Fixing device for elevator maintenance

Abstract

The utility model belongs to the technical field of elevator maintenance, and particularly relates to an elevator maintenance fixing device which comprises a connecting rod, telescopic rods are symmetrically connected to the left side and the right side of the connecting rod in a sliding mode, transverse plates and vertical plates are fixedly connected to the sides, away from each other, of the two telescopic rods, and locking assemblies are installed between the connecting rod and the telescopic rods. The locking assembly comprises a plurality of springs, a rectangular groove is formed in the connecting rod, a moving plate is slidably connected into the rectangular groove, the springs are installed on one side of the moving plate, the moving plate extends out of the connecting rod to be fixedly connected with a locking block, the telescopic rod is provided with a plurality of locking grooves, and a lifting assembly extending out of the connecting rod is installed on the side, close to the springs, of the moving plate. The telescopic rod can be conveniently adjusted through the arrangement of the spring and the locking block, then the efficiency of installing the fixing device is improved, and the telescopic rod can be contracted to be convenient to carry.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator maintenance, and in particular relates to a fixing device for elevator maintenance. Background Art

[0002] As people's quality of life improves, elevators are used in more and more places. Elevators need to be maintained and repaired frequently. When performing elevator maintenance and repair, workers are often required to enter the elevator shaft for construction. When performing maintenance, they need to fix the safety rope to the device set at the elevator door to avoid the tragedy of elevator maintenance workers falling to death in the elevator shaft.

[0003] The existing device for fixing the safety rope usually uses a threaded connection telescopic rod to adjust the fixed plate abutting the elevator entrance so that the fixed plate abuts the elevator entrance. However, since the fixing device needs to be placed on the ground during adjustment, and the device is close to the abutment, it is inconvenient to drive the telescopic rod to rotate to adjust the extension length. At the same time, the threaded connection method is time-consuming and labor-intensive, which brings inconvenience to maintenance personnel and therefore needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a fixing device for elevator maintenance, which can facilitate the adjustment of the telescopic rod through the arrangement of a spring and a locking block, thereby improving the efficiency of installing the fixing device, and can shrink the telescopic rod for easy carrying.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] An elevator maintenance fixing device comprises a connecting rod, wherein the connecting rod is symmetrically slidably connected with telescopic rods on both sides, and the two telescopic rods are fixedly connected with a horizontal plate and a vertical plate on the side away from each other, and a locking assembly is installed between the connecting rod and the telescopic rod;

[0007] The locking assembly includes a plurality of springs, a rectangular groove is provided inside the connecting rod, a moving plate is slidably connected inside the rectangular groove, a plurality of the springs are installed on one side of the moving plate, the moving plate extends out of the connecting rod and is fixedly connected to a locking block, the telescopic rod is provided with a plurality of locking grooves, and a lifting assembly extending out of the connecting rod is installed on the side of the moving plate close to the spring.

[0008] The lifting assembly includes a connecting column fixedly connected to the moving plate, the connecting column is fixedly connected to a pull ring, the lower end of the pull ring is fixedly connected to two abutment plates matching the connecting rod, and the abutment plates are installed with anti-wear parts.

[0009] The anti-wear part includes a smooth arc plate, the two abutment plates extend to a side away from the pull ring, step grooves are provided inside the two abutment plates, sliding rods are slidably connected inside the two step grooves, and the smooth arc plate is installed on one side of the two sliding rods.

[0010] A fixing hole is provided on one side of the two telescopic rods away from each other.

[0011] The two telescopic rods are rectangular in shape, and the connecting rod is circular in shape.

[0012] A rectangular plate is fixedly connected to one side of the connecting rods away from each other, and the rectangular plate is slidably connected to the telescopic rod.

[0013] The utility model can facilitate the adjustment of the telescopic rod by arranging the spring and the locking block, thereby improving the efficiency of installing the fixing device, and can shrink the telescopic rod for easy carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0015] Figure 1 This is a structural schematic diagram of a fixing device for elevator maintenance according to the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of a fixing device for elevator maintenance according to the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0018] The main component symbols are described as follows:

[0019] Connecting rod 1, telescopic rod 11, horizontal plate 12, vertical plate 13, spring 14, moving plate 15, locking block 16, locking groove 17, connecting column 20, pull ring 21, abutting plate 22, smooth arc plate 23, step groove 24, sliding rod 25, rectangular plate 26. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Example 1: Figure 1-3 As shown, the utility model is a fixing device for elevator maintenance, comprising a connecting rod 1, the connecting rod 1 is symmetrically slidably connected with telescopic rods 11 on both sides, the two telescopic rods 11 are fixedly connected with a horizontal plate 12 and a vertical plate 13 on the side away from each other, and a locking assembly is installed between the connecting rod 1 and the telescopic rod 11;

[0022] The locking assembly includes a plurality of springs 14, a rectangular groove is provided inside the connecting rod 1, a moving plate 15 is slidably connected inside the rectangular groove, a plurality of springs 14 are installed on one side of the moving plate 15, the moving plate 15 extends out of the connecting rod 1 and is fixedly connected to a locking block 16, a plurality of locking grooves 17 are provided on the telescopic rod 11, and a lifting assembly extending out of the connecting rod 1 is installed on the side of the moving plate 15 close to the spring 14.

[0023] In the initial state, the two telescopic rods 11 are close to each other, so that the volume of the whole device becomes small and convenient for storage. When in use, the whole device is carried and moved to the elevator lobby, and then the whole device is placed at the door and the lifting assembly is driven away from the connecting rod 1, so that the lifting assembly overcomes the resilience of the spring 14 and drives the moving plate 15 to move toward the lifting assembly, so that the moving plate 15 drives the locking block 16 to move, and then the cross plate 12 and the vertical plate 13 abut against the two side walls of the elevator entrance when the telescopic rods 11 are driven away from each other, and then the lifting assembly is pulled, so that the resilience of the spring 14 drives the locking block 16 to move toward the locking groove 17, and then the locking groove 17 is inserted to lock the telescopic rod 11. In this way, the connecting rod 1, the telescopic rod 11, the cross plate 12 and the vertical plate 13 can be stably fixed at the elevator door, and then the safety rope can be hung on the outside of the connecting rod 1 to fix the safety rope, so that the maintenance personnel can safely enter the elevator shaft under the action of the safety rope, which is convenient for the maintenance personnel to enter the elevator shaft for maintenance and inspection.

[0024] The utility model can facilitate the adjustment of the telescopic rod 11 through the arrangement of the spring 14 and the locking block 16, thereby improving the efficiency of installing the fixing device, and can shrink the telescopic rod 11 for easy carrying.

[0025] Embodiment 2: Based on Embodiment 1, a further improvement is made, wherein the lifting assembly comprises a connecting column 20 fixedly connected to the moving plate 15, the connecting column 20 is fixedly connected to a pull ring 21, the lower end of the pull ring 21 is fixedly connected to two abutment plates 22 matching the connecting rod 1, and the abutment plates 22 are installed with anti-wear parts;

[0026] When installing the safety rope, the lock buckle of the safety rope is passed through the pull ring 21 and the connecting rod 1. In this way, when the safety rope is subjected to force under the weight of the maintenance personnel, the pull ring 21 has a tendency to move toward the connecting rod 1, thereby preventing the locking block 16 from disengaging from the locking groove 17. At the same time, the hanging position of the safety rope can also be fixed, preventing the lock buckle of the safety rope from sliding on the outside of the connecting rod 1 when the maintenance personnel moves in the elevator shaft, causing the length and position of the safety rope to change, thereby preventing the position of the maintenance personnel from changing.

[0027] The anti-wear part includes a smooth arc plate 23, two abutment plates 22 extending away from the pull ring 21, step grooves 24 are provided inside the two abutment plates 22, and slide bars 25 are slidably connected inside the two step grooves 24, and the smooth arc plate 23 is installed on one side of the two slide bars 25;

[0028] When installing the fixing device, the sliding slide rod 25 drives the smooth arc plate 23 to extend and abut against the connection between the elevator entrance and the elevator shaft. Since the safety rope has a downward movement force under the action of the maintenance personnel's own weight, the position of the smooth arc plate 23 is fixed. In this way, the expansion and contraction of the safety rope can act on the surface of the smooth arc plate 23, thereby increasing the service life of the safety rope and avoiding the vertical right-angle friction of the rope at the connection between the elevator entrance and the elevator shaft.

[0029] A fixing hole is provided on one side of the two telescopic rods 11 away from each other; the fixing hole can limit the telescopic rod 11 through the locking block 16 when the telescopic rod 11 is retracted.

[0030] The two telescopic rods 11 are rectangular in shape, and the connecting rod 1 is circular in shape; the rectangular shape facilitates parallel contact with the ground to prevent the telescopic rods 11 from being offset, while the circular shape of the connecting rod 1 facilitates the locking connection of the safety rope.

[0031] A rectangular plate 26 is fixedly connected to one side of the connecting rod 1 away from each other, and the rectangular plate 26 is slidably connected to the telescopic rod 11; the rectangular plate 26 can slide inside the telescopic rod 11 but cannot rotate, thereby preventing the telescopic rod 11 from rotating.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A fixing device for elevator maintenance, comprising a connecting rod, Features: The left and right sides of the connecting rod are symmetrically slidably connected with telescopic rods, and the two telescopic rods are fixedly connected with a horizontal plate and a vertical plate on the side away from each other, and a locking assembly is installed between the connecting rod and the telescopic rod; The locking assembly includes a plurality of springs, a rectangular groove is provided inside the connecting rod, a moving plate is slidably connected inside the rectangular groove, a plurality of the springs are installed on one side of the moving plate, the moving plate extends out of the connecting rod and is fixedly connected to a locking block, the telescopic rod is provided with a plurality of locking grooves, and a lifting assembly extending out of the connecting rod is installed on the side of the moving plate close to the spring.

2. An elevator maintenance fixing device according to claim 1, Features: The lifting assembly includes a connecting column fixedly connected to the moving plate, the connecting column is fixedly connected to a pull ring, the lower end of the pull ring is fixedly connected to two abutment plates matching the connecting rod, and the abutment plates are installed with anti-wear parts.

3. An elevator maintenance fixing device according to claim 2, Features: The anti-wear part includes a smooth arc plate, the two abutment plates extend to a side away from the pull ring, step grooves are provided inside the two abutment plates, sliding rods are slidably connected inside the two step grooves, and the smooth arc plate is installed on one side of the two sliding rods.

4. The elevator maintenance fixing device according to claim 1, Features: A fixing hole is provided on one side of the two telescopic rods away from each other.

5. The fixing device for elevator maintenance according to claim 1, Features: The two telescopic rods are rectangular in shape, and the connecting rod is circular in shape.

6. The fixing device for elevator maintenance according to claim 1, Features: A rectangular plate is fixedly connected to one side of the connecting rods away from each other, and the rectangular plate is slidably connected to the telescopic rod.

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