Abstract: The present invention discloses a dual-shutter telescopic door railing and, in the technical solution of the invention, two reels are pivotally provided between the upper fixed seat and the lower fixed seat to connect with the rolling shutter component, a torsion spring that can automatically retract the rolling shutter component is disposed inside the reel and, after assembly, the invention forms a dual-shutter structure having two rolling shutter components, improving the range of application and the applicability of telescopic door railings.

Abstract: The present invention discloses a rolling shutter door railing, including a connecting mechanism for connecting with the free end of rolling shutter, the connecting mechanism includes a column and a seat on the column, the column can be vertically fixed to the installation position through the seat, and the length of the column fits the overall height of the rolling shutter door railing; the simple structure in the present invention can be directly installed, without any positioning installation based on the position of the rolling shutter. Compared to traditional structures, the present invention has optimized the installation process and effectively improved the installation convenience of rolling shutter door railing.

Abstract: The present invention discloses a rolling shutter door fence, including a connecting mechanism for connecting with the free end of the roller shutter, the connecting mechanism includes a column and a base provided for the column, the column can be vertically fixed to the installation position through the base, the length of the column, which of course can also be longer, fits with the overall height of the rolling shutter door fence, the present invention having a simple structure allows for direct installation without positioning according to the position of the roller shutter and, compared with traditional methods, optimizes the overall installation process of the roller shutter door fence and effectively improves the installation convenience of the roller shutter door fence.

Abstract: The present utility model discloses a protective curtain and a retractable protective door railing with the protective curtain. The curtain body is provided with at least a reinforcing strip to improve the anti warping property of the curtain. When the protective curtain is in an unfolded state for use, the reinforcing strip that plays a role of structural reinforcement can significantly reduce or eliminate the degree of warping of protective curtain in use, as well as the possibility of a large passage between the warped middle part of curtain bottom and the ground, decrease or avoid the likelihood of children or pets going outside through the passage, thereby improving the protective property and overall aesthetic of the protective door railing.

Abstract: Provided is a retractable protective door bar capable of adapting to a long curtain. The retractable protective door bar includes an upper fixation seat, a lower fixation seat, a rolling curtain shaft and a rolling curtain subassembly. A torsional spring is mounted inside the rolling curtain shaft, a rotating subassembly and a stopping subassembly are arranged inside the lower fixation seat, the rotating subassembly has a ratchet wheel, and the stopping subassembly has a locking tooth. The rotating subassembly may rotate toward one direction only through clamping of the locking tooth and the ratchet wheel. An upper end of the torsional spring is connected and fixed to the rolling curtain shaft, and a lower end is connected and fixed to the rotating subassembly. in this way the torsion of the torsional spring may be adjusted by twisting the rotating part outside the lower fixation seat.

Abstract: The present disclosure discloses a locking seat, which comprises a shell and a pivot seat pivotally installed on the shell, wherein the pivot seat is provided with a positioning hole, and a unidirectional positioning device is provided between the shell and the pivot seat. The present disclosure further discloses a simple telescopic door fence, which comprises two installing seats oppositely provided and a folding rod pivotally installed between the two installing seats, wherein at least one of the installing seats is provided with the locking seat, the folding rod is rotatable in a predetermined direction, at least two folding rods are provided, and a cloth is provided between the two folding rods. The unidirectional rotation of the folding rod is realized by the unidirectional positioning device, so that the cloth can be adjusted and rolled up.

Abstract: A retractable door sill, including: a mounting base, the mounting base including an upper fixing base and a lower fixing base; a rotating drum, the rotating drum being arranged between the upper fixing base and the lower fixing base, a partition cloth, a torsion spring being configured to make the rotating drum rotate in one direction around its axis, the rotating drum wind up the partition cloth; and an adjusting device, the adjusting device comprising an adjusting rod and an adjusting mechanism, one end of the torsion spring being connected to the rotating drum, the other end of the torsion spring being connected to the adjusting rod of the adjusting device, the adjusting mechanism being configured to enable the adjusting rod to rotate unidirectionally around its own axis, and the adjusting rod being configured to change a torsional deformation of the torsion spring through its own rotation.

Abstract: Provided is a locking head apparatus of a dual automatic locking protective door bar. The locking head apparatus includes a housing, a first toggling button, a second toggling button, a sliding seat, a fixation seat, a linkage locking mechanism and a rotating mechanism. A hydraulic rod is mounted inside the fixation seat, and the hydraulic rod is connected to the sliding seat. The second toggling button is exposed on the housing and connected with a toggling button seat. The toggling button seat is mounted inside the housing through a first spring, thereby forming an automatic resetting mechanism. With the adoption of the locking head apparatus, the dual automatic locking may be realized, the dual protection is achieved, and a child is prevented from opening the door bar after learning the unlocking skill.