CN214744075U - Double-seal ring self-locking pipe joint structure - Google Patents
Double-seal ring self-locking pipe joint structure Download PDFInfo
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- CN214744075U CN214744075U CN202120615896.XU CN202120615896U CN214744075U CN 214744075 U CN214744075 U CN 214744075U CN 202120615896 U CN202120615896 U CN 202120615896U CN 214744075 U CN214744075 U CN 214744075U
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Abstract
A double-sealing ring self-locking pipe interface structure comprises a socket and a socket, wherein a plurality of annular grooves are formed in the inner wall of the socket; the outer wall of the socket is provided with a plurality of annular protrusions, and one annular protrusion is correspondingly embedded into one annular groove to form a self-locking structure, so that the socket is prevented from being separated from the socket, and the connection stability between the socket and the socket is ensured. In addition, still set up first seal groove, the second seal groove of installing the sealing washer on the outer wall of socket, play the effect of double containment stagnant water, guarantee the sealed stagnant water performance after the pipe connection. In summary, the utility model adopts the above interface structure to make the pipeline connection have strong integrity, can not be separated after connection, has the anti-pulling capability, and can be used for the construction of the pipe pulling and jacking; the pipeline connection tightness is good, and the water stopping performance is excellent; the pipelines are matched in a splicing mode, connection is convenient and fast, required connecting tools are simple, the cost of pipeline connection is effectively reduced, and the pipeline connecting device is suitable for wide popularization and application.
Description
Technical Field
The utility model relates to a pipe joint field, concretely relates to double seal ring auto-lock pipe connector interface structure.
Background
With the further development of urbanization and the gradual improvement of rural living conditions, the water supply and drainage requirements of public infrastructure and families are further improved, so that the construction work such as pipeline installation, maintenance and the like cannot be avoided.
At present, the pipeline repairing and laying mode of the trenchless split-plug method becomes the main mode of repairing and laying the urban drainage pipeline; the socket joint of HDPE and other plastic pipes is stronger than reinforced concrete pipe joint in tensile strength and water stopping performance, and is stronger than reinforced concrete pipe joint in corrosion resistance and smoothness, so that it becomes the replacement of traditional steel pipe and polyvinyl chloride drinking water pipe. At present, the conventional connection mode of HDPE pipeline interfaces in the market is that a socket is cut at one end of an HDPE solid-wall short pipe joint of a socket joint, a spigot is cut at the other end of the HDPE solid-wall short pipe joint, then water is sealed and stopped through a sealing ring, the HDPE solid-wall short pipe joint of the sealing ring socket joint is not strong in airtightness and does not have the anti-pulling capacity, and although the HDPE solid-wall short pipe joint can be used for trenchless repair, the HDPE solid-wall short pipe joint is easy to disjunction and cannot be used for roof pulling construction.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a double-seal ring self-locking pipe joint structure.
The utility model provides a technical scheme that its technical problem adopted is:
a dual seal ring self-locking tubing interface structure, comprising:
the self-locking connecting section is provided with a plurality of annular grooves which are sequentially arranged at intervals from right to left, the cross section of each annular groove is trapezoidal, and the left side wall of each annular groove is a first annular inclined plane;
socket, the socket includes the socket body, the socket position that the girdling formed on the outer wall of socket body one end, set up on the outer wall of socket position with first interior flat wall section complex first outer flat wall section, with auto-lock linkage segment complex cooperation linkage segment, with the outer flat wall section of second interior flat wall section complex second, be equipped with a plurality of annular archs of interval row from a left side to the right side in proper order on the cooperation linkage segment, annular bellied cross sectional shape is trapezoidal, annular bellied left side wall be with first annular inclined plane matched with second annular inclined plane, when auto-lock linkage segment and cooperation linkage segment cooperate, an annular arch corresponds and forms auto-lock structure in imbedding an annular recess.
The outer flat wall section of second is last to offer first seal groove, the second seal groove that is used for installing the sealing washer, first seal groove, second seal groove are from a left side to the right side interval arrangement in proper order and are set up, all be equipped with the sealing washer on first seal groove and the second seal groove.
The utility model discloses in, the right side wall of annular groove is the straight face of a first annular, the bellied right side wall of cyclic annular is the straight face of second annular with the straight face matched with of first annular.
The utility model discloses in, the circular cutting processing has the first annular inclined plane that is located socket position front end on the socket body, the diameter on first annular inclined plane increases from a left side to the right side gradually, the maximum diameter on first annular inclined plane is connected with first outer flat wall section annular.
The utility model discloses in, circular cutting processing has the second annular inclined plane that is located bellmouth position front end on the bellmouth body, the diameter on second annular inclined plane reduces from the right side to a left side gradually, the minimum diameter on second annular inclined plane is connected with first interior flat wall section annular.
In the present invention, the annular protrusion and the annular groove are in interference fit or clearance fit.
The utility model discloses in, be equipped with annular direction inclined plane transition between first interior flat wall section and the auto-lock linkage segment.
The utility model discloses in, the right side wall of annular groove is a fifth annular inclined plane, annular bellied right side wall is the sixth annular inclined plane with fifth annular inclined plane matched with.
The utility model has the advantages that: the utility model is provided with the annular bulge and the annular groove on the socket and the socket respectively, when the socket is inserted into the socket, the annular bulge is correspondingly embedded into the annular groove to form a self-locking structure, thereby preventing the socket from being separated from the socket and effectively ensuring the connection stability between the socket and the socket; meanwhile, a first sealing groove and a second sealing groove are further formed in the socket, the first sealing groove and the second sealing groove seal a gap between the socket and the socket through sealing rings, a double-sealing effect is formed, and water stopping performance after matching between the socket and the socket is effectively enhanced. In summary, the utility model adopts the above interface structure to make the pipeline connection have strong integrity, can not be separated after connection, has the anti-pulling capability, and can be used for the construction of the pipe pulling and jacking; the pipeline connection tightness is good, and the water stopping performance is excellent; the pipelines are matched in a splicing mode, connection is convenient and fast, required connecting tools are simple, the cost of pipeline connection is effectively reduced, and the pipeline connecting device is suitable for wide popularization and application.
Drawings
The invention will be further explained with reference to the drawings and the embodiments below:
FIG. 1 is an exploded view of a socket and a socket in example 1;
FIG. 2 is an enlarged view of FIG. 1, pointing at I;
FIG. 3 is a schematic view showing the socket and socket combination of embodiment 1;
FIG. 4 is a schematic view of a socket according to embodiment 2;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
Example 1
Referring to fig. 1 to 3, a dual seal ring self-locking pipe interface structure includes: the socket comprises a socket 1, wherein the socket 1 comprises a socket pipe body 11 and a socket position 12 formed by circularly cutting the inner wall of one end of the socket pipe body 11, a first inner flat wall section 13, a self-locking connecting section 14 and a second inner flat wall section 15 are sequentially arranged on the inner wall of the socket position 12 from right to left, a plurality of annular grooves 2 sequentially arranged from right to left at intervals are arranged on the self-locking connecting section 14, and the left side wall of each annular groove 2 is a first annular inclined plane 21 so that the annular grooves 2 are matched with the annular protrusions 4;
the socket 3 comprises a socket body 31 and a socket position 32 formed by cutting the outer wall of one end of the socket body 31 in a circular manner, the outer wall of the socket position 32 is provided with a first outer flat wall section 33 matched with the first inner flat wall section 13, a matched connecting section 34 matched with the self-locking connecting section 14 and a second outer flat wall section 35 matched with the second inner flat wall section 15, the matched connecting section 34 is provided with a plurality of annular bulges 4 sequentially arranged from left to right at intervals, and the left side wall of each annular bulge 4 is a second annular inclined surface 41 matched with the first annular inclined surface 21 so as to ensure the matching quality between the annular groove 2 and the annular bulge 4; when the self-locking connecting section 14 is matched with the matching connecting section 34, one annular protrusion 4 is correspondingly embedded into one annular groove 2 to form a self-locking structure, so that the socket 3 is prevented from being separated from the socket 1.
In addition, set up first seal groove 5, the second seal groove 6 of interval arrangement in proper order from a left side to the right side on the second outer flat wall section 35, all be equipped with the sealing washer on first seal groove 5 and the second seal groove 6 to in first outer flat wall section 33 and the cooperation back of first inner flat wall section 13, through the sealing washer extrusion first inner flat wall section 13 on first seal groove 5 and the second seal groove 6 and form double-seal effect, effectively strengthen the sealed stagnant water performance between bellmouth 1 and the socket 3, avoid inside water infiltration to the tubular product, the sealing washer does not show in the drawing.
In this embodiment, the right sidewall of the annular groove 2 is a first annular straight surface 22, and the right sidewall of the annular protrusion 4 is a second annular straight surface 42 matched with the first annular straight surface 22, so that the overall structural stability of the annular protrusion 4 can be improved; meanwhile, when the socket 3 moves in the direction away from the socket 1, the first annular straight surface 22 and the second annular straight surface 42 form a limiting structure, so that the annular protrusion 4 is difficult to exit the annular groove 2, and the quality of self-locking connection between the annular groove 2 and the annular protrusion 4 is ensured. In addition, the bottom surface of the annular groove 2 is a third annular straight surface 24, and two ends of the third annular straight surface 24 are respectively connected with the first annular straight surface 22 and the first annular inclined surface 21 to form the annular groove 2 with a trapezoidal cross section, so as to further enhance the structural stability of the annular groove 2; similarly, the end surface of the annular protrusion 4 away from the mating connection section 34 is a fourth annular straight surface 44, and two ends of the fourth annular straight surface 44 are respectively connected to the second annular straight surface 42 and the second annular inclined surface 41 to form the annular protrusion 4 with a trapezoidal cross section, so that the annular protrusion 4 can be engaged with the annular protrusion 4, and the self-locking quality is ensured.
In addition, the angle a between the second annular inclined surface 41 and the fourth annular straight surface 44 is between 110 ° and 130 °, and is most preferably 127 °, so that the structure can ensure the structural stability of the annular protrusion 4, and at the same time, the annular protrusion 4 can be rapidly matched with the annular groove 2.
In a preferred embodiment, in order to facilitate the insertion of the socket 3 into the socket 1, a first annular inclined surface 31a is cut on the socket tube 31 at the front end of the socket position 32, the diameter of the first annular inclined surface 31a gradually increases from left to right, and the maximum diameter of the first annular inclined surface 31a is annularly connected with the first outer flat wall section 33, so that the insertion of the socket 3 into the socket 1 is facilitated, and the assembly efficiency is improved.
In a preferred embodiment, a second annular inclined surface 11a is cut on the socket body 11 at the front end of the socket 12, the diameter of the second annular inclined surface 11a gradually decreases from right to left, and the minimum diameter of the second annular inclined surface 11a is annularly connected with the first inner flat wall section 13, so that the insertion of the socket 3 into the socket 1 is facilitated, and the assembly efficiency is improved.
As a preferred embodiment, in order to avoid damage to the pipe caused by axial movement of the pipe or irregular movement in other directions, stretching or shortening of the pipe due to changes in creep property, out-of-roundness, ring stiffness, water and ambient temperature of the pipe after the pipe is buried underground; when the socket 3 is inserted and assembled into the socket 1, a first reserved gap L1 is reserved between the end surface of the socket pipe body 31 and the end surface of the socket 12; similarly, when the spigot 3 is inserted and assembled into the socket 1, a second clearance L2 is left between the end surface of the spigot site 32 and the end surface of the socket pipe 11.
In a preferred embodiment, the end surface of the socket pipe 31 is a third annular inclined surface 31b, the diameter of the third annular inclined surface 31b gradually increases from left to right, the minimum diameter of the third annular inclined surface 31b is annularly connected with the minimum diameter of the first annular inclined surface 31a, so that the socket 3 can be conveniently inserted into the socket 1, and the size of the first reserved gap L1 gradually increases from the inner wall of the socket pipe 31 along the direction of the outer wall of the socket pipe 31, so that the first reserved gap L1 has a space enough for the pipe to move irregularly, stretch or shorten, and the fitting stability between the socket pipe 11 and the socket pipe 31 is ensured.
In a preferred embodiment, the end surface of the socket pipe 11 is a fourth annular inclined surface 11b, the diameter of the fourth annular inclined surface 11b gradually decreases from right to left, the minimum diameter of the fourth annular inclined surface 11b is annularly connected with the maximum diameter of the second annular inclined surface 11a, so that the insertion of the spigot 3 into the socket 1 is facilitated, and the size of the second reserved gap L2 gradually increases from the outer wall of the socket pipe 11 along the direction of the inner wall of the socket pipe 11, so that the second reserved gap L2 has a space enough for the pipe to irregularly move, stretch or shorten, and the fitting stability between the spigot pipe 31 and the socket pipe 11 is ensured.
As a preferred embodiment, the annular protrusion 4 and the annular groove 2 may be in an interference fit, so as to enhance the self-locking effect between the annular protrusion 4 and the buffer groove; of course, the annular protrusion 4 may be in clearance fit so as to be inserted into the annular groove 2 more quickly, and at the same time, a moving space is left between the socket pipe body 31 and the socket pipe body 11, so as to prevent the pipe from being damaged due to axial movement or irregular movement in other directions, stretching or shortening of the pipe caused by changes in creep property, out-of-roundness, ring stiffness, water and ambient temperature.
In a preferred embodiment, an annular guiding inclined surface 7 is arranged between the first inner flat wall section 13 and the self-locking connecting section 14, so that the annular protrusion 4 can be quickly transited to the self-locking connecting section 14 to be matched with the annular groove 2 during the process of inserting the socket 3 into the socket 1.
Example 2
As shown in fig. 4, the present embodiment has substantially the same structure as the embodiment, except that: in this embodiment, the right side wall of the annular groove 2 is a fifth annular inclined surface, and the right side wall of the annular protrusion 4 is a sixth annular inclined surface 43 matched with the fifth annular inclined surface. When the socket 3 moves towards the direction of inserting into the socket 1, under the action of the first annular inclined surface 21 and the fifth annular inclined surface, the annular protrusion 4 can generate larger deformation along the direction of the tail end of the socket position 32, so that the annular protrusion can be inserted into the annular groove 2 more conveniently, and the assembly efficiency between the socket 3 and the socket 1 is improved; when the socket 3 moves in the direction away from the socket 1, the annular protrusion 4 is hooked on the fifth annular inclined surface through the sixth annular inclined surface 43, so that the annular protrusion 4 is difficult to withdraw from the annular groove 2, and the quality of self-locking connection between the annular groove 2 and the annular protrusion 4 is ensured.
In addition, the two ends of the third annular straight surface 24 are respectively connected with the fifth annular inclined surface and the first annular inclined surface 21 to form an annular groove 2 with a trapezoidal cross section, so that the annular groove 2 can be better locked with the annular protrusion 4; similarly, the two ends of the fourth annular straight surface 44 are respectively connected with the sixth annular inclined surface 43 and the second annular inclined surface 41 to form the annular protrusion 4 with a trapezoidal cross section, so as to further enhance the structural stability of the annular protrusion 4.
In the present embodiment, the angle B between the sixth annular inclined surface 43 and the fourth annular straight surface 44 is between 80 ° and 89 °, and is most preferably 84 °, so that the annular protrusion 4 can be fitted with the annular groove 2 more quickly while the structural stability of the annular protrusion 4 is ensured.
The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.
Claims (7)
1. A dual seal ring self-locking tubing interface structure, comprising:
the socket (1) comprises a socket pipe body (11) and a socket position (12) formed by girdling on the inner wall of one end of the socket pipe body (11), wherein a first inner flat wall section (13), a self-locking connecting section (14) and a second inner flat wall section (15) are sequentially arranged on the inner wall of the socket position (12) from right to left, a plurality of annular grooves (2) are sequentially arranged on the self-locking connecting section (14) from right to left at intervals, the cross section of each annular groove (2) is trapezoidal, and the left side wall of each annular groove (2) is a first annular inclined plane (21);
the socket (3), the socket (3) comprises a socket tube body (31) and a socket position (32) formed by circular cutting on the outer wall of one end of the socket tube body (31), the outer wall of the socket position (32) is provided with a first outer flat wall section (33) matched with the first inner flat wall section (13), a matched connecting section (34) matched with the self-locking connecting section (14) and a second outer flat wall section (35) matched with the second inner flat wall section (15), a plurality of annular bulges (4) are arranged on the matching connecting section (34) at intervals from left to right, the section of the annular bulge (4) is trapezoidal, the left side wall of the annular bulge (4) is a second annular inclined surface (41) matched with the first annular inclined surface (21), when the self-locking connecting section (14) is matched with the matching connecting section (34), one annular protrusion (4) is correspondingly embedded into one annular groove (2) to form a self-locking structure;
offer first seal groove (5), second seal groove (6) that are used for installing the sealing washer on second outer flat wall section (35), first seal groove (5), second seal groove (6) are arranged from a left side to the right side interval in proper order and are set up, all be equipped with the sealing washer on first seal groove (5) and second seal groove (6).
2. The dual seal ring self-locking tubing interface of claim 1, wherein: the right side wall of the annular groove (2) is a first annular straight surface (22), and the right side wall of the annular bulge (4) is a second annular straight surface (42) matched with the first annular straight surface (22).
3. The dual seal ring self-locking tubing interface of claim 1, wherein: the socket pipe body (31) is provided with a first annular inclined surface (31 a) which is arranged at the front end of the socket position (32) in a cutting mode, the diameter of the first annular inclined surface (31 a) is gradually increased from left to right, and the maximum diameter of the first annular inclined surface (31 a) is connected with the first outer flat wall section (33) in an annular mode.
4. The dual seal ring self-locking tubing interface of claim 1, wherein: a second annular inclined surface (11 a) located at the front end of the socket position (12) is machined on the socket pipe body (11) in a cutting mode, the diameter of the second annular inclined surface (11 a) is gradually reduced from right to left, and the minimum diameter of the second annular inclined surface (11 a) is connected with the first inner flat wall section (13) in an annular mode.
5. The dual seal ring self-locking tubing interface of claim 1, wherein: the annular protrusion (4) and the annular groove (2) are in interference fit or clearance fit.
6. The dual seal ring self-locking tubing interface of claim 1, wherein: an annular guide inclined surface (7) is arranged between the first inner flat wall section (13) and the self-locking connecting section (14) for transition.
7. The dual seal ring self-locking tubing interface of claim 1, wherein: the right side wall of the annular groove (2) is a fifth annular inclined surface, and the right side wall of the annular protrusion (4) is a sixth annular inclined surface (43) matched with the fifth annular inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120615896.XU CN214744075U (en) | 2021-03-25 | 2021-03-25 | Double-seal ring self-locking pipe joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120615896.XU CN214744075U (en) | 2021-03-25 | 2021-03-25 | Double-seal ring self-locking pipe joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214744075U true CN214744075U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120615896.XU Active CN214744075U (en) | 2021-03-25 | 2021-03-25 | Double-seal ring self-locking pipe joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214744075U (en) |
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2021
- 2021-03-25 CN CN202120615896.XU patent/CN214744075U/en active Active
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