CN204458740U - A kind of sealing bolt - Google Patents
A kind of sealing bolt Download PDFInfo
- Publication number
- CN204458740U CN204458740U CN201520091667.7U CN201520091667U CN204458740U CN 204458740 U CN204458740 U CN 204458740U CN 201520091667 U CN201520091667 U CN 201520091667U CN 204458740 U CN204458740 U CN 204458740U
- Authority
- CN
- China
- Prior art keywords
- bolt
- seal ring
- compressing member
- elastic seal
- external diameter
- 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
Links
Abstract
The utility model discloses a kind of sealing bolt, aim to provide a kind of sealing bolt, there is good seal performance, also be convenient to dismounting simultaneously, its drip irrigation device comprises the bolt shank and seal bar that are wholely set, and the outer side wall of described bolt shank is provided with screw thread, and described seal bar is arranged with elastic seal ring and compressing member successively, the external diameter of described elastic seal ring is less than the external diameter of bolt shank, and described compressing member is threaded with seal bar.
Description
Technical field
The utility model relates to fastener areas, and more particularly, it relates to a kind of sealing bolt.
Background technique
It is one of the most frequently used mechanical connection manner that bolt connects, and has occurred now different bolt type and different bolt fastening structures.In order to prevent introduced contaminants and internal flow from bolted connection position infiltration leakage, the mode that people have invented a series of exquisiteness seals bolt.Such as, pad effectively can prevent bolt and surface of test piece and the leakage with nut junction plane position; The sealing at screw thread place can be realized by sealer; At screw thread position, seal ring is installed, realizes the locking of screw thread position and sealing.
At present, application number be 201320730388.1 Chinese patent disclose a kind of bolt with seal ring, it comprises the bolt head, connecting rod and the bolt shank that set gradually, bolt shank is provided with outside thread, connecting rod is provided with annular groove, be provided with the seal ring of adaptive annular groove in annular groove, the joint of connecting rod and bolt head is provided with seal ring.Although this bolt can play certain seal action, but the outer side wall size being set in the seal ring in annular groove is fixing inconvenience, and we reach sealing effect, the external diameter of seal ring can be greater than the diameter of bolt hole, need when installation to extrude seal ring to be just placed in bolt hole, the madial wall of the outer side wall of seal ring and bolt hole is conflicted state always, but when needing to dismantle bolt, just needs extra applying torsion offsets the resistance that seal ring brings, dismounting bothers very much, also can cause heavy wear to seal ring simultaneously, reduce working life.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of sealing bolt, has good seal performance, is also convenient to dismounting simultaneously.
For achieving the above object, the utility model provides following technological scheme:
A kind of sealing bolt, comprise the bolt shank and seal bar that are wholely set, the outer side wall of described bolt shank is provided with screw thread, and described seal bar is arranged with elastic seal ring and compressing member successively, the external diameter of described elastic seal ring is less than the external diameter of bolt shank, and described compressing member is threaded with seal bar.
Further setting: described compressing member is provided with the collet threaded hole be threaded with seal bar, one end and the elastic seal ring of described compressing member are inconsistent, the other end be provided with press flange, described press flange is provided with friction part.
Further setting: the another side of the corresponding bolt shank of described seal bar is provided with the swivelling chute caved inward.
Further setting: the external diameter of described elastic seal ring is less than the external diameter 0.5 ~ 1mm of bolt shank.
Further setting: described elastic seal ring is provided with chamfering towards the madial wall of compressing member one end, described compressing member is provided with cutting graftage part of matching with chamfering.
Further setting: described chamfering is 30 degree.
The utility model beneficial effect:
In sealing bolt double thread hole, rotary seal bolt is placed in tapped hole, external diameter due to described elastic seal ring is less than the external diameter of bolt shank, when making in bolt precession tapped hole, the outer side wall of elastic seal ring can not contact with tapped hole, when rotating this bolt, additionally can not increase resistance, convenient installation; Rotatably compress part again, compressing member is made to compress elastic seal ring, described elastic seal ring compressive deformation, makes the madial wall of the outer side wall outwardly convex of elastic seal ring and tapped hole inconsistent, plays excellent sealing effect, also can prevent this bolt looseness simultaneously, when disassembly is desired, can compressing member be unclamped, compressing member and elastic seal ring are separated, make elastic seal ring recover original form, be convenient to dismounting.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sealing bolt of the utility model;
Fig. 2 is the sectional view of a kind of sealing bolt of the utility model;
Fig. 3 is A partial enlarged drawing in Fig. 2.
Description of reference numerals: 1, bolt shank; 2, seal bar; 21, swivelling chute; 3, elastic seal ring; 31, chamfering; 4, compressing member; 41, collet threaded hole; 42, press flange; 43, cutting graftage part.
Embodiment
With reference to accompanying drawing 1 to Fig. 3, a kind of sealing bolt of the utility model is described in further details.
A kind of sealing bolt, comprise the bolt shank 1 and seal bar 2 that are wholely set, the outer side wall of described bolt shank 1 is provided with screw thread, described seal bar 2 is arranged with elastic seal ring 3 and compressing member 4 successively, the external diameter of described elastic seal ring 3 is less than the external diameter of bolt shank 1, the external diameter of described elastic seal ring 3 is less than the external diameter 0.5 ~ 1mm of bolt shank 1, elastic seal ring 3 can be prevented so inconsistent with the inner side of tapped hole before not compressed, additionally increase rotating force.
Described compressing member 4 is provided with the collet threaded hole 41 be threaded with seal bar 2, one end and the elastic seal ring 3 of described compressing member 4 are inconsistent, the other end be provided with press flange 42, the cross section of press flange 42 can be circular or positive shape changeable, described press flange 42 is provided with friction part, this friction part can be the convex tendon of the outer side wall outwardly convex of press flange 42, and this convex tendon circumference is evenly distributed on the outer side wall of press flange 42.
The another side of the corresponding bolt shank 1 of described seal bar 2 is provided with the swivelling chute 21 caved inward, and such user can pass through swivelling chute 21, swivel bolt, very convenient.
Described elastic seal ring 3 is provided with chamfering 31 towards the madial wall of compressing member 4 one end, described chamfering 31 is preferably 30 degree, described compressing member 4 is provided with cutting graftage part 43 of matching with chamfering 31, rotatably compress part 4 like this, when compressing member 4 presses elastic seal ring 3 downwards, match with chamfering 31 in cutting graftage part 43, the madial wall being convenient to the lateral outer lug of elastic seal ring 3 and tapped hole is inconsistent.
In sealing bolt double thread hole, rotary seal bolt is placed in tapped hole, external diameter due to described elastic seal ring 3 is less than the external diameter of bolt shank 1, when making in bolt precession tapped hole, the outer side wall of elastic seal ring 3 can not contact with tapped hole, when rotating this bolt, additionally can not increase resistance, convenient installation; Rotatably compress part 4 again, compressing member 4 is made to compress elastic seal ring 3, described elastic seal ring 3 compressive deformation, makes the madial wall of the outer side wall outwardly convex of elastic seal ring 3 and tapped hole inconsistent, plays excellent sealing effect, also can prevent this bolt looseness simultaneously, when disassembly is desired, compressing member 4 can be unclamped, compressing member 4 and elastic seal ring 3 are separated, make elastic seal ring 3 recover original form, be convenient to dismounting.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a sealing bolt, comprise the bolt shank and seal bar that are wholely set, the outer side wall of described bolt shank is provided with screw thread, it is characterized in that: described seal bar is arranged with elastic seal ring and compressing member successively, the external diameter of described elastic seal ring is less than the external diameter of bolt shank, and described compressing member is threaded with seal bar.
2. a kind of sealing bolt according to claim 1, it is characterized in that: described compressing member is provided with the collet threaded hole be threaded with seal bar, one end and the elastic seal ring of described compressing member are inconsistent, the other end be provided with press flange, described press flange is provided with friction part.
3. a kind of sealing bolt according to claim 1, is characterized in that: the another side of the corresponding bolt shank of described seal bar is provided with the swivelling chute caved inward.
4. a kind of sealing bolt according to claim 1, is characterized in that: the external diameter of described elastic seal ring is less than the external diameter 0.5 ~ 1mm of bolt shank.
5. a kind of sealing bolt according to claim 1, is characterized in that: described elastic seal ring is provided with chamfering towards the madial wall of compressing member one end, and described compressing member is provided with cutting graftage part of matching with chamfering.
6. a kind of sealing bolt according to claim 5, is characterized in that: described chamfering is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091667.7U CN204458740U (en) | 2015-02-07 | 2015-02-07 | A kind of sealing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091667.7U CN204458740U (en) | 2015-02-07 | 2015-02-07 | A kind of sealing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458740U true CN204458740U (en) | 2015-07-08 |
Family
ID=53665632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520091667.7U Expired - Fee Related CN204458740U (en) | 2015-02-07 | 2015-02-07 | A kind of sealing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458740U (en) |
-
2015
- 2015-02-07 CN CN201520091667.7U patent/CN204458740U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |