Quick insertion mechanism for gas circuit connection

Abstract

The utility model relates to the technical field of gas and liquid fluid valves, and discloses a quick-plug mechanism for gas circuit connection, which comprises a quick-plug seat, the quick-plug seat is a base arranged on a gas circuit connector and used for plugging, a quick-plug shell is plugged at the top of the quick-plug seat, a pipeline is arranged at the top of the quick-plug shell in a penetrating manner, and the quick-plug seat is connected with the quick-plug shell. And the bottom end of the pipeline penetrates through the quick insertion shell and extends into the quick insertion seat, a sealing gasket and a grabbing buckle are arranged between the quick insertion seat and the quick insertion shell, and the sealing gasket and the grabbing buckle are connected to the surface of the pipeline in a sleeving mode. According to the quick insertion mechanism for gas circuit connection, the problems that in the prior art, most pipeline connection modes are threaded connection, in some medium-pressure and high-pressure fluid working conditions, threads are inevitably abraded after screwing and dismounting for more than a certain number of times, a connector is welded and cannot be replaced, sealing failure is likely to happen to the threads, and the sealing performance is poor are solved. And leakage of gas and liquid fluids is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas and liquid fluid valves, in particular to a quick-insertion mechanism for gas line connection. Background Art

[0002] In order to facilitate the use of fluid pipelines, valves and other interfaces generally use sealing structures such as flanges and threads, and set the joints in the fluid pipelines to a plug-and-play connection method to achieve the effect of quick plug-in and pull-out of the joints. With the innovation of material forming, processing technology, cost control and other technologies and related fields in recent years, the quick-plug structure will gradually become a connection method widely used in valve interfaces.

[0003] The transportation of gas and liquid fluids generally relies on pipelines. In some spatial occasions, pipeline connection is very difficult. At the same time, due to the characteristics of gas and liquid fluids themselves, extremely high sealing requirements are required. In the automotive, aviation and other industries, the requirements of low cost and high reliability make the design of joints and matching structures more complicated. In the prior art, pipeline connection methods mostly use threaded connections. In some medium and high-pressure fluid working conditions, after more than a certain number of unscrewing and unscrewing, the threads are inevitably worn, and the connector itself is welded and cannot be replaced, so that the threads are prone to sealing failure, resulting in leakage of gas and liquid fluids. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a quick-insertion mechanism for gas line connection, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a quick-insertion mechanism for gas circuit connection, comprising: a quick socket, the quick socket being a base arranged on a gas circuit connection port for plugging, a quick-insertion shell being inserted and arranged on the top of the quick socket, a pipeline being arranged through the top of the quick-insertion shell, the bottom end of the pipeline passing through the quick-insertion shell and extending to the inside of the quick socket, a sealing gasket and a catch being arranged between the quick socket and the quick-insertion shell, respectively, the sealing gasket and the catch being sleeved on the surface of the pipeline;

[0006] The quick socket comprises a connection seat, the front and back sides of the connection seat are integrally provided with a clamping block, both sides of the connection seat are provided with a guide slider, and the two guide sliders are symmetrically arranged with the clamping block as the axis, the top of the connection seat is integrally provided with a convex ring, the inner wall of the connection seat near the top is provided with a buckle groove, and the catch is located inside the buckle groove;

[0007] A clamping groove and a sliding groove are respectively provided on the surface of the quick-insertion housing, and the positions of the clamping groove and the sliding groove correspond to the positions of the clamping block and the guide sliding block respectively.

[0008] Preferably, the connection seat is an inverted T-shaped base, the middle part of the connection seat is a straight tube for plugging, and both the front and back sides of the connection seat are cut and provided with planes to form an elliptical tube shape.

[0009] Preferably, a corner of the top of the clamping block away from one side of the connecting seat is provided with an inclined surface, and the clamping block is located at the midline of the front and rear planes of the connecting seat.

[0010] Preferably, the single-side corner of the guide sliding block away from the connecting seat is set as a rounded corner, and the radius of the rounded corner corresponds to the radius of the arc of the outer edge of the quick-connect shell.

[0011] Preferably, the outer edge of the raised ring is an annular inclined surface, and the top of the raised ring overlaps the bottom of the sealing gasket.

[0012] Preferably, the card slot is a blocked strip-shaped through slot, and the height and width of the inner wall of the card slot correspond to the height and width of the card block.

[0013] Preferably, the bottom of the slide groove is an open straight-through opening, and the width of the inner wall of the slide groove corresponds to the width of the guide sliding block.

[0014] Preferably, the inner wall of the sealing gasket adopts a double-layer sealing arrangement.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The quick-insertion mechanism for gas line connection, by providing a quick socket and a quick-insertion shell, uses the quick-insertion shell and the quick-insertion socket to clamp and cooperate to fix the pipeline, thereby replacing the current threaded structure joint, which not only facilitates the use of quick-insertion of pipelines, but also effectively reduces the wear of the fixed position during installation, thereby improving the reliability of the quick-insertion mechanism, increasing the service life of the quick-insertion mechanism, and avoiding leakage.

[0017] 2. The quick-insertion mechanism for gas circuit connection, by separately setting the quick socket as a part, can be provided with corresponding types of quick-insertion mechanisms for various gas supply pipeline connections such as medical oxygen supply equipment, welding ventilation equipment, etc., and applied to the gas circuit connections of different equipment, further increasing the application scope of the quick-insertion mechanism, so that various equipment involving gas circuit connection can enjoy the quick-insertion capability.

[0018] 3. The quick-insert mechanism for gas path connection is provided with a quick-insert shell, and the sealing gasket and the catch are fixed by the quick-insert shell. The quick-insert shell itself is a detachable mechanism. Therefore, during the use of the quick-insert base, the quick-insert shell can be replaced to maintain the overall sealing of the quick-insert mechanism and the firmness of the pipeline, thereby further improving the practical effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the disassembly and assembly structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the side section structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the quick socket of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the quick-insert shell of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the quick socket of the utility model.

[0024] In the figure: 1, quick socket; 11, connecting seat; 12, guide slide block; 13, clamping block; 14, convex ring; 15, buckle groove; 2, quick plug shell; 3, pipeline; 4, sealing gasket; 5, grab buckle; 6, clamping groove; 7, slide groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 , a quick-insertion mechanism for gas circuit connection, comprising: a quick socket 1, which is a base arranged on the gas circuit connection port for plugging, a quick-insertion shell 2 is plugged into the top of the quick socket 1, a pipe 3 is penetrated on the top of the quick-insertion shell 2, the bottom end of the pipe 3 passes through the quick-insertion shell 2 and extends to the inside of the quick socket 1, a sealing gasket 4 and a catch 5 are respectively arranged between the quick socket 1 and the quick-insertion shell 2, and the sealing gasket 4 and the catch 5 are both sleeved on the surface of the pipe 3;

[0027] The quick socket 1 includes a connection seat 11, and a clamping block 13 is integrally provided on both sides of the connection seat 11. A guide slider 12 is provided on both sides of the connection seat 11, and the two guide sliders 12 are symmetrically arranged with the clamping block 13 as an axis. A convex ring 14 is integrally provided on the top of the connection seat 11, and a buckle groove 15 is opened on the inner wall of the connection seat 11 near the top, and the catch 5 is located inside the buckle groove 15;

[0028] The surface of the quick-plug shell 2 is respectively provided with a card groove 6 and a slide groove 7, and the positions of the card groove 6 and the slide groove 7 correspond to the positions of the card block 13 and the guide slider 12 respectively. By setting the quick socket 1 and the quick-plug shell 2, the quick-plug shell 2 and the quick socket 1 are snap-fitted to fix the pipe 3, thereby replacing the current threaded structure joint, which not only facilitates the use of quick plug-in of the pipe 3, but also effectively reduces the wear at the fixed position during installation, thereby improving the reliability of the quick-plug mechanism, increasing the service life of the quick-plug mechanism, and avoiding leakage.

[0029] Among them; the connecting seat 11 is an inverted T-shaped base, the middle part of the connecting seat 11 is a straight tube for plug-in, and the front and back sides of the connecting seat 11 are formed into an elliptical tube due to the cutting and setting of flat surfaces. The T-shaped base is the basic display of the connecting seat 11 for plug-in. For the air path connection of different devices, the corresponding installation method of the connecting seat 11 can be produced, which increases the application range of the quick-insertion mechanism and enables it to be applied to various equipment involving air paths.

[0030] Among them; the top of the block 13 is set with an inclined surface at the corner away from the connecting seat 11, and the block 13 is located at the midline of the front and back planes of the connecting seat 11. When the quick-plug shell 2 is connected with the connecting seat 11, the inclined surface of the block 13 can prop open the quick-plug shell 2, so that the quick-plug shell 2 can be pressed and clamped smoothly, and then it has a non-return effect after the quick-plug shell 2 is clamped.

[0031] Among them; the single-sided corner of the guide slider 12 away from the connecting seat 11 is set to a rounded corner, and the radius of the rounded corner corresponds to the radius of the arc on the outer edge of the quick-plug shell 2. The rounded corner at the end of the guide slider 12 cooperates with the quick-plug shell 2 so that after the quick-plug shell 2 is plugged in, the outer surface of the plug-in point is still in a smooth state to avoid the protruding structure from scratching the palm during the installation process.

[0032] Among them; the outer edge of the bead 14 is an annular slope, and the top of the bead 14 overlaps with the bottom of the sealing gasket 4, the bead 14 is in pressure contact with the sealing gasket 4, based on the sealing gasket 4 itself has sufficient toughness, so that the bead 14 can sink into the sealing gasket 4, thereby improving the sealing effect.

[0033] Among them; the card slot 6 is a sealed strip-shaped through slot, the height and width of the inner wall of the card slot 6 correspond to the height and width of the card block 13, and after the quick-plug shell 2 and the quick socket 1 are connected, the card slot 6 can be used to lock the card block 13 to prevent it from detaching and leaking due to gas pressure.

[0034] Among them; the bottom of the slide groove 7 is an open straight-through opening, the width of the inner wall of the slide groove 7 corresponds to the width of the guide slider 12, and the sliding of the slide groove 7 and the guide slider 12 is used to limit the clamping process of the quick-connect shell 2 to prevent it from rotating and causing wear of the sealing gasket 4.

[0035] Wherein; the inner wall of the sealing gasket 4 adopts a double-layer sealing setting, such as Figure 2 As shown, the sealing gasket 4 has two layers of hoops inside that are in contact with the pipe 3 , the one near the top is used for dust prevention, and the one near the bottom is used for gas sealing, thereby improving the sealing effect of the sealing gasket 4 .

[0036] Working principle: when using the quick-insertion mechanism, first, place the catch 5 in the quick-insertion socket 1, then pass one end of the pipe 3 through the middle of the quick-insertion shell 2 and deep into the quick-insertion socket 1. After the pipe 3 is stable, press and slide the quick-insertion shell 2 to cover the quick-insertion socket 1, and use the slide groove 7 to slide along the guide slider 12 until the slot 6 is engaged to fix the quick-insertion shell 2.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-insert mechanism for gas line connection, characterized in that: include: A quick socket (1), the quick socket (1) being a base arranged on a gas path connection port for plugging, the quick socket (1) being provided with a quick plug shell (2) for plugging at the top, the quick plug shell (2) being provided with a pipe (3) penetrating the top, the bottom end of the pipe (3) passing through the quick plug shell (2) and extending to the inside of the quick socket (1), a sealing gasket (4) and a catch (5) being provided between the quick socket (1) and the quick plug shell (2), respectively, the sealing gasket (4) and the catch (5) both being sleeved on the surface of the pipe (3); The quick socket (1) comprises a connection seat (11), the front and back sides of the connection seat (11) are integrally provided with a clamping block (13), both sides of the connection seat (11) are provided with a guide slider (12), and the two guide sliders (12) are symmetrically arranged with the clamping block (13) as an axis, the top of the connection seat (11) is integrally provided with a convex ring (14), the inner wall of the connection seat (11) near the top is provided with a buckle groove (15), and the catch (5) is located inside the buckle groove (15); A clamping groove (6) and a sliding groove (7) are respectively provided on the surface of the quick-insertion housing (2); the positions of the clamping groove (6) and the sliding groove (7) respectively correspond to the positions of the clamping block (13) and the guide sliding block (12).

2. The quick-insertion mechanism for gas line connection according to claim 1, characterized in that: The connection seat (11) is an inverted T-shaped base, the middle portion of the connection seat (11) is a straight tube for plugging, and both the front and back sides of the connection seat (11) are cut with flat surfaces to form an elliptical tube shape.

3. The quick-insertion mechanism for gas line connection according to claim 2, characterized in that: The top of the clamping block (13) is provided with an inclined surface at a corner away from the connecting seat (11), and the clamping block (13) is located at the midline of the front and rear planes of the connecting seat (11).

4. The quick-insertion mechanism for gas line connection according to claim 1, characterized in that: The single-side corner of the guide sliding block (12) away from the connecting seat (11) is configured as a rounded corner, and the radius of the rounded corner corresponds to the radius of the outer arc of the quick-connect housing (2).

5. The quick-insertion mechanism for gas line connection according to claim 1, characterized in that: The outer edge of the raised ring (14) is an annular inclined surface, and the top of the raised ring (14) overlaps the bottom of the sealing gasket (4).

6. The quick-insertion mechanism for gas line connection according to claim 1, characterized in that: The clamping slot (6) is a sealed strip-shaped through slot, and the height and width of the inner wall of the clamping slot (6) correspond to the height and width of the clamping block (13).

7. The quick-insertion mechanism for gas line connection according to claim 1, characterized in that: The bottom of the slide groove (7) is an open straight-through opening, and the width of the inner wall of the slide groove (7) corresponds to the width of the guide sliding block (12).

8. The quick-insertion mechanism for gas line connection according to claim 1, characterized in that: The inner wall of the sealing pad (4) adopts a double-layer sealing arrangement.

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