Quick connector under pressure

Abstract

The utility model relates to a connecting device capable of being quickly disassembled and assembled, in particular to a quick connector under pressure. A quick connector with pressure comprises a male connector and a female connector, the male connector comprises a plug and a plug connector body, the female connector comprises a shell and a shell connector body, the outer wall of the front portion of the shell connector body is sleeved with a shell valve sleeve a, plug valve seats are arranged at the front end of the shell connector body and the inner wall of the shell valve sleeve in a clamped mode, plug valve element sleeves are arranged in the plug valve seats, and plug valve element sleeves are arranged in the plug valve element sleeves. A plug valve element sleeve valve seat is arranged on the inner wall of the rear portion of the plug valve element sleeve, a plug valve element sleeve valve element is arranged in the plug valve element sleeve valve seat and the plug valve element sleeve, a plug valve element rod is arranged on the inner wall of the front portion of the plug valve element sleeve, the plug valve element rod is sleeved with a plug valve element, and the plug valve element is arranged in a shell valve sleeve a. And a plug valve core sleeve spring is arranged between the plug valve core sleeve valve seat and the plug valve core sleeve valve core. The pressure relief valve has the advantages that the pressure relief valve is suitable for operation under pressure, the plug valve element rod ejects the plug valve element sleeve valve element, the partial pressure relief effect is achieved, and therefore the pressure intensity is small.

Description

Technical Field

[0001] The utility model relates to a quick disassembly and assembly connection device, in particular to a pressure-bearing quick connector. Background Art

[0002] Quick connectors include hydraulic quick connectors and various fluid quick connectors. They are a type of connection device that quickly connects or disconnects pipes and enables quick assembly and disassembly. Since quick connectors have a two-way non-return function and there is no leakage when the pipe is disconnected, they are widely used in the fields of petroleum, metallurgy, hydropower, engineering machinery, ships, electromechanical equipment, etc. The quick connector connection structure is the most important part of the quick connector. Its connection method and structure directly determine the ease of use, reliability and product quality of the quick connector. The quick connector consists of two parts, a female connector and a male connector. Existing quick connectors cannot be rotated when installed at the connection end, which is inconvenient to use. Sometimes there is residual pressure inside, making the commonly used structure difficult to operate and may affect the use effect and safety of the quick connector. Summary of the Invention

[0003] In order to solve the above technical problems of difficulty in operation due to residual pressure inside and inability to rotate when connected, the utility model provides a pressurized quick connector.

[0004] The technical solution of the utility model is as follows:

[0005] A pressure quick connector comprises a male connector and a female connector, the male connector comprises a plug and a plug connector body, the female connector comprises a shell and a shell connector body, a shell valve sleeve a is provided on the front outer wall of the shell connector body, a plug valve seat is clamped on the front end of the shell connector body and the inner wall of the shell valve sleeve, a plug valve core sleeve is provided in the plug valve seat, a plug valve core sleeve valve seat is provided on the rear inner wall of the plug valve core sleeve, a plug valve core sleeve valve core is provided in the plug valve core sleeve valve seat and the plug valve core sleeve, a plug valve core rod is provided on the front inner wall of the plug valve core sleeve, the plug valve core rod is sleeved in the plug valve core, the plug valve core is provided in the shell valve sleeve a, a plug valve core sleeve spring is provided between the plug valve core sleeve valve seat and the plug valve core sleeve valve core, a plug valve core sleeve retaining ring is provided on the front outer wall of the plug valve core sleeve, a plug valve seat spring is provided between the plug valve seat and the plug valve core sleeve retaining ring, a plug valve seat spring is provided between the plug valve seat and the plug valve core sleeve retaining ring, a plug valve seat is provided between the plug valve seat and the plug valve core rod Head valve core spring, a shell connector is provided on the outer wall of the shell joint body and the shell valve sleeve a, a shell is provided on the front outer wall of the shell connector, a bushing spring gasket is provided on the front inner wall of the shell connector, a shell connector spring is provided between the shell joint body and the shell valve sleeve a, a shell bushing is provided on the front inner wall of the shell, a shell bushing spring is provided between the bushing spring gasket and the shell bushing, an outer sleeve is provided on the front outer wall of the shell, the outer sleeve and the chrome steel ball, the chrome steel ball passes through the groove, a jacket spring is provided between the shell and the outer sleeve, a plug is provided on the front inner wall of the plug joint body, a shell valve seat is provided on the inner wall of the plug joint body, a shell valve sleeve seat is provided in front of the shell valve seat, a shell valve core is provided in the shell valve seat, a shell valve sleeve b is provided in the shell valve sleeve seat, a bushing is provided on the front inner wall of the plug, a shell valve sleeve spring is provided between the shell valve sleeve b and the shell valve sleeve seat, and a bushing spring is provided between the bushing and the shell valve sleeve seat.

[0006] The outer wall of the shell joint body is stepped, the rear diameter is larger than the front diameter, the front outer wall of the shell joint body is connected to the shell valve sleeve a, the front outer wall of the shell joint body is provided with a shell valve sleeve O-ring, the rear end of the shell valve sleeve a is provided with a convex ring, a notch is provided on the left side of the convex ring, a spring copper washer b is provided at the notch, the spring copper washer b is located at the step angle a, the left inner wall of the shell connector is provided with a spring copper washer a, a shell connector spring is provided between the spring copper washer a and the spring copper washer b, a bushing spring gasket is provided on the right side of the convex ring, the front inner wall of the shell valve sleeve a is recessed and provided with a plug plastic king and a plug O-ring, the outer wall of the shell valve sleeve a is stepped, the step angle b has an inclined surface, the front diameter is smaller than the middle diameter, the outer wall is smooth, the shell bushing is Z-shaped, the front inner wall of the shell bushing is in contact with the front outer wall of the shell valve sleeve a, the shell bushing as a whole is in contact with the middle outer wall of the shell valve sleeve a, the rear end of the shell bushing is stuck in the shell groove, and the groove is behind the chrome steel ball.

[0007] The rear part of the plug valve seat is larger than the front part, and the outer wall of the rear part of the plug valve seat contacts the inner wall of the shell valve sleeve a. The outer wall of the rear part of the plug valve seat is recessed and provided with a plug valve seat O-ring and a plug valve seat plastic king. There are two plug valve seat plastic kings, and a plug valve seat O-ring is provided between the plug valve seat plastic kings. An oblique flow port is opened at the rear part of the plug valve seat, the inner wall of the front part of the plug valve seat is stepped, and the inner wall of the rear part of the plug valve seat is inclined, and the inclined surface contacts the rear sleeve of the plug valve core sleeve. The outer wall of the rear sleeve is recessed and provided with a sealing gasket, and the inner wall of the rear sleeve is provided with a plug valve core sleeve retaining ring a The front part of the rear sleeve is a straight rod body, and the rear sleeve is connected to the straight rod body through a step body. A pressure relief hole is provided at the rear and middle of the straight rod body. A plug valve core sleeve plastic ring is provided on the inner wall of the rear sleeve. The plug valve core sleeve plastic ring is in contact with the middle connector of the plug valve core sleeve valve core. The front inner wall of the plug valve seat is provided with two sections of smooth walls. The two sections of smooth walls are distributed to accommodate the plug valve core spring and the plug valve seat spring. A flow channel is provided laterally on the plug valve core sleeve valve seat. A plug valve core sleeve retaining ring b is provided on the front outer wall of the plug valve core sleeve. The plug valve core sleeve retaining ring b is in contact with the plug valve core sleeve retaining ring gasket.

[0008] An outer sleeve retaining ring is provided on the front outer wall of the plug.

[0009] A plug connector O-ring is provided at the connection between the plug connector body and the plug.

[0010] The outer wall of the housing valve sleeve seat is recessed and provided with a housing valve sleeve seat O-ring b, and the inner wall of the housing valve sleeve seat is recessed and provided with a housing valve sleeve seat O-ring a and a plug plastic king.

[0011] The outer wall of the housing valve core is recessed and provided with a housing valve core O-ring.

[0012] The plug valve core sleeve valve core includes an intermediate connecting body, the left side of the intermediate connecting body is rod body a, the right side of the intermediate connecting body is rod body b and rod body c in sequence, the diameter of rod body b is smaller than the diameter of rod body a and rod body c, the outer walls of rod body a, rod body b and rod body c are smooth, rod body b and rod body c are connected by an inclined surface, the intermediate connecting body is a combination of a frustum and a cylinder, the number of the combined bodies is two, the front outer wall of the front combination is provided with an inclined surface, the inclined surface is in contact with the plastic ring of the plug valve core sleeve, the outer wall of the rear combination is a vertical wall, and the plug valve core sleeve spring is connected to the vertical wall.

[0013] A fixed body is provided at the front end of the plug valve core rod, the fixed body is connected to the rod body d through a connecting block, and the plug valve core spring is connected to the fixed body.

[0014] The rear end of the shell joint body and the outer wall of the middle part of the shell are provided with a hexagonal body, the front inner wall of the shell and the front outer wall of the plug are connected through threads, and the front outer wall of the plug is provided with a retaining groove.

[0015] The technical solution of the utility model has a novel structure, a clever and simple design, and is suitable for pressure operation. The plug valve core rod pushes the plug valve core sleeve valve core to play a partial pressure relief role. Because the pressure is small and easy to operate, the plug valve core sleeve is pushed to open the flow channel. The shell joint body and the shell valve sleeve a are annular bodies, and the shell connecting body and the shell are also annular bodies. The latter is sleeved on the former, which is convenient for operation during connection and improves the performance parameters of the quick connector; it is simple to process, the connection is convenient and quick, the strength is high, and the resistance to shortage is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the female connector in the utility model;

[0018] Figure 3 It is a structural diagram of the male connector in the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example

[0021] like Figure 1 、 23 shows a pressurized quick connector, comprising a male connector and a female connector, wherein the male connector comprises a plug 45 and a plug connector body 32, and the female connector comprises a shell 1 and a shell connector body 2, wherein the front outer wall of the shell connector body 2 is provided with a shell valve sleeve a27, and a plug valve seat 3 is clamped on the front end of the shell connector body 2 and the inner wall of the shell valve sleeve a27, wherein the plug valve seat 3 is provided with a plug valve core sleeve 20, and the rear inner wall of the plug valve core sleeve 20 is provided with a plug valve core sleeve valve seat 16, and the plug valve core sleeve valve seat 16 and the plug valve core sleeve 20 are provided with a plug valve The plug valve core sleeve 19, the plug valve core sleeve 20 front inner wall is provided with a plug valve core rod 8, the plug valve core rod 8 is sleeved in the plug valve core 4, the plug valve core 4 is provided in the housing valve sleeve a27, a plug valve core sleeve spring 18 is provided between the plug valve core sleeve valve seat 16 and the plug valve core sleeve valve core 19, the plug valve core sleeve 20 front outer wall sleeve is provided with a plug valve core sleeve retaining ring gasket 11, a plug valve seat spring 12 is provided between the plug valve seat 3 and the plug valve core sleeve retaining ring gasket 11, a plug valve core spring 7 is provided between the plug valve seat 3 and the plug valve core rod 8, the housing is connected A housing connector 22 is provided on the outer wall of the head body 2 and the housing valve sleeve a27. The front outer wall of the housing connector 22 is sleeved with the housing 1. A bushing spring gasket 24 is provided on the inner wall of the front end of the housing connector 22. A housing connector spring 23 is provided between the housing connector 22 and the housing valve sleeve a27. A housing bushing 28 is provided on the front inner wall of the housing 1. A housing bushing spring 30 is provided between the bushing spring gasket 24 and the housing bushing 28. A jacket 31 is provided on the front outer wall of the housing 1. The jacket 31 and the chrome steel ball 29 are inserted into the groove. A jacket spring 25 is provided between the shell 1 and the jacket 31, a plug 31 is provided on the front inner wall of the plug connector body 32, a shell valve seat 36 is provided on the inner wall of the plug connector body 32, a shell valve seat 36 is provided in front of the shell valve seat 36, a shell valve sleeve seat 43 is provided in front of the shell valve seat 36, a shell valve core 44 is provided in the shell valve seat 36, a shell valve sleeve b42 is provided in the shell valve sleeve seat 43, a sleeve 38 is provided on the front inner wall of the plug 31, a shell valve sleeve spring 39 is provided between the shell valve sleeve b42 and the shell valve sleeve seat 43, and a sleeve spring 40 is provided between the sleeve 38 and the shell valve sleeve seat 43.

[0022] The outer wall of the shell joint body 2 is stepped, and the rear diameter is larger than the front diameter. The front outer wall of the shell joint body 2 is connected to the shell valve sleeve a27. The outer wall of the front end of the shell joint body 2 is provided with a shell valve sleeve O-ring 5. The rear end of the shell valve sleeve a27 is provided with a convex ring. A notch is provided on the left side of the convex ring. A spring copper washer b is provided at the notch. The spring copper washer b is located at the step angle a. A spring copper washer a21 is provided on the inner wall of the left side of the shell connector 22. A shell connector spring 23 is provided between the spring copper washer a21 and the spring copper washer b. The right side of the convex ring is provided with a spring copper washer b. A bushing spring gasket 24 is provided, and the front inner wall of the housing valve sleeve a27 is recessed and provided with a plug plastic king 6 and a plug O-ring 9. The outer wall of the housing valve sleeve a27 is stepped, and the step angle b has an inclined surface. The front diameter is smaller than the middle diameter, and the outer wall is smooth. The housing bushing 28 is Z-shaped, and the front inner wall of the housing bushing 28 contacts the front outer wall of the housing valve sleeve a27. The housing bushing 28 as a whole is in contact with the middle outer wall of the housing valve sleeve a27. The rear end of the housing bushing 28 is stuck in the groove of the housing 1, and the groove is behind the chrome steel ball 29.

[0023] The rear part of the plug valve seat 3 is larger than the front part, and the outer wall of the rear part of the plug valve seat 3 contacts the inner wall of the shell valve sleeve a27. The outer wall of the rear part of the plug valve seat 3 is recessed and provided with a plug valve seat O-ring 13 and a plug valve seat plastic king 14. There are two plug valve seat plastic kings 14. A plug valve seat O-ring 13 is provided between the plug valve seat plastic kings 14. An oblique hole is opened at the rear part of the plug valve seat 3. The inner wall of the front part of the plug valve seat 3 is stepped. The inner wall of the rear part of the plug valve seat 3 is inclined. The inclined surface contacts the rear sleeve of the plug valve core sleeve 20. The outer wall of the rear sleeve is recessed and provided with a sealing gasket. The inner wall of the rear sleeve is provided with a plug valve core sleeve retaining ring a1 7. The front part of the rear sleeve is a straight rod body, and the rear sleeve is connected to the straight rod body through a step body. A pressure relief hole is provided at the rear and middle of the straight rod body. A plug valve core sleeve plastic ring 15 is provided on the inner wall of the rear sleeve. The plug valve core sleeve plastic ring 15 contacts the middle connector of the plug valve core sleeve valve core 19. The front inner wall of the plug valve seat 3 is provided with two sections of smooth walls. The two sections of smooth walls are distributed to accommodate the plug valve core spring 7 and the plug valve seat spring 12. The plug valve core sleeve valve seat 16 is laterally provided with a flow channel. The front outer wall of the plug valve core sleeve 20 is provided with a plug valve core sleeve retaining ring b10, which contacts the plug valve core sleeve retaining ring gasket 11.

[0024] An outer sleeve retaining ring 26 is provided on the front outer wall of the plug 1 .

[0025] A plug connector O-ring 33 is provided at the connection between the plug connector body 32 and the plug 31 .

[0026] The outer wall of the housing valve sleeve seat 43 is recessed to form a housing valve sleeve seat O-ring b35 , and the inner wall of the housing valve sleeve seat 43 is recessed to form a housing valve sleeve seat O-ring a34 and a plug plastic king 41 .

[0027] The outer wall of the housing valve core 44 is recessed to form a housing valve core O-ring 37 .

[0028] The plug valve core sleeve valve core 19 includes an intermediate connecting body, the left side of the intermediate connecting body is the rod body a, the right side of the intermediate connecting body is the rod body b and the rod body c in sequence, the diameter of the rod body b is smaller than the diameter of the rod body a and the rod body c, the outer walls of the rod bodies a, b and c are smooth, the rod bodies b and c are connected by an inclined surface, the intermediate connecting body is a combination of a truncated cone and a cylinder, the number of the combined bodies is two, the front outer wall of the front side of the combination is provided with an inclined surface, the inclined surface is in contact with the plug valve core sleeve plastic ring 15, the outer wall of the rear side of the combination is a vertical wall, and the plug valve core sleeve spring 18 is connected to the vertical wall.

[0029] A fixed body is provided at the front end of the plug valve core rod 8, which is connected to the rod body d through a connecting block, and the plug valve core spring 7 is connected to the fixed body.

[0030] The rear end of the housing joint body 2 and the middle outer wall of the housing 1 are provided with a hexagonal body, the front inner wall of the housing 1 and the front outer wall of the plug 45 are connected by threads, and the front outer wall of the plug 45 is provided with a stop groove.

[0031] When in use, the rear of the housing joint body 2 and the rear of the plug joint body 32 are connected to the equipment pressure source, and the housing connector 22 and the housing 1 are combined to rotate independently, so that the operation is completed. The left end of the plug 45 pushes the housing bushing 28 to the left and is threadedly connected to the housing 1. The chrome steel ball 29 and the stop groove are locked and the plug 45 and the housing 1 are fixed with threads. It is a double-layer safety setting. The housing valve sleeve a27 pushes the bushing 38 Moving to the right, the shell valve core 44 pushes the plug valve core 4, causing the rod body d of the plug valve core rod 8 to move to the left. The plug valve core sleeve 20 has a pressure relief hole, and the pressure in this part is small. The rod body d first drives the rod body c to move to the left, opening the first part of the flow channel space, and then the rear connecting block pushes the plug valve core sleeve 20 to make the rear sleeve away from the plug valve seat 3. The shell valve sleeve b42 blocks the front of the shell valve sleeve a27, and there are plug plastic king 6 and plug O-ring 9 on the inside to improve the sealing effect. The shell valve sleeve b42 also blocks the shell valve sleeve seat 43, and there are shell valve sleeve seat O-ring a34 and plug plastic king 41 on the inside to improve the sealing effect. The front of the shell valve core 44 and the front oblique wall of the shell valve sleeve a27 form a flow channel. There is a gap between the plug valve core 4 and the smooth wall in the middle of the shell valve sleeve a27, which also forms a flow channel. The flow channel is connected through the oblique flow port.

[0032] It should be understood that the above description is only a preferred embodiment of the present invention and is not sufficient to limit the technical solutions of the present invention. For ordinary technicians in this field, within the spirit and principles of the present invention, additions, substitutions, changes or improvements can be made according to the above description, and all these additions, substitutions, changes or improvements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A pressurized quick connector, comprising a male connector and a female connector, characterized in that: The male connector comprises a plug (45) and a plug connector body (32), and the female connector comprises a shell (1) and a shell connector body (2). The front outer wall of the shell connector body (2) is provided with a shell valve sleeve a (27), the front end of the shell connector body (2) and the inner wall of the shell valve sleeve a (27) are provided with a plug valve seat (3), a plug valve core sleeve (20) is provided in the plug valve seat (3), a plug valve core sleeve valve seat (16) is provided on the rear inner wall of the plug valve core sleeve (20), a plug valve core sleeve valve core (19) is provided in the plug valve core sleeve valve seat (16) and the plug valve core sleeve (20), and a plug valve core sleeve valve core (19) is provided on the front inner wall of the plug valve core sleeve (20). The plug valve core rod (8) is sleeved in the plug valve core (4), the plug valve core (4) is arranged in the housing valve sleeve a (27), a plug valve core sleeve spring (18) is provided between the plug valve core sleeve valve seat (16) and the plug valve core sleeve valve core (19), a plug valve core sleeve retaining ring (11) is sleeved on the front outer wall of the plug valve core sleeve (20), a plug valve seat spring (12) is provided between the plug valve seat (3) and the plug valve core sleeve retaining ring (11), a plug valve core spring (7) is provided between the plug valve seat (3) and the plug valve core rod (8), and a housing joint body (2) and a housing valve sleeve a (27) are provided on the outer wall. A shell connector (22) is provided with a shell (1) on the front outer wall of the shell connector (22), a bushing spring washer (24) is provided on the front inner wall of the shell connector (22), a shell connector spring (23) is provided between the shell connector (22) and the shell valve sleeve a (27), a shell bushing (28) is provided on the front inner wall of the shell (1), a shell bushing spring (30) is provided between the bushing spring washer (24) and the shell bushing (28), a jacket (31) is provided on the front outer wall of the shell (1), the jacket (31) and the chrome steel ball (29), the chrome steel ball (29) penetrates the groove, and the shell (1) and the jacket (31) are provided. ), a jacket spring (25) is provided between the plug connector body (32), a plug (31) is provided on the inner wall of the front portion of the plug connector body (32), a housing valve seat (36) is provided on the inner wall of the plug connector body (32), a housing valve sleeve seat (43) is provided in front of the housing valve seat (36), a housing valve core (44) is provided in the housing valve seat (36), a housing valve sleeve b (42) is provided in the housing valve sleeve seat (43), a bushing (38) is provided on the inner wall of the front portion of the plug (31), a housing valve sleeve spring (39) is provided between the housing valve sleeve b (42) and the housing valve sleeve seat (43), and a bushing spring (40) is provided between the bushing (38) and the housing valve sleeve seat (43).

2. The pressurized quick connector according to claim 1, characterized in that: The outer wall of the housing joint body (2) is stepped, and the rear diameter is larger than the front diameter. The front outer wall of the housing joint body (2) is connected to the housing valve sleeve a (27). The front outer wall of the housing joint body (2) is provided with a housing valve sleeve O-ring (5). The rear end of the housing valve sleeve a (27) is provided with a convex ring. A notch is provided on the left side of the convex ring. A spring copper washer b is provided at the notch. The spring copper washer b is located at the step angle a. A spring copper washer a (21) is provided on the inner wall of the left side of the housing connector (22). A housing connector spring (23) is provided between the spring copper washer a (21) and the spring copper washer b. A lining is provided on the right side of the convex ring. The spring gasket (24) is provided on the front inner wall of the housing valve sleeve a (27), and a plug plastic king (6) and a plug O-ring (9) are provided. The outer wall of the housing valve sleeve a (27) is stepped, and the step angle b has an inclined surface. The front diameter is smaller than the middle diameter, and the outer wall is smooth. The housing bushing (28) is Z-shaped, and the front inner wall of the housing bushing (28) contacts the front outer wall of the housing valve sleeve a (27). The housing bushing (28) as a whole is in contact with the middle outer wall of the housing valve sleeve a (27). The rear end of the housing bushing (28) is stuck in the groove of the housing (1), and the groove is on the rear side of the chrome steel ball (29).

3. The pressurized quick connector according to claim 1, characterized in that: The rear of the plug valve seat (3) is larger than the front, and the outer wall of the rear of the plug valve seat (3) contacts the inner wall of the housing valve sleeve a (27). The outer wall of the rear of the plug valve seat (3) is recessed and provided with a plug valve seat O-ring (13) and a plug valve seat plastic king (14). The number of the plug valve seat plastic kings (14) is two, and a plug valve seat O-ring (13) is provided between the plug valve seat plastic kings (14). The rear of the plug valve seat (3) is provided with an oblique flow port, the inner wall of the front of the plug valve seat (3) is stepped, and the inner wall of the rear of the plug valve seat (3) is inclined, and the inclined surface contacts the rear sleeve of the plug valve core sleeve (20). The outer wall of the rear sleeve is recessed and provided with a sealing gasket. The inner wall of the rear sleeve is provided with a plug valve core sleeve retaining ring a (17), the front part of the rear sleeve is a straight rod body, the rear sleeve is connected to the straight rod body through a step body, and a pressure relief hole is provided at the rear and middle of the straight rod body. The inner wall of the rear sleeve is provided with a plug valve core sleeve plastic ring (15), and the plug valve core sleeve plastic ring (15) contacts the middle connecting body of the plug valve core sleeve valve core (19). The inner wall of the front part of the plug valve seat (3) is provided with two sections of smooth walls, and the two sections of smooth walls are distributed to accommodate the plug valve core spring (7) and the plug valve seat spring (12). The plug valve core sleeve valve seat (16) is provided with a flow channel in the transverse direction. The outer wall of the front part of the plug valve core sleeve (20) is provided with a plug valve core sleeve retaining ring b (10), and the plug valve core sleeve retaining ring b (10) contacts the plug valve core sleeve retaining ring gasket (11).

4. The pressurized quick connector according to claim 1, characterized in that: The front outer wall of the plug (1) is provided with an outer sleeve retaining ring (26).

5. The pressurized quick connector according to claim 1, characterized in that: A plug connector body O-ring (33) is provided at the connection between the plug connector body (32) and the plug (31).

6. The pressurized quick connector according to claim 1, characterized in that: The outer wall of the housing valve sleeve seat (43) is recessed and provided with a housing valve sleeve seat O-ring b (35), and the inner wall of the housing valve sleeve seat (43) is recessed and provided with a housing valve sleeve seat O-ring a (34) and a plug plastic king (41).

7. The pressurized quick connector according to claim 1, characterized in that: The outer wall of the housing valve core (44) is recessed and provided with a housing valve core O-ring (37).

8. The pressurized quick connector according to claim 3, characterized in that: The plug valve core sleeve valve core (19) includes an intermediate connecting body, the left side of the intermediate connecting body is the rod body a, the right side of the intermediate connecting body is the rod body b and the rod body c in sequence, the diameter of the rod body b is smaller than the diameter of the rod body a and the rod body c, the outer walls of the rod bodies a, b and c are smooth, the rod bodies b and c are connected by an inclined surface, the intermediate connecting body is a combination of a truncated cone and a cylinder, the number of the combined bodies is two, the outer wall of the front part of the front combination is provided with an inclined surface, the inclined surface is in contact with the plastic ring (15) of the plug valve core sleeve, the outer wall of the rear combination is a vertical wall, and the plug valve core sleeve spring (18) is connected to the vertical wall.

9. The pressurized quick connector according to claim 1, characterized in that: A fixed body is provided at the front end of the plug valve core rod (8), the fixed body being connected to the rod body d via a connecting block, and the plug valve core spring (7) being connected to the fixed body.

10. The pressurized quick connector according to claim 1, characterized in that: The rear end of the housing joint body (2) and the middle outer wall of the housing (1) are provided with a hexagonal body, the front inner wall of the housing (1) and the front outer wall of the plug (45) are connected by threads, and the front outer wall of the plug (45) is provided with a stop groove.

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