CN212667337U - Double-landing-leg structure of semitrailer - Google Patents
Double-landing-leg structure of semitrailer Download PDFInfo
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- CN212667337U CN212667337U CN202021558613.4U CN202021558613U CN212667337U CN 212667337 U CN212667337 U CN 212667337U CN 202021558613 U CN202021558613 U CN 202021558613U CN 212667337 U CN212667337 U CN 212667337U
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- pin shaft
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
A semitrailer double-leg structure comprises a folding leg and an electro-hydraulic leg; the folding supporting leg comprises a folding supporting leg support, a folding supporting leg fixing pin shaft, a folding supporting leg limiting pin shaft and a folding supporting leg main body; the foldable support leg support is welded on a girder of the semitrailer, and the upper end of the foldable support leg main body is connected with the foldable support leg support through a foldable support leg fixing pin shaft; the folding support leg support comprises a limiting hole, and the limiting hole and the limiting pin shaft jointly act to complete limiting of the folding support leg; the electro-hydraulic support legs are connected at the traction position at the bottom of the cargo compartment.
Description
Technical Field
The utility model relates to a trailer field especially relates to a dual landing leg structure of semitrailer.
Background
A trailer refers to a vehicle that is towed by a car without power drive per se. A combination of a car (truck or tractor, forklift) and one or more trailers. The truck and the tractor are driving sections of the automobile train, and are called as a main vehicle, and the driven section towed by the main vehicle is called as a trailer.
The semitrailer now becomes the dominant force army of road transport. In the semitrailer transportation industry, the proportion of throwing, hanging and transporting is continuously improved in order to improve the efficiency. The hydraulic support legs are mostly used in semi-hanging swing-hanging transportation, and the working efficiency is higher than that of the traditional hand-operated support legs. However, in the actual use process, due to the sealing characteristic of the hydraulic circuit, the support legs can be uncontrollably lowered after the pressure leaks within 2-3 hours after the parking time exceeds. When the next tractor pulls the trailer, the height of the traction seat from the ground is too low, and the direct connection between the main trailer and the trailer cannot be realized; because the main trailer and the trailer are not combined, the hydraulic support leg can not be lifted by electrifying, and the hydraulic support leg can only be lifted by the circuit communicated in a wire electrification mode, so that the ground height of the traction seat meets the requirement of connection of the main trailer and the trailer, and then the main trailer and the trailer are connected. Such an approach is obviously time consuming and laborious.
SUMMERY OF THE UTILITY MODEL
Through market research back, based on this, it is necessary to get rid of at present and hang in the uncontrollable defect problems such as fall of hydraulic leg and propose the dual landing leg structure of semitrailer to have got rid of, the utility model discloses the effectual defect of getting rid of hanging in the hydraulic leg device existence that has solved at present, the design of each position is simpler, optimized, reasonable.
A semitrailer double-leg structure comprises a folding leg and an electro-hydraulic leg; the folding supporting leg comprises a folding supporting leg support, a folding supporting leg fixing pin shaft, a folding supporting leg limiting pin shaft and a folding supporting leg main body; the foldable support leg support is welded on a girder of the semitrailer, and the upper end of the foldable support leg main body is connected with the foldable support leg support through a foldable support leg fixing pin shaft; the folding support leg support comprises a limiting hole, and the limiting hole and the limiting pin shaft jointly act to complete limiting of the folding support leg; the electro-hydraulic support legs are connected at the traction position at the bottom of the cargo compartment.
The limiting pin shaft penetrates through the carriage bottom fixing plate and is movably connected with the limiting pin, the limiting pin shaft is pulled out during use, the limiting pin shaft of the folding leg of the semitrailer is pulled out, the folding leg main body is put down, the limiting pin shaft of the folding leg is inserted into the limiting hole of the folding leg support, the rear side of the folding leg main body leans against the side portion of the folding leg support, and the folding leg support and the limiting pin shaft of the folding leg are limited together.
The folding leg main body is a hard support rod with any structure.
The limit pin shaft of the folding supporting leg is in a quick insertion type or a buckling type.
The lower end of the folding supporting leg main body further comprises an iron plate, the iron plate is in contact with the ground and is adjusted according to the gradient of the ground.
When the tractor needs to get rid of the semitrailer in the place, the operation electro-hydraulic landing leg props up the semitrailer, slightly surpasss owner, when hanging separation traction seat terrain clearance H, takes out the spacing round pin axle of the folding landing leg of semitrailer, puts down folding landing leg main part, inserts the spacing hole of folding landing leg support to the spacing round pin axle of folding landing leg again, and folding landing leg main part rear side is leaned on the lateral part at folding landing leg support, and folding landing leg support realizes spacingly with the spacing round pin axle of folding landing leg jointly.
After the semitrailer parking time overlength, let in hydraulic leg's the hydraulic circuit, hydraulic leg can lose the supporting role, the utility model discloses can realize that folding landing leg gets into the operating condition who supports. The scheme is simple to operate, high in efficiency, simple in structure, convenient and reliable, and the design of each part is simpler, optimized and reasonable.
Drawings
FIG. 1 is a view showing a support state of a folding leg;
fig. 2 is a folding state diagram of the folding leg.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1, the utility model relates to a semitrailer dual-leg structure, the dual-leg comprises a folding leg 1 and an electro-hydraulic leg 6, the folding leg 1 comprises a folding leg support 2, a folding leg fixing pin 3, a folding leg limiting pin 4 and a folding leg main body 5; the folding supporting leg support 2 is welded on a girder of the semitrailer, and the upper end of the folding supporting leg main body 5 is connected with the folding supporting leg support 2 through a folding supporting leg fixing pin shaft 3. When the tractor needs to get rid of the semitrailer in the place, operation electronic hydraulic leg 6 props up the semitrailer, slightly surpasss owner, when hanging separation traction seat terrain clearance H, take out the spacing round pin axle 4 of folding landing leg of semitrailer 1, put down folding landing leg main part 5, insert the spacing hole of folding landing leg support 2 to folding landing leg spacing round pin axle 4 again, 5 rear sides of folding landing leg main part lean on the lateral part at folding landing leg support 2, folding landing leg support 2 realizes spacingly with folding landing leg spacing round pin axle 4 jointly. When the semitrailer is parked for too long time, the hydraulic circuit of the electric hydraulic support leg 6 is drained, and the hydraulic support leg loses the supporting function, so that the folding support leg enters a supporting working state; when the tractor needs to be connected with a semi-trailer thrown on a site, the tractor is directly backed up and connected with the semi-trailer into position. The semitrailer is supported by the electric hydraulic support legs which are operated, the semitrailer slightly exceeds the main structure, and when the semitrailer is hung and separated from the ground, the folding support leg limiting pin shaft 4 of the folding support legs of the semitrailer is pulled out, the folding support legs 1 are folded, the folding support leg limiting pin shaft 4 is inserted into the limiting hole of the folding support leg support seat 2, then the electric hydraulic support legs 6 are operated to be completely folded, the tops of the folding support leg main bodies 5 are leaned on the tops of the folding support leg support seats 2, and the folding support leg support seats 2 and the folding support leg limiting. And the semi-trailer train enters a normal running state. The invention aims to provide a folding support leg structure of a semitrailer, which is simple in operation, high in efficiency, simple in structure, convenient and reliable. The problem that the ground height of the traction seat is not enough when the main and hanging connection is performed next time due to the fact that the hydraulic supporting legs automatically descend because the pressure leaks when the parking time exceeds 2-3 hours due to the sealing characteristic of the hydraulic loop can be solved. The following describes the double-leg structure of a semitrailer of the present invention in further detail with reference to the accompanying drawings.
The specific working principle is as follows: when the tractor needs to throw the semitrailer to the field as shown in fig. 1-2, the electric hydraulic support legs 6 are operated to support the semitrailer and slightly exceed the ground clearance of the main and hanging separation traction seats, the folding support leg limiting pin shafts 4 of the folding support legs of the semitrailer are drawn out, the folding support leg main body 5 is put down, and then the folding support leg limiting pin shafts 4 are inserted into the limiting holes of the folding support leg support 2. The rear side of the folding supporting leg main body 5 leans against the side part of the folding supporting leg support 2, and the folding supporting leg support 2 and the folding supporting leg limiting pin shaft 4 jointly realize limiting. When the semitrailer is parked for too long time, the hydraulic circuit of the hydraulic support leg is drained, and the hydraulic support leg can lose the supporting function, so that the foldable support leg can enter a supporting working state. Therefore, the foldable support leg of the semitrailer is simple in operation, high in efficiency, simple in structure, convenient and reliable.
When the tractor needs to be connected with a semi-trailer thrown on a site, the tractor is directly backed up and connected with the semi-trailer into position. The semitrailer is supported by operating the electric hydraulic support legs, slightly exceeds the main part, and when the ground clearance of the traction seat is hung and separated, the folding support leg limiting pin shaft 4 of the folding support leg 1 of the semitrailer is drawn out, the folding support leg main body 5 is packed up, the folding support leg limiting pin shaft 4 is inserted into the limiting hole of the folding support leg support seat 2, then the hydraulic support leg is completely packed up by operating, the top of the folding support leg main body 5 is leaned on the top of the folding support leg support seat 2, and the folding support leg support seat 2 and the folding support leg limiting pin shaft 4. And the semi-trailer train enters a normal running state. Therefore, the foldable support leg of the semitrailer is simple in operation, high in efficiency, simple in structure, convenient and reliable.
The folding leg body 5 mentioned in the invention can be a hard support rod with any structure; the present apparatus can be applied in a variety of similar scenarios.
The folding supporting leg support 2 can be designed into any structure, and mainly aims to realize the rotation of the folding supporting leg 1 in the folding supporting leg support 2 and realize the functions of putting down and folding up the folding supporting leg 1.
The limit pin shaft 4 of the folding support leg can be in a fast-inserting type structure, a buckling type structure and the like. Mainly for realizing the locking and limiting functions of the folding supporting leg 1 in the folding supporting leg support 2 after being put down and folded.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A semitrailer double-leg structure is characterized in that the double-leg comprises a folding leg and an electric hydraulic leg; the folding supporting leg comprises a folding supporting leg support, a folding supporting leg fixing pin shaft, a folding supporting leg limiting pin shaft and a folding supporting leg main body; the foldable support leg support is welded on the semitrailer girder, and the upper end of the foldable support leg main body is connected with the foldable support leg support through a foldable support leg fixing pin shaft; the folding support leg support is also provided with a limiting hole, and the limiting hole and the limiting pin roll jointly act to limit the folding support leg; the electro-hydraulic support legs are connected at the traction position at the bottom of the cargo compartment.
2. The semitrailer dual-leg structure according to claim 1, is characterized in that a limiting pin shaft penetrates through a carriage bottom fixing plate and is movably connected with a limiting pin, the limiting pin shaft is pulled out during use, a folding leg limiting pin shaft of a folding leg of the semitrailer is pulled out, a folding leg main body is put down, the folding leg limiting pin shaft is inserted into a limiting hole of a folding leg support, the rear side of the folding leg main body leans against the side portion of the folding leg support, and the folding leg support and the folding leg limiting pin shaft realize limiting together.
3. A semitrailer double leg structure according to claim 1, characterized in that said folding leg body is a rigid support bar of any construction.
4. A semitrailer dual leg structure according to claim 1, characterized in that said folding leg limiting pin is of the quick-insertion or snap-in type.
5. A semitrailer dual leg structure according to claim 2, characterized in that the lower end of the folding leg body further comprises an iron plate, which is in contact with the ground and is adjusted according to the gradient of the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558613.4U CN212667337U (en) | 2020-07-31 | 2020-07-31 | Double-landing-leg structure of semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558613.4U CN212667337U (en) | 2020-07-31 | 2020-07-31 | Double-landing-leg structure of semitrailer |
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| Publication Number | Publication Date |
|---|---|
| CN212667337U true CN212667337U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021558613.4U Active CN212667337U (en) | 2020-07-31 | 2020-07-31 | Double-landing-leg structure of semitrailer |
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| CN (1) | CN212667337U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937405A (en) * | 2021-03-30 | 2021-06-11 | 新石器慧通（北京）科技有限公司 | Truck carriage and truck |
| CN113859094A (en) * | 2021-11-16 | 2021-12-31 | 中国人民解放军32181部队 | Self-loading and unloading type emergency repair vehicle and use method thereof |
-
2020
- 2020-07-31 CN CN202021558613.4U patent/CN212667337U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937405A (en) * | 2021-03-30 | 2021-06-11 | 新石器慧通（北京）科技有限公司 | Truck carriage and truck |
| CN113859094A (en) * | 2021-11-16 | 2021-12-31 | 中国人民解放军32181部队 | Self-loading and unloading type emergency repair vehicle and use method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231026 Address after: 017000 room 701, 7 / F, office building 3, burdong Avenue, Dongsheng District, Ordos City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Zhongkai Special Vehicle Manufacturing Co.,Ltd. Address before: 017099 No.12, Yimei Road, Dongsheng District, Ordos City, Inner Mongolia Autonomous Region Patentee before: Zhao Bin |
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| TR01 | Transfer of patent right |