Female fluid quick connector

Abstract

The utility model relates to a kind of connecting device of quick disassembly and assembly, especially female connector for fluid quick connector.Female connector for fluid quick connector, including shell and outer sleeve, shell rear outer wall is equipped with shell connector body, shell front outer wall is equipped with outer sleeve, outer sleeve is connected with steel ball, steel ball is in shell through-hole, outer sleeve spring is equipped between shell connector body and outer sleeve, shell and shell connector body junction is equipped with shell valve core, shell valve core and shell are equipped with bushing, shell valve core spring is equipped between bushing and shell rear portion of shell valve core.The utility model has the advantages that: shell in valve core valve seat is equivalent to integrated design, fluid hole seat increases the number of flow channel hole bushing inner wall increases flow channel area, and flow channel comes back and forth bending route, increases flow velocity, reduces impact area, steel ball locking mode, locking and disconnecting are realized by push-pull, easy to operate, insertion and disconnecting state can keep sealing, no leakage, safe and reliable.

Description

Technical Field

[0001] This utility model relates to a quick-connection device, especially a fluid quick connector. 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 leakage when the pipeline is disconnected, 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. Existing structures typically include a valve seat and valve core in the female connector, resulting in an unreasonable flow channel design that may affect the performance and safety of the quick coupling. Summary of the Invention

[0003] To address the aforementioned technical problem of unreasonable flow channel design, this utility model provides a female connector for quick fluid couplings.

[0004] The technical solution of this utility model is as follows: A female quick-connector for fluids includes a housing and an outer sleeve. A housing connector body is fitted onto the rear outer wall of the housing, and an outer sleeve is fitted onto the front outer wall of the housing. The outer sleeve is connected to a steel ball, which is located in a through hole in the housing. An outer sleeve spring is provided between the housing connector body and the outer sleeve. A housing valve core is provided at the connection between the housing and the housing connector body. A bushing is provided between the housing valve core and the housing. A housing valve core spring is provided between the bushing and the rear of the housing valve core.

[0005] The outer wall of the front end of the housing is provided with an outer retaining ring, the inner wall of the middle of the housing connector is recessed with a housing connector O-ring a, the outer side of the housing connector O-ring a is provided with a housing, and the rear side of the outer wall of the middle of the housing connector is provided with a housing connector O-ring b.

[0006] The front part of the valve core is an annular body b, which is connected to the fluid orifice seat through a straight rod. The fluid orifice seat has a fluid orifice in the annular shape, and a guide wall a is opened on the outer side of the fluid orifice and a guide wall b is opened on the inner side. A boss is formed at the rear of the fluid orifice seat, and the guide wall b is on the outer wall of the boss.

[0007] The inner wall of the housing connector is provided with a convex wall, an outer inclined wall a, an inner inclined wall b, the front part of the inclined wall b is located behind the flow guiding inclined wall a, the convex wall is aligned with the fluid hole, the inner wall of the rear part of the bushing is provided with an inclined wall c, and the outer wall of the rear part of the bushing is in contact with the inner wall of the housing.

[0008] The technical solution of this utility model has a novel structure and a clever and simple design. The valve core and valve seat in the housing are essentially integrated. The fluid orifice seat increases the number of flow channel holes, and the inner wall of the bushing increases the flow channel area. The flow channel has a back-and-forth curved route, which increases the flow velocity and reduces the impact area, making it more reasonable. The steel ball locking method achieves locking and unlocking by pushing and pulling, which is convenient to operate. It can maintain a seal in both the plugged and unplugged states, with no leakage, and is safe and reliable. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 , 3 This is a schematic diagram of the structure of the housing valve core in this utility model.

[0010] Figure 4 This is a schematic diagram of the structure of this utility model used in conjunction with a male connector; Figure 5 This is a schematic diagram of the female connector; Figure 6 , 7 Figures 8 and 9 are structural diagrams of the plug valve core. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0012] like Figure 1 , 2 The fluid quick connector shown in Figure 3 includes a female connector comprising a housing 1 and an outer sleeve 3. A housing connector body 5 is fitted on the rear outer wall of the housing 1, and an outer sleeve 3 is fitted on the front outer wall of the housing 1. The outer sleeve 3 is connected to a steel ball 12, which is located in a through hole in the housing 1. An outer sleeve spring 16 is provided between the housing connector body 5 and the outer sleeve 3. A housing valve core 4 is provided at the connection between the housing 1 and the housing connector body 5. A bushing 7 is provided between the housing valve core 4 and the housing 1. A housing valve core spring 14 is provided between the bushing 7 and the rear of the housing valve core 4.

[0013] The outer wall of the front end of the housing 1 is provided with an outer retaining ring 13, the inner wall of the housing connector 5 is recessed and provided with a housing connector O-ring a11, the outer side of the housing connector O-ring a11 is provided with the housing 1, and the rear side of the outer wall of the middle part of the housing connector 5 is provided with a housing connector O-ring b18.

[0014] The front part of the housing valve core 4 is an annular body b23, which is connected to the fluid orifice seat 24 through a straight rod. The fluid orifice seat 24 has a fluid orifice in the annular shape. A guide wall a25 is opened on the outer side of the fluid orifice, and a guide wall b26 is opened on the inner side. A boss is formed at the rear of the fluid orifice seat 24, and the guide wall b26 is on the outer wall of the boss.

[0015] The inner wall of the housing connector 5 is provided with a convex wall 27, the outer side of the convex wall 27 is an inclined wall a, and the inner side is an inclined wall b31. The front part of the inclined wall b31 is located behind the flow guiding inclined wall a25. The convex wall 27 is aligned with the fluid hole. The rear inner wall of the bushing 7 is provided with an inclined wall c30. The rear outer wall of the bushing 7 is in contact with the inner wall of the housing 1.

[0016] like Figure 4 , 5 As shown in Figures 6, 7, 8, and 9, in use, there is also a male connector, which includes a plug 2. A plug connector body 8 is fitted onto the outer rear wall of the plug 2. A plug valve core 6 is provided on the inner front wall of the plug 2. A plug valve core spring 15 is provided between the plug connector body 8 and the plug valve core 6. A retaining groove is provided on the outer middle wall of the plug 2. The inner diameter of the plug connector body 8 is smaller than the inner diameter of the rear wall of the plug 2. The plug connector body 8 protrudes inward to form a convex ring. The plug valve core spring 15 is provided inside the convex ring. The plug connector body 8 is Z-shaped, and a [missing information - likely a design element] is provided at the right angle of the inner wall. The plug 2 has a recessed area with an O-ring 17 for the connector body. The inner wall of the front part of the plug 2 has an expanded inner wall section located between the plug valve core 6 and the rear inner wall. The inner wall of the convex ring is a smooth wall, with a sloping wall d behind it. The front part of the plug valve core 6 is an annular body a19 with a recessed area in the middle. The O-ring a9 is located in this recessed area. Spring blocks 20 are located above and below the rear side of the annular body a19. A limiting step is located on the outer side of the spring blocks 20. A flow guide boss 21 is located between the spring blocks 20. 21 is shaped like a frustum, with guide ramps 22 on both outer walls of the guide boss 21. The plug 2 actuates the bushing 7, and the housing valve core 4 and plug valve core 6 contact each other, opening the flow channel in the expansion inner wall section. The guide ramp b26 extends outward through the expansion inner wall section, easily increasing the fluid velocity. The fluid orifice seat increases the number of flow channel holes. The guide boss prevents long-term scouring from causing structural instability. Here, from the inner wall of the convex ring to the boss, the flow path is straight, resulting in significant impact. The boss has a thickness-added weight balance to resist impact, and the fluid is smoothly depressurized through the frustum outer wall and the guide ramps. From the outermost to the innermost wall of the expansion flow, passing through the annular body a19 and the rear frustum, from the outside to the inside, through the straight rod body, and then to the bushing 7 inclined wall c30, the inclined wall c expands the area, through the fluid hole, to the inclined wall b31, and finally to the convex wall 27. This route is a back-and-forth curved route with a fast flow rate. The shell material and galvanized layer have wear resistance and corrosion resistance, flat anti-pollution, leak-free structure, fluid connectors and management, and various cold plate mounting methods. It is suitable for vehicle-mounted, ship-mounted and ground environments, and is mainly used in liquid cooling heat dissipation systems for radar equipment, wind power converter cabinets, and supercomputers.

[0017] It should be understood that the above description is only a preferred embodiment of the present utility model and is not sufficient to limit the technical solution of the present utility model. For those skilled in the art, within the spirit and principles of the present utility model, additions, subtractions, substitutions, transformations or improvements can be made based on the above description, and all such additions, subtractions, substitutions or improvements should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A female quick-connect fitting for fluids, comprising a housing (1) and an outer sleeve (3), characterized in that: The outer wall of the rear part of the housing (1) is fitted with a housing connector body (5), and the outer wall of the front part of the housing (1) is fitted with an outer sleeve (3). The outer sleeve (3) is connected to a steel ball (12). The steel ball (12) is in the through hole of the housing (1). An outer sleeve spring (16) is provided between the housing connector body (5) and the outer sleeve (3). A housing valve core (4) is provided at the connection between the housing (1) and the housing connector body (5). A bushing (7) is provided between the housing valve core (4) and the housing (1). A housing valve core spring (14) is provided between the bushing (7) and the rear part of the housing valve core (4). An outer sleeve retaining ring (13) is provided on the outer wall of the front end of the housing (1). A housing connector body O-ring a (11) is recessed in the middle inner wall of the housing connector body (5). The housing (1) is provided on the outer side of the housing connector body O-ring a (11). The middle part of the housing connector body (5) The outer wall is provided with a housing connector body O-ring b (18) on the rear side. The front part of the housing valve core (4) is an annular body b (23). The annular body b (23) is connected to the fluid hole seat (24) through a straight rod body. The fluid hole seat (24) has a fluid hole in the annular shape. The fluid hole has a guide wall a (25) on the outer side and a guide wall b (26) on the inner side. The fluid hole seat (24) forms a boss at the rear. The guide wall b (26) is on the outer wall of the boss. The inner wall of the housing connector body (5) is provided with a convex wall (27). The outer side of the convex wall (27) is a slant wall a, and the inner side is a slant wall b (31). The front part of the slant wall b (31) is located behind the guide wall a (25). The convex wall (27) is aligned with the fluid hole. The rear inner wall of the bushing (7) is provided with a slant wall c (30). The rear outer wall of the bushing (7) is in contact with the inner wall of the housing (1).

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