CN220742626U - Tractor and trailer connection structure - Google Patents
Tractor and trailer connection structure Download PDFInfo
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- CN220742626U CN220742626U CN202322068066.1U CN202322068066U CN220742626U CN 220742626 U CN220742626 U CN 220742626U CN 202322068066 U CN202322068066 U CN 202322068066U CN 220742626 U CN220742626 U CN 220742626U
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- tractor
- trailer
- towing
- fixing frame
- pin
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- 230000009467 reduction Effects 0.000 claims abstract description 19
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The utility model discloses a tractor and trailer connecting structure which comprises a traction pin and a noise reduction sheet, wherein the traction pin is arranged between a tractor fixing frame and a trailer fixing frame, and the noise reduction sheet is arranged in a gap between a traction hole of the trailer fixing frame and the traction pin so as to prevent the inner wall of the traction hole of the trailer fixing frame from contacting with the outer wall of the traction pin. According to the utility model, the noise reduction sheet is added on the basis of the original connecting structure of the tractor fixing frame, the trailer fixing frame and the traction pin, so that impact collision can be obviously reduced when the tractor starts to accelerate forward or brake to decelerate and drive backward, collision noise is greatly reduced, comfort of tractor operators is ensured, service life of the traction pin is prolonged, and the noise reduction sheet has the advantages of simple structure, low cost and high practicability.
Description
Technical Field
The utility model belongs to the technical field of traction equipment, and particularly relates to a tractor and trailer connection structure.
Background
When the tractor at the airport drags the trailer, the tractor and the trailer are connected by a traction pin, the traction pin is designed to be a cylinder with the diameter of 32mm, the dragging hole of the trailer is designed to be 60mm in diameter, and the large hole is beneficial to the insertion and extraction of the traction pin. A trailer and tractor hitch accessory as disclosed in prior art CN 217672018U; including bolt, mop, trailer ring and supporting component, bolt and mop ring looks adaptation, supporting component includes fixed spike, movable spike, first sleeve pipe, two extension springs, two second sleeve pipes, two first extension spring hooks, two second extension spring hooks and round pin axle, two second sleeve pipe symmetries set up on movable spike, two first extension spring hooks symmetry set up on movable spike, fixed spike and mop fixed connection, first sleeve pipe and fixed spike fixed connection, two second extension spring hooks symmetry set up in the below of mop, the both ends of every extension spring are connected with corresponding first extension spring hooks and corresponding two second extension spring hooks respectively, through the setting of above-mentioned structure, the operation that can independently accomplish trailer link tractor through the tractor driver, need not to be equipped with operating personnel in addition, eliminate the hidden danger of incident because of two people's cooperation errors cause.
The great majority of the present designs are that the towing hole of trailer is great, and the towing pin is thinner, and this structure is favorable to towing pin and trailer to be more smooth and easy when the plug, nevertheless this also leads to there to be certain clearance between towing pin and the towing hole, in the tractor start acceleration and braking deceleration process, because inertial cause, towing pin and towing hole can relative movement, lead to towing pin and trailer to produce impact collision, and this phenomenon can send great noise, and this greatly influences tractor staff's travelling comfort, can reduce the life-span of towing pin moreover.
Disclosure of Invention
The utility model aims to provide a tractor and trailer connecting structure which is used for solving the problems in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a tractor and trailer connection structure, includes the towing pin and falls the piece of making an uproar, the towing pin sets up between towing vehicle mount and trailer mount, fall the piece of making an uproar and set up in the clearance between the towing hole of trailer mount and the towing pin to prevent the towing hole inner wall of trailer mount and towing pin outer wall contact.
As an optional implementation manner of the technical scheme, the noise reduction sheet comprises a plurality of arc-shaped cards, and the arc-shaped cards are annularly arranged in a gap between a dragging hole of the trailer fixing frame and the dragging pin.
As an optional implementation manner of the above technical scheme, the arc-shaped card comprises an embedded part and an exposed part, the embedded part and the exposed part are connected to form an L shape, the embedded part extends into the dragging hole, and the exposed part is exposed outside the dragging hole.
As an optional implementation manner of the above technical solution, an arc transition portion is provided between the embedded portion and the exposed portion.
As an alternative embodiment of the foregoing technical solution, the traction pin is a spring bolt.
As an optional implementation manner of the above technical scheme, the tractor fixing frame is provided with a limiting groove, and one end of the trailer fixing frame with a dragging hole stretches into the limiting groove and connects the trailer fixing frame with the trailer fixing frame through a spring bolt.
As an optional implementation manner of the technical scheme, the tractor fixing frame comprises a side fixing plate, an upper limit plate, a middle limit plate and a lower limit plate are arranged on one side of the side fixing plate, insertion holes matched with the spring bolts are formed in the upper limit plate, the middle limit plate and the lower limit plate, and a limit groove is formed in a gap between the middle limit plate and the lower limit plate.
As an optional implementation manner of the technical scheme, the spring bolt comprises a pin shaft, a spring, an upper limiting part and a lower limiting part, the pin shaft is matched with the jack, the upper limiting part and the lower limiting part are both installed on the pin shaft, the upper limiting part is located above the upper limiting plate, the lower limiting part is located between the upper limiting plate and the middle limiting plate, the spring is sleeved on the pin shaft, one end of the spring is abutted to the upper limiting plate, and the other end of the spring is abutted to the lower limiting part.
As an optional implementation manner of the above technical scheme, the upper limiting piece comprises an upper lifting handle, and the upper lifting handle is abutted with the upper limiting plate.
As an optional implementation manner of the above technical scheme, the lower limiting piece comprises a lower limiting ring, the lower limiting ring is sleeved on the pin shaft, and the bottom end of the spring is abutted with the lower limiting ring.
As an optional implementation manner of the technical scheme, the lower limiting ring is provided with a positioning chute, and the middle limiting plate is provided with a positioning block matched with the chute.
The beneficial effects of the utility model are as follows:
the utility model provides a tractor and trailer connecting structure, wherein a noise reduction sheet is arranged in a gap between a towing hole of a trailer fixing frame and a towing pin so as to prevent the inner wall of the towing hole of the trailer fixing frame from contacting with the outer wall of the towing pin. According to the utility model, the noise reduction sheet is added on the basis of the original connecting structure of the tractor fixing frame, the trailer fixing frame and the traction pin, so that impact collision can be obviously reduced when the tractor starts to accelerate forward or brake to decelerate and drive backward, collision noise is greatly reduced, comfort of tractor operators is ensured, service life of the traction pin is prolonged, and the noise reduction sheet has the advantages of simple structure, low cost and high practicability.
Drawings
FIG. 1 is a schematic view of a connection structure according to an embodiment of the present utility model;
FIG. 2 is a schematic view of an arc-shaped card according to one embodiment of the utility model;
FIG. 3 is a schematic view of a trailer mount according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a tractor mount according to one embodiment of the present utility model;
fig. 5 is a schematic view of a spring bolt according to an embodiment of the present utility model.
In the figure: 1-a noise reduction sheet; 2-a tractor fixing frame; 3-trailer fixing frames; 4-dragging holes; 5-arc card; 6-an embedding part; 7-an exposed portion; 8-arc transition part; 9-a spring latch; 10-side fixing plates; 11-an upper limit plate; 12-an intermediate limiting plate; 13-a lower limit plate; 14-pin shafts; 15-a spring; 16-upper handle; 17-a lower limit ring; 18-positioning a chute; 19-positioning blocks.
Detailed Description
Examples
As shown in fig. 1-5, this embodiment provides a tractor and trailer connection structure, including towing pin and piece 1 of making an uproar falls, the towing pin sets up between towing vehicle mount 2 and trailer mount 3, and towing vehicle mount 2 is fixed on the tractor, and trailer mount 3 is fixed on the trailer, and towing hole 4 has been seted up to one end of trailer mount 3, and the diameter of this towing hole 4 is usually designed to 60mm, and the diameter of this towing hole 4 is greater than the diameter of towing pin, is convenient for the plug of towing pin.
As shown in fig. 1, the noise reduction sheet 1 is disposed in a gap between the towing hole 4 of the trailer fixing frame 3 and the towing pin, so as to prevent the inner wall of the towing hole 4 from directly contacting with the outer wall of the towing pin. The noise reduction sheet 1 is arranged in the dragging hole 4, and the traction pin is directly contacted with the noise reduction sheet 1 in the starting acceleration and braking deceleration processes of the tractor, so that noise generated by collision between the traction pin and the trailer fixing frame 3 can be effectively avoided, and the noise reduction sheet is very friendly to airport tractor operators. In addition, the noise reduction sheet 1 has a protection function for the traction pin, and can effectively prolong the service life of the traction pin.
According to the utility model, the noise reduction sheet 1 is added on the basis of the original connecting structure of the tractor fixing frame 2, the trailer fixing frame 3 and the traction pin, so that impact collision can be obviously reduced when the tractor starts to accelerate forward or decelerate by braking and runs in reverse, collision noise is greatly reduced, comfort of tractor operators is ensured, service life of the traction pin is prolonged, and the noise reduction sheet has the advantages of simple structure, lower cost and high practicability.
As shown in fig. 3, in this embodiment, the noise reduction sheet 1 includes two arc-shaped cards 5, and the two arc-shaped cards 5 are annularly arranged in a gap between the towing hole 4 of the trailer fixing frame 3 and the towing pin. The two arc-shaped cards 5 are oppositely arranged, the two arc-shaped cards 5 are respectively positioned at two sides of the traction pin, and when the traction pin and the traction hole 4 relatively move back and forth, the traction pin is contacted with the two arc-shaped cards 5, so that collision noise is avoided. The noise reduction sheet 1 can also adopt the design scheme of a ring sheet, and adopts the design mode of two arc-shaped cards 5, so that the installation of the arc-shaped cards 5 is convenient.
As shown in fig. 2, specifically, the arc-shaped card 5 includes an embedded portion 6 and an exposed portion 7, the embedded portion 6 and the exposed portion 7 are connected to form an L shape, the embedded portion 6 and the exposed portion 7 are integrally formed, the embedded portion 6 extends into the drawing hole 4, the embedded portion 6 is attached to the drawing hole 4, and the exposed portion 7 is exposed outside the drawing hole 4. The arc-shaped card 5 is usually made of plastic, has a simple structure and is beneficial to production and manufacture. Preferably, a circular arc transition portion 8 is provided between the embedded portion 6 and the exposed portion 7. The arc transition part 8 has a guiding function, can guide the traction pin to be inserted into the inner side of the arc-shaped card 5, and does not influence the insertion and extraction of the traction pin.
In this embodiment, as shown in fig. 1, the traction pin is a spring bolt 9. The spring bolt 9 is arranged on the tractor fixing frame 2, and the spring bolt 9 can be extended and inserted into the dragging hole 4 of the trailer fixing frame 3 to realize the connection of the tractor fixing frame 2 and the trailer fixing frame 3. The tractor fixing frame 2 is provided with a limiting groove, and one end of the trailer fixing frame 3 with the dragging hole 4 stretches into the limiting groove and is connected with the trailer fixing frame 3 through a spring bolt 9.
As shown in fig. 4, specifically, the tractor fixing frame 2 includes a side fixing plate 10, one side of the side fixing plate 10 is provided with an upper limiting plate 11, a middle limiting plate 12 and a lower limiting plate 13, the upper limiting plate 11, the middle limiting plate 12 and the lower limiting plate 13 are provided with insertion holes adapted to the spring bolts 9, and a gap between the middle limiting plate 12 and the lower limiting plate 13 forms the limiting groove. The upper limiting plate 11, the middle limiting plate 12 and the lower limiting plate 13 are arranged in parallel, the upper limiting plate 11, the middle limiting plate 12 and the lower limiting plate 13 are vertically connected with the side fixing plate 10, and the insertion holes of the upper limiting plate 11, the middle limiting plate 12 and the lower limiting plate 13 correspond to each other, so that the spring bolt 9 can conveniently move.
As shown in fig. 5, in some embodiments, the spring latch 9 includes a pin 14, a spring 15, an upper limiting member and a lower limiting member, where the pin 14 is adapted to the jack, the upper limiting member and the lower limiting member are both installed on the pin 14, the upper limiting member is located above the upper limiting plate 11, the lower limiting member is located between the upper limiting plate 11 and the middle limiting plate 12, the spring 15 is sleeved on the pin 14, one end of the spring 15 is abutted with the upper limiting plate 11, and the other end of the spring 15 is abutted with the lower limiting member. The spring 15 provides a downward force for the lower limiting piece, the lower limiting piece is abutted with the middle limiting plate 12, the bottom end of the pin shaft 14 penetrates through the dragging hole 4 of the trailer fixing frame 3 and then stretches into the jack of the lower limiting plate 13, and the connection between the tractor and the trailer is realized; the pin shaft 14 is lifted upwards, the pin shaft 14 moves upwards, the pin shaft 14 is separated from the jack of the lower limiting plate 13, and the trailer fixing frame 3 is convenient to assemble and disassemble.
The upper limiting part comprises an upper lifting handle 16, and the upper lifting handle 16 is abutted with the upper limiting plate 11. The lower limiting piece comprises a lower limiting ring 17, the lower limiting ring 17 is fixedly sleeved on the pin shaft 14, and the bottom end of the spring 15 is in butt joint with the lower limiting ring 17. Preferably, the lower limiting ring 17 is provided with a positioning chute 18, and the middle limiting plate 12 is provided with a positioning block 19 adapted to the chute. The pin shaft 14 can rotate in the jack, and when the upper handle 16 is lifted, the pin shaft 14 needs to be rotated to a proper position, so that the positioning chute 18 of the lower limiting ring 17 corresponds to the positioning block 19, and at the moment, the upper handle 16 can be lifted smoothly to enable the pin shaft 14 to move up and down.
In the description of the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed; may be a mechanical or electrical connection; may be directly connected or indirectly connected through an intermediate medium, and may be in communication with the inside of two elements or in interaction with the two elements, the specific meaning of the terms being understood by those skilled in the art. Furthermore, the particular features, structures, etc. described in the examples are included in at least one embodiment and those of skill in the art may combine features of different embodiments without contradiction. The scope of the present utility model is not limited to the above-described specific embodiments, and embodiments which can be suggested to those skilled in the art without inventive effort according to the basic technical concept of the present utility model are all within the scope of the present utility model.
Claims (10)
1. The utility model provides a tractor and trailer connection structure, its characterized in that includes towing pin and falls piece (1) of making an uproar, the towing pin sets up between towing vehicle mount (2) and trailer mount (3), fall the piece (1) of making an uproar and set up in the clearance between the towing hole (4) of trailer mount (3) and towing pin to prevent towing hole (4) inner wall and towing pin outer wall contact of trailer mount (3).
2. The tractor and trailer connection structure according to claim 1, wherein the noise reduction sheet (1) comprises a plurality of arc-shaped cards (5), and the arc-shaped cards (5) are annularly arranged in a gap between a towing hole (4) of the trailer fixing frame (3) and a towing pin.
3. Tractor and trailer connection according to claim 2, characterized in that the arc-shaped card (5) comprises an embedded part (6) and an exposed part (7), the embedded part (6) and the exposed part (7) are connected in an L-shape, the embedded part (6) extends into the towing aperture (4), and the exposed part (7) is exposed outside the towing aperture (4).
4. A tractor and trailer connection according to claim 3, characterized in that a circular arc transition (8) is provided between the insert (6) and the exposed portion (7).
5. Tractor and trailer connection according to claim 1, characterized in that the towing pin is a spring bolt (9); the tractor fixing frame (2) is provided with a limiting groove, and one end of the trailer fixing frame (3) with a dragging hole (4) stretches into the limiting groove and is connected with the trailer fixing frame (3) through a spring bolt (9).
6. The tractor and trailer connection structure according to claim 5, wherein the tractor fixing frame (2) comprises a side fixing plate (10), one side of the side fixing plate (10) is provided with an upper limit plate (11), a middle limit plate (12) and a lower limit plate (13), the upper limit plate (11), the middle limit plate (12) and the lower limit plate (13) are provided with insertion holes matched with the spring bolts (9), and a gap between the middle limit plate (12) and the lower limit plate (13) forms the limit groove.
7. The tractor and trailer connection structure according to claim 6, wherein the spring latch (9) comprises a pin shaft (14), a spring (15), an upper limiting member and a lower limiting member, the pin shaft (14) is matched with the jack, the upper limiting member and the lower limiting member are both installed on the pin shaft (14), the upper limiting member is located above the upper limiting plate (11), the lower limiting member is located between the upper limiting plate (11) and the middle limiting plate (12), the spring (15) is sleeved on the pin shaft (14), one end of the spring (15) is in butt joint with the upper limiting plate (11), and the other end of the spring (15) is in butt joint with the lower limiting member.
8. The tractor and trailer connection according to claim 7, wherein the upper stop comprises an upper handle (16), the upper handle (16) being in abutment with the upper stop plate (11).
9. The tractor and trailer connection structure according to claim 8, wherein the lower limiting member comprises a lower limiting ring (17), the lower limiting ring (17) is sleeved on the pin shaft (14), and the bottom end of the spring (15) is abutted with the lower limiting ring (17).
10. The tractor and trailer connection structure according to claim 9, wherein the lower limit ring (17) is provided with a positioning chute (18), and the middle limit plate (12) is provided with a positioning block (19) adapted to the chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322068066.1U CN220742626U (en) | 2023-08-02 | 2023-08-02 | Tractor and trailer connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322068066.1U CN220742626U (en) | 2023-08-02 | 2023-08-02 | Tractor and trailer connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220742626U true CN220742626U (en) | 2024-04-09 |
Family
ID=90571191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322068066.1U Active CN220742626U (en) | 2023-08-02 | 2023-08-02 | Tractor and trailer connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220742626U (en) |
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2023
- 2023-08-02 CN CN202322068066.1U patent/CN220742626U/en active Active
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