Safety valve capable of quickly releasing pressure

Abstract

The utility model discloses a quick pressure relief safety valve, which relates to the technical field of safety valves and comprises a mounting base, the outer wall of the top end of the mounting base is fixedly connected with a fixing seat, the top of the outer wall of the fixing seat is fixedly connected with a guide sleeve, the top end of the outer wall of the guide sleeve is fixedly connected with an upper cover, and two sides of the inner wall of the guide sleeve are fixedly connected with a plurality of auxiliary guide rails. The upper end and the lower end of the outer wall of the auxiliary guide rail are fixedly connected with the outer wall of the bottom end of the upper cover and the outer wall of the top end of the fixing base respectively, and the upper end and the lower end of the outer wall of the auxiliary guide rail are slidably connected with a limiting plate and a sliding block respectively. The sliding block can be effectively guaranteed not to displace or incline due to external force in the operation process, the valve is prevented from being opened or closed outside, in addition, after the pressure of gas is reduced to a certain value, the reset spring enables the sliding block to move downwards and seals the exhaust hole through the elasticity of the reset spring, and the sealing failure caused by the problem of the installation angle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a safety valve for rapid pressure relief. Background Art

[0002] Pressure relief valves are commonly used in industries such as petroleum, chemical engineering, metallurgy, power generation, and shipbuilding. Their primary function is to protect systems from damage caused by excessive pressure. When the pressure within the system exceeds a preset value, the valve automatically opens, releasing the excess pressure and preventing accidents caused by excessive pressure.

[0003] After long-term use, the existing pressure relief safety valves have the particularity of their internal structure. Many industry standards and specifications require that they must be installed vertically during installation to avoid accidental opening or closing of the valve. This results in the traditional device being installed at an improper angle during installation, which may cause the safety valve to shift or tilt during operation, thereby affecting its sealing performance and reliability, and even causing safety accidents. Utility Model Content

[0004] The purpose of the utility model is to remedy the deficiencies of the prior art and to provide a safety valve with rapid pressure relief.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a safety valve for rapid pressure relief, comprising a mounting base, the top outer wall of the mounting base is fixedly connected to a fixing seat, and the top of the outer wall of the fixing seat is fixedly connected to a guide sleeve, the top of the outer wall of the guide sleeve is fixedly connected to an upper cover, and both sides of the inner wall of the guide sleeve are fixedly connected to multiple auxiliary guide rails, the upper and lower ends of the outer wall of the auxiliary guide rails are respectively fixedly connected to the outer wall of the bottom end of the upper cover and the outer wall of the top end of the fixing seat, and the upper and lower ends of the outer wall of the auxiliary guide rails are respectively slidably connected to a limit plate and a slider, the outer wall of the upper cover is fixedly connected to a sleeve, and the outer wall of the bottom end of the upper cover and the outer wall of the top end of the limit plate are fitted together, the inner center of the upper cover is fixedly connected to a movable shaft, and the inner center of the movable shaft is rotatably connected to a screw, the outer wall of the top end of the screw is fixedly connected to an adjusting knob, and the bottom of the outer wall of the screw is located at the inner center of the limit plate.

[0006] As mentioned above, the outer wall of the bottom end of the auxiliary guide rail is connected to one side of the top surface of the slider, and the inner side of the slider is slidably connected to the bottom end of the outer wall of the auxiliary guide rail. A sealing gasket is fixedly connected to the center of the bottom surface of the slider, and the edge of the bottom surface of the sealing gasket is tightly fitted with the top of the inner wall of the fixed seat.

[0007] As mentioned above, the top outer wall of the fixed seat is fixedly connected with multiple strong magnetic blocks, and the strong magnetic blocks and the slider are adsorbed on each other. The top outer wall of the strong magnetic block is connected to one side of the bottom surface of the slider, and the outer wall of the strong magnetic block is slidably connected to the inner side of the slider.

[0008] As mentioned above, a group of return springs are fixedly connected on both sides of the limit plate, and the outer wall of the bottom end of the return spring is fixedly connected to the bottom end of the inner wall of the slider. A group of relative exhaust holes are opened on both sides of the inner wall of the guide sleeve, and multiple exhaust holes are located on both sides of the outer wall of the slider at the same time.

[0009] As mentioned above, the center of the outer wall of the screw is connected to the center of the top surface of the movable shaft through, and the center of the outer wall of the screw is connected to the inner center of the movable shaft in rotation.

[0010] As mentioned above, the outer wall at the top end of the auxiliary guide rail is connected to one side of the bottom surface of the limiting plate through-connection, and the inner side of the limiting plate is connected to the top end of the outer wall of the auxiliary guide rail in a sliding manner.

[0011] As mentioned above, the inner center of the limit plate is fixedly connected with a threaded component, and the threaded component is located at the bottom of the outer wall of the screw. The outer wall of the bottom end of the screw is connected through the center of the top surface of the threaded component, and the bottom of the outer wall of the screw is rotatably connected with the inner center of the threaded component through a thread.

[0012] Compared with the existing technology, this rapid pressure relief safety valve has the following beneficial effects:

[0013] 1. In the actual working process of the present invention, high-pressure gas will be pushed from the opening in the center of the mounting base and the fixing seat toward the center of the sealing gasket and the bottom surface of the slider. When the pressure of the compressed air exceeds the magnetic force of the strong magnetic block on the slider, the slider will be pushed open, forcing the slider to move along the outer wall of the auxiliary guide rail toward the top of the guide sleeve, and at the same time compressing the return spring, so that the slider drives the sealing gasket to move up and exhaust through the exhaust hole. When the pressure of the high-pressure gas is released and the gas pressure drops to a certain value, the return spring moves the slider down and seals the exhaust hole through its own elasticity. Furthermore, through the adsorption force of the strong magnetic block on the slider and the restriction of the auxiliary guide rail on the movement trajectory of the slider, it can effectively ensure that the slider will not be displaced or tilted due to external force during operation, thereby avoiding unexpected opening or closing of the valve. In addition, when the gas pressure drops to a certain value, the return spring moves the slider down and seals the exhaust hole through its own elasticity, thereby avoiding sealing failure due to installation angle problems.

[0014] 2. In actual use of the present invention, by rotating the adjusting knob, the screw is driven to rotate in the center of the movable shaft. As the screw rotates, the limit plate and the threaded component in its inner center will gradually move toward the bottom end of the guide sleeve along the outer wall of the auxiliary guide rail under the action of the screw outer wall thread and the auxiliary guide rail. Then, by changing the height of the limit plate and the distance between the limit plate and the slider, the deformation of the reset spring is changed to achieve the effect of adjusting the return force of the adjustment slider.

[0015] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cutaway three-dimensional structure of the utility model;

[0018] Figure 3 This is a partially cutaway three-dimensional structural diagram of the mounting base, fixing seat, slider, limiting plate and guide sleeve of the utility model;

[0019] Figure 4 It is a schematic diagram of the partially cutaway three-dimensional structure of the upper cover, the limiting plate and the movable shaft, and the partially disassembled auxiliary guide rail of the utility model.

[0020] In the figure: 1. Mounting base; 2. Fixed seat; 201. Guide sleeve; 202. Upper cover; 203. Auxiliary guide rail; 204. Slider; 205. Sheath; 206. Sealing gasket; 207. Strong magnetic block; 208. Return spring; 3. Limit plate; 209. Exhaust hole; 301. Movable shaft; 302. Screw; 303. Adjustment knob; 304. Threaded assembly. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-4As shown, the utility model provides a technical solution: a safety valve for rapid pressure relief, comprising a mounting base 1, a fixing base 2 fixedly connected to the top outer wall of the mounting base 1, and a guide sleeve 201 fixedly connected to the top outer wall of the fixing base 2, a top outer wall of the guide sleeve 201 fixedly connected to the upper cover 202, and a plurality of auxiliary guide rails 203 fixedly connected to both sides of the inner wall of the guide sleeve 201, and the upper and lower ends of the outer wall of the auxiliary guide rails 203 are respectively fixedly connected to the outer wall of the bottom end of the upper cover 202 and the outer wall of the top of the fixing base 2 , and the upper and lower ends of the outer wall of the auxiliary guide rail 203 are respectively slidably connected to the limit plate 3 and the slider 204, the outer wall of the upper cover 202 is fixedly connected to the sheath 205, and the outer wall of the bottom end of the upper cover 202 is in contact with the outer wall of the top end of the limit plate 3, the inner center of the upper cover 202 is fixedly connected to a movable shaft 301, and the inner center of the movable shaft 301 is rotatably connected to a screw 302, the outer wall of the top end of the screw 302 is fixedly connected to the adjusting knob 303, and the bottom of the outer wall of the screw 302 is located at the inner center of the limit plate 3.

[0023] During operation, high-pressure gas pushes the sealing gasket 206 and the slider 204 from the mounting base 1 and the fixing base 2. When the pressure exceeds the magnetic force of the strong magnetic block 207, the slider 204 moves along the auxiliary guide rail 203, compresses the reset spring 208, and exhausts gas through the exhaust hole 209. After the pressure is reduced, the reset spring 208 moves the slider 204 down to seal the exhaust hole 209. The strong magnetic block 207 and the auxiliary guide rail 203 ensure that the slider 204 does not move or tilt, avoiding misoperation of the valve. The adjusting knob 303 drives the screw 302 to rotate, adjusts the height of the limit plate 3 and the distance from the slider 204, changes the deformation of the reset spring 208, and realizes the adjustment of the return force.

[0024] like Figure 1-3 As shown, the outer wall of the bottom end of the auxiliary guide rail 203 is connected to one side of the top surface of the slider 204, and the inner side of the slider 204 is slidably connected to the bottom end of the outer wall of the auxiliary guide rail 203. The auxiliary guide rail 203 can effectively limit the moving trajectory of the slider 204.

[0025] A sealing gasket 206 is fixedly connected to the center of the bottom surface of the slider 204, and the bottom edge of the sealing gasket 206 is tightly fitted with the top of the inner wall of the fixing seat 2. By arranging the sealing gasket 206 between the slider 204 and the fixing seat 2, the airtightness of the device when closed can be effectively ensured.

[0026] The top outer wall of the fixed seat 2 is fixedly connected with multiple strong magnetic blocks 207, and the strong magnetic blocks 207 and the slider 204 are adsorbed on each other. The top outer wall of the strong magnetic block 207 is connected to one side of the bottom surface of the slider 204, and the outer wall of the strong magnetic block 207 is slidably connected to the inner side of the slider 204. By setting the strong magnetic block 207 on the top surface of the fixed seat 2, it can strongly adsorb the slider 204 through its own magnetism.

[0027] A set of return springs 208 are fixedly connected on both sides of the limit plate 3, and the outer wall of the bottom end of the return spring 208 is fixedly connected to the bottom end of the inner wall of the slider 204. By setting the return spring 208 between the slider 204 and the limit plate 3, the automatic reset of the slider 204 can be achieved.

[0028] A group of opposite exhaust holes 209 are provided on both sides of the inner wall of the guide sleeve 201, and multiple exhaust holes 209 are also located on both sides of the outer wall of the slider 204. The exhaust holes 209 are set on both sides of the outer wall of the slider 204 so that after the slider 204 moves upward, high-pressure gas can be discharged through the exhaust holes 209.

[0029] like Figure 1 、 Figure 2 and Figure 4 As shown, the center of the outer wall of the screw 302 is connected to the center of the top surface of the movable shaft 301 through and connected to the inner center of the movable shaft 301 in rotation, so that the screw 302 can smoothly rotate in the inner center of the upper cover 202.

[0030] The top outer wall of the auxiliary guide rail 203 is connected to one side of the bottom surface of the limiting plate 3, and the inner side of the limiting plate 3 is slidably connected to the top of the outer wall of the auxiliary guide rail 203. The auxiliary guide rail 203 can effectively limit the movement trajectory of the limiting plate 3.

[0031] A threaded assembly 304 is fixedly connected to the inner center of the limiting plate 3, and the threaded assembly 304 is located at the bottom of the outer wall of the screw 302. The outer wall of the bottom end of the screw 302 is connected through the center of the top surface of the threaded assembly 304, and the bottom of the outer wall of the screw 302 is rotatably connected to the inner center of the threaded assembly 304 through a thread, so that the screw 302 can push the threaded assembly 304 and the limiting plate 3 to move along the outer wall of the auxiliary guide rail 203 through its outer wall thread.

[0032] Working principle: The moving trajectory of the slider 204 can be effectively restricted by the auxiliary guide rail 203, and the airtightness of the device when closed can be effectively ensured by arranging a sealing gasket 206 between the slider 204 and the fixed seat 2. By arranging the strong magnetic block 207 on the top surface of the fixed seat 2, it can strongly adsorb the slider 204 through its own magnetism. By arranging the reset spring 208 between the slider 204 and the limit plate 3, the automatic reset of the slider 204 can be achieved. The exhaust holes 209 are set on both sides of the outer wall of the slider 204, so that after the slider 204 moves up, the high-pressure gas can be discharged through the exhaust holes 209, so that the screw 302 can rotate smoothly in the center of the upper cover 202. The moving trajectory of the limit plate 3 can be effectively restricted by the auxiliary guide rail 203, so that the screw 302 can push the threaded assembly 304 and the limit plate 3 to move along the outer wall of the auxiliary guide rail 203 through its outer wall thread.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick pressure relief safety valve, comprising a mounting base (1), characterized in that: The top outer wall of the mounting base (1) is fixedly connected to the fixing base (2), and the top of the outer wall of the fixing base (2) is fixedly connected to the guide sleeve (201), the top outer wall of the guide sleeve (201) is fixedly connected to the upper cover (202), and both sides of the inner wall of the guide sleeve (201) are fixedly connected to a plurality of auxiliary guide rails (203), the upper and lower ends of the outer wall of the auxiliary guide rails (203) are respectively fixedly connected to the outer wall of the bottom end of the upper cover (202) and the outer wall of the top of the fixing base (2), and the upper and lower ends of the outer wall of the auxiliary guide rails (203) are respectively slidably connected to the outer wall of the auxiliary guide rails (203). The limit plate (3) and the slider (204) are connected, the outer wall of the upper cover (202) is fixedly connected with a protective sleeve (205), and the outer wall of the bottom end of the upper cover (202) is in contact with the outer wall of the top end of the limit plate (3), the inner center of the upper cover (202) is fixedly connected with a movable shaft (301), and the inner center of the movable shaft (301) is rotatably connected with a screw (302), the outer wall of the top end of the screw (302) is fixedly connected with an adjusting knob (303), and the bottom of the outer wall of the screw (302) is located at the inner center of the limit plate (3).

2. A quick pressure relief safety valve according to claim 1, characterized in that: The outer wall of the bottom end of the auxiliary guide rail (203) is connected to one side of the top surface of the slider (204), and the inner side of the slider (204) is slidably connected to the bottom end of the outer wall of the auxiliary guide rail (203). A sealing gasket (206) is fixedly connected to the center of the bottom surface of the slider (204), and the bottom edge of the sealing gasket (206) is tightly fitted with the top end of the inner wall of the fixing seat (2).

3. A quick pressure relief safety valve according to claim 2, characterized in that: The top outer wall of the fixing seat (2) is fixedly connected with a plurality of strong magnetic blocks (207), and the strong magnetic blocks (207) and the slider (204) are mutually attracted, the top outer wall of the strong magnetic block (207) is connected to one side of the bottom surface of the slider (204) through, and the outer wall of the strong magnetic block (207) is connected to the inner side of the slider (204) in a sliding manner.

4. A quick pressure relief safety valve according to claim 1, characterized in that: A group of return springs (208) are fixedly connected to both sides of the interior of the limit plate (3), and the outer wall of the bottom end of the return spring (208) is fixedly connected to the bottom end of the inner wall of the slider (204). A group of opposite exhaust holes (209) are opened on both sides of the inner wall of the guide sleeve (201), and multiple exhaust holes (209) are simultaneously located on both sides of the outer wall of the slider (204).

5. The rapid pressure relief safety valve according to claim 1, characterized in that: The center of the outer wall of the screw rod (302) is connected to the center of the top surface of the movable rotating shaft (301) through and through, and the center of the outer wall of the screw rod (302) is connected to the inner center of the movable rotating shaft (301) in a rotational manner.

6. A quick pressure relief safety valve according to claim 5, characterized in that: The outer wall at the top end of the auxiliary guide rail (203) is connected to one side of the bottom surface of the limiting plate (3) through-hole, and the inner side of the limiting plate (3) is connected to the top end of the outer wall of the auxiliary guide rail (203) in a sliding manner.

7. A quick pressure relief safety valve according to claim 6, characterized in that: The inner center of the limiting plate (3) is fixedly connected with a threaded assembly (304), and the threaded assembly (304) is located at the bottom of the outer wall of the screw rod (302). The outer wall of the bottom end of the screw rod (302) is connected to the center of the top surface of the threaded assembly (304) through the threaded assembly (304), and the bottom of the outer wall of the screw rod (302) is rotatably connected to the inner center of the threaded assembly (304) through a thread.

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