Composite pipe
By adopting convex and concave joint structure and resistive wire electrofusion connection at the composite pipe joint, combined with the U-shaped tongue and groove/U-shaped tenon design, the problem of insufficient sealing of the composite pipe is solved, achieving higher sealing and longer Service life.
Patent Information
- Application Number
- CN202421159822.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing composite pipes are insufficiently sealed at the joints, resulting in medium leakage and shortening the service life of the pipe.
The first and second joints with convex and concave joint structure are designed through resistive wire electrofusion connection and U-shaped tongue groove/U-shaped tenon head design to ensure the close matching of the joints and uniform external force distribution, reducing gaps and improving sealing.
It effectively reduces the gaps in the joints, improves sealing properties, prevents medium leakage, and maintains a good sealing effect under different conditions, extending the service life of the pipe.
Smart Images
Figure CN222255398U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of pipeline design, and specifically relates to a composite pipe. Background Art
[0002] When existing composite pipes are connected in pairs, a clearance fit method is usually adopted, which results in insufficient sealing at the joints, making it easy for problems such as water leakage, bulging, and rupture to occur. This problem will accelerate the aging of the pipes and shorten the service life of the pipes. Utility Model Content
[0003] The main purpose of the present application is to provide a composite pipe, aiming to solve the problem of medium leakage caused by insufficient sealing at the joint connection of the existing composite pipe.
[0004] To achieve the above-mentioned purpose, the present application provides a composite pipe, comprising: a composite pipe body, a first interface is provided on one side of the composite pipe body, and a second interface is provided on the other side of the composite pipe body, wherein the first interface is provided with a first joint, and the second interface is provided with a second joint, the first joint adopts a tenon structure, and the second joint adopts a convex tenon structure, and in any two connected composite pipe bodies, the first joint of one composite pipe body and the second joint of the other composite pipe body constitute a matching convex-concave tenon joint structure.
[0005] Optionally, the first joint includes: a first connecting part, the outer diameter of the first connecting part is smaller than the inner diameter of the first interface matched therewith, a resistance wire is arranged on the outer periphery of the first connecting part, and the first connecting part and the first interface are connected by electric fusion based on the resistance wire.
[0006] Optionally, the first joint further includes: a second connection part, the second connection part and the first connection part are integrally formed, and the first joint is connected to the second joint via the second connection part; the second connection part includes: a first tenon, and a tenon groove is provided on the inner side of the first tenon.
[0007] Optionally, the mortise and tenon is an arched mortise and tenon or a U-shaped mortise and tenon.
[0008] Optionally, the second joint includes: a third connection part, the outer diameter of the third connection part is smaller than the inner diameter of the second interface matched therewith, the outer periphery of the third connection part is provided with a resistance wire, and the third connection part and the second interface are connected by electric fusion based on the resistance wire; a fourth connection part, the fourth connection part and the third connection part are integrally formed, and the fourth connection part and the second connection part are mortise-jointed.
[0009] Optionally, the fourth connecting portion includes: a second tenon, the second tenon is aligned with the first tenon, and the second tenon and the third connecting portion are provided with tenons around one side.
[0010] Optionally, the tenon is an arched tenon or a U-shaped tenon.
[0011] Optionally, the tenon includes: an integrally formed tenon shoulder, a tenon neck and a tenon tip, wherein the tenon shoulder is tightly attached to the edge of the tenon groove, the tenon neck serves as a transition portion between the tenon shoulder and the tenon tip, and the tenon tip is tightly attached to the bottom of the tenon groove.
[0012] Optionally, a sealing member is provided at the connecting seam between the first joint and the second joint.
[0013] Optionally, a protective cover is disposed outside the first joint and the second joint.
[0014] Compared with the prior art, the beneficial effect brought by the present application is that: the present application adopts a first joint and a second joint with a convex-concave mortise and tenon structure at both ends of the composite pipe, so that the first joint and the second joint can form a physical barrier through precise matching, thereby reducing the gap; in addition, since the first joint and the second joint can be tightly engaged, the external force will be evenly distributed on the joint surface of the two, which can reduce the sealing failure caused by excessive local stress. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of a planar structure of a composite tube provided by an embodiment of the present application;
[0016] Figure 2 is a schematic diagram of a planar structure of a composite tube provided in another embodiment of the present application;
[0017] Figure 3 is a schematic diagram of a planar structure of a first joint provided in another embodiment of the present application;
[0018] Figure 4 is a schematic diagram of a three-dimensional structure of a first joint provided in another embodiment of the present application;
[0019] Figure 5 is a schematic diagram of a planar structure of a second joint provided in another embodiment of the present application;
[0020] Figure 6 is a schematic diagram of a three-dimensional structure of a second joint provided in another embodiment of the present application;
[0021] Figure 7 is a schematic diagram of connection between a first connector and a second connector provided in another embodiment of the present application;
[0022] Figure 8 is a schematic diagram of the planar structure of an improved first joint provided by another embodiment of the present application;
[0023] Fig. 9 is a schematic diagram of a three-dimensional structure of an improved first joint provided in another embodiment of the present application;
[0024] Fig.10 is a schematic diagram of the planar structure of an improved second joint provided by another embodiment of the present application;
[0025] Fig.11 is a schematic diagram of the three-dimensional structure of an improved second joint provided in another embodiment of the present application;
[0026] Fig.12 is a schematic diagram of a three-dimensional structure of a composite tube provided in another embodiment of the present application;
[0027] Fig.13 is a schematic diagram of the three-dimensional structure of a composite pipe after the connection seam is sealed according to another embodiment of the present application;
[0028] Fig.14 It is a schematic diagram of the three-dimensional structure of a composite pipe with a protective cover added according to another embodiment of the present application.
[0029] The following are the descriptions of the reference numerals:
[0030] 1. Composite pipe body; 1-1. First interface; 1-2. Second interface; 1-3. First connection seam; 1-4. Second connection seam; 2. First joint; 2-1. First connection part; 2-2. Second connection part; 2-2-1. First tenon; 2-2-2. Tenon groove; 3. Second joint; 3-1. Third connection part; 3-2. Fourth connection part; 3-2-1. Second tenon; 3-2-2. Tenon head; 3-2-2-1. Tenon shoulder; 3-2-2-2. Tenon neck; 3-2-2-3. Tenon tip; 4. Waterproof sealing tape; 5. Protective cover; 6. Protective cover. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0035] Figure 1 and Figure 2 is a schematic diagram of the structure of a composite tube provided by an exemplary embodiment of the present application, such as Figure 1 As shown, the composite pipe comprises a composite pipe body 1, one side of the composite pipe body 1 is provided with a first interface 1-1, and the other side of the composite pipe body 1 is provided with a second interface 1-2. Figure 2 As shown, the first interface 1-1 is provided with a first joint 2, and the second interface 1-2 is provided with a second joint 3, wherein the first joint 2 adopts a mortise and tenon structure, and the second joint 3 adopts a convex and tenon structure, and the first joint 2 and the second joint 3 constitute a matching convex and concave mortise and tenon joint structure.
[0036] In this exemplary embodiment, when the Figure 1 and Figure 2When two composite pipes of the structure shown are connected, the first joint 2 of one composite pipe needs to be matched with the second joint 3 of the other composite pipe. When the first joint 2 and the second joint 3 are matched, multiple contact surfaces can be provided and a mechanical fit can be formed, thereby effectively resisting the pressure from the inside and outside of the pipeline to prevent the joint from loosening or detaching during use, thereby ensuring the stability and sealing of the connection between the two composite pipes.
[0037] Figure 3 is a schematic diagram of a planar structure of a first joint 2 provided by another exemplary embodiment of the present application, Figure 4 is a schematic diagram of a three-dimensional structure of a first joint 2 provided by another exemplary embodiment of the present application, Figure 5 is a schematic diagram of the planar structure of a second joint 3 provided by another exemplary embodiment of the present application, Figure 6 It is a schematic diagram of the three-dimensional structure of the second joint 3 provided by another exemplary embodiment of the present application.
[0038] like Figure 3 and Figure 4 As shown, the first connector 2 includes a first connecting portion 2-1 and a second connecting portion 2-2, wherein a resistance wire is arranged on the periphery of the first connecting portion 2-1. Figure 2 As shown, the outer diameter of the first connection part 2-1 is slightly smaller than the inner diameter of the first interface 1-1, and the resistance wire outside the first connection part 2-1 is connected to the inner side of the first interface 1-1 by electric fusion of the resistance wire.
[0039] Among them, since the resistance wire on the outer periphery of the first connecting part 2-1 and the connecting surface on the inner side of the first interface 1-1 are uniformly melted and re-solidified, the connection between the first joint 2 and the first interface 1-1 is very strong and has excellent sealing performance, which is particularly suitable for high pressure or occasions with strict requirements on leakage. In addition, compared with the clearance fit, the first joint 2 and the first interface 1-1 are connected by electric fusion, which is not easy to loosen due to vibration or impact, thereby improving the reliability and safety of pipeline sealing.
[0040] like Figure 5 and Figure 6 As shown, the second connector 3 includes a third connecting portion 3-1 and a fourth connecting portion 3-2. A resistance wire is also arranged outside the third connecting portion 3-1. Figure 2 As shown, the outer diameter of the third connection part 3-1 is slightly smaller than the inner diameter of the second interface 1-2, and the third connection part 3-1 is also connected to the inner side of the second interface 1-2 by electric fusion of a resistance wire. It should be noted that since the second joint 3 and the second interface 1-2 are also connected by electric fusion, the technical effect described for the first joint 2 and the first interface 1-1 can be produced, which will not be repeated here.
[0041] Continue to refer Figures 3 to 6 The second connection part 2-2 includes a first tenon 2-2-1, a tenon groove 2-2-2 is provided in the first tenon 2-2-1, the outer diameter of the first tenon 2-2-1 is larger than the outer diameter of the first interface 1-1, and when the first connection part 2-1 is connected to the first interface 1-1 based on the resistance wire electric fusion connection, the second connection part 2-2 is clamped on the outer side of the first interface 1-1. The fourth connection part 3-2 includes a second tenon 3-2-1, and a tenon head 3-2-2 (such as Figure 6 As shown, the tenon 3-2-2 is located on the side of the second tenon 3-2-1 facing away from the second interface 1-2), the outer diameter of the second tenon 3-2-1 is larger than the outer diameter of the second interface 1-2, and when the third connection part 3-1 and the second interface 1-2 are connected based on resistance wire electric fusion, the fourth connection part 3-2 is clamped on the outer side of the second interface 1-2. When two composite pipes need to be connected, as shown in FIG. Figure 7 As shown, by simply aligning the first tenon 2-2-1 and the second tenon 3-2-1 and then inserting the tenon 3-2-2 into the tenon groove 2-2-2, the first joint 2 and the second joint 3 can be tightly docked, thereby connecting the two composite pipes into an organic whole.
[0042] It should be noted that Figure 3 and Figure 4 The mortise groove 2-2-2 shown is an arched mortise groove. At the same time, for matching connection, the tenon 3-2-2 is also an arched tenon. Specifically, the arched tenon includes an integrally formed tenon shoulder 3-2-2-1, a tenon neck 3-2-2-2 and a tenon tip 3-2-2-3, wherein the tenon shoulder 3-2-2-1 fits with the edge of the mortise groove 2-2-2 to provide lateral support; the tenon neck 3-2-2-2 serves as a transition portion between the tenon shoulder 3-2-2-1 and the tenon tip 3-2-2-3. , which helps to disperse and transfer pressure and avoid excessive concentration of pressure, thereby improving the overall strength of the mortise 2-2-2 and the tenon 3-2-2 after they are matched; the tenon tip 3-2-2-3, as the innermost part of the tenon 3-2-2 that penetrates into the mortise 2-2-2, is close to the bottom of the mortise 2-2-2, ensuring that the tenon 3-2-2 and the mortise 2-2-2 can be tightly fitted in the correct position to prevent the mortise 2-2-2 and the tenon 3-2-2 from sliding or separating along the joint surface.
[0043] Although as mentioned above, the mortise 2-2-2 and the tenon 3-2-2 with the above structure can ensure the sealing between the first joint 2 and the second joint 3, since the mortise 2-2-2 is arched, when the tenon 3-2-2 is subjected to lateral or torsional force, it is easier to loosen, thereby affecting the sealing of the first joint 2 and the second joint 3 after docking.
[0044] Based on the above problems, the present application makes corresponding improvements to the mortise groove 2-2-2 and the tenon 3-2-2. The improved mortise groove 2-2-2 and the tenon 3-2-2 are as follows: Figures 8 to 11 shown.
[0045] Figure 8 is a schematic plan view of the structure of an improved first joint 2 provided by another exemplary embodiment of the present application. Fig. 9 It is a schematic diagram of the three-dimensional structure of an improved first joint 2 provided by another exemplary embodiment of the present application. Fig.10 is a schematic plan view of the structure of an improved second joint 3 provided by another exemplary embodiment of the present application, Fig.11 It is a schematic diagram of the three-dimensional structure of an improved second joint 3 provided by another exemplary embodiment of the present application.
[0046] like Figure 8 and Fig. 9 As shown, the mortise and tenon 2-2-2 is improved to a mortise and tenon with a U-shaped cross section. Figure 3 and Figure 4 The arched mortise and tenon shown in the figure can form a closed connection system, and at the same time can adapt to a certain degree of pipeline tolerance and misalignment, and can still maintain good sealing even if the pipeline is slightly offset or irregular. It should be noted that the U-shaped mortise and tenon also includes an integrally formed tenon shoulder 3-2-2-1, tenon neck 3-2-2-2 and tenon tip 3-2-2-3, and the functions of the tenon shoulder 3-2-2-1, tenon neck 3-2-2-2 and tenon tip 3-2-2-3 are as described above. In addition, as Fig.10 and Fig.11 As shown, the tenon is improved into a tenon with a U-shaped cross section so as to cooperate with the U-shaped tenon groove.
[0047] It should be noted that when the improved tenon and the improved mortise are connected together, compared with the arched mortise and the arched tenon, since the U-shaped mortise can form a continuous embracing structure around the tenon and then form a continuous closed interface, on the one hand, it can reduce the gap between the first joint 2 and the second joint 3, and on the other hand, it can increase the friction between the first joint 2 and the second joint 3, so that the two will not be easily displaced due to external force or internal pressure fluctuations, thereby increasing the sealing between the two.
[0048] In summary, compared with the small gap that may exist in the arched mortise and tenon, the U-shaped mortise and tenon can reduce the existence of the joint between the tenon and the tenon through a close fit. Even under different temperature and humidity conditions, it can maintain a good sealing effect and reduce the gap changes caused by material expansion or contraction.
[0049] Finally, it should be noted that the present application may also provide a sealing rubber ring outside the first joint 2 and the second joint 3 described above, and the sealing rubber ring can fill the tiny gap between the joints through its elastic deformation to form a sealing barrier, thereby further preventing the medium from leaking from the joints.
[0050] In another exemplary embodiment, in order to further enhance the sealing performance of the composite pipe, as Fig.12 and Fig.13 As shown, the present application also uses sealants 4 to seal the first connecting seam 1-3 of the first joint 2 and the second connecting seam 1-4 of the second joint 3, respectively. The sealants 4 are sealed by wrapping a waterproof sealing tape or by using a sealant to further ensure the sealing effect at the composite pipe joint, thereby preventing the pipes from being affected by external water vapor such as outdoor rain during stacking.
[0051] In another exemplary embodiment, to avoid joint wear and ensure the integrity of the joint, Fig.14 As shown, the present application sets a protective cover 6 on the outside of the first joint 2 and the second joint 3. By setting the protective cover 6, firstly, the joint can be effectively prevented from being damaged by external force, and secondly, the corrosion and aging of the joint by soil, water, chemicals, etc. can be isolated.
[0052] Continue to refer Fig.14 In an exemplary embodiment of the present application, a protective cover 5 may be provided on the outside of the composite pipe body 1. The material of the protective cover includes but is not limited to PVC / PP, etc. By providing the protective cover, the outer layer of the composite pipe can be effectively protected from damage during transportation, installation and use.
[0053] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A composite pipe, characterized in that: The composite pipe comprises: A composite pipe body, wherein a first interface is provided on one side of the composite pipe body, and a second interface is provided on the other side of the composite pipe body, wherein the first interface is provided with a first joint, and the second interface is provided with a second joint, the first joint adopts a mortise and tenon structure, and the second joint adopts a convex and concave structure. In any two connected composite pipe bodies, the first joint of one composite pipe body and the second joint of the other composite pipe body constitute a matching convex and concave mortise and tenon structure.
2. The composite pipe according to claim 1, characterized in that: The first connector comprises: A first connection part, wherein the outer diameter of the first connection part is smaller than the inner diameter of the first interface matched therewith, a resistance wire is arranged on the outer periphery of the first connection part, and the first connection part and the first interface are connected by electric fusion based on the resistance wire.
3. The composite pipe according to claim 2, characterized in that: The first connector also includes: a second connection portion, wherein the second connection portion and the first connection portion are integrally formed, and the first connector is connected to the second connector via the second connection portion; The second connecting portion comprises: A first tenon, wherein a tenon groove is arranged on the inner side of the first tenon.
4. The composite pipe according to claim 3, characterized in that: The mortise and tenon grooves are arched mortise and tenon grooves or U-shaped mortise and 5. The composite pipe according to claim 3, characterized in that: The second connector comprises: a third connection part, wherein the outer diameter of the third connection part is smaller than the inner diameter of the second interface matched therewith, a resistance wire is arranged on the outer periphery of the third connection part, and the third connection part and the second interface are connected by electric fusion based on the resistance wire; A fourth connection portion, wherein the fourth connection portion and the third connection portion are integrally formed, and the fourth connection portion and the second connection portion are mortise-jointed.
6. The composite pipe according to claim 5, characterized in that The fourth connecting portion comprises: The second tenon is aligned with the first tenon, and the second tenon and the third connecting portion are provided with tenons around one circle.
7. The composite pipe according to claim 6, characterized in that The tenon is an arched tenon or a U-shaped tenon.
8. The composite pipe according to claim 6 or 7, characterized in that: The tenon comprises: The tenon shoulder, tenon neck and tenon tip are integrally formed, wherein the tenon shoulder is closely attached to the edge of the tenon groove, the tenon neck serves as a transition portion between the tenon shoulder and the tenon tip, and the tenon tip is closely attached to the bottom of the tenon groove.
9. The composite pipe according to claim 1, characterized in that: The connecting seam between the first joint and the second joint is provided with a sealing member.
10. The composite pipe according to claim 1, characterized in that A protective cover is disposed outside the first joint and the second joint.