A new type of mining flatbed truck

Abstract

This utility model provides a novel mining flatbed truck, including a cover plate body and a frame. The cover plate body is disposed on the upper surface of the frame, and four track wheel rotating assemblies are symmetrically arranged on the lower surface of the frame. This utility model uses four track wheel rotating assemblies to achieve one wheel per axle. The double-rimmed track wheels have double rims, so that the double-rimmed track wheels make near-horizontal curved contact with the track, which is beneficial to stable operation and extends the service life of the double-rimmed track wheels. The two rotating fixing mechanisms within the four track wheel rotating assemblies can assist the double-rimmed track wheels to rotate independently within a small range. The short axle structure of the four track wheel rotating assemblies can adapt to curves with smaller turning radii. The independent support of the four double-rimmed track wheels is more conducive to maintaining contact with the track when passing through triangular sections of track with yin and yang deformation, making the operation more flexible and thus significantly reducing the occurrence of derailment accidents.

Description

Technical Field

[0001] This utility model relates to the technical field of mining flatbed trucks, and in particular to a new type of mining flatbed truck. Background Technology

[0002] Mining flatbed cars are rail vehicles used for underground mining and industrial site transportation. They are mainly used for loading and transporting equipment or materials in underground mine roadways and on the surface.

[0003] The existing flatbed wheel axle assembly consists of one axle and two wheels, each with a single-sided rim. The wheels make short, tapered contact with the track. The two wheels are mounted at both ends of the axle. The wheel axle assembly is connected to the flatbed frame using two clamps or axle seats. Therefore, each axle experiences two shear surfaces, resulting in four shear surfaces for the entire vehicle axle assembly. During operation, wheel bounce is prone to occur, causing uneven wheel wear, such as deep grooves or localized flattening on the tread surface, exceeding roundness specifications. When traversing tracks with convex and concave deformation, the long-axle double-wheel assembly is prone to causing the lower-lying wheel to detach from the track, leading to derailment. Traditional wheel-track contact with the track via a short, tapered line results in concentrated stress points, which is detrimental to stable operation and shortens wheel lifespan.

[0004] The most frequent locations for derailment accidents in mine auxiliary transportation are switch points and the junctions between tracks. The derailment usually occurs when the wheels climb the track first. The harmful space at the switch point, the switch guardrail, the center rail, the single-sided flange of the traditional wheels, and the lateral impact and compression between vehicles when running on this section of the track cause the wheels to climb the track first and then derail. To address this, a new type of mine flatbed car is proposed. Utility Model Content

[0005] In view of this, the present invention provides a novel mining flatbed truck to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: A novel mining flatbed car includes a cover plate body and a frame. The cover plate body is disposed on the upper surface of the frame. Four track wheel rotating assemblies are symmetrically arranged on the lower surface of the frame. Two bumper hook assemblies are symmetrically arranged on the outer wall of the frame. Each track wheel rotating assembly includes a double-rimmed track wheel, two rotating fixing mechanisms, a support wheel axle, two steel ball bearings, a bearing positioning step, and two locking blocks. The two rotating fixing mechanisms are symmetrically arranged on the lower surface of the frame, and the two locking blocks are in contact with the corresponding rotating fixing mechanisms. The two locking blocks are symmetrically arranged on adjacent sides at both ends of the support wheel axle, and the two locking blocks are integrally formed with the support wheel axle. The bearing positioning step is disposed on the support wheel axle, and the bearing positioning step and the support wheel axle are integrally formed. The inner walls of the two steel ball bearings are symmetrically attached to the outer wall of the bearing positioning step, and the outer walls of the two steel ball bearings are attached to the inner wall of the double-rimmed track wheel.

[0007] In some embodiments, the rotating fixing mechanism includes a mounting base, a movable block, and two return springs. The mounting base is disposed on the lower surface of the vehicle frame, and the outer wall of the movable block is in contact with the inner wall of the mounting base. The adjacent ends of the two return springs are symmetrically disposed on the outer wall of the movable block, and the opposing ends of the two return springs are symmetrically disposed on the inner wall of the mounting base. The inner wall of the mounting base has a movable through hole, and the two locking blocks pass through the corresponding movable through hole. A locking groove is provided on one side of the movable block, and the outer wall of the locking block is in contact with the inner wall of the locking groove.

[0008] In some embodiments, the bumper hook assembly includes a bumper hook seat, a bumper pin, a ring pin handle, and a plurality of fixing units, wherein the plurality of fixing units are evenly disposed on the bumper hook seat and the plurality of fixing units are evenly disposed on the vehicle frame; the inner top wall and the inner top wall of the bumper hook seat are both provided with pin through holes, and the outer wall of the bumper pin is all attached to the inner wall of the pin through hole, and the ring pin handle is disposed on the upper surface of the bumper pin.

[0009] In some embodiments, the fixing unit includes a hexagonal head bolt, a hexagonal nut, a flat washer, and a spring washer. The inner wall of the bumper hook seat is uniformly provided with second circular through holes, and the outer wall of the frame is uniformly provided with third circular through holes. The hexagonal head bolt passes sequentially through the corresponding second and third circular through holes, and the inner wall of the hexagonal nut is threaded to the outer wall of the hexagonal head bolt. The flat washer and the spring washer are fitted onto the outer wall of the hexagonal head bolt, and the flat washer and the spring washer are in contact. The side of the flat washer away from the spring washer is in contact with the hexagonal nut, and the side of the spring washer away from the flat washer is in contact with the frame.

[0010] In some embodiments, the inner wall of the double-rimmed track wheel is symmetrically fitted with two bearing end caps, and the support wheel shaft passes through the two bearing end caps.

[0011] In some embodiments, a sealing cover plate is attached to the inner wall of the mounting base, a first circular through hole is uniformly formed on the outer wall of the sealing cover plate, and a threaded groove is uniformly formed on the outer wall of the mounting base. A fastening bolt is attached to the inner wall of the first circular through hole, and the outer wall of the fastening bolt is threadedly connected to the inner wall of the corresponding threaded groove.

[0012] In some embodiments, a first connecting ring is fastened to the inner wall of the ring pin handle, a connecting rope is provided on the outer wall of the first connecting ring, a second connecting ring is provided at the end of the connecting rope away from the first connecting ring, a U-shaped connecting seat is provided on the outer wall of the bumper hook seat, and the second connecting ring is fastened to the inner wall of the U-shaped connecting seat.

[0013] In some embodiments, rope hooks are uniformly arranged on the lower surface of the vehicle frame.

[0014] The present invention has the following advantages due to the adoption of the above technical solution: I. This utility model utilizes a double-rimmed track wheel, a supporting axle, and two ball bearings within a four-track wheel rotating assembly, in conjunction with two rotating fixing mechanisms, to achieve one wheel per axle. The double-rimmed track wheel has two rims, resulting in a near-horizontal curved contact between the double-rimmed track wheel and the track. This ensures smoother rotation and more even wear of the double-rimmed track wheel during operation. The limiting function of the rims on both sides of the double-rimmed track wheel contributes to stable operation and extends its service life. The two rotating fixing mechanisms within the four-track wheel rotating assembly can assist the double-rimmed track wheel in independent small-range rotation. The short-axis structure of the four-track wheel rotating assembly can adapt to curves with smaller turning radii. The independent support of the four double-rimmed track wheels helps maintain contact with the track when traversing triangular sections of track with yin-yang deformation, resulting in more flexible operation and significantly reducing the occurrence of derailment accidents.

[0015] Second, this utility model, through the independent support of four track wheel rotating components, allows for better support of the cover plate and frame when replacing the double-rimmed track wheel on a single track wheel rotating component, while the double-rimmed track wheels on the other track wheel rotating components provide better support. This makes it safer and easier to replace the double-rimmed track wheels on a single track wheel rotating component.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the present invention; Figure 2 This utility model Figure 1 AA side section structural diagram; Figure 3 This utility model Figure 2 Enlarged structural diagram of region B; Figure 4 This utility model Figure 1 CC side section structural diagram; Figure 5 This utility model Figure 4 Enlarged side section view of region D; Figure 6 This is a structural diagram of the track wheel rotation assembly of this utility model; Figure 7 This is a diagram showing the internal structure of the track wheel rotation assembly of this utility model; Figure 8 This utility model Figure 7 Enlarged structural diagram of region E; Figure 9 This is a three-dimensional structural diagram of the present invention; Figure 10 This utility model Figure 9 Enlarged structural diagram of region F; Figure 11 This utility model Figure 9 Side sectional view; Figure 12 This utility model Figure 11 Enlarged structural diagram of region G.

[0019] Reference numerals: 1. Cover plate body; 2. Frame; 3. Track wheel rotating assembly; 4. Collision hook assembly; 5. Rope hook; 6. Sealing cover plate; 7. Bearing end cover plate; 8. Movable through hole; 9. Slot; 10. Fastening bolt; 11. Threaded groove; 12. First circular through hole; 13. First connecting ring; 14. U-shaped connecting seat; 15. Second connecting ring; 16. Connecting rope; 17. Pin through hole; 18. Second circular through hole; 19. 30. Third circular through hole; 31. Double-rimmed track wheel; 32. Rotation and fixing mechanism; 33. Support wheel axle; 34. Steel ball bearing; 35. Bearing positioning step; 46. Locking block; 47. Collision hook seat; 48. Collision pin; 49. Circular pin handle; 40. Fixing unit; 310. Mounting base; 311. Moving block; 312. Return spring; 430. Hex head bolt; 431. Hex nut; 432. Flat washer; 433. Spring washer. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] It is important to note that terms such as "first," "second," "symmetric," "array," "set in," and "set with" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0022] In this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the accompanying drawings and specific circumstances.

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-12 As shown, this utility model embodiment provides a novel mining flatbed truck, including a cover plate body 1 and a frame 2. The cover plate body 1 is disposed on the upper surface of the frame 2. Four track wheel rotating assemblies 3 are symmetrically arranged on the lower surface of the frame 2. Two bumper hook assemblies 4 are symmetrically arranged on the outer wall of the frame 2. The track wheel rotating assembly 3 includes a double-rimmed track wheel 30, two rotating fixing mechanisms 31, a support wheel axle 32, two steel ball bearings 33, a bearing positioning step 34, and two locking blocks 35. The two rotating fixing mechanisms 31 are symmetrically arranged on the lower surface of the frame 2. The surface is covered, and the two locking blocks 35 are attached to the corresponding rotating fixing mechanism 31. The two locking blocks 35 are symmetrically arranged on the adjacent side at both ends of the support wheel shaft 32, and the two locking blocks 35 and the support wheel shaft 32 are integrally formed. The bearing positioning step 34 is arranged on the support wheel shaft 32, and the bearing positioning step 34 and the support wheel shaft 32 are integrally formed. The inner walls of the two steel ball bearings 33 are symmetrically attached to the outer wall of the bearing positioning step 34, and the outer walls of the two steel ball bearings 33 are attached to the inner wall of the double-rimmed track wheel 30. The inner bottom wall of the double-rimmed track wheel 30 is attached to the track.

[0025] In this embodiment, specifically, there is a gap between the double-rimmed track wheel 30 and the track, which facilitates the double-rimmed track wheel 30 to make slight turns on the track.

[0026] In this embodiment, specifically, the rotating fixing mechanism 31 includes a mounting base 310, a moving block 311, and two return springs 312. The mounting base 310 is disposed on the lower surface of the vehicle frame 2, and the outer wall of the moving block 311 is attached to the inner wall of the mounting base 310. The adjacent ends of the two return springs 312 are symmetrically disposed on the outer wall of the moving block 311, and the opposing ends of the two return springs 312 are symmetrically disposed on the inner wall of the mounting base 310. The inner wall of the mounting base 310 has a movable through hole 8. Two locking blocks 35 pass through corresponding movable through holes 8, and a locking groove 9 is provided on one side of the movable block 311. The outer wall of the locking block 35 is attached to the inner wall of the locking groove 9. With the above arrangement, the locking block 35 moves in the locking groove 9, which facilitates the locking block 35 to drive the movable block 311 to move in the mounting base 310. The return spring 312 is used to reset the movable block 311. The locking block 35 moves in the movable through hole 8, which is used to facilitate the locking block 35 to drive the support wheel shaft 32 and the double-rimmed track wheel 30 to make micro-turns.

[0027] In this embodiment, specifically, the bumper hook assembly 4 includes a bumper hook seat 40, a bumper pin 41, a ring pin handle 42, and several fixing units 43. The fixing units 43 are evenly arranged on the bumper hook seat 40 and the frame 2. The inner top wall and the inner top wall of the bumper hook seat 40 are provided with pin through holes 17, and the outer wall of the bumper pin 41 is attached to the inner wall of the pin through hole 17. The ring pin handle 42 is provided on the upper surface of the bumper pin 41. After the connecting bumper accessory is adapted to the bumper hook seat 40 through the above arrangement, the two are connected by the bumper pin 41 and the pin through hole 17, which facilitates the connection of several frames 2 and the front of the vehicle. The fixing units 43 are used to fix the bumper hook seat 40 on the corresponding frame 2.

[0028] In this embodiment, specifically, the fixing unit 43 includes a hexagonal head bolt 430, a hexagonal nut 431, a flat washer 432, and a spring washer 433. The inner wall of the bumper hook seat 40 is uniformly provided with second circular through holes 18, and the outer wall of the frame 2 is uniformly provided with third circular through holes 19. The hexagonal head bolt 430 passes through the corresponding second circular through hole 18 and the corresponding third circular through hole 19 in sequence. The inner wall of the hexagonal nut 431 is threaded to the outer wall of the hexagonal head bolt 430. The flat washer 432 and the spring washer 433 are fitted onto the outer wall of the hexagonal head bolt 430, and the flat washer 432 and the spring washer 433 are... Washer 433 is fitted together, and the side of flat washer 432 away from spring washer 433 is fitted together with hexagonal nut 431. The side of spring washer 433 away from flat washer 432 is fitted together with frame 2. With the above arrangement, hexagonal head bolt 430 is passed through the corresponding second circular through hole 18 and the corresponding third circular through hole 19 in sequence. Then, flat washer 432 and spring washer 433 are fitted onto the outer wall of hexagonal head bolt 430. Then, hexagonal nut 431 is rotated on hexagonal head bolt 430 and pressed flat washer 432 and spring washer 433, thereby fixing bumper hook seat 40 to frame 2.

[0029] In this embodiment, specifically, two bearing end cover plates 7 are symmetrically attached to the inner wall of the double-rimmed track wheel 30, and the support wheel axle 32 passes through the two bearing end cover plates 7. The bearing end cover plates 7 are provided to prevent external contaminants from damaging the ball bearing 33 and to enhance the service life of the ball bearing 33.

[0030] In this embodiment, specifically, a sealing cover plate 6 is attached to the inner wall of the mounting base 310, and a first circular through hole 12 is evenly provided on the outer wall of the sealing cover plate 6. A threaded groove 11 is evenly provided on the outer wall of the mounting base 310, and a fastening bolt 10 is attached to the inner wall of the first circular through hole 12. The outer wall of the fastening bolt 10 is threadedly connected to the inner wall of the corresponding threaded groove 11. With the above arrangement, the fastening bolt 10 passes through the first circular through hole 12 and rotates in the threaded groove 11, which facilitates the installation and removal of the sealing cover plate 6 onto the mounting base 310. The sealing cover plate 6 is used to ensure the safe use of the moving block 311 and the return spring 312.

[0031] In this embodiment, specifically, the inner wall of the ring pin handle 42 is fastened with a first connecting ring 13, the outer wall of the first connecting ring 13 is provided with a connecting rope 16, and the end of the connecting rope 16 away from the first connecting ring 13 is provided with a second connecting ring 15. The outer wall of the bumper hook seat 40 is provided with a U-shaped connecting seat 14, and the second connecting ring 15 is fastened to the inner wall of the U-shaped connecting seat 14. Through the combined use of the first connecting ring 13, the connecting rope 16, the U-shaped connecting seat 14 and the second connecting ring 15, it is convenient to connect the ring pin handle 42 and the bumper pin 41 to the bumper hook seat 40, and avoid the bumper pin 41 from being lost.

[0032] In this embodiment, specifically, rope hooks 5 are evenly arranged on the lower surface of the frame 2. The rope hooks 5 are used to fix the binding rope, thereby fixing the goods above the cover plate body 1.

[0033] In this embodiment, specifically, the dimensions and parameters of the parts can be adjusted according to different loads and carriers, thereby enabling the design and manufacture of various mining vehicles such as mining cars, material cars, and container cars of different tonnages. Therefore, this application is not limited to a single product of this example, but rather represents a class of products that can be designed and manufactured using the design methods and concepts provided by this application. When this utility model is in operation: relevant personnel move the four double-rimmed track wheels 30 to the side adjacent to the two mounting seats 310, and then move the mounting seats 310, the moving block 311 and the two return springs 312 to facilitate the passing of the locking block 35 through the movable through hole 8 and into the locking groove 9. After that, the mounting seat 310 is installed on the frame 2.

[0034] After the connecting head accessory is matched with the connecting head hook seat 40, the two are connected by the connecting head pin 41. Then, the cover plate body 1 and the frame 2 are moved by traction. The frame 2 drives the four track wheel rotating components 3 to move on the track. When the frame 2 turns, the track will drive the double-rim track wheel 30 to turn. The double-rim track wheel 30 drives the support wheel axle 32 and the two locking blocks 35 to turn. The locking blocks 35 drive the moving block 311 to make a slight turn. The moving block 311 drives the two return springs 312 to deform. The double-rimmed track wheel 30 has two rims, which makes the contact between the double-rimmed track wheel 30 and the track a near-horizontal curve. During operation, the double-rimmed track wheel 30 rotates more smoothly. The rims on both sides of the double-rimmed track wheel 30 are limited, so that the double-rimmed track wheel 30 fits tightly against the track. When the frame 2 needs to go straight, the elastic potential energy of the return spring 312 drives the moving block 311 to reset. The moving block 311 drives the two locking blocks 35 to reset. The locking blocks 35 drive the support wheel axle 32, the double-rimmed track wheel 30 and the steel ball bearing 33 to reset.

[0035] Because of the independent support of the four double-rimmed track wheels 30, when a single double-rimmed track wheel 30 needs to be replaced, the relevant personnel only need to remove the corresponding rotating fixing mechanism 31 from the frame 2. The rotating fixing mechanism 31 drives the double-rimmed track wheel 30, the support wheel axle 32, the steel ball bearing 33, the bearing positioning step 34 and the locking block 35 to be removed, which facilitates the removal of the double-rimmed track wheel 30, the support wheel axle 32, the steel ball bearing 33, the bearing positioning step 34 and the locking block 35 from the rotating fixing mechanism 31, making it easy to replace the double-rimmed track wheel 30. The double-rimmed track wheels 30 on other track wheel rotating components 3 can better support the cover plate body 1 and the frame 2.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel mining flatbed car, comprising a cover plate body (1) and a frame (2), characterized in that: The cover plate body (1) is disposed on the upper surface of the frame (2). Four track wheel rotating assemblies (3) are symmetrically arranged on the lower surface of the frame (2). Two bumper hook assemblies (4) are symmetrically arranged on the outer wall of the frame (2). The track wheel rotating assembly (3) includes a double-rimmed track wheel (30), two rotating fixing mechanisms (31), a support wheel axle (32), two steel ball bearings (33), a bearing positioning step (34), and two locking blocks (35). The two rotating fixing mechanisms (31) are symmetrically arranged on the lower surface of the frame (2), and the two locking blocks (35) are in contact with the corresponding rotating fixing mechanism (31); The two locking blocks (35) are symmetrically arranged on the adjacent sides of the support wheel shaft (32), and the two locking blocks (35) and the support wheel shaft (32) are integrally formed; The bearing positioning step (34) is disposed on the support wheel shaft (32), and the bearing positioning step (34) and the support wheel shaft (32) are integrally formed; The inner walls of the two ball bearings (33) are symmetrically attached to the outer wall of the bearing positioning step (34), and the outer walls of the two ball bearings (33) are attached to the inner wall of the double-rimmed track wheel (30).

2. The novel mining flatbed truck according to claim 1, characterized in that: The rotating fixing mechanism (31) includes a mounting base (310), a moving block (311), and two return springs (312), wherein, The mounting base (310) is disposed on the lower surface of the frame (2), and the outer wall of the movable block (311) is attached to the inner wall of the mounting base (310); The two return springs (312) are symmetrically arranged on the outer wall of the moving block (311) at their adjacent ends, and on the inner wall of the mounting base (310) at their opposing ends. The inner wall of the mounting base (310) is provided with a movable through hole (8), and the two locking blocks (35) pass through the corresponding movable through hole (8). A slot (9) is provided on one side of the movable block (311), and the outer wall of the card block (35) is attached to the inner wall of the slot (9).

3. The novel mining flatbed truck according to claim 1, characterized in that: The contact hook assembly (4) includes a contact hook base (40), a contact pin (41), a ring pin handle (42), and several fixing units (43), wherein, Several fixing units (43) are evenly arranged on the bumper hook seat (40), and several fixing units (43) are evenly arranged on the vehicle frame (2); The inner top wall and the inner top wall of the bumper hook seat (40) are provided with pin through holes (17), and the outer wall of the bumper pin (41) is attached to the inner wall of the pin through hole (17). The ring pin handle (42) is set on the upper surface of the bumper pin (41).

4. The novel mining flatbed truck according to claim 3, characterized in that: The fixing unit (43) includes a hexagonal head bolt (430), a hexagonal nut (431), a flat washer (432), and a spring washer (433), wherein, The inner wall of the bumper hook seat (40) is uniformly provided with a second circular through hole (18), and the outer wall of the frame (2) is uniformly provided with a third circular through hole (19). The hexagonal head bolt (430) passes through the corresponding second circular through hole (18) and the corresponding third circular through hole (19) in sequence, and the inner wall of the hexagonal nut (431) is threaded to the outer wall of the hexagonal head bolt (430); The flat washer (432) and the spring washer (433) are fitted onto the outer wall of the hexagonal head bolt (430), and the flat washer (432) and the spring washer (433) are in contact with each other; The side of the flat washer (432) away from the spring washer (433) is in contact with the hexagonal nut (431), and the side of the spring washer (433) away from the flat washer (432) is in contact with the frame (2).

5. The novel mining flatbed truck according to claim 1, characterized in that: The inner wall of the double-rimmed track wheel (30) is symmetrically fitted with two bearing end caps (7), and the support wheel shaft (32) passes through the two bearing end caps (7).

6. The novel mining flatbed truck according to claim 2, characterized in that: The inner wall of the mounting base (310) is fitted with a sealing cover plate (6), and the outer wall of the sealing cover plate (6) is uniformly provided with a first circular through hole (12). The outer wall of the mounting base (310) is uniformly provided with a threaded groove (11). The inner wall of the first circular through hole (12) is fitted with a fastening bolt (10), and the outer wall of the fastening bolt (10) is threadedly connected to the inner wall of the corresponding threaded groove (11).

7. The novel mining flatbed truck according to claim 3, characterized in that: The inner wall of the ring pin handle (42) is fastened with a first connecting ring (13), the outer wall of the first connecting ring (13) is provided with a connecting rope (16), the end of the connecting rope (16) away from the first connecting ring (13) is provided with a second connecting ring (15), the outer wall of the bumper hook seat (40) is provided with a U-shaped connecting seat (14), and the second connecting ring (15) is fastened to the inner wall of the U-shaped connecting seat (14).

8. The novel mining flatbed truck according to claim 1, characterized in that: The lower surface of the frame (2) is uniformly provided with rope hooks (5).

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