Dry disconnect coupling

Abstract

The utility model relates to the technical field of quick -operation joint, propose a kind of dry disconnecting joint, including mutually matched female head and male head, the male head includes male joint body, male joint valve and support assembly, positioning hole is opened on male joint body inner wall, the male joint valve includes valve body, the side of valve body towards female head is equipped with mounting groove, the mounting groove can be inside and outside slidingly connected with pressing block, the pressing block and valve body are directly connected with first spring, positioning column is passed and is equipped on the side wall of valve body, positioning column and pressing block are hinged by connecting rod between. The utility model has the beneficial effects that: in male joint valve place setting positioning column, positioning hole and other second relocking structure, while achieving multiple sealing locking to male joint valve, still can be when butting with female joint valve valve body through the extrusion of female joint valve valve body realizes quick communication.

Description

Technical Field

[0001] This utility model relates to the technical field of quick connectors, specifically to a dry disconnect connector. Background Technology

[0002] Dry disconnect couplings, as key components in fluid transport systems, are widely used in hydraulic transmission, petrochemicals, biomedicine, and other fields. Their core function is to ensure reliable sealing during pipeline connection and disconnection, preventing safety hazards and environmental damage caused by media leakage. In existing couplings, the male valve disc, in order to be easily opened and connected by the female valve disc when engaged, relies on an elastic element for sealing when not connected, rather than a rigid element with strong locking properties. This leads to fatigue failure of the elastic element over long-term use, or displacement of the male valve disc due to vibration or impact during equipment operation, resulting in poor sealing and media leakage, thus causing economic losses. Utility Model Content

[0003] This utility model proposes a dry disconnecting connector, which sets a second locking structure such as a positioning post and positioning hole at the male connector valve disc. While achieving multiple sealing and locking of the male connector valve disc, it can still achieve rapid connection by squeezing the female connector valve disc when docking with it.

[0004] Therefore, the technical solution adopted is as follows: A dry disconnect connector includes a female connector and a male connector that mate with each other. The male connector includes a male connector body, a male connector valve disc filled in the connecting end of the male connector body, and a support assembly fixed to the male connector valve disc. A plurality of positioning holes are evenly arranged around the inner wall of the connecting end of the male connector body. The male connector valve disc includes a valve body. An installation groove is formed on the side of the valve body facing the female connector. A pressing block is slidably connected inward and outward in the installation groove. A first spring is directly connected to the pressing block and the valve body. A plurality of positioning pins are slidably inserted through the plurality of positioning holes on the side wall of the valve body. In the natural state of the first spring, each positioning pin is inserted into the corresponding positioning hole. The positioning pins are hinged to the pressing block by a connecting rod. As the pressing block gradually penetrates deeper into the installation groove, the connecting rod drives the positioning pins to gradually disengage from the positioning holes.

[0005] A further technical solution is that the female connector includes a female connector body and a rotating sleeve rotatably connected to the female connector body. The rotating sleeve has a female connector bracket that is slidably connected to it. A female connector valve is fixed at one end of the female connector bracket facing the male connector. A spiral groove is formed on the inner wall of the rotating sleeve. A limiting protrusion that is embedded in the spiral groove and matches it is fixed on the female connector bracket. A snap-fit ​​groove is formed on the outer side of the male connector body for the rotating sleeve to be rotated and snapped into.

[0006] A further technical solution is that a rotating handwheel is fixed on the outer wall of the rotating sleeve, and the number of the rotating handwheels is two that are arranged opposite to each other.

[0007] A further technical solution is that the support assembly includes a male connector bracket fixed inside the male connector valve disc, a support plate fixed on the inner wall of the male connector body, the male connector bracket passing through the support plate and slidably connected thereto, and a second spring sleeved on the male connector bracket connecting the male connector valve disc and the support plate.

[0008] A further technical solution is that the spiral groove includes straight segments at both ends and an inclined segment connecting the two straight segments, and the straight segments are arranged along the rotation path of the rotating sleeve.

[0009] The working principle and beneficial effects of this application are as follows: A second layer of protection structure, consisting of a positioning post and a positioning hole, is installed at the male connector valve disc. When the male connector is not mated, this mechanical locking further fixes the position of the male connector valve disc. Thus, even if the support component of the male connector valve disc fails, the male connector valve disc will not shift and cause sealing leakage. Furthermore, when mating with the female connector, it can still achieve quick connection and locking through the compression of the female connector valve disc without additional operation. This ensures sealing reliability without affecting the quick connection of the connector. Attached Figure Description

[0010] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a cross-sectional structural diagram of this application; Figure 3 This is a schematic diagram of the male connector described in this application; Figure 4 This is a schematic diagram of the exploded structure of the male connector valve disc described in this application; Figure 5 This is a cross-sectional view of the male connector valve disc described in this application.

[0012] In the diagram: 1. Female connector; 11. Female connector body; 12. Rotating sleeve; 13. Rotating handwheel; 14. Female connector valve disc; 15. Female connector bracket; 151. Limiting protrusion; 16. Spiral groove; 2. Male connector; 21. Male connector body; 22. Male connector valve disc; 221. Valve body; 222. Mounting groove; 223. First spring; 224. Pressing block; 225. Positioning pin; 226. Connecting rod; 23. Male connector bracket; 24. Second spring; 25. Support plate; 26. Positioning hole; 27. Snap-fit ​​groove. Detailed Implementation

[0013] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0014] like Figures 1-5 As shown, a dry disconnect connector includes a female connector 1 and a male connector 2 that mate with each other. The male connector 2 includes a male connector body 21, a male connector valve disc 22 filling the connecting end of the male connector body 21, and a support assembly fixed to the male connector valve disc 22. A plurality of positioning holes 26 are evenly arranged around the inner wall of the connecting end of the male connector body 21. The male connector valve disc 22 includes a valve body 221. A mounting groove 222 is formed on the side of the valve body 221 facing the female connector 1. A pressing block 22 is slidably connected inside and outside the mounting groove 222. 4. The pressing block 224 and the valve body 221 are directly connected by a first spring 223. A number of positioning pins 225 are slidably inserted through a number of positioning holes 26 on the side wall of the valve body 221. In the natural state of the first spring 223, each positioning pin 225 is inserted into the corresponding positioning hole 26. The positioning pin 225 and the pressing block 224 are hinged by a connecting rod 226. When the pressing block 224 gradually penetrates into the mounting groove 222, the connecting rod 226 drives the positioning pin 225 to gradually disengage from the positioning hole 26.

[0015] Among them, such as Figure 2 As shown, one embodiment of the female connector 1 includes a female connector body 11 and a rotating sleeve 12 rotatably connected to the female connector body 11. The rotating sleeve 12 has a female connector bracket 15 slidably connected to it. A female connector valve disc 14 is fixed to one end of the female connector bracket 15 facing the male connector 2. A spiral groove 16 is formed on the inner wall of the rotating sleeve 12. A limiting protrusion 151, matching the spiral groove 16, is fixed on the female connector bracket 15. A locking groove 27 is formed on the outer side of the male connector body 21 for the rotating sleeve 12 to rotate and engage. The spiral groove 16 includes a straight section and an inclined section. The straight section is used for initial positioning when the female connector 1 and male connector 2 are connected, allowing the limiting protrusion 151 to rotate within it to complete the connection and locking. The inclined section, through the guiding effect of the inclined surface, pushes the limiting protrusion 151 to move axially as the rotating sleeve 12 continues to rotate, thereby realizing the axial transmission of the female connector bracket 15.

[0016] One embodiment of the support assembly includes a male connector bracket 23 fixed inside the male connector valve disc 22. A support plate 25 is fixed to the inner wall of the male connector body 21. The male connector bracket 23 passes through the support plate 25 and is slidably connected to it. A second spring 24 sleeved on the male connector bracket 23 connects the male connector valve disc 22 and the support plate 25. Thus, when not mated, the second spring 24 provides elastic force to push the male connector valve disc 22 towards the male connector 2 port, sealing it with the male connector body 21. The support plate 25 provides sliding support and guidance for the male connector bracket 23.

[0017] In this embodiment, when the female connector 1 and the male connector 2 are not connected, both are in an independent sealed state to prevent leakage of the medium on their respective sides. The female connector bracket 15 in the female connector 1 is in the initial position under the limiting action of the spiral groove 16, and the female connector valve disc 14 is tightly fitted with the female connector body 11 to form a seal on the female connector 1 and prevent leakage of the medium from the female connector 1. The second spring 24 in the male connector 2 is in a naturally extended state, and its elasticity pushes the male connector valve disc 22 toward the port of the male connector 2, so that the valve disc is tightly fitted with the male connector body 21 to form a seal.

[0018] At the same time, such as Figure 5 As shown, the first spring 223 pushes the pressing block 224 to the extreme position outside the mounting groove 222. Through the transmission action of the connecting rod 226, the positioning pin 225 extends outward and is locked into the positioning hole 26 of the male connector body 21, thereby achieving mechanical locking of the male connector valve disc 22. That is, when the female connector 1 and the male connector 2 are not connected, the male connector valve disc 22 in the male connector 2 is locked inside the male connector body 21 under the locking action of the positioning pin 225 and the mounting groove 222, which prevents the valve disc from shifting due to vibration, impact or damage to the first spring 223, and further ensures reliable sealing.

[0019] During the overall docking process, the operator first aligns the docking ports of the female connector 1 and the male connector 2 for docking. The female connector valve 14 moves towards the male connector valve 22. The female connector valve 14 first abuts against the pressing block 224 in the male connector valve 22. When the female connector valve 14 contacts the pressing block 224 and continues to press, the pressing block 224 is pressed by the female connector valve 14, overcoming the elastic force of the first spring 223 and moving into the mounting groove 222 until the pressing block 224 is fully inserted. The entire valve is inserted into the mounting groove 222, and finally the female valve disc 14 abuts against the male valve disc 22. During the process of the pressing block 224 entering the mounting groove 222, the movement of the pressing block 224 is transmitted to the positioning pin 225 through the connecting rod 226, causing multiple positioning pins 225 to retract towards the center of the valve body 221 at the same time. The positioning pins 225 finally disengage from the positioning hole 26 of the male connector body 21, completing the unlocking of the male valve disc 22. At this time, the male valve disc 22 can move axially under the action of external force.

[0020] Next, the operator rotates the rotating handwheels 13 on both sides to drive the rotating sleeve 12 to rotate. The rotating sleeve 12 engages with the snap-fit ​​groove 27 on the outside of the male connector 2 body 21 through its structure to complete the connection and locking of the female connector 1 and the male connector 2, preventing the connector from coming loose under pressure. The spiral groove 16 has a straight section and an inclined section. The limiting protrusion 151 at the end of the female connector bracket 15 first rotates in the straight section to achieve the connection and locking of the female connector 1 and the male connector 2. Then, the operator continues to rotate the rotating handwheel 13. Under the restriction of the inclined section of the spiral groove 16, the rotating sleeve 12 rotates and drives the female connector bracket 15 to move axially. At this time, the female connector valve 14 moves toward the male connector valve 22 and pushes open the male connector valve 22. When the rotating sleeve 12 rotates to the maximum angle, both the female connector valve 14 and the male connector valve 22 are in the maximum open position, and a through medium channel is formed between the female connector 1 and the male connector 2. The medium flows through the connector at full speed.

[0021] When disconnection is required, the operator rotates the handwheel 13 in the reverse direction, causing the rotating sleeve 12 to rotate in the reverse direction. The inclined section of the spiral groove 16 generates a reverse axial force on the limiting protrusion 151 of the female connector bracket 15, pushing the female connector bracket 15 and the female connector valve disc 14 to move away from the male connector valve disc 22. Both the male connector valve disc 22 and the female connector valve disc 14 return to their original positions. The positioning pin 225 is also reinserted into the positioning hole 26 of the male connector body 21 by the action of the first spring 223. Finally, when the rotating sleeve 12 rotates in the reverse direction to the initial position, the engagement state between the rotating sleeve 12 and the male connector body 21 is released, and the female head 1 and the male head 2 can be completely separated. Both remain independently sealed, and there is no media leakage.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dry disconnect connector, comprising a mating female connector (1) and a male connector (2), characterized in that: The male connector (2) includes a male connector body (21), a male connector valve disc (22) filled in the connecting end of the male connector body (21), and a support assembly fixed to the male connector valve disc (22). A plurality of positioning holes (26) are evenly arranged around the inner wall of the connecting end of the male connector body (21). The male connector valve disc (22) includes a valve body (221). A mounting groove (222) is provided on the side of the valve body (221) facing the female connector (1). A pressing block (224) is slidably connected inside and outside the mounting groove (222). The pressing block (224) and the valve body (222) are connected together. 21) A first spring (223) is directly connected. A number of positioning pins (225) are slidably inserted through a number of positioning holes (26) on the side wall of the valve body (221). In the natural state of the first spring (223), each positioning pin (225) is inserted into the corresponding positioning hole (26). The positioning pin (225) is hinged to the pressing block (224) through a connecting rod (226). When the pressing block (224) gradually penetrates into the mounting groove (222), the connecting rod (226) drives the positioning pin (225) to gradually come out of the positioning hole (26).

2. A dry disconnector according to claim 1, characterized in that, The female connector (1) includes a female connector body (11) and a rotating sleeve (12) rotatably connected to the female connector body (11). The rotating sleeve (12) has a female connector bracket (15) slidably connected to it. A female connector valve disc (14) is fixed at one end of the female connector bracket (15) facing the male connector (2). A spiral groove (16) is provided on the inner wall of the rotating sleeve (12). A limiting protrusion (151) is fixed on the female connector bracket (15) and is embedded in the spiral groove (16) and matches it. A snap-fit ​​groove (27) is provided on the outer side of the male connector body (21) for the rotating sleeve (12) to be rotated and snapped in.

3. A dry disconnector according to claim 2, characterized in that, A rotating handwheel (13) is fixed on the outer wall of the rotating sleeve (12), and the number of the rotating handwheels (13) is two that are arranged opposite to each other.

4. A dry disconnector according to claim 1, characterized in that, The support assembly includes a male connector bracket (23) fixed inside the male connector valve disc (22), a support plate (25) fixed on the inner wall of the male connector body (21), the male connector bracket (23) passing through the support plate (25) and slidably connected thereto, and a second spring (24) sleeved on the male connector bracket (23) connecting the male connector valve disc (22) and the support plate (25).

5. A dry disconnector according to claim 2, characterized in that, The spiral groove (16) includes straight segments at both ends and an inclined segment connecting the straight segments at both ends, and the straight segments are arranged along the rotation path of the rotating sleeve (12).

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