CN203476987U - Automobile lock screw - Google Patents
Automobile lock screw Download PDFInfo
- Publication number
- CN203476987U CN203476987U CN201320187672.9U CN201320187672U CN203476987U CN 203476987 U CN203476987 U CN 203476987U CN 201320187672 U CN201320187672 U CN 201320187672U CN 203476987 U CN203476987 U CN 203476987U
- Authority
- CN
- China
- Prior art keywords
- hole
- locking nut
- expansion piece
- automobile locking
- automobile
- 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 - Fee Related
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Abstract
The utility model belongs to the technical field of automobile fasteners and relates to an automobile lock screw which includes a head part and a thread part connected with the head part. A threaded hole is arranged to be penetrating through the head part. A taper hole is arranged in the thread part. The top end of the taper hole is connected with the lower end of the threaded hole. An expansion piece is inserted in the head part and the bottom end of the expansion piece is a cone-shaped body which matches the taper hole. The upper end of the expansion piece is provided with threads which match the threaded hole. A pin-bolt hole is arranged to be penetrating through the head part in a transverse manner. A through hole which matches the pin-bolt hole is arranged to be penetrating through the expansion piece. A positioning pin passes through the pin-bolt hole and the through hole. When the expansion piece is lifted in place, the positioning pin passes through the pin-bolt hole and the through hole so that the position of the automobile lock screw is limited, the automobile lock screw is prevented from getting loose and water leakage of a water pump is prevented; and the connection device is locked so that connection positions are reliably fixed.
Description
Technical field
The utility model belongs to fastening parts of automobiles technical field, relates in particular to automobile locking nut.
Background technique
Existing discovery leakage from water pump, causes motor car engine to be leaked, and causes automobile normally not move, and gives multifarious car owners the worries of having taken, and mostly is on inspection automobile locking loosened screw institute extremely.
Therefore it is fixing reliable to be now badly in need of a automobile locking nut and link position that can be locking.
Model utility content
The purpose of this utility model be to provide a kind of can be anti-loosening and the fixing reliable automobile locking nut of link position.
The utility model is to realize like this, a kind of automobile locking nut, comprise a head and the screw section being connected with described head, described head has provided a tapped hole, described screw section is provided with a cone shape hole, the top of described cone shape hole is connected in the lower end of institute's tapped hole, described head is inserted with an expansion piece, the bottom of described expansion piece is a taper matching with described cone shape hole, the upper end of described expansion piece is provided with the screw thread matching with described tapped hole, described head has laterally provided a pin hole, described expansion piece laterally provide one with described pin hole match through hole, positioning dowel wears described pin hole and passes hole.
Further, described pin hole and through the cone shape hole of Kong Weitong tapering, described positioning dowel and described cone shape hole match.
Further, the top of described expansion piece is provided with a handle of being convenient to be affectedly bashful, and described handle has provided a through hole.
Further, the top of described expansion piece is provided with a locking hole for rotational lock.
Further, the thread of described automobile locking nut is closely-pitched.
Further, the tilt angle of described cone shape hole is 60 °.
Further, the surface of described automobile locking nut has the hardened layer forming after Carburization Treatment.
Further, the plated surface of described thread is provided with an antioxidation coating.
Further, described antioxidation coating is made by zinc, nickel or tin material.
Compared with prior art, automobile locking nut in the utility model, by at its head cross setting pin hole, and on described expansion piece, arrange associated through hole, so, on described expansion piece, mention behind position, the outside screw expansion of described automobile locking nut is resisted against on water pump, described pin hole aligns with through hole, and positioning dowel wears described pin hole and through hole.Thereby define the position of described automobile locking nut, thereby prevent automobile locking loosened screw, and then avoid leakage from water pump; And by this link position locking, link position is fixing reliable.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's generalized section.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
As shown in Figure 1, be the utility model embodiment's generalized section.
A kind of automobile locking nut that the present embodiment provides, the utility model is to realize like this, a kind of automobile locking nut, comprise a head 2 and the screw section 1 being connected with described head 2, described head 2 has provided a tapped hole 21, described screw section 1 is provided with a cone shape hole, the top of described cone shape hole is connected in the lower end of institute's tapped hole 21, described head 2 is inserted with an expansion piece 3, the bottom of described expansion piece 3 is a taper matching with described cone shape hole, the upper end of described expansion piece 3 is provided with the screw thread matching with described tapped hole 21, described head 2 has laterally provided a pin hole 4, described expansion piece 3 laterally provide one with described pin hole 4 match through hole 32, positioning dowel (not shown) wears described pin hole 4 and passes hole 32.
Compared with prior art, automobile locking nut in the utility model, by at its head 2 cross setting pin holes 4, and on described expansion piece 3, arrange associated through hole 32, so, on described expansion piece 3, mention behind position, the outside screw expansion of described automobile locking nut is resisted against on water pump, described pin hole 4 aligns with through hole 32, and positioning dowel wears described pin hole 4 and through hole 32.Thereby define the position of described automobile locking nut, thereby prevent automobile locking loosened screw, and then avoid leakage from water pump; And by this link position locking, link position is fixing reliable.
Further, described pin hole 4 and the cone shape hole that is same tapering through hole 32, described positioning dowel and described cone shape hole match.Like this, increased cone shape hole inwall in the area of contact of positioning dowel, increased frictional force, described positioning dowel is anchored in described cone shape hole.
Further, the top of described expansion piece 3 is provided with a handle of being convenient to be affectedly bashful 31, like this, can conveniently to described expansion piece 3, rotate, and does not need special instrument to realize, easy to operate practicality.Described handle 31 has provided a through hole.So, can alleviate the weight of this automobile locking nut, also can pass through this hole of excellent oblique cutting always, rotate this expansion piece 3, time saving and energy saving.
Certainly, also a locking hole for rotational lock can be set on the top of described expansion piece 3.By instrument, rotate this expansion piece 3, time saving and energy saving.As locking hole is set to inner hexagonal hole, adopt inner hexagon spanner.
Further, the thread of described automobile locking nut is closely-pitched.Like this, guarantee the sealing effect of this pump of water.
Further, the tilt angle of described cone shape hole is 60 °.So arrange, can prevent that it from rotating from structure, make to connect more reliable and more stable.
Further, the surface of described automobile locking nut has the hardened layer forming after Carburization Treatment.So, strengthen the join strength of automobile locking nut, made its not easy-rupturing, further guaranteed the reliability of the connection of auto parts and components.
Further, the plated surface of described thread is provided with an antioxidation coating.Can avoid liquid or the corrosion of impurity to automobile locking nut in water pump.
Further, described antioxidation coating is made by zinc, nickel or tin material.Be easy to realize, be convenient to batch production, and cost performance be high, cost-saving, more there is the market competitiveness.
Concrete operating process is as follows: the automobile locking nut in the utility model, after being installed in water pump, by handle 31 or locking hole, rotate described expansion piece 3, the screw thread of expansion piece 3 upper ends rotates relative to the tapped hole 21 of described head 2, whole expansion piece 3 is moved up, the taper of expansion piece 3 bottoms is supported described cone shape hole, thereby the screw thread in 1 outside, described screw section is expanded outwardly and supports water pump; On described expansion piece 3, mention behind position, described pin hole 4 aligns with the described hole 32 of passing, then positioning dowel is arranged in to pin hole 4 and through in hole 32, so, automobile is locked to screw locking location, thereby prevent from becoming flexible, and link position is reliably fixing.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. an automobile locking nut, comprise a head and the screw section being connected with described head, described head has provided a tapped hole, described screw section is provided with a cone shape hole, the top of described cone shape hole is connected in the lower end of institute's tapped hole, described head is inserted with an expansion piece, the bottom of described expansion piece is a taper matching with described cone shape hole, the upper end of described expansion piece is provided with the screw thread matching with described tapped hole, it is characterized in that, described head has laterally provided a pin hole, described expansion piece laterally provide one with described pin hole match through hole, positioning dowel wears described pin hole and passes hole.
2. automobile locking nut according to claim 1, is characterized in that: described pin hole and through the cone shape hole of Kong Weitong tapering, described positioning dowel and described cone shape hole match.
3. automobile locking nut according to claim 1, is characterized in that: the top of described expansion piece is provided with a handle of being convenient to be affectedly bashful, and described handle has provided a through hole.
4. automobile locking nut according to claim 1, is characterized in that: the top of described expansion piece is provided with a locking hole for rotational lock.
5. automobile locking nut according to claim 1, is characterized in that: the thread of described automobile locking nut is closely-pitched.
6. automobile locking nut according to claim 1, is characterized in that: the tilt angle of described cone shape hole is 60 °.
7. according to the automobile locking nut described in claim 2-6 any one, it is characterized in that: the surface of described automobile locking nut has the hardened layer forming after Carburization Treatment.
8. automobile locking nut according to claim 7, is characterized in that: the plated surface of described thread is provided with an antioxidation coating.
9. automobile locking nut according to claim 8, is characterized in that: described antioxidation coating is made by zinc, nickel or tin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320187672.9U CN203476987U (en) | 2013-04-15 | 2013-04-15 | Automobile lock screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320187672.9U CN203476987U (en) | 2013-04-15 | 2013-04-15 | Automobile lock screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476987U true CN203476987U (en) | 2014-03-12 |
Family
ID=50225323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320187672.9U Expired - Fee Related CN203476987U (en) | 2013-04-15 | 2013-04-15 | Automobile lock screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538828A (en) * | 2018-12-03 | 2019-03-29 | 江西洪都航空工业集团有限责任公司 | A kind of buckle-type non-directional fixed structure with insurance function |
-
2013
- 2013-04-15 CN CN201320187672.9U patent/CN203476987U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538828A (en) * | 2018-12-03 | 2019-03-29 | 江西洪都航空工业集团有限责任公司 | A kind of buckle-type non-directional fixed structure with insurance function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |