Pressure relief structure for high-sealing leakage-proof gas tank

Abstract

The pressure relief structure comprises an upper cover and a tank body, the upper cover is fixedly connected with a pressure relief device, a blocking plate is installed in the pressure relief device, the blocking plate is connected with a blocking frame in a sliding mode, the blocking frame is connected with a spring a in a surrounding mode, the blocking plate is provided with a telescopic pipe, the telescopic pipe is provided with a moving plate b, and the moving plate b is provided with a spring. A moving plate b is arranged in the tank body, the moving plate b is slidably connected with a sliding frame, the moving plate b is slidably connected with a sliding block, the sliding block is rotatably connected with a rotating plate, the rotating plate is rotatably connected with a moving plate a, the tank body comprises a shell, aerogel, reinforcing cloth, polyurethane, carbon fibers and an inner container, and the shell is located on the outer side of the aerogel. When the pressure in the tank body is high, the moving plate a and the moving plate b are pushed to move upwards in sequence until the sliding frame is attached to the blocking frame, the air outlet and the air hole are exposed, air can be released outwards for pressure relief, and the service life is long; the carbon fiber, the polyurethane, the reinforcing cloth and the aerogel are matched to achieve a good explosion-proof effect.

Description

Technical Field

[0001] The utility model relates to a pressure relief structure for a gas cylinder with high sealing and leakage prevention, in particular to a pressure relief structure for a gas cylinder with high sealing and leakage prevention, belonging to the technical field of gas cylinders. Background Art

[0002] A gas tank is a special container that is usually used to hold gases, such as air, oxygen, hydrogen, etc. Gas tanks are also often used to make tools and equipment such as portable barbecue grills, paint sprayers, and air pumps. These devices generally require the ability to store and release gas in small gas cylinders to achieve the desired effect.

[0003] The gas cylinder of the prior art has the following disadvantages: 1. When the pressure inside the gas cylinder is relatively high, the pressure is often relieved through the pressure relief structure. A single spring is usually provided in the pressure relief structure. After repeated use, the spring is prone to aging, the sealing property is weakened, and the service life of the pressure relief structure is short; 2. The gas cylinder is often filled with high-pressure gas, and the gas cylinder requires better explosion-proof capability. If the explosion-proof capability is weak, the fragments of the gas cylinder will fly out and endanger people's safety. Therefore, improvements are made to the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a pressure relief structure for a gas tank with high sealing and leakage prevention in order to solve the above-mentioned problems. When the pressure inside the tank is high, the shift plates a and b are pushed up in sequence until the slide frame is in contact with the blocking frame, and the venting port and the air hole are exposed, so that the gas can be released outward to relieve the pressure, and the service life is long; carbon fiber, polyurethane, reinforced cloth and aerogel cooperate to achieve a better explosion-proof effect.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a pressure relief structure for a gas tank with high sealing and leakage prevention, comprising an upper cover and a tank body, the upper cover is fixedly connected with a pressure relief device, a blocking plate is installed in the pressure relief device, the blocking plate is slidably connected with a blocking frame, the blocking frame is surrounded by a spring a, the blocking plate is installed with a telescopic tube, the telescopic tube is installed with a moving plate b, the moving plate b is slidably connected with a sliding frame, the moving plate b is slidably connected with a slider, the slider is rotatably connected with a rotating plate, the rotating plate is rotatably connected with the moving plate a, the tank body comprises an outer shell, aerogel, reinforced cloth, polyurethane, carbon fiber and an inner liner, and the outer shell is located on the outside of the aerogel.

[0006] Preferably, the blocking plate is provided with an air vent, the air vent is slidably connected to a blocking frame, and the blocking frame is equipped with a plug.

[0007] Preferably, the telescopic tube is connected with a spring b around it, the slide is connected with a spring d around it, and the spring a is located between the slide and the shift plate b.

[0008] Preferably, a sliding rod is installed in the shifting plate b, the sliding rod is slidably connected to a sliding block, and a spring c is installed on the inner side of the rotating plate.

[0009] Preferably, the movable plate b is provided with air holes, and air inlets are provided on both sides of the movable plate a, and the movable plate a is located above the limiting plate.

[0010] Preferably, the upper cover is fixedly connected to the tank body, the aerogel is bonded to a reinforcing cloth, and the reinforcing cloth is bonded to polyurethane.

[0011] Preferably, the polyurethane is bonded to the outside of the carbon fiber, and the carbon fiber is bonded with an inner liner.

[0012] The beneficial effects of the utility model are:

[0013] 1. When the pressure in the tank is high, push the shift plate a and the shift plate b upward in sequence until the slide frame is in contact with the blocking frame and the vent and air hole are exposed, so that the gas can be released outward to relieve the pressure, and the service life is long; when the gas pressure in the tank is high, push the shift plate a in the pressure relief device to slide upward along the pressure relief device, and the shift plate a is rotatably connected to the turn plate, and the other end of the turn plate is rotatably connected to the slider. The shift plate a moves upward and drives the turn plate to rotate outward to stretch the inner spring c. The spring c wants to restore its original state and exerts a downward force on the shift plate a. The rotation of the turn plate drives the connected slider to slide outward along the upper slide bar of the shift plate b. The high pressure continuously pushes the shift plate a to move up to a certain height and then pushes the upper shift plate b to move up. The shift plate b moves upward to compress the telescopic tube between the blocking plate and the shift plate b, and at the same time compresses the spring b on the outside of the telescopic tube. The spring b wants to restore its original state and exerts a force on the shift plate b A downward force causes the shift plate b to continuously move upward, driving the connected slide frame to move upward and stick to the blocking frame. When the shift frame continues to move upward, the blocking frame is squeezed, allowing the slide frame to slide along the shift frame b to compress the spring d between the slide frame and the shift frame b, exposing the air hole opened on the shift frame b, and pushing the blocking frame to slide upward along the blocking plate to compress the spring a. The upward movement of the blocking frame drives the connected plug to move upward, exposing the vent opened on the blocking plate, and the gas in the tank moves upward through the air inlet opened on the shift plate a, and after continuously moving upward through the air hole opened on the shift plate b, it moves out through the vent opened on the blocking plate for pressure relief. After the pressure relief, the pressure in the tank gradually decreases, and the blocking frame is pushed downward with the cooperation of springs a, b, d, etc., and multiple sealing can be performed with the cooperation of springs a, b, c, and d to prevent gas leakage in the tank after a single spring is damaged.

[0014] 2. Carbon fiber, polyurethane, reinforced cloth and aerogel work together to achieve a good explosion-proof effect; the tank body is composed of an outer shell, aerogel, reinforced cloth, polyurethane, carbon fiber and an inner liner. Carbon fiber is bonded to the outside of the inner liner. Carbon fiber has high hardness and high strength, which can enhance the overall strength and hardness. Polyurethane is bonded to the outside of the carbon fiber. Polyurethane has high elasticity and toughness, good tear resistance, and can absorb impact. A reinforced cloth made of aramid is bonded to the outside of the polyurethane. It has excellent properties such as ultra-high strength, high modulus, high temperature resistance, and light weight. Its strength is 5 to 6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, and its toughness is 2 times that of steel wire. Aerogel is bonded to the outside of the reinforced cloth, which has extremely low density, high elasticity, is very strong and durable, and can withstand a pressure equivalent to thousands of times its own mass. It can work with carbon fiber, polyurethane and reinforced cloth to achieve a good explosion-proof effect to prevent fragments from flying out after the gas tank explodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Sectional view at point A;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of the pressure relief device of the utility model;

[0018] Figure 4 It is a schematic diagram of a partial cross-section structure of the tank body of the utility model.

[0019] In the figure: 1. upper cover; 2. pressure relief device; 3. tank body; 4. blocking plate; 5. spring a; 6. telescopic tube; 7. spring b; 8. rotating plate; 9. limit plate; 10. spring c; 11. shift plate a; 12. shift plate b; 13. blocking frame; 14. vent; 15. plug; 16. air hole; 17. slide frame; 18. air inlet; 19. slider; 20. slide rod; 21. spring d; 22. liner; 23. carbon fiber; 24. polyurethane; 25. reinforcing cloth; 26. aerogel; 27. outer shell. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1 Please refer to Figure 1-4As shown, a pressure relief structure for a gas cylinder with high sealing and leakproof properties comprises an upper cover 1 and a tank body 3, wherein the upper cover 1 is fixedly connected with a pressure relief device 2, and the upper cover 1 can fix the position of the pressure relief device 2, and a plugging plate 4 is installed in the pressure relief device 2, and the plugging plate 4 is fixed inside the pressure relief device 2, and the plugging plate 4 is slidably connected with a plugging frame 13, and the plugging frame 13 is surrounded and connected with a spring a5, and the spring a5 is located between the plugging plate 4 and the plugging frame 13, so that a plug 15 on the plugging frame 13 can be closely attached to the plugging plate 4, and the plugging plate 4 is installed with a telescopic tube 6, and the telescopic tube 6 is installed with a moving plate b12, and the telescopic tube 6 is installed between the plugging plate 4 and the moving plate b 12, the moving plate b12 is slidably connected to the slide 17, the moving plate b12 is slidably connected to the slider 19, the slider 19 is rotatably connected to the rotating plate 8, one end of the rotating plate 8 is rotatably connected to the slider 19, and the other end of the rotating plate 8 is rotatably connected to the moving plate a11, the rotating plate 8 is rotatably connected to the moving plate a11, the tank body 3 includes an outer shell 27, an aerogel 26, a reinforcing cloth 25, polyurethane 24, carbon fiber 23 and an inner liner 22, the tank body 3 is composed of an outer shell 27, an aerogel 26, a reinforcing cloth 25, polyurethane 24, carbon fiber 23 and an inner liner 22, and the outer shell 27 is located on the outside of the aerogel 26.

[0022] Specifically, the blocking plate 4 is provided with a vent 14, and the vent 14 provided on the blocking plate 4 can facilitate the release of gas. The vent 14 is slidably connected to a blocking frame 13, and a limiting structure (not shown in the figure) is provided at the blocking frame 13, which can enable the blocking frame 13 to move vertically up and down. The blocking frame 13 is installed with a plug 15, and the plug 15 on the blocking frame 13 can block the top of the vent 14.

[0023] Specifically, the telescopic tube 6 is surrounded by a spring b7, which is located between the blocking plate 4 and the moving plate b12. The slide 17 is surrounded by a spring d21, which is located between the slide 17 and the moving plate b12. The bottom end of the slide 17 can be tightly attached to the bottom of the moving plate b12. The spring a21 is located between the slide 17 and the moving plate b12.

[0024] Specifically, the movable plate b12 is provided with an air hole 16, and the air hole 16 on the movable plate b12 is located on the inner side of the slide 17. The slide 17 can block the bottom of the air hole 16. The movable plate a11 is provided with air inlets 18 on both sides. The gas in the gas tank enters between the movable plate b12 and the movable plate a11 through the air inlets 18. The movable plate a11 is located above the limit plate 9, and the limit plate 9 is fixed inside the pressure relief device 2.

[0025] Specifically, the upper cover 1 is fixedly connected to the tank body 3, and the upper cover 1 is fixed to the top of the tank body 3. The aerogel 26 is bonded with a reinforcing cloth 25, and the aerogel 26 can have a good explosion-proof effect. The reinforcing cloth 25 is made of aramid, and the reinforcing cloth 25 is bonded with polyurethane 24.

[0026] Specifically, the polyurethane 24 is bonded to the outside of the carbon fiber 23 , and the polyurethane 24 and the carbon fiber 23 cooperate to achieve a good explosion-proof effect. The carbon fiber 23 is bonded with the inner liner 22 .

[0027] Example 2: Please refer to Figure 3 The difference between this embodiment and embodiment 1 is that a slide bar 20 is installed in the shift plate b12, and the shift plate b12 can fix the position of the slide bar 20. The slide bar 20 is slidably connected to a slider 19, and the slider 19 can move left and right along the slide bar 20. A spring c10 is installed on the inner side of the rotating plate 8, and the rotating plate 8 rotates outward to stretch the inner spring c10.

[0028] When the utility model is in use, when the gas pressure in the tank body 3 is high, the inner moving plate a11 of the pressure relief device 2 is pushed to slide upward along the pressure relief device 2, and the moving plate a11 is rotatably connected to the rotating plate 8, and the other end of the rotating plate 8 is rotatably connected to the sliding block 19. The moving plate a11 moves upward to drive the rotating plate 8 to rotate outward to stretch the inner spring c10. The spring c10 wants to restore its original state and exerts a downward force on the moving plate a11. The rotating plate 8 rotates to drive the connected sliding block 19 to slide outward along the sliding rod 20 on the moving plate b12. The relatively large pressure continuously pushes the moving plate a11 to move up to a certain height, and then pushes the upper moving plate b12 to move up. The moving plate b12 moves upward to compress the telescopic tube 6 between the blocking plate 4 and the moving plate b12. At the same time, the spring b7 on the outside of the telescopic tube 6 is compressed. The spring b7 wants to restore its original state and exerts a downward force on the shift plate b12. The shift plate b12 continues to move upward, driving the connected slide 17 to move upward and stick to the blocking frame 13. When the shift frame continues to move upward, the blocking frame 13 is squeezed, so that the slide 17 can slide along the shift frame b to compress the spring d21 between the slide 17 and the shift frame b, exposing the air hole 16 opened on the shift frame b, and pushing the blocking frame 13 to slide upward along the blocking plate 4 to compress the spring a5. The blocking frame 13 moves upward and drives the connected plug 15 to move upward, exposing the vent 14 opened on the blocking plate 4. The gas in the tank body 3 moves upward through the air inlet 18 opened on the shift plate a11, and passes through the shift plate a12. The air hole 16 opened in the plate b12 moves upward continuously and then moves out through the venting port 14 opened in the blocking plate 4 to release the pressure. After the pressure release, the pressure in the tank body 3 gradually decreases, and the blocking frame 13 is pushed downward with the cooperation of the spring a5, the spring b7, the spring d21, etc. The spring a5, the spring b7, the spring c10, the spring d21 can be used to perform multiple blocking to prevent gas leakage in the tank body 3 after a single spring is damaged. The tank body 3 is composed of an outer shell 27, an aerogel 26, a reinforcing cloth 25, a polyurethane 24, a carbon fiber 23 and an inner liner 22. The outer side of the inner liner 22 is bonded with carbon fiber 23. The carbon fiber 23 has high hardness and high strength, which can enhance the overall strength and hardness. 3 The outer side is bonded with polyurethane 24, which has high elasticity and toughness, good tear resistance, and can absorb impact. The outer side of polyurethane 24 is bonded with a reinforcing cloth 25 made of aramid, which has excellent properties such as ultra-high strength, high modulus, high temperature resistance, and light weight. Its strength is 5 to 6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, and its toughness is 2 times that of steel wire. The outer side of the reinforcing cloth 25 is bonded with aerogel 26, which has extremely low density, high elasticity, and is very strong and durable. It can withstand a pressure equivalent to several thousand times its own mass, and can cooperate with carbon fiber 23, polyurethane 24 and reinforcing cloth 25 to achieve a good explosion-proof effect to prevent fragments from flying out after the gas tank explodes.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pressure relief structure for a gas tank with high sealing and leakproof properties, comprising an upper cover (1) and a tank body (3), characterized in that: The upper cover (1) is fixedly connected to a pressure relief device (2), a blocking plate (4) is installed in the pressure relief device (2), the blocking plate (4) is slidably connected to a blocking frame (13), the blocking frame (13) is connected around a spring a (5), the blocking plate (4) is installed with a telescopic tube (6), the telescopic tube (6) is installed with a moving plate b (12), the moving plate b (12) is slidably connected to a sliding frame (17), the moving plate b (12) is slidably connected to a slider (19), the slider (19) is rotatably connected to a rotating plate (8), and the rotating plate (8) is rotatably connected to the moving plate a (11), the tank body (3) comprises an outer shell (27), an aerogel (26), a reinforcing cloth (25), polyurethane (24), carbon fiber (23) and an inner liner (22), and the outer shell (27) is located on the outside of the aerogel (26).

2. A highly sealed and leakproof pressure relief structure for a gas cylinder according to claim 1, characterized in that: The blocking plate (4) is provided with an air release port (14), the air release port (14) is slidably connected to a blocking frame (13), and the blocking frame (13) is provided with a plug (15).

3. The pressure relief structure for a gas cylinder with high sealing and leakproof properties according to claim 1, characterized in that: The telescopic tube (6) is connected with a spring b (7) in a surrounding manner, the sliding frame (17) is connected with a spring d (21) in a surrounding manner, and the spring a (21) is located between the sliding frame (17) and the shifting plate b (12).

4. A highly sealed and leakproof pressure relief structure for a gas cylinder according to claim 1, characterized in that: A sliding rod (20) is installed inside the shifting plate b (12), and the sliding rod (20) is slidably connected to a sliding block (19). A spring c (10) is installed inside the rotating plate (8).

5. The pressure relief structure for a gas cylinder with high sealing and leakproof properties according to claim 1, characterized in that: The moving plate b (12) is provided with air holes (16), and air inlets (18) are provided on both sides of the moving plate a (11), and the moving plate a (11) is located above the limiting plate (9).

6. The pressure relief structure for a gas cylinder with high sealing and leakproof properties according to claim 1, characterized in that: The upper cover (1) is fixedly connected to the tank body (3), the aerogel (26) is bonded to a reinforcing cloth (25), and the reinforcing cloth (25) is bonded to polyurethane (24).

7. A highly sealed and leakproof pressure relief structure for a gas cylinder according to claim 1, characterized in that: The polyurethane (24) is bonded to the outside of the carbon fiber (23), and the carbon fiber (23) is bonded to the inner liner (22).

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