Interlocking valve

Abstract

The invention discloses an interlocking valve which comprises a valve body assembly. The handle mechanism is connected with the valve body assembly and is suitable for rotating to a closing position for closing the valve or an opening position for opening the valve; the pin shaft is arranged on the valve body assembly and can move to a locking state for limiting rotation of the handle mechanism or an unlocking state for releasing limitation; the first elastic piece is connected between the pin shaft and the valve body assembly; the limiting mechanism is fixed on the handle mechanism; the first ball is mounted on the valve body assembly and located between the pin shaft and the limiting mechanism; only when the handle mechanism is located at the closing position, the limiting mechanism and the first ball can loosen the pin shaft, and the pin shaft can retract into the valve body assemblies so as to allow the two valve body assemblies to be in butt joint or separated. After the two valve body assemblies are in butt joint in place, the pin shafts extend out to be inserted into the opposite valve body assemblies under the action of the first elastic pieces and are in an unlocking state. The valve is convenient for field butt joint and movable installation, and is reliable to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to a valve, and more particularly to an interlocking valve. Background Technology

[0002] Valves are typically connected between two disconnected pipelines. For example, Chinese invention patent CN202411297669.1 discloses a corrosion-resistant and erosion-resistant ball valve, which includes a valve body, a ball installed inside the valve body, a handle connected to the ball, and adapters located on both sides of the valve body. However, this type of ball valve is only suitable for situations where the pipelines at both ends are relatively fixed, and requires a large installation space. It also cannot meet the needs of on-site docking and mobile installation. Especially in server applications, all components inside the server are usually pre-assembled in the factory. In the equipment room, all the connections only need to be connected. If an on-site installed piping system is used, it is easy to cause installation failure and introduce foreign objects into the pipeline.

[0003] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Summary of the Invention

[0004] The purpose of this invention is to provide an interlocking valve that facilitates on-site connection and relocation installation, and offers excellent reliability in valve assembly and disassembly.

[0005] The objective of this invention is achieved through the following technical solution: an interlocking valve, comprising:

[0006] Valve body assembly;

[0007] A handle mechanism is connected to the valve body assembly and is adapted to rotate to the closed position of closing the valve or the open position of opening the valve;

[0008] A pin is provided on the valve body assembly and is movable to a locked state that restricts the rotation of the handle mechanism or an unlocked state that releases the restriction.

[0009] A first elastic element is connected between the pin and the valve body assembly;

[0010] A limiting mechanism is fixed to the handle mechanism;

[0011] The first ball bearing is installed in the valve body assembly and is located between the pin and the limiting mechanism;

[0012] Specifically, when the handle mechanism is in the closed position, the limiting mechanism and the first ball can release the pin, and the pin can retract into the valve body assembly to allow the two valve body assemblies to dock or separate; and when the two valve body assemblies are docked, the pin extends out and inserts into the opposing valve body assembly under the action of the first elastic element, and is in the unlocked state.

[0013] Furthermore, when the valve body assembly is not docked and the handle mechanism is in the closed position, the pin extends out of the valve body assembly under the push of the first elastic element and is in a locked state, and the pin can retract into the valve body assembly under external docking force and be in a locked state.

[0014] Furthermore, when the handle mechanism is in the non-closed position, the limiting mechanism and the first ball are adapted to restrict the pin, so that the pin remains in the unlocked state.

[0015] Furthermore, the outer edge of the pin is recessed inward to form a first recess, and the limiting mechanism is recessed inward from its outer edge to form a second recess. When the pin is in the locked state, the first ball is located outside the first recess and between the second recess, and the handle mechanism is in a rotation-restricted state. When the pin is in the unlocked state, the first ball can move freely between the first recess and the second recess to release the rotation restriction on the handle mechanism.

[0016] Furthermore, the limiting mechanism is a sleeve structure fitted onto the handle mechanism, the outer edge of the limiting mechanism is circular, and the second recessed portion is formed by recessing inward from part of the outer edge of the limiting mechanism.

[0017] Furthermore, the valve body assembly has a first end for docking, and the end face of the first end is provided with a snap-fit ​​structure and a recess. The pin can extend or retract along the axial direction of the valve body assembly at the first end. When the first ends of the two valve body assemblies are snap-fitted together, the pin is inserted into the opposite recess and is in an unlocked state.

[0018] Furthermore, a second mounting hole is recessed within the end face of the first end, and the pin includes:

[0019] The rod body is movably inserted into the second mounting hole;

[0020] The head is located at one end of the rod, and the first recessed portion is formed by recessing inward from the outer edge of the rod.

[0021] The head includes a head plane and an embedded end protruding from the head plane. The embedded end has an arc-shaped structure. When the two valve body assemblies are docked, the head plane abuts against the end face of the first end of the valve body assembly facing each other, and the embedded end is inserted into the concave hole facing each other.

[0022] Furthermore, the first recess is an annular groove surrounding the outer edge of the rod.

[0023] Furthermore, the outer diameter of the head is larger than the outer diameter of the rod body, and a limit bolt is threaded to the other end of the rod body. The outer diameter of the cap of the limit bolt is larger than the outer diameter of the rod body. The second mounting hole includes a first section for receiving the rod body, a second section for receiving the head, and a third section for receiving the cap. A first stepped surface is formed between the first section and the second section, and a second stepped surface is formed between the first section and the third section. The first elastic element is sleeved outside the pin, and its two ends abut against the head and the first stepped surface.

[0024] Furthermore, the valve body assembly includes:

[0025] A valve body has a first end and a second end in the axial direction of the valve body assembly, and a valve cavity is formed in the valve body, the valve cavity extending through the end faces of the first end and the second end along the axial direction of the valve body assembly.

[0026] The valve core is movably installed in the valve cavity and connected to the handle mechanism. When the handle mechanism is in the closed position, the valve core blocks the first end and the second end. When the handle mechanism is in the open position, the valve core connects the first end and the second end.

[0027] The valve body has a first mounting hole, a second mounting hole, and a third mounting hole. The first mounting hole connects the inside and outside of the valve body. The handle mechanism passes through the first mounting hole and can rotate around the axis of the first mounting hole. The second mounting hole extends inward from the end face of the first end. The pin passes through the second mounting hole and can move along the axial direction of the second mounting hole. The third mounting hole extends from the side wall of the first mounting hole to the side wall of the second mounting hole. The first ball is mounted in the third mounting hole and can move along the axial direction of the third mounting hole. The first mounting hole and the second mounting hole are perpendicular to each other, and the axial direction of the second mounting hole is parallel to the axial direction of the valve body.

[0028] Compared with the prior art, the present invention has the following beneficial effects: By adopting the above-mentioned valve structure, a single valve can be connected to different pipelines, and then the valve body assemblies of two valves are connected to achieve the connection and conduction of two pipelines. This structure is very convenient for on-site connection, solving the problem that existing products cannot be moved and installed. Moreover, the pipeline system can be pre-assembled in the factory without on-site installation, avoiding installation failure and the problem of foreign objects entering the pipeline. In addition, by setting an interlocking mechanism, when a single valve is not connected to other valves, the interlocking mechanism is suitable for driving the handle mechanism to lock in the closed position. After the two valves are connected, the interlocking mechanism switches from the locked state to the unlocked state to release the lock on the handle mechanism, so that the unconnected single valve cannot rotate the handle mechanism, which can effectively avoid fluid leakage in the pipeline during the connection process. When the two valves are separated, the interlocking mechanism resets from the unlocked state to the locked state, thereby locking the handle mechanism again, improving the reliability of the installation process and ensuring the safe switching of the pipeline. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the interlocking valve of the present invention.

[0030] Figure 2 This is a schematic diagram of the valve structure in this invention.

[0031] Figure 3 This is a schematic diagram showing the state in which the valve's interlocking mechanism is locked and the handle mechanism is closed in the present invention.

[0032] Figure 4 This is a schematic diagram showing the state in which the valve's interlocking mechanism is in the unlocked state and the handle mechanism is in the open position in this invention.

[0033] Figure 5 This is a cross-sectional schematic diagram of the interlocking valve of the present invention.

[0034] Figure 6 This is a cross-sectional schematic diagram of the interlocking valve of the present invention in another direction.

[0035] Figure 7 yes Figure 6 A magnified view of a portion at point A.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Interlocking mechanism; 110. Pin; 111. First recess; 112. Rod; 113. Head; 1131. Head plane; 1132. Insertion end; 120. First elastic element; 130. Limiting mechanism; 131. Second recess; 140. First ball; 150. Limiting bolt; 151. Cap; 200. Valve body assembly; 210. Valve body; 211. Valve cavity; 212. First end; 213. Second end; 214. First mounting hole; 215. Second mounting hole; 2151. First section; 215 2. Second section; 2153. Third section; 216. Third mounting hole; 217. Turn-lock structure; 218. Recessed hole; 2191. Third recessed part; 2192. Protrusion; 2193. Contact surface; 220. Valve core; 300. Handle mechanism; 310. Connector; 320. Handle part; 321. Fourth mounting hole; 322. Fifth mounting hole; 330. Locking bolt; 340. Seal; 400. Locking mechanism; 410. Pressing part; 411. Fourth recessed part; 420. Second elastic element; 430. Second ball. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0039] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] Please see Figures 1 to 4As shown, the interlocking valve corresponding to a preferred embodiment of the present invention includes: a valve body assembly 200; a handle mechanism 300 connected to the valve body assembly 200 and adapted to rotate to a closed position to close the valve or an open position to open the valve; and an interlocking mechanism 100, which is linked between the valve body assembly 200 and the handle mechanism 300 and has a locked state and an unlocked state. When the interlocking mechanism 100 is in the locked state, it is adapted to drive the handle mechanism 300 to lock in the closed position. When the interlocking mechanism 100 is in the unlocked state, it is adapted to release the lock on the handle mechanism 300. The valve body assemblies 200 of the two valves are adapted to be connected to each other so that the interlocking mechanism 100 switches from the locked state to the unlocked state. The two valve body assemblies 200 can only be separated from each other when the interlocking mechanism 100 resets from the unlocked state to the locked state.

[0042] This invention, by employing the aforementioned valve structure, allows individual valves to be connected to different pipelines. The connection between two pipelines is achieved by docking the valve body assemblies 200 of two valves. This structure facilitates on-site docking, solving the problem of existing products being unable to be moved for installation. Furthermore, the pipeline system can be pre-assembled in the factory, eliminating the need for on-site installation and preventing installation failures and the entry of foreign objects into the pipeline. In addition, by setting an interlocking mechanism 100, when a single valve is not docked with other valves, the interlocking mechanism 100 is adapted to lock the handle mechanism 300 in the closed position. After two valves are docked, the interlocking mechanism 100 switches from the locked state to the unlocked state to release the lock on the handle mechanism 300, preventing the un-docked single valve from rotating the handle mechanism 300. This effectively prevents fluid leakage in the pipeline during docking. When the two valves separate, the interlocking mechanism 100 resets from the unlocked state to the locked state, thereby re-locking the handle mechanism 300, improving the reliability of the installation process and ensuring the safe switching of the pipeline.

[0043] Furthermore, the two valve body assemblies 200 are adapted to be engaged or disengaged only when the handle mechanism 300 is in the closed position, so that the valve body assembly 200 in the open state cannot be engaged or disengaged with other valve body assemblies 200, thereby further improving the reliability during installation.

[0044] Specifically, the interlocking mechanism 100 includes a pin 110, a first elastic element 120, a limiting mechanism 130, and a first ball bearing 140. The pin 110 is a single piece and is movably disposed on the valve body assembly 200, and can move to a locked state or an unlocked state. The outer edge of the pin 110 is recessed inward to form a first recess 111. The first elastic element 120 is connected between the valve body assembly 200 and the pin 110 to provide a force that drives the pin 110 from the unlocked state to the locked state. The limiting mechanism 130 is fixed to the handle mechanism 300, and the limiting mechanism 130 is recessed inward from its outer edge to form a second recess 131. The first ball bearing 140 is mounted on the valve body assembly 200 and is located between the pin 110 and the limiting mechanism 130. The pin 110 and the first elastic element 120 are adapted to cooperate with each other, serving both as a pin to prevent the two valve body assemblies 200 from accidentally separating and as a linkage to lock or unlock the handle mechanism 300.

[0045] When the pin 110 is in the locked state, the first ball 140 is located outside the first recess 111 and between the second recess 131, and the handle mechanism 300 is in a rotation-restricted state. When the pin 110 is in the unlocked state, the first ball 140 can move freely between the first recess 111 and the second recess 131 to release the rotation restriction on the handle mechanism 300. Specifically, when the pin 110 is in the locked state and the handle mechanism 300 is in the closed position, the first ball 140 is located outside the first recess 111 and partially abuts against the second recess 131 to restrict the rotation of the handle mechanism 300 and ensure that the handle mechanism 300 is reliably limited to the closed position. When the pin 110 is in the unlocked state and the handle mechanism 300 is in the closed position, the first ball 140 is partially located within the first recess 111 and the second recess 131 to release the rotation restriction on the handle mechanism 300, making it easier to turn the handle mechanism 300 to the open position after valve docking. When the pin 110 is in the unlocked state and the handle mechanism 300 is in the open position, the first ball 140 is located outside the second recess 131 and partially abuts against the first recess 111, thereby locking the pin 110 and ensuring that it remains in the unlocked state. This prevents the two valve body assemblies 200 in the open state from accidentally disconnecting due to the movement of the pin 110. Simultaneously, it ensures that the two valves after docking can only be completely separated after the handle mechanism 300 is rotated to the closed position, preventing uncontrolled leakage of fluid in the pipeline. It should be noted that when the handle mechanism 300 is rotated away from the closed position, the first ball 140 is supported by the smooth surface of the limiting mechanism 130, ensuring that the first ball 140 always supports the pin 110 during the process of the handle mechanism 300 turning to the open position.

[0046] Furthermore, referring to Figure 1 , Figure 2 and Figure 5As shown, the valve body assembly 200 includes a valve body 210 and a valve core 220 movably installed within the valve body 210. The valve body 210 is the main outer shell of the valve, having a first end 212 and a second end 213 along the axial direction of the valve body assembly 200. A valve cavity 211 is formed inside the valve body 210, extending axially along the valve body assembly 200 to the end faces of the first end 212 and the second end 213. The first ends 212 of the two valve bodies 210 are adapted to be mated together, and the second ends 213 of the two valve bodies 210 can be connected to different pipelines respectively. Specifically, the valve core 220 can be a ball valve structure, connected to the handle mechanism 300. When the handle mechanism 300 is in the closed position, the valve core 220 blocks the first end 212 and the second end 213; when the handle mechanism 300 is in the open position, the valve core 220 connects the first end 212 and the second end 213. Ball valves are a well-known structure in the art, and will not be described in detail here.

[0047] The pin 110 can extend and retract along the axial direction of the valve body assembly 200, and one end of the pin 110 in the locked state extends out of the end face of the first end 212. When the first ends 212 of the two valve body assemblies 200 are brought together, the force generated by the engagement is suitable to push the pin 110 toward the second end 213 to drive the pin 110 into the unlocked state.

[0048] Specifically, the valve body assembly 200 includes a first mounting hole 214, a second mounting hole 215, and a third mounting hole 216 formed on the valve body 210. The first mounting hole 214 connects the inside and outside of the valve body 210, and the handle mechanism 300 passes through the first mounting hole 214 and can rotate about the axis of the first mounting hole 214. The second mounting hole 215 is recessed inward from the end face of the first end 212, and the pin 110 passes through the second mounting hole 215 and can move along the axial direction of the second mounting hole 215. The third mounting hole 216 extends from the side wall of the first mounting hole 214 to the side wall of the second mounting hole 215, and the first ball 140 is mounted in the third mounting hole 216 and can move along the axial direction of the third mounting hole 216. In this embodiment, the axial direction of the second mounting hole 215 is parallel to the axial direction of the valve body 210, and the first mounting hole 214 and the second mounting hole 215 are perpendicular to each other.

[0049] The first end 212 has a snap-fit ​​structure 217 and a recess 218 on its end face. The two valve body assemblies 200 are adapted to be screwed together by the snap-fit ​​structure 217. During the screwing process, the two first ends 212 approach each other and drive the end of the pin 110 to gradually retract into the second mounting hole 215. When the valve body assembly 200 is screwed in place, the end faces of the two first ends 212 are in close contact, and the end of the pin 110 corresponds to the recess 218 so as to be inserted into the recess 218 under the push of the first elastic member 120 and be in the unlocked state. The snap-fit ​​structure 217 is a structure known in the art, and will not be described in detail here.

[0050] Furthermore, the pin 110 includes a rod 112, which movably passes through the second mounting hole 215. One end of the rod 112 is provided with a head 113 adjacent to the first end 212. The rod 112 and the head 113 are preferably integrally formed to facilitate assembly. Preferably, in this embodiment, the first recess 111 is an annular groove surrounding the outer edge of the rod 112, so that after the pin 110 is installed, the first recess 111 can always correspond to the first ball 140. Preferably, the outer periphery of the head 113 is square to prevent the pin 110 from rotating around the axis of the second mounting hole 215, making the installation more stable. The head 113 has a head plane 1131 parallel to the end face of the first end 212, and an arc-shaped insert end 1132 protrudes from the head plane 1131. The insert end 1132 is adapted to the recess 218. After the two valve body assemblies 200 are connected, the insert end 1132 is suitable for embedding into the recess 218. By using the arc-shaped insert end 1132, the pin 110 is easy to insert into or disengage from the recess 218 when disassembly and assembly forces are applied, making valve disassembly and assembly convenient. The end face of the head 113 can be tightly attached to the end face of the first end 212, improving the holding effect of the head 113.

[0051] Furthermore, the outer diameter of the head 113 is larger than the outer diameter of the rod 112. The interlocking mechanism 100 also includes a limiting bolt 150, which is threaded to the other end of the rod 112. The outer diameter of the cap 151 of the limiting bolt 150 is larger than the outer diameter of the rod 112, so as to drive the pin 110 to be axially limited in the second mounting hole 215.

[0052] Specifically, the second mounting hole 215 includes a first segment 2151, a second segment 2152, and a third segment 2153 respectively connected to the two ends of the first segment 2151. The inner diameter of the first segment 2151 is adapted to the outer diameter of the rod 112 to accommodate the rod 112. The inner diameter of the second segment 2152 is adapted to the outer diameter of the head 113 to accommodate the head 113. The inner diameter of the third segment 2153 is adapted to the outer diameter of the cap 151 to accommodate the cap 151. A first stepped surface is formed between the first segment 2151 and the second segment 2152, and a second stepped surface is formed between the first segment 2151 and the third segment 2153. The first elastic member 120 is a spring sleeved outside the pin 110, with its two ends abutting between the head 113 and the first stepped surface. When the first elastic member 120 pushes the pin 110 into a locked state, the cap 151 is adapted to abut against the second stepped surface.

[0053] When installing the pin 110, the first elastic element 120 can be inserted into the rod 112 from the end of the rod 112 away from the head 113 and made into contact with the head 113. Then, the end of the rod 112 away from the head 113 is inserted into the first section 2151 from the second section 2152. The limiting bolt 150 is installed from the third section 2153 and threadedly connected to the end of the rod 112 away from the head 113. After installation, the head 113 faces the first step surface and the cap 151 faces the second step surface to ensure that the pin 110 is reliably axially limited in the second mounting hole 215.

[0054] Furthermore, the handle mechanism 300 includes a connector 310, a handle 320, and a locking bolt 330. The outer edge of the connector 310 is circular and rotatably passes through the first mounting hole 214 of the valve body 210. The limiting mechanism 130 is fixed to the connector 310. The limiting mechanism 130 is a sleeve structure with a circular outer edge to ensure that its outer edge reliably abuts against the first ball 140 during rotation. The connector 310 has an inner end located within the valve body assembly 200 and an outer end located outside the valve body assembly 200. A sealing element 340 is provided between the connector 310 and the first mounting hole 214 to improve sealing and prevent fluid from leaking to the outside through the gap between them. The handle 320 is located outside the valve body assembly 200 and does not contact the outer wall of the valve body assembly 200 to facilitate gripping and rotating the handle 320. One end of the handle 320 is connected to the outer end of the connector 310, and the other end extends along the rotation axis of the connector 310. The handle 320 and the connector 310 are preferably integrally formed to simplify the assembly process. A locking bolt 330 is connected between the inner end of the connector 310 and the valve core 220 to fix the valve core 220 and the connector 310 relative to each other.

[0055] Furthermore, as a preferred embodiment, the interlocking valve also includes a locking mechanism 400, which is disposed on the handle mechanism 300 and is adapted to lock the handle mechanism 300 when it moves to the closed or open position, so as to ensure that the handle mechanism 300 is reliably held in the closed or open position and reduce the probability of random movement of the handle mechanism 300.

[0056] Specifically, refer to Figure 6 and Figure 7As shown, the locking mechanism 400 includes a pressing member 410, a second elastic member 420, and a second ball bearing 430. A fourth mounting hole 321 is recessed inward from its side, the axial direction of which is perpendicular to the extension direction and rotation axis of the handle member 320. The pressing member 410 is a rod-shaped structure, installed within the fourth mounting hole 321, and movable along the axial direction of the fourth mounting hole 321. The second elastic member 420 is a spring, received within the fourth mounting hole 321, and abuts against the pressing member 410 and the handle member 320. The second elastic member 420 is adapted to push the pressing member 410 so that the pressing end of the pressing member 410 extends out of the fourth mounting hole 321. An operator is adapted to press the pressing end of the pressing member 410 to move the pressing member 410 to a first position, and when the pressing force is removed, the pressing member 410 is adapted to return to a second position under the rebound action of the second elastic member 420. The pressing member 410 has a fourth recess 411 formed by recessing inward from its outer edge. The structure of the fourth recess 411 is similar to that of the first recess 111. When the pressing member 410 is in the first position, the second ball 430 corresponds to the fourth recess 411. When the pressing member 410 is in the second position, the second ball 430 corresponds to the smooth surface of the pressing member 410.

[0057] The handle 320 has a fifth mounting hole 322 extending to the outside through the side wall of the fourth mounting hole 321. The second ball 430 is installed in the fifth mounting hole 322 of the handle 320, and partially protrudes from the handle 320. The axial direction of the fifth mounting hole 322 is perpendicular to the axial direction of the fourth mounting hole 321, and the second ball 430 is adapted to move along the axial direction of the fifth mounting hole 322. The valve body 210 has two third recesses 2191 recessed inward on the outer wall corresponding to the second ball 430. When the handle mechanism 300 is rotated to the closed position or the open position, the second ball 430 corresponds to different third recesses 2191 respectively.

[0058] When the pressing member 410 is pressed to the first position, the second ball 430 corresponds to the fourth recess 411, allowing the second ball 430 to partially reside within the fourth recess 411 to avoid the valve body 210. This allows the handle mechanism 300 to rotate to the closed or open position. During rotation, the second ball 430 is adapted to be tightly positioned within the fourth recess 411 under the push of the valve body 210, preventing the pressing member 410 from returning to the second position under the action of the second elastic member 420. When the handle mechanism 300 is in the closed or open position, the second ball 430 corresponds to the third recess 2191, releasing the push on the second ball 430. The pressing member 410 returns to the second position under the action of the second elastic member 420. At this time, the smooth surface of the pressing member 410 is adapted to press the second ball 430 against the third recess 2191, thereby locking the handle mechanism 300.

[0059] Preferably, the valve body 210 has a protrusion 2192 protruding from the outer wall of the handle 320. The protrusion 2192 is adapted to the rotation path of the second ball 430. The protrusion 2192 has a contact surface 2193 that contacts the second ball 430 to avoid contact between the valve body 210 and the handle 320. The third recess 2191 is formed by recessing inward from the contact surface 2193.

[0060] The installation process of the interlocking valve of the present invention is as follows: Initially, the pin 110 of a single valve is in a locked state and the handle mechanism 300 is in a closed position. The first ball 140 corresponds to the second recess 131 of the limiting mechanism 130. The smooth surface of the pin 110 is suitable for pressing the first ball 140 against the second recess 131 so that the handle mechanism 300 is locked in the closed position, ensuring the reliability of subsequent installation.

[0061] When two valves need to be assembled and connected, they are gradually tightened through the screw mechanism 217. During this process, the pin 110 is pushed back into the second mounting hole 215 by the end face of the first end 212. After the valves are connected, the pin 110 corresponds to the recess 218 at the first end 212. The first elastic element 120 pushes the pin 110 into the recess 218 so that the two valves are tightly connected. At this time, the pin 110 is in the unlocked state, and the first ball 140 corresponds to the first recess 111, thereby releasing the lock on the handle mechanism 300. The handle mechanism 300 can be rotated from the closed position to the open position to realize the conduction between the two valves. During the rotation of the handle mechanism 300, the first ball 140 disengages from the second recess 131 and is inserted into the first recess 111 under the push of the smooth surface of the limiting mechanism 130. This ensures that the pin 110 is reliably kept in the unlocked state while the handle mechanism 300 rotates to avoid the gap, preventing the two valves from rotating and separating.

[0062] When it is necessary to disassemble the two valves, the handle mechanism 300 should first be rotated to the closed position so that the second recess 131 corresponds to the first ball 140, thereby releasing the lock on the pin 110. Then, the two valves are gradually rotated away. During this process, the pin 110 disengages from the recess 218 and retracts into the second mounting hole 215 under the push of the end face of the first end 212. After the two valves are completely disassembled, the first end 212 releases the push on the pin 110, and the pin 110 returns to the locked state under the rebound of the first elastic element 120. At this time, the smooth surface of the pin 110 is suitable for pressing the first ball 140 against the second recess 131, thereby locking the handle mechanism 300 in the closed position.

[0063] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An interlocking valve, characterized in that, include: Valve body assembly (200); A handle mechanism (300) is connected to the valve body assembly (200) and is adapted to rotate to the closed position of closing the valve or the open position of opening the valve; A pin (110) is provided on the valve body assembly (200) and is movable to a locked state that restricts the rotation of the handle mechanism (300) or an unlocked state that releases the restriction. A first elastic element (120) is connected between the pin (110) and the valve body assembly (200); A limiting mechanism (130) is fixed to the handle mechanism (300); The first ball bearing (140) is installed in the valve body assembly (200) and is located between the pin (110) and the limiting mechanism (130); When the handle mechanism (300) is in the closed position, the limiting mechanism (130) and the first ball (140) can release the pin (110), and the pin (110) can retract into the valve body assembly (200) to allow the two valve body assemblies (200) to dock or separate; and when the two valve body assemblies (200) are docked, the pin (110) extends out and inserts into the opposing valve body assembly (200) under the action of the first elastic member (120) and is in the unlocked state.

2. The interlocking valve as described in claim 1, characterized in that, When the valve body assembly (200) is not docked and the handle mechanism (300) is in the closed position, the pin (110) extends out of the valve body assembly (200) under the push of the first elastic element (120) and is in a locked state, and the pin (110) can retract into the valve body assembly (200) under external docking force and be in a locked state.

3. The interlocking valve as described in claim 1, characterized in that, When the handle mechanism (300) is in the non-closed position, the limiting mechanism (130) and the first ball (140) are adapted to restrict the pin (110) so that the pin (110) remains in the unlocked state.

4. The interlocking valve as described in claim 1, characterized in that, The outer edge of the pin (110) is recessed inward to form a first recess (111), and the limiting mechanism (130) is recessed inward from its outer edge to form a second recess (131). When the pin (110) is in the locked state, the first ball (140) is located outside the first recess (111) and between the second recess (131), and the handle mechanism (300) is in a rotation-restricted state. When the pin (110) is in the unlocked state, the first ball (140) can move freely between the first recess (111) and the second recess (131) to release the rotation restriction on the handle mechanism (300).

5. The interlocking valve as described in claim 4, characterized in that, The limiting mechanism (130) is a sleeve structure fitted onto the handle mechanism (300). The outer edge of the limiting mechanism (130) is circular, and the second recess (131) is formed by recessing inward from part of the outer edge of the limiting mechanism (130).

6. The interlocking valve as described in claim 1, characterized in that, The valve body assembly (200) has a first end (212) for docking. The end face of the first end (212) is provided with a snap-lock structure (217) and a recess (218). The pin (110) can extend or retract from the first end (212) along the axial direction of the valve body assembly (200). When the first ends (212) of the two valve body assemblies (200) are snap-locked together, the pin (110) is inserted into the opposite recess (218) and is in an unlocked state.

7. The interlocking valve as described in claim 6, characterized in that, The first end (212) has a second mounting hole (215) recessed in its end face, and the pin (110) includes: The rod (112) is movably inserted through the second mounting hole (215); The head (113) is located at one end of the rod (112), and the first recess (111) is formed by recessing inward from the outer edge of the rod (112); The head (113) includes a head plane (1131) and an embedded end (1132) protruding from the head plane (1131). The embedded end (1132) has an arc-shaped structure. When the two valve body assemblies (200) are docked, the head plane (1131) abuts against the end face of the first end (212) of the valve body assembly (200) facing each other, and the embedded end (1132) is embedded in the opposite concave hole (218).

8. The interlocking valve as described in claim 7, characterized in that, The first recess (111) is an annular groove surrounding the outer edge of the rod (112).

9. The interlocking valve as described in claim 7, characterized in that, The outer diameter of the head (113) is larger than the outer diameter of the rod (112). The other end of the rod (112) is threaded with a limiting bolt (150). The outer diameter of the cap (151) of the limiting bolt (150) is larger than the outer diameter of the rod (112). The second mounting hole (215) includes a first section (2151) for receiving the rod (112), a second section (2152) for receiving the head (113), and a third section (2153) for receiving the cap (151). A first stepped surface is formed between the first section (2151) and the second section (2152). A second stepped surface is formed between the first section (2151) and the third section (2153). The first elastic element (120) is sleeved outside the pin (110) and its two ends abut against the head (113) and the first stepped surface.

10. The interlocking valve as described in claim 1, characterized in that, The valve body assembly (200) includes: The valve body (210) has a first end (212) and a second end (213) in the axial direction of the valve body assembly (200), and a valve cavity (211) is formed in the valve body (210), the valve cavity (211) extending through the valve body assembly (200) to the end faces of the first end (212) and the second end (213); The valve core (220) is movably installed in the valve cavity (211) and connected to the handle mechanism (300). When the handle mechanism (300) is in the closed position, the valve core (220) blocks the first end (212) and the second end (213). When the handle mechanism (300) is in the open position, the valve core (220) connects the first end (212) and the second end (213). The valve body (210) has a first mounting hole (214), a second mounting hole (215), and a third mounting hole (216). The first mounting hole (214) connects the inside and outside of the valve body (210). The handle mechanism (300) passes through the first mounting hole (214) and can rotate around the axis of the first mounting hole (214). The second mounting hole (215) is formed by extending inward from the end face of the first end (212). The pin (110) passes through the second mounting hole (215). The first ball bearing (140) is installed in the third mounting hole (216) and can move along the axial direction of the second mounting hole (215). The third mounting hole (216) extends from the side wall of the first mounting hole (214) to the side wall of the second mounting hole (215). The first ball bearing (140) is installed in the third mounting hole (216) and can move along the axial direction of the third mounting hole (216). The first mounting hole (214) and the second mounting hole (215) are perpendicular to each other. The axial direction of the second mounting hole (215) is parallel to the axial direction of the valve body (210).

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