Elevator maintenance frame

Abstract

The utility model discloses an elevator maintenance frame which comprises a bottom plate, a fixing plate is fixedly arranged at the top of the bottom plate, an oil cylinder is fixedly installed at the top of the bottom plate, a connecting frame is fixedly arranged on a piston rod of the oil cylinder, a first sliding groove is formed in the inner side of the connecting frame, and a fixing rod is slidably connected into the first sliding groove. The top of the inner side of the connecting frame is rotationally connected with two symmetrically-arranged chain wheels, the chain wheels are provided with chains, one ends of the chains are fixedly connected with the top of the fixing plate, the ends, away from the fixing plate, of the chains are fixedly connected with fixing rods, and the fixing rods are fixedly connected with connecting rods. The end, away from the fixing rod, of the connecting rod is fixedly connected with a connecting plate, and a lifting platform is arranged on the connecting plate. According to the elevator maintenance frame, when the maintenance frame is not used or transported, the size can be reduced, when the maintenance frame is used, a worker stands on the platform, the platform can be lifted to a high position, and the elevator maintenance frame is simple in structure and can well meet the elevator maintenance requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator maintenance, and particularly relates to an elevator maintenance rack. Background Art

[0002] With the development of cities, the number of high-rise buildings has increased sharply, and the use of elevators has become more and more frequent. Elevator maintenance is very important for ensuring the normal operation of elevators. When performing elevator maintenance operations, maintenance personnel need to enter the elevator shaft or the car to work. The equipment to be repaired is often at a relatively high position, and maintenance personnel need to use a maintenance rack to approach the equipment to be repaired. However, most of the existing maintenance racks are fixed, cannot be lifted or lowered, are bulky, and cannot well meet the use needs of maintenance personnel. Content of the Utility Model

[0003] Aiming at the above deficiencies in the prior art, the utility model provides an elevator maintenance rack, the purpose of which is to solve the problems that most of the existing maintenance racks are fixed, cannot be lifted or lowered, are bulky, and cannot well meet the use needs of maintenance personnel.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0005] An elevator maintenance rack includes a bottom plate. A fixing plate is fixedly arranged on the top of the bottom plate. An oil cylinder is fixedly installed on the top of the bottom plate. A connecting frame is fixedly arranged on the piston rod of the oil cylinder. A first chute is arranged inside the connecting frame. A fixing rod is slidably connected inside the first chute. Two symmetrically arranged sprockets are rotatably connected to the top inside the connecting frame. A chain is arranged on the sprocket. One end of the chain is fixedly connected to the top of the fixing plate, and the end of the chain away from the fixing plate is fixedly connected to the fixing rod. A connecting rod is fixedly connected to the fixing rod. The end of the connecting rod away from the fixing rod is fixedly connected to a connecting plate, and a lifting platform is arranged on the connecting plate.

[0006] Further, the lifting platform includes a square tube fixedly connected to the connecting plate. A second chute is arranged at the end of the square tube away from the connecting plate. A motor is installed at the bottom inside the square tube. A lead screw is fixedly connected to the output shaft of the motor. A support block is threadedly connected to the lead screw, and a platform is fixedly connected to the support block.

[0007] Further, the support block is slidably connected to the second chute.

[0008] Further, a guiding block is fixedly arranged on the fixing plate. A third chute is arranged on the connecting frame. The guiding block is slidably connected to the third chute.

[0009] Further, self-locking universal wheels are fixedly arranged at the bottom of the bottom plate.

[0010] Further, a handle is provided on the connection frame.

[0011] The beneficial effects of the present utility model are as follows:

[0012] A lift maintenance rack of the present utility model can reduce its volume when not in use or during transportation. When in use, the staff stands on the platform, and the platform can be raised to a relatively high position. The device has a simple structure and can well meet the lift maintenance requirements. Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a three-dimensional structural schematic diagram of the present utility model.

[0015] List of Reference Numerals for the Drawings:

[0016] 1, bottom plate; 2, fixed plate; 3, oil cylinder; 4, connection frame; 5, first chute; 6, fixed rod; 7, sprocket; 8, chain; 9, connecting rod; 10, connecting plate; 11, square tube; 12, second chute; 13, motor; 14, lead screw; 15, support block; 16, platform; 17, guide block; 18, third chute; 19, self-locking universal wheel; 20, handle. Detailed Embodiments

[0017] The following further illustrates the detailed embodiments of the present utility model with reference to the drawings. The same components are denoted by the same reference numerals.

[0018] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0019] To make the content of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

[0020] As Figures 1 to 2 shown, a lift maintenance rack includes a bottom plate 1. Self-locking universal wheels 19 are fixedly provided at the bottom of the bottom plate 1, and through the self-locking universal wheels 19, it is convenient to move and fix the entire maintenance rack.

[0021] A fixed plate 2 is fixedly provided at the top of the bottom plate 1. An oil cylinder 3 is fixedly installed at the top of the bottom plate 1. A connection frame 4 is fixedly provided on the piston rod of the oil cylinder 3. A handle 20 is provided on the connection frame 4. A guide block 17 is fixedly provided on the fixed plate 2. A third chute 18 is formed on the connection frame 4. The guide block 17 is slidably connected to the third chute 18, and the oil cylinder 3 can drive the connection frame 4 to move up and down.

[0022] A first sliding groove 5 is provided inside the connecting frame 4. A fixing rod 6 is slidably connected inside the first sliding groove 5. Two symmetrically arranged sprockets 7 are rotatably connected to the top inside the connecting frame 4. A chain 8 is provided on the sprocket 7. One end of the chain 8 is fixedly connected to the top of the fixing plate 2, and the end of the chain 8 away from the fixing plate 2 is fixedly connected to the fixing rod 6.

[0023] The oil cylinder 3 drives the connecting frame 4 to move upward. The connecting frame 4 drives the sprocket 7 to move upward. The sprocket 7 drives the fixing rod 6 to move upward through the chain 8.

[0024] A connecting rod 9 is fixedly connected to the fixing rod 6. One end of the connecting rod 9 away from the fixing rod 6 is fixedly connected to a connecting plate 10. The fixing rod 6 drives the connecting rod 9 and the connecting plate 10 to move upward.

[0025] A lifting platform is provided on the connecting plate 10. The lifting platform includes a square tube 11 fixedly connected to the connecting plate 10. A second sliding groove 12 is provided at one end of the square tube 11 away from the connecting plate 10. A motor 13 is installed at the bottom inside the square tube 11. A lead screw 14 is fixedly connected to the output shaft of the motor 13. A support block 15 is threadedly connected to the lead screw 14. The support block 15 is slidably connected to the second sliding groove 12. A platform 16 is fixedly connected to the support block 15.

[0026] The maintenance personnel stand on the platform 16. The connecting plate 10 drives the lifting platform to greatly adjust the height of the platform 16. The motor 13 drives the lead screw 14 to rotate. The lead screw 14 drives the support block 15 and the platform 16 to move up and down to slightly adjust the height of the platform 16 for the convenience of the maintenance personnel to operate.

[0027] The above are only the preferred embodiments of the utility model patent, and are not intended to limit the utility model patent. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the utility model patent shall be included within the protection scope of the utility model patent.

Claims

1. An elevator maintenance rack, characterized in that, It includes a bottom plate (1), on the top of which a fixed plate (2) is fixedly provided. An oil cylinder (3) is fixedly installed on the top of the bottom plate (1). A connecting frame (4) is fixedly provided on the piston rod of the oil cylinder (3). A first sliding groove (5) is formed inside the connecting frame (4), and a fixed rod (6) is slidably connected in the first sliding groove (5). Two symmetrically arranged sprockets (7) are rotatably connected to the inner top of the connecting frame (4). A chain (8) is provided on the sprocket (7). One end of the chain (8) is fixedly connected to the top of the fixed plate (2), and the end of the chain (8) far from the fixed plate (2) is fixedly connected to the fixed rod (6). A connecting rod (9) is fixedly connected to the fixed rod (6), and a connecting plate (10) is fixedly connected to the end of the connecting rod (9) far from the fixed rod (6). A lifting platform is provided on the connecting plate (10).

2. The elevator maintenance rack according to claim 1, wherein: The lifting platform includes a square tube (11) fixedly connected to the connecting plate (10). A second sliding groove (12) is formed at the end of the square tube (11) far from the connecting plate (10). A motor (13) is installed at the inner bottom of the square tube (11). A lead screw (14) is fixedly connected to the output shaft of the motor (13). A support block (15) is threadedly connected to the lead screw (14), and a platform (16) is fixedly connected to the support block (15).

3. The elevator maintenance rack according to claim 2, characterized in that: The support block (15) is slidably connected to the second sliding groove (12).

4. A lift maintenance rack according to claim 1, characterized in that: A guide block (17) is fixedly provided on the fixed plate (2). A third sliding groove (18) is formed on the connecting frame (4), and the guide block (17) is slidably connected to the third sliding groove (18).

5. The elevator maintenance rack according to claim 1, characterized in that: Self-locking universal wheels (19) are fixedly provided at the bottom of the bottom plate (1).

6. The elevator maintenance rack according to claim 1, characterized in that: A handle (20) is provided on the connecting frame (4).

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