CN209667019U - A kind of automobile tow hook connection structure and automobile - Google Patents
A kind of automobile tow hook connection structure and automobile Download PDFInfo
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- CN209667019U CN209667019U CN201920020549.5U CN201920020549U CN209667019U CN 209667019 U CN209667019 U CN 209667019U CN 201920020549 U CN201920020549 U CN 201920020549U CN 209667019 U CN209667019 U CN 209667019U
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- collision prevention
- prevention girders
- car puller
- sleeve
- puller hook
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Abstract
The utility model discloses a kind of automobile tow hook connection structure and automobiles, automobile tow hook connection structure includes collision prevention girders and car puller hook sleeve, the both ends of car puller hook sleeve are respectively rear end and for the front end with trailer hook connects, collision prevention girders are equipped with installation through-hole, car puller hook sleeve is installed through in installation through-hole, at least one end that car puller hook sleeve stretches out installation through-hole is connected with reinforcement connecting plate, and each connecting plate of reinforcing is connect with collision prevention girders.Automobile includes walking chassis, and walking chassis is equipped with the automobile tow hook connection structure.The utility model has many advantages, such as that collision prevention girders are unlikely to deform and are broken, can bear that tractive force is big, structure is simple, at low cost, structural soundness is good, easily fabricated assembly.
Description
Technical field
The utility model relates to technical field of transportation means, and in particular to a kind of automobile tow hook connection structure and automobile.
Background technique
Automobile is as the important vehicles in people's daily life and work, when breaking down can not move on,
Generally vehicle can be sent into repair shop in such a way that other vehicles pull, especially broken down in remote districts, Wu Fali
With breakdown trailer, so optimal processing mode is to pull.Car puller hook needed for pulling is connected with the sleeve in collision prevention girders, existing to drag
Hitch sleeve is equal radiuses cylindrical structure, such car puller hook sleeve and collision prevention girders inside and outside contour face using protection weldering connection, In
In use, the stress distribution of entire sleeve part is uneven, local stress is excessively high.Once failure fracture occurs, automobile will be unable to drag
It drags, and later period maintenance needs replacing entire collision prevention girders, cost is big.In addition, with the demand of automotive light weight technology, aluminium alloy collision prevention girders
It becomes increasingly popular, the car puller hook form of sleeve of traditional aluminum collision prevention girders, is compared with steel collision prevention girders, intensity is weaker, it is difficult to which satisfaction is dragged
The applying working condition of hitch, the case where being easy to happen plastic deformation or fail.So design a kind of light weight, intensity is high and just
In the car puller hook sleeve connection structure of replacement be the main path for solving the problems, such as this.
There are following related patents through the literature search of existing technologies:
A kind of car puller hook (patent No.: 2012102600345, title: car puller hook) suitable for M1 vehicle, this method passes through
Make the fixing end of car puller hook from the position transfer of external screw thread escape to transition region, to reduce the bending at external screw thread escape
Stress and shear stress avoid and generate plastic deformation or fracture at external screw thread escape, have solved car puller hook deformation and have asked with fracture
Topic.
A kind of car puller hook (patent No.: 2017215797190, title: car puller hook), this method by specified first body of rod and
Diameter ratio between second body of rod, making the shank portion of car puller hook is no longer the isodiametric body of rod, keeps the lesser part of stress straight
Diameter is smaller, and such set-up mode reduces the overall weight of car puller hook, meets the purpose of lightweight development.
A kind of car puller hook (patent No.: 2014200690479, title: car puller hook), this method passes through hook portion opposed base wall
The other end extends to form limiting section towards the direction far from base portion, and the radius of curvature of limiting section is less than the curvature half of hook portion arbitrary portion
Diameter, inside form the groove for being embedded hook, increase the contact surface with hook, discontinuity are avoided, to guarantee its knot
Structure stability and intensity.
From the foregoing, it will be observed that the traction device structure of current automobile probes into and is concentrated mainly on car puller hook main body and car puller hook and set
The mating structure optimization design of cylinder is paid close attention to the bonding strength of car puller hook sleeve and white body few.China is formal within 2016
Regulation GB32087-2015 is implemented, i.e. " light-duty vehicle traction device ", to wanting in terms of the existing intensity of automobile traction equipment
It asks, also there is the requirement of complete automobile collision aspect of performance.Therefore, the car puller hook sleeve connection structure in collision prevention girders and energy-absorption box is set
Meter is particularly important.
Utility model content
The technical problems to be solved in the utility model is to overcome the shortcomings of the prior art, provides a kind of collision prevention girders and is not easy
Deformation and fracture can bear that tractive force is big, structure is simple, truck trailer at low cost, good, the easily fabricated assembly of structural soundness
Hook connects structure correspondingly provides a kind of automobile with the automobile tow hook connection structure.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of automobile tow hook connection structure, including collision prevention girders and car puller hook sleeve, the both ends point of the car puller hook sleeve
Not Wei rear end and for the front end with trailer hook connects, the collision prevention girders are equipped with installation through-hole, and the car puller hook sleeve runs through
It is mounted in the installation through-hole, at least one end that the car puller hook sleeve stretches out installation through-hole is connected with reinforcement connecting plate, respectively
Reinforce connecting plate to connect with collision prevention girders.
As a further improvement of the above technical scheme:
Be equipped with through-hole among the reinforcement connecting plate, the car puller hook sleeve be threaded through in the through-hole for reinforcing connecting plate and with
Reinforce connecting plate welding, the reinforcement connecting plate is connect by multiple first fasteners with collision prevention girders, multiple first fastenings
Part is arranged around car puller hook sleeve uniform intervals.
The middle part of the car puller hook sleeve is equipped with blocking part, has inside the collision prevention girders and contacts with blocking part and prevent to drag
The barrier structure that hitch sleeve is moved relative to collision prevention girders along the direction of car puller hook sleeve rear end to front end.
The blocking part is the shaft shoulder on car puller hook sleeve, and the shaft shoulder and the barrier structure face of the collision prevention girders connect
Touching, and the contact surface of the shaft shoulder and the barrier structure of the collision prevention girders is ring-like face.
Be detachably attached to an energy-absorption box in the collision prevention girders, the car puller hook sleeve by more than one second
Fastener is connect with the energy-absorption box.
The energy-absorption box is connect by more than one third fastener with collision prevention girders, and there are two be spaced cloth for the energy-absorption box tool
The web portion set, the collision prevention girders are plugged between two web portion, and the third fastener runs through collision prevention girders and two
Collision prevention girders are simultaneously connected fastening with two web portion by web portion；The car puller hook sleeve is located between two web portion,
At least one third fastener also extends through the car puller hook sleeve.
The energy-absorption box has more than one abutting part, the abutting part and collision prevention girders offset and prevent energy-absorption box relative to
Collision prevention girders are moved along the direction of car puller hook sleeve rear end to front end.
The stop sleeve of collision prevention girders deformation, each to connect when each third fastener outer cover is equipped with one for preventing fastening
Plate portion corresponds to each stop sleeve and is equipped with connecting hole, and each stop sleeve is mounted on two web portion with interference fit type
In connecting hole.
The energy-absorption box includes shell and bottom plate, and the shell has inner cavity open at one end, and the bottom plate is connected to shell
The open end of body；The bottom plate is equipped with the reinforcement positioning bar with locating slot, and the shell is inserted in the locating slot；It is described
One or more connection strengthening rib, the connection strengthening rib and case weld are additionally provided on bottom plate；The intracavity bottom of the shell is set
There are fastener receptacles, second fastener passes through fastener receptacles connection and fastens the shell and trailer rhampotheca
Cylinder, the bottom plate are equipped with the tooling hole for passing through for tool and dismounting second fastener.
A kind of automobile, including walking chassis, the walking chassis are equipped with above-mentioned automobile tow hook connection structure.
Compared with the prior art, the advantages of the utility model are:
In the automobile tow hook connection structure of the utility model, car puller hook sleeve is connected by reinforcing connecting plate and collision prevention girders
It connects, power suffered by car puller hook sleeve uniformly passes to the stress that collision prevention girders are improved to collision prevention girders by reinforcing connecting plate when traction
Situation can avoid that collision prevention girders local stress is excessively high and the risk that is deformed and is broken；Drawing strength can also be improved simultaneously, is made
Collision prevention girders are able to bear bigger tractive force, reduce to performance requirements such as the materials of collision prevention girders；In addition, car puller hook sleeve runs through
It is mounted in the installation through-hole of collision prevention girders, it is easy for installation, structural soundness is good.The automobile tow hook connection structure also has knot
The advantages of structure simple, at low cost, easily fabricated assembly.The automobile tow hook connection structure of the utility model is particularly suitable for aluminium conjunction
The collision prevention girders of the easily-deformable material such as gold.
Automobile tow hook connection structure of the automobile of the utility model due to using the utility model, is likewise supplied with the vapour
The advantages of vehicle car puller hook connection structure is had.
Detailed description of the invention
Fig. 1 is the schematic perspective view of automobile tow hook connection structure.
Fig. 2 is the schematic cross-sectional view at car puller hook sleeve and collision prevention girders link position.
Fig. 3 is the schematic perspective view that car puller hook sleeve is connect with energy-absorption box.
Fig. 4 is the schematic perspective view of car puller hook sleeve.
Fig. 5 is the schematic cross-sectional view of car puller hook sleeve.
Fig. 6 is the schematic perspective view of the shell of energy-absorption box.
Fig. 7 is the schematic perspective view of the bottom plate of energy-absorption box.
Fig. 8 is the stress envelope of car puller hook sleeve in orthodox car car puller hook connection structure.
Fig. 9 is the stress envelope of collision prevention girders in orthodox car car puller hook connection structure.
Figure 10 is the stress envelope of car puller hook sleeve in the utility model automobile tow hook connection structure.
Figure 11 is the stress envelope of collision prevention girders in the utility model automobile tow hook connection structure.
Marginal data:
1, collision prevention girders；11, installation through-hole；2, car puller hook sleeve；21, reinforce connecting plate；22, blocking part；23, nose threads
Hole；24, rear end threaded hole；25, through hole；3, energy-absorption box；31, web portion；311, connecting hole；32, abutting part；33, shell；
331, fastener receptacles；34, bottom plate；341, tooling hole；35, reinforce positioning bar；36, locating slot；37, connection strengthening rib；
101, the second fastener；102, third fastener；103, stop sleeve.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, the automobile tow hook connection structure of the present embodiment, including collision prevention girders 1 and car puller hook sleeve 2,
The both ends of car puller hook sleeve 2 are respectively rear end and for the front end with trailer hook connects, and collision prevention girders 1 are equipped with installation through-hole 11,
Car puller hook sleeve 2 is installed through in installation through-hole 11, and the front-end and back-end that car puller hook sleeve 2 stretches out installation through-hole 11 are all connected with
Have and reinforce connecting plate 21, each connecting plate 21 of reinforcing is connect with collision prevention girders 1.In the automobile tow hook connection structure, car puller hook sleeve 2
Connect by reinforcing connecting plate 21 with collision prevention girders 1, power suffered by car puller hook sleeve 2 is by reinforcing the uniform biography of connecting plate 21 when traction
To collision prevention girders 1, the stress condition of collision prevention girders 1 is improved, avoidable 1 local stress of collision prevention girders is excessively high and is deformed and is broken
Risk；Drawing strength can also be improved simultaneously, so that collision prevention girders 1 is able to bear bigger tractive force, reduces to collision prevention girders 1
The performance requirements such as material；In addition, car puller hook sleeve 2 is installed through in the installation through-hole 11 of collision prevention girders 1, easy for installation, knot
Structure stability is good.The automobile tow hook connection structure also has the advantages that simple, at low cost, the easily fabricated assembly of structure.
The front-end and back-end that the car puller hook sleeve 2 of the present embodiment stretches out installation through-hole 11, which are respectively connected with, reinforces connecting plate 21,
Power suffered by car puller hook sleeve 2 is passed to the front-rear side walls of collision prevention girders 1.It in other embodiments, can also be only in car puller hook sleeve 2
The front end or rear end for stretching out installation through-hole 11, which are connected with, reinforces connecting plate 21.
In the present embodiment, reinforce being equipped with through-hole among connecting plate 21, car puller hook sleeve 2, which is threaded through, reinforces the logical of connecting plate 21
It is welded in hole and with connecting plate 21 is reinforced, reinforces connecting plate 21 and connected by multiple first fastener (not shown) and collision prevention girders 1
It connects, multiple first fasteners are arranged around 2 uniform intervals of car puller hook sleeve.Car puller hook sleeve 2, which is threaded through, reinforces connecting plate 21
It being welded in through-hole and with connecting plate 21 is reinforced, car puller hook sleeve 2 and bonding strength height, the stress performance for reinforcing connecting plate 21 are good,
Reinforce connecting plate 21 simultaneously to connect by multiple first fasteners with collision prevention girders 1, and multiple first fasteners are around trailer rhampotheca
Cylinder 2 uniform intervals arrangement, reinforces connecting plate 21 and bonding strength height, the stress performance of collision prevention girders 1 are good, to guarantee collision prevention girders 1
Integrated connection intensity is high and stress performance.Preferably, car puller hook sleeve 2 and reinforcement connecting plate 21 pass through protection weldering welding, the
One fastener uses rivet.Certainly, the connection types such as screw, bolt also can be used in the first fastener in other embodiments.
Preferably, reinforce connecting plate 21 and the outer surface of collision prevention girders 1 is similar, the two fits closely.
In the present embodiment, the middle part of car puller hook sleeve 2 is equipped with blocking part 22, has inside collision prevention girders 1 and connects with blocking part 22
The barrier structure of touching, barrier structure and the cooperation of blocking part 22 prevent car puller hook sleeve 2 relative to collision prevention girders 1 along car puller hook sleeve 2
The direction of rear end to front end is mobile.The stress condition that 1 front and rear wall of collision prevention girders can be improved in this way, further increases bonding strength height
And stress performance, so that car puller hook sleeve 2 is born bigger tractive force without will lead to the deformation of collision prevention girders 1 and damage.
Preferably, blocking part 22 is the shaft shoulder on car puller hook sleeve 2, and the shaft shoulder and the barrier structure face of collision prevention girders 1 connect
Touching, and the contact surface of the shaft shoulder and the barrier structure of collision prevention girders 1 is ring-like face.Shaft shoulder formation is arranged on car puller hook sleeve 2 to keep out
Portion 22, manufacture is easy, at low cost and small to the intensity effect of car puller hook sleeve 2, stress performance is good, while the shaft shoulder and anticollision
The contact surface of beam 1 is ring-like face, makes the more uniform stabilization of power transmission between car puller hook sleeve 2 and collision prevention girders 1.Above-mentioned collision prevention girders 1
Barrier structure is by being arranged to stepped hole for installation through-hole 11.
The collision prevention girders 1 of the present embodiment be specially matrix pattern section collision prevention girders 1, the midfeather of matrix pattern section collision prevention girders 1 with
The contact of blocking part 22 stops car puller hook sleeve 2.
In the present embodiment, be detachably attached to an energy-absorption box 3 in collision prevention girders 1, car puller hook sleeve 2 by one with
Upper second fastener 101 is connect with energy-absorption box 3.Power suffered by car puller hook sleeve 2 can be transferred to collision prevention girders 1 by energy-absorption box 3
Other positions (reinforcing the position other than connecting plate 21 and 1 junction of collision prevention girders), increase the stress point of collision prevention girders 1, Neng Goujin
The stress condition of one step improvement collision prevention girders 1.
In the present embodiment, as shown in Fig. 2, Fig. 3 and Fig. 6, energy-absorption box 3 passes through more than one third fastener 102 and anticollision
Beam 1 connects, and there are two spaced apart web portion 31, collision prevention girders 1 are plugged between two web portion 31 tool of energy-absorption box 3,
Third fastener 102 is fastened through collision prevention girders 1 and two web portion 31 and by collision prevention girders 1 and two connections of web portion 31,
Its structural compactness is good, bonding strength is high；Car puller hook sleeve 2 is located between two web portion 31, the fastening of at least one third
Part 102 also extends through car puller hook sleeve 2, can further increase bonding strength and stress condition.Preferably, web portion 31 is also set
There is the groove for accommodating 102 end of third fastener, two end accommodations for making third fastener 102 in a groove, are conducive to improve
Structural compactness.
In the present embodiment, energy-absorption box 3 has more than one abutting part 32, and abutting part 32 offsets with collision prevention girders 1 and prevents to inhale
Energy box 3 is moved relative to collision prevention girders 1 along the direction of car puller hook sleeve 2 rear end to front end.Energy-absorption box 3 is passed power by abutting part 32
Collision prevention girders 1 are handed to, energy-absorption box 3 is increased to the point of application of collision prevention girders 1, the stress condition of collision prevention girders 1 can be improved.
In the present embodiment, collision prevention girders 1 are deformed when each 102 outer cover of third fastener is equipped with one for preventing fastening
Stop sleeve 103, the corresponding each stop sleeve 103 of each web portion 31 are equipped with connecting hole 311, and each stop sleeve 103 is with mistake
The fit system that is full of is mounted in the connecting hole 311 of two web portion 31, facilitates the assembly of stop sleeve 103.Above-mentioned support sleeve
The length and consistency of thickness of the collision prevention girders 1 in 102 fastening direction of third fastener of cylinder 103, when third fastener 102 fastens
It can prevent collision prevention girders 1 from deforming.
In the present embodiment, as shown in Fig. 3, Fig. 6 and Fig. 7, energy-absorption box 3 includes shell 33 and bottom plate 34, and shell 33 has one
The inner cavity of end opening, bottom plate 34 are connected to the open end of shell 33, simple and compact for structure, light weight and cost is low.On bottom plate 34
Equipped with positioning bar 35 is reinforced, reinforce positioning bar 35 and be equipped with locating slot 36, shell 33 is inserted in locating slot 36, convenient for assembly positioning
And improve shell 33 and 34 bonding strength of bottom plate and stability.Connection strengthening rib 37, connection strengthening rib are additionally provided on bottom plate 34
37 weld with shell 33, can be improved the bonding strength of bottom plate 34 Yu shell 33, it is preferred that the connection strengthening rib 37 on bottom plate 34
For the annular rib for surrounding shell 33.The intracavity bottom of shell 33 is equipped with fastener receptacles 331, and the second fastener 101 passes through tight
Firmware mounting hole 331 connects rugged housing 33 and car puller hook sleeve 2.Above-mentioned second fastener 101 uses screw.Such as Fig. 4 and Fig. 5
Shown, the front end of the car puller hook sleeve 2 of the present embodiment is equipped with the nose threads hole 23 for connecting car puller hook, and rear end is equipped with and is used for
The rear end threaded hole 24 being cooperatively connected with the second fastener 101, middle part are equipped with the through hole for passing through for third fastener 102
25.Bottom plate 34 is equipped with the tooling hole 341 that the second fastener 101 of dismounting is passed through for tool, in order to dismount the second fastener
101。
Preferably, above-mentioned shell 33 is formed using tube structure and reinforcement floor combination, is reinforced bottom plate and is welded by protection weldering
It connects and is welded with the inner wall of tube structure one end, car puller hook sleeve 2 is connect by the second fastener 101 with bottom plate is reinforced, by cylinder
A pair of of opposite side of structure one end is folded into turnup structure as abutting part 32, and another pair opposite side is as two web portion
31.The shell 33 has the advantages that easily fabricated, at low cost, structural strength is high.
Car puller hook sleeve 2 and collision prevention girders 1, car puller hook sleeve 2 and energy-absorbing in the automobile tow hook connection structure of the present embodiment
It is connected by dismountable fastener connection type between box 3, energy-absorption box 3 and collision prevention girders 1, is pulled off in car puller hook sleeve 2
After failure, it can be individually replaced car puller hook sleeve 2, cost can be substantially reduced.
A kind of automobile, including walking chassis, walking chassis are equipped with the automobile tow hook connection structure of the present embodiment.
The automobile tow hook connection structure of the present embodiment is applied in Mr. Yu's matrix pattern anti-collision beam assembly, according to national standard
GB32087-2015 " light-duty vehicle traction device " carries out dead load in 5 degree of operating condition on loading direction and stretches emulation,
In, the material of car puller hook sleeve 2 is 6063 aluminium alloys, diameter 30mm, length 88mm；The material of collision prevention girders 1 is 7003 aluminium
Alloy, wall thickness 1.8mm；Reinforcement 21 material of connecting plate is 6063 aluminium alloys, wall thickness 1.8mm；The material of energy-absorption box 3 is 6063
Aluminium alloy, wall thickness 2.8mm；Complete vehicle quality is 1500kg, minimum dead load F=mg/2=1500 × 9.8/2 that should be able to be born
=7.35KN.Comparison uses the identical matrix pattern anti-collision beam assembly of orthodox car car puller hook connection structure, when loading tractive force,
It was found that the stress of car puller hook connection sleeve concentrates on the commissure connecting with anti-collision beam in orthodox car car puller hook connection structure,
Maximum tensile stress is 0.2726GPa (referring to Fig. 8)；The stress of anti-collision beam concentrates on the mounting hole week of car puller hook connection sleeve
It encloses, maximum stress 0.4458GPa, and apparent plastic deformation has occurred (referring to Fig. 9；And the car puller hook sleeve 2 of the present embodiment
Stress distribution is in blocking part 22, through hole 25, rear end threaded hole 24 and reinforces connecting plate 21, and the maximum stress born is respectively
0.1867GPa, 0.20GPa, 0.1608GPa, 0.1287GPa (referring to Figure 10)；1 stress distribution of collision prevention girders was in installation through-hole 11 weeks
21 overlay area of connecting plate is enclosed and reinforces, the maximum stress born is respectively 0.3138GPa, 0.1578GPa, is less than
The yield strength of 7003T6 state aluminium alloy, there is no being significantly plastically deformed (referring to Figure 11), it can be seen that, the present embodiment
The stress condition of collision prevention girders 1 is greatly improved, and effectively prevents the excessively high generation plastic deformation of local stress, is obviously improved
The drawing strength of automobile.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment.To those of ordinary skill in the art, gained under the premise of not departing from the utility model technical concept
To modifications and variations also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of automobile tow hook connection structure, including collision prevention girders (1) and car puller hook sleeve (2), the car puller hook sleeve (2)
Both ends are respectively rear end and for the front end with trailer hook connects, it is characterised in that: the collision prevention girders (1) are equipped with installation through-hole
(11), the car puller hook sleeve (2) is installed through in the installation through-hole (11), and the car puller hook sleeve (2) stretches out installation
At least one end of through-hole (11), which is connected with, reinforces connecting plate (21), respectively reinforces connecting plate (21) and connect with collision prevention girders (1).
2. automobile tow hook connection structure according to claim 1, it is characterised in that: the reinforcement connecting plate (21) is intermediate
Equipped with through-hole, the car puller hook sleeve (2) is threaded through in the through-hole for reinforcing connecting plate (21) and welds with connecting plate (21) are reinforced,
The reinforcement connecting plate (21) is connect by multiple first fasteners with collision prevention girders (1), and multiple first fasteners surround and drag
Hitch sleeve (2) uniform intervals arrangement.
3. automobile tow hook connection structure according to claim 1, it is characterised in that: in the car puller hook sleeve (2)
Portion is equipped with blocking part (22), has inside the collision prevention girders (1) and contacts with blocking part (22) and prevent car puller hook sleeve (2) opposite
In collision prevention girders (1) barrier structure mobile along the direction of car puller hook sleeve (2) rear end to front end.
4. automobile tow hook connection structure according to claim 3, it is characterised in that: the blocking part (22) is set on dragging
The shaft shoulder on hitch sleeve (2), the barrier structure face contact of the shaft shoulder and the collision prevention girders (1), and the shaft shoulder and the anticollision
The contact surface of the barrier structure of beam (1) is ring-like face.
5. automobile tow hook connection structure according to any one of claim 1 to 4, it is characterised in that: the collision prevention girders
(1) it is detachably attached on an energy-absorption box (3), the car puller hook sleeve (2) passes through more than one second fastener
(101) it is connect with the energy-absorption box (3).
6. automobile tow hook connection structure according to claim 5, it is characterised in that: the energy-absorption box (3) passes through one
The above third fastener (102) connect with collision prevention girders (1), and there are two spaced apart web portion for energy-absorption box (3) tool
(31), the collision prevention girders (1) are plugged between two web portion (31), and the third fastener (102) runs through collision prevention girders (1)
It is fastened with two web portion (31) and by collision prevention girders (1) and two web portion (31) connections；Car puller hook sleeve (2) position
Between two web portion (31), at least one third fastener (102) also extends through the car puller hook sleeve (2).
7. automobile tow hook connection structure according to claim 5, it is characterised in that: the energy-absorption box (3) has one
The above abutting part (32), the abutting part (32) and collision prevention girders (1) offset and prevent energy-absorption box (3) relative to collision prevention girders (1) edge
The direction of car puller hook sleeve (2) rear end to front end is mobile.
8. automobile tow hook connection structure according to claim 5, it is characterised in that: each third fastener (102) is outside
The stop sleeve (103) that collision prevention girders (1) deform when portion is arranged with one for preventing fastening, each web portion (31) are corresponding each
Stop sleeve (103) is equipped with connecting hole (311), and each stop sleeve (103) is mounted on two connecting plates with interference fit type
In the connecting hole (311) in portion (31).
9. automobile tow hook connection structure according to claim 5, it is characterised in that: the energy-absorption box (3) includes shell
(33) and bottom plate (34), the shell (33) have inner cavity open at one end, and the bottom plate (34) is connected to opening for shell (33)
Mouth end；The bottom plate (34) is equipped with the reinforcement positioning bar (35) with locating slot (36), and it is described fixed that the shell (33) is inserted in
In position slot (36)；One or more connection strengthening rib (37), the connection strengthening rib (37) and shell are additionally provided on the bottom plate (34)
Body (33) welding；The intracavity bottom of the shell (33) is equipped with fastener receptacles (331), and second fastener (101) is worn
It crosses the fastener receptacles (331) connection fastening shell (33) and car puller hook sleeve (2), the bottom plate (34) is equipped with
The tooling hole (341) for dismounting second fastener (101) is passed through for tool.
10. a kind of automobile, including walking chassis, it is characterised in that: the walking chassis is equipped with any one of claims 1 to 9
The automobile tow hook connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020549.5U CN209667019U (en) | 2019-01-07 | 2019-01-07 | A kind of automobile tow hook connection structure and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020549.5U CN209667019U (en) | 2019-01-07 | 2019-01-07 | A kind of automobile tow hook connection structure and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN209667019U true CN209667019U (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920020549.5U Active CN209667019U (en) | 2019-01-07 | 2019-01-07 | A kind of automobile tow hook connection structure and automobile |
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| CN (1) | CN209667019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015256A (en) * | 2019-01-07 | 2019-07-16 | 长沙仲腾金属材料科技有限公司 | A kind of automobile tow hook connection structure and automobile |
-
2019
- 2019-01-07 CN CN201920020549.5U patent/CN209667019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015256A (en) * | 2019-01-07 | 2019-07-16 | 长沙仲腾金属材料科技有限公司 | A kind of automobile tow hook connection structure and automobile |
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