Working vehicle

Abstract

The utility model provides an operating vehicle. The device comprises a tractor, a machine tool and a hitching device, wherein the machine tool can be mounted on the tractor through the hitching device; the hanging device comprises a first hanging component, a second hanging component and a first locking mechanism, the first hanging component is hung on the lifter and can synchronously ascend and descend along with the lifter, and a guide part is arranged at the top of the first hanging component; the second hooking component is connected with the machine tool, and a guide hole is formed in the top of the second hooking component; and the first locking mechanism is used for fixing the first hooking component and the second hooking component. The first hitching component is lifted through the lifter, butt joint of the first hitching component and the second hitching component is achieved after the guide part and the guide hole are matched and guided, fixing of the first hitching component and the second hitching component is achieved through the first locking mechanism, automatic hitching of a tractor and a machine tool is achieved, labor is saved, and work efficiency is improved. And the hooking efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a work vehicle. Background Technology

[0002] In existing technologies, when using a lifter to assemble agricultural implements on a tractor, the operator needs to adjust the height of the upper pull rod to align it with the connection point on the implement before fixing it in place. This process is labor-intensive and inefficient, especially when the implement is heavy or the terrain is complex, making operation difficult. Therefore, it is necessary to provide a work vehicle to overcome these shortcomings. Utility Model Content

[0003] The purpose of this utility model is to provide a work vehicle.

[0004] According to one aspect of the present invention, a work vehicle is provided, comprising: a tractor with its forward direction as the forward direction, the tractor being equipped with a lift; a implement; and a mounting device, the mounting device being capable of mounting the implement onto the lift;

[0005] The hooking device includes: a first hooking member, which is hooked onto the lifter and can rise and fall synchronously with the lifter; the first hooking member includes a first body portion and a first guide post disposed on the top of the first body portion; a second hooking member, which is connected to the machine tool; the second hooking member includes a second body portion and a first guide hole disposed on the top of the second body portion, the second body portion can be sleeved on the outside of the first body portion, and the first guide post can be fitted into the first guide hole; a first locking mechanism, which fixes the first hooking member and the second hooking member; the first locking mechanism includes locking grooves disposed on both sides of the first body portion, locking shafts disposed on both sides of the second body portion and capable of being locked in the locking grooves, and a limiting mechanism that restricts the locking shafts from disengaging from the locking grooves.

[0006] Preferably, the second hooking component further includes a first guide plate and a second guide plate respectively disposed on both sides of the second body portion, and the left-right distance between the first guide plate and the second guide plate gradually decreases from front to back.

[0007] Preferably, the second hooking component further includes a third guide plate and a fourth guide plate respectively disposed on the two inner sides of the second body portion, and the left and right distance between the third guide plate and the fourth guide plate gradually decreases from bottom to top.

[0008] Preferably, the first mounting component further includes a fifth guide plate and a sixth guide plate respectively disposed on the two outer sides of the first body portion, and the left and right distance between the fifth guide plate and the sixth guide plate gradually decreases from bottom to top.

[0009] Preferably, the upper part of the first guide post is a cone, and the diameter of the first guide hole matches the diameter of the lower bottom surface of the cone.

[0010] Preferably, the limiting mechanism includes: a first locking tongue, the first locking tongue including a first arm and a second arm that rotate integrally and form a predetermined angle, the connection point of the first arm and the second arm being rotatably disposed on the first body, the first arm being located on the movement trajectory of the locking shaft moving to the locking groove; and a first elastic member, the first elastic member being disposed between the second arm and the first body, the first elastic member maintaining the state in which the first arm is located on the movement trajectory of the locking shaft moving to the locking groove.

[0011] Preferably, the limiting mechanism further includes a first hydraulic cylinder, which is disposed between the second arm and the first body, and the first hydraulic cylinder drives the first arm to move away from the locking shaft to the locking groove.

[0012] Preferably, the locking groove includes a first groove plate and a second groove plate disposed on the first body part, and the left and right distance between the first groove plate and the second groove plate gradually decreases from front to back.

[0013] Preferably, the first mounting component further includes two first fixing parts respectively disposed on both sides of the first body part and a second fixing part disposed on the first body part and located above the first fixing parts. The two second fixing parts are connected to the two pull rods of the lifter, and the first fixing part is connected to the pull rod of the lifter.

[0014] Preferably, the first mounting member further includes a first connector disposed on the first body portion, and the first mounting member further includes a second connector disposed on the second body portion and capable of being connected to the first connector.

[0015] Compared with the prior art, the work vehicle provided by this utility model has the following beneficial effects: This utility model lifts the first hooking component by lifting the first hooking component, and after being guided by the first guide post and the first guide hole, the first hooking component and the second hooking component are docked. The first locking mechanism realizes the automatic locking of the first hooking component and the second hooking component, realizing the automatic hooking of the tractor and the implement, saving labor. As long as the operator can quickly complete the operation of hooking the implement in the cab, the hooking efficiency can be greatly improved. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the work vehicle in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the lifting device, the hanging device, and the tool in this utility model;

[0019] Figure 3 This is an exploded view of the lifting device, the hanging device, and the machinery in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the hanging device in this utility model before hanging;

[0021] Figure 5 This is a front view of the first connecting component in this utility model;

[0022] Figure 6 This is a rear view of the first connecting component in this utility model;

[0023] Figure 7 The first locking mechanism in this utility model (i.e. Figure 4 A magnified view of a portion of region A in the middle;

[0024] Figure 8 This is a structural schematic diagram of the second connecting component in this utility model;

[0025] Figure 9 This is an exploded view of the second connecting component in this utility model;

[0026] Figure 10 This is a top view of the second hooking component in this utility model before angle adjustment;

[0027] Figure 11 This is a top view of the second hooking component in this utility model after angle adjustment;

[0028] Figure 12 The second locking mechanism (i.e., the second hooking component in this utility model after angle adjustment) is used. Figure 11 A cross-sectional view of section AA (in the middle section);

[0029] Figure 13 This is a schematic diagram of the hanging device after the hanging is completed in this utility model;

[0030] Figure 14 The hydraulic joint mechanism of this utility model relates to the first joint portion (i.e. Figure 4 A structural diagram of region B in the middle;

[0031] Figure 15 This is a structural diagram of the hydraulic joint mechanism of the present invention regarding the second joint portion;

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Tractor; 200. Mounting device; 300. Implement;

[0034] 1. Lifter; 11a, 11b, Lower pull rod; 12. Upper pull rod;

[0035] 2. First hook-up component; 21. First body part; 22. First guide post; 23a. Fifth guide plate; 23b. Sixth guide plate; 24a, 24b. First fixing part; 25. Second fixing part; 26. First locking mechanism; 261. Lock groove; 2611. First groove plate; 2612. Second groove plate; 262. First locking tongue; 2621. First arm part; 2622. Second arm part; 263. First elastic element; 264. First hydraulic cylinder; 27. Second hydraulic cylinder;

[0036] 3. Second hook-up component; 31. Second body part; 311. Main platform; 312. Sub-platform; 3121. Top plate; 3122. Locking hole; 3123. Lifting lug; 313. First rotating component; 314. Second rotating component; 315. Second locking mechanism; 3151. Sleeve; 3152. First column; 3153. Second elastic component; 3154. Second column; 3155. Limiting part; 32. First guide hole; 33. Locking shaft; 34a. First guide plate; 34b. Second guide plate; 35a. Third guide plate; 35b. Fourth guide plate; 36. Third fixing part;

[0037] 4. Hydraulic quick-change mechanism; 41. First connector; 411. First mounting base; 412. Quick-connect male connector; 413. Second guide post; 42. Second connector; 421. Second mounting base; 422. Quick-connect female connector; 421. Second guide hole; 43. Attachment bracket; 44. Mounting plate; 45. Third cylinder; 46. Elastic component; 461. First bracket; 462. First mounting post; 463. Second bracket; 464. Second mounting post; 465. Third bracket; 466. Third elastic element; 467. Fourth elastic element; 47. Third locking mechanism; 471. Second locking tongue; 4711. Connecting rod; 4712. Hook; 472. Fifth elastic element; 463. Limiting post; 474. Fourth cylinder. Detailed Implementation

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0040] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0044] See Figures 1 to 15 This embodiment discloses a work machine, which includes a tractor 100, a implement 300 disposed at the rear of the tractor 100, and a mounting device 200 for connecting the tractor 100 and the implement 300. The mounting device 200 includes a first mounting member 2 connected to the tractor 100, a second mounting member 3 connected to the implement 300, and a first locking mechanism 26 for fixing the first mounting member 2 and the second mounting member 3.

[0045] See appendix Figures 1 to 3With the forward direction of the tractor 100 as the front, the transmission box of the tractor 100 is provided with a lifter 1. The lifter 1 is a three-point suspension device. The three-point suspension device includes two lower pull rods 11a and 11b respectively located on both sides of the transmission box and an upper pull rod 12 located on the top of the transmission box.

[0046] See appendix Figure 4 5. The first mounting component 2 further includes two first fixing parts 24a and 24b respectively disposed on both sides of the first body part 21 and a second fixing part 25 disposed on the first body part 21 and located above the first fixing parts 24a and 24b. The two first fixing parts 24a and 24b are connected to the two pull rods 11a and 11b, and the second fixing part 25 is connected to the pull rod 12, so that the first mounting component 2 is mounted on the lifter 1.

[0047] See appendix Figure 9 , 13 The second mounting component 3 is connected to the machine tool 300. The second mounting component 3 includes a second body part 31, and a third fixing part 36 is provided on the rear side of the second body part 31. The third fixing part 36 is connected to the machine tool 300. The front side of the second body part 31 can be partially fitted outside the first body part 21. When the first body part 21 is fitted inside the second body part 31, the mounting device 200 can be positioned.

[0048] See appendix Figure 4 , 8 The second body 31 has a first guide plate 34a and a second guide plate 34b on both sides, and the left-right distance between the first guide plate 34a and the second guide plate 34b gradually decreases from front to back until it is equal to or approximately equal to the left-right distance of the first body 21. When the tractor 100 reverses, the first coupling member 2 is guided by the first guide plate 34a and the second guide plate 34b to achieve the guidance and positioning of the first coupling member 2 and the second coupling member 3 in the left-right direction.

[0049] See appendix Figure 4 , 8 The second body portion 31 has a third guide plate 35a and a fourth guide plate 35b on its two inner sides, respectively. The left-right distance between the third guide plate 35a and the fourth guide plate 35b gradually decreases from bottom to top until it is equal to or approximately equal to the left-right distance on the outer side of the first body portion 21. Similarly, the first body portion 21 has a fifth guide plate 23a and a sixth guide plate 23b on its two outer sides, respectively. The left-right distance between the fifth guide plate 23a and the sixth guide plate 23b gradually decreases from bottom to top until it is equal to or approximately equal to the left-right distance on the inner side of the second body portion 31.

[0050] See appendix Figures 4 to 6 The first body part 21 is provided with a first guide post 22 at the top, and the upper part of the first guide post 22 is a cone. The second body part 31 is provided with a first guide hole 32, and the diameter of the first guide hole 32 matches the diameter of the lower bottom surface of the cone.

[0051] When the lifter 1 drives the first hooking component 2 to rise, the first hooking component 2 is roughly guided in the height direction by the third guide plate 35a, the fourth guide plate 35b, the fifth guide plate 23a and the sixth guide plate 23b. The lifter 1 further drives the first hooking component 2 to rise until the first guide post 22 is fitted into the first guide hole 32, thereby realizing the guidance and positioning of the first hooking component 2 and the second hooking component 3 in the height direction.

[0052] See appendix Figure 7 The first locking mechanism 26 fixes the first hook member 2 and the second hook member 3. The first locking mechanism 26 includes locking grooves 261 on both sides of the first body part 21, locking shafts 33 on both sides of the second body part 31 that can move into the locking grooves 261, and a limiting mechanism that restricts the locking shafts 33 from disengaging from the locking grooves 261.

[0053] The locking groove 261 includes a first groove plate 2611 and a second groove plate 2612 disposed on the first body part 21. The left and right distance between the first groove plate 2611 and the second groove plate 2612 gradually decreases from front to back, forming a V-shaped structure. The locking shaft 33 can be locked in the locking groove 261.

[0054] The limiting mechanism includes a first locking tongue 262 and a first elastic element 263. The first locking tongue 262 includes a first arm 2621 and a second arm 2622 that rotate integrally and form a predetermined angle. The connection point of the first arm 2621 and the second arm 2622 is rotatably disposed on the first body part 21. The first arm 2621 is located on the movement trajectory of the locking shaft 33 to the locking groove 261. The first elastic element 263 is disposed between the second arm 2622 and the first body part 21. The first elastic element 263 keeps the first arm 2621 in the state where the locking shaft 33 moves to the locking groove 261.

[0055] When the locking shaft 33 moves downward relative to the locking groove 261, the first groove plate 2611 and the second groove plate 2612 can play a guiding role. When the locking shaft 33 contacts the first arm 2621, the locking shaft 33 drives the first locking tongue 262 to rotate and avoid it, guiding the locking shaft 33 into the locking groove 261. When the locking shaft 33 is fully inserted into the locking groove 261, the first locking tongue 262 automatically resets under the action of the first elastic member 263, thereby limiting the locking shaft 33 and preventing the locking shaft 33 from leaving the locking groove 261.

[0056] To unlock the aforementioned restrictive mechanism, refer to the appendix. Figure 7 The limiting mechanism further includes a first hydraulic cylinder 264, which is disposed between the second arm 2622 and the first body 21. The first hydraulic cylinder 264 drives the first locking tongue 262 to rotate, so that the first arm 2621 leaves the movement trajectory of the locking shaft 33 to the locking groove 261, thereby releasing the limitation on the locking shaft 33.

[0057] In actual use, since the positional relationship between the first hooking component 2 and the lifting device 1 is fixed, and the positional relationship between the second hooking component 3 and the implement 300 is fixed, it is necessary to ensure that the tractor 100 and the implement 300 are on the same axis, making it impossible to directly and completely fit the first body part 21 into the second body part 31.

[0058] In this regard, the second mounting member 3 is further improved by designing the second body part 31 as a split structure. See Appendix Figure 8 , 9 The second body part 31 includes a main platform 311, a secondary platform 312, two second hydraulic cylinders 27, and a second locking mechanism 315. The main platform 311 is connected to the first connecting member 2. The secondary platform 312 is provided with a third fixing part 36, and the implement 300 is fixed on the secondary platform 312. A first rotating member 313 and a second rotating member 314 are provided between the secondary platform 312 and the main platform 311. The first rotating member 313 and the second rotating member 314 are coaxially arranged on the central axis of the main platform 311, so that the main platform 311 and the secondary platform 312 can rotate relative to each other. When the first connecting member 2 is connected to the main platform 311, the main platform 311 can rotate along the first rotating member 313 and the second rotating member 314 without ensuring that the tractor 100 and the implement 300 are on the same axis.

[0059] See appendix Figure 5 , 6The first hooking component 2 is equipped with two synchronously moving second hydraulic cylinders 27. The two second hydraulic cylinders 27 are arranged in the front-back direction and symmetrically on both sides of the central axis of the main platform 311. After the first hooking component 2 is docked with the main platform 311, it continues to be lifted until the implement 300 is off the ground. The output ends of the two second hydraulic cylinders 27 act on the auxiliary platform 312, so that the auxiliary platform 312 and the implement 300 rotate relative to the main platform 311, thereby aligning the tractor 100 and the implement 300.

[0060] See appendix Figures 9 to 11 The second locking mechanism 315 is disposed on the upper top plate 3121, and a locking hole 3122 is provided on the sub-platform 312, with the locking hole 3122 located above the upper top plate 3121. The distance from the locking hole 3122 to the rotation point of the sub-platform 312 and the main platform 311 is equal to the distance from the second locking mechanism 315 to the rotation point of the sub-platform 312 and the main platform 311. When the first hooking member 2 is raised to abut against the upper top plate 3121 and the locking hole 3122 coincides with the second locking mechanism 315, it means that the tractor 100 and the implement 300 are located on the same axis. At this time, the second locking mechanism 315 passes through the locking hole 3122, which can restrict the relative rotation between the main platform 311 and the sub-platform 312.

[0061] See appendix Figure 12 The second locking mechanism 315 includes a sleeve 3151 that penetrates the upper top plate 3121. A first column 3152, a second elastic element 3153, and a second column 3154 are disposed within the sleeve 3151. The first column 3152 is located below the upper top plate 3121, the second column 3154 is located above the upper top plate 3121, and the second elastic element 3153 is located between the first column 3152 and the second column 3154. A limiting portion 3155 is provided at the bottom of the sleeve 3151, the lower part of the first column 3152 passes through the limiting portion 3155, and a limiting protrusion is provided at the top of the first column 3152 and located on the limiting portion 3155.

[0062] See appendix Figure 9 The auxiliary platform 312 is provided with a lifting lug 3123, which is located above the locking hole 3122. On the one hand, it can cooperate with the lifting device to realize the transfer of the machine 300, and on the other hand, it can play a restrictive role to prevent the second locking mechanism 315 from falling off.

[0063] Before the connection is made, under the action of gravity, the lower part of the first column 3152 is located outside the limiting part 3155, the upper part of the second column 3154 is located inside the sleeve 3151, and the sleeve 3151 is located below the upper top plate 3121, so that the main platform 311 can rotate relative to the auxiliary platform 312.

[0064] During the connection process, the first connection component 2 moves upward until it abuts against the limiting part 3155. The first connection component 2 pushes the first column 3152 to move upward along the sleeve 3151. At this time, the sleeve 3151 is located below the upper top plate 3121. The upper top plate 3121 restricts the upward movement of the second column 3154. The first column 3152 compresses the second elastic element 3153, and the second elastic element 3153 continuously stores energy.

[0065] After the attachment is completed, the lifter 1 drives the attachment device 200 and the implement 300 to continue lifting until the implement 300 is off the ground. The output ends of the two second hydraulic cylinders 27 act on the auxiliary platform 312, causing the auxiliary platform 312 and the implement 300 to rotate relative to the main platform 311 until the tractor 100 and the implement 300 are on the same axis, achieving alignment between the tractor 100 and the implement 300. At this time, the second locking mechanism 315 is located at the locking hole 3122, and the second elastic element 3153 pushes the second column 3154 to embed into the locking hole 3122, thereby locking the angle between the main platform 311 and the auxiliary platform 312.

[0066] When the tractor 100 uses the lifting device 1 to assemble the implement 300, it is necessary not only to connect the implement 300 with the tractor 100, but also to connect the hydraulic circuit inside the implement 300 with the hydraulic circuit inside the tractor 100 so that the tractor 100 can control the implement 300. The mounting device 200 also includes a hydraulic quick-change mechanism 4.

[0067] The hydraulic quick-change mechanism 4 includes a first connector 41 on the first body part 21 and a second connector 42 on the second body part 31. The first connector 41 and the second connector 42 are quick-change connectors. The first connector 41 can be connected to the second connector 42. The first connector 41 is connected to the hydraulic output connector pipeline of the tractor 100, and the second connector 42 is connected to the working cylinder of the implement 300 to realize the oil supply and control of the working cylinder in the implement 300.

[0068] See appendix Figure 14The first connector 41 is disposed on the attachment bracket 43, the attachment bracket is fixed on the first body part 21, the first connector 41 is disposed on the mounting plate 44, the attachment bracket 43 is provided with a third hydraulic cylinder 45 arranged in the front-rear direction, and the third hydraulic cylinder 45 pushes the mounting plate 44 to realize the connection of the first connector 41 and the second connector 42.

[0069] See appendix Figure 15 The second connector 42 is disposed on the elastic component 46, which includes: a first bracket 461, a second bracket 463, a third bracket 465, a third elastic element 466, and a fourth elastic element 467. The first bracket 461 is disposed on the main platform 311, and a first mounting post 462 is provided on the first bracket 461 along the left-right direction. The second bracket 463 is disposed on the first mounting post 462, and a second mounting post 464 is provided on the second bracket 463 along the vertical direction. The third bracket 465 is disposed on the second mounting post 464, and the second connector 42 is disposed on the third bracket 465. The third elastic element 466 is sleeved on the second mounting post 464 and located between the first bracket 461 and the second bracket 463. The fourth elastic element 467 is sleeved on the second mounting post 464 and located between the second bracket 463 and the third bracket 465.

[0070] At least two first mounting posts 462 are provided. The second bracket 463 is clearance-fitted with the first mounting post 462. When the front side of the second bracket 463 moves to the left and the rear side moves to the right, the second bracket 463 can rotate a predetermined angle in the vertical direction. Similarly, the third bracket 465 is clearance-fitted with the second mounting post 464, and the third bracket 465 can rotate a predetermined angle in the front-back direction. The magnitude of the rotation angle depends on the gap between the second bracket 463 and the first mounting post 462, and between the third bracket 465 and the second mounting post 464, ensuring both higher floating flexibility for the second connector 42 and preventing excessive movement of the second connector 42.

[0071] In other words, when the first connector 41 is driven by the third cylinder 45 to connect the first connector 41 to the second connector 42, the second connector 42 can move relative to the second body part 31 in the left and right directions and in the vertical direction, and rotate at a predetermined angle in the vertical direction and in the front and back directions to ensure the accuracy and stability of hydraulic docking. It can also counteract the wear on the connecting device caused by the shaking of the first hooking component 2 and the second hooking component 3 during docking or operation.

[0072] See appendix Figure 13 , 14The first connector 41 includes a first mounting base 411 disposed on a mounting plate 44, a quick-connect male connector 412 fixed on the first mounting base 411, and a second guide post 413 disposed on the first mounting base 411. The second connector 42 includes a quick-connect female connector 422 fixed on the second mounting base 421, and a second guide hole 421 disposed on the second mounting base 421 and cooperating with the second guide post 413. The distance from the second guide post 413 to the second guide hole 421 is greater than the distance from the quick-connect male connector 412 to the quick-connect female connector 422. The upper part of the second guide post 413 is conical. The second guide post 413 and the second guide hole 421 provide secondary guidance, further ensuring the accuracy and safety of the connection between the quick-connect male connector 412 and the quick-connect female connector 422.

[0073] In actual use, it is only necessary to ensure the connection stability of the first hooking component 2 and the second hooking component 3 to ensure the connection of the first connector 41 and the second connector 42. However, in order to avoid special situations such as excessive shaking of the machine 300 and to ensure the connection stability of the first connector 41 and the second connector 42, a third locking mechanism 47 is also provided between the first connector 41 and the second connector 42.

[0074] See appendix Figure 14 , 15 The third locking mechanism 47 includes a second locking tongue 471, a fifth elastic element 472, a limiting post 463, and a fourth hydraulic cylinder 474. The second connector 42 is provided with a limiting post 463. The second locking tongue 471 includes an integrally rotatable connecting rod portion 4711 and a hook portion 4712. The middle part of the connecting rod portion 4711 is rotatably mounted on the mounting plate 44. The hook portion 4712 is located at one end of the connecting rod portion 4711. The fifth elastic element 472 is located between the other end of the connecting rod portion 4711 and the mounting plate 44. The fifth elastic element 472 holds the hook portion 4712 engaged with the limiting post 463, thereby locking the first connector 41 and the second connector 42. The fourth hydraulic cylinder 474 drives the hook portion 4712 to disengage from the limiting post 463, thereby unlocking the first connector 41 and the second connector 42.

[0075] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A work vehicle characterized by comprising: include: A tractor, with the direction of its forward movement as the front, is equipped with a lift; Machinery; A mounting device, which enables the machine to be mounted on the lifting device; The mounting device includes: The first hooking component is hooked onto the lifter and can rise and fall synchronously with the lifter; the first hooking component includes a first body part and a first guide post disposed on the top of the first body part. The second hooking component is connected to the machine tool; the second hooking component includes a second body part and a first guide hole provided on the top of the second body part, the second body part can be sleeved on the outside of the first body part, and the first guide post can be fitted into the first guide hole; A first locking mechanism is used to fix the first hooking member and the second hooking member. The first locking mechanism includes locking grooves on both sides of the first body part, locking shafts on both sides of the second body part that can be locked in the locking grooves, and a limiting mechanism that restricts the locking shafts from disengaging from the locking grooves.

2. The work vehicle as described in claim 1, characterized in that, The second mounting component also includes a first guide plate and a second guide plate respectively disposed on both sides of the second body portion, and the left and right distance between the first guide plate and the second guide plate gradually decreases from front to back.

3. The work vehicle of claim 1, wherein, The second mounting component also includes a third guide plate and a fourth guide plate respectively disposed on the two inner sides of the second body part, and the left and right distance between the third guide plate and the fourth guide plate gradually decreases from bottom to top.

4. The work vehicle of claim 3, wherein The first mounting component also includes a fifth guide plate and a sixth guide plate respectively disposed on the two outer sides of the first body part, and the left and right distance between the fifth guide plate and the sixth guide plate gradually decreases from bottom to top.

5. The work vehicle of claim 1, wherein The upper part of the first guide post is a cone, and the diameter of the first guide hole matches the diameter of the lower bottom surface of the cone.

6. The work vehicle of claim 1, wherein The restrictive mechanism includes: The first locking tongue includes a first arm and a second arm that rotate integrally and form a predetermined angle. The connection point between the first arm and the second arm is rotatably disposed on the first body. The first arm is located on the movement trajectory of the locking shaft moving to the locking groove. A first elastic element is disposed between the second arm and the first body, and the first elastic element keeps the first arm in a state on the movement trajectory of the locking shaft to the locking groove.

7. The work vehicle of claim 6, wherein, The limiting mechanism further includes a first hydraulic cylinder, which is located between the second arm and the first body. The first hydraulic cylinder drives the first arm to move away from the locking shaft to the locking groove.

8. The work vehicle of claim 1, wherein, The locking groove includes a first groove plate and a second groove plate disposed on the first body part, and the left and right distance between the first groove plate and the second groove plate gradually decreases from front to back.

9. The work vehicle of claim 8, wherein, The first mounting component further includes two first fixing parts respectively disposed on both sides of the first body part and a second fixing part disposed on the first body part and located above the first fixing parts. The two second fixing parts are connected to the two pull rods of the lifter, and the first fixing part is connected to the pull rod of the lifter.

10. The work vehicle of claim 9, wherein, The first hanging member further comprises a first connector provided on the first body portion, and the second hanging member further comprises a second connector provided on the second body portion and capable of being connected with the first connector.

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