Pressure tank with good sealing performance

Abstract

The utility model discloses a pressure tank with good sealing performance, which comprises a tank body and a tank neck communicated above the tank body, the top of the tank neck is rotatably provided with a top cover, the surface of one side of the tank neck is fixedly provided with a fixed block, the upper surface of the fixed block is fixedly provided with a first hinge frame, and the inside of the first hinge frame is hinged with a rotating block; the end, away from the first hinge frame, of the rotating block is fixedly connected with the top cover, a locking device is rotationally installed on the side, opposite to the rotating block, of the top cover, a pressing device is movably installed above the top cover, an air inlet pipe is arranged on the upper surface of the top cover, and a groove is formed in a tank opening in the inner side of the top of the tank neck along the circumference of the inner wall. A sealing gasket matched with the groove and the tank opening is fixedly installed on the lower surface of the top cover, a locking device is arranged on the upper surface of the top cover, the top cover can be fixedly installed on the tank neck and seals the tank neck, a pressing device is arranged above the top cover, the top cover is pressed on the tank neck through the pressing device, the sealing performance is further improved, the structure is simple, operation is convenient, and practicability is high. The practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure tanks, in particular to a pressure tank with good sealing performance. Background Art

[0002] The pressure tank is used in a closed water circulation system to balance the water volume and pressure, avoiding frequent opening of the safety valve and frequent water replenishment of the automatic water replenishment valve. In addition to accommodating the expansion water, the expansion tank can also serve as a water replenishment tank. The expansion tank is filled with air to obtain a larger volume to accommodate the expansion water. The high and low pressure expansion tanks can use their own pressure to replenish water to the pressure stabilization system in parallel. The control of each point of this device is a chain reaction, automatic operation, small pressure fluctuation range, safe and reliable, energy-saving, and good economic effect.

[0003] However, the existing pressure tank has a relatively simple structure and poor sealing performance, and it is inconvenient for the staff to maintain the inside of the pressure tank, which affects the use effect of the pressure tank. Therefore, a pressure tank with good sealing performance is needed. Utility Model Content

[0004] The utility model aims to provide a pressure tank with good sealing performance, which effectively solves the problem of poor sealing performance of the pressure tank and facilitates the maintenance of the inside of the pressure tank by the staff, has a simple structure and strong practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure tank with good sealing performance, comprising a tank body and a tank neck connected to the top of the tank body, a water outlet pipe is arranged in the middle of the bottom of the tank body, a water inlet pipe is arranged on one side of the water outlet pipe, a support column is fixedly installed on all four sides of the bottom of the tank body, a top cover is rotatably installed on the top of the tank neck, a fixed block is fixedly installed on one side surface of the tank neck, a first hinge frame is fixedly installed on the upper surface of the fixed block, a rotating block is hingedly arranged inside the first hinge frame, one end of the rotating block away from the first hinge frame is fixedly connected to the side surface of the top cover, a support block is fixedly installed in the middle of the upper surface of the top cover, a locking device is rotatably installed on the side opposite to the top cover and the rotating block, a pressing device is movably installed above the top cover, an air inlet pipe is arranged on the upper surface of the top cover, an air bag is fixedly installed inside the tank body, a groove is opened at the inner side of the tank mouth of the top of the tank neck along the circumference of the inner wall, and a sealing gasket matching the groove and the tank mouth is fixedly installed on the lower surface of the top cover.

[0006] The water outlet pipe is used to drain water from the tank body, the water inlet pipe is used to introduce water into the tank body, the air inlet pipe is used to introduce gas into the tank body, the top cover is used to seal or open the pressure tank, the top cover and the tank neck are hingedly connected through the first hinge frame and the rotating block, the locking device is used to lock the top cover and the tank neck, the pressing device presses the top cover down on the tank neck, the sealing gasket under the top cover and the groove in the tank neck are used to seal the gap between the top cover and the tank neck to avoid air leakage.

[0007] Preferably, the tops of the water outlet pipe and the water inlet pipe extend to the inner bottom of the tank body, a first sealing ring is fixedly installed at the connection between the water outlet pipe and the tank body, and a second sealing ring is fixedly installed at the connection between the water inlet pipe and the tank body. The first sealing ring seals the gap between the water outlet pipe and the tank body, and the second sealing ring seals the gap between the water inlet pipe and the tank body to prevent water from leaking out.

[0008] Preferably, a water outlet valve is fixedly installed on the water outlet pipe, a water inlet valve is fixedly installed on the water inlet pipe, and an air inlet valve is fixedly installed on the air inlet pipe. The water outlet valve is used to control the amount of water discharged, the water inlet valve is used to control the amount of water introduced, and the air inlet valve is used to control the amount of gas introduced.

[0009] Preferably, the locking device comprises a second hinged frame fixedly mounted on the upper surface of the top cover and a connecting plate hinged thereto, a buckle is provided at one end of the connecting plate away from the second hinged frame, a matching slot is provided at the top of the tank neck corresponding to the position of the buckle when the connecting plate is locked, and a handle is fixedly mounted at the lower end of the buckle. The buckle and the connecting plate can be rotated conveniently by the handle, the connecting plate is concave and its length is greater than the height when the top cover and the top of the tank neck are connected, and when the connecting plate is rotated toward the side close to the top cover, the buckle is locked in the slot, and the top cover and the tank neck can be locked.

[0010] Preferably, a sleeve is provided on one side of the tank neck where the first articulated frame and the second articulated frame are not installed, the lower part of the sleeve is fixedly installed on the upper surface of the tank body, an L-shaped rod is rotatably sleeved in the sleeve, and the end of the L-shaped rod away from the sleeve extends laterally to the side opposite to the tank neck and the sleeve.

[0011] Preferably, a support rod is provided on the side opposite to the tank neck and the sleeve, the bottom of the support rod is fixedly mounted on the upper surface of the tank body, and a placement groove matching the L-shaped rod is provided at the upper half of the support rod corresponding to the position of the L-shaped rod. The L-shaped rod can rotate in the sleeve, and when the L-shaped rod rotates to the top of the top cover, the other end is moved into the placement groove to support the L-shaped rod, and when the L-shaped rod rotates and moves away from the top cover, the top cover can be opened.

[0012] Preferably, the L-shaped rod is provided with a threaded hole at a position corresponding to the support block, a matching screw is threadedly connected in the threaded hole, a pressing block is rotatably mounted at the bottom of the screw, and a rotating cover is fixedly mounted at the top of the screw. When the L-shaped rod is rotated to the top of the top cover and supported by the placement groove, the screw is rotated to press the pressing block down onto the support block, thereby pressing the top cover onto the tank neck.

[0013] Preferably, the air inlet pipe is installed on the upper surface of the top cover on the side opposite to the opening of the placement slot, so that the air inlet pipe will not hinder the rotation of the L-shaped rod.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] The utility model improves the sealing performance of the tank body and prevents water leakage by installing a first sealing ring at the connection between the water outlet pipe and the tank body and installing a second sealing ring at the connection between the water inlet pipe and the tank body; by arranging a top cover on the tank neck, it is convenient for workers to maintain the inside of the pressure tank; by arranging a sealing pad on the lower surface of the top cover and arranging a locking device on the upper surface of the top cover, the top cover can be fixedly installed on the tank neck and seal the tank neck; by arranging a pressing device above the top cover, the pressing device presses the top cover against the tank neck, thereby further improving the sealing performance, and the utility model has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of the utility model;

[0017] Figure 2 It is a side view schematic diagram of the utility model;

[0018] Figure 3 It is a side cross-sectional schematic diagram of the utility model.

[0019] Explanation of the accompanying drawings: 1. tank body; 2. tank neck; 3. water outlet pipe; 4. water inlet pipe; 5. support column; 6. top cover; 7. fixed block; 8. first hinged frame; 9. rotating block; 10. support block; 11. locking device; 12. pressing device; 13. air inlet pipe; 14. air bag; 15. groove; 16. sealing gasket; 17. first sealing ring; 18. second sealing ring; 19. water outlet valve; 20. water inlet valve; 21. air inlet valve; 22. second hinged frame; 23. connecting plate; 24. buckle; 25. slot; 26. handle; 27. sleeve; 28. L-shaped rod; 29. ​​support rod; 30. placement groove; 31. screw; 32. pressing block; 33. rotating cover. DETAILED DESCRIPTION

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

[0021] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0022] See also Figure 1-3 The utility model provides a technical solution: it includes a tank body 1 and a tank neck 2 connected to the top of the tank body 1, a water outlet pipe 3 is provided in the middle of the bottom of the tank body 1, a water inlet pipe 4 is provided on one side of the water outlet pipe 3, a support column 5 is fixedly installed on all sides of the bottom of the tank body 1, a top cover 6 is rotatably installed on the top of the tank neck 2, a fixed block 7 is fixedly installed on one side of the tank neck 2, a first articulated frame 8 is fixedly installed on the upper surface of the fixed block 7, a rotating block 9 is hinged inside the first articulated frame 8, and the rotating block 9 is away from the first articulated frame One end of 8 is fixedly connected to the side surface of the top cover 6, a support block 10 is fixedly installed in the middle of the upper surface of the top cover 6, a locking device 11 is rotatably installed on the side opposite to the top cover 6 and the rotating block 9, a pressing device 12 is movably installed above the top cover 6, an air inlet pipe 13 is provided on the upper surface of the top cover 6, an air bag 14 is fixedly installed inside the tank body 1, a groove 15 is opened along the circumference of the inner wall at the top inner side of the tank mouth of the tank neck 2, and a sealing gasket 16 matching the groove 15 and the tank mouth is fixedly installed on the lower surface of the top cover 6.

[0023] The tops of the water outlet pipe 3 and the water inlet pipe 4 both extend to the inner bottom of the tank body 1 , a first sealing ring 17 is fixedly installed at the connection between the water outlet pipe 3 and the tank body 1 , and a second sealing ring 18 is fixedly installed at the connection between the water inlet pipe 4 and the tank body 1 .

[0024] A water outlet valve 19 is fixedly installed on the water outlet pipe 3 , a water inlet valve 20 is fixedly installed on the water inlet pipe 4 , and an air inlet valve 21 is fixedly installed on the air inlet pipe 13 .

[0025] The locking device 11 includes a second hinged frame 22 fixedly installed on the upper surface of the top cover and a connecting plate 23 hingedly connected thereto. A buckle 24 is provided at one end of the connecting plate 23 away from the second hinged frame 22. A matching slot 25 is provided at the top of the tank neck 2 corresponding to the position of the buckle 24 when the connecting plate 23 is locked. A handle 26 is fixedly installed at the lower end of the buckle 24.

[0026] A sleeve 27 is provided on one side of the tank neck 2 where the first articulated frame 8 and the second articulated frame 22 are not installed. The lower part of the sleeve 27 is fixedly installed on the upper surface of the tank body 1. An L-shaped rod 28 is rotatably sleeved in the sleeve 27. The end of the L-shaped rod 28 away from the sleeve 27 extends laterally to the side opposite to the tank neck 2 and the sleeve 27.

[0027] A support rod 29 is provided on the side opposite to the tank neck 2 and the sleeve 27 , the bottom of the support rod 29 is fixedly mounted on the upper surface of the tank body 1 , and a placement groove 30 matching the L-shaped rod 28 is provided at the upper half of the support rod 29 corresponding to the position of the L-shaped rod 28 .

[0028] A threaded hole is formed at the position of the L-shaped rod 28 corresponding to the support block 10 , and a matching screw rod 31 is threadedly connected in the threaded hole. A pressing block 32 is rotatably mounted at the bottom of the screw rod 31 , and a rotating cover 33 is fixedly mounted on the top of the screw rod 31 .

[0029] The air inlet pipe 13 is installed on the upper surface of the top cover 6 on the side opposite to the opening of the placement groove 30 .

[0030] Working principle or structural principle: When in use, the first sealing ring 17 seals the connection between the water outlet pipe 3 and the tank body 1, the second sealing ring 18 seals the connection between the water inlet pipe 4 and the tank body 1, the water outlet valve 19 controls the water outflow of the water outlet pipe 3, the water inlet valve 20 controls the water inflow of the water inlet pipe 4, and the air inlet valve 21 controls the air inflow of the air inlet pipe 13; when the staff has finished maintaining the inside of the pressure tank, the top cover 6 is pushed, and the top cover 6 is rotated through the first hinge frame 8 and the rotating block 9 and covers the tank neck 2, and the sealing gasket 16 and the concave The groove 15 fits tightly, and then the connecting plate 23 with the handle 26 is pushed to rotate, so that the buckle 24 is clamped in the groove 25, and then the L-shaped rod 28 is rotated to the placement groove 30, and finally the screw 31 is rotated to press the pressure block down to tighten the top cover 6. The device seals the gap at the connection through the first sealing ring 17, the second sealing ring 18 and the sealing gasket 16, thereby improving the sealing performance of the pressure tank, and then the locking device 11 and the clamping device 12 further improve the sealing performance between the top cover 6 and the tank neck 2. The structure is simple and practical.

[0031] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0032] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0033] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure tank with good sealing performance, comprising a tank body (1) and a tank neck (2) connected to the top of the tank body (1), characterized in that: A water outlet pipe (3) is provided in the middle of the bottom of the tank body (1), a water inlet pipe (4) is provided on one side of the water outlet pipe (3), a support column (5) is fixedly installed on all four sides of the bottom of the tank body (1), a top cover (6) is rotatably installed on the top of the tank neck (2), a fixed block (7) is fixedly installed on one side surface of the tank neck (2), a first hinged frame (8) is fixedly installed on the upper surface of the fixed block (7), a rotating block (9) is hingedly installed inside the first hinged frame (8), and an end of the rotating block (9) away from the first hinged frame (8) is fixedly connected to the side surface of the top cover (6). A support block (10) is fixedly installed in the middle of the upper surface of the top cover (6), a locking device (11) is rotatably installed on the side opposite to the top cover (6) and the rotating block (9), a pressing device (12) is movably installed above the top cover (6), an air inlet pipe (13) is provided on the upper surface of the top cover (6), an air bag (14) is fixedly installed inside the tank body (1), a groove (15) is opened along the circumference of the inner wall at the top inner side of the tank mouth of the tank neck (2), and a sealing gasket (16) matching the groove (15) and the tank mouth is fixedly installed on the lower surface of the top cover (6).

2. A pressure tank with good sealing performance according to claim 1, characterized in that: The tops of the water outlet pipe (3) and the water inlet pipe (4) both extend to the inner bottom of the tank body (1); a first sealing ring (17) is fixedly installed at the connection between the water outlet pipe (3) and the tank body (1); and a second sealing ring (18) is fixedly installed at the connection between the water inlet pipe (4) and the tank body (1).

3. A pressure tank with good sealing performance according to claim 2, characterized in that: A water outlet valve (19) is fixedly mounted on the water outlet pipe (3), a water inlet valve (20) is fixedly mounted on the water inlet pipe (4), and an air inlet valve (21) is fixedly mounted on the air inlet pipe (13).

4. A pressure tank with good sealing performance according to claim 1, characterized in that: The locking device (11) comprises a second hinged frame (22) fixedly mounted on the upper surface of the top cover and a connecting plate (23) hingedly connected thereto, a buckle (24) being provided at one end of the connecting plate (23) away from the second hinged frame (22), a matching slot (25) being provided at the top of the tank neck (2) corresponding to the position of the buckle (24) when the connecting plate (23) is locked, and a handle (26) being fixedly mounted at the lower end of the buckle (24).

5. A pressure tank with good sealing performance according to claim 1, characterized in that: A sleeve (27) is provided on one side of the tank neck (2) where the first hinge frame (8) and the second hinge frame (22) are not installed. The lower part of the sleeve (27) is fixedly installed on the upper surface of the tank body (1). An L-shaped rod (28) is rotatably sleeved in the sleeve (27). The end of the L-shaped rod (28) away from the sleeve (27) extends transversely to the side opposite to the tank neck (2) and the sleeve (27).

6. A pressure tank with good sealing performance according to claim 5, characterized in that: A support rod (29) is provided on the side opposite to the tank neck (2) and the sleeve (27), the bottom of the support rod (29) is fixedly mounted on the upper surface of the tank body (1), and a placement groove (30) matching the L-shaped rod (28) is provided at the upper half of the support rod (29) at a position corresponding to the L-shaped rod (28).

7. A pressure tank with good sealing performance according to claim 6, characterized in that: A threaded hole is provided at a position of the L-shaped rod (28) corresponding to the support block (10), a matching screw rod (31) is threadedly connected in the threaded hole, a pressing block (32) is rotatably mounted at the bottom of the screw rod (31), and a rotating cover (33) is fixedly mounted at the top of the screw rod (31).

8. A pressure tank with good sealing performance according to claim 6, characterized in that: The air inlet pipe (13) is installed on the upper surface of the top cover (6) on the side opposite to the opening of the placement groove (30).

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