A female connector

Abstract

The utility model discloses a female plug, the shell is equipped with the plug end and export end, the ejector rod fixed mounting is in the shell, and the ejector rod is equipped with the limit portion and sealing structure, the first movable sleeve can be slidably sleeved in the ejector rod outer periphery, and the first movable sleeve can move between the sealed position and the open position, and the first movable sleeve is formed with or the first movable sleeve, the ejector rod and the shell form the flow channel that communicates export end, and the side of the first movable sleeve adjacent to the plug end is equipped with the valve port that communicates the flow channel, the second movable sleeve is sleeved in the first movable sleeve outer periphery, and the plug end is equipped with the limit structure, and the shell, the first movable sleeve and the second movable sleeve form the sealed cavity, the first elastic part and the second elastic part are arranged in the sealed cavity, and the first movable sleeve has the trend of keeping the resistance and limit portion under the action of the first elastic part, the second movable sleeve has the trend of keeping the resistance and limit structure under the action of the second elastic part, and the metal powder pollution medium that can effectively avoid the first elastic part and the second elastic part generate.

Description

Technical Field

[0001] This utility model relates to the technical field of quick-connect structures, and in particular to a female connector. Background Technology

[0002] Quick-connect couplings are the most convenient plug-and-play connection method, especially advantageous in challenging and difficult-to-use situations where connecting gas or liquid lines in automobiles is inconvenient. Existing quick-connect couplings include male and female connectors for rapid mating. However, the spring in the current female connector is located within the flow channel, and the metal dust generated during spring operation can contaminate the medium in the flow channel. Furthermore, achieving self-sealing of the female connector before and after mating with the male connector to prevent internal medium leakage is a technical problem that needs to be solved. Therefore, improvements to existing female connectors are necessary. Summary of the Invention

[0003] The purpose of this invention is to provide a female insert that isolates the first elastic element and the second elastic element outside the medium channel, thereby effectively preventing the metal powder generated by the first elastic element and the second elastic element from contaminating the medium.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a female insert, comprising a shell, a push rod, a first movable sleeve, a second movable sleeve, a first elastic element, and a second elastic element; The housing is equipped with a plug-in end and an outlet end; The push rod is fixedly installed inside the housing, and a limiting part and a sealing structure are provided on the side of the push rod near the insertion end; The first movable sleeve is slidably sleeved on the outer periphery of the push rod. The first movable sleeve and the push rod form a flow channel connecting the outlet end, or the first movable sleeve, the push rod and the housing form a flow channel connecting the outlet end. The side of the first movable sleeve adjacent to the insertion end is provided with a valve port connecting the flow channel. The first movable sleeve can move between the sealing position that abuts the limiting part and the opening position that moves away from the limiting part. The second movable sleeve is slidably fitted around the outer periphery of the first movable sleeve. The insertion end is provided with a limiting structure to restrict the second movable sleeve from sliding out of the housing. The housing, the first movable sleeve and the second movable sleeve form a sealed cavity. The first elastic element is disposed in the sealed cavity, and the first movable sleeve tends to maintain contact with the limiting part under the action of the first elastic element. The second elastic element is disposed inside the sealed cavity, and the second movable sleeve tends to maintain the anti-contact limiting structure under the action of the second elastic element.

[0005] Furthermore, a fixing seat is connected to one side of the push rod near the outlet end, and the push rod is fixedly installed in the housing through the fixing seat. The fixing seat is provided with a connecting hole that connects the flow channel and the outlet end.

[0006] Furthermore, the housing is provided with a protruding ring, and the first movable sleeve is slidably inserted into the protruding ring, and the first movable sleeve and the protruding ring are sealed together by a first sealing ring.

[0007] Furthermore, the outer periphery of the first movable sleeve is provided with an abutment ring, the first elastic element presses against the abutment ring and the housing, and there is a certain distance between the second movable sleeve and the abutment ring. When the second movable sleeve moves in the direction of compressing the second elastic element, the second movable sleeve first moves independently by a stroke L1. When the second movable sleeve moves to contact the abutment ring, it drives the first movable sleeve to move synchronously by a stroke L2.

[0008] Furthermore, the housing is provided with a vent that communicates with the sealed cavity.

[0009] Furthermore, a partition ring is provided inside the sealing cavity to separate the first elastic element and the second elastic element.

[0010] Furthermore, the limiting structure is a limiting ring threaded to the insertion end, and the outer side of the limiting ring is provided with a guide opening that expands from the inside to the outside.

[0011] Furthermore, a relaxation ring is fitted into one side of the housing corresponding to the outlet end, and the fixing seat abuts against the relaxation ring.

[0012] Furthermore, the outer diameter of the first movable sleeve on the side adjacent to the limiting part is adapted to the outer diameter of the limiting part, and the inner diameter of the second movable sleeve is adapted to the outer diameter of the limiting part.

[0013] Furthermore, when the first movable sleeve is in the sealed position, the sealing structure seals with the inner wall of the first movable sleeve to seal the valve port; when the first movable sleeve is in the open position, the sealing structure releases its seal with the inner wall of the first movable sleeve to open the valve port.

[0014] In summary, this utility model has the following beneficial effects: 1. The female insert of this utility model isolates the first elastic element and the second elastic element outside the medium channel, which can effectively prevent the metal powder generated by the first elastic element and the second elastic element from contaminating the medium; 2. In this utility model, the first movable sleeve tends to remain in a sealed position under the action of the first elastic element, so that the female plug can quickly self-seal before docking and after docking and separation, thereby avoiding leakage of internal media. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 This is a structural diagram of the female and male connectors of this utility model during the connection process.

[0018] Figure 4 This is a schematic diagram of the structure of the female and male plugs of this utility model when they are connected.

[0019] In the figure: 10, housing; 11, insertion end; 12, outlet end; 13, limiting structure; 14, sealing cavity; 15, convex ring; 151, first sealing ring; 16, breather hole; 20, push rod; 21, limiting part; 22, sealing structure; 23, fixed seat; 231, connecting hole; 30, first movable sleeve; 31, flow channel; 32, valve port; 33, abutment ring; 40, second movable sleeve; 50, first elastic element; 60, second elastic element; 70, separating ring; 80, loosening ring; 90, male plug; 91, sealing device. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1-4 As shown, a female insert includes a housing 10, a push rod 20, a first movable sleeve 30, a second movable sleeve 40, a first elastic element 50, and a second elastic element 60, which constitute the basic structure of this utility model.

[0022] The housing 10 is provided with a plug end 11 and an outlet end 12. The medium flows from the plug end 11 to the outlet end 12 within the housing 10. The female plug quickly mates with the male plug 90 through the plug end 11.

[0023] The top rod 20 is fixedly installed inside the housing 10. The top rod 20 is provided with a limiting part 21 and a sealing structure 22 on one side adjacent to the insertion end 11. The limiting part 21 is radially protruding. The top rod 20 is provided with a first annular groove on the side of the limiting part 21. The sealing structure 22 is installed in the first annular groove.

[0024] The first movable sleeve 30 is slidably sleeved on the outer periphery of the top rod 20. The first movable sleeve 30 and the top rod 20 form a flow channel 31 that connects to the outlet end 12, or the first movable sleeve 30, the top rod 20 and the housing 10 form a flow channel 31. The first movable sleeve 30 is provided with a valve port 32 that connects to the flow channel 31 on the side adjacent to the insertion end 11. The first movable sleeve 30 can move between the sealed position of the contact limiting part 21 and the open position of the movement away from the limiting part 21. When the first movable sleeve 30 is in the sealed position, the sealing structure 22 seals with the inner wall of the first movable sleeve 30 to seal the valve port 32. When the first movable sleeve 30 is in the open position, the sealing structure 22 releases the sealing with the inner wall of the first movable sleeve 30 to open the valve port 32.

[0025] The second movable sleeve 40 is slidably fitted around the outer periphery of the first movable sleeve 30. The insertion end 11 is provided with a limiting structure 13 to restrict the second movable sleeve 40 from sliding out of the housing 10. The housing 10, the first movable sleeve 30 and the second movable sleeve 40 form a sealed cavity 14.

[0026] The first elastic element 50 is disposed in the sealing cavity 14. The first end of the first elastic element 50 abuts against the housing 10, and the second end of the first elastic element 50 abuts against the first movable sleeve 30. Under the action of the first elastic element 50, the first movable sleeve 30 tends to maintain contact with the limiting part 21. The second elastic element 60 is disposed in the sealing cavity 14. The first end of the second elastic element 60 abuts against the housing 10, and the second end of the second elastic element 60 abuts against the second movable sleeve 40. Under the action of the second elastic element 60, the second movable sleeve 40 tends to maintain contact with the limiting structure 13. The first elastic element 50 and the second elastic element 60 are isolated outside the medium channel, which can effectively prevent the metal powder generated by the first elastic element 50 and the second elastic element 60 from contaminating the medium.

[0027] In some embodiments, a fixing seat 23 is connected to the side of the push rod 20 adjacent to the outlet end 12. The push rod 20 is fixedly installed in the housing 10 through the fixing seat 23. The fixing seat 23 is provided with a connecting hole 231 that connects the flow channel 31 and the outlet end 12. Multiple flow holes are provided and are circumferentially distributed in the fixing seat 23. The fixing seat 23 and the push rod 20 can be fixedly connected separately or can be an integrally formed structure.

[0028] In some embodiments, the housing 10 is provided with a protruding ring 15, the first movable sleeve 30 is slidably inserted into the protruding ring 15, and the first movable sleeve 30 and the protruding ring 15 are sealed together by a first sealing ring 151. The protruding ring 15 is used to limit and guide the first movable sleeve 30.

[0029] In some embodiments, the outer periphery of the first movable sleeve 30 is provided with an abutment ring 33, the first elastic member 50 abuts against the abutment ring 33 and the housing 10, and the second movable sleeve 40 is at a certain distance from the abutment ring 33. When the second movable sleeve 40 moves in the direction of compressing the second elastic member 60, the second movable sleeve 40 first moves independently by a stroke L1. When the second movable sleeve 40 moves to contact the abutment ring 33, it drives the first movable sleeve 30 to move synchronously by a stroke L2.

[0030] During the docking process between the male plug 90 and the female plug, the male plug 90 first pushes the second movable sleeve 40 by stroke L1. During this process, the push rod 20 of the female plug and the first movable sleeve 30 remain stationary. As the male plug 90 inserts into the female plug, the push rod 20 of the female plug and the first movable sleeve 30 will be inserted into the valve port 32 of the male plug 90. At this time, the first movable sleeve 30 and the sealing device 91 in the valve port of the male plug 90 are sealed together. Then, the male plug 90 and the female plug continue to be inserted deeper. The male plug 90 will drive the second movable sleeve 40 and the first movable sleeve 30 to move synchronously towards the outlet end 12 by stroke L2. During this process, since the male plug 90 and the first movable sleeve 30 move synchronously, the sealing device 91 of the first movable sleeve 30 and the male plug 90 remain sealed. At the same time, since the first movable sleeve 30 moves relative to the push rod 20, the sealing structure 22 releases the sealing fit with the inner wall of the first movable sleeve 30 and opens the valve port 32, thereby connecting the medium channel in the male plug 90 and the female plug.

[0031] In some embodiments, the housing 10 is provided with a vent 16 communicating with the sealed cavity 14. When the first movable sleeve 30 and / or the second movable sleeve 40 moves toward the outlet end 12, the air in the sealed cavity 14 can be discharged to the outside through the vent 16. In other words, the vent 16 facilitates the smooth sliding of the first movable sleeve 30 and the second movable sleeve 40 within the housing 10.

[0032] In some embodiments, a partition ring 70 is provided in the sealing cavity 14 to separate the first elastic member 50 and the second elastic member 60. The partition ring 70 prevents the first elastic member 50 and the second elastic member 60 from shifting during operation, thus playing a positioning role.

[0033] In some embodiments, the limiting structure 13 is a limiting ring threaded to the insertion end 11. The outer side of the limiting ring is provided with a guide opening that expands from the inside to the outside. The guide opening facilitates the insertion of the male plug 90. The outer end of the limiting ring is provided with a flange. The insertion end 11 is provided with an installation space that matches the flange. A limiting end face is formed between the installation space and the inner wall of the housing 10. The axial position of the limiting ring is limited by the limiting end face.

[0034] In some embodiments, a relaxation ring 80 is fitted onto the side of the housing 10 corresponding to the outlet end 12, and the fixing seat 23 abuts against the relaxation ring 80. The relaxation ring 80 serves to prevent the fixing seat 23 from becoming loose. In some embodiments, the outer diameter of the first movable sleeve 30 on the side adjacent to the limiting portion 21 is adapted to the outer diameter of the limiting portion 21, and the inner diameter of the second movable sleeve 40 is adapted to the outer diameter of the limiting portion 21.

[0035] In summary, this utility model has the following beneficial effects: In this invention, the first movable sleeve 30 tends to remain in a sealed position under the action of the first elastic element 50, so that the female plug can quickly self-seal before docking and after docking and separation, thereby avoiding leakage of internal media.

[0036] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A female connector, characterized in that: include The housing (10) is provided with a plug-in end (11) and an outlet end (12); The top rod (20) is fixedly installed inside the housing (10). The top rod (20) has a limiting part (21) and a sealing structure (22) on the side adjacent to the plug end (11). The first movable sleeve (30) is slidably sleeved on the outer periphery of the top rod (20). The first movable sleeve (30) and the top rod (20) form a flow channel (31) that connects to the outlet end (12), or the first movable sleeve (30), the top rod (20) and the housing (10) form a flow channel (31). The first movable sleeve (30) has a valve port (32) that connects to the flow channel (31) on the side adjacent to the insertion end (11). The first movable sleeve (30) can move between the sealed position of the contact limiting part (21) and the open position of the movement away from the limiting part (21). The second movable sleeve (40) is slidably fitted around the outer periphery of the first movable sleeve (30). The insertion end (11) is provided with a limiting structure (13) to restrict the second movable sleeve (40) from sliding out of the housing (10). The housing (10), the first movable sleeve (30) and the second movable sleeve (40) form a sealed cavity (14). The first elastic element (50) is disposed in the sealed cavity (14), and the first movable sleeve (30) tends to maintain the contact limiting part (21) under the action of the first elastic element (50). The second elastic element (60) is disposed in the sealing cavity (14), and the second movable sleeve (40) tends to maintain the contact limiting structure (13) under the action of the second elastic element (60).

2. A female connector according to claim 1, characterized in that: The top rod (20) is connected to a fixed seat (23) on the side near the outlet end (12). The top rod (20) is fixedly installed in the housing (10) through the fixed seat (23). The fixed seat (23) is provided with a connecting hole (231) connecting the flow channel (31) and the outlet end (12).

3. A female connector according to claim 1, characterized in that: The housing (10) is provided with a protruding ring (15), the first movable sleeve (30) and the protruding ring (15) are slidably inserted and engaged, and the first movable sleeve (30) and the protruding ring (15) are sealed and engaged by a first sealing ring (151).

4. A female connector according to claim 1, characterized in that: The first movable sleeve (30) is provided with an abutment ring (33) on its outer periphery. The first elastic element (50) presses against the abutment ring (33) and the housing (10). The second movable sleeve (40) is at a certain distance from the abutment ring (33). When the second movable sleeve (40) moves in the direction of compressing the second elastic element (60), the second movable sleeve (40) moves independently by stroke L1. When the second movable sleeve (40) moves to contact the abutment ring (33), it drives the first movable sleeve (30) to move synchronously by stroke L2.

5. A female connector according to claim 1, characterized in that: The housing (10) is provided with a vent (16) that communicates with the sealed cavity (14).

6. A female connector according to claim 1, characterized in that: A partition ring (70) is provided inside the sealed cavity (14) to separate the first elastic element (50) and the second elastic element (60).

7. A female connector according to claim 1, characterized in that: The limiting structure (13) is a limiting ring threaded to the plug end (11), and the outer side of the limiting ring is provided with a guide opening that expands from the inside to the outside.

8. A female connector according to claim 2, characterized in that: The housing (10) is fitted with a relaxation ring (80) on one side corresponding to the outlet end (12), and the fixing seat (23) abuts against the relaxation ring (80).

9. A female connector according to claim 1, characterized in that: The outer diameter of the first movable sleeve (30) on the side adjacent to the limiting part (21) is adapted to the outer diameter of the limiting part (21), and the inner diameter of the second movable sleeve (40) is adapted to the outer diameter of the limiting part (21).

10. A female connector according to any one of claims 1-9, characterized in that: When the first movable sleeve (30) is in the sealed position, the sealing structure (22) seals the valve port (32) by engaging with the inner wall of the first movable sleeve (30). When the first movable sleeve (30) is in the open position, the sealing structure (22) releases its sealing engagement with the inner wall of the first movable sleeve (30) to open the valve port (32).

Images