Front side car top guardrail of elevator

Abstract

The utility model discloses an elevator front side car top guardrail, which belongs to the technical field of elevator car top guardrails, and comprises an elevator car and guardrail bodies, the top of the elevator car is fixedly connected with the guardrail bodies, one side of each guardrail body is open, the open end of one guardrail body is fixedly connected with a support bracket A, and the open end of the other guardrail body is fixedly connected with a support bracket B; the free end of the supporting bracket A is fixedly connected with a supporting seat, and the end face of the supporting seat is rotationally connected with a rotary guardrail through a rotary connecting piece. When maintenance personnel enter the car roof, the rotary guardrail is pushed to rotate towards the inner side of the car, the limiting switch is switched off, the elevator safety circuit is switched off, and the car cannot be started; after maintenance personnel enter the car roof, the rotary guardrail returns and rotates towards the outer side of the car under the torsion of the rotary connecting piece, after the rotary guardrail rotates to a designated position, the limiting switch is pressed on the surface of the limiting seat, the limiting switch is switched on, and the elevator safety circuit returns to normal.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car top guardrails, and more specifically, to an elevator front car top guardrail. Background Art

[0002] The elevator car is a box-shaped space used to carry and transport people and materials. A roof guardrail is often installed at the top of the car.

[0003] After searching, the existing announcement number CN220811517U is an elevator car top guardrail, which includes an elevator car and a guardrail assembly installed on the top of the elevator car. The guardrail assembly includes a front guard plate, a rear guardrail, a left guardrail and a right guardrail. The front guard plate, the rear guardrail, the left guardrail and the right guardrail are respectively installed around the top of the elevator car. An inlet and an outlet are opened on the front side surface of the front guard plate. Door panels are embedded on the inner wall surfaces on both sides of the inlet and the outlet for sealing the inlet and the outlet. A circle of guardrails is formed on the top of the elevator car by the front guard plate, the rear guardrail, the left guardrail and the right guardrail to improve the safety of the staff working on the top of the elevator car. When the staff needs to enter and exit the top of the elevator car, they only need to push the two door panels into the two grooves respectively. The door panels are stored in the grooves in a translational manner, which can reduce the space occupied by the door panels, and the door panels will not affect the use of the entire guardrail assembly.

[0004] The door machine is installed on the front side of the elevator car. In order to avoid interference between the door machine and the car top guardrail, the car top guardrails on both sides of the elevator cannot be set to the door machine installation area on the front side of the car. This will cause a large height distance between the car top guardrail and the front edge of the car. If the distance is >150mm, it does not meet the national standard requirements. Therefore, it is necessary to install a guardrail on the front side of the car to protect the safety of maintenance personnel entering the car top. Therefore, we proposed an elevator front car top guardrail to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a guardrail on the top of the elevator car at the front side, wherein the support bracket A and the support bracket B are fixedly connected to the guardrail body of the elevator car, the support seat is connected to the support bracket A, and the rotating guardrail is connected to the support seat through a rotating connecting piece, the rotating guardrail can rotate around the support seat, and the rotating connecting piece generates a certain torque to prevent the rotating guardrail from rotating; when the maintenance personnel enter the car top, they push the rotating guardrail to rotate toward the inside of the car, at this time the limit switch is disconnected, the elevator safety circuit is disconnected, and the car cannot be started; after the maintenance personnel enter the car top, the rotating guardrail returns to the outside of the car under the torque of the rotating connecting piece and rotates, and when the rotating guardrail rotates to the specified position, the limit switch is pressed on the surface of the limit seat, the limit switch is turned on, and the elevator safety circuit returns to normal; at the same time, the elevator magnet absorbs and fixes the rotating guardrail and the support bracket B to prevent the rotating guardrail from rotating at will, ensure that the limit switch does not malfunction, and improve safety.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] An elevator front car top guardrail comprises an elevator car and a guardrail body, wherein the guardrail body is fixedly connected to the top of the elevator car, one side of the guardrail body is open, one open end of the guardrail body is fixedly connected to a support bracket A, the free end of the support bracket A is fixedly connected to a support seat, the end surface of the support seat is rotatably connected to a rotating guardrail through a rotating connecting piece, the free end of the rotating guardrail is welded with an assembly seat, and the surface of the assembly seat is detachably connected to a limit switch through bolts;

[0010] Another open end of the guardrail body is fixedly connected to a support bracket B, and the surface of the support seat is fixedly connected to an elevator magnet.

[0011] Preferably, an access channel is provided on the surface of the support seat, and the rotating guardrail corresponds to the access channel of the support seat.

[0012] Preferably, a push handle is fixedly connected to the free end of the rotating guardrail, and anti-slip grooves are provided at the push handle of the rotating guardrail.

[0013] Preferably, the limit switch is located on one side of the rotating guardrail, and the limit switch and the rotating guardrail are in a vertical installation structure.

[0014] Preferably, the elevator magnet is located inside the entrance and exit channel of the support seat, and the surface of the support seat is fixedly connected to the limit seat.

[0015] Preferably, the limit seat corresponds to the limit switch.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) In this solution, support bracket A and support bracket B are fixedly connected to the guardrail body of the elevator car, the support seat is connected to support bracket A, and the rotating guardrail is connected to the support seat through a rotating connector. The rotating guardrail can rotate around the support seat, and the rotating connector generates a certain torque to prevent the rotating guardrail from rotating. When maintenance personnel enter the car top, they push the rotating guardrail to rotate toward the inside of the car. At this time, the limit switch is disconnected, the elevator safety circuit is disconnected, and the car cannot be started.

[0019] (2) In this solution, after the maintenance personnel enter the car roof, the rotating guardrail rotates back to the outside of the car under the torque of the rotating connector. When the rotating guardrail rotates to the specified position, the limit switch is pressed against the surface of the limit seat, the limit switch is turned on, and the elevator safety circuit returns to normal; at the same time, the elevator magnet attracts and fixes the rotating guardrail and the support bracket B to prevent the rotating guardrail from rotating at will, ensuring that the limit switch does not malfunction, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the rotating guardrail of the utility model;

[0022] Figure 3 This is a schematic diagram of the support bracket B and the elevator magnet structure of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Elevator car; 2. Guardrail body; 3. Support bracket A; 4. Support bracket B; 5. Support seat; 6. Rotating guardrail; 7. Rotating connector; 8. Elevator magnet; 9. Limit switch; 10. Assembly seat; 11. Limit seat. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] See also Figure 1-3A front-side elevator car top guardrail comprises an elevator car 1 and a guardrail body 2, the top of the elevator car 1 is fixedly connected with the guardrail body 2, one side of the guardrail body 2 is open, one open end of the guardrail body 2 is fixedly connected with a support bracket A3, the free end of the support bracket A3 is fixedly connected with a support seat 5, the end surface of the support seat 5 is rotatably connected with a rotating guardrail 6 through a rotating connector 7, the free end of the rotating guardrail 6 is welded with an assembly seat 10, and the surface of the assembly seat 10 is detachably connected with a limit switch 9 through bolts;

[0028] The open end of the other guardrail body 2 is fixedly connected to a support bracket B4, and the surface of the support seat 5 is fixedly connected to an elevator magnet 8.

[0029] An access channel is provided on the surface of the support seat 5, and the rotating guardrail 6 corresponds to the access channel of the support seat 5. A push handle is fixedly connected to the free end of the rotating guardrail 6, and anti-slip grooves are provided at the push handle position of the rotating guardrail 6. The limit switch 9 is located on one side of the rotating guardrail 6, and the limit switch 9 and the rotating guardrail 6 are in a vertical installation structure. The elevator magnet 8 is located inside the access channel of the support seat 5, and a limit seat 11 is fixedly connected to the surface of the support seat 5, and the limit seat 11 corresponds to the limit switch 9.

[0030] It should be noted that the support bracket A3 and the support bracket B4 are fixedly connected to the guardrail body 2 of the elevator car 1, the support seat 5 is connected to the support bracket A3, and the rotating guardrail 6 is connected to the support seat 5 through a rotating connector 7. The rotating guardrail 6 can rotate around the support seat 5, and the rotating connector 7 generates a certain torque to prevent the rotating guardrail 6 from rotating; when the maintenance personnel enter the car top, they push the rotating guardrail 6 to rotate inside the car. At this time, the limit switch 9 is disconnected, the elevator safety circuit is disconnected, and the car cannot be started; after the maintenance personnel enter the car top, the rotating guardrail 6 returns to the outside of the car under the torque of the rotating connector 7, and when the rotating guardrail 6 rotates to the specified position, the limit switch 9 is pressed on the surface of the limit seat 11, the limit switch 9 is turned on, and the elevator safety circuit returns to normal; at the same time, the elevator magnet 8 fixes the rotating guardrail 6 and the support bracket B4 to prevent the rotating guardrail 6 from rotating at will, ensure that the limit switch 9 does not malfunction, and improve safety.

[0031] When in use: the support bracket A3 and the support bracket B4 are fixedly connected to the guardrail body 2 of the elevator car 1, the support seat 5 is connected to the support bracket A3, and the rotating guardrail 6 is connected to the support seat 5 through the rotating connector 7. The rotating guardrail 6 can rotate around the support seat 5, and the rotating connector 7 generates a certain torque to prevent the rotating guardrail 6 from rotating; when the maintenance personnel enter the car top, they push the rotating guardrail 6 to rotate inside the car. At this time, the limit switch 9 is disconnected, the elevator safety circuit is disconnected, and the car cannot be started; after the maintenance personnel enter the car top, the rotating guardrail 6 returns to the outside of the car under the torque of the rotating connector 7. When the rotating guardrail 6 rotates to the specified position, the limit switch 9 is pressed on the surface of the limit seat 11, the limit switch 9 is turned on, and the elevator safety circuit returns to normal; at the same time, the elevator magnet 8 fixes the rotating guardrail 6 and the support bracket B4 to prevent the rotating guardrail 6 from rotating at will, ensure that the limit switch 9 does not malfunction, and improve safety.

[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An elevator front car top guardrail, comprising an elevator car (1) and a guardrail body (2), wherein the top of the elevator car (1) is fixedly connected with the guardrail body (2), characterized in that: One side of the guardrail body (2) is open-type, wherein an open end of one of the guardrail bodies (2) is fixedly connected to a support bracket A (3), a free end of the support bracket A (3) is fixedly connected to a support seat (5), an end surface of the support seat (5) is rotatably connected to a rotating guardrail (6) via a rotating connector (7), an assembly seat (10) is welded to the free end of the rotating guardrail (6), and a limit switch (9) is detachably connected to the surface of the assembly seat (10) via bolts; The open end of the other guardrail body (2) is fixedly connected to a support bracket B (4), and the surface of the support seat (5) is fixedly connected to an elevator magnet (8).

2. The elevator front car top guardrail according to claim 1, characterized in that: An access channel is provided on the surface of the support seat (5), and the rotating guardrail (6) corresponds to the access channel of the support seat (5).

3. The elevator front car top guardrail according to claim 1, characterized in that: A push handle is fixedly connected to the free end of the rotating guardrail (6), and anti-slip grooves are arranged at the push handle position of the rotating guardrail (6).

4. The elevator front car top guardrail according to claim 1, characterized in that: The limit switch (9) is located on one side of the rotating guardrail (6), and the limit switch (9) and the rotating guardrail (6) are in a vertical installation structure.

5. The elevator front car top guardrail according to claim 1, characterized in that: The elevator magnet (8) is located inside the access channel of the support seat (5), and the surface of the support seat (5) is fixedly connected to the limit seat (11).

6. The elevator front car top guardrail according to claim 5, characterized in that: The limit seat (11) corresponds to the limit switch (9).

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