Embedded socket connection type winding pipe
By incorporating hot-melt welding and sealing components into the embedded socket-type spiral wound tube, the problem of weak joints in the spiral wound tube is solved, achieving stable connection and sealing, providing real-time detection capabilities, and improving the service life and safety of the spiral wound tube.
Patent Information
- Application Number
- CN202520273491.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-20
AI Technical Summary
During the socket connection process of spiral wound tubes, the tube wall is prone to thinning, resulting in a weak connection that may lead to cracks and detachment.
The embedded socket connection spiral tube is used, and the connection is fixed by hot-melt welding of the spigot block and the socket block. The connection stability is enhanced by sealing components and restraints, including double sealing of elastic rubber ring and water-swellable rubber ring, hose clamp restraint to prevent detachment, and detection chip for real-time monitoring.
The increased thickness at the connection ensures stability and sealing, prevents pipe wall thinning, provides double-layer sealing and real-time detection, and improves the reliability and safety of the connection.
Smart Images
Figure CN223895425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an embedded socket connection type spiral wound tube. Background Technology
[0002] Spiral wound pipe is a type of pipe made from high-density polyethylene (HDPE) through a spiral winding and welding process. Due to its unique molding technology, it can produce pipes with diameters up to 3 meters, a feat difficult to achieve with other manufacturing processes. The excellent welding properties of HDPE not only ensure the quality of the product molding process but also provide various reliable methods for construction connections.
[0003] When connecting spiral wound tubes, socket joints are often used. When using socket joints to connect spiral wound tubes, the part of the spiral wound tube to be connected needs to be expanded outward so that the part can accommodate another section of spiral wound tube. During the expansion process, the wall of the spiral wound tube will become thinner. After long-term external erosion during subsequent use, cracks may appear in the thinned part of the tube wall, causing the connection to detach. Summary of the Invention
[0004] The purpose of this invention is to provide an embedded socket-type spiral wound tube that can increase the thickness of the connection and ensure the stability of the connection.
[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a first pipe body and a second pipe body; the first pipe body and the second pipe body are fixedly connected by a connecting assembly, the connecting assembly including an extruded spigot block and an extruded socket block, the spigot block having a hollow hole in the middle, and a positioning ring fixedly provided on one side of the spigot block, which is concentrically arranged and allows the first pipe body to be inserted to form a plug-in fit, the inner wall of the positioning ring and the side of the spigot block forming a spigot welding position for welding the first pipe body; the socket block having a socket groove on one side allowing the spigot block and the positioning ring to be inserted and forming a plug-in fit with the spigot block. On the other side of the socket block, there is a connecting groove for inserting a second pipe body to form a plug-in fit. The bottom of the connecting groove has a connecting hole. The bottom of the connecting groove and the groove wall form a socket welding position for welding the second pipe body. The socket groove communicates with the connecting groove through the connecting hole. The hollow hole corresponds to the connecting hole after the plug block and the socket groove form a plug-in fit. A sealing component is provided between the plug block and the socket groove. A limiting member is also provided to restrict the plug block in the socket groove. The first pipe body is connected to the second pipe body through the plug-in fit between the plug block and the socket groove and the limiting effect of the limiting member.
[0006] Furthermore, the sealing assembly includes an elastic rubber ring and a water-swellable rubber ring. The outer wall of the socket block is provided with an inner groove located away from the positioning ring and an outer groove located close to the positioning ring. The inner and outer grooves are symmetrically arranged on the outer wall of the socket block, and the extending direction of the inner and outer grooves is consistent with the extending direction of the outer contour of the outer wall of the socket block. The elastic rubber ring is fitted in the outer groove, and the water-swellable rubber ring is fitted in the inner groove.
[0007] Furthermore, an elastic rubber ring and a water-swellable rubber ring are simultaneously fitted inside the inner groove, and an elastic rubber ring and a water-swellable rubber ring are simultaneously fitted inside the outer groove. The elastic rubber ring is located on the side facing the positioning ring, and the water-swellable rubber ring is located on the side facing away from the positioning ring.
[0008] Furthermore, a water tightness and air tightness detection hole is provided through the side wall of the socket groove. One end of the water tightness and air tightness detection hole is connected to the outside, and the other end of the water tightness and air tightness detection hole is connected to the inside of the socket groove. When the spigot block and the socket groove are inserted into each other, the water tightness and air tightness detection hole is located between the symmetrically arranged outer groove and inner groove.
[0009] Furthermore, multiple outer and inner grooves are provided, and each outer groove and each inner groove are symmetrically arranged with the water tightness and air tightness detection hole as the axis of symmetry.
[0010] Furthermore, the limiting component is a hose clamp, which is sleeved on the outer wall of the socket groove. After the hose clamp acts, it drives the opening of the socket groove to form a contraction deformation. The positioning ring is provided with an adaptive inclined surface that can adapt to the contraction deformation of the socket groove opening. The insertion block is constrained within the socket groove by the hose clamp driving the opening of the socket groove to form a contraction deformation and by the adaptive fit between the contraction deformation of the socket groove opening and the adaptive inclined surface.
[0011] Furthermore, both the first and second tubes include an inner tube, an outer tube, and connecting ribs. The inner and outer tubes are concentrically arranged, and the extending direction of the connecting ribs is consistent with the circumferential extending direction of the inner or outer tube. Multiple connecting ribs are provided and are evenly arranged along the extending direction of the inner or outer tube. The two ends of the connecting ribs are fixedly connected to the inner or outer tube, respectively. A spiral hollow tube is formed between two adjacent connecting ribs. The spiral hollow tube is a hollow square tube. The outer tube is provided with an outer cladding reinforced solid wall layer, which can be a single layer or multiple layers.
[0012] Furthermore, both the first and second pipe bodies include a pipe wall layer, which includes an inner pipe, an outer pipe, and connecting ribs. The inner and outer pipe layers are concentrically arranged with the axis of the first or second pipe body as the center. The extension direction of the connecting ribs is consistent with the circumferential extension direction of the inner or outer pipe. Multiple connecting ribs are provided and are evenly arranged along the extension direction of the inner or outer pipe. The two ends of the connecting ribs are fixedly connected to the inner or outer pipe, respectively. A spiral hollow tube is formed between two adjacent connecting ribs. The spiral hollow tube is a square tube with a round hole.
[0013] Furthermore, the pipe wall layer is provided with two layers, and each pipe wall layer is concentrically arranged with the axis of the first pipe body or the second pipe body as the center. Adjacent pipe wall layers are fixedly connected by fusion welding strips; the outermost pipe wall layer is provided with an outer cladding reinforced solid wall layer, which can be a single layer or multiple layers.
[0014] Furthermore, a detection chip is also provided. A mounting base is fixedly provided inside the first tube and the second tube. The mounting base is truncated cone-shaped. The wider side of the mounting base is fixedly set on the inner wall of the first tube or the second tube, and the narrower side of the mounting base extends toward the inside of the first tube or the second tube. The middle part of the mounting base is hollow, and the detection chip is fixedly set in the hollow position of the mounting base.
[0015] This utility model has the following positive effects: (1) The first pipe body of this utility model is fixed to the spigot block by hot-melt welding of the spigot and the second pipe body is fixed to the connecting groove in the socket block by hot-melt welding of the socket and the second pipe body; the first pipe body and the second pipe body form a socket connection with the second pipe body through the insertion and cooperation of the spigot block and the socket groove and the limiting effect of the limiting member; since the first pipe body and the second pipe body are connected by the cooperation of the socket block and the spigot block, the pipe walls of the first pipe body and the second pipe body will not become thinner as when using the external expansion socket connection, which would result in a weak connection when the first pipe body and the second pipe body are connected. The thickness of the connection is increased to ensure the stability of the connection.
[0016] (2) The sealing component of this utility model includes an elastic rubber ring and a water-swellable rubber ring. The outer wall of the plug block is provided with an inner groove away from the positioning ring and an outer groove close to the positioning ring. The elastic rubber ring is sleeved in the outer groove and the water-swellable rubber ring is sleeved in the inner groove. Double sealing can be achieved through the elastic rubber ring and the water-swellable rubber ring to enhance the sealing performance.
[0017] (3) A water tightness and air tightness test hole is provided through the side wall of the socket groove of this utility model. One end of the water tightness and air tightness test hole is connected to the outside, and the other end of the water tightness and air tightness test hole is connected to the inside of the socket groove. When the spigot block and the socket groove form a plug-in fit, the water tightness and air tightness test hole is located between the symmetrically arranged outer groove and inner groove. The water tightness and air tightness test hole can check the airtightness of the space between the elastic rubber ring and the water-swellable rubber ring after the spigot block and the socket groove form a plug-in fit, and facilitates observation of whether the seal meets the requirements.
[0018] (4) The limiting component of this utility model is a hose clamp, which is sleeved on the outer wall of the socket groove. After the hose clamp acts, it drives the groove opening of the socket groove to form a shrinkage deformation. The positioning ring is provided with an adaptive inclined surface that can adapt to the shrinkage deformation of the socket groove opening. The spigot block is driven by the hose clamp to form a shrinkage deformation of the socket groove opening and the shrinkage deformation of the socket groove opening and the adaptive inclined surface restrict it in the socket groove. The limiting component can prevent the socket block and the spigot block from separating after they are fitted together, thus ensuring the stability of the connection.
[0019] (5) The first tube body and the second tube body of this utility model both include an inner tube, an outer tube and connecting ribs. Multiple connecting ribs are provided and are evenly arranged along the extension direction of the inner tube or the outer tube. The two ends of the connecting ribs are fixedly connected to the inner tube or the outer tube respectively. A spiral hollow tube is formed between two adjacent connecting ribs. The spiral hollow tube can reduce the weight of the tube body while ensuring the strength of the tube body.
[0020] (6) The present invention is also provided with a detection chip, which can detect the liquid flow rate and velocity, and issue an alarm warning when blockage or abnormality occurs, so as to facilitate timely detection of problems. Attached Figure Description
[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle;
[0024] Figure 3 for Figure 1 Enlarged view of part B in the middle;
[0025] Figure 4 This is a schematic diagram of the pipe wall structure of the first and second pipe bodies in Embodiment 1 of this utility model;
[0026] Figure 5This is a cross-sectional view of the single-layer hollow structure of the first and second tubes in Embodiment 2 of this utility model;
[0027] Figure 6 This is a cross-sectional view of the multi-layered hollow structure of the first and second tubes in Embodiment 2 of this utility model.
[0028] Figure 7 This is a schematic diagram of the structure of the second type of limiting component of this utility model. Detailed Implementation
[0029] (Example 1)
[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 7 This utility model comprises a first tube body 1 and a second tube body 2; the first tube body 1 and the second tube body 2 are fixedly connected by a connecting assembly 3, the connecting assembly 3 including an extruded insert block 31 and an extruded socket block 32. The insert block 31 has a hollow hole in the middle, and a positioning ring 4 is fixedly provided on one side of the insert block 31, which is concentrically arranged and allows the first tube body 1 to be inserted to form an insertion fit. The inner wall of the positioning ring 4 and the side of the insert block 31 form an insert welding position 5 for welding the first tube body 1. The socket block 32 has a socket groove 321 on one side, which allows the insert block 31 and the positioning ring 4 to be inserted and forms an insertion fit with the insert block 31. The other side of the socket block 32 has a connecting groove 322, which allows the second tube body 2 to be inserted and forms an insertion fit. The bottom of the connecting groove 322 has a connecting hole, and the bottom of the connecting groove 322 is connected to the socket 322. A socket welding slot 6 for welding the second pipe body 2 is formed between the walls of the connecting groove 322. The socket groove 321 communicates with the connecting groove 322 through a connecting hole. The hollow hole corresponds to the connecting hole after the spigot block 31 and the socket groove 321 are inserted into each other. A sealing component 7 is provided between the spigot block 31 and the socket groove 321. A limiting member 8 is also provided to restrict the spigot block 31 in the socket groove 321. The first pipe body 1 is connected to the second pipe body 2 through the insertion of the spigot block 31 and the socket groove 321 and the limiting effect of the limiting member 8. Since the first pipe body 1 and the second pipe body 2 are connected through the cooperation of the socket block 32 and the spigot block 31, the pipe walls of the first pipe body 1 and the second pipe body 2 will not become thinner as when using an outward-expanding socket connection, which would result in a weak connection between the first pipe body 1 and the second pipe body 2. Increasing the thickness of the connection ensures the stability of the connection.
[0031] Furthermore, since the first pipe body 1 and the second pipe body 2 are both hot-melt welded at the spigot welding position 5 and the socket welding position 6, the hot-melt welding results in the first pipe body 1 being fixedly connected to the spigot block 31 and the second pipe body 2 being fixedly connected to the socket block 32. The thickness of the connection between the first pipe body 1 and the second pipe body 2 is increased by the spigot block 31 and the socket block 32.
[0032] The sealing assembly 7 includes an elastic rubber ring 71 and a water-swellable rubber ring 72. The outer wall of the plug block 31 is provided with an inner groove 311 located away from the positioning ring 4 and an outer groove 312 located close to the positioning ring 4. The inner groove 311 and the outer groove 312 are symmetrically arranged on the outer wall of the plug block 31. The extending direction of the inner groove 311 and the outer groove 312 is consistent with the extending direction of the outer contour of the outer wall of the plug block 31. The elastic rubber ring 71 is sleeved in the outer groove 312, and the water-swellable rubber ring 72 is sleeved in the inner groove 311.
[0033] An elastic rubber ring 71 and a water-swellable rubber ring 72 are fitted inside the inner groove 311, and an elastic rubber ring 71 and a water-swellable rubber ring 72 are fitted inside the outer groove 312. The elastic rubber ring 71 is located on the side facing the positioning ring 4, and the water-swellable rubber ring 72 is located on the side away from the positioning ring 4.
[0034] The inner groove 311 and the outer groove 312 can also accommodate two elastic rubber rings 71 of the same material at the same time, forming a double elastic rubber ring 71 seal.
[0035] The double-layer seal can be achieved through the elastic rubber ring 71 and the water-swellable rubber ring 72, which enhances the sealing performance.
[0036] A water tightness and air tightness detection hole 3211 is provided through the side wall of the socket groove 321. One end of the water tightness and air tightness detection hole 3211 is connected to the outside, and the other end of the water tightness and air tightness detection hole 3211 is connected to the inside of the socket groove 321. When the socket block 31 and the socket groove 321 are inserted into each other, the water tightness and air tightness detection hole 3211 is located between the symmetrically arranged outer groove 312 and inner groove 311.
[0037] Multiple outer grooves 312 and multiple inner grooves 311 are provided, and each outer groove 312 and each inner groove 311 is symmetrically arranged with the water tightness and air tightness detection hole 3211 as the axis of symmetry.
[0038] The limiting component 8 is a hose clamp, which is sleeved on the outer wall of the socket groove 321. After the hose clamp is in action, it drives the groove opening of the socket groove 321 to form a contraction deformation. The positioning ring 4 is provided with an adaptive inclined surface 41 that can adapt to the contraction deformation of the groove opening of the socket groove 321. The insertion block 31 is constrained within the socket groove 321 by the hose clamp driving the groove opening of the socket groove 321 to form a contraction deformation and by the adaptive fit of the groove opening of the socket groove 321 with the adaptive inclined surface 41.
[0039] Since the socket block 32 is formed by extrusion, it has a certain degree of toughness. When the hose clamp shrinks, it can pressurize the groove of the socket groove 321 to shrink, thereby restricting the spigot block 31.
[0040] The limiting member 8 can also be a second type, which includes a return spring 81, a sliding rod 82, and a pressing block 83. A sliding groove 3212 is provided through the side wall of the receiving groove 321. The sliding rod 82 is slidably disposed within the sliding groove 3212. A limiting groove 3213 extending along the extending direction of the sliding groove 3212 is provided on the side wall of the sliding groove 3212. A limiting block 821 is provided on the sliding rod 82, which can extend into the limiting groove 3213 and form a sliding engagement with the limiting groove 3213. The return spring 81 is disposed within the limiting groove 3213, and one end of the return spring 81 is fixedly disposed within the limiting groove 3213 on the side near the outer wall of the mounting ring. The other end of the return spring 81 is fixedly mounted on the limiting block 821. The sliding rod 82 slides toward the inside of the socket groove 321 under the elastic force of the return spring 81. The pressing block 83 is fixedly connected to the end of the sliding rod 82 that slides toward the inside of the socket groove 321. The pressing block 83 can press against the outside of the positioning ring 4 through the sliding cooperation between the sliding rod 82 and the sliding groove 3212 and the elastic force of the return spring 81. The outer wall of the positioning ring 4 is provided with a limiting groove 3213 that can be inserted into the pressing block 83. The insertion block 31 is restricted in the socket groove 321 through the insertion cooperation between the pressing block 83 and the limiting groove 3213.
[0041] The limiting member 8 can prevent the socket block 32 and the spigot block 31 from separating after they are engaged, thus ensuring the stability of the connection.
[0042] Both the first tube body 1 and the second tube body 2 include an inner tube a, an outer tube b, and connecting ribs c. The inner tube a and outer tube b are arranged concentrically. The extension direction of the connecting ribs c is consistent with the circumferential extension direction of the inner tube a or the outer tube b. Multiple connecting ribs c are provided and are evenly arranged along the extension direction of the inner tube a or the outer tube b. The two ends of the connecting ribs c are fixedly connected to the inner tube a or the outer tube b, respectively. A spiral hollow tube c1 is formed between two adjacent connecting ribs c. The spiral hollow tube c1 is a hollow square tube. The outer tube b is provided with an outer cladding reinforced solid wall layer b1, which can be a single layer or multiple layers.
[0043] The system also includes a detection chip 10. Mounting seats 101 are fixedly installed inside both the first pipe body 1 and the second pipe body 2. The mounting seats 101 are frustoconical in shape, with the wider side fixed to the inner wall of the first pipe body 1 or the second pipe body 2, and the narrower side extending inwards towards the interior of the first pipe body 1 or the second pipe body 2. The mounting seats 101 are hollow in the middle, and the detection chip 10 is fixedly positioned in the hollow part of the mounting seat 101. The detection chip 10 can be connected to the community's Internet of Things (IoT) to promptly alarm in case of blockage, with a sensing range of 10 meters and a network distance of 100 meters. It can also alarm and pinpoint the exact location of damage at connection points, accurate to within 1 meter. To further improve the maintenance efficiency of the sewage system and reduce the impact of emergencies on residents' lives, an advanced intelligent monitoring system has been introduced. This system collects real-time data on pressure, flow rate, and chemical composition within the pipe using the detection chip 10 installed inside the pipe. When abnormal data is detected, the system automatically analyzes possible causes and notifies maintenance personnel via a mobile app or SMS.
[0044] The spiral hollow pipe c1 mentioned above is injected with an anti-aging coating. Since the fiber is resistant to aging, the aging mainly occurs in PP or HDPE materials. After the pipe reaches a certain aging period, or after the aging coating fails, the coating equipment can be arranged to enter the pipe and inject the anti-aging coating into the hollow layer a second or multiple times at the pre-set location, so that the aging resistance of the pipe can be continuously increased.
[0045] The working principle of this utility model is as follows: The first pipe body 1 is fixedly installed in the spigot welding position 5 by hot melting, and the second pipe body 2 is fixedly installed in the socket welding position 6 by hot melting. The first pipe body 1 is connected to the second pipe body 2 through the insertion and engagement of the spigot block 31 and the socket groove 321 in the socket block 32. During the connection, the hollow hole in the spigot block 31 is connected to the connecting hole in the connecting groove 322. After the spigot block 31 is inserted into the socket groove 321, the spigot block 31 is restricted in the socket groove 321 by the limiting member.
[0046] (Example 2)
[0047] See Figure 5 and Figure 6 The first tube body 1 and the second tube body 2 of this utility model both include a tube wall layer 8. The tube wall layer 8 includes an inner tube a, an outer tube b, and a connecting rib c. The inner tube a and the outer tube b are concentrically arranged with the axis of the first tube body 1 or the second tube body 2 as the center. The extension direction of the connecting rib c is consistent with the circumferential extension direction of the inner tube a or the outer tube b. Multiple connecting ribs c are provided and are evenly arranged along the extension direction of the inner tube a or the outer tube b. The two ends of the connecting rib c are fixedly connected to the inner tube a or the outer tube b respectively. A spiral hollow tube c1 is formed between two adjacent connecting ribs c. The spiral hollow tube c1 is a square tube with a round hole.
[0048] The pipe wall layer 8 is provided with two layers. Each pipe wall layer 8 is concentrically arranged with the axis of the first pipe body 1 or the second pipe body 2 as the center. Adjacent pipe wall layers 8 are fixedly connected by fusion welding strips 9. The outermost pipe wall layer 8 has an outer cladding reinforced solid wall layer b1 on the outer pipe b. The outer cladding reinforced solid wall layer b1 is a single layer or multiple layers.
[0049] The remaining technical features are the same as in Example 1.
[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An embedded socket-connected spiral wound tube, comprising a first tube body (1) and a second tube body (2); characterized in that: The first tube body (1) and the second tube body (2) are fixedly connected by a connecting assembly (3). The connecting assembly (3) includes an extruded spigot block (31) and an extruded socket block (32). The spigot block (31) has a hollow hole in the middle. A positioning ring (4) is fixedly provided on one side of the spigot block (31) and is arranged concentrically so that the first tube body (1) can be inserted in the middle to form a plug-in fit. The inner wall of the positioning ring (4) and the side of the spigot block (31) form a spigot welding position (5) for welding the first tube body (1). A socket groove (321) is provided on one side of the socket block (32) so that the spigot block (31) and the positioning ring (4) can be inserted and form a plug-in fit with the spigot block (31). A socket groove (321) is provided on the other side of the socket block (32) so that the second tube body (2) can be inserted and form a plug-in fit. A connecting groove (322) is provided with a connecting hole at the bottom of the connecting groove (322). A socket welding position (6) for welding the second pipe body (2) is formed between the bottom of the connecting groove (322) and the wall of the connecting groove (322). The socket groove (321) is connected to the connecting groove (322) through the connecting hole. The hollow hole corresponds to the connecting hole after the plug block (31) and the socket groove (321) are plugged in. A sealing component (7) is provided between the plug block (31) and the socket groove (321). A limiting member (8) is also provided to restrict the plug block (31) in the socket groove (321). The first pipe body (1) is connected to the second pipe body (2) through the plug-in fit of the plug block (31) and the socket groove (321) and the limiting member (8).
2. The embedded socket-connected spiral tube according to claim 1, characterized in that: The sealing assembly (7) includes an elastic rubber ring (71) and a water-swellable rubber ring (72). The outer wall of the socket block (31) is provided with an inner groove (311) located away from the positioning ring (4) and an outer groove (312) located near the positioning ring (4). The inner groove (311) and the outer groove (312) are symmetrically arranged on the outer wall of the socket block (31). The extension direction of the inner groove (311) and the outer groove (312) is consistent with the extension direction of the outer contour of the outer wall of the socket block (31). The elastic rubber ring (71) is fitted in the outer groove (312), and the water-swellable rubber ring (72) is fitted in the inner groove (311).
3. The embedded socket-connected spiral wound tube according to claim 2, characterized in that: An elastic rubber ring (71) and a water-swellable rubber ring (72) are simultaneously fitted inside the inner groove (311), and an elastic rubber ring (71) and a water-swellable rubber ring (72) are simultaneously fitted inside the outer groove (312). The elastic rubber ring (71) is located on the side facing the positioning ring (4), and the water-swellable rubber ring (72) is located on the side facing away from the positioning ring (4).
4. The embedded socket-connected spiral tube according to claim 2, characterized in that: The side wall of the socket groove (321) is provided with a water tightness and air tightness detection hole (3211). One end of the water tightness and air tightness detection hole (3211) is connected to the outside, and the other end of the water tightness and air tightness detection hole (3211) is connected to the inside of the socket groove (321). When the plug block (31) and the socket groove (321) form a plug-in fit, the water tightness and air tightness detection hole (3211) is located between the symmetrically arranged outer groove (312) and inner groove (311).
5. The embedded socket-connected spiral wound tube according to claim 4, characterized in that: The outer groove (312) and the inner groove (311) are provided in multiple ways. Each outer groove (312) and each inner groove (311) are symmetrically arranged with the water and air tightness detection hole (3211) as the axis of symmetry.
6. The embedded socket-connected spiral tube according to claim 1, characterized in that: The limiting component (8) is a hose clamp, which is sleeved on the outer wall of the socket groove (321). After the hose clamp acts, it drives the groove opening of the socket groove (321) to form a shrinkage deformation. The positioning ring (4) is provided with an adaptive inclined surface (41) that can adapt to the shrinkage deformation of the groove opening of the socket groove (321). The insertion block (31) is driven by the hose clamp to form a shrinkage deformation of the groove opening of the socket groove (321), and the shrinkage deformation of the groove opening of the socket groove (321) and the adaptive inclined surface (41) restrict it within the socket groove (321).
7. The embedded socket-connected spiral wound tube according to claim 1, characterized in that: The first tube (1) and the second tube (2) each include an inner tube (a), an outer tube (b) and a connecting rib (c). The inner tube (a) and the outer tube (b) are arranged concentrically. The extension direction of the connecting rib (c) is consistent with the circumferential extension direction of the inner tube (a) or the outer tube (b). There are multiple connecting ribs (c) and they are all evenly arranged along the extension direction of the inner tube (a) or the outer tube (b). The two ends of the connecting rib (c) are fixedly connected to the inner tube (a) or the outer tube (b) respectively. A spiral hollow tube (c1) is formed between two adjacent connecting ribs (c). The spiral hollow tube (c1) is a hollow square tube. The outer tube (b) is provided with an outer reinforced solid wall layer (b1). The outer reinforced solid wall layer (b1) is a single layer or multiple layers.
8. The embedded socket-connected spiral tube according to claim 1, characterized in that: The first tube (1) and the second tube (2) both include a tube wall layer (8). The tube wall layer (8) includes an inner tube (a), an outer tube (b), and a connecting rib (c). The inner tube (a) and the outer tube (b) are arranged concentrically with the axis of the first tube (1) or the second tube (2) as the center. The extension direction of the connecting rib (c) is consistent with the circumferential extension direction of the inner tube (a) or the outer tube (b). There are multiple connecting ribs (c) and they are evenly arranged along the extension direction of the inner tube (a) or the outer tube (b). The two ends of the connecting rib (c) are fixedly connected to the inner tube (a) or the outer tube (b) respectively. A spiral hollow tube (c1) is formed between two adjacent connecting ribs (c). The spiral hollow tube (c1) is a square tube with a round hole.
9. The embedded socket-connected spiral tube according to claim 8, characterized in that: The pipe wall layer (8) is provided with two layers. Each pipe wall layer (8) is concentrically arranged with the axis of the first pipe body (1) or the second pipe body (2) as the center. Adjacent pipe wall layers (8) are fixedly connected by fusion welding strips (9). The outermost pipe wall layer (8) has an outer cladding reinforced solid wall layer (b1) on its outer tube (b). The outer cladding reinforced solid wall layer (b1) is a single layer or multiple layers.
10. The embedded socket-connected spiral tube according to claim 1, characterized in that: The device is also provided with a detection chip (10). The first tube (1) and the second tube (2) are both fixedly provided with a mounting base (101). The mounting base (101) is frustoconical. The wider side of the mounting base (101) is fixedly set on the inner wall of the first tube (1) or the second tube (2). The narrower side of the mounting base (101) extends toward the inside of the first tube (1) or the second tube (2). The middle part of the mounting base (101) is hollow. The detection chip (10) is fixedly set in the hollow position of the mounting base (101).