Modular valve hydraulic quick coupling

Abstract

This invention relates to a quick-connect and disconnection device, particularly a hydraulic quick-connect coupling for modular valves. The hydraulic quick-connect coupling for modular valves includes a modular valve body. The modular valve body has vertically oriented female socket pipes, male socket pipe a, and male socket pipe b. A modular valve female socket is fitted onto the female socket pipe, a modular valve male plug a is fitted onto male socket pipe a, and a modular valve male plug b is fitted onto male socket pipe b. A channel a is provided between the female socket pipe and male socket pipe a, and a channel b is provided between male socket pipe a and male socket pipe b. A modular valve connector body a is located on the lower inner wall of the female socket pipe, and a modular valve connector body spring a is located between the modular valve female socket and the modular valve connector body a. The advantages of this invention are: it enables the linkage between channels a and b; the oil return groove a of the modular valve connector body a and the oil return groove b of the modular valve connector body b are switched through up-and-down movement, thus meeting various needs in different scenarios.

Description

Technical Field

[0001] This invention relates to a quick-connection device, particularly a hydraulic quick-connect coupling for modular valves. Background Technology

[0002] Quick couplings, including hydraulic quick couplings and various fluid quick couplings, are connection devices that quickly connect or disconnect pipelines, enabling rapid assembly and disassembly. Because quick couplings have a bidirectional backflow prevention function, preventing leaks when disconnecting pipelines, they are widely used in petroleum, metallurgy, hydropower, engineering machinery, shipbuilding, and electromechanical equipment industries. The connection structure of a quick coupling is its most important part; its connection method and structure directly determine the ease of use, reliability, and product quality. Quick couplings consist of two parts: a female connector and a male connector. A single quick coupling only enables the connection or disconnection of a single pipeline, which cannot accommodate pipeline switching in multiple situations, limiting its use in some equipment. Summary of the Invention

[0003] To solve the aforementioned technical problems in pipeline switching, this invention provides a modular valve hydraulic quick connector.

[0004] The technical solution of the present invention is as follows: A modular valve hydraulic quick connector includes a modular valve body. The modular valve body has a vertically oriented female socket pipe, a male socket pipe a, and a male socket pipe b. The female socket pipe is fitted with a modular valve female socket. The male socket pipe a is fitted with a modular valve male plug a, and the male socket pipe b is fitted with a modular valve male plug b. A channel a is provided between the female socket pipe and the male socket pipe a, and a channel b is provided between the male socket pipe a and the male socket pipe b. A modular valve connector body a is located on the lower inner wall of the female socket pipe. A modular valve connector body spring a is located between the modular valve female socket and the modular valve connector body a. The lower part of the male socket pipe b... The inner wall is provided with a modular valve connector body b. A modular valve connector body spring b is provided between the modular valve male plug b and the modular valve connector body b. The connector body a at the lower part of the modular valve female socket is inserted into the modular valve connector body a. A connector body sealing ring a is sleeved on the lower part of the connector body a. A return oil groove a is provided on the upper inner wall of the modular valve connector body a. The connector body sealing ring a enters the return oil groove a to realize pipeline switching. The connector body b at the lower part of the modular valve male plug b is inserted into the modular valve connector body b. A connector body sealing ring b is sleeved on the lower part of the connector body b. A return oil groove b is provided on the upper inner wall of the modular valve connector body b. The connector body sealing ring b enters the return oil groove b to realize pipeline switching.

[0005] The modular valve body has installation ports on both the front and rear sides. The upper inner wall of the female socket pipe and the sliding sleeve a are connected by threads. The upper inner wall of the female socket pipe is provided with a limiting step a. The upper inner wall of the male socket pipe a is connected to the male plug a of the modular valve by threads. The upper inner wall of the male socket pipe a is provided with a limiting step b. The upper inner wall of the male socket pipe b is connected to the male plug b of the modular valve by threads. The upper inner wall of the male socket pipe b is provided with a limiting step c.

[0006] A module valve connector O-ring b is provided between the limiting step b and the module valve male plug a. A module valve connector O-ring a is provided between the module valve body and the module valve connector a. A module valve connector O-ring c is provided between the module valve body and the module valve connector b. The channel a is arranged in a straight line laterally. The channel b is arc-shaped with the lower part at the bottom. The height of the channel a is higher than that of the channel b. The lower wall of the channel a outlet is surrounded by a sloping wall a. The lower wall of the channel b outlet is surrounded by a sloping wall b. The outer wall of the middle part of the connector a is a sloping wall c, which is located above the sloping wall a. The outer wall of the middle part of the connector b is a sloping wall d, which is located above the sloping wall c.

[0007] The modular valve socket includes a housing, a housing connector fitted on the inner front wall of the housing, a connector body a fitted on the outer front wall of the housing connector, a sliding sleeve a fitted between the housing and connector body a, the sliding sleeve a fitted on the outer wall of the housing connector, an outer sleeve fitted on the outer rear wall of the housing, the outer sleeve connected to a steel ball, the steel ball being engaged in a steel ball groove, an outer sleeve spring between the outer sleeve and the housing, a housing valve seat fitted on the inner rear wall of the housing connector, a housing valve sleeve seat engaged on the rear side of the housing valve seat, a housing valve core fitted in the middle of the housing valve seat, a bushing between the rear part of the housing valve core and the rear of the housing, a bushing spring between the bushing and the housing valve sleeve seat, a housing valve sleeve between the housing valve sleeve seat and the housing valve core, the front part of the housing valve sleeve contacting the inner wall of the housing valve sleeve seat, the rear part of the housing valve sleeve contacting the housing valve core, a housing valve sleeve spring between the housing valve sleeve and the housing valve sleeve seat, a connector body collar a fitted on the outer front wall of connector body a, a connector body sealing ring a engaged on connector body collar a, and a threaded outer wall of sliding sleeve a.

[0008] The outer wall of the rear end of the housing is provided with an outer retaining ring, the inner wall of the middle part of the sliding sleeve a is provided with a convex ring a, the convex ring a has a movable position, the movable position is provided with an exhaust hole a, the exhaust hole a is provided on the housing connector, the convex ring a is provided with a sliding sleeve plastic ring a and a sliding sleeve O-ring b, the convex ring a is locked between the housing and the connector body a, the outer wall of the sliding sleeve a is provided with a sliding sleeve O-ring a, the inner wall of the rear part of the sliding sleeve a is provided with a sliding sleeve sealing gasket a, the outer wall of the housing valve seat is provided with a housing valve seat O-ring a, the inner wall of the housing valve seat is provided with a housing valve seat plastic ring and a housing valve seat O-ring b, and the outer wall of the rear part of the connector body a is provided with a connector body O-ring a and a connector body plastic ring a.

[0009] The front outer wall of the connector body a is recessed with a groove a, in which a connector body sealing ring a and a connector body collar a are fitted. The connector body collar a is fixed with an interference fit. The outer wall of the connector body sealing ring a has an exposed arc-shaped protrusion. The connector body sealing ring a is located in the protrusion a. The top of the connector body a is flush with the inner side of the top of the connector body collar a. A retaining ring a is provided on the outer side of the top of the connector body collar a. The housing valve seat includes an inverted frustum, a straight rod, and a fixed rod. The housing valve seat is fixedly provided with the fixed rod. The outer wall of the inverted frustum is provided with a housing valve core O-ring. The inner wall of the rear end of the housing valve sleeve is provided with an inclined wall a, which contacts the housing valve core O-ring. The outer wall of the middle part of the housing valve sleeve is provided with a convex ring b. A housing valve sleeve spring is provided between the convex ring b and the housing valve sleeve seat. There is a distance between the straight rod and the housing valve sleeve.

[0010] The modular valve male plug b includes a plug, a plug connector body fitted on the front outer wall of the plug, a connector body b fitted on the front outer wall of the plug connector body, a sliding sleeve b between the plug and the connector body b, a plug valve seat on the middle inner wall of the plug connector body, a plug valve core on the rear inner wall of the plug, a plug valve core rod on the inner side of the plug valve core, a plug valve core spring between the plug valve core rod and the plug valve seat, the plug valve core spring being fitted in the plug valve seat, a thread on the outer wall of the sliding sleeve b, a plug body collar b fitted on the front outer wall of the connector body b, and a connector body sealing ring b between the connector body b and the plug body collar b.

[0011] The inner wall of the rear part of the plug is provided with a plug plastic ring and a plug O-ring. Between the plug and the plug connector body, there is a plug connector O-ring and a plug connector plastic ring. The inner wall of the middle part of the sliding sleeve b is provided with a convex ring b. The convex ring b has a movable position and a vent hole b. The vent hole b is located on the plug connector body. The convex ring b is provided with a sliding sleeve plastic ring b and a sliding sleeve O-ring d. The convex ring b is locked between the plug and the connector body b. The outer wall of the sliding sleeve b is provided with a sliding sleeve O-ring c. The inner wall of the rear part of the sliding sleeve b is provided with a sliding sleeve sealing gasket b. The outer wall of the rear part of the connector body b is provided with a connector body O-ring b and a plug body plastic ring b.

[0012] The outer wall of the front part of the connector body b is recessed with a groove b. The connector body sealing ring b48 and the plug body collar b are fitted in the groove b. The plug body collar b is fixed by interference fit. The outer wall of the connector body sealing ring b has an arc-shaped protrusion exposed. The connector body sealing ring b is located in the protrusion b. The top of the connector body b and the inner side of the top of the plug body collar b are flush. A retaining ring b is provided on the outer side of the top of the plug body collar b.

[0013] Using the technical solution of this invention, the structure is novel, and the design is ingenious and simple. When the female socket is inserted into the top-moving plug valve core, it moves inward to open the flow channel. When the single flow channel is working, the sealing ring b of the connector body is located above the return oil groove b, sealing the gap. When switching is required, it moves up and down in the sliding sleeve b by pushing. When the sealing ring b of the connector body enters the return oil groove b, it realizes the return flow. The female socket is inserted into the top-moving plug valve core, it moves inward to open the flow channel. When the single flow channel is working, the sealing ring b of the connector body is located above the return oil groove b, sealing the gap. When switching is required, it moves up and down in the sliding sleeve b by pushing. When the sealing ring b of the connector body enters the return oil groove b, it realizes the return flow, realizing the linkage between channel a and channel b. The return oil groove a of the modular valve connector body a and the return oil groove b of the modular valve connector body b achieve the switching of the oil circuit through up and down movement, which can meet various needs in different scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of connector body b of the present invention; Figure 3 yes Figure 7 Schematic diagram of the structure in section AA; Figure 4 This is a schematic diagram of the structure of the plug body collar b of the present invention; Figure 5 This is a schematic diagram of the structure of the sealing ring b of the connector body of the present invention.

[0015] Figure 6 This is a schematic diagram of the structure of an embodiment of the present invention.

[0016] Figure 7 , 8 9 is a schematic diagram of the modular valve of the present invention; Figure 10 This is a schematic diagram of the modular valve socket of the present invention. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0018] like Figure 1 , 2The modular valve hydraulic quick connectors shown in figures 3, 4, 5, 6, 7, 8, 9, and 10 include a modular valve 51. The modular valve 51 has a vertically oriented female socket pipe, a male socket pipe a, and a male socket pipe b. A modular valve female socket 56 is fitted onto the female socket pipe, a modular valve male plug a58 is fitted onto male socket pipe a, and a modular valve male plug b57 is fitted onto male socket pipe b. A channel a is provided between the female socket pipe and male socket pipe a, and a channel b is provided between male socket pipe a and male socket pipe b. A modular valve connector body a59 is located on the lower inner wall of the female socket pipe. A modular valve connector body spring a60 is located between the modular valve female socket 56 and the modular valve connector body a59. A module valve connector body spring a60 is located on the lower inner wall of the male socket pipe b. A module valve connector body spring b61 is provided between the module valve connector body b52, the module valve male plug b57, and the module valve connector body b52. The connector body a15 at the bottom of the module valve female socket 56 is inserted into the module valve connector body a59. A connector body sealing ring a18 is fitted on the lower part of the connector body a15. The upper inner wall of the module valve connector body a59 is provided with an oil return groove a62. The connector body sealing ring a18 enters the oil return groove a62 to achieve pipeline switching. The connector body b45 at the bottom of the module valve male plug b57 is inserted into the module valve connector body b52. A connector body sealing ring b48 is fitted on the lower part of the connector body b45. The upper inner wall of the module valve connector body b52 is provided with an oil return groove b63. ​​The connector body sealing ring b48 enters the oil return groove b63 to achieve pipeline switching.

[0019] The module valve 51 has installation ports 65 on both the front and rear sides. The upper inner wall of the female socket pipe and the sliding sleeve a3 are connected by threads. The upper inner wall of the female socket pipe is provided with a limiting step a. The upper inner wall of the male socket pipe a is connected to the male plug a58 of the module valve by threads. The upper inner wall of the male socket pipe a is provided with a limiting step b. The upper inner wall of the male socket pipe b is connected to the male plug b57 of the module valve by threads. The upper inner wall of the male socket pipe b is provided with a limiting step c.

[0020] A module valve connector O-ring b55 is provided between the limiting step b and the module valve male plug a58; a module valve connector O-ring a54 is provided between the module valve 51 and the module valve connector a59; and a module valve connector O-ring c is provided between the module valve 51 and the module valve connector b52. Channel a is arranged in a horizontal straight line, and channel b is arc-shaped with the lower position at the bottom. The height of channel a is higher than that of channel b. The lower wall of the outlet of channel a is surrounded by a sloping wall a, and the lower wall of the outlet of channel b is surrounded by a sloping wall b. The outer wall of the middle part of connector a15 is a sloping wall c, which is located above sloping wall a. The outer wall of the middle part of connector b45 is a sloping wall d, which is located above sloping wall c.

[0021] The modular valve socket 56 includes a housing 1, a housing connector 2 fitted onto the inner front wall of the housing 1, a connector a15 fitted onto the outer front wall of the housing connector 2, a sliding sleeve a3 fitted between the housing 1 and the connector a15, the sliding sleeve a3 fitting onto the outer wall of the housing connector 2, an outer sleeve 5 fitted onto the outer rear wall of the housing 1, the outer sleeve 5 connecting to a steel ball 8, the steel ball 8 being engaged in a steel ball groove, an outer sleeve spring 9 between the outer sleeve 5 and the housing 1, a housing valve seat 17 provided on the inner rear wall of the housing connector 2, a housing valve sleeve seat 12 engaged on the rear side of the housing valve seat 17, and a housing valve core 1 provided in the middle of the housing valve seat 17. 1. A bushing 27 is provided between the rear part of the valve core 11 and the rear part of the housing 1. A bushing spring 22 is provided between the bushing 27 and the valve seat 12. A housing valve sleeve 24 is provided between the valve seat 12 and the valve core 11. The front part of the housing valve sleeve 24 contacts the inner wall of the valve seat 12, and the rear part of the housing valve sleeve 24 contacts the valve core 11. A housing valve sleeve spring 21 is provided between the housing valve sleeve 24 and the valve seat 12. A connector collar a20 is fitted on the outer wall of the front part of the connector body a15. The connector collar a20 is fitted with a connector sealing ring a18. The outer wall of the sliding sleeve a3 is threaded.

[0022] The outer wall of the rear end of the housing 1 is provided with an outer retaining ring 6. The inner wall of the middle part of the sliding sleeve a3 is provided with a convex ring a. The convex ring a has a movable position and an exhaust hole a. The exhaust hole a is provided on the housing connector 2. The convex ring a is provided with a sliding sleeve plastic ring a10 and a sliding sleeve O-ring b13. The convex ring a is locked between the housing 1 and the connector body a15. The outer wall of the sliding sleeve a3 is provided with a sliding sleeve O-ring a7. The inner wall of the rear part of the sliding sleeve a3 is provided with a sliding sleeve sealing gasket a4. The outer wall of the housing valve seat 12 is provided with a housing valve seat O-ring a26. The inner wall of the housing valve seat 12 is provided with a housing valve seat plastic ring 23 and a housing valve seat O-ring b25. The outer wall of the rear part of the connector body a15 is provided with a connector body O-ring a14 and a connector body plastic ring a16.

[0023] The front outer wall of the connector body a15 is recessed with a groove a, in which a connector body sealing ring a18 and a connector body collar a20 are fitted. The connector body collar a20 is fixed with an interference fit. The outer wall of the connector body sealing ring a18 has an exposed arc-shaped protrusion. The connector body sealing ring a18 is located in the protrusion a64. The top of the connector body a15 is flush with the inner side of the top of the connector body collar a20. A retaining ring a is provided on the outer side of the top of the connector body collar a20. The housing valve seat 17 includes an inverted frustum, a straight rod, and a fixed rod. The housing valve seat 17 is fixedly provided with the fixed rod. The outer wall of the inverted frustum is provided with a housing valve core O-ring 19. The inner wall of the rear end of the housing valve sleeve 24 is provided with an inclined wall a, which contacts the housing valve core O-ring 19. The outer wall of the middle part of the housing valve sleeve 24 is provided with a convex ring b. A housing valve sleeve spring 21 is provided between the convex ring b and the housing valve sleeve seat 12. There is a distance between the straight rod and the housing valve sleeve 24.

[0024] The modular valve male plug b57 includes a plug 31, a plug connector 32 sleeved on the front outer wall of the plug 31, a connector body b45 sleeved on the front outer wall of the plug connector 32, a sliding sleeve b33 between the plug 31 and the connector body b45, a plug valve seat 35 on the middle inner wall of the plug connector 32, a plug valve core 36 on the rear inner wall of the plug 31, a plug valve core rod 47 on the inner side of the plug valve core 36, a plug valve core spring 41 between the plug valve core rod 47 and the plug valve seat 35, the plug valve core spring 41 being sleeved in the plug valve seat 35, the outer wall of the sliding sleeve b33 being threaded, a plug body collar b50 sleeved on the front outer wall of the connector body b45, and a connector body sealing ring b48 between the connector body b45 and the plug body collar b50.

[0025] The inner rear wall of the plug 31 is provided with a plug plastic ring 39 and a plug O-ring 49. A plug connector O-ring 38 and a plug connector plastic ring 42 are provided between the plug 31 and the plug connector 32. The inner middle wall of the sliding sleeve b33 is provided with a convex ring b. The convex ring b has a movable position and a vent hole b. The vent hole b is located on the plug connector 32. The convex ring b is provided with a sliding sleeve plastic ring b40 and a sliding sleeve O-ring d43. The convex ring b is engaged between the plug 31 and the connector body b45. The outer wall of the sliding sleeve b33 is provided with a sliding sleeve O-ring c37. The inner rear wall of the sliding sleeve b33 is provided with a sliding sleeve sealing gasket b34. The outer rear wall of the connector body b45 is provided with a connector O-ring b44 and a plug plastic ring b46.

[0026] The front outer wall of the connector body b45 is recessed with a groove b, in which a connector body sealing ring b48 and a plug body collar b50 are fitted. The plug body collar b50 is fixed with an interference fit. The outer wall of the connector body sealing ring b48 has an exposed arc-shaped protrusion. The connector body sealing ring b48 is located in the protrusion b. The top of the connector body b45 is flush with the inner side of the top of the plug body collar b50. A retaining ring b is provided on the outer side of the top of the plug body collar b50.

[0027] The inner wall of the rear part of the male plug a58 of the module valve is provided with a male plug valve core, and a male plug valve core spring is provided between the male plug valve core and the limiting step b.

[0028] In use, most connectors cannot move after being connected. This structure, through sliding sleeves a3 and b, provides a reserved movable position and has vent holes a and b to ensure venting under various sealing conditions. Combined with the internal pipe connection of channels a and b of the modular valve, the modular valve female socket 56 can work independently, and the modular valve male plug b57 can also work independently. When switching working states, pushing causes the connector body sealing ring a to enter the return oil groove a62, and the connector body sealing ring b to enter the return oil groove b. The arc-shaped protrusion provides a seal, leaving a gap in the return oil groove a62 and the return oil groove b to achieve backflow. Both can be operated independently. The number of installation ports 65 There are two valves installed on the equipment. Inclined walls a and b are set in parallel. The flow rate is large. One of the modular valves serves a fixing function. It is fixed with threads and has limit steps a, b, and c to limit its position. Internally, it is linked by a vertical channel in the middle and horizontal channels a and b on both sides. The lower part has modular valve connector body a59 and module valve connector body b52. Modular valve connector body springs a60 and b61 are set to facilitate reset. It can be connected to the corresponding male plug and female socket. It can be disconnected by pulling and the pipeline can be switched. Finally, it forms a pipeline structure with switchable multi-state pipeline.

Claims

1. A modular valve hydraulic quick connector, comprising a modular valve body (51), characterized in that: The modular valve body (51) is provided with a vertical female socket pipe, a male socket pipe a, and a male socket pipe b. The female socket pipe is fitted with a modular valve female socket (56), the male socket pipe a is fitted with a modular valve male plug a (58), and the male socket pipe b is fitted with a modular valve male plug b (57). A channel a is provided between the female socket pipe and the male socket pipe a, and a channel b is provided between the male socket pipe a and the male socket pipe b. A modular valve connector body a (59) is provided on the lower inner wall of the female socket pipe. A modular valve connector body spring a (60) is provided between the modular valve female socket (56) and the modular valve connector body a (59). A modular valve connector is provided on the lower inner wall of the male socket pipe b. A module valve connector spring b (61) is provided between the module valve male plug b (57) and the module valve connector body b (52). The connector body a (15) at the bottom of the module valve female socket (56) is inserted into the module valve connector body a (59). A connector body sealing ring a (18) is fitted on the bottom of the connector body a (15). An oil return groove a (62) is provided on the upper inner wall of the module valve connector body a (59). The connector body b (45) at the bottom of the module valve male plug b (57) is inserted into the module valve connector body b (52). A connector body sealing ring b (48) is fitted on the bottom of the connector body b (45). An oil return groove b (63) is provided on the upper inner wall of the module valve connector body b (52).

2. The modular valve hydraulic quick connector according to claim 1, characterized in that: The main body (51) of the module valve has installation ports (65) on both the front and rear sides. The upper inner wall of the female socket pipe and the sliding sleeve a (3) are connected by threads. The upper inner wall of the female socket pipe is provided with a limiting step a. The upper inner wall of the male socket pipe a and the module valve male plug a (58) are connected by threads. The upper inner wall of the male socket pipe a is provided with a limiting step b. The upper inner wall of the male socket pipe b and the module valve male plug b (57) are connected by threads. The upper inner wall of the male socket pipe b is provided with a limiting step c.

3. The modular valve hydraulic quick connector according to claim 1, characterized in that: A module valve connector O-ring b (55) is provided between the limiting step b and the module valve male plug a (58). A module valve connector O-ring a (54) is provided between the module valve body (51) and the module valve connector a (59). A module valve connector O-ring c is provided between the module valve body (51) and the module valve connector b (52). The channel a is set in a horizontal straight line. The channel b is arc-shaped with the lower position at the bottom. The position of the channel a is higher than that of the channel b. The lower wall of the outlet of the channel a is surrounded by a sloping wall a. The lower wall of the outlet of the channel b is surrounded by a sloping wall b. The outer wall of the middle part of the connector a (15) is a sloping wall c. The sloping wall c is located above the sloping wall a. The outer wall of the middle part of the connector b (45) is a sloping wall d. The sloping wall d is located above the sloping wall c.

4. The modular valve hydraulic quick connector according to claim 1, characterized in that: The modular valve socket (56) includes a housing (1), characterized in that: a housing connector (2) is fitted on the inner front wall of the housing (1), a connector a (15) is fitted on the outer front wall of the housing connector (2), a sliding sleeve a (3) is fitted between the housing (1) and the connector a (15), the sliding sleeve a (3) is fitted on the outer wall of the housing connector (2), an outer sleeve (5) is fitted on the outer rear wall of the housing (1), the outer sleeve (5) is connected to a steel ball (8), the steel ball (8) is locked in a steel ball groove, an outer sleeve spring (9) is provided between the outer sleeve (5) and the housing (1), a housing valve seat (17) is provided on the inner rear wall of the housing connector (2), a housing valve sleeve seat (12) is locked on the rear side of the housing valve seat (17), and a housing valve seat (17) is provided in the middle. A housing valve core (11) is provided with a bushing (27) between the rear part of the housing valve core (11) and the rear part of the housing (1). A bushing spring (22) is provided between the bushing (27) and the housing valve seat (12). A housing valve sleeve (24) is provided between the housing valve seat (12) and the housing valve core (11). The front part of the housing valve sleeve (24) contacts the inner wall of the housing valve seat (12), and the rear part of the housing valve sleeve (24) contacts the housing valve core (11). A housing valve sleeve spring (21) is provided between the housing valve sleeve (24) and the housing valve seat (12). A connector body collar a (20) is fitted on the outer wall of the front part of the connector body a (15). The connector body collar a (20) is fitted with a connector body sealing ring a (18). The outer wall of the sliding sleeve a (3) is provided with threads.

5. The modular valve hydraulic quick connector according to claim 1, characterized in that: The outer wall of the rear end of the housing (1) is provided with an outer retaining ring (6), the inner wall of the middle part of the sliding sleeve a (3) is provided with a convex ring a, the convex ring a has a movable position, the movable position is provided with an exhaust hole a, the exhaust hole a is provided on the housing connector (2), the convex ring a is provided with a sliding sleeve plastic ring a (10) and a sliding sleeve O-ring b (13), the convex ring a is locked between the housing (1) and the connector body a (15), the outer wall of the sliding sleeve a (3) is provided with a sliding sleeve O-ring a (7), the inner wall of the rear part of the sliding sleeve a (3) is provided with a sliding sleeve sealing gasket a (4), the outer wall of the housing valve seat (12) is provided with a housing valve seat O-ring a (26), the inner wall of the housing valve seat (12) is provided with a housing valve seat plastic ring (23) and a housing valve seat O-ring b (25), the outer wall of the rear part of the connector body a (15) is provided with a connector body O-ring a (14) and a connector body plastic ring a (16).

6. The modular valve hydraulic quick connector according to claim 1, characterized in that: The front outer wall of the connector body a (15) is recessed with a groove a, in which a connector body sealing ring a (18) and a connector body collar a (20) are fitted. The connector body collar a (20) is fixed with an interference fit. The outer wall of the connector body sealing ring a (18) has an exposed arc-shaped protrusion. The connector body sealing ring a (18) is located in the protrusion a (64). The top of the connector body a (15) and the inner side of the top of the connector body collar a (20) are flush. A retaining ring is provided on the outer side of the top of the connector body collar a (20). a. The housing valve seat (17) includes an inverted truncated cone body, a straight rod body and a fixed rod. The housing valve seat (17) is fixedly provided with a fixed rod. The outer wall of the inverted truncated cone body is provided with a housing valve core O-ring (19). The inner wall of the rear end of the housing valve sleeve (24) is provided with an inclined wall a. The inclined wall a contacts the housing valve core O-ring (19). The outer wall of the middle part of the housing valve sleeve (24) is provided with a convex ring b. A housing valve sleeve spring (21) is provided between the convex ring b and the housing valve sleeve seat (12). There is a distance between the straight rod body and the housing valve sleeve (24).

7. The modular valve hydraulic quick connector according to claim 1, characterized in that: The module valve male plug b (57) includes a plug (31), a plug connector (32) sleeved on the front outer wall of the plug (31), a connector body b (45) sleeved on the front outer wall of the plug connector (32), a sliding sleeve b (33) between the plug (31) and the connector body b (45), a plug valve seat (35) in the middle inner wall of the plug connector (32), a plug valve core (36) in the rear inner wall of the plug (31), a plug valve core rod (47) in the inner side of the plug valve core (36), a plug valve core spring (41) between the plug valve core rod (47) and the plug valve seat (35), the plug valve core spring (41) sleeved in the plug valve seat (35), the outer wall of the sliding sleeve b (33) is threaded, a plug body collar b (50) sleeved on the front outer wall of the connector body b (45), and a connector body sealing ring b (48) between the connector body b (45) and the plug body collar b (50).

8. The modular valve hydraulic quick connector according to claim 1, characterized in that: The inner wall of the rear part of the plug (31) is provided with a plug plastic ring (39) and a plug O-ring (49). The plug (31) and the plug connector (32) are provided with a plug connector O-ring (38) and a plug connector plastic ring (42). The inner wall of the middle part of the sliding sleeve b (33) is provided with a convex ring b. The convex ring b has a movable position. The movable position is provided with an exhaust hole b. The exhaust hole b is located on the plug connector (32). The convex ring b is provided with a sliding sleeve plastic ring b (40) and a sliding sleeve O-ring d (43). The convex ring b is locked between the plug (31) and the connector body b (45). The outer wall of the sliding sleeve b (33) is provided with a sliding sleeve O-ring c (37). The inner wall of the rear part of the sliding sleeve b (33) is provided with a sliding sleeve sealing gasket b (34). The outer wall of the rear part of the connector body b (45) is provided with a connector O-ring b (44) and a plug plastic ring b (46).

9. The modular valve hydraulic quick connector according to claim 1, characterized in that: The front outer wall of the connector body b (45) is recessed with a groove b, in which a connector body sealing ring b (48) and a plug body collar b (50) are fitted. The plug body collar b (50) is fixed with an interference fit. The outer wall of the connector body sealing ring b (48) has an arc-shaped protrusion exposed. The connector body sealing ring b (48) is located in the protrusion b. The top of the connector body b (45) and the top inner side of the plug body collar b (50) are flush. A retaining ring b is provided on the outer side of the top of the plug body collar b (50).

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