Socket pressing type connection joint pipe fitting

Abstract

The invention relates to the technical field of pipe fittings, in particular to a socket press-fit type connector pipe fitting which comprises pipe bodies, a connecting pipe head is integrally formed at one end of each pipe body, a socket groove is formed in the other end of each pipe body, an inserting handle is connected to the outer ring face of each socket groove in an inserted mode, a socket plate is fixed in each connecting pipe head, and after the two pipe bodies are spliced end to end, the socket press-fit type connector pipe fitting is formed. The socket plate on the inner side of the connecting pipe head at the end part of one pipe body is inserted into the socket groove at the end part of the other pipe body, and the socket plate extrudes and pushes the inserting handle to penetrate through the pipe body and then is inserted into the inner ring surface of the connecting pipe head; the invention has the advantages of simple and understandable operation by adopting a socket connection mode. During installation, the connecting pipe head at the end of one pipe body is arranged at the end of the other pipe body in a sleeving mode, the socket plates are inserted into the corresponding socket grooves, and then primary connection can be completed, complex tools and tedious steps are not needed, the installation time is greatly shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pipe fittings, specifically a socket press-fit joint pipe fitting. Background Technology

[0002] In the field of pipe connections, traditional pipe connection methods have many shortcomings. For example, the common threaded connection method requires the use of special tools for tightening during installation and disassembly. This not only results in low installation efficiency, but also causes the threads to wear after repeated disassembly and assembly, leading to a decrease in connection sealing, leakage problems, and affecting the normal operation of the pipeline system.

[0003] While flange connections offer high connection strength, they require a large number of bolts, nuts, and other fasteners, making installation cumbersome and costly in terms of manpower and time. Furthermore, the gaskets at flange connections are prone to aging and deformation after prolonged use, which can also lead to leakage risks.

[0004] Compression fittings require extremely high machining precision for both the fittings and the ferrule. If there are deviations in the machining dimensions, it is difficult to guarantee good connection sealing and stability. Moreover, compression fittings are prone to loosening under high pressure or vibration, leading to connection failure.

[0005] For some pre-buried pipeline systems, which are rarely maintained, traditional connection methods often fail to meet the need for direct replacement of the entire pipe body should a problem arise. Repairs often require damaging the surrounding structure, resulting in high costs and significant construction difficulties. Therefore, there is an urgent need for a connection method that is easy to install, provides stable and reliable connections, has good anti-detachment properties, and can adapt to the need for direct replacement of pre-buried pipelines, in order to solve the aforementioned problems in existing pipeline connection technologies. Summary of the Invention

[0006] The purpose of this invention is to provide a socket-type press-fit connector fitting to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a socket-press-fit connector pipe fitting, comprising a pipe body, one end of which is integrally formed with a connecting pipe head, and the other end of the pipe body is provided with a socket slot, a plug handle is inserted into the outer ring surface of the socket slot, and a socket plate is fixed inside the connecting pipe head. After the two pipe bodies are assembled end to end, the socket plate on the inner side of the connecting pipe head at the end of one pipe body is inserted into the socket slot at the end of the other pipe body, and the socket plate pushes the plug handle through the pipe body and is then inserted into the inner ring surface of the connecting pipe head. The connecting pipe head has a reserved groove at the end away from the pipe body, and a plug ring is inserted into the reserved groove.

[0008] Preferably, the connecting pipe head is a circular pipe with a cross-section in the shape of an "L". The inner ring diameter of the end of the connecting pipe head away from the pipe body is equal to the outer ring diameter of the pipe body. Two rubber gasket rings with different sizes are fixed inside the connecting pipe head. The two rubber gasket rings are distributed on the inner and outer sides of the socket plate. After the two pipe bodies are assembled end to end, the rubber gasket rings are clamped between the pipe body and the connecting pipe head.

[0009] Preferably, the socket groove is an annular groove. A plurality of insertion holes are provided on the outer ring surface of the socket groove. The insertion holes and the insertion handles correspond one by one. The insertion handle is inserted into the insertion hole, and the height of the insertion handle is greater than the depth of the insertion hole. A clamping groove is provided on the inner ring surface of the connecting pipe head. The clamping groove is an annular groove. After the socket plate is inserted into the socket groove, the socket plate pushes the insertion handle to be inserted into the clamping groove.

[0010] Preferably, the width of the clamping groove is greater than the width of the insertion handle. A rubber sleeve ring is fixed inside the clamping groove. The rubber sleeve ring is a circular ring plate with a cross-section in the shape of a "匚". The distance between the two parallel side plates of the rubber sleeve ring is equal to the width of the insertion handle.

[0011] Preferably, one end of the insertion handle extending towards the socket groove is provided with an inclined surface, and the inclined surface faces the notch of the socket groove. A notch is provided at the other end of the insertion handle. An elastic rubber strip is fixed inside the notch. The two ends of the elastic rubber strip are respectively fixed on the two parallel side walls of the insertion hole.

[0012] Preferably, when the socket plate is not inserted into the socket groove, the elastic rubber strip is in an initial state. The elastic rubber strip elastically supports the other end of the insertion handle to retract into the insertion hole, and the inclined surface at one end of the insertion handle extends into the socket groove.

[0013] Preferably, after the socket plate is inserted into the socket groove and the socket plate pushes the insertion handle to be inserted into the clamping groove, the insertion handle stretches the elastic rubber strip to produce elastic deformation.

[0014] Preferably, the reserved groove is an annular groove. The plug ring is a frustum-shaped ring plate. A plurality of sealing rings are fixed on the inner ring surface of the plug ring. The sealing rings are clamped between the plug ring and the pipe body to produce elastic deformation. One end of the plug ring is integrally formed with a connecting ring, and the connecting ring is fixed to the end of the connecting pipe head by screws.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The socket and press-fit type connecting joint pipe fitting proposed by the present invention adopts a socket connection method, which is simple and easy to understand. During installation, only need to sleuth the connecting pipe head at the end of one pipe body over the end of the other pipe body, and insert the socket plate into the corresponding socket groove to complete the preliminary connection. No complex tools and cumbersome steps are required, greatly shortening the installation time and improving the construction efficiency.

[0016] By creating a pre-drilled groove at the end of the connecting pipe head furthest from the pipe body and inserting a plug ring, multiple sealing rings on the inner surface of the plug ring are clamped between the plug ring and the pipe body, resulting in elastic deformation and enhancing the sealing effect. Simultaneously, the connecting ring at one end of the plug ring is fixed to the end of the connecting pipe head with screws, further reinforcing the connection stability between the pipe body and the connecting pipe head. This effectively prevents loosening or leakage at the connection point and extends the service life of the piping system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Sectional view of the structure at point AA; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the connection structure between the pipe body and the connecting pipe head of the present invention; Figure 5 for Figure 4 Cross-sectional view of the structure at point CC; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point D.

[0018] In the diagram: 1. Pipe body, 101. Socket, 102. Connecting pipe head, 2. Socket plate, 201. Slot, 202. Rubber collar, 203. Rubber gasket, 204. Reserved groove, 205. Insert handle, 3. Notch, 301. Elastic rubber strip, 302. Plug ring, 4. Sealing ring, 401. Connecting ring, 402. Screw, 403. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-6, the present invention provides a technical solution: a socket-press-fit type connection joint pipe fitting, including a pipe body 1. One end of the pipe body 1 is integrally formed with a connecting pipe head 2, and the other end of the pipe body 1 is provided with a socket groove 101. The connecting pipe head 2 is a circular pipe with a cross-section in the shape of an "L". The inner ring diameter of the end of the connecting pipe head 2 away from the pipe body 1 is equal to the outer ring diameter of the pipe body 1. Two rubber gasket rings 204 with different sizes are fixed inside the connecting pipe head 2. The two rubber gasket rings 204 are distributed on the inner and outer sides of the socket plate 201. After two pipe bodies 1 are assembled end to end, the rubber gasket rings 204 are clamped between the pipe body 1 and the connecting pipe head 2.

[0021] Two pipe bodies 1 equipped with connecting pipe heads 2 are sleeved and connected end to end, that is, the connecting pipe head 2 at the end of one pipe body 1 is sleeved on one end of the other pipe body 1. At this time, the socket plate 201 is inserted into the corresponding socket groove 101 to achieve the socket connection of the two pipe bodies 1.

[0022] In order to achieve anti-disconnection limit while realizing the socket connection of two pipes, it is proposed that: A socket handle 3 is inserted into the outer ring surface of the socket groove 101, and a socket plate 201 is fixed inside the connecting pipe head 2. After two pipe bodies 1 are assembled end to end, the socket plate 201 inside the connecting pipe head 2 at the end of one pipe body 1 is inserted into the socket groove 101 at the end of the other pipe body 1. The socket plate 201 squeezes the socket handle 3 to penetrate the pipe body 1 and then inserts it into the inner ring surface of the connecting pipe head 2; the socket groove 101 is an annular groove, and a plurality of socket holes 102 are opened on the outer ring surface of the socket groove 101. The socket holes 102 and the socket handle 3 correspond to each other one by one. The socket handle 3 is inserted into the socket hole 102, and the height of the socket handle 3 is greater than the depth of the socket hole 102. A clamping groove 202 is opened on the inner ring surface of the connecting pipe head 2. The clamping groove 202 is an annular groove. After the socket plate 201 is inserted into the socket groove 101, the socket plate 201 pushes the socket handle 3 to be inserted into the clamping groove 202; the width of the clamping groove 202 is greater than the width of the socket handle 3, and a rubber sleeve ring 203 is fixed inside the clamping groove 202. The rubber sleeve ring 203 is a circular ring plate with a cross-section in the shape of a "匚". The distance between the two parallel side plates of the rubber sleeve ring 203 is equal to the width of the socket handle 3; one end of the socket handle 3 extending towards the socket groove 101 is provided with an inclined surface, and the inclined surface faces the notch of the socket groove 101. A notch 301 is opened at the other end of the socket handle 3, and an elastic rubber strip 302 is fixed inside the notch 301. The two ends of the elastic rubber strip 302 are respectively fixed on the two parallel side walls of the socket hole 102; when the socket plate 201 is not inserted into the socket groove 101, the elastic rubber strip 302 is in an initial state, and the elastic rubber strip 302 elastically supports the other end of the socket handle 3 to retract into the socket hole 102, and the inclined surface at one end of the socket handle 3 extends into the socket groove 101; after the socket plate 201 is inserted into the socket groove 101, after the socket plate 201 pushes the socket handle 3 to be inserted into the clamping groove 202, the socket handle 3 stretches the elastic rubber strip 302 to generate elastic deformation.

[0023] After the two pipe bodies 1 are connected end to end with sockets, disassembly is no longer considered, because the pipe connection is rarely inspected after pre-embedding. If the pipe is damaged, the entire pipe body will be replaced directly. When the two pipe bodies 1 are assembled end to end, the socket plate 201 pushes the push handle 3 into the slot 202 during the process of pushing into the corresponding pipe body 1, forming an anti-disengagement locking position between the pipe body 1 and the connecting pipe head 2.

[0024] To enhance the connection stability between pipe body 1 and connecting pipe head 2, the following proposed measures were taken: The connecting pipe head 2 has a reserved groove 205 at the end away from the pipe body 1, and a plug ring 4 is inserted into the reserved groove 205. The reserved groove 205 is an annular groove, and the plug ring 4 is a frustum-shaped ring plate. Multiple sealing rings 401 are fixed on the inner ring surface of the plug ring 4. The sealing rings 401 are clamped between the plug ring 4 and the pipe body 1 and undergo elastic deformation. A connecting ring 402 is integrally formed at one end of the plug ring 4. The connecting ring 402 is fixed to the end of the connecting pipe head 2 by screws 403.

[0025] After the pipe body 1 and the connecting pipe head 2 are connected by insertion, the plug ring 4, which is pre-fitted on the end of the pipe body 1, is pushed into the reserved groove 205. The plug ring 4 is tapped so that the reserved groove 205 is tightly locked between the connecting pipe head 2 and the pipe body 1. Then, the connecting ring 402 at the end of the plug ring 4 is fixed to the end of the connecting pipe head 2 by the screw 403.

[0026] The usage method of socket press-fit pipe fittings is as follows: The connecting pipe head 2 at one end of a pipe body 1 is sleeved on one end of another pipe body 1, so that the two pipe bodies 1 are in a head-to-tail relative position. At this time, the inserting handle 3 is in a specific initial state under the action of the elastic rubber strip 302. One end of the inserting handle 3 extending towards the socket 101 is provided with an inclined surface, the inclined surface faces the notch of the socket 101, a notch 301 is opened at the other end of the inserting handle 3, and both ends of the elastic rubber strip 302 fixed inside the notch 301 are respectively fixed on two parallel side walls of the inserting hole 102. The elastic rubber strip 302 elastically supports the other end of the inserting handle 3 to retract into the inserting hole 102, and the inclined surface at one end of the inserting handle 3 extends into the socket 101. The socket plate 201 inside the connecting pipe head 2 is inserted into the socket 101 at the end of another pipe body 1. During the insertion process, the socket plate 201 pushes the inserting handle 3. Due to the design of the inclined surface at one end of the inserting handle 3, the socket plate 201 can smoothly push the inserting handle 3. The socket plate 201 continues to be inserted, pushing the inserting handle 3 through the pipe body 1 and then inserted into the inner ring surface of the connecting pipe head 2. An annular groove-shaped clamping groove 202 is opened on the inner ring surface of the connecting pipe head 2. The width of the clamping groove 202 is greater than the width of the inserting handle 3, and a circular ring plate rubber sleeve 203 with a "匚"-shaped cross section is fixed inside the clamping groove 202. The distance between the two parallel side plates of the rubber sleeve 203 is equal to the width of the inserting handle 3. After the inserting handle 3 is inserted into the clamping groove 202, the rubber sleeve 203 can play a certain role in fixing and buffering the inserting handle 3. At the same time, when the inserting handle 3 is inserted into the clamping groove 202, the elastic rubber strip 302 will be stretched, causing it to produce elastic deformation. At this time, the two pipe bodies 1 form an anti-disconnection clamping position between the pipe body 1 and the connecting pipe head 2 through the cooperation of the socket plate 2 and the inserting handle 3, realizing head-to-tail socket connection. Since the pipeline connection is almost never overhauled after being buried, if the pipeline is damaged, the entire pipe body is directly replaced, so the disassembly problem is no longer considered after connection.

[0027] After the pipe body 1 and the connecting pipe head 2 are socket-connected, the plug ring 4 pre-sleeved on the end of the pipe body 1 is pushed into the reserved groove 205 opened at one end of the connecting pipe head 2 away from the pipe body 1. The reserved groove 205 is an annular groove and is adapted to the shape of the plug ring 4. The plug ring 4 is tapped so that the plug ring 4 is tightly stuck between the connecting pipe head 2 and the pipe body 1. At this time, the sealing ring 401 is clamped between the plug ring 4 and the pipe body 1 to produce elastic deformation, further enhancing the sealing effect. The connecting ring 402 at the end of the plug ring 4 is fixed to the end of the connecting pipe head 2 through the screw 403, completing the reinforcement of the connection stability between the pipe body 1 and the connecting pipe head 2.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A socket-type press-fit pipe fitting, comprising a pipe body (1), characterized in that: One end of the pipe body (1) is integrally formed with a connecting pipe head (2). At the other end of the pipe body (1), a socket (101) is provided. An insertion handle (3) is inserted into the outer ring surface of the socket (101). A socket plate (201) is fixed inside the connecting pipe head (2). After two pipe bodies (1) are assembled end to end, the socket plate (201) inside the connecting pipe head (2) at the end of one pipe body (1) is inserted into the socket (101) at the end of the other pipe body (1). The socket plate (201) squeezes the insertion handle (3) to penetrate the pipe body (1) and then is inserted into the inner ring surface of the connecting pipe head (2). A reserved groove (205) is provided at one end of the connecting pipe head (2) away from the pipe body (1). A plug ring (4) is inserted into the reserved groove (205).

2. The socket-press-fit pipe fitting according to claim 1, characterized in that: The connecting pipe head (2) is a circular pipe with a cross-section in the shape of "L". The inner ring diameter of the end of the connecting pipe head (2) away from the pipe body (1) is equal to the outer ring diameter of the pipe body (1). Two rubber gasket rings (204) with different sizes are fixed inside the connecting pipe head (2). The two rubber gasket rings (204) are distributed on the inner and outer sides of the socket plate (201). After two pipe bodies (1) are assembled end to end, the rubber gasket rings (204) are clamped between the pipe body (1) and the connecting pipe head (2).

3. The socket-press-fit pipe fitting according to claim 1, characterized in that: The socket (101) is an annular groove. A plurality of insertion holes (102) are provided on the outer ring surface of the socket ((101). The insertion holes (102) and the insertion handle (3) correspond to each other one by one. The insertion handle (3) is inserted into the insertion hole (102), and the height of the insertion handle (3) is greater than the depth of the insertion hole (102). A clamping groove (202) is provided on the inner ring surface of the connecting pipe head (2). The clamping groove (202) is an annular groove. After the socket plate (201) is inserted into the socket (101), the socket plate (201) squeezes the insertion handle (3) to be inserted into the clamping groove (202).

4. A socket-type press-fit pipe fitting according to claim 3, characterized in that: The width of the clamping groove (2) is greater than the width of the insertion handle (3). A rubber sleeve ring (203) is fixed inside the clamping groove (202). The rubber sleeve ring (203) is an annular plate with a cross-section in the shape of "匚". The distance between the two parallel side plates of the rubber sleeve ring (203) is equal to the width of the insertion handle (3).

5. A socket-type press-fit pipe fitting according to claim 3, characterized in that: One end of the insertion handle (3) extending towards the socket (101) is provided with an inclined surface, and the inclined surface faces the notch of the socket (101). A notch (301) is provided at the other end of the insertion handle (3). An elastic rubber strip (302) is fixed inside the notch (301). The two ends of the elastic rubber strip (302) are respectively fixed on the two parallel side walls of the insertion hole (102).

6. A socket-type press-fit pipe fitting according to claim 5, characterized in that: When the socket plate (201) is not inserted into the socket (101), the elastic rubber strip (302) is in an initial state. The elastic rubber strip (302) elastically supports the other end of the insertion handle (3) to retract into the insertion hole (102), and the inclined surface at one end of the insertion handle (3) extends into the socket (101).

7. A socket-type press-fit pipe fitting according to claim 5, characterized in that: After the socket plate (201) is inserted into the socket (101), and after the socket plate (201) squeezes the insertion handle (3) to be inserted into the clamping groove (202), the insertion handle (3) stretches the elastic rubber strip (302) to generate elastic deformation.

8. A socket-type press-fit pipe fitting according to claim 1, characterized in that: The reserved groove (205) is an annular groove, the plug ring (4) is a frustum-shaped ring plate, and multiple sealing rings (401) are fixed on the inner ring surface of the plug ring (4). The sealing rings (401) are clamped between the plug ring (4) and the tube body (1) to produce elastic deformation. One end of the plug ring (4) is integrally formed with a connecting ring (402), and the connecting ring (402) is fixed to the end of the connecting tube head (2) by screws (403).

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