Subminiature high-pressure on-off valve
By designing an ultra-small high-pressure opening and closing valve that uses threaded connection of the moving iron core and valve core, combining adsorption components and elastic parts, the problem of high-pressure gas storage and supply in small underwater weapons is solved, and reliable gas control and system safety and reliability are achieved.
Patent Information
- Application Number
- CN202411807714.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-02-28
AI Technical Summary
In the energy supply system of ultra-small underwater weapons, an opening and closing valve that can be installed in a small gas reservoir and can adapt to high-pressure gas storage and supply is needed.
An ultra-small high-pressure opening and closing valve is designed, using a moving iron core and valve core to be connected by thread, combined with an integrated design of the solenoid frame and the housing, and the adsorption components and elastic parts are used to achieve rapid opening and closing of the valve core.
High-pressure gas control in small spaces is achieved, ensuring reliable gas release and supply, improving system safety and reliability, and reducing maintenance costs.
Smart Images
Figure CN119532441A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of on-off valve technology equipment, and in particular to an ultra-small high-pressure on-off valve. Background Art
[0002] In the configuration of energy supply systems for ultra-small underwater weapons, the need for on-off valves is raised. These systems are usually subject to space constraints, so the on-off valves need to be placed in small gas storage tanks and installed on the outlet pipelines of the storage tanks as the first checkpoint for high-pressure gas supply to ensure that the release and supply of gas can be reliably controlled during the operation of underwater weapons.
[0003] Unlike traditional energy storage and supply systems, this tank is also in a high-pressure state during long-term storage. This means that the gas in the tank is under high pressure and needs to be released quickly and reliably when needed to supply the energy system of underwater weapons.
[0004] Therefore, the on-off valve must be suitable for installation in the confined space of a small gas storage tank, and must also adapt to the high-pressure storage and supply of the working fluid. Summary of the invention
[0005] In order to take into account both the need for the on-off valve to be suitable for installation in a confined space within a small gas storage tank and the need to adapt to the high-pressure storage and supply of the working fluid, the present application provides an ultra-small high-pressure on-off valve.
[0006] The present application provides an ultra-small high-pressure on-off valve, which adopts the following technical solution:
[0007] A super-small high-pressure on-off valve comprises an on-off valve housing, a valve cavity is provided inside the on-off valve housing, a valve core is slidably connected inside the valve cavity, an outlet is provided at one end of the on-off valve housing, an inlet is provided at the other end of the on-off valve housing, the outlet is communicated with the valve cavity, the inlet is communicated with the valve cavity, one end of the valve core is opposite to the outlet, an elastic member is provided on the side of the valve core away from the outlet, the elastic member pushes the valve core to abut against the side wall of the outlet, an adsorption component is provided inside the valve cavity, and the adsorption component drives the valve core to move toward the side away from the outlet.
[0008] Optionally, the opening and closing valve housing includes a central housing portion, a side of the central housing portion close to the outlet is fixedly connected to an outlet joint, a side of the central housing portion close to the inlet is fixedly connected to an inlet joint, the outlet is located on the outlet joint, the inlet is located on the inlet joint, and a flow channel is opened on the adsorption assembly, and the flow channel communicates the inlet and the valve chamber.
[0009] Optionally, the adsorption assembly includes a static iron core, which is located on the side of the valve core facing away from the outlet, the static iron core is fixedly connected to the opening and closing valve housing, and a moving iron core is fixedly connected to the side of the valve core close to the static iron core, the elastic member is located between the static iron core and the moving iron core, and a coil is provided on the outside of the static iron core. When the coil is energized, the static iron core and the moving iron core are relatively adsorbed.
[0010] Optionally, a coil groove is opened on the side wall of the central shell part, the coil is located inside the coil groove, a protective cover is fixedly connected to the outer side of the coil groove, the protective cover is fixedly connected to the central shell part, a cable is arranged on one side of the coil, and the cable extends from the inside of the protective cover.
[0011] Optionally, the flow channel includes a first flow hole opened on the static iron core, the first flow hole is connected to the inlet, and a second flow hole is opened on the side wall of the moving iron core, and the second flow hole connects the upper part of the moving iron core and the lower part of the moving iron core.
[0012] Optionally, a spring fixing ring is fixedly connected to the moving iron core at a position close to the elastic member, one end of the elastic member is located in the spring fixing ring, and a spring fixing hole is opened on a side of the static iron core close to the elastic member, one end of the elastic member is located in the spring fixing hole, when the elastic member is in a free state, a distance is left between the bottom wall of the spring fixing ring and the static iron core; when the spring fixing ring abuts against the static iron core, the valve core is disengaged from the outlet.
[0013] Optionally, a vent hole is formed on the side wall of the spring fixing ring, and the vent hole connects the interior of the spring fixing ring with the valve cavity.
[0014] Optionally, the valve core includes a rubber portion close to the outlet and a connecting portion away from the outlet, the outlet includes a necking portion opposite to the rubber portion and an expanding portion opposite to the connecting portion, and the diameter of the rubber portion is larger than the diameter of the necking portion.
[0015] Optionally, the outer side wall of the connecting portion abuts and slides against the side wall of the opening and closing valve housing, and a flow hole is formed on the outer side wall of the connecting portion, and the flow hole connects the outer side of the rubber portion with the valve cavity.
[0016] Optionally, a side of the rubber portion close to the outlet is in a reduced diameter structure, and the diameter of the rubber portion gradually decreases from a side away from the outlet to a side close to the outlet.
[0017] In summary, the present application includes at least one of the following beneficial technical effects:
[0018] 1. The introduction of technical measures such as the integrated design of the outlet joint, the electromagnetic frame and the shell by connecting the moving iron core and the valve core together by threads not only solves the high and difficult requirements of the energy supply system for the small external installation size of the valve in principle, but also fundamentally solves the problem of long-term high-pressure storage of the working fluid. The high-pressure storage and supply or cut-off of the working fluid is reliably realized, ensuring the safety and reliability of the energy supply system. The rapid cut-off function of the working fluid also reduces the destructiveness to the power system caused by unknown factors. The on-off valve has a simple structure, can be used multiple times, and has good maintainability. It can effectively reduce the processing and maintenance costs of various components in the scientific research, production, and test stages. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of an ultra-small high-pressure on-off valve in an embodiment of the present application.
[0020] Figure 2 It is a structural schematic diagram of a static iron core and a moving iron core of an ultra-small high-pressure on-off valve in an embodiment of the present application.
[0021] Figure 3 It is a structural schematic diagram of a valve core of an ultra-small high-pressure on-off valve in an embodiment of the present application.
[0022] Figure 4 It is a top view of a valve core of an ultra-small high-pressure on-off valve in an embodiment of the present application.
[0023] Explanation of the reference numerals: 1. opening and closing valve housing; 11. central housing portion; 111. accommodating chamber; 112. coil slot; 113. coil; 114. protective cover; 115. cable; 12. inlet connector; 121. inlet; 13. outlet connector; 131. outlet; 132. necking portion; 133. flaring portion; 14. valve chamber; 15. valve core; 151. rubber portion; 152. connecting portion; 153. flow hole; 2. adsorption assembly; 21. static iron core; 211. protrusion; 212. first flow hole; 213. spring fixing hole; 22. moving iron core; 221. mounting hole; 222. second flow hole; 223. spring fixing ring; 224. exhaust hole; 3. spring. DETAILED DESCRIPTION
[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0026] The following is combined with Figure 1-4 This application is described in further detail.
[0027] The embodiment of the present application discloses an ultra-small high-pressure on-off valve. Figure 1 , Figure 2 An ultra-small high-pressure on-off valve includes an on-off valve housing 1, and the on-off valve housing 1 includes a central housing portion 11 located at a central position, one end of the central housing portion 11 is fixedly connected to an inlet joint 12, and the end of the central housing portion 11 away from the inlet joint 12 is fixedly connected to an outlet joint 13. The outer wall of the outlet joint 13 is designed in a 74° cone seal form, and the outlet 131 is connected by an external thread. An inlet 121 is provided on the inlet joint 12, and an outlet 131 is provided on the outlet joint 13. A valve cavity 14 is provided inside the central housing portion 11, one end of the valve cavity 14 is relatively connected to the inlet 121, and the other end of the valve cavity 14 is relatively connected, so that the medium can enter the inside of the valve cavity 14 from the inlet 121, and then be discharged from the outlet 131.
[0028] A valve core 15 is vertically arranged inside the chamber, and one end of the valve core 15 close to the outlet 131 is larger than the cross section of the outlet 131. When the valve core 15 abuts against the position of the outlet joint 13 relative to the outlet 131, the valve core 15 completely closes the outlet 131. When the valve core 15 is separated from the position of the outlet joint 13 relative to the outlet 131, the interior of the valve cavity 14 is relatively connected to the outlet 131. An adsorption component 2 is arranged on the side of the valve core 15 away from the outlet 131, and the adsorption component 2 drives the valve core 15 to move up and down. When in a free state, the valve core 15 abuts against the outlet 131. When the adsorption device is powered on, the valve core 15 is relatively separated from the outlet 131.
[0029] The top end of the inlet joint 12 extends into the interior of the central housing portion 11, and the side wall of the inlet joint 12 is fixedly connected to the bottom wall of the central housing portion 11. An accommodating chamber 111 is provided inside the central housing portion 11 at a position relative to the inlet joint 12. The interior of the accommodating chamber 111 is relatively connected to the interior of the valve chamber 14, and the diameter of the accommodating chamber 111 is larger than the diameter of the valve chamber 14, so that a fixed step is formed at the position of the central housing portion 11 relative to the accommodating chamber 111 and the valve chamber 14. The top end of the inlet joint 12 extends into the interior of the central housing portion 11, and a spacing is left between the top wall of the inlet joint 12 and the top wall of the fixed step, and this spacing is used to fix the adsorption component 2.
[0030] The outlet 131 includes a constricted portion 132 located on the side away from the inlet 121 and a flared portion 133 located on the side close to the inlet 121 . The interior of the constricted portion 132 is relatively connected to the interior of the flared portion 133 , and the diameter of the constricted portion 132 is smaller than the diameter of the flared portion 133 .
[0031] Reference Figure 1 , Figure 3 The valve core 15 includes a rubber portion 151 on the side close to the outlet 131. The rubber portion 151 is made of vulcanized rubber. The side of the rubber portion 151 close to the outlet 131 is a reduced diameter structure, and the diameter of the rubber portion 151 gradually decreases from the side close to the inlet 121 to the side close to the outlet 131. The diameter of the end of the rubber portion 151 close to the outlet 131 is smaller than the diameter of the outlet 131, and the diameter of the end of the rubber portion 151 close to the inlet 121 is larger than the diameter of the outlet 131. The outer wall of the rubber portion 151 located in the reduced diameter structure is inclined at 45°, and the outer wall of the reduced diameter structure is abutted against the step surface formed by the shrinking portion 132 and the expanding portion 133.
[0032] Reference Figure 3 , Figure 4 A connecting portion 152 is fixedly connected to the side of the rubber portion 151 facing away from the outlet 131, the outer wall of the connecting portion 152 abuts against the side wall of the flared portion 133 and is relatively slidably connected, and a flow hole 153 is opened on the outer wall of the connecting portion 152, the flow hole 153 is opened along the movement direction of the connecting portion 152, and the connecting hole completely penetrates the side wall of the connecting portion 152, so that the connecting hole relatively connects the space at the bottom end of the connecting portion 152 with the space at the top end of the connecting portion 152.
[0033] Reference Figure 1 , Figure 2 The adsorption assembly 2 includes a static iron core 21, the outer side wall of the static iron core 21 is relatively abutted against the central housing portion 11, the side wall of the bottom circumferential side of the static iron core 21 extends into the interior of the fixed step, and the static iron core 21 is pressed and fixed by the inlet joint 12 and the central housing portion 11, so that the static iron core 21 is fixed in the position inside the chamber. The bottom end of the static iron core 21 is fixedly connected with a protrusion 211, and a plurality of protrusions 211 are equidistantly arranged along the circumferential direction of the static iron core 21, and the top wall of the outlet joint 13 is fixedly connected with a groove at a position relative to the protrusion 211, and the protrusion 211 is located inside the groove, and then the static iron core 21 is positioned and installed through the relative cooperation between the protrusion 211 and the groove.
[0034] A first flow hole 212 is coaxially opened inside the static iron core 21 , and the first flow hole 212 completely penetrates the side wall of the static iron core 21 , and the bottom end of the first flow hole 212 is relatively connected to the inlet 121 , so that the medium enters from the inlet 121 and enters the interior of the chamber through the first flow hole 212 .
[0035] A moving iron core 22 is provided on the side of the static iron core 21 close to the valve core 15, and a mounting hole 221 is opened on the side of the moving iron core 22 close to the valve core 15, and the bottom end of the connecting portion 152 of the valve core 15 extends into the interior of the mounting hole 221, and the outer wall of the valve core 15 is threadedly connected to the moving iron core 22 at a position relative to the mounting hole 221, so that the moving iron core 22 can drive the valve core 15 to move synchronously with the moving iron core 22.
[0036] The outer wall of the moving iron core 22 is in contact with the inner wall of the central shell portion 11 and is relatively slidably connected. A second flow hole 222 is vertically opened on the outer wall of the moving iron core 22. The second flow hole 222 completely penetrates the side wall of the moving iron core 22, and the second flow hole 222 relatively connects the top of the moving iron core 22 and the bottom of the moving iron core 22, so that the medium located below the moving iron core 22 can enter the top of the moving iron core 22 through the second flow hole 153.
[0037] Then, when the moving iron core 22 drives the valve core 15 to move toward the side close to the outlet 131, the top of the valve core 15 abuts against the outlet 131, and the valve core 15 closes the outlet 131. When the moving iron core 22 drives the valve core 15 to move toward the side away from the outlet 131, the top of the valve core 15 is separated from the outlet 131, and the medium enters the first connecting hole of the static iron core 21 from the inlet 121, and then enters the inside of the chamber from the first connecting hole, and flows from the bottom of the automatic iron core 22 to the top of the moving iron core 22 through the second connecting hole in the chamber, and is discharged from the position of the outlet 131 above the moving iron core 22.
[0038] A spring fixing ring 223 is coaxially fixedly connected to the bottom end of the moving iron core 22. The spring fixing ring 223 is a hollow ring structure, and an exhaust hole 224 is horizontally opened on the side wall of the spring fixing ring 223. The exhaust hole 224 completely penetrates the side wall of the spring fixing ring 223, and the interior of the spring fixing ring 223 is relatively connected with the external chamber through the exhaust hole 224.
[0039] A spring 3 is vertically arranged inside the spring fixing ring 223, and the outer side wall of the spring 3 abuts against the inner side wall of the spring fixing ring 223. A spring fixing hole 213 is coaxially opened on the top wall of the static iron core 21 at a position relative to the spring 3, and the bottom end of the spring 3 extends into the spring fixing hole 213, and the diameter of the spring fixing hole 213 is smaller than the outer diameter of the spring fixing ring 223.
[0040] When the top end of the valve core 15 abuts against the position of the opening and closing valve housing 1 relative to the outlet 131, a distance is left between the bottom wall of the spring fixing ring 223 and the top wall of the static iron core 21. When the bottom wall of the spring fixing ring 223 abuts against the top wall of the static iron core 21, the top end of the valve core 15 disengages from the side wall of the outlet 131.
[0041] A coil slot 112 is provided at a position of the outer wall of the central housing portion 11 relative to the moving iron core 22, a coil 113 is wound inside the coil slot 112, and a protective cover 114 is provided at a position of the central housing portion 11 relative to the coil slot 112, the protective cover 114 closes the side wall of the coil slot 112, and the coil 113 is closed inside the coil slot 112. One end of the coil 113 is connected to a cable 115, which extends from the side wall of the protective cover 114 and is used to connect to an external power device for powering.
[0042] When the coil 113 is energized through the cable 115, the coil 113 is energized, controlling the moving iron core 22 to move downward, and the moving iron core 22 drives the valve core 15 to move toward the side away from the outlet 131, thereby causing the valve core 15 to separate from the outlet 131, and the on-off valve is opened. When the coil 113 is de-energized, the spring 3 pushes the moving iron core 22 to move toward the side close to the outlet 131, and the moving iron core 22 drives the valve core 15 to move toward the side close to the outlet 131, and the valve core 15 closes the outlet 131.
[0043] In this application, the term "plurality" means at least two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0044] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
Claims
1. An ultra-small high-pressure on-off valve, characterized in that: The invention comprises an opening and closing valve housing (1), wherein a valve cavity (14) is provided inside the opening and closing valve housing (1), and a valve core (15) is slidably connected inside the valve cavity (14), an outlet (131) is provided at one end of the opening and closing valve housing (1), and an inlet (121) is provided at the other end of the opening and closing valve housing (1), the outlet (131) is communicated with the valve cavity (14), and the inlet (121) is communicated with the valve cavity (14), one end of the valve core (15) is opposite to the outlet (131), an elastic member is provided on the side of the valve core (15) away from the outlet (131), and the elastic member pushes the valve core (15) to abut against the side wall of the outlet (131), and an adsorption component (2) is provided inside the valve cavity (14), and the adsorption component (2) drives the valve core (15) to move toward the side away from the outlet (131).
2. The ultra-small high-pressure on-off valve according to claim 1 is characterized in that: The on-off valve housing (1) comprises a central housing portion (11), a side of the central housing portion (11) close to the outlet (131) being fixedly connected to an outlet joint (13), a side of the central housing portion (11) close to the inlet (121) being fixedly connected to an inlet joint (12), the outlet (131) being located on the outlet joint (13), the inlet (121) being located on the inlet joint (12), and a flow channel being provided on the adsorption component (2), the flow channel communicating the inlet (121) with the valve chamber (14).
3. The ultra-small high-pressure on-off valve according to claim 2 is characterized in that: The adsorption component (2) includes a static iron core (21), the static iron core (21) is located on the side of the valve core (15) away from the outlet (131), the static iron core (21) is fixedly connected to the opening and closing valve housing (1), and a moving iron core (22) is fixedly connected to the side of the valve core (15) close to the static iron core (21), the elastic member is located between the static iron core (21) and the moving iron core (22), and a coil (113) is arranged on the outside of the static iron core (21), and when the coil (113) is energized, the static iron core (21) and the moving iron core (22) are relatively adsorbed.
4. The ultra-small high-pressure on-off valve according to claim 3 is characterized in that: A coil groove (112) is provided on the side wall of the central housing portion (11), the coil (113) is located inside the coil groove (112), a protective cover (114) is fixedly connected to the outer side of the coil groove (112), the protective cover (114) is fixedly connected to the central housing portion (11), a cable (115) is provided on one side of the coil (113), and the cable (115) extends from the inside of the protective cover (114).
5. The ultra-small high-pressure on-off valve according to claim 3 is characterized in that: The flow channel includes a first flow hole (212) opened on the static iron core (21), the first flow hole (212) is connected to the inlet (121), and a second flow hole (222) is opened on the side wall of the moving iron core (22), and the second flow hole (222) connects the upper part of the moving iron core (22) and the lower part of the moving iron core (22).
6. The ultra-small high-pressure on-off valve according to claim 3 is characterized in that: A spring fixing ring (223) is fixedly connected to the movable iron core (22) at a position close to the elastic member, one end of the elastic member is located in the spring fixing ring (223), and a spring fixing hole (213) is opened on one side of the stationary iron core (21) close to the elastic member, one end of the elastic member is located in the spring fixing hole (213). When the elastic member is in a free state, a distance is left between the bottom wall of the spring fixing ring (223) and the stationary iron core (21); when the spring fixing ring (223) is in contact with the stationary iron core (21), the valve core (15) is separated from the outlet (131).
7. The ultra-small high-pressure on-off valve according to claim 6 is characterized in that: The side wall of the spring fixing ring (223) is provided with an exhaust hole (224), and the exhaust hole (224) connects the interior of the spring fixing ring (223) with the valve cavity (14).
8. The ultra-small high-pressure on-off valve according to claim 1 is characterized in that: The valve core (15) comprises a rubber portion (151) on a side close to the outlet (131) and a connecting portion (152) on a side away from the outlet (131); the outlet (131) comprises a constricted portion (132) opposite to the rubber portion (151) and a flared portion (133) opposite to the connecting portion (152); the diameter of the rubber portion (151) is greater than the diameter of the constricted portion (132).
9. The ultra-small high-pressure on-off valve according to claim 8, characterized in that: The outer wall of the connecting portion (152) slides in contact with the side wall of the opening and closing valve housing (1), and a flow hole (153) is provided on the outer wall of the connecting portion (152). The flow hole (153) connects the outer side of the rubber portion (151) with the valve cavity (14).
10. The ultra-small high-pressure on-off valve according to claim 8, characterized in that: The side of the rubber portion (151) close to the outlet (131) is in a reduced diameter structure, and the diameter of the rubber portion (151) gradually decreases from the side away from the outlet (131) to the side close to the outlet (131).