Semitrailer and agricultural machinery

Abstract

The utility model provides a semitrailer which comprises a cross beam, a plurality of telescopic supporting legs, a lifting device and a cargo compartment, the supporting legs are arranged on one side of the cross beam, one end of the lifting device is connected with the cross beam, the other end of the lifting device is connected with the cargo compartment, and the cargo compartment is connected with the cross beam. One end of the container can rotate around one end of the cross beam; the cross beam is further provided with a connecting hole playing a connecting role, and a detachable connecting piece is arranged in the connecting hole. The semitrailer of the structure is simple in structure and convenient to disassemble, the cargo box can be lifted and unloaded conveniently, the semitrailer can be arranged on a tractor according to needs during use, one end of the semitrailer can be supported through the supporting legs when the semitrailer is disassembled, and therefore the production cost and the use cost of the semitrailer are low. In addition, the utility model further provides an agricultural machine comprising the semitrailer.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, and particularly relates to a semi-trailer and agricultural machinery. Background Art

[0002] In recent years, with the continuous development of economy and technology, various structures of agricultural machinery, such as tractors, are more and more widely used in agricultural production activities.

[0003] Among the currently used agricultural machinery, the functions are relatively single. For example, a transport tractor can basically only be used for transportation, and a tractor for farming cannot be used for transportation. This results in low utilization rate of the equipment, high use cost, and causes great waste.

[0004] Therefore, how to provide a semi-trailer with a simple structure, which can be disassembled at any time and has a low use cost, and agricultural machinery including this semi-trailer has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a semi-trailer with a simple structure, which can be disassembled at any time and has a low use cost, and agricultural machinery including this semi-trailer.

[0006] The solution of the utility model is realized as follows: The utility model provides a semi-trailer, which includes a cross beam, a plurality of telescopic legs, a lifting device and a cargo box. The plurality of legs are arranged on one side of the cross beam. One end of the lifting device is connected to the cross beam, and the other end of the lifting device is connected to the cargo box. One end of the cargo box can rotate around one end of the cross beam. A connecting hole for connection is further provided on the cross beam, and a detachable connecting piece is arranged in the connecting hole. The semi-trailer with this structure has a relatively simple structure and is relatively convenient to disassemble. The cargo box can be lifted, and unloading is relatively convenient. When in use, it can be set on a tractor according to needs. When disassembled, one end of it can be supported by the legs. Therefore, its production and use costs are both relatively low.

[0007] Another technical solution of the utility model is that on the basis of the above, an extension sleeve fixedly arranged is further provided on the cross beam, a telescopic extension leg is arranged in the extension sleeve, and a plurality of pin holes for fixing are further provided on the extension leg.

[0008] Another technical solution of the utility model is that on the basis of the above, one end of the leg is fixedly connected to the end of the extension leg.

[0009] Another technical solution of the utility model is that on the basis of the above, the leg includes a telescopic sleeve and a telescopic arm telescopically arranged in the telescopic sleeve, and the extension leg is fixedly connected to the telescopic sleeve.

[0010] Another technical solution of the present utility model lies in that on the basis of the above, a handle is provided at one end of the telescopic arm. When the handle is rotated, the telescopic arm extends or retracts within the telescopic sleeve.

[0011] Another technical solution of the present utility model lies in that on the basis of the above, the number of the outriggers is two, and the two outriggers are respectively arranged at both ends of the extension sleeve.

[0012] Another technical solution of the present utility model lies in that on the basis of the above, the cargo box includes a vehicle frame, the lifting device is a lifting oil cylinder, one end of the lifting oil cylinder is connected to the cross beam, and the other end of the lifting oil cylinder is movably connected to the vehicle frame.

[0013] On the other hand, the present utility model also provides an agricultural machine, which includes a tractor and a semi-trailer detachably arranged at one end of the tractor, and the semi-trailer is the semi-trailer as described above.

[0014] Another technical solution of the present utility model lies in that on the basis of the above, the tractor includes a frame, and the cross beam of the semi-trailer is detachably and fixedly connected to the frame through the connecting piece.

[0015] Another technical solution of the present utility model lies in that on the basis of the above, the tractor further includes a front axle and a rear axle arranged at both ends of the frame, a four-wheel drive transmission shaft is further arranged between the front axle and the rear axle, and a trailer transmission shaft is further arranged between the rear axle and the semi-trailer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0017] Figure 1 is a schematic structural diagram of an agricultural machine of the present utility model;

[0018] Figure 2 is a schematic structural diagram of a semi-trailer of the present utility model;

[0019] Figure 3 is Figure 2 a partial structural diagram of the semi-trailer in ;

[0020] Figure 4 is Figure 1 a structural diagram of the outrigger in.

[0021] The corresponding relationship of the reference numerals is as follows:

[0022] 1 Cross beam 2 Connecting hole 3 Cargo box

[0023] 4 Lifting cylinder, 5 Frame, 6 Wheel

[0024] 7 Shock-absorbing steel plate, 8 Leg

[0025] 81 Handle, 82 Telescopic sleeve, 83 Telescopic arm

[0026] 84 Extension sleeve, 85 Extension leg, 86 Pin hole

[0027] 9 Machine head, 10 Front wheel, 11 Four-wheel drive transmission shaft

[0028] 12 Connecting piece, 13 Rear wheel, 14 Pull rod Detailed implementation manner

[0029] The present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model. In addition, those skilled in the art can make corresponding combinations of the features in the embodiments and different embodiments in this document according to the description of this document.

[0030] The embodiments of the present utility model are as follows. Please refer to Figures 1 to 4 The agricultural machinery, semi-trailer and its components shown. The semi-trailer specifically includes a cross beam 1, a plurality of telescopic legs 8, a lifting device and a cargo compartment 3. The plurality of legs 8 are arranged on one side of the cross beam 1. One end of the lifting device, that is, Figure 2 The lower end shown is connected to the cross beam 1. The other end of the lifting device, that is, the upper end shown in the figure, is connected to the cargo compartment 3. One end of the cargo box, that is, Figure 2 The right end shown is movably connected and can rotate around the right end of the cross beam 1. The cross beam 1 is also provided with a connecting hole 2 for connection. A detachable connecting piece 12 is arranged in the connecting hole 2. The semi-trailer with this structure has a relatively simple structure and is also relatively convenient to disassemble. The cargo box can be lifted, and unloading is more convenient. When in use, it can be set on a tractor according to needs. When disassembled, one end of it can be supported by the leg 8. Therefore, its production and use costs are both relatively low.

[0031] On the basis of the above embodiment, in another embodiment of the present utility model, as Figures 2 to 3 shown, the cross beam 1 is also fixedly provided with an extension sleeve 84. An extendable extension leg 85 is arranged in the extension sleeve 84. A plurality of pin holes 86 for fixing are also arranged on the extension leg 85. A fixing pin can be arranged in the pin hole 86. Through the fixing pin, the extension leg 85 can be fixedly arranged in the extension sleeve 84.

[0032] On the basis of the above embodiment, in another embodiment of the present utility model, as Figures 2 to 4 shown, one end of the leg 8, that is, Figure 4 the upper end shown, is fixedly connected to the end of the extension leg 85. The connection method can specifically be welding, etc.

[0033] Based on the above embodiments, in another embodiment of the present utility model, as Figures 2 to 4 shown, the outrigger 8 includes a telescopic sleeve 82 and a telescopic arm 83 telescopically arranged within the telescopic sleeve 82. The extension leg 85 is fixedly connected to the telescopic sleeve 82. The arrangement between the telescopic arm 83 and the telescopic sleeve 82 is diverse and will not be specifically limited herein. It should be noted that in other embodiments, the outrigger 8 can also be a telescopic oil cylinder.

[0034] Based on the above embodiments, in another embodiment of the present utility model, as Figures 2 to 4 shown, at one end of the telescopic arm 83, that is, Figure 4 as shown in the upper end, a handle 81 is provided. When the handle 81 is rotated, the telescopic arm 83 can extend or retract within the telescopic sleeve 82. When, for example, the semi-trailer is arranged at the rear end of the tractor, at this time, the outrigger 8 needs to retract and fold up. And when the semi-trailer is removed from the tractor, the outrigger 8 extends to support the trailer frame 5. In addition, a hook can also be provided on the cross beam 1. When the outrigger 8 is folded up, the outrigger 8 can be arranged on the hook to prevent interference with the movement of the semi-trailer.

[0035] Based on the above embodiments, in another embodiment of the present utility model, as Figures 2 to 4 shown, the number of outriggers 8 is specifically two, and the two outriggers 8 are respectively arranged at both ends of the extension sleeve 84.

[0036] Based on the above embodiments, in another embodiment of the present utility model, as Figure 2 shown, the cargo compartment 3 includes a vehicle frame 5, and the lifting device is a lifting oil cylinder 4. One end of the lifting oil cylinder 4, that is, the lower end shown in the figure, is connected to the cross beam 1, and the other end of the lifting oil cylinder 4, that is, the upper end shown in the figure, is movably connected to the vehicle frame 5. When the lifting oil cylinder 4 extends and retracts, it drives the cargo compartment 3 to rise or fall, thus facilitating unloading.

[0037] This structure of the semi-trailer has a relatively simple structure and is also relatively convenient to disassemble. The cargo box can be lifted, and unloading is relatively convenient. When in use, it can be arranged on the tractor according to needs. When disassembled, one end of it can be supported by the outrigger 8. Therefore, both its production and use costs are relatively low.

[0038] On the other hand, the present utility model also proposes an agricultural machine, including a tractor and a semi-trailer detachably arranged at one end of the tractor. The semi-trailer is specifically the semi-trailer as described above.

[0039] Based on the above embodiments, in another embodiment of the present utility model, as Figure 1 shown, the tractor includes a frame. The cross beam 1 of the semi-trailer is detachably and fixedly connected to the frame through a connecting member 12. For the connecting member 12, it can specifically be a pin, and the number of pins is two, which need to be arranged on both cross beams 1.

[0040] Based on the above embodiments, in another embodiment of the present utility model, as Figure 1 shown, the tractor further includes a front axle and a rear axle disposed at both ends of the frame. Two front wheels 10 are provided at both ends of the front axle, and two rear wheels 13 are provided at both ends of the rear axle. A four-wheel drive transmission shaft 11 is further provided between the front axle and the rear axle. The power of the engine is transmitted to the rear axle through the four-wheel drive transmission shaft 11 to form a four-wheel drive function. In addition, a trailer drive shaft (not shown in the figure) is further provided between the rear axle and the semi-trailer. The power of the rear axle is transmitted to the semi-trailer through the trailer drive shaft. Shock-absorbing steel plates 7 are provided on both sides of the semi-trailer. Two wheels 6 on the semi-trailer are respectively disposed on one side of the shock-absorbing steel plates 7. After the power from the rear axle is transmitted to the semi-trailer, the semi-trailer also has driving force, and overall a six-wheel drive function is formed, further improving the driving ability and passability of the agricultural machinery. In addition, a tractor head 9 is further provided at the front end of the tractor, which specifically includes an engine, a gearbox, and a cab. A pull rod 14 is further provided at the bottom of the semi-trailer. The pull rod 14 is used for hanging implements, and its specific structure can refer to existing and improved technologies and will not be elaborated here.

[0041] The agricultural machinery with this structure correspondingly has the advantages of the above semi-trailer.

[0042] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A semi-trailer, characterized in that: The semi-trailer comprises a crossbeam, a plurality of retractable legs, a lifting device and a cargo box, wherein the plurality of legs are arranged on one side of the crossbeam, one end of the lifting device is connected to the crossbeam, the other end of the lifting device is connected to the cargo box, and one end of the cargo box can rotate around one end of the crossbeam; The crossbeam is also provided with a connecting hole for connecting, and a detachable connecting piece is arranged in the connecting hole.

2. The semitrailer according to claim 1, characterized in that: The crossbeam is also provided with a fixed extension sleeve, in which a retractable extension leg is arranged, and the extension leg is also provided with a plurality of pin holes for fixing.

3. The semitrailer according to claim 2, characterized in that: One end of the supporting leg is fixedly connected to the end of the extending leg.

4. The semitrailer according to claim 3, characterized in that: The supporting leg comprises a telescopic sleeve and a telescopic arm telescopically arranged in the telescopic sleeve, and the extending leg is fixedly connected to the telescopic sleeve.

5. The semitrailer according to claim 4, characterized in that: A handle is provided at one end of the telescopic arm. When the handle is rotated, the telescopic arm extends or retracts in the telescopic sleeve.

6. The semitrailer according to claim 5, characterized in that: The number of the supporting legs is two, and the two supporting legs are respectively arranged at two ends of the extension sleeve.

7. The semitrailer according to claim 6, characterized in that: The cargo compartment comprises a frame, and the lifting device is a lifting cylinder, one end of the lifting cylinder is connected to the cross beam, and the other end of the lifting cylinder is movably connected to the frame.

8. An agricultural machine, comprising a tractor and a semitrailer detachably mounted on one end of the tractor, characterized in that: The semitrailer is the semitrailer according to any one of claims 1 to 7.

9. The agricultural machine according to claim 8, characterized in that: The tractor comprises a frame, and the crossbeam of the semi-trailer is detachably fixedly connected to the frame via the connecting piece.

10. The agricultural machine according to claim 9, characterized in that: The tractor further comprises a front axle and a rear axle arranged at both ends of the frame, a four-wheel drive transmission shaft is arranged between the front axle and the rear axle, and a trailer transmission shaft is arranged between the rear axle and the semi-trailer.

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