An electric valve with a buffer pressure relief mechanism
By designing a buffer and pressure relief mechanism in the electric valve, the problem of increased pressure caused by water flow velocity is solved, automatic pressure relief is achieved, and the efficiency and safety of the electric valve are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NATIONAL STANDARD VALVE (GUANGDONG) CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-23
AI Technical Summary
Existing electric valves experience increased internal pressure when the water flow rate is high, affecting their use and requiring manual pressure relief, which is inconvenient.
A buffer and pressure relief mechanism was designed, including a filter plate, a connecting ring, an adjustment component, and a pressure relief component. Automatic pressure relief is achieved by adjusting the water flow rate and automatically releasing pressure, using the cooperation of the guide pipe and the pressure relief component.
It effectively controls the water flow rate, improves the efficiency of electric valves, and reduces manual intervention through an automatic pressure relief mechanism, thereby improving safety and service life.
Smart Images

Figure CN224397207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric valve technology, specifically to an electric valve with a buffer pressure relief mechanism. Background Technology
[0002] Electric valves typically consist of an electric actuator and a valve body. They use electrical energy to power the electric actuator, which in turn drives the valve to open or close. This allows for the control of the flow of media in the pipeline. Electric valves can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, slurry, oil, liquid metals, and radioactive media.
[0003] An electric valve with a buffer pressure relief mechanism is disclosed in publication number CN220354515U. It includes an electric housing, with arc-shaped plates fixedly connected to both sides of the housing. Bolts are movably connected inside the arc-shaped plates. A mounting plate is movably connected to the lower end of the electric housing. Telescopic rods are provided on both sides of the mounting plate, and springs are sleeved on the outside of the telescopic rods. A valve body is located at the lower end of the electric housing, and a connecting plate is fixedly connected to the upper end of the valve body. The advantages of this invention are: the electric housing and valve body can be quickly disassembled and assembled using bolts, arc-shaped plates, connecting plates, telescopic rods, springs, a fixing frame, and locking holes, allowing for independent maintenance of both the electric housing and valve body, and increasing the maintenance speed of both; the water pressure inside the valve body can be monitored and managed using a pressure gauge, pressure relief pipe, and control valve, thereby preventing excessive water pressure from damaging the valve body and increasing its service life.
[0004] However, during the use of electric valves, water will flow through them. When the water flow rate is fast, the pressure inside the electric valve will increase, which will affect the use of the electric valve. When the pressure inside the electric valve is too high, it is necessary for personnel to manually depressurize the electric valve. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an electric valve with a buffer pressure relief mechanism, which can effectively solve the problem that when water flows through the electric valve during use, the pressure inside the electric valve will increase when the water flow rate is fast, which will affect the use of the electric valve and require manual pressure relief when the pressure inside the electric valve is too high.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides an electric valve with a buffer pressure relief mechanism, including an electric valve, on both sides of the inside of the electric valve are provided with sliding grooves, a filter plate is slidably connected inside the sliding grooves, a connecting ring is fixedly installed in the middle of the surface of the electric valve, mounting plates are provided on both sides of the surface of the connecting ring, an adjustment component is provided on the surface of the mounting plate, and a guide tube is fixedly installed on both sides of the surface of the electric valve, with a pressure relief component inside the guide tube.
[0008] The adjustment assembly includes a threaded rod rotatably connected to the center of the mounting plate surface, a movable plate threadedly connected to the surface of the threaded rod, an adjustment plate installed between the movable plates, a through groove formed in the center of the surface of the connecting ring, the size of the through groove being adapted to the size of the adjustment plate, and a sealing ring provided at the contact point between the connecting ring and the adjustment plate.
[0009] A threaded groove is formed in the middle of the surface of the movable plate, and a threaded rod is threadedly connected inside the threaded groove.
[0010] The pressure relief assembly includes a positioning plate fixedly installed inside the guide tube. A telescopic rod is fixedly installed at the center of the bottom of the positioning plate. A spring is sleeved on the surface of the telescopic rod. A pull rod passes through the center of the surface of the telescopic rod. A sealing plate is fixedly installed at one end of the pull rod, and a converging cover is fixedly installed at the other end of the pull rod.
[0011] An installation groove is provided in the middle of the surface of the sealing plate, and a limit block is fixedly installed inside the installation groove. An anti-slip pad to improve comfort is adhered to the surface of the limit block.
[0012] The diameter of the sealing plate is matched with the diameter of the inside of the guide tube, and the sealing plate moves up and down inside the guide tube.
[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:
[0014] By utilizing an electric valve, filter plate, connecting ring, mounting plate, and adjustment components, during operation, water flows through the electric valve, filter plate, and into the connecting ring. Subsequently, personnel adjust the adjustment via the mounting plate to different vertical positions, causing the water flow rate to change as it passes through the connecting ring, thus improving the efficiency of controlling the water flow rate.
[0015] By utilizing the guide tube and pressure relief component, when the internal pressure of the electric valve becomes too high during use, it will impact the guide tube. After the guide tube is impacted by the pressure, it will drive the pressure relief component to move. When the pressure relief component moves upward, the internal pressure of the electric valve will be released. When the internal pressure decreases, the pressure relief component will close, thus improving the efficiency of pressure relief for the electric valve. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the pressure relief component of this utility model.
[0021] Reference numerals: 1. Electric valve; 2. Filter plate; 3. Connecting ring; 4. Mounting plate; 5. Adjusting assembly; 51. Threaded rod; 52. Moving plate; 53. Adjusting plate; 6. Guide tube; 7. Pressure relief assembly; 71. Positioning plate; 72. Telescopic rod; 73. Spring; 74. Pull rod; 75. Sealing plate; 76. Converging cover. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0023] The present invention will be further described below with reference to the embodiments.
[0024] Example: Refer to Figures 1 to 4 An electric valve with a buffer pressure relief mechanism includes an electric valve 1. Sliding grooves are provided on both sides of the electric valve 1. A filter plate 2 is slidably connected inside the sliding groove. A connecting ring 3 is fixedly installed in the middle of the surface of the electric valve 1. Mounting plates 4 are provided on both sides of the surface of the connecting ring 3. Adjustment components 5 are provided on the surface of the mounting plates 4. Guide tubes 6 are fixedly installed on both sides of the surface of the electric valve 1. Pressure relief components 7 are provided inside the guide tubes 6.
[0025] The adjusting assembly 5 includes a threaded rod 51 rotatably connected to the middle of the surface of the mounting plate 4. A movable plate 52 is threadedly connected to the surface of the threaded rod 51. An adjusting plate 53 is installed between the movable plates 52. A through groove is opened in the middle of the surface of the connecting ring 3. The size of the through groove is adapted to the size of the adjusting plate 53. A sealing ring is provided at the contact point between the connecting ring 3 and the adjusting plate 53. A threaded groove is opened in the middle of the surface of the movable plate 52. The threaded rod 51 is threadedly connected inside the threaded groove.
[0026] When it is necessary to control the water flow rate inside the electric valve 1, the operator will rotate the threaded rod 51 through the mounting plate 4. When the threaded rod 51 rotates, it will drive the moving plate 52 to move up and down. When the moving plate 52 moves up and down, it will move the adjusting plate 53 between the moving plates 52 up and down. When the adjusting plate 53 moves, the circular spacing inside the connecting ring 3 will change accordingly. When the spacing is smaller, the water flow rate increases, and when the spacing is larger, the water flow rate decreases.
[0027] The pressure relief assembly 7 includes a positioning plate 71 fixedly installed inside the guide tube 6. A telescopic rod 72 is fixedly installed at the center of the bottom of the positioning plate 71. A spring 73 is sleeved on the surface of the telescopic rod 72. A pull rod 74 passes through the center of the surface of the telescopic rod 72. A sealing plate 75 is fixedly installed at one end of the pull rod 74. A converging cover 76 is fixedly installed at the other end of the pull rod 74. An installation groove is opened in the center of the surface of the sealing plate 75. A limit block is fixedly installed inside the installation groove. An anti-slip pad to improve comfort is adhered to the surface of the limit block. The diameter of the sealing plate 75 is adapted to the diameter inside the guide tube 6. The sealing plate 75 moves up and down inside the guide tube 6.
[0028] When the internal pressure of the electric valve 1 is too high, the pressure will impact the converging shroud 76 through the guide tube 6. When the converging shroud 76 is impacted, it will squeeze the sealing plate 75 through the pull rod 74. The telescopic rod 72 and spring 73 on the back of the converging shroud 76 will also be squeezed due to the impact. The sealing plate 75 will move up and down in different positions depending on the pressure. Gas will flow out through the gap between the guide tube 6 and the sealing plate 75. When the internal pressure of the electric valve 1 decreases, the spring 73 on the telescopic rod 72 will rebound due to its characteristics, driving the converging shroud 76 at one end of the telescopic rod 72 to move. The converging shroud 76 will drive the sealing plate 75 to reset through the pull rod 74, and the sealing plate 75 will then seal the guide tube 6.
[0029] Working principle: Firstly, when controlling the water flow rate inside the electric valve 1, the operator rotates the threaded rod 51 via the mounting plate 4. This rotation of the threaded rod 51 causes the moving plate 52 to move up and down. As the moving plate 52 moves, the adjusting plate 53 located between it also moves up and down. When the adjusting plate 53 moves, the circular spacing inside the connecting ring 3 changes accordingly. When the spacing decreases, the water flow rate increases; when the spacing increases, the water flow rate decreases. Subsequently, if the pressure inside the electric valve 1 becomes too high, the pressure will be released through the guide pipe. The converging shroud 76 is impacted. When the converging shroud 76 is impacted, the sealing plate 75 will be squeezed through the pull rod 74. The telescopic rod 72 and spring 73 on the back of the converging shroud 76 will also be squeezed due to the impact. The sealing plate 75 moves up and down in different positions depending on the pressure. Gas flows out through the gap between the guide tube and the sealing plate 75. When the pressure inside the electric valve 1 decreases, the spring 73 on the telescopic rod 72 will rebound due to its characteristics, driving the converging shroud 76 at one end of the telescopic rod 72 to move. The converging shroud 76 drives the sealing plate 75 to reset through the pull rod 74, and the sealing plate 75 then seals the guide tube 6.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. An electrically operated valve with a cushioned pressure relief mechanism, comprising an electrically operated valve (1), characterized in that: The electric valve (1) has sliding grooves on both sides inside, and a filter plate (2) is slidably connected inside the sliding grooves. A connecting ring (3) is fixedly installed in the middle of the surface of the electric valve (1). Mounting plates (4) are provided on both sides of the surface of the connecting ring (3). An adjusting component (5) is provided on the surface of the mounting plate (4). A guide tube (6) is fixedly installed on both sides of the surface of the electric valve (1). A pressure relief component (7) is provided inside the guide tube (6). The adjustment assembly (5) includes a threaded rod (51) rotatably connected to the middle of the surface of the mounting plate (4). A movable plate (52) is threadedly connected to the surface of the threaded rod (51). An adjustment plate (53) is installed between the movable plates (52). A through groove is provided in the middle of the surface of the connecting ring (3). The size of the through groove is adapted to the size of the adjustment plate (53). A sealing ring is provided at the contact point between the connecting ring (3) and the adjustment plate (53).
2. An electrically operated valve with a cushioned pressure relief mechanism according to claim 1, wherein, A threaded groove is provided in the middle of the surface of the movable plate (52), and a threaded rod (51) is threadedly connected inside the threaded groove.
3. An electrically operated valve with a cushioned pressure relief mechanism as defined in claim 1, wherein, The pressure relief assembly (7) includes a positioning plate (71) fixedly installed inside the guide tube (6). A telescopic rod (72) is fixedly installed at the middle of the bottom of the positioning plate (71). A spring (73) is sleeved on the surface of the telescopic rod (72). A pull rod (74) passes through the middle of the surface of the telescopic rod (72). A sealing plate (75) is fixedly installed at one end of the pull rod (74). A converging cover (76) is fixedly installed at the other end of the pull rod (74).
4. An electrically operated valve with a cushioned pressure relief mechanism as defined in claim 3, wherein, The sealing plate (75) has an installation groove in the middle of its surface. A limit block is fixedly installed inside the installation groove, and an anti-slip pad to improve comfort is adhered to the surface of the limit block.
5. The electrically powered valve with a cushioned pressure relief mechanism of claim 3, wherein, The diameter of the sealing plate (75) is matched with the diameter inside the guide tube (6), and the sealing plate (75) moves up and down inside the guide tube (6).