Dual-backwash filter valve

Abstract

The utility model discloses a dual backwashing filter valve, which relates to the technical field of filter valves and comprises a valve body, a water inlet pipe, a water outlet pipe, a first connecting pipe and a second connecting pipe. The water inlet pipe and the water outlet pipe are connected through a first connecting pipe and a second connecting pipe, and the two ends of the first connecting pipe and the two ends of the second connecting pipe communicate with the water inlet pipe and the water outlet pipe correspondingly. In the using process, the working mode of the first filter plate and the working mode of the second filter plate can be switched, it is guaranteed that any one filter plate can conduct back washing on the other filter plate which does not work when in the working mode, and therefore it can be guaranteed that the filter valve can always play a filtering role, normal operation of a water conveying or infusion device is guaranteed, and the service life of the filter valve is prolonged. Meanwhile, the other filter plate can be backwashed, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filter valves, in particular to a double backwash filter valve. Background Art

[0002] The filter valve is a common pipeline valve used to filter insoluble impurities in the filter medium, such as calcium and magnesium scale, iron filings and gravel, etc. It can effectively prevent impurities from accumulating and clogging in the pipeline cavity or equipment.

[0003] However, during the filtration process, the filter valve is prone to clogging after being used for a long time, which requires backwashing the filter valve. During the backwashing process, the filter valve cannot play a normal filtering function, affecting the normal operation of the water or infusion device. To this end, we propose a double backwash filter valve. Utility Model Content

[0004] In view of the above problems existing in the existing double backwash filter valve, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a double backwash filter valve, which solves the problem that during the filtering process, the filter valve is prone to clogging after being used for a long time, which requires backwashing the filter valve. During the backwashing process, the filter valve cannot perform normal filtering function, affecting the normal operation of the water or infusion device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A double backwash filter valve comprises a valve body, a water inlet pipe, a water outlet pipe, a first connecting pipe and a second connecting pipe, the valve body is composed of the water inlet pipe, the water outlet pipe, the first connecting pipe and the second connecting pipe, the water inlet pipe and the water outlet pipe are connected by the first connecting pipe and the second connecting pipe, the two ends of the first connecting pipe and the second connecting pipe are respectively communicated with the water inlet pipe and the water outlet pipe, the first connecting pipe and the second connecting pipe are respectively provided with a first filter plate and a second filter plate, the first connecting pipe and the second connecting pipe are respectively provided with a first sewage outlet and a second sewage outlet, a two-way valve is provided inside the water inlet pipe, the two-way valve is provided with a water inlet and a water outlet, a connecting rod is fixedly connected to the outer wall of the two-way valve, the other end of the connecting rod passes through the outside of the water inlet pipe and is fixedly connected to a rotating disk.

[0008] Preferably, the water inlet pipe and the water outlet pipe are both provided with connecting flanges.

[0009] Preferably, a baffle is provided inside the water inlet pipe, and the size of the baffle matches that of the two-way valve.

[0010] Preferably, a rotating rod is provided on the outer wall of the rotating disk, the rotating rod and the rotating disk are in an integrated structure, and a rubber sleeve is embedded in the rotating rod.

[0011] Furthermore, a limiting rod is provided on the outer wall of the water inlet pipe.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] During use, the utility model can switch the working modes of the first filter plate and the second filter plate, and ensure that any filter plate can backwash the other non-working filter plate in the working mode, so that it can ensure that the filter valve can always play the filtering function and ensure the normal operation of the water delivery or infusion device, and at the same time, it can also realize the backwashing of the other filter plate, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of a two-way valve of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] Description of reference numerals:

[0019] 1. Water inlet pipe; 2. Water outlet pipe; 3. First connecting pipe; 4. Second connecting pipe; 5. First filter plate; 6. Second filter plate; 7. First sewage outlet; 8. Second sewage outlet; 9. Connecting flange; 10. Two-way valve; 11. Baffle; 12. Connecting rod; 13. Rotating disk; 14. Rotating rod; 15. Water inlet; 16. Water outlet; 17. Limit rod. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] The utility model embodiment discloses a double backwash filter valve.

[0022] The utility model provides Figure 1-3A double backwash filter valve shown in the figure comprises a valve body, an inlet pipe 1, an outlet pipe 2, a first connecting pipe 3 and a second connecting pipe 4. The valve body is composed of the inlet pipe 1, the outlet pipe 2, the first connecting pipe 3 and the second connecting pipe 4. The inlet pipe 1 and the outlet pipe 2 are connected by the first connecting pipe 3 and the second connecting pipe 4. The two ends of the first connecting pipe 3 and the second connecting pipe 4 are respectively communicated with the inlet pipe 1 and the outlet pipe 2. The first filter plate 5 and the second filter plate 6 are respectively arranged in the first connecting pipe 3 and the second connecting pipe 4. The first connecting pipe 3 and the second connecting pipe 4 are respectively provided with a first sewage outlet 7 and a second sewage outlet 8. A two-way valve 10 is arranged inside the inlet pipe 1. The two-way valve 10 is provided with a water inlet 15 and a water outlet 16. A connecting rod 12 is fixedly connected to the outer wall of the two-way valve 10. The other end of the connecting rod 12 passes through the outside of the inlet pipe 1 and is fixedly connected to a rotating disk 13.

[0023] The utility model discloses a double backwash filter valve, wherein both the water inlet pipe 1 and the water outlet pipe 2 are provided with connecting flanges 9, which can be conveniently connected with external pipelines, thereby improving the connection convenience.

[0024] The utility model discloses a double backwash filter valve. A baffle plate 11 is arranged inside a water inlet pipe 1. The size of the baffle plate 11 is consistent with that of a two-way valve 10, so as to improve the sealing performance.

[0025] The utility model discloses a double backwash filter valve, a rotating rod 14 is provided on the outer wall of a rotating disk 13, the rotating rod 14 and the rotating disk 13 are in an integrated structure, a rubber sleeve is embedded on the rotating rod 14, the rotating disk 13 can be conveniently driven to rotate by the rotating rod 14, and then the two-way valve 10 can be conveniently driven to rotate, so as to adjust the water outlet direction of the two-way valve 10.

[0026] The utility model provides a double backwash filter valve. A limit rod 17 is provided on the outer wall of the water inlet pipe 1 to limit the rotation angle of the two-way valve 10 to avoid the rotation angle being too large or too small to affect water flow delivery.

[0027] When in use, the water inlet pipe 1 and the water outlet pipe 2 are connected to the external pipeline through the connecting flange 9. At this time, the water flow will enter the interior of the second connecting pipe 4 through the water outlet 16 on the two-way valve 10. At this time, the second connecting pipe 4 is connected to the water inlet pipe 1, and the first connecting pipe 3 and the water inlet pipe 1 are in a closed state. The water flow will enter the outlet pipe 2 through the second connecting pipe 4, and the second filter plate 6 in the second connecting pipe 4 will filter impurities in the water, and a part of the water flow will enter the interior of the first connecting pipe 3 through the outlet pipe 2, and backwash the first filter plate 5. The flushed sewage will be discharged through the first sewage outlet 7. When it is necessary to backwash the second filter plate 6 in the second connecting pipe 4, it is only necessary to rotate the rotating rod 14 to drive the two-way valve 10 to rotate so that the water outlet 16 of the two-way valve 10 corresponds to the first connecting pipe 3.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A double backwash filter valve, comprising a valve body, a water inlet pipe (1), a water outlet pipe (2), a first connecting pipe (3) and a second connecting pipe (4), characterized in that: The valve body is composed of a water inlet pipe (1), a water outlet pipe (2), a first connecting pipe (3) and a second connecting pipe (4); the water inlet pipe (1) and the water outlet pipe (2) are connected via the first connecting pipe (3) and the second connecting pipe (4); the two ends of the first connecting pipe (3) and the second connecting pipe (4) are respectively connected to the water inlet pipe (1) and the water outlet pipe (2); the first connecting pipe (3) and the second connecting pipe (4) are respectively provided with a first filter plate (5) and a second filter plate (6); the first connecting pipe (3) and the second connecting pipe (4) are respectively provided with a first sewage outlet (7) and a second sewage outlet (8); a two-way valve (10) is provided inside the water inlet pipe (1); the two-way valve (10) is provided with a water inlet (15) and a water outlet (16); a connecting rod (12) is fixedly connected to the outer wall of the two-way valve (10); the other end of the connecting rod (12) passes through the outside of the water inlet pipe (1) and is fixedly connected to a rotating disk (13).

2. The double backwash filter valve according to claim 1, characterized in that: The water inlet pipe (1) and the water outlet pipe (2) are both provided with connecting flanges (9).

3. The double backwash filter valve according to claim 1, characterized in that: A baffle (11) is provided inside the water inlet pipe (1), and the baffle (11) is consistent in size with the two-way valve (10).

4. The double backwash filter valve according to claim 1, characterized in that: A rotating rod (14) is provided on the outer wall of the rotating disk (13); the rotating rod (14) and the rotating disk (13) are in an integrated structure; a rubber sleeve is embedded in the rotating rod (14).

5. The double backwash filter valve according to claim 1, characterized in that: A limiting rod (17) is provided on the outer wall of the water inlet pipe (1).

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