Trackless hybrid electric traction single trailer vehicle

Abstract

The present invention relates to a trackless hybrid electric traction single-trailer vehicle. It solves the problem in the prior art that the linkage of the trailer connection device is poor when the trailer turns, which affects the stability. It includes a tractor head, the tractor head is connected to a front trailer, the end of the front trailer away from the tractor head is connected to a rear trailer, the front trailer is provided with at least one container section, and the rear trailer is provided with at least two containers, a rotating adaptive traction connection mechanism is provided between the front trailer and the rear trailer, and the container on the rear trailer is fixed to the two sides of the rear trailer by a plurality of detachable positioning connection devices, an electric traction seat is provided at the upper end of the tractor head, and the electric traction seat is closed by a sliding protective assembly. The advantages of the present invention are: adaptive rotation positioning of the rear trailer is realized, good stability, and improved turning safety.

Description

Technical Field

[0001] The invention relates to the technical field of tractors, and in particular to a trackless hybrid electric traction single-trailer vehicle. Background Art

[0002] Electric tractors are driven by motors and are used for transporting large quantities of goods, handling materials on assembly lines, and handling materials between large factories. Materials are often stored in trailers, and tractors are needed to solve the problem of efficient transportation of materials between different regions. At present, the main connection method between tractors and trailers is to use a hook for connection. The connection method is simple and fast, but in real life, the driver often drives the tractor to the corresponding destination and connects it to the trailer. In this process, the connection device at the rear of the tractor will be exposed. During driving, it is easy to collide, causing certain damage, and in severe cases, it will cause casualties. Moreover, this connection device and the tractor are fixedly connected together, which greatly limits the connection location of the tractor and the trailer and increases the difficulty of connection. In addition, the existing trailer connection device has poor linkage when the trailer turns, and it is difficult to achieve limited locking linkage turning. Moreover, the container is easy to move when turning, and the stability is poor.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses an electric tractor for towing a semi-trailer [CN202121382878.8], which includes a vehicle body, a movable groove is provided on the right side of the vehicle body, a fixed rod is fixedly connected in the movable groove, a rotating plate is rotatably sleeved on the fixed rod, the rotating plate is arranged to pass through the movable groove, a fixing device for the rotating plate is arranged in the movable groove, the rotating plate is provided with a through groove on the outside of the vehicle body, the two sides of the through groove are arranged to communicate with each other, the rotating plate is provided with a through hole on the outside of the vehicle body, the through hole and the through groove are arranged to communicate with each other, a connecting plate is provided in the through groove, the connecting plate passes through the through groove, the connecting plate is provided with a connecting hole in the through groove, the connecting hole and the through hole are arranged correspondingly, and a connecting rod is provided in the connecting hole.

[0004] The above scheme solves to a certain extent the problem that the connection device of the electric tractor in the prior art is difficult to connect and is prone to collision damage. However, the scheme still has many shortcomings, such as: the linkage is poor when the trailer turns, it is difficult to achieve limited locking linkage turning, and the container is easy to move when turning, and the stability is poor. Summary of the invention

[0005] The object of the present invention is to provide a trackless hybrid electric traction single-trailer vehicle with reasonable design and good stability in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: the trackless hybrid electric traction single-trailer vehicle comprises a tractor head, the tractor head is connected to a front trailer, the front trailer is connected to a rear trailer at one end away from the tractor head, the front trailer is provided with at least one container, and the rear trailer is provided with at least two containers, a rotating adaptive traction connection mechanism is provided between the front trailer and the rear trailer, and the container on the rear trailer is fixed to the two sides of the rear trailer by a plurality of detachable positioning connection devices, an electric traction seat is provided at the upper end of the tractor head, and the electric traction seat is closed by a sliding protective assembly. The rear trailer is connected by the rotating adaptive traction connection mechanism, so that the tractor head can realize adaptive locking of the rear trailer when turning, improve the linkage performance, and the setting of the detachable positioning connection device can effectively lock and position the container to avoid displacement during turning, with good stability and good use effect.

[0007] In the above-mentioned trackless hybrid electric traction single trailer vehicle, the rotating adaptive traction connection mechanism includes a rotating connection assembly, an electric locking structure is provided on the inner side of the rotating connection assembly in the circumferential direction, and the electric locking structure is connected to a control box arranged in the cab of the tractor head, and a rotating top pressing assembly is provided on the rotating connection assembly, which can apply a reverse force after being stressed. The rotating connection assembly connects the rear trailer and the front trailer, and when turning, the rotating top pressing assembly is used to perform adaptive rotating traction, and the electric locking structure is used to perform limit locking to achieve synchronous linkage turning and ensure turning stability.

[0008] In the above-mentioned trackless hybrid electric traction single trailer vehicle, the rotating connection assembly includes a traction connection seat, a positioning base plate is provided at the bottom of the traction connection seat, and a plug pin shaft that can rotate in the circumferential direction and has a rotation limit cover body at the end is plugged in the circumferential inner side of the traction connection seat, and the upper end surface of the positioning base plate has a pin shaft positioning groove, and a plug-in pressing structure that can be inserted into the circumferential inner side of the plug pin shaft and thus the rotating positioning structure located in the circumferential direction of the plug pin shaft is horizontally moved outward is provided in the positioning base plate and in the pin shaft positioning groove. The front trailer can tow the rear trailer by plugging and connecting the traction connection seat and the plug pin shaft, and the connection is convenient.

[0009] In the above-mentioned trackless hybrid electric traction single-trailer vehicle, the rotation positioning structure includes a linkage pressing seat with one end arranged in the pressing channel on the inner side of the plug pin shaft, the linkage pressing seat has a pressing cavity on the inner side of the circumference, and the diameter of the pressing cavity gradually decreases from bottom to top, the linkage pressing seat is provided with a plurality of arc-shaped sliding positioning parts arranged horizontally from top to bottom, and the inner wall of the traction connection seat is provided with an arc-shaped positioning groove for the arc-shaped sliding positioning part to be inserted, the plug pin shaft is provided with a guide groove on the inner side of the circumference and located at the upper end of the pressing channel, and the guide groove is provided with a reset spring capable of pulling the arc-shaped sliding positioning part to reset; the plug-in pressing structure includes a plug-in seat arranged vertically in the middle of the pin shaft positioning groove, the plug-in seat is provided with a conical pressing rod arranged corresponding to the pressing cavity in the circumference, and the upper end of the conical pressing rod is arranged against the positioning cavity on the inner side of the upper end of the pressing cavity in the circumference. The insertion of the plug-in pressing structure enables the sliding positioning part to be inserted into the arc-shaped positioning groove, which improves the connection stability without affecting the rotation.

[0010] The cam-shaped member is a vertically extending member formed on the circumferential surface of the second end of the second end of the second end of the second end, and the cam-shaped member is a horizontally extending member formed on the circumferential surface of the second end of the second end. The electric locking structure can lock the arc-shaped sliding positioning part to prevent further rotation, thereby achieving locking, thereby achieving direct linkage between the rear trailer and the front trailer.

[0011] In the above-mentioned trackless hybrid electric traction single-trailer vehicle, the rotating top pressure assembly includes an annular protrusion arranged at one end of the rotating limit cover body, a rotating top pressure sleeve is arranged on the circumferential outer side of the rotating limit cover body, and a top pressure structure is arranged between the rotating top pressure sleeve and the two sides of the rotating limit cover body, an arc-shaped rotating limit groove is arranged on the circumferential inner wall of the rotating top pressure sleeve body, and limit springs are arranged on the inner sides of both ends of the arc-shaped rotating limit groove, an arc-shaped plug-in interface is formed between the limit springs, and the annular protrusion is inserted into the arc-shaped plug-in interface and positioned by a connecting block arranged at the end of the limit spring. The rotating top pressure assembly is arranged to elastically limit the rotation stroke of the plug pin shaft. The greater the rotation amplitude, the greater the resistance, thereby improving the traction safety during turning.

[0012] In the above-mentioned trackless hybrid electric traction single-trailer vehicle, the top pressure structure includes strip grooves arranged on both sides of the rotating limit cover body, damping rods are axially arranged on the inner sides of the two ends of the strip groove, and damping blocks are arranged at the ends of the damping rods, the damping blocks are slidably arranged in the block slide grooves on the upper and lower sides of the strip groove, and fixed connection grooves are formed between the damping blocks, and a strip sliding limit block inserted in the fixed connection groove is arranged on the inner side of the rotating top pressure sleeve, and the strip sliding limit block is arranged in the positioning groove of the damping block.

[0013] In the above-mentioned trackless hybrid electric traction single trailer vehicle, the detachable positioning connection device includes container positioning components arranged longitudinally and located on both sides of the rear trailer, an assembly cross bar is inserted between the container positioning components, and a plug-in fixing structure is provided between the assembly cross bar and the plug-in hole at the bottom of the container. The container positioning components can effectively fix the two sides of the container, and the mutual cooperation of the plug-in fixing structure and the assembly cross bar enables the bottom of the container to remain stable.

[0014] In the above-mentioned trackless hybrid electric traction single trailer vehicle, the container positioning assembly includes fixed connectors arranged on both sides of the rear trailer, one end of the fixed connector is connected to the rear trailer through a locking nut, and the other end is arranged on the upper end surface of the rear trailer and fixedly connected to the container installation slide groove vertically arranged on the rear trailer, and the container is provided with a connecting slider inserted in the container installation slide groove, and the assembly cross bar is sequentially passed through the upper end of the fixed connector, the container installation slide groove and the sliding installation base at the bottom of the container; the plug-in fixing structure includes a plurality of arc-shaped plug-in protrusions arranged axially along the circumferential outer wall of the assembly cross bar, the plug-in hole is arranged on the sliding installation base, and the circumferential inner wall of the plug-in hole is provided with a plurality of arc-shaped slots arranged one-to-one corresponding to the arc-shaped plug-in protrusions, the arc-shaped plug-in protrusions are slidably inserted in the arc-shaped slots and limited by the arc-shaped slots, and the two ends of the assembly cross bar are locked and fixed by locking bolts. The provision of the plug-in fixing structure can effectively prevent the container from detaching from the rear trailer due to bumps and vibrations.

[0015] In the above-mentioned trackless hybrid electric traction single-trailer vehicle, the sliding protection assembly includes a power socket arranged at the upper end of the tractor head, the electric traction seat is arranged at one end of the power socket, and the upper end of the electric traction seat is provided with a wiring socket, the two sides of the electric traction seat are provided with a sliding connection protection structure, and the inner side of the electric traction seat is provided with a conductive plug, and the end of the power socket is provided with a power connection slot corresponding to the conductive plug; the sliding connection protection structure includes a strip guide slide groove arranged on the tractor head, and a protective side plate is slidably arranged in the strip guide slide groove, and a limit slide groove for limiting the sliding stroke of the protective side plate is provided on the side of the electric traction seat, and the inner wall of the protective side plate is slidably arranged in the limit slide groove. The setting of the sliding protection assembly makes the power socket dustproof and rainproof, and improves the protection performance.

[0016] Compared with the existing technology, the advantages of the present invention are: reasonable design and good linkage. When the front trailer tows the rear trailer to turn, it can realize adaptive rotation limit of the plug pin shaft, and the plug pin shaft can be locked by using the electric locking structure, so that direct power transmission is formed between the front trailer and the rear trailer, improving the safety and stability when turning, and the container positioning component and the plug-in fixing structure can effectively lock and position the container to avoid displacement due to inertia when turning, and the stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the overall structure of the present invention;

[0018] Figure 2 is a top view of the present invention;

[0019] Figure 3 is a cross-sectional view of the rotary adaptive traction connection mechanism of the present invention;

[0020] Figure 4 It is a schematic diagram of the plug pin structure in the present invention;

[0021] Figure 5 It is a detailed structural diagram of the rotation limiting cover body in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the rotating top pressing sleeve in the present invention;

[0023] Figure 7 It is an assembly diagram of the detachable positioning connection device in the present invention;

[0024] Figure 8 It is a cross-sectional view of the plug-in fixing structure in the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the sliding protection assembly in the present invention;

[0026] Fig.10 It is a cross-sectional view of the electric fifth wheel in the present invention.

[0027] In the figure, a tractor head 1, a front trailer 11, a rear trailer 12, a container 13, a rotating adaptive traction connection mechanism 2, a rotating connection assembly 21, a traction connection seat 211, a positioning base plate 212, a plug pin 213, a rotation limit cover 214, a pin positioning groove 215, an electric locking structure 22, a connecting cylinder 221, a rotating shaft 222, a sliding telescopic rod 223, an assembly slide rod 224, a pressing rod 225, a limit rod body 226, a limit hole 227, a connecting slide groove 228, a pressing cylinder 229, a rotating pressing assembly 23, an annular protrusion 231, a rotating pressing sleeve 232, an arc-shaped rotating limit groove 233, a limit spring 234, an arc-shaped plug interface 235, a connecting block 236, a detachable positioning connection device 3, a container positioning assembly 31, a fixed connector 311, a locking nut 312, a container installation slide groove 313, a connecting Slider 314, sliding mounting base 315, assembly cross bar 32, plug-in hole 33, plug-in fixing structure 34, arc-shaped plug-in protrusion 341, arc-shaped slot 342, locking bolt 343, electric traction seat 4, sliding protection assembly 5, power socket 51, wiring socket 52, conductive plug 53, power slot 54, rotation positioning structure 6, top pressure channel 61, linkage top pressure seat 62, top pressure cavity 63, arc-shaped sliding positioning portion 64, arc-shaped positioning groove 65, guide slide groove 66, reset tension spring 67, plug-in top pressure structure 7, plug-in seat 71, conical top pressure rod 72, positioning cavity 73, top pressure structure 8, strip groove 81, damping rod 82, damping block 83, block slide groove 84, fixed connection groove 85, strip sliding limit block 86, positioning groove 87, sliding connection protection structure 9, strip guide slide groove 91, protective side plate 92, limit slide groove 93. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1-10As shown, the trackless hybrid electric traction single-trailer vehicle comprises a tractor head 1, the tractor head 1 is connected to a front trailer 11, the front trailer 11 is connected to a rear trailer 12 at one end away from the tractor head 1, at least one container 13 is arranged on the front trailer 11, and at least two containers 13 are arranged on the rear trailer 12, a rotating adaptive traction connection mechanism 2 is arranged between the front trailer 11 and the rear trailer 12, and the container 13 on the rear trailer 12 is fixed to both sides of the rear trailer 12 by a plurality of detachable positioning connection devices 3, and an electric traction seat 4 is arranged at the upper end of the tractor head 1, and the electric traction seat 4 is closed by a sliding protection component 5. By arranging the rotating adaptive traction connection mechanism 2 between the front trailer 11 and the rear trailer 12, an adaptive rotating traction is formed, the linkage and safety when turning are improved, and the detachable positioning connection device 3 makes the disassembly and assembly of the container 13 more convenient, and forms an effective fixation of the container 13, thereby improving the stability of the container 13 when turning.

[0030] Among them, the rotating adaptive traction connection mechanism 2 includes a rotating connection component 21, and an electric locking structure 22 is provided on the inner side of the rotating connection component 21 in the circumferential direction. The electric locking structure 22 is connected to a control box arranged in the cab of the tractor head 1, and a rotating top pressure component 23 is provided on the rotating connection component 21, which can apply a reverse force after being subjected to force.

[0031] It can be seen that the rotating connection assembly 21 includes a traction connection seat 211, a positioning base plate 212 is provided at the bottom of the traction connection seat 211, and a plug pin 213 that can rotate in the circumferential direction and has a rotation limit cover 214 at the end is inserted on the circumferential inner side of the traction connection seat 211, and a pin positioning groove 215 is provided on the upper end surface of the positioning base plate 212, and a plug-in pressing structure 7 that can be inserted into the circumferential inner side of the plug pin 213 and horizontally move the rotation positioning structure 6 located in the circumferential direction of the plug pin 213 toward the outside is provided in the positioning base plate 212 and in the pin positioning groove 215. The rotating connection assembly 21 is used to perform a rotational traction connection on the rear trailer 12.

[0032] Furthermore, the rotation positioning structure 6 includes a linkage pressing seat 62 with one end arranged in the pressing channel 61 on the inner side of the plug pin shaft 213, and the linkage pressing seat 62 has a pressing cavity 63 on the inner side, and the diameter of the pressing cavity 63 gradually decreases from bottom to top. The linkage pressing seat 62 is provided with a plurality of arc-shaped sliding positioning parts 64 arranged horizontally from top to bottom, and the inner wall of the traction connection seat 211 is provided with an arc-shaped positioning groove 65 for the arc-shaped sliding positioning part 64 to be inserted. The pin shaft 213 has a guide slot 66 on the inner side of the circumference and located at the upper end of the top-pressing channel 61, and a return spring 67 is provided in the guide slot 66 to pull the arc-shaped sliding positioning part 64 to reset; the plug-in top-pressing structure 7 includes a plug-in seat 71 vertically arranged in the middle of the pin shaft positioning groove 215, and a conical top-pressing rod 72 is arranged on the plug-in seat 71 corresponding to the top-pressing cavity 63 in the circumference, and the upper end of the conical top-pressing rod 72 is abutted against the positioning cavity 73 on the inner side of the upper end of the top-pressing cavity 63 in the circumference. When the conical top-pressing rod 72 is inserted into the top-pressing cavity 63, the linkage top-pressing seat 62 is subjected to the top-pressing force to push the arc-shaped sliding positioning part to move horizontally toward the outside so as to be inserted into the arc-shaped positioning groove 65.

[0033] Obviously, the electric locking structure 22 includes a connecting cylinder 221 arranged on the inner side of the traction connecting seat 211, an arc-shaped positioning groove 65 is arranged on the inner wall of the connecting cylinder 221, and the plug pin 213 is plugged into the inner side of the connecting cylinder 221. The outer side of the connecting cylinder 221 is connected to a sliding telescopic rod 223 arranged obliquely along the traction connecting seat 211 through a rotating shaft 222, and an assembly sliding rod 224 is arranged on the sliding telescopic rod 223, and a pressing rod 225 is arranged at the end of the assembly sliding rod 224, and the upper and lower sides of the assembly sliding rod 224 are provided with a pressing rod 225. When subjected to force, the limiting rod body 226 can be vertically extended away from the assembly slide rod 224 and inserted into the arc-shaped positioning groove 65 to limit the arc-shaped sliding positioning part 64. The arc-shaped sliding positioning part 64 is provided with a plurality of limiting holes 227 corresponding to the limiting rod body 226. The end of the sliding telescopic rod 223 away from the rotating shaft 222 is slidably arranged in the connecting slide groove 228 in the positioning base plate 212, and the end of the sliding telescopic rod 223 located in the connecting slide groove 228 is connected to the top pressure cylinder 229 arranged at one end of the positioning base plate 212 and electrically connected to the control box. The top pressure cylinder 229 is used to push the bottom of the sliding telescopic rod 223 to slide in the connecting slide groove 228. When the top pressure rod 225 is subjected to resistance, the limiting rod body 226 slides into the arc-shaped positioning groove 65 and limits the arc-shaped sliding positioning part 64, thereby realizing the locking of the plug pin shaft 213.

[0034] Specifically, the rotating pressing assembly 23 includes an annular protrusion 231 arranged at one end of the rotating limit cover 214, a rotating pressing sleeve 232 is arranged on the circumferential outer side of the rotating limit cover 214, and a pressing structure 8 is arranged between the rotating pressing sleeve 232 and the two sides of the rotating limit cover 214, an arc-shaped rotating limit groove 233 is arranged on the circumferential inner wall of the rotating pressing sleeve 232, and a limit spring 234 is arranged on the inner side of both ends of the arc-shaped rotating limit groove 233, an arc-shaped plug-in interface 235 is formed between the limit springs 234, and the annular protrusion 231 is plugged into the arc-shaped plug-in interface 235 and positioned by a connecting block 236 arranged at the end of the limit spring 234. The rotating pressing assembly 23 enables the plug pin 213 to be subjected to a reverse pressing force when rotating left and right. The greater the rotation amplitude, the greater the reverse pressing force, which improves the safety during turning and avoids the situation of rapid turning.

[0035] Furthermore, the top pressure structure 8 includes a strip groove 81 arranged on both sides of the rotation limiting cover body 214, a damping rod 82 is axially arranged on the inner side of the two ends of the strip groove 81, and a damping block 83 is arranged at the end of the damping rod 82, the damping block 83 is slidably arranged in the block slide groove 84 on the upper and lower sides of the strip groove 81, and a fixed connection groove 85 is formed between the damping blocks 83, and a strip sliding limit block 86 inserted in the fixed connection groove 85 is provided on the inner side of the rotating top pressure sleeve body 232, and the strip sliding limit block 86 is arranged in the positioning groove 87 of the damping block 83.

[0036] More specifically, the detachable positioning connection device 3 includes container positioning components 31 which are arranged longitudinally and located on both sides of the rear trailer 12, an assembly cross bar 32 is passed through the container positioning components 31, and a plug-in fixing structure 34 is provided between the assembly cross bar 32 and the plug-in hole 33 at the bottom of the container 13.

[0037] Preferably, the container positioning assembly 31 includes a fixed connection member 311 arranged on both sides of the rear trailer 12, one end of the fixed connection member 311 is connected to the rear trailer 12 through a locking nut 312, and the other end is arranged on the upper end surface of the rear trailer 12 and fixedly connected to a container installation slide 313 vertically arranged on the rear trailer 12, and the container 13 is provided with a connecting slider 314 inserted in the container installation slide 313, and the assembly cross bar 32 is sequentially passed through the upper end of the fixed connection member 311, the container installation slide 313 and the container The sliding mounting base 315 at the bottom of the container 13; the plug-in fixing structure 34 includes a plurality of arc-shaped plug-in protrusions 341 arranged axially along the circumferential outer wall of the assembly cross bar 32, the plug-in hole 33 is arranged on the sliding mounting base 315, and the circumferential inner wall of the plug-in hole 33 is provided with a plurality of arc-shaped slots 342 arranged one-to-one corresponding to the arc-shaped plug-in protrusions 341, the arc-shaped plug-in protrusions 341 are slidably plugged in the arc-shaped slots 342 and limited by the arc-shaped slots 342, and the two ends of the assembly cross bar 32 are locked and fixed by locking bolts 343. During installation, the connecting sliders 314 on both sides of the container 13 are inserted into the container installation slide groove 313 and slide to the specified position, the assembly cross bar 32 is inserted into the plug-in hole 33, and fixed and locked by the plug-in fixing structure 34.

[0038] In detail, the sliding protection assembly 5 includes a power socket 51 arranged at the upper end of the tractor head 1, the electric traction seat 4 is arranged at one end of the power socket 51, and the upper end of the electric traction seat 4 is provided with a wiring socket 52, the two sides of the electric traction seat 4 are provided with a sliding connection protection structure 9, and the inner side of the electric traction seat 4 is provided with a conductive plug 53, and the end of the power socket 51 is provided with a power connection slot 54 corresponding to the conductive plug 53; the sliding connection protection structure 9 includes a strip guide slide 91 arranged on the tractor head 1, and a protective side plate 92 is slidably arranged in the strip guide slide 91, and a limit slide 93 for limiting the sliding stroke of the protective side plate 92 is provided on the side of the electric traction seat 4, and the inner wall of the protective side plate 92 is slidably arranged in the limit slide 93. Here, the electric traction seat 4 can slide on the tractor head 1, and the connection line of the wiring socket 52 is sealed in the circumferential direction.

[0039] In summary, the principle of this embodiment is that when turning, the front trailer 11 forms traction on the rear trailer 12 by rotating the connecting assembly 21, and forms an adaptive rotation limit on the plug pin 213 by rotating the pressing assembly 23, so as to improve the stability when turning and turning. When the turning range is large, the pressing cylinder 229 is used to push the bottom of the sliding telescopic rod 223 to slide in the connecting slide groove 228, and the pressing rod 225 is subjected to resistance, and the limit rod body 226 slides into the arc-shaped positioning groove 65 and forms a limit on the arc-shaped sliding positioning part 64, so as to lock the plug pin 213. The front trailer 11 and the rear trailer 13 maintain the set turning angle, so as to improve the effect when turning; and the container positioning assembly 31 and the plug-in fixing structure 34 are used to lock and fix the container 13 to avoid displacement when turning.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the present invention makes more use of the tractor head 1, the front trailer 11, the rear trailer 12, the container 13, the rotating adaptive traction connection mechanism 2, the rotating connection assembly 21, the traction connection seat 211, the positioning base plate 212, the plug pin 213, the rotation limit cover 214, the pin positioning groove 215, the electric locking structure 22, the connecting cylinder 221, the rotating shaft 222, the sliding telescopic rod 223, the assembly slide rod 224, the top pressure rod 225, the limit Positioning rod 226, limiting hole 227, connecting slide 228, top pressure cylinder 229, rotating top pressure assembly 23, annular protrusion 231, rotating top pressure sleeve 232, arc-shaped rotating limiting groove 233, limiting spring 234, arc-shaped plug interface 235, connecting block 236, detachable positioning connection device 3, container positioning assembly 31, fixed connector 311, locking nut 312, container installation slide 313, connecting slider 314, Sliding mounting base 315, assembly cross bar 32, plug hole 33, plug fixing structure 34, arc plug protrusion 341, arc slot 342, locking bolt 343, electric traction seat 4, sliding protection assembly 5, power socket 51, wiring socket 52, conductive plug 53, power slot 54, rotation positioning structure 6, top pressure channel 61, linkage top pressure seat 62, top pressure cavity 63, arc sliding positioning part 64, arc positioning groove 65, The terms such as guide slot 66, return spring 67, plug-in pressing structure 7, plug-in seat 71, conical pressing rod 72, positioning cavity 73, pressing structure 8, strip groove 81, damping rod 82, damping block 83, block slot 84, fixed connection slot 85, strip sliding limit block 86, positioning groove 87, sliding connection protection structure 9, strip guide slot 91, protective side plate 92, limit slot 93, etc., but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A trackless hybrid electric traction single-trailer vehicle, comprising a tractor head (1), the tractor head (1) is connected to a front trailer (11), and the front trailer (11) is connected to a rear trailer (12) at one end away from the tractor head (1), characterized in that: The front trailer (11) is provided with at least one container (13), and the rear trailer (12) is provided with at least two containers (13); a rotating adaptive traction connection mechanism (2) is provided between the front trailer (11) and the rear trailer (12); the container (13) on the rear trailer (12) is fixed to both sides of the rear trailer (12) by a plurality of detachable positioning connection devices (3); an electric traction seat (4) is provided at the upper end of the tractor head (1), and the electric traction seat (4) is closed by a sliding protection component (5); the rotating adaptive traction connection mechanism (2) comprises a rotating connection component (21), and the rotating connection component (21) is circumferentially inner. An electric locking structure (22) is provided on the side, and the electric locking structure (22) is connected to a control box arranged in the cab of the tractor head (1); the rotating connection component (21) is provided with a rotating pressing component (23) capable of applying a reverse force after being subjected to force; the rotating connection component (21) comprises a traction connection seat (211), a positioning base plate (212) is provided at the bottom of the traction connection seat (211), and a plug pin shaft (213) capable of circumferential rotation and having a rotation limiting cover body (214) at the end thereof is plugged into the inner side of the traction connection seat (211) in the circumferential direction, the upper end surface of the positioning base plate (212) is provided with a pin shaft positioning groove (215), and the positioning base plate (212) is provided with a rotation limiting cover body (214) at the end thereof. ) and is located in the pin shaft positioning groove (215) and is provided with a plug-in pressing structure (7) that can be inserted into the inner side of the plug-in pin shaft (213) so that the rotation positioning structure (6) located in the circumference of the plug-in pin shaft (213) moves horizontally toward the outside; the rotation positioning structure (6) includes a linkage pressing seat (62) with one end arranged in the pressing channel (61) on the inner side of the plug-in pin shaft (213); the linkage pressing seat (62) has a pressing cavity (63) on the inner side of the circumference, and the diameter of the pressing cavity (63) gradually decreases from bottom to top; the linkage pressing seat (62) is provided with a plurality of arc-shaped sliding positioning parts (64) arranged horizontally from top to bottom in the circumference, and the traction connection seat (211 ) is provided with an arc-shaped positioning groove (65) on the circumferential inner wall for the arc-shaped sliding positioning part (64) to be inserted, and the plug-in pin shaft (213) is provided with a guide groove (66) on the circumferential inner side and located at the upper end of the top pressure channel (61), and a return spring (67) is provided in the guide groove (66) for pulling the arc-shaped sliding positioning part (64) to return to its original position; the plug-in top pressure structure (7) comprises a plug-in seat (71) vertically arranged in the middle of the pin shaft positioning groove (215), and the plug-in seat (71) is provided with a conical top pressure rod (72) arranged in a circumferential direction corresponding to the top pressure cavity (63), and the upper end of the conical top pressure rod (72) is arranged to abut against the positioning cavity (73) on the circumferential inner side of the upper end of the top pressure cavity (63);The rotating pressing assembly (23) comprises an annular protrusion (231) arranged at one end of the rotating limit cover (214), a rotating pressing sleeve (232) is arranged on the circumferential outer side of the rotating limit cover (214), and a pressing structure (8) is arranged between the rotating pressing sleeve (232) and the two sides of the rotating limit cover (214), an arc-shaped rotating limit groove (233) is arranged on the circumferential inner wall of the rotating limit sleeve (232), and limit springs (234) are arranged on the inner sides of both ends of the arc-shaped rotating limit groove (233), an arc-shaped plug-in interface (235) is formed between the limit springs (234), and the annular protrusion (231) is plugged into the arc-shaped plug-in interface (235) and positioned by a connecting block (236) arranged at the end of the limit spring (234). ; 2. The trackless hybrid electric traction single-trailer vehicle according to claim 1, characterized in that: The electric locking structure (22) comprises a connecting cylinder (221) arranged on the inner side of the traction connecting seat (211) in the circumferential direction, the arc-shaped positioning groove (65) is arranged on the inner side of the circumferential direction of the connecting cylinder (221), and the plug-in pin shaft (213) is plugged into the inner side of the circumferential direction of the connecting cylinder (221), the outer side of the circumferential direction of the connecting cylinder (221) is connected to a sliding telescopic rod (223) arranged obliquely along the traction connecting seat (211) through a rotating shaft (222), and an assembly sliding rod (224) is arranged on the sliding telescopic rod (223), a pressing rod (225) is arranged at the end of the assembly sliding rod (224), and the upper and lower sides of the assembly sliding rod (224) are provided with a pressing rod (225). 25) when subjected to force, a limiting rod body (226) can be vertically extended away from the assembly slide rod (224) and inserted into the above-mentioned arc-shaped positioning groove (65) to limit the arc-shaped sliding positioning part (64), and the arc-shaped sliding positioning part (64) is provided with a plurality of limiting holes (227) corresponding to the limiting rod body (226), and one end of the sliding telescopic rod (223) away from the rotating shaft (222) is slidably set in the connecting slide groove (228) in the positioning base plate (212), and the end of the sliding telescopic rod (223) located in the connecting slide groove (228) is connected to a top pressure cylinder (229) set at one end of the positioning base plate (212) and electrically connected to the control box.

3. The trackless hybrid electric traction single-trailer vehicle according to claim 2, characterized in that: The top pressure structure (8) comprises strip grooves (81) arranged on both sides of the rotation limiting cover body (214), damping rods (82) are axially arranged on the inner sides of both ends of the strip grooves (81), and damping blocks (83) are arranged at the ends of the damping rods (82), the damping blocks (83) are slidably arranged in block sliding grooves (84) on the upper and lower sides of the strip grooves (81), and fixed connection grooves (85) are formed between the damping blocks (83), and the inner side of the rotation top pressure sleeve body (232) is provided with a strip sliding limit block (86) inserted in the fixed connection groove (85), and the strip sliding limit block (86) is arranged in the positioning groove (87) of the damping block (83).

4. The trackless hybrid electric traction single-trailer vehicle according to claim 1, characterized in that: The detachable positioning connection device (3) comprises container positioning components (31) arranged longitudinally and located on both sides of the rear trailer (12), an assembly cross bar (32) is passed through the container positioning components (31), and a plug-in fixing structure (34) is provided between the assembly cross bar (32) and the plug-in hole (33) at the bottom of the container (13).

5. The trackless hybrid electric traction single-trailer vehicle according to claim 4, characterized in that: The container positioning assembly (31) comprises fixed connecting pieces (311) arranged on both sides of the rear trailer (12); one end of the fixed connecting piece (311) is connected to the rear trailer (12) through a locking nut (312); the other end is arranged on the upper end surface of the rear trailer (12) and fixedly connected to a container installation slide groove (313) vertically arranged on the rear trailer (12); the container (13) is provided with a connecting slider (314) inserted into the container installation slide groove (313); and the assembly cross bar (32) is sequentially passed through the upper end of the fixed connecting piece (311), the container installation slide groove (313) and the container (13) A sliding mounting base (315) at the bottom; the plug-in fixing structure (34) includes a plurality of arc-shaped plug-in protrusions (341) arranged axially along the circumferential outer wall of the assembly cross bar (32); the plug-in hole (33) is arranged on the sliding mounting base (315), and the circumferential inner wall of the plug-in hole (33) is provided with a plurality of arc-shaped slots (342) arranged one-to-one corresponding to the arc-shaped plug-in protrusions (341); the arc-shaped plug-in protrusions (341) are slidably plugged into the arc-shaped slots (342) and are limited by the arc-shaped slots (342), and the two ends of the assembly cross bar (32) are locked and fixed by locking bolts (343).

6. The trackless hybrid electric traction single-trailer vehicle according to claim 1, characterized in that: The sliding protection assembly (5) comprises an electrical socket (51) arranged at the upper end of the tractor head (1), the electric traction seat (4) is arranged at one end of the electrical socket (51), and a wiring socket (52) is arranged at the upper end of the electric traction seat (4), sliding connection protection structures (9) are arranged on both sides of the electric traction seat (4), and a conductive plug (53) is arranged on the inner side of the electric traction seat (4) in the circumferential direction, and an electrical connection slot (54) corresponding to the conductive plug (53) is arranged at the end of the electrical socket (51); the sliding connection protection structure (9) comprises a strip guide slide groove (91) arranged on the tractor head (1), and a protective side plate (92) is slidably arranged in the strip guide slide groove (91), and a limiting slide groove (93) for limiting the sliding stroke of the protective side plate (92) is arranged on the side of the electric traction seat (4), and the inner wall of the protective side plate (92) is slidably arranged in the limiting slide groove (93).

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