Anti-seepage town drainage pipeline connector structure
By introducing a limiting arm and an elastic reset component into the interface structure of urban drainage pipes, the problem of axial misalignment of pipe sections was solved, and a stable connection and sealing effect between pipe sections were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-10
AI Technical Summary
The existing urban drainage pipe interface structure lacks a structure to restrict the axial movement of pipe sections, which makes the pipe sections prone to misalignment and affects the sealing effect.
The design employs a limiting arm and an elastic reset component. When the spigot is inserted into the socket, the limiting arm swings to avoid the movement trajectory of the inner pipe section, and after the spigot is inserted, it is embedded in the snap-fit groove to limit axial misalignment. Combined with the sealing ring to fill the gap, it ensures a seal.
This effectively prevents axial misalignment of pipe sections, ensures the sealing effect between pipe sections, and improves the stability and sealing performance of urban drainage pipelines.
Smart Images
Figure CN224106563U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of urban drainage systems, and particularly relates to a seepage-proof urban drainage pipeline interface structure. BACKGROUND
[0002] Urban drainage pipelines are important components of urban infrastructure and bear the important functions of collecting rainwater and discharging sewage. The urban drainage pipeline is composed of multiple pipe sections combined in sequence, and the adjacent pipe sections are usually sealed by means of an interface structure.
[0003] In the prior art, a common interface structure is usually composed of a socket, a spigot and a rubber ring; during installation, the rubber ring is fixedly placed in the socket, and then the spigot of another pipe section is inserted into the socket, and the elastic deformation of the rubber ring is used to realize the sealing between the two pipe sections.
[0004] The inventor finds that the existing interface structure lacks a structure for limiting the axial movement of the two pipe sections, which causes the misalignment between the pipe sections (this misalignment is usually caused by the back movement of the two pipe sections) during pipeline construction, and even causes the rubber ring to be squeezed and deformed, thereby affecting the sealing effect between the pipe sections. CONTENT OF THE UTILITY MODEL
[0005] The application provides a seepage-proof urban drainage pipeline interface structure, which aims to avoid the axial misalignment between the two pipe sections and ensure the sealing effect between the pipe sections.
[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows:
[0007] The application provides a seepage-proof urban drainage pipeline interface structure, which comprises an outer pipe section with a socket and an inner pipe section with a spigot; the outer periphery of the spigot is provided with a sealing ring adapted to abut against the inner periphery of the socket, and an annular clamping groove is formed in the outer peripheral wall of the inner pipe section, and the clamping groove is located on the side of the sealing ring away from the spigot; the inner part of the outer pipe section is provided with multiple limiting arms; the multiple limiting arms are arranged at intervals along the circumference of the outer pipe section, each limiting arm is hinged to the inner peripheral wall of the socket, and is connected with an elastic reset member for driving the swing end of the limiting arm to swing towards the central axis of the outer pipe section.
[0008] When the spigot is inserted into the socket to abut the limiting arm against the sealing ring, the limiting arm swings to avoid the inner pipe section, and the elastic reset member is elastically stored; when the spigot is inserted into the socket to separate the limiting arm from the sealing ring, the elastic reset member can drive the limiting arm to swing, so that the swing end of the limiting arm is embedded in the clamping groove.
[0009] In a possible implementation, the outer circumferential fixing sleeve of the outer pipe section is sleeved with a sleeve, one end of the sleeve extends to the outside of the outer pipe section, and the extending end has a bending portion extending radially inward along the sleeve and sleeving the outer circumference of the inner pipe section.
[0010] In a possible implementation, the inner circumferential surface of the bending portion is fixedly provided with an elastic ring, and the outer circumferential surface of the inner pipe section is provided with a positioning groove in the form of a ring suitable for embedding the elastic ring.
[0011] When the spigot is inserted into the socket and the swing end of the limiting arm is embedded in the clamping groove, the elastic ring is embedded in the positioning groove, and the two sides of the elastic ring in the axial direction thereof respectively abut against the two opposite sides of the positioning groove.
[0012] In a possible implementation, the outer circumference of the inner pipe section is sleeved with a sliding translational ring, and the translational ring is fixedly connected with a push plate penetrating through the sleeve and extending out.
[0013] When the spigot is inserted into the socket and the swing end of the limiting arm is embedded in the clamping groove, the translational ring is located on the side of the bending portion facing the outer pipe section, and the translational ring is suitable for moving towards the spigot into the gap between the spigot and the socket and abutting against the limiting arm, so that the limiting arm swings to avoid the inner pipe section, and the elastic restoring member is elastically stored.
[0014] In a possible implementation, the sleeve is provided with a guide hole in communication with the inner cavity thereof, and the push plate is slidingly inserted into the guide hole.
[0015] The guide hole is embedded with a blocking block for limiting the movement of the push plate towards the spigot, and the blocking block is located on the side of the push plate facing the spigot and is made of an elastic material.
[0016] In a possible implementation, the inner circumferential wall of the socket is provided with a plurality of grooves corresponding to the plurality of limiting arms one by one, each of the grooves has an installation shaft fixedly connected thereto, and the limiting arm has an installation hole suitable for penetrating the installation shaft.
[0017] The elastic restoring member is a torsion spring sleeved on the installation shaft, and the two ends of the torsion spring are connected with the inner wall of the installation hole and the outer wall of the installation shaft, respectively.
[0018] In a possible implementation, the inner part of the inner pipe section is fixedly provided with an inner expansion ring in contact with the inner circumferential surface of the spigot.
[0019] In a possible implementation, the inner expansion ring comprises:
[0020] Two arc-shaped plates are symmetrically arranged inside the inner pipe section to form an annular structure coaxially arranged with the inner pipe section;
[0021] The contact ends of the two arc-shaped plates are provided with a pitch adjusting structure suitable for moving the two arc-shaped plates towards each other or away from each other.
[0022] In a possible implementation, the pitch adjusting structure comprises:
[0023] Two nuts are fixed at the ends of the two arc-shaped plates and coaxially arranged; and
[0024] A bidirectional bolt has two thread parts with opposite thread directions, and the two thread parts are respectively threadedly connected with the two nuts.
[0025] In a possible implementation, the outer peripheral wall of the inner expansion ring is provided with a protruding part, and the inner peripheral wall of the socket is provided with a limiting slot suitable for embedding the protruding part.
[0026] In the embodiment, the combination of the outer pipe section and the inner pipe section can be achieved by inserting the socket into the spigot. During the process of inserting the socket into the spigot, the sealing ring will push open the limiting arm, so that the limiting arm swings to avoid the moving track of the inner pipe section and the elastic energy storage member is elastically stored. After the socket is inserted into the spigot and the limiting arm is separated from the sealing ring, the limiting arm will swing under the action of the elastic energy storage member to be embedded in the clamping slot. The limiting arm embedded in the clamping slot can limit the relative movement of the inner pipe section and the outer pipe section in the axial direction, so as to ensure the stability of the combination of the outer pipe section and the inner pipe section. At the same time, after the socket is inserted into the spigot, the sealing ring will fill the gap between the socket and the spigot, so as to ensure the sealing effect between the outer pipe section and the inner pipe section.
[0027] Compared with the prior art, the anti-leakage type urban drainage pipeline interface structure provided by the embodiment can avoid the axial misalignment between the outer pipe section and the inner pipe section, and ensure the sealing effect between the outer pipe section and the inner pipe section. BRIEF DESCRIPTION OF DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0029] Figure 1 The three-dimensional structure diagram of the anti-leakage type urban drainage pipeline interface structure provided by the embodiment of the present application;
[0030] Figure 2 The three-dimensional structure diagram of the anti-leakage type urban drainage pipeline interface structure provided by the embodiment of the present application;Figure 1 Side view;
[0031] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle;
[0032] Figure 4 For along Figure 2 Cross-sectional view of the middle BB line;
[0033] Figure 5 This is a three-dimensional structural diagram of the outer pipe section used in the embodiments of this application;
[0034] Figure 6 This is a partially enlarged schematic diagram of the outer pipe section and limiting arm used in the embodiments of this application from an explosion perspective (the outer pipe section is cross-sectionally visualized for ease of display).
[0035] Figure 7 This is a three-dimensional structural diagram of the inner tube section and sealing ring used in the embodiments of this application in the combined state;
[0036] Figure 8 This is a cross-sectional view of the inner tube section and sealing ring used in the embodiments of this application in the combined state;
[0037] Figure 9 This is a three-dimensional structural diagram of the sleeve used in the embodiments of this application;
[0038] Figure 10 This is a three-dimensional structural diagram of the translational ring used in the embodiments of this application;
[0039] Figure 11 This is an exploded view of the adjustable distance structure used in the embodiments of this application;
[0040] Explanation of reference numerals in the attached drawings: 1. Outer tube section; 11. Groove; 12. Mounting shaft; 2. Inner tube section; 21. Snap-fit groove; 22. Positioning groove; 23. Limiting groove; 3. Sealing ring; 4. Limiting arm; 41. Mounting hole; 5. Elastic reset component; 6. Sleeve; 61. Bending part; 62. Elastic ring; 63. Guide hole; 631. Stop block; 7. Translation ring; 71. Push plate; 8. Inner expansion ring; 81. Protrusion; 9. Adjustment structure; 91. Nut; 92. Two-way bolt. Detailed Implementation
[0041] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0042] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.
[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate directions or positions based on the directions or positions shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0044] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0045] Please refer to Figures 1 to 11 , the anti-seepage type urban drainage pipeline interface structure provided by the present application will be described. The anti-seepage type urban drainage pipeline interface structure provided by the present application comprises an outer pipe joint 1 and an inner pipe joint 2; wherein the outer pipe joint 1 has a socket, and the inner pipe joint 2 has a spigot suitable for being inserted into the socket.
[0046] In the present embodiment, the outer periphery of the spigot is provided with a sealing ring 3 suitable for abutting against the inner periphery of the socket, and an annular clamping groove 21 is formed on the outer peripheral wall of the inner pipe joint 2, which is located on the side of the sealing ring 3 away from the spigot.
[0047] The inner part of the outer pipe joint 1 has a plurality of limiting arms 4; the plurality of limiting arms 4 are arranged at intervals along the circumference of the outer pipe joint 1, each limiting arm 4 is hinged to the inner peripheral wall of the socket, and is connected with an elastic reset member 5 for driving the swing end of the limiting arm 4 to swing towards the central axis of the outer pipe joint 1.
[0048] When the spigot is inserted into the socket to abut the limiting arm 4 against the sealing ring 3, the limiting arm 4 can swing to avoid the inner pipe joint 2, and the elastic reset member 5 is elastically stored; as the relative movement between the outer pipe joint 1 and the inner pipe joint 2 continues, when the spigot is inserted into the socket to separate the limiting arm 4 from the sealing ring 3, the elastic reset member 5 can drive the limiting arm 4 to swing, so that the swing end of the limiting arm 4 is embedded in the clamping groove 21.
[0049] In the embodiment, the combination of the outer pipe section 1 and the inner pipe section 2 can be realized by inserting the socket into the spigot. During the process of inserting the socket into the spigot, the sealing ring 3 will push away the limiting arm 4, so that the limiting arm 4 swings to avoid the moving track of the inner pipe section 2 and the elastic restoring member 5 is elastically stored; after the socket is inserted into the spigot and the limiting arm 4 is separated from the sealing ring 3, the limiting arm 4 will swing under the action of the elastic restoring member 5 to be embedded in the clamping groove 21. The limiting arm 4 embedded in the clamping groove 21 can limit the relative movement of the inner pipe section 2 and the outer pipe section 1 along the axial direction, so as to ensure the stability of the combination of the outer pipe section 1 and the inner pipe section 2. Meanwhile, after the socket is inserted into the spigot, the sealing ring 3 will fill the gap between the socket and the spigot, so as to ensure the sealing effect between the outer pipe section 1 and the inner pipe section 2.
[0050] The anti-leakage type urban drainage pipe interface structure provided by the embodiment can avoid the axial misalignment between the outer pipe section 1 and the inner pipe section 2, and ensure the sealing effect between the outer pipe section 1 and the inner pipe section 2.
[0051] In some embodiments, as shown in Figure 1 , Figure 3 and Figure 9 , the outer peripheral fixed sleeve of the outer pipe section 1 is provided with a sleeve pipe 6, one end of the sleeve pipe 6 extends to the outside of the outer pipe section 1, and the extending end has a bending part 61 extending inward along the radial direction of the sleeve pipe 6 and sleeved on the outer periphery of the inner pipe section 2.
[0052] In some embodiments, as shown in Figure 1 , Figure 7 and Figure 9 , the inner peripheral surface of the bending part 61 is fixedly provided with an elastic ring 62, and the outer peripheral surface of the inner pipe section 2 is provided with a positioning groove 22 in the form of a ring, which is suitable for embedding the elastic ring 62.
[0053] When the socket is inserted into the spigot and the swinging end of the limiting arm 4 is embedded in the clamping groove 21, the elastic ring 62 is embedded in the positioning groove 22, and the two sides of the elastic ring 62 towards the axial direction thereof abut against the two opposite sides of the positioning groove 22, so as to realize the positioning of the outer pipe section 1 and the inner pipe section 2 and facilitate observation.
[0054] In some embodiments, as shown in Figure 1 , Figure 9 and Figure 10 , the outer periphery of the inner pipe section 2 is slidably sleeved with a translational ring 7, and the translational ring 7 is fixedly connected with a push plate 71 extending through the sleeve pipe 6.
[0055] In the embodiment, the push plate 71 has multiple groups, the multiple groups of push plates 71 are arranged at intervals along the circumferential direction of the translational ring 7, and each group of push plates 71 includes two push plates 71 symmetrically arranged.
[0056] By adopting the technical scheme, when the spigot is inserted into the socket and the swing end of the limiting arm 4 is embedded into the clamping groove 21, the translation ring 7 is located at the side of the bending part 61 facing the outer pipe section 1, and the translation ring 7 is adapted to (under the driving of manpower) move towards the spigot into the gap between the spigot and the socket, and abut against the limiting arm 4, so that the limiting arm 4 swings to avoid the inner pipe section 2, and the elastic reset member 5 elastically stores energy.
[0057] In some embodiments, as shown in Figure 9 and Figure 10 The sleeve 6 is provided with a guide hole 63 communicating with the inner cavity thereof, and the aforementioned push plate 71 is slidingly inserted into the guide hole 63.
[0058] Based on the foregoing, the guide hole 63 is embedded with a blocking block 631; the blocking block 631 is located at the side of the push plate 71 facing the spigot, and is made of an elastic material.
[0059] By adopting the technical scheme, the blocking block 631 can abut against the push plate 71, thereby limiting the movement of the push plate 71 towards the spigot.
[0060] In some embodiments, as shown in Figure 6 The inner peripheral wall of the socket is provided with a plurality of grooves 11 corresponding to the plurality of limiting arms 4 one by one; each groove 11 has a mounting shaft 12 fixedly connected thereto, and the limiting arm 4 has a mounting hole 41 adapted for the mounting shaft 12 to pass through.
[0061] Based on this, the aforementioned elastic reset member 5 is a torsion spring sleeved on the mounting shaft 12, and the two ends of the torsion spring are connected with the inner wall of the mounting hole 41 and the outer wall of the mounting shaft 12, respectively; correspondingly, the inner wall of the mounting hole 41 and the outer wall of the mounting shaft 12 are provided with a long strip-shaped groove structure adapted for the insertion and clamping of the torsion spring.
[0062] In some embodiments, as shown in Figures 1 to 4 The inside of the inner pipe section 2 is fixedly provided with an inner expansion ring 8 abutting against the inner peripheral surface of the spigot, so as to realize the fixing and adjustment of the pipe diameter of the inner pipe section 2.
[0063] In some embodiments, as shown in Figure 11 The inner expansion ring 8 comprises two arc-shaped plates.
[0064] The two arc-shaped plates are symmetrically arranged inside the inner pipe section 2 to form an annular structure coaxially arranged with the inner pipe section 2; and the contact ends of the two arc-shaped plates have a distance adjusting structure 9 adapted to drive the two arc-shaped plates to move towards each other or away from each other, and the pipe diameter of the inner pipe section 2 can be expanded to a certain extent by adjusting the distance between the two arc-shaped plates through the distance adjusting structure 9.
[0065] In some embodiments, as shown in Figure 11As shown, the adjustable distance structure 9 includes two nuts 91 and a bidirectional bolt 92.
[0066] Two nuts 91 are fixed to the ends of the two arc-shaped plates respectively, and are coaxially arranged.
[0067] The bidirectional bolt 92 has two threaded portions with opposite thread directions, and the two threaded portions are threadedly connected to two nuts 91 respectively.
[0068] In actual use, by manually rotating the bidirectional bolt 92, the two nuts 91 can be moved toward each other or away from each other, so that the two arc-shaped plates can be brought closer or further apart.
[0069] In some embodiments, such as Figure 3 , Figure 8 and Figure 11 As shown, the outer peripheral wall of the inner expansion ring 8 has a protrusion 81, and the inner peripheral wall of the insertion port has a limiting groove 23 suitable for the protrusion 81 to be inserted.
[0070] In this embodiment, the cross-section of the protrusion 81 is triangular, so that the protrusion 81 can move unidirectionally along the axial direction of the inner expansion ring 8 when deformed.
[0071] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A leak-proof interface structure for a municipal sewer pipe, comprising an outer pipe section having a socket, and an inner pipe section having a spigot; characterized in that, The outer periphery of the spigot is sleeved with a sealing ring adapted to abut against the inner periphery of the socket, and an annular clamping groove is formed in the outer periphery wall of the inner pipe section, which is located on the side of the sealing ring away from the spigot; the outer pipe section has a plurality of limiting arms inside; the limiting arms are arranged at intervals along the circumference of the outer pipe section, each of the limiting arms is hinged to the inner periphery wall of the socket, and is connected with an elastic reset member for driving the oscillating end thereof to oscillate towards the central axis of the outer pipe section; When the spigot is inserted into the socket until the sealing ring abuts against the limiting arms, the limiting arms oscillate to avoid the inner pipe section, and the elastic reset member is elastically stored; when the spigot is inserted into the socket until the limiting arms are separated from the sealing ring, the elastic reset member can drive the limiting arms to oscillate, so that the oscillating end of the limiting arms is embedded in the clamping groove.
2. The anti-leakage type of town sewer pipe joint structure according to claim 1, wherein, The outer periphery of the outer pipe section is fixedly sleeved with a sleeve, one end of the sleeve extends to the outside of the outer pipe section, and the extending end has a bent portion extending radially inward along the sleeve and sleeving the outer periphery of the inner pipe section.
3. The anti-leakage type of town sewer pipe joint structure according to claim 2, wherein, An elastic ring is fixedly arranged on the inner periphery of the bent portion, and an annular positioning groove adapted for embedding the elastic ring is formed in the outer periphery of the inner pipe section; When the spigot is inserted into the socket and the oscillating end of the limiting arm is embedded in the clamping groove, the elastic ring is embedded in the positioning groove, and the two sides of the elastic ring towards the axial direction thereof abut against the two sides of the positioning groove opposite to each other.
4. The anti-leakage type of town sewer pipe joint structure according to claim 2, wherein A translational ring is slidably sleeved on the outer periphery of the inner pipe section, and a push plate is fixedly connected to the translational ring and extends through the sleeve; When the spigot is inserted into the socket and the oscillating end of the limiting arm is embedded in the clamping groove, the translational ring is located on the side of the bent portion facing the outer pipe section, and the translational ring is adapted to move towards the spigot to the gap between the spigot and the socket and abut against the limiting arm, so that the limiting arm oscillates to avoid the inner pipe section, and the elastic reset member is elastically stored.
5. The anti-leakage type of town sewer pipe joint structure according to claim 4, wherein, A guide hole communicating with the inner cavity of the sleeve is formed in the sleeve, and the push plate is slidably inserted into the guide hole; The guide hole is embedded with a blocking block for limiting the movement of the push plate towards the spigot; the blocking block is located on the side of the push plate facing the spigot, and is made of an elastic material.
6. The anti-leakage type of town sewer pipe joint structure according to claim 1, wherein A plurality of recesses corresponding to the plurality of limiting arms are formed in the inner periphery wall of the socket; each of the recesses has an installation shaft fixedly connected thereto, and the limiting arm has an installation hole adapted for the installation shaft to pass through; The elastic reset member is a torsion spring sleeved on the installation shaft, and the two ends of the torsion spring are connected with the inner wall of the installation hole and the outer wall of the installation shaft, respectively.
7. The anti-leakage type of town sewer pipe joint structure according to claim 1, wherein An inner expansion ring is fixedly arranged in the inner pipe section and abuts against the inner periphery of the spigot.
8. The anti-leakage type of town sewer pipe joint structure according to claim 7, wherein The inner expansion ring comprises: two arc-shaped plates symmetrically arranged in the inner pipe section to form an annular structure coaxially arranged with the inner pipe section; The contact ends of the two arc-shaped plates have a pitch adjusting structure adapted to drive the two arc-shaped plates to move towards each other or away from each other.
9. The anti-leakage type of town sewer pipe joint structure according to claim 8, wherein, The distance adjusting structure comprises: two nuts fixed at the ends of the two arc-shaped plates coaxially; and a bidirectional bolt having two thread parts with opposite thread directions, and the two thread parts are respectively threadedly connected with the two nuts.
10. The leak-proof municipal sewer pipe interface structure of any one of claims 7-9, wherein, The inner circumferential wall of the socket is provided with a limiting slot suitable for embedding the protruding part.