Pipe connection assembly and valve structure

Abstract

The application relates to the technical field of pipe connection, in particular to a pipe connection assembly and a valve structure. The pipe connection assembly comprises a connecting head, a first connecting sleeve, a first connecting pipe and a first clamping ring. The connecting head is provided with a first connecting part. The first connecting part, the first connecting sleeve and the first connecting pipe enclose a first limiting groove. The first clamping ring is installed in the first limiting groove. At least one of the side wall of the first connecting sleeve in contact with the first clamping ring and the side wall of the first connecting part in contact with the first clamping ring is arranged to be inclined. The first clamping ring is provided with a first notch. The direction of the combined force of the first connecting sleeve and the first connecting part on the first clamping ring is arranged to be at an angle with the axis direction of the first connecting pipe, so that the first clamping ring can be contracted and clamped on the first connecting pipe to form a first deformation groove on the first connecting pipe. The pipe connection assembly and the valve structure provided by the application are simple to connect and low in cost.

Description

Technical Field

[0001] This application relates to the field of pipe connection technology, and in particular to a pipe connection assembly and valve structure. Background Technology

[0002] In air conditioning systems, pipe connection assemblies are typically used to connect pipes of predetermined lengths to meet the requirements of media transportation distances and to achieve rapid pipe connection. Currently, pipe connection assemblies mainly include a first pipe, a second pipe, a connector, a connecting sleeve, and a clamping sleeve. The connector and the connecting sleeve are threaded together. The first pipe is welded and fixed to the connector. The second pipe is inserted into the connecting sleeve. During the tightening of the connecting sleeve's threads, a bevel or similar surface is used to cause the clamping sleeve to contract towards the axis, thereby forcing the second pipe to deform. This achieves the connection of the second pipe while ensuring that the second pipe does not move axially under the action of the clamping sleeve.

[0003] However, because the ferrule causes the pipe to deform, the ferrule must maintain a high hardness. At the same time, the contact end between the ferrule and the pipe must be able to produce radial plastic deformation, which requires a thin hardened layer at that point. This places very stringent technical requirements on the ferrule, resulting in a high cost. Utility Model Content

[0004] Therefore, it is necessary to provide a pipeline connection assembly and valve structure that are simple to connect and low in cost.

[0005] This application provides a pipe connection assembly, which includes a connector, a first connecting sleeve, and a first connecting pipe. The connector has a first connecting portion with a first connecting hole. The first connecting pipe is inserted into the first connecting hole. The first connecting sleeve is fitted around the outer periphery of the first connecting pipe and a portion of the first connecting portion, and connects to the first connecting portion. The first connecting portion, the first connecting sleeve, and the first connecting pipe form a first limiting groove. The pipe connection assembly also includes a first retaining ring, which is installed in the first limiting groove and abuts against the first connecting portion, the first connecting sleeve, and the first connecting pipe, respectively. The side of the first connecting sleeve that contacts the first retaining ring... At least one of the wall, the side wall in contact with the first connecting part and the first retaining ring is inclined; wherein, the first retaining ring is provided with a first notch, and the hardness of the first retaining ring is greater than the hardness of the first connecting pipe. When the first connecting sleeve moves toward the first connecting part, the side wall in contact with the first retaining ring can apply force to the first retaining ring, and the direction of the combined force of the first connecting sleeve and the first connecting part on the first retaining ring is set at an angle with the axial direction of the first connecting pipe, so that the portions of the first retaining ring located on both sides of the first notch can approach each other and contract to tighten the first connecting pipe, so as to form a first deformation groove recessed toward its own axial direction on the first connecting pipe.

[0006] In one embodiment, the pipe connection assembly further includes a gasket, which is installed between the end face of the first connection portion and the first retaining ring, and abuts against the first connection portion and the first retaining ring respectively.

[0007] In one embodiment, the pipeline connection assembly further includes a first seal, the inner wall of the first connecting sleeve is recessed to form a first mounting groove, the first seal is installed in the first mounting groove, and the first seal abuts against the outer wall of the first connecting pipe to achieve a soft-seal connection between the first connecting sleeve and the first connecting pipe.

[0008] In one embodiment, the end of the first connecting sleeve abuts against the outer wall of the first connecting portion to achieve a hard seal connection between the first connecting sleeve and the first connecting portion.

[0009] In one embodiment, the inner wall of the first connecting hole is recessed in a direction away from its own axis to form an assembly groove; the pipeline connection assembly further includes a clamp, which is installed in the assembly groove and engages with the first connecting part along the axial direction of the first connecting hole, and the clamp is sleeved on the outer periphery of the first connecting pipe and engages with the first connecting pipe.

[0010] In one embodiment, the clamp includes a main body and barbs. The main body is fitted around the outer periphery of the first connector. One end of the barb is connected to the inner wall of the main body, and the barb at least partially protrudes from the inner wall of the main body and extends toward the axis of the first connector. The barb is serrated, arc-shaped, or triangular.

[0011] In one embodiment, the clamp has an opening, and the portions of the clamp located on both sides of the opening are capable of deforming towards each other in response to external forces.

[0012] In one embodiment, the connector has a second connecting portion located at one end of the connector away from the first connecting portion. The second connecting portion has a second connecting hole. The connector also has a communicating channel, the two ends of which are respectively connected to the first connecting hole and the second connecting hole. The second connecting hole is configured as a smooth hole or a threaded hole.

[0013] In one embodiment, the axis of the first connecting hole and the axis of the second connecting hole are coaxial or at an angle.

[0014] In one embodiment, the second connecting hole is configured as a light hole. The pipeline connection assembly further includes a second connecting sleeve, a second connecting pipe, and a second retaining ring. The second connecting pipe is inserted into the second connecting hole, and the second connecting sleeve is fitted around the outer periphery of the second connecting pipe and a portion of the second connecting part, and is connected to the second connecting part. The second connecting part, the second connecting sleeve, and the second connecting pipe form a second limiting groove. The second retaining ring is installed in the second limiting groove and abuts against the second connecting part, the second connecting sleeve, and the second connecting pipe, respectively. Furthermore, the sidewall of the second connecting sleeve in contact with the second retaining ring, and the sidewall of the second connecting part in contact with the second retaining ring... At least one of the contacting sidewalls is inclined; wherein, the second retaining ring is provided with a second notch, the hardness of the second retaining ring is greater than the hardness of the second connecting pipe, when the second connecting sleeve moves toward the direction of the second connecting part, the sidewall of the second connecting sleeve in contact with the second retaining ring can apply force to the second retaining ring, and the direction of the combined force of the second connecting sleeve and the second connecting part on the second retaining ring is set at an angle with the axial direction of the second connecting pipe, so that the portions of the second retaining ring located on both sides of the second notch can approach each other and contract to tighten the second connecting pipe, so as to form a second deformation groove on the second connecting pipe that is recessed toward its own axial direction.

[0015] This application also provides a valve structure, which includes the above-described pipeline connection assembly, wherein the connector of the pipeline connection assembly forms the valve body of the valve structure.

[0016] Compared with the prior art, the pipeline connection assembly and valve structure provided in this application, during the connection process of the first connecting sleeve, can convert axial force into oblique force through the inclined surface as the first connecting sleeve moves, thereby applying force to the first retaining ring. Furthermore, since the first retaining ring has a first notch, it provides deformation space for the shrinkage of the first retaining ring. Also, there is a hardness difference between the first retaining ring and the first connecting pipe, so when the first retaining ring shrinks, it can cause plastic deformation of the first connecting pipe, thereby forming a first deformation groove with a concave ring structure on the first connecting pipe. The two work together to achieve mechanical interlocking. Simultaneously, the first retaining ring maintains contact with the first connecting part, the first connecting sleeve, and the first connecting pipe without moving, thus ensuring the locking strength between the first retaining ring and the first connecting pipe and preventing the first connecting pipe from moving axially under high pressure and thus detaching from the connector or the first connecting sleeve, effectively improving the reliability of the connection. Therefore, the pipeline connection assembly provided in this application only needs to control the first connecting sleeve to move towards the connector during the connection process to simultaneously improve the pipeline connection strength, without requiring additional processing of the first connecting pipe, effectively improving operational efficiency. Furthermore, the first retaining ring has a simple structure. While ensuring its own hardness, it only needs to be set with a first notch to shrink and deform, thereby effectively reducing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a pipe connection assembly according to an embodiment of this application;

[0019] Figure 2 An exploded view of a pipe connection assembly according to an embodiment provided in this application;

[0020] Figure 3 A cross-sectional view (untightly tightened) of a pipe connection assembly according to an embodiment of this application.

[0021] Figure 4 A cross-sectional view (after tightening) of a pipe connection assembly according to an embodiment provided in this application.

[0022] Figure 5 A cross-sectional view of a pipe connection assembly according to another embodiment provided in this application;

[0023] Figure 6 A cross-sectional view of a pipe connection assembly according to yet another embodiment provided in this application;

[0024] Figure 7 A cross-sectional view of a pipe connection assembly according to another embodiment of this application;

[0025] Figure 8 A schematic diagram of the structure of a clamp according to an embodiment provided in this application;

[0026] Figure 9 A cross-sectional view of a valve structure according to an embodiment provided in this application.

[0027] The symbols in the diagram represent the following meanings:

[0028] 100. Pipeline connection assembly; 10. Connector; 101. First connecting hole; 102. Assembly groove; 103. Second connecting hole; 104. Communicating channel; 11. First connecting part; 111. Sealing cone surface; 12. Second connecting part; 20. First connecting sleeve; 201. First limiting groove; 202. First mounting groove; 21. First sealing element; 22. Corner; 30. First connecting pipe; 301. First deformation groove; 40. First retaining ring; 401. First notch; 50. Gasket; 60. Clamp; 601. Opening; 602. Clearance hole; 61. Main body; 62. Barb; 70. Second connecting sleeve; 701. Second limiting groove; 80. Second connecting pipe; 801. Second deformation groove; 90. Second retaining ring; 200. Valve structure; 210. Valve body; 220. Valve core. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0031] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly 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 and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" 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 "under" 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.

[0033] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0034] In air conditioning systems, pipe connection assemblies are typically used to connect pipes of predetermined lengths to meet the requirements of media transportation distances and to achieve rapid pipe connection. Currently, pipe connection assemblies mainly include a first pipe, a second pipe, a connector, a connecting sleeve, and a clamping sleeve. The connector and the connecting sleeve are threaded together. The first pipe is welded and fixed to the connector. The second pipe is inserted into the connecting sleeve. During the tightening of the connecting sleeve's threads, a bevel or similar surface is used to cause the clamping sleeve to contract towards the axis, thereby forcing the second pipe to deform. This achieves the connection of the second pipe while ensuring that the second pipe does not move axially under the action of the clamping sleeve.

[0035] However, because the ferrule causes the pipe to deform, the ferrule must maintain a high hardness. At the same time, the contact end between the ferrule and the pipe must be able to produce radial plastic deformation, which requires a thin hardened layer at that point. This places very stringent technical requirements on the ferrule, resulting in a high cost.

[0036] Please see Figures 1-9This application provides a pipe connection assembly 100, which includes a connector 10, a first connecting sleeve 20, a first connecting pipe 30, and a second connecting pipe 80. The connector 10 has a first connecting portion 11 and a second connecting portion 12. The first connecting portion 11 has a first connecting hole 101, and the first connecting pipe 30 is inserted into the first connecting hole 101. The first connecting sleeve 20 is sleeved on the outer periphery of the first connecting pipe 30 and a portion of the first connecting portion 11 and is connected to the first connecting portion 11. The second connecting portion 12 is located at the end of the connector 10 away from the first connecting portion 11, and the second connecting portion 12 is used to connect the second connecting pipe 80. It should be noted that the connection between the second connecting portion 12 and the second connecting pipe 80 can be a direct connection or an indirect connection. Preferably, the first connecting sleeve 20 and the first connecting portion 11 are connected by a thread, which is relatively simple. Of course, they can also be connected by snap-fit ​​or welding.

[0037] Furthermore, the first connecting part 11, the first connecting sleeve 20 and the first connecting pipe 30 form a first limiting groove 201. The pipeline connection assembly 100 also includes a first retaining ring 40, which is installed in the first limiting groove 201 and abuts against the first connecting part 11, the first connecting sleeve 20 and the first connecting pipe 30 respectively. At least one of the side wall of the first connecting sleeve 20 that contacts the first retaining ring 40 and the side wall of the first connecting part 11 that contacts the first retaining ring 40 is inclined. The first retaining ring 40 has a first notch 401, and the hardness of the first retaining ring 40 is greater than that of the first connecting pipe 30. When the first connecting sleeve 20 moves toward the first connecting part 11, the side wall of the first connecting sleeve 20 that contacts the first retaining ring 40 can apply force to the first retaining ring 40. The direction of the combined force of the first connecting sleeve 20 and the first connecting part 11 on the first retaining ring 40 is set at an angle to the axial direction of the first connecting pipe 30, so that the parts of the first retaining ring 40 located on both sides of the first notch 401 can approach each other and shrink to tighten the first connecting pipe 30, so as to form a first deformation groove 301 that is recessed toward its own axis on the first connecting pipe 30.

[0038] Understandably, during the connection process of the first connecting sleeve 20, as the first connecting sleeve 20 moves, the axial force can be converted into an oblique force through the inclined surface, thereby applying force to the first retaining ring 40. Furthermore, since the first retaining ring 40 has a first notch 401, the first notch 401 provides deformation space for the contraction of the first retaining ring 40. Also, there is a hardness difference between the first retaining ring 40 and the first connecting pipe 30, so when the first retaining ring 40 contracts, it can cause plastic deformation of the first connecting pipe 30, thereby forming a first deformation groove 301 with a concave ring structure on the first connecting pipe 30. The two work together to achieve mechanical interlocking. Simultaneously, the first retaining ring 40 maintains contact with the first connecting part 11, the first connecting sleeve 20, and the first connecting pipe 30, without moving. Therefore, the locking strength between the first retaining ring 40 and the first connecting pipe 30 can be guaranteed, preventing the first connecting pipe 30 from moving axially under high pressure and thus disengaging from the connecting head 10 or the first connecting sleeve 20, effectively improving the reliability of the connection. Thus, the pipe connection assembly 100 provided in this application only needs to control the first connecting sleeve 20 to move towards the connector 10 during the connection process, which can simultaneously improve the pipe connection strength without requiring additional processing of the first connecting pipe 30, effectively improving operational efficiency. Furthermore, the first retaining ring 40 has a simple structure. While ensuring its own hardness, it only needs to be provided with a first notch 401 to shrink and deform, thereby effectively reducing costs.

[0039] The state of the first connecting sleeve 20 before locking is as follows: Figure 3 As shown, at this time, the side wall of the first connecting pipe 30 that contacts the first retaining ring 40 is set as a straight pipe, and with the locking of the first connecting sleeve 20, at this time, as Figure 4 As shown, the first connecting pipe 30 undergoes plastic deformation under the action of the first retaining ring 40. It is easy to understand that the degree of contraction of the first retaining ring 40 can be achieved by controlling the size of the first notch 401. Furthermore, the hardness of the first retaining ring 40 is greater than the hardness of the first connecting pipe 30. The hardness of the first connecting sleeve 20 and the first connecting portion 11 can be set to be greater than or equal to the hardness of the first retaining ring 40, thereby improving the reliability of the contraction of the first retaining ring 40 and causing the first connecting pipe 30 to deform.

[0040] Specifically, in this embodiment, the sidewall of the first connecting sleeve 20 that contacts the first retaining ring 40 is a conical surface, while the sidewall of the first connecting part 11 that contacts the first retaining ring 40 is the end face of the first connecting part 11, which is set as a plane. This application uses this as an example for specific description. Of course, in other embodiments, it can also be reasonably set according to actual needs, as long as the force of axial movement of the first connecting sleeve 20 can be converted into the force of contraction of the first retaining ring 40.

[0041] To reduce wear on the end of the first connecting portion 11 by the first retaining ring 40, in one embodiment, such as Figure 2As shown, the pipe connection assembly 100 also includes a gasket 50, which is installed between the end face of the first connecting part 11 and the first retaining ring 40, and abuts against the first connecting part 11 and the first retaining ring 40 respectively. Thus, by providing the gasket 50, the service life of the pipe connection assembly 100 is effectively extended.

[0042] In one embodiment, such as Figures 4-7 As shown, the pipeline connection assembly 100 also includes a first sealing element 21. A first mounting groove 202 is formed in the inner wall of the first connecting sleeve 20. The first sealing element 21 is installed in the first mounting groove 202 and abuts against the outer wall of the first connecting pipe 30, thereby creating a soft-seal connection between the first connecting sleeve 20 and the first connecting pipe 30. This improves the sealing effect between the first connecting pipe 30 and the first connecting sleeve 20, preventing leakage of the medium from the gap between them, thus ensuring the safety of the overall structure. Simultaneously, the installation of the first sealing element 21 does not occupy additional space, making the entire pipeline connection assembly 100 more compact and easier to install.

[0043] Furthermore, the end of the first connecting sleeve 20 abuts against the outer wall of the first connecting part 11 to achieve a hard seal connection between the first connecting sleeve 20 and the first connecting part 11. This eliminates the risk of leakage of the medium from the gap between the first connecting sleeve 20 and the first connecting part 11, and the sealing fit between the first connecting sleeve 20 and the first connecting part 11 is relatively simple.

[0044] Specifically, the end of the first connecting sleeve 20 near its own inner cavity has a corner 22, and the outer wall of the first connecting part 11 is provided with a sealing cone surface 111. When the first connecting sleeve 20 is locked, the corner 22 can contact and apply force to the sealing cone surface 111, thereby achieving a hard seal between the first connecting sleeve 20 and the first connecting part 11.

[0045] In one embodiment, such as Figures 3-6 As shown, the inner wall of the first connecting hole 101 is recessed in a direction away from its own axis to form an assembly groove 102. The pipe connection assembly 100 also includes a clamp 60, which is installed in the assembly groove 102 and engages with the first connecting part 11 along the axial direction of the first connecting hole 101. Furthermore, the clamp 60 is sleeved on the outer periphery of the first connecting pipe 30 and engages with the first connecting pipe 30. Thus, when the first connecting pipe 30 is inserted into the first connecting hole 101, the clamp 60 can provide pre-tightening for the first connecting pipe 30, preventing the first connecting pipe 30 from moving, thereby improving the reliability of subsequent connections.

[0046] Specifically, such as Figure 8As shown, the clamp 60 includes a main body 61 and barbs 62. The main body 61 is fitted around the outer periphery of the first connector 30. One end of the barb 62 is connected to the inner wall of the main body 61, and the barb 62 at least partially protrudes from the inner wall of the main body 61 and extends towards the axis of the first connector 30. This facilitates the insertion of the first connector 30, and the barb 62 can cut into the outer wall of the first connector 30, thereby providing a clamping force to the first connector 30 and preventing the first connector 30 from moving along its own axial direction. The clamping force between the barb 62 and the first connector 30 can be controlled by the size of the barb 62 and the elasticity of the material. For example, the larger the size of the barb 62 protruding from the inner wall of the main body 61 and the smaller its elasticity, the greater its clamping force on the first connector 30. To facilitate the insertion of the barb 62 into the first connecting pipe 30, the barb 62 can be serrated, arc-shaped, or triangular. It is easy to understand that when the barb 62 is serrated or triangular, the shape of the barb 62 is sharper and it is easier to cut into the pipe wall. When the shape of the barb 62 is arc-shaped, the barb 62 causes less damage to the pipe wall. In this case, the clamping force can be increased by increasing the size of the barb 62.

[0047] Furthermore, the main body 61 is provided with clearance holes 602, which are correspondingly arranged with barbs 62, and the barbs 62 are connected to the inner wall of one side of the clearance hole 602. This facilitates the deformation of the barbs 62 and prevents them from breaking due to excessive force. In order to ensure the clamping effect of the clamp 60 on the first connecting pipe 30, the number of barbs 62 can be set to multiple, and the multiple barbs 62 are arranged at intervals along the circumference of the main body 61. The number of clearance holes 602 corresponds one-to-one with the number of barbs 62.

[0048] In one embodiment, such as Figure 8 As shown, the clamp 60 has an opening 601, and the portions of the clamp 60 located on both sides of the opening 601 can deform towards each other in response to external forces. Similarly, the opening 601 provides deformation space for the clamp 60 to contract, allowing the clamp 60 to be installed into the assembly slot 102 through the smaller diameter first connecting hole 101, thereby effectively reducing the installation difficulty of the clamp 60 and improving installation efficiency.

[0049] Of course, in other embodiments, the clamp 60 may not be provided on the first connecting portion 11. In this case, as shown in the figure... Figure 7 As shown, the first connecting pipe 30 is fastened only by the first retaining ring 40, making the overall structure simpler.

[0050] In one embodiment, the second connecting part 12 has a second connecting hole 103, and the connector 10 also has a connecting channel 104, the two ends of which are respectively connected to the first connecting hole 101 and the second connecting hole 103. The second connecting pipe 80 can be directly or indirectly connected to the second connecting hole 103, thereby achieving the connection of the entire pipeline.

[0051] Specifically, such as Figure 4 As shown, in this embodiment, the second connecting hole 103 is configured as a light hole, and the second connecting pipe 80 is inserted into the second connecting hole 103. At this time, it can be fixed by connecting with the second connecting part 12 through welding or other means.

[0052] In another embodiment, such as Figure 6 As shown, when the second connecting hole 103 is a smooth hole, the pipeline connection assembly 100 further includes a second connecting sleeve 70 and a second retaining ring 90. The second connecting pipe 80 is inserted into the second connecting hole 103, and the second connecting sleeve 70 is fitted onto the outer periphery of the second connecting pipe 80 and the second connecting portion 12, and is connected to the second connecting portion 12. Here, the second connecting sleeve 70 and the second connecting portion 12 are preferably connected by threads, but welding or snap-fitting can also be used to achieve the connection. The second connecting portion 12, the second connecting sleeve 70, and the second connecting pipe 80 form a second limiting groove 701. The second retaining ring 90 is installed in the second limiting groove 701 and abuts against the second connecting portion 12, the second connecting sleeve 70, and the second connecting pipe 80, respectively. Furthermore, at least one of the sidewalls of the second connecting sleeve 70 and the second retaining ring 90 that contact each other, and the sidewalls of the second connecting portion 12 and the second retaining ring 90 that contact each other, is inclined. The second retaining ring 90 has a second notch. The hardness of the second retaining ring 90 is greater than that of the second connecting pipe 80. When the second connecting sleeve 70 moves towards the second connecting part 12, the sidewall of the second connecting sleeve 70 in contact with the second retaining ring 90 can apply force to the second retaining ring 90. The direction of the combined force of the second connecting sleeve 70 and the second connecting part 12 on the second retaining ring 90 is set at an angle to the axial direction of the second connecting pipe 80, so that the parts of the second retaining ring 90 located on both sides of the second notch can approach each other and contract to tighten the second connecting pipe 80, thereby forming a second deformation groove 801 recessed towards its own axis on the second connecting pipe 80. It can be understood that, similar to the connection method of the first connecting pipe 30, the second connecting pipe 80 only needs to be rotated when connected, making the overall connection simple. Moreover, at this time, the entire pipeline connection assembly 100 does not require welding, which can better adapt to different installation environments. In addition, in this structure, gaskets 50 and clamps 60 can also be correspondingly provided. Of course, in other embodiments, such as Figure 5 As shown, the second connecting hole 103 can also be configured as a threaded hole, which facilitates threaded connection with other connector structures and can also effectively improve the connection speed.

[0053] In one embodiment, the axis of the first connecting hole 101 and the axis of the second connecting hole 103 are coaxially arranged, which facilitates processing and can effectively improve processing efficiency.

[0054] In other embodiments, the axis of the first connecting hole 101 may also be set at an angle to the axis of the second connecting hole 103, thereby achieving a change in the direction of the pipeline and achieving different connection effects. For example, the angle between the axis of the first connecting hole 101 and the axis of the second connecting hole 103 may be set to 90°, 120° or 135°, etc., which will not be listed here.

[0055] This application also provides a valve structure 200, such as Figure 9 As shown, the valve structure 200 includes the aforementioned pipe connection assembly 100, and the connector 10 of the pipe connection assembly 100 forms the valve body 210 of the valve structure 200. The valve structure 200 also includes a valve core 220, which is movably installed within the valve body 210 to control the opening and closing of the first connecting pipe 30 and the second connecting pipe 80.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A pipeline connection assembly, comprising a connector (10), a first connecting sleeve (20), and a first connecting pipe (30), wherein the connector (10) has a first connecting portion (11), the first connecting portion (11) has a first connecting hole (101), the first connecting pipe (30) is inserted into the first connecting hole (101), and the first connecting sleeve (20) is sleeved on a portion of the outer periphery of the first connecting pipe (30) and the first connecting portion (11), and is connected to the first connecting portion (11); Its features are, The first connecting part (11), the first connecting sleeve (20) and the first connecting pipe (30) form a first limiting groove (201). The pipeline connection assembly also includes a first retaining ring (40). The first retaining ring (40) is installed in the first limiting groove (201) and abuts against the first connecting part (11), the first connecting sleeve (20) and the first connecting pipe (30) respectively. At least one of the side wall of the first connecting sleeve (20) that contacts the first retaining ring (40) and the side wall of the first connecting part (11) that contacts the first retaining ring (40) is inclined. The first retaining ring (40) has a first notch (401), and the hardness of the first retaining ring (40) is greater than that of the first connecting pipe (30). When the first connecting sleeve (20) moves toward the first connecting part (11), the side wall of the first connecting sleeve (20) in contact with the first retaining ring (40) can exert force on the first retaining ring (40). The direction of the combined force of the first connecting sleeve (20) and the first connecting part (11) on the first retaining ring (40) is set at an angle to the axial direction of the first connecting pipe (30), so that the parts of the first retaining ring (40) located on both sides of the first notch (401) can approach each other and shrink and tighten the first connecting pipe (30), so as to form a first deformation groove (301) on the first connecting pipe (30) that is recessed toward its own axial direction.

2. The pipeline connection assembly according to claim 1, characterized in that, The pipeline connection assembly also includes a gasket (50), which is installed between the end face of the first connection part (11) and the first retaining ring (40), and respectively abuts against the first connection part (11) and the first retaining ring (40).

3. The pipeline connection assembly according to claim 1, characterized in that, The pipeline connection assembly further includes a first sealing element (21), and the inner wall of the first connecting sleeve (20) is recessed to form a first mounting groove (202). The first sealing element (21) is installed in the first mounting groove (202), and the first sealing element (21) abuts against the outer wall of the first connecting pipe (30) so that the first connecting sleeve (20) and the first connecting pipe (30) are softly sealed together.

4. The pipeline connection assembly according to claim 1, characterized in that, The end of the first connecting sleeve (20) abuts against the outer wall of the first connecting part (11) to make a hard seal connection between the first connecting sleeve (20) and the first connecting part (11).

5. The pipeline connection assembly according to claim 1, characterized in that, The inner wall of the first connecting hole (101) is recessed in a direction away from its own axis to form an assembly groove (102). The pipeline connection assembly also includes a clamp (60), which is installed in the assembly groove (102) and stops with the first connection part (11) along the axial direction of the first connection hole (101). The clamp (60) is sleeved on the outer periphery of the first pipe (30) and engages with the first pipe (30).

6. The pipeline connection assembly according to claim 5, characterized in that, The clamp (60) includes a main body (61) and barbs (62). The main body (61) is fitted around the outer periphery of the first connecting pipe (30). One end of the barb (62) is connected to the inner wall of the main body (61), and the barb (62) protrudes at least partially from the inner wall of the main body (61) and extends toward the axis of the first connecting pipe (30). The barbs (62) are serrated, arc-shaped, or triangular.

7. The pipe connection assembly according to claim 5, characterized in that, The clamp (60) has an opening (601), and the portions of the clamp (60) located on both sides of the opening (601) can deform to move closer to each other in response to external forces.

8. The pipe connection assembly according to any one of claims 1-7, characterized in that, The connector (10) has a second connecting part (12), which is located at one end of the connector (10) away from the first connecting part (11). The second connecting part (12) has a second connecting hole (103). The connector (10) also has a connecting channel (104), which connects the first connecting hole (101) and the second connecting hole (103) to its two ends respectively. The second connecting hole (103) is configured as a smooth hole or a threaded hole.

9. The pipe connection assembly according to claim 8, characterized in that, The axis of the first connecting hole (101) and the axis of the second connecting hole (103) are coaxial or at an angle.

10. The pipe connection assembly according to claim 9, characterized in that, The second connecting hole (103) is configured as a light hole. The pipeline connection assembly also includes a second connecting sleeve (70), a second connecting pipe (80), and a second retaining ring (90). The second connecting pipe (80) is inserted into the second connecting hole (103). The second connecting sleeve (70) is sleeved on part of the outer periphery of the second connecting pipe (80) and the second connecting part (12) and is connected to the second connecting part (12). The second connecting part (12), the second connecting sleeve (70) and the second connecting pipe (80) form a second limiting groove (701). The second retaining ring (90) is installed in the second limiting groove (701) and abuts against the second connecting part (12), the second connecting sleeve (70) and the second connecting pipe (80) respectively. At least one of the side wall of the second connecting sleeve (70) that contacts the second retaining ring (90) and the side wall of the second connecting part (12) that contacts the second retaining ring (90) is inclined. The second retaining ring (90) has a second notch. The hardness of the second retaining ring (90) is greater than that of the second connecting pipe (80). When the second connecting sleeve (70) moves toward the direction of the second connecting part (12), the side wall of the second connecting sleeve (70) in contact with the second retaining ring (90) can exert force on the second retaining ring (90). The direction of the combined force of the second connecting sleeve (70) and the second connecting part (12) on the second retaining ring (90) is set at an angle to the axial direction of the second connecting pipe (80), so that the parts of the second retaining ring (90) located on both sides of the second notch can approach each other and shrink and tighten the second connecting pipe (80), so as to form a second deformation groove (801) that is recessed toward its own axis on the second connecting pipe (80).

11. A valve structure, characterized in that, Includes a pipe connection assembly as described in any one of claims 1-10, wherein the connector (10) of the pipe connection assembly forms the valve body (210) of the valve structure.

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