Bag type pressure tank with piston type switch

By designing a piston-type switch structure and spring assembly, the problem of loosening and leakage of the bladder-type pressure tank under high pressure was solved, achieving improved sealing and stability, and ensuring the effective pressure bearing capacity of the pressure tank.

CN223497270UActive Publication Date: 2025-10-31BARNOVA PRESSURE VESSEL (SHOUGUANG) CO LTD
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Patent Information

Application Number
CN202423046780.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-10-31
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

Traditional bladder-type pressure tanks are prone to leaks during use due to excessive pressure, causing the valve at the inflation point to loosen. This results in the tank being unable to effectively withstand the pressure.

Method used

It adopts a piston-type switch structure, which uses a motor to drive a lead screw to drive a push plate and a piston rod to block the air inlet of the air inlet pipe, and uses a spring assembly to stabilize the airbag, enhance the sealing performance, and prevent the airbag from shaking.

Benefits of technology

The air intake pipe's sealing performance has been improved to prevent air leakage, ensuring that the pressure tank can effectively withstand pressure and avoiding loosening issues.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bag type pressure tank with a piston type switch, which belongs to the field of bag type pressure tanks, and comprises a tank body, an air bag is arranged in the tank body, two sides of the bottom of the tank body are respectively connected with a water inlet pipe and a water outlet pipe, and the end parts of one ends of the water inlet pipe and the water outlet pipe extend into the tank body and are connected with the air bag. Through an air inlet assembly and a stabilizing assembly, a motor is started to drive a lead screw to rotate, the lead screw rotates to drive a pushing plate to horizontally move, then the pushing plate horizontally moves to push a piston rod to move towards the interior of an air inlet pipe, and the piston rod moves to push a piston plate to move to block a butt joint ring, block an air inlet of the air inlet pipe and play a role in opening and closing the air inlet pipe; the first spring is compressed by sliding the sleeve on the side rod, the second spring is compressed by moving the compression rod towards the compression cylinder, and the influence of the air bag on the sleeve and the compression rod is weakened by using the elastic action of the first spring and the second spring, so that the air bag is prevented from greatly shaking in the tank body.
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Description

Technical Field

[0001] This utility model relates to the field of bladder pressure tank technology, and in particular to a bladder pressure tank with a piston switch. Background Technology

[0002] Pressure tanks are used in closed-loop water circulation systems to balance water volume and pressure, preventing frequent opening of safety valves and frequent replenishment of water by automatic water replenishment valves. In addition to containing expansion water, pressure tanks can also function as water replenishment tanks. By filling pressure tanks with air, they can obtain a larger volume to accommodate expansion water. High-pressure and low-pressure tanks can use their own pressure to replenish water to the pressure stabilizing system in parallel.

[0003] Traditional bladder-type pressure hoses consist of an air bladder and a tank. Air is filled between the tank and the air bladder to bear pressure. However, during use, excessive pressure can easily cause the switch at the inflation point to loosen, resulting in air leakage and rendering the pressure tank unable to bear pressure. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that traditional pressure tubes are composed of an air bladder and a tank. Air is filled between the tank and the air bladder to bear pressure. However, during use, due to excessive pressure, the switch of the air filling part is easy to loosen, causing air leakage and preventing the pressure tank from bearing pressure. Therefore, a bladder-type pressure tank with a piston switch is proposed.

[0005] To achieve the above objectives, the present invention employs the following technology: a bladder-type pressure tank with a piston-type switch, comprising a tank body, an air bladder inside the tank body, and an inlet pipe and an outlet pipe respectively connected to the two sides of the bottom of the tank body, with one end of the inlet pipe and the outlet pipe extending into the interior of the tank body and connected to the air bladder.

[0006] The air intake assembly includes an air intake pipe installed on one side of the tank surface. The interior of the air intake pipe is connected to the interior of the tank. A mating ring is fixedly connected inside the air intake pipe. An external pipe is fixedly connected to the bottom of the air intake pipe. A mounting bracket is fixedly connected to the top of the air intake pipe. A motor is fixedly connected to one side of the mounting bracket. A lead screw is connected to the output end of the motor. The other end of the lead screw is rotatably connected to one side of the inner wall of the mounting bracket. A push plate is threaded onto the surface of the lead screw. The other side of the push plate passes through the other side of the mounting bracket and is connected to a piston rod. The other end of the piston rod passes through the other end of the air intake pipe and is connected to a piston plate.

[0007] As a further description of the above technical solution: it also includes a stabilizing assembly installed on the four sides of the center of the airbag surface. The stabilizing assembly includes a mounting plate installed on the airbag surface. A side rod is fixedly connected to the center of the other side of the mounting plate. Baffles are fixedly connected to both sides of the side rod. A sleeve is sleeved on the center of the side rod surface. A pressure rod is fixedly connected to the surface of the sleeve. A first spring is fixedly connected to the top and bottom of the sleeve. The other ends of the two first springs are fixedly connected to the two baffles. A compression cylinder is located at the other end of the pressure rod. The other end of the compression cylinder is fixedly connected to the inner wall of the tank. A second spring is fixedly connected to the surface of the other end of the pressure rod. Slide grooves are provided at the top and bottom of the surface of the compression cylinder. Sliders adapted to the slide grooves are fixedly connected to the top and bottom of the surface of the pressure rod.

[0008] As a further description of the above technical solution: a filter mechanism is fixedly connected to the other end of the water inlet pipe, and valves are provided on the surfaces of the water inlet pipe and the water outlet pipe.

[0009] As a further description of the above technical solution: a mounting ring is fixedly connected to the surface of the tank, and support frames are fixedly connected to both sides of the surface of the mounting ring.

[0010] As a further description of the above technical solution: the filtration mechanism includes a filter cylinder, and guide grooves are provided on both sides of the inner wall of the filter cylinder. A filter screen plate is slidably connected inside the guide groove. A rotating rod is rotatably connected to the middle of the filter screen plate. A brush plate is fixedly connected to the top and bottom of the rotating rod surface.

[0011] As a further description of the above technical solution: the airbag is located at the very center of the tank.

[0012] As a further description of the above technical solution: both the top of the filter cylinder and the other end of the water outlet pipe are fixedly connected to flanges.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] With the inclusion of an air intake assembly and a stabilizing assembly, the motor starts and drives the lead screw to rotate. The rotation of the lead screw causes the push plate to move horizontally. The horizontal movement of the push plate then pushes the piston rod into the air intake pipe. The piston rod then moves the piston plate to block the connecting ring, thereby sealing the air intake port of the air intake pipe and acting as a switch to enhance its sealing performance. Simultaneously, the sleeve slides on the side rod to compress the first spring, while the pressure rod moves towards the compression cylinder to compress the second spring. The elasticity of the first and second springs weakens the influence of the airbag on the sleeve and pressure rod, thus preventing the airbag from shaking significantly inside the tank. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0016] Figure 2 A schematic diagram of the cross-sectional structure of the tank according to an embodiment of the present invention is shown;

[0017] Figure 3 A schematic diagram of the structure of the air intake assembly provided according to an embodiment of the present invention is shown;

[0018] Figure 4 A schematic diagram of the structure of a stabilizing component provided according to an embodiment of the present invention is shown.

[0019] Legend:

[0020] 1. Tank body; 101. Inlet pipe; 102. Outlet pipe; 2. Airbag; 3. Air intake assembly; 301. Air intake pipe; 302. Connecting ring; 303. External pipe; 304. Mounting bracket; 305. Motor; 306. Lead screw; 307. Push plate; 308. Piston rod; 309. Piston plate; 4. Stabilizing assembly; 401. Mounting plate; 402. Side rod; 403. Baffle; 404. Sleeve; 405. Pressure rod; 406. First spring; 407. Compression cylinder; 408. Second spring; 5. Filtration mechanism; 501. Filter cylinder; 502. Filter screen; 503. Rotating rod; 504. Brush plate; 6. Mounting ring; 7. Support frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-4 This embodiment provides a bladder-type pressure tank with a piston switch, including a tank body 1, an air bladder 2 inside the tank body 1, and an inlet pipe 101 and an outlet pipe 102 connected to the two sides of the bottom of the tank body 1, respectively. One end of the inlet pipe 101 and the outlet pipe 102 extends into the tank body 1 and is connected to the air bladder 2.

[0023] The air intake assembly 3 includes an air intake pipe 301 installed on one side of the surface of the tank body 1. The interior of the air intake pipe 301 is connected to the interior of the tank body 1. A docking ring 302 is fixedly connected inside the air intake pipe 301. An outer pipe 303 is fixedly connected to the bottom of the air intake pipe 301. A mounting bracket 304 is fixedly connected to the top of the air intake pipe 301. A motor 305 is fixedly connected to one side of the mounting bracket 304. A lead screw 306 is connected to the output end of the motor 305. The other end of the lead screw 306 is rotatably connected to one side of the inner wall of the mounting bracket 304. A push plate 307 is threadedly connected to the surface of the lead screw 306. The other side of the push plate 307 passes through the other side of the mounting bracket 304 and is connected to a piston rod 308. The other end of the piston rod 308 passes through the other end of the air intake pipe 301 and is connected to a piston plate 309.

[0024] The motor 305 starts and drives the lead screw 306 to rotate. The rotation of the lead screw 306 drives the push plate 307 to move horizontally. Then, the horizontal movement of the push plate 307 pushes the piston rod 308 to move into the air intake pipe 301. Then, the movement of the piston rod 308 pushes the piston plate 309 to move and block the docking ring 302, thereby blocking the air intake of the air intake pipe 301 and acting as a switch for the air intake pipe 301.

[0025] Specifically, such as Figure 2 and Figure 4 As shown, it also includes a stabilizing assembly 4 installed on the four sides of the center of the surface of the airbag 2. The stabilizing assembly 4 includes a mounting plate 401 installed on the surface of the airbag 2. A side rod 402 is fixedly connected to the center of the other side of the mounting plate 401. Baffles 403 are fixedly connected to both sides of the side rod 402. A sleeve 404 is sleeved on the center of the surface of the side rod 402. A pressure rod 405 is fixedly connected to the surface of the sleeve 404. A first spring 406 is fixedly connected to the top and bottom of the sleeve 404. The other ends of the two first springs 406 are fixedly connected to the two baffles 403. A compression cylinder 407 is provided at the other end of the pressure rod 405. The other end of the compression cylinder 407 is fixedly connected to the inner wall of the tank 1. A second spring 408 is fixedly connected to the surface of the other end of the pressure rod 405. Slide grooves are provided at the top and bottom of the surface of the compression cylinder 407. Sliders that are adapted to the slide grooves are fixedly connected to the top and bottom of the surface of the pressure rod 405.

[0026] Specifically, the first spring 406 is compressed by the sliding of the sleeve 404 on the side rod 402, while the pressure rod 405 moves towards the compression cylinder 407 to compress the second spring 408. The elastic effect of the first spring 406 and the second spring 408 is used to weaken the influence of the airbag 2 on the sleeve 404 and the pressure rod 405, thereby preventing the airbag 2 from shaking significantly inside the tank 1.

[0027] Specifically, such as Figure 3As shown, a filter mechanism 5 is fixedly connected to the other end of the water inlet pipe 101, and valves 8 are provided on the surfaces of the water inlet pipe 101 and the water outlet pipe 102.

[0028] The inlet water of the inlet pipe 101 and the outlet water of the outlet pipe 102 are controlled by valve 8.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, a mounting ring 6 is fixedly connected to the surface of the tank body 1, and a support frame 7 is fixedly connected to both sides of the surface of the mounting ring 6.

[0030] Specifically, such as Figure 3 As shown, the filtration mechanism 5 includes a filter cylinder 501. Guide grooves are provided on both sides of the inner wall of the filter cylinder 501. A filter screen plate 502 is slidably connected inside the guide groove. A rotating rod 503 is rotatably connected to the middle of the filter screen plate 502. A brush plate 504 is fixedly connected to the top and bottom of the surface of the rotating rod 503.

[0031] The filter screen 502 filters the water and can be removed from the filter cylinder 501. After removal, the rotating rod 503 can be rotated to drive the brush plate 504 to clean the filter screen 502.

[0032] Specifically, such as Figure 2 As shown, the airbag 2 is located at the exact center of the tank 1.

[0033] Specifically, such as Figure 3 As shown, flanges are fixedly connected to the top of the filter cylinder 501 and the other end of the outlet pipe 102.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bladder-type pressure tank with a piston switch, comprising a tank body (1), an air bladder (2) disposed inside the tank body (1), an inlet pipe (101) and an outlet pipe (102) respectively connected to the two sides of the bottom of the tank body (1), and one end of the inlet pipe (101) and the outlet pipe (102) extending into the interior of the tank body (1) and connected to the air bladder (2); The air intake assembly (3) includes an air intake pipe (301) installed on one side of the surface of the tank (1). The interior of the air intake pipe (301) is connected to the interior of the tank (1). A docking ring (302) is fixedly connected inside the air intake pipe (301). An external pipe (303) is fixedly connected to the bottom of the air intake pipe (301). A mounting bracket (304) is fixedly connected to the top of the air intake pipe (301). A motor (305) is fixedly connected to one side of the mounting bracket (304). The output end of the motor (305) is connected to a lead screw (306). The other end of the lead screw (306) is rotatably connected to one side of the inner wall of the mounting bracket (304). The surface of the lead screw (306) is threaded with a push plate (307). The other side of the push plate (307) passes through the other side of the mounting bracket (304) and is connected to a piston rod (308). The other end of the piston rod (308) passes through the other end of the air intake pipe (301) and is connected to a piston plate (309).

2. A bladder-type pressure tank with a piston-type switch according to claim 1, characterized in that, It also includes a stabilizing assembly (4) installed on the four sides of the center of the airbag (2) surface. The stabilizing assembly (4) includes a mounting plate (401) installed on the surface of the airbag (2). A side rod (402) is fixedly connected to the center of the other side of the mounting plate (401). Baffles (403) are fixedly connected to both sides of the side rod (402). A sleeve (404) is sleeved on the center of the surface of the side rod (402). A pressure rod (405) is fixedly connected to the surface of the sleeve (404). The top and bottom of the sleeve (404) are fixedly connected to... There is a first spring (406), and the other ends of the two first springs (406) are fixedly connected to two baffles (403). The other end of the pressure rod (405) has a compression cylinder (407), and the other end of the compression cylinder (407) is fixedly connected to the inner wall of the tank (1). The surface of the other end of the pressure rod (405) is fixedly connected to a second spring (408). The top and bottom of the surface of the compression cylinder (407) are provided with sliding grooves, and the top and bottom of the surface of the pressure rod (405) are fixedly connected to sliders that are adapted to the sliding grooves.

3. A bladder-type pressure tank with a piston-type switch according to claim 1, characterized in that, The other end of the water inlet pipe (101) is fixedly connected to a filter mechanism (5), and valves (8) are provided on the surface of the water inlet pipe (101) and the water outlet pipe (102).

4. A bladder-type pressure tank with a piston-type switch according to claim 1, characterized in that, The surface of the tank (1) is fixedly connected to an installation ring (6), and the two sides of the surface of the installation ring (6) are fixedly connected to a support frame (7).

5. A bladder-type pressure tank with a piston-type switch according to claim 3, characterized in that, The filtration mechanism (5) includes a filter cylinder (501). Guide grooves are provided on both sides of the inner wall of the filter cylinder (501). A filter screen plate (502) is slidably connected inside the guide groove. A rotating rod (503) is rotatably connected to the middle of the filter screen plate (502). A brush plate (504) is fixedly connected to the top and bottom of the surface of the rotating rod (503).

6. A bladder-type pressure tank with a piston-type switch according to claim 1, characterized in that, The airbag (2) is located at the center of the tank (1).

7. A bladder-type pressure tank with a piston-type switch according to claim 5, characterized in that, Flanges are fixedly connected to the top of the filter cylinder (501) and the other end of the outlet pipe (102).