Filtering device of non-negative pressure water supply equipment

Abstract

The utility model discloses a filtering device of non-negative pressure water supply equipment, and relates to the technical field of water supply equipment. The water supply device comprises a water supply cylinder, a supporting plate is arranged on one side of the water supply cylinder, filter boxes are symmetrically and fixedly connected to the top end, close to the center, of the supporting plate, valves are fixedly connected to the top ends, close to the center, of the filter boxes, a U-shaped mounting frame is fixedly connected between the inner walls of the two sides of the filter boxes, and a filter screen is arranged in the center of the U-shaped mounting frame. A limiting block is slidably inserted in the center of the top end of the filter box, the bottom end of the limiting block is fixedly connected with the filter screen, a mounting box is fixedly connected to the position, close to the center of the limiting block, of the top end of the filter box, and an inserting piece is slidably inserted in the side end, close to the limiting block, of the mounting box; according to the utility model, the two filter cartridges and the corresponding valves are arranged, so that when one filter screen needs to be overhauled or replaced, the corresponding valve can be closed, and a water body is filtered from the other filter cartridge, thereby avoiding shutdown when the filter screen is replaced, and ensuring the continuity of water supply.

Description

Technical Field

[0001] This utility model relates to the field of water supply equipment technology, specifically a filtration device for a negative pressure-free water supply system. Background Technology

[0002] Negative pressure-free water supply equipment is a type of pressurized water supply unit that is directly connected to the municipal water supply network. It uses the residual pressure of the municipal network to provide superimposed pressure in series to ensure that the pressure of the municipal network is not less than the set protection pressure (the set pressure must be higher than the pressure requirement of the direct supply area of ​​the community, generally not less than 1.2Kg).

[0003] Most water supply equipment uses a single filtration structure. After long-term use, the filter screen will become clogged due to the accumulation of impurities, resulting in a decrease in filtration efficiency. At this time, it is necessary to stop the machine, disassemble the filter box, replace or clean the filter screen, which will cause a local water supply interruption. Especially in high-rise buildings, hospitals, factories and other scenarios with high requirements for continuous water supply, downtime for maintenance may cause inconvenience in water use. In order to solve the above problems, the inventor proposes a filtration device for a negative pressure-free water supply equipment. Utility Model Content

[0004] To address the issue that filter efficiency decreases due to impurity buildup after prolonged use, and that disassembling the filter box to replace or clean the filter screen during shutdown causes regional water supply interruptions, this utility model aims to provide a filtration device for a negative pressure-free water supply system.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a filtration device for a negative pressure-free water supply equipment, comprising a water supply cylinder, a support plate provided on one side of the water supply cylinder, a filter box symmetrically and fixedly connected to the top of the support plate near the center, a valve fixedly connected to the top of the filter box near the center, a U-shaped mounting bracket fixedly connected between the inner walls of the two sides of the filter box, a filter screen provided at the center of the U-shaped mounting bracket, a limiting block slidably inserted at the center of the top of the filter box, and the bottom end of the limiting block fixedly connected to the filter screen, an installation box fixedly connected to the top of the filter box near the center of the limiting block, an inserting component slidably inserted on one side of the installation box near the limiting block, and an insertion hole provided on one side of the limiting block near the installation box, the insertion hole being adapted to the inserting component.

[0006] Preferably, a connecting pipe 1 is fixedly connected to the upper part of the water supply cylinder near one side, and a connecting pipe 2 is fixedly connected to the center of the bottom end of the filter box, and both connecting pipes 2 are fixedly connected to the connecting pipe 1.

[0007] Preferably, the mounting box has symmetrical sliding grooves on both sides near the center, and a connecting block is slidably connected inside the sliding groove. The connecting block is fixedly connected to the insert. A vertical plate is fixedly connected to the top of the mounting box near the center of one side, and a mounting rod is fixedly connected to the center of the vertical plate.

[0008] Preferably, springs are symmetrically fixedly connected to both ends of the mounting rod, and the other end of the spring is fixedly connected to the connecting block. An L-shaped mounting plate is fixedly connected to the side end of the mounting box near the connecting block. A cam is rotatably connected to the side end of the L-shaped mounting plate near the mounting box, and the cam cooperates with the connecting block.

[0009] Preferably, a rotating handle is rotatably connected to the side of the L-shaped mounting plate away from the mounting box, and one end of the rotating handle passes through the L-shaped mounting plate and is fixedly connected to the cam.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. In this utility model, by equipping two filter boxes and corresponding valves, when one of the filter screens needs to be repaired or replaced, the corresponding valve can be closed, so that the water is filtered from the other filter box, avoiding downtime when replacing the filter screen and ensuring the continuity of water supply.

[0012] 2. In this utility model, the rotating mechanism drives the cam to rotate, which in turn moves the connecting block in the sliding groove and stretches the spring, causing the insert to disengage from the insertion hole. This allows the limit block and filter screen to be easily removed for replacement or maintenance, improving the efficiency of replacement and maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the filter box of this utility model.

[0016] Figure 3 This is a schematic diagram of the U-shaped mounting bracket structure of this utility model.

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Water supply cylinder; 11. Connecting pipe one; 12. Connecting pipe two; 2. Support plate; 21. Filter box; 22. Limiting block; 23. Filter screen; 24. U-shaped mounting bracket; 25. Valve; 26. Insertion hole; 3. Mounting box; 31. Insertion piece; 32. Sliding groove; 33. Connecting block; 34. Vertical plate; 35. Spring; 36. L-shaped mounting plate; 37. Cam; 38. Mounting rod. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1-5 As shown, this utility model provides a technical solution: a filtration device for a negative pressure-free water supply system, including a water supply cylinder 1, a support plate 2 on one side of the water supply cylinder 1, a filter box 21 symmetrically fixedly connected to the top of the support plate 2 near the center, a valve 25 fixedly connected to the top of the filter box 21 near the center, an inlet pipe above the valve 25, a U-shaped mounting bracket 24 fixedly connected between the inner walls of the two sides of the filter box 21, a square groove opened in the center of the U-shaped mounting bracket 24, and a sealing element can be set according to actual needs, a filter screen 23 is installed in the square frame, the square frame descends under the action of the limiting block 22 to squeeze the sealing element, the filter screen 23 is provided in the center of the U-shaped mounting bracket 24, the style of the filter screen 23 can be selected according to actual use needs, and a sliding... A limiting block 22 is inserted, and the bottom end of the limiting block 22 is fixedly connected to the filter screen 23. A mounting box 3 is fixedly connected to the top of the filter box 21 near the center of the limiting block 22. An insert 31 is slidably inserted into the side end of the mounting box 3 near the limiting block 22. One end of the insert 31 passes through the mounting box 3, and the other end is inside the mounting box 3. A circular locking post is provided on the side end of the insert 31. The insertion hole 26 is at the same level as the circular locking post. An insertion hole 26 is opened on the side end of the limiting block 22 near the mounting box 3, and the insertion hole 26 is adapted to the insert 31. The electrical components in this application and their adapted power supply are electrically connected through wires. And a suitable controller should be selected according to the actual situation to meet the control requirements. The detailed connection means are known in the art.

[0022] A connecting pipe 11 is fixedly connected to the top of the water supply cylinder 1 near one side.

[0023] By adopting the above technical solution, a connecting pipe 11 is installed above the water supply cylinder 1 to connect with two connecting pipes 12.

[0024] A connecting pipe 22 is fixedly connected to the center of the bottom end of the filter box 21, and both connecting pipes 22 are fixedly connected to the connecting pipe 11.

[0025] By adopting the above technical solution, a connecting pipe 22 is installed at the bottom of the filter box 21 in order to transport the filtered water to the inside of the water supply cylinder 1 through the connecting pipe 11.

[0026] The mounting box 3 has symmetrical sliding grooves 32 on both sides near the center. A connecting block 33 is slidably connected inside the sliding groove 32, and the connecting block 33 is fixedly connected to the insert 31.

[0027] By adopting the above technical solution, sliding grooves 32 are symmetrically opened on both sides of the mounting box 3 to facilitate the sliding of the connecting block 33.

[0028] A vertical plate 34 is fixedly connected to the top of the mounting box 3 and near the center of one side, and a mounting rod 38 is fixedly connected to the center of the inside of the vertical plate 34.

[0029] By adopting the above technical solution, a vertical plate 34 is set at the center of the top of the mounting box 3 to fix the mounting rod 38. With the help of the spring 35, the connecting block 33 can drive the sliding groove 32 to be inserted into the insertion hole 26.

[0030] Springs 35 are symmetrically fixedly connected to both ends of the mounting rod 38, and the other end of the spring 35 is fixedly connected to the connecting block 33.

[0031] By adopting the above technical solution, a protective cover can be installed at the top of the filter box 21 and at the mounting box 3 to protect components such as the spring 35, thereby extending their service life.

[0032] An L-shaped mounting plate 36 is fixedly connected to the side of the mounting box 3 near the connecting block 33. A cam 37 is rotatably connected to the side of the L-shaped mounting plate 36 near the mounting box 3, and the cam 37 cooperates with the connecting block 33.

[0033] By adopting the above technical solution, an L-shaped mounting plate 36 is provided on the side of the mounting box 3 to facilitate the installation of the cam 37, and the cam 37 and the connecting block 33 are at the same level.

[0034] A rotating handle is rotatably connected to the side of the L-shaped mounting plate 36 away from the mounting box 3, and one end of the rotating handle passes through the L-shaped mounting plate 36 and is fixedly connected to the cam 37.

[0035] By adopting the above technical solution and selecting a rotary handle, the fixed connecting cam 37 can be rotated.

[0036] Working principle: When this device is in use, firstly, the two valves 25 are connected to the water inlet pipe. The water enters the filter box 21 through the valves 25 and is filtered by the filter screen 23. After filtration, it is transported to the connecting pipe 11 through the two connecting pipes 22 and finally flows into the water supply cylinder 1.

[0037] When one of the filter screens 23 needs maintenance or replacement, first close the corresponding valve 25 to allow the water to be filtered through the other filter box 21. Then, rotate one of the handles to rotate the fixedly connected cam 37, thereby moving the connecting block 33 in the sliding groove 32 and completing the work of the tension spring 35. This allows the insert 31 to move out of the insertion hole 26, at which point the limit block 22 and filter screen 23 can be removed for replacement or maintenance. When installing the limit block 22 and filter screen 23, first reset them inside the filter box 21, then rotate the cam 37 again. When the longer part of the cam 37 releases its contact with the connecting block 33, the connecting block 33 and the insert 31 will reset and move into the insertion hole 26 under the action of the spring 35, thus completing the replacement of the filter screen 23. At this point, open the upper valve 25. This avoids the need to stop the machine when replacing the filter screen 23.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A filtration device for a negative pressure-free water supply system, comprising a water supply cylinder (1), characterized in that: A support plate (2) is provided on one side of the water supply cylinder (1). A filter box (21) is symmetrically fixedly connected to the top of the support plate (2) near the center. A valve (25) is fixedly connected to the top of the filter box (21) near the center. A U-shaped mounting bracket (24) is fixedly connected between the inner walls on both sides of the filter box (21). A filter screen (23) is provided at the center of the U-shaped mounting bracket (24). A limiting block (22) is slidably inserted at the center of the top of the filter box (21), and the bottom end of the limiting block (22) is fixedly connected to the filter screen (23). An installation box (3) is fixedly connected at the top of the filter box (21) near the center of the limiting block (22). An insert (31) is slidably inserted at one side of the installation box (3) near the limiting block (22). An insertion hole (26) is opened at one side of the limiting block (22) near the installation box (3), and the insertion hole (26) is compatible with the insert (31).

2. The filtration device for a negative pressure-free water supply system as described in claim 1, characterized in that, A connecting pipe (11) is fixedly connected to one side of the upper part of the water supply cylinder (1).

3. The filtration device for a negative pressure-free water supply system as described in claim 2, characterized in that, The filter box (21) is fixedly connected to the center of the bottom end of the connecting pipe two (12), and both connecting pipe two (12) are fixedly connected to the connecting pipe one (11).

4. The filtration device for a negative pressure-free water supply system as described in claim 1, characterized in that, The mounting box (3) has symmetrical sliding grooves (32) on both sides near the center. A connecting block (33) is slidably connected inside the sliding groove (32), and the connecting block (33) is fixedly connected to the insert (31).

5. The filtration device for a negative pressure-free water supply system as described in claim 4, characterized in that, A vertical plate (34) is fixedly connected to the top of the mounting box (3) and near the center of one side, and a mounting rod (38) is fixedly connected to the center of the inside of the vertical plate (34).

6. The filtration device for a negative pressure-free water supply system as described in claim 5, characterized in that, Springs (35) are symmetrically fixedly connected to both ends of the mounting rod (38), and the other end of the spring (35) is fixedly connected to the connecting block (33).

7. The filtration device for a negative pressure-free water supply system as described in claim 4, characterized in that, An L-shaped mounting plate (36) is fixedly connected to the side end of the mounting box (3) near the connecting block (33). A cam (37) is rotatably connected to the side end of the L-shaped mounting plate (36) near the mounting box (3), and the cam (37) cooperates with the connecting block (33).

8. The filtration device for a negative pressure-free water supply system as described in claim 7, characterized in that, The L-shaped mounting plate (36) is rotatably connected to a rotating handle on the side away from the mounting box (3), and one end of the rotating handle passes through the L-shaped mounting plate (36) and is fixedly connected to the cam (37).

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