Self-closed overflow device of water tank

Abstract

The utility model discloses a self-closing overflow device of a water tank, which relates to the technical field of water tank overflow, and comprises a water tank, one end of the water tank is connected with an overflow pipe in a penetrating manner, the outer side wall of the overflow pipe is fixedly connected with a plurality of groups of pipeline support frames, the bottom end of the overflow pipe is fixedly connected with an extension pipe, and the tail end of the extension pipe is in threaded connection with an external mounting sleeve; a protection mechanism is arranged in the external mounting sleeve, a water outlet is formed in the tail end of the external mounting sleeve, a water inlet bin is formed in the joint of the overflow pipe and the extension pipe, a self-closing mechanism is arranged in the water inlet bin, when the water level is too high, water flows into the overflow pipe and enables the floating ball to float, the floating ball ascends to open the overflow pipe, and it is ensured that redundant water can be drained in time; and when no water flow exists, the floating ball is kept in the original position, the overflow pipe is closed, the water flow can be prevented from flowing back, small insects can be prevented from entering the water tank, and a water source in the water tank is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of water tank overflow, in particular to a self-closing overflow device of a water tank. Background Art

[0002] Existing high-rise building water supply systems are typically tank-type, atmospheric-pressure water supply systems. These systems consist of a water tank where tap water is stored before being pressurized and supplied to users. The pressure inside the tank is kept at atmospheric pressure, and the tank is typically equipped with an overflow device on its side.

[0003] In the water supply sector, water tanks are often required to ensure the continuity and safety of water supply. As a temporary storage tool for users, prolonged use often leads to secondary contamination of the water inside the tank due to dust, insects, flies, etc. entering through the overflow port. Furthermore, if the overflow pipe remains stationary for a long time, external dust can enter the inner wall of the overflow pipe, contaminating the water source as it flows out. Large impurities may accidentally enter the overflow pipe, causing blockage and preventing the excess water from being discharged, causing certain problems.

[0004] Therefore, those skilled in the art provide a self-closing overflow device for a water tank to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to provide a self-closing overflow device for a water tank to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A self-closing overflow device for a water tank comprises a water tank, a self-closing mechanism and a protective mechanism, wherein an overflow pipe is connected through one end of the water tank, a plurality of pipe support frames are fixedly connected to the outer wall of the overflow pipe, an extension pipe is fixedly connected to the bottom end of the overflow pipe, an external mounting sleeve is threadedly connected to the end of the extension pipe, a protective mechanism is arranged in the external mounting sleeve, a water outlet is provided at the end of the external mounting sleeve, a water inlet bin is provided at the connection between the overflow pipe and the extension pipe, and a self-closing mechanism is arranged in the water inlet bin.

[0008] As a further solution of the present invention: a drain outlet is provided at one end of the water inlet bin close to the overflow pipe, a support plate is fixedly connected to the water inlet bin, a ball groove is provided at the center position of the support plate, a float is movably connected in the ball groove, a pair of symmetrically arranged first return springs are fixedly connected to the top of the water inlet bin, and the ends of the two groups of first return springs are fixedly connected to a downward pressing arc plate.

[0009] As a further solution of the present invention: the external mounting sleeve is internally movably connected with two groups of mounting frames, a solid filter is provided in the mounting frame at one end, and an impurity filter is provided in the mounting frame at the other end. The upper ends of the mounting frames are fixedly connected with pull rods, and two groups of second limit grooves are provided at the upper end of the external mounting sleeve and the pull rods are all located in the second limit grooves. The inner walls of the left and right ends of the second limit grooves are fixedly connected with second return springs, and the ends of the second return springs are fixedly connected to the limit plates and the limit plates are both in contact with the pull rods.

[0010] As a further solution of the present invention: the bottom end of the mounting frame is fixedly connected to a torsion spring, the bottom end of the torsion spring is fixedly connected to a rotating rod, a pair of symmetrically arranged first limit grooves are provided at the bottom end of the external mounting sleeve, and a clamping slot is provided at both the left and right ends of the first limit groove, and the left and right ends of the rotating rod are fixedly connected to an L-shaped clamping rod, and the L-shaped clamping rod and the clamping slot are movably clamped.

[0011] As a further solution of the present invention: a sealing sleeve is provided on the outer side of the first limiting groove and the second limiting groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] Because of the self-closing mechanism, when the water level is too high, the water flows into the overflow pipe and the float rises, and the rising float can open the overflow pipe to ensure that excess water can be discharged in time to prevent losses caused by overflow of the water tank. When there is no water flow, the float remains in place and the overflow pipe is closed to prevent water from flowing back and small insects from entering the water tank, thereby protecting the water source in the water tank. Because of the protective mechanism, the solid filter can effectively block large external impurities to prevent them from entering the water tank, keeping the water quality clean. Regular cleaning of the filter can avoid the accumulation of impurities, thereby reducing the wear on other components. The detachable design allows staff to easily perform maintenance, reducing the complexity and labor intensity of maintenance. Regular cleaning of the filter can avoid the accumulation of impurities, ensure smooth water flow, and reduce poor water flow caused by blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a structural diagram of a self-closing overflow device for a water tank.

[0015] Figure 2 The figure is a schematic side cross-sectional structural diagram of a self-closing overflow device of a water tank.

[0016] Figure 3 This is a schematic diagram of the enlarged structure of point A in a self-closing overflow device of a water tank.

[0017] Figure 4 This is a schematic diagram of the enlarged structure of point B in a self-closing overflow device of a water tank.

[0018] In the figure: 1. Water tank; 2. Overflow pipe; 3. Pipe support frame; 4. Extension pipe; 5. External mounting sleeve; 6. Water outlet; 7. Water inlet tank; 8. Support plate; 9. Ball groove; 10. Drain outlet; 11. Float; 12. First return spring; 13. Downward pressure arc plate; 14. Mounting frame; 15. Solid filter; 16. Impurity filter; 17. Pull rod; 18. Second return spring; 19. Limit plate; 20. Torsion spring; 21. Turn rod; 22. L-shaped clamping rod; 23. Clamping slot; 24. First limit slot; 25. Second limit slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] Reference Figure 1-4 The embodiment provides a self-closing overflow device for a water tank, comprising a water tank 1, an overflow pipe 2, a pipe support frame 3, an extension pipe 4, an external mounting sleeve 5, a water outlet 6, a water inlet tank 7, a support plate 8, a ball groove 9, a drain outlet 10, a float 11, a first return spring 12, a downward pressure arc plate 13, a mounting frame 14, a solid filter 15, an impurity filter 16, a pull rod 17, a second return spring 18, a limit plate 19, a torsion spring 20, a rotating rod 21, an L-shaped clamping rod 22, a clamping rod 23, a Groove 23, a first limiting groove 24, and a second limiting groove 25; one end of the water tank 1 is connected with an overflow pipe 2, and the outer side wall of the overflow pipe 2 is fixedly connected with multiple sets of pipe support frames 3, the bottom end of the overflow pipe 2 is fixedly connected with an extension pipe 4, and the end of the extension pipe 4 is threadedly connected with an external mounting sleeve 5, and a protective mechanism is provided in the external mounting sleeve 5. A water outlet 6 is provided at the end of the external mounting sleeve 5, and a water inlet bin 7 is provided at the connection between the overflow pipe 2 and the extension pipe 4, and a self-closing mechanism is provided in the water inlet bin 7.

[0022] Example 2

[0023] Reference Figure 1 、 2 3. This embodiment is based on the previous embodiment and differs from the previous embodiment in that a drain port 10 is provided at one end of the water inlet bin 7 near the overflow pipe 2, a support plate 8 is fixedly connected to the water inlet bin 7, a ball groove 9 is provided at the exact center of the support plate 8, a float 11 is movably engaged in the ball groove 9, a pair of symmetrically arranged first return springs 12 are fixedly connected to the top of the water inlet bin 7, and downward-pressing arc plates 13 are fixedly connected to the ends of the two sets of first return springs 12;

[0024] The excess water in the water tank 1 will flow out from the overflow pipe 2. When the water flows into the water inlet bin 7 of the overflow pipe 2 and enters from the water inlet, the float 11 will float up due to the pressure and impact of the water. When the float 11 rises, it pushes up the downward pressure arc plate 13 at the upper end. The downward pressure arc plate 13 is subjected to the elastic force of the first return spring 12 at the upper end and contracts, so that the water can enter the extension pipe 4 through the ball groove 9 of the support plate 8, and finally be discharged from the water outlet 6 after being loaded into the external mounting sleeve 5.

[0025] Example 3

[0026] Reference Figure 1 、 2 4. This embodiment is based on the previous embodiment, and differs from the previous embodiment in that the external mounting sleeve 5 is internally movably connected with two sets of mounting frames 14, a solid filter 15 is provided in the mounting frame 14 at one end, and an impurity filter 16 is provided in the mounting frame 14 at the other end. The upper ends of the mounting frames 14 are fixedly connected with pull rods 17, and the upper end of the external mounting sleeve 5 is provided with two sets of second limiting grooves 25 and the pull rods 17 are all located in the second limiting grooves 25. The inner walls of the left and right ends of the second limiting grooves 25 are fixedly connected with second return springs 18, and the second return springs The ends of 18 are fixedly connected to the limit plates 19 and the limit plates 19 are in contact with the pull rods 17. The bottom ends of the mounting frames 14 are fixedly connected to the torsion springs 20, and the bottom ends of the torsion springs 20 are fixedly connected to the rotating rods 21. The bottom end of the external mounting sleeve 5 is provided with a pair of symmetrically arranged first limit grooves 24, and the left and right ends of the first limit grooves 24 are provided with card slots 23. The left and right ends of the rotating rod 21 are fixedly connected with L-shaped card rods 22, and the L-shaped card rods 22 are movably connected to the card slots 23. The outsides of the first limit grooves 24 and the second limit grooves 25 are both provided with sealing sleeves.

[0027] The staff can thread the external mounting sleeve 5 to the end of the extension tube 4. After installation, large impurities on the outside will be blocked by the solid filter 15, and dust and debris will be blocked by the impurity filter 16. After a period of use, the external mounting sleeve 5 can be removed as a whole, the sealing sleeve can be removed, and the rotating rod 21 at the bottom can be rotated. The rotating rod 21 is rotated by the force of the torsion spring 20. When it is rotated ninety degrees, the L-shaped clamping rod 22 can be disengaged from the clamping groove 23 of the first limit groove 24. At this time, the pull rod 17 at the upper end is pulled, and the limit plate 19 is retracted backward by the elastic force of the second reset spring 18, and then the mounting frame 14 can be removed to maintain the solid filter 15 and the impurity filter 16 at the upper end.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A self-closing overflow device for a water tank, comprising a water tank (1), a self-closing mechanism and a protective mechanism, characterized in that: One end of the water tank (1) is connected to an overflow pipe (2), the outer wall of the overflow pipe (2) is fixedly connected to multiple groups of pipe support frames (3), the bottom end of the overflow pipe (2) is fixedly connected to an extension pipe (4), the end of the extension pipe (4) is threadedly connected to an external mounting sleeve (5), a protective mechanism is provided in the external mounting sleeve (5), a water outlet (6) is provided at the end of the external mounting sleeve (5), a water inlet bin (7) is provided at the connection between the overflow pipe (2) and the extension pipe (4), and a self-closing mechanism is provided in the water inlet bin (7).

2. A self-closing overflow device for a water tank according to claim 1, characterized in that: The self-closing mechanism includes a float (11); a drain outlet (10) is provided at one end of the water inlet bin (7) close to the overflow pipe (2); a support plate (8) is fixedly connected to the water inlet bin (7); and a ball groove (9) is provided at the center of the support plate (8).

3. The self-closing overflow device of a water tank according to claim 2, characterized in that: A floating ball (11) is movably engaged in the ball groove (9), a pair of symmetrically arranged first return springs (12) are fixedly connected to the top of the water inlet bin (7), and the ends of the two groups of first return springs (12) are fixedly connected to downward pressing arc plates (13).

4. The self-closing overflow device of a water tank according to claim 1, characterized in that: The protective mechanism comprises a solid filter (15) and an impurity filter (16); two sets of mounting frames (14) are movably connected inside the external mounting sleeve (5); the solid filter (15) is arranged in the mounting frame (14) at one end, and the impurity filter (16) is arranged in the mounting frame (14) at the other end.

5. The self-closing overflow device of a water tank according to claim 4, characterized in that: The upper end of the installation frame (14) is fixedly connected to a pull rod (17), the upper end of the external installation sleeve (5) is provided with two groups of second limiting grooves (25) and the pull rods (17) are located in the second limiting grooves (25), the inner walls of the left and right ends of the second limiting grooves (25) are fixedly connected to second return springs (18), the ends of the second return springs (18) are fixedly connected to the limiting plates (19), and the limiting plates (19) are in contact with the pull rods (17).

6. The self-closing overflow device of a water tank according to claim 4, characterized in that: The bottom end of the installation frame (14) is fixedly connected to a torsion spring (20), and the bottom end of the torsion spring (20) is fixedly connected to a rotating rod (21). The bottom end of the external installation sleeve (5) is provided with a pair of symmetrically arranged first limiting grooves (24), and the left and right ends of the first limiting grooves (24) are provided with clamping grooves (23). The left and right ends of the rotating rod (21) are fixedly connected to L-shaped clamping rods (22), and the L-shaped clamping rods (22) are movably clamped to the clamping grooves (23).

7. The self-closing overflow device of a water tank according to claim 6, characterized in that: The first limiting groove (24) and the second limiting groove (25) are both sleeved with sealing sleeves on their outer sides.

Images