CN207261438U - A kind of check bolt - Google Patents
A kind of check bolt Download PDFInfo
- Publication number
- CN207261438U CN207261438U CN201721078488.5U CN201721078488U CN207261438U CN 207261438 U CN207261438 U CN 207261438U CN 201721078488 U CN201721078488 U CN 201721078488U CN 207261438 U CN207261438 U CN 207261438U
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- bolt
- gasket
- hole
- exhausting
- screw rod
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Abstract
It the utility model is related to a kind of check bolt.Mainly solve the problems, such as that loosening easily occurs in bolt.Including screw rod and bolt head, further include gasket, gasket is equipped with screw hole, internal thread is equipped with screw hole, annular array at least two counterbores on the lower face of the gasket outer ring, elastic component is equipped with counterbore, gag lever post is connected with elastic component, step is equipped with the screw rod close to described bolt head one end, step is equipped with the external screw thread to match with above-mentioned internal thread, screw rod it is tilted be equipped with exhausting-gas hole, equidistant on the downside of exhausting-gas hole to be equipped with least two point holes communicated with above-mentioned exhausting-gas hole, bolt head is equipped with the venthole communicated with above-mentioned exhausting-gas hole.Special gasket is set on the check bolt, the situation for occurring loosening is can effectively prevent, and exhausting-gas hole is set inside bolt, for discharging the gas produced in bolt-clearance, so as to be conducive to the acquisition of vacuum between screw hole and thread pitch, screw retention ability and fastening performance are further improved.
Description
Technical field
It the utility model is related to a kind of bolt, and in particular to a kind of check bolt.
Background technology
Bolt:Machine components, the cylindrical threaded fastener of adapted nut.External screw thread (is carried by head and screw rod
Cylinder) a kind of fastener dimerous, need to coordinate with nut, for being fastenedly connected two parts with through hole.
This type of attachment claims to be bolted.It as nut is screwed off from bolt, and can separate the two parts, therefore be bolted
It is to belong to be detachably connected.
Bolt is big in vibrations, when utilization in the high equipment of frequency, the problem of loosening usually occurs, in order to solve this
One problem, it is general by the way of gasket is increased in the prior art, but its effect and unobvious, not for bolt looseness
True cause solve.
Utility model content
In order to overcome the shortcomings of background technology, the utility model provides a kind of check bolt, it is easy mainly to solve bolt
The problem of loosening, sets special gasket on the check bolt, can effectively prevent the situation for occurring loosening, and in bolt
Inside sets exhausting-gas hole, for discharging the gas produced in bolt-clearance, so as to be conducive to vacuum between screw hole and thread pitch
Acquisition, further improve screw retention ability and fastening performance, have it is simple in structure, it is of low cost the advantages of.
Technical solution is used by the utility model：A kind of check bolt, including screw rod and bolt head, further include pad
Piece, the gasket are equipped with screw hole, are equipped with internal thread in the screw hole, the circular array on the lower face of the gasket outer ring
At least two counterbores are arranged, elastic component is equipped with the counterbore, gag lever post is connected with the elastic component, close to described
The screw rod of bolt head one end is equipped with step, and the step is equipped with the external screw thread to match with above-mentioned internal thread, described
Screw rod it is tilted be equipped with exhausting-gas hole, it is equidistant on the downside of the exhausting-gas hole to be equipped with least two and communicated with above-mentioned exhausting-gas hole
Divide hole, the bolt head is equipped with the venthole communicated with above-mentioned exhausting-gas hole.
Further, the gasket upper surface is equipped with one layer of rubber pad.
Further, the gasket is equal with step thicknesses.
Further, the counterbore is four, and gasket lower face is arranged in a manner of annular array.
Further, it is described to divide hole to be 4, in vertical direction with 45 ° of settings.
Further, the venthole is equipped with dustproof cover.
Further, the screw rod and bolt head are integrally formed.
The beneficial effects of the utility model are：Due to taking above-mentioned technical proposal, special pad is set on the check bolt
Piece, can effectively prevent the situation for occurring loosening, and exhausting-gas hole is set inside bolt, for discharging what is produced in bolt-clearance
Gas, so as to be conducive to the acquisition of vacuum between screw hole and thread pitch, further improves screw retention ability and fastening performance,
With the advantages of simple in structure, of low cost.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the structure diagram of gasket.
Fig. 3 is the schematic diagram after gasket assembling.
1, screw rod in figure；2nd, bolt head；3rd, gasket；4th, screw hole；5th, counterbore；6th, elastic component；7th, gag lever post；8th, step；9、
Exhausting-gas hole；10th, hole is divided；11st, venthole；12nd, rubber pad；13rd, dustproof cover.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of check bolt, including screw rod 1 and bolt head 2, further include gasket 3, the gasket
3 are equipped with screw hole 4, and internal thread is equipped with the screw hole 4, and annular array is at least on the lower face of 3 outer ring of gasket
Two counterbores 5, the counterbore 5 is interior to be equipped with elastic component 6, gag lever post 7 is connected with the elastic component 6, close to the spiral shell
The screw rod 1 of first 2 one end of bolt is equipped with step 8, and the step 8 is equipped with the external screw thread to match with above-mentioned internal thread, bolt
When in use, the gag lever post 7 on gasket 3 is directed to the position that hole slot is corresponded on fastener, then by the platform on bolt
It is fixed in the screw hole of 8 precession gasket 3 of rank, plays the problem of preventing bolt backspin, be not provided with and limit on by fastener
When the 7 corresponding hole slot of bar of position, the gag lever post 7 of gasket 3 can also play increase friction under the action of elastic component 6, prevent down
The effect of rotation；The screw rod 1 it is tilted be equipped with exhausting-gas hole 9, the downside of exhausting-gas hole 9 is equidistant to be equipped with least two
Point hole 10 communicated with above-mentioned exhausting-gas hole 9, the bolt head 2 are equipped with the venthole 11 communicated with above-mentioned exhausting-gas hole 9, bolt
When screwing, inside can leave air, and bolt fastening effect can be influenced if it cannot empty, so as to spiral shell easily occur
The problem of bolt loosens, and gap content of bolt when vibrations is also easy to produce gas, and the setting of exhausting-gas hole can be discharged effectively
Unnecessary air, increases the fastening performance of bolt, in addition, after bolt fastens for a long time, stuck situation easily occurs, this
When exhausting-gas hole can as the effect of lubrication hole inject lubricating oil, to play lubricating action.
In the utility model, 3 upper surface of gasket is equipped with one layer of rubber pad 12, and 12 performance of rubber pad is soft,
Certain compression buffer distance is given, increases air-tightness, improves the fastening performance of bolt.
In the utility model, the gasket 3 is equal with 8 thickness of step；The counterbore 5 is four, with circular array
The mode of row is arranged on 3 lower face of gasket；Described divides hole 10 to be 4, and in vertical direction with 45 ° of settings, this structure is in conduct
When lubricating action, facilitate the injection of lubricating oil.
In the utility model, the venthole 11 is equipped with dustproof cover 13；The screw rod 1 and the one of bolt head 2
Shaping, integrally formed bolt have more preferable mechanical strength, increase service life.
Special gasket is set on the check bolt, can effectively prevent the situation for occurring loosening, and set inside bolt
Exhausting-gas hole is put, for discharging the gas produced in bolt-clearance, so that be conducive to the acquisition of vacuum between screw hole and thread pitch,
Screw retention ability and fastening performance are further improved, there is the advantages of simple in structure, of low cost.
Every technical staff's notice：Although the utility model is described according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that utility model, and any repacking with inventive concept, will all include this specially
In sharp scope of patent protection.
Claims (7)
1. a kind of check bolt, including screw rod and bolt head, it is characterised in that：Gasket is further included, the gasket is equipped with spiral shell
Hole, the screw hole is interior to be equipped with internal thread, and annular array at least two counterbores, described on the lower face of the gasket outer ring
Counterbore in be equipped with elastic component, be connected with gag lever post on the elastic component, set on the screw rod of close described bolt head one end
There is step, the step is equipped with the external screw thread to match with above-mentioned internal thread, and tilted being equipped with of the screw rod is vented
Hole, it is equidistant on the downside of the exhausting-gas hole to be equipped with least two point holes communicated with above-mentioned exhausting-gas hole, on the bolt head
Equipped with the venthole communicated with above-mentioned exhausting-gas hole.
A kind of 2. check bolt according to claim 1, it is characterised in that：The gasket upper surface is equipped with one layer of rubber
Rubber cushion.
A kind of 3. check bolt according to claim 1, it is characterised in that：The gasket is equal with step thicknesses.
A kind of 4. check bolt according to claim 1, it is characterised in that：The counterbore is four, with annular array
Mode be arranged on gasket lower face.
A kind of 5. check bolt according to claim 1, it is characterised in that：Described divides hole to be 4, in vertical direction with
45 ° of settings.
A kind of 6. check bolt according to claim 1, it is characterised in that：The venthole is equipped with dustproof cover.
A kind of 7. check bolt according to any one of claims 1 to 6, it is characterised in that：The screw rod and bolt head
It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721078488.5U CN207261438U (en) | 2017-08-25 | 2017-08-25 | A kind of check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721078488.5U CN207261438U (en) | 2017-08-25 | 2017-08-25 | A kind of check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261438U true CN207261438U (en) | 2018-04-20 |
Family
ID=61922358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721078488.5U Active CN207261438U (en) | 2017-08-25 | 2017-08-25 | A kind of check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139658A (en) * | 2018-09-12 | 2019-01-04 | 江苏永昊高强度螺栓有限公司 | One kind is from pressure release bolt |
| CN113983060A (en) * | 2020-07-27 | 2022-01-28 | 北京安和博控科技有限公司 | Anti-drop fastening screw |
-
2017
- 2017-08-25 CN CN201721078488.5U patent/CN207261438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139658A (en) * | 2018-09-12 | 2019-01-04 | 江苏永昊高强度螺栓有限公司 | One kind is from pressure release bolt |
| CN113983060A (en) * | 2020-07-27 | 2022-01-28 | 北京安和博控科技有限公司 | Anti-drop fastening screw |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |