Safety protection device for elevator maintenance

Abstract

The utility model discloses a safety protection device for elevator maintenance, which comprises an elevator car, an elevator controller and a plunger, a guide shoe mounting plate is fixedly connected to a car frame of the elevator car, one side of the guide shoe mounting plate extends outwards to form a connecting plate, and a support is fixedly connected to the bottom of the connecting plate; the plunger movably penetrates through the support, the support is fixedly connected with a position detection switch, and the position detection switch is used for detecting the position of the plunger and sending a corresponding signal to the elevator controller. According to the safety protection device for elevator overhaul, the structure is reasonable, the position detection switch is arranged, the position state of the inserting rod can be detected through the position detection switch, the running state of an elevator is controlled according to the detection result, and therefore safety can be further improved.

Description

Technical Field

[0001] The utility model relates to a safety protection device for elevator maintenance. Background Art

[0002] As a special equipment that provides height changes, elevators often need to be maintained. Elevator maintenance personnel need to enter the elevator shaft and carry out activities on the elevator car. Therefore, a special safety protection device for maintenance is generally installed on the elevator car to prevent safety accidents caused by elevator movement. When the existing safety protection device is used, the maintenance personnel will insert the rod set on the car into the socket of the elevator guide rail to fix the car relative to the guide rail. However, the existing safety protection device has the following problems during actual use: when in use, the elevator operation state cannot be controlled according to the change in the position state of the rod, resulting in certain safety hazards. To this end, it is necessary to design corresponding technical solutions to solve the above problems. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a safety protection device for elevator maintenance to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the technical solution of the utility model is to design a safety protection device for elevator maintenance, comprising an elevator car, an elevator controller and an insert rod, wherein a guide shoe mounting plate is fixedly connected to the car frame of the elevator car, one side of the guide shoe mounting plate extends outward to form a connecting plate, and a bracket is fixedly connected to the bottom of the connecting plate;

[0005] The plunger is movably arranged on the bracket, and a position detection switch is fixedly connected to the bracket. The position detection switch is used to detect the position of the plunger and send a corresponding signal to the elevator controller.

[0006] Preferably, the bracket is an inverted U-shaped structure.

[0007] Preferably, the top plate of the bracket is fixedly connected to the connecting plate by a bolt and nut assembly, and a waist-shaped hole for the bolt to pass through is provided on the top plate.

[0008] Preferably, guide holes are respectively provided on the two side panels of the bracket, the guide holes on the two side panels are coaxial, and the insertion rods are passed through the guide holes on the two side panels.

[0009] Preferably, the position detection switch is fixedly connected to the side panel, and the position detection switch is located below the end of the plunger away from the elevator guide rail.

[0010] Preferably, the guide shoe mounting plate is fixedly connected to the car frame via a bolt and nut assembly, and a waist-shaped hole for the bolt to pass through is provided on the guide shoe mounting plate.

[0011] The advantages and beneficial effects of the present invention are: providing a safety protection device for elevator maintenance, which has a reasonable structure. By setting a position detection switch, the position state of the plunger can be detected by the position detection switch, and the elevator operation state can be controlled according to the detection result, which is conducive to further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the present utility model. DETAILED DESCRIPTION

[0013] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0014] The technical solution specifically implemented in this utility model is:

[0015] like Figure 1 As shown, a safety protection device for elevator maintenance includes an elevator car, an elevator controller, and an insert rod 4. A guide shoe mounting plate 1 is fixedly connected to the car frame 100 of the elevator car. One side of the guide shoe mounting plate 1 extends outward to form a connecting plate 2. The bottom of the connecting plate 2 is fixedly connected to a bracket 3.

[0016] The plunger 4 is movably provided on the bracket 3 , and a position detection switch 5 is fixedly connected to the bracket 3 . The position detection switch 5 is used to detect the position of the plunger 4 and send a corresponding signal to the elevator controller.

[0017] The present invention provides a safety protection device for elevator maintenance. By installing it on the connecting edge 2 of the guide shoe mounting plate 1, it replaces the traditional installation method of installing it on the side or bottom surface of the car frame upper beam, making it easier to manufacture and install. Specifically, when the elevator needs to be repaired, the maintenance personnel move the plunger 4 into the jack of the elevator guide rail. At this time, the position detection switch 5 will detect the change in the position of the plunger 4 and send a signal to the elevator controller, causing the elevator controller to control the elevator to stop operation, thereby improving safety.

[0018] Furthermore, the bracket 3 is an inverted U-shaped structure.

[0019] Furthermore, the top plate 31 of the bracket 3 is fixedly connected to the connecting plate 2 by a bolt and nut assembly, and a waist-shaped hole for the bolt to pass through is provided on the top plate 31. By adopting the above solution, the installation position of the bracket 3 can be fine-tuned.

[0020] Furthermore, guide holes are respectively provided on the two side plates 32 of the bracket 3 . The guide holes on the two side plates 32 are coaxial, and the insertion rod 4 is passed through the guide holes on the two side plates 32 .

[0021] Furthermore, the position detection switch 5 is fixedly connected to the side plate 32, and the position detection switch 5 is located below the end of the plunger 4 away from the elevator guide rail.

[0022] Furthermore, the guide shoe mounting plate 1 is fixedly connected to the car frame 100 by a bolt and nut assembly, and a waist-shaped hole for the bolt to pass through is provided on the guide shoe mounting plate 1. By adopting the above solution, the installation position of the guide shoe mounting plate 1 can be fine-tuned.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A safety protection device for elevator maintenance, comprising an elevator car, an elevator controller, and an inserter, wherein a guide shoe mounting plate is fixedly connected to the car frame of the elevator car, and characterized in that: One side of the guide shoe mounting plate extends outward to form a connecting plate, and a bracket is fixedly connected to the bottom of the connecting plate; The plunger is movably arranged on the bracket, and a position detection switch is fixedly connected to the bracket. The position detection switch is used to detect the position of the plunger and send a corresponding signal to the elevator controller.

2. The elevator maintenance safety protection device according to claim 1, characterized in that: The bracket is an inverted U-shaped structure.

3. The elevator maintenance safety protection device according to claim 2, characterized in that: The top plate of the bracket is fixedly connected to the connecting plate through a bolt and nut assembly, and a waist-shaped hole for the bolt to pass through is provided on the top plate.

4. The elevator maintenance safety protection device according to claim 3, characterized in that: The two side plates of the bracket are respectively provided with guide holes, the guide holes on the two side plates are coaxial, and the insertion rods are passed through the guide holes on the two side plates.

5. The elevator maintenance safety protection device according to claim 4, characterized in that: The position detection switch is fixedly connected to the side plate, and the position detection switch is located below the end of the plunger away from the elevator guide rail.

6. The elevator maintenance safety protection device according to claim 1, characterized in that: The guide shoe mounting plate is fixedly connected to the car frame through a bolt and nut assembly, and a waist-shaped hole for the bolt to pass through is provided on the guide shoe mounting plate.

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