Trolley turnover tool

Abstract

This application discloses a trolley tilting fixture, belonging to the field of trolley assembly technology. It includes a pre-embedded frame; a rotating shaft rotatably connected to the top of the pre-embedded frame, with a tilting base fixedly connected to the middle of the rotating shaft. The tilting base is L-shaped and used to hold the vehicle frame; the tilting base is driven by an external force to tilt around the rotating shaft; and a clamping mechanism installed on the outside of the tilting base to fix the vehicle frame. The clamping mechanism includes an adjustment plate that slides on the tilting base. This application, by using a rotatable tilting base, solves the problem of the cumbersome need for tilting with a crane or hoisting equipment through the multi-area support and rotation of the vehicle frame by the tilting base. It achieves stable positioning of the vehicle frame during tilting, thus avoiding scratches on the paint surface of the vehicle frame. The hollow square tube design prevents the entire vehicle frame from wobbling on the tilting base when installing casters later.

Description

Technical Field

[0001] This application relates to the field of trolley assembly technology, and more specifically, to trolley tilting fixtures. Background Technology

[0002] A trolley is a mobile device used for moving, transporting, or supporting items. It is usually equipped with casters to facilitate flexible movement in places such as factories, warehouses, and construction sites. It can be hand-push, electric, or mechanically linked.

[0003] In related technologies, in order to solve the problem of the trolley swinging easily due to reverse traction, for example, the patent with the prior art publication number CN209051513U provides a combined trolley. When the device is pulled in the reverse direction, it can automatically adjust the position of the directional wheel. The swaying amplitude of the interconnected trolleys is small, making bidirectional traction smoother.

[0004] Although the existing technical solutions mentioned above have solved the problem of the trolley swinging when pulled in the opposite direction by automatically adjustable directional wheels, when assembling the trolley, since the caster mounting surface is located at the bottom of the trolley frame, it is usually necessary to use a crane or hoisting equipment to flip the entire frame. However, this process is too cumbersome, and the frame paint is easily scratched by bumps during the flipping.

[0005] In view of this, we propose a trolley tilting fixture. Utility Model Content

[0006] The purpose of this application is to provide a trolley tilting fixture that can effectively solve the problem in the prior art that requires cumbersome tilting using a crane or hoisting equipment, and achieves stable position of the frame when tilting, thereby avoiding scratches on the paint surface of the frame.

[0007] This application provides a trolley tilting fixture, including:

[0008] Pre-embedded frame;

[0009] A rotating shaft is rotatably connected to the top of the pre-embedded frame. A flip base is fixedly connected to the middle of the rotating shaft. The flip base is L-shaped and used to place the vehicle frame. The flip base is driven by an external force to flip around the rotating shaft.

[0010] A clamping mechanism is installed on the outside of the flip base to secure the vehicle frame;

[0011] The clamping mechanism includes an adjustment plate that slides on a flip base. The adjustment plate is driven by an external force to slide up and down. Two hollow square tubes are slidably connected in the middle of the adjustment plate for pressing the vehicle frame.

[0012] As an optional solution to the technical solution of this application, the inner wall of the pre-embedded frame is fixedly connected to two connectors A, the bottom of the flip base is fixedly connected to two connectors B, and a hydraulic cylinder is rotatably connected between the connectors A and the corresponding connectors B.

[0013] As an optional solution to the technical solution of this application, the clamping mechanism further includes a square shaft fixed to the bottom of the adjustment plate. The square shaft is through and slidably disposed with respect to the flip base. A support seat A is slidably disposed on the outside of the adjustment plate. The support seat A is fixedly disposed on the top of one side of the flip base. A screw is threadedly connected to the inner wall of the square shaft. One end of the screw is rotatably connected to the support seat A through a bearing. A gripping rod B is fixedly connected to the top of the screw.

[0014] As an optional solution to the technical solution in this application, the top of the pre-embedded frame is fixedly connected to two mounting seats, and the mounting seats are rotatably connected to the rotating shaft; the top of the flip base is fixedly connected to two support beams for supporting the vehicle frame, and a limit beam is fixedly provided on one side of the flip base perpendicular to the support beams.

[0015] As an optional solution to the technical solution of this application, a support base B is fixedly connected to the side of the flip base away from the support base A. A gripping rod A is rotatably connected inside the support base B. The gripping rod A is fixedly connected to the screw. A limit rod is slidably connected to the middle of one of the hollow square tubes. The limit rod is located on the side of the adjustment plate away from the mounting base. A magnetic plate is fixedly connected to the bottom of the limit rod. A metal plate is fixedly connected to the top of the flip base. The metal plate is located on the sliding path of the magnetic plate. The metal plate and the magnetic plate are attracted to each other.

[0016] As an alternative to the technical solution in this application, another hollow square tube has a counterweight fixed to its inner wall, and a protective plate is fixed to the end of the counterweight, with the protective plate positioned near the mounting base.

[0017] As an optional solution to the technical solution in this application, protective rubber is provided in the middle of the flip base and the top of the support beam to protect the paint surface of the vehicle frame.

[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0019] (1) This application uses a rotatable flip base. By using the flip base to support the frame on multiple areas and rotate it, the problem of needing to use a crane or hoisting equipment to flip the frame is solved. The frame is stable when flipped, thus avoiding scratches on the paint surface of the frame. The hollow square tube can prevent the frame from shaking on the flip base when the casters are installed.

[0020] (2) This application can solve the problem of hand jamming in special situations by providing a gripping rod A at the bottom of the screw. Combined with the adsorption effect between the magnetic plate and the metal plate, it can avoid the problem of the staff having to hold the hollow square tube with one hand when rotating the gripping rod A, which would cause adjustment trouble. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the trolley tilting fixture disclosed in a preferred embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of a trolley tilting fixture disclosed in a preferred embodiment of this application.

[0023] Figure 3 for Figure 2 Enlarged view of point A;

[0024] Figure 4 This is a schematic diagram of the clamping mechanism structure of the trolley tilting fixture disclosed in a preferred embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the hydraulic cylinder structure of the trolley tilting fixture disclosed in a preferred embodiment of this application;

[0026] The following are the labels in the diagram: 1. Embedded frame; 11. Mounting base; 12. Connector A; 13. Hydraulic cylinder; 2. Rotating shaft; 21. Tilting base; 22. Connector B; 23. Support beam; 24. Limiting beam; 25. Metal plate; 3. Clamping mechanism; 31. Adjusting plate; 32. Hollow square tube; 321. Counterweight; 322. Protective plate; 33. Square shaft; 34. Support base A; 35. Screw; 351. Bearing; 352. Grip rod B; 36. Support base B; 37. Grip rod A; 4. Limiting rod; 41. Magnetic plate; 100. Frame; 200. Wheel frame. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-5This application discloses a trolley tilting fixture, comprising an embedded frame 1, a rotating shaft 2, and a clamping mechanism 3. The rotating shaft 2 is rotatably connected to the top of the embedded frame 1, and a tilting base 21 is fixedly connected to the middle of the rotating shaft 2. The tilting base 21 is L-shaped and is used to place the trolley frame 100. The tilting base 21 is driven by an external force to tilt around the rotating shaft 2. The clamping mechanism 3 is installed on the outside of the tilting base 21 and is used to fix the trolley frame 100. The clamping mechanism 3 includes an adjusting plate 31 that slides on the tilting base 21. The adjusting plate 31 is driven by an external force to slide up and down. Two hollow square tubes 32 are slidably connected to the middle of the adjusting plate 31 for clamping the trolley frame 100. 0. Frame clamping; two connectors A12 are fixedly connected to the inner wall of the pre-embedded frame 1, and two connectors B22 are fixedly connected to the bottom of the flip base 21. A hydraulic cylinder 13 is rotatably connected between connectors A12 and their corresponding connectors B22; two mounting seats 11 are fixedly connected to the top of the pre-embedded frame 1, and the mounting seats 11 are rotatably connected to the rotating shaft 2; two support beams 23 are fixedly connected to the top of the flip base 21 for supporting the frame 100, and a limit beam 24 is fixedly installed on one side of the flip base 21 perpendicular to the support beams 23; protective rubber is provided in the middle of the flip base 21 and on the top of the support beams 23 for protecting the paint surface of the frame 100;

[0029] The pre-embedded frame 1 needs to be fixed in the working area. Then, the frame 100 to be flipped can be placed on the flipping base 21, and the two support beams 23 should be in contact. The frame on the side of the frame 100 can then abut against the other vertical surface of the flipping base 21, so that the frame 100 contacts the protective rubber on the flipping base 21 and the support beams 23. With the driving force of the clamping mechanism 3, the hollow square tube 32 can be brought closer to the frame of the frame 100 until it is tightened and clamped and fixed to the frame of the frame 100. When the flipping base 21 needs to be flipped later, the two hydraulic cylinders 13 can be activated. When the sliding shaft of the hydraulic cylinder 13 extends outward, the flipping base 21 can be rotated and flipped along the rotating shaft 2. After the flipping base 21 is flipped, the casters can be installed on the wheel frame 200 with the help of tools. When the sliding axis extends inward, the flip base 21 can be reset again. This step, under the action of rotating the flip base 21, can flip and clamp the entire frame 100, solving the problem of the cumbersome flipping that requires a crane or hoisting equipment. It achieves stable position of the frame 100 when flipped, thus avoiding scratches on the paint surface of the frame 100. The hollow square tube 32 can prevent the frame 100 from shaking on the flip base 21 when installing casters. At the same time, under the action of the fixed support beam 23, the contact area between the frame 100 and the flip base 21 can be reduced. With the protective rubber on the flip base 21 and the support beam 23, the effect of scratches on the paint surface of the frame 100 can be further reduced. At the same time, under the action of the fixed limiting beam 24, the stability effect of limiting the side frame of the frame 100 can be improved.

[0030] Reference Figure 3 and Figure 4 Based on the above embodiments, in order to drive the adjustment plate 31 to slide up and down to achieve clamping and fixing of the frame 100, the clamping mechanism 3 specifically includes a square shaft 33 fixed to the bottom of the adjustment plate 31. The square shaft 33 is through and slidably disposed with the flip base 21. A support seat A34 is slidably disposed on the outside of the adjustment plate 31. The support seat A34 is fixedly disposed on the top of one side of the flip base 21. A screw 35 is threadedly connected to the inner wall of the square shaft 33. One end of the screw 35 is rotatably connected to the support seat A34 through the bearing 351. A gripping rod B352 is fixedly connected to the top of the screw 35.

[0031] When the adjustment plate 31 needs to be driven, the operator can hold the middle of the gripping rod B352 and rotate it. This will cause the screw 35 to rotate on the inner wall of the square shaft 33. Under the action of the thread and the bearing 351, the square shaft 33 and the adjustment plate 31 slide downwards until the two hollow square tubes 32 clamp the frame of the frame 100. When the gripping rod B352 is rotated in the opposite direction, the adjustment plate 31 can be lifted as a whole and disengaged from the frame of the frame 100. This step, together with the rotation of the screw 35, can realize the downward pressing action of the hollow square tubes 32, which can improve the stability of the frame 100 when flipping on the flipping base 21. Moreover, the bearing 351 can reduce the resistance generated when rotating the gripping rod B352.

[0032] Reference Figure 3 and Figure 4 A support base B36 is fixedly connected to the side of the flip base 21 away from the support base A34. A gripping rod A37 is rotatably connected inside the support base B36. The gripping rod A37 is fixedly connected to the screw 35. A limit rod 4 is slidably connected to the middle of one of the hollow square tubes 32. The limit rod 4 is located on the side of the adjustment plate 31 away from the mounting base 11. A magnetic plate 41 is fixedly connected to the bottom of the limit rod 4. A metal plate 25 is fixedly connected to the top of the flip base 21. The metal plate 25 is located on the sliding path of the magnetic plate 41. The metal plate 25 and the magnetic plate 41 are attracted to each other.

[0033] When clamping the special frame 100, if the rotation space between the gripping rods B352 is small, after extending the hydraulic cylinder 13 to a certain angle (e.g., 45 degrees), the hydraulic cylinder 13 can be closed first, and the tilting base 21 can be suspended on the pre-embedded frame 1. During this process, the corresponding hollow square tube 32 can slide towards the vertical plane of the tilting base 21 under the action of gravity and pass over the frame of the frame 100. Then, the gripping rod A37 at the bottom of the tilting base 21 can be rotated to make the screw 35 rotate synchronously and complete the adjustment. At the same time, with the adsorption fixation between the magnetic plate 41 and the metal plate 25, the tilting base 21 is tilted. When tilted, the other hollow square tube 32 can be suspended in the air by the action of the extended limiting rod 4. When the position of the hollow square tube 32 to be adjusted needs to be changed later, the limiting rod 4 can be pulled up to disengage the magnetic plate 41 from the metal plate 25, and the hollow square tube 32 can be pulled to slide and adjust. This step is combined with the gripping rod A37 set at the bottom of the screw 35 to deal with the problem of getting hands stuck in special situations. Combined with the adsorption effect between the magnetic plate 41 and the metal plate 25, it can avoid the problem of the staff having to hold the position of the hollow square tube 32 with one hand when rotating the gripping rod A37, which would cause adjustment trouble.

[0034] Reference Figure 4 Another hollow square tube 32 has a counterweight 321 fixed to its inner wall, and a protective plate 322 fixed to the end of the counterweight 321. The protective plate 322 is set on the side close to the mounting base 11. When the hollow square tube 32 close to the mounting base 11 slides towards the vertical surface of the flip base 21, the weight of the counterweight 321 can accelerate the sliding of the designated hollow square tube 32, and the protective plate 322 can contact the surface of the flip base 21 first. Under the action of the counterweight 321, this step can accelerate the stability of the sliding of the designated hollow square tube 32 and reduce the phenomenon of jamming. Under the effect of the protective plate 322, the impact wear on the vertical surface of the flip base 21 can be reduced.

[0035] In summary, when using the trolley tilting fixture disclosed in this application, the pre-embedded frame 1 needs to be fixed in the working area. Then, the trolley frame 100 to be tilted can be placed on the tilting base 21, and the two support beams 23 can be brought into contact. The frame on the side of the trolley frame 100 can then abut against the other vertical surface of the tilting base 21, so that the trolley frame 100 contacts the protective rubber on the tilting base 21 and the support beams 23. With the driving force of the clamping mechanism 3, the hollow square tube 32 can be brought closer to the frame of the trolley frame 100 until it is tightened and clamped and fixed to the frame of the trolley frame 100. When it is necessary to tilt the tilting base 21, the two hydraulic cylinders 1 can be activated. 3. When the sliding shaft of hydraulic cylinder 13 extends outward, it rotates and flips the tilting base 21 along the rotating shaft 2. After the tilting base 21 is flipped, the casters can be installed on the wheel frame 200 with the help of tools. When the sliding shaft of hydraulic cylinder 13 extends inward, the tilting base 21 can be reset. When the adjusting plate 31 needs to be driven, the operator can hold the middle of the gripping rod B352 and rotate it to drive the screw 35 to rotate on the inner wall of the square shaft 33. Under the action of the thread and the bearing 351, the square shaft 33 and the adjusting plate 31 slide downward until the two hollow square tubes 32 cover the frame of the vehicle frame 100. Simply clamp it in place. When you rotate the gripping rod B352 in the opposite direction, the adjustment plate 31 will be lifted and disengaged from the frame 100. For special frames 100, if the rotation space between the gripping rods B352 is small, first extend the hydraulic cylinder 13 to a certain angle (e.g., 45 degrees), then close the hydraulic cylinder 13 and suspend the flip base 21 on the pre-embedded frame 1. During this process, the corresponding hollow square tube 32 will slide towards the vertical plane of the flip base 21 under gravity and pass over the frame of the frame 100. Then, rotate the bottom gripping rod A37 of the flip base 21 to make the screw 35 rotate synchronously and complete the adjustment. Simultaneously, with the magnetic plate 41 and the metal plate 25 adsorbing and fixing, when the flip base 21 is in an inclined state, under the action of the unfolding limiting rod 4, the other hollow square tube 32 can also be suspended in the air. When the position of the hollow square tube 32 to be adjusted needs to be changed later, the limiting rod 4 can be pulled up to separate the magnetic plate 41 from the metal plate 25, and the hollow square tube 32 can be pulled to slide and adjust as a whole. When the hollow square tube 32 close to the mounting base 11 slides towards the vertical surface of the flip base 21, the weight of the counterweight block 321 can accelerate the sliding of the designated hollow square tube 32, and the protective plate 322 can contact the surface of the flip base 21 first.

Claims

1. A trolley tilting fixture, characterized in that, Include: Embedded frame (1); Rotating shaft (2), the rotating shaft (2) is rotatably connected to the top of the pre-embedded frame (1), and a flip base (21) is fixed in the middle of the rotating shaft (2). The flip base (21) is L-shaped and is used to place the vehicle frame (100). The flip base (21) is driven by external force to flip around the rotating shaft (2). A clamping mechanism (3) is installed on the outside of the flip base (21) for fixing the frame (100); The clamping mechanism (3) includes an adjustment plate (31) that slides on the flip base (21). The adjustment plate (31) is driven by an external force to slide up and down. Two hollow square tubes (32) are slidably connected in the middle of the adjustment plate (31) for pressing the frame of the vehicle frame (100).

2. The trolley tilting fixture according to claim 1, characterized in that: The inner wall of the pre-embedded frame (1) is fixedly connected to two connectors A (12), and the bottom of the flip base (21) is fixedly connected to two connectors B (22). A hydraulic cylinder (13) is rotatably connected between the connectors A (12) and the corresponding connectors B (22).

3. The trolley tilting fixture according to claim 1, characterized in that: The clamping mechanism (3) also includes a square shaft (33) fixed to the bottom of the adjusting plate (31). The square shaft (33) is through and slidably disposed with respect to the flip base (21). A support seat A (34) is slidably disposed on the outside of the adjusting plate (31). The support seat A (34) is fixedly disposed on the top of one side of the flip base (21). A screw (35) is threadedly connected to the inner wall of the square shaft (33). One end of the screw (35) is rotatably connected to the support seat A (34) through a bearing (351). A gripping rod B (352) is fixedly connected to the top of the screw (35).

4. The trolley tilting fixture according to claim 1, characterized in that: The pre-embedded frame (1) has two mounting seats (11) fixedly connected to the top, and the mounting seats (11) are rotatably connected to the rotating shaft (2); the flip base (21) has two support beams (23) fixedly connected to the top, which are used to support the frame (100), and the flip base (21) has a limit beam (24) fixedly installed on one side perpendicular to the support beams (23).

5. The trolley tilting fixture according to claim 4, characterized in that: The rotating base (21) is fixedly connected to a support base B (36) on the side away from the support base A (34). A gripping rod A (37) is rotatably connected inside the support base B (36). The gripping rod A (37) is fixedly connected to the screw (35). A limiting rod (4) is slidably connected in the middle of one of the hollow square tubes (32). The limiting rod (4) is located on the side of the adjustment plate (31) away from the mounting base (11). A magnetic plate (41) is fixedly connected to the bottom of the limiting rod (4). A metal plate (25) is fixedly connected to the top of the rotating base (21). The metal plate (25) is located on the sliding path of the magnetic plate (41). The metal plate (25) and the magnetic plate (41) are attracted to each other.

6. The trolley tilting fixture according to claim 1, characterized in that: Another hollow square tube (32) has a counterweight (321) fixed to its inner wall, and a protective plate (322) is fixed to the end of the counterweight (321). The protective plate (322) is located on the side close to the mounting base (11).

7. The trolley tilting fixture according to claim 1, characterized in that: The flip base (21) and the top of the support beam (23) are both provided with protective rubber to protect the paint surface of the frame (100).

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