CN215950081U - Extrusion type industrial mechanical sealing bolt - Google Patents
Extrusion type industrial mechanical sealing bolt Download PDFInfo
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- CN215950081U CN215950081U CN202122119815.XU CN202122119815U CN215950081U CN 215950081 U CN215950081 U CN 215950081U CN 202122119815 U CN202122119815 U CN 202122119815U CN 215950081 U CN215950081 U CN 215950081U
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- bolt
- sealing
- elastic sealing
- contraction
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Abstract
The utility model discloses an extrusion type industrial mechanical seal bolt which comprises a bolt rod body, a bolt head, a locking thread, a contraction sealing section, a screw seal sleeve, an elastic sealing strip, an elastic sealing ring and an elastic sealing ring. According to the utility model, the bolt rod part and the bolt head part of the sealing bolt can form a sealing structure at the same time, the sealing effect of the sealing bolt is improved, and the sealing stability is strong.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of sealing bolts, in particular to the technical field of extrusion type industrial mechanical sealing bolts.
[ background of the utility model ]
Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts, fasteners of the type consisting of a head and a screw (a cylinder with external threads), are required to be fitted with a nut for fastening two parts with through holes, and this form of connection is called bolted connection. The existing extrusion type bolt is designed and manufactured in a national standard mode, and in order to achieve good sealing, a sealing flat gasket is additionally arranged at a joint so as to achieve good sealing with the joint. But its simple structure, sealed effect is poor, and the use limitation is big, and whole effect is not good.
[ Utility model ] content
The utility model aims to solve the problems in the prior art, and provides an extrusion type industrial mechanical sealing bolt which can enable a bolt rod part and a bolt head part of the sealing bolt to simultaneously form a sealing structure, improves the sealing effect of the sealing bolt and has strong sealing stability.
In order to achieve the purpose, the utility model provides an extrusion type industrial mechanical seal bolt which comprises a bolt rod body, a bolt head, a locking thread, a contraction sealing section, a screw seal sleeve, an elastic sealing strip, an elastic sealing ring and an elastic sealing ring, the bolt rod body and the bolt head are of an integrated structure, locking threads are uniformly arranged on the bolt rod body in a surrounding manner, the upper part of the bolt rod body is provided with a contraction sealing section, the diameter of the contraction sealing section is smaller than the minimum diameter of the locking thread, the contraction sealing section is sleeved with a screw sealing sleeve, the outer side of the screw sealing sleeve is uniformly provided with a plurality of spiral elastic sealing strips in a surrounding manner, an elastic sealing ring is arranged between the adjacent elastic sealing strips, the outer diameter of the elastic sealing strip is larger than the maximum diameter of the locking thread, and an elastic sealing ring is embedded at the bottom of the bolt head.
Preferably, the pitch of the elastic sealing strips is the same as the thread pitch of the locking threads.
Preferably, the shape of the contraction sealing section is a regular multi-pyramid shape with gradually increasing cross-sectional area from bottom to top.
Preferably, the contraction sealing section is uniformly provided with a plurality of arc-shaped grooves, and the inner side surface of the screw sealing sleeve is tightly attached to the arc-shaped grooves.
Preferably, the screw sealing sleeve, the elastic sealing strip and the elastic sealing strip are of an integrated structure.
Preferably, a countersunk hexagon socket head groove is formed in the top center position of the bolt head.
The utility model has the beneficial effects that: according to the utility model, the bolt body, the bolt head, the locking thread, the contraction sealing section, the screw sealing sleeve, the elastic sealing strip, the elastic sealing ring and the elastic sealing ring are combined together, and through experimental optimization, the bolt rod part and the bolt head part of the sealing bolt can simultaneously form a sealing structure, so that the sealing effect of the sealing bolt is improved, and the sealing stability is strong.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a squeeze-type industrial mechanical seal bolt of the utility model.
In the figure: 1-bolt body, 2-bolt head, 3-locking thread, 4-contraction sealing section, 5-screw sealing sleeve, 6-elastic sealing strip, 7-elastic sealing ring, 8-elastic sealing ring, 9-arc groove and 10-countersunk head inner hexagonal groove.
[ detailed description ] embodiments
Referring to fig. 1, the extrusion type industrial mechanical seal bolt of the utility model comprises a bolt body 1, a bolt head 2, a locking thread 3, a contraction sealing section 4, a screw sealing sleeve 5, an elastic sealing strip 6, an elastic sealing ring 7 and an elastic sealing ring 8, wherein the bolt body 1 and the bolt head 2 are of an integrated structure, the locking thread 3 is uniformly arranged on the bolt body 1 in a surrounding manner, the contraction sealing section 4 is arranged at the upper part of the bolt body 1, the diameter of the contraction sealing section 4 is smaller than the minimum diameter of the locking thread 3, the screw sealing sleeve 5 is sleeved on the contraction sealing section 4, a plurality of spiral elastic sealing strips 6 are uniformly arranged on the outer side of the screw sealing sleeve 5 in a surrounding manner, the elastic sealing ring 8 is arranged between adjacent elastic sealing strips 6, the outer diameter of each elastic sealing strip 6 is larger than the maximum diameter of the locking thread 3, the bottom of bolt head 2 is inlayed and is provided with elastic sealing ring 7, elastic sealing strip 6's interval is the same with locking screw thread 3's screw thread interval, shrink seal section 4's shape is for following the positive polygonal pyramid shape that makes progress the cross-sectional area and progressively increase down, evenly be provided with a plurality of convex recesses 9 on the shrink seal section 4, the medial surface and the convex recess 9 of screw rod seal cover 5 closely laminate, screw rod seal cover 5, elastic sealing strip 6 and elastic sealing strip 6 formula structure as an organic whole, the top central point of bolt head 2 puts and is provided with countersunk head hexagon socket head groove 10.
According to the utility model, the bolt body 1, the bolt head 2, the locking thread 3, the contraction sealing section 4, the screw sealing sleeve 5, the elastic sealing strip 6, the elastic sealing ring 7 and the elastic sealing ring 8 are combined together, and through experimental optimization, the bolt rod part and the bolt head 2 of the sealing bolt can simultaneously form a sealing structure, so that the sealing effect of the sealing bolt is improved, and the sealing stability is strong.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides an extrusion formula industry mechanical seal bolt which characterized in that: the bolt comprises a bolt body (1), a bolt head (2), locking threads (3), a contraction sealing section (4), a screw sealing sleeve (5), elastic sealing strips (6), an elastic sealing ring (7) and an elastic sealing ring (8), wherein the bolt body (1) and the bolt head (2) are of an integrated structure, the bolt body (1) is uniformly provided with the locking threads (3) in a surrounding manner, the contraction sealing section (4) is arranged at the upper part of the bolt body (1), the diameter of the contraction sealing section (4) is smaller than the minimum diameter of the locking threads (3), the contraction sealing section (4) is sleeved with the screw sealing sleeve (5), the outer side of the screw sealing sleeve (5) is uniformly provided with a plurality of spiral elastic sealing strips (6) in a surrounding manner, the elastic sealing ring (8) is arranged between adjacent elastic sealing strips (6), and the outer diameter of each elastic sealing strip (6) is larger than the maximum diameter of the locking threads (3), and an elastic sealing ring (7) is embedded at the bottom of the bolt head (2).
2. The extrusion type industrial mechanical seal bolt as recited in claim 1, wherein: the distance between the elastic sealing strips (6) is the same as the thread distance between the locking threads (3).
3. The extrusion type industrial mechanical seal bolt as recited in claim 1, wherein: the shape of the contraction sealing section (4) is a regular multi-pyramid shape with the cross section area gradually increasing from bottom to top.
4. The extrusion type industrial mechanical seal bolt as recited in claim 1, wherein: a plurality of arc-shaped grooves (9) are uniformly formed in the contraction sealing section (4), and the inner side face of the screw sealing sleeve (5) is tightly attached to the arc-shaped grooves (9).
5. The extrusion type industrial mechanical seal bolt as recited in claim 1, wherein: the screw sealing sleeve (5), the elastic sealing strip (6) and the elastic sealing strip (6) are of an integrated structure.
6. The extrusion type industrial mechanical seal bolt as recited in claim 1, wherein: the top center position of the bolt head (2) is provided with a countersunk head inner hexagonal groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122119815.XU CN215950081U (en) | 2021-09-02 | 2021-09-02 | Extrusion type industrial mechanical sealing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122119815.XU CN215950081U (en) | 2021-09-02 | 2021-09-02 | Extrusion type industrial mechanical sealing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950081U true CN215950081U (en) | 2022-03-04 |
Family
ID=80431682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122119815.XU Active CN215950081U (en) | 2021-09-02 | 2021-09-02 | Extrusion type industrial mechanical sealing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950081U (en) |
-
2021
- 2021-09-02 CN CN202122119815.XU patent/CN215950081U/en active Active
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