has a base with two lugs extending therefrom. An operation unit and a transmission member are connected between the two lugs. The operation unit has an operation pedal which protrudes from the opening. A rack is connected on a side of the operation unit and has teeth with a metal layer connected thereto. The transmission member has a transmission gear which is engaged with the teeth of the rack. A spinning unit has a shaft which extends through an inside of the space and driven by the transmission member.

The primary object of the present invention is to provide a mop dehydrating device wherein the teeth of the rack have a metal layer so as to prevent being worn out during operation.

The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view to show the mop dehydrating device of the present invention;

FIG. 2 is an exploded view to show the mop dehydrating device of the present invention;

FIG. 3 shows the driving unit of the mop dehydrating device of the present invention;

FIG. 4 is a cross sectional view to show the driving unit and the shaft of the spinning unit of the mop dehydrating device of the present invention;

FIG. 5 is a partial cross sectional view to show that the transmission gear is engaged with the teeth of the rack, wherein a metal layer is mounted to the plastic teeth;

FIG. 6 is a partial cross sectional view to show that the transmission gear is engaged with the metal teeth of the rack of the present invention;

FIG. 7 is a cross sectional view to show that the transmission gear is engaged with the straight rack which has metal layer on the plastic teeth, and

FIG. 8 is a cross sectional view to show that the transmission gear is engaged with the straight rack which has metal teeth.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1 to 6, the mop dehydrating device of the present invention comprises a case 10, driving unit 20 and a spinning unit 30.

The case 10 has a space 11 defined therein which communicates with an open top of the case 10, and a recess 12 is defined in the lower portion of the case 10 and an opening 13 is defined in the outside of the case 10 and communicates with the recess 12.

The driving unit 20 is located in the recess 12 and includes a base 21 and two lugs 22 extend from the base 21. An operation unit 23 and a transmission member 24 are connected between the two lugs 22. The transmission member 24 has a first bevel gear 241. The operation unit 23 includes a pivot 230 which is pivotably connected between the two lugs 22 and a torsion spring 25 is connected between the operation unit 23 and one of the two lugs 22. The operation unit 23 has an operation pedal 231 which protrudes from the opening 13. A rack 232 is connected on a side of the operation unit 23 and has teeth 233 formed thereon. The rack 232 is a curved rack (FIG. 5) or a straight rack (FIG. 7). The teeth 233 are made by plastic and a metal layer 234 is connected to the teeth 233 as shown in FIGS. 5 and 7. The transmission member 24 has a transmission gear 240 which is engaged with the metal layer 234 on the teeth 233 of the rack 232. The teeth 233 can also be made by metal such as shown in FIGS. 6 and 8, then the transmission gear 240 is directly engaged with the teeth 233 of the rack 232.

The spinning unit 30 has a shaft 31 which extends through an inside of the space 11 and has a bracket 32 connected to the top end thereof, the bracket 32 is located in the space 11 of the case 10 and includes multiple holes 320 defined through the wall thereof. A one-way bearing 33 is mounted to the shaft 31 and a second bevel gear 34 is mounted to the one-way bearing 33. The first bevel gear 241 drives the second bevel gear 34.

When in use, the user treads the operation pedal 231 so that the operation unit 23 is pivoted about the pivot 230 and the torsion spring 25 is expanded. The transmission gear 240 is rotated by the rack 232 and the first bevel gear 241 drives the second bevel gear 242 such that the shaft 31 and the bracket 32 spin quickly. The mop (not shown) in the bracket 32 is dehydrated by the eccentric force. When the operation pedal 231 is released, the torsion spring 25 returns the operation pedal 231 of the operation unit 23. Thanks to the one-way bearing 33, the shaft 31 continuously spins and the bracket 32 keeps on spinning by treading the operation pedal 231 repeatedly.

Because the teeth 233 of the rack 232 has the metal layer 234 connected thereon as shown in FIG. 5, or the teeth 233 of the rack 232 are made by metal as shown in FIG. 6, the engagement between the transmission gear 240 and the teeth 233 of the rack 232 does not wear out the teeth 233 and the shortcoming of the conventional mop dehydrating device is improved.

While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.

Claims

1. A mop dehydrating device comprising:

a case having a space defined therein which communicates with an open top of the case, a recess defined in a lower portion of the case and an opening defined in an outside of the case and communicating with the recess;

a driving unit located in the recess and having a base, two lugs extending from the base, an operation unit and a transmission member connected between the two lugs, the operation unit having an operation pedal which protrudes from the opening, a rack connected on a side of the operation unit and having teeth with a metal layer connected thereto, the transmission member having a transmission gear which is engaged with the teeth of the rack, and

a spinning unit having a shaft which extends through an inside of the space and driven by the transmission member.

2. The mop dehydrating device as claimed in claim 1, wherein the operation unit includes a pivot which is pivotably connected between the two lugs and a torsion spring is connected between the operation unit and one of the two lugs.

3. The mop dehydrating device as claimed in claim 1, wherein the shaft of the spinning unit has a bracket connected thereto which is located in the space of the case, the bracket includes multiple holes defined through a wall thereof, a one-way bearing is mounted to the shaft, the transmission member has a first bevel gear and a second bevel gear is mounted to the one-way bearing, the first bevel gear drives the second bevel gear.

4. The mop dehydrating device as claimed in claim 1, wherein the rack is a curved rack or a straight rack.

5. A mop dehydrating device comprising:

a case having a space defined therein which communicates with an open top of the case, a recess defined in a lower portion of the case and an opening defined in an outside of the case and communicating with the recess;

a driving unit located in the recess and having a base, two lugs extending from the base, an operation unit and a transmission member connected between the two lugs, the operation unit having an operation pedal which protrudes from the opening, a rack connected on a side of the operation unit and having teeth with a metal layer connected thereto, the transmission member having a transmission gear which is engaged with the teeth of the rack, the transmission member having a first bevel gear, and

a spinning unit having a shaft which extends through an inside of the space, a bracket connected to the shaft of the spinning unit and located in the space of the case, the bracket including multiple holes defined through a wall thereof, a one-way bearing mounted to the shaft, a second bevel gear mounted to the one-way bearing and driven by the first bevel gear.

6. The mop dehydrating device as claimed in claim 5, wherein the operation unit includes a pivot which is pivotably connected between the two lugs and a torsion spring is connected between the operation unit and one of the two lugs.

7. The mop dehydrating device as claimed in claim 5, wherein the shaft of the spinning unit has a bracket connected thereto which is located in the space of the case, the bracket includes multiple holes defined through a wall thereof, a one-way bearing is mounted to the shaft, the transmission member has a first bevel gear and a second bevel gear is mounted to the one-way bearing, the first bevel gear drives the second bevel gear.

8. The mop dehydrating device as claimed in claim 5, wherein the rack is a curved rack or a straight rack.