Pipe coupling for a wire conduit connection

Abstract

The utility model relates to the technical field of building construction, especially a pipe joint for wire tube connection, which is used for the connection of the interfaces of a first wire tube and a second wire tube, comprising a connecting pipe and first and second sealing members fixed in the connecting pipe, the first end of the connecting pipe is adapted for the insertion of the first wire tube, the second end of the connecting pipe is adapted for the insertion of the second wire tube, the first sealing member is located at the first end of the connecting pipe and is adapted for interference fit with the first wire tube and forms a seal on the lateral side of the first wire tube, and the second sealing member is located at the second end of the connecting pipe and is adapted for interference fit with the second wire tube and forms a seal on the lateral side of the second wire tube. The utility model has the beneficial effects that when the connecting pipe and the first and second sealing members located on the inner side of the connecting pipe are connected with the wire tubes, the first and second sealing members are interference fit with the wire tubes, thereby enhancing the sealing performance of the pipe joint and the wire tubes, effectively preventing the external mortar from entering the interior of the wire tubes, and greatly reducing the risk of wire tube blockage.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a pipe connector for connecting conduits. Background Technology

[0002] In building electrical installation projects, the pre-embedding of PVC conduits is a crucial step in achieving concealed cable laying, and its construction quality directly affects the stability of the subsequent electrical system operation. Currently, two core processes are commonly used on construction sites: one is the interface sealing process, which mainly uses "adhesive bonding of the direct joint + transparent tape wrapping" as the mainstream method. The adhesive is used to axially fix the direct joint, and then the tape wrapping is used to strengthen the interface seal; the other is the conduit turning process. In order to reduce material costs and adapt to complex laying paths on site, conduits are often bent on-site using a conduit bender instead of prefabricated elbows. This process is widely used in various building scenarios due to its convenient operation and strong adaptability.

[0003] However, the existing process has significant drawbacks, and these drawbacks create a chain reaction of problems: First, the sealing reliability is insufficient. The quality of the transparent tape wrapping depends on the operator's experience, and the tightness of the tape is difficult to control uniformly. During concrete pouring, the mortar can easily seep into the conduit through gaps in the tape wrapping or at the direct connection point due to the pouring pressure and vibration. Furthermore, the adhesive can only achieve axial positioning of the interface and cannot fill the tiny radial gaps at the direct connection point, further increasing the risk of seal failure. Second, seal failure will trigger a series of subsequent problems: mortar residue that has seeped into the conduit will accumulate on the conduit wall, hindering the smooth laying of cables and significantly reducing wiring efficiency. If the mortar causes conduit blockage, the already poured wall needs to be excavated and repaired, which not only damages the structural integrity of the wall but also leads to construction delays and significantly increases later maintenance costs.

[0004] Therefore, there is an urgent need for a pipe connector that can seal the connection between two conduits. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a pipe connector for connecting conduits, which solves the technical problem of insufficient sealing at the interface of existing conduits, leading to mortar intrusion.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] This utility model embodiment provides a pipe connector for connecting conduits, used for connecting a first conduit and a second conduit at their interface. It includes a connecting pipe and a first sealing element and a second sealing element fixed inside the connecting pipe. The first end of the connecting pipe is adapted for insertion into the first conduit, and the second end of the connecting pipe is adapted for insertion into the second conduit. The first sealing element is located at the first end of the connecting pipe and is adapted to have an interference fit with the first conduit, forming a seal around the periphery of the first conduit. The second sealing element is located at the second end of the connecting pipe and is adapted to have an interference fit with the second conduit, forming a seal around the periphery of the second conduit.

[0010] Optionally, the connecting pipe is provided with a first sealing groove and a second sealing groove, with the first sealing element located in the first sealing groove and the second sealing element located in the second sealing groove.

[0011] Optionally, a first reinforcing ring and a second reinforcing ring are fixedly provided on the outside of the connecting pipe. The position of the first reinforcing ring corresponds to the position of the first sealing groove, and the position of the second reinforcing ring corresponds to the position of the second sealing groove.

[0012] Optionally, the connecting pipe is provided with a first filling groove and a second filling groove in an annular shape; the first filling groove is located to the left of the first seal, and the inner wall of the connecting pipe between the first filling groove and the first seal is adapted to form a first gap with the first conduit, and the first filling groove is adapted to allow the adhesive scraped from the outer wall of the first conduit by the first seal to flow in and be stored through the first gap; the second filling groove is located to the right of the second seal, and the inner wall of the connecting pipe between the second filling groove and the second seal is adapted to form a second gap with the second conduit, and the second filling groove is adapted to allow the adhesive scraped from the outer wall of the second conduit by the second seal to flow in and be stored through the second gap.

[0013] Optionally, the inner wall of the connecting pipe located on the left side of the first filling groove is adapted to form a third gap with the first conduit, and the inner wall of the connecting pipe located on the right side of the second filling groove is adapted to form a fourth gap with the second conduit.

[0014] Optionally, the position of the first reinforcing ring corresponds to the position of the first filling groove, and the position of the second reinforcing ring corresponds to the position of the second filling groove.

[0015] Optionally, a positioning element is provided in the middle of the connecting pipe. The left side of the positioning element is adapted to abut against the end of the first conduit, and the right side of the positioning element is adapted to abut against the end of the second conduit.

[0016] Optionally, the distance between the first gap and the second gap is in the range of 1mm-2mm.

[0017] Optionally, the first seal includes at least two first sealing rings, each of which is adapted to be interference-fitted with the first conduit; the second seal includes at least two second sealing rings, each of which is adapted to be interference-fitted with the second conduit.

[0018] Optionally, the distance between two adjacent first sealing rings and the distance between two adjacent second sealing rings are in the range of 3mm-5mm.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this utility model are as follows: This utility model provides a pipe connector for connecting conduits, used for connecting a first conduit and a second conduit at their interface. It includes a connecting pipe and a first sealing element and a second sealing element fixed inside the connecting pipe. The first end of the connecting pipe is adapted for insertion into the first conduit, and the second end of the connecting pipe is adapted for insertion into the second conduit. The first sealing element is located at the first end of the connecting pipe and is adapted to have an interference fit with the first conduit, forming a seal around the periphery of the first conduit. The second sealing element is located at the second end of the connecting pipe and is adapted to have an interference fit with the second conduit, forming a seal around the periphery of the second conduit. Compared to the prior art, when the connecting pipe and the first and second sealing elements located inside the connecting pipe are connected to the conduit, the interference fit between the first and second sealing elements and the conduit enhances the sealing performance of the pipe connector connection, effectively preventing external mortar from entering the conduit and significantly reducing the risk of conduit blockage. Attached Figure Description

[0021] Figure 1 This is a front view of Embodiment 1 of the pipe connector for conduit connection of this utility model;

[0022] Figure 2 for Figure 1 An exploded view of a pipe connector used for conduit connection is shown.

[0023] Figure 3 for Figure 1 The diagram shows a structural schematic of a pipe connector used for conduit connection;

[0024] Figure 4 for Figure 1 The diagram shows a cross-sectional view of a pipe connector for conduit connection, taken along the axial direction of the pipe connector.

[0025] Figure 5 for Figure 1 The diagram shows a sectional view of a pipe connector for conduit connection, taken along the axial direction of the pipe connector in the connected state.

[0026] Figure 6 for Figure 1 The diagram shows a cross-sectional view of a pipe connector for connecting to a conduit, taken along the axial direction of the pipe connector, wherein the pipe connector and the conduit are in a connected state.

[0027] Explanation of reference numerals in the attached figures

[0028] 1: First conduit; 2: Second conduit; 3: Connecting pipe; 4: First seal; 5: Second seal; 6: First sealing groove; 7: Second sealing groove; 8: First reinforcing ring; 9: Second reinforcing ring; 10: First filling groove; 11: Second filling groove; 12: Positioning element. Detailed Implementation

[0029] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," "left," "right," "front," and "rear" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0030] Example 1:

[0031] Reference Figures 1 to 6 This embodiment proposes a pipe connector for connecting conduits, used for connecting the first conduit 1 and the second conduit joint 2. Specifically, the pipe connector for connecting conduits in this embodiment includes a connecting pipe 3 and a first sealing element 4 and a second sealing element 5 fixed inside the connecting pipe 3, as detailed below.

[0032] In this embodiment, the first sealing element 4 and the second sealing element 5 are fixed to the connecting pipe 3 by means of bonding or snap-fitting. The first end of the connecting pipe 3 is suitable for the insertion of the first conduit 1, and the second end of the connecting pipe 3 is suitable for the insertion of the second conduit 2. Therefore, the outer diameter of the first conduit 1 and the second conduit 2 is smaller than the inner diameter of the connecting pipe 3. Thus, the first sealing element 4 is located at the first end of the connecting pipe 3, and is adapted to be interference-fitted with the first conduit 1 to form a seal around the periphery of the first conduit 1. The second sealing element 5 is located at the second end of the connecting pipe 3, and is adapted to be interference-fitted with the second conduit 2 to form a seal around the periphery of the second conduit 2.

[0033] Specifically, the first sealing element 4 and the second sealing element 5 are usually rubber O-rings with a semi-circular cross-section along their axial direction. Thus, when the first conduit 1 and the second conduit 2 extend into the connecting pipe 3, they can be press-fitted with the first sealing element 4 and the second sealing element 5 to form a seal. Moreover, the rubber O-ring has strong deformation capacity and strong friction, resulting in a tighter seal that prevents mortar from entering the interface of the two conduits. Furthermore, the cable passing through the conduit will not be obstructed and can pass through smoothly.

[0034] In summary, compared with the prior art, when the connecting pipe 3 and the first sealing element 4 and the second sealing element 5 located inside the connecting pipe 3 are connected to the conduit, the first sealing element 4 and the second sealing element 5 are interference fit with the conduit, thereby enhancing the sealing performance of the pipe connector and the conduit connection, effectively preventing external mortar from entering the conduit, and significantly reducing the risk of conduit blockage.

[0035] Furthermore, the connecting pipe 3 is provided with a first sealing groove 6 and a second sealing groove 7. The first sealing element 4 is located in the first sealing groove 6, and the second sealing element 5 is located in the second sealing groove 7. The first sealing groove 6 and the second sealing groove 7 have a polygonal or semi-circular cross-section along the axial direction of the connecting pipe 3, and the width of the opening end of the first sealing groove 6 and the second sealing groove 7 is less than their maximum width. The thickness of the first sealing element 4 and the second sealing element 5 is greater than the width of the opening end of the first sealing groove 6 and the second sealing groove 7. Thus, the first sealing element 4 and the second sealing element 5 can be snapped into the first sealing groove 6 and the second sealing groove 7, or the first sealing element 4 and the second sealing element 5 can be bonded to the first sealing groove 6 and the second sealing groove 7. The first sealing element 4 is fixed in the first sealing groove 6 by bonding or snapping, preventing the first sealing element 4 from being misaligned and improving the sealing performance between the first sealing element 4 and the first conduit 1. The second sealing element 5 is fixed in the second sealing groove 7 by bonding or snapping, preventing the second sealing element 5 from being misaligned and improving the sealing performance between the second sealing element 5 and the second conduit 2.

[0036] Furthermore, to enhance the strength of the connecting pipe 3, and to reinforce the locations of the first sealing groove 6 and the second sealing groove 7, a first reinforcing ring 8 and a second reinforcing ring 9 are fixedly provided on the outside of the connecting pipe 3. The position of the first reinforcing ring 8 corresponds to the position of the first sealing groove 6, and the position of the second reinforcing ring 9 corresponds to the position of the second sealing groove 7. The first reinforcing ring 8 and the second reinforcing ring 9 are annular in shape with an inner diameter the same as the outer diameter of the connecting pipe 3. The first reinforcing ring 8 and the second reinforcing ring 9 are fixed to the outside of the connecting pipe 3 by means of bonding, snap-fitting, or integral molding. The first reinforcing ring 8 and the second reinforcing ring 9, corresponding to the positions of the first sealing groove 6 and the second sealing groove 7, supplement the depth of the first sealing groove 6 and the second sealing groove 7, preventing the first sealing groove 6 and the second sealing groove 7 from becoming structural weak points of the connecting pipe 3.

[0037] To further improve the sealing performance of the connecting pipe 3 and the first conduit 1 and the second conduit 2, the connecting pipe 3 is provided with an annular first filling groove 10 and a second filling groove 11. The first filling groove 10 and the second filling groove 11 have a polygonal or semi-circular cross-section along the axial direction. The first filling groove 10 is located to the left of the first seal 4, that is, the first filling groove 10 is located on the side of the first seal 4 away from the second seal 5. The inner wall of the connecting pipe 3 located between the first filling groove 10 and the first seal 4 is adapted to form a first gap with the first conduit 1. The first gap indicates that there is a gap between the inner wall of the connecting pipe 3 between the first filling groove 10 and the first seal 4 and the first conduit 1. The first filling groove 10 is adapted to allow the adhesive scraped from the outer wall of the first conduit 1 by the first seal 4 to flow in and be stored through the first gap. Thus, the first conduit 1 is inserted into the connecting pipe. Before the first conduit 1 is inserted into the first end of the connecting pipe 3, the adhesive is scraped off by the first sealing element 4. The adhesive flows from the first gap to the first filling groove 10 and accumulates in the first filling groove 10. The amount of adhesive applied is calculated to fill the first filling groove 10 completely. After the adhesive solidifies, it further fixes the first conduit 1 and the connecting pipe 3, further improving the sealing between the second conduit 2 and the connecting pipe 3. This prevents external mortar from intruding and protects the first sealing element 4 from being damaged by intrusion.

[0038] Furthermore, the second filling groove 11 is located to the right of the second seal 5, that is, the second filling groove 11 is located on the side of the second seal 5 away from the first seal 4. The inner wall of the connecting pipe 3 between the second filling groove 11 and the second seal 5 is adapted to form a second gap with the second conduit 2. The second gap indicates that there is a gap between the inner wall of the connecting pipe 3 between the second filling groove 11 and the second seal 5 and the second conduit 2. The second filling groove 11 is adapted to allow the adhesive scraped from the outer wall of the second conduit 2 by the second seal 5 to flow in and be stored through the second gap. Thus, the second conduit 2 is inserted... Before connecting pipe 3, adhesive is applied around the second conduit 2. When the second conduit 2 is inserted into the second end of connecting pipe 3, the adhesive is scraped off by the second seal 5. The adhesive flows from the second gap to the second filling groove 11 and accumulates in the second filling groove 11. The amount of adhesive applied is calculated to fill the second filling groove 11 completely. After the adhesive solidifies, it further fixes the second conduit 2 and connecting pipe 3, further improving the sealing between the second conduit 2 and connecting pipe 3. This prevents external mortar from intruding and protects the second seal 5 from intrusion and damage.

[0039] Furthermore, in order to provide space for inserting the connecting tube 3 into the first conduit 1 and the second conduit 2, and to facilitate the entry of adhesive from the periphery of the first conduit 1 and the second conduit 2 into the connecting tube 3, the inner wall of the connecting tube 3 located on the left side of the first filling groove 10 is adapted to form a third gap with the first conduit 1, and the inner wall of the connecting tube 3 located on the right side of the second filling groove 11 is adapted to form a fourth gap with the second conduit 2. The adhesive is also filled in the third gap and the fourth gap until it fills both ends of the connecting tube 3. This not only improves the fixing strength between the first conduit 1 and the second conduit 2 and the connecting tube 3, but also improves the sealing performance between the first conduit 1 and the second conduit 2 and the connecting tube 3.

[0040] Furthermore, to reinforce the positions of the first filling groove 10 and the second filling groove 11 and prevent them from becoming structural weak points of the connecting pipe 3, the first reinforcing ring 8 is positioned corresponding to the position of the first filling groove 10, and the second reinforcing ring 9 is positioned corresponding to the position of the second filling groove 11. Moreover, the depths of the first filling groove 10 and the second filling groove 11 are within the range of 0.3mm-0.5mm, and the widths of the first filling groove 10 and the second filling groove 11 are within the range of 0.8mm-1.2mm.

[0041] Furthermore, to prevent significant deviations in the insertion lengths of the first conduit 1 and the second conduit 2 into the connecting pipe 3, which could affect the sealing performance between the first conduit 1, the second conduit 2, and the connecting pipe 3, a positioning element 12 is provided in the middle of the interior of the connecting pipe 3. The positioning element 12 is arranged in a ring or near-ring shape. The left side of the positioning element 12 is adapted to abut against the end of the first conduit 1, thereby completing the installation of the first conduit 1. The right side of the positioning element 12 is adapted to abut against the end of the second conduit 2, thereby completing the installation of the second conduit 2. The height of the positioning element 12 is within the range of 0.3mm-0.5mm to prevent the cables running through the first conduit 1 and the second conduit 2 from being obstructed by the positioning element 12.

[0042] To further enhance the sealing performance between the first conduit 1, the second conduit 2, and the connecting pipe 3, the first sealing element 4 includes at least two first sealing rings, both of which are adapted to be interference-fitted with the first conduit 1, forming at least a double-layer seal between the first conduit 1 and the connecting pipe 3. Thus, the number of first sealing grooves 6 within the pipe connector corresponds to the number of first sealing rings, with one first sealing ring corresponding to one first sealing groove 6, thereby improving the sealing performance between the first conduit 1 and the connecting pipe 3. The second sealing element 5 includes at least two second sealing rings, both of which are adapted to be interference-fitted with the second conduit 2, forming at least a double-layer seal between the second conduit 2 and the connecting pipe 3. Thus, the number of second sealing grooves 7 within the pipe connector corresponds to the number of second sealing rings, with one second sealing ring corresponding to one second sealing groove 7, thereby improving the sealing performance between the second conduit 2 and the connecting pipe 3.

[0043] Furthermore, the distance between two adjacent first sealing rings and the distance between two adjacent second sealing rings are within the range of 3mm-5mm. The interference fit between the first sealing ring and the first conduit 1 causes the first sealing ring to deform. In order to prevent multiple first sealing rings from affecting each other, two adjacent first sealing rings need to have an appropriate distance, and the same applies to the second sealing rings.

[0044] Example 2:

[0045] The difference between this embodiment and Embodiment 1 is that the parameters of the connecting pipe 3 are further illustrated to highlight the advantages of the connecting pipe 3 in actual use, as detailed below.

[0046] To prevent excessively large gaps between the first conduit 1, the second conduit 2, and the connecting pipe 3, which would waste adhesive, or insufficient gaps, which would result in poor fixation and sealing, the distance between the first gap and the second gap is set within the range of 1mm-2mm. Therefore, adhesive application scale lines are set 10mm from the insertion end of the first conduit 1 and the second conduit 2 to assist workers in applying adhesive, avoiding adhesive waste and uneven application. This process also retains the traditional adhesive bonding process, is perfectly compatible with existing PVC conduits and construction procedures, and is easy to promote and apply.

[0047] Furthermore, the length of the connecting pipe 3 is within the range of 50mm-60mm. The shorter length makes it convenient for operators to connect the first conduit 1, the second conduit 2, and the connecting pipe 3. The compact size design adapts to various narrow and complex construction spaces, enhancing the versatility and practicality of the pipe connector. The connecting pipe 3 is made of PVC-U material, the same material as the first conduit 1 and the second conduit 2, making it convenient to connect the adhesive connecting pipe 3 to the first conduit 1 and the second conduit 2. In this embodiment, the connecting pipe 3 has three different specifications to adapt to the commonly used diameter conduits of 16mm, 20mm, and 25mm on construction sites. Of course, other conduits of different diameters can also use the matching connecting pipe 3.

[0048] Furthermore, the applicable conduit specifications are marked on the outer wall of the connecting pipe 3, making it convenient for operators to use immediately and speeding up the installation of the pipe connector.

[0049] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pipe connector for connecting conduits, used for connecting the interface of a first conduit (1) and a second conduit (2), characterized in that: Includes a connecting tube (3) and a first sealing element (4) and a second sealing element (5) fixed inside the connecting tube (3). The first end of the connecting tube (3) is adapted to insert a first conduit (1), and the second end of the connecting tube (3) is adapted to insert a second conduit (2). The first sealing element (4) is located at the first end of the connecting tube (3) and is adapted to be interference-fitted with the first conduit (1) and form a seal on the periphery of the first conduit (1). The second sealing element (5) is located at the second end of the connecting tube (3) and is adapted to be interference-fitted with the second conduit (2) and form a seal on the periphery of the second conduit (2).

2. The pipe connector for conduit connection as described in claim 1, characterized in that: The connecting pipe (3) is provided with a first sealing groove (6) and a second sealing groove (7), the first sealing element (4) is located in the first sealing groove (6), and the second sealing element (5) is located in the second sealing groove (7).

3. The pipe connector for conduit connection as described in claim 2, characterized in that: The connecting pipe (3) is fixedly provided with a first reinforcing ring (8) and a second reinforcing ring (9). The position of the first reinforcing ring (8) corresponds to the position of the first sealing groove (6), and the position of the second reinforcing ring (9) corresponds to the position of the second sealing groove (7).

4. The pipe connector for conduit connection as described in claim 1, characterized in that: The connecting pipe (3) is provided with a first filling groove (10) and a second filling groove (11) in an annular shape; The first filling groove (10) is located to the left of the first seal (4). The inner wall of the connecting pipe (3) located between the first filling groove (10) and the first seal (4) is adapted to form a first gap with the first conduit (1). The first filling groove (10) is adapted to allow the adhesive scraped from the outer wall of the first conduit (1) by the first seal (4) to flow through the first gap and be stored. The second filling groove (11) is located to the right of the second seal (5). The inner wall of the connecting pipe (3) located between the second filling groove (11) and the second seal (5) is adapted to form a second gap with the second conduit (2). The second filling groove (11) is adapted to allow the adhesive scraped from the outer wall of the second conduit (2) by the second seal (5) to flow through the second gap and be stored.

5. The pipe connector for conduit connection as described in claim 4, characterized in that: The inner wall of the connecting pipe (3) located on the left side of the first filling groove (10) is adapted to form a third gap with the first line pipe (1), and the inner wall of the connecting pipe (3) located on the right side of the second filling groove (11) is adapted to form a fourth gap with the second line pipe (2).

6. The pipe connector for conduit connection as described in claim 4, characterized in that: The position of the first reinforcing ring (8) corresponds to the position of the first filling groove (10), and the position of the second reinforcing ring (9) corresponds to the position of the second filling groove (11).

7. The pipe connector for conduit connection as described in claim 1, characterized in that: The connecting pipe (3) is also provided with a positioning element (12) in the middle. The left side of the positioning element (12) is adapted to abut against the end of the first line pipe (1), and the right side of the positioning element (12) is adapted to abut against the end of the second line pipe (2).

8. The pipe connector for conduit connection as described in claim 1, characterized in that: The distance between the first gap and the second gap is within the range of 1mm-2mm.

9. The pipe connector for conduit connection as described in claim 1, characterized in that: The first seal (4) includes at least two first sealing rings, both of which are adapted to be interference-fitted with the first conduit (1); The second seal (5) includes at least two second sealing rings, both of which are adapted to be interference-fitted with the second conduit (2).

10. The pipe connector for conduit connection as described in claim 1, characterized in that: The distance between two adjacent first sealing rings and the distance between two adjacent second sealing rings are within the range of 3mm-5mm.

Images