CN212107315U - Flexible sealing self-locking socket polyvinyl chloride solid wall pipe - Google Patents
Flexible sealing self-locking socket polyvinyl chloride solid wall pipe Download PDFInfo
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- CN212107315U CN212107315U CN202020691397.4U CN202020691397U CN212107315U CN 212107315 U CN212107315 U CN 212107315U CN 202020691397 U CN202020691397 U CN 202020691397U CN 212107315 U CN212107315 U CN 212107315U
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Abstract
The utility model provides a flexible sealing self-locking socket polyvinyl chloride solid-wall pipe, which comprises a pipe main body, and a socket part and a spigot part which are respectively arranged at two ends of the pipe main body, wherein the socket part and the spigot part are integrally formed with the pipe main body; a plurality of first annular bulges are arranged on the outer peripheral surface of the socket part, a plurality of first annular clamping grooves are correspondingly arranged on the inner peripheral surface of the socket part, and the first annular clamping grooves are matched with the first annular bulges; the outer peripheral surface of the socket part is also provided with a second annular clamping groove, the inner peripheral surface of the socket part is correspondingly provided with a third annular clamping groove, a C-shaped clamping ring is sleeved in the second annular clamping groove, the outer side of the C-shaped clamping ring can enter the third annular clamping groove after the socket part is inserted into the socket part, and the inner side of the C-shaped clamping ring is left in the second annular clamping groove so as to realize clamping; the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe is reliable in connection and high in tensile strength at the connection position.
Description
Technical Field
The utility model relates to the technical field of pipelines, in particular to flexible sealing auto-lock socket joint polyvinyl chloride solid wall pipe.
Background
In recent years, in the construction of urban underground piping works, trenchless pipe jacking construction methods have been increasingly used, which have less social disturbance. The pipeline suitable for the trenchless pipe jacking construction method is generally a self-locking socket type plastic pipeline, for example, a self-locking socket type polyvinyl chloride solid wall pipe, the self-locking socket type plastic pipeline is adopted for construction, the welding time can be saved when the pipeline is connected, the pipeline can be installed with water, the required installation space is small, and the connection speed is high.
The existing self-locking socket joint polyvinyl chloride solid wall pipe is generally characterized in that an annular bulge is arranged on a socket part of a pipeline, a corresponding annular clamping groove is formed in a socket part, and after the socket part is inserted into the socket part, the annular bulge is clamped into the annular clamping groove to realize self-locking, so that two connected pipes are prevented from being separated. Because the axial connection is realized only by the clamping action of the annular bulge and the annular clamping groove, the tensile capacity of the joint is poor, and the joint is easy to be pulled and disjointed under the conditions of expansion with heat and contraction with cold, uneven geological settlement and the like.
It is seen that the prior art is susceptible to improvements and enhancements.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, an object of the utility model is to provide a flexible seal auto-lock socket joint polyvinyl chloride solid wall pipe aims at solving current auto-lock socket joint polyvinyl chloride solid wall pipe and leads to the poor problem of tensile ability of junction because only rely on the joint effect of cyclic annular arch and cyclic annular draw-in groove to realize axial connection.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a flexible sealing self-locking socket polyvinyl chloride solid-wall pipe comprises a pipe main body, and a socket part and a spigot part which are respectively arranged at two ends of the pipe main body, wherein the socket part and the spigot part are integrally formed with the pipe main body; a plurality of first annular bulges are arranged on the outer peripheral surface of the socket part, a plurality of first annular clamping grooves are correspondingly arranged on the inner peripheral surface of the socket part, and the first annular clamping grooves are matched with the first annular bulges;
the socket is characterized in that a second annular clamping groove is further formed in the outer peripheral face of the socket portion, a third annular clamping groove is correspondingly formed in the inner peripheral face of the socket portion, a C-shaped clamping ring is sleeved in the second annular clamping groove, the outer side of the C-shaped clamping ring can enter the third annular clamping groove after the socket portion is inserted into the socket portion, and the inner side of the C-shaped clamping ring is reserved in the second annular clamping groove so that clamping can be achieved.
In the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, an annular mounting groove is formed in the inner circumferential surface of the socket part, the annular mounting groove is formed in the root of the socket part, and a sealing ring is arranged in the annular mounting groove.
In the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, a second annular bulge is arranged on the outer peripheral surface of the socket part corresponding to the position of the sealing ring, and the second annular bulge is used for extruding the sealing ring.
In the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, a sealing cushion layer is arranged on the end face, facing the socket part, of the pipe body.
In the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, one side of the outer peripheral surface of the C-shaped snap ring, which faces away from the root of the socket part, is provided with a first guide part, and the diameter of the first guide part is gradually reduced along the direction which faces away from the root of the socket part.
In the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, a second guide part is arranged on the inner circumferential surface of the tail end of the socket part, and the diameter of the second guide part is gradually reduced along the direction back to the tail end face of the socket part.
In the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe, the first guide part and the second guide part are both a rounding part or a chamfering part.
In the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, the first annular bulge is uniformly provided with a plurality of force-discharging grooves along the circumferential direction, and the first annular bulge is divided into a plurality of arc-shaped bulges arranged at intervals by the force-discharging grooves.
In the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe, the first annular bulge is provided with a first surface facing the root part of the socket part and a second surface facing away from the root part of the socket part; on the cross section of the first annular bulge, a first included angle is formed between the first surface and the axial direction of the root part of the socket part pointing to the socket part, a second included angle is formed between the second surface and the axial direction of the root part of the socket part pointing to the socket part, the first included angle is not more than 90 degrees, and the second included angle is less than 90 degrees.
Further, the second included angle is less than 60 °.
Has the advantages that:
the utility model provides a pair of flexible sealing auto-lock socket joint polyvinyl chloride solid wall pipe through the joint effect of first annular bulge and first annular draw-in groove, makes the junction between the polyvinyl chloride solid wall pipe realize axial connection and have certain tensile ability, can further improve the tensile ability of junction through the joint effect of C shape snap ring simultaneously, makes difficult the tension disjointing between the polyvinyl chloride solid wall pipe.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of flexible sealing auto-lock socket joint polyvinyl chloride solid wall pipe.
Fig. 2 is the cross-sectional view of the socket and spigot parts separated state in the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe provided by the utility model.
Fig. 3 is the cross-sectional view of the connection state of the socket part and the socket part in the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe provided by the utility model.
Fig. 4 is the schematic structural diagram of the C-shaped snap ring in the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe provided by the utility model.
Fig. 5 is a cross-sectional view of a first annular protrusion in the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe provided by the utility model.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The following disclosure provides embodiments or examples for implementing different configurations of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1-3, the flexible sealing self-locking socket polyvinyl chloride solid-wall pipe provided by the present invention comprises a pipe main body 1, and a socket portion 2 and a spigot portion 3 respectively disposed at two ends of the pipe main body 1, wherein the socket portion 2 and the spigot portion 3 are integrally formed with the pipe main body 1 (both made of polyvinyl chloride); a plurality of first annular bulges 4 are arranged on the outer peripheral surface of the socket part 3, a plurality of first annular clamping grooves 5 are correspondingly arranged on the inner peripheral surface of the socket part 2, and the first annular clamping grooves 5 are matched with the first annular bulges 4;
a second annular clamping groove 6 is further arranged on the outer peripheral surface of the spigot portion 3, a third annular clamping groove 7 is correspondingly arranged on the inner peripheral surface of the socket portion 2, a C-shaped snap ring 8 is sleeved in the second annular clamping groove 6, and the C-shaped snap ring 8 can enter the third annular clamping groove 7 from the outer side of the spigot portion 3 inserted into the socket portion 2 (here, the spigot portion 3 of one flexible sealing self-locking spigot-and-socket polyvinyl chloride solid wall pipe is inserted into the socket portion 2 of another flexible sealing self-locking spigot-and-socket polyvinyl chloride solid wall pipe) and the inner side of the third annular clamping groove is left in the second annular clamping groove 6 so as to realize clamping (as shown in fig..
During the use, the socket part 3 of one flexible sealing self-locking socket polyvinyl chloride solid-wall pipe is inserted into the socket part 2 of the other flexible sealing self-locking socket polyvinyl chloride solid-wall pipe, in the insertion process, the C-shaped snap ring 8 is pressed, the C-shaped snap ring 8 is contracted into the second annular clamping groove 6, and therefore the situation that the insertion is blocked smoothly is avoided, after the socket is inserted in place, the first annular bulge 4 enters the first annular clamping groove 5, the third annular clamping groove 7 is right opposite to the C-shaped snap ring 8, the C-shaped snap ring 8 is released to automatically recover the original state, the outer side part of the recovered C-shaped snap ring 8 enters the third annular clamping groove 7, and the inner side part of the recovered C-shaped snap ring 8 is remained in the second annular clamping groove 6, as shown in fig. 3. Because the joint effect of first annular arch and first cyclic annular draw-in groove makes the junction between the solid wall pipe of polyvinyl chloride realize axial connection and have certain tensile ability, can further improve the tensile ability of junction through the joint effect of C shape snap ring simultaneously, makes difficult the tension disjointing between the solid wall pipe of polyvinyl chloride.
Further, referring to fig. 2, an annular mounting groove 9 is provided on an inner circumferential surface of the socket portion 2, the annular mounting groove 9 is provided at a root of the socket portion 2, and a seal ring 10 is provided in the annular mounting groove. The seal ring 10 is used for sealing a gap between the inner peripheral surface of the socket part 2 and the outer peripheral surface of the socket part 3 to avoid leakage; wherein, the sealing ring 10 is arranged at the root of the socket part 2, which can prevent the liquid in the pipeline from flowing into the first annular bulge 4 and the C-shaped clamping ring 8 to reduce friction and corrode the C-shaped clamping ring 8.
In some preferred embodiments, see fig. 2, a second annular protrusion 11 is provided on the outer circumferential surface of the socket portion 3 at a position corresponding to the seal ring 9, and the second annular protrusion 11 is used to press the seal ring 9. When plugged into place, the second annular protrusion 11 presses the sealing ring 9, as shown in fig. 3, which further improves the sealing. The circumferential surface of the second annular protrusion 11 may be an arc shape or an "m" shape, but is not limited thereto.
In order to further improve the sealing property, a gasket 12 may be provided on an end surface of the pipe body 1 facing the socket portion 3. When the flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe is inserted in place, the end face of the socket part 2 of one flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe extrudes the sealing cushion layer 12 of the other flexible sealing self-locking socket joint polyvinyl chloride solid-wall pipe, so that a gap at the end face is sealed, and liquid is prevented from entering and exiting from the gap.
In some embodiments, see fig. 2 and 4, the side of the outer peripheral surface of the C-shaped snap ring 8 facing away from the root of the socket 3 (the root refers to the end connected to the pipe body 1) is provided with a first guide portion 8.1, and the diameter of the first guide portion 8.1 is gradually reduced in the direction facing away from the root of the socket 3. In the process of inserting the socket part 3 into the socket part 2, the end part of the socket part 2 can extrude the first guide part 8.1 of the C-shaped clamp ring 8, so that the C-shaped clamp ring 8 can be automatically contracted, the C-shaped clamp ring 8 is not required to be pressed by hands or tools, and the convenience of connection operation is further improved.
Further, a second guide portion 13 may be provided on an inner peripheral surface of the end of the socket portion 2 (i.e., the end facing away from the pipe main body 1 thereof), and the diameter of the second guide portion 13 may be gradually reduced in a direction facing away from the end surface of the end of the socket portion 2, as shown in fig. 2. The provision of the second guide portion 13 makes it easier to insert the socket portion 3 into the socket portion 2, and the second guide portion 13 presses the first guide portion 8.1 of the C-shaped snap ring 8, thereby enabling the C-shaped snap ring 8 to be compressed more smoothly.
The first guide portion 8.1 and the second guide portion 13 are rounded or chamfered, but not limited thereto. Fig. 1-4 each show the case where the first guide portion 8.1 and the second guide portion 13 are chamfered.
In some embodiments, referring to fig. 1, the first annular protrusion 4 is uniformly provided with a plurality of force-releasing grooves 13 along the circumferential direction, and the force-releasing grooves 13 divide the first annular protrusion 4 into a plurality of arc-shaped protrusions arranged at intervals. In the process of inserting the socket portion 3 into the socket portion 2, the first annular protrusion 4 is squeezed, and at this time, the force-releasing groove 13 provides a space for the first annular protrusion 4 to deform, so that the process of inserting the socket portion 3 into the socket portion 2 is less resistant and smoother.
Further, as seen in fig. 5, the first annular projection 4 has a first face 4.1 directed towards the root of the socket 3 and a second face 4.2 directed away from the root of the socket 3; on the cross section of first annular protrusion 4, first face 4.1 becomes first contained angle b with the axial of 3 directional socket portion roots of socket portion (i.e. the direction of the directional socket portion root of socket portion axis), and second face 4.2 becomes second contained angle a with the axial of 3 directional socket portion roots of socket portion, and wherein, first contained angle b is not more than 90, and second contained angle a is less than 90. In the process that socket portion 3 inserted socket portion 2, second face 4.2 plays the guide effect, makes the insertion process more smooth and easy, and when pegging graft the back that targets in place, first face 4.1 offsets with the wall that first ring groove 5 corresponds to provide the confining force of axial tension. In the present embodiment, the cross section of the first annular protrusion 4 may be triangular or trapezoidal (see fig. 5).
Furthermore, the second included angle a is smaller than 60 degrees, and because the static friction coefficient between the polyvinyl chloride materials is not larger than 0.5, when force acts on the second surface 4.2 along the axial direction, if the second included angle a is larger than 63 degrees (corresponding to the static friction coefficient being 0.5), the second included angle a can be self-locked, so that the first annular protrusion 4 is easily damaged in the process of inserting the socket part 3 into the socket part 2, and when the second included angle a is smaller than 60 degrees, the first annular protrusion 4 can be prevented from being damaged, so that the inserting process is smoother.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and the embodiments are substantially the same as the present invention.
Claims (10)
1. A flexible sealing self-locking socket polyvinyl chloride solid-wall pipe comprises a pipe main body, and a socket part and a spigot part which are respectively arranged at two ends of the pipe main body, wherein the socket part and the spigot part are integrally formed with the pipe main body; a plurality of first annular bulges are arranged on the outer peripheral surface of the socket part, a plurality of first annular clamping grooves are correspondingly arranged on the inner peripheral surface of the socket part, and the first annular clamping grooves are matched with the first annular bulges; it is characterized in that the preparation method is characterized in that,
the socket is characterized in that a second annular clamping groove is further formed in the outer peripheral face of the socket portion, a third annular clamping groove is correspondingly formed in the inner peripheral face of the socket portion, a C-shaped clamping ring is sleeved in the second annular clamping groove, the outer side of the C-shaped clamping ring can enter the third annular clamping groove after the socket portion is inserted into the socket portion, and the inner side of the C-shaped clamping ring is reserved in the second annular clamping groove so that clamping can be achieved.
2. The flexible sealing self-locking socket polyvinyl chloride solid-wall pipe according to claim 1, wherein an annular mounting groove is provided on the inner circumferential surface of the socket part, the annular mounting groove is provided at the root of the socket part, and a sealing ring is provided in the annular mounting groove.
3. The flexible sealing self-locking socket polyvinyl chloride solid-wall pipe according to claim 2, wherein a second annular protrusion is arranged on the outer circumferential surface of the socket portion at a position corresponding to the sealing ring, and the second annular protrusion is used for extruding the sealing ring.
4. The flexible sealing self-locking socket polyvinyl chloride solid-wall pipe according to claim 1, wherein a sealing cushion layer is arranged on the end face of the pipe body facing the spigot portion.
5. The flexible sealing self-locking socket polyvinyl chloride solid-wall pipe according to claim 1, wherein a first guide part is arranged on one side of the outer peripheral surface of the C-shaped snap ring, which faces away from the root of the socket part, and the diameter of the first guide part is gradually reduced along the direction away from the root of the socket part.
6. The flexible sealed self-locking socket polyvinyl chloride solid wall pipe according to claim 5, wherein a second guide part is provided on an inner peripheral surface of a distal end of the socket part, and a diameter of the second guide part is gradually reduced in a direction away from an end surface of the distal end of the socket part.
7. The flexible sealed self-locking socket polyvinyl chloride solid wall pipe of claim 6, wherein the first guide portion and the second guide portion are both rounded or chamfered portions.
8. The flexible sealing self-locking socket polyvinyl chloride solid-wall pipe according to claim 1, wherein the first annular protrusion is uniformly provided with a plurality of force-discharging grooves along the circumferential direction, and the force-discharging grooves divide the first annular protrusion into a plurality of arc-shaped protrusions arranged at intervals.
9. The flexible sealed self-locking socket polyvinyl chloride solid wall pipe of claim 1, wherein said first annular projection has a first face facing toward said socket root and a second face facing away from said socket root; on the cross section of the first annular bulge, a first included angle is formed between the first surface and the axial direction of the root part of the socket part pointing to the socket part, a second included angle is formed between the second surface and the axial direction of the root part of the socket part pointing to the socket part, the first included angle is not more than 90 degrees, and the second included angle is less than 90 degrees.
10. The flexible sealed self-locking socket polyvinyl chloride solid wall pipe of claim 9 wherein said second included angle is less than 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020691397.4U CN212107315U (en) | 2020-04-29 | 2020-04-29 | Flexible sealing self-locking socket polyvinyl chloride solid wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020691397.4U CN212107315U (en) | 2020-04-29 | 2020-04-29 | Flexible sealing self-locking socket polyvinyl chloride solid wall pipe |
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| CN212107315U true CN212107315U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020691397.4U Active CN212107315U (en) | 2020-04-29 | 2020-04-29 | Flexible sealing self-locking socket polyvinyl chloride solid wall pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576844A (en) * | 2020-12-18 | 2021-03-30 | 深圳市森威尔科技开发股份有限公司 | Hydraulic power transmission and distribution center convenient for adjusting water outlet rate |
| CN114094375A (en) * | 2021-10-29 | 2022-02-25 | 安费诺科技(珠海)有限公司 | Connector and mounting method |
-
2020
- 2020-04-29 CN CN202020691397.4U patent/CN212107315U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576844A (en) * | 2020-12-18 | 2021-03-30 | 深圳市森威尔科技开发股份有限公司 | Hydraulic power transmission and distribution center convenient for adjusting water outlet rate |
| CN114094375A (en) * | 2021-10-29 | 2022-02-25 | 安费诺科技(珠海)有限公司 | Connector and mounting method |
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