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 part, a second part and an insertion piece, a male pipe joint is arranged at one end of the first part, a female pipe joint is arranged at one end of the second part, the male pipe joint is inserted into the female pipe joint, a limiting groove is formed in the outer side wall of the male pipe joint, the female pipe joint comprises a body and a connecting boss, and an insertion hole is formed in the body; the inserting hole penetrates through the side wall of the body and divides the body into a first section and a second section, the connecting boss is arranged on the outer side wall of the body in a protruding mode and erected between the first section and the second section, and the inserting piece is arranged in the inserting hole in a penetrating mode and limited in the limiting groove at the same time. According to the quick insertion structure, when the inner hole and the insertion hole of the female pipe joint are machined, machining can be completed only through lathe machining equipment, and therefore machining efficiency is greatly improved, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water affair technical field especially relates to a quick plug structure. BACKGROUND

[0002] In the waterway system such as town water supply and drainage system, domestic water system, air conditioner, heating system, threaded connection mode is more common in pipeline connection, in order to ensure the sealing effect, usually need to wind raw material belt at threaded connection when installing, and the raw material belt is wound too thick, and two connecting pipelines cannot be connected, and the raw material belt is wound too thin, then leakage is prone to appear, the whole installation process is tedious, and maintenance is inconvenient.

[0003] In order to solve the above problems, in the prior art, quick plug structure is usually used, that is, the valve and the valve or the valve and the pipe joint are usually connected quickly by using a latch. Figure 1 As shown in the figure, the quick plug structure includes a male pipe joint, a female pipe joint 10 and a U-shaped latch, the male pipe joint is inserted into the female pipe joint 10, a limiting groove is formed on the outer side wall of the male pipe joint, two insertion holes 101 are formed on the female pipe joint 10, and the two free ends of the U-shaped latch are inserted into the corresponding insertion holes 101 and are simultaneously limited in the limiting groove, so as to realize the axial limiting connection between the male pipe joint and the female pipe joint 10. Figure 1 As shown in the figure, the insertion hole 101 is an arc-shaped hole extending along the tangent direction of the female pipe joint 10, and the female pipe joint 10 needs to pass through turning machining and milling machining procedures in sequence when being processed, that is, the inner hole at the center is processed by using a lathe first, and then the two insertion holes 101 on the two sides are processed by using a milling machine, so that the machining procedure is complex, the processing cost is increased, and the processing efficiency is reduced.

[0004] Therefore, it is urgent to provide a quick plug structure to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a quick plug structure, when processing the inner hole and the insertion hole of the female pipe joint, only the lathe processing equipment is used to complete the processing, so that the processing efficiency is greatly improved, and the production cost is reduced.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of quick plug structure, including first component, second component and plug, one end of the first component is equipped with male pipe joint, one end of the second component is equipped with female pipe joint, the male pipe joint is inserted in the female pipe joint, the outer side wall of the male pipe joint is equipped with limiting slot, the female pipe joint includes body and connecting boss, the body is equipped with insertion hole, the insertion hole penetrates the side wall of the body, and the body is divided into first section and second section, the connecting boss is protruded on the outer side wall of the body and is erected between the first section and the second section, the plug is arranged in the insertion hole and is limited in the limiting slot simultaneously.

[0008] As an optional solution, the inner diameter of the connecting boss is greater than or equal to the outer diameter of the body.

[0009] As an optional solution, the insertion hole is an annular hole.

[0010] As an optional solution, the number of the connecting boss is two, and the two connecting bosses are oppositely arranged along the radial direction of the body.

[0011] Alternatively, the number of the connecting boss is three or more, and the three or more connecting bosses are arranged at intervals along the circumferential direction of the body.

[0012] As an optional solution, the plug is a U-shaped piece, the U-shaped piece includes two limiting parts and a connecting part connected between the two limiting parts, each limiting part is arranged in the insertion hole and is limited in the limiting slot, and the connecting boss is located outside the limiting part.

[0013] As an optional solution, the U-shaped piece is a U-shaped plug.

[0014] As an optional solution, the U-shaped plug further includes a hand-holding part, the hand-holding part is located outside the insertion hole and is connected to the connecting part at an angle.

[0015] As an optional solution, the inner side of the limiting part includes an arc-shaped side, and the arc-shaped side is matched with the groove bottom of the limiting slot.

[0016] As an optional solution, the inner side of the limiting part further includes a straight side, the straight side is connected to one end of the arc-shaped side and is close to the free end of the limiting part, and the minimum distance between the straight sides of the two limiting parts is less than the diameter of the groove bottom.

[0017] As an optional solution, the U-shaped piece is a U-shaped plug, both free ends of the U-shaped plug are arranged in the insertion hole and are limited in the limiting slot, and part of the U-shaped plug is exposed outside the insertion hole.

[0018] As an alternative, a first sealing groove is formed on the outer side wall of the male pipe joint and surrounds the circumference thereof, the first sealing groove is located between the end face of the male pipe joint and the limiting groove, and a first sealing ring that sealingly cooperates with the body is arranged in the first sealing groove.

[0019] The utility model discloses beneficial effects:

[0020] The utility model provides a quick plug structure, can realize quick plug connection between female pipe joint and male pipe joint, and is convenient and fast to disassemble and assemble.

[0021] When the inner hole and the insertion hole of the female pipe joint are processed, only lathe processing equipment is needed to complete the processing, thereby greatly improving processing efficiency and reducing production cost.

[0022] By arranging the connecting boss on the side wall of the body, the wall thickness of part positions of the body is increased, and when the insertion hole of the body is processed, the female pipe joint will not be broken due to the connecting action of the connecting boss, and the structural strength can still be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the structure diagram of the female pipe joint provided by the prior art;

[0024] Figure 2 is the explosion view of the quick plug structure provided by the utility model embodiment;

[0025] Figure 3 is the axial sectional view of the quick plug structure after explosion provided by the utility model embodiment;

[0026] Figure 4 is the axial sectional view of the quick plug structure after cooperation provided by the utility model embodiment;

[0027] Figure 5 is the radial sectional view of the quick plug structure after cooperation provided by the utility model embodiment;

[0028] Figure 6 is the structure diagram of the U-shaped plug plate provided by the utility model embodiment.

[0029] In the drawing:

[0030] 10, female pipe joint; 101, insertion hole;

[0031] 1, male pipe joint; 11, limiting groove; 12, first sealing groove; 13, second sealing groove;

[0032] 2, female pipe joint; 21, body; 211, insertion hole; 22, connecting boss;

[0033] 3, plug; 31, U-shaped plugboard; 311, limiting part; 3111, arc-shaped edge; 3112, straight edge; 312, connecting part; 313, hand-held part;

[0034] 4, first sealing ring; 5, second sealing ring. DETAILED DESCRIPTION

[0035] 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 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.

[0036] 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.

[0037] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature 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.

[0038] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0039] As Figure 2As shown, the embodiment provides a quick plug structure, which comprises a first component, a second component and a plug-in part 3, one end of the first component is provided with a male pipe joint 1, one end of the second component is provided with a female pipe joint 2, the male pipe joint 1 is plugged into the female pipe joint 2, and the plug-in part 3 is used to realize the axial fixed connection between the male pipe joint 1 and the female pipe joint 2, so as to realize the quick plug connection between the first component and the second component. It should be noted that the first component and the second component can be ball valves, gate valves, pressure reducing valves, check valves, stop valves, pipe fittings or pipe joints, etc., which are not limited here.

[0040] Specifically, in combination with Figures 2 to 5 As shown, a limiting groove 11 is formed on the outer side wall of the male pipe joint 1, the limiting groove 11 is a circular ring, the female pipe joint 2 comprises a body 21 and a connecting boss 22, the body 21 is provided with a plug hole 211, the plug hole 211 penetrates the side wall of the body 21 and divides the body 21 into a first segment and a second segment, the connecting boss 22 is protruded on the outer side wall of the body 21 and is arranged between the first segment and the second segment, and the plug-in part 3 is arranged in the plug hole 211 and is limited in the limiting groove 11.

[0041] During installation, one end of the male pipe joint 1 is first inserted into the female pipe joint 2, so that the limiting groove 11 is aligned with the plug hole 211, and then the plug-in part 3 is inserted from the plug hole 211, the plug-in part 3 is arranged in the plug hole 211 and is limited in the limiting groove 11 at the same time, thereby 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 cannot relatively displace in the axial direction, and during disassembly, the plug-in part 3 can be pulled out outward, which is convenient and fast, and greatly improves the disassembly efficiency.

[0042] When machining the inner hole and the plug hole 211 of the female pipe joint 2, only lathe machining equipment is needed to complete the machining, so that the machining efficiency is greatly improved and the production cost is reduced.

[0043] By arranging the connecting boss 22 on the side wall of the body 21, the wall thickness of part of the position of the body 21 is increased, and the plug hole 211 penetrating the body 21 will not be broken due to the connecting action of the connecting boss 22 during machining, and the structural strength can still be ensured. Moreover, the connecting boss 22 can limit the plug-in part 3, prevent the plug-in part 3 from rotating in the circumferential direction, so that the plug-in part 3 is not easy to be pulled out, and connection failure is avoided.

[0044] By Figure 2 As can be seen, the cross sections of the male pipe joint 1 and the female pipe joint 2 are both circular, so the plug hole 211 is an annular hole and penetrates the side wall of the body 21 in the radial direction.

[0045] In the embodiment, as Figure 3As shown, the inner diameter r of the connecting boss 22 can be slightly larger than the outer diameter R of the body 21, that is, after the insertion hole 211 penetrates the body 21, a certain depth is further machined on the connecting boss 22, but the depth is very small, which needs to ensure the structural strength. In other alternative embodiments, the inner diameter r of the connecting boss 22 can also be equal to the outer diameter R of the body 21, that is, the insertion hole 211 just penetrates the body 21, and does not process on the connecting boss 22.

[0046] As shown in Figure 5 and Figure 6 In the present embodiment, the splicing piece 3 is a U-shaped piece, which is an integral molding structure, including two limiting portions 311 and a connecting portion 312 connected between the two limiting portions 311, each limiting portion 311 is respectively penetrated in the insertion hole 211 and is simultaneously limited in the limiting groove 11, the connecting boss 22 is located outside the limiting portion 311, limiting the limiting portion 311, preventing the U-shaped piece from rotating, so that the U-shaped piece is not easy to be pulled out, avoiding the connection failure. By setting the U-shaped piece, the U-shaped piece is double-sidedly stressed in the axial direction, the stress is uniform, ensuring the coaxiality of the installation axis of the male pipe joint 1 and the female pipe joint 2, avoiding the non-uniform axial stress caused by the water pressure of the pipeline, which leads to the sealing leakage,

[0047] In the present embodiment, as shown in Figure 6 The U-shaped piece is a U-shaped plug plate 31. The limiting stress of the U-shaped plug plate 31 is a plane contact stress, which can enhance the stress area and avoid damage and deformation caused by long-term axial stress.

[0048] As shown in Figure 6 The U-shaped plug plate 31 further includes a hand holding portion 313, which is located outside the insertion hole 211 and is connected with the connecting portion 312 and is arranged at an angle. The hand holding portion 313 can facilitate the plugging and unplugging action of the U-shaped plug plate 31, and is convenient and fast to disassemble and assemble.

[0049] Further, as shown in Figure 5 and Figure 6 The inner side of the limiting portion 311 includes an arc-shaped side 3111, which is matched with the groove bottom of the limiting groove 11. When the limiting portion 311 is inserted into the insertion hole 211 of the female pipe joint 2, the arc-shaped side 3111 of the limiting portion 311 is matched with the groove bottom of the limiting groove 11, showing the state of holding the male pipe joint 1 as shown in Figure 5 , thereby realizing the axial limiting action between the male pipe joint 1 and the female pipe joint 2, and the connection is stable, which can ensure the coaxiality of the installation axis of the male pipe joint 1 and the female pipe joint 2.

[0050] Further, the inner side of the limiting part 311 further comprises a straight line edge 3112, which is connected to one end of the arc-shaped edge 3111 and close to the free end of the limiting part 311, and the minimum distance between the straight line edges 3112 of the two limiting parts 311 is less than the diameter of the groove bottom of the limiting groove 11. In this way, after the U-shaped plug plate 31 is inserted, the U-shaped plug plate 31 can be prevented from falling off.

[0051] Of course, in another alternative embodiment, the U-shaped member can also be a U-shaped plug pin with a circular cross section, both free ends of the U-shaped plug pin are respectively arranged in the insertion hole 211 and simultaneously limited in the limiting groove 11, and part of the U-shaped plug pin is exposed outside the insertion hole 211. 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 plug pin exposed outside the insertion hole 211 can be used as a force application position when pulling out, which is convenient and fast to disassemble and assemble, but unlike the U-shaped plug plate 31, the limiting force of the U-shaped plug pin is a line contact force. It should be noted that such a U-shaped plug pin is common in the prior art, and therefore is not shown in the figure.

[0052] In another alternative embodiment, the plug-in part 3 can also be provided as two single plug plates or two single plug pins, which are symmetrically distributed and respectively inserted into the insertion hole 211 and simultaneously limited in the limiting groove 11, and the axial fixed connection of the male pipe joint 1 and the female pipe joint 2 can also be achieved.

[0053] As shown in Figure 3 The outer side wall of the male pipe joint 1 is provided with a first sealing groove 12 which surrounds the circumference thereof, the first sealing groove 12 is located between the end face of the male pipe joint 1 and the limiting groove 11, and the first sealing groove 12 is provided with a first sealing ring 4 which is in sealing cooperation with the body 21. 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 to prevent liquid leakage.

[0054] Further, the outer side wall of the male pipe joint 1 is further provided with a second sealing groove 13 which surrounds the circumference, the second sealing groove 13 and the first sealing groove 12 are respectively arranged on both sides of the limiting groove 11, and the second sealing groove 13 is provided with a second sealing ring 5. The second sealing ring 5 has a smaller diameter than the first sealing ring 4, and mainly plays a sealing and dustproof role.

[0055] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A quick coupling structure comprising a first member, a second member and a coupling member (3), one end of the first member is provided with a male pipe joint (1), one end of the second member is provided with a female pipe joint (2), the male pipe joint (1) is inserted into the female pipe joint (2), a limiting groove (11) is formed on the outer side wall of the male pipe joint (1), characterized in that, The female pipe joint (2) comprises a body (21) and a connecting boss (22), the body (21) is provided with a insertion hole (211) penetrating the side wall of the body (21) and dividing the body (21) into a first section and a second section, the connecting boss (22) is arranged on the outer side wall of the body (21) and is arranged between the first section and the second section, and the insertion piece (3) is arranged in the insertion hole (211) and is limited in the limiting groove (11).

2. The quick plug structure of claim 1, wherein The inner diameter of the connecting boss (22) is greater than or equal to the outer diameter of the body (21).

3. The quick plug structure of claim 1, wherein The insertion hole (211) is an annular hole.

4. The quick plug structure of claim 1, wherein The number of the connecting bosses (22) is two, and the two connecting bosses (22) are arranged in opposite directions along the radial direction of the body (21). Alternatively, the number of the connecting bosses (22) is three or more, and the three or more connecting bosses (22) are arranged in a spaced manner along the circumferential direction of the body (21).

5. The quick plug structure of claim 1, wherein The insertion piece (3) is a U-shaped piece, the U-shaped piece comprises two limiting portions (311) and a connecting portion (312) connected between the two limiting portions (311), each limiting portion (311) is arranged in the insertion hole (211) and is limited in the limiting groove (11), and the connecting boss (22) is located outside the limiting portion (311).

6. The quick plug structure of claim 5, wherein The U-shaped piece is a U-shaped plug (31).

7. The quick plug structure of claim 6, wherein The U-shaped plug (31) further comprises a hand holding portion (313), the hand holding portion (313) is located outside the insertion hole (211) and is connected to the connecting portion (312) and is arranged at an angle.

8. The quick plug structure of claim 6, wherein The inner side of the limiting portion (311) comprises an arc-shaped side (3111), and the arc-shaped side (3111) is matched with the groove bottom of the limiting groove (11).

9. The quick plug structure of claim 8, wherein, The limiting portion (311) further comprises a straight side (3112), the straight side (3112) is connected to one end of the arc-shaped side (3111) and is close to the free end of the limiting portion (311), and the minimum distance between the straight sides (3112) of the two limiting portions (311) is less than the diameter of the groove bottom of the limiting groove (11).

10. The quick plug structure of claim 5, wherein, The U-shaped piece is a U-shaped plug, two free ends of the U-shaped plug are arranged in the insertion hole (211) and are limited in the limiting groove (11), and part of the U-shaped plug is exposed outside the insertion hole (211).

11. The quick plug structure of claim 1, wherein The outer side wall of the male pipe joint (1) is provided with a first sealing groove (12) surrounding the circumferential direction, the first sealing groove (12) is located between the end face of the male pipe joint (1) and the limiting groove (11), and the first sealing groove (12) contains a first sealing ring (4) in sealing cooperation with the body (21).

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