A pipe joint for a pipeline

Abstract

A pipe joint for a pipeline, comprising a joint body, the joint body is provided with at least two sockets for inserting the pipeline, characterized in that: the inner peripheral wall of the socket is concave outward to form at least two annular grooves, the annular grooves are spaced along the axial direction of the socket, the peripheral wall between two adjacent annular grooves is a connecting section, the inner diameter of the connecting section is larger than the outer diameter of the pipeline, a sealing ring is installed in at least one annular groove, and a latch is installed in at least one annular groove, and squeezing the connecting section will drive the annular grooves on both sides to deform inward, so that the sealing ring abuts against the outer wall of the pipeline, and the latch pierces the outer wall of the pipeline. Compared with the prior art, the advantage of the utility model is that the user squeezes the peripheral wall of the connecting section, so that the connecting section will drive the annular grooves on both sides to deform inward, thereby causing the sealing ring to seal between the pipe joint and the pipeline, and the latch ensures the stability of the connection between the pipe joint and the pipeline.

Description

Technical Field

[0001] The utility model relates to a pipeline connection technology, in particular to a pipe joint used for a pipeline. Background Art

[0002] In pipeline construction, pipeline connection is a very common application requirement. At present, pipe joints are usually used for pipeline connection. The pipe joints are usually hollow cylindrical shells. The two pipes to be connected are respectively inserted into the openings at both ends of the pipe joints, so that the two pipes are sealed and connected. In order to make the pipe joints in the prior art more stable and reliable to be connected to the pipeline, the pipe joints are shown in the Chinese invention application "Plane-type clamping tooth pipe joint" with patent number CN201110292363.3 (application publication number CN102367902A), including a shell, a fastening device and a sealing ring. The shell is a cylindrical shell, and the cylindrical surface is axially broken to form an opening. The shells on both sides of the opening are provided with fastening devices for tightening and locking the openings. The inner wall of the shell is provided with sealing rings and clamping teeth. The clamping teeth can grasp the outer wall of the pipeline, thereby preventing the pipe joint and the outer wall of the pipeline from slipping, so that the pipe joint has stronger pressure resistance.

[0003] Although the above-mentioned pipe joint can be clamped more tightly with the pipeline, the fastening device of the pipe joint requires two long bolts to pass through the corresponding positioning holes and threaded holes for fixing and clamping, and the user needs to use external tools to tighten the two long bolts. Therefore, the installation and disassembly of the pipe joint is relatively difficult and inconvenient for the user to operate; and if the peripheral wall of the pipe joint shell is thicker, it is more laborious for the user to tighten the opening with the fastening device, and the user needs to tighten the long bolts hard to make the clamping teeth of the pipe joint can be clamped into the outer wall of the pipeline. In this case, the installation of the pipe joint is also relatively laborious; in addition, if the peripheral wall of the pipeline to be connected is thicker, the opening on the above-mentioned pipe joint shell cannot be locked and closed, and thus the two pipelines cannot be sealed and connected. For this reason, further improvements need to be made to the pipe joint used for pipelines. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a pipe joint which is easy to install and has a reasonable structure in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows: the pipe joint for pipelines comprises a joint body, the joint body is provided with at least two sockets for inserting pipelines, and the characteristic is that: the inner peripheral wall of the socket is outwardly concave to form at least two annular grooves, the annular grooves are distributed at intervals along the axial direction of the socket, the peripheral wall between two adjacent annular grooves is a connecting section, the inner diameter of the connecting section is larger than the outer diameter of the pipeline, a sealing ring is installed in at least one of the annular grooves, and a latch tooth is installed in at least one of the annular grooves, and squeezing the connecting section will drive the annular grooves on both sides to deform inwardly, so that the sealing ring abuts against the outer wall of the pipeline, and the latch tooth pierces the outer wall of the pipeline.

[0006] As a solution of the annular groove, preferably, there are two annular grooves, which are divided into a first annular groove and a second annular groove, the first annular groove and the second annular groove are spaced apart along the axial direction of the receiving interface, the latching teeth are installed in the first annular groove, and the sealing ring is installed in the second annular groove. The connecting section is arranged between the first annular groove and the second annular groove, and the user squeezes the connecting section, thereby driving the first annular groove and the second annular groove on both sides of the connecting section to deform inward, so that the latching teeth in the first annular groove penetrate into the outer wall of the pipe, and the sealing ring in the second annular groove abuts against the outer wall of the pipe, so that the pipe joint is sealed and connected to the pipe.

[0007] In order to make the sockets on the joint body communicate with each other, preferably, the joint body also includes a connecting section for fluid circulation, the connecting section is arranged between adjacent sockets, the inner diameter of the connecting section is less than or equal to the inner diameter of the pipe, so that the end of the pipe can abut against the end of the connecting section. When the inner diameter of the connecting section is equal to the inner diameter of the pipe, the flow rate in the pipe is equal to the flow rate in the pipe joint, so that when the pipe is connected to the pipe joint, the fluid flows more smoothly.

[0008] Furthermore, the peripheral wall of the receiving port is divided into a joint section and a connecting section, the annular groove is arranged on the peripheral wall of the joint section, the connecting section is connected to the connecting section, and the connecting section is for the pipe to be inserted. The pipe is installed in the receiving port, and the joint section allows the end of the pipe to be smoothly inserted into the connecting section, so that the end of the pipe abuts against the end of the connecting section; in addition, the joint section uses the annular groove to achieve a sealed connection with the pipe, thereby achieving a sealed connection between the receiving port of the joint body and the end of the pipe.

[0009] In order to prevent the latch teeth from affecting the insertion of the pipe in a natural state, preferably, the tooth tips of the latch teeth are all located on the same arc line, the diameter of the arc line is greater than or equal to the outer diameter of the pipe, and squeezing the connection section will drive the arc line to deform inward through the annular groove, so that the tooth tips of the latch teeth pierce the outer wall of the pipe. When the connector body is in a natural state, that is, when the connection section is not squeezed by external force, the tooth tips of the latch teeth do not affect the insertion of the pipe into the receiving port, and only when the connection section is squeezed by external force will the tooth tips of the latch teeth pierce the outer wall of the pipe.

[0010] In order to facilitate the latch to penetrate the outer wall of the pipe, preferably, the latch is provided with a notch. The extruded connecting section drives the annular grooves on both sides to deform inwards, and the notch provides deformation space for the latch, so that the latch can move toward the outer wall of the pipe to penetrate the pipe.

[0011] Compared with the prior art, the utility model has the following advantages: at least two annular grooves are arranged at intervals on the receiving end of the pipe joint, and a sealing ring and a latch are arranged in the annular groove to realize a sealed connection between the pipe joint and the pipeline, and a connecting section with an inner diameter larger than an outer diameter of the pipeline is formed between two adjacent annular grooves, so that the end of the pipeline can be smoothly inserted into the receiving end; and the wall thickness of the peripheral wall of the receiving end can be relatively thin, and it is more labor-saving to use a tool to extrude the peripheral wall of the connecting section, and the peripheral wall of the connecting section is squeezed, thereby driving the annular grooves on both sides to deform inward, thereby making the sealing ring seal between the pipe joint and the pipeline, and the latch ensures the stability of the connection between the pipe joint and the pipeline; therefore, the pipe joint has a reasonable structure, low production cost and convenient operation, and is convenient for users to connect the pipe joint to the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model connected with a pipeline;

[0013] Figure 2 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 3 It is an exploded schematic diagram of an embodiment of the utility model;

[0015] Figure 4 It is a cross-sectional view of an embodiment of the utility model in a natural state;

[0016] Figure 5 It is a cross-sectional view of an embodiment of the utility model in the state of the extruded connecting section. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 5Shown is the best embodiment of the utility model.

[0019] like Figures 1 to 4 As shown, the pipe joint of this embodiment includes a joint body 1, and two sockets 11 for inserting the pipe 2 are provided on the joint body 1. The inner peripheral wall of each socket 11 is concave outward to form two annular grooves 12, and the annular grooves 12 are divided into a first annular groove 121 and a second annular groove 122. The first annular groove 121 and the second annular groove 122 are distributed at intervals along the axial direction of the socket 11. The peripheral wall between the first annular groove 121 and the second annular groove 122 is a connecting section 13. The inner diameter of the connecting section 13 is larger than the outer diameter of the pipe 2. A latch tooth 4 is installed in the first annular groove 121. The tooth tips of the latch tooth 4 are all located on the same arc line. A notch 41 is provided on the latch tooth 4. The diameter of the arc line is larger than the outer diameter of the pipe 2. The tooth tip of the latch tooth 4 does not affect the insertion of the pipe 2 into the socket 11. A sealing ring 3 is installed in the second annular groove 122. In addition, the joint body 1 also includes a connecting section 14 for fluid circulation, and the connecting section 14 is arranged between the two sockets 11. The inner diameter of the connecting section 14 is equal to the inner diameter of the pipeline 2, so that the end of the pipeline 2 can be against the end of the connecting section 14; and the peripheral wall of the socket 11 is divided into a joint section 111 and a connecting section 112, and the annular groove 12 is arranged on the peripheral wall of the joint section 111, and the connecting section 112 is connected to the connecting section 14, and the connecting section 112 is for the pipeline 2 to be inserted.

[0020] In this embodiment, the user uses a hydraulic tool to squeeze the peripheral wall of the connecting section 13. Figure 5 As shown, the extruded connecting section 13 will drive the first annular groove 121 and the second annular groove 122 on both sides to deform inward, the second annular groove 122 makes the sealing ring 3 abut against the outer wall of the pipe 2, and the first annular groove 121 will drive the arc line where the tooth tip of the latch tooth 4 is located to deform inward, so that the latch tooth 4 penetrates into the outer wall of the pipe 2.

[0021] The working process of this embodiment is as follows: insert the pipe 2 to be connected into the receiving port 11 of the joint body 1, insert the pipe 2 into the connecting section 112, the end of the pipe 2 abuts against the end of the connecting section 14, and the annular groove 12 of the connecting section 111 and the connecting section 13 do not contact the outer peripheral wall of the pipe 2. Figure 4 As shown; then the user uses a hydraulic tool to squeeze the connecting section 13, so that the inner peripheral wall of the connecting section 13 abuts against the outer peripheral wall of the pipe 2, and the connecting section 13 will drive the first annular groove 121 and the second annular groove 122 on both sides to deform inward, so that the sealing ring 3 in the second annular groove 122 abuts against the outer wall of the pipe 2, and the latching teeth 4 in the first annular groove 121 penetrate into the outer wall of the pipe 2, thereby completing the sealed connection between the pipe joint and the pipe, as shown in FIG. Figure 5 shown.

Claims

1. A pipe joint for a pipeline, comprising a joint body (1), wherein the joint body (1) is provided with at least two receiving ports (11) for inserting a pipeline (2), wherein: The inner peripheral wall of the receiving interface (11) is concave outward to form at least two annular grooves (12), the annular grooves (12) are spaced apart along the axial direction of the receiving interface (11), the peripheral wall between two adjacent annular grooves (12) is a connecting section (13), the inner diameter of the connecting section (13) is larger than the outer diameter of the pipe (2), a sealing ring (3) is installed in at least one of the annular grooves (12), and a latching tooth (4) is installed in at least one of the annular grooves (12), and squeezing the connecting section (13) will drive the annular grooves (12) on both sides to deform inward, so that the sealing ring (3) abuts against the outer wall of the pipe (2), and the latching tooth (4) penetrates into the outer wall of the pipe (2).

2. The pipe joint according to claim 1, characterized in that: There are two annular grooves (12), and the annular grooves (12) are divided into a first annular groove (121) and a second annular groove (122). The first annular groove (121) and the second annular groove (122) are spaced apart along the axial direction of the receiving interface (11). The latching tooth (4) is installed in the first annular groove (121), and the sealing ring (3) is installed in the second annular groove (122).

3. The pipe joint according to claim 1, characterized in that: The joint body (1) also includes a connecting section (14) for fluid circulation, the connecting section (14) being arranged between adjacent receiving surfaces (11), the inner diameter of the connecting section (14) being smaller than or equal to the inner diameter of the pipeline (2), so that the end of the pipeline (2) can abut against the end of the connecting section (14).

4. The pipe joint according to claim 3, characterized in that: The peripheral wall of the receiving interface (11) is divided into a joint section (111) and a connecting section (112); the annular groove (12) is arranged on the peripheral wall of the joint section (111); the connecting section (112) is connected to the connecting section (14); and the connecting section (112) is for the pipe (2) to be inserted.

5. The pipe joint according to claim 1, characterized in that: The tooth tips of the latch teeth (4) are all located on the same arc line, the diameter of which is greater than or equal to the outer diameter of the pipe (2). Extrusion of the connecting section (13) will drive the arc line to deform inward through the annular groove (12), so that the tooth tips of the latch teeth (4) penetrate into the outer wall of the pipe (2).

6. The pipe joint according to claim 1, characterized in that: The latching tooth (4) is provided with a notch (41).

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