Socket pipe connector sealing structure
By adopting a combined structure of sealing ring and sealing sleeve in the socket interface and combining the expansion mechanism of the extrusion ring, the problems of unstable sealing effect and discontinuous sealing performance in traditional sealing materials and structures are solved, achieving more efficient sealing performance and more reliable connections.
Patent Information
- Application Number
- CN202421719507.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The sealing materials and structures of traditional socket tube interfaces have unstable sealing effects during use, making it difficult to ensure the continuity and balance of sealing performance at the connection.
A structure including a sealing ring and a sealing sleeve is adopted. The upper end surface of the sealing ring is equipped with a slot to achieve a closed connection between the small head end and the large head end. The sealing sleeve is wrapped around the outer wall of the small head end and expands it through an extrusion ring to enhance friction and ensure the continuity and balance of sealing performance.
Through the combined structure of the sealing ring and the sealing sleeve, a sealed connection between the contact end face of the small head end and the large head end is achieved, and the reliability of the sealing connection is improved through the expansion of the extrusion ring, ensuring the continuity and balance of the sealing performance at the connection.
Smart Images
Figure CN222760455U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of pipe sealing, and in particular to a bell-and-spigot pipe interface sealing structure. Background Art
[0002] Socket and spigot pipe refers to the process of connecting pipes or pipe fittings, or bifurcating pipes, by making the two ends of the pipe into a socket and a spigot (the spigot generally does not need to be specially made), inserting the spigot into the socket, and then sealing the joint. And according to the process requirements, the pipe can be made with a socket at both ends (double socket), the pipe fittings can be made into multiple sockets, or made into several sockets or several spigots (such as double socket and single spigot). Socket and spigot pipe is a commonly used pipe connection method in the field of construction materials, and the quality of its interface sealing performance directly affects the normal operation of the pipeline system.
[0003] At present, the socket and spigot pipe joints are usually filled and sealed with rubber rings, asbestos cement, blue lead and other materials to ensure that the joints are leak-proof. However, these traditional sealing materials and structures have certain problems during use, such as unstable sealing effects, and the filling and sealing form is difficult to ensure the continuity and balance of the sealing performance of the joints. Therefore, a socket and spigot pipe joint sealing structure is proposed to address the above problems. Utility Model Content
[0004] In view of the shortcomings of the prior art, the present application provides a bell-and-spigot pipe interface sealing structure, which overcomes the shortcomings of the prior art and aims to solve the problem that traditional sealing materials and structures have unstable sealing effects during use and it is difficult to ensure the continuity and balance of the sealing performance at the connection.
[0005] To achieve the above objectives, this application provides the following technical solutions:
[0006] A bell-and-spigot pipe joint sealing structure comprises a pipe body and a sealing structure, wherein the two ends of the pipe body are a large end and a small end respectively, wherein the small end of one pipe body is inserted into the large end of the other pipe body, the sealing structure comprises a sealing ring and a sealing sleeve, the upper end surface of the sealing ring is provided with a slot, the small end is inserted into the slot, the sealing sleeve is wrapped around the outer wall of the small end and the upper end surface thereof is provided with an extrusion groove, an extrusion ring is inserted in the extrusion groove, and the extrusion ring is fixedly connected to the large end by a fixing structure.
[0007] By adopting the above technical scheme, a sealing ring can be used to achieve a sealed connection between the contact end faces of the small head end and the large head end, a sealing sleeve can be used to achieve a sealed connection between the outer wall of the small head end and the inner wall of the large head end, and the above structural form can achieve the continuity and balance of the sealing performance at the connection. In particular, after the sealing sleeve is installed, the sealing sleeve is squeezed and expanded by inserting an extrusion ring into it, so that the sealing sleeve can be in close contact with the small head end and the large head end and produce increased friction, thereby improving the reliability of the sealing connection.
[0008] As a preferred technical solution of the present application, the slot width of the slot is consistent with the thickness of the tube body of the slot, and the slot body size of the slot is consistent with the tube body size of the small head end.
[0009] By adopting the above technical solution, the small head end can be tightly inserted into the slot, which can effectively prevent water from seeping out along the contact gap between the small head end and the slot.
[0010] As a preferred technical solution of the present application, a guide groove is provided at the bottom of the sealing ring, and when the sealing ring is arranged, the guide groove always faces the direction of the water flow.
[0011] By adopting the above technical solution, the diversion slope can reduce the impact of water flow on the protruding sealing ring, thereby protecting the sealing ring and maintaining the airtightness of the connection between the sealing ring and the small head end and the large head end.
[0012] As a preferred technical solution of the present application, the bottom of the slot is fixedly provided with a plurality of outwardly convex bottom sealing convex patterns, and the slot walls on both sides of the slot are fixedly provided with a plurality of outwardly convex side sealing convex patterns.
[0013] By adopting the above technical solution, a plurality of annular water-blocking structures can be formed by the bottom closed convex patterns and the side closed convex patterns, thereby improving the sealing performance of the connection.
[0014] As a preferred technical solution of the present application, a plurality of equidistantly arranged outer water-blocking rings are fixedly provided on the outer wall of the sealing sleeve from top to bottom, and a plurality of equidistantly arranged inner water-blocking rings are fixedly provided on the inner wall of the sealing sleeve from top to bottom.
[0015] By adopting the above technical solution, the outer water-blocking ring and the inner water-blocking ring can form a multi-channel annular water-blocking structure after being extruded and deformed, thereby improving the sealing performance of the connection.
[0016] As a preferred technical solution of the present application, the extrusion ring includes an annular plug plate, the top of the annular plug plate is fixedly connected to a top ring, the upper end surface of the top ring is fixedly provided with a plurality of extrusion contacts arranged in a circular array, a through hole is opened in the middle of the extrusion contact, and a reinforcing convex strip is fixedly provided on the upper end surface of the top ring at a position between the extrusion contacts.
[0017] By adopting the above technical solution, when the extrusion ring is inserted into the sealing sleeve, the annular plug plate can apply extrusion force to the sealing sleeve on both the inner and outer sides, so that the sealing sleeve is deformed in both directions, so that the inner and outer walls of the sealing sleeve can respectively fit tightly with the outer wall of the small head end and the inner wall of the large head end, thereby improving the firmness of the connection and the sealing of the connection.
[0018] As a preferred technical solution of the present application, the fixing structure includes a plurality of threaded rods fixedly disposed on the end surface of the large head and arranged in a circular array, and the threaded rods are sleeved with threaded fastening nuts.
[0019] By adopting the above technical solution, the extrusion ring can be subjected to extrusion force by the fastening nut, so that the extrusion ring can be firmly fixed on the end face of the big head, thereby continuously playing the role of extruding the sealing sleeve to deform, thereby ensuring the reliability of the connection.
[0020] As a preferred technical solution of the present application, the sealing ring and the sealing sleeve are both made of a polymer elastic material, and the polymer elastic material is both waterproof and wear-resistant.
[0021] By adopting the above technical solution, elastic, waterproof and wear-resistant materials are used as the base material of the sealing structure, which can ensure the sealing performance while improving the service life.
[0022] The beneficial effects of the present application are as follows: a sealing ring can be used to achieve a sealed connection between the contact end faces of the small head end and the large head end, a sealing sleeve can be used to achieve a sealed connection between the outer wall of the small head end and the inner wall of the large head end, and the above-mentioned structural form can achieve continuity and balance of the sealing performance at the connection. In particular, after the sealing sleeve is installed, the sealing sleeve is squeezed and expanded by inserting an extrusion ring into it, so that the sealing sleeve can be in close contact with the small head end and the large head end and produce increased friction, thereby improving the reliability of the sealing connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is the overall structure diagram of this application;
[0024] Figure 2 It is a cross-sectional view of the overall structure of this application;
[0025] Figure 3 A cross-sectional view of a connection node of the present application;
[0026] Figure 4 This is a schematic diagram of the extrusion ring structure of the present application;
[0027] Figure 5 This is a schematic diagram of the sealing structure of this application.
[0028] In the figure: 1. pipe body; 11. large head end; 12. small head end; 2. sealing ring; 21. slot; 211. bottom sealed convex pattern; 212. side sealed convex pattern; 22. guide groove; 3. sealing sleeve; 31. extrusion groove; 32. outer water-blocking ring; 33. inner water-blocking ring; 4. extrusion ring; 41. annular plug plate; 42. top ring; 43. extrusion contact piece; 431. through hole; 44. reinforcing convex strip; 5. fixing structure; 51. threaded rod; 52. fastening nut. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] Reference Figure 1-3 A bell-and-spigot pipe joint sealing structure comprises a pipe body 1 and a sealing structure, wherein the two ends of the pipe body 1 are respectively a large head end 11 and a small head end 12, wherein the small head end 12 of one pipe body 1 is plugged into the large head end 11 of the other pipe body 1, and the sealing structure comprises a sealing ring 2 and a sealing sleeve 3, wherein the upper end surface of the sealing ring 2 is provided with a slot 21, the small head end 12 is plugged into the slot 21, the sealing sleeve 3 is wrapped around the outer wall of the small head end 12 and the upper end surface thereof is provided with an extrusion groove 31, an extrusion ring 4 is plugged into the extrusion groove 31, the extrusion ring 4 is fixedly connected to the large head end 11 through a fixing structure 5, and by adopting the above technical scheme, the sealing ring 2 can be used to realize a closed connection between the contact end surfaces of the small head end 12 and the large head end 11 In the embodiment of the present invention, the sealing sleeve 3 is used to realize the airtight connection between the outer wall of the small head end 12 and the inner wall of the large head end 11, and the continuity and balance of the sealing performance of the connection are realized by the above-mentioned structural form. In particular, after the sealing sleeve 3 is installed, the sealing sleeve 3 is squeezed and expanded by inserting the extrusion ring 4 therein, so that the sealing sleeve 3 can be in close contact with the small head end 12 and the large head end 11 and produce increased friction force, thereby improving the reliability of the sealed connection. In addition, the sealing ring 2 and the sealing sleeve 3 are both made of a polymer elastic material, and the polymer elastic material is both waterproof and wear-resistant. The elastic, waterproof and wear-resistant material is used as the base material of the sealing structure, which can ensure the sealing performance while improving the service life.
[0031] In particular, the width of the slot 21 is consistent with the thickness of the tube body of the slot 21, and the slot body size of the slot 21 is consistent with the tube body size of the small head end 12. By adopting the above technical solution, the small head end 12 can be tightly inserted into the slot 21, and water can be effectively prevented from seeping out along the contact gap between the small head end 12 and the slot 21.
[0032] Reference Figure 3 A guide groove 22 is provided at the bottom of the sealing ring 2, and when the sealing ring 2 is arranged, the guide groove 22 always faces the direction of the water flow. By adopting the above technical solution, the guide groove 22 can reduce the impact of the water flow on the protruding sealing ring 2, thereby protecting the sealing ring 2 and maintaining the airtightness of the connection between the sealing ring 2 and the small head end 12 and the large head end 11.
[0033] Reference Figure 5The bottom of the slot 21 is fixedly provided with a plurality of outwardly protruding bottom sealing convex grooves 211, and the groove walls on both sides of the slot 21 are fixedly provided with a plurality of outwardly protruding side sealing convex grooves 212. By adopting the above technical scheme, a plurality of annular water-blocking structures can be formed with the bottom sealing convex grooves 211 and the side sealing convex grooves 212, thereby improving the sealing performance of the connection.
[0034] Reference Figure 5 A plurality of equidistantly arranged outer water-blocking rings 32 are fixedly provided on the outer wall of the sealing sleeve 3 from top to bottom, and a plurality of equidistantly arranged inner water-blocking rings 33 are fixedly provided on the inner wall of the sealing sleeve 3 from top to bottom. By adopting the above technical scheme, the outer water-blocking rings 32 and the inner water-blocking rings 33 can form a multi-channel annular water-blocking structure after extrusion deformation, thereby improving the sealing performance of the connection.
[0035] Reference Figure 4 The extrusion ring 4 includes an annular plug plate 41, a top ring 42 is fixedly connected to the top of the annular plug plate 41, a plurality of extrusion contacts 43 arranged in a circumferential array are fixedly provided on the upper end surface of the top ring 42, a through hole 431 is opened in the middle of the extrusion contact 43, and a reinforcing convex strip 44 is fixedly provided on the upper end surface of the top ring 42 between the extrusion contacts 43. By adopting the above technical solution, when the extrusion ring 4 is inserted into the sealing sleeve 3, the annular plug plate 41 can apply an extrusion force to the sealing sleeve 3 toward the inner and outer sides, so that the sealing sleeve 3 is deformed in both directions, so that the inner and outer walls of the sealing sleeve 3 can be closely fitted with the outer wall of the small head end 12 and the inner wall of the large head end 11, respectively, thereby improving the firmness of the connection and the sealing of the connection.
[0036] Reference Figure 2-3 The fixing structure 5 includes a plurality of threaded rods 51 fixedly arranged on the end face of the big head end 11 and arranged in a circumferential array. The threaded rods 51 are sleeved with threaded fastening nuts 52. By adopting the above technical solution, the fastening nuts 52 can apply an extrusion force to the extrusion ring 4, so that the extrusion ring 4 can be firmly fixed on the end face of the big head end 11, thereby continuously playing the role of extruding the sealing sleeve 3 to deform, so as to ensure the reliability of the connection.
[0037] Working principle: buckle the sealing ring 2 on the end of the small head end 12, set the sealing sleeve 3 on the outside of the small head end 12, and insert the small head end 12 of one pipe body 1 into the large head end 11 of another pipe body 1. The sealing ring 2 can realize the airtight connection between the contact end faces of the small head end 12 and the large head end 11, and the sealing sleeve 3 can realize the airtight connection between the outer wall of the small head end 12 and the inner wall of the large head end 11. The above-mentioned structural form can realize the continuity and balance of the sealing performance of the connection.
[0038] In particular, when the extrusion ring 4 is inserted into the sealing sleeve 3, the annular plug plate 41 can apply extrusion pressure to the sealing sleeve 3 on both the inner and outer sides, so that the sealing sleeve 3 is deformed in both directions, and the inner and outer walls of the sealing sleeve 3 can respectively fit tightly with the outer wall of the small head end 12 and the inner wall of the large head end 11, thereby improving the firmness of the connection and the sealing of the connection.
[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A bell-and-spigot pipe joint sealing structure, comprising a pipe body (1) and a sealing structure, characterized in that: The two ends of the tube body (1) are respectively a large end (11) and a small end (12), wherein the small end (12) of one tube body (1) is plugged into the large end (11) of the other tube body (1), the sealing structure comprises a sealing ring (2) and a sealing sleeve (3), the upper end surface of the sealing ring (2) is provided with a slot (21), the small end (12) is plugged into the slot (21), the sealing sleeve (3) is wrapped around the outer wall of the small end (12) and the upper end surface thereof is provided with an extrusion groove (31), an extrusion ring (4) is plugged into the extrusion groove (31), and the extrusion ring (4) and the large end (11) are fixedly connected via a fixing structure (5).
2. A bell-and-spigot pipe joint sealing structure according to claim 1, characterized in that: The slot width of the slot (21) is consistent with the thickness of the tube body of the small head end (12), and the slot body size of the slot (21) is consistent with the size of the tube body of the small head end (12).
3. A bell-and-spigot pipe joint sealing structure according to claim 1, characterized in that: The bottom of the sealing ring (2) is provided with a flow guiding groove (22), and when the sealing ring (2) is arranged, the flow guiding groove (22) always faces the direction of water flow.
4. A bell-and-spigot joint sealing structure according to claim 2, characterized in that: The bottom of the slot (21) is fixedly provided with a plurality of outwardly protruding bottom sealing convex patterns (211), and the slot walls on both sides of the slot (21) are fixedly provided with a plurality of outwardly protruding side sealing convex patterns (212).
5. The bell-and-spigot joint sealing structure according to claim 1, characterized in that: A plurality of outer water-blocking rings (32) arranged at equal distances are fixedly provided on the outer wall of the sealing sleeve (3) from top to bottom, and a plurality of inner water-blocking rings (33) arranged at equal distances are fixedly provided on the inner wall of the sealing sleeve (3) from top to bottom.
6. A bell-and-spigot joint sealing structure according to claim 1, characterized in that: The extrusion ring (4) comprises an annular plug plate (41), the top end of the annular plug plate (41) being fixedly connected to a top ring (42), the upper end surface of the top ring (42) being fixedly provided with a plurality of extrusion contact pieces (43) arranged in a circumferential array, a through hole (431) being provided in the middle of the extrusion contact pieces (43), and a reinforcing convex strip (44) being fixedly provided on the upper end surface of the top ring (42) at a position between the extrusion contact pieces (43).
7. The bell-and-spigot joint sealing structure according to claim 1, characterized in that: The fixing structure (5) comprises a plurality of threaded rods (51) fixedly disposed on the end surface of the large head end (11) and arranged in a circumferential array, and threadedly connected fastening nuts (52) are sleeved on the threaded rods (51).
8. The bell-and-spigot joint sealing structure according to claim 1, characterized in that: The sealing ring (2) and the sealing sleeve (3) are both made of a polymer elastic material, and the polymer elastic material has both waterproofness and wear resistance.