A dry-type joint valve

Abstract

This application discloses a dry-type connector valve, relating to the technical field of valves. It includes a valve body with a locking head, a pressure sleeve, a control assembly, and a sealing assembly. The locking head is rotatably connected to the valve body via a pin. The pressure sleeve is fitted onto the valve body and mates with a connecting component, which is connected to a U-shaped lever. The control assembly includes a valve stem, a crankshaft block, and a connecting plate, which can drive the valve disc to open and close. The sealing assembly includes a valve seat and a sealing ring to achieve multiple seals, and also includes a guide component and an adjusting block for auxiliary operation. This application offers advantages such as easy and quick connection and disassembly of the valve body and male connector, reduced labor intensity, improved work efficiency, excellent sealing performance, suitability for high-pressure applications, stable and reliable structure, and extended service life.

Description

Technical Field

[0001] This application relates to the technical field of fluid transport fittings, and in particular to a dry-type fitting valve. Background Technology

[0002] During the loading and unloading of fluid materials, leakage is a common occurrence during the connection of pipelines. When the fluid being transported is a hazardous material, the leaked residue not only pollutes the environment and increases economic costs, but in severe cases, it can even lead to major safety accidents.

[0003] Currently, traditional dry-type valve joints (female) have a relatively simple structural design, which makes the connection operation between the female and male valve joints very cumbersome and inconvenient to disassemble and assemble. Moreover, opening and closing the valve requires a series of complex operations, which not only increases the labor intensity but also greatly reduces work efficiency. In addition, the sealing performance of the valve connection parts and other related parts is not ideal, which can easily lead to leakage problems. Utility Model Content

[0004] In view of the above-mentioned prior art, in order to solve the problems of cumbersome operation and inconvenient disassembly and assembly of dry-type valves and male connectors, high labor intensity and low work efficiency due to complex opening and closing operations, and poor sealing performance of connection parts and related parts that easily lead to leakage, this application provides a dry-type valve.

[0005] This application provides a dry-type joint valve, which adopts the following technical solution: A dry-type valve includes a valve body with multiple mounting holes spaced apart on its outer circumferential side. These mounting holes communicate with the valve body. A locking head is disposed within each mounting hole on the valve body, rotatably connected to the inner wall of the mounting hole. A protrusion is provided on the circumferential side of the valve body below the mounting hole. Multiple first mounting grooves are spaced apart on the side of the protrusion closest to the mounting hole, each first mounting groove corresponding to a locking head. A reset element is provided on each locking head and installed within a first mounting groove. A pressure sleeve is fitted around the valve body, covering the locking heads and the protrusion. A locking block is provided between the locking head and the pressure sleeve, fixedly installed at the end of the locking head away from the protrusion. A groove matching the locking block is formed on the pressure sleeve, with the locking block located within the groove. A flange is provided on the outer circumferential side of the valve body near the bottom. A first flange is provided around the outer periphery. The protrusion and the pressure sleeve are located between the first flange and the flange. The flange is symmetrically arranged with two sliding rods about the valve body axis. The ends of the two sliding rods away from the flange are connected to one side of the protrusion. The side of the pressure sleeve away from the first flange is provided with a connecting member that slides with the two sliding rods. The connecting member includes two vertical plates and two horizontal plates. A groove is opened on one side of the two vertical plates. A second flange matching the groove is provided on one side of the pressure sleeve. The horizontal plate is located between the protrusion and the flange. A sliding hole is opened on the horizontal plate that slides with the sliding rod. One end of the horizontal plate is fixedly connected to the vertical plate. A first spring is also sleeved on the sliding rod. One end of the first spring abuts against the flange, and the end of the first spring away from the flange abuts against the horizontal plate. A U-shaped lever is provided on the outer side of the pressure sleeve. The two ends of the lever are connected to the two vertical plates.

[0006] By adopting the above technical solution, the multiple mounting holes spaced apart allow the lock heads to be evenly distributed around the valve body, ensuring balanced force when connected to the male connector; the lock heads are rotatably connected to the mounting holes, providing a basis for the swing of the lock heads and facilitating locking and unlocking during revolution; the reset component installed in the first mounting groove provides a reset force after the lock heads rotate, ensuring that the lock heads return to their initial state; the pressure sleeve covers the lock heads and protrusions, protecting the internal structure, and through the cooperation of the locking block and the locking groove, the lock heads and pressure sleeve are relatively fixed in the initial state; the flange facilitates the connection of the valve body to other pipes and other structures, and the first flange limits the movement of the pressure sleeve; the sliding rod provides guidance for the sliding of the connecting parts, ensuring the stability of the pressure sleeve movement; the vertical and horizontal plates of the connecting parts cooperate to achieve sliding cooperation between the pressure sleeve and the sliding rod, and the vertical plate cooperates with the second flange of the pressure sleeve through the groove, allowing the pressure sleeve and the connecting parts to move synchronously; the first spring provides auxiliary force when operating the U-shaped lever, making the movement of the pressure sleeve easier; U The lever design allows operators to apply force easily, moving the pressure sleeve and enabling quick connection and disassembly of the valve body and male connector. The overall structure is ingeniously designed, easy to operate, and provides a stable connection.

[0007] Preferably, the valve body is provided with a control component for opening or closing the valve. The control component includes a valve stem, a crankshaft block, and a connecting plate. The valve stem is rotatably mounted in the valve body. A rotating groove is formed in the inner wall of the valve body. One end of the valve stem is inserted into the rotating groove. A rotating hole is formed in the inner wall of the valve body. The rotating hole corresponds to the rotating groove. The end of the valve stem away from the rotating groove extends out of the rotating hole and is located outside the valve body. A rotating handle is provided at the end of the valve stem extending out of the valve body. The rotating handle is located between the protrusion and the flange. The crankshaft block is located in the valve body, and one end of the crankshaft block is connected to the valve stem. The end of the crankshaft block away from the valve stem is hinged to one end of the connecting plate. A connecting rod is hinged to the end of the connecting plate away from the crankshaft block. A valve disc is provided at the end of the connecting rod away from the connecting plate. A sealing component is provided between the valve disc and the inner wall of the valve body.

[0008] By adopting the above technical solution, the valve can be opened and closed by setting up control components to meet the on / off requirements of fluid transportation; the valve stem rotates in the rotating groove and rotating hole to ensure the stability of rotation; the rotating handle is located between the protrusion and the flange for easy operation by the operator; the hinged cooperation of the crankshaft block, connecting plate and connecting rod can convert the rotational motion of the valve stem into the axial movement of the valve disc, thereby realizing the opening and closing of the valve; the sealing component can ensure the sealing of the valve body when the valve disc is closed, prevent fluid leakage, and improve the reliability of the valve.

[0009] Preferably, the sealing assembly includes a valve seat, a wave spring, and a first sealing ring. The valve seat has a raised structure around its circumference. The valve body has a second mounting groove adapted to the raised structure. The wave spring is sleeved on the valve seat. One end of the wave spring abuts against the raised structure, and the end of the wave spring away from the raised structure abuts against the bottom wall of the second mounting groove. The raised structure of the valve seat has a first sealing groove around its circumference. The first sealing ring is located in the first sealing groove. The end of the connecting rod near the valve disc passes through the valve seat. The valve disc is located on the side of the valve seat away from the connecting plate. The side of the valve seat near the valve disc has an abutment groove that matches the outer circumference of the valve disc. A first sealing gasket is provided in the abutment groove.

[0010] By adopting the above technical solution, the protruding structure of the valve seat cooperates with the second mounting groove of the valve body to realize the installation and positioning of the valve seat in the valve body; the wave spring can generate elastic force on the valve seat, so that the valve seat always maintains a tight contact with the valve body, and at the same time provides buffering when the valve disc contacts the valve seat; the first sealing ring is installed in the first sealing groove, which can effectively seal the gap between the valve seat and the valve body and prevent fluid from leaking between the two; the abutment groove matches the outer circumference of the valve disc to ensure that the valve disc can accurately cooperate with the valve seat when closed; the first sealing gasket further enhances the sealing performance between the valve disc and the valve seat, improves the overall sealing performance of the valve, and is suitable for fluid transportation scenarios with high sealing requirements.

[0011] Preferably, a second sealing gasket is provided on the circumferential side of the valve seat away from the valve disc, and the second sealing gasket abuts against the inner wall of the valve body.

[0012] By adopting the above technical solution, a double seal is formed on the basis of the first sealing ring by the second sealing gasket abutting against the inner wall of the valve body, further enhancing the sealing effect between the valve seat and the valve body and significantly reducing the risk of fluid leakage. Even if the first sealing ring wears or ages over long-term use, the second sealing gasket can still provide a certain sealing effect, improving the valve's sealing redundancy and reliability, extending the valve's service life, and making it suitable for conveying high-pressure, corrosive, or easily leaking fluids.

[0013] Preferably, the reset element is a second spring, one end of which is connected to the lock head, and the end of the second spring away from the lock head is located in the first mounting groove.

[0014] By adopting the above technical solution, the second spring, acting as a reset component, possesses excellent elastic properties and can provide a stable reset force after the lock head rotates. When the lock head is pushed to rotate during the insertion of the male connector, the second spring is compressed, storing elastic potential energy. When unlocking is required, as the pressure force of the sleeve on the lock head disappears, the second spring releases its elastic potential energy, pushing the lock head to rotate in the opposite direction and return to its initial position, thus releasing the revolution lock. The second spring has a simple structure, low cost, and a stable and reliable reset effect, ensuring the reusability of the lock head.

[0015] Preferably, the valve body is provided with a guide member for the valve disc to move along the axial direction of the valve body. The guide member is a guide rod. The valve disc has a central hole. The connecting rod has a central groove communicating with the central hole. A third spring is provided in the central groove. One end of the third spring abuts against the bottom wall of the central groove. One end of the guide rod passes through the central hole and is located in the central groove. The end of the third spring away from the bottom wall of the central groove is connected to the guide rod.

[0016] By adopting the above technical solution, the guide rod can provide precise guidance for the axial movement of the valve disc, prevent the valve disc from shifting or tilting during the opening and closing process, ensure that the valve disc can accurately match the abutment groove of the valve seat, and guarantee the sealing effect.

[0017] Preferably, an adjusting block is provided below the rotating handle, the adjusting block is fixedly connected to the rotating handle, the adjusting block is semi-circular, and one side of the adjusting block is flat; when the valve is opened, the adjusting block rotates with the rotating handle, and the side of the adjusting block located on the arc shape abuts against the side of the pressure sleeve near the flange; when the valve is closed, the side of the adjusting block located on the flat side faces the side of the pressure sleeve near the second flange, and the adjusting block does not abut against the pressure sleeve.

[0018] By adopting the above technical solution, the adjusting block changes position as the handle rotates, achieving selective constraint on the pressure sleeve. When the valve is open, the arc-shaped side of the adjusting block abuts against the pressure sleeve, restricting the pressure sleeve from sliding towards the flange and ensuring that the pressure sleeve remains stably in contact with the first flange. This ensures that the locking state of the locking head during revolution will not loosen due to vibration or pressure fluctuations during fluid transport, improving the reliability of the connection. When the valve is closed, the flat side of the adjusting block faces the pressure sleeve, and there is no contact between the two. The pressure sleeve can slide freely, facilitating the unlocking and separation of the valve body and the male connector. This ensures convenient disassembly and assembly when the valve is closed, making the operation more flexible and efficient.

[0019] Preferably, the valve stem has a second sealing groove circumferentially formed on the side wall of the rotating hole, and a second sealing ring is provided in the second sealing groove.

[0020] By adopting the above technical solution, the second sealing ring is installed in the second sealing groove, which can fit tightly against the inner wall of the rotating hole during valve stem rotation, effectively sealing the gap between the valve stem and the rotating hole, preventing fluid leakage from the gap, and ensuring the sealing performance of the valve body. Whether the valve stem is rotating or stationary, the second sealing ring can provide a good sealing effect, improving the overall sealing performance of the valve and ensuring the safety and reliability of fluid transportation.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. Multiple mounting holes spaced apart allow the lock heads to be evenly distributed around the valve body, ensuring balanced force when connected to the male connector; the lock heads rotate with the mounting holes, providing a basis for their swing and facilitating locking and unlocking during revolution; a reset element installed in the first mounting groove provides a reset force after the lock heads rotate, ensuring they return to their initial state; the pressure sleeve covers the lock heads and protrusions, protecting the internal structure, and through the cooperation of the locking block and slot, relatively fixing the lock heads and pressure sleeve in the initial state; the flange facilitates connection of the valve body to other pipes and structures, and the first flange limits the movement of the pressure sleeve; the sliding rod guides the sliding of the connector, ensuring the stability of the pressure sleeve's movement; the vertical and horizontal plates of the connector cooperate to achieve sliding cooperation between the pressure sleeve and the sliding rod, and the vertical plate cooperates with the second flange of the pressure sleeve through a groove, allowing the pressure sleeve and connector to move synchronously; the first spring can provide operation U The U-shaped lever provides auxiliary force, making it easier to move the pressure sleeve; the U-shaped lever makes it easy for the operator to apply force and easily drive the pressure sleeve to move, thereby realizing the quick connection and disassembly of the valve body and the male. The overall structure is ingeniously designed, easy to operate, and has a stable connection. 2. The raised structure of the valve seat mates with the second mounting groove of the valve body to achieve the installation and positioning of the valve seat within the valve body; the wave spring generates elastic force on the valve seat, ensuring that the valve seat always maintains tight contact with the valve body, while providing cushioning when the valve disc contacts the valve seat; the first sealing ring is installed in the first sealing groove, effectively sealing the gap between the valve seat and the valve body to prevent fluid leakage between them; the abutment groove matches the outer circumference of the valve disc, ensuring that the valve disc can accurately mate with the valve seat when closed; the first sealing gasket further enhances the sealing performance between the valve disc and the valve seat, improving the overall sealing performance of the valve, and is suitable for fluid transportation scenarios with high sealing requirements; 3. The adjusting block changes position as the handle rotates, achieving selective constraint on the pressure sleeve. When the valve is open, the arc-shaped side of the adjusting block abuts against the pressure sleeve, restricting the pressure sleeve from sliding towards the flange. This ensures the pressure sleeve remains stably abutting against the first flange, thus guaranteeing that the locking state of the locking head during revolution will not loosen due to vibration or pressure fluctuations during fluid transport, improving connection reliability. When the valve is closed, the flat side of the adjusting block faces the pressure sleeve, and there is no contact between them. The pressure sleeve can slide freely, facilitating the unlocking and separation of the valve body and the male connector. This ensures convenient disassembly and assembly when the valve is closed, making operation more flexible and efficient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 yes Figure 2 Cross-sectional view at point AA; Figure 4 This is a top view of the present invention; Figure 5 yes Figure 4 Cross-sectional view at point BB.

[0023] Reference numerals: 1. Valve body; 11. First flange; 12. Flange; 2. Lock head; 21. Locking block; 3. Pressure sleeve; 31. Locking groove; 32. Second flange; 4. Mounting hole; 5. Protrusion; 6. Reset component; 61. Second spring; 7. First mounting groove; 8. Connecting component; 81. Vertical plate; 811. Groove; 82. Horizontal plate; 821. Sliding hole; 9. Sliding rod; 91. First spring; 10. Lever; 13. Control component; 131. Valve stem; 1311. Rotating handle; 1312. Second sealing groove; 1313. Second sealing ring ; 132, Crankshaft block; 133, Connecting plate; 14, Rotating groove; 15, Rotating hole; 16, Connecting rod; 161, Center groove; 17, Valve disc; 171, Center hole; 18, Sealing assembly; 181, Valve seat; 1811, Protruding structure; 1812, First sealing groove; 1813, Abutment groove; 1814, First sealing gasket; 1815, Second sealing gasket; 182, Wave spring; 183, First sealing ring; 19, Second mounting groove; 20, Guide component; 201, Guide rod; 22, Third spring; 23, Adjusting block. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail.

[0025] This application discloses a dry-type connector valve.

[0026] Reference Figure 1 and Figure 2 A dry-type valve includes a valve body 1, a locking head 2, and a pressure sleeve 3. Multiple mounting holes 4 are provided around the outer circumference of the valve body 1, spaced apart. The locking head 2 is located within each mounting hole 4 and is rotatably connected to the mounting hole 4 via a pin. A protrusion 5 is also provided around the circumference of the valve body 1, located below the mounting holes 4. A reset element 6 is provided at the end of the locking head 2 near the protrusion 5. Multiple first mounting grooves 7 are provided on the protrusion 5, and the reset element 6 is located within each of the first mounting grooves 7. (Refer to...) Figure 3 The pressure sleeve 3 is fitted onto the outer periphery of the valve body 1 and slides in cooperation with the valve body 1. The pressure sleeve 3 is fitted with a locking head 2 and a protrusion 5. A locking block 21 is provided between the locking head 2 and the pressure sleeve 3. A groove 31 matching the locking block 21 is provided on one side of the pressure sleeve 3. In the initial state, the locking block 21 is located in the groove 31. A connector 8 is provided on the side of the pressure sleeve 3 away from the groove 31. A first flange 11 is provided around the circumference of the end of the valve body 1 near the locking head 2. A flange 12 is provided on the end of the valve body 1 away from the first flange 11. Two sliding rods 9 are symmetrically arranged on the flange 12 with the valve body 1 axis as the center. The ends of the two sliding rods 9 away from the flange 12 are fixedly connected to the side of the protrusion 5 away from the mounting groove. A groove is formed between the protrusion 5 and the flange 12, and the sliding rods 9 are located in the groove.

[0027] Reference Figure 3 Specifically, the connector 8 includes two vertical plates 81 and two horizontal plates 82. The inner wall of the end of the pressure sleeve 3 away from the slot 31 abuts against the protrusion 5. The outer wall of the pressure sleeve 3 near the protrusion 5 is provided with a second flange 32 around its circumference. The vertical plate 81 has a groove 811, and the vertical plate 81 is fitted onto the second flange 32 through the groove 811. The horizontal plate 82 is located between the protrusion 5 and the flange 12. The horizontal plate 82 has a sliding hole 821 for sliding and sliding cooperation. One end of the horizontal plate 82 is fixedly connected to the vertical plate 81. The slide rod 9 is also fitted with a first spring 91. One end of the first spring 91 abuts against the flange 12, and the end of the first spring 91 away from the flange 12 abuts against the horizontal plate 82. The outer side of the pressure sleeve 3 is also provided with a U-shaped lever 10, and the two ends of the U-shaped lever 10 are fixedly connected to the two vertical plates 81.

[0028] Furthermore, the reset component 6 is a second spring 61, one end of which is fixedly connected to one end of the lock head 2, and the end of the second spring 61 away from the lock head 2 is installed in the mounting groove.

[0029] When the valve body 1 is connected to the male connector, the male connector is inserted from the end of the valve body 1 with the first flange 11. Its outer wall will contact the end of the lock head 2 located inside the valve body 1 and push the lock head 2 to rotate around the pin. After the male connector is inserted, the pressure sleeve 3 is moved away from the flange 12 by operating the U-shaped lever 10. The elastic force of the first spring 91 will assist in pushing the horizontal plate 82, the vertical plate 81 and the pressure sleeve 3 to move synchronously until the pressure sleeve 3 abuts against the first flange 11. At this time, the locking block 21 on the lock head 2 moves away from the slot 31 with the pressure sleeve 3 and abuts against the side wall of the pressure sleeve 3. Under the action of the abutment force of the inner side wall of the pressure sleeve 3, one end of the locking tongue (lock head 2) rotates around the pin and protrudes into the valve body 1. At this time, the second spring 61 is compressed and finally achieves connection and locking with the male connector.

[0030] When the valve body 1 is disassembled from the male connector, the U-shaped lever 10 is operated to move the pressure sleeve 3 towards the side closer to the flange 12. At this time, the horizontal plate 82 compresses the first spring 91, and the pressure sleeve 3 gradually disengages from the contact state with the first flange 11. As the pressure sleeve 3 moves, the contact force between its inner wall and the locking head 2 gradually disappears, and the compressed second spring 61 releases its elastic force, pushing the locking head 2 to rotate in the opposite direction around the pin. The end of the locking head 2 located inside the valve body 1 retracts outward, releasing the lock on the male connector. At the same time, the locking block 21 on the locking head 2 re-engages into the slot 31 of the pressure sleeve 3 as the locking head 2 rotates, achieving relative fixation between the pressure sleeve 3 and the locking head 2. Finally, the male connector is pulled out from the end of the valve body 1 with the first flange 11, completing the disassembly.

[0031] Specifically, the valve body 1 is provided with a control component 13 for opening or closing the valve. The control component 13 includes a valve stem 131, a crankshaft block 132, and a connecting plate 133. The valve stem 131 is located inside the valve body 1. A rotating groove 14 is provided on the side wall inside the valve body 1. One end of the valve stem 131 is inserted into the rotating groove 14. A rotating hole 15 is provided through the inner side wall of the valve body 1 opposite to the rotating groove 14. The end of the valve stem 131 away from the rotating groove 14 is provided through the rotating hole 15. A second sealing groove 1312 is provided around the side wall of the valve stem 131 located in the rotating hole 15. A second sealing ring 1313 is provided in the second sealing groove 1312. A rotating handle 1311 is provided at the end of the valve stem 131 that extends out of the rotating hole 15. The rotating handle 1311 is located in the groove between the protrusion 5 and the flange 12. The crankshaft block 132 is located inside the valve body 1. One end of the crankshaft block 132 is fixedly connected to the valve stem 131. The end of the crankshaft block 132 away from the valve stem 131 is set towards the flange 12 and is hinged to the connecting plate 133. The end of the connecting plate 133 away from the crankshaft block 132 is set towards the valve body 1 away from the flange 12 and is hinged to the connecting rod 16. The valve disc 17 is set on the side of the connecting rod 16 away from the connecting plate 133.

[0032] Furthermore, a sealing assembly 18 is provided inside the valve body 1 on one side of the valve disc 17. The sealing assembly 18 includes a valve seat 181, a wave spring 182, and a first sealing ring 183. A protrusion 5 structure is provided around the circumference of the valve seat 181. A second mounting groove 19 matching the protrusion 5 structure is provided inside the valve body 1. The wave spring 182 is located between the protrusion 5 structure and the second mounting groove 19. The wave spring 182 is sleeved on the valve seat 181, with one end of the wave spring 182 abutting against the protrusion 5 structure and the other end of the wave spring 182 abutting against the bottom wall of the second mounting groove 19. A first sealing groove 1812 is provided around the circumference of the protrusion 5 structure, and the first sealing ring 183 is installed in the first sealing groove 1812. An abutment groove 1813 matching the outer circumference of the valve disc 17 is provided on the side of the valve seat 181 near the valve disc 17, and a first sealing gasket 1814 is fixedly installed in the abutment groove 1813.

[0033] A second sealing gasket 1815 is provided around the circumference of the valve seat 181, and the second sealing gasket 1815 is located on the side of the protrusion 5 structure away from the wave spring 182. The first sealing ring 183 forms a basic seal for the gap between the valve seat 181 and the valve body 1, and the second sealing gasket 1815 forms a supplementary seal from the side of the protrusion 5 structure away from the wave spring 182. The double sealing structure significantly reduces the risk of fluid leakage between the valve seat 181 and the inner wall of the valve body 1, and improves the redundancy and reliability of the seal for high-pressure or easily leaky fluid transportation scenarios.

[0034] When the valve needs to be opened, the handle 1311 is operated to rotate it around the axis of the valve stem 131. The valve stem 131 rotates synchronously within the rotating groove 14 and the rotating hole 15. At this time, the second sealing ring 1313 is tightly fitted with the inner wall of the rotating hole 15 within the second sealing groove 1312, ensuring the sealing of the valve body 1 during the rotation of the valve stem 131. The rotation of the valve stem 131 drives the fixedly connected crankshaft block 132 to rotate together. The end of the crankshaft block 132 away from the valve stem 131 pushes the connecting plate 133 towards the side of the valve body 1 away from the flange 12 through the hinge point, causing the connecting plate 133 to swing around the hinge point. The swing of the connecting plate 133 further drives the connecting rod 16, which is hinged to it, to move axially along the valve body 1. The valve disc 17 gradually moves away from the valve seat 181, releasing the blockage of the internal passage of the valve body 1, allowing fluid to flow through the valve body 1 and completing the valve opening operation.

[0035] Reference Figure 4 and Figure 5Specifically, the valve body 1 is provided with a guide member 20 for the valve disc 17 to move along the axial direction of the valve body 1. The guide member 20 is a guide rod 201. The valve disc 17 has a central hole 171. The connecting rod 16 has a central groove 161 that communicates with the central hole 171 of the valve disc 17. A third spring 22 is provided in the central groove 161. One end of the third spring 22 abuts against the bottom wall of the central groove 161. One end of the guide rod 201 passes through the central hole 171 and is located in the central groove 161. The end of the third spring 22 away from the bottom wall of the central groove 161 is fixedly connected to the guide rod 201. When the male connector is connected to the valve body 1, the internal part of the male connector pushes against the guide rod 201, causing the guide rod 201 to move away from the valve disc 17 along the central hole 171 and the central groove 161. Simultaneously, the third spring 22 is compressed. The guide rod 201 provides precise guidance for the movement of the valve disc 17, preventing the valve disc 17 from shifting or tilting during opening and closing, ensuring that the valve disc 17 accurately engages with the abutment groove 1813 of the valve seat 181, guaranteeing a sealing effect. When the valve is closed, the third spring 22 releases its elastic potential energy, pushing the guide rod 201 back to its original position, thereby causing the valve disc 17 to tightly adhere to the valve seat 181, increasing the sealing pressure between the valve disc 17 and the valve seat 181, further improving the sealing performance. Furthermore, the elastic force of the third spring 22 buffers the impact of fluid pressure fluctuations on the valve disc 17, reducing wear between the valve disc 17 and the valve seat 181, and extending the valve's service life.

[0036] An adjusting block 23 is provided below the rotating handle 1311, and the adjusting block 23 is fixedly connected to the bottom of the rotating handle 1311. The adjusting block 23 is semi-circular, with one side being a flat surface and the other side being an arc surface. When the valve is closed, the adjusting block 23 rotates with the rotating handle 1311 until the flat side faces the pressure sleeve 3 and is close to the first flange 11. At this time, there is no contact between the adjusting block 23 and the pressure sleeve 3. In this state, the pressure sleeve 3 is not constrained by the external force of the adjusting block 23 and can slide freely under the elastic action of the first spring 91 or the operation of external force (such as U-shaped lever 10), which facilitates the unlocking and separation operation of the valve body 1 and the male head. The reset action of the pressure sleeve 3 will not be affected by the obstruction of the adjusting block 23, ensuring the convenience of disassembly and assembly when the valve is closed. When the valve is opened, the adjusting block 23 rotates with the rotating handle 1311, with its arc-shaped side facing and abutting against the side of the pressure sleeve 3 near the first flange 11, restricting the pressure sleeve 3 from sliding towards the flange 12. This constraint ensures that the pressure sleeve 3 remains stably in contact with the first flange 11, thereby ensuring that the locking block 21 on the locking head 2 continuously abuts against the side wall of the pressure sleeve 3, guaranteeing that the locking state of the locking head 2 will not loosen due to vibration or pressure fluctuations during fluid transport, thus improving the reliability of the connection.

[0037] The implementation principle of this application embodiment is as follows: through the coordinated operation of valve body 1, lock head 2, pressure sleeve 3, control component 13 and sealing component 18, the complete function of the dry joint valve is realized: during connection, the male head is inserted and pushes the lock head 2 to rotate, and the U-shaped lever 10 is operated to move the pressure sleeve 3 to abut against the first flange 11. Under the action of the pressure sleeve 3, the lock head 2 protrudes into the valve body 1 and locks against the male head. The second spring 61 is compressed, and the first spring 91 assists in the movement; during disassembly, the U-shaped lever 10 is operated in the reverse direction. The lever 10 resets the pressure sleeve 3, eliminating the resistance of the pressure sleeve 3 to the lock head 2. The second spring 61 pushes the lock head 2 back to its original position to release the lock. The locking block 21 re-engages into the slot 31, facilitating the removal of the male connector. When the valve is opened, the handle 1311 rotates, causing the valve stem 131 and crankshaft block 132 to rotate. This rotation, via the connecting plate 133 and connecting rod 16, pushes the valve disc 17 away from the valve seat 181. The guide rod 201 ensures precise movement of the valve disc 17. The double sealing of the sealing assembly 18 and the third spring 22 enhance the sealing effect. At the same time, the arc-shaped side of the adjusting block 23 abuts against the pressure sleeve 3, restricting its sliding and ensuring stable locking of the lock head 2. When the valve is closed, the reverse operation resets the valve disc 17 to block the passage. The plane side of the adjusting block 23 faces the pressure sleeve 3 without constraint, allowing the pressure sleeve 3 to slide freely for male connector installation and removal. Through mechanical linkage, elastic reset, and state constraint, the system achieves reliable connection with the male connector, convenient disassembly, and stable sealing during valve opening and closing, meeting the requirements of dry connectors in fluid transportation scenarios.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dry-type connector valve, characterized in that, The system includes a valve body (1), with multiple mounting holes (4) spaced around its outer circumference. These mounting holes (4) communicate with the interior of the valve body (1). A lock head (2) is located within the mounting hole (4) of the valve body (1), and the lock head (2) is rotatably connected to the inner wall of the mounting hole (4). A protrusion (5) is located around the circumference of the valve body (1), below the mounting hole (4). Multiple first mounting grooves (7) are spaced around the side of the protrusion (5) closest to the mounting hole (4), and each of the first mounting grooves (7) corresponds to one of the lock heads (2). A reset component (6) is provided on each lock head (2). The mounting element (6) is installed in the first mounting groove (7); a pressure sleeve (3) is fitted around the valve body (1), the pressure sleeve (3) covers the lock head (2) and the protrusion (5), a locking block (21) is provided between the lock head (2) and the pressure sleeve (3), the locking block (21) is fixedly installed at the end of the lock head (2) away from the protrusion (5), the pressure sleeve (3) has a groove (31) that matches the locking block (21), the locking block (21) is located in the groove (31); a flange (12) is provided on the outer periphery of the valve body (1) near the bottom, and a first flange (11) is provided around the outer periphery of the valve body (1) away from the flange (12). The protrusion (5) and the pressure sleeve (3) are located between the first flange (11) and the flange (12). The flange (12) has two sliding rods (9) symmetrically arranged around the axis of the valve body (1). The ends of the two sliding rods (9) away from the flange (12) are connected to one side of the protrusion (5). The side of the pressure sleeve (3) away from the first flange (11) is provided with a connecting piece (8) that slides with the two sliding rods (9). The connecting piece (8) includes a vertical plate (81) and a horizontal plate (82). There are two vertical plates (81) and two horizontal plates (82). A groove (811) is opened on one side of the two vertical plates (81). The pressure sleeve (3) has one... A second flange (32) matching the groove (811) is provided on the side. The horizontal plate (82) is located between the protrusion (5) and the flange (12). The horizontal plate (82) is provided with a sliding hole (821) that slides with the slide rod (9). One end of the horizontal plate (82) is fixedly connected to the vertical plate. A first spring (91) is also sleeved on the slide rod (9). One end of the first spring (91) abuts against the flange (12), and the end of the first spring (91) away from the flange (12) abuts against the horizontal plate (82). A U-shaped lever (10) is provided on the outside of the pressure sleeve (3). The two ends of the lever (10) are connected to the two vertical plates (81).

2. A dry-type joint valve according to claim 1, characterized in that, The valve body (1) is provided with a control assembly (13) for opening or closing the valve. The control assembly (13) includes a valve stem (131), a crankshaft block (132), and a connecting plate (133). The valve stem (131) is rotatably mounted inside the valve body (1). A rotating groove (14) is provided on the inner side wall of the valve body (1). One end of the valve stem (131) is inserted into the rotating groove (14). A rotating hole (15) is provided on the inner side wall of the valve body (1). The rotating hole (15) corresponds to the rotating groove (14). The end of the valve stem (131) away from the rotating groove (14) extends out of the rotating hole (15) and is located outside the valve body (1). A rotating handle (1311) is provided at one end of the valve body (1). The rotating handle (1311) is located between the protrusion (5) and the flange (12). The crankshaft block (132) is located inside the valve body (1), and one end of the crankshaft block (132) is connected to the valve stem (131). The end of the crankshaft block (132) away from the valve stem (131) is hinged to one end of the connecting plate (133). A connecting rod (16) is hinged to the end of the connecting plate (133) away from the crankshaft block (132). A valve disc (17) is provided at the end of the connecting rod (16) away from the connecting plate (133). A sealing assembly (18) is provided between the valve disc (17) and the inner wall of the valve body (1).

3. A dry-type joint valve according to claim 2, characterized in that, The sealing assembly (18) includes a valve seat (181), a wave spring (182), and a first sealing ring (183). The valve seat (181) has a protrusion (5) structure on its circumferential side. The valve body (1) has a second mounting groove (19) inside that matches the protrusion (5) structure. The wave spring (182) is sleeved on the valve seat (181). One end of the wave spring (182) abuts against the protrusion (5) structure, and the end of the wave spring (182) away from the protrusion (5) structure abuts against the bottom wall of the second mounting groove (19). The valve seat (181) has a first sealing ring (183). 1) The protrusion (5) structure is provided with a first sealing groove (1812) around the circumference. The first sealing ring (183) is located in the first sealing groove (1812). The end of the connecting rod (16) near the valve disc (17) passes through the valve seat (181). The valve disc (17) is located on the side of the valve seat (181) away from the connecting plate (133). The side of the valve seat (181) near the valve disc (17) is provided with an abutment groove (1813) that matches the outer circumference of the valve disc (17). The abutment groove (1813) is provided with a first sealing gasket (1814).

4. A dry-type joint valve according to claim 3, characterized in that, A second sealing gasket (1815) is provided on the circumferential side of the valve seat (181) away from the valve disc (17), and the second sealing gasket (1815) abuts against the inner wall of the valve body (1).

5. A dry-type joint valve according to claim 1, characterized in that, The reset component (6) is a second spring (61), one end of which is connected to the lock head (2), and the end of the second spring (61) away from the lock head (2) is located in the first mounting groove (7).

6. A dry-type joint valve according to claim 1, characterized in that, The valve body (1) is provided with a guide (20) for the valve disc (17) to move along the axial direction of the valve body (1). The guide (20) is a guide rod (201). The valve disc (17) is provided with a central hole (171). The connecting rod (16) is provided with a central groove (161) communicating with the central hole. A third spring (22) is provided in the central groove (161). One end of the third spring (22) abuts against the bottom wall of the central groove (161). One end of the guide rod (201) passes through the central hole (171) and is located in the central groove (161). The end of the third spring (22) away from the bottom wall of the central groove (161) is connected to the guide rod (201).

7. A dry-type joint valve according to claim 1, characterized in that, An adjusting block (23) is provided below the rotating handle (1311). The adjusting block (23) is fixedly connected to the rotating handle (1311). The adjusting block (23) is semi-circular, and one side of the adjusting block (23) is flat. When the valve is opened, the adjusting block (23) rotates with the rotating handle (1311). The adjusting block (23) is located on the arc side and abuts against the side of the pressure sleeve (3) near the flange. When the valve is closed, the side of the adjusting block (23) on the flat side faces the side of the pressure sleeve (3) near the second flange (32), and the adjusting block does not abut against the pressure sleeve (3).

8. A dry-type joint valve according to claim 2, characterized in that, The valve stem (131) has a second sealing groove (1312) circumferentially opened on the side wall of the rotating hole (15), and a second sealing ring (1313) is provided in the second sealing groove (1312).

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