Turnaround vehicle with self-unloading adjustment unit

Abstract

The present application relates to a turnover vehicle with a self-unloading adjustment unit, belonging to the technical field of transfer equipment, which includes a frame, and the frame includes: a storage mechanism, including a storage rack slidably connected to the frame vertically, and a guide assembly is provided between the storage rack and the frame for tilting the storage rack downward to be close to the bottom surface of the frame; a driving mechanism is used to drive the storage mechanism to rise and fall vertically along the frame. The frame can be pushed to the side of the switch cabinet, and the storage rack on the frame can be lifted and lowered in the vertical direction by the driving mechanism. After rising to the same height as the chassis of the switch cabinet, the storage rack can be temporarily parked here, and the chassis is pulled at the same time, so that the chassis slides outward and is placed flat on the storage rack. At this time, the storage rack can be lowered by the driving mechanism. When the storage rack is close to the ground, the storage rack can be tilted to a certain extent by adjusting the angle of the guide assembly. At this time, the chassis can be sent out without the help of additional tools, and the operation is relatively convenient.

Description

Technical Field

[0001] The present application relates to the technical field of transfer equipment, and in particular to a turnover vehicle with a self-unloading adjustment unit. Background Art

[0002] In the withdrawable switchgear, the most common one is the center-mounted switchgear. In order to facilitate the push-in and pull-out functions of the middle structure of the circuit breaker, a chassis is generally used to carry the components inside the circuit breaker, and the wheels installed on the chassis move forward or backward on the track inside the center-mounted switchgear.

[0003] When the chassis needs to be pulled out for maintenance, specific tools are often used to carry the chassis. However, since the weight of the chassis reaches hundreds of kilograms, the stability and convenience of the tools are more important.

[0004] For the current center-mounted circuit breakers, the relevant unloading tool is a turnover trolley. The lifting structure of the turnover trolley supports the chassis from the bottom side. The chassis cannot actually be completely attached to the ground. The chassis cannot be directly pushed out at this height. It still needs to use additional tools or cooperate with other operators to unload, which is inconvenient. Summary of the invention

[0005] In order to solve the problem that it is inconvenient for operators to carry chassis vehicles at present, the present application provides a chassis vehicle with a self-unloading adjustment unit.

[0006] The present application provides a chassis vehicle with a self-unloading adjustment unit, which adopts the following technical solution:

[0007] A turnover vehicle with a self-unloading adjustment unit comprises a vehicle frame, and the vehicle frame comprises:

[0008] The storage mechanism comprises a storage rack slidably connected to the vertical side of the frame, and a guide assembly is provided between the storage rack and the frame for making the storage rack tilt downward to be close to the bottom surface of the frame;

[0009] The driving mechanism is used to drive the storage mechanism to move vertically up and down along the frame.

[0010] By adopting the above technical solution, the frame can be pushed to the side of the switch cabinet, and the storage rack on the frame can be lifted and lowered in the vertical direction by the driving mechanism. After rising to the same height as the chassis car of the switch cabinet, the storage rack can be temporarily parked here, and at the same time, the chassis car is pulled to slide outward and placed flat on the storage rack. At this time, the storage rack can be lowered by the driving mechanism. When the storage rack is close to the ground, the storage rack can produce a certain amount of inclination through the angle adjustment of the guide assembly. At this time, the chassis car can be sent out without the help of additional tools or external power supply, and the operation is very convenient.

[0011] In a specific possible implementation scheme, the guide assembly includes a positioning wheel connected to the outside of the rack, and at least one offset wheel located at the lower side of the positioning wheel and connected to the rack, the frame is provided with a slide rail for the positioning wheel and the offset wheel to slide vertically, and the guide assembly also includes an offset area connected to the lower side of the slide rail;

[0012] When the offset wheel enters the offset area, the storage rack will rotate with the positioning wheel as the rotation axis, so that the storage rack is tilted downward.

[0013] By adopting the above technical solution, the guide assembly is actually a combination of a positioning wheel and an offset wheel. In order to realize the translational movement of the storage rack, the storage rack is provided with at least one positioning wheel and an offset wheel, and both the positioning wheel and the offset wheel slide in the slide rail, forming a rotation constraint of the storage rack. At the same time, in order to allow the storage rack to swing, the offset wheel can be moved into the offset area on the lower side of the slide rail, which is equivalent to the offset wheel being disengaged from the vertical slide rail. At this time, the storage rack actually has only one rotation point, the positioning wheel, in the slide rail. The storage rack can rotate with the positioning wheel as the center of the circle, thereby allowing the storage rack to be tilted and against the ground, and the chassis vehicle can slide out directly.

[0014] In a specific possible implementation scheme, the storage rack is detachably connected to a positioning mechanism for cooperating with the switch cabinet for positioning;

[0015] The positioning mechanism comprises a positioning frame, a locking tongue connected to the positioning frame, and two positioning columns located on both sides of the positioning frame.

[0016] By adopting the above technical solution, in order to make it safer when taking out the chassis vehicle and to ensure that the operator can take out the chassis vehicle as accurately as possible, the present application also designs a detachable positioning mechanism; wherein, the lock tongue is present on the positioning frame, and the lock tongue is located in the middle of the positioning frame. The lock tongue can be hooked on the switch cabinet by means of movable engagement. In order to ensure the stability of the chassis vehicle taking out the goods, the upper surface of the positioning frame is basically flush with the upper surface of the storage rack. In addition, the positioning columns on both sides of the positioning frame can be inserted into the switch cabinet, so that the positioning of the storage rack relative to the switch cabinet is more accurate and the structure is more stable.

[0017] In a specific possible implementation scheme, the positioning frame is provided with an elastic member for rotating the lock tongue toward the hook surface of the lock tongue; the storage rack is slidably connected with a lock plate, and the storage rack is also provided with an unlocking member for keeping the lock plate and the lock tongue in a state of conflict or separation;

[0018] When the lock plate and the lock tongue are in a state of conflict, the lock tongue is released relative to the switch cabinet;

[0019] When the lock plate and the lock tongue are in a separated state, the lock tongue is locked relative to the switch cabinet through the elastic member.

[0020] By adopting the above technical solution, the lock tongue can be operated to achieve a locked state or a disengaged state relative to the switch cabinet; specifically, the lock tongue always has a rotation tendency, and the rotation direction of the rotation tendency is that the lock tongue rotates toward the hook surface of the lock tongue. The potential energy of the rotation force at this time comes from the elastic member, and the rotation force can enable the lock tongue to be firmly fastened after entering the slot of the switch cabinet; correspondingly, in order to disengage the lock tongue, the application also has an additional lock plate. When the lock plate conflicts with the positioning frame, the lock plate pushes the lock tongue to rotate to achieve disengagement. When the lock plate is separated from the positioning frame, the lock plate no longer conflicts with the positioning frame, and the lock tongue is locked.

[0021] In a specific possible implementation scheme, the positioning mechanism further includes two mounting racks located on both sides of the positioning rack, the storage rack is provided with mounting holes, and the mounting racks are provided with mounting columns for plugging and cooperating with the mounting holes.

[0022] By adopting the above technical solution, two mounting frames are provided on both sides of the positioning mechanism, and the mounting frames are equivalent to the structural extension of the positioning frame. A positioning column is provided on the inner wall of the mounting frame, and the positioning column can be inserted into the mounting hole. Therefore, the positioning column is actually a structural member that is ultimately connected between the positioning mechanism and the storage rack. The entire positioning mechanism can be removed by separating the positioning frame. After the positioning mechanism is removed, the bottom side of the storage rack is relatively flatter, so the storage rack can be smoothly rotated to a state of contacting the ground, thereby improving the stability during material retrieval without affecting unloading.

[0023] In a specific possible implementation scheme, the positioning frame is provided with an adjustment component for adjusting the distance between the positioning columns on both sides thereof;

[0024] The adjustment assembly comprises an adjustment rod sliding along the length direction of the positioning frame and an adjustment gear built into the positioning frame. The adjustment rod has a toothed structure meshing with the adjustment gear, and the adjustment rod is connected to the positioning column through the mounting frame.

[0025] By adopting the above technical solution, the switch cabinet has different width sizes, and the common sizes are mainly 650mm, 800mm and 1000mm. The spacing between the two positioning columns corresponding to the different sizes of the switch cabinet is also different; in the adjustment component, the adjustment gear can rotate adaptively, and the adjustment rod is driven to move during the rotation. During the movement of the adjustment rod, the spacing between the two positioning columns will be changed, thereby realizing the final width adjustment, and the operation is simple and easy to implement.

[0026] In a specific possible implementation scheme, one of the mounting frames is connected to a support plate, and the support plate is slidably connected to the storage rack; the support plate includes at least one support bottom plate and at least one support side plate.

[0027] By adopting the above technical solution, after the adjustment component is adjusted, the bottom area of ​​the chassis vehicle actually changes. In order to always support and position the surrounding sides of the chassis vehicle, one of the mounting frames supports the surrounding sides of the bottom side plate through a support plate. The structure of the support plate is close to an L-shape, which can support the bottom side of the chassis vehicle and the side of the chassis vehicle, thereby improving the stability of the chassis vehicle's turnover.

[0028] In a specific possible implementation scheme, an inner buckle groove is provided on the supporting side plate, and an outer buckle groove communicating with the inner buckle groove is provided on the storage rack.

[0029] By adopting the above technical solution, the inner buckle groove on the supporting side or the outer buckle groove of the storage rack are grooves set for the chassis to be inserted and positioned. Based on the structure of the chassis vehicle, the inner buckle groove and the outer buckle groove can increase the placement stability of the chassis vehicle and reduce the abnormal sliding distance of the chassis vehicle on the horizontal plane, especially during the lifting process, to maintain the stability of the state.

[0030] In a specific implementation scheme, the rack is provided with a fixed-width plate, and the fixed-width plate is provided with a plurality of fixed-width holes along its length direction. The rack is slidably connected with a fixed-width column and a spring for pushing the fixed-width column to fit into the fixed-width hole.

[0031] By adopting the above technical solution, the position of the fixed-width hole is set according to the measured fixed size to achieve the purpose of quantitative fixed-width adjustment; when the fixed-width column moves to the front of any fixed-width hole, the fixed-width column can be inserted into the fixed-width hole through the force of the spring, and the width of the corresponding storage rack that can accommodate the space can be 650mm, 800mm, or 1000mm. The number of bevel teeth on the lock plate is not less than the number of mounting holes. Even if the position of the lock tongue is adjusted according to the required width, the different bevel teeth on the lock plate can still contact the lock tongue to achieve unlocking.

[0032] In a specific possible implementation scheme, the driving mechanism includes a self-locking hand winch and a traction rope wound around the self-locking hand winch; a fixed pulley is provided on the frame, and a movable pulley is provided on the storage rack, and the traction rope passes around the fixed pulley to pull the movable pulley of the storage rack.

[0033] By adopting the above technical solution, the advantage of the self-locking hand-crank winch is that it can be shaken forward and backward and can be fixed at any point; the traction rope transmits the force of the self-locking hand-crank stirring, changes the direction of the force through the positioning wheel, and facilitates the application of force. The movable pulley on the storage rack reduces the operating force required by the operator, making the operation more labor-saving.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. The storage mechanism realizes the full coverage of the chassis vehicle for picking and placing. When the storage rack is lowered to the bottom side, the chassis vehicle can be unloaded very conveniently;

[0036] 2. The positioning mechanism outside the storage rack is detachable and can be adapted to the positioning rack for width adjustment. The structure is very flexible and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of an embodiment of the present application showing a chassis vehicle being loaded on a storage mechanism.

[0038] Figure 2 It is a structural schematic diagram of a positioning mechanism and a chassis vehicle according to an embodiment of the present application.

[0039] Figure 3 It is a structural schematic diagram of a driving mechanism according to an embodiment of the present application.

[0040] Figure 4 It is a structural schematic diagram of a guide component according to an embodiment of the present application.

[0041] Figure 5 It is a structural schematic diagram of the positioning mechanism embodied in an embodiment of the present application.

[0042] Figure 6 It is a structural schematic diagram of the storage mechanism according to an embodiment of the present application.

[0043] Figure 7 It is an exploded view of the positioning mechanism embodied in the embodiment of the present application.

[0044] Figure 8 It is a schematic diagram of the structure of the locking plate and the width-fixing plate according to an embodiment of the present application.

[0045] Fig. 9 It is a schematic diagram of the structure of a fixed-width column according to an embodiment of the present application.

[0046] Explanation of reference numerals: 1, frame; 11, slide rail; 12, offset area; 13, fixed pulley; 2, storage mechanism; 21, storage rack; 211, movable pulley; 212, feed port; 213, waist-shaped hole; 22, guide assembly; 221, positioning wheel; 222, offset wheel; 23, lock plate; 231, oblique teeth; 232, lock rod; 24, unlocking member; 241, gear lever; 242, U-shaped plate; 25, mounting hole; 26, support plate; 261, support bottom plate; 262, support side Plate; 263, inner buckle groove; 27, fixed width plate; 271, fixed width hole; 28, fixed width column; 281, spring; 282, pull rod; 29, outer buckle groove; 3, driving mechanism; 31, self-locking hand winch; 32, traction rope; 4, positioning mechanism; 41, positioning frame; 411, limit groove; 42, lock tongue; 421, dial block; 43, positioning column; 44, mounting frame; 441, mounting column; 45, adjustment assembly; 451, adjustment rod; 452, adjustment gear; 5, chassis vehicle. DETAILED DESCRIPTION

[0047] The present application is further described in detail below in conjunction with all the drawings.

[0048] Reference Figure 1 and Figure 2 A turnover vehicle with a self-unloading adjustment unit includes a frame 1, the frame 1 includes a placement mechanism 2 and a driving mechanism 3, the placement mechanism 2 is for a chassis 5 to be placed, and the placement mechanism 2 as a whole lifts the chassis 5 and components of the chassis 5 through the force provided by the driving mechanism 3 (a large number of components on the chassis 5 are not shown in the figure).

[0049] refer to Figure 2 and Figure 3 The driving mechanism 3 includes a self-locking hand winch 31 and a traction rope 32 wound around the self-locking hand winch 31. The self-locking hand winch 31 is a bidirectional self-locking structural member. Only when the operator manually operates the self-locking hand winch 31, the traction rope 32 can be pulled or sent out, and the rest of the state remains in a self-locking state. The storage mechanism 2 includes a storage rack 21, a guide assembly 22 connected to the outside of the storage rack 21, and a front feed port 212 of the storage rack 21 can be used for the chassis 5 to slide in; a movable pulley 211 is connected to the storage rack 21, and a fixed pulley 13 is connected to the top of the frame 1; the traction rope 32 sequentially passes through multiple groups of fixed pulleys 13 and the movable pulley 211 to form a lifting point of the storage rack 21, and the movable pulley 211 is used to split the force, thereby reducing the force required for the self-locking hand winch 31, and achieving the purpose of saving effort.

[0050] refer to Figure 3 and Figure 4The guide assembly 22 includes a positioning wheel 221 connected to the outside of the rack 21 and an offset wheel 222 located at the bottom of the positioning wheel 221. Both the positioning wheel 221 and the offset wheel 222 are rotatably connected to the rack 21. The frame 1 is provided with a slide rail 11, and the bottom side of the slide rail 11 is connected with an offset area 12. The offset area 12 is tilted away from the feed port 212 of the rack 21. Therefore, when the offset wheel 222 enters the offset area 12, it slides along the wall of the offset area 12. The rack 21 as a whole will rotate with the axis of the positioning wheel 221 as the axis, so that the feed port 212 of the rack 21 is tilted downward and touches the ground, that is, the distance between the rack 21 and the ground is 0. At this time, the chassis 5 can be sent out without the help of tools. In order to improve the lifting stability of the rack 21, the offset wheels 222 can be set as multiple groups. In this embodiment, the offset wheels 222 are set as one group.

[0051] refer to Figure 1 The outer side of the storage rack 21 is detachably connected with a positioning mechanism 4, which is used to cooperate with the switch cabinet for positioning and is temporarily hooked on the switch cabinet so that the relative position of the storage rack 21 remains unchanged during the withdrawal of the chassis 5. When the chassis 5 is sent out, the positioning mechanism 4 can be removed so that there is still enough inclined space on the bottom side of the storage rack 21 to complete the bottom unloading.

[0052] refer to Figure 5 and Figure 6 The positioning mechanism 4 includes a positioning frame 41, a locking tongue 42 located in the middle of the positioning frame 41, and mounting frames 44 located on both sides of the positioning frame 41. The inner wall of the mounting frame 44 is provided with mounting posts 441, and both sides of the storage rack 21 are provided with mounting holes 25 for the mounting posts 441 to be inserted, so as to achieve quick disassembly and quick installation. The mounting frame 44 is connected with positioning posts 43, and the two positioning posts 43 can be inserted into the switch cabinet to position the storage rack 21 relative to the switch cabinet.

[0053] refer to Figure 7 The lock tongue 42 is rotatably connected to the positioning frame 41. The lock tongue 42 always has a tendency to automatically rotate in the counterclockwise direction by the potential energy of the torsion spring (not shown in the figure). The counterclockwise direction is the m direction shown in the figure, and there is no need to maintain this state manually. The positioning frame 41 is provided with a limiting groove 411, which can limit the rotation of the lock tongue 42. At the same time, a shifting block 421 that passes through the positioning frame 41 is fixed to the lock tongue 42, and the lock tongue 42 can be rotated by the shifting block 421. The lock tongue 42 rotates away from the m direction to the release direction, and the lock tongue 42 rotates along the m direction to the locking direction.

[0054] Continue to refer Figure 7In order to improve the applicable scope of the positioning mechanism 4, so that it can be applicable to cabinets with a width of 650mm, 800mm and 1000mm, an adjustment component 45 is provided on the positioning frame 41. The adjustment component 45 includes an adjustment gear 452 in the positioning frame 41, an adjustment rod 451 meshed with the outside of the adjustment gear 452, and the adjustment rod 451 can slide along the length direction of the positioning frame 41, and the end of the adjustment rod 451 is connected to the mounting frame 44. By rotating the adjustment gear 452, the two adjustment rods 451 are driven to slide relative to each other, thereby changing the positioning spacing of the two positioning columns 43. During actual adjustment, the mounting frame 44 can be directly pushed and pulled from both sides to adjust the overall width.

[0055] refer to Figure 6 and Figure 8 , a support plate 26 is slidably connected to the storage rack 21, and a mounting hole 25 exists on the support plate 26. The support plate 26 can slide with the width change of the positioning mechanism 4. The longitudinal section of the support plate 26 is L-shaped. The support plate 26 includes a support side plate 262 and a support bottom plate 261. The support side plate 262 can support the side of the chassis 5, and still position and protect the side of the chassis 5 after adjusting the width. An inner buckle groove 263 is provided on the support side plate 262, and an outer buckle groove 29 is provided on the storage rack 21. The inner buckle groove 263 on the support plate 26 or the outer buckle groove 29 on the storage rack 21 are structures set for the insertion and positioning of the chassis 5. Based on the structure of the chassis 5, the setting of the inner buckle groove 263 and the outer buckle groove 29 can increase the placement stability of the chassis 5.

[0056] refer to Figure 8 and Fig. 9 , a fixed width plate 27 is provided on the storage rack 21, and a plurality of fixed width holes 271 are opened along the length direction of the fixed width plate 27, and a fixed width column 28 is slidably connected to the storage rack 21, and a spring 281 is sleeved on the fixed width column 28 to push the fixed width column 28 to move toward the fixed width hole 271. The positions of the three fixed width holes 271 shown in the figure correspond to the matching points of the aforementioned cabinet widths of 650mm, 800mm and 1000mm. A pull rod 282 is provided on the side of the fixed width column 28, and the fixed width column 28 can be pulled out of the fixed width hole 271 by the pull rod 282, and conversely, the fixed width column 28 can be quickly inserted into different fixed width holes 271 through the deformation potential energy of the spring 281.

[0057] In order to be able to remotely move the lock bolt 42, refer to Figure 8 A lock plate 23 is slidably connected to the rack 21 along its width direction, and a plurality of oblique teeth 231 extend from one side of the lock plate 23. Figure 2When the lock plate 23 is pushed forward, the lock plate 23 will push the shifting block 421 of the lock tongue 42 to rotate to release the lock, and vice versa, the lock tongue 42 returns to its original position. The multiple oblique teeth 231 can correspond to the multiple widths of the positioning mechanism 4. Different oblique teeth 231 are used to shift the lock tongue 42 according to the different widths of the positioning mechanism 4. It should be noted that the number of oblique teeth 231 is not less than the number of mounting holes 25.

[0058] refer to Figure 6 and Figure 8 In order to keep the lock plate 23 and the lock tongue 42 in a state of conflict or separation, a lock rod 232 extending upward is connected to the lock plate 23, and a waist-shaped hole 213 for the lock rod 232 to slide is opened along the width direction of the storage rack 21. An unlocking member 24 is fixed to the storage rack 21, and the unlocking member 24 includes a shift rod 241 that can be adjusted along the length direction of the storage rack 21, and a U-shaped plate 242 for the shift rod 241 to slide and provide a certain damping force; under the blocking limit of the shift rod 241, the lock rod 232 will be constrained at one end of the waist-shaped hole 213, so as to realize the switching between the unlocking and unlocking states.

[0059] The implementation principle of the embodiment of the present application is as follows: before taking the chassis 5, firstly make adaptive adjustments according to the width of the switch cabinet, then install a positioning mechanism 4 on the outside of the storage rack 21, and then use the self-locking hand-cranked winch 31 to raise the storage rack 21 to a specified height, flush with the chassis 5 of the switch cabinet.

[0060] At this time, align the two positioning columns 43 and the middle lock tongue 42 with the switch cabinet and insert them, and turn the lock rod 232 to rotate the lock tongue 42 to complete the locking action. Take out the chassis 5 as a whole and place it flat on the storage rack 21. After the chassis 5 is completely taken out, the paddles on both sides of the chassis 5 will be inserted into the inner buckle groove 263 and / or the outer buckle groove 29.

[0061] Further, the lock rod 232 is moved to rotate the lock tongue 42 to push out the rack 21. The self-locking hand winch 31 is shaken, and the positioning mechanism 4 needs to be removed during the process. When the offset wheel 222 gradually enters the offset area 12, the rack 21 gradually tilts and touches the ground, and the entire chassis 5 and the components carried on the chassis 5 can be pushed out.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A turnover vehicle with a self-unloading adjustment unit, comprising a vehicle frame (1), characterized in that: The vehicle frame (1) comprises: The storage mechanism (2) comprises a storage rack (21) slidably connected to the vertical side of the frame (1), and a guide assembly (22) is provided between the storage rack (21) and the frame (1) for tilting the storage rack (21) downward to be close to the bottom surface of the frame (1); The driving mechanism (3) is used for driving the storage mechanism (2) to vertically rise and fall along the frame (1); the guide assembly (22) comprises a positioning wheel (221) connected to the outside of the storage rack (21), and at least one offset wheel (222) located below the positioning wheel (221) and connected to the storage rack (21); the frame (1) is provided with a slide rail (11) for the positioning wheel (221) and the offset wheel (222) to vertically slide; the guide assembly (22) further comprises an offset area (12) connected to the lower side of the slide rail (11); When the offset wheel (222) enters the offset area (12), the storage rack (21) will rotate with the positioning wheel (221) as the rotation axis, so that the storage rack (21) is tilted downward.

2. The turnover vehicle with a self-unloading adjustment unit according to claim 1, characterized in that: The storage rack (21) is detachably connected to the outside thereof with a positioning mechanism (4) for cooperating with the switch cabinet for positioning; The positioning mechanism (4) comprises a positioning frame (41), a locking tongue (42) connected to the positioning frame (41), and two positioning columns (43) located on both sides of the positioning frame (41).

3. The turnover vehicle with a self-unloading adjustment unit according to claim 2, characterized in that: The positioning frame (41) is provided with an elastic member for rotating the lock tongue (42) toward the hook surface of the lock tongue (42); the storage rack (21) is slidably connected with a lock plate (23), and the storage rack (21) is also provided with an unlocking member (24) for keeping the lock plate (23) and the lock tongue (42) in a conflicting state or a separated state; when the lock plate (23) and the lock tongue (42) are in a conflicting state, the lock tongue (42) is released relative to the switch cabinet; When the lock plate (23) and the lock tongue (42) are in a separated state, the lock tongue (42) is locked relative to the switch cabinet through the elastic member.

4. The turnover vehicle with a self-unloading adjustment unit according to claim 2, characterized in that: The positioning mechanism (4) further comprises two mounting frames (44) located on both sides of the positioning frame (41); the storage rack (21) is provided with a mounting hole (25); and the mounting frame (44) is provided with a mounting column (441) for inserting and matching with the mounting hole (25).

5. The turnover vehicle with a self-unloading adjustment unit according to claim 4, characterized in that: The positioning frame (41) is provided with an adjustment component (45) for adjusting the distance between the positioning columns (43) on both sides thereof; The adjustment assembly (45) comprises an adjustment rod (451) sliding along the length direction of the positioning frame (41), and an adjustment gear (452) built into the positioning frame (41); the adjustment rod (451) has a toothed structure meshing with the adjustment gear (452); and the adjustment rod (451) is connected to the positioning column (43) via a mounting frame (44).

6. The turnover vehicle with a self-unloading adjustment unit according to claim 5, characterized in that: One of the mounting frames (44) is connected to a support plate (26), and the support plate (26) is slidably connected to the storage rack (21); the support plate (26) includes at least one support bottom plate (261) and at least one support side plate (262).

7. The turnover vehicle with a self-unloading adjustment unit according to claim 5, characterized in that: The storage rack (21) is provided with a fixed width plate (27), and the fixed width plate (27) is provided with a plurality of fixed width holes (271) along its length direction. The storage rack (21) is slidably connected with a fixed width column (28) and a spring (281) for pushing the fixed width column (28) to snap into the fixed width hole (271).

8. The turnover vehicle with a self-unloading adjustment unit according to claim 6, characterized in that: The supporting side plate (262) is provided with an inner buckle groove (263), and the storage rack (21) is provided with an outer buckle groove (29) communicating with the inner buckle groove (263).

9. The turnover vehicle with a self-unloading adjustment unit according to any one of claims 1 to 8, characterized in that: The driving mechanism (3) comprises a self-locking hand-cranked winch (31) and a traction rope (32) wound around the self-locking hand-cranked winch (31); a fixed pulley (13) is provided on the vehicle frame (1), and a movable pulley (211) is provided on the storage rack (21); the traction rope (32) passes around the fixed pulley (13) to pull the movable pulley (211) of the storage rack (21).

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