Lifting trolley
By designing a support module and an adjustment module for the handcart, the problem of existing handcarts being unable to be raised and lowered was solved, enabling time-saving and labor-saving raising and lowering of the handcart, improving handling efficiency and reducing costs.
Patent Information
- Application Number
- CN202520133957.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing handcarts have limited functionality and cannot be raised or lowered, resulting in low handling efficiency and high costs.
A handcart comprising a support module and an adjustment module was designed. The support module achieves device displacement through casters and movable wheels, while the adjustment module achieves the lifting and lowering of the placement rack through a hydraulic mechanism. The lifting and lowering operation of the placement rack is achieved by the cooperation of a pump cylinder, a pressurizing piston, and a main cylinder.
It realizes the time-saving and labor-saving lifting function of the handcart, improves the handling efficiency, reduces the risk of damage to objects, and reduces costs.
Smart Images
Figure CN223837058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of handcart technology, and in particular to a height-adjustable handcart. Background Technology
[0002] Handcarts are an important tool in handling and loading / unloading operations. They are mechanisms for moving and transporting goods using manual labor, and can be used for stacking and loading / unloading cargo. Their main characteristics are small size, compact structure, and flexible operation, allowing them to operate in relatively small spaces and freeing up a significant amount of manpower. With social development, handcarts have become widely used. Their main functions are loading and unloading goods, stacking, and short-distance transport. Due to their maneuverability, handcarts can quickly move goods in confined spaces and can withstand relatively large lifting capacities, making them extremely valuable in areas with concentrated goods, such as company warehouses and docks.
[0003] However, the existing handcarts are too simple in function, usually only able to move goods, and the load plates are fixed and do not have lifting function. The existing lifting is achieved by manual handling or by special lifting equipment. Using manpower is time-consuming and labor-intensive, reducing work efficiency, while using special lifting equipment is often more expensive.
[0004] Therefore, it is necessary to provide a liftable handcart to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a height-adjustable handcart.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A height-adjustable handcart includes a support module and an adjustment module;
[0008] The support module includes a vertical rod, a bracket, casters, a support plate, and movable wheels;
[0009] The adjustment module includes a base, which is connected to the support plate by expansion bolts. A pump cylinder is fixedly installed on the upper side of the base. A pressurizing piston is provided inside the pump cylinder. The pressurizing piston is hinged to a handle. The other end of the handle is hinged to a handle bracket by a pin. The handle bracket is fixedly connected to the base. A safety release valve is fixedly installed on one side of the base.
[0010] The main cylinder is fixedly connected to the upper side of the base. The main cylinder is connected to the bracket via expansion bolts. The upper end of the main cylinder is fixedly connected to the main saddle. The two ends of the sliding roller one are movably connected to opposite sides of the main saddle. A chain is slidably connected to the sliding roller one. One end of the chain is fixedly connected to the bracket, and the other end of the chain is fixedly connected to the placement frame. A set of symmetrical lifting rings is fixedly connected to the lower side of the placement frame. A pair of symmetrical L-shaped plates are fixedly connected to the upper end of the placement frame. The two ends of the two sliding roller two are movably connected to the corresponding pair of L-shaped plates. A pair of symmetrical protrusions are fixedly connected to the lower side of the placement frame. The two ends of the two sliding roller three are movably connected to the corresponding pair of protrusions. The two sliding roller two and the two sliding roller three slide along the vertical rod.
[0011] Preferably, the support module includes the vertical rod, which is fixedly connected to the bracket.
[0012] Preferably, the bracket is fixedly connected to the support plate.
[0013] Preferably, the two ends of the support plate are respectively fixedly connected to symmetrical casters.
[0014] Preferably, the other two ends of the support plate are movably connected to the central shafts of the corresponding moving wheels.
[0015] Compared with related technologies, the beneficial effects of this utility model are:
[0016] 1. The support module enables the device to be displaced, saving time and effort in operation. The adjustment module allows the placement frame to move objects up or down, saving time and reducing damage to objects.
[0017] 2. This device can adjust the lifting and lowering of objects through the adjustment module, saving time, effort, and costs. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0019] Figure 2 This is a three-dimensional schematic diagram of the present invention.
[0020] Figure 3 This is a schematic diagram of the connection structure of some parts of this utility model.
[0021] In the picture:
[0022] 1: Support module; 11: Vertical rod; 12: Bracket; 13: Casters; 14: Support plate; 15: Movable wheel;
[0023] 2: Adjustment module, 21. Placement rack, 22. Hanging ring, 23. Protrusion, 24. Sliding roller three, 25. Base, 26. Pump cylinder, 27. Pressurizing piston, 28. Handle, 29. Safety release valve, 210. Main cylinder, 211. Chain, 212. Main saddle, 213. Sliding roller one, 214. Handle bracket, 215. L-shaped plate, 216. Sliding roller two. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] A height-adjustable handcart includes a support module 1 and an adjustment module 2;
[0026] The support module 1 includes a vertical rod 11, a bracket 12, a caster wheel 13, a support plate 14, and a movable wheel 15.
[0027] The adjustment module 2 includes a base 25, which is connected to the support plate 14 by expansion bolts. A pump cylinder 26 is fixedly installed on the upper side of the base 25. A pressure piston 27 is provided inside the pump cylinder 26. The pressure piston 27 is hinged to a handle 28. The other end of the handle 28 is hinged to a handle bracket 214 by a pin. The handle bracket 214 is fixedly connected to the base 25. A safety release valve 29 is fixedly installed on one side of the base 25.
[0028] The upper side of the base 25 is fixedly connected to the main cylinder 210, which is connected to the bracket 12 via expansion bolts. The upper end of the main cylinder 210 is fixedly connected to the main saddle 212. The two ends of the sliding roller 213 are movably connected to opposite sides of the main saddle 212. A chain 211 is slidably connected to the sliding roller 213. One end of the chain 211 is fixedly connected to the bracket 12, and the other end is fixedly connected to the placement frame 21. The lower side of the placement frame 21 is respectively fixed... A set of symmetrical lifting rings 22 are fixedly connected. A pair of symmetrical L-shaped plates 215 are fixedly connected to the upper end of the placement frame 21. The central shafts at both ends of two sliding rollers 216 are movably connected to the corresponding pair of L-shaped plates 215. A pair of symmetrical protrusions 23 are fixedly connected to the lower side of the placement frame 21. The central shafts at both ends of two sliding rollers 24 are movably connected to the corresponding pair of protrusions 23. The two sliding rollers 216 and the two sliding rollers 24 slide along the vertical rod 11.
[0029] The support module 1 includes the vertical rod 11, which is fixedly connected to the bracket 12.
[0030] The bracket 12 is fixedly connected to the support plate 14.
[0031] The two ends of the support plate 14 are respectively fixedly connected to the symmetrical casters 13.
[0032] The other two ends of the support plate 14 are respectively movably connected to the central shafts of the corresponding moving wheels 15.
[0033] The hydraulic mechanism, consisting of base 25, handle bracket 214, pump cylinder 26, pressurizing piston 27, handle 28, safety release valve 19 and main cylinder 210, works on the same principle as a traditional jack.
[0034] Working principle: First, push the device to move it to the desired position using the two casters 13 and the movable wheel 15. When it is necessary to lift the object on the rack 21, swing the handle 28 to one side. The handle 28 drives the pressure piston 27 upward. At this time, the main piston in the main cylinder 210 is at the bottom of the main cylinder 210, and the safety release valve 29 is closed. At this time, the hydraulic oil in the oil reservoir of the main cylinder 210 will enter the pump cylinder 26 through the internal inlet channel. Swing the handle 28 in the opposite direction, the handle 28 drives the pressure piston 27 downward. The check valve ball in the internal inlet channel will prevent the hydraulic oil in the pump cylinder 26 from returning to the oil reservoir of the main cylinder 210. Hydraulic oil in cylinder 26 enters main cylinder 210 through internal discharge channel, pushing the main piston in main cylinder 210 to move upward. The check valve ball in internal discharge channel prevents hydraulic oil in main cylinder 210 from returning to pump cylinder 26. The reciprocating swing handle 28 causes the main piston in main cylinder 210 to move upward continuously. The main piston in main cylinder 210 drives sliding roller 1 213 to move upward through main saddle 212. The chain 211 drives the placement rack 21 to move upward through sliding roller 1 213, so that the object on the placement rack 21 is lifted to the required height. At the same time, sliding roller 216 and sliding roller 3 24 can move along vertical rod 11 to play a positioning role and prevent the placement rack 21 from shifting.
[0035] When the object on the placement rack 21 needs to be moved down, the safety release valve 29 is rotated with a wrench to return the hydraulic oil in the pressurized main cylinder 210 back to the oil reservoir of the main cylinder 210 and release the pressure in the system, so that the main piston of the main cylinder 210 slowly descends, and finally the chain 211 drives the placement rack 21 to move down.
[0036] The hanging rings 22 on the placement rack 21 can be connected to ropes, etc., which also play a certain auxiliary role in raising and lowering the object.
[0037] Beneficial effects: The device can be displaced by the support module 1, which saves time and effort. The object can be moved up or down by the adjustment module 2, which saves time and reduces damage to the object.
[0038] 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. A height-adjustable handcart, characterized in that, The height-adjustable handcart includes: Support module (1), adjustment module (2); The support module (1) includes a vertical rod (11), a bracket (12), casters (13), a support plate (14), and a movable wheel (15); The adjustment module (2) includes a base (25), which is connected to the support plate (14) by expansion bolts. A pump cylinder (26) is fixedly installed on the upper side of the base (25). A pressurizing piston (27) is provided inside the pump cylinder (26). The pressurizing piston (27) is hinged to a handle (28). The other end of the handle (28) is hinged to a handle bracket (214) by a pin. The handle bracket (214) is fixedly connected to the base (25). A safety release valve (29) is fixedly installed on one side of the base (25). The upper side of the base (25) is fixedly connected to the main cylinder (210), which is connected to the bracket (12) by expansion bolts. The upper end of the main cylinder (210) is fixedly connected to the main saddle (212). The two ends of the sliding roller (213) are movably connected to the opposite side of the main saddle (212). A chain (211) is slidably connected to the sliding roller (213). One end of the chain (211) is fixedly connected to the bracket (12), and the other end of the chain (211) is fixedly connected to the placement frame (21). The lower side of the placement frame (21) A set of symmetrical hanging rings (22) are fixedly connected to each other. A pair of symmetrical L-shaped plates (215) are fixedly connected to the upper end of the placement frame (21). The central shafts at both ends of the two sliding rollers (216) are movably connected to the corresponding pair of L-shaped plates (215). A pair of symmetrical protrusions (23) are fixedly connected to the lower side of the placement frame (21). The central shafts at both ends of the two sliding rollers (24) are movably connected to the corresponding pair of protrusions (23). The two sliding rollers (216) and the two sliding rollers (24) slide along the vertical rod (11).
2. The height-adjustable handcart according to claim 1, characterized in that, The support module (1) includes the vertical rod (11), which is fixedly connected to the bracket (12).
3. The height-adjustable handcart according to claim 1, characterized in that, The bracket (12) is fixedly connected to the support plate (14).
4. The height-adjustable handcart according to claim 1, characterized in that, The two ends of the support plate (14) are respectively fixedly connected to the symmetrical casters (13).
5. The height-adjustable handcart according to claim 1, characterized in that, The other two ends of the support plate (14) are respectively movably connected to the central shafts of the corresponding moving wheels (15).