CN113479022A - Vehicle towing structure - Google Patents
Vehicle towing structure Download PDFInfo
- Publication number
- CN113479022A CN113479022A CN202110966629.1A CN202110966629A CN113479022A CN 113479022 A CN113479022 A CN 113479022A CN 202110966629 A CN202110966629 A CN 202110966629A CN 113479022 A CN113479022 A CN 113479022A
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- pull rod
- shaped pull
- fastener
- end cover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 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
- B60D1/243—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for protection in case of crash, collision, impact, or the like
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a vehicle towing structure, which comprises an end cover arranged at the end part of a vehicle longitudinal beam, wherein a through hole is formed in the center of the end cover, an inner sleeve is connected in the through hole in a threaded manner, the left end of the inner sleeve is screwed into the inner side of the end cover, the right end of the inner sleeve is limited outside the end cover, a movable rod is inserted in the inner sleeve in a penetrating manner, a guide groove is axially arranged on the surface of the movable rod in a penetrating manner, and a guide strip matched with the guide groove is arranged on the inner wall of the inner sleeve; in practical application, when the traction steel cable is straightened, the traction steel cable can cause the compression of the spring, the traction force is buffered, and the breakage of the trailer ball head caused by applying excessive traction force at one time is avoided.
Description
Technical Field
The present invention relates to a vehicle hitch structure.
Background
Trailer bulbs are typically mounted on the chassis of conventional vehicles, and when these vehicles fail or become trapped, a trailer arm or winch mounted on the rear of the special trailer can give the trailer bulb a jam, thereby taking the vehicle out of the field.
Conventional trailer bulbs generally include a screw portion for attachment to the vehicle chassis, a spherical head portion for capturing the trailer arm, and a dome portion located between the screw portion and the spherical head portion, the screw portion, dome portion and spherical head portion being integral.
When pulling force is applied to a towed vehicle, the pulling rope for towing is stretched straight at a stroke, and large towing torque is applied to the ball head of the trailer at a stroke, so that the ball head of the trailer is broken, or the longitudinal beam of the vehicle is damaged.
Therefore, the towing structure of the vehicle, which can relieve the towing force and avoid damage caused by towing the towing force, is designed.
Disclosure of Invention
The invention aims to provide a vehicle towing structure which can alleviate traction and avoid damage caused by towing traction.
In order to solve the problems, the invention adopts the following technical scheme:
a vehicle towing structure comprises an end cover arranged at the end part of a vehicle longitudinal beam, wherein a through hole is formed in the center of the end cover, an inner sleeve is connected to the through hole in an internal thread mode, the left end of the inner sleeve is screwed into the inner side of the end cover, the right end of the inner sleeve is limited outside the end cover, a movable rod is inserted into the inner sleeve in a penetrating mode, a guide groove axially penetrates through the surface of the movable rod, and a guide strip matched with the guide groove is arranged on the inner wall of the inner sleeve; the left end of the movable rod penetrates through the inner sleeve and then is inserted into the longitudinal beam, and a limiting nut is assembled at the left end, the outer diameter of the limiting nut is smaller than that of the inner sleeve, so that after the inner sleeve is disassembled towards the right side, the limiting nut can be taken out along the through hole; a spring is assembled on the movable rod and acts between the limiting nut and the inner sleeve; the right-hand member of movable rod is provided with the end, the top of end is vertical to run through and is provided with first through-hole the first through-hole fit in has the montant, the upper end of montant is provided with the trailer bulb, the lower extreme of montant passes downwards the cooperation has first stop nut behind the first through-hole.
Preferably, the upper end surface and the lower end surface of the longitudinal beam are both provided with fasteners, the front side and the rear side of each fastener are both provided with lug plates, a bolt is assembled between the upper fastener and the lower fastener through the lug plates, and the two fasteners are tightened by the bolt so that the two fasteners and the longitudinal beam are clamped and fixed; a U-shaped pull rod is matched between the upper fastener and the lower fastener, and the U-shaped pull rod is provided with a ring part penetrating through the bolt; an arc-shaped groove corresponding to the end head is formed in the inner right side face of the U-shaped pull rod; the structure has the effects that when the traction force is too large, and the compression amplitude of the spring is too large, the end can be limited through the U-shaped pull rod, the compression trend of the spring is delayed, and the elastic failure caused by the too large compression amplitude of the spring is avoided; meanwhile, the fastener for fixing the U-shaped pull rod is installed in a bolt tightening mode, so that when the traction force is too large, the fastener can overcome the friction force to move in a small range, the rigidity stress of the longitudinal beam can be reduced through the movement, and the longitudinal beam is prevented from being damaged; the maximum extent to which the fastener can move to the right is when the spring is compressed to its limit, or the fastener contacts the end cap.
Preferably, an inner bushing made of rubber is arranged in the ring body, the bolt penetrates through the inner bushing, and the inner bushing and the bolt are in interference fit; when the end contacts the U-shaped pull rod, the U-shaped pull rod can be impacted, the impact force can be absorbed through the inner bushing, the deformation of the bolt caused by the impact force is reduced, the rigid collision force transmitted to the longitudinal beam is also reduced, and the technical effect of protecting the longitudinal beam is achieved.
Preferably, rubber strips are arranged on the inner front side and the inner rear side of the U-shaped pull rod, part of the U-shaped pull rod is clamped into the rubber strips, and glue is applied between the rubber strips and the U-shaped pull rod for reinforcement; one end of the rubber strip, which is far away from the inner wall of the U-shaped pull rod, is in pressing contact with the longitudinal beam; the rubber strip can increase the fixed stability of fastener, and when the fastener slided along the longeron to the right side, increase the frictional force that slides.
Preferably, the end of the rubber strip contacting the longitudinal beam is provided with an anti-skid groove; the anti-slip groove is arranged to further increase the slip friction force.
Preferably, an upper guide sliding plate and a lower guide sliding plate are arranged on the outer wall of the end head, and the U-shaped pull rod is limited between the upper guide sliding plate and the lower guide sliding plate; so that the U-shaped pull rod can only slide transversely.
Preferably, a rubber cushion plate is arranged at the contact position of the fastener and the longitudinal beam; the rubber base plate is arranged, so that the mounting stability of the fastener is improved, the friction force is increased, and the impact resistance of the U-shaped pull rod is indirectly improved.
Preferably, the end cover is provided with a cannula part inserted into the longitudinal beam, and a glue filling groove is formed in the outer wall of the cannula part; the inner wall of the pipe inserting part is attached to the inner wall of the longitudinal beam; above-mentioned technical characteristic has two technological effects, and the first is the joint strength who increases end cover and longeron, and the second is when the installation end cover, lets through gluing fixed mode in advance and keeps being connected between end cover and the longeron, makes things convenient for the welding construction in later stage.
The invention has the beneficial effects that:
1) in practical application, when the traction steel cable is straightened, the traction steel cable can cause the compression of a spring and buffer the traction force, so that the bulb of the trailer is prevented from being broken due to the application of excessive traction force at one time;
2) the trailer ball head in the device is detachable, so that the trailer ball head can be conveniently replaced after being damaged;
3) the spring is a quick-wear part, and the elastic capacity of the spring is reduced after the spring is frequently dragged, so that a detachable inner sleeve is designed, the spring and a limiting nut can be integrally taken out after the inner sleeve is spirally detached, then the limiting nut is screwed down, the spring is replaced, the spring is installed again after the replacement is finished, and the replacement operation is simple;
4) in the device, the limiting nut can not only limit the tail end of the spring, but also adjust the compression formation of the spring;
5) the structure of this device is comparatively simple, and the cost is comparatively cheap, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of the installation of the U-shaped tie rod;
FIG. 4 is a top view of the U-shaped drawbar;
fig. 5 is a side view of the fastener.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5.
Example 1
A vehicle towing structure comprises an end cover 1 arranged at the end position of a vehicle longitudinal beam, wherein a through hole 101 is formed in the center position of the end cover 1, an inner sleeve 2 is connected to the through hole 101 in a threaded manner, the left end of the inner sleeve 2 is screwed into the inner side of the end cover 1, the right end of the inner sleeve 2 is limited outside the end cover 1, a movable rod 3 is inserted into the inner sleeve 2, a guide groove 301 is axially arranged on the surface of the movable rod 3 in a penetrating manner, and a guide strip 222 matched with the guide groove 301 is arranged on the inner wall of the inner sleeve 2; the left end of the movable rod 3 passes through the inner sleeve 2 and then is inserted into the longitudinal beam, and a limit nut 302 is assembled at the end, the outer diameter of the limit nut 302 is smaller than that of the inner sleeve 2, so that after the inner sleeve 2 is disassembled towards the right side, the limit nut 302 can be taken out along the through hole 101; a spring 303 is assembled on the movable rod 3, and the spring 303 acts between the limiting nut 302 and the inner sleeve 2; the right-hand member of movable rod 3 is provided with end 4, the top of end 4 is vertical to run through and is provided with first through-hole 401 the first through-hole 401 fit in has montant 5, the upper end of montant 5 is provided with trailer bulb 501, the lower extreme of montant 5 passes downwards the cooperation has first stop nut 502 behind the first through-hole 401.
Example 2
The upper end face and the lower end face of each longitudinal beam are provided with fasteners 6, the front side and the rear side of each fastener 6 are provided with lug plates 601, a bolt 602 is assembled between the upper fastener 6 and the lower fastener 6 through the lug plates 601, and the bolt 602 tightens the two fasteners 6 so that the two fasteners 6 and the longitudinal beams are clamped and fixed; a U-shaped pull rod 7 is matched between the upper fastener 6 and the lower fastener 6, and the U-shaped pull rod 7 is provided with a ring part 701 passing through the bolt 602; an arc-shaped groove 702 corresponding to the end head 4 is formed in the inner right side surface of the U-shaped pull rod 7; the structure has the effects that when the traction force is too large, so that the compression amplitude of the spring 303 is too large, the end head 4 can be limited through the U-shaped pull rod 7, the compression trend of the spring 303 is delayed, and the elastic failure caused by the too large compression amplitude of the spring 303 is avoided; meanwhile, the fastener 6 for fixing the U-shaped pull rod 7 is installed in a manner of tightening the bolt 602, so that when the traction force is too large, the fastener 6 can move in a small range against the friction force, and the rigidity stress of the longitudinal beam can be reduced through the movement, so that the longitudinal beam is prevented from being damaged; the maximum amount of fastener movement to the right is that the spring 303 is compressed to the limit, or that the fastener contacts the end cap.
Example 3
An inner bushing 711 made of rubber is arranged in the ring body 701, the bolt 602 penetrates through the inner bushing 711, and the inner bushing 711 and the bolt 602 are in interference fit; when the end 4 contacts the U-shaped pull rod, the U-shaped pull rod is impacted, and the impact force can be absorbed through the inner bushing 711, so that the deformation of the bolt 602 caused by the impact force is reduced, and meanwhile, the rigid impact force transmitted to the longitudinal beam is also reduced, thereby achieving the technical effect of protecting the longitudinal beam.
Example 4
Example 5
The end of the rubber strip 712 contacting the longitudinal beam is provided with an anti-skid groove 713; the anti-slip groove 713 is provided to further increase the slip friction force.
Example 6
An upper guide sliding plate 444 and a lower guide sliding plate 444 are arranged on the outer wall of the end head 4, and the U-shaped pull rod 7 is limited between the upper guide sliding plate 444 and the lower guide sliding plate 444; so that the U-shaped tie 7 can only slide laterally.
Example 7
A rubber pad 666 is arranged at the contact position of the fastener 6 and the longitudinal beam; the rubber base plate 666 is arranged to increase the installation stability of the fastener 6, increase the friction force and indirectly improve the shock resistance of the U-shaped pull rod.
Example 8
The end cover 1 is provided with a cannula part 121 inserted into the longitudinal beam, and the outer wall of the cannula part 121 is provided with a glue filling groove 131; the inner wall of the insertion pipe part 121 is attached to the inner wall of the longitudinal beam; above-mentioned technical characteristic has two technological effects, and the first is the joint strength who increases end cover 1 and longeron, and the second is when installation end cover 1, lets through the fixed mode of gluing in advance keep being connected between end cover 1 and the longeron, makes things convenient for the welding construction in later stage.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A structure for pulling a vehicle, characterized in that: the end cover structure comprises an end cover (1) arranged at the end part of a longitudinal beam, a through hole (101) is formed in the center position of the end cover (1), an inner sleeve (2) is connected to the through hole (101) in an internal thread mode, the left end of the inner sleeve (2) is screwed into the inner side of the end cover (1), the right end of the inner sleeve is limited outside the end cover (1), a movable rod (3) is inserted into the inner sleeve (2), a guide groove (301) is axially arranged on the surface of the movable rod (3) in a penetrating mode, and a guide strip (222) matched with the guide groove (301) is arranged on the inner wall of the inner sleeve (2); the left end of the movable rod (3) penetrates through the inner sleeve (2) and then is inserted into the longitudinal beam, a limiting nut (302) is assembled at the left end, the outer diameter of the limiting nut (302) is smaller than that of the inner sleeve (2), and therefore after the inner sleeve (2) is disassembled towards the right side, the limiting nut (302) can be taken out along the through hole (101); a spring (303) is assembled on the movable rod (3), and the spring (303) acts between the limiting nut (302) and the inner sleeve (2); the right-hand member of movable rod (3) is provided with end (4), the vertical top of end (4) is run through and is provided with first through-hole (401) fit in has montant (5), the upper end of montant (5) is provided with trailer bulb (501), the lower extreme of montant (5) passes downwards the cooperation has first stop nut (502) behind first through-hole (401).
2. The structure of claim 1, characterized in that: fasteners (6) are arranged on the upper end face and the lower end face of each longitudinal beam, ear plates (601) are arranged on the front side and the rear side of each fastener (6), a bolt (602) is assembled between the upper fastener and the lower fastener (6) through the ear plates (601), and the bolt (602) tightens the two fasteners (6) so that the two fasteners (6) and the longitudinal beams are clamped and fixed; a U-shaped pull rod (7) is matched between the upper fastener (6) and the lower fastener (6), and the U-shaped pull rod (7) is provided with a ring part (701) penetrating through the bolt (602); an arc-shaped groove (702) corresponding to the end head (4) is arranged on the inner right side surface of the U-shaped pull rod (7).
3. The structure of claim 2, characterized in that: an inner bushing (711) made of rubber is arranged in the ring body (701), the bolt (602) penetrates through the inner bushing (711), and the inner bushing (711) and the bolt (602) are in interference fit.
4. The structure of claim 2, characterized in that: rubber strips (712) are arranged on the inner front side and the inner rear side of the U-shaped pull rod (7), part of the U-shaped pull rod (7) is clamped into the rubber strips (712), and glue is applied between the rubber strips (712) and the U-shaped pull rod (7) for reinforcement; the end of the rubber strip (712) far away from the inner wall of the U-shaped pull rod (7) is in pressing contact with the longitudinal beam.
5. The structure of claim 2, characterized in that: an upper guide sliding plate (444) and a lower guide sliding plate (444) are arranged on the outer wall of the end head (4), and the U-shaped pull rod (7) is limited between the upper guide sliding plate (444) and the lower guide sliding plate (444); so that the U-shaped pull rod (7) can only slide transversely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110966629.1A CN113479022A (en) | 2021-08-23 | 2021-08-23 | Vehicle towing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110966629.1A CN113479022A (en) | 2021-08-23 | 2021-08-23 | Vehicle towing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113479022A true CN113479022A (en) | 2021-10-08 |
Family
ID=77946101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110966629.1A Pending CN113479022A (en) | 2021-08-23 | 2021-08-23 | Vehicle towing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113479022A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564166A (en) * | 2016-01-05 | 2016-05-11 | 北京汽车股份有限公司 | Tow hook structure and automobile |
| US20160159174A1 (en) * | 2014-12-05 | 2016-06-09 | Ford Global Technologies, Llc | Towing device |
| CN206086240U (en) * | 2016-09-29 | 2017-04-12 | 中国人民解放军装甲兵技术学院 | Be used for trailing flexible pull rod of vehicle |
| CN112373426A (en) * | 2020-12-15 | 2021-02-19 | 金卫国 | Vehicle bottom hanging type collision protection device |
-
2021
- 2021-08-23 CN CN202110966629.1A patent/CN113479022A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160159174A1 (en) * | 2014-12-05 | 2016-06-09 | Ford Global Technologies, Llc | Towing device |
| CN105564166A (en) * | 2016-01-05 | 2016-05-11 | 北京汽车股份有限公司 | Tow hook structure and automobile |
| CN206086240U (en) * | 2016-09-29 | 2017-04-12 | 中国人民解放军装甲兵技术学院 | Be used for trailing flexible pull rod of vehicle |
| CN112373426A (en) * | 2020-12-15 | 2021-02-19 | 金卫国 | Vehicle bottom hanging type collision protection device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211008 |
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| WD01 | Invention patent application deemed withdrawn after publication |