CN204647304U - PVC slip joint - Google Patents
PVC slip joint Download PDFInfo
- Publication number
- CN204647304U CN204647304U CN201520384561.6U CN201520384561U CN204647304U CN 204647304 U CN204647304 U CN 204647304U CN 201520384561 U CN201520384561 U CN 201520384561U CN 204647304 U CN204647304 U CN 204647304U
- Authority
- CN
- China
- Prior art keywords
- rubber seal
- retainer ring
- connecting tube
- slip joint
- groove
- 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
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Abstract
The utility model discloses a kind of PVC slip joint, comprise connecting tube, rubber seal and retainer ring; One end outer wall of described connecting tube is provided with outside thread, the inwall of described retainer ring is provided with the internal thread matched with described outside thread, described internal thread coordinates with described external thread bolt connection, the inwall that described connecting tube arranges described outside thread one end is provided with the receiving groove being suitable for placing described rubber seal, the inside of described retainer ring forms the annular boss extruding described rubber seal, the sectional shape of described rubber seal is rectangle, and the end face of described rubber seal near described annular boss one end is provided with annular groove.Rubber seal in the utility model to be subject to amount of deformation after the extruding of annular boss large, thus can fit tightly with pipeline outer wall and receiving groove inwall, sealing effect is fine.
Description
Technical field
The utility model relates to a kind of slip joint, belongs to technical field of pipeline connection.
Background technique
In standpipe installation, fast with service sleeve speed of application, but the position of upper and lower pipeline is fixed between floors, needs to stretch to fetch connection.
A kind of peer layer expansion joint is disclosed in patent documentation CN101865341A, comprise same layer retractable body, locking ring, rubber seal, wherein retractable body comprises the upper and lower bellmouth communicated, upper bellmouth and lower bellmouth are separated by limited ring, the degree of depth of upper bellmouth is 2 ~ 2.5 times of the lower bellmouth degree of depth, is provided with internal lining pipe with bellmouth under layer telescoping connection; Upper end is connected with limited ring and concentric to downward-extension and retractable body, and like that you form annular space between described internal lining pipe outer wall and slip joint inner walls, this annular space is greater than the national regulation wall thickness of corresponding tubing.When mounted, pipeline is ensured and with the sealing between layer retractable body by locking ring extruding rubber seal.
The sectional shape of the rubber seal in above-mentioned patent documentation is O type, and after being squeezed, amount of deformation is limited, and sealing effect exists unstability.
Model utility content
To this, the purpose of this utility model is to provide the reliable PVC slip joint of a kind of sealability.
The technological scheme realizing the utility model object is:
A kind of PVC slip joint, comprises connecting tube, rubber seal and retainer ring; One end outer wall of described connecting tube is provided with outside thread, the inwall of described retainer ring is provided with the internal thread matched with described outside thread, described internal thread coordinates with described external thread bolt connection, the inwall that described connecting tube arranges described outside thread one end is provided with the receiving groove being suitable for placing described rubber seal, the inside of described retainer ring forms the annular boss extruding described rubber seal, the sectional shape of described rubber seal is rectangle, and the end face of described rubber seal near described annular boss one end is provided with annular groove.
In technique scheme, the sectional shape of described annular groove is trapezoidal, triangle, semicircle or rectangle.
In technique scheme, the groove of shaping applicable adhesive label on the outer wall of described connecting tube, the diapire of described groove forms protruding decorative pattern.
In technique scheme, the outer wall of described retainer ring forms concavo-convex alternate structure, exert a force when being beneficial to screw described retainer ring.
The utility model has positive effect: in (1) slip joint of the present utility model, the sectional shape of rubber seal is rectangle, the end face of described rubber seal near described annular boss one end is provided with annular groove, so, when tightening retainer ring, the extrusion deformation degree that rubber seal is subject to annular boss is large, and can and fit tightly between pipeline outer wall and receiving groove inwall, therefore sealing effect is better.(2) in slip joint of the present utility model, described connecting tube outer wall is provided with applicable labelled groove, and arranges protruding decorative pattern at bottom portion of groove, is so not easily worn away in groove by tag adhesive, and it is due to the existence of decorative pattern, more convenient when tearing label.
Accompanying drawing explanation
Fig. 1 is the positive direction view of PVC slip joint of the present utility model;
Fig. 2 is the sectional view of A-A line cutting in Fig. 1;
Fig. 3 is in the utility model, the structural representation of described rubber seal.
Reference character shown in figure is: 1-connecting tube; 11-receiving groove; 12-groove; 2-rubber seal; 21-annular groove; 3-retainer ring; 31-annular boss.
Embodiment
Do to illustrate below in conjunction with the concrete structure of Figure of description to the PVC slip joint in the utility model:
A kind of PVC slip joint, as shown in Figure 1 to Figure 3, it comprises connecting tube 1, rubber seal 2 and retainer ring 3; One end outer wall of described connecting tube 1 is provided with outside thread, the inwall of described retainer ring 3 is provided with the internal thread matched with described outside thread, described internal thread coordinates with described external thread bolt connection, the inwall that described connecting tube 1 arranges described outside thread one end is provided with the receiving groove 11 being suitable for placing described rubber seal 2, the inside of described retainer ring 3 forms the annular boss 31 extruding described rubber seal 2, the sectional shape of described rubber seal 2 is rectangle, and the end face of described rubber seal 2 near described annular boss 31 one end is provided with annular groove 21.In the slip joint of the present embodiment, the sectional shape of rubber seal 2 is rectangle, the end face of described rubber seal 2 near described annular boss 31 one end is provided with annular groove 21, so, when tightening retainer ring 3, the extrusion deformation degree that rubber seal 2 is subject to annular boss 31 is large, and can and fit tightly between pipeline outer wall and receiving groove 11 inwall, therefore sealing effect is better.
The sectional shape of the described annular groove 21 in the present embodiment is trapezoidal, triangle, semicircle or rectangle.
Further, the groove 12 of shaping applicable adhesive label on the outer wall of described connecting tube 1, the diapire of described groove 12 forms protruding decorative pattern.In the slip joint of the present embodiment, described connecting tube 1 outer wall is provided with applicable labelled groove 12, and protruding decorative pattern is set bottom groove 12, so tag adhesive is not easily worn away in groove 12, and due to the existence of decorative pattern, make the removing of label convenient, if the bottom surface of groove 12 is planes, then label glue-line is residual is difficult to clean out.
Further again, the outer wall of described retainer ring 3 forms concavo-convex alternate structure, exerts a force when being beneficial to screw described retainer ring 3, be provided with like this and be beneficial to described retainer ring 3 and loosen and tighten.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection domain of the present utility model.
Claims (4)
1. a PVC slip joint, is characterized in that: comprise connecting tube (1), rubber seal (2) and retainer ring (3), one end outer wall of described connecting tube (1) is provided with outside thread, the inwall of described retainer ring (3) is provided with the internal thread matched with described outside thread, described internal thread coordinates with described external thread bolt connection, the inwall that described connecting tube (1) arranges described outside thread one end is provided with the receiving groove (11) being suitable for placing described rubber seal (2), the inside of described retainer ring (3) forms the annular boss (31) of the described rubber seal of extruding (2), the sectional shape of described rubber seal (2) is rectangle, the end face of described rubber seal (2) near described annular boss (31) one end is provided with annular groove (21).
2. PVC slip joint according to claim 1, is characterized in that: the sectional shape of described annular groove (21) is trapezoidal, triangle, semicircle or rectangle.
3. PVC slip joint according to claim 1, is characterized in that: the groove (12) of shaping applicable adhesive label on the outer wall of described connecting tube (1), the diapire of described groove (12) forms protruding decorative pattern.
4. the PVC slip joint according to claim 1 or 2 or 3, is characterized in that: the outer wall of described retainer ring (3) forms concavo-convex alternate structure, exerts a force when being beneficial to screw described retainer ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384561.6U CN204647304U (en) | 2015-06-04 | 2015-06-04 | PVC slip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384561.6U CN204647304U (en) | 2015-06-04 | 2015-06-04 | PVC slip joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647304U true CN204647304U (en) | 2015-09-16 |
Family
ID=54100058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520384561.6U Expired - Fee Related CN204647304U (en) | 2015-06-04 | 2015-06-04 | PVC slip joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426574A (en) * | 2019-07-29 | 2019-11-08 | 南京瑞贻电子科技有限公司 | A kind of oscillograph waterproof case |
| CN111791053A (en) * | 2020-06-23 | 2020-10-20 | 浙江中财管道科技股份有限公司 | Telescopic joint spiral cover assembling integrated machine |
-
2015
- 2015-06-04 CN CN201520384561.6U patent/CN204647304U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426574A (en) * | 2019-07-29 | 2019-11-08 | 南京瑞贻电子科技有限公司 | A kind of oscillograph waterproof case |
| CN110426574B (en) * | 2019-07-29 | 2020-07-03 | 南京瑞贻电子科技有限公司 | Waterproof shell of wave recorder |
| CN111791053A (en) * | 2020-06-23 | 2020-10-20 | 浙江中财管道科技股份有限公司 | Telescopic joint spiral cover assembling integrated machine |
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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: 20150916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |