Duplex locking valve

Abstract

The invention discloses a duplex locking valve. The duplex locking valve comprises a valve body; the handle mechanism is connected with the valve body and is suitable for rotating to a closing position for closing the valve body or an opening position for opening the valve body; the interlocking mechanism is connected between the valve body and the handle mechanism and has a locking state and an unlocking state, when the interlocking mechanism is in the locking state, the interlocking mechanism is suitable for driving the handle mechanism to be locked at the closing position, and when the interlocking mechanism is in the unlocking state, the interlocking mechanism is suitable for driving the handle mechanism to be locked at the unlocking position. The interlocking mechanism is suitable for unlocking the handle mechanism; the valve bodies of the two valves are suitable for being in butt joint, so that the interlocking mechanism is switched from the self-locking state to the unlocking state, and when the two valve bodies are separated, the interlocking mechanism is reset from the self-unlocking state to the locking state. By the adoption of the structure, on-site butt joint and movable installation requirements are met, and the valve can be opened and closed after being in butt joint.

Description

Technical Field

[0001] The invention relates to a valve, in particular to a double interlocking valve. Background Art

[0002] The valve is usually connected between two disconnected pipes. For example, Chinese invention patent CN202411297669.1 discloses a corrosion-resistant and erosion-resistant ball valve, which includes a valve body, a ball installed in the valve body, a handle connected to the ball, and adapters provided on both sides of the valve body. However, this type of ball valve is only suitable for occasions where the pipes at both ends are relatively fixed, and requires a larger installation space. At the same time, it cannot meet the requirements of on-site docking and mobile installation. Especially in server application scenarios, all components inside the server are usually pre-assembled in the factory, and all joints only need to be connected in the equipment room. If an on-site installed piping system is used, it is easy to cause installation failure and bring foreign matter into the pipeline.

[0003] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Summary of the invention

[0004] The object of the present invention is to provide a double interlocking valve, which is convenient for on-site docking and mobile installation requirements, and the valve can be opened and closed only after docking.

[0005] The object of the present invention is to achieve the following technical solution: a double interlocking valve, comprising:

[0006] Valve body;

[0007] A handle mechanism connected to the valve body and adapted to rotate to a closed position for closing the valve body or an open position for opening the valve body;

[0008] A chain mechanism is connected between the valve body and the handle mechanism and has a locked state and an unlocked state. When the chain mechanism is in the locked state, the chain mechanism is suitable for driving the handle mechanism to be locked in a closed position. When the chain mechanism is in the unlocked state, the chain mechanism is suitable for releasing the lock of the handle mechanism.

[0009] The valve bodies of the two valves are suitable for being connected with each other so that the interlocking mechanism switches from a locked state to an unlocked state, and when the two valve bodies are separated, the interlocking mechanism resets from the unlocked state to the locked state.

[0010] Further, only when the handle mechanism is in the closed position, the two valve bodies are suitable for being connected to each other or separated from each other.

[0011] Furthermore, the chain mechanism comprises:

[0012] A push rod is movably disposed on the valve body and can be moved to a locked state or an unlocked state, and an outer edge of the push rod is inwardly recessed to form a first recessed portion;

[0013] A first elastic member, connected between the valve body and the push rod, to provide a force driving the push rod to switch from an unlocked state to a locked state;

[0014] A limiting sleeve is fixed to the handle mechanism, and the limiting sleeve is recessed inward from its outer edge to form a second recessed portion;

[0015] A first ball, mounted on the valve body and located between the push rod and the limiting sleeve;

[0016] Wherein, when the push rod is in a locked state and the handle mechanism is in a closed position, the first ball is located outside the first recessed portion and partially pressed against the second recessed portion; when the push rod is in an unlocked state and the handle mechanism is in a closed position, the first ball is partially located inside the first recessed portion and the second recessed portion to release the rotation restriction of the handle mechanism; when the push rod is in an unlocked state and the handle mechanism is in an open position, the first ball is located outside the second recessed portion and partially pressed against the first recessed portion.

[0017] Furthermore, the valve body comprises:

[0018] A valve housing, wherein a valve cavity is formed inside, and the valve cavity penetrates the valve body to the first end and the second end along the axial direction of the valve body;

[0019] A valve core is movably installed in the valve cavity and connected to the handle mechanism. When the handle mechanism is in a closed position, the valve core blocks the first end and the second end. When the handle mechanism is in an open position, the valve core conducts the first end and the second end.

[0020] The push rod can be extended and retracted along the axial direction of the valve body, and one end of the push rod in the locked state extends out of the end surface of the first end, and the first ends of the two valve bodies are suitable for being connected to each other to push the push rod to retract toward the first end to the unlocked state.

[0021] Furthermore, the valve body comprises:

[0022] A first mounting hole is formed in the valve housing and communicates with the inside and outside of the valve housing. The handle mechanism is inserted into the first mounting hole and can rotate around the axis of the first mounting hole.

[0023] A second mounting hole is formed by being recessed inward from the end surface of the first end, and the push rod is inserted into the second mounting hole and can move along the axial direction of the second mounting hole;

[0024] A third mounting hole extending from the side wall of the first mounting hole to the side wall of the second mounting hole, wherein the first ball is mounted in the third mounting hole and can move along the axial direction of the third mounting hole;

[0025] The axial direction of the second mounting hole is parallel to the axial direction of the valve housing, and the axial directions of the first mounting hole, the second mounting hole and the third mounting hole are perpendicular to each other.

[0026] Furthermore, the push rod comprises:

[0027] A rod body, movably inserted into the second mounting hole, one end of the rod body being provided with a head adjacent to the first end;

[0028] A limit bolt, threadedly connected to the other end of the rod body;

[0029] The outer diameter of the head is larger than the outer diameter of the rod body, and the outer diameter of the cap of the limiting bolt is larger than the outer diameter of the rod body, so as to drive the push rod to be axially limited in the second mounting hole.

[0030] Furthermore, the second mounting hole comprises:

[0031] The first section is used to accommodate the rod body;

[0032] The second section is used to accommodate the head;

[0033] The third section is used to accommodate the cap portion;

[0034] A first step surface is formed between the first section and the second section, a second step surface is formed between the first section and the third section, the first elastic member is sleeved outside the push rod, and both ends are abutted between the head and the first step surface, and when the first elastic member pushes the push rod to a locked state, the cap portion abuts against the second step surface.

[0035] Furthermore, a screw-lock structure and a recessed hole are provided on the end surface of the first end, and the two valve bodies are suitable for being screwed together through the screw-lock structure. When the valve bodies are screwed into place, the end of the push rod is embedded in the recessed hole matching therewith and is in an unlocked state.

[0036] Furthermore, the double locking valve further comprises a locking mechanism, and the locking mechanism comprises:

[0037] A pressing member, movably installed in the handle mechanism, wherein the pressing member is recessed inward from its outer edge to form a fourth recessed portion;

[0038] A second elastic member is held between the pressing member and the handle mechanism, and the pressing member is adapted to be pressed to a first position or to be reset to a second position under the rebound effect of the second elastic member;

[0039] A second ball is installed in the handle mechanism and partially exposed outside the handle mechanism;

[0040] Wherein, the outer wall of the valve housing is inwardly provided with two third recessed parts, and when the handle mechanism is rotated to the closed position or the open position, the second ball respectively corresponds to different third recessed parts;

[0041] When the pressing member is in the first position, the second ball corresponds to the fourth recessed portion to allow the handle mechanism to turn to a closed position or an open position; when the handle mechanism is in the closed position or the open position, the pressing member is suitable for resetting to the second position and pressing the second ball against the third recessed portion.

[0042] Furthermore, the handle mechanism comprises:

[0043] A connecting member is rotatably disposed in the valve housing and has an inner end located in the valve body and an outer end located outside the valve body;

[0044] A handle member, one end of which is connected to the outer end of the connecting member, and the other end of which extends in a direction perpendicular to the rotation axis of the connecting member, wherein the locking mechanism is arranged at the end of the handle member away from the connecting member;

[0045] A locking bolt connected between the inner end of the connecting piece and the valve core;

[0046] The handle member is not in contact with the outer wall of the valve housing, the valve housing is provided with a convex portion toward the outer wall of the handle member, the convex portion has a contact surface in contact with the second ball, and the third recessed portion is recessed inward from the contact surface.

[0047] 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 respectively, and then the valve bodies of the two valves are docked to achieve the connection and conduction of the two pipelines. This structure is very convenient for on-site docking, which solves the problem that the existing products cannot be moved and installed, and the pipeline system can be pre-assembled in the factory without on-site installation, thereby avoiding installation failure and the problem of foreign matter entering the pipeline; in addition, by setting a chain mechanism, when a single valve is not docked with other valves, the chain mechanism is suitable for driving the handle mechanism to be locked in the closed position, and after the two valves are docked, the chain mechanism switches from the locked state to the unlocked state to release the lock on the handle mechanism, so that the undocking single valve cannot rotate the handle mechanism, which can effectively avoid the leakage of fluid in the pipeline during the docking process, and when the two valves are separated, the chain mechanism resets from the unlocked state to the locked state, so that the handle mechanism can be locked again, thereby improving the reliability during the installation process and ensuring the safe switching of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a three-dimensional structural schematic diagram of the double interlocking valve of the present invention.

[0049] Figure 2 It is a structural schematic diagram of the valve in the present invention.

[0050] Figure 3 It is a schematic diagram of the state in which the interlocking mechanism of the valve in the present invention is in a locked state and the handle mechanism is in a closed position.

[0051] Figure 4 It is a schematic diagram of the state in which the interlocking mechanism of the valve in the present invention is in an unlocked state and the handle mechanism is in an open position.

[0052] Figure 5 It is a cross-sectional schematic diagram of the double interlocking valve of the present invention.

[0053] Figure 6 It is a cross-sectional schematic diagram of the double interlocking valve of the present invention in another direction.

[0054] Figure 7 yes Figure 6 A partial enlarged view at point A.

[0055] Description of reference numerals:

[0056] 100, interlocking mechanism; 110, push rod; 111, first recessed portion; 112, rod body; 113, stop bolt; 1131, cap; 114, head; 1141, head end surface; 1142, embedded end; 120, first elastic member; 130, stop sleeve; 131, second recessed portion; 140, first ball; 200, valve body; 210, valve housing; 211, valve cavity; 212, first end; 213, second end; 214, first mounting hole; 215, second mounting hole; 2151, first section; 2152 , second section; 2153, third section; 216, third mounting hole; 217, turn-on structure; 218, recessed hole; 2191, third recessed portion; 2192, convex portion; 2193, contact surface; 220, valve core; 300, handle mechanism; 310, connecting piece; 320, handle piece; 321, fourth mounting hole; 322, fifth mounting hole; 330, locking bolt; 340, sealing piece; 400, locking mechanism; 410, pressing piece; 411, fourth recessed portion; 420, second elastic piece; 430, second ball. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0058] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0059] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0060] See also Figures 1 to 4As shown, a double interlocking valve corresponding to a preferred embodiment of the present invention includes: a valve body 200; a handle mechanism 300, which is connected to the valve body 200 and is suitable for rotating to a closed position for closing the valve body 200 or an open position for opening the valve body 200; a chain mechanism 100, which is received between the valve body 200 and the handle mechanism 300 and has a locked state and an unlocked state. When the chain mechanism 100 is in the locked state, the chain mechanism 100 is suitable for driving the handle mechanism 300 to be locked in the closed position, and when the chain mechanism 100 is in the unlocked state, the chain mechanism 100 is suitable for releasing the lock of the handle mechanism 300; wherein, the valve bodies 200 of the two valves are suitable for being connected relative to each other so that the chain mechanism 100 switches from the locked state to the unlocked state, and when the two valve bodies 200 are separated, the chain mechanism 100 resets from the unlocked state to the locked state.

[0061] By adopting the above-mentioned valve structure, the present invention allows a single valve to be connected to different pipelines respectively, and then the valve bodies 200 of the two valves are connected to each other to achieve connection and conduction of the two pipelines. This structure is very convenient for on-site connection, which solves the problem that the existing products cannot be moved and installed, and the pipeline system can be pre-assembled in the factory without on-site installation, thereby avoiding installation failure and the problem of foreign matter entering the pipeline. In addition, by setting the interlocking mechanism 100, when the single valve is not connected to other valves, the interlocking mechanism 100 is suitable for driving the handle mechanism 300 to be locked in the closed position. After the two valves are connected, the interlocking mechanism 100 switches from the locked state to the unlocked state to release the lock of the handle mechanism 300, so that the unconnected single valve cannot rotate the handle mechanism 300, which can effectively avoid the leakage of fluid in the pipeline during the connection process, and when the two valves are separated, the interlocking mechanism 100 resets from the unlocked state to the locked state, so that the handle mechanism 300 can be locked again, thereby improving the reliability during the installation process and ensuring the safe switching of the pipeline.

[0062] Furthermore, only when the handle mechanism 300 is in the closed position, the two valve bodies 200 are suitable for docking or separation, so that the valve body 200 in the open state cannot dock or separate from other valve bodies 200, further improving the reliability during the installation process.

[0063] Specifically, the interlocking mechanism 100 includes a push rod 110, a first elastic member 120, a limiting sleeve 130 and a first ball 140. The push rod 110 is movably arranged on the valve body 200 and can be moved to a locked state or an unlocked state. The outer edge of the push rod 110 is recessed inward to form a first recessed portion 111. The first elastic member 120 is connected between the valve body 200 and the push rod 110 to provide a force to drive the push rod 110 to switch from the unlocked state to the locked state. The limiting sleeve 130 is fixed on the handle mechanism 300, and the limiting sleeve 130 is recessed inward from its outer edge to form a second recessed portion 131. The first ball 140 is installed on the valve body 200 and is located between the push rod 110 and the limiting sleeve 130.

[0064] When the push rod 110 is in a locked state and the handle mechanism 300 is in a closed position, the first ball 140 is located outside the first recessed portion 111 and partially abuts against the second recessed portion 131 to limit the rotation of the handle mechanism 300 and ensure that the handle mechanism 300 is reliably limited in the closed position. When the push rod 110 is in an unlocked state and the handle mechanism 300 is in a closed position, the first ball 140 is partially located in the first recessed portion 111 and the second recessed portion 131 to release the rotation restriction of the handle mechanism 300, so as to facilitate the handle mechanism 300 to be turned to the open position after the valve is docked. When the push rod 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 recessed portion 131 and partially pressed against the first recessed portion 111, thereby locking the push rod 110 and ensuring that it remains in the unlocked state, avoiding accidental disconnection between the two valve bodies 200 in the open state due to the movement of the push rod 110, and at the same time, the two valves after docking can be completely separated only after the handle mechanism 300 is rotated to the closed position, avoiding uncontrolled leakage of fluid in the pipeline. It should be noted that when the handle mechanism 300 is turned away from the closed position, the first ball 140 is pressed against the smooth surface of the limit sleeve 130 to ensure that the first ball 140 always presses against the push rod 110 during the process of the handle mechanism 300 turning to the open position.

[0065] Further, refer to Figure 1 , Figure 2 and Figure 5As shown, the valve body 200 includes a valve housing 210 and a valve core 220 movably installed in the valve housing 210. A valve cavity 211 is formed inside the valve housing 210, and the valve cavity 211 penetrates to a first end 212 and a second end 213 along the axial direction of the valve body 200. The first ends 212 of the two valve bodies 200 are suitable for docking with each other, and the second ends 213 of the two valve bodies 200 can be connected to different pipelines respectively. The valve core 220 can specifically be a ball valve structure, which is 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 conducts the first end 212 and the second end 213. The ball valve is a well-known structure in the art, and the present invention will not be described in detail here.

[0066] The push rod 110 can be extended and retracted along the axial direction of the valve body 200, and one end of the push rod 110 in the locked state extends out of the end surface of the first end 212. When the first ends 212 of the two valve bodies 200 are connected, the force generated by the connection is suitable for pushing the push rod 110 to retract toward the first end 212 to drive the push rod 110 to be in the unlocked state.

[0067] Specifically, the valve body 200 includes a first mounting hole 214, a second mounting hole 215, and a third mounting hole 216 which are opened on the valve housing 210. The first mounting hole 214 communicates with the inside and outside of the valve housing 210, and the handle mechanism 300 is arranged in 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 being recessed inward from the end surface of the first end 212, and the push rod 110 is arranged in 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 installed 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 housing 210, and the axial directions of the first mounting hole 214, the second mounting hole 215, and the third mounting hole 216 are perpendicular to each other.

[0068] The end surface of the first end 212 is provided with a screw-lock structure 217 and a concave hole 218. The two valve bodies 200 are suitable for being screwed together through the screw-lock structure 217. During the screwing process, the two first ends 212 approach each other and drive the end of the push rod 110 to gradually shrink into the second mounting hole 215. When the valve body 200 is screwed into place, the end surfaces of the two first ends 212 are closely attached to each other, and the end of the push rod 110 corresponds to the concave hole 218, so that it is inserted into the concave hole 218 under the push of the first elastic member 120 and is in an unlocked state. The screw-lock structure 217 is a well-known structure in the art, and the present invention will not be described in detail here.

[0069] Further, the push rod 110 includes a rod body 112 and a limiting bolt 113. The rod body 112 is movably inserted into the second mounting hole 215. One end of the rod body 112 is provided with a head 114 adjacent to the first end 212. The rod body 112 and the head 114 are preferably integrally formed for easy assembly. The limiting bolt 113 is threadedly connected to the other end of the rod body 112. The outer diameter of the head 114 is greater than the outer diameter of the rod body 112, and the outer diameter of the cap 1131 of the limiting bolt 113 is greater than the outer diameter of the rod body 112, so as to drive the push rod 110 to be axially limited to the second mounting hole 215.

[0070] Specifically, the second mounting hole 215 includes a first section 2151, a second section 2152 and a third section 2153 respectively connected to both ends of the first section 2151. The inner diameter of the first section 2151 is adapted to the outer diameter of the rod body 112, so as to accommodate the rod body 112. The inner diameter of the second section 2152 is adapted to the outer diameter of the head 114, so as to accommodate the head 114. The inner diameter of the third section 2153 is adapted to the outer diameter of the cap 1131, so as to accommodate the cap 1131. A first step surface is formed between the first section 2151 and the second section 2152, and a second step surface is formed between the first section 2151 and the third section 2153. The first elastic member 120 is a spring sleeved outside the push rod 110, and its two ends are abutted between the head 114 and the first step surface. When the first elastic member 120 pushes the push rod 110 to be in a locked state, the cap 1131 is suitable for abutting against the second step surface.

[0071] When installing the push rod 110, the first elastic member 120 can be first inserted into the rod body 112 from the end of the rod body 112 away from the head 114 and in contact with the head 114. Then, the end of the rod body 112 away from the head 114 is inserted from the second section 2152 into the first section 2151. The limiting bolt 113 is installed from the third section 2153 and threadedly connected to the end of the rod body 112 away from the head 114. After the installation is completed, the head 114 faces the first step surface and the cap portion 1131 faces the second step surface to ensure that the push rod 110 is reliably axially limited in the second mounting hole 215.

[0072] Preferably, in this embodiment, the first recessed portion 111 is an annular groove arranged around the outer edge of the rod body 112, so that after the push rod 110 is installed, the first recessed portion 111 can always correspond to the first ball 140. Preferably, the outer periphery of the head 114 is square to prevent the push rod 110 from rotating around the axis of the second mounting hole 215, and it is more stable after installation. The head 114 has a head end face 1141 parallel to the end face of the first end 212, and a hemispherical embedding end 1142 is convexly provided on the head end face 1141. The embedding end 1142 is adapted to the concave hole 218. When the two valve bodies 200 are connected, the embedding end 1142 is suitable for embedding into the concave hole 218. By adopting the hemispherical embedding end 1142, the push rod 110 is easy to be embedded in or out of the recessed hole 218 when the disassembly force is applied, and the valve is easy to disassemble and assemble. The end face of the head 114 can be tightly attached to the end face of the first end 212, thereby improving the supporting effect of the head 114.

[0073] Furthermore, the handle mechanism 300 includes a connecting member 310, a handle member 320 and a locking bolt 330. The outer edge of the connecting member 310 is circular, and it is rotatably inserted into the first mounting hole 214 of the valve housing 210. The limiting sleeve 130 is fixed to the connecting member 310, and the outer edge of the limiting sleeve 130 is circular to ensure that its outer edge can reliably press against the first ball 140 during the rotation process. The connecting member 310 has an inner end located inside the valve body 200 and an outer end located outside the valve body 200. A sealing member 340 is provided between the connecting member 310 and the first mounting hole 214 to improve the sealing performance and prevent the fluid from leaking to the outside through the gap between the two. The handle member 320 is located outside the valve body 200 and does not contact the outer wall of the valve body 200, so as to facilitate holding and rotating the handle member 320. One end of the handle member 320 is connected to the outer end of the connecting member 310, and the other end extends along the rotation axis direction of the connecting member 310. The handle 320 and the connecting member 310 are preferably formed in one piece to simplify the assembly process. The locking bolt 330 is connected between the inner end of the connecting member 310 and the valve core 220 to fix the valve core 220 and the connecting member 310 relatively.

[0074] Furthermore, as a preferred embodiment, the double-locking valve also includes a locking mechanism 400, which is arranged on the handle mechanism 300 and is suitable for locking the handle mechanism 300 when the handle mechanism 300 moves to a closed position or an open position, so as to ensure that the handle mechanism 300 is reliably maintained in the closed position or the open position, thereby reducing the probability of random movement of the handle mechanism 300.

[0075] 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 430. The handle member 320 is recessed inward from its side to form a fourth mounting hole 321, and the axial direction of the fourth mounting hole 321 is perpendicular to the extension direction and the rotation axis direction of the handle member 320. The pressing member 410 is a rod-shaped structure, which is installed in the fourth mounting hole 321 and can move along the axial direction of the fourth mounting hole 321. The second elastic member 420 is a spring, which is accommodated in the fourth mounting hole 321 and abuts between the pressing member 410 and the handle member 320. The second elastic member 420 is suitable for pushing the pressing member 410 so that the pressing end of the pressing member 410 extends out of the fourth mounting hole 321. The operator is suitable for pressing the pressing end of the pressing member 410 to move the pressing member 410 to the first position, and when the pressing force is removed, the pressing member 410 is suitable for returning to the second position under the rebound action of the second elastic member 420. The pressing member 410 is recessed inward from its outer edge to form a fourth recessed portion 411, and the structure of the fourth recessed portion 411 is similar to that of the first recessed portion 111. When the pressing member 410 is in the first position, the second ball 430 corresponds to the fourth recessed portion 411, and when the pressing member 410 is in the second position, the second ball 430 corresponds to the smooth surface of the pressing member 410.

[0076] The handle member 320 is provided with a fifth mounting hole 322 extending to the outside from the side wall of the fourth mounting hole 321. The second ball 430 is installed in the fifth mounting hole 322 of the handle member 320 and partially exposed from the handle member 320. The axial direction of the fifth mounting hole 322 is perpendicular to the axial direction of the fourth mounting hole 321. The second ball 430 is adapted to move along the axial direction of the fifth mounting hole 322. Two third recessed portions 2191 are recessed inwardly on the outer wall of the valve housing 210 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 recessed portions 2191 respectively.

[0077] When the pressing member 410 is pressed to the first position, the second ball 430 corresponds to the fourth recessed portion 411, so that the second ball 430 can be partially located in the fourth recessed portion 411 to avoid the valve housing 210, thereby allowing the handle mechanism 300 to turn to the closed position or the open position, and during the rotation process, the second ball 430 is suitable for being tightly placed in the fourth recessed portion 411 under the push of the valve housing 210, so as to prevent 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 position or the open position, the second ball 430 corresponds to the third recessed portion 2191, so that the push against the second ball 430 is released, and the pressing member 410 is reset 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 suitable for pressing the second ball 430 against the third recessed portion 2191 to achieve the purpose of locking the handle mechanism 300.

[0078] Preferably, a protrusion 2192 is protruded from the outer wall of the valve housing 210 facing the handle member 320, and 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 housing 210 and the handle member 320, and the third recessed portion 2191 is recessed inward from the contact surface 2193.

[0079] The installation process of the double-interlocking valve of the present invention is as follows: initially, the push rod 110 of a single valve is in a locked state and the handle mechanism 300 is in a closed position, the second ball 430 corresponds to the second recessed portion 131 of the limiting sleeve 130, and the smooth surface of the push rod 110 is suitable for pressing the second ball 430 tightly against the second recessed portion 131 to lock the handle mechanism 300 in the closed position, thereby ensuring the reliability of subsequent installation.

[0080] When the two valves need to be assembled and docked, the two valves are gradually tightened by the screw-lock structure 217. During this process, the push rod 110 is pushed by the end surface of the first end 212 and retracts into the second mounting hole 215. When the valves are docked in place, the push rod 110 corresponds to the recessed hole 218 at the first end 212, and the first elastic member 120 pushes the push rod 110 to be embedded in the recessed hole 218, so that the two valves are closely docked. At this time, the push rod 110 is in an unlocked state, and the first ball 140 corresponds to the first recessed portion 111, thereby releasing the lock of the handle mechanism 300, and the handle mechanism 300 can be rotated from the closed position to the open position to achieve conduction between the two valves. During the rotation of the handle mechanism 300, the first ball 140 is disengaged from the second recessed portion 131, and is embedded in the first recessed portion 111 under the push of the smooth surface of the limit sleeve 130, so as to achieve the handle mechanism 300 to rotate and avoid, while ensuring that the push rod 110 is reliably maintained in the unlocked state to prevent the two valves from rotating and separating.

[0081] When the two valves need to be disassembled, the handle mechanism 300 needs to be rotated to the closed position first, so that the second recessed portion 131 corresponds to the first ball 140, and the lock on the push rod 110 is released; then the two valves are gradually rotated away, during which the push rod 110 disengages from the recessed hole 218 and retracts into the second mounting hole 215 under the push of the end surface of the first end 212; when the two valves are completely detached, the first end 212 releases the push on the push rod 110, and the push rod 110 returns to the locked state under the rebound action of the first elastic member 120. At this time, the smooth surface of the push rod 110 is suitable for pressing the first ball 140 against the second recessed portion 131, thereby locking the handle mechanism 300 in the closed position.

[0082] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A double interlocking valve, characterized in that: include: Valve body (200); A handle mechanism (300) connected to the valve body (200) and adapted to rotate to a closed position for closing the valve body (200) or an open position for opening the valve body (200); A chain mechanism (100) is connected between the valve body (200) and the handle mechanism (300) and has a locked state and an unlocked state. When the chain mechanism (100) is in the locked state, the chain mechanism (100) is suitable for driving the handle mechanism (300) to be locked in a closed position. When the chain mechanism (100) is in the unlocked state, the chain mechanism (100) is suitable for releasing the lock on the handle mechanism (300). The valve bodies (200) of the two valves are suitable for being connected to each other so that the interlocking mechanism (100) switches from a locked state to an unlocked state, and when the two valve bodies (200) are separated, the interlocking mechanism (100) resets from the unlocked state to the locked state.

2. The double interlocking valve according to claim 1, characterized in that: Only when the handle mechanism (300) is in the closed position, the two valve bodies (200) are suitable for being connected to each other or being separated from each other.

3. The double locking valve according to claim 1, characterized in that: The interlocking mechanism (100) comprises: A push rod (110) is movably disposed on the valve body (200) and can be moved to a locked state or an unlocked state, and an outer edge of the push rod (110) is recessed inward to form a first recessed portion (111); A first elastic member (120) is connected between the valve body (200) and the push rod (110) to provide a force for driving the push rod (110) to switch from an unlocked state to a locked state; A limiting sleeve (130) is fixed to the handle mechanism (300), and the limiting sleeve (130) is recessed inward from its outer edge to form a second recessed portion (131); A first ball (140) is mounted on the valve body (200) and is located between the push rod (110) and the limiting sleeve (130); Wherein, when the push rod (110) is in a locked state and the handle mechanism (300) is in a closed position, the first ball (140) is located outside the first recessed portion (111) and is partially pressed against the second recessed portion (131); when the push rod (110) is in an unlocked state and the handle mechanism (300) is in a closed position, the first ball (140) is partially located inside the first recessed portion (111) and the second recessed portion (131) to release the rotation restriction of the handle mechanism (300); when the push rod (110) is in an unlocked state and the handle mechanism (300) is in an open position, the first ball (140) is located outside the second recessed portion (131) and is partially pressed against the first recessed portion (111).

4. The double interlocking valve according to claim 3, characterized in that: The valve body (200) comprises: A valve housing (210) having a valve cavity (211) formed therein, wherein the valve cavity (211) penetrates the valve body (200) in the axial direction to a first end (212) and a second end (213); a valve core (220) movably mounted in the valve cavity (211) and connected to the handle mechanism (300); when the handle mechanism (300) is in a closed position, the valve core (220) blocks the first end (212) and the second end (213); when the handle mechanism (300) is in an open position, the valve core (220) conducts the first end (212) and the second end (213); The push rod (110) can be extended and retracted along the axial direction of the valve body (200), and one end of the push rod (110) in a locked state extends out of the end surface of the first end (212), and the first ends (212) of the two valve bodies (200) are suitable for being connected to each other to push the push rod (110) to retract toward the first end (212) to an unlocked state.

5. The double interlocking valve according to claim 4, characterized in that: The valve body (200) comprises: A first mounting hole (214) is provided in the valve housing (210) and communicates with the inside and outside of the valve housing (210); the handle mechanism (300) is inserted into the first mounting hole (214) and can rotate around the axis of the first mounting hole (214); A second mounting hole (215) is formed by being recessed inward from the end surface of the first end (212); the push rod (110) is inserted into the second mounting hole (215) and is movable along the axial direction of the second mounting hole (215); A third mounting hole (216) extending from a side wall of the first mounting hole (214) to a side wall of the second mounting hole (215), wherein the first ball (140) is mounted in the third mounting hole (216) and is movable along an axial direction of the third mounting hole (216); The axial direction of the second mounting hole (215) is parallel to the axial direction of the valve housing (210), and the axial directions of the first mounting hole (214), the second mounting hole (215) and the third mounting hole (216) are perpendicular to each other.

6. The double interlocking valve according to claim 5, characterized in that: The top rod (110) comprises: A rod body (112) is movably inserted into the second mounting hole (215), and one end of the rod body (112) is provided with a head (114) adjacent to the first end (212); A limiting bolt (113) threadedly connected to the other end of the rod body (112); The outer diameter of the head (114) is greater than the outer diameter of the rod body (112), and the outer diameter of the cap (1131) of the limiting bolt (113) is greater than the outer diameter of the rod body (112), so as to drive the push rod (110) to be axially limited in the second mounting hole (215).

7. The double interlocking valve according to claim 6, characterized in that: The second mounting hole (215) comprises: The first section (2151) is used to accommodate the rod body (112); The second section (2152) is used to accommodate the head (114); The third section (2153) is used to accommodate the cap portion (1131); A first step surface is formed between the first section (2151) and the second section (2152), and a second step surface is formed between the first section (2151) and the third section (2153). The first elastic member (120) is sleeved outside the push rod (110), and both ends are abutted between the head (114) and the first step surface. When the first elastic member (120) pushes the push rod (110) to be in a locked state, the cap portion (1131) abuts against the second step surface.

8. The double interlocking valve according to claim 4, characterized in that: A screw-lock structure (217) and a recessed hole (218) are provided on the end surface of the first end (212), and the two valve bodies (200) are suitable for being screwed together via the screw-lock structure (217). When the valve bodies (200) are screwed into place, the end of the push rod (110) is embedded in the recessed hole (218) that matches it and is in an unlocked state.

9. The double interlocking valve according to claim 4, characterized in that: The double locking valve further comprises a locking mechanism (400), wherein the locking mechanism (400) comprises: A pressing member (410) is movably installed in the handle mechanism (300), and the pressing member (410) is recessed inward from its outer edge to form a fourth recessed portion (411); a second elastic member (420) abutting between the pressing member (410) and the handle mechanism (300), wherein the pressing member (410) is adapted to be pressed to a first position or to be reset to a second position under the rebound action of the second elastic member (420); A second rolling ball (430) is installed in the handle mechanism (300) and partially exposed outside the handle mechanism (300); The outer wall of the valve housing (210) is provided with two third recessed portions (2191) inwardly, and when the handle mechanism (300) is rotated to a closed position or an open position, the second rolling ball (430) corresponds to different third recessed portions (2191) respectively; When the pressing member (410) is in the first position, the second ball (430) corresponds to the fourth recess (411) to allow the handle mechanism (300) to turn to a closed position or an open position; when the handle mechanism (300) is in the closed position or the open position, the pressing member (410) is suitable for resetting to the second position and pressing the second ball (430) against the third recess (2191).

10. The double locking valve according to claim 9, characterized in that: The handle mechanism (300) comprises: A connecting member (310) is rotatably inserted into the valve housing (210), and has an inner end located inside the valve body (200) and an outer end located outside the valve body (200); A handle member (320), one end of which is connected to the outer end of the connecting member (310), and the other end of which extends in a direction perpendicular to the rotation axis of the connecting member (310), and the locking mechanism (400) is arranged at an end of the handle member (320) away from the connecting member (310); A locking bolt (330) connected between the inner end of the connecting member (310) and the valve core (220); The handle member (320) is not in contact with the outer wall of the valve housing (210), and the valve housing (210) is provided with a convex portion (2192) protruding toward the outer wall of the handle member (320), and the convex portion (2192) has a contact surface (2193) in contact with the second ball (430), and the third recessed portion (2191) is recessed inward from the contact surface (2193).

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