Quick insertion structure

Abstract

The utility model belongs to the technical field of water affairs, and discloses a quick insertion structure. The quick insertion structure comprises a first component and a second component, a male pipe joint is arranged at one end of the first component, a female pipe joint is arranged at one end of the second component, the male pipe joint is inserted into the female pipe joint, the quick insertion structure further comprises a plug pin, the male pipe joint sequentially comprises a sealing section and a limiting section from a port of the male pipe joint, and a limiting groove is formed in the outer side wall of the limiting section. An inserting hole is formed in the female pipe connector, the plug pin penetrates through the inserting hole and is limited in the limiting groove at the same time, the limiting section comprises a limiting protruding ring, and the limiting protruding ring is located between the limiting groove and the sealing section. According to the quick insertion structure, the convex ring structure is arranged between the limiting groove and the sealing section, the wall thickness of the stress side of the limiting groove is increased, and therefore the structural strength of the limiting groove is enhanced, the limiting groove obtains better pressure bearing capacity, and the situation that the stress side of the limiting groove is damaged, and consequently the plug pin moves and the sealing piece is damaged is avoided.

Description

Technical Field

[0001] This utility model relates to the field of water technology, and in particular to a quick-connect structure. Background Technology

[0002] The applicant disclosed an insertion structure in patent application number 202422518318.0, such as... Figure 1 As shown, the inner side of the first pipe connector 1′ is provided with a insertion hole 10′; the second pipe connector 2′ is provided with a sealing groove and a limiting groove 22′ sequentially from its port, and a sealing ring 21′ is placed in the sealing groove. During installation, the second pipe connector 2′ is inserted into the first pipe connector 1′, the insertion hole 10′ and the limiting groove 22′ are aligned, and then the pin is inserted into the insertion hole 10′ and simultaneously accommodated in the limiting groove 22′, thereby realizing the axial limiting connection of the first pipe connector 1′ and the second pipe connector 2′.

[0003] This quick-connect structure is actually used in pressurized working conditions, combined with Figure 1 The medium generally flows from right to left, which will exert a leftward thrust on the second pipe joint 2′. Therefore, the forces on both sides of the limiting groove 22′ are uneven. The right side of the limiting groove 22′ is the force-bearing side and will bear greater pressure. However, there is only a very thin wall between the right side of the limiting groove 22′ and the sealing groove. This thin wall is easily damaged after being subjected to force for a long time, which will cause the pin to shift and damage the sealing ring 21′ inside the sealing groove.

[0004] Therefore, there is an urgent need to provide a quick-connect structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a quick-connect structure that can strengthen the wall thickness of the force-bearing side of the limiting groove, thereby enhancing its structural strength, enabling it to achieve better pressure resistance, and preventing pin displacement and seal ring damage.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A quick-connect structure includes a first component and a second component. One end of the first component is provided with a male connector, and one end of the second component is provided with a female connector. The male connector is inserted into the female connector. The quick-connect structure also includes a pin. The male connector includes a sealing section and a limiting section sequentially from its port. A limiting groove is formed on the outer wall of the limiting section. An insertion hole is formed on the female connector. The pin passes through the insertion hole and is simultaneously limited within the limiting groove. The limiting section includes a limiting protrusion ring, which is located between the limiting groove and the sealing section.

[0008] As an optional solution, the outer diameter of the limiting section is greater than the outer diameter of the sealing section, the female pipe joint comprises a large-bore section and a small-bore section in sequence from the port thereof, the insertion hole is arranged in the large-bore section, the sealing section is sealingly inserted into the small-bore section, and the limiting section is inserted into the large-bore section.

[0009] As an optional solution, a first reinforcing chamfer is arranged at the junction of the limiting convex ring and the sealing section.

[0010] As an optional solution, a second reinforcing chamfer is arranged at the junction of the limiting convex ring and the bottom of the limiting groove.

[0011] As an optional solution, the thickness of the limiting convex ring is 1-2 mm.

[0012] As an optional solution, the insertion hole extends in the horizontal direction, and the insertion pin is inserted into the insertion hole in the horizontal direction.

[0013] Alternatively, the insertion hole extends in the vertical direction, and the insertion pin is inserted into the insertion hole in the vertical direction.

[0014] As an optional solution, the insertion pin is a single insertion pin, one insertion hole is arranged on the female pipe joint, part of the single insertion pin is arranged in the insertion hole, and part of the single insertion pin is simultaneously limited in the limiting groove and exposed outside the insertion hole.

[0015] Alternatively, the insertion pin is a U-shaped insertion pin, one insertion hole is arranged on each of the two opposite sides of the female pipe joint, two free ends of the U-shaped insertion pin are respectively arranged in the corresponding insertion holes and simultaneously limited in the limiting groove, and part of the U-shaped insertion pin is exposed outside the insertion hole.

[0016] As an optional solution, a threaded hole is arranged at one end of the insertion hole of the female pipe joint, the threaded hole is in communication with the insertion hole, an outer thread is arranged on part of the outer wall of the single insertion pin, and the single insertion pin is connected to the threaded hole through the outer thread.

[0017] As an optional solution, the diameter of the threaded hole is greater than the diameter of the insertion hole, a third sealing ring is embedded at the bottom of the threaded hole, and the third sealing ring is sleeved outside the single insertion pin.

[0018] As an optional solution, a first sealing groove is arranged on the outer side wall of the sealing section and surrounds the circumference of the sealing section, and a first sealing ring that sealingly cooperates with the female pipe joint is arranged in the first sealing groove.

[0019] The limiting section is provided with a second sealing groove which surrounds the circumference of the limiting section, the second sealing groove and the first sealing groove are arranged on two sides of the limiting groove, and a second sealing ring is arranged in the second sealing groove.

[0020] The utility model discloses beneficial effect has:

[0021] The utility model provides a quick plug structure, plug pin is worn in and is limited to the limit groove in the jack, realizes the axial fixed connection between female pipe joint and male pipe joint, thereby guarantee that male pipe joint and female pipe joint do not have relative displacement in the axial, when dismantling, only need to pull out outward to the plug pin, and the convenient and fast dismounting is convenient and fast. Among them, through setting up the convex ring structure between the limit groove and the sealing section, the wall thickness of the stress side of limit groove is strengthened, thereby the structural strength is strengthened, makes it obtain better pressure capacity, avoids the damage of the stress side of limit groove and leads to the displacement of plug pin and the damage of first sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the sectional view after explosion of the quick plug structure provided by prior art;

[0023] Figure 2 It is the structural schematic diagram of the quick plug structure provided by the utility model embodiment;

[0024] Figure 3 It is the axial sectional view after explosion of the quick plug structure provided by the utility model embodiment;

[0025] Figure 4 It is the axial sectional view of the quick plug structure provided by the utility model embodiment;

[0026] Figure 5 It is the radial sectional view of the quick plug structure provided by the utility model embodiment;

[0027] Figure 6 It is the structural schematic diagram of the male pipe joint provided by the utility model embodiment;

[0028] Figure 7 It is Figure 6 The local enlarged view of A in the middle.

[0029] In the drawing:

[0030] 1', first pipe joint;10', jack;2', second pipe joint;21', sealing ring;22', limit groove;

[0031] 10, first component;20, second component;

[0032] 1, male connector; 11, sealing section; 111, first sealing groove; 12, limiting section; 121, limiting groove; 122, limiting convex ring; 123, first reinforcing chamfer; 124, second reinforcing chamfer; 125, second sealing groove;

[0033] 2, female connector; 21, insertion hole; 22, large-diameter section; 23, small-diameter section; 24, threaded hole;

[0034] 3, latch; 31, single latch; 311, external thread;

[0035] 4, first sealing ring; 5, second sealing ring; 6, third sealing ring. DETAILED DESCRIPTION

[0036] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the present embodiment, the terms "upper", "lower", "right", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0040] As shown in Figures 2 to 5 , the present embodiment provides a quick plug structure, comprising a first component 10 and a second component 20, one end of the first component 10 is provided with a male pipe joint 1, one end of the second component 20 is provided with a female pipe joint 2, the male pipe joint 1 is inserted into the female pipe joint 2, the quick plug structure further comprises a plug pin 3, the male pipe joint 1 comprises a sealing segment 11 and a limiting segment 12 in sequence from its port, a limiting groove 121 is formed on the outer side wall of the limiting segment 12 and surrounds it in the circumferential direction, a plug hole 21 is formed on the female pipe joint 2, the plug pin 3 is inserted into the plug hole 21 and is simultaneously limited in the limiting groove 121.

[0041] It should be noted that the first component 10 and the second component 20 can be ball valves, gate valves, pressure reducing valves, check valves, stop valves or pipelines, etc., which are not limited here.

[0042] During installation, first insert one end of the male pipe joint 1 into the female pipe joint 2, so that the limiting groove 121 is aligned with the plug hole 21, then insert the plug pin 3 from the plug hole 21, the plug pin 3 is inserted into the plug hole 21 and is simultaneously limited in the limiting groove 121, realizing the axial fixed connection between the female pipe joint 2 and the male pipe joint 1, so as to ensure that the male pipe joint 1 and the female pipe joint 2 will not relatively displace in the axial direction, during disassembly, only need to pull out the plug pin 3 outward, which is convenient and fast.

[0043] As shown in Figure 3 and Figure 4 , a first sealing groove 111 is formed on the outer side wall of the sealing segment 11 and surrounds it in the circumferential direction, and a first sealing ring 4 is arranged in the first sealing groove 111 and sealingly cooperates with the female pipe joint 2. The first sealing ring 4 is closer to the end face of the male pipe joint 1, and is mainly used for sealing between the male pipe joint 1 and the side wall of the female pipe joint 2, preventing liquid leakage.

[0044] In the present embodiment, as shown in Figure 3 and Figure 6 , the limiting segment 12 comprises a limiting convex ring 122, which is located between the limiting groove 121 and the sealing segment 11. It can be understood that the limiting groove 121 is located on the side of the end face of the male pipe joint 1 (i.e. Figure 6The right side in the figure is the force receiving side, and the limiting convex ring 122 is the sidewall of the force receiving side of the limiting groove 121. By setting the convex ring structure, the wall thickness between the limiting groove 121 and the first sealing groove 111 is strengthened, that is, the wall thickness of the force receiving side of the limiting groove 121 is strengthened, thereby the structural strength is strengthened, better pressure bearing capacity is obtained, and damage of the force receiving side of the limiting groove 121 leading to displacement of the plug pin 3 and damage of the first sealing ring 4 is avoided.

[0045] Further, as shown in Figure 3 , the outer diameter of the limiting section 12 is larger than the outer diameter of the sealing section 11, the female pipe joint 2 sequentially includes a large aperture section 22 and a small aperture section 23 from the port thereof, the insertion hole 21 is provided in the large aperture section 22, the sealing section 11 is sealingly inserted into the small aperture section 23, and the limiting section 12 is inserted into the large aperture section 22. That is, the male pipe joint 1 and the female pipe joint 2 are in stepped matching, and the outer diameter of the limiting convex ring 122 is larger than the outer diameter of the sealing part, so that the contact area between the plug pin 3 and the limiting convex ring 122 is increased, the pressure bearing capacity of the limiting convex ring 122 is better, and displacement of the plug pin 3 is avoided.

[0046] Further, as shown in Figure 6 and Figure 7 , the junction between the limiting convex ring 122 and the sealing section 11 is provided with a first reinforcing chamfer 123. By setting the first reinforcing chamfer 123, the structural strength of the limiting convex ring 122 is improved, the pressure bearing capacity of the limiting convex ring 122 is better, and displacement of the plug pin 3 is further avoided.

[0047] Further, as shown in Figure 7 , the junction between the limiting convex ring 122 and the bottom of the limiting groove 121 is provided with a second reinforcing chamfer 124. By setting the second reinforcing chamfer 124, the structural strength of the limiting convex ring 122 is further improved, the pressure bearing capacity of the limiting convex ring 122 is better, and displacement of the plug pin 3 is further avoided.

[0048] Optionally, the thickness of the limiting convex ring 122 is 1mm-2mm. Illustratively, the thickness of the limiting convex ring 122 can be 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm or 2mm, etc. By setting the thickness of the limiting convex ring 122 within the above range, the pressure bearing requirement can be met, and the corresponding thickness can be adaptively selected according to the model of the valve.

[0049] In an optional embodiment, the insertion hole 21 extends in the horizontal direction, and the plug pin 3 is inserted into the insertion hole 21 in the horizontal direction. The plug pin 3 is installed horizontally, which can prevent interference with the opening and closing component (such as a hand wheel, a handle, etc.) above the valve, and is more convenient for disassembly and assembly.

[0050] In another alternative embodiment, the insertion hole 21 can also extend in the vertical direction, and the insertion pin 3 is inserted into the insertion hole 21 in the vertical direction. In other alternative embodiments, the insertion hole 21 can also extend in other arbitrary angles in the circumferential direction, and the insertion pin 3 is inserted in the corresponding direction.

[0051] In the present embodiment, as shown in Figure 5 the insertion hole 21 is a blind hole, and the other end of the single insertion pin 31 does not penetrate the insertion hole 21. In another alternative embodiment, the insertion hole 21 can also be a through hole, and the single insertion pin 31 can completely pass through the insertion hole 21, to further enhance the reliability of the connection.

[0052] In the present embodiment, as shown in Figure 5 the insertion hole 21 is a blind hole, and the other end of the single insertion pin 31 does not penetrate the insertion hole 21. In another alternative embodiment, the insertion hole 21 can also be a through hole, and the single insertion pin 31 can completely pass through the insertion hole 21, to further enhance the reliability of the connection.

[0053] In the present embodiment, as shown in Figure 5 the insertion hole 21 is a blind hole, and the other end of the single insertion pin 31 does not penetrate the insertion hole 21. In another alternative embodiment, the insertion hole 21 can also be a through hole, and the single insertion pin 31 can completely pass through the insertion hole 21, to further enhance the reliability of the connection.

[0054] Further, the hole diameter of the threaded hole 24 is larger than the hole diameter of the insertion hole 21, the hole bottom of the threaded hole 24 is embedded with a third sealing ring 6, and the third sealing ring 6 is sleeved on the single insertion pin 31. The third sealing ring 6 can first play a sealing and dustproof role, and secondly can also play a loosening prevention role to prevent the single insertion pin 31 from falling off and being lost.

[0055] In another alternative embodiment, the insertion pin 3 can also be a U-shaped insertion pin, the female pipe joint 2 is provided with one insertion hole 21 on each of the two opposite sides, the two free ends of the U-shaped insertion pin are respectively inserted into the corresponding insertion holes 21 and are simultaneously limited in the limiting grooves 121, and part of the U-shaped insertion pin is exposed outside the insertion hole 21. In this way, the axial fixed connection of the male pipe joint 1 and the female pipe joint 2 can also be achieved, and the part of the U-shaped insertion pin exposed outside the insertion hole 21 can be used as the force application position when pulling out, so that the disassembly and assembly are convenient and fast. It should be noted that the setting of such a U-shaped insertion pin is relatively common in the prior art, and therefore is not shown in the figure.

[0056] In the embodiment, as shown in Figure 3 and Figure 4 The second sealing groove 125 is arranged on the limiting section 12 and surrounds the circumference of the limiting section 12, the second sealing groove 125 is arranged on the two sides of the limiting groove 121 separately from the first sealing groove 111, and the second sealing groove 125 contains the second sealing ring 5. The diameter of the second sealing ring 5 is thinner than that of the first sealing ring 4, and the second sealing ring 5 mainly plays a role of sealing dust.

[0057] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, all the embodiments cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A quick connect structure, characterized by, The utility model provides a quick plug structure, which comprises a first component (10) and a second component (20), one end of the first component (10) is provided with a male pipe joint (1), one end of the second component (20) is provided with a female pipe joint (2), the male pipe joint (1) is inserted into the female pipe joint (2), the quick plug structure further comprises a plug pin (3), the male pipe joint (1) comprises a sealing section (11) and a limiting section (12) in sequence from its port, a limiting groove (121) is formed on the outer side wall of the limiting section (12), a plug hole (21) is formed on the female pipe joint (2), the plug pin (3) is arranged in the plug hole (21) and is limited in the limiting groove (121), and the limiting section (12) comprises a limiting convex ring (122) which is located between the limiting groove (121) and the sealing section (11).

2. The quick plug structure of claim 1, wherein The outer diameter of the limiting section (12) is larger than that of the sealing section (11), the female pipe joint (2) comprises a large-aperture section (22) and a small-aperture section (23) in sequence from its port, the plug hole (21) is arranged in the large-aperture section (22), the sealing section (11) is inserted into the small-aperture section (23), and the limiting section (12) is inserted into the large-aperture section (22).

3. The quick plug structure of claim 2, wherein A first reinforcing chamfer (123) is arranged at the junction of the limiting convex ring (122) and the sealing section (11).

4. The quick plug structure of claim 1, wherein A second reinforcing chamfer (124) is arranged at the junction of the limiting convex ring (122) and the bottom of the limiting groove (121).

5. The quick plug structure of claim 1, wherein The thickness of the limiting convex ring (122) is 1mm-2mm.

6. The quick plug structure of claim 1, wherein The plug hole (21) extends in the horizontal direction, and the plug pin (3) is inserted into the plug hole (21) in the horizontal direction. Alternatively, the plug hole (21) extends in the vertical direction, and the plug pin (3) is inserted into the plug hole (21) in the vertical direction.

7. The quick plug structure of claim 1, wherein The plug pin (3) is a single plug pin (31), one plug hole (21) is formed on the female pipe joint (2), part of the single plug pin (31) is arranged in the plug hole (21) and is limited in the limiting groove (121), and part of the single plug pin (31) is exposed outside the plug hole (21). Alternatively, the plug pin (3) is a U-shaped plug pin, one plug hole (21) is formed on each of the two opposite sides of the female pipe joint (2), both free ends of the U-shaped plug pin are arranged in the corresponding plug holes (21) and are limited in the limiting grooves (121), and part of the U-shaped plug pin is exposed outside the plug holes (21).

8. The quick plug structure of claim 7, wherein A threaded hole (24) is formed at one end of the plug hole (21) of the female pipe joint (2), the threaded hole (24) communicates with the plug hole (21), part of the outer wall of the single plug pin (31) is provided with external threads (311), and the single plug pin (31) is connected with the threaded hole (24) through the external threads (311).

9. The quick plug structure of claim 8, wherein, The threaded hole (24) has a larger hole diameter than the insertion hole (21), and a third sealing ring (6) is embedded in the bottom of the threaded hole (24) and sleeved outside the single pin (31).

10. The quick plug structure of claim 1, wherein A first sealing groove (111) is formed in the outer side wall of the sealing section (11) and surrounds the circumference of the sealing section (11), and a first sealing ring (4) that sealingly cooperates with the female pipe joint (2) is arranged in the first sealing groove (111). A second sealing groove (125) is formed in the limiting section (12) and surrounds the circumference of the limiting section (12), and the second sealing groove (125) and the first sealing groove (111) are arranged on the two sides of the limiting groove (121), and a second sealing ring (5) is arranged in the second sealing groove (125).

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