CN219412226U

CN219412226U - Folding door lock

Info

Publication number: CN219412226U
Application number: CN202320717624.XU
Authority: CN
Inventors: 朱兴磊; 杨文星; 朱子健
Original assignee: Cooper New Energy Co ltd
Current assignee: Cooper New Energy Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-25
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to a folding door lock. The folding door comprises a lock tongue sliding sleeve fixedly connected with the folding door, wherein a lock tongue is arranged in the lock tongue sliding sleeve in a sliding way; the door lock further comprises a door lock connecting plate connected with one end of the lock tongue and a locking groove matched with the lock tongue; the folding door also comprises the other end which is connected between the door lock connecting plate and the folding door and can drive the lock tongue a pulling assembly sliding between a position inserted in the locking groove and a position withdrawn from the locking groove; the door lock further comprises a reset elastic piece which is connected between the door lock connecting plate and the folding door and drives the lock tongue to reset. According to the utility model, a folding door can be locked without manual rotation of a handle by a worker, the operation process is simple and convenient, the condition that the folding door is forgotten to be locked after being closed is avoided, the safety of a car is improved, meanwhile, the spring bolt and the locking groove are prevented from being bumped to cause bruise or scratch, and the service life of the door lock is prolonged.

Description

Folding door lock

Technical Field

The utility model belongs to the technical field of wind power facilities, and particularly relates to a folding door lock.

Background

With the progress of technology and the gradual improvement of clean energy demands of people, wind power generation technology is greatly developed. Wind power generation means that wind power generation facilities are adopted to convert wind energy into electric energy, and the existing wind power generation facilities generally comprise a wind turbine tower barrel, wind blades and a generator set, and a lifter is generally installed in the wind turbine tower barrel. The tower drum lifter is a special lifter which is arranged in the tower drum of the fan, sends workers or tools and materials to an upper platform or a cabin, and can be stopped at any position in the tower drum at any time to carry out maintenance work.

To improve the safety of the elevator, a folding door needs to be installed on the elevator car, and the folding door is a safety door for the industrial elevator to enter and exit the car and is an important safety component of the industrial elevator. The folding door is also called as folding sliding door, is a type of sliding door, is generally a multi-door leaf folding type, and the multi-door leaf can be folded and pushed to the side, so that the folding door has the advantages of convenience in use, free sliding and effective saving of occupied space of the door and is widely applied. After the folding door is closed, the door body and the door frame often need to be locked by a door lock. The traditional folding door lock structure is simpler, mainly comprises a rotating shaft provided with a handle, a locking pin deviating from the axis of the rotating shaft is pivotally arranged on the rotating shaft, and a locking groove arranged on a door frame. The working principle of the door lock is as follows: the rotating shaft is driven to rotate by rotating the handle, so that the other end of the locking pin is driven to slide between the position inserted into the locking groove and the position withdrawn from the locking groove, and the opening or locking function is achieved.

However, during actual use, the folding door latch described above is found to be defective: the folding door needs to be manually rotated to be opened and closed, the operation is complicated, and particularly when a door leaf after being opened needs to be closed, the door body and the door frame are not locked due to forgetting to retract the locking pin or misoperation of an operator, potential safety hazards exist, in addition, the locking pin and the upper and lower cross beams of the door frame are collided to cause bruise or scratch, and therefore the design of the folding door lock is needed to solve the problems.

Disclosure of Invention

The utility model provides a folding door lock which is reasonable in structural design, simple and convenient to operate and high in safety, and solves the technical problems in the prior art.

The utility model adopts the technical proposal for solving the technical problems in the prior art that: a folding door lock comprises a lock tongue sliding sleeve fixedly connected with a folding door, wherein a lock tongue is arranged in the lock tongue sliding sleeve in a sliding way; the door lock further comprises a door lock connecting plate connected with one end of the lock tongue and a locking groove matched with the lock tongue; the folding door also comprises the other end which is connected between the door lock connecting plate and the folding door and can drive the lock tongue a pulling assembly sliding between a position inserted in the locking groove and a position withdrawn from the locking groove; the door lock further comprises a reset elastic piece which is connected between the door lock connecting plate and the folding door and drives the lock tongue to reset.

The utility model has the advantages and positive effects that: the utility model provides a folding door lock, which can lock and connect a folding door with a lift car of an elevator by arranging a bolt and a locking groove which are inserted and matched; the upper end part of the lock tongue can be driven to slide between the positions of being inserted into the locking groove and being withdrawn from the locking groove by arranging the lock tongue sliding sleeve and the pulling assembly, so that locking and unlocking of the folding door are realized; through setting up the elastic component that resets, can drive the spring bolt and upwards move to reset when folding door is in the open condition, through above-mentioned setting, when folding door closes, can realize semi-automatic shutting through the cooperation of elastic component that resets with the spring bolt, need not the manual handle that rotates of staff, only need direct promotion/pulling folding door outward towards the car, can lock folding door, the operation process is simple and convenient, the condition emergence of forgetting to lock folding door after avoiding taking place the staff to close folding door has improved the security of car, simultaneously, through setting up the elastic component that resets, can compress the elastic component that resets when spring bolt collides with the locking groove, avoid the spring bolt to take place to collide with the locking groove and cause the injury or fish tail, the life of lock has been prolonged.

Preferably: the pulling assembly comprises a handle mounting piece fixedly connected with the folding door and an outer handle which is arranged between the door lock connecting plate and the handle mounting piece and penetrates through a notch formed in the folding door; one end of the outer handle is hinged with the handle mounting piece through a hinge screw, the other end of the outer handle is movably connected with the door lock connecting plate, and the door lock connecting plate can be driven to longitudinally move by pulling the outer handle.

Preferably: the outer handle is provided with an arc-shaped guide groove, the lower end part of the door lock connecting plate is connected with a handle guide nail which can be slidably penetrated in the arc-shaped guide groove.

Preferably: the bolt is provided with a strip-shaped hole extending along the length direction, and the bolt sliding sleeve is provided with a bolt guide nail which can be slidably penetrated in the strip-shaped hole.

Preferably: a transition surface is arranged at one side of the upper end of the lock tongue, which faces the folding door, and the transition surface is a chamfer surface or a rounded corner surface.

Preferably: the upper end of the outer handle is bent to form a hand-buckling part.

Preferably: and an inner handle arranged on the door lock connecting plate.

Preferably: the reset elastic piece adopts a tension spring.

Drawings

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic illustration of the present utility model in a locked state;

FIG. 3 is a schematic illustration of the present utility model in an unlocked state;

fig. 4 is a schematic view of the use state of the present utility model.

In the figure: 1. a handle mount; 1-1, hinging screws; 2. an outer handle; 2-1, an arc-shaped guide groove; 3. an inner handle; 4. a door lock connecting plate; 4-1, a handle guide pin; 5. a bolt guide pin; 6. a bolt sliding sleeve; 7. a bolt; 7-1, a transition surface; 7-2, a bar-shaped hole; 8. a locking groove; 9. a return elastic member; 10. an upper slide rail; 11. an upper guide wheel structure; 12. a folding door; 12-1, left door panel; 12-2, right door panel; 13. a lower guide wheel structure; 14. and a lower slide rail.

Detailed Description

For a further understanding of the utility model, its features and advantages, the following examples are set forth in detail:

referring to fig. 1, the folding door lock of the present utility model includes a latch sliding sleeve 6 fixedly connected with a folding door 12, in this embodiment, the folding door 12 is in the prior art, and mainly includes a left door panel 12-1 and a right door panel 12-2 hinged to each other by a hinge, wherein the left door panel 12-1 is in rolling contact with a car structure of an elevator, and an edge of the right door panel 12-2 is hinged to a door frame edge of the car structure by a pin. Wherein, the lock tongue sliding sleeve 6 is fixedly connected with the left door plate 12-1.

Referring further to fig. 4, the car structure of the elevator is in the prior art, and mainly comprises a car body, not shown, and further comprises an upper slide rail 10 and a lower slide rail 14 which are respectively installed on an upper door frame and a lower door frame of the car body, wherein the upper slide rail 10 and the lower slide rail 14 are oppositely arranged, an upper guide wheel structure 11 and a lower guide wheel structure 13 are respectively installed on the upper portion and the lower portion of the left door plate 12-1, and the upper guide wheel structure 11 and the lower guide wheel structure 13 are respectively in rolling contact with the upper slide rail 10 and the lower slide rail 14, wherein the upper guide wheel structure 11 and the lower guide wheel structure 13 are in the prior art.

As shown in fig. 1, a lock tongue 7 is slidably arranged in the lock tongue sliding sleeve 6 in a penetrating manner, and the lock tongue sliding sleeve further comprises a locking groove 8 matched with the lock tongue 7, in this embodiment, the locking groove 8 is a notch of the upper sliding rail 10, when the lock tongue 7 is inserted into the notch of the upper sliding rail 10, the folding door 12 is in locking connection with the upper sliding rail 10, so that the locking connection between the folding door 12 and a car structure is realized, and the folding door 12 is prevented from being opened when the car structure ascends; after the lock tongue 7 exits the notch of the upper slide rail 10, the folding door 12 is separated from the upper slide rail 10 and is in locking connection, so that the left door plate 12-1 and the right door plate 12-2 in the folding door 12 are overlapped and move to the side edge of the car, the front side surface of the car structure is in an open state, and workers can conveniently enter the car or transport tools and materials into the car.

With further reference to fig. 2 and 3, a bar-shaped hole 7-2 extending along the length direction of the lock tongue 7 is formed in the lock tongue 7, a lock tongue guide pin 5 slidably penetrating through the bar-shaped hole 7-2 is mounted on the lock tongue sliding sleeve 6, through the arrangement, the moving travel of the lock tongue 7 can be limited, the upper end portion of the lock tongue 7 can slide between the position inserted into the locking groove 8 and the position withdrawn from the locking groove 8, a transition surface 7-1 is arranged at one side, facing the folding door 12, of the upper end of the lock tongue 7 for facilitating the insertion of the lock tongue 7 in the locking groove 8, wherein the transition surface 7-1 is a chamfer surface or a rounded surface, and in the embodiment, the transition surface 7-1 is a rounded surface.

As shown in fig. 1, this embodiment further includes a door lock connecting plate 4 connected with the lower end portion of the lock tongue 7, and the door lock connecting plate 4 is connected with the lower end portion of the lock tongue 7 through a screw, and compared with the conventional scheme of connecting the lock pin and the rotating shaft through a connecting rod, this embodiment connects the lock tongue 7 through the door lock connecting plate 4, and has strong stability and long service life. In addition, a reset elastic member 9 is connected between the door lock connecting plate 4 and the folding door 12, and the reset elastic member 9 can drive the lock tongue 7 to move upwards to a reset state, at this time, the lock tongue 7 is in the maximum stroke of moving upwards, and in this embodiment, the reset elastic member 9 adopts a tension spring. The embodiment also comprises a pulling component which is connected between the door lock connecting plate 4 and the folding door 12 and can drive the upper end part of the lock tongue 7 to slide between the positions of being inserted into the locking groove 8 and being withdrawn from the locking groove 8.

By arranging the transition surface 7-1 and the reset elastic piece 9, the reset elastic piece 9 can be compressed when the lock tongue 7 collides with the locking groove 8, so that the lock tongue 7 is prevented from being bumped with the locking groove 8 to cause bruise or scratch.

As shown in fig. 2, the pulling assembly comprises a handle mounting piece 1 fixedly connected with a left door plate 12-1 in a folding door 12, and further comprises an outer handle 2 arranged between a door lock connecting plate 4 and the handle mounting piece 1, wherein the outer handle 2 is of a U-shaped structure and is arranged in a notch formed in the folding door 12 in a penetrating manner, and further, in order to facilitate the operation of a worker, the upper end part of the outer handle 2 is bent to form a hand buckling part. The inner end part of the outer handle 2 is connected with the mounting piece 1, and the outer end part passes through the notch and extends to the outside of the elevator car; the inner end of the outer handle 2 is hinged to the handle attachment 1 by a hinge screw 1-1.

As shown in fig. 2, the other end of the outer handle 2 is movably connected with the door lock connecting plate 4, and the door lock connecting plate 4 can be driven to longitudinally move by pulling the outer handle 2. The method comprises the following steps: the side wall of the outer handle 2 is provided with an arc-shaped guide groove 2-1, and the lower end part of the door lock connecting plate 4 is connected with a handle guide nail 4-1 which can be slidably arranged in the arc-shaped guide groove 2-1 in a penetrating way.

In addition, in order to facilitate the opening and closing of the folding door 12 by the staff in the car, the present embodiment further comprises an inner handle 3 mounted on the door lock link plate 4.

Working principle:

when the folding door 12 is in a closed state, the lock tongue 7 is inserted into the locking groove 8 under the action of the reset elastic piece 9, and the handle guide nail 4-1 is positioned at the upper part of the arc-shaped guide groove 2-1 as shown in fig. 2;

when a worker needs to open the folding door 12 outside the elevator car, the worker only needs to insert fingers into the hand buckling part of the outer handle 2 and pull the outer handle 2 downwards, the door lock connecting plate 4 is pulled to move downwards under the drive of the outer handle 2, and then the lock tongue 7 is driven to move downwards, so that the lock tongue 7 is withdrawn from the locking groove 8, the locking connection between the folding door 12 and the elevator car is released, and the reset elastic piece 9 is in a stretching state (shown in fig. 3); after the outer handle 2 is pulled downwards, the left door plate 12-1 is pushed towards the inside of the car, so that the left door plate 12-1 and the right door plate 12-2 are overlapped and move to the side edge of the car, the purpose of opening the folding door 12 is achieved, workers can conveniently enter the car or transport tools and materials into the car, at the moment, the reset elastic piece 9 drives the lock tongue 7 to move upwards to a reset state, namely, the lock tongue 7 is in the maximum stroke of upward movement;

after a worker enters the elevator car, pushing the left door plate 12-1 towards the elevator car to enable the left door plate 12-1 and the right door plate 12-2 to be unfolded, continuously pushing the left door plate 12-1 after the lock tongue 7 is contacted with the locking groove 8, under the action of the locking groove 8 (the upper sliding rail 10 in the embodiment), enabling the lock tongue 7 to move downwards and simultaneously driving the door lock connecting plate 4 to move downwards, enabling the moving door lock connecting plate 4 to pull the reset elastic piece 9, enabling the lock tongue 7 to be positioned at a notch position opposite to the locking groove 8 when the folding door 12 is pushed to be in a closed state, and then enabling the upper end portion of the lock tongue 7 to be inserted into the locking groove 8 under the action of the reset elastic piece 9, so that the purpose of locking the folding door 12 is achieved;

when a worker needs to open the folding door 12 in the elevator car, the worker only needs to hold the inner handle 3 and pull the door lock connecting plate 4 downwards, further drives the lock tongue 7 to move downwards, enables the lock tongue 7 to withdraw from the locking groove 8, and then pulls the left door plate 12-1 into the elevator car, so that the left door plate 12-1 and the right door plate 12-2 are overlapped and move to the side edge of the elevator car, and finally the purpose of opening the folding door 12 is achieved.

Claims

1. A folding door lock, characterized by: comprises a lock tongue sliding sleeve (6) fixedly connected with a folding door (12), wherein a lock tongue (7) is arranged in the lock tongue sliding sleeve (6) in a sliding way; the door lock further comprises a door lock connecting plate (4) connected with one end of the lock tongue (7), and a locking groove (8) matched with the lock tongue (7); the lock further comprises a pulling component which is connected between the door lock connecting plate (4) and the folding door (12) and can drive the other end of the lock tongue (7) to slide between the positions of being inserted into the locking groove (8) and being withdrawn from the locking groove (8); the door lock further comprises a reset elastic piece (9) which is connected between the door lock connecting plate (4) and the folding door (12) and drives the lock tongue (7) to reset.

2. The folding door lock of claim 1, wherein: the pulling assembly comprises a handle mounting piece (1) fixedly connected with the folding door (12), and further comprises an outer handle (2) arranged between the door lock connecting plate (4) and the handle mounting piece (1) and penetrating into a notch formed in the folding door (12); one end of the outer handle (2) is hinged with the handle mounting piece (1) through a hinge screw (1-1), the other end of the outer handle is movably connected with the door lock connecting plate (4), and the door lock connecting plate (4) can be driven to longitudinally move by pulling the outer handle (2).

3. The folding door lock of claim 2, wherein: an arc-shaped guide groove (2-1) is formed in the outer handle (2), and a handle guide nail (4-1) which can be slidably arranged in the arc-shaped guide groove (2-1) in a penetrating manner is connected to the lower end part of the door lock connecting plate (4).

4. The folding door lock of claim 1, wherein: a strip-shaped hole (7-2) extending along the length direction of the bolt is formed in the bolt (7), and a bolt guide nail (5) which can be slidably arranged in the strip-shaped hole (7-2) in a penetrating mode is arranged on the bolt sliding sleeve (6).

5. The folding door lock of claim 1, wherein: a transition surface (7-1) is arranged at one side of the upper end of the lock tongue (7) facing the folding door (12), and the transition surface (7-1) is a chamfer surface or a rounded corner surface.

6. The folding door lock of claim 1, wherein: the upper end part of the outer handle (2) is bent to form a hand-buckling part.

7. The folding door lock of claim 1, wherein: the door lock also comprises an inner handle (3) arranged on the door lock connecting plate (4).

8. The folding door lock of claim 1, wherein: the return elastic piece (9) adopts an extension spring.