CN203500244U - Retaining and stretchable gasket - Google Patents
Retaining and stretchable gasket Download PDFInfo
- Publication number
- CN203500244U CN203500244U CN201320655384.1U CN201320655384U CN203500244U CN 203500244 U CN203500244 U CN 203500244U CN 201320655384 U CN201320655384 U CN 201320655384U CN 203500244 U CN203500244 U CN 203500244U
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- CN
- China
- Prior art keywords
- packing ring
- gasket
- retaining
- inner sleeve
- overcoat
- 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 - Lifetime
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a retaining and stretchable gasket, and belongs to the technical field of fastening pieces. The retaining and stretchable gasket comprises a gasket outer sleeve and a gasket inner sleeve. The gasket outer sleeve is a hollow outer hexahedron, the section of an inner hole of the gasket outer sleeve is cylindrical or polygonal, the gasket inner sleeve is a hollow column body with one end provided with a boss, an inner hole of the gasket inner sleeve is provided with standard threads, the gasket outer sleeve is connected with the gasket inner sleeve through teeth, or keys, or pins or polygons, and the outer wall of the gasket inner sleeve is in clearance fit with the inner wall of the gasket outer sleeve. The upper surface of the gasket outer sleeve is a plane, and one-way teeth are arranged on the lower surface of the gasket outer sleeve. In the bolt fastening process, the retaining and stretchable gasket and nuts coaxially rotate under action and reaction, common lateral unbalance loading due to rotation friction is eliminated, rotation friction is reduced, and the service life of a bolt is prolonged. When the nuts further rotate, the bolt is stretched out in the axial direction, threads of the inner sleeve of the retaining and stretchable gasket raise along with extension of the bolt, a double-nut structure is formed, and loosening is prevented. The one-way teeth are arranged on the lower surface of the gasket outer sleeve, and a retaining effect is achieved.
Description
Technical field
The utility model relates to technical field of fastening, definitely says that it is a kind of without unbalance loading retaining stretching packing ring.
Background technique
Packing ring is a kind of conventional fastening piece, normal and bolt, nut are used in conjunction with, it is all standard piece that present conventional packing ring has plain cushion, spring pad, general packing ring is placed on below nut, be during for fastening nuts, reduce fastened thing skin friction, increase by the mechanical strength of tight thing, prevent from destroying fastened thing surface finishment, the effects such as anti-back.When reaching fastening pretightening force, spring pad has become plain cushion has not had retaining effect, but causes bolt side direction unbalance loading excessive.The domestic good method that does not also solve bolt, nut, plain cushion, produces side direction unbalance loading problem when fastening till now.
Summary of the invention
The purpose of this utility model is to provide a kind of retaining stretching packing ring that effectively prevents bolt side direction unbalance loading.
The purpose of this utility model is achieved through the following technical solutions: retaining stretching packing ring, comprise packing ring overcoat, packing ring inner sleeve, and it is characterized in that: described packing ring overcoat is the outer hexahedron of hollow, and packing ring overcoat inner hole section is circular; Packing ring inner sleeve is hollow cylinder, external diameter one end of hollow cylinder is with boss, and the external diameter cross section of packing ring inner sleeve is circular, and the endoporus of packing ring inner sleeve is shaped with standard thread, packing ring outer wall of inside race and packing ring outer casing inner wall interference fit, packing ring inner sleeve can be in packing ring overcoat direct-axis to single-way moving.
Described packing ring overcoat and packing ring inner sleeve mesh by tooth or key.
The described packing ring overcoat that comprises is connected by pin with packing ring inner sleeve.
Described packing ring overcoat inner hole section is polygonal, and the external diameter cross section of packing ring inner sleeve is polygonal, and packing ring overcoat is connected by polygonal shape face with packing ring inner sleeve.
Described packing ring overcoat upper surface is plane, and lower surface has unidirectional tooth.
Described packing ring overcoat outer side surface is provided with locking groove.
The beneficial effects of the utility model: the utlity model has simple in structure, reliable lock, advantage easy to use.In bolton process, retaining stretching packing ring and nut active force and reaction force coaxial rotating, eliminated the common side direction unbalance loading causing due to rotation, friction, reduces side direction unbalance loading, frictional force, extends the life-span of bolt.When nut is further rotated, bolt is by axial tension, and the interior thread die cutting of now retaining stretching packing ring also rises with the elongation of bolt, forms double nuts structure.In whole fastening process, the effect of this double nut exists all the time, can solve the problem of the nut loosening that is difficult for discovering causing because of vibrations.On the lower surface of packing ring overcoat, be provided with unidirectional tooth, during use, retaining stretching packing ring with by the surface of tight thing, do not had and relatively rotate, rotate and only occur in the lower surface of nut and with it between the upper surface of connecting part retaining stretching packing ring.
Accompanying drawing explanation
Fig. 1 is retaining stretching gasket construction figure.
Fig. 2 is the structural representation of embodiment's 1 middle washer inner sleeve.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the structural representation of embodiment's 1 middle washer overcoat.
Fig. 5 is the worm's eye view of Fig. 4.
Fig. 6 be in Fig. 5 F to unfolded drawing.
Fig. 7 is the structural representation of embodiment's 2 middle washer inner sleeves.
Fig. 8 is the plan view of Fig. 7.
Fig. 9 is the structural representation of embodiment's 2 middle washer overcoats.
Figure 10 is the worm's eye view of Fig. 9.
Figure 11 is use phase diagram a of the present utility model.
Figure 12 is use phase diagram b of the present utility model.
Figure 13 is use phase diagram c of the present utility model.
Figure 14 is use phase diagram d of the present utility model.
Embodiment
Embodiment 1:
Retaining stretching packing ring, as shown in Fig. 1-6, consists of packing ring overcoat 1, packing ring inner sleeve 2, and packing ring overcoat 1 is the outer hexahedron of hollow, and the inner hole section of packing ring overcoat 1 is circular.The upper surface of packing ring overcoat 1 is plane, and lower surface is provided with unidirectional tooth 3, is provided with locking groove 4 on its outer side surface.Packing ring inner sleeve 2 is hollow cylinder, external diameter one end of hollow cylinder is with boss 5, the external diameter cross section of packing ring inner sleeve 2 is circular, the endoporus of packing ring inner sleeve 2 is shaped with standard thread 6, at packing ring overcoat 1 inwall, be shaped with internal tooth 7, packing ring inner sleeve 2 outer walls are shaped with external tooth 8, and packing ring overcoat 1 meshes by external tooth and internal tooth with packing ring inner sleeve 2.
Embodiment 2:
Retaining stretching packing ring, as shown in Fig. 7-10, consists of packing ring overcoat 1, packing ring inner sleeve 2, and packing ring overcoat 1 is the outer hexahedron of hollow, and the inner hole section of packing ring overcoat 1 is regular polygon.The upper surface of packing ring overcoat 1 is plane, and lower surface is provided with unidirectional tooth 3, is provided with locking groove 4 on its outer side surface.Packing ring inner sleeve 2 is hollow cylinder, and external diameter one end of hollow cylinder is with boss 5, and the external diameter cross section of packing ring inner sleeve 2 is polygonal, and the endoporus of packing ring inner sleeve 2 is shaped with standard thread 6, and packing ring overcoat 1 is connected by polygonal shape face with packing ring inner sleeve 2.Packing ring inner sleeve 2 outer walls and packing ring overcoat 1 inwall interference fit, packing ring inner sleeve 2 can be at the interior direct-axis of packing ring overcoat 1 to single-way moving.
Using process of the present utility model is as shown in Figure 11-14, and in figure, 9 is plain bolt, and 10 is retaining stretching packing ring, and 11 is fastened workpiece, 12 common six-sided nuts.
First retaining stretching packing ring 10 is installed on plain bolt 9, and state as shown in figure 11.
Then common six-sided nut 12 is installed, as shown in figure 12.
Rotate common six-sided nut 12, as shown in Figure 13, Figure 14, when common hexagon nut is further rotated, the common six-sided nut of coaxial rotating and retaining stretching packing ring have been eliminated the side direction unbalance loading of bolt by active force and reaction force.Bolt is by axial tension time, and the interior thread die cutting of retaining stretching packing ring also rises with the elongation of bolt, forms double nuts structure.
Claims (7)
1. retaining stretching packing ring, comprises packing ring overcoat, packing ring inner sleeve, it is characterized in that: described packing ring overcoat is the outer hexahedron of hollow, and packing ring overcoat inner hole section is circular; Packing ring inner sleeve is hollow cylinder, external diameter one end of hollow cylinder is with boss, and the external diameter cross section of packing ring inner sleeve is circular, and the endoporus of packing ring inner sleeve is shaped with standard thread, packing ring outer wall of inside race and packing ring outer casing inner wall interference fit, packing ring inner sleeve can be in packing ring overcoat direct-axis to single-way moving.
2. retaining stretching packing ring according to claim 1, is characterized in that: described packing ring overcoat and packing ring inner sleeve mesh by tooth or key.
3. retaining stretching packing ring according to claim 1, is characterized in that: the described packing ring overcoat that comprises is connected by pin with packing ring inner sleeve.
4. retaining stretching packing ring according to claim 1, is characterized in that: described packing ring overcoat inner hole section is polygonal, and the external diameter cross section of packing ring inner sleeve is polygonal, and packing ring overcoat is connected by polygonal shape face with packing ring inner sleeve.
5. according to the retaining stretching packing ring described in claim or 2 or 3 or 4, it is characterized in that: described packing ring overcoat upper surface is plane, and lower surface has unidirectional tooth.
6. according to the retaining stretching packing ring described in claim 1 or 2 or 3 or 4, it is characterized in that: described packing ring overcoat outer side surface is provided with locking groove.
7. retaining stretching packing ring according to claim 5, is characterized in that: described packing ring overcoat outer side surface is provided with locking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655384.1U CN203500244U (en) | 2013-10-23 | 2013-10-23 | Retaining and stretchable gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655384.1U CN203500244U (en) | 2013-10-23 | 2013-10-23 | Retaining and stretchable gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500244U true CN203500244U (en) | 2014-03-26 |
Family
ID=50331224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320655384.1U Expired - Lifetime CN203500244U (en) | 2013-10-23 | 2013-10-23 | Retaining and stretchable gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500244U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343980A (en) * | 2014-10-31 | 2015-02-11 | 无锡市新颖密封材料厂 | Sealing ring with threaded structure |
| CN105782216A (en) * | 2016-05-16 | 2016-07-20 | 蔡文斌 | Torque rotating and floating load anti-loosening gasket |
| CN105805146A (en) * | 2016-05-31 | 2016-07-27 | 常州市耐斯工控工程有限公司 | Anti-stirring fastener gasket with slip sheet |
| CN107366656A (en) * | 2017-09-02 | 2017-11-21 | 上海魁殊自动化科技有限公司 | A kind of preparation method of stepless closedown structure and its lockout post |
-
2013
- 2013-10-23 CN CN201320655384.1U patent/CN203500244U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343980A (en) * | 2014-10-31 | 2015-02-11 | 无锡市新颖密封材料厂 | Sealing ring with threaded structure |
| CN105782216A (en) * | 2016-05-16 | 2016-07-20 | 蔡文斌 | Torque rotating and floating load anti-loosening gasket |
| CN105805146A (en) * | 2016-05-31 | 2016-07-27 | 常州市耐斯工控工程有限公司 | Anti-stirring fastener gasket with slip sheet |
| CN107366656A (en) * | 2017-09-02 | 2017-11-21 | 上海魁殊自动化科技有限公司 | A kind of preparation method of stepless closedown structure and its lockout post |
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