Vehicle-mounted lifting and loading device

By using a transmission structure where a drive motor drives a support gear and a rack to mesh, the problem of excessive cylinder length and high friction caused by the large span of the cable well guard scissor lift structure is solved. This enables convenient loading of the trolley, reduces costs, and avoids damage to the cylinder push rod.

CN224493609UActive Publication Date: 2026-07-14ZHEJIANG XING YAN ELECTRIC EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XING YAN ELECTRIC EQUIP
Filing Date
2025-09-10
Publication Date
2026-07-14

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    Figure CN224493609U_ABST
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Abstract

The utility model discloses a vehicle -mounted lifting load device, including walking trolley and scissor lifting mechanism still include: L shape mounting panel, it includes two pieces of symmetrical setting in the bottom of walking trolley, support gear, it includes a plurality of and rotation setting on L shape mounting panel, wherein two gear shafts of gear are through L shape mounting panel and are provided with a group of pulley, synchronous belt, it is with a group of pulley transmission connection above, drive motor, it has self -locking function, it is set up in the bottom of walking trolley and is fixed or transmission connection with one gear shaft of gear with pulley, mounting frame, it is located scissor lifting mechanism top, U -shaped frame, it includes two symmetrical settings in the top of mounting frame, and the toothed rack that is equipped with the meshing of support gear is established in the opening one side side wall, drive motor drive two support gear with pulley rotation, and drive scissor lifting mechanism translation through rack drive, in the translation process, two support gear with pulley at least one meshing with rack.
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Description

Technical Field

[0001] This utility model relates to a lifting and lowering device, and more particularly to a vehicle-mounted lifting and lowering device. Background Technology

[0002] The cable well guard is a multi-functional vehicle that can not only move but is also equipped with ventilation and water pumping devices, and is generally used for underground operations.

[0003] Existing cable well guards typically need to be transported to the work site and then walk to the shaft or other locations on their own. Due to their numerous internal components, heavy weight, and inconvenient loading, our company has integrated the scissor lift mechanism into the bottom of the vehicle body. When loading, the trolley is raised, and then the trolley body is pushed into the truck bed via a cylinder. After all four wheels are placed on the truck floor, the scissor lift mechanism is retracted upwards and then hidden under the trolley.

[0004] However, during the manufacturing process, we found that because the scissor mechanism and the trolley have a large horizontal span, using cylinders for pushing and retracting would result in excessively long cylinders. This would not only be costly, but also cause excessive internal friction of the cylinder push rod due to radial load under the gravity of the scissor structure, and even lead to the push rod being bent. Utility Model Content

[0005] In view of the problems mentioned in the background art, the technical problem to be solved by this utility model is to provide a vehicle-mounted lifting and lowering device.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] The vehicle-mounted lifting and lowering device includes a traveling trolley and a scissor lift mechanism, and also includes:

[0008] The L-shaped mounting plate consists of two pieces symmetrically arranged on the bottom of the traveling trolley.

[0009] Support gears, comprising several and rotatably mounted on an L-shaped mounting plate, wherein the gear shafts of two of them pass through the L-shaped mounting plate and are provided with a set of pulleys;

[0010] A synchronous belt, which is connected to the aforementioned set of pulleys for transmission;

[0011] The drive motor, which has a self-locking function, is located at the bottom of the traveling trolley and is fixed or connected to one of the gear shafts with pulleys;

[0012] The mounting bracket is located on top of the scissor lift mechanism;

[0013] The U-shaped frame includes two symmetrically arranged on the top of the mounting frame, and a rack that meshes with the support gear is provided on the side wall of the opening side;

[0014] The drive motor drives two support gears with pulleys to rotate, and drives the scissor lift mechanism to move horizontally through rack and pinion transmission. During the horizontal movement, at least one of the two support gears with pulleys meshes with the rack.

[0015] Preferably, the scissor lift mechanism includes:

[0016] The base frame has strip-shaped holes on its side walls;

[0017] The folding frame includes a first frame and a second frame that are rotatably connected to form an X shape. The top of the first frame and the bottom of the second frame are rotatably connected to a base frame and a mounting frame, respectively.

[0018] The guide wheels include two sets, which are respectively set at the bottom of the first frame and the top of the second frame. The guide wheels on the first frame abut against the base frame, and the guide wheels on the second frame abut against the mounting frame. The axle of the guide wheels on the first frame extends into the strip hole to limit the stroke.

[0019] The drive cylinder is hinged at both ends to the first frame and the second frame, respectively.

[0020] Preferably, the traveling trolley includes a carriage with two sets of wheels on both sides. The carriage has a door for opening and closing, and the interior of the carriage is equipped with a ventilation device, a water pumping device, and a drive device. The drive device drives one set of wheels to move through a chain and a sprocket.

[0021] Preferably, the carriage has a rectangular structure with baffles on three sides at the bottom. The axles of the traveling wheels are rotated at the baffles. The bottom of the carriage has an opening through which a chain extends and is connected to the sprocket on the axle.

[0022] Compared with the prior art, the present invention has the following advantages: In this application, the drive motor drives two sets of support gears to rotate, and the transmission is achieved through the meshing structure of the two sets of support gears and the rack. The scissor lift mechanism unfolds to lift the traveling trolley. After it is lifted into place, the support gears and the rack work together to drive the traveling trolley to slide out. After the traveling trolley slides out and is supported in the truck, the scissor lift mechanism retracts. After it retracts into place, the support gears and the rack work together again to drive the scissor lift mechanism to move to the side of the traveling trolley, thereby realizing the retraction of the scissor lift mechanism. In this process, the traveling trolley is loaded. Attached Figure Description

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 This is a perspective view of the present application;

[0025] Figure 2 This is a perspective view of the present application;

[0026] Figure 3 Exploded view of the mounting bracket area;

[0027] Figure 4 This is a side view of this application;

[0028] Figure 5 This is a perspective view of the present application;

[0029] In the diagram: 10. Traveling trolley; 101. Traveling wheel; 20. Scissor lift mechanism; 201. Mounting frame; 2010. U-shaped frame; 2011. Rack; 202. Base frame; 2021. Strip hole; 203. Second frame; 204. First frame; 205. Drive cylinder; 206. Guide wheel; 2071. Drive motor; 2072. L-shaped mounting plate; 2073. Support gear; 2074. Pulley; 2075. Synchronous belt; 30. Ventilation device; 40. Water pumping device; 50. Drive device; 501. Chain. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0032] This embodiment mainly describes the title of the vehicle-mounted lifting cargo device, as follows:

[0033] like Figure 1-5 As shown, the vehicle-mounted lifting and lowering device includes a traveling trolley 10 and a scissor lift mechanism 20, and also includes:

[0034] L-shaped mounting plate 2072, which includes two pieces symmetrically arranged at the bottom of the traveling trolley 10;

[0035] Support gears 2073 include several and are rotatably mounted on L-shaped mounting plate 2072, wherein the gear shafts of two of them pass through L-shaped mounting plate 2072 and are provided with a set of pulleys 2074;

[0036] Synchronous belt 2075 is connected to the aforementioned set of pulleys 2074 for transmission.

[0037] The drive motor 2071 has a self-locking function and is located at the bottom of the traveling trolley 10 and is fixed or connected to one of the gear shafts with pulleys 2074.

[0038] Mounting bracket 201 is located on top of scissor lift mechanism 20;

[0039] The U-shaped frame 2010 includes two symmetrically arranged on the top of the mounting frame 201, and a rack 2011 that meshes with the support gear 2073 is provided on the side wall of the opening side.

[0040] The drive motor 2071 drives two support gears 2073 with pulleys 2074 to rotate, and drives the scissor lift mechanism 20 to translate through the rack 2011. During the translation process, at least one of the two support gears 2073 with pulleys 2074 meshes with the rack 2011. In this scheme, the drive motor 2071 drives two sets of support gears 2073 to rotate, and transmits power through the meshing structure of the two sets of support gears 2073 and rack 2011. The scissor lift mechanism 20 unfolds to lift the traveling trolley 10. After it is lifted into place, the support gears 2073 and rack 2011 work together to drive the traveling trolley 10 to slide out. After the traveling trolley 10 slides out and is supported in the truck, the scissor lift mechanism 20 retracts. After it retracts into place, the support gears 2073 and rack 2011 work together to drive the scissor lift mechanism 20 to move to one side of the traveling trolley 10, thereby realizing the retraction of the scissor lift mechanism 20. In this process, the traveling trolley 10 is loaded.

[0041] Preferably, the scissor lift mechanism 20 includes:

[0042] The base frame 202 has strip holes 2021 on its side wall;

[0043] The folding frame includes a first frame 204 and a second frame 203 that are rotatably connected and form an X shape. The top of the first frame 204 and the bottom of the second frame 203 are rotatably connected to the base frame 202 and the mounting frame 201, respectively.

[0044] The guide wheel 206 includes two sets, which are respectively disposed at the bottom of the first frame 204 and the top of the second frame 203. The guide wheel 206 on the first frame 204 abuts against the base frame 202, and the guide wheel 206 on the second frame 203 abuts against the mounting frame 201. The axle of the guide wheel 206 on the first frame 204 extends into the strip hole 2021 to limit the stroke.

[0045] The drive cylinder 205 is hinged at both ends to the first frame 204 and the second frame 203, respectively. This design is a specific structure of the scissor lift mechanism.

[0046] Preferably, the traveling trolley 10 includes a carriage with two sets of wheels 101 on both sides. The carriage has a door for opening and closing, and its interior includes a ventilation system 30, a water pumping system 40, and a drive unit 50. The drive unit 50 drives one set of wheels 101 via a chain 501 and a sprocket. In this design, the drive unit 50 is an electric motor, and the ventilation system 30 and water pumping system 40 are used for ventilation and drainage in the well, respectively.

[0047] Preferably, the carriage has a rectangular structure with baffles on three sides of its bottom. The axles of the traveling wheels 101 are rotatably mounted on the baffles. The bottom of the carriage has an opening through which a chain 501 extends and is connected to the sprocket on the axle. The opening faces left, and when the traveling trolley 10 moves to the right, the lifting scissor mechanism slides out from the opening formed on the left side of the baffle.

[0048] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A vehicle-mounted lifting and lowering device, comprising a traveling trolley and a scissor lift mechanism, characterized in that, Also includes: The L-shaped mounting plate consists of two pieces symmetrically arranged on the bottom of the traveling trolley. Support gears, comprising several and rotatably mounted on an L-shaped mounting plate, wherein the gear shafts of two of them pass through the L-shaped mounting plate and are provided with a set of pulleys; A synchronous belt, which is connected to the aforementioned set of pulleys for transmission; The drive motor, which has a self-locking function, is located at the bottom of the traveling trolley and is fixed or connected to one of the gear shafts with pulleys; The mounting bracket is located on top of the scissor lift mechanism; The U-shaped frame includes two symmetrically arranged on the top of the mounting frame, and a rack that meshes with the support gear is provided on the side wall of the opening side; The drive motor drives two support gears with pulleys to rotate, and drives the scissor lift mechanism to move horizontally through rack and pinion transmission. During the horizontal movement, at least one of the two support gears with pulleys meshes with the rack.

2. The vehicle-mounted lifting and lowering cargo device according to claim 1, characterized in that, The scissor lift mechanism includes: The base frame has strip-shaped holes on its side walls; The folding frame includes a first frame and a second frame that are rotatably connected to form an X shape. The top of the first frame and the bottom of the second frame are rotatably connected to a base frame and a mounting frame, respectively. The guide wheels include two sets, which are respectively set at the bottom of the first frame and the top of the second frame. The guide wheels on the first frame abut against the base frame, and the guide wheels on the second frame abut against the mounting frame. The axle of the guide wheels on the first frame extends into the strip hole to limit the stroke. The drive cylinder is hinged at both ends to the first frame and the second frame, respectively.

3. The vehicle-mounted lifting and lowering cargo device according to claim 1, characterized in that, The traveling trolley includes a carriage with two sets of wheels on both sides. The carriage has a door for opening and closing, and the interior is equipped with a ventilation system, a water pumping system, and a drive system. The drive system drives one set of wheels to move via a chain and sprocket.

4. The vehicle-mounted lifting and lowering cargo device according to claim 3, characterized in that, The carriage has a rectangular structure with baffles on three sides at the bottom. The axles of the traveling wheels are rotated at the baffles. There is an opening at the bottom of the carriage, through which a chain extends and is connected to the sprockets on the axles.