Elevator maintenance anti-closing bracket

Abstract

The utility model discloses an elevator maintenance prevents closing support relates to elevator with blocking door ware field, including the mounting bracket of bottom is open, the bottom both ends of mounting bracket integrative have the support plate that protrude outward, the top plate center of mounting bracket is connected with screw rod, the top end fixed mounting of screw rod has the handle, the bottom end of screw rod is connected with the down -pressing mechanism, the inner wall axial sliding of mounting bracket installs two outer clamping mechanisms, and the down -pressing mechanism of moving is used for driving two outer clamping mechanisms synchronous movement. The utility model discloses through setting up outer clamping mechanism, can realize the device can adapt to different thickness's sill, thereby improving the applicability of device.

Description

Technical Field

[0001] This utility model relates to the field of elevator door stoppers, specifically an elevator maintenance anti-closing bracket. Background Technology

[0002] The main reasons for using door jacks during elevator maintenance are as follows: When maintenance personnel enter and exit the elevator car and shaft, using door jacks can prevent the elevator doors from accidentally closing and injuring people, providing a safe working space for maintenance personnel; during maintenance, it is often necessary to perform operations such as wiring checks and component replacements between the car door and the landing door, and door jacks keep the door open, making it easier for maintenance personnel to operate with both hands and improving work efficiency.

[0003] Existing door jacks typically lock into the sill to prevent the elevator door from closing. However, the clamping plates of existing door jacks have a certain thickness, which prevents them from being inserted into the sill when it is narrow, resulting in limited applicability. Utility Model Content

[0004] The purpose of this utility model is to provide an elevator maintenance anti-closing bracket in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator maintenance anti-closing bracket, comprising a mounting frame with an open bottom, support plates integrally formed at both ends of the bottom of the mounting frame protruding outwards, a screw threadedly connected to the center of the top plate of the mounting frame, a handle fixedly installed at the top end of the screw, a pressing mechanism connected to the bottom end of the screw, and two external clamping mechanisms axially slidingly installed on the inner wall of the mounting frame, the movable pressing mechanism being used to drive the two external clamping mechanisms to move synchronously.

[0006] As a further embodiment of this utility model: the pressing mechanism includes an extrusion head rotatably mounted on the bottom end of the screw, the two sides of the extrusion head are formed with inwardly downward inclined extrusion slopes, the top end of the extrusion head is provided with a downwardly recessed rotating groove, the inner wall of the rotating groove is rotatably mounted with a rotating ring, and the top end of the rotating ring is fixedly connected to the bottom end of the screw.

[0007] As a further embodiment of this utility model: the external clamping mechanism includes a guide shaft fixedly installed between the two vertical plates of the mounting frame, a clamping plate slidably installed on the outer wall of the guide shaft, a pressure-bearing inclined surface that matches the extrusion inclined surface is formed at the top of the clamping plate, and a multi-step structure is formed on the outer side of the clamping plate.

[0008] As a further embodiment of this utility model: a receiving groove is provided on the outer side of the clamping plate, the diameter of the receiving groove is larger than the diameter of the guide shaft, and the closed end of the receiving groove is fixedly installed on a spring fixedly connected to the inner side of the mounting frame, and the spring is sleeved on the outer periphery of the guide shaft.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. By setting an external clamping mechanism, the device can be adapted to sills of different thicknesses, thereby improving the applicability of the device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0013] Figure 3 For the present utility model Figure 1 Enlarged view of a portion of point A in the middle.

[0014] In the diagram: 1. Mounting bracket; 2. Support plate; 3. Screw; 4. Handle; 5. Extrusion head; 6. Clamping plate; 7. Receiving groove; 8. Guide shaft; 9. Spring; 10. Step; 11. Rotating ring; 12. Pressure slope. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-3 In this embodiment of the utility model, an elevator maintenance anti-closing bracket includes a mounting bracket 1 with an open bottom. The bottom two ends of the mounting bracket 1 are integrally formed with outwardly protruding support plates 2. A screw rod 3 is threadedly connected to the center of the top plate of the mounting bracket 1. A handle 4 is fixedly installed at the top of the screw rod 3. A pressing mechanism is connected to the bottom of the screw rod 3. Two external clamping mechanisms are axially slidably installed on the inner wall of the mounting bracket 1. The moving pressing mechanism is used to drive the two external clamping mechanisms to move synchronously.

[0017] In this embodiment: When performing elevator maintenance, the external clamping mechanism is inserted into the elevator sill. Then, the screw 3 is rotated by the handle 4. During the rotation, the screw 3 rotates downward, which drives the pressing mechanism to move downward. At this time, the pressing mechanism, which moves vertically downward, squeezes the external clamping mechanism, causing the external clamping mechanism to open outward and press against the inside of the sill. At this time, the device can clamp the inside of the sill. Since the elevator door needs to move along the sill when closing, the installed device can prevent the elevator door from closing, keeping the elevator door in the open state, thus facilitating elevator maintenance.

[0018] Please refer to this carefully. Figure 1 , Figure 2 The pressing mechanism includes an extrusion head 5 rotatably mounted on the bottom end of the screw 3. The extrusion head 5 has inwardly inclined extrusion slopes formed on both sides. The top end of the extrusion head 5 has a downwardly recessed rotating groove. A rotating ring 11 is rotatably mounted on the inner wall of the rotating groove. The top end of the rotating ring 11 is fixedly connected to the bottom end of the screw 3.

[0019] In this embodiment: when the handle 4 is turned, the handle 4 drives the screw 3 to rotate. The screw 3 rotates downward. At this time, the screw 3 pushes the extrusion head 5 to move downward. The extrusion head 5 moves downward and squeezes the pressure slope 12 through the extrusion slope. At this time, the outer clamping mechanism can expand outward and clamp to the inside of the sill.

[0020] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The external clamping mechanism includes a guide shaft 8 fixedly installed between two vertical plates of the mounting frame 1. A clamping plate 6 is slidably installed on the outer wall of the guide shaft 8. The top of the clamping plate 6 is formed with a pressure-bearing inclined surface 12 that matches the extrusion inclined surface. The outer side of the clamping plate 6 is formed with a multi-step structure of steps 10. A receiving groove 7 is opened on the outer side of the clamping plate 6. The diameter of the receiving groove 7 is larger than the diameter of the guide shaft 8. The closed end of the receiving groove 7 is fixedly installed with a spring 9 fixedly connected to the inner side of the mounting frame 1. The spring 9 is sleeved on the outer periphery of the guide shaft 8.

[0021] In this embodiment: when the pressure inclined plane 12 is under force, the two clamping plates 6 move outward. The clamping plates 6 move outward along the guide shaft 8. At this time, the spring 9 is compressed. Due to the design of the receiving groove 7, when the spring 9 is fully compressed, it is completely located inside the receiving groove 7 and will not affect the opening distance of the clamping plate 6.

[0022] Furthermore, by designing a stepped platform 10, the clamping plate 6 can be inserted into sills of different widths, thereby improving the applicability of the device.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An elevator maintenance anti-closing bracket, comprising a mounting bracket (1) with an open bottom, characterized in that, The mounting bracket (1) has outwardly protruding support plates (2) integrally formed at both ends of its bottom. A screw rod (3) is threadedly connected to the center of the top plate of the mounting bracket (1). A handle (4) is fixedly installed at the top of the screw rod (3). A pressing mechanism is connected to the bottom of the screw rod (3). Two external clamping mechanisms are axially slidably installed on the inner wall of the mounting bracket (1). The moving pressing mechanism is used to drive the two external clamping mechanisms to move synchronously.

2. The elevator maintenance anti-closing bracket according to claim 1, characterized in that, The pressing mechanism includes an extrusion head (5) rotatably mounted on the bottom end of the screw (3). The extrusion head (5) has inwardly downward inclined extrusion surfaces on both sides. The top end of the extrusion head (5) has a downwardly recessed rotating groove. A rotating ring (11) is rotatably mounted on the inner wall of the rotating groove. The top end of the rotating ring (11) is fixedly connected to the bottom end of the screw (3).

3. The elevator maintenance anti-closing bracket according to claim 2, characterized in that, The external clamping mechanism includes a guide shaft (8) fixedly installed between two vertical plates of the mounting frame (1). A clamping plate (6) is slidably installed on the outer wall of the guide shaft (8). The top of the clamping plate (6) is formed with a pressure-bearing inclined surface (12) that matches the extrusion inclined surface. The outer side of the clamping plate (6) is formed with a multi-step structure of steps (10).

4. The elevator maintenance anti-closing bracket according to claim 3, characterized in that, The clamping plate (6) has a receiving groove (7) on its outer side. The diameter of the receiving groove (7) is larger than the diameter of the guide shaft (8). The closed end of the receiving groove (7) is fixedly installed on the spring (9) fixedly connected to the inner side of the mounting bracket (1). The spring (9) is sleeved on the outer periphery of the guide shaft (8).

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