CN110254147A - A kind of rotatable rear dragging hitch with shock-absorbing function - Google Patents
A kind of rotatable rear dragging hitch with shock-absorbing function Download PDFInfo
- Publication number
- CN110254147A CN110254147A CN201910481379.5A CN201910481379A CN110254147A CN 110254147 A CN110254147 A CN 110254147A CN 201910481379 A CN201910481379 A CN 201910481379A CN 110254147 A CN110254147 A CN 110254147A
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- China
- Prior art keywords
- hook
- shock
- mounting shell
- axis
- axis body
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/04—Hook or hook-and-hasp couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/32—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/58—Auxiliary devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to auto parts and components technical field of structures, in particular to a kind of rotatable rear dragging hitch with shock-absorbing function.Including mounting shell and coupler body；The mounting shell is hollow and at least open at one end cavity body structure；The coupler body includes axis body part and hook portion；The axis body part is that can be rotationally connected with the shaft in mounting shell to axis around along X, and buffering shock-damping structure of the X to active force is provided between axis body part and mounting shell；The hook portion includes the stay hook for being fixed on axis body portions end and the movable hook that stay hook can be rotationally connected with around Y-direction axis.Drawing coupler structure of the invention is simple, easy to operate, can adapt to the torsion force during pulling, not will cause the damage and overturning problem of car puller hook, has good safety, is suitble to promote the use of on a large scale.
Description
Technical field
The present invention relates to auto parts and components technical field of structures, in particular to a kind of rotatable rear dragging with shock-absorbing function
Hitch.
Background technique
Cross-country class automobile usually has some demands pulled, and traditional rear dragging structure of couplers is more simple heavy, peace
Load connects inconvenience, needs specific purpose tool；Conventional trailer hook and car body mostly use greatly rigid connection, do not have shock-absorbing function, work as extension
When Che Yuzhu vehicle has speed difference or jolts, the impact that junction generates can be directly transferred on main vehicle, easily cause main vehicle car body
Integrity problem；And due to car puller hook and car body all using rigid connection, when vehicle by distortion road surface when, Trailer car shaft with
Main vehicle axle has differential seat angle, and trailer can give one biggish reaction torque of main vehicle, may cause main vehicle when this torque is excessive
The danger such as damage even overturning.
Such as the Chinese invention patent of entitled " a kind of flexible adjustment car puller hook " of Patent No. " CN105015288A ", the knot
Structure includes fixed plate, the first hollow pipe and hook, and the lower section of fixed plate, the first hollow inner concentric tube is arranged in the first hollow pipe
It is provided with the second hollow pipe, the front end of the second hollow pipe is arranged in hook, and the end of the first hollow pipe is provided with one piece of plugging plate,
The spring being connected with the end of the second hollow pipe is provided on plugging plate, the front of the first side wall of hollow pipe is provided with one
A bolt hole, the front and rear of the second hollow pipe are respectively arranged with a threaded hole.The structure has good X to buffering
Function, but just as stated earlier, torque cannot be born, is rigid connection structure, no since two hollow pipes are fixed together
Have the function of bearing torque, in use process, be easy to appear overturning either automobile damage the problem of.
Summary of the invention
The purpose of the present invention is to solve the deficiency of the above background technology, provides a kind of rotatable with shock-absorbing function
Rear dragging hitch.
The technical solution of the present invention is as follows: a kind of rotatable rear dragging hitch with shock-absorbing function, it is characterised in that: including peace
Fill shell and coupler body；The mounting shell is hollow and at least open at one end cavity body structure；The coupler body include axis body part and
Hook portion；The axis body part is that can be rotationally connected with the shaft in mounting shell, axis body part and installation to axis around along X
Buffering shock-damping structure of the X to active force is provided between shell；The hook portion includes being fixed on the fixation of axis body portions end
Hook and the movable hook that stay hook can be rotationally connected with around Y-direction axis.
The radially raised positive stop lug boss of a circle is provided on the further axis body part；In the mounting shell
Side offers the groove that a circle corresponds to positive stop lug boss；The positive stop lug boss can rotationally be fastened on groove around axis body segment axis
It is interior.
The further mounting shell is provided with cricoid bearing shell towards coupler body one end；A circle is provided on the inside of the bearing shell
The compliant rotational ring being fitted in axis body part-circular periphery end face outside.
The further shock-damping structure includes the yielding rubber between axis body part and mounting shell；The damping rubber
Rubber ring is wound on the periphery end face of axis body part, yielding rubber along X to both ends be pushed against on the inside of mounting shell respectively and axis
On body portion on a radially raised circle shaft shoulder.
The further shaft shoulder is provided with the limiting cushion block that a circle is close to yielding rubber one end towards yielding rubber side；
The compress gasket that a circle is close to the yielding rubber other end is provided on the inside of the mounting shell.
It is provided between the further stay hook and movable hook and limits the locking that movable hook avoids unhook in trailer
Structure.
The further locking structure includes,
Connecting rod, described connecting rod one end can rotationally be articulated and connected around Y-direction axis and be provided in stay hook, the other end along Y-direction
The pin shaft of arrangement；
Spring, the spring one end is fixed on stay hook, the other end along X to the body of rod for being connected to the close pin shaft of connecting rod
On；
The movable hook is provided with the card slot of arc and opening close to one end of mounting shell；The pin shaft engages in trailer
It is pushed against in card slot and by spring driving the rotation that movable hook is limited on movable hook.
Being hinged on the further pin shaft can be around the spanner that pin shaft axially rotates；Described spanner one end is connected to pin
Axis, the other end pass through stay hook and stretch out on the outside of coupler body.
The postive stop baffle along Y-direction arrangement is provided on the further stay hook；The movable hook is in card in pin shaft
Its lower end is pushed against on postive stop baffle when in slot.
The bolt hole connecting with vehicle body is provided on the further mounting shell.
Advantages of the present invention has: 1, by the way that coupler body and mounting shell are arranged around the connection structure that X is rotated to axis, energy
The torsion force generated during dragging is enough adapted to, avoids the occurrence of the excessive caused car puller hook damage problem of torque, and pacify
Assembling structure is simple, easy to operate；
2, by using the composite structure connecting shaft body portion and mounting shell of positive stop lug boss and groove, axis can effectively be limited
Between body portion and mounting shell along X to displacement, provide X to pulling force to pull, and the two power transmission stress is good, is swift in response；
3, by setting compliant rotational ring, the flexibility that the connection between axis body part and mounting shell provides radial direction is slow
Punching, the rigidity reduced between axis body part and mounting shell rub, and provide the service life of axis body part and mounting shell；
4, by the way that yielding rubber is arranged between mounting shell and axis body part, by the rigidity between mounting shell and axis body part
Connection is changed into flexible connection, avoids installation and axis body part generates rigid collision, reduce because the damage that collision generates, prolongs
Long life；
5, by setting locking structure, it can effectively avoid the problem that breaking off relations during dragging, improve trailer
When safety, and locking structure is easy to operate, easy to use；
6, the locking structure formed by connecting rod and spring assembly, can ensure that be not in unhook problem in trailer, lead to
Connecting rod of overdriving can quickly open coupler body again, easy to operate.
Drawing coupler structure of the invention is simple, easy to operate, can adapt to the torsion force during pulling, Bu Huizao
At the damage and overturning problem of car puller hook, there is good safety, be suitble to promote the use of on a large scale.
Detailed description of the invention
Fig. 1: car puller hook the schematic diagram of the section structure of the invention (when connecting rod locking)；
Fig. 2: car puller hook the schematic diagram of the section structure of the invention when locking (connecting rod non-)；
Fig. 3: car puller hook axonometric drawing of the invention；
Fig. 4: car puller hook using state structure diagram of the invention；
Wherein: 1-mounting shell；2-axis body parts；3-stay hooks；4-movable hooks；5-positive stop lug boss；6-grooves；
7-bearing shells；8-swivel beckets；9-yielding rubbers；10-the shaft shoulders；11-limiting cushion blocks；12-compress gaskets；13-connecting rods；
14-springs；15-pin shafts；16-card slots；17-spanners；18-postive stop baffles；19-bolts hole.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of rotatable rear dragging hitch with shock-absorbing function, including mounting shell 1 and coupler body, mounting shell 1 are fixed on front truck,
Coupler body is hooked on rear car, and the coupler body of the present embodiment can rotationally be articulated and connected to axis in mounting shell 1 along X.As shown in Fig. 1~2,
Mounting shell 1 is hollow and at least open at one end cavity body structure, as shown in figure 3, being provided on mounting shell 1 for same front truck vehicle body
The bolt hole 19 of connection, is fixedly connected with vehicle body by bolt hole 19.
The coupler body of the present embodiment includes axis body part 2 and hook portion, and axis body part 2 is that can rotate around along X to axis
Ground is connected to the shaft in mounting shell 1, and as shown in Fig. 1~2, the radially raised limit of a circle is provided on axis body part 2
Position boss 5, offers the groove 6 that a circle corresponds to positive stop lug boss 5 on the inside of mounting shell 1, positive stop lug boss 5 can be around 2 axis of axis body part
It is rotationally fastened in groove 6, i.e., axis body part 2 can be realized around X by the mating connection of positive stop lug boss 5 and groove 6 to axis
Line is rotationally articulated and connected in mounting shell 1, and positive stop lug boss 5 and groove 6 can limit the X between axis body part 2 and mounting shell 1
To movement, but the rotation around X to axis is not limited.
There is slight clearance between positive stop lug boss 5 and groove 6, that is, allows axis body part 2 and mounting shell 1 to generate micro along X
To relative displacement, as shown in Fig. 1~2, be provided between axis body part 2 and mounting shell 1 buffering damping knot of the X to active force
Structure, shock-damping structure include the yielding rubber 9 between axis body part 2 and mounting shell 1, and yielding rubber 9 is looped around axis body part 2
Periphery end face on, yielding rubber 9 along X to both ends be pushed against respectively the inside of mounting shell 1 on axis body part 2 radially
On the one circle shaft shoulder 10 of protrusion.The shaft shoulder 10 is provided with the limit pad that a circle is close to 9 one end of yielding rubber towards 9 side of yielding rubber
Block 11 is provided with the compress gasket 12 that a circle is close to 9 other end of yielding rubber on the inside of mounting shell 1.Yielding rubber 9 is located at limit pad
Between block 11 and subunit gold pad piece 12, for buffering the X between mounting shell 1 and axis body part 2 to shock, by axis body part 2 with
Rigid connection between mounting shell 1 is changed into flexible connection.
In addition, mounting shell 1 is provided with cricoid bearing shell 7 towards coupler body one end, a circle is provided on the inside of bearing shell 7 and is fitted in axis
Compliant rotational ring 8 on 2 periphery end face of body portion.Bearing shell 7 and axis body part 2 are buffered by swivel becket 8 flexible, it can
Good buffering effect is generated to axis body part 2, reduces the friction between axis body part 2 and bearing shell 7, that improves the two uses the longevity
Life.
The hook portion of the present embodiment includes being fixed on the stay hook 3 of 2 end of axis body part and can rotating around Y-direction axis
Ground is connected to the movable hook 4 of stay hook 3.As shown in Fig. 1~2, the limitation in trailer is provided between stay hook 3 and movable hook 4
Movable hook 4 avoids the locking structure to break off relations.Locking structure includes connecting rod 13 and spring 14, and 13 one end of connecting rod can turn around Y-direction axis
It is articulated and connected dynamicly and stay hook 3, the other end is provided with the pin shaft 15 along Y-direction arrangement, 14 one end of spring is fixed on stay hook 3
For the upper, other end along X to connecting rod 13 is connected on the body of rod of pin shaft 15, movable hook 4 is provided with arc close to one end of mounting shell 1
The card slot 16 of shape and opening, pin shaft 15 are fastened in card slot 16 in trailer and are pushed against on movable hook 4 by the driving of spring 14
Limit the rotation of movable hook 4.When needing to hook, movable hook 4 and stay hook are opened in pressing 13 driving spring 14 of connecting rod compression
3, the hook of rear car is extend between movable hook 4 and stay hook 3, connecting rod 13 is unclamped, stretches spring 14, connecting rod 13 drives
Pin shaft 15 is pushed against the rotation of limitation movable hook 4 in card slot 16, anti-locking hook.
For the ease of the rotation of drive link 13, the present embodiment is equipped with spanner on one end of pin shaft 15 in connecting rod 13
17, as shown in figures 1-4,17 one end of spanner is fixedly connected on connecting rod 13 and passes through admittedly close to one end of 15 side of pin shaft, the other end
Determine hook 3 to stretch out on the outside of coupler body.I.e. by pull spanner 17 can drive link 13 rotate, pressuring spring 14, realize to work
The locking of dynamic hook 4 or unlock.
As shown in Fig. 1~2, the postive stop baffle 18 along Y-direction arrangement is provided on stay hook 3, movable hook 4 is in pin shaft 15
Its lower end is pushed against on postive stop baffle 18 when in card slot 16.Postive stop baffle 18 limits movable hook 4 and breaks off relations to the direction of other side,
Improve the stability and safety of total.
As shown in Figure 1, front-rear direction of the X of the present embodiment to finger automobile, i.e. up and down direction in figure and axis body part
2 axial direction.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of rotatable rear dragging hitch with shock-absorbing function, it is characterised in that: including mounting shell (1) and coupler body；The peace
Filling shell (1) is hollow and at least open at one end cavity body structure；The coupler body includes axis body part (2) and hook portion；Institute
State axis body part (2) be can be around the shaft being rotationally connected with along X to axis in mounting shell (1), axis body part (2) and mounting shell
(1) buffering shock-damping structure of the X to active force is provided between；The hook portion includes being fixed on axis body part (2) end
Stay hook (3) and the movable hook (4) that stay hook (3) can be rotationally connected with around Y-direction axis.
2. a kind of rotatable rear dragging hitch with shock-absorbing function as described in claim 1, it is characterised in that: the axis body portion
Divide and is provided with the radially raised positive stop lug boss (5) of a circle on (2)；It is corresponding that a circle is offered on the inside of the mounting shell (1)
The groove (6) of positive stop lug boss (5)；The positive stop lug boss (5) can be rotationally fastened in groove (6) around axis body part (2) axis.
3. a kind of rotatable rear dragging hitch with shock-absorbing function as claimed in claim 1 or 2, it is characterised in that: the peace
It fills shell (1) and coupler body one end is provided with cricoid bearing shell (7)；A circle, which is provided with, on the inside of the bearing shell (7) is fitted in axis body portion
Divide the compliant rotational ring (8) on (2) periphery end face.
4. a kind of rotatable rear dragging hitch with shock-absorbing function as described in claim 1, it is characterised in that: the damping knot
Structure includes the yielding rubber (9) between axis body part (2) and mounting shell (1)；The yielding rubber (9) is looped around axis body portion
On the periphery end face of point (2), yielding rubber (9) along X to both ends be pushed against on the inside of mounting shell (1) respectively and axis body part
(2) on the radially raised circle shaft shoulder (10).
5. a kind of rotatable rear dragging hitch with shock-absorbing function as claimed in claim 4, it is characterised in that: the shaft shoulder
(10) yielding rubber (9) side is provided with the limiting cushion block (11) that a circle is close to yielding rubber (9) one end；The mounting shell
(1) inside is provided with the compress gasket (12) that a circle is close to yielding rubber (9) other end.
6. a kind of rotatable rear dragging hitch with shock-absorbing function as described in claim 1, it is characterised in that: the stay hook
(3) it is provided between movable hook (4) and limits the locking structure that movable hook (4) avoid unhook in trailer.
7. a kind of rotatable rear dragging hitch with shock-absorbing function as claimed in claim 6, it is characterised in that: the locking knot
Structure includes,
Connecting rod (13), described connecting rod (13) one end can be rotationally articulated and connected in stay hook (3), other end setting around Y-direction axis
There is the pin shaft (15) along Y-direction arrangement；
Spring (14), described spring (14) one end is fixed on stay hook (3), the other end is close to connecting rod (13) is connected to along X
On the body of rod of pin shaft (15)；
The movable hook (4) is provided with the card slot (16) of arc and opening close to the one end of mounting shell (1)；The pin shaft (15) exists
It is fastened on when trailer in card slot (16) and is pushed against the rotation for limiting movable hook (4) on movable hook (4) by spring (14) driving.
8. a kind of rotatable rear dragging hitch with shock-absorbing function as claimed in claim 7, it is characterised in that: further include spanner
(17)；Described spanner (17) one end is fixedly connected on connecting rod (13) and is located at one end of pin shaft (15) side, the other end across fixation
Hook (3) stretches out on the outside of coupler body.
9. a kind of rotatable rear dragging hitch with shock-absorbing function as claimed in claim 7 or 8, it is characterised in that: described solid
Determine to be provided with the postive stop baffle (18) along Y-direction arrangement on hook (3)；The movable hook (4) is in card slot (16) in pin shaft (15)
When its lower end be pushed against on postive stop baffle (18).
10. a kind of rotatable rear dragging hitch with shock-absorbing function as described in claim 1, it is characterised in that: the installation
The bolt hole (19) connecting with vehicle body is provided on shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481379.5A CN110254147A (en) | 2019-06-04 | 2019-06-04 | A kind of rotatable rear dragging hitch with shock-absorbing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481379.5A CN110254147A (en) | 2019-06-04 | 2019-06-04 | A kind of rotatable rear dragging hitch with shock-absorbing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110254147A true CN110254147A (en) | 2019-09-20 |
Family
ID=67916698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910481379.5A Pending CN110254147A (en) | 2019-06-04 | 2019-06-04 | A kind of rotatable rear dragging hitch with shock-absorbing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110254147A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889665A (en) * | 2022-05-30 | 2022-08-12 | 广州羽扬物流科技有限公司 | Rear traction connecting device for trolley |
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| CN1802270A (en) * | 2003-05-28 | 2006-07-12 | 霍兰集团公司 | Trailer hitch assembly |
| CN102431401A (en) * | 2011-10-13 | 2012-05-02 | 东风汽车有限公司 | Lubricating and sealing device for full-hanging traction hook |
| CN105711359A (en) * | 2016-01-22 | 2016-06-29 | 安徽江淮汽车股份有限公司 | Draw hook device |
| CN207433158U (en) * | 2017-08-24 | 2018-06-01 | 重庆望江工业有限公司 | A kind of trailer towing hook damper mechanism |
| CN207790229U (en) * | 2017-12-31 | 2018-08-31 | 山东德方液压机械股份有限公司 | A kind of draft gear |
| CN207955228U (en) * | 2018-02-02 | 2018-10-12 | 常州凯润科技有限公司 | It is a kind of quickly to open locking towing hook |
-
2019
- 2019-06-04 CN CN201910481379.5A patent/CN110254147A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802270A (en) * | 2003-05-28 | 2006-07-12 | 霍兰集团公司 | Trailer hitch assembly |
| CN102431401A (en) * | 2011-10-13 | 2012-05-02 | 东风汽车有限公司 | Lubricating and sealing device for full-hanging traction hook |
| CN105711359A (en) * | 2016-01-22 | 2016-06-29 | 安徽江淮汽车股份有限公司 | Draw hook device |
| CN207433158U (en) * | 2017-08-24 | 2018-06-01 | 重庆望江工业有限公司 | A kind of trailer towing hook damper mechanism |
| CN207790229U (en) * | 2017-12-31 | 2018-08-31 | 山东德方液压机械股份有限公司 | A kind of draft gear |
| CN207955228U (en) * | 2018-02-02 | 2018-10-12 | 常州凯润科技有限公司 | It is a kind of quickly to open locking towing hook |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889665A (en) * | 2022-05-30 | 2022-08-12 | 广州羽扬物流科技有限公司 | Rear traction connecting device for trolley |
| CN114889665B (en) * | 2022-05-30 | 2024-04-09 | 广州羽扬物流科技有限公司 | Traction connection device behind trolley |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190920 |
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| RJ01 | Rejection of invention patent application after publication |