CN201764158U - Self-clamping type pipe joint - Google Patents
Self-clamping type pipe joint Download PDFInfo
- Publication number
- CN201764158U CN201764158U CN2010202539930U CN201020253993U CN201764158U CN 201764158 U CN201764158 U CN 201764158U CN 2010202539930 U CN2010202539930 U CN 2010202539930U CN 201020253993 U CN201020253993 U CN 201020253993U CN 201764158 U CN201764158 U CN 201764158U
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- self
- clamping type
- type pipe
- joint
- elastic collar
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Abstract
The utility model provides a self-clamping type pipe joint, which belongs to the technical field of pipe fitting connection. The utility model solves the problems of complicated connection in operation and poor sealing performance of the existing pipe fitting connection. The self-clamping type pipe joint comprises a cylindrical joint body, wherein a step is arranged in one end of the joint body, a part of the joint body positioned in the part from the step to an opening of the joint body is a reverse conical cavity with the gradually reduced radius, an elastic clamp ring capable of changing the size of the inner diameter of the elastic clamp ring under the effect of external force is arranged in the joint body, and the elastic clamp ring is positioned in the reverse conical cavity. The self-clamping type pipe joint of the utility model has the advantages of good sealing performance and the like, and is simple in operation and convenient in connection.
Description
Technical field
The utility model belongs to pipe fitting interconnection technique field, relates to a kind of jointing of pipe fitting, particularly a kind of self-clamping type pipe joint that externally connected pipe directly can be inserted and realized from card.
Background technique
In the prior art, pipe joint is fairly simple, and machining internal thread in the through hole of joint only is connected by the outside thread with the pipe termination pipe is linked together.This traditional pipe coupling is with low cost, must twine raw meal belt but construct on the outside thread of pipe termination when assembling, and with pipe wrench pipe is screwed in the joint again, and construction is complicated loaded down with trivial details, wastes time and energy, and generally could be operated by the professional workforce.The sheet-metal duct that particularly has makes the tube wall of this connecting end become thinner after its connecting end is provided with screw thread, and the joint that causes connecting ruptures easily.And the connection of PPR, PE pipe needs the special device hot melt, and the plastic-aluminum pipe connects and the installation more complicated.
At the problem that prior art exists, the claimant has applied for the quick link of a kind of pipe fitting [notice of authorization number be: CN2238954Y], and it comprises pipe junctor, chucking nut and rubber washer; Be provided with the cone locking ring between rubber washer and chucking nut, when the revotating card jack panel, the axial force of generation is pressed on rubber washer and is taken on pipeline outer wall and the pipe junctor inwall, and makes cone locking ring chucking be taken over the road simultaneously.
The link of this structure solves the connectivity problem that pipe fitting exists in the prior art, but it is more loaded down with trivial details that this joint is operated in assembly process, during use, earlier chucking nut, taper lock ring, pad, rubber washer are enclosed within on the connecting tube, pipeline is inserted on the pipe fitting with matching again, change tight chucking nut, realize the connection of pipeline.Therefore, this joint is more loaded down with trivial details in operation.Removably connect owing to exist in this joint, can have influence on the sealing of this joint when dismounting and installation, thereby cause the sealing difference that the phenomenon of leak of liquid takes place.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of self-clamping type pipe joint of simple to operate, easy to connect, good airproof performance.
The purpose of this utility model can realize by following technical proposal:
This self-clamping type pipe joint, comprise tubular joint body, be provided with step in one end of described joint body, described joint body is positioned at step to the part of joint body opening and is the turbination cavity that radius diminishes gradually, it is characterized in that, be provided with the elastic collar that can change its internal diameter size under external force in the described joint body, described elastic collar is positioned at above-mentioned turbination cavity.
This self-clamping type pipe joint in use is inserted into the opening of externally connected pipe from joint body in the joint body, continues to promote externally connected pipe when externally connected pipe touches elastic collar, makes externally connected pipe pass elastic collar.Because elastic collar is subjected to the extruding of externally connected pipe and externally connected pipe is produced a clamping force, elastic collar is along with externally connected pipe outwards motion together when externally connected pipe outwards spurs.In movement process, because being positioned at step to the part of joint body opening, joint body is the turbination cavity that radius diminishes gradually, so elastic collar is subjected to from the extruding force of turbination cavity to it, make the internal diameter of elastic collar diminish, cause the clamping force of externally connected pipe tighter, under the effect of elastic collar clamping force, the externally connected pipe difficult drop-off.This self-clamping type pipe joint structure is simple, more convenient when connecting, and does not need externally connected pipe to be linked on this self-clamping type pipe joint by being threaded, and is time saving and energy saving.
In above-mentioned self-clamping type pipe joint, described elastic collar comprises supporting portion that its outside can fit with above-mentioned turbination cavity and the latch of circumferentially being located at inboard, described supporting portion, and described latch is that the crown of several and described latch is equal to the distance of medial axis, supporting portion.
For the outside that can make the supporting portion can fit with the turbination cavity in the joint body, then the outside of supporting portion has certain tapering, makes things convenient for the supporting portion to cooperate with the turbination cavity like this.Supporting portion with tapering can change the internal diameter size of supporting portion along with the size of turbination cavity in the process that moves along joint body.
In above-mentioned self-clamping type pipe joint, described latch towards direction away from the joint body opening.
The purpose of She Zhiing is like this, and latch is little to the resistance of externally connected pipe in the time of in externally connected pipe is inserted into joint body, makes things convenient for the insertion of externally connected pipe; When connecting externally connected pipe and externally connected pipe outwards spurred, latch is resisted against the outer side wall of externally connected pipe jointly, outside more pulling externally connected pipe then latch is just big more to the surface friction drag of externally connected pipe, and just big more at the surface friction drag between externally connected pipe and the latch under the effect of externally connected pipe fluid pressure, reach the effect of chucking externally connected pipe.
In above-mentioned self-clamping type pipe joint, described elastic collar is made by plastic materials.Plastic materials itself has certain elasticity, and this elastic collar can change the size of himself internal diameter under external force, and elastic collar can return to original state again after external force disappears.
In above-mentioned self-clamping type pipe joint, the sidewall of described elastic collar is provided with opening.The purpose of She Zhiing is like this, when elastic collar reaches bigger in the change that the time spent can make the elastic collar internal diameter size of doing that is subjected to external force.The elastic collar that internal diameter diminishes can conveniently be put in the joint body from the joint body opening, and is simple in structure, easy to operate.
As another kind of situation, in above-mentioned self-clamping type pipe joint, described elastic collar comprises the card body and the connecting body that is connected two adjacent card bodies of some circumferential distributions, and described connecting body is made by elastic material.
In above-mentioned self-clamping type pipe joint, the outer side surface of described card body is the tapering that is complementary with above-mentioned turbination cavity, and described card body inner circumferential offers latch.
In above-mentioned self-clamping type pipe joint, described card body is made by metallic material.
When card is pressed the metal externally connected pipe, the card physical efficiency that is made of metal with external restrict and suppress by means of administrative decrees, etc. more firm; The connecting body of being made by elastic material can provide the elasticity of whole elastic collar, makes things convenient for the installation and removal of elastic collar.
In above-mentioned self-clamping type pipe joint, be provided with the O RunddichtringO that is resisted against the step place in the described turbination cavity.
In order to increase the sealing between joint body and the externally connected pipe, the O RunddichtringO is set in the turbination cavity.
In above-mentioned self-clamping type pipe joint, described joint body the inner also is provided with the positioning step that is used to locate externally connected pipe.The purpose of She Zhiing is like this, in the time of in externally connected pipe is inserted into joint body, externally connected pipe is resisted against on the positioning step, prevents that externally connected pipe from further entering in the joint body, after externally connected pipe was by elastic collar card jail, positioning step can also prevent moving axially of externally connected pipe.
Compared with prior art, this self-clamping type pipe joint has the following advantages:
1, this self-clamping type pipe joint is when connecting externally connected pipe, only needs externally connected pipe is inserted in the joint body get final product, and then is pulled outwardly after externally connected pipe rotated a circle with regard to realizing the clamping to externally connected pipe, and is simple to operation.
2, this self-clamping type pipe joint structure is simple, does not need just externally connected pipe to be connected firmly by other Placements; And between adaptor tube body and externally connected pipe, be provided with the O RunddichtringO, make the better tightness of this self-clamping type pipe joint.
Description of drawings
Fig. 1 is the structural representation of this self-clamping type pipe joint.
Fig. 2 is the structural representation that externally connected pipe is inserted into this self-clamping type pipe joint.
Fig. 3 is the plan view of this elastic collar.
Fig. 4 is the sectional view of this elastic collar.
Fig. 5 is the structural representation of elastic collar among the embodiment two.
Among the figure, 1, joint body; 11, step; 12, turbination cavity; 13, positioning step; 2, elastic collar; 21, supporting portion; 22, latch; 23, opening; 24, card body; 25, connecting body; 3, O RunddichtringO; 4, externally connected pipe.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
Self-clamping type pipe joint as shown in Figure 1 can be used for the two ends of valve, comprise tubular joint body 1, be provided with step 11 in one end of joint body 1, joint body 1 is positioned at step 11 to the part of joint body 1 opening and is the turbination cavity 12 that radius diminishes gradually, be provided with the O RunddichtringO 3 that is resisted against step 11 places in turbination cavity 12, joint body 1 the inner also is provided with the positioning step 13 that is used to locate externally connected pipe 4.
In order to realize from card, in turbination cavity 12, be provided with the elastic collar 2 that can change its internal diameter size under external force, elastic collar 2 is made by plastic materials, structure as shown in Figure 3 and Figure 4, elastic collar 2 comprises the supporting portion 21 that its outside can fit with turbination cavity 12 and some latches 22 of circumferentially being located at 21 inboards, supporting portion, latch 22 towards direction away from joint body 1 opening.Because externally connected pipe 4 generally is the cylindrical body of hollow, for latch 22 can be contacted with externally connected pipe 4 simultaneously, then latch 22 is arranged to the equidistant structure of its crown 21 medial axis to the supporting portion, guaranteed that each latch 22 can both contact with externally connected pipe 4, avoid latch 22 because of the damage that unbalance stress occurs, improved the working life of elastic collar 2.
As shown in Figure 3, offer opening 23 at the sidewall of elastic collar 2, when elastic collar 2 can make the change of elastic collar 2 internal diameter sizes reach bigger in the time spent of doing that is subjected to external force.The elastic collar 2 that internal diameter diminishes can conveniently be put in the joint body 1 from joint body 1 opening.
As shown in Figure 2, this self-clamping type pipe joint in use, the opening of externally connected pipe 4 from joint body 1 is inserted in the joint body 1, when touching elastic collar 2, externally connected pipe 4 continues to promote externally connected pipe 4, make externally connected pipe 4 pass elastic collar 2, and then pass the O RunddichtringO 3 that is resisted against on the step 11, finally reach positioning step 13 places and be resisted against on the positioning step 13.Because elastic collar 2 is subjected to the extruding of externally connected pipe 4 and externally connected pipe 4 is produced a package power, elastic collar 2 is along with externally connected pipe 4 outwards motion together when externally connected pipe 4 outwards spurs.In movement process, because being positioned at step 11 to the part of joint body 1 opening, joint body 1 is the turbination cavity 12 that radius diminishes gradually, so elastic collar 2 also is subjected to from the extruding force of turbination cavity 12 to it, make the internal diameter of elastic collar 2 diminish, cause the clamping force of 22 pairs of externally connected pipe 4 of latch tighter, under the effect of elastic collar 2 package powers, externally connected pipe 4 difficult drop-offs.
This self-clamping type pipe joint structure is simple, easy to operate when connecting, and does not need externally connected pipe 4 to be linked on this self-clamping type pipe joint by being threaded, and is time saving and energy saving.
Embodiment two
The structural principle of present embodiment is basic identical with embodiment one structural principle, different places are, as shown in Figure 5, elastic collar 2 comprises the card body 24 of some circumferential distributions and the connecting body 25 that is connected two adjacent card bodies 24, the outer side surface of card body 24 is the tapering that is complementary with turbination cavity 12, card body 24 inner circumferential offer latch 22, and connecting body 25 is made by elastic material, and card body 24 is made by metallic material.
This elastic collar 2 can be pushed down metal externally connected pipe 4 by stable connection and card.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as joint body 1, step 11, turbination cavity 12, positioning step 13, elastic collar 2, supporting portion 21, latch 22, opening 23, card body 24, connecting body 25, O RunddichtringO 3, externally connected pipe 4 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. self-clamping type pipe joint, comprise tubular joint body (1), be provided with step (11) in one end of described joint body (1), described joint body (1) is positioned at step (11) to the part of joint body (1) opening and is the turbination cavity (12) that radius diminishes gradually, it is characterized in that, be provided with the elastic collar (2) that can change its internal diameter size under external force in the described joint body (1), described elastic collar (2) is positioned at above-mentioned turbination cavity (12).
2. self-clamping type pipe joint according to claim 1, it is characterized in that, described elastic collar (2) comprises the supporting portion (21) that its outside can fit with above-mentioned turbination cavity (12) and circumferentially is located at the inboard latch (22) in described supporting portion (21), and described latch (22) is that the distance of crown (21) medial axis to the supporting portion of several and described latch (22) is equal.
3. self-clamping type pipe joint according to claim 2 is characterized in that, described latch (22) towards direction away from joint body (1) opening.
4. according to claim 1 or 2 or 3 described self-clamping type pipe joints, it is characterized in that described elastic collar (2) is made by plastic materials.
5. self-clamping type pipe joint according to claim 4 is characterized in that, the sidewall of described elastic collar (2) is provided with opening (23).
6. self-clamping type pipe joint according to claim 1, described elastic collar (2) comprise the card body (24) and the connecting body (25) that is connected two adjacent card bodies (24) of some circumferential distributions, and described connecting body (25) is made by elastic material.
7. self-clamping type pipe joint according to claim 6, the outer side surface of described card body (24) is the tapering that is complementary with above-mentioned turbination cavity (12), and described card body (24) inner circumferential offers latch (22).
8. self-clamping type pipe joint according to claim 7, described card body (24) is made by metallic material.
9. self-clamping type pipe joint according to claim 1 is characterized in that, is provided with in the described turbination cavity (12) to be resisted against the O RunddichtringO (3) that step (11) is located.
10. according to claim 1 or 2 or 3 or 6 or 7 or 8 or 9 described self-clamping type pipe joints, it is characterized in that the inner positioning step (13) that is used to locate externally connected pipe that also is provided with of described joint body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539930U CN201764158U (en) | 2010-07-12 | 2010-07-12 | Self-clamping type pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539930U CN201764158U (en) | 2010-07-12 | 2010-07-12 | Self-clamping type pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764158U true CN201764158U (en) | 2011-03-16 |
Family
ID=43716763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202539930U Expired - Fee Related CN201764158U (en) | 2010-07-12 | 2010-07-12 | Self-clamping type pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191721A (en) * | 2017-05-18 | 2017-09-22 | 潘汝锦 | Stereoplasm tube overcoat connecting parts |
| CN107355529A (en) * | 2017-06-28 | 2017-11-17 | 唐红荣 | Gearbox venting plug and its installation method |
| CN116336273A (en) * | 2023-04-19 | 2023-06-27 | 佛山市顺设发科技有限公司 | Metal tube connecting structure |
-
2010
- 2010-07-12 CN CN2010202539930U patent/CN201764158U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191721A (en) * | 2017-05-18 | 2017-09-22 | 潘汝锦 | Stereoplasm tube overcoat connecting parts |
| CN107355529A (en) * | 2017-06-28 | 2017-11-17 | 唐红荣 | Gearbox venting plug and its installation method |
| CN107355529B (en) * | 2017-06-28 | 2023-10-27 | 固合工程材料(江苏)有限公司 | Gearbox vent plug and installation method thereof |
| CN116336273A (en) * | 2023-04-19 | 2023-06-27 | 佛山市顺设发科技有限公司 | Metal tube connecting structure |
| CN116336273B (en) * | 2023-04-19 | 2023-09-19 | 佛山市顺设发科技有限公司 | Metal tube connecting structure |
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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: 20110316 Termination date: 20150712 |
|
| EXPY | Termination of patent right or utility model |