Locking structure of hopper of small-sized dumper and small-sized dumper

Abstract

A locking structure of a hopper of a small dumper comprises an elastic spring rod frame and four sets of clamping hook bodies, the four sets of clamping hook bodies are arranged at the bottom of the hopper of the small dumper, the two clamping hook bodies located in the front are symmetrically arranged, the two clamping hook bodies located in the rear are arranged side by side in the left-right direction, and the clamping hook bodies are of a triangular structure; in conclusion, when the hopper is placed on the frame, the hopper can be automatically clamped with the elastic spring rod frame, additional human intervention is not needed, operation is simpler, and the possibility of human errors is reduced; the locking between the hopper and the frame can be easily released by pushing the handle, so that the hopper can be overturned for unloading, and the operation is more convenient; the problems that a traditional locking structure is complex and easy to damage are solved, and the user experience and the practicability of equipment are improved by introducing automatic and modular elements.

Description

Technical Field

[0001] The present invention belongs to the technical field of material transport vehicles, and particularly relates to a locking structure for the hopper of a small material transport vehicle and a small material transport vehicle. Background Art

[0002] A small material transport vehicle is a small vehicle used for transporting materials, and is widely used in multiple fields such as construction sites, agriculture, manufacturing, and warehouse management. They usually have flexible mobility and can operate in narrow spaces, being very suitable for short-distance material handling; existing material transport vehicles generally include a vehicle frame and a hopper. The front end of the hopper is installed on the vehicle frame by a hinged manner, and the hopper can be turned forward to pour out the materials. A locking structure is also provided between the hopper and the vehicle frame to ensure that the hopper and the vehicle frame are firmly connected during transportation; however, the existing locking structure has the characteristics of inconvenient use, easy damage, and relatively complex structure, and has poor practicability. Summary of the Invention

[0003] The present invention aims to provide a locking structure for the hopper of a small material transport vehicle and a small material transport vehicle, and solve the technical problems of inconvenient use, easy damage, and relatively complex structure of the locking structure between the vehicle frame and the hopper of the existing small material transport vehicle.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A locking structure for the hopper of a small material transport vehicle includes an elastic spring rod frame and four groups of hook bodies. The four groups of hook bodies are arranged at the bottom of the hopper of the small material transport vehicle. The two hook bodies in the front are symmetrically arranged, and the two hook bodies in the rear are arranged side by side left and right. The hook body is a triangular structure;

[0006] The vehicle frame of the small material transport vehicle is a plate structure. Four square holes are opened on the upper surface of the vehicle frame of the small material transport vehicle. The four square holes correspond to the four hook bodies at the bottom of the hopper. There is a cavity inside the vehicle frame of the small material transport vehicle. When the hopper is placed on the vehicle frame, the four hook bodies are respectively inserted into the cavity inside the vehicle frame through the four square holes;

[0007] The elastic spring rod frame is located inside the cavity of the vehicle frame. Four pairs of guiding members are fixed inside the cavity. The four pairs of guiding members are respectively located directly below the four square holes. Each pair of guiding members includes two guiding card plates. The square hole is located between the two guiding card plates of the corresponding guiding member. A guiding long hole is opened on each guiding card plate. The elastic spring rod frame is installed on the four pairs of guiding members, and the elastic spring rod frame passes through the guiding long holes of all the guiding card plates;

[0008] The elastic spring rod holder has a left-right symmetric structure. The elastic spring rod holder includes a middle connecting rod and two side rods. The middle connecting rod is connected to the ends of the two side rods. Each side rod consists of an inclined rod part and a straight rod part. Among them, two pairs of guide parts are arranged on the middle connecting rod, and the other two pairs of guide parts are respectively arranged on the straight rod parts of the two side rods. Two stoppers are also fixed in the cavity of the vehicle frame. The two side rods are located between the two stoppers, and the inclined rod parts of the two side rods respectively abut against the two stoppers;

[0009] The four hook bodies respectively form a clamping structure with the middle connecting rod and the straight rod parts of the two side rods;

[0010] Two round rods are fixed on the middle connecting rod. Two through holes are opened at the rear side of the vehicle frame for the two round rods to pass through. Handles are fixed at the ends of the two round rods.

[0011] Furthermore, a retaining ring and a return spring are arranged on each round rod. The retaining ring and the return spring are located in the cavity of the vehicle frame. The return spring is connected between the retaining ring and the inner wall of the vehicle frame.

[0012] Furthermore, a rubber sleeve is arranged on the handle.

[0013] Furthermore, the vehicle frame includes a vehicle frame box and a cover plate. The four sides of the cover plate are respectively fixed on the top of the vehicle frame box by bolts.

[0014] Furthermore, a connecting sleeve is fixed on the middle connecting rod. The connecting sleeve has internal threads. The two ends of the round rod are respectively installed on the connecting sleeve and the handle by threading;

[0015] The two ends of the guide card plate are respectively fixed on the bottom of the vehicle frame box by screws.

[0016] A small material transport vehicle includes the locking structure of the hopper of the small material transport vehicle described in any one of the above.

[0017] Furthermore, in the small material transport vehicle described above, an oscillating shaking-off mechanism is installed at the rear side of the hopper. The oscillating shaking-off mechanism includes a lining plate and an outer shell body. The lining plate and the outer shell body are both fixed at the rear side of the hopper, and the outer shell body covers the lining plate. A motor is installed in the outer shell body. A disc is installed on the main shaft of the motor. A number of groups of slinging blocks are connected to the outer periphery of the disc. The slinging blocks are connected to the outer periphery of the disc by two short chains. The slinging blocks have outer arc surfaces, and wear-resistant rubber layers are arranged on the outer arc surfaces of the slinging blocks;

[0018] The motor drives the disc to rotate. When the disc rotates, it drives all the slinging blocks to rotate. When the slinging blocks rotate along the circumferential direction of the disc, the wear-resistant rubber layers on the outer arc surfaces of the slinging blocks can impact the lining plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: When the hopper of the present invention is placed on the vehicle frame, it can automatically form a clamped state with the elastic spring rod frame without additional manual intervention, making the operation simpler and reducing the possibility of human error; by pushing the handle, the locking between the hopper and the vehicle frame can be easily released, enabling the hopper to be flipped for discharging, which is more convenient to operate; in addition, the elastic spring rod frame designed in the present invention allows it to deform to accommodate the entry of the hook body and return to its original state after the hook body is completely inserted, ensuring that the hopper is firmly installed on the vehicle frame; the elastic spring rod frame adopts a symmetrical structure, which helps to evenly distribute the force and improve the overall stability; in addition, in order to prevent materials from adhering to the inner wall of the hopper, the present invention also designs an oscillating shaking mechanism, which uses a motor to drive the flywheel to rotate and impact the lining plate to generate vibration, thereby helping to remove the residual materials.

[0020] The present invention not only solves the problems of complex and vulnerable traditional locking structures, but also improves the user experience and the practicality of the equipment by introducing automation and modular elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 It is a schematic structural diagram of the hopper of a small material transport vehicle with a locking structure;

[0023] Figure 2 It is a process diagram of the hopper of a small material transport vehicle with a locking structure during discharging;

[0024] Figure 3 It is a schematic structural diagram of the bottom of the hopper of a small material transport vehicle;

[0025] Figure 4 It is a top view of the vehicle frame of a small material transport vehicle;

[0026] Figure 5 It is an internal schematic diagram of the vehicle frame of a small material transport vehicle;

[0027] Figure 6 It is a state diagram of the hook body not connected to the elastic spring rod frame;

[0028] Figure 7 It is a state diagram of the hook body in contact with the elastic spring rod frame after being inserted into the square hole;

[0029] Figure 8 It is a state diagram of the hook body connected to the elastic spring rod frame;

[0030] Figure 9 It is a schematic structural diagram of the oscillating shaking mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention will be further described in detail below with reference to the embodiments.

[0033] As Figures 1-8 shown, Specific Embodiment 1 of the locking structure of the hopper of a small material transport vehicle provided by the present invention:

[0034] A locking structure of the hopper of a small material transport vehicle includes an elastic spring rod frame 1 and four groups of hook bodies 2. The four groups of hook bodies 2 are arranged at the bottom of the hopper 3 of the small material transport vehicle. The two hook bodies 2 located in the front are symmetrically arranged, and the two hook bodies 2 located in the rear are arranged side by side left and right (the hook bodies 2 are all arranged facing the rear, as Figure 3 shown), and the hook body 2 is a triangular structure;

[0035] The frame 4 of the small material transport vehicle is a plate structure. Four square holes 5 are opened on the upper surface of the frame 4 of the small material transport vehicle (as Figure 4 shown). The four square holes 5 correspond to the four hook bodies 2 at the bottom of the hopper 3. There is a cavity inside the frame 4 of the small material transport vehicle. When the hopper 3 is placed on the frame 4, the four hook bodies 2 are respectively inserted into the cavity inside the frame 4 through the four square holes 5;

[0036] As Figure 5 shown, the elastic spring rod frame 1 is located in the cavity of the frame 4. Four pairs of guiding members are fixed in the cavity. The four pairs of guiding members are respectively located directly below the four square holes 5. Each pair of guiding members includes two guiding clamping plates 6. The square hole 5 is located between the two guiding clamping plates 6 of the corresponding guiding member. A guiding long hole 7 is opened on each guiding clamping plate 6. The elastic spring rod frame 1 is installed on the four pairs of guiding members, and the elastic spring rod frame 1 passes through the guiding long holes 7 of all the guiding clamping plates 6;

[0037] The elastic spring rod frame 1 is a left-right symmetric structure. The elastic spring rod frame 1 includes a middle connecting rod 8 and two side rods 9. The middle connecting rod 8 is connected to the ends of the two side rods 9. Each side rod 9 is composed of an inclined rod portion 10 and a straight rod portion 11. Two pairs of guiding members are arranged on the middle connecting rod 8, and the other two pairs of guiding members are respectively arranged on the straight rod portions 11 of the two side rods. Two stop columns 12 are also fixed in the cavity of the frame 4. The two side rods are located between the two stop columns 12, and the inclined rod portions 10 of the two side rods respectively abut against the two stop columns 12;

[0038] The four hook bodies 2 respectively form a snap-fit ​​structure with the middle connecting rod 8 and the straight rod parts 11 of the two side rods, and the snap-fit ​​structure is mainly used to prevent the hook body 2 from slipping out of the square hole 5, so that the hopper 3 is stably mounted on the frame 4;

[0039] Two round rods 13 are fixed on the middle connecting rod 8, and two through holes are opened on the rear side of the frame 4, and the two through holes are for the two round rods 13 to pass through. Handles 14 are fixed at the ends of the two round rods 13, and rubber sleeves 15 are arranged on the handles 14; each round rod 13 is provided with a retaining ring 16 and a return spring 17, and the retaining ring 16 and the return spring 17 are located in the cavity of the frame 4, and the return spring 17 is connected to the retaining ring 16 and the inner wall of the frame 4.

[0040] When the locking structure of the hopper of a small material transport vehicle of the present invention is in use, the hopper 3 is firmly connected to the frame 4 through the locking structure. At this time, the hopper 3 is in a locked state, and the hopper 3 cannot be turned over alone for unloading. When unloading is required, the handle 14 is pushed into the frame 4, the return spring 17 is compressed, and the handle 14 pushes the middle connecting rod 8 through the two round rods 13. The middle connecting rod 8 moves forward and can be outwardly disengaged from the two hook bodies 2. At the same time, the middle connecting rod 8 pushes the two side rods to move forward. Since the inclined rod portion 10 is in an inclined state and the inclined rod portion 10 is in contact with the blocking column 12, When the inclined rod 10 moves forward, the blocking column 12 and the inclined rod 10 generate a force, the inclined rod 10 is deformed, and the inclined rod 10 pushes the straight rod 11 to move toward the middle, and the straight rod 11 can be disengaged from the hook body 2. The elastic spring rod frame 1 cannot restrict the hook body 2, and the hook body 2 can be disengaged from the square hole 5, releasing the locking state of the hopper 3 and the frame 4. At this time, the hopper 3 can be turned over for unloading; in addition, after releasing the handle 14, the elastic spring rod frame 1 returns to its initial state under the action of its own deformation elasticity, and the handle 14 is reset under the elastic force of the reset spring 17.

[0041] When the hopper 3 is put down after unloading, the four hook bodies 2 at the bottom of the hopper 3 are respectively inserted into the four square holes 5. Figures 6-8 As shown in FIG. 1 , it is a process diagram of the hook body 2 contacting the straight rod portion 11 of the elastic spring rod frame 1, as shown in FIG. Figure 6 As shown, at this time, the hook body 2 is ready to enter the square hole 5 and does not contact the straight rod portion 11. Figure 7 As shown, the hook body 2 is inserted into the square hole 5 and contacts the straight rod 11. Since the hook body 2 is a triangular structure, the hook body 2 can push the straight rod 11 in the horizontal direction when it moves downward, and the elastic spring rod frame 1 is deformed, as shown in FIG. Figure 8 As shown, the hook body 2 completely enters the cavity, and the straight rod portion 11 is reset under deformation elasticity to form a locking state with the hook body 2. At this time, the hopper 3 is locked on the frame 4. The above process does not require manual operation. The locking action is automatically completed during the lowering of the hopper 3, which is easy to use.

[0042] As Figure 4 and Figure 5 shown, Specific Embodiment 2 of a locking structure for a hopper of a small material transporter provided by the present invention:

[0043] Different from Specific Embodiment 1, the above locking structure relies on the deformation elasticity of the elastic spring rod frame 1. The elastic spring rod frame 1 repeatedly bears periodic loads. Over time, the elastic spring rod frame 1 will suffer fatigue damage, resulting in a decline in its elastic performance. Therefore, the above vehicle frame 4 can be improved to make it convenient for disassembly to replace the internal elastic spring rod frame 1. Specifically: The vehicle frame 4 includes a vehicle frame box 18 and a cover plate 19. The four sides of the cover plate 19 are respectively fixed on the top of the vehicle frame box 18 by bolts. By removing the bolts, the cover plate 19 can be opened, and the elastic spring rod frame 1 inside the vehicle frame box 18 is exposed to view.

[0044] A connecting sleeve 20 is fixed on the middle connecting rod 8. The connecting sleeve 20 has internal threads. Both ends of the round rod 13 are installed on the connecting sleeve 20 and the handle 14 by threading; Both ends of the guiding clamping plate 6 are respectively fixed on the bottom of the vehicle frame box 18 by screws. By unscrewing and removing the round rod 13 and the screws, the old elastic spring rod frame 1 can be taken out, and the new elastic spring rod frame 1 can be installed.

[0045] As Figure 1 and Figure 9 shown, Specific Embodiment 3 of a locking structure for a hopper of a small material transporter provided by the present invention:

[0046] A small material transporter in this embodiment includes the above locking structure and an oscillating shaking mechanism. When the hopper 3 discharges materials, there will be materials adhering to the inner wall of the hopper 3. The oscillating shaking mechanism is mainly used to oscillate and strike the hopper 3 to make the hopper 3 vibrate, so as to shake off the materials adhering to the inner wall of the hopper 3;

[0047] The oscillating shaking mechanism is installed at the rear side of the hopper 3. The oscillating shaking mechanism includes a lining plate 21 and an outer shell 22. The lining plate 21 and the outer shell 22 are both fixed on the rear side of the hopper 3, and the outer shell 22 covers the lining plate 21. A motor 23 is installed inside the outer shell 22. A disc 24 is installed on the main shaft of the motor 23. A plurality of groups of slinging blocks 25 are connected to the outer circumference of the disc 24. The slinging blocks 25 are connected to the outer circumference of the disc 24 by two short chains 26. The slinging blocks 25 have outer arc surfaces, and wear-resistant rubber layers 27 are arranged on the outer arc surfaces of the slinging blocks 25;

[0048] The motor 23 drives the disc 24 to rotate. When the disc 24 rotates, it drives all the slinging blocks 25 to rotate. When the slinging blocks 25 rotate along the circumferential direction of the disc 24, the wear-resistant rubber layers 27 on the outer arc surfaces of the slinging blocks 25 can strike the lining plate 21, and the hopper 3 vibrates strongly, so as to shake off the materials adhering to the inner wall.

[0049] It should be noted that in this text, terms such as "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking structure for a hopper of a small material transport vehicle, characterized in that: It includes an elastic spring rod frame and four groups of hook bodies, the four groups of hook bodies are arranged at the bottom of the hopper of the small material transport vehicle, the two hook bodies at the front are symmetrically arranged, and the two hook bodies at the rear are arranged side by side, and the hook bodies are triangular structures; The frame of the small material transport vehicle is a plate structure, and four square holes are opened on the upper surface of the frame of the small material transport vehicle, and the four square holes correspond to the four hook bodies at the bottom of the hopper. The frame of the small material transport vehicle has a cavity inside, and when the hopper is placed on the frame, the four hook bodies are respectively inserted into the cavity inside the frame through the four square holes; The elastic spring rod frame is located in the cavity of the frame, and four pairs of guide members are fixed in the cavity. The four pairs of guide members are respectively located directly below the four square holes. Each pair of guide members includes two guide card plates. The square hole is located between the two guide card plates of the corresponding guide member. Each guide card plate is provided with a guide long hole. The elastic spring rod frame is installed on the four pairs of guide members, and the elastic spring rod frame passes through the guide long holes of all the guide card plates. The elastic spring rod frame is a bilaterally symmetrical structure, and includes a middle connecting rod and two side rods, wherein the middle connecting rod is connected to the ends of the two side rods, and each side rod is composed of an oblique rod portion and a straight rod portion, wherein two pairs of guide members are arranged on the middle connecting rod, and the other two pairs of guide members are respectively arranged on the straight rod portions of the two side rods, and two stopper columns are also fixed in the cavity of the frame, wherein the two side rods are located between the two stopper columns, and the oblique rod portions of the two side rods are respectively against the two stopper columns; The four hook bodies respectively form a clamping structure with the middle connecting rod and the straight rod parts of the two side rods; Two round rods are fixed on the middle connecting rod, and two through holes are arranged on the rear side of the frame for the two round rods to pass through. Handles are fixed at the ends of the two round rods.

2. The locking structure of the hopper of a small material transport vehicle according to claim 1, characterized in that: A retaining ring and a return spring are arranged on each round rod. The retaining ring and the return spring are located in the cavity of the frame. The return spring is connected to the retaining ring and the inner wall of the frame.

3. The locking structure of the hopper of a small material transport vehicle according to claim 1, characterized in that: A rubber sleeve is arranged on the handle.

4. The locking structure of the hopper of a small material transport vehicle according to claim 1, characterized in that: The vehicle frame comprises a frame box and a cover plate, and the four sides of the cover plate are respectively fixed to the top of the frame box by bolts.

5. The locking structure of the hopper of a small material transport vehicle according to claim 4, characterized in that: A connecting sleeve is fixed on the middle connecting rod, the connecting sleeve has an internal thread, and the two ends of the round rod are respectively installed on the connecting sleeve and the handle by means of threads; The two ends of the guide clamping plate are respectively fixed to the bottom of the frame box by screws.

6. A small material transport vehicle, characterized in that: A locking structure for a hopper of a small material transport vehicle comprising the locking structure as described in any one of claims 1-5.

7. A small material transport vehicle according to claim 6, characterized in that: An oscillating and shaking-off mechanism is installed at the rear side of the hopper, and the oscillating and shaking-off mechanism includes a lining plate and an outer shell, both of which are fixed at the rear side of the hopper, and the outer shell cover is arranged on the lining plate, and a motor is installed in the outer shell, and a disc is installed on the main shaft of the motor, and a plurality of groups of swing blocks are connected to the outer periphery of the disc, and the swing blocks are connected to the outer periphery of the disc through two short chains, and the swing blocks have an outer arc surface, and the outer arc surface of the swing blocks is provided with a wear-resistant rubber layer; The motor drives the disc to rotate, and when the disc rotates, all the swing blocks are driven to rotate. When the swing blocks rotate along the circumferential direction of the disc, the wear-resistant rubber layer on the outer arc surface of the swing blocks can hit the lining plate.

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