Retractable vehicle for elevator maintenance

Abstract

The retractable trolley comprises a trolley body and a shear type lifting platform, a retractable part is arranged at the front end of the trolley body, a movable handle is arranged at the upper end of the trolley body, universal brake wheels are arranged at the bottoms of the trolley body and the retractable part, a sliding groove is formed in the front end face of the trolley body, and the retractable part comprises a bottom plate, side plates and a top plate. The bottom plate is inserted into the sliding groove to be slidably connected with the cart body, and a locking bolt is arranged on the side end face of the cart body close to the sliding groove. According to the retractable trolley, the retractable part structure is connected in a sliding mode, so that the retractable trolley can be used as a shear type lifting platform in the unfolded state and can be converted into a flat plate trolley in the contracted state to be used for transporting tool boxes, and the multifunctionality and portability of the retractable trolley are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator maintenance, in particular to a retractable vehicle for elevator maintenance. Background Art

[0002] During the elevator maintenance process, a retractable trolley is required. The main function of the retractable trolley is to lift and store tools to assist the staff in maintenance work. When the equipment inside the elevator car fails, the retractable trolley is pushed into the car, and then the lifting platform above the retractable trolley is raised. The staff steps on the lifting platform to inspect and repair the equipment on the top of the car.

[0003] However, the existing retractable carts are too large and inconvenient to carry, resulting in elevator inspectors being able to carry them only in trucks. Most maintenance personnel drive family cars or two-wheeled electric vehicles when inspecting elevators. Using trucks to dispatch and follow the elevator inspection team will increase time and cost, especially in busy urban traffic or dispersed locations. The moving speed and flexibility of trucks are not as good as small vehicles or electric vehicles, which may lead to a decrease in overall work efficiency and an increase in inspection costs. Therefore, a retractable cart for elevator maintenance is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a retractable trolley for elevator maintenance, which has the advantage of being easy to carry with a storage box, and solves the problem in the prior art that the retractable trolley for elevator maintenance occupies too large a volume and is inconvenient to carry, affecting elevator detection efficiency and increasing detection costs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a retractable vehicle for elevator maintenance, comprising a vehicle body and a scissor lift platform, a telescopic portion being provided at the front end of the vehicle body, and a movable handle being provided at the upper end of the vehicle body;

[0006] The bottom of the vehicle body and the telescopic part are provided with universal brake wheels, the front end surface of the vehicle body is provided with a slide groove, the telescopic part includes a bottom plate, a side plate and a top plate, the bottom plate is inserted into the slide groove and is slidably connected to the trolley body, and a locking bolt is provided on the side end surface of the vehicle body near the slide groove.

[0007] As a preferred embodiment of the elevator maintenance retractable and unretractable vehicle of the utility model, the front end surface of the side plate is provided with a pull-out groove.

[0008] As a preferred embodiment of the elevator maintenance retractable vehicle of the utility model, a support plate is provided on the lower end surface of the top plate, and the support plate is rotatably connected to the top plate.

[0009] As a preferred embodiment of the elevator maintenance retractable and unretractable vehicle of the utility model, the upper end surface of the bottom plate is provided with a slot corresponding to the support plate.

[0010] As a preferred embodiment of the elevator maintenance retractable vehicle of the utility model, magnets are arranged on the side of the support plate, and the telescopic part is made of steel plate.

[0011] As a preferred embodiment of the elevator maintenance retractable vehicle of the utility model, a rotating shaft is arranged on the side of the movable handle, a lug plate is arranged on the top of the vehicle body, and the vehicle body is rotatably connected through the rotating shaft and the lug plate.

[0012] As a preferred embodiment of the elevator maintenance retractable vehicle of the utility model, a latch elastically connected by a spring is arranged on the side of the movable handle, a positioning pin hole is arranged on the side of the ear plate, and the handle and the ear plate are fixed by the latch and the positioning pin hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model adopts a slidingly connected telescopic part structure, so that the retractable vehicle can be used as a scissor lift in the unfolded state, and can be transformed into a flatbed cart in the retracted state for transporting tool boxes, which greatly improves the versatility and portability of the equipment.

[0015] 2. The utility model adopts the design of a rotatably connected support plate, which is convenient for workers to climb onto the lifting platform and also enhances the stability of the equipment during use. The support plate can be fixed by a card slot to prevent slipping when subjected to force. The support plate has a built-in magnet, which can be adsorbed on the inner wall of the telescopic part when not in use, effectively reducing the storage space.

[0016] 3. The utility model uses a rotating handle and a spring-elastically connected pin design to adjust the angle of the handle and fix it as needed, ensuring that it is more labor-saving and convenient when pushing, lifting or carrying the equipment. It not only reduces the occupied space, but the handle can also be transformed into a carrying handle when needed, which facilitates the movement and placement of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the telescopic part and the movable handle of the utility model in the unfolded state from the first perspective;

[0018] Figure 2 It is a structural schematic diagram of the telescopic part and the movable handle of the utility model in the unfolded state from a second viewing angle;

[0019] Figure 3 It is a schematic diagram of the structure of the telescopic part and the movable handle of the utility model in the retracted state;

[0020] Figure 4 It is an exploded view of the utility model;

[0021] Figure 5 For the utility model Figure 4Enlarged view of point A in the middle;

[0022] Figure 6 It is a schematic diagram of the telescopic part structure of the utility model.

[0023] In the figure: 1. vehicle body; 101. universal brake wheel; 102. locking bolt; 103. ear plate; 104. pin hole; 105. rotating shaft; 106. latch; 107. slide groove; 2. scissor lift; 3. telescopic part; 301. top plate; 302. side plate; 303. bottom plate; 304. support plate; 305. pull-out groove; 306. card slot; 307. magnet; 4. movable handle. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 6 , a retractable vehicle for elevator maintenance, comprising a vehicle body 1 and a scissor lift 2, a telescopic portion 3 being provided at the front end of the vehicle body 1, and a movable handle 4 being provided at the upper end of the vehicle body 1;

[0025] Universal brake wheels 101 are provided at the bottom of the vehicle body 1 and the telescopic part 3, a slide groove 107 is provided on the front end surface of the vehicle body 1, the telescopic part 3 includes a bottom plate 303, a side plate 302 and a top plate 301, the bottom plate 303 is inserted into the slide groove 107 and is slidably connected with the trolley body, and a locking bolt 102 is provided on the side end surface of the vehicle body 1 near the slide groove 107.

[0026] Furthermore, a drawing groove 305 is provided on the front end surface of the side plate 302 .

[0027] By buckling the inner end surface of the pull-out groove 305, the telescopic part 3 can be conveniently pulled outward, thereby making it convenient to unfold the retractable vehicle and expose the scissor lift 2, thereby facilitating the lifting operation. When not in use, the telescopic part 3 is retracted into the vehicle body 1, and the vehicle body 1 becomes a flatbed cart, which can transport the tool box, and cooperates with the movable handle 4 to make the vehicle body 1 become a suitcase-type structure, which is convenient for equipment transportation.

[0028] Furthermore, a support plate 304 is provided on the lower end surface of the top plate 301 , and the support plate 304 is rotatably connected to the top plate 301 .

[0029] The top is supported by the support plate 304 , so that the staff can step on the top plate 301 , thereby conveniently climbing onto the scissor lift 2 , avoiding the scissor lift 2 from being raised too high and difficult to climb, and at the same time improving the stability of the equipment.

[0030] Furthermore, a slot 306 corresponding to the support plate 304 is provided on the upper end surface of the bottom plate 303 .

[0031] By inserting the support plate 304 into the slot 306 , the support plate 304 is prevented from tilting and slipping when under pressure, thereby improving the stability of the support.

[0032] Furthermore, a magnet 307 is disposed on the side of the support plate 304, and the telescopic portion 3 is made of a steel plate.

[0033] When the support plate 304 is not in use, it can be adsorbed on the bottom of the top by the magnet 307, so that the telescopic part 3 can be sleeved on the outside of the scissor lift 2, reducing the equipment storage space.

[0034] Furthermore, a rotating shaft 105 is provided on the side of the movable handle 4, and a lug plate 103 is provided on the top of the vehicle body 1, and the vehicle body 1 is rotatably connected through the rotating shaft 105 and the lug plate 103.

[0035] The connected movable handle 4 is rotated so that when the movable handle 4 is not in use, it can be turned clockwise to fit with the upper end surface of the box body, thereby reducing the occupied space.

[0036] Furthermore, a latch 106 elastically connected by a spring is provided on the side of the movable handle 4 , and a positioning pin hole 104 is provided on the side of the ear plate 103 , and the handle and the ear plate 103 are fixed by the latch 106 and the positioning pin hole 104 .

[0037] The handle can be fixed to a specified angle by the cooperation of the latch 106 and the positioning pin hole 104. When the vehicle body 1 needs to be pushed, the movable handle 4 can be erected to facilitate pushing the vehicle body 1. After use, the telescopic portion 3 is retracted into the vehicle body 1, the handle is flipped forward and fixed, and the movable handle 4 becomes a carrying handle at the front end of the vehicle body 1, which is convenient for lifting the entire device and placing it on the vehicle, or for carrying the device, further improving the convenience of the device.

[0038] When using the device, first, unfasten the locking bolt 102, smoothly pull out the telescopic part 3 along the pull-out groove 305, ensure that the bottom plate 303 and the side plate 302 slide smoothly along the slide groove 107 and are tightly combined with the trolley body, tighten the locking bolt 102 after the telescopic part 3 reaches the maximum stroke, unfold the scissor lift 2 and place it in the appropriate position, and ensure that the support plate 304 has been rotated out from the lower end surface of the top plate 301. If you need to stand, rotate and unfold the support plate 304 and ensure that it is firmly inserted into the card slot 306 to provide a stable standing platform. According to the operating instructions of the scissor lift 2, raise the lift to the required height for elevator operation. Maintenance work, then, step on the telescopic part 3 to climb onto the scissor lift 2, and perform maintenance work on the elevator. After completing the work, smoothly lower the lift to the lowest position, ensure that all parts are reset, retract the support plate 304 and use the magnet 307 to fix it to the lower end of the top plate 301, then slowly push the telescopic part 3 into the car body 1 along the slide groove 107, and fix it with the locking bolt 102, pull the pin 106, and flip the handle clockwise so that it fits on the upper end surface of the car body 1 and is fixed by the spring-connected pin 106. At this time, the handle becomes a carrying handle, which is convenient for lifting or carrying the entire equipment to a car or two-wheeled electric vehicle for transportation.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A retractable and unretractable vehicle for elevator maintenance, comprising a vehicle body (1) and a scissor lift platform (2), characterized in that: The front end of the vehicle body (1) is provided with a telescopic portion (3), and the upper end of the vehicle body (1) is provided with a movable handle (4); The bottom of the vehicle body (1) and the telescopic part (3) are provided with a universal brake wheel (101); the front end surface of the vehicle body (1) is provided with a slide groove (107); the telescopic part (3) comprises a bottom plate (303), a side plate (302) and a top plate (301); the bottom plate (303) is inserted into the slide groove (107) and is slidably connected with the trolley body; a locking bolt (102) is provided on the side end surface of the vehicle body (1) near the slide groove (107).

2. The elevator maintenance retractable vehicle according to claim 1, characterized in that: The front end surface of the side plate (302) is provided with a drawing groove (305).

3. The elevator maintenance retractable vehicle according to claim 1, characterized in that: A support plate (304) is provided on the lower end surface of the top plate (301), and the support plate (304) is rotatably connected to the top plate (301).

4. The elevator maintenance retractable vehicle according to claim 3, characterized in that: The upper end surface of the bottom plate (303) is provided with a slot (306) corresponding to the support plate (304).

5. The elevator maintenance retractable vehicle according to claim 4, characterized in that: A magnet (307) is provided on the side of the support plate (304), and the telescopic portion (3) is made of a steel plate.

6. The elevator maintenance retractable vehicle according to claim 1, characterized in that: A rotating shaft (105) is arranged on the side of the movable handle (4), and a lug plate (103) is arranged on the top of the vehicle body (1), and the vehicle body (1) is rotatably connected via the rotating shaft (105) and the lug plate (103).

7. The elevator maintenance retractable vehicle according to claim 6, characterized in that: A latch (106) elastically connected via a spring is provided on the side of the movable handle (4), a positioning pin hole (104) is provided on the side of the ear plate (103), and the handle and the ear plate (103) are fixed via the latch (106) and the positioning pin hole (104).

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