Plug-in type structure

Abstract

The utility model discloses a plug-in type structure which can solve the problem that installation is tedious in the assembling process in the prior art. The plug-in type structure comprises a first pipeline component, a second pipeline component and a screw, a first connector is formed on one side of the first pipeline component, a threaded hole is formed in the first connector, and the threaded hole penetrates through the inner wall of the first connector; a second connector is formed on one side of the second pipeline component and inserted into the first connector, and a limiting part corresponding to the threaded hole is formed on the outer surface of the second connector. The screw is used for being screwed and fixed to the threaded hole, and the end of the screw penetrates out of the threaded hole and is limited in the limiting part at the position where the screw is screwed to the threaded hole.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection technology, and in particular to a plug-in structure that enables quick installation of two pipeline components. Background Technology

[0002] A pipeline is a device used to transport gases, liquids, or fluids containing solid particles. A pipeline can connect multiple pipeline components, including but not limited to valves, pipes, and pipe fittings. Within a single pipeline, it is often necessary to connect valves to valves, pipes to valves, and pipes to pipes. There are various connection methods and structures for pipelines; a common connection structure is to thread the joints of two pipeline components.

[0003] While the aforementioned structure is relatively mature, it suffers from the following technical problems:

[0004] First, the installation is cumbersome. To ensure a good seal, PTFE tape is usually wrapped around the threaded connection during installation. If the tape is wrapped too thickly, it will not fit properly; if it is wrapped too thinly, leakage will easily occur. In addition, to ensure a tight fit, the above connection method requires the use of tools such as wrenches during actual installation. When the installation space is limited, this often increases the difficulty of operation and significantly affects the installation efficiency.

[0005] 2. Uncertain installation orientation. During the rotational installation process, after the valves are tightened together, their orientation often deviates from the expected angle. Utility Model Content

[0006] This utility model provides a plug-in structure, the purpose of which is to overcome the problem of cumbersome installation in the assembly process of the prior art.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A plug-in structure includes a first conduit component, a second conduit component, and a screw, wherein: one side of the first conduit component forms a first connector, the first connector has a threaded hole that penetrates the inner wall of the first connector; one side of the second conduit component forms a second connector, the second connector is inserted into the first connector, and the outer surface of the second connector has a limiting portion corresponding to the threaded hole; the screw is used to tighten and fix it to the threaded hole, and when the screw is tightened into the threaded hole, the end of the screw protrudes from the threaded hole and is limited within the limiting portion.

[0009] As an optional technical solution, the limiting part is a limiting groove formed on the outer surface of the second connector. The limiting groove, in conjunction with the screw, ensures the stability of the connection between the two pipeline components.

[0010] As an optional technical solution, a limiting groove is formed around the second connector. The limiting groove around the second connector facilitates manufacturing and processing, and allows the screw to rotate around the limiting groove. Thus, even after the first and second pipeline components are connected, they can still rotate to adjust different angles to adapt to different usage scenarios. This allows both the first and second pipeline components to be installed in the expected orientation, making them more flexible and convenient to use.

[0011] As an optional technical solution, the limiting groove is perpendicular to the central axis of the second connector. This setting of the limiting groove ensures that no axial displacement occurs when the first and second pipeline components are rotated to adjust their angles, and also makes it easier to machine threaded holes on the first connector to correspond to the limiting groove, thus facilitating production and processing.

[0012] As an optional technical solution, the end of the screw abuts against the bottom surface of the limiting groove. After the screw abuts against the bottom surface of the limiting groove, it can be pressed and positioned to ensure a tight installation.

[0013] As an optional technical solution, the limiting part is a limiting hole formed on the outer surface of the second connector. The limiting hole can simultaneously perform axial and radial positioning of the first pipeline component and the second pipeline component, resulting in more accurate positioning, and the limiting hole is also very simple to process.

[0014] As an optional technical solution, the first connector has multiple threaded holes, which are evenly arrayed along the circumference of the first connector. The multi-point array of threaded holes ensures more balanced stress distribution after the first and second pipeline components are connected, and also guarantees a stable connection.

[0015] As an optional technical solution, one or more sealing rings are fitted onto the outer surface of the second connector, with the sealing rings protruding from the outer surface of the second connector. At least one sealing ring is disposed between the outer end of the second connector and the limiting part. By fitting the sealing rings onto the surface of the second connector, the sealing performance between the second connector and the first connector can be ensured, and the sealing rings are easy to install.

[0016] As an optional technical solution, the first pipeline component and / or the second pipeline component is a valve. The orientation of the valve during installation is very important; improper installation can even cause the valve to malfunction. Therefore, this plug-in structure ensures that the valves can always be installed in the expected orientation.

[0017] As an optional technical solution, the valve can be any one of the following: gate valve, ball valve, globe valve, filter valve, or pressure reducing valve.

[0018] The beneficial effects of this utility model are:

[0019] According to the plug-in structure provided by this utility model, the first connector of the first pipeline component and the second connector of the second pipeline component are plugged in to achieve radial limiting of the first and second connectors. Furthermore, a screw is installed from the side for further limiting, and the screw can be simultaneously fixed in both the threaded hole and the limiting part, thereby further limiting the axial positioning of the first and second connectors, facilitating quick disassembly and installation. The plug-in points of the first connector of the first pipeline component and the second connector of the second pipeline component do not require threads, which not only facilitates the design of the sealing structure but also allows for easy disassembly and assembly even in space-constrained environments, reducing valve maintenance and replacement time and labor costs. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a plug-in structure provided in the first embodiment of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the first connector provided in the first embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the second connector provided in the first embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a second connector provided in the second embodiment of this utility model.

[0024] Figure 5 This is a cross-sectional structural diagram of a plug-in structure provided in the second embodiment of this utility model.

[0025] Figure 6 This is an axial cross-sectional schematic diagram of a plug-in structure provided in the third embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100 - First piping component; 200 - Second piping component;

[0028] 1-First connector; 11-Threaded hole; 2-Second connector; 21-Limiting part; 211-Limiting groove; 2111-Bottom surface of limiting groove; 212-Limiting hole; 3-Screw; 4-Sealing ring; 41-First sealing ring; 42-Second sealing ring. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 includes the first feature 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.

[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] First Embodiment

[0034] Figure 1 This embodiment provides a schematic diagram of the overall structure of a plug-in structure. (See diagram below.) Figure 1 As shown, the plug-in structure includes a first conduit component 100, a second conduit component 200, and a screw 3.

[0035] One side of the first pipeline component 100 is formed as a first connector 1. Figure 2 This is a structural schematic diagram of the first connector 1 provided in this embodiment, combined with... Figure 1 and Figure 2The first pipeline component 100 may have one or more connectors, wherein the connector for communicating with the second pipeline component 200 is the first connector 1. The first connector 1 has a threaded hole 11 that penetrates the inner wall of the first connector 1. There may be one or more threaded holes 11. In some preferred embodiments, the first connector 1 has multiple threaded holes 11 that are evenly arrayed around the circumference of the first connector 1. Further, the first connector 1 may have four threaded holes 11 that are evenly arrayed around the circumference of the first connector 1, thereby symmetrically limiting the first connector 1 and the second connector 2 from four directions, so that the force is more balanced after the first pipeline component 100 and the second pipeline component 200 are connected, and the connection between the first connector 1 and the second connector 2 is also guaranteed to be stable.

[0036] One side of the second conduit component 200 is formed as a second connector 2. Similarly, the second conduit component 200 may have one or more connectors, wherein the connector used for communicating with the first conduit component 100 is the second connector 2. Figure 3 This is a schematic diagram of the structure of the second connector 2 provided in this embodiment, as shown below. Figure 3 As shown, the second connector 2 is inserted into the first connector 1. This insertion allows the first connector 1 and the second connector 2 to be radially positioned at their upper limits, and the insertion structure also allows for axial overlap between the first connector 1 and the second connector 2, resulting in better sealing. The outer surface of the second connector 2 has a limiting portion 21 corresponding to the threaded hole 11. Figure 3 The example shown illustrates a case where the limiting part 21 is formed as a limiting groove 211, but the present invention is not limited to this. The limiting part 21 can be a limiting hole, a limiting groove, or a snap-fit ​​structure, which is not limited here. The screw 3 is used to tighten and fix it to the threaded hole 11. When the screw 3 is tightened in the threaded hole 11, the end of the screw 3 passes through the threaded hole 11 and is limited in the limiting part 21, so that the screw 3 can be fixed in both the threaded hole and the limiting part 21 at the same time, thereby realizing the relative fixation of the first connector 1 and the second connector 2.

[0037] It should be noted that those skilled in the art will understand that the first pipeline component 100 and the second pipeline component 200 can be any structured pipeline component with a joint, such as a pipe, adapter, valve, water meter, etc., and are not limited thereto. The accompanying drawings illustrate an example where the first pipeline component 100 and the second pipeline component 200 are formed as an adapter, but the present invention is not limited thereto. Simple substitutions of the types of the first pipeline component 100 and the second pipeline component 200 also fall within the protection scope of the present invention.

[0038] Specifically, in the plug-in structure provided in this embodiment, when assembling and connecting the first connector 1 and the second connector 2, the second connector 2 is first inserted into the first connector 1. When it reaches the predetermined installation position, the threaded hole 11 of the first connector 1 and the limiting part 21 of the second connector 2 correspond radially. Then, the screw 3 is screwed into the threaded hole 11 of the first connector 1. When the first connector 1 is screwed in and installed, the end of the screw 3 falls into the limiting part 21, thereby achieving relative fixation of the first connector 1 and the second connector 2.

[0039] In this embodiment, the first connector 1 of the first pipeline component 100 and the second connector 2 of the second pipeline component 200 are inserted into each other, which enables radial limiting of the first connector 1 and the second connector 2. Furthermore, a screw 3 is installed from the side for further limiting. The screw 3 can be simultaneously fixed in the threaded hole 11 and the limiting part 21, thereby further limiting the axial positioning of the first connector 1 and the second connector 2, facilitating quick disassembly and installation. The insertion points of the first connector 1 of the first pipeline component 100 and the second connector 2 of the second pipeline component 200 do not require threads, which not only facilitates the design of the sealing structure but also allows for easy disassembly and assembly even in space-constrained environments, reducing valve maintenance and replacement time and labor costs.

[0040] Second Embodiment

[0041] The second embodiment of this utility model provides a more specific structure of the limiting part 21. Other basic structures are the same as those in the first embodiment and will not be described in detail here.

[0042] like Figure 3 As shown, the limiting part 21 is a limiting groove 211 formed on the outer surface of the second connector 2, so that after the screw 3 is screwed into the threaded hole 11 of the first connector 1, it can fall into the limiting groove 211. The shape of the limiting groove 211 is not limited here, and it can be formed partially or completely around the limiting groove 211. The end of the screw 3 can move along the limiting groove 211, thereby adjusting the relative orientation of the first connector 1 and the second connector 2.

[0043] Preferably, the limiting groove 211 can be formed around the entire circumference of the second connector 2, and the limiting groove 211 is perpendicular to the central axis of the second connector 2. Firstly, the limiting groove 211 surrounding the second connector 2 is easy to manufacture, especially when the second connector 2 is a metal connector, as it can be obtained through rotary cutting, making processing convenient. Furthermore, the end of the screw 3 can rotate around the limiting groove 211. This design ensures that no axial displacement occurs when adjusting the angle of the first pipe component 100 and the second pipe component 200. Finally, after the first pipe component 100 and the second pipe component 200 are connected, they can still rotate to adjust different angles to adapt to different usage scenarios, allowing both the first pipe component 100 and the second pipe component 200 to be installed in the expected orientation, making them more flexible and convenient to use.

[0044] Furthermore, the orientation of the valve during installation is crucial; improper orientation can even cause the valve to malfunction. Therefore, in some preferred embodiments, the first pipeline component 100 and / or the second pipeline component 200 can be valves. This plug-in structure ensures that the valves can always be installed in the intended orientation. The valve can be any one of a gate valve, ball valve, globe valve, filter valve, or pressure reducing valve.

[0045] like Figure 4 As shown, the limiting part 21 can also be a limiting hole 212 opened on the outer surface of the second connector 2. The limiting hole 212 can be a common blind hole or have internal threads. After the screw 3 is screwed in at the predetermined installation position, it can fall into the limiting hole 212. The limiting hole 212 can simultaneously position the first pipeline component 100 and the second pipeline component 200 in the axial, radial and circumferential directions, making the positioning more accurate and preventing the first connector 1 and the second connector 2 from rotating relative to each other after installation. The limiting hole 212 is also very easy to process.

[0046] Figure 5 This is a cross-sectional structural diagram of a plug-in structure provided in the second embodiment of this utility model. Combined with... Figure 1 and Figure 5 As can be seen, after the end of the screw 3 extends into the limiting groove 211, it abuts against the bottom surface 2111 of the limiting groove. Thus, before the screw 3 is fully screwed in, the first connector 1 and the second connector 2 can be rotated circumferentially to adjust the installation orientation. When the screw 3 is fully screwed in, the screw 3 abuts against the bottom surface 2111 of the limiting groove and can be pressed and positioned to ensure a tight installation.

[0047] Third Embodiment

[0048] The third embodiment of this utility model provides a plug-in structure with a sealing ring 4. The other structures are the same as those in the first or second embodiment, and will not be described in detail here.

[0049] Figure 6 This is an axial cross-sectional view of a plug-in structure provided in the third embodiment of this utility model. (See diagram below.) Figure 6 As shown, one or more sealing rings 4 are added to the outer surface of the second connector 2, and the sealing rings 4 protrude from the outer surface of the second connector 2. The sealing rings 4 include at least a first sealing ring 41 disposed between the outer end of the second connector 2 and the limiting part 21. The outer end refers to the end of the first connector 1 facing the second connector 2, or the end of the second connector 2 facing the first connector 1, when a pair of mating first connectors 1 and second connectors 2 are assembled. When the second connector 2 is inserted into the first connector 1, the sealing ring 4 on the outer surface of the second connector 2 is compressed and deformed, thereby pressing it between the inner surface of the first connector 1 and the outer surface of the second connector 2. Furthermore, the first sealing ring 41 is closer to the outer end of the second connector 2, thus achieving a sealing effect on the connection structure between the first connector 1 and the second connector 2, preventing the medium from leaking out from the connection point of the first connector 1 and the second connector 2.

[0050] More preferably, two or more (>2) first sealing rings 41 can be provided to achieve a better sealing effect. The sealing ring 4 may also include a second sealing ring 42, which is respectively disposed on both sides of the limiting portion 21. The second sealing ring 42 provides a second layer of protection for the seal between the second connector 2 and the first connector 1, further enhancing the sealing effect. Furthermore, after assembly, the second sealing ring 42 is closer to the outer end of the first connector 1, which can balance the compressive force exerted by the first sealing ring 41 on the inner surface of the first connector 1, thereby improving the bending resistance of the pipeline at the connection point and providing effective protection for the first sealing ring 41.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A plug-in structure, characterized in that, include: A first pipeline component (100) has a first connector (1) formed on one side. The first connector (1) has a threaded hole (11) that penetrates the inner wall of the first connector (1). The second pipeline component (200) has a second connector (2) formed on one side. The second connector (2) is inserted into the first connector (1). The outer surface of the second connector (2) has a limiting part (21) corresponding to the threaded hole (11). A screw (3) is used to tighten and fix it to the threaded hole (11). When the screw (3) is tightened to the threaded hole (11), the end of the screw (3) passes through the threaded hole (11) and is confined within the limiting part (21).

2. The plug-in structure according to claim 1, characterized in that, The limiting part (21) is a limiting groove (211) formed on the outer surface of the second connector (2).

3. The plug-in structure according to claim 2, characterized in that, The limiting groove (211) is formed around the second connector (2).

4. The plug-in structure according to claim 3, characterized in that, The limiting groove (211) is perpendicular to the central axis of the second connector (2).

5. The plug-in structure according to any one of claims 2-4, characterized in that, The end of the screw (3) abuts against the bottom surface (2111) of the limiting groove (211).

6. The plug-in structure according to claim 1, characterized in that: The limiting part (21) is a limiting hole (212) opened on the outer surface of the second connector (2).

7. The plug-in structure according to claim 1, characterized in that, The first connector (1) has a plurality of threaded holes (11) arranged in a uniform array along the circumference of the first connector (1).

8. The plug-in structure according to claim 1, characterized in that, One or more sealing rings (4) are fitted on the outer surface of the second connector (2), the sealing rings (4) protrude from the outer surface of the second connector (2), and at least one of the sealing rings (4) is disposed between the outer end of the second connector (2) and the limiting part (21).

9. The plug-in structure according to claim 1, characterized in that, The first pipeline component (100) and / or the second pipeline component (200) are valves.

10. The plug-in structure according to claim 9, characterized in that, The valve is any one of the following: gate valve, ball valve, globe valve, filter valve, and pressure reducing valve.

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