CN203962634U - A kind of passenger car spare tyre fixing bolt - Google Patents
A kind of passenger car spare tyre fixing bolt Download PDFInfo
- Publication number
- CN203962634U CN203962634U CN201420375639.3U CN201420375639U CN203962634U CN 203962634 U CN203962634 U CN 203962634U CN 201420375639 U CN201420375639 U CN 201420375639U CN 203962634 U CN203962634 U CN 203962634U
- Authority
- CN
- China
- Prior art keywords
- pad
- spare tyre
- bolt
- bolt handle
- passenger car
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Tires In General (AREA)
Abstract
The utility model discloses a kind of passenger car spare tyre fixing bolt, comprise bolt handle, pad, the profile of pad is agreed with the shape at spare tyre center; Described pad is cone structure, and the bottom of pad is provided with horizontal surface of contact, and the horizontal surface of contact of the bottom of described bolt handle and pad compresses laminating, and other parts of bolt handle are separated with pad.The top center position of described bolt handle is also provided with a hexagon nut structure.The utility model is simple in structure, easy for installation, and efficiency is high, and screwing force is large, can be widely used in automobile spare tire fixed installation field.
Description
Technical field
The utility model relates to the fastening field of spare tyre, especially relates to a kind of passenger car spare tyre fixing bolt.
Background technique
Current passenger car spare tyre fixing bolt, does not coordinate electric tool design, during assembly fee; Bolt pretightening is less, and automobile is when being subject to large lateral force or impact force, and spare tyre fixing bolt is sliding tooth or spare tyre meeting play easily; Lack locating function, it is excessive that spare tyre can placing range in spare tyre pond, is unfavorable for that spare tyre fixing bolt is to the compression of spare tyre wheel, fixing.As Chinese Patent Application No. 201220266653.0 discloses a kind of hand-wring type spare tire fixing device, for spare tyre is fixed on to wheel support, the handle of spare tire press plate and clamping bolt is integrated, be made into a part with clamping bolt, when dismounting spare tyre, part is difficult for losing; Spare tire press plate is that plastics are made, and has reduced sheet metal process and the cover coat protection technique of metal spare tire press plate in prior art.But the impacting force of this structure and spare tyre is inadequate, location inconvenience is installed.
Model utility content
The purpose of this utility model is to provide a kind of passenger car spare tyre fixing bolt, solves existing spare tyre fixing insecure, the problem of fastening inconvenience.
The utility model solves the technological scheme that its technical problem adopts: a kind of passenger car spare tyre fixing bolt, comprise bolt handle, and pad, the profile of pad is agreed with the shape at spare tyre center; Described pad is cone structure, and the bottom of pad is provided with horizontal surface of contact, and the horizontal surface of contact of the bottom of described bolt handle and pad compresses laminating, and other parts of bolt handle are separated with pad.
For convenience of electric tool, tighten, the top center position of described bolt handle is also provided with a hexagon nut structure.
For convenience of manual rotation, fix, described bolt handle is provided with a circle groove.
For improving screwing force, the diameter of the surface of contact of described bolt handle and pad is 13～16mm.
The beneficial effects of the utility model: contact with pad small size by bolt handle bottom, in the time of impacting force while transmitting bolt tightening, end-face friction resistance when spare tyre fixing bolt is tightened drops to minimum, thereby makes the overwhelming majority of screw-down torque for the tensile buckling of screw thread rather than for overcoming end-face friction.The cone structure design of pad, also to spare tyre wheel, limit the position in spare tyre pond simultaneously.The center superposition of the center of pad and spare tyre wheel, as larger in the spare tyre fixed support of spare tyre wheel center and design/nut skew, between pad and the screw rod by pad, there is angle, cannot tighten spare tyre fixing bolt.Generally locate thus spare tyre position in spare tyre pond.Described hexagon nut structure, conveniently tightens with pneumatic tool, raises the efficiency and screwing force.Described groove structure is convenient manually to be tightened.
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is erection drawing of the present utility model.
Embodiment
Embodiment, as shown in Figures 1 to 3, a kind of passenger car spare tyre fixing bolt, comprises bolt handle 1, pad 2, the profile of pad 2 is agreed with the shape at spare tyre center; Described pad 2 is cone structure, and the bottom of pad 2 is provided with horizontal surface of contact 21, and the horizontal surface of contact 21 of the bottom of described bolt handle 1 and pad compresses laminating, and other parts of bolt handle 1 are separated with pad 2.Described bolt handle 1 is 13～16mm with the diameter of the surface of contact of pad 2.Bolt 5 is fixed on bolt handle 1 by injection moulding.
The top center position of described bolt handle 1 is also provided with a hexagon nut structure 3.For convenience of manually-operable, described bolt handle 1 is provided with a circle groove 4.
During installation, a part for lower half portion of bolt handle 1 and pad 2 stretches in spare tyre wheel center hole, the plane compress gasket 2 of bolt handle 1 bottom, and pad 2 upper inclined surface compress spare tyre wheel.
As excessive with anticipation position difference in spare tyre position, cannot fastening spare tire fixing bolt, needing suitably to adjust behind spare tyre position can fastening spare tire fixing bolt, and to spare tyre, positioning action is played in the position in spare tyre pond thus, while tightening, hexagon nut structure 3 Quick fastenings on available electric tool fitted bolt handle 1, handle 1 also can manually tight a bolt, along with tightening of spare tyre fixing bolt, first the outside circular arc of pad 2 and ramp structure contact with the center hole of spare tyre wheel, surface friction drag radius between pad 2 and spare tyre wheel is larger, because only descending Transverse plane, bolt handle 1 contacts with pad 2, surface friction drag radius while tightening is very little, under the impacting force effect producing at same screw thread, frictional resistance moment between pad 2 and spare tyre wheel is much larger than the frictional resistance moment of bolt handle, at its lower end plane and pad, therefore in rundown process, pad 2 and spare tyre wheel are fixed together all the time, the end-face friction resisting moment that need to overcome during bolt tightening is only the surface friction drag between handle, at its lower end plane and pad 2, the screw-down torque of the overwhelming majority all stretches for the screw thread of bolt 5, produced thus great impacting force, 3～4 times of common end face compressing structure spare tyre fixing bolt impacting force.
Claims (4)
1. a passenger car spare tyre fixing bolt, comprises bolt handle (1), pad (2), and the profile of pad (2) is agreed with the shape at spare tyre center; It is characterized in that: described pad (2) is cone structure, the bottom of pad (2) is provided with horizontal surface of contact (21), the horizontal surface of contact (21) of the bottom of described bolt handle (1) and pad compresses laminating, and other parts of bolt handle (1) are separated with pad (2).
2. passenger car spare tyre fixing bolt as claimed in claim 1, is characterized in that: the top center position of described bolt handle (1) is also provided with a hexagon nut structure (3).
3. passenger car spare tyre fixing bolt as claimed in claim 1, is characterized in that: described bolt handle (1) is provided with a circle groove (4).
4. the passenger car spare tyre fixing bolt as described in claims 1 to 3 Arbitrary Term, is characterized in that: described bolt handle (1) is 13～16mm with the diameter of the surface of contact of pad (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375639.3U CN203962634U (en) | 2014-07-08 | 2014-07-08 | A kind of passenger car spare tyre fixing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375639.3U CN203962634U (en) | 2014-07-08 | 2014-07-08 | A kind of passenger car spare tyre fixing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962634U true CN203962634U (en) | 2014-11-26 |
Family
ID=51923224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420375639.3U Expired - Lifetime CN203962634U (en) | 2014-07-08 | 2014-07-08 | A kind of passenger car spare tyre fixing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564534A (en) * | 2016-10-25 | 2017-04-19 | 奇瑞汽车股份有限公司 | Spare tire mounting structure and automobile |
-
2014
- 2014-07-08 CN CN201420375639.3U patent/CN203962634U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564534A (en) * | 2016-10-25 | 2017-04-19 | 奇瑞汽车股份有限公司 | Spare tire mounting structure and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |
|
| CX01 | Expiry of patent term |