A pressure-adjustable pressure vessel

Abstract

The present invention relates to the technical field of pressure vessels, and discloses a pressure vessel with adjustable pressure, which includes a pressure tank, and also includes a pressure regulator fixedly arranged on the top of the pressure tank, an outer housing fixedly clamped at the top end of the pressure tank, a limiting pipe arranged inside the outer housing, the bottom of the extrusion sleeve plate is located between the outer housing and the sealing member, both ends of the extrusion rod are located inside the extrusion sleeve plate, the transmission member includes an initial position and a set position, when the transmission member is in the set position, the sealing member fits with the closing member. By using the closing member and the sealing member to achieve effective sealing, and using the transmission member to make the closing member approach the sealing member first, so that the distance between the closing member and the sealing member is shortened, and then the transmission member controls the movement of the sealing member, so that the sealing member fits with the closing member, improving the anti-impact performance of the system, and also ensuring that the pressure tank can always achieve pressure balance under the condition of flow rate fluctuation, while maintaining an efficient and safe operating state.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure vessels, and in particular to a pressure-adjustable pressure vessel. Background Art

[0002] The current average water pipe pressure in general cities is above 0.30MPa, which can basically meet the water pressure requirements of users on the 6th floor. However, when users on the 6th floor or above are located at a higher geographical location and the water pressure of the public water supply pipeline cannot meet the user's requirements, secondary water supply facilities will be added. Pressure vessels can store and pressurize water to ensure that high-rise users receive stable water pressure, while balancing the water pressure to maintain the continuity and stability of the water supply.

[0003] However, in the prior art, in the factory labor industry, due to the highly concentrated water use time in the dormitory area, the water consumption surges in a short period of time, which not only causes a great waste of water resources, but also brings heavy pressure to the water supply system. Since the dormitory area directly relies on municipal water supply, it often faces the problems of insufficient water supply, large and unstable flow changes. When the amount of water inside the pressure vessel changes continuously, a vacuum suppressor on the top of the pressure vessel is required to maintain the pressure balance inside the pressure vessel to prevent vacuum from being generated due to too low pressure. However, during the peak water use period, due to the drastic flow change, the vacuum suppressor needs to be moved frequently to adjust the pressure inside the pressure vessel, which leads to increased wear of its internal seal, which not only affects the normal operation of the vacuum suppressor, but also greatly shortens its service life. In such a high-intensity use environment, the vacuum suppressor will be damaged in just 5 to 8 months, which not only means an increase in the frequency of equipment replacement, but also leakage of the vacuum suppressor will directly lead to unstable pressure control inside the pressure vessel, thereby affecting the normal operation of the entire water supply system, causing a comprehensive water outage in the water supply system, affecting the production and life of factory workers, and causing factory production to be blocked.

[0004] To this end, a pressure vessel with adjustable pressure is proposed to eliminate the hidden dangers to the pressure vessel caused by frequent changes in water supply. Summary of the invention

[0005] The purpose of the present invention is to provide a pressure-adjustable pressure vessel to solve the problem that the pressure vessel loses balance and cannot supply water due to concentrated water use and large water consumption.

[0006] The technical solution of the present invention is as follows: A pressure vessel with adjustable pressure, a pressure tank, further comprising a pressure regulator fixedly arranged on the top of the pressure tank, an outer shell fixedly clamped at the top end of the pressure tank, a limiting pipe arranged inside the outer shell, a transmission member slidably connected inside the outer shell, an extrusion sleeve disc rotatably connected inside the outer shell, a sealing member arranged inside the outer shell, a sealing member slidably connected inside the outer shell, an extrusion rod fixedly connected inside the transmission member, a plurality of arc-shaped racks fixedly connected at equal angles at the bottom end inside the outer shell, an inner ring arranged inside the outer shell, a return spring connected between the sealing member and the inner ring, and a filter fixedly connected at the top end inside the outer shell. An air inlet hole is provided at the top end of the outer shell, and a plurality of ventilation holes are provided at equal angles at the bottom end of the outer shell. The top of the sealing member is located inside the ventilation hole, the top end of the transmission member is located inside the limiting pipe, the transmission member is located at the center of the outer shell, the bottom of the extrusion sleeve disc is located between the outer shell and the sealing member, both ends of the extrusion rod are located inside the extrusion sleeve disc. The transmission member includes an initial position and a set position. When the transmission member is located at the set position, the sealing member fits with the sealing member.

[0007] Further, the limiting pipe includes a mounting pipe fixedly connected to the top end inside the outer shell and a return spring connected between the transmission member and the outer shell. The top end of the transmission member is located inside the mounting pipe, and the return spring is not deformed when the transmission member is located at the initial position.

[0008] Further, a reinforcing ring is clamped at the top of the extrusion sleeve disc. The inner diameter of the reinforcing ring is smaller than the length of the extrusion rod. The extrusion sleeve disc is divided into a left half sleeve disc and a right half sleeve disc. The left half sleeve disc and the right half sleeve disc have the same structure, and the left half sleeve disc and the right half sleeve disc are fixedly clamped.

[0009] Further, the sealing member includes a sleeve ring fixedly connected to the return spring, a plurality of semi-circular blocks fixedly connected at equal angles to the bottom of the sleeve ring, semi-circular blocks fixedly connected to the outside of the sleeve ring, and a sealing ball fixedly connected to the bottom end of the connecting rod. The connecting rod is slidably connected inside the arc-shaped rack. The number of the connecting rods is equal to that of the arc-shaped racks. The semi-circular blocks and the sealing balls correspond to the number and position of the connecting rods one by one. The sealing ball is located below the sealing member.

[0010] Further, the left half sleeve disc includes a sleeve shell rotatably connected inside the outer shell, a plurality of arc-shaped pieces clamped at the bottom end of the sleeve shell at equal angles, inclined surface arc blocks fixedly connected to the top of the arc-shaped pieces, and a guide groove opened inside the sleeve shell. The inclined surface arc blocks are located below the semi-circular blocks. The inclined surface of the inclined surface arc blocks is located on the side close to the semi-circular blocks. An arc groove opening is provided on the arc-shaped piece. The arc groove opening is concentric with the arc-shaped rack and has the same shape and size.

[0011] Further, the guiding groove is divided into a long vertical section, an inclined section and a short vertical section. The inclined section is located between the long vertical section and the short vertical section. The inclined sections formed in the left half disk and the right half disk face in opposite directions. Both ends of the extrusion rod are located inside the corresponding guiding grooves.

[0012] Further, the transmission member includes a shaft rod with one end connected to the return spring, a floating ball fixedly connected to the other end of the shaft rod, and an adsorption magnet fixedly clamped. The diameter of the floating ball is larger than that of the closing ball.

[0013] Further, the sealing member includes a mounting plate located below the outer housing, a plurality of sliding sleeves arranged at equal angles and fixedly connected to the top of the mounting plate, a weak spring connected between the outer housing and the mounting plate, a suction magnet fixedly clamped at the center of the mounting plate, and a plastic ring fixedly connected to the bottom of the mounting plate. The plastic ring is located directly below the sliding sleeve, and the sliding sleeve is located inside the ventilation hole.

[0014] Further, the diameter of the closing ball is larger than that of the sliding sleeve. The closing ball is located below the mounting plate. The connecting rod is located inside the sliding sleeve. The sliding sleeves and the plastic rings correspond to the number and position of the closing balls one by one.

[0015] Further, when the shaft rod is in the initial position, the distance between the adsorption magnet and the suction magnet is slightly larger than the vertical length of the guiding groove. The magnetic force of the adsorption magnet and the suction magnet is greater than the elastic force of the weak spring. When the shaft rod is in the set position, the suction magnet adsorbs to the adsorption magnet.

[0016] Advantages of the present invention:

[0017] By using the closing member and the sealing member to achieve effective sealing, and using the transmission member to make the closing member approach the sealing member first, so that the distance between the closing member and the sealing member is reduced, achieving effective buffering. Subsequently, the transmission member controls the movement of the sealing member, making the sealing member fit with the closing member, avoiding sudden pressure impacts, significantly reducing the impact force, ensuring the pressure stability of the pressure tank, enabling stable operation, preventing medium leakage, and being able to effectively cope with multiple strong impacts caused by frequent changes in flow rate. First, the transmission member absorbs and disperses the impact force, which is then conducted to the closing member and the sealing member, causing the two to move in stages, avoiding rapid collisions between them, reducing the collision distance, improving the anti-impact performance of the system, and also ensuring that the pressure tank can always achieve pressure balance under the condition of flow rate fluctuations, while maintaining an efficient and safe operating state.

[0018] The floating ball is used to ensure the fast response ability, ensuring that the pressure tank can respond in a timely manner when facing changes in water demand, guaranteeing the continuity and stability of water supply. The top of the ventilation hole is closed by the arc bar frame and the arc piece, and at the same time, the closing ball closes the bottom end of the sliding sleeve, realizing the two-way closing of the ventilation position, enhancing the safety, preventing leakage, avoiding pressure fluctuations caused by flow, improving the accuracy of the equipment, and being able to adapt to different environments, better protecting the interior of the pressure tank from the environment and ensuring the stable operation of the equipment.

[0019] By dividing the extrusion sleeve disc into a left half sleeve disc and a right half sleeve disc, it is convenient for installation. At the same time, without adding external drive, it can be directly modified on the original shaft rod and adsorption magnet. Just install the extrusion rod by opening holes, and the original maintenance and installation methods can be directly used, reducing the installation time and labor cost, facilitating maintenance and inspection, shortening the downtime during equipment maintenance or upgrade, reducing installation errors and adjustment time, and at the same time enhancing the adaptability of the equipment to different production environments, enhancing the overall reliability and maintenance convenience. Brief Description of the Drawings

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the first perspective of the present invention;

[0021] Figure 2 It is a top view of the outer shell of the present invention;

[0022] Figure 3 For the present invention Figure 2 The sectional view taken along A-A in;

[0023] Figure 4 It is a structural schematic diagram of the outer shell of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the closing member of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the guiding groove of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the arc bar frame of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the transmission member of the present invention;

[0028] Figure 9 It is a structural schematic diagram of the sealing member of the present invention;

[0029] Figure 10 For the present invention Figure 3 The enlarged schematic diagram at B in.

[0030] In the figure:

[0031] 1. Pressure tank; 2. Pressure regulator; 3. Outer shell; 31. Air inlet; 32. Air vent; 4. Restriction tube; 41. Mounting tube; 42. Return spring; 5. Transmission member; 51. Shaft; 52. Float; 53. Adsorption magnet; 6. Extrusion sleeve; 601. Left half sleeve; 61. Sleeve shell; 62. Arc sheet; 621. Arc notch; 63. Inclined arc block; 64. Guide groove; 641. Long vertical section; 642, oblique section; 643, short vertical section; 602, right half sleeve; 7, closing piece; 71, sleeve ring; 72, connecting rod; 73, semicircular block; 74, closing ball; 8, sealing piece; 81, mounting plate; 82, sliding sleeve; 83, weak spring; 84, attracted magnet; 85, plastic ring; 9, extrusion rod; 10, arc frame; 11, inner ring; 12, return spring; 13, filter; 14, reinforcement ring. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] Reference Figures 1-10 , as an embodiment of the present invention, a pressure vessel with adjustable pressure is provided, including a pressure tank 1, and also including a pressure regulator 2 fixedly arranged on the top of the pressure tank 1, an outer shell 3 fixedly clamped on the top of the pressure tank 1, a limiting tube 4 arranged inside the outer shell 3, a transmission member 5 slidably connected to the inside of the outer shell 3, an extrusion sleeve 6 rotatably connected to the inside of the outer shell 3, a sealing member 7 arranged inside the outer shell 3, a sealing member 8 slidably connected to the inside of the outer shell 3, an extrusion rod 9 fixedly connected to the inside of the transmission member 5, a plurality of arc bars 10 arranged at equal angles and fixedly connected to the bottom end of the inner part of the outer shell 3, an inner ring 11 arranged inside the outer shell 3, a return spring 12 connected between the closing member 7 and the inner ring 11, and a filter 13 fixedly connected to the top of the inner part of the outer shell 3, and the top of the outer shell 3 is provided with an inlet The air hole 31 and the bottom end of the outer shell 3 are provided with a plurality of air vents 32 at equal angles, the top of the sealing member 8 is located inside the air vent 32, the top of the transmission member 5 is located inside the limiting tube 4, the transmission member 5 is located at the center of the outer shell 3, the bottom of the extrusion sleeve 6 is located between the outer shell 3 and the closure member 7, both ends of the extrusion rod 9 are located inside the extrusion sleeve 6, the transmission member 5 includes an initial position and a set position, when the transmission member 5 is located at the set position, the sealing member 8 is fitted with the closure member 7, that is to say, when the water level changes rapidly and continuously, the closure member 7 and the sealing member 8 can move relative to each other in stages, thereby absorbing and dispersing the impact force, reducing the wear and damage caused by direct collision, ensuring that the pressure of the pressure tank 1 can be stable, and improving safety and reliability. In addition, the pressure regulator 2 is a conventional device for adjusting the pressure of the pressure tank 1.

[0034] Reference Figures 1-3, the limiting tube 4 includes an installation tube 41 fixedly connected to the inner top end of the outer housing 3, and a return spring 42 connected between the transmission member 5 and the outer housing 3. The top end of the transmission member 5 is located inside the installation tube 41, and the return spring 42 is not deformed when the transmission member 5 is in the initial position.

[0035] Referring to Figures 1-7 , a reinforcing ring 14 is clamped on the top of the extrusion sleeve disc 6. The inner diameter of the reinforcing ring 14 is smaller than the length of the extrusion rod 9, so that the extrusion rod 9 will be blocked by the reinforcing ring 14. The extrusion sleeve disc 6 is divided into a left half sleeve disc 601 and a right half sleeve disc 602. The left half sleeve disc 601 and the right half sleeve disc 602 have the same structure. The left half sleeve disc 601 and the right half sleeve disc 602 are fixedly clamped, and at the same time, the reinforcing ring 14 further reinforces the two, which can facilitate installation, improve efficiency, reduce the time required for installation, and at the same time facilitate disassembly and enhance the maintainability of the product.

[0036] Referring to Figures 2-5 , the closing member 7 includes a collar 71 fixedly connected to the return spring 12, a plurality of semi-circular blocks 73 arranged at equal angles and fixedly connected to the bottom of the collar 71, semi-circular blocks 73 fixedly connected to the outside of the collar 71, and a closing ball 74 fixedly connected to the bottom end of the connecting rod 72. The connecting rod 72 is slidably connected inside the arc-shaped frame 10. The number of the connecting rod 72 and the arc-shaped frame 10 is equal. The arc-shaped frame 10 restricts the connecting rod 72. At the same time, both the arc-shaped frame 10 and the return spring 12 provide support for the whole closing member 7. The semi-circular blocks 73 and the closing balls 74 correspond to the number and position of the connecting rod 72 one by one. The closing ball 74 is located below the sealing member 8.

[0037] Referring to Figures 2-6 , the left half sleeve disc 601 includes a sleeve 61 rotatably connected inside the outer housing 3, a plurality of arc-shaped pieces 62 arranged at equal angles and clamped at the bottom end of the sleeve 61, an inclined surface arc block 63 fixedly connected to the top of the arc-shaped piece 62, and a guide groove 64 opened inside the sleeve 61. The inclined surface arc block 63 is located below the semi-circular block 73, and the inclined surface of the inclined surface arc block 63 is located on the side close to the semi-circular block 73. The lower part of the semi-circular block 73 is extruded by the inclined surface of the inclined surface arc block 63, so that the semi-circular block 73 moves upward after being extruded, thereby driving the closing ball 74 to approach the sealing member 8. An arc groove 621 is opened on the arc-shaped piece 62. The arc groove 621 is concentric with the arc-shaped frame 10 and has the same shape and size. After the arc-shaped piece 62 rotates, the arc-shaped frame 10 will enter the inside of the arc groove 621, and the arc-shaped piece 62 can be combined with the arc-shaped frame 10, so that the top of the ventilation hole 32 is closed, achieving a double-closed effect, ensuring sufficient adaptability, being able to easily cope with the challenges of different water supply scenarios, and always maintaining efficient and stable operation.

[0038] Specifically, since the left half - set disk 601 and the right half - set disk 602 have the same structure, and the two are combined into an extrusion sleeve disk 6, the number of arc pieces 62 included in both the left half - set disk 601 and the right half - set disk 602 is the same, and the sum of the number of arc pieces 62 of the two is the same as the number of semi - circular blocks 73. That is to say, the total number of arc pieces 62 and inclined - surface arc blocks 63 is equal to the number of semi - circular blocks 73. That is, the number of semi - circular blocks 73 is four, so the number of arc pieces 62 included in the left half - set disk 601 is two. If the combination of the left half - set disk 601 and the right half - set disk 602 is regarded as a whole, then the arc pieces 62 and the inclined - surface arc blocks 63 are in one - to - one correspondence with the number and position of the semi - circular blocks 73.

[0039] Refer to Figures 2-6 , the guiding groove 64 is divided into a long vertical section 641, an inclined section 642, and a short vertical section 643. The inclined section 642 is located between the long vertical section 641 and the short vertical section 643. The inclined sections 642 opened on the left half - set disk 601 and the right half - set disk 602 face in opposite directions. Both ends of the extrusion rod 9 are located inside the corresponding guiding groove 64, ensuring that the extrusion rod 9 can exert sufficient thrust on the sleeve 61. When the extrusion rod 9 crosses the inclined section 642 and enters the short vertical section 643, the sleeve 61 will not rotate, and the transmission part 5 will continue to move and cooperate with the sealing part 8, so that the sealing part 8 moves downward to fit with the connecting rod 72 for further sealing.

[0040] Refer to Figures 1-8 , the transmission part 5 includes a shaft rod 51 with one end connected to the return spring 42, a floating ball 52 fixedly connected to the other end of the shaft rod 51, and an adsorption magnet 53 fixedly clamped. The diameter of the floating ball 52 is larger than that of the closing ball 74, so that the floating ball 52 can be better affected by the change of water flow. The top of the shaft rod 51 is restricted by the installation pipe 41 and cannot rotate. At this time, the shaft rod 51 can only drive the extrusion rod 9 to move vertically up and down. By using the pressure of the extrusion rod 9, the guiding groove 64 can be extruded, causing the sleeve 61 to rotate.

[0041] Refer to Figures 1-9 , the sealing part 8 includes an installation disk 81 located below the outer housing 3, a plurality of sliding sleeves 82 arranged at equal angles and fixedly connected to the top of the installation disk 81, a weak spring 83 connected between the outer housing 3 and the installation disk 81, a suction magnet 84 fixedly clamped at the center of the installation disk 81, and a plastic ring 85 fixedly connected to the bottom of the installation disk 81. The plastic ring 85 is located directly below the sliding sleeve 82. The sliding sleeve 82 is located inside the vent hole 32. Air enters from the air inlet hole 31, passes through the inside of the sliding sleeve 82 and enters the pressure tank 1. Setting a plurality of sliding sleeves 82 can ensure the basic air - inlet speed. First, the floating ball 52 receives an external force, and at the same time, the impact force is dispersed by a plurality of connecting rods 72, which can reduce the impact, effectively reduce noise and vibration, reduce the wear of other components of the equipment caused by vibration, and reduce the maintenance cost and replacement frequency.

[0042] In addition, the diameter of the mounting disc 81 is equal to the inner diameter of the outer housing 3, which can reduce the water from entering above the mounting disc 81.

[0043] Refer to Figures 1-10 , the diameter of the closing ball 74 is larger than that of the sliding sleeve 82. The closing ball 74 is located below the mounting disc 81. The connecting rod 72 is located inside the sliding sleeve 82. The sliding sleeve 82 and the plastic ring 85 correspond to the number and position of the closing ball 74 one by one.

[0044] Specifically, the closing ball 74 is used to block the lower part of the sliding sleeve 82. Since the diameter of the closing ball 74 is larger than that of the sliding sleeve 82, sufficient sealing effect can be ensured. When the connecting rod 72 moves, it will move inside the sliding sleeve 82. At the same time, the connecting rod 72 is located at the center of the sliding sleeve 82.

[0045] Refer to Figures 1-10 , when the shaft rod 51 is in the initial position, the distance between the adsorption magnet 53 and the attracted magnet 84 is slightly larger than the vertical length of the guiding groove 64. Then when the extrusion rod 9 reaches the top of the guiding groove 64, the extrusion rod 9 cannot move due to the influence of the reinforcement ring 14. Although there is still a distance between the adsorption magnet 53 and the attracted magnet 84, this distance is short to ensure the adsorption between the adsorption magnet 53 and the attracted magnet 84. And the magnetic force between the adsorption magnet 53 and the attracted magnet 84 is greater than the elastic force of the weak spring 83. Therefore, when the adsorption magnet 53 and the attracted magnet 84 approach each other, they will be adsorbed, and the mounting disc 81 will move accordingly to stretch the weak spring 83. The weak spring 83 can provide power for the return movement of the mounting disc 81. When the shaft rod 51 is in the set position, the attracted magnet 84 and the adsorption magnet 53 are adsorbed.

[0046] In addition, since the floating ball 52 is located between multiple connecting rods 72, when the adsorption magnet 53 and the attracted magnet 84 are adsorbed, the floating ball 52 will approach the connecting rod 72, but they will not contact each other. Herein, the vertical length of the guiding groove 64 represents the vertical distance from its lowest point to the highest point, rather than the curve length inside.

[0047] The working principle of the present invention is as follows: When the water level rises, the floating ball 52 moves upward under the influence of buoyancy. When the floating ball 52 moves upward, it drives the adsorption magnet 53, the shaft rod 51, and the extrusion rod 9 to move synchronously. The shaft rod 51 can only move vertically due to the restriction of the installation pipe 41. When the shaft rod 51 moves upward, it compresses the return spring 42. At the same time, when the extrusion rod 9 moves upward, it moves inside the guiding groove 64. When the extrusion rod 9 reaches the inclined section 642 of the guiding groove 64, the sleeve 61 rotates under the influence of the path of the inclined section 642. When the sleeve 61 rotates, it drives the arc piece 62 and the inclined surface arc block 63 to rotate synchronously. After the arc piece 62 rotates, it fits with the arc bar frame 10, thereby first closing the upper part of the ventilation hole 32. At the same time, when the inclined surface arc block 63 rotates with the arc piece 62, the inclined surface arc block 63 squeezes the corresponding semi-circular block 73. After being squeezed, multiple semi-circular blocks 73 move upward. After the semi-circular blocks 73 move upward, they drive the collar 71, the connecting rod 72, and the closing ball 74 to move upward synchronously. The collar 71 squeezes the return spring 12, and the return spring 12 is compressed. At the same time, after the closing ball 74 moves upward, it approaches the plastic ring 85. At this time, as the water level continues to rise, the floating ball 52 will continue to move upward, and the shaft rod 51 and the adsorption magnet 53 will also move upward accordingly. At this time, the extrusion rod 9 will reach the long vertical section 641 of the guiding groove 64, so the extrusion rod 9 will not exert pressure on the sleeve 61. When the adsorption magnet 53 moves upward with the floating ball 52 to the set position, the adsorption magnet 53 approaches the attracted magnet 84, so that the adsorption magnet 53 adsorbs the attracted magnet 84. The attracted magnet 84 moves downward to drive the mounting plate 81 to move downward. The mounting plate 81 stretches the weak spring 83. At the same time, when the mounting plate 81 moves downward, it drives multiple sliding sleeves 82 and the plastic ring 85 to move downward synchronously, so that the plastic ring 85 fits with the closing ball 74, making the bottom of the sliding sleeve 82 sealed. When the water flow drops and the floating ball 52 moves downward at this time, when the floating ball 52 moves downward, it drives the adsorption magnet 53 to move downward. Since the adsorption magnet 53 is adsorbed to the attracted magnet 84, the adsorption magnet 53 pulls the attracted magnet 84. However, due to the bottom of the plastic ring 85 being blocked by the closing ball 74 and unable to move downward, the mounting plate 81 and the attracted magnet 84 cannot move downward either. Therefore, the adsorption magnet 53 separates from the attracted magnet 84. When the attracted magnet 84 loses the pull, the weak spring 83 contracts, causing the mounting plate 81 to move upward, and the plastic ring 85 separates from the closing ball 74, making the bottom of the sliding sleeve 82 open. At this time, if the water level rises, the transmission member 5 moves upward as a whole to seal the bottom end of the sliding sleeve 82. If the water level drops, the transmission member 5 moves downward as a whole. At this time, the extrusion rod 9 moves downward with the shaft rod 51 to make the sleeve 61 rotate back. Then the arc piece 62 and the inclined surface arc block 63 rotate, and the inclined surface arc block 63 no longer squeezes the semi-circular block 73. The return spring 12 rebounds to make the collar 71 move downward. At this time, the collar 71 makes the connecting rod 72, the semi-circular block 73, and the closing ball 74 move downward, making the closing ball 74 move further away from the lower part of the sliding sleeve 82. The floating ball 52 changes with the change of the water level.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A pressure-adjustable pressure vessel, comprising a pressure tank, characterized in that: The invention also comprises a pressure regulator fixedly arranged on the top of the pressure tank, an outer shell fixedly clamped on the top of the pressure tank, a limiting tube arranged inside the outer shell, a transmission member slidably connected to the inside of the outer shell, an extrusion sleeve rotatably connected to the inside of the outer shell, a closing member arranged inside the outer shell, a sealing member slidably connected to the inside of the outer shell, an extrusion rod fixedly connected to the inside of the transmission member, a plurality of arc bars arranged at equal angles and fixedly connected to the bottom end of the inner shell, an inner ring arranged inside the outer shell, a return spring connected between the closing member and the inner ring, and a filter fixedly connected to the top end of the inner shell, the top of the outer shell is provided with an air inlet hole, the bottom of the outer shell is provided with a plurality of vent holes at equal angles, the top of the sealing member is located inside the vent hole, the top of the transmission member is located inside the limiting tube, the transmission member is located at the center of the outer shell, the bottom of the extrusion sleeve is located between the outer shell and the closing member, both ends of the extrusion rod are located inside the extrusion sleeve, the transmission member comprises an initial position and a set position, and when the transmission member is located at the set position, the sealing member fits with the closing member; The limiting tube includes a mounting tube fixedly connected to the top end of the inner part of the outer shell, and a return spring connected between the transmission member and the outer shell; A reinforcement ring is clamped on the top of the extrusion sleeve, the inner diameter of which is smaller than the length of the extrusion rod. The extrusion sleeve is divided into a left half sleeve and a right half sleeve, the left half sleeve and the right half sleeve have the same structure, and the left half sleeve and the right half sleeve are fixedly clamped; The closing member includes a collar fixedly connected to the return spring, a plurality of semicircular blocks arranged at equal angles and fixedly connected to the bottom of the collar, a semicircular block fixedly connected to the outside of the collar, and a closing ball fixedly connected to the bottom end of the connecting rod; The left half sleeve disc comprises a sleeve shell rotatably connected to the inner part of the outer shell, a plurality of arc pieces arranged at equal angles and clamped to the bottom end of the sleeve shell, an inclined arc block fixedly connected to the top of the arc piece, and a guide groove opened in the sleeve shell, wherein the arc piece is provided with an arc groove opening, and the arc groove opening is concentric with the arc bar frame and has the same shape and size; The guide groove is divided into a long vertical section, an oblique section and a short vertical section, the oblique section is located between the long vertical section and the short vertical section, the oblique sections of the left half sleeve and the right half sleeve face opposite directions, and the two ends of the extrusion rod are located inside the corresponding guide grooves; The transmission member comprises a shaft rod with one end connected to a return spring, a floating ball fixedly connected to the other end of the shaft rod, and a magnet fixedly clamped on the adsorption magnet, wherein the diameter of the floating ball is larger than that of the closed ball.

2. A pressure-adjustable pressure vessel according to claim 1, characterized in that: The top end of the transmission member is located inside the mounting tube, and the return spring is not deformed when the transmission member is located at the initial position.

3. A pressure-adjustable pressure vessel according to claim 2, characterized in that: The connecting rod is slidably connected to the inside of the arc frame, the number of the connecting rod is equal to that of the arc frame, the semicircular blocks and the closing balls correspond to the number and position of the connecting rods one by one, and the closing balls are located below the sealing member.

4. A pressure-adjustable pressure vessel according to claim 1, characterized in that: The inclined arc block is located below the semicircular block, and the inclined surface of the inclined arc block is located on a side close to the semicircular block.

5. The pressure-adjustable pressure container according to claim 1, characterized in that: The sealing component includes a mounting plate located below the outer shell, a plurality of sliding sleeves arranged at equal angles and fixedly connected to the top of the mounting plate, a weak spring connected between the outer shell and the mounting plate, an attracted magnet fixedly clamped at the center of the mounting plate, and a plastic ring fixedly connected to the bottom of the mounting plate, wherein the plastic ring is located directly below the sliding sleeve, and the sliding sleeve is located inside the vent.

6. A pressure-adjustable pressure container according to claim 5, characterized in that: The diameter of the closing ball is larger than the diameter of the sliding sleeve. The closing ball is located below the mounting plate. The connecting rod is located inside the sliding sleeve. The sliding sleeve and the plastic ring correspond to the number and position of the closing balls one by one.

7. The pressure-adjustable pressure container according to claim 5, characterized in that: When the shaft is located at the initial position, the distance between the adsorption magnet and the attracted magnet is slightly larger than the vertical length of the guide groove, the magnetic force between the adsorption magnet and the attracted magnet is larger than the elastic force of the weak spring, and when the shaft is located at the set position, the attracted magnet is adsorbed to the adsorption magnet.

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