A small trolley for large hoisting pulleys

Abstract

The utility model relates to workshop equipment transportation technical field especially, it relates to a kind of trolley for large hoist pulley, the trolley for large hoist pulley includes: rectangular frame, universal wheel is symmetrically fixedly connected in rectangular frame bottom, directional wheel is symmetrically fixedly connected in rectangular frame bottom, handle is fixedly connected in rectangular frame top, door frame is installed in rectangular frame top, hoist pulley body is installed in door frame outer wall, fixed link is symmetrically fixedly connected in rectangular frame top, support rod is symmetrically fixedly connected in fixed link two sides, support leg is symmetrically fixedly connected in rectangular frame bottom, adjusting assembly for adjusting the height of door frame is installed in rectangular frame top, lifting assembly for driving support leg lifting is installed in rectangular frame bottom, the trolley for large hoist pulley provided by the utility model has the advantages that the service life of extension wheel set is prolonged, the height of door frame is accurately adjusted, and the disassembly and assembly efficiency is optimized.

Description

Technical Field

[0001] This utility model relates to the field of workshop equipment transportation technology, and in particular to a trolley for a large hoist. Background Technology

[0002] A hoist is a small, lightweight lifting device used for lifting, pulling, or moving heavy objects. It is widely used in industrial manufacturing, construction, warehousing and logistics, and other fields. It controls heavy objects through mechanical transmission and features a compact structure, easy operation, and strong applicability. It can play an important role in scenarios where space is limited or precise positioning is required.

[0003] In workshop operations, large lifting hoists face significant challenges in transportation and storage due to their large size and heavy weight. Currently, traditional handling tools such as ordinary trolleys and forklifts are mostly general-purpose equipment, which cannot meet the specialized transportation needs of large lifting hoists. These traditional tools are prone to swaying during movement and have poor stability. At the same time, traditional tools cannot adapt to the turning requirements of narrow workshop spaces, have a large turning radius, and have low transportation efficiency in complex workshop environments.

[0004] Therefore, it is necessary to provide a new trolley for large lifting hoists to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a trolley for large hoists.

[0006] The trolley for large lifting hoists provided by this utility model includes: a rectangular frame, with swivel wheels symmetrically and fixedly connected to the bottom of the rectangular frame, and directional wheels symmetrically and fixedly connected to the bottom of the rectangular frame, the swivel wheels cooperating with the directional wheels; a handle fixedly connected to the top of the rectangular frame; a gantry frame installed on the top of the rectangular frame; a lifting hoist body installed on the outer wall of the gantry frame; a fixed rod symmetrically and fixedly connected to the top of the rectangular frame; support rods symmetrically and fixedly connected to both sides of the fixed rod; support legs symmetrically and fixedly connected to the bottom of the rectangular frame for auxiliary support; an adjustment component for adjusting the height of the gantry frame installed on the top of the rectangular frame; and a lifting component for driving the support legs to rise and fall on the bottom of the rectangular frame.

[0007] Preferably, the ratio of the diameter of the omnidirectional wheels to the directional wheels is 1.2:1, and the wheel spacing between the omnidirectional wheels and the directional wheels is adapted to the width of the workshop.

[0008] Preferably, the adjusting assembly includes: a drive motor, a first worm, a first worm wheel, a threaded rod, and a slide rod. The drive motor is fixedly connected inside the fixed rod, and the first worm is fixedly connected to the output end of the drive motor. The first worm wheel is rotatably connected inside the fixed rod, and the first worm meshes with the first worm wheel. A threaded rod is fixedly connected to the shaft of the first worm wheel, and a slide rod is slidably connected inside the fixed rod. The tops of both slide rods are fixedly connected to the portal frame 5, and both slide rods are threadedly connected to the corresponding threaded rods.

[0009] Preferably, the lifting assembly includes: a throttle, a second worm gear, a second worm wheel, a first connecting rod, a second connecting rod, a gear, and a rack. A throttle is rotatably connected to one side of a rectangular frame. A second worm gear is symmetrically and fixedly connected inside the rectangular frame. A second worm wheel is symmetrically and fixedly connected inside the rectangular frame, and the second worm gear meshes with the second worm wheel. A first connecting rod is rotatably connected to the bottom of the rectangular frame, with one end fixedly connected to the throttle. Both second worm gears are fixedly connected to the first connecting rod. Gears are symmetrically and rotatably connected inside the rectangular frame. Second connecting rods are symmetrically and rotatably connected inside the rectangular frame. Both gears and second worm wheels are fixedly connected to their corresponding second connecting rods. A rack is slidably connected inside the rectangular frame, meshing with the gear. The bottom of the rack is fixedly connected to a support leg.

[0010] Preferably, telescopic rods are fixedly connected at equal intervals to the bottom of the rectangular frame, and the end of the telescopic rod away from the rectangular frame is fixedly connected to the support leg.

[0011] Preferably, the bottom of the rectangular frame has a right-angle notch.

[0012] Preferably, the gripping part of the handle has a threaded design.

[0013] Compared with related technologies, the trolley for large hoists provided by this utility model has the following advantages:

[0014] Extend the lifespan of wheelsets and improve storage safety:

[0015] With symmetrically arranged support legs and lifting components at the bottom of the rectangular frame, the support legs can be quickly lowered to the ground and make contact with the ground when the hoist body is stored or lifted. This transfers the weight of the equipment from the casters and directional wheels to the support legs, avoiding problems such as polyurethane wheel surface deformation and bearing wear caused by the wheel set bearing static load for a long time. At the same time, the support legs form a stable four-point support with the ground, significantly reducing the risk of tipping over due to the center of gravity shift.

[0016] Precisely adjust the height of the gantry frame to optimize assembly and disassembly efficiency:

[0017] The adjustable components on the top of the rectangular frame allow for stepless and precise adjustment of the gantry frame height. When assembling or disassembling the hoist, the gantry frame can be quickly adjusted to match the height of the hook of the workshop lifting equipment by operating the drive motor, avoiding the time-consuming and labor-intensive problems caused by traditional manual raising or moving. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the trolley for the large lifting hoist provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the adjustment component.

[0020] Figure 3 for Figure 1 The diagram shows the structure of the lifting assembly.

[0021] Figure 4 for Figure 3 The diagram shows the structure of the second connecting rod.

[0022] The following are the labeling elements in the diagram: 1. Rectangular frame; 2. Universal wheel; 3. Fixed wheel; 4. Handle; 5. Gantry frame; 6. Hoist body; 7. Fixed rod; 8. Support rod; 9. Support leg; 31. Drive motor; 32. First worm gear; 33. First worm wheel; 34. Threaded rod; 35. Slide rod; 41. Throttle; 42. Second worm gear; 43. Second worm wheel; 44. First connecting rod; 45. Second connecting rod; 46. Gear; 47. Rack; 51. Telescopic rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 4A trolley for a large lifting hoist includes: a rectangular frame 1, with swivel wheels 2 symmetrically fixedly connected to the bottom of the rectangular frame 1, and directional wheels 3 symmetrically fixedly connected to the bottom of the rectangular frame 1, the swivel wheels 2 and directional wheels 3 cooperating; a handle 4 fixedly connected to the top of the rectangular frame 1; a portal frame 5 installed on the top of the rectangular frame 1; a lifting hoist body 6 installed on the outer wall of the portal frame 5; a fixing rod 7 symmetrically fixedly connected to the top of the rectangular frame 1; support rods 8 symmetrically fixedly connected to both sides of the fixing rod 7; and a handle 4 fixedly connected to the bottom of the rectangular frame 1. The rectangular frame 1 is equipped with support legs 9 for auxiliary support. The top of the rectangular frame 1 is equipped with an adjustment component for adjusting the height of the gantry frame 5. The bottom of the rectangular frame 1 is equipped with a lifting component for driving the support legs 9 to rise and fall. The ratio of the diameter of the multiple sets of universal wheels 2 to the directional wheels 3 is 1.2:1. The wheel spacing of the universal wheels 2 and the directional wheels 3 is adapted to the width of the workshop. Telescopic rods 51 are fixedly connected at equal intervals at the bottom of the rectangular frame 1. The end of the telescopic rod 51 away from the rectangular frame 1 is fixedly connected to the support legs 9. The bottom of the rectangular frame 1 is provided with a right-angle notch. The gripping part of the handle 4 is threaded.

[0026] It should be noted that the telescopic rods 51, which are equidistantly arranged at the bottom of the rectangular frame 1, can provide auxiliary support and guidance for the support legs 9 during the raising and lowering process, thereby enhancing the stability of the support legs 9 during the raising and lowering process. The right-angle notch ensures that the support legs 9 will not hit the bottom of the rectangular frame 1 when retracted, thus preventing structural damage. The threaded design enhances the grip friction, prevents slipping, and improves operating comfort. The surface of the rectangular frame 1 is coated with red primer and sea blue topcoat, which also serve as rust prevention and warning functions.

[0027] Please see Figure 1 and Figure 2 The adjustment assembly includes: a drive motor 31, a first worm 32, a first worm wheel 33, a threaded rod 34, and a slide rod 35. The drive motor 31 is fixedly connected inside the fixed rod 7. The first worm 32 is fixedly connected to the output end of the drive motor 31. The first worm wheel 33 is rotatably connected inside the fixed rod 7. The first worm 32 meshes with the first worm wheel 33. The threaded rod 34 is fixedly connected to the axis of the first worm wheel 33. The slide rod 35 is slidably connected inside the fixed rod 7. The tops of both slide rods 35 are fixedly connected to the portal frame 55. Both slide rods 35 are threadedly connected to the corresponding threaded rods 34.

[0028] It should be noted that the rotation of the threaded rod 34 enables the sliding rod 35 connected to it to move up and down inside the fixed rod 7, thereby changing the height of the gantry frame 5 and the hoist body 6.

[0029] Please see Figure 1 , Figure 3 and Figure 4The lifting assembly includes: a throttle 41, a second worm gear 42, a second worm wheel 43, a first connecting rod 44, a second connecting rod 45, a gear 46, and a rack 47. A throttle 41 is rotatably connected to one side of a rectangular frame 1. The second worm gear 42 and the second worm wheel 43 are symmetrically and fixedly connected inside the rectangular frame 1, meshing with each other. A first connecting rod 44 is rotatably connected to the bottom of the rectangular frame 1, with one end fixedly connected to the throttle 41. Both second worm gears 42 are fixedly connected to the first connecting rod 44. Gears 46 and second connecting rods 45 are symmetrically and rotatably connected inside the rectangular frame 1. Both gears 46 and the second worm wheel 43 are fixedly connected to their corresponding second connecting rods 45. A rack 47 is slidably connected inside the rectangular frame 1, meshing with each other. The bottom of the rack 47 is fixedly connected to a support leg 9.

[0030] It should be noted that the right-angle notch design ensures that when the support leg 9 is retracted, it will not impact the bottom of the rectangular frame 1, causing structural damage and shortening the lifespan of the device.

[0031] The working principle of the trolley for large lifting hoists provided by this utility model is as follows:

[0032] Lifting hoist for transport:

[0033] During movement, the omnidirectional wheels 2 and directional wheels 3 at the bottom of the rectangular frame 1 work together. The omnidirectional wheels 2 can turn freely 360 degrees, while the directional wheels 3 ensure the stability of straight-line movement. The wheel diameter ratio of the two is 1.2:1 and the wheel spacing is adapted to the width of the workshop, which allows the trolley to turn flexibly in the narrow space of the workshop, reduce the turning radius, improve the transfer efficiency in complex environments, and overcome the problem of inconvenient turning of traditional tools. At the same time, the operator can push the trolley by gripping the handle 4. The threaded design of the gripping part of the handle 4 increases the friction and makes it easy to operate.

[0034] Disassembling and assembling the hoist body 6:

[0035] When disassembling and assembling the hoist body 6, the drive motor 31 inside the fixed rod 7 is started. The first worm 32 at the output end of the drive motor 31 rotates accordingly. The first worm 32 meshes with the first worm wheel 33, driving the first worm wheel 33 to rotate. The threaded rod 34 fixedly connected to the shaft of the first worm wheel 33 rotates inside the fixed rod 7. Since the two sliding rods 35 are threadedly connected to the corresponding threaded rods 34, and the top of the sliding rods 35 is fixedly connected to the gantry frame 5, the rotation of the threaded rods 34 is converted into the sliding of the sliding rods 35 up and down along the inside of the fixed rod 7, thereby realizing stepless and precise adjustment of the height of the gantry frame 5. By operating the drive motor 31, the gantry frame 5 can be quickly adjusted to a position that matches the height of the hook of the workshop lifting equipment, avoiding the time-consuming and laborious problems caused by traditional manual raising or moving, and significantly optimizing the disassembly and assembly efficiency.

[0036] Storage of hoist body 6:

[0037] When the hoist body 6 needs to be stored or hoisted, the lifting assembly starts working. The operator turns the handle 41, which drives the first connecting rod 44 to rotate. The first connecting rod 44 is fixedly connected to the two second worm gears 42, so that the second worm gears 42 rotate synchronously. The second worm gears 42 mesh with the second worm wheel 43, driving the second worm wheel 43 to rotate. The second worm wheel 43 is fixedly connected to the second connecting rod 45, which in turn drives the gear 46 to rotate through the second connecting rod 45. The gear 46 meshes with the rack 47, converting the rotation of the gear 46 into the up-and-down linear motion of the rack 47. Since the bottom of the rack 47 is fixedly connected to the support leg 9, the support leg 9 is finally raised and lowered. When the support leg 9 touches the ground, the weight of the equipment is transferred from the universal wheels 2 and the directional wheels 3 to the support leg 9, avoiding the wheel assembly from bearing static loads for a long time, reducing polyurethane wheel surface deformation, bearing wear, etc., and extending the service life of the wheel assembly. At the same time, the support leg 9 forms a stable four-point support structure with the ground, reducing the risk of tipping due to the center of gravity shift and improving storage safety.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A trolley for a large hoist, characterized in that, include: A rectangular frame (1) is symmetrically and fixedly connected to the bottom of the rectangular frame (1) with casters (2) and fixed wheels (3) symmetrically and fixedly connected to the bottom of the rectangular frame (1). The casters (2) and fixed wheels (3) cooperate with each other. A handle (4) is fixedly connected to the top of the rectangular frame (1). A portal frame (5) is installed on the top of a rectangular frame (1), and a hoist body (6) is installed on the outer wall of the portal frame (5); Fixed rod (7), the top of the rectangular frame (1) is symmetrically fixedly connected with fixed rod (7), and the two sides of the fixed rod (7) are symmetrically fixedly connected with support rod (8); Support legs (9): The bottom of the rectangular frame (1) is symmetrically fixed with support legs (9) for auxiliary support; Adjustment assembly: An adjustment assembly for adjusting the height of the gantry frame (5) is installed on the top of the rectangular frame (1); The lifting assembly is installed at the bottom of the rectangular frame (1) for driving the support leg (9) to lift.

2. The trolley for large hoists according to claim 1, characterized in that, The ratio of the diameter of the omnidirectional wheels (2) to the directional wheels (3) is 1.2:1, and the wheel spacing of the omnidirectional wheels (2) and the directional wheels (3) is adapted to the width of the workshop.

3. The trolley for large hoists according to claim 1, characterized in that, The adjustment assembly includes: a drive motor (31), a first worm (32), a first worm wheel (33), a threaded rod (34), and a slide rod (35). The drive motor (31) is fixedly connected inside the fixed rod (7). The first worm (32) is fixedly connected to the output end of the drive motor (31). The first worm wheel (33) is rotatably connected inside the fixed rod (7). The first worm (32) meshes with the first worm wheel (33). The threaded rod (34) is fixedly connected to the axis of the first worm wheel (33). The slide rod (35) is slidably connected inside the fixed rod (7). The tops of the two slide rods (35) are fixedly connected to the portal frame 5. The two slide rods (35) are threadedly connected to the corresponding threaded rods (34).

4. The trolley for large hoists according to claim 1, characterized in that, The lifting assembly includes: a throttle (41), a second worm (42), a second worm wheel (43), a first connecting rod (44), a second connecting rod (45), a gear (46), and a rack (47). A throttle (41) is rotatably connected to one side of the rectangular frame (1). A second worm (42) is symmetrically fixedly connected inside the rectangular frame (1). A second worm wheel (43) is symmetrically fixedly connected inside the rectangular frame (1). The second worm (42) meshes with the second worm wheel (43). A first connecting rod (44) is rotatably connected to the bottom of the rectangular frame (1). 4) One end is fixedly connected to the throttle (41), and the two second worm gears (42) are fixedly connected to the first connecting rod (44). Gears (46) are symmetrically rotatably connected inside the rectangular frame (1). The second connecting rod (45) is symmetrically rotatably connected inside the rectangular frame (1). The two gears (46) and the second worm gear (43) are fixedly connected to the corresponding second connecting rod (45). A rack (47) is slidably connected inside the rectangular frame (1). The gears (46) and the rack (47) mesh. The bottom of the rack (47) is fixedly connected to the support leg (9).

5. The trolley for large hoists according to claim 1, characterized in that, The bottom of the rectangular frame (1) is fixedly connected with telescopic rods (51) at equal intervals. The end of the telescopic rod (51) away from the rectangular frame (1) is fixedly connected to the support leg (9).

6. The trolley for large hoists according to claim 1, characterized in that, The rectangular frame (1) has a right-angle notch at the bottom.

7. The trolley for large hoists according to claim 1, characterized in that, The gripping part of the handle (4) is threaded.

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