Quick insertion structure

Abstract

The utility model discloses a quick plug structure, which comprises a first pipe joint, a second pipe joint and a limit component, the first pipe joint and the second pipe joint are mutually plugged, the limit component is used for axial limit, the limit component comprises a limit groove, a plug hole and a plug pin, and the plug hole penetrates through the inner wall of the first pipe joint; the limiting groove is formed in the outer wall of the second pipe joint, the plug pin is provided with an acting section, the acting section penetrates through the inserting hole, the side portion of the acting section is limited in the limiting groove at the same time, the first pipe joint sequentially comprises a large inner hole section and a small inner hole section from a port of the first pipe joint, and a step is formed at the junction of the large inner hole section and the small inner hole section. The insertion hole is formed in the large inner hole section in a penetrating manner; the second pipe joint sequentially comprises a sealing section and a limiting section from a port of the second pipe joint, the limiting groove is formed in the limiting section, and the sealing section is inserted into the small inner hole section in a sealed mode. According to the utility model, the first pipe joint adopts a large and small hole mode, so that the sealing section is not easy to cut when passing through the insertion hole of the large inner hole section during assembly, and the sealing effect can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water services, in particular to a quick-insertion structure capable of rapid assembly and disassembly. Background Art

[0002] The applicant disclosed a plug-in structure in the patent application with application number 202422518318.0, such as Figure 1 As shown, a plug hole 10' is provided on the inner side of the first pipe joint 1'; a sealing ring 21' and a limiting groove 22' are provided in sequence from the end of the second pipe joint 2', and the sealing ring 21' slightly protrudes from the outer wall of the second pipe joint 2'.

[0003] During installation, the second pipe joint 2' is inserted into the first pipe joint 1'. The sealing ring 21' must pass through the insertion hole 10' to ensure that the insertion hole 10' and the retaining groove 22' are aligned. The edge of the insertion hole 10' is relatively sharp, especially when the first pipe joint 1' is made of metal. Because the inner wall of the first pipe joint 1' and the outer wall of the second pipe joint 2' have similar diameters, the sealing ring 21' can easily be cut and broken by the edge of the insertion hole 10' during assembly and disassembly. Utility Model Content

[0004] The utility model provides a plug-in structure, which aims to overcome the problem in the prior art that a sealing ring is easily cut during the assembly process.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] 14. The fast-plug structure as claimed in claim 13, wherein the first pipe joint is provided at one end of the first pipe joint and the second pipe joint is provided at one end of the second pipe joint, and the second pipe joint is inserted into the first pipe joint. The fast-plug structure also includes a limiting assembly for axially limiting the first pipe joint and the second pipe joint. The limiting assembly includes a limiting groove, a socket and a latch, and the socket passes through the inner wall of the first pipe joint; the limiting groove is opened on the outer wall of the second pipe joint, and the latch has an action section, the action section is passed through the socket, and the side of the action section is simultaneously limited in the limiting groove, the first pipe joint includes a large inner hole section and a small inner hole section in sequence from its end, a step is formed at the junction of the large inner hole section and the small inner hole section, and the socket is passed through the large inner hole section; the second pipe joint includes a sealing section and a limiting section in sequence from its end, the limiting groove is opened in the limiting section, and the sealing section is sealingly inserted into the small inner hole section.

[0007] In a preferred embodiment, the inner wall of the small inner bore section is circular, and a first sealing ring is mounted on the sealing section. The outer diameter of the first sealing ring is smaller than the inner diameter of the large inner bore section. This smaller outer diameter of the first sealing ring ensures that the first sealing ring is not cut by the edge of the socket during assembly.

[0008] In a recommended embodiment, the retaining section also includes a radial retaining portion adapted to mate with the inner wall of the large inner bore section. The outer wall of this radial retaining portion is larger than that of the sealing section, and the retaining groove is located between the sealing section and the radial retaining portion. The outer diameter of the radial retaining portion is similar to the inner diameter of the large inner bore section. This ensures that, after assembly, the radial retaining portion and the large inner bore section fit snugly, effectively preventing shaking and improving structural stability.

[0009] In a recommended embodiment, a second sealing ring is sleeved on the radial limiting portion, which can further prevent shaking and also play a role in dust prevention.

[0010] In a recommended embodiment, the step is a conical surface or an arcuate surface, so as to avoid the sealing section being cut by the edge of the step.

[0011] In a recommended embodiment, the latch is a single latch, and the single latch corresponds to the socket one-to-one.

[0012] In a preferred embodiment, the inner wall of the large inner hole section is circular, the insertion hole includes an arcuate hole section penetrating the inner wall of the large inner hole section, and the active section is located in the arcuate hole section. As a preferred structure, the circular large inner hole section is easy to process.

[0013] In a preferred embodiment, a boss is provided tangentially to the first pipe joint, the jack is opened in the boss, and the jack further comprises extension holes located on both sides of the arc-shaped hole segment. The provision of the boss and the opening of the jack in the boss can improve structural stability.

[0014] In a preferred embodiment, the limiting groove is an annular groove that is perpendicular to the center axis of the limiting section. After the second pipe joint is plugged into the first pipe joint at any angle, the latch can be installed smoothly, making installation more convenient.

[0015] In a recommended embodiment, the insertion hole is parallel to the tangent direction of the first pipe joint, which not only facilitates processing but also improves structural reliability.

[0016] In a recommended embodiment, the first component and / or the second component is a ball valve, a gate valve, a pressure reducing valve, a check valve or a stop valve.

[0017] Beneficial effects of the utility model:

[0018] The sealing section of the second pipe joint is sealed with the small inner hole section of the first pipe joint, and the insertion hole is arranged in the large inner hole section. The first pipe joint of the utility model adopts a large and small hole method. During assembly, the sealing section is not easily cut when passing through the insertion hole of the large inner hole section, which can ensure the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the prior art.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of embodiment 1.

[0021] Figure 3 It is a schematic diagram of the transverse cross-sectional structure of the first pipe joint and the second pipe joint in the exploded state.

[0022] Figure 4 It is a schematic diagram of the transverse cross-sectional structure of the first pipe joint and the second pipe joint in the mating state.

[0023] Figure 5 It is a schematic diagram of the radial cross-section structure.

[0024] Figure 6 Schematic diagram of the radial cross-sectional structure of the first pipe joint.

[0025] Figure 7 It is a schematic diagram of the structure of Example 2 in a disassembled state.

[0026] Figure 8 It is a structural diagram of embodiment 2 in the mating state.

[0027] Description of reference numerals:

[0028] Latch 1; action section 10; first pipe joint 2; large inner hole section 21; small inner hole section 22; step 23; boss 24; second pipe joint 3; sealing section 31; limiting section 32; first sealing ring 33; limiting groove 34; insertion hole 20; arcuate hole section 201; extension section 202; radial limiting portion 35; second sealing ring 36. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

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

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0033] Example 1

[0034] Reference Figure 2 A quick-connect structure includes a first component (not shown), a second component (not shown) and a latch 1. The first component and the second component can be a ball valve, a gate valve, a pressure reducing valve, a check valve, a stop valve, an adapter or a pipe fitting, etc.

[0035] One end of the first component is provided with a first pipe joint 2, and one end of the second component is provided with a second pipe joint 3, and the second pipe joint 3 is inserted into the first pipe joint 2. Figure 3 As can be seen, the first pipe joint 2 includes a large inner hole section 21 and a small inner hole section 22 in sequence from its end, and a step 23 is formed at the junction of the large inner hole section 21 and the small inner hole section 22. In this embodiment, the above-mentioned step 23 is a conical surface (it can also be set to an arc surface according to actual needs).

[0036] Continue to refer to Figure 2 The large inner hole section 21 is provided with a boss 24 along the tangential direction of its outer wall, and a tangentially extending insertion hole 20 is provided in the boss 24. The insertion hole 20 is parallel to the tangential direction of the first pipe joint 2. In this embodiment, the inner wall of the large inner hole section 21 and the inner wall of the small inner hole section 22 are both circular. Figure 6The insertion hole 20 includes an arc-shaped hole section 201 that passes through the inner wall of the large inner hole section and extension holes 202 located on both sides of the arc-shaped hole section. In this embodiment, the two extension holes 202 are straight holes, and one end of each extension hole 202 is connected to the arc-shaped hole section 201, and the other end of each extension hole 202 passes through the corresponding end surface of the protrusion 24, that is, the insertion hole 20 in this embodiment is a through hole.

[0037] The second pipe joint 3 comprises, in order from its end, a sealing section 31 and a retaining section 32. In this embodiment, the outer diameters of the sealing section 31 and the retaining section 32 are substantially identical. The sealing section 31 is provided with a sealing groove (not shown) embedded with a first sealing ring 33. The retaining section 32 is provided with a retaining groove 34 located adjacent to the sealing groove. Furthermore, to ensure that the second pipe joint 3 can be inserted into the first pipe joint 2 at any angle, the retaining groove 34 is an annular groove perpendicular to the central axis of the retaining section 32.

[0038] In this embodiment, the plug 1 is a single plug corresponding to the above-mentioned socket 20 one by one, and is in the shape of a straight rod.

[0039] The limiting groove 34 , the inserting hole 20 and the latch 1 cooperate with each other to form a limiting assembly for axially limiting the first pipe joint 2 and the second pipe joint 3 .

[0040] Also refer to Figure 4 and Figure 5 During assembly, the second pipe joint 3 is first inserted into the first pipe joint 2. At this time, the sealing section 31 is sealed and inserted into the small inner hole section 22. The sealing section 31 can be sealed with the inner wall of the small inner hole section 22 through the first sealing ring 33. Preferably, to ensure that the first sealing ring 33 is not cut by the edge of the arc-shaped hole section 201, the outer diameter of the first sealing ring 33 is smaller than the inner diameter of the large inner hole section 21.

[0041] At the same time, the limiting groove 34 of the limiting section 32 is aligned with the arc-shaped hole section 201 of the insertion hole 20 and intersects with each other.

[0042] Finally, the pin 1 is inserted into the socket 20 from one end thereof. The portion of the pin 1 that falls into the arc-shaped hole section 201 forms an active section 10. The side of the active section 10 is simultaneously confined within the limiting groove 34, thereby completing the assembly and limiting the axial displacement of the first pipe joint 2 and the second pipe joint 3.

[0043] Example 2

[0044] Also refer to Figure 7 and Figure 8The structure of this embodiment is basically the same as that of the above-mentioned embodiment 1, with the main difference being that, in this embodiment, the limiting section 32 further includes a radial limiting portion 35 adapted to the inner wall of the large inner hole section 21. The outer wall size of the radial limiting portion 35 is larger than the outer wall size of the sealing section 31 (the two dotted lines A and B in the figure represent the difference in outer diameter), and the limiting groove 34 is located between the sealing section 31 and the radial limiting portion 35. The outer diameter of the radial limiting portion 35 is close to the inner diameter of the large inner hole section 21, so that after assembly, the radial limiting portion 35 fits the large inner hole section 21, which can effectively prevent shaking and improve the stability of the structure. Preferably, a second sealing ring 36 is provided on the radial limiting portion 35, which can further prevent shaking and has a dust-proof effect.

[0045] In addition, it is worth mentioning that the inner wall of the large inner hole section is not limited to a circle; the latch can also be a U-shaped latch with two pins.

[0046] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A quick-insert structure, comprising a first component and a second component, wherein one end of the first component is provided with a first pipe joint (2), and one end of the second component is provided with a second pipe joint (3), and the second pipe joint (3) is inserted into the first pipe joint (2). The quick-insert structure further comprises a limiting assembly for axially limiting the first pipe joint (2) and the second pipe joint (3), wherein the limiting assembly comprises a limiting groove (34), a socket (20) and a latch (1), wherein the socket (20) passes through the inner wall of the first pipe joint (2); the limiting groove (34) is opened on the outer wall of the second pipe joint (3), and the latch (1) has an action section (10), wherein the action section (10) is passed through the socket (20), and the side of the action section (10) is simultaneously limited in the limiting groove (34), and is characterized in that: The first pipe joint (2) includes a large inner hole section (21) and a small inner hole section (22) in sequence from its end, a step (23) is formed at the junction of the large inner hole section (21) and the small inner hole section (22), and the insertion hole (20) is penetrated on the large inner hole section (21); the second pipe joint (3) includes a sealing section (31) and a limiting section (32) in sequence from its end, the limiting groove (34) is provided in the limiting section (32), and the sealing section (31) is sealed and inserted in the small inner hole section (22).

2. The quick-connect structure according to claim 1, characterized in that: The inner wall of the small inner hole section (22) is circular, and a first sealing ring (33) is sleeved on the sealing section (31). The outer diameter of the first sealing ring (33) is smaller than the inner diameter of the large inner hole section (21).

3. The quick-connect structure according to claim 1, wherein: The limiting section (32) further comprises a radial limiting portion (35) adapted to the inner wall of the large inner hole section (21), the outer wall size of the radial limiting portion (35) being larger than the outer wall size of the sealing section (31), and the limiting groove (34) being located between the sealing section (31) and the radial limiting portion (35).

4. The quick-connect structure according to claim 3, characterized in that: A second sealing ring (36) is sleeved on the radial limiting portion (35).

5. The quick-connect structure according to claim 1, characterized in that: The step (23) is a conical surface or an arc surface.

6. The quick-connect structure according to claim 1, characterized in that: The latch (1) is a single latch, and the single latch corresponds to the socket (20) one by one.

7. The quick-connect structure according to claim 6, characterized in that: The inner wall of the large inner hole section (21) is circular, the insertion hole (20) comprises an arc-shaped hole section (201) penetrating the inner wall of the large inner hole section (21), and the action section (10) is located in the arc-shaped hole section (201).

8. The quick-connect structure according to claim 7, characterized in that: The side wall of the first pipe joint (2) is provided with a tangential boss (24), the insertion hole (20) is opened in the boss (24), and the insertion hole (20) further includes extension holes (202) respectively located on both sides of the arc-shaped hole section (201).

9. The quick-connect structure according to claim 1, characterized in that: The limiting groove (34) is an annular groove, which is perpendicular to the central axis of the limiting section (32).

10. The quick-connect structure according to claim 1, characterized in that: The insertion hole (20) is parallel to the tangent direction of the first pipe joint (2).

11. The quick-connect structure according to claim 1, characterized in that: The first component and / or the second component is a ball valve, a gate valve, a pressure reducing valve, a check valve or a stop valve.

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