Plug-in type structure

Abstract

The utility model relates to the technical field of mechanical connection, and discloses a plug-in type structure which comprises a first pipeline component, a second pipeline component, a plug pin and an anti-disengagement piece, a first connector is formed on one side of the first pipeline component, a plug hole is formed in the first connector, and the plug hole penetrates through the inner wall of the first connector; a second joint is formed on one side of the second pipeline component and is provided with a limiting part corresponding to the insertion hole; the bolt penetrates through the insertion hole and is limited in the limiting part; the anti-disengaging piece is arranged on the outer surface of the plug pin, so that the plug pin and the inserting hole are fixed. The plug-in type structure has the advantages that pipeline components can be rapidly disassembled and assembled, tools such as a wrench are not needed for assistance, further, the reliability of the connection structure after the plug-in type structure is installed is improved through tight fixed fit of the anti-disengaging piece arranged on the plug pin and the plug hole, and the plug-in type structure can be conveniently assembled and disassembled regardless of the installation direction or use scene of the plug-in type structure. And the bolt cannot be loosened due to gravity or vibration.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection technology, and in particular to a plug-in structure that can prevent the pin from coming out of the socket. 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 and pipes. Within a pipeline, it is often necessary to connect valves to valves, pipes to valves, and pipes to pipes. The connection methods and structures of pipelines are diverse, such as tightening and fixing with clamps, tightening with external and internal threads, and plugging and fixing with pins, sockets, and limiting grooves.

[0003] Among them, the fixing of the plug-in fixed structure mainly relies on the pin passing through the plug hole for limiting. In particular, the single pin generally relies on the weight of the pin to fall into the pin hole. When the installation position of the plug-in structure is horizontal or inverted, there is a risk that the pin will come out of the plug hole, which will cause the joint to fall off and separate. Utility Model Content

[0004] This invention provides a plug-in structure that can prevent the pin from coming out of the socket, and its purpose is to overcome the above-mentioned problems existing in the assembly process of the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A plug-in structure includes a first conduit component, a second conduit component, a pin, and an anti-disengagement component. Specifically: one side of the first conduit component forms a first connector with a socket that penetrates the inner wall of the first connector; one side of the second conduit component forms a second connector with a limiting portion corresponding to the socket; the pin passes through the socket and is confined within the limiting portion; the anti-disengagement component is disposed on the outer surface of the pin, thereby fixing the pin to the socket.

[0007] As an optional technical solution, the anti-disengagement component is an elastic element protruding from the outer surface of the pin. The anti-disengagement component can undergo elastic deformation during installation, making assembly simpler and faster. Furthermore, after installation, the elastic anti-disengagement component has good connection with the socket and is not easy to loosen.

[0008] As an optional technical solution, the anti-disengagement component is set around the outer surface of the pin, so that there is no gap between the pin and the socket, increasing the friction between the anti-disengagement component and the socket, and improving the connection.

[0009] As an optional technical solution, the outer diameter of the pin is no larger than the inner diameter of the socket, and the anti-disengagement component is interference-fitted with the socket. This further improves the tightness of the connection between the anti-disengagement component and the socket.

[0010] As an optional technical solution, the second connector is inserted into the first connector. This insertion connection method can, on the one hand, increase the overlapping area between the second and first connectors, reducing the risk of leakage at the connection point; on the other hand, it also facilitates the rotation and adjustment of the orientation of the pipe components during installation, allowing the pipe components to be installed and fixed in the expected orientation.

[0011] As an optional technical solution, the latch includes a main body and a handle. The main body passes through the insertion hole; the handle is located outside the insertion hole and is fixed to one end of the main body. At least part of the outer surface of the main body is formed as a rough surface. The handle facilitates picking up and applying force to the latch, making it easy to disassemble and install. Furthermore, the rough surface of the main body can increase the friction with the anti-disengagement component, thereby increasing the connection stability of the latch.

[0012] As an optional technical solution, the pin is made of metal, and the anti-loosening component is made of rubber. The anti-loosening component is coated onto the rough surface of the pin using a vulcanization process. The anti-loosening component formed by vulcanization has better connection with the metal pin, which can improve the installation and tightness of the pin. In addition, the vulcanization process has high production efficiency and low cost.

[0013] As an optional technical solution, the first connector includes a connector body and a boss. The insertion hole includes a limiting section and an extension section. The limiting section intersects with the limiting portion. The extension section is formed within the boss, extending linearly from one or both ends of the limiting section away from the limiting section. By increasing the wall thickness of the boss in the circumferential direction of the extension section, the structural strength after the insertion hole is opened on the first connector can be increased, thereby ensuring the structural strength of the plug-in structure after the pin is installed. Furthermore, the boss increases the length of the insertion hole, increasing the reliability of the fixing structure of the first and second connectors.

[0014] As an optional technical solution, the anti-disengagement component is located at the end of the main body near the handle, and / or at the end of the main body away from the handle. This allows the anti-disengagement component to avoid contact between the pin and the second connector, preventing the first and second connectors from loosening after being fixed by the pin. In addition, the anti-disengagement component located at the end of the main body ensures the connection is secure, while also taking into account the ease of disassembly and installation.

[0015] As an optional technical solution, the socket can be either a through hole or a blind hole. For a through hole, the pin can pass completely through the socket, which can increase the reliability of the connection structure between the first connector and the second connector; for a blind hole, the opening is only on the side where the pin is inserted, resulting in better sealing.

[0016] The beneficial effects of this utility model are:

[0017] According to the plug-in structure provided by this utility model, the plug-in structure has the advantages of being able to quickly disassemble and assemble pipeline components without the need for tools such as wrenches. Furthermore, by using an anti-loosening component set on the plug to tightly fix and cooperate with the plug hole, the reliability of the connection structure after installation is improved. No matter the installation position or usage scenario of the plug-in structure, the plug will not loosen due to gravity or vibration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a plug-in structure provided by an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the latch and the anti-loosening component provided in the embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the latch provided in this embodiment of the utility model;

[0021] Figure 4 A cross-sectional schematic diagram of a plug-in structure provided by this utility model embodiment. Explanation of reference numerals:

[0022] 100 - First piping component; 200 - Second piping component;

[0023] 1-First connector; 11-Insertion hole; 111-Limiting section; 112-Extension section; 12-Connector body; 13-Protrusion; 2-Second connector; 21-Limiting part; 3-Pin; 31-Main body; 311-Rough surface; 32-Handheld part; 4-Anti-detachment component. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the term "fixed" should be interpreted broadly, referring to two objects remaining relatively stationary without external disassembly or damage. For example, a threaded connection: after the screw is screwed in, the fixed objects remain stationary without external disassembly or assembly; an interference fit connection: when the interference fit is inserted into the through hole, the interference fit is also pressed into the through hole by the clamping force of the through hole, and the two remain stationary; or it can be other detachable or non-detachable connections (e.g., snap-fit, welding, etc.), which can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] 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.

[0027] 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.

[0028] First Embodiment

[0029] Figure 1 This is a schematic diagram of a plug-in structure provided in this embodiment, as shown below. Figure 1 As shown, the plug-in structure includes a first conduit component 100, a second conduit component 200, a pin 3, and an anti-dislodgement component 4. One side of the first conduit component 100 is formed as a first connector 1, and one side of the second conduit component 200 is formed as a second connector 2. The first connector 1 has a hole 11 penetrating its inner wall. The second connector 2 has a limiting portion 21 corresponding to the hole 11. The pin 3 passes through the hole 11 and is confined within the limiting portion 21 to limit the movement of the first conduit component 100 and the second conduit component 200.

[0030] It should be noted that the first piping component 100 and the second piping component 200 can be any piping component with external connectors, such as valves, straight pipes, tees, adapters, etc., and are not limited here. Figure 1 The example illustrates a preferred embodiment in which the first pipeline component 100 and the second pipeline component 200 can be valves, which can be any one of gate valves, ball valves, butterfly valves, filter valves, and pressure reducing valves.

[0031] Furthermore, 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 installed by passing through the insertion hole 11 with a pin 3 and being confined to the limiting part 21. Figure 1 The example illustrates a preferred plug-in structure in which a second connector 2 is plugged into a first connector 1, and a limiting portion 21 corresponding to the insertion hole 11 is formed on the outer surface of the second connector 2. Figure 1 Taking the limiting groove as an example, the plug-in connection method can, on the one hand, increase the overlapping area of ​​the second connector 2 and the first connector 1, reducing the risk of leakage at the connection between the connectors; on the other hand, it can also facilitate the rotation and adjustment of the orientation between the pipeline components during installation, so that the pipeline components (such as valves) can be installed and fixed in the expected orientation.

[0032] However, those skilled in the art will understand that Figure 1 The above only shows a preferred embodiment and does not limit the first connector 1 and the second connector 2 of this utility model to be assembled only by this structure. In some embodiments, the ends of the first connector 1 and the second connector 2 are formed with protruding edges, and corresponding insertion holes 11 are provided on the protruding edges. The connection and fixation of the first connector 1 and the second connector 2 can be achieved by simultaneously passing the pin 3 through the insertion holes 11 of the first connector 1 and the second connector 2. This also falls within the protection scope of this utility model.

[0033] In particular, the plug-in structure provided in this embodiment also includes an anti-dislodgement component 4, which is disposed on the outer surface of the pin 3 so that the pin 3 is fixed to the socket 11. That is, after the pin 3 and the socket 11 are installed, the pin 3 and the socket 11 can remain relatively stationary without external force to disassemble or damage them. The specific structure of the anti-dislodgement component 4 is not limited here. In some embodiments, the anti-dislodgement component 4 can be a protrusion or ring protruding from the outer surface of the pin 3, used to match and fix with the groove on the inner surface of the insertion hole 11. Alternatively, in other embodiments, the anti-dislodgement component 4 can be an elastic element covering the outer surface of the pin 3, which abuts and fixes the pin 3 in the insertion hole 11 by interference fit. Alternatively, in some embodiments, the anti-dislodgement component 4 can be a protrusion provided on the outer surface of the pin 3, and a clamping member that cooperates with the protrusion is formed on the inner surface of the insertion hole 11, so that the pin 3 can be clamped and fixed after the pin 3 is inserted into the insertion hole 11. Those skilled in the art will understand that simple replacement of the structure of the anti-dislodgement component 4 is also within the protection scope of this utility model.

[0034] In this embodiment, the plug-in structure has the advantages of quick assembly and disassembly of pipeline components without the need for tools such as wrenches. Figure 1 Taking the structure shown as an example, during installation, simply insert the second connector 2 into the first connector 1. After the insertion hole 11 aligns with the limiting part 21, insert the pin 3 into the insertion hole 11. The end of the pin 3 is inserted into the limiting part 21 and is limited, thereby achieving the installation and fixation of the first connector 1 and the second connector 2. Furthermore, in this embodiment, the anti-dislodgement component 4 provided on the pin 3 is tightly fixed to the insertion hole 11, further improving the reliability of the connection structure after installation. Regardless of the installation orientation or usage scenario of the plug-in structure, the pin 3 will not loosen due to gravity or vibration.

[0035] Second Embodiment

[0036] The second embodiment of this utility model provides a more specific pin 3 structure. The other structures are the same as those in the first embodiment and will not be described in detail here.

[0037] Figure 2 This is a schematic diagram of the structure of the latch 3 and the anti-dislodgement component 4 provided in the second embodiment of this utility model. (Combined with...) Figure 1 and Figure 2The anti-disengagement component 4 can be an elastic element protruding from the outer surface of the pin 3. The material of this elastic element is not limited; it can be rubber, resin, other elastic polymer materials, or a mixture of these materials. The elastic element can be a protrusion, bump, or ring protruding from the outer surface of the pin 3. Through this elastic element, when the pin 3 is inserted into the socket 11, the anti-disengagement component 4 on its surface can undergo elastic deformation, making assembly simpler and faster. Furthermore, after installation, the elastic anti-disengagement component 4 has good connection with the socket 11 and is not easily loosened.

[0038] Preferably, the anti-disengagement component 4 is arranged around the outer surface of the pin 3, that is, the anti-disengagement component 4 is formed as a plastic sleeve around the outer surface of the pin 3, so that there is no gap between the pin 3 and the socket 11, and the outer surface of the anti-disengagement component 4 can form a full circle of contact surface with the inner surface of the socket 11, increasing the friction between the anti-disengagement component 4 and the socket 11, and improving the connection.

[0039] Preferably, the outer diameter of the pin 3 is not greater than the inner diameter of the socket 11, and the anti-dislodgement component 4 is interference-fitted with the socket 11, that is, the pin 3 can be freely inserted into the socket 11. The anti-dislodgement component 4 is set on the outer surface of the pin 3. During the process of the pin 3 being inserted into the socket 11, the anti-dislodgement component 4 needs to be squeezed to enter the socket 11. After entering the socket 11, due to the elastic characteristics of the anti-dislodgement component 4, it can continuously generate a force that presses and locks against the inner surface of the socket 11, further improving the connection and fastness between the anti-dislodgement component 4 and the socket 11.

[0040] Figure 3 This is a schematic diagram of the structure of the pin 3 provided in the second embodiment of this utility model. Combined with... Figure 2 and Figure 3 The pin 3 can include a main body 31 and a handle 32. The main body 31 is disposed through the insertion hole 11; the handle 32 is disposed outside the insertion hole 11 and fixed to one end of the main body 31. Furthermore, the outer diameter of the anti-disengagement member 4 at the end away from the handle 32 can be set in a gradually decreasing manner. Thus, during the insertion of the pin 3, the contact force between the anti-disengagement member 4 and the inner wall of the insertion hole 11 is initially small and gradually increases as the pin 3 enters. This makes the insertion and assembly process of the pin 3 more convenient while ensuring the reliability of the pin 3's fixation.

[0041] Preferably, at least part of the outer surface of the main body 31 is formed as a rough surface 311, that is, the rough surface 311 can be formed at any position on the outer surface of the main body 31, or the entire outer surface of the main body 31 can be formed as a rough surface 311. The rough surface 311 is an uneven surface with a concave-convex structure, which can increase the adhesion between the anti-disengagement member 4 and the outer surface of the pin 3. For example, the rough surface 311 can be a knurled or lace surface. The rough surface 311 of the main body 31 can increase the friction with the anti-disengagement member 4 and increase the connection stability of the pin 3.

[0042] More preferably, the pin 3 is made of metal and the anti-disengagement part 4 is made of rubber. The anti-disengagement part 4 is coated onto the rough surface 311 of the pin 3 by a vulcanization process. The anti-disengagement part 4 formed by vulcanization process has better connection with the metal pin 3, which can improve the installation and fastening of the pin 3. In addition, the vulcanization process has high production efficiency and low cost.

[0043] Third Embodiment

[0044] The second embodiment of this utility model provides a more specific first connector 1 structure and an anti-dislodgement component 4 structure that cooperates with the insertion hole 11 of the first connector 1. Other structures are the same as those in the first or second embodiment, and will not be described in detail here.

[0045] Figure 4 This is a cross-sectional structural diagram of a plug-in structure provided in the third embodiment of this utility model. (See diagram below.) Figure 4 As shown, the first connector 1 includes a connector body 12 and a boss 13. The insertion hole 11 includes a limiting section 111 and an extension section 112. The limiting section 111 intersects with the limiting part 21. The extension section 112 is formed in the boss 13 and extends linearly from one or both ends of the limiting section 111 away from the limiting section 111. That is, after the pin 3 is inserted into the insertion hole 11, the two ends of the main body 31 of the pin 3 are in the extension section 112, while the middle end of the pin 3 is just in the limiting section 111 and falls into the limiting part 21. Thus, the pin 3 can be fixed to the insertion hole 11 and the limiting part 21 at the same time to realize the connection and fixation of the first connector 1 and the second connector 2. The increased wall thickness of the boss 13 in the circumferential direction of the extension 112 increases the structural strength after the insertion hole 11 is opened on the first connector 1, thereby ensuring the structural strength of the plug-in structure after the pin 3 is installed. Furthermore, the boss 13 increases the length of the insertion hole 11, thereby increasing the reliability of the fixing structure of the first connector 1 and the second connector 2.

[0046] Preferably, the anti-disengagement component 4 is located at the end of the main body 31 near the handle 32, and / or at the end of the main body 31 away from the handle 32. This allows the anti-disengagement component 4 to avoid the contact point between the pin 3 and the second connector 2, preventing the first connector 1 and the second connector 2 from loosening after being fixed by the pin 3. In addition, the anti-disengagement component 4 located at the end of the main body 31 can ensure the connection is secure, while also taking into account the ease of disassembly and installation.

[0047] Specifically, the insertion hole 11 can be either a through hole or a blind hole. For a through hole, the pin 3 can completely pass through it, increasing the reliability of the connection between the first connector 1 and the second connector 2. For a blind hole, the opening is only on the side where the pin 3 is inserted, resulting in better sealing. Furthermore, since the anti-disengagement component 4 of this application has an interference fit with the insertion hole 11, providing a certain degree of sealing, when the insertion hole 11 is a through hole, the anti-disengagement component 4 can be provided at both ends of the main body 31 of the pin 3 to seal both ends of the through hole. When the insertion hole 11 is a blind hole, the anti-disengagement component 4 can be provided at the end of the main body 31 of the pin 3 near the handle 32 to seal the opening end of the blind hole. No additional sealing structure is required, resulting in a simple structure.

[0048] 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, comprising: A first pipeline component (100) is formed on one side as a first connector (1), and the first connector (1) is provided with a socket (11) that penetrates the inner wall of the first connector (1). The second conduit component (200) has a second connector (2) formed on one side, and the second connector (2) has a limiting part (21) corresponding to the socket (11). The pin (3) passes through the socket (11) and is confined within the limiting part (21). Its characteristic is that it further includes: An anti-dislodgement component (4) is provided on the outer surface of the pin (3) so that the pin (3) is fixed to the socket (11).

2. The plug-in structure according to claim 1, characterized in that, The anti-dislodgement component (4) is an elastic component that protrudes from the outer surface of the pin (3).

3. The plug-in structure according to claim 1, characterized in that, The anti-detachment component (4) is disposed around the outer surface of the pin (3).

4. The plug-in structure according to claim 3, characterized in that, The outer diameter of the pin (3) is not greater than the inner diameter of the socket (11), and the anti-dislodgement component (4) is interference-fitted with the socket (11).

5. The plug-in structure according to any one of claims 1-4, characterized in that, The second connector (2) is inserted into the first connector (1).

6. The plug-in structure according to claim 5, characterized in that, The pin (3) includes: The main body (31) is disposed through the socket (11); The hand-held part (32) is disposed outside the socket (11) and fixed to one side end of the main body (31), the outer surface of the main body (31) being at least partially formed as a rough surface (311).

7. The plug-in structure according to claim 6, characterized in that: The pin (3) is made of metal, and the anti-dislodgement component (4) is made of rubber. The anti-dislodgement component (4) is coated with rubber on the rough surface (311) of the pin (3) by vulcanization process.

8. The plug-in structure according to claim 6, characterized in that, The first connector (1) includes a connector body (12) and a boss (13), and the insertion hole (11) includes: The limiting segment (111) is intersecting with the limiting part (21); The extension segment (112) is formed within the protrusion (13) by extending linearly from one or both ends of the limiting segment (111) away from the limiting segment (111).

9. The plug-in structure according to claim 8, characterized in that, The anti-detachment component (4) is disposed on the side end of the main body (31) near the handgrip (32), and / or on the side end of the main body (31) away from the handgrip (32).

10. The plug-in structure according to any one of claims 1-4, characterized in that, The insertion hole (11) is a through hole or a blind hole.

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