Quick release connector

Abstract

The quick release connector comprises a quick plug type male head and a quick plug type female head, the quick plug type male head comprises a male head connector body, a male head main body and a male head valve seat, the male head connector body and the male head main body are coaxially, fixedly and hermetically connected, and the male head main body is provided with a male head main body large end and a male head main body small end; the male head valve seat is located in the large end of the male head body and is in elastic sliding connection with the male head connector body through the male head spring, and the male head valve seat divides an inner cavity of the male head body into a male head body large cavity and a male head body small cavity which are mutually sealed through the second sealing ring under the action of the male head spring. And the male head valve seat is coaxially and fixedly connected with a male head valve core. The quick-plug type connector is simple in structure, few in parts, low in cost, light in weight, easy to maintain, high in cost performance and quick to operate, quick connection and disconnection of pipelines can be achieved without other auxiliary tools, the connection sealing performance is good, and the quick-plug type male head and the quick-plug type female head have the self-sealing performance after disconnection.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection, in particular to a quick-release joint. Background Art

[0002] In the industrial field, especially in industries such as machinery, chemical industry, energy, and aerospace, the installation and maintenance of pipeline systems is a common and important task. As a device that can quickly and easily connect and disconnect pipelines, quick-release connectors are favored because of their self-sealing and easy operation. They not only improve work efficiency, but also reduce the risk of leakage caused by frequent disassembly and assembly. There are still some shortcomings in the existing quick-release connectors. For example, the Chinese patent with application number 202180031540.4 discloses a quick-release connector, but its structure is relatively complex, which not only increases the difficulty of manufacturing and assembly, but also increases production costs, ultimately affecting market competitiveness and user acceptance. In addition, the complex structure may also affect the reliability and stability of the connector during use, thereby increasing the frequency of maintenance and overhaul. Therefore, from the perspective of reducing production costs, improving product cost performance, and enhancing market competitiveness, it is particularly urgent and necessary to optimize the structure of the quick-release connector of the prior art. Summary of the invention

[0003] The object of the present invention is to provide a quick release joint with a simple structure and low cost, so as to solve the problems in the background art that the existing quick release joint has a complex structure, is difficult to process and has a high cost.

[0004] To achieve the above object, the present invention provides the following technical solutions: A quick release connector, comprising a quick-insert male connector and a quick-insert female connector, the quick-insert male connector comprising a male connector body, a male main body and a male valve seat, the male connector body is coaxially fixedly sealed with the male main body, the male main body is provided with a male main body large end and a male main body small end, the male valve seat is located inside the male main body large end and is elastically slidably connected with the male connector body through a male spring, the male valve seat divides the male main body inner cavity into a male main body large cavity and a male main body small cavity sealed to each other through a second sealing ring under the action of the male spring, the male valve seat is coaxially fixedly connected with a male valve core, the quick-insert female connector comprises a female main body, a female valve core, and a female connector body, one end of the female main body is provided with The locking mechanism has the other end coaxially fixedly connected with the female joint body, a female spring is arranged in the female joint body, a female positioning ring and a female valve seat are fixedly arranged in the middle part of the female main body, the female valve core is elastically slidingly and sealingly connected with the female valve seat under the action of the female spring, a female push rod is fixedly arranged at one end of the female valve core, after the small end of the male main body is inserted into the quick-plug female, the locking mechanism can lock the axial position of the small end of the male main body, and at the same time, the male valve core presses against the female push rod and presses the male spring and the female spring against each other, the male valve seat moves axially toward the male joint body, the large cavity of the male main body is connected to the small cavity of the male main body, the female valve core moves axially toward the female joint body, and the inner hole of the female valve seat is connected to the cavity of the female joint body.

[0005] Furthermore, one end of the male connector body is a hexagonal head with an internal threaded hole on the end face, and the other end is provided with an external threaded end. A first sealing ring is provided at the root of the external threaded end. The external threaded end is threadedly connected to the large end of the male body and is sealed to the male body through the first sealing ring.

[0006] Furthermore, the male valve seat includes a valve seat cylinder and a valve seat block, the valve seat cylinder and the valve seat block are coaxially fixedly connected, a spring seat hole is provided on the end face of the external threaded end, one end of the male spring is located in the spring seat hole, and the other end is located in the valve seat cylinder, the valve seat cylinder is sleeved in the spring seat hole, a through hole is provided on the valve seat cylinder, a valve seat block sealing ring groove is provided on the outer end face of the valve seat block, the second sealing ring is installed in the valve seat block sealing ring groove, the inner cavity of the male body includes a male body large cavity and a male body small cavity, the male body large cavity and the male body small cavity are transitionally connected by an inner conical surface, and the second sealing ring is pressed against the inner conical surface under the action of the male spring.

[0007] Furthermore, a cone is fixedly provided at one end of the male valve core, the cone inclination of the cone is the same as the inclination of the inner cone surface, a chamfer is provided on the bottom surface of the cone, and after the male valve core is fixedly connected to the male valve seat through threads, the chamfer cooperates with the sealing ring groove of the valve seat block to form a semi-enclosed space of the second sealing ring, and an inner concave hemispherical surface is provided on the end surface of the other end of the male valve core, and a retaining block is coaxially fixedly provided on the male valve core near the inner concave hemispherical surface, the outer diameter of the retaining block matches the aperture of the small cavity of the male body, and the retaining block is evenly distributed with a number of notches.

[0008] Furthermore, the locking mechanism includes a female button and a button spring, the female button is provided with an eccentric through hole, one end of the eccentric through hole is provided with a slot, the slot is coaxial with the eccentric through hole, the other end of the eccentric through hole is eccentrically milled with an arc to form a bulge at the connection between the eccentric through hole and the slot, one end of the female body is provided with a button mounting hole, the button mounting hole is perpendicular to the axis of the female body and does not pass through the female body, the bottom of the button mounting hole is provided with a button spring mounting hole, the button spring is placed in the button spring mounting hole, the female button is located in the button mounting hole, one end of the female positioning ring extends into the slot to limit the female button from moving toward the opening end of the button mounting hole, and a check ring is provided on the small end of the male body, and the width of the check ring is smaller than the width of the slot.

[0009] Furthermore, the check ring is provided with a first inclined surface intersecting with the small end of the male body, the first inclined surface is facing the small end of the male body, the protrusion is provided with a second inclined surface intersecting with the inner wall of the eccentric through hole, the second inclined surface is facing away from the slot, the female positioning ring is provided with a third inclined surface, the third inclined surface is facing the female button, and the inclinations of the first inclined surface, the second inclined surface and the third inclined surface are the same.

[0010] Furthermore, a retaining ring is provided in the middle part of the female head main body, a stopper is provided at one end of the female head positioning ring, the female head positioning ring is matched and extends into the retaining ring and the stopper is flush with the side surface of the retaining ring, the female head valve seat is flush with the female head positioning ring, the female head connector body is threadedly connected to the female head main body and the end face is tightly pressed against the female head valve seat, the inner ring of the female head valve seat is installed with a third sealing ring, and the outer ring of the female head valve seat is installed with a fourth sealing ring.

[0011] Furthermore, the female valve core is a cone valve, and the female valve core is provided with a plurality of positioning blocks evenly distributed circumferentially near the cone head, the outer diameter of the positioning block matches the aperture of the inner cavity of the female connector body, one end of the positioning block is flush with the end face of the female valve seat, the female spring is located in the inner cavity of the female connector body and one end is flush with the bottom of the inner cavity of the female connector body, and the other end presses the positioning block, and the tail of the female valve core is provided with a plurality of sliding blocks evenly distributed circumferentially, the sliding blocks are matched and extend into the inner hole of the female valve seat, and the female valve core is provided with a fifth sealing ring for sealing with the female valve seat.

[0012] Furthermore, the female head push rod is fixedly connected to the female head valve core by interference riveting, and the top of the female head push rod is provided with a convex hemispherical surface matching the concave hemispherical surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has a simple structure, few parts, low cost, light weight, easy maintenance, high cost performance, quick operation, and can realize quick connection and disconnection of pipelines without other auxiliary tools. The connection has good sealing performance, and the quick-insertion male head and the quick-insertion female head have self-sealing performance after disconnection. It is widely used and can be applied to different working media and working occasions such as gas and hydraulic oil. It has strong market competitiveness and broad market prospects.

[0014] 2. The present invention provides a locking mechanism on the quick-plug female connector, and the locking mechanism is provided with a female connector button. When connecting, it is only necessary to insert the quick-plug male connector into a specific position in the quick-plug female connector, and the locking mechanism can automatically lock the quick-plug male connector to achieve a sealed connection between the quick-plug male connector and the quick-plug female connector. When disconnecting, it is only necessary to press the female connector button to achieve the separation of the quick-plug male connector and the quick-plug female connector, and at the same time, the quick-plug male connector and the quick-plug female connector restore the self-sealing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the appearance diagram of the present invention; Figure 2 This is a cross-sectional view of a quick-connect male connector; Figure 3 This is a cross-sectional view of a quick-plug female connector; Figure 4 This is a cross-sectional view of the male connector body; Figure 5 This is a cross-sectional view of the male valve seat; Figure 6 This is a cross-sectional view of the male valve core; Figure 7 This is a cross-sectional view of the female head body; Figure 8 This is a cross-sectional view of the female button; Fig. 9 It is a cross-sectional view of the female valve seat and the female positioning ring; Fig.10 This is a cross-sectional view of the female valve core and the female push rod; Fig.11 It is a three-dimensional image of the female valve core; Fig.12 It is a cross-sectional view of the coupling state of the present invention; In the figure: 1-quick-insert male connector, 2-quick-insert female connector, 3-male connector body, 301-external thread end, 4-first sealing ring, 5-male body, 501-male body large end, 502-male body small end, 503-male body large cavity, 504-male body small cavity, 505-inner cone, 506-check ring, 507-first inclined surface, 6-male spring, 7-male valve seat, 701-valve seat cylinder, 702-valve seat block, 703-through hole, 704-valve seat block sealing ring groove, 8-second sealing ring, 9-male valve core, 901-conical body, 902-chamfer, 903-inner concave hemispherical surface, 904-retaining block, 90 5-notch, 10-female body, 1001-button mounting hole, 1002-button spring mounting hole, 1003-retaining ring, 11-female button, 1101-eccentric through hole, 1102-slot, 1103-bump, 1104-second inclined surface, 12-button spring, 13-female positioning ring, 1301-third inclined surface, 1302-stop, 14-third sealing ring, 15-female valve seat, 16-fourth sealing ring, 17-female valve core, 1701-positioning block, 1702-slider, 18-female push rod, 1801-convex hemispherical surface, 19-fifth sealing ring, 20-female spring, 21-female connector body. DETAILED DESCRIPTION

[0016] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] See also Figure 1-Figure 12 , an embodiment provided by the present invention: A quick release connector, comprising a quick-insert male connector 1 and a quick-insert female connector 2, wherein the quick-insert male connector 1 comprises a male connector body 3, a male main body 5 and a male valve seat 7, wherein the male connector body 3 is coaxially fixedly sealed with the male main body 5, the male main body 5 is provided with a male main body large end 501 and a male main body small end 502, the male valve seat 7 is located inside the male main body large end 501 and is elastically slidably connected with the male connector body 3 through a male spring 6, and the male valve seat 7 divides the inner cavity of the male main body 5 into a male main body large cavity 503 and a male main body small cavity 504 which are sealed to each other through a second sealing ring 8 under the action of the male spring 6, the male valve seat 7 is coaxially fixedly connected with a male valve core 9, the quick-insert female connector 2 comprises a female main body 10, a female valve core 17 and a female connector body 21, one end of the female main body 10 is provided with a locking mechanism, and the other end It is coaxially fixedly connected with the female connector body 21, a female spring 20 is arranged in the female connector body 21, a female positioning ring 13 and a female valve seat 15 are fixedly arranged in the middle of the female main body 10, and the female valve core 17 is elastically slidingly sealed and connected with the female valve seat 15 under the action of the female spring 20, and a female push rod 18 is fixedly arranged at one end of the female valve core 17. After the small end 502 of the male main body is inserted into the quick-insertion female connector 2, the locking mechanism can lock the axial position of the small end 502 of the male main body, and at the same time, the male valve core 9 presses against the female push rod 18 and then presses the male spring 6 and the female spring 20 against each other, and the male valve seat 7 moves axially toward the male connector body 3, and the large cavity 503 of the male main body is connected to the small cavity 504 of the male main body, and the female valve core 17 moves axially toward the female connector body 21, and the inner hole of the female valve seat 15 is connected to the inner cavity of the female connector body 21.

[0018] Among them, one end of the male connector body 3 is a hexagonal head and an internal threaded hole is opened on the end face. The setting of the hexagonal head is convenient for wrench operation to tighten or loosen the male connector body 3. The internal threaded hole is used to connect other pipes. The other end is provided with an external threaded end 301. A first sealing ring 4 is provided at the root of the external threaded end 301. The external threaded end 301 is threadedly connected to the large end 501 of the male main body and is sealed with the male main body 5 through the first sealing ring 4.

[0019] The male valve seat 7 includes a valve seat cylinder 701 and a valve seat block 702, the valve seat cylinder 701 and the valve seat block 702 are coaxially fixedly connected, a spring seat hole (not marked with a serial number in the attached drawings) is provided on the end surface of the external thread end 301, one end of the male spring 6 is located in the spring seat hole, and the other end is located in the valve seat cylinder 701, the valve seat cylinder 701 is sleeved in the spring seat hole, and a through hole 703 is provided on the valve seat cylinder 701 for connecting the inner cavity of the male joint body 3 with the large cavity 5 of the male main body 03. A valve seat block sealing ring groove 704 is provided on the outer end surface of the valve seat block 702. The second sealing ring 8 is installed in the valve seat block sealing ring groove 704. The inner cavity of the male head body 5 includes a male head body large cavity 503 and a male head body small cavity 504. The male head body large cavity 503 and the male head body small cavity 504 are transitionally connected by an inner conical surface 505. The second sealing ring 8 presses against the inner conical surface 505 under the action of the male head spring 6, so as to seal the male head body large cavity 503 and the male head body small cavity 504.

[0020] Among them, a cone 901 is fixedly provided at one end of the male valve core 9, and the cone inclination of the cone 901 is the same as the inclination of the inner cone 505. A chamfer 902 is provided on the bottom surface of the cone 901. After the male valve core 9 is threadedly fixedly connected to the male valve seat 7, the chamfer 902 cooperates with the valve seat block sealing ring groove 704 to form a semi-enclosed space of the second sealing ring 8 to prevent the second sealing ring 8 from falling off. An inner concave hemispherical surface 903 is provided on the end surface of the other end of the male valve core 9. A retaining block 904 is coaxially fixedly provided near the inner concave hemispherical surface 903 of the male valve core 9. The outer diameter of the retaining block 904 matches the aperture of the male main body small cavity 504, and is used to support the end of the male valve core 9 to ensure that the male valve core 9 is coaxial with the male main body small cavity 504. A number of notches 905 are evenly distributed on the retaining block 904 so that the working medium can flow in the male main body small cavity 504.

[0021] The locking mechanism includes a female button 11 and a button spring 12. The female button 11 is provided with an eccentric through hole 1101, so that after the female button 11 is installed in the female body 10, the small end 502 of the male body can enter the eccentric through hole 1101. A card slot 1102 is provided at one end of the eccentric through hole 1101. The card slot 1102 is coaxial with the eccentric through hole 1101. The other end of the eccentric through hole 1101 is eccentrically milled into an arc so that a convex block 1103 is formed at the connection between the eccentric through hole 1101 and the card slot 1102. The female body 10 is provided with a button mounting hole 101 at one end. 01, the button mounting hole 1001 is perpendicular to the axis of the female main body 10 and does not pass through the female main body 10, a button spring mounting hole 1002 is opened at the bottom of the button mounting hole 1001, the button spring 12 is placed in the button spring mounting hole 1002, the female button 11 is located in the button mounting hole 1001, one end of the female positioning ring 13 extends into the slot 1102 to limit the female button 11 from moving toward the open end of the button mounting hole 1001, and a check ring 506 is arranged on the small end 502 of the male main body, and the width of the check ring 506 is smaller than the width of the slot 1102.

[0022] Among them, the check ring 506 is provided with a first bevel 507 intersecting with the small end 502 of the male body, and the first bevel 507 faces the end of the small end 502 of the male body. The protrusion 1103 is provided with a second bevel 1104 intersecting with the inner wall of the eccentric through hole 1101, and the second bevel 1104 faces away from the slot 1102. The female positioning ring 13 is provided with a third bevel 1301, and the third bevel 1301 faces the female button 11. The first bevel 507, the second bevel 1104, and the third bevel 1301 have the same inclination. The functions of the first bevel 507, the second bevel 1104, and the third bevel 1301 are to enable the check ring 506 to smoothly enter the slot 1102 and leave a little buffer distance.

[0023] Among them, a retaining ring 1003 is arranged in the middle part of the female head body 10, and a stopper 1302 is arranged at one end of the female head positioning ring 13. The female head positioning ring 13 is matched and extends into the retaining ring 1003 and the stopper 1302 is flush with the side of the retaining ring 1003. The female head valve seat 15 is flush with the female head positioning ring 13. The female head connector body 21 is threadedly connected to the female head body 10 and the end face is tightly pressed against the female head valve seat 15, so that the female head positioning ring 13 and the female head valve seat 15 are fixed in the middle part of the female head body 10. The inner ring of the female head valve seat 15 is installed with a third sealing ring 14 for sliding sealing with the small end 502 of the male head body. The outer ring of the female head valve seat 15 is installed with a fourth sealing ring 16 for sealing with the female head connector body 21.

[0024] Among them, the female valve core 17 is a cone valve, and the female valve core 17 is circumferentially evenly distributed with three positioning blocks 1701 near the cone head. The outer diameter of the positioning block 1701 matches the inner cavity aperture of the female connector body 21. One end of the positioning block 1701 is flush with the end face of the female valve seat 15. The female spring 20 is located in the inner cavity of the female connector body 21 and one end is flush with the bottom of the inner cavity of the female connector body 21, and the other end presses the positioning block 1701. The tail of the female valve core 17 is evenly distributed with three sliders 1702. The sliders 1702 are matched and extend into the inner hole of the female valve seat 15. The female valve core 17 is provided with a fifth sealing ring 19 for sealing with the female valve seat 15.

[0025] Among them, the female head push rod 18 and the female head valve core 17 are fixedly connected by interference riveting. The top of the female head push rod 18 is provided with a convex hemispherical surface 1801 matching the concave hemispherical surface 903, so that when the male head valve core 9 pushes the female head push rod 18, the concave hemispherical surface 903 positions the convex hemispherical surface 1801, ensuring that the male head valve core 9 and the female head push rod 18 are coaxial, which is conducive to maintaining the thrust level and preventing the male head valve seat 7 and the female head valve core 17 from getting stuck.

[0026] Working principle of the present invention: Insert the quick-connect male connector 1 into the quick-connect female connector 2 by hand. Fig.12As shown, the male body small end 502 enters the eccentric through hole 1101, the male valve core 9 bears against the female head push rod 18, the quick-insertion male connector 1 continues to be inserted, the male valve seat 7 and the female valve core 17 compress the male spring 6 and the female spring 20 respectively, so that the male valve seat 7 moves axially toward the male connector body 3, and the female valve core 17 moves axially toward the female connector body 21. During the insertion of the quick-insertion male connector 1, the first inclined surface 507 presses the second inclined surface 1104 to move the female button 11 downward, so that the male body small end 502 continues to move forward. When the check ring 506 passes over the protrusion 1103 and enters the slot 1102, the female button 11 moves upward under the action of the button spring 12. When the female button 11 moves upward under the action of the button spring 12 and contacts with the small end 502 of the male body, a clicking sound is emitted. Upon hearing this, the staff knows that the quick-insertion male connector 1 is in place, and the connection between the quick-insertion male connector 1 and the quick-insertion female connector 2 is completed by releasing the hand. At this time, the second sealing ring 8 has left the inner conical surface 505, and the fifth sealing ring 19 has left the inner hole of the female valve seat 15, forming the inner cavity of the male connector body 3, the large cavity 503 of the male body, the small cavity 504 of the male body, the inner hole of the female valve seat 15, and the inner cavity of the female connector body 21. Working medium channels.

[0027] When the quick-connect male connector 1 and the quick-connect female connector 2 need to be disassembled, it is only necessary to press the female connector button 11 to move the protrusion 1103 downward, and the check ring 506 loses the obstruction of the protrusion 1103. The female connector push rod 18, under the action of the female connector spring 20, pushes open the male connector valve core 9 together with the quick-connect male connector 1. At the same time, the male connector valve seat 7, under the action of the male connector spring 6, drives the second sealing ring 8 to press against the inner conical surface 505, seals the male connector main body large cavity 503, and restores the self-sealing of the quick-connect male connector 1. The female connector valve core 17, under the action of the female connector spring 20, drives the fifth sealing ring 19 to enter and seal the inner hole of the female connector valve seat 15, and restores the self-sealing of the quick-connect female connector 2.

[0028] 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 release connector, comprising a quick-release male connector (1) and a quick-release female connector (2), characterized in that: The quick-insert male connector (1) comprises a male connector body (3), a male body (5) and a male valve seat (7); the male connector body (3) is coaxially fixedly sealedly connected to the male body (5); the male body (5) is provided with a male body large end (501) and a male body small end (502); the male valve seat (7) is located inside the male body large end (501) and is elastically slidably connected to the male connector body (3) via a male spring (6); the male valve seat (7) Under the action of the male spring (6), the inner cavity of the male body (5) is divided into a male body large cavity (503) and a male body small cavity (504) which are sealed from each other by a second sealing ring (8); the male valve seat (7) is coaxially fixedly connected with a male valve core (9); the quick-insertion female head (2) comprises a female body (10), a female valve core (17), and a female connector body (21); one end of the female body (10) is provided with a locking mechanism, and the other end is connected to the female connector body (21) ) are coaxially fixedly connected, a female spring (20) is arranged in the female connector body (21), a female positioning ring (13) and a female valve seat (15) are fixedly arranged in the middle of the female main body (10), the female valve core (17) is elastically slidably sealedly connected to the female valve seat (15) under the action of the female spring (20), a female push rod (18) is fixedly arranged at one end of the female valve core (17), and the small end (502) of the male main body is inserted into the quick-insertion female connector (2). After that, the locking mechanism can lock the axial position of the small end (502) of the male body, and at the same time, the male valve core (9) presses against the female push rod (18) and then presses the male spring (6) and the female spring (20) against each other, the male valve seat (7) moves axially toward the male connector body (3), the male body large cavity (503) is connected to the male body small cavity (504), the female valve core (17) moves axially toward the female connector body (21), and the inner hole of the female valve seat (15) is connected to the inner cavity of the female connector body (21).

2. A quick release connector according to claim 1, characterized in that: One end of the male connector body (3) is a hexagonal head with an internal threaded hole formed on the end surface, and the other end is provided with an external threaded end (301). A first sealing ring (4) is provided at the root of the external threaded end (301). The external threaded end (301) is threadedly connected to the large end (501) of the male connector body and is sealedly connected to the male connector body (5) via the first sealing ring (4).

3. A quick release connector according to claim 2, characterized in that: The male valve seat (7) comprises a valve seat cylinder (701) and a valve seat block (702). The valve seat cylinder (701) and the valve seat block (702) are coaxially fixedly connected. The end surface of the external threaded end (301) is provided with a spring seat hole. One end of the male spring (6) is located in the spring seat hole, and the other end is located in the valve seat cylinder (701). The valve seat cylinder (701) is sleeved in the spring seat hole. A through hole (703) is provided on the valve seat cylinder (701). The valve seat block The outer end surface of (702) is provided with a valve seat block sealing ring groove (704), and the second sealing ring (8) is installed in the valve seat block sealing ring groove (704). The inner cavity of the male head body (5) includes a male head body large cavity (503) and a male head body small cavity (504). The male head body large cavity (503) and the male head body small cavity (504) are transitionally connected through an inner conical surface (505), and the second sealing ring (8) is pressed against the inner conical surface (505) under the action of the male head spring (6).

4. A quick release connector according to claim 3, characterized in that: A conical body (901) is fixedly provided at one end of the male valve core (9), the inclination of the conical body (901) is the same as the inclination of the inner conical surface (505), and a chamfer (902) is provided on the bottom surface of the conical body (901). After the male valve core (9) is threadedly fixedly connected to the male valve seat (7), the chamfer (902) cooperates with the sealing ring groove (704) of the valve seat block to form a semi-enclosed space of the second sealing ring (8), and an inner concave hemispherical surface (903) is provided on the end surface of the other end of the male valve core (9). A retaining block (904) is coaxially fixedly provided on the male valve core (9) near the inner concave hemispherical surface (903), and the outer diameter of the retaining block (904) matches the aperture of the male main body small cavity (504), and the retaining block (904) is evenly distributed with a plurality of notches (905).

5. A quick release connector according to claim 1, characterized in that: The locking mechanism comprises a female button (11) and a button spring (12); the female button (11) is provided with an eccentric through hole (1101); a slot (1102) is provided at one end of the eccentric through hole (1101); the slot (1102) is coaxial with the eccentric through hole (1101); an arc is eccentrically milled at the other end of the eccentric through hole (1101) so that a convex block (1103) is formed at the connection between the eccentric through hole (1101) and the slot (1102); a button mounting hole (1001) is provided at one end of the female body (10); the button mounting hole (1001) is perpendicular to the female body (10 ) axis and does not pass through the female head body (10), a button spring mounting hole (1002) is provided at the bottom of the button mounting hole (1001), the button spring (12) is placed in the button spring mounting hole (1002), the female head button (11) is located in the button mounting hole (1001), one end of the female head positioning ring (13) extends into the card slot (1102) to limit the female head button (11) from moving toward the open end of the button mounting hole (1001), and a check ring (506) is provided on the small end (502) of the male head body, and the width of the check ring (506) is smaller than the width of the card slot (1102).

6. A quick release connector according to claim 5, characterized in that: The check ring (506) is provided with a first inclined surface (507) intersecting with the small end (502) of the male main body, and the first inclined surface (507) faces the end of the small end (502) of the male main body; the protrusion (1103) is provided with a second inclined surface (1104) intersecting with the inner wall of the eccentric through hole (1101), and the second inclined surface (1104) faces away from the slot (1102); the female positioning ring (13) is provided with a third inclined surface (1301), and the third inclined surface (1301) faces the female button (11); and the first inclined surface (507), the second inclined surface (1104), and the third inclined surface (1301) have the same inclination.

7. A quick release connector according to claim 1, characterized in that: A retaining ring (1003) is arranged in the middle of the female main body (10), and a stopper (1302) is arranged at one end of the female positioning ring (13). The female positioning ring (13) matches and extends into the retaining ring (1003) and the stopper (1302) is flush with the side of the retaining ring (1003). The female valve seat (15) is flush with the female positioning ring (13). The female connector body (21) is threadedly connected to the female main body (10) and the end face is tightly pressed against the female valve seat (15). The inner ring of the female valve seat (15) is installed with a third sealing ring (14), and the outer ring of the female valve seat (15) is installed with a fourth sealing ring (16).

8. A quick release connector according to claim 1, characterized in that: The female valve core (17) is a cone valve. A plurality of positioning blocks (1701) are evenly distributed around the female valve core (17) near the cone head. The outer diameter of the positioning block (1701) matches the inner diameter of the female connector body (21). One end of the positioning block (1701) is flush with the end surface of the female valve seat (15). The female spring (20) is located in the inner cavity of the female connector body (21) with one end flush with the bottom of the inner cavity of the female connector body (21) and the other end presses the positioning block (1701). A plurality of sliders (1702) are evenly distributed around the rear of the female valve core (17). The sliders (1702) extend into the inner hole of the female valve seat (15) in a matching manner. A fifth sealing ring (19) is provided on the female valve core (17) for sealing with the female valve seat (15).

9. A quick release connector according to claim 4, characterized in that: The female head push rod (18) is fixedly connected to the female head valve core (17) by interference riveting, and the top of the female head push rod (18) is provided with an outer convex hemispherical surface (1801) matching the inner concave hemispherical surface (903).

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