Plug-in assembly

Abstract

The utility model discloses a plug-in assembly, and belongs to the technical field of valves. The plug-in assembly comprises a first connecting joint, a second connecting joint and a limiting clamping jaw, the first connecting joint is formed at one end of the first component, and a first limiting groove is formed in the outer wall of the first connecting joint; the second connecting joint is formed at one end of the second component, the first connecting joint is arranged outside the second connecting joint in a sealing and sleeving mode, and a second limiting groove is formed in the outer wall of the second connecting joint; the first connecting joint and the second connecting joint which are connected in an inserted mode are sleeved with the limiting clamping jaw, the limiting clamping jaw comprises a clamping jaw body, the clamping jaw body comprises a first limiting jaw and a second limiting jaw which are arranged in a spaced mode and connected with each other, the first limiting jaw is clamped in the first limiting groove, and the second limiting jaw is clamped in the second limiting groove. The plug-in assembly can solve the technical problems that existing valves are connected through double nipple connectors and raw material belts, leakage is prone to occurring, mounting and dismounting are tedious, and the mounting angle is inaccurate.

Description

Technical Field

[0001] The utility model relates to the technical field of valve components, in particular to a plug-in assembly. Background Art

[0002] Valves are widely used in various industries. In order to meet the needs of complex working conditions, it is sometimes necessary to use two or more valves in series. In the water industry, multiple valves (such as ball valves, gate valves or pressure reducing valves, etc.) are usually installed on the front and rear sides of the water meter installed in the water meter box at the front end of the household. During installation, there are situations where two valves are connected in series. For example: the gate valve and check valve on the front side of the water meter are connected in series. When the two are connected, a threaded joint is usually set between the gate valve and the check valve. One end of the threaded joint is threadedly connected to the gate valve, and the other end of the threaded joint is threadedly connected to the check valve. However, threaded connections usually have the following problems during assembly and disassembly:

[0003] 1) The installation process is cumbersome. First, to ensure a good seal, threaded connections typically require wrapping with raw tape during installation. If the tape is wrapped too thickly, the connection won't mate, while if it's wrapped too thinly, leakage is likely to occur. Furthermore, connecting the two ends of the threaded joint to the valves on either side creates two leak points in the entire valve assembly, further increasing the risk of leakage.

[0004] 2) Low installation efficiency and inconvenient disassembly. In order to ensure a tight fit, installation tools such as wrenches must be used during the actual installation process. However, the installation space of the entire pipeline is very compact, which increases the difficulty of operation and inconveniences in maintenance.

[0005] 3) Inaccurate installation angle. Since the two ends of the threaded connector are connected to the valves on both sides, when they are tightened together, the angle between the two valves often deviates from the expected angle.

[0006] Therefore, there is an urgent need to provide a plug-in assembly to solve the above problems. Utility Model Content

[0007] The present invention aims to solve or at least alleviate some or all of the above problems. To this end, the present invention aims to provide a plug-in assembly that solves the technical problems of existing valve connections using threaded connectors and raw tape, which are prone to leakage, are cumbersome to install and disassemble, and have inaccurate installation angles.

[0008] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0009] A plug-in assembly for connecting a first component and a second component, the plug-in assembly comprising:

[0010] A first connecting joint is formed at one end of the first component, and a first limiting groove is provided on an outer wall of the first connecting joint;

[0011] A second connecting joint is formed at one end of the second component, the first connecting joint sealing sleeve is arranged outside the second connecting joint, and a second limiting groove is provided on the outer wall of the second connecting joint;

[0012] The limiting claw is sleeved on the outside of the first connecting joint and the second connecting joint that are plugged into each other. The limiting claw includes a claw body. The claw body includes a first limiting claw and a second limiting claw that are spaced apart and connected. The first limiting claw is clamped in the first limiting groove, and the second limiting claw is clamped in the second limiting groove.

[0013] As a preferred solution, a first limiting protrusion is provided on the outer wall of the first connecting joint, a second limiting protrusion is provided on the outer wall of the second connecting joint, and a limiting accommodating portion is also provided on the limiting claw, and the first limiting protrusion and the second limiting protrusion are both accommodated in the limiting accommodating portion.

[0014] As a preferred solution, the claw body is an arc-shaped structure, and a receiving groove is provided on the inner side of the claw body, the receiving groove forms the position-limiting receiving portion, and the first position-limiting claw and the second position-limiting claw are formed on both sides of the receiving groove respectively; or

[0015] The claw body is an arc-shaped structure, and is provided with a through hole that penetrates radially along the first connecting joint. The through hole forms the limiting accommodation portion, and the first limiting claw and the second limiting claw are formed on both sides of the through hole respectively.

[0016] As a preferred solution, the number of the claw bodies is two, the two claw bodies are symmetrically arranged, and the first ends of the two claw bodies are connected by a connecting part, and the second ends of the two claw bodies are spaced apart to form a gap for the first connecting joint and the second connecting joint to pass through.

[0017] As a preferred solution, the notch is flared.

[0018] As a preferred solution, the claw body is provided with guiding inclined surfaces at both ends along the extension direction of the position-limiting accommodation portion.

[0019] As a preferred solution, the first limiting protrusion is an annular protrusion or an arc-shaped protrusion; and / or the second limiting protrusion is an annular protrusion or an arc-shaped protrusion.

[0020] As a preferred solution, both the first limiting groove and the second limiting groove are annular grooves.

[0021] As a preferred solution, the first component is a first valve or a first pipeline; and / or the second component is a second valve or a second pipeline.

[0022] As a preferred solution, the first valve is a pressure reducing valve, a check valve, a ball valve, a gate valve or a stop valve; and / or

[0023] The second valve is a pressure reducing valve, a check valve, a ball valve, a gate valve or a stop valve.

[0024] The beneficial effects of the present invention are:

[0025] The plug-in assembly provided by the present invention can be used for stable connection between a first valve and a second valve. When connecting, the second connecting joint can be inserted into the first connecting joint first; after being plugged into place, the limiting claw is sleeved on the outside of the plugged first connecting joint and the second connecting joint. At this time, the first limiting claw is clamped in the first limiting groove, and the second limiting claw is clamped in the second limiting groove, thereby playing the role of axially limiting the first valve and the second valve, and preventing the two from being separated during use. The plug-in assembly omits the threaded joint in the prior art, and the first valve and the second valve can be directly plugged in and docked, which simplifies the assembly process, reduces the difficulty of assembly, and can reduce the leakage points at the connection position to reduce the probability of leakage; in addition, the plugged first valve and the second valve can also rotate relative to each other before the limiting claw is sleeved to adjust the installation angle between the two, thereby ensuring that the two can be accurately installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 This is a structural diagram of the valve connection structure provided in Example 1 of the present utility model;

[0028] Figure 2 This is a partial structural diagram of the first valve provided in Example 1 of the present utility model;

[0029] Figure 3 This is a cross-sectional schematic diagram of the first valve provided in Example 1 of the present utility model;

[0030] Figure 4 This is a structural diagram of the second valve provided in Example 1 of the present utility model;

[0031] Figure 5 This is a cross-sectional schematic diagram of the second valve provided in Example 1 of the present utility model;

[0032] Figure 6 This is a schematic cross-sectional view of the valve connection structure provided in the first embodiment of the present invention;

[0033] Figure 7 yes Figure 6 A local enlarged view at point A;

[0034] Figure 8 It is a structural schematic diagram of the limiting claw provided in Example 1 of the utility model.

[0035] Reference numerals:

[0036] 100, first valve; 110, first valve body; 120, first connecting joint; 121, first limiting protrusion; 122, first limiting groove;

[0037] 200, second valve; 210, second valve body; 220, second connecting joint; 221, second limiting protrusion; 222, second limiting groove; 223, mounting groove;

[0038] 300, limit claw; 310, claw body; 3101, first end; 3102, second end; 3103, notch; 311, first limit claw; 312, second limit claw; 313, limit accommodating portion; 314, guide slope; 320, connecting portion;

[0039] 400. Seals. DETAILED DESCRIPTION

[0040] Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0041] In this utility model, the terms "comprises," "includes," "has," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0042] In this utility model, the term "and / or" describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this utility model generally indicates that the related objects are in an "and / or" relationship.

[0043] In this utility model, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the presence of an intermediary, while an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may also include electrical connections or couplings.

[0044] In the present invention, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not employ relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0045] In the present invention, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0046] In the present invention, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front, and lower back, etc.

[0047] The present invention provides a plug-in assembly, which is used to connect a first component and a second component. Specifically, the plug-in assembly can be used for pipeline connection, wherein the first component is a first pipeline to be connected, and the second component is a second pipeline to be connected; the plug-in assembly can also be used for connecting valves and pipelines, wherein the first component is a pipeline to be connected, and the second component is a valve to be connected; the plug-in assembly can also be used for valve connection, wherein the first component is a first valve to be connected, and the second component is a second valve to be connected. It should be noted that the present invention does not limit the specific structure and model of the above-mentioned valves, which can be pressure reducing valves, check valves, gate valves, ball valves, stop valves, etc.

[0048] For ease of understanding, the plug-in assembly provided by the present invention is described in detail below using two connected valves as an example through multiple embodiments.

[0049] Example 1

[0050] Figure 1 A structural schematic diagram of the valve connection structure provided in this embodiment is shown. Figure 2 FIG. 1 shows a partial structural diagram of the first valve 100 provided in this embodiment. Figure 3 FIG. 1 shows a schematic cross-sectional view of the first valve 100 provided in this embodiment. Figure 4 FIG. 2 shows a partial structural diagram of the second valve 200 provided in this embodiment. Figure 5 FIG. 2 shows a cross-sectional view of the second valve 200 provided in this embodiment. Figure 1-Figure 5 As shown, this embodiment provides a plug-in assembly for connecting a first component (first valve 100) and a second component (second valve 200). Figure 3 As the dotted line in FIG, the first valve 100 includes a first valve body 110 and a first connecting joint 120 connected to each other; Figure 5The second valve 200 includes a second valve body 210 and a second connecting joint 220. When connected, the first connecting joint 120 is sealed over the second connecting joint 220, so that the first connecting joint 120 and the second connecting joint 220 are connected and the media inside the first valve 100 and the second valve 200 can flow between them.

[0051] For the convenience of description, the connected first valve 100 and the second valve 200 are referred to as a valve connection structure hereinafter.

[0052] Figure 6 A schematic cross-sectional structural diagram of the plug-in assembly provided in this embodiment is shown. Figure 7 Shown Figure 6 A partial enlarged view of point A. Figure 8 FIG. 3 shows a schematic structural diagram of the position limiting claw 300 provided in this embodiment. Figure 6-Figure 8 and combined Figure 3 、 Figure 5 As shown, the plug-in assembly also includes a limiting claw 300, and a first limiting groove 122 is provided on the outer wall of the first connecting joint 120; a second limiting groove 222 is provided on the outer wall of the second connecting joint 220; the limiting claw 300 is sleeved on the outside of the first connecting joint 120 and the second connecting joint 220 that are plugged in, and the limiting claw 300 includes a claw body 310, and the claw body 310 includes a first limiting claw 311 and a second limiting claw 312 that are spaced and connected, the first limiting claw 311 is clamped in the first limiting groove 122, and the second limiting claw 312 is clamped in the second limiting groove 222.

[0053] The plug-in assembly provided in this embodiment can be used to stably connect the first valve 100 and the second valve 200. During connection, the second connecting joint 220 can be first inserted into the first connecting joint 120. After the connection is in place, the limiting claw 300 is then sleeved over the first and second connecting joints 120 and 220. At this time, the first limiting claw 311 is engaged with the first limiting groove 122, and the second limiting claw 312 is engaged with the second limiting groove 222, thereby axially limiting the first valve 100 and the second valve 200, preventing them from separating during use. The plug-in assembly omits the threaded joint in the prior art, and the first valve 100 and the second valve 200 can be directly plugged in and docked, which simplifies the assembly process, reduces the assembly difficulty, and can reduce the leakage points at the connection position to reduce the probability of leakage. In addition, the plug-in first valve 100 and the second valve 200 can also rotate relative to each other before the limit clamp 300 is installed to adjust the installation angle between the two, thereby ensuring that the two can be accurately installed.

[0054] Optionally, both the first limiting groove 122 and the second limiting groove 222 are annular grooves. This design not only facilitates processing, but also allows the first and second connecting joints 120 and 220 to rotate 360° relative to each other after the limiting claw 300, the first connecting joint 120, and the second connecting joint 220 are assembled, so as to adjust the insertion angle between the first valve 100 and the second valve 200, thereby ensuring the performance of the entire valve connection structure.

[0055] like Figure 2 、 Figure 4 and Figure 7 As shown, a first limiting protrusion 121 is provided on the outer wall of the first connecting joint 120, and a second limiting protrusion 221 is provided on the outer wall of the second connecting joint 220. A limiting accommodation portion 313 is also provided on the limiting claw 300, and both the first limiting protrusion 121 and the second limiting protrusion 221 are accommodated in the limiting accommodation portion 313. By providing the limiting accommodation portion 313 on the limiting claw 300, and providing the first limiting protrusion 121 and the second limiting protrusion 221 on the first connecting joint 120 and the second connecting joint 220, respectively, which can cooperate with the limiting accommodation portion 313, the first limiting claw 311 and the first limiting groove 122, which are engaged, and the second limiting claw 312 and the second limiting groove 222, which are engaged, can cooperate to achieve a dual limiting effect, further ensuring the stability of the connection between the first valve 100 and the second valve 200.

[0056] like Figure 3 、 Figure 5 、 Figure 7 and Figure 8 As shown, in this embodiment, the claw body 310 is an arc-shaped structure. A through-hole extending radially through the first connecting joint 120 is provided on the claw body 310. This through-hole forms the aforementioned position-limiting accommodating portion 313. The first position-limiting claw 311 and the second position-limiting claw 312 are formed on either side of the through-hole. This design facilitates the processing of the position-limiting claw 300. Operators only need to machine a through-hole extending radially through the arc-shaped structure to simultaneously form the first position-limiting claw 311, the second position-limiting claw 312, and the position-limiting accommodating portion 313, which is convenient and quick.

[0057] Optionally, there are two claw bodies 310, symmetrically arranged. The first ends 3101 of the two claw bodies 310 are connected by a connecting portion 320, and the second ends 3102 of the two claw bodies 310 are spaced apart to form a notch 3103 for the first and second connecting joints 120, 220 to pass through. Providing the notch 3103 between the second ends 3102 of the two claw bodies 310 facilitates installation of the limiting claw 300. An operator simply holds the connecting portion 320 and aligns the notch 3103 of the limiting claw 300 with the first and second limiting protrusions 121, 221, for insertion. It is understood that the limiting claw 300 should be made of an elastic material to allow sufficient deformation when inserted into the valve connection structure. Once assembled, the limiting claw 300 can tightly clamp the valve connection structure due to its own elasticity, further ensuring the stability of the valve connection structure.

[0058] Optionally, the notch 3103 formed between the second ends 3102 of the two claw bodies 310 is flared to facilitate insertion into the first connecting joint 120 and the second connecting joint 220. Specifically, the inner side surfaces of the second ends 3102 gradually tilt outward in a direction away from the center of the limiting claw 300 to form a flared notch 3103 between the two second ends 3102.

[0059] like Figure 8 As shown, the connecting portion 320 is U-shaped and protrudes in a direction away from the center of the limiting claw 300, so that the operator can hold the connecting portion 320 and improve the efficiency of disassembly and assembly.

[0060] like Figure 2 、 Figure 4 and Figure 8 As shown, in this embodiment, both the first limiting protrusion 121 and the second limiting protrusion 221 are annular protrusions for ease of processing. Furthermore, the claw body 310 is provided with guide slopes 314 at both ends along the extension direction of the limiting accommodating portion 313. The provision of the guide slopes 314 on the claw body 310 provides clearance for the annular first limiting protrusion 121 and the second limiting protrusion 221. After the limiting claw 300 is installed on the first and second connecting joints 120, 220, the first and second connecting joints 120, 220 can still rotate relative to each other, thereby adjusting the installation angle between the first valve 100 and the second valve 200.

[0061] Continue as Figure 5 and Figure 7As shown, to achieve a sealed installation between the second connecting joint 220 and the first connecting joint 120, at least one sealing member 400 is further provided between the first connecting joint 120 and the second connecting joint 220. The provision of the sealing member 400 can prevent the fluid medium in the first valve 100 and the second valve 200 from leaking through the gap between the first connecting joint 120 and the second connecting joint 220.

[0062] In this embodiment, there is only one seal 400, which can ensure sealing between the two while reducing the number of seals 400, thereby reducing processing costs. The seal 400 is a rubber sealing ring, which has good sealing effect and low cost. It should be noted that this embodiment does not limit the number of seals 400, and the number of seals 400 can also be two, three, four, five, or even more.

[0063] To ensure the stability of the installation of the seal 400, in this embodiment, the outer wall of the second connecting joint 220 is provided with a mounting groove 223 for mounting the seal 400, thereby preventing the seal 400 from falling off or shifting. Of course, in other embodiments, the mounting groove 223 can also be provided on the inner wall of the first connecting joint 120 to mount the seal 400, which can also achieve the above-mentioned effect.

[0064] Example 2

[0065] This embodiment provides a plug-in assembly, the specific structure of which is substantially the same as that of the plug-in assembly in the first embodiment, except that the structure of the position-limiting accommodation portion 313 is different.

[0066] refer to Figure 8 In this embodiment, the claw body 310 has an arc-shaped structure. A receiving groove is provided on the inner side of the claw body 310, forming the aforementioned position-limiting receiving portion 313. The first position-limiting claw 311 and the second position-limiting claw 312 are formed on either side of the receiving groove. In other words, the position-limiting receiving portion 313 in this embodiment extends along the circumference of the first connecting joint 120 (and also the circumference of the second connecting joint 220), but does not penetrate radially along the first connecting joint 120. This arrangement not only limits the position of the first and second connecting joints 120, 220, but also protects portions of the outer walls of the first and second connecting joints 120, 220, from wear.

[0067] Example 3

[0068] This embodiment provides a plug-in assembly, the specific structure of which is substantially the same as that of the plug-in assembly in the first embodiment, except that the shapes of the first limiting protrusion 121 and the second limiting protrusion 221 are different.

[0069] refer to Figure 2 、 Figure 4 as well as Figure 8 In some embodiments, both the first limiting protrusion 121 and the second limiting protrusion 221 are arc-shaped protrusions. In one example, the arc length of the arc-shaped protrusion can be set to be equal to the arc length of the limiting accommodating portion 313, so that the first limiting protrusion 121 and the second limiting protrusion 221 can be precisely accommodated in the limiting accommodating portion 313. It is understood that after the plug assembly is assembled, the first connecting joint 120 and the second connecting joint 220 cannot rotate relative to each other. Therefore, the installation angle of the first connecting joint 120 and the second connecting joint 220 should be adjusted before installing the limiting claw 300. In another example, the arc length of the arc-shaped protrusion can be set to be smaller than the arc length of the limiting accommodating portion 313, so that the installation angle of the first connecting joint 120 and the second connecting joint 220 can be slightly adjusted after the plug assembly is assembled.

[0070] In other embodiments, one of the first limiting protrusion 121 and the second limiting protrusion 221 may be an arc-shaped protrusion and the other an annular protrusion, which can also achieve the above-mentioned effect. It is understood that the arc length of the arc-shaped protrusion can also be set to be equal to the arc length of the limiting accommodating portion 313, or less than the arc length of the limiting accommodating portion 313, and this embodiment is not limited to this.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. A plug assembly for connecting a first component and a second component, characterized in that: The plug-in assembly comprises: A first connection joint (120) is formed at one end of the first component, and a first limiting groove (122) is provided on an outer wall of the first connection joint (120); A second connecting joint (220) is formed at one end of the second component, the first connecting joint (120) is sealed and sleeved outside the second connecting joint (220), and a second limiting groove (222) is provided on the outer wall of the second connecting joint (220); A limiting claw (300) is sleeved on the first connecting joint (120) and the second connecting joint (220) that are plugged into each other. The limiting claw (300) includes a claw body (310). The claw body (310) includes a first limiting claw (311) and a second limiting claw (312) that are spaced apart and connected to each other. The first limiting claw (311) is engaged in the first limiting groove (122), and the second limiting claw (312) is engaged in the second limiting groove (222).

2. The plug assembly according to claim 1, characterized in that A first limiting protrusion (121) is provided on the outer wall of the first connecting joint (120), a second limiting protrusion (221) is provided on the outer wall of the second connecting joint (220), and a limiting accommodation portion (313) is also provided on the limiting claw (300), and the first limiting protrusion (121) and the second limiting protrusion (221) are both accommodated in the limiting accommodation portion (313).

3. The plug assembly according to claim 2, characterized in that The clamping claw body (310) is an arc-shaped structure, and a receiving groove is provided on the inner side of the clamping claw body (310), the receiving groove forms the position-limiting receiving portion (313), and the first position-limiting claw (311) and the second position-limiting claw (312) are formed on both sides of the receiving groove respectively; or The claw body (310) is an arc-shaped structure, and a through hole is provided on the claw body (310) which penetrates radially along the first connecting joint (120), the through hole forming the limiting accommodation portion (313), and the first limiting claw (311) and the second limiting claw (312) are formed on both sides of the through hole respectively.

4. The plug assembly according to claim 3, characterized in that There are two claw bodies (310), the two claw bodies (310) are symmetrically arranged, and the first ends (3101) of the two claw bodies (310) are connected by a connecting portion (320), and the second ends (3102) of the two claw bodies (310) are spaced apart to form a gap (3103) for the first connecting joint (120) and the second connecting joint (220) to pass through.

5. The plug assembly according to claim 4, characterized in that The notch (3103) is flared.

6. The plug assembly according to claim 3, characterized in that The claw body (310) is provided with guiding inclined surfaces (314) at both ends along the extension direction of the position-limiting accommodation portion (313).

7. The plug assembly according to claim 2, characterized in that The first limiting protrusion (121) is an annular protrusion or an arc-shaped protrusion; and / or the second limiting protrusion (221) is an annular protrusion or an arc-shaped protrusion.

8. The plug assembly according to claim 1, characterized in that The first limiting groove (122) and the second limiting groove (222) are both annular grooves.

9. The plug assembly according to any one of claims 1 to 8, characterized in that: The first component is a first valve (100) or a first pipeline; and / or the second component is a second valve (200) or a second pipeline.

10. The plug assembly according to claim 9, characterized in that: The first valve (100) is a pressure reducing valve, a check valve, a ball valve, a gate valve or a stop valve; and / or The second valve (200) is a pressure reducing valve, a check valve, a ball valve, a gate valve or a stop valve.

Images