CN202946512U - Bolt component with anti-release structure and integral type cover cap adopting same - Google Patents
Bolt component with anti-release structure and integral type cover cap adopting same Download PDFInfo
- Publication number
- CN202946512U CN202946512U CN 201220662158 CN201220662158U CN202946512U CN 202946512 U CN202946512 U CN 202946512U CN 201220662158 CN201220662158 CN 201220662158 CN 201220662158 U CN201220662158 U CN 201220662158U CN 202946512 U CN202946512 U CN 202946512U
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- China
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- diameter
- axle sleeve
- bolt
- bolt assembly
- hole
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- Expired - Lifetime
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Abstract
The utility model discloses a bolt component with an anti-release structure and an integral type cover cap adopting the same. The technical scheme is that the bolt component comprises a bolt and a shaft sleeve, wherein the bolt consists of a head part and a screw rod part; the head part is in a hexagon head structure and is provided with a flange surface; the diameter of the flange surface is larger than that of an inner hole of the shaft sleeve; the upper part of the screw rod part is a feed rod; a step is formed at the lower end of the feed rod; the diameter of the step is slightly larger than that of the feed rod; the lower part of the screw rod part is a threaded part; the shaft sleeve is I-shaped, and is provided with turned-over edges at the upper end and the lower end; the inner hole diameter of the shaft sleeve is larger than the outside diameter of the step; and the middle of the shaft sleeve is a necking part. The bolt component has the benefits that owing to the structure, an anti-release purpose can be realized without adding additional members; and the structure is simple, the implementation is easy and the reliability is high.
Description
Technical field
The utility model is a kind of bolt assembly with disconnecting prevention structure and the rocker arm bonnet that uses this bolt assembly.
Background technique
The sealing of engine valve actuating mechanism correlated parts and lubricated, as rocking arm, air valve bridge, valve, spring seat etc., the operation can be lastingly good to motor plays an important role, so upper position of engine needs a rocker arm bonnet to be sealed with the machine oil of certain pressure.For multi-cylinder engine, if adopt the mode of a cover cap of every cylinder, increased undoubtedly sealing surface, and then increased the possibility of leakage of oil.Therefore adopt the integrated type cover cap, need can greatly reduce the sealing surface of sealing.
But integral cover is had relatively high expectations to precision and the planeness of surface of contact, if adopt the cover cap of metallic material, can satisfy the precision of surface of contact by processing, but engine bonnet does not need very high mechanical strength, metallic material has increased cost and the weight of motor undoubtedly; Noise and the vibration of engine valve actuating mechanism generation simultaneously are larger, if adopt cover cap to contact with the direct of body, except can not effectively cutting off the noise of distribution device, the noise that cover cap self produces and vibration are also very large, greatly reduce the travelling comfort of motor and complete machine, can't satisfy regulatory to the requirement of noise; To adopting the integrated type cover assembly of plastic materials, generally formed by parts such as housing, sealing gasket, bolts, because of its rigidity and less stable, need by supplier's packing and be placed into to carry out leak test on special detector before being assembled to motor, if after leak test, all parts are the states that disperses, and need packing again after to assembly line, increase the possibility of leakage of oil, also increased installation time.
Summary of the invention
The utility model is for the deficiencies in the prior art, a kind of bolt assembly with disconnecting prevention structure is provided and uses the integrated type cover cap of this bolt assembly, and the utility model is easy, reliable, with the bolt assembly of disconnecting prevention structure, can be used for the integrated type cover cap.
The utility model is realized by following technical measures: a kind of bolt assembly with disconnecting prevention structure, comprise bolt, axle sleeve, described bolt comprises head and screw portion, described head is hexagon head structure, and with flanged surface, the diameter of described flanged surface is greater than the diameter of bore of axle sleeve, the top of described screw portion is polished rod, there is a step lower end of described polished rod, and the diameter of described step is a bit larger tham the diameter of described polished rod, and the bottom of described screw portion is the screw thread position; Described axle sleeve is I-shaped, and there is respectively flange top and bottom, and described inner hole of shaft sleeve diameter is greater than the external diameter of described step, and the middle and upper part of described axle sleeve is choke.
a kind of integrated type cover cap that uses with the bolt assembly of disconnecting prevention structure, comprise non-metal shell, seal washer and bolt assembly, after the reducing position reducing of the axle sleeve of described bolt assembly, make in the mounting hole that is arranged on after the diameter of internal diameter less than described step at reducing position on described housing, described mounting hole is up-small and down-big step hole, the upper end flange diameter of described axle sleeve is greater than the internal diameter of mounting hole, between described axle sleeve and housing, seal ring is installed in described step hole, the diameter of described axle sleeve lower end flange is greater than the internal diameter in the upper hole of described seal washer.
The beneficial effects of the utility model are: the housing of nonmetallic material is done the as a whole leak test of carrying out, and be assembled on motor, can greatly improve its sealing reliability, and reduce unnecessary disassembly and assembly time, can be widely used in the rocker arm bonnet of various motors; Realize anticreep by above structure, not needing increases extra part, simple in structure, easily realizes, reliability is high.
Description of drawings
Fig. 1 is the structural representation after the bolt assembly reducing in the utility model embodiment.
Fig. 2 is the structural representation of the integrated type cover cap in the utility model embodiment.
In figure: 1, housing, 2, seal washer, 3, bolt assembly, 4, bolt, 4.1, head, 4.2, flanged surface, 4.3, step, 4.4, the screw thread position, 5, axle sleeve, 5.1, the upper end flange, 5.2, the lower end flange, 5.3, endoporus, 5.4, the reducing position.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, this programme is set forth.
As accompanying drawing, a kind of bolt assembly with disconnecting prevention structure, comprise bolt 4, axle sleeve 5, described bolt 4 comprises head 4.1 and screw portion, and described head 4.1 is hexagon head structure, and with flanged surface 4.2, the diameter of described flanged surface 4.2 is greater than the diameter of bore of axle sleeve 5, and the top of described screw portion is polished rod, and there is a step 4.3 lower end of described polished rod, the diameter of described step 4.3 is a bit larger tham the diameter of described polished rod, and the bottom of described screw portion is screw thread position 4.4; Described axle sleeve 5 is I-shaped, and there is respectively flange top and bottom, and described inner hole of shaft sleeve diameter is greater than the external diameter of described step, and the middle part of described axle sleeve 5 is reducing position 5.4.Concrete characteristics of the present utility model also have, and the external diameter of above-mentioned step 4.3 is identical with the external diameter at screw thread position 4.4.
a kind of integrated type cover cap that uses with the bolt assembly of disconnecting prevention structure, comprise non-metal shell 1, seal washer 2 and bolt assembly 3, after reducing position 5.4 reducings of the axle sleeve 5 of described bolt assembly 3, make in the mounting hole that is arranged on after the diameter of internal diameter less than described step 4.3 at reducing position 5.4 on described housing 1, described mounting hole is up-small and down-big step hole, described 5 upper end flange 5.1 diameters are greater than the internal diameter of mounting hole, between described axle sleeve 5 and housing 1, seal washer 2 is installed in described step hole, the diameter of described axle sleeve lower end flange 5.2 is greater than the internal diameter in the upper hole of described seal washer 2, can prevent effectively that seal washer from deviating from downwards.
The utility model can pass through or adopt existing techniques in realizing without the technical characteristics of describing; do not repeat them here; certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (2)
1. bolt assembly with disconnecting prevention structure, it is characterized in that, comprise bolt, axle sleeve, described bolt comprises head and screw portion, and described head is hexagon head structure, and with flanged surface, the diameter of described flanged surface is greater than the diameter of bore of axle sleeve, and the top of described screw portion is polished rod, and there is a step lower end of described polished rod, the diameter of described step is a bit larger tham the diameter of described polished rod, and the bottom of described screw portion is the screw thread position; Described axle sleeve is I-shaped, and there is respectively flange top and bottom, and described inner hole of shaft sleeve diameter is greater than the external diameter of described step, and the middle and upper part of described axle sleeve is choke.
2. integrated type cover cap that adopts bolt assembly claimed in claim 1, it is characterized in that, comprise non-metal shell, seal washer and bolt assembly, after the reducing position reducing of the axle sleeve of described bolt assembly, make in the mounting hole that is arranged on after the diameter of internal diameter less than described step at reducing position on described housing, described mounting hole is up-small and down-big step hole, the upper end flange diameter of described axle sleeve is greater than the internal diameter of mounting hole, between described axle sleeve and housing, seal washer is installed in described step hole, the diameter of described axle sleeve lower end flange is greater than the internal diameter in the upper hole of described seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662158 CN202946512U (en) | 2012-12-05 | 2012-12-05 | Bolt component with anti-release structure and integral type cover cap adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662158 CN202946512U (en) | 2012-12-05 | 2012-12-05 | Bolt component with anti-release structure and integral type cover cap adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946512U true CN202946512U (en) | 2013-05-22 |
Family
ID=48422217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220662158 Expired - Lifetime CN202946512U (en) | 2012-12-05 | 2012-12-05 | Bolt component with anti-release structure and integral type cover cap adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946512U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277376A (en) * | 2013-06-17 | 2013-09-04 | 南车株洲电力机车研究所有限公司 | Composite busbar and connector thereof |
| CN103851059A (en) * | 2012-12-05 | 2014-06-11 | 中国重汽集团济南动力有限公司 | Bolt component with anti-falling structure and integrated cover using bolt component |
-
2012
- 2012-12-05 CN CN 201220662158 patent/CN202946512U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851059A (en) * | 2012-12-05 | 2014-06-11 | 中国重汽集团济南动力有限公司 | Bolt component with anti-falling structure and integrated cover using bolt component |
| CN103277376A (en) * | 2013-06-17 | 2013-09-04 | 南车株洲电力机车研究所有限公司 | Composite busbar and connector thereof |
| CN103277376B (en) * | 2013-06-17 | 2016-01-20 | 南车株洲电力机车研究所有限公司 | A kind of composite bus bar and link thereof |
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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: 20130522 |
|
| CX01 | Expiry of patent term |