CN216886966U - Semitrailer traction seat - Google Patents
Semitrailer traction seat Download PDFInfo
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- CN216886966U CN216886966U CN202220845196.4U CN202220845196U CN216886966U CN 216886966 U CN216886966 U CN 216886966U CN 202220845196 U CN202220845196 U CN 202220845196U CN 216886966 U CN216886966 U CN 216886966U
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- rocker
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- hinged
- lifting
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- 238000013016 damping Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The utility model relates to the field of saddle type traction connectors, in particular to a semitrailer traction seat capable of lifting. The lifting frame comprises a traction seat body and a lifting frame, wherein the lifting frame comprises a platform, a front rocker, a rear rocker and a lifting cylinder, the traction seat body is fixedly connected to the platform, the upper end of the front rocker is hinged to the front end of the platform, the lower end of the front rocker is hinged to a frame, the upper end of the rear rocker is hinged to the rear end of the platform, the lower end of the rear rocker is hinged to the frame, and the front rocker and the rear rocker are arranged in parallel; the lifting cylinder is hinged between the platform and the frame, the included angle alpha between the lifting cylinder and the frame is larger than the included angle beta between the front rocker and the frame, and the angle alpha is smaller than or equal to 90 degrees; the wedge-shaped block is arranged below the front rocker or/and the rear rocker in a manner that the tip of the wedge-shaped block is close to the front rocker or/and the rear rocker. The utility model aims to solve the technical problem of the prior art and provides a lifting traction seat with small installation space and good bearing capacity.
Description
Technical Field
The utility model relates to the field of saddle type traction connectors, in particular to a semitrailer traction seat capable of lifting.
Background
In order to enable the tractor to pull semitrailers of different heights through the fifth wheel, technicians have developed fifth wheels with lifting mechanisms. The fixed height lifting type traction seat has two heights, namely a lower height and a higher height, and can be used for towing a semitrailer with the two heights. In the prior art, the fixed-height lifting type traction seat has the problems of large installation space, poor bearing capacity and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a lifting traction seat with small installation space and good bearing capacity aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
a semitrailer traction seat is characterized by comprising a traction seat body and a lifting frame, wherein the lifting frame comprises a platform, a front rocker, a rear rocker and a lifting cylinder, the traction seat body is fixedly connected to the platform, the upper end of the front rocker is hinged to the front end of the platform, the lower end of the front rocker is hinged to a frame, the upper end of the rear rocker is hinged to the rear end of the platform, the lower end of the rear rocker is hinged to the frame, and the front rocker and the rear rocker are arranged in parallel; the lifting cylinder is hinged between the platform and the frame, an included angle alpha between the lifting cylinder and the frame is larger than an included angle beta between the front rocker and the frame, and alpha is smaller than or equal to 90 degrees;
the wedge-shaped block is arranged below the front rocker or/and the rear rocker in a manner that the tip end of the wedge-shaped block is close to the front rocker or/and the rear rocker.
Preferably, the upper end of the wedge-shaped block is provided with a damping pad.
Preferably, the lifting cylinder is disposed between the front rocker and the rear rocker.
Preferably, at least one front rocker is arranged, and at least one rear rocker is arranged.
Preferably, the frame is provided with a groove extending in the front-back direction, the bottom ends of the front rocker, the rear rocker and the lifting cylinder are arranged in the groove, and the wedge block is also arranged in the groove.
Preferably, the lifting cylinder is a cylinder.
The utility model has the beneficial effects that:
according to the utility model, the lifting frame forms a stable supporting structure by setting the included angle alpha between the lifting cylinder and the frame to be larger than the included angle beta between the front rocker and the frame; the front rocker, the rear rocker and the lifting cylinder of the lifting frame are all arranged between the platform and the frame, so that the device occupies a smaller installation space on the frame;
when the lifting cylinder extends, the platform and the traction seat body on the platform are lifted, the maximum stroke of the lifting cylinder is preset according to the height to which the traction seat is lifted, and the lifting cylinder is in a vertical state when extending to the maximum stroke, so that the best bearing effect is achieved; when the lifting cylinder is shortened, the front rocker or the rear rocker swings downwards until the front rocker or the rear rocker presses on the wedge-shaped block, and the wedge-shaped block plays a supporting role on the front rocker or/and the rear rocker, so that the lifting cylinder has good bearing capacity. Furthermore, the damping pad is arranged at the upper end of the wedge-shaped block, so that the impact and the vibration of the front rocker or/and the rear rocker on the wedge-shaped block when the front rocker or/and the rear rocker fall are relieved.
Drawings
FIG. 1 is a schematic view of the present invention showing the extended configuration of the lift cylinder;
FIG. 2 is a schematic view of the present invention with the lift cylinder retracted;
in the figure: 1. the lifting device comprises a traction seat body, 2 a lifting frame, 20 a platform, 21 a front rocker, 22 a rear rocker, 23 a lifting cylinder, 3 a frame and 4 a wedge-shaped block.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.
As shown in fig. 1 and 2, the semitrailer fifth wheel of this embodiment includes a fifth wheel body 1 and a crane 2. The crane 2 comprises a platform 20, a front rocker 21, a rear rocker 22 and a lifting cylinder 23.
The traction seat body 1 is fixedly connected on the platform 20. The upper end of the front rocker 21 is hinged at the front end of the platform 20, the lower end is hinged on the frame 3, the upper end of the rear rocker 22 is hinged at the rear end of the platform 20, the lower end is hinged on the frame 3, and the front rocker 21 and the rear rocker 22 are arranged in parallel; preferably, at least one front rocker 21 is provided, and at least one rear rocker 22 is provided. In the present embodiment, the platform 20 is rectangular, and the two front rockers 21 and the two rear rockers 22 are respectively disposed at four corners of the platform 20.
The lifting cylinder 23 is hinged between the platform 20 and the frame 3, an included angle alpha between the lifting cylinder 23 and the frame 3 is larger than an included angle beta between the front rocker 21 and the frame 3, and alpha is smaller than or equal to 90 degrees; preferably, the lifting cylinder 23 is arranged between the front rocker 21 and the rear rocker 22. Preferably, the lifting cylinder 23 is a pneumatic cylinder. In this embodiment, the upper end of the lifting cylinder 23 is hinged to the middle of the platform 20.
The utility model also comprises a wedge-shaped block 4 arranged at the upper end of the frame 3, and the wedge-shaped block 4 is arranged below the front rocker 21 or/and the rear rocker 22 in a mode that the tip end of the wedge-shaped block is close to the front rocker 21 or/and the rear rocker 22. Preferably, the upper end of the wedge-shaped block 4 is provided with a damping pad, and the damping pad can play a role in absorbing vibration.
In a preferred embodiment, the frame 3 is provided with a groove extending in the front-rear direction, the bottom ends of the front rocker 21, the rear rocker 22 and the lifting cylinder 23 are arranged in the groove, and the wedge block 4 is also arranged in the groove.
When the traction seat body 1 needs to be lifted, the lifting cylinder 23 is started, the front rocker 21 and the rear rocker 22 rotate upwards along with the extension of the lifting cylinder 23, and the platform 20 and the traction seat body 1 are lifted. As shown in fig. 1, when the lifting cylinder 23 is rotated to the vertical state, the fifth wheel body 1 is lifted to the highest position. The adjustment of the uppermost position can be achieved by changing the maximum stroke of the lifting cylinder 23. Because the included angle alpha between the lifting cylinder 23 and the frame 3 is larger than the included angle beta between the front rocker 21 and the frame 3, a stable supporting structure is formed between the lifting cylinder 23 and the front rocker 21 and the rear rocker 22.
When the traction seat body 1 needs to be dropped, as shown in fig. 2, the lifting cylinder 23 is contracted, and the front rocker 21 and the rear rocker 22 swing downward and are supported on the wedge 4. The wedge block 4 plays a supporting role for the front rocker 21 or/and the rear rocker 22, so that the utility model has good bearing capacity.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (6)
1. A semitrailer traction seat is characterized by comprising a traction seat body (1) and a lifting frame (2), wherein the lifting frame (2) comprises a platform (20), a front rocker (21), a rear rocker (22) and a lifting cylinder (23), the traction seat body (1) is fixedly connected to the platform (20), the upper end of the front rocker (21) is hinged to the front end of the platform (20), the lower end of the front rocker (21) is hinged to a frame (3), the upper end of the rear rocker (22) is hinged to the rear end of the platform (20), the lower end of the rear rocker (22) is hinged to the frame (3), and the front rocker (21) and the rear rocker (22) are arranged in parallel; the lifting cylinder (23) is hinged between the platform (20) and the frame (3), an included angle alpha between the lifting cylinder (23) and the frame (3) is larger than an included angle beta between the front rocker (21) and the frame (3), and alpha is smaller than or equal to 90 degrees;
the bicycle frame is characterized by further comprising a wedge-shaped block (4) arranged at the upper end of the bicycle frame (3), wherein the wedge-shaped block (4) is arranged below the front rocker (21) or/and the rear rocker (22) in a mode that the tip end of the wedge-shaped block is close to the front rocker (21) or/and the rear rocker (22).
2. The semitrailer fifth wheel according to claim 1, characterized in that the upper end of the wedge block (4) is provided with a damping pad.
3. A semitrailer fifth wheel according to claim 1, characterised in that said lifting cylinder (23) is arranged between the front rocker (21) and the rear rocker (22).
4. A semitrailer fifth wheel according to claim 1, characterised in that said front rocker (21) is provided with at least one and said rear rocker (22) is provided with at least one.
5. A semitrailer fifth wheel according to claim 1, characterised in that the frame (3) is provided with a groove extending in the fore-and-aft direction, the bottom ends of the front rocker (21), the rear rocker (22) and the lifting cylinder (23) being disposed in the groove, and the wedge block (4) being also disposed in the groove.
6. A semitrailer fifth wheel according to claim 1, characterised in that said lifting cylinder (23) is a pneumatic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220845196.4U CN216886966U (en) | 2022-04-13 | 2022-04-13 | Semitrailer traction seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220845196.4U CN216886966U (en) | 2022-04-13 | 2022-04-13 | Semitrailer traction seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216886966U true CN216886966U (en) | 2022-07-05 |
Family
ID=82192712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220845196.4U Active CN216886966U (en) | 2022-04-13 | 2022-04-13 | Semitrailer traction seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216886966U (en) |
-
2022
- 2022-04-13 CN CN202220845196.4U patent/CN216886966U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A semi-trailer traction seat Granted publication date: 20220705 Pledgee: Industrial and Commercial Bank of China Limited Liangshan sub branch Pledgor: Liangshan Samsung Machinery Co.,Ltd. Registration number: Y2024980003999 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |