Tractor and connecting structure

Abstract

This application discloses a tractor and its connecting structure, comprising at least a mobile frame, an auxiliary tilting structure, and a connecting structure. The auxiliary tilting structure and the connecting structure are connected to the mobile frame. The auxiliary tilting structure includes a lifting mechanism and a tightening mechanism, the lifting mechanism being connected to the tightening mechanism to drive the tightening mechanism to move up and down. The connecting structure and the tightening mechanism are arranged side-by-side along the moving direction of the mobile frame. When the connecting structure is connected to a flatbed trailer, the lifting mechanism drives the tightening mechanism to be positioned above the connecting structure. This invention facilitates the transportation and tilting of storage containers.

Description

Technical Field

[0001] This application relates to the field of tractor equipment, and in particular to a tractor and its connecting structure. Background Technology

[0002] In the chemical, coating, and food processing industries, there are often processes involving the mixing and stirring of multiple materials. Workers need to move storage containers containing different materials from the storage area to the side of the mixer and pour the materials from the storage containers one by one into the mixer.

[0003] Currently, in order to move the storage tanks from the storage area to the side of the mixer and pour the material from the storage tanks into the mixer, it is usually necessary to use a transport device to transport multiple storage tanks to the side of the mixer, and then have two workers work together to lift the storage tanks and pour them into the mixer.

[0004] The above-mentioned method requires the transportation equipment to perform only one transportation task, and the storage barrels must be moved manually. This is not only labor-intensive, but also requires two operators, resulting in high labor costs. Summary of the Invention

[0005] The purpose of this application is to provide a tractor and connecting structure to facilitate the transportation and dumping of storage barrels.

[0006] To achieve the above objectives, this application provides a tractor unit, comprising at least a mobile frame, an auxiliary tilting structure, and a connecting structure, wherein the auxiliary tilting structure and the connecting structure are connected to the mobile frame; the auxiliary tilting structure includes a lifting mechanism and a tightening mechanism, the lifting mechanism being connected to the tightening mechanism to drive the tightening mechanism to lift and lower; the connecting structure and the tightening mechanism are arranged side by side along the moving direction of the mobile frame, and when the connecting structure is connected to a flatbed trailer, the lifting mechanism drives the tightening mechanism to be positioned above the connecting structure.

[0007] To achieve the above objectives, this application also provides a connecting structure for connecting to a connecting part of a flatbed trailer; the connecting structure includes at least a T-shaped seat, a plug rod, a push rod, a T-shaped pressure block, and a pin; the T-shaped seat has a transverse cavity, a longitudinal cavity, and a side opening, wherein the transverse cavity and the longitudinal cavity are perpendicular to each other and communicate with each other, and the side opening is located on one side of the longitudinal cavity and communicates with the longitudinal cavity; the push rod is slidably connected in the longitudinal cavity, a spring is provided between the top of the push rod and the top of the longitudinal cavity, and the push rod has The device includes a drive hole and a force-applying hole; the insertion rod is slidably connected within the transverse cavity, the middle of the insertion rod has an inclined surface, the insertion rod passes through the drive hole and the inclined surface is in contact with the top surface of the drive hole; the insertion rod is T-shaped and has an insertion hole at its small end; the bottom of the T-shaped pressure block is hinged within the side opening, and one top end of the T-shaped pressure block is located within the force-applying hole; when the connecting structure is connected to the flatbed trailer, the pin is inserted into the insertion hole, and the T-shaped pressure block presses the flange at the flatbed trailer connection portion onto the T-shaped seat.

[0008] Therefore, the technical solution provided in this application has an auxiliary tilting structure and a connecting structure installed on the mobile frame. The auxiliary tilting structure is used to assist the operator in pouring out the material in the storage bucket, and the connecting structure is used to connect the flatbed trailer for transporting the storage bucket. This allows a single tractor to perform both transporting and tilting functions for the storage bucket, making it a dual-purpose vehicle with low manufacturing costs. Moreover, one person can tilt the storage bucket, making it convenient to use and saving labor.

[0009] Furthermore, the connecting structure and the tightening mechanism are arranged side by side along the moving direction of the mobile frame. When the connecting structure is connected to the flatbed trailer, the lifting mechanism drives the tightening mechanism to be positioned above the connecting structure to make way for the connecting structure, making the structure of the tractor more compact. The force is concentrated in the middle of the tractor, resulting in uniform force distribution and ease of use.

[0010] Meanwhile, the connection structure of this application uses the telescopic movement of the plug rod to drive the T-shaped pressure block to flip and press and release the flange of the connecting part of the flatbed trailer, which can realize quick connection and quick disassembly. Moreover, the connection with the flatbed trailer is located inside the connecting part of the flatbed trailer, making the connection more aesthetically pleasing. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0012] Figure 1 This is a first-angle isometric view of the tractor unit in one embodiment provided in this application;

[0013] Figure 2 This is a second-angle isometric view of the tractor unit in one embodiment provided in this application;

[0014] Figure 3 yes Figure 2 Enlarged view of part A;

[0015] Figure 4 This is a half-sectional view of the working state of the connection structure in one embodiment provided in this application;

[0016] Figure 5 This is a partial structural diagram of the tractor unit in one embodiment provided in this application;

[0017] Figure 6 yes Figure 5 A half-section diagram;

[0018] Figure 7 This is a schematic diagram of the fastening mechanism in one embodiment provided in this application;

[0019] In the diagram: 1. Movable frame; 11. U-shaped seat; 111. Positioning block; 12. Drive wheel; 13. Steering wheel; 14. Bracket; 15. Drive motor assembly; 2. Auxiliary tilting structure; 21. Lifting mechanism; 211. Vertical slide rail; 212. Lifting block; 213. Sliding plate; 2131. Rack; 2132. Force-bearing block; 214. Vertical plate; 2141. First gear; 2142. Second gear; 2143. Third gear; 2144. Tilting rod; 215. Telescopic mechanism; 22. Fastening mechanism; 221. First arc-shaped part ; 222, Second arc-shaped part; 223, Third arc-shaped part; 224, Ratchet tightener; 225, Tightening rope; 23, Pulley assembly; 231, Movable pulley; 232, First fixed pulley; 233, Second fixed pulley; 234, Transmission rope; 3, Connecting structure; 31, T-shaped seat; 311, Transverse cavity; 312, Longitudinal cavity; 313, Side opening; 32, Insert rod; 321, Inclined surface; 322, Insertion hole; 33, Push rod; 331, Drive hole; 332, Force application hole; 34, T-shaped pressure block; 35, Spring; 36, Pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. Terms used in this application to indicate spatial relative positions, such as “above,” “over,” “below,” “under,” “first end,” “second end,” “one end,” and “other end,” are used for ease of explanation to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figures is flipped, a unit described as being “below” or “under” other units or features would be located “above” other units or features. Therefore, the exemplary term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein will be interpreted accordingly.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "sliding connection," "fixed," and "sleeve connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] The technical solutions in the embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the embodiments described in this application are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0023] In one feasible implementation, please refer to [link / reference]. Figure 1 and Figure 2 As shown, a tractor unit may include a movable frame 1, an auxiliary tilting structure 2, and a connecting structure 3. The auxiliary tilting structure 2 and the connecting structure 3 are connected to the movable frame 1, and the movable frame 1 is used to move the auxiliary tilting structure 2 and the connecting structure 3. The auxiliary tilting structure 2 may include a lifting mechanism 21 and a tightening mechanism 22. The lifting mechanism 21 is connected to the tightening mechanism 22, thereby causing the lifting mechanism 21 to drive the tightening mechanism 22 to rise and fall.

[0024] To make the tractor structure more compact, this application connects the connecting structure 3 and the fastening mechanism 22 along the moving direction of the movable frame 1 (the moving direction of the movable frame 1 can be found in...). Figure 2The components are arranged side by side in the direction of a, and the connecting structure 3 and the fastening mechanism 22 can be located in the middle position of the tractor (i.e., on the axis of symmetry). This ensures that whether the tractor is used to tow a flatbed trailer (not shown) or to dump storage barrels, the force on the tractor is in the middle position of the tractor, resulting in uniform force distribution and ease of use.

[0025] When the connecting structure 3 is connected to the flatbed trailer (not shown), the lifting mechanism 21 drives the tightening mechanism 22 to be positioned above the connecting structure 3. In other words, when the tractor unit of this application is used to tow the flatbed trailer (not shown), the lifting mechanism 21 is used to drive the tightening mechanism 22 to rise to make way, thereby facilitating the connection between the flatbed trailer (not shown) and the connecting structure 3. When the tractor unit of this application is used to assist in tilting the storage bucket, the lifting mechanism 21 is used to drive the tightening mechanism 22 to rise and fall, that is, to drive the storage bucket to rise and fall, thereby facilitating the tilting of the storage bucket.

[0026] It should be noted that the flatbed trailer (not shown) can refer to existing technology, and it is mainly used for transporting storage barrels. Its specific structure will not be described in detail here.

[0027] To facilitate contact and connection between the tightening mechanism 22 and the storage tank, in one feasible embodiment, please refer to [link to relevant documentation]. Figure 1 and Figure 2 As shown, the movable frame 1 may include a U-shaped base 11. The U-shaped base 11 has a crossbar section and two longitudinal sections. Each longitudinal section is provided with a drive wheel 12 at the end away from the crossbar section, and a steering wheel 13 is provided in the middle of the crossbar section.

[0028] By employing a U-shaped seat 11, when the storage bucket is connected to the tractor by the fastening mechanism 22, the tractor can be moved so that the storage bucket is located in the area formed by the U-shaped seat 11, thereby facilitating the fastening mechanism 22 to be fastened to the storage bucket.

[0029] In practical applications, the drive wheel 12 and the steering wheel 13 can be mounted on the bottom of the U-shaped base 11. The number of drive wheels 12 is at least two, and the number of steering wheels 13 is at least one; the specific number of drive wheels 12 and steering wheels 13 is not limited here. As a preferred embodiment, two drive wheels 12 and one steering wheel 13 can be used, with the two drive wheels 12 symmetrically arranged about the steering wheel 13.

[0030] The lifting mechanism 21 described above can be a linear lifting structure such as a pneumatic cylinder or an electric cylinder. However, in practical applications, due to the varying weights of the storage containers, to avoid damage to the lifting mechanism 21 caused by overloading, in a preferred embodiment, please refer to [the following text is also provided]. Figure 1 , Figure 2 and Figure 6As shown, the lifting mechanism 21 may include a drive unit and a vertical slide rail 211 disposed on each longitudinal rod. A lifting block 212 is slidably connected to each vertical slide rail 211, and each lifting block 212 is connected to the drive unit through a pulley assembly 23. The drive unit is used to drive the lifting block 212 to move up and down through the pulley assembly 23, thereby reducing the force on the drive unit.

[0031] Meanwhile, the vertical slide rail 211 is used to limit the lifting direction of the lifting block 212, so as to prevent the lifting block 212 from swaying during the lifting process. That is, it prevents the storage tank from swaying too much during the lifting process after the subsequent fastening mechanism 22 is connected to the storage tank, so as to make the lifting of the storage tank more stable.

[0032] In this embodiment, to reduce the pulling force of the drive unit by enabling the lifting block 212 to be raised and lowered via the pulley assembly 23, a bracket 14 should also be provided on the U-shaped seat 11. The pulley assembly 23 may include a movable pulley 231, a first fixed pulley 232, a second fixed pulley 233, and a transmission rope 234. The movable pulley 231 can be connected to the top of the lifting block 212, the first fixed pulley 232 is connected to the bracket 14, the second fixed pulley 233 is connected to the U-shaped seat 11, and the first fixed pulley 232 is located between the second fixed pulley 233 and the movable pulley 231. One end of the transmission rope 234 is connected to the bracket 14, and the other end of the transmission rope 234 passes sequentially through the movable pulley 231, the first fixed pulley 232, and the second fixed pulley 233, and the other end of the transmission rope 234 is connected to the drive unit. Thus, since the lifting block 212 is mounted on the movable pulley, when the lifting block 212 is connected to the storage tank through the clamping mechanism 22, the drive unit can save 1 / 2 of the pulling force, thereby effectively ensuring the service life of the drive unit components.

[0033] For further details regarding the specific structure of the drive unit, please refer to [link / reference needed]. Figure 5 and Figure 6 As shown, the drive unit may include a sliding plate 213, a vertical plate 214, and a telescopic mechanism 215. A rack 2131 is provided at each end of the sliding plate 213. The sliding plate 213 is slidably connected to the horizontal bar, and the sliding direction of the sliding plate 213 is parallel to the vertical bar. When the sliding plate 213 moves, the rack 2131 also moves accordingly.

[0034] Specifically, there are two upright plates 214, which are connected to the crossbar and located at both ends of the sliding plate 213. That is, the two upright plates 213 are respectively configured to correspond to the two pulley assemblies 23 and the two lifting blocks 212. Each upright plate 214 is rotatably connected to a first gear 2141, a second gear 2142, a third gear 2143, and a tilting rod 2144. The first gear 2141 meshes with the rack 2131 and the second gear 2142. The third gear 2143 meshes with the second gear 2142 and is coaxially connected to one end of the tilting rod 2144. The other end of the tilting rod 2144 is connected to the other end of the transmission rope 234, and the second gear 2142 is located between the first gear 2141 and the third gear 2143. Simultaneously, a telescopic mechanism 215 is fixed to the sliding plate 213, and the telescopic end of the telescopic mechanism 215 is connected to the side of the crossbar away from the longitudinal bar.

[0035] That is, when the telescopic mechanism 215 extends, it drives the sliding plate 213 and its rack 2131 to move, which in turn drives the flipping rod 2144 to rotate through the first gear 2141, the second gear 2142 and the third gear 2143 on each upright plate 214, thereby pulling or releasing the transmission rope 234.

[0036] In a preferred embodiment, two telescopic mechanisms 215 can be used, respectively disposed at both ends of the sliding plate 213, to ensure that the sliding plate 213 is subjected to uniform force.

[0037] In this embodiment, the telescopic mechanism 215 can be a pneumatic cylinder or an electric cylinder. The pneumatic cylinder or electric cylinder can refer to the prior art, and will not be described in detail here.

[0038] In one feasible implementation, to reduce the size of the tractor unit. Please see [link / reference needed]. Figure 2 and Figure 3 As shown, the connecting structure 3 can be connected to the sliding plate 213. Correspondingly, a force-bearing block 2132 can be provided on one side of the sliding plate 213, and the force-bearing block 2132 and the fastening mechanism 22 are located on both sides of the sliding plate 213. A positioning block 111 is provided on the U-shaped seat 11. When the telescopic mechanism 215 extends, the force-bearing block 2132 contacts the positioning block 111.

[0039] Thus, when the tractor is used to connect with a flatbed trailer (not shown), the extension mechanism 215 extends and drives the tightening mechanism 22 to rise, causing the force-bearing block 2132 to contact the positioning block 111. This transfers the tension on the connecting structure 213 to the contact point between the positioning block 111 and the force-bearing block 2132, preventing the extension mechanism 215 from bearing the tension and ensuring the service life of the extension mechanism 215.

[0040] For details regarding the specific structure of connection structure 3 mentioned above, please refer to [link / reference]. Figure 3 and Figure 4 As shown, the connecting structure 3 may include a T-shaped seat 31, a plug rod 32, a push rod 33, a T-shaped pressure block 34, and a pin 36.

[0041] The T-shaped seat 31 has a transverse cavity 311, a longitudinal cavity 312, and a side opening 313. The transverse cavity 311 is located within the horizontal portion of the T-shaped seat 31 and is parallel to the horizontal portion of the T-shaped seat 31. The transverse cavity 311 and the longitudinal cavity 312 are perpendicular to each other and communicate with each other, and the communication point can be located at the center of the transverse cavity 311. The side opening 313 is located on one side of the longitudinal cavity 312 and communicates with the longitudinal cavity 312, and the side opening 313 is located on the vertical portion of the T-shaped seat 31.

[0042] The push rod 33 is slidably connected within the longitudinal cavity 312. A spring 35 is provided between the top of the push rod 33 and the top of the longitudinal cavity 312. The push rod 33 has a drive hole 331 and a force application hole 332. The insertion rod 32 is slidably connected within the transverse cavity 311. The middle part of the insertion rod 32 has an inclined surface 321. The insertion rod 32 passes through the drive hole 331, and the inclined surface 321 is in contact with the top surface of the drive hole 331. Furthermore, the bottom of the T-shaped pressure block 34 is hinged within the side opening 313, and one top end of the T-shaped pressure block 34 is located within the force application hole 332.

[0043] Thus, under the action of the inclined surface 321 of the insertion rod 32 and the spring 35, as the insertion rod 32 extends and retracts, it can drive the push rod 33 to rise and fall (here, rising and falling refers to...). Figure 4 (Referring to the structure), that is, driving the force application hole 332 to rise and fall, thereby driving the T-shaped pressure block 34 to flip to the left or right, so as to press (the T-shaped pressure block 34 presses the flange of the flatbed trailer (not shown) connection part onto the T-shaped seat 31) or release it, so as to realize the connection from the inside of the connection part and improve the aesthetics.

[0044] To prevent the insertion rod 32 from wobbling during the movement of the tractor, the insertion rod 32 can also be T-shaped, and the small end of the insertion rod 32 has a socket 322. When the connecting structure 3 is connected to the flatbed trailer (not shown), the pin 36 is inserted into the socket 322, thereby fixing the insertion rod 32 in the drive hole 331.

[0045] In a preferred embodiment, there may be two side openings 313, which are symmetrically arranged about the longitudinal cavity 312, i.e., there may be two T-shaped pressure blocks 34, thereby ensuring the connection stability between the connecting structure 3 and the flatbed trailer (not shown).

[0046] Based on the lifting mechanism 21 described above, which uses lifting blocks 212 and pulley assembly, the fastening mechanism 22 of this application is rotatably connected to two lifting blocks 212 on both sides, and the fastening mechanism 22 is located in the area enclosed by the U-shaped seat 11.

[0047] Furthermore, a damper can be installed at the rotational connection between the tightening mechanism 22 and the two lifting blocks 212 to prevent the tightening mechanism 22 from swinging arbitrarily as the tractor moves when it is not in operation.

[0048] Specifically, in one feasible implementation, please refer to [link / reference]. Figure 7 As shown, the tightening mechanism 22 includes a first arc-shaped portion 221, a second arc-shaped portion 222, a third arc-shaped portion 223, a ratchet tightener 224, and a tightening rope 225. The two sides of the first arc-shaped portion 221 are rotatably connected to two lifting blocks 212, and the two ends of the first arc-shaped portion 221 are hinged to one end of the second arc-shaped portion 222 and one end of the third arc-shaped portion 223, respectively. The ratchet tightener 224 is fixed to the second arc-shaped portion 222. One end of the tightening rope 225 is connected to the third arc-shaped portion 223, and the other end of the tightening rope 225 is connected to the ratchet tightener 224.

[0049] The arc angle of the first arc portion 221 should be between 120° and 180° to ensure both the effective contact area with the storage bucket and the ability for the storage bucket to effectively enter the tightening mechanism 22.

[0050] Furthermore, the inner surfaces of the first arc-shaped portion 221, the second arc-shaped portion 222, and the third arc-shaped portion 223 may be provided with rough surfaces or rubber blocks to increase the friction between the tightening mechanism 22 and the storage tank. The widths of the first arc-shaped portion 221, the second arc-shaped portion 222, and the third arc-shaped portion 223 are 10cm-40cm.

[0051] In actual use, the tightening rope 225 is first disconnected from the ratchet tightener 224. When the storage bucket enters the area enclosed by the first arc-shaped part 221, the second arc-shaped part 222, and the third arc-shaped part 223, the tightening rope 225 is then connected to the ratchet tightener 224. As the ratchet tightener 224 tightens, the storage bucket is fixed in the tightening mechanism 22.

[0052] It should be noted that the tightening rope 225 described above can be made of cable, chain, binding strap, or wire harness. The structure of the ratchet tightener 224 can refer to existing technology and will not be described in detail here.

[0053] To facilitate the movement of the tractor, at least one drive wheel is connected to a drive motor assembly 15.

[0054] Based on the same inventive concept, this application also provides a connection structure 3 for connecting to the connection part of a flatbed trailer (not shown). The connection structure 3 includes at least a T-shaped seat 31, a plug rod 32, a push rod 33, a T-shaped pressure block 34, and a pin 36. The T-shaped seat 31 has a transverse cavity 311, a longitudinal cavity 312, and a side opening 313, wherein the transverse cavity 311 and the longitudinal cavity 312 are perpendicular to each other and communicate with each other, and the side opening 313 is located on one side of the longitudinal cavity 312 and communicates with the longitudinal cavity 312. The push rod 33 is slidably connected in the longitudinal cavity 312, and a spring 35 is provided between the top of the push rod 33 and the top of the longitudinal cavity 312. The push rod 33 has a drive hole 331 and a force application hole 332. The insertion rod 32 is slidably connected within the transverse cavity 311. The middle portion of the insertion rod 32 has an inclined surface 321. The insertion rod 32 passes through the drive hole 331, and the inclined surface 321 is in contact with the top surface of the drive hole 331. The insertion rod 32 is T-shaped, and its small end has an insertion hole 322. The bottom of the T-shaped pressure block 34 is hinged within the side opening 313, and one top end of the T-shaped pressure block 34 is located within the force application hole 332. When the connecting structure 3 is connected to the flatbed trailer (not shown), the pin 36 is inserted into the insertion hole 322, and the T-shaped pressure block 34 presses the flange at the connecting portion of the flatbed trailer (not shown) against the T-shaped seat 31.

[0055] The structural principle of connection structure 3 can be found in the above content and will not be repeated here.

[0056] The following section will provide a detailed explanation using a specific application scenario as an example, taking the transportation and dumping of dye barrels by a tractor-trailer.

[0057] One day, a certain dyeing process required the mixing and stirring of three dye agents.

[0058] Xiao Wang first moved the three types of dye barrels from the storage area onto a flatbed trailer. Then, Xiao Wang connected the tractor to the flatbed trailer via a connecting mechanism, and the tractor pulled the flatbed trailer to the side of the mixer. Next, Xiao Wang separated the flatbed trailer from the tractor, and used the securing and lifting mechanisms on the tractor to move the dye barrels from the flatbed trailer to the mixer for unloading, thus realizing the transportation and unloading of the dye barrels.

[0059] When Xiao Wang pours the dye container, he first uses a tightening mechanism to tighten the dye container, and then uses a lifting mechanism to lift the dye container to a predetermined height. This allows the dye container to rotate around the tightening mechanism and the lifting block, thus enabling a single person to pour the dye container.

[0060] Therefore, the technical solution provided in this application has an auxiliary tilting structure and a connecting structure installed on the mobile frame. The auxiliary tilting structure is used to assist the operator in pouring out the material in the storage bucket, and the connecting structure is used to connect the flatbed trailer for transporting the storage bucket. This allows a single tractor to perform both transporting and tilting functions for the storage bucket, making it a dual-purpose vehicle with low manufacturing costs. Moreover, one person can tilt the storage bucket, making it convenient to use and saving labor.

[0061] Furthermore, the connecting structure and the tightening mechanism are arranged side by side along the moving direction of the mobile frame. When the connecting structure is connected to the flatbed trailer, the lifting mechanism drives the tightening mechanism to be positioned above the connecting structure to make way for the connecting structure, making the structure of the tractor more compact. The force is concentrated in the middle of the tractor, resulting in uniform force distribution and ease of use.

[0062] Furthermore, the lifting mechanism of this application uses a pulley assembly to drive the storage tank to lift and lower, which effectively reduces the tension on the drive unit, that is, reduces the stress on the telescopic mechanism and ensures the service life of the telescopic mechanism.

[0063] Meanwhile, the connection structure of this application uses the telescopic movement of the plug rod to drive the T-shaped pressure block to flip and press and release the flange of the connecting part of the flatbed trailer, which can realize quick connection and quick disassembly. Moreover, the connection with the flatbed trailer is located inside the connecting part of the flatbed trailer, making the connection more aesthetically pleasing.

[0064] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tractor, characterized in that It includes at least a movable frame, an auxiliary tilting structure, and a connecting structure, wherein the auxiliary tilting structure and the connecting structure are connected to the movable frame; The auxiliary tilting structure includes a lifting mechanism and a tightening mechanism. The lifting mechanism is connected to the tightening mechanism to drive the tightening mechanism to move up and down. The connecting structure and the fastening mechanism are arranged side by side along the moving direction of the mobile frame. When the connecting structure is connected to the flatbed trailer, the lifting mechanism drives the fastening mechanism to be located above the connecting structure. The mobile frame includes a U-shaped base; the U-shaped base has a horizontal bar and two vertical bars, each of the vertical bars is provided with a drive wheel at the end away from the horizontal bar, and a steering wheel is provided in the middle of the horizontal bar; The lifting mechanism includes a drive unit and a vertical slide rail disposed on each of the longitudinal rods; a lifting block is slidably connected to each of the vertical slide rails, and each lifting block is connected to the drive unit through a pulley assembly; the two sides of the fastening mechanism are rotatably connected to the two lifting blocks respectively, and the fastening mechanism is located within the area enclosed by the U-shaped seat; The connecting structure includes a T-shaped seat, a push rod, a plug rod, a T-shaped pressure block, and a pin. The T-shaped seat has a transverse cavity, a longitudinal cavity, and a side opening, wherein the transverse cavity and the longitudinal cavity are perpendicular to each other and communicate with each other, and the side opening is located on one side of the longitudinal cavity and communicates with the longitudinal cavity. The push rod is slidably connected in the longitudinal cavity, and a spring is provided between the top of the push rod and the top of the longitudinal cavity. The push rod has a drive hole and a force application hole. The plug rod is slidably connected in the transverse cavity, and the middle part of the plug rod has an inclined surface. The plug rod passes through the drive hole, and the inclined surface is in contact with the top surface of the drive hole. The plug rod is T-shaped, and the small end of the plug rod has a insertion hole. The bottom of the T-shaped pressure block is hinged in the side opening, and one top end of the T-shaped pressure block is located in the force application hole. When the connecting structure is connected to the flatbed trailer, the pin is inserted into the insertion hole, and the T-shaped pressure block presses the flange at the connecting part of the flatbed trailer onto the T-shaped seat.

2. The tow vehicle of claim 1, wherein, A bracket is provided on the U-shaped base; The pulley assembly includes a movable pulley, a first fixed pulley, a second fixed pulley, and a transmission rope; The movable pulley is connected to the top of the lifting block, the first fixed pulley is connected to the bracket, the second fixed pulley is connected to the U-shaped seat, and the first fixed pulley is located between the second fixed pulley and the movable pulley; One end of the transmission rope is connected to the bracket, and the other end of the transmission rope passes through the movable pulley, the first fixed pulley and the second fixed pulley in sequence, and the other end of the transmission rope is connected to the drive unit.

3. The tow vehicle of claim 2, wherein, The drive unit includes a sliding plate, a vertical plate, and a telescopic mechanism; The sliding plate is provided with racks at both ends, the sliding plate is slidably connected to the crossbar, and the sliding direction of the sliding plate is parallel to the vertical bar. Specifically, there are two upright plates, which are connected to the crossbar and are located at both ends of the sliding plate. Each upright plate is rotatably connected to a first gear, a second gear, a third gear, and a flipping rod, with the first gear meshing with the rack and the second gear respectively. The third gear meshes with the second gear and is coaxially connected to one end of the flipping rod, while the other end of the flipping rod is connected to the other end of the transmission rope. The telescopic mechanism is fixed to the sliding plate, and the telescopic end of the telescopic mechanism is connected to the side of the crossbar portion away from the longitudinal portion.

4. The tow vehicle of claim 3, wherein, The connection structure is connected to the sliding plate; A force-bearing block is provided on one side of the sliding plate, and the force-bearing block and the fastening mechanism are respectively located on both sides of the sliding plate; The U-shaped seat is provided with a positioning block. When the telescopic mechanism extends, the force-bearing block contacts the positioning block.

5. A towing vehicle according to claim 1 or 4, characterised in that The tightening mechanism includes a first arc-shaped part, a second arc-shaped part, a third arc-shaped part, a ratchet tightener, and a tightening rope; The two sides of the first arc-shaped portion are respectively rotatably connected to the two lifting blocks, and the two ends of the first arc-shaped portion are respectively hinged to the second arc-shaped portion and the third arc-shaped portion; The ratchet tightener is fixed to the second arc-shaped portion; One end of the tightening rope is connected to the third arc-shaped part, and the other end of the tightening rope is connected to the ratchet tightener.

6. The tow vehicle of claim 1, wherein, At least one of the drive wheels has a drive motor assembly connected to one side.

7. A connection structure for connecting with a connection portion of a flatbed trailer, characterized by: It includes at least a T-shaped seat, a plug rod, a push rod, a T-shaped pressure block, and a pin; The T-shaped seat has a transverse cavity, a longitudinal cavity, and a side opening, wherein the transverse cavity and the longitudinal cavity are perpendicular to each other and communicate with each other, and the side opening is located on one side of the longitudinal cavity and communicates with the longitudinal cavity; The push rod is slidably connected within the longitudinal cavity, and a spring is provided between the top of the push rod and the top of the longitudinal cavity. The push rod also has a drive hole and a force application hole. The insertion rod is slidably connected within the transverse cavity. The middle part of the insertion rod has an inclined surface. The insertion rod passes through the drive hole and the inclined surface is in contact with the top surface of the drive hole. The insertion rod is T-shaped and has an insertion hole at its small end. The bottom of the T-shaped pressure block is hinged in the side opening, and one top end of the T-shaped pressure block is located in the force application hole; When the connecting structure is connected to the flatbed trailer, the pin is inserted into the socket, and the T-shaped pressure block presses the flange at the connecting part of the flatbed trailer onto the T-shaped seat.

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