Pressure container capable of adjusting pressure

Abstract

The invention relates to the technical field of pressure containers, and discloses a pressure-adjustable pressure container which comprises a pressure tank and further comprises a pressure regulator fixedly arranged at the top of the pressure tank, an outer shell fixedly clamped to the top end of the pressure tank and a limiting pipe arranged in the outer shell. The two ends of the extrusion rod are both located in the extrusion sleeve disc, the transmission part comprises an initial position and a set position, and when the transmission part is located at the set position, the sealing part is attached to the closing part. Effective sealing is achieved through the sealing piece and the sealing piece, the sealing piece firstly gets close to the sealing piece through the transmission piece, the distance between the sealing piece and the sealing piece is shortened, then the transmission piece controls the sealing piece to move, the sealing piece is attached to the sealing piece, the impact resistance of a system is improved, and it is guaranteed that under the condition of flow fluctuation, the sealing piece can be effectively sealed. The pressure tank can achieve pressure balance all the time, and meanwhile the efficient and safe operation state is kept.

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: a pressure vessel with adjustable pressure, a pressure tank, also includes 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 inside of the outer shell, an inner ring arranged inside the outer shell, and a ring connected to the closing member and A return spring between the inner rings, and a filter fixedly connected to the top end of the outer shell, the top end of the outer shell is provided with an air inlet hole, the bottom end of the outer shell is provided with a plurality of air vents at equal angles, the top of the sealing member is located inside the air vent, the top end 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 closure member, both ends of the extrusion rod are located inside the extrusion sleeve, the transmission member includes an initial position and a set position, and when the transmission member is located at the set position, the sealing member fits with the closure member.

[0007] Furthermore, the limiting tube includes a mounting tube fixedly connected to the top end of 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 tube, and the return spring is not deformed when the transmission member is in the initial position.

[0008] Furthermore, a reinforcement ring is clamped on the top of the extrusion sleeve, and the inner diameter of the reinforcement ring is smaller than the length of the extrusion rod. The extrusion sleeve is divided into a left half sleeve and a right half sleeve, and 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.

[0009] Furthermore, the closing member includes a ring fixedly connected to a return spring, a plurality of semicircular blocks arranged at equal angles and fixedly connected to the bottom of the ring, a semicircular block fixedly connected to the outside of the ring, and a closing ball fixedly connected to the bottom end of a connecting rod. The connecting rod is slidably connected to the interior of the arc bar frame, the number of the connecting rod is equal to that of the arc bar frame, the semicircular blocks and the closing balls correspond one-to-one to the number and position of the connecting rods, and the closing ball is located below the sealing member.

[0010] Furthermore, the left half sleeve disc includes a sleeve shell rotatably connected to the inside of the outer shell, a plurality of arc pieces arranged at equal angles and clamped on 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, the inclined arc block is located below the semicircular block, the inclined surface of the inclined arc block is located on the side close to the semicircular block, the arc piece is provided with an arc groove opening, the arc groove opening is concentric with the arc bar frame and has the same shape and size.

[0011] Furthermore, 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 disc and the right half disc are in opposite directions. Both ends of the extrusion rod are located inside the corresponding guide grooves.

[0012] Furthermore, 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 a floating ball fixedly clamped to the adsorption magnet, and the diameter of the floating ball is larger than the closed ball.

[0013] Furthermore, 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, the plastic ring being located directly below the sliding sleeve, and the sliding sleeve being located inside the vent.

[0014] Furthermore, the diameter of the closing ball is greater 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, and the sliding sleeve and the plastic ring correspond to the number and position of the closing balls one by one.

[0015] Furthermore, 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.

[0016] Beneficial effects of the present invention: Effective sealing is achieved by utilizing closures and sealing parts, and transmission parts are used to make the closures approach the sealing parts first, so that the distance between the closures and the sealing parts is shortened to achieve effective buffering. Subsequently, the transmission parts control the movement of the sealing parts to make the sealing parts fit with the closures to avoid sudden pressure impacts, thereby significantly reducing the impact force and ensuring stable pressure in the pressure tank to achieve stable operation and prevent medium leakage. It can effectively cope with multiple strong impacts caused by frequent changes in flow rate, and first absorb and disperse the impact force through the transmission parts, and then transmit it to the closures and sealing parts, so that the two move in stages, avoiding rapid collisions between them, reducing the collision distance, and improving the impact resistance of the system. It also ensures that in the case of flow fluctuations, the pressure tank can always achieve pressure balance while maintaining efficient and safe operation.

[0017] The floating ball is used to ensure rapid response capability, ensuring that the pressure tank can respond promptly to changes in water demand and ensure the continuity and stability of water supply. The top of the vent is closed using the arc frame and arc sheet, and the bottom of the sliding sleeve is closed using the closing ball to achieve two-way closure of the vent position, thereby enhancing safety, preventing leakage, and avoiding pressure fluctuations caused by flow. This improves equipment accuracy, enables it to adapt to different environments, better protects the inside of the pressure tank from environmental influences, and ensures stable operation of the equipment.

[0018] By dividing the extrusion sleeve into a left half sleeve and a right half sleeve, installation is facilitated. At the same time, there is no need to add external drive. The original shaft rod and adsorption magnet can be directly modified, and a hole can be opened to install the extrusion rod. The original maintenance method and installation method can be directly used, which reduces installation time and labor costs, facilitates maintenance and inspection, shortens downtime during equipment maintenance or upgrades, reduces installation errors and adjustment time, and at the same time improves the adaptability of the equipment to different production environments, enhancing the overall reliability and maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a three-dimensional structure of the present invention from a first viewing angle; Figure 2 A top view of the outer shell of the present invention; Figure 3 For the present invention Figure 2 Sectional view at AA in the middle; Figure 4 It is a structural schematic diagram of the outer shell of the present invention; Figure 5 It is a schematic structural diagram of the closure member of the present invention; Figure 6 It is a structural schematic diagram of the guide groove of the present invention; Figure 7 It is a structural schematic diagram of the arc bar frame of the present invention; Figure 8 It is a structural schematic diagram of the transmission member of the present invention; Fig. 9 It is a structural schematic diagram of the sealing member of the present invention; Fig.10 For the present invention Figure 3 A magnified schematic diagram of point B in the middle.

[0020] In the figure: 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

[0021] 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.

[0022] Reference Figure 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.

[0023] Reference Figure 1-3The limiting tube 4 includes a mounting tube 41 fixedly connected to the top of the inner part of the outer shell 3, and a return spring 42 connected between the transmission member 5 and the outer shell 3. The top of the transmission member 5 is located inside the mounting tube 41. When the transmission member 5 is in the initial position, the return spring 42 is not deformed.

[0024] Reference Figure 1-7 A reinforcement ring 14 is clamped on the top of the extrusion sleeve 6. The inner diameter of the reinforcement ring 14 is smaller than the length of the extrusion rod 9, so that the extrusion rod 9 will be blocked by the reinforcement ring 14. The extrusion sleeve 6 is divided into a left half sleeve 601 and a right half sleeve 602. The left half sleeve 601 and the right half sleeve 602 have the same structure. The left half sleeve 601 and the right half sleeve 602 are fixedly clamped, and the reinforcement ring 14 further reinforces the two, which can facilitate installation and improve efficiency, reduce the time required for installation, and facilitate disassembly, thereby enhancing the maintainability of the product.

[0025] Reference Figure 2-5 The closing member 7 includes a ring 71 fixedly connected to the return spring 12, a plurality of semicircular blocks 73 arranged at equal angles and fixedly connected to the bottom of the ring 71, a semicircular block 73 fixedly connected to the outside of the ring 71, and a closing ball 74 fixedly connected to the bottom end of the connecting rod 72. The connecting rod 72 is slidably connected to the inside of the arc frame 10. The number of connecting rods 72 is equal to that of the arc frame 10. The arc frame 10 restricts the connecting rod 72. At the same time, the arc frame 10 and the return spring 12 both provide support for the closing member 7 as a whole. The semicircular blocks 73 and the closing balls 74 correspond to the number and position of the connecting rods 72 one by one, and the closing ball 74 is located below the sealing member 8.

[0026] Reference Figure 2-6 The left half sleeve disc 601 includes a sleeve shell 61 rotatably connected to the inside of the outer shell 3, a plurality of arc pieces 62 arranged at equal angles and clamped to the bottom end of the sleeve shell 61, an inclined arc block 63 fixedly connected to the top of the arc piece 62, and a guide groove 64 opened in the sleeve shell 61, the inclined arc block 63 is located below the semicircular block 73, and the inclined surface of the inclined arc block 63 is located on the side close to the semicircular block 73. The inclined surface of the inclined arc block 63 is used to squeeze the bottom of the semicircular block 73, so that the semicircular block 73 is squeezed. After that, it moves upward, thereby driving the closing ball 74 to approach the sealing part 8. An arc groove 621 is opened on the arc piece 62. The arc groove 621 is concentric with the arc bar frame 10 and has the same shape and size, so that after the arc piece 62 rotates, the arc bar frame 10 will enter the interior of the arc groove 621, and the arc piece 62 can be spliced ​​with the arc bar frame 10, so that the top of the vent hole 32 is closed, which can achieve a double sealing effect, ensure sufficient adaptability, and can easily cope with the challenges of different water supply scenarios, and always maintain efficient and stable operation.

[0027] Specifically, since the left half disc 601 and the right half disc 602 have the same structure and are combined into an extrusion disc 6, the left half disc 601 and the right half disc 602 include the same number of arc pieces 62, and the sum of the number of arc pieces 62 of the two is the same as the number of semicircular blocks 73, that is, the total number of arc pieces 62 and inclined arc pieces 63 is equal to the semicircular blocks 73, that is, the number of semicircular blocks 73 is four, and the number of arc pieces 62 included in the left half disc 601 is two. If the left half disc 601 and the right half disc 602 are combined as a whole, the number and position of the arc pieces 62 and the inclined arc pieces 63 correspond one-to-one to the semicircular blocks 73.

[0028] Reference Figure 2-6 The guide groove 64 is divided into a long vertical section 641, an oblique section 642 and a short vertical section 643. The oblique section 642 is located between the long vertical section 641 and the short vertical section 643. The oblique sections 642 opened in the left half sleeve disc 601 and the right half sleeve disc 602 face opposite directions. Both ends of the extrusion rod 9 are located inside the corresponding guide groove 64 to ensure that the extrusion rod 9 can exert sufficient thrust on the sleeve shell 61. When the extrusion rod 9 passes over the oblique section 642 and enters the short vertical section 643, the sleeve shell 61 will not rotate, and the transmission member 5 will continue to move to cooperate with the sealing member 8, so that the sealing member 8 moves down and fits with the connecting rod 72 for further sealing.

[0029] Reference Figure 1-8 The transmission member 5 includes a shaft rod 51 connected to the return spring 42 at one end, a float 52 fixedly connected to the other end of the shaft rod 51, and a fixedly clamped adsorption magnet 53. The diameter of the float 52 is larger than the closing ball 74, so that the float 52 can be better affected by the change of water flow. The top of the shaft rod 51 is restricted by the mounting tube 41 and cannot rotate. At this time, the shaft rod 51 can only drive the extrusion rod 9 to move vertically up and down. The pressure of the extrusion rod 9 can be used to squeeze the guide groove 64, so that the sleeve 61 rotates.

[0030] Reference Figure 1-9 The sealing member 8 includes a mounting plate 81 located below the outer shell 3, a plurality of sleeves 82 arranged at equal angles and fixedly connected to the top of the mounting plate 81, a weak spring 83 connected between the outer shell 3 and the mounting plate 81, an attracted magnet 84 fixedly clamped at the center of the mounting plate 81, and a plastic ring 85 fixedly connected to the bottom of the mounting plate 81, the plastic ring 85 is located directly below the sleeve 82, the sleeve 82 is located inside the vent 32, the air enters from the air inlet 31, passes through the inside of the sleeve 82 and enters the pressure tank 1, and the plurality of sleeves 82 are arranged to ensure the basic air entry speed, firstly use the float 52 to receive the external force, and at the same time use the plurality of connecting rods 72 to disperse the impact force, which can reduce the impact, and effectively reduce the noise and vibration, reduce the wear of other parts of the equipment caused by vibration, and reduce the maintenance cost and replacement frequency.

[0031] In addition, the diameter of the mounting plate 81 is equal to the inner diameter of the outer shell 3 , which can reduce the intrusion of water into the top of the mounting plate 81 .

[0032] Reference Figure 1-10 The diameter of the closing ball 74 is greater than the diameter of the sliding sleeve 82 . The closing ball 74 is located below the mounting plate 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 .

[0033] Specifically, a closing ball 74 is used to block the bottom of the sleeve 82 , and the diameter of the closing ball 74 is larger than the diameter of the sleeve 82 , which can ensure a sufficient sealing effect. When the connecting rod 72 moves, it will move inside the sleeve 82 , and the connecting rod 72 is located at the center of the sleeve 82 .

[0034] Reference Figure 1-10 When the shaft 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 guide groove 64. Then, when the extrusion rod 9 reaches the top of the guide groove 64, the extrusion rod 9 cannot move due to the influence of the reinforcement ring 14, and there is still a distance between the adsorption magnet 53 and the attracted magnet 84, but this distance is shorter to ensure that the adsorption magnet 53 and the attracted magnet 84 are adsorbed, and the magnetic force of the adsorption magnet 53 and the attracted magnet 84 is greater than the elastic force of the weak spring 83. Then, when the adsorption magnet 53 and the attracted magnet 84 are close to each other, the two will be adsorbed, and the mounting plate 81 will move accordingly and stretch the weak spring 83. The weak spring 83 can provide power for the return movement of the mounting plate 81. When the shaft 51 is in the set position, the attracted magnet 84 and the adsorption magnet 53 are adsorbed.

[0035] In addition, since the float 52 is located between multiple connecting rods 72, when the adsorbing magnet 53 and the attracted magnet 84 are adsorbed, the float 52 will be close to the connecting rod 72, but the two will not touch each other. Among them, the vertical length of the guide groove 64 represents the vertical distance from its lowest point to the highest point, not the internal curve length.

[0036] The working principle of the present invention is as follows: when the water level rises, the float 52 moves upward under the influence of buoyancy, and when the float 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 is restricted by the mounting tube 41 and can only move vertically. When the shaft rod 51 moves upward, it compresses the reset spring 42. At the same time, the extrusion rod 9 moves inside the guide groove 64 when it moves upward. When the extrusion rod 9 reaches the inclined section 642 of the guide groove 64, the sleeve 61 is affected by the path of the inclined section 642 and rotates. When the sleeve 61 rotates, it drives the arc piece 62 and the inclined arc block 63 to rotate synchronously. After the arc piece 62 rotates, it will be spliced ​​with the arc bar frame 10, so that the upper part of the vent hole 32 is closed first, and the inclined arc block When the arc piece 63 rotates with the arc piece 62, the inclined arc block 63 will squeeze the corresponding semicircular block 73. After being squeezed, the multiple semicircular blocks 73 will move upward. After the semicircular block 73 moves upward, it drives the collar 71, the connecting rod 72 and the closing ball 74 to move upward synchronously. The collar 71 will squeeze the return spring 12, and the return spring 12 is compressed. At the same time, the closing ball 74 will move up and get close to the plastic ring 85. At this time, the water level continues to rise, the float 52 will continue to move up, the shaft 51 and the adsorption magnet 53 will also move up accordingly. At this time, the squeezing rod 9 will reach the long vertical section 641 of the guide groove 64, so the squeezing rod 9 will not squeeze the sleeve shell 61, and when the adsorption magnet 53 moves up to the set position with the float 52, the adsorption magnet 53 will get close to the attracted magnet The iron 84 causes the adsorption magnet 53 to adsorb the receiving magnet 84. The receiving magnet 84 moves downward, driving the mounting plate 81 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 plastic rings 85 to move downward synchronously, so that the plastic rings 85 fit with the closing ball 74, so that the bottom of the sliding sleeve 82 is sealed. When the water flow drops, the floating ball 52 moves downward. When the floating ball 52 moves downward, it drives the adsorption magnet 53 to move downward. The adsorption magnet 53 is adsorbed by the receiving magnet 84, and the adsorption magnet 53 pulls the receiving magnet 84. However, since the bottom of the plastic ring 85 is blocked by the closing ball 74 and cannot move downward, the mounting plate 81 and the receiving magnet 84 cannot move downward either. Therefore, the adsorption magnet 53 is attached to the receiving magnet 84. Separation, when the attracted magnet 84 loses traction, the weak spring 83 contracts, causing the mounting plate 81 to move up, and the plastic ring 85 separates from the closing ball 74, so that the bottom of the sliding sleeve 82 is opened. At this time, if the water level rises, the transmission member 5 moves up as a whole, so that the bottom end of the sliding sleeve 82 is closed. If the water level drops, the transmission member 5 moves down as a whole. At this time, the extrusion rod 9 moves down with the shaft rod 51 to make the sleeve 61 rotate, then the arc piece 62 and the inclined arc block 63 rotate, and the inclined arc block 63 no longer squeezes the semicircular block 73, and the return spring 12 rebounds to make the ring 71 move down. At this time, the ring 71 makes the connecting rod 72, the semicircular block 73 and the closing ball 74 move down, so that the closing ball 74 is further away from the bottom of the sliding sleeve 82, and the float 52 changes with the change of water level.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A pressure-adjustable pressure vessel, comprising a pressure tank (1), characterized in that: It also includes 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 inside of the outer shell (3), an inner ring (11) arranged inside the outer shell (3), and 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); the top of the outer shell (3) is provided with an air inlet hole (31); the bottom of the outer shell (3) is provided with a plurality of vent holes (32) at equal angles; the top of the sealing member (8) is located inside the vent hole (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 closing 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 in contact with the closing member (7).

2. A pressure-adjustable pressure vessel according to claim 1, characterized in that: The limiting tube (4) comprises a mounting tube (41) fixedly connected to the top end of the interior of the outer shell (3), and a return spring (42) connected between the transmission member (5) and the outer shell (3), the top end of the transmission member (5) being located inside the mounting tube (41), and the return spring (42) being not deformed when the transmission member (5) is located at an initial position.

3. A pressure-adjustable pressure vessel according to claim 2, characterized in that: A reinforcement ring (14) is clamped on the top of the extrusion sleeve (6); the inner diameter of the reinforcement ring (14) is smaller than the length of the extrusion rod (9); the extrusion sleeve (6) is divided into a left half sleeve (601) and a right half sleeve (602); the left half sleeve (601) and the right half sleeve (602) have the same structure; the left half sleeve (601) and the right half sleeve (602) are fixedly clamped.

4. A pressure-adjustable pressure vessel according to claim 3, characterized in that: The closing member (7) comprises a collar (71) fixedly connected to a return spring (12), a plurality of semicircular blocks (73) arranged at equal angles and fixedly connected to the bottom of the collar (71), a semicircular block (73) fixedly connected to the outside of the collar (71), and a closing ball (74) fixedly connected to the bottom end of a connecting rod (72); the connecting rod (72) is slidably connected to the inside of the arc bar frame (10); the number of the connecting rods (72) is equal to that of the arc bar frame (10); the semicircular blocks (73) and the closing balls (74) correspond in number and position to the number of the connecting rods (72); and the closing balls (74) are located below the sealing member (8).

5. A pressure-adjustable pressure vessel according to claim 4, characterized in that: The left half sleeve (601) comprises a sleeve shell (61) rotatably connected to the inside of the outer shell (3), a plurality of arc pieces (62) arranged at equal angles and clamped to the bottom end of the sleeve shell (61), an inclined arc block (63) fixedly connected to the top of the arc piece (62), and a guide groove (64) provided in the sleeve shell (61), wherein the inclined arc block (63) is located below the semicircular block (73), and the inclined surface of the inclined arc block (63) is located on a side close to the semicircular block (73), and an arc notch (621) is provided on the arc piece (62), and the arc notch (621) is concentric with the arc bar frame (10) and has the same shape and size.

6. A pressure-adjustable pressure container according to claim 5, characterized in that: The guide groove (64) is divided into a long vertical section (641), an oblique section (642) and a short vertical section (643); the oblique section (642) is located between the long vertical section (641) and the short vertical section (643); the oblique sections (642) provided on the left half sleeve disc (601) and the right half sleeve disc (602) face in opposite directions; and both ends of the extrusion rod (9) are located inside the corresponding guide grooves (64).

7. The pressure-adjustable pressure container according to claim 5, characterized in that: The transmission member (5) comprises a shaft (51) having one end connected to a return spring (42), a floating ball (52) fixedly connected to the other end of the shaft (51), and a magnet (53) fixedly clamped thereon, wherein the diameter of the floating ball (52) is larger than that of the closing ball (74).

8. A pressure-adjustable pressure container according to claim 7, characterized in that: The sealing member (8) comprises a mounting plate (81) located below the outer shell (3), a plurality of sliding sleeves (82) arranged at equal angles and fixedly connected to the top of the mounting plate (81), a weak spring (83) connected between the outer shell (3) and the mounting plate (81), an attracted magnet (84) fixedly clamped at the center of the mounting plate (81), and a plastic ring (85) fixedly connected to the bottom of the mounting plate (81), wherein the plastic ring (85) is located directly below the sliding sleeve (82), and the sliding sleeve (82) is located inside the vent hole (32).

9. A pressure-adjustable pressure container according to claim 8, characterized in that: The diameter of the closing ball (74) is greater than the diameter of the sliding sleeve (82). The closing ball (74) is located below the mounting plate (81). The connecting rod (72) is located inside the sliding sleeve (82). The sliding sleeve (82) and the plastic ring (85) correspond in number and position to the closing ball (74).

10. The pressure-adjustable pressure container according to claim 8, characterized in that: When the shaft (51) is located at the initial position, the distance between the adsorbing magnet (53) and the attracted magnet (84) is slightly greater than the vertical length of the guide groove (64), the magnetic force of the adsorbing magnet (53) and the attracted magnet (84) is greater than the elastic force of the weak spring (83), and when the shaft (51) is located at the set position, the attracted magnet (84) is adsorbed to the adsorbing magnet (53).

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