CN221113389U - Two-way screw-type trailer device that stability is good - Google Patents
Two-way screw-type trailer device that stability is good Download PDFInfo
- Publication number
- CN221113389U CN221113389U CN202323327095.1U CN202323327095U CN221113389U CN 221113389 U CN221113389 U CN 221113389U CN 202323327095 U CN202323327095 U CN 202323327095U CN 221113389 U CN221113389 U CN 221113389U
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- traction
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- stepped hole
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- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 1
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The utility model relates to the technical field of trailers, in particular to a bidirectional screwing type trailer device with good stability. The device comprises a traction arm, a traction rod, a nut and an elastic pad, wherein the traction arm is formed by welding an L-shaped traction plate structure at one end of a square pipe which is horizontally arranged, a vertical fixing hole is formed in the middle of the square pipe and is used for being fixed at the tail of a trailer, a stepped hole is formed in the horizontal section of the L-shaped traction plate, the diameter phi c of the upper side of the stepped hole is larger than the diameter Mb of the lower side of the stepped hole, and the lower side of the stepped hole is a counter-rotating thread; the upper end of the traction rod is a ball head, the lower end of the ball head is a round shaft, a boss, an optical axis and a screw rod are sequentially arranged on the round shaft from top to bottom, the optical axis of the traction rod is assembled in an upper side hole of a stepped hole of the L-shaped traction plate, the screw rod on the traction rod is a stepped screw rod, the upper end of the traction rod is assembled with the lower side thread of the L-shaped traction plate through a reverse rotation thread, and the lower end of the traction rod is assembled with a nut through a positive rotation thread. An inner square tube is arranged in the traction arm square tube and fixedly connected with the traction arm square tube through a rivet, and one end of the inner square tube is welded on the L-shaped traction plate.
Description
Technical Field
The utility model relates to the technical field of trailers, in particular to a bidirectional screwing type trailer device with good stability.
Background
The existing trailer arm is basically provided with a traction rod fixed by a screw nut, vibration and stress during traction easily lead a traction head to loosen, and traction force can damage a thread structure of the traction head after loosening, so that the traction head is scrapped. The novel structure is designed, the loosening problem can be well solved, and the service life of the trailer arm is prolonged.
Disclosure of utility model
The utility model mainly aims to provide a bidirectional screwing type trailer device with good stability so as to effectively solve the problems in the background technology.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the bidirectional screw-type trailer device with good stability comprises a traction arm, a traction rod, a nut and a spring pad, wherein the traction arm is formed by welding an L-shaped traction plate structure at one end of a horizontally arranged square tube, a vertical fixing hole is formed in the middle of the square tube and used for being fixed at the tail of a trailer, a stepped hole is formed in the middle of the horizontal section of the L-shaped traction plate, the diameter phi c of the upper side of the stepped hole is larger than the diameter Mb of the lower side of the stepped hole, and counter-rotating threads with the diameter Mb are formed in the inner wall of the lower side of the stepped hole; the upper end of the traction rod is a ball head, the lower end of the ball head is a round shaft, a boss, an optical axis and a screw rod are sequentially arranged on the round shaft from top to bottom, the diameter of the boss is larger than the diameter of the optical axis phi c, the diameter of the optical axis phi c is larger than the diameter of the screw rod Mb, the optical axis of the traction rod is assembled in the upper side hole of the L-shaped traction plate stepped hole of the traction arm, the screw rod of the traction rod is rotatably assembled in the threaded hole of the L-shaped traction plate stepped hole of the traction arm, and the boss of the traction rod is tightly pressed on the L-shaped traction plate of the traction arm to be fixed by using a spring pad and a nut.
Preferably, the screw rod on the traction rod is a stepped screw rod, the upper end of the screw rod is assembled with the lower side threads of the L-shaped traction plate of the traction arm, the screw rod is a counter-rotation thread Mb, the lower end of the screw rod is assembled with the nut in a screwing mode, and the part of the lower end of the screw rod is a positive-rotation thread Ma which is smaller than Mb.
Preferably, the traction arm square tube is also internally provided with an inner square tube, and the inner square tube is fixedly connected with the traction arm square tube by rivets, and one end of the inner square tube is welded on the L-shaped traction plate.
The utility model has the beneficial effects that: the positive and negative screw below the traction rod is in a screwing state when the traction rod is loosened, the positive screw below the traction rod is in a screwing state, the structure can prevent the traction rod from loosening, and the inner square pipe and the traction arm square pipe are in a riveting structure, so that the strength of the traction arm is improved, and the stability of the whole structure is good.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present utility model.
Fig. 2 is a schematic drawing of the structure of the traction rod of the utility model.
Fig. 3 is a cross-sectional view of the trailing arm structure of the present utility model.
In fig. 1-3, a traction arm 1, a fixing hole 2, an L-shaped traction plate 3, a traction rod 4, a spring pad 5, a nut 6, a rivet 7 and an inner square tube 8.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
Example 1
1-3, A bidirectional screwing type trailer device with good stability comprises a traction arm 1, a traction rod 4, a nut 6 and a spring pad 5, wherein the traction arm 1 is formed by welding an L-shaped traction plate 3 at one end of a square tube which is horizontally arranged, a vertical fixing hole 2 is arranged in the middle of the square tube and is used for being fixed at the tail part of the trailer, a stepped hole is formed in the middle of the horizontal section of the L-shaped traction plate 3, the diameter phi c of the upper side of the stepped hole is larger than the diameter Mb of the lower side of the stepped hole, and counter-rotating threads with the diameter Mb are arranged on the inner wall of the lower side of the stepped hole; the upper end of the traction rod 4 is a ball head, the lower end of the ball head is a round shaft, a boss, an optical axis and a screw rod are sequentially arranged on the round shaft from top to bottom, the diameter of the boss is larger than the diameter of the optical axis phi c, the diameter of the optical axis phi c is larger than the diameter of the screw rod Mb, the optical axis of the traction rod 4 is assembled in the upper side hole of the L-shaped traction plate stepped hole of the traction arm, the screw rod of the traction rod 4 is rotatably assembled in the threaded hole of the L-shaped traction plate 3 stepped hole of the traction arm 1, and the boss of the traction rod 4 is pressed on the L-shaped traction plate 3 of the traction arm to be fixed by the elastic pad 5 and the nut 6.
Preferably, the screw rod on the traction rod 4 is a stepped screw rod, the upper end of the stepped screw rod is assembled with the lower side screw thread of the traction arm L-shaped traction plate, the stepped screw rod is a counter-rotation screw thread Mb, the lower end of the stepped screw rod is assembled with the nut in a screwing mode, and the part of the lower end of the stepped screw rod is a positive-rotation screw thread Ma, and the Ma is smaller than Mb.
Preferably, an inner square tube 8 is further arranged in the square tube of the traction arm 1 and fixedly connected with the square tube of the traction arm 1 through rivets 7, and one end of the inner square tube 8 is welded on the L-shaped traction plate 3.
The utility model has the beneficial effects that: the positive and negative screw below the traction rod is in a screwing state when the traction rod is loosened, the positive screw below the traction rod is in a screwing state, the structure can prevent the traction rod from loosening, and the inner square pipe and the traction arm square pipe are in a riveting structure, so that the strength of the traction arm is improved, and the stability of the whole structure is good.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (3)
1. The utility model provides a two-way screw trailer device that stability is good which characterized in that: the device comprises a traction arm, a traction rod, a nut and an elastic pad, wherein the traction arm is formed by welding an L-shaped traction plate structure at one end of a square pipe which is horizontally arranged, a vertical fixing hole is formed in the middle of the square pipe and used for being fixed at the tail of a trailer, a stepped hole is formed in the middle of the horizontal section of the L-shaped traction plate, the diameter phi c of the upper side of the stepped hole is larger than the diameter Mb of the lower side of the stepped hole, and counter-rotating threads with the diameter Mb are formed in the inner wall of the lower side of the stepped hole; the upper end of the traction rod is a ball head, the lower end of the ball head is a round shaft, a boss, an optical axis and a screw rod are sequentially arranged on the round shaft from top to bottom, the diameter of the boss is larger than the diameter of the optical axis phi c, the diameter of the optical axis phi c is larger than the diameter of the screw rod Mb, the optical axis of the traction rod is assembled in the upper side hole of the L-shaped traction plate stepped hole of the traction arm, the screw rod of the traction rod is rotatably assembled in the threaded hole of the L-shaped traction plate stepped hole of the traction arm, and the boss of the traction rod is tightly pressed on the L-shaped traction plate of the traction arm to be fixed by using a spring pad and a nut.
2. A bi-directional screw-on trailer assembly of claim 1 wherein:
the screw rod on the traction rod is a stepped screw rod, the upper end of the traction rod is assembled with threads on the lower side of the L-shaped traction plate of the traction arm, the traction rod is a reverse-rotation thread Mb, and the lower end of the traction rod is assembled with a nut in a screwing mode, wherein the parts of the lower end of the traction rod and the nut are positive-rotation threads Ma, and Ma is smaller than Mb.
3. A bi-directional screw-on trailer assembly of claim 1 wherein:
The traction arm square tube is internally provided with an inner square tube, and is fixedly connected with the traction arm square tube through a rivet, and one end of the inner square tube is welded on the L-shaped traction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323327095.1U CN221113389U (en) | 2023-12-07 | 2023-12-07 | Two-way screw-type trailer device that stability is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323327095.1U CN221113389U (en) | 2023-12-07 | 2023-12-07 | Two-way screw-type trailer device that stability is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221113389U true CN221113389U (en) | 2024-06-11 |
Family
ID=91367249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323327095.1U Active CN221113389U (en) | 2023-12-07 | 2023-12-07 | Two-way screw-type trailer device that stability is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221113389U (en) |
-
2023
- 2023-12-07 CN CN202323327095.1U patent/CN221113389U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |