A filter valve

Abstract

The present invention provides a filter valve, including: a valve body, which is a T-shaped three-way structure; a sewage discharge part, including a cup body, and a magnetic ring is arranged on the outer cover of the cup body; an exhaust part, which includes an automatic exhaust valve; a dual-mode filter part, which includes a filter screen mounting seat, a slide groove 1 is arranged in the middle of the filter screen mounting seat, a filter screen 1 is arranged at the bottom of the slide groove 1, a slide groove 2 is arranged on the inner wall of the valve body above the slide groove 1, a valve disc that passes through up and down is arranged in the slide groove 1, the valve disc is sealed and slidably connected with the slide grooves 1 and 2 at the same time, a filter screen 2 is arranged on the upper side wall of the valve disc, and a limiting protrusion is arranged on the middle side wall of the valve disc. The present invention adopts magnetic adsorption and filter screen filtering to filter, so that the filter screen 1 is not easy to be blocked, thereby reducing the cleaning frequency of the filter screen 1 and improving the filtering effect; the backwash cleaning function can be realized by turning the hand wheel or the automatic exhaust valve, which is very convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of HVAC valves, and in particular to a filter valve. Background Art

[0002] Filter valves are usually installed at the inlet of each device on the pipeline to filter particulate impurities in the medium. Most common filter valves on the market adopt a Y-type structure, which generally only has the function of opening and closing the water channel and filtering impurities. This structure requires the valve to be disassembled when cleaning the filter, which is very inconvenient; in addition, this structure has a single filtering method and can only filter water through the filter, which has a poor filtering effect and the filter is prone to clogging. Summary of the invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides a filter valve.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A filter valve, comprising:

[0006] The valve body is a T-shaped three-way structure. The two pipe sections at the top are the water inlet pipe and the water outlet pipe, and the pipe section at the bottom is the sewage pipe.

[0007] The sewage discharge part includes a cup body, which is sealed and fixedly connected to the bottom of the sewage discharge pipe, a sewage discharge valve is provided at the sewage discharge port at the bottom of the cup body, and a magnetic ring is provided on the outer cover of the cup body;

[0008] An exhaust part, the exhaust part includes an automatic exhaust valve, and the automatic exhaust valve is located at the top of the valve body;

[0009] The dual-mode filter part includes a filter mounting seat, the filter mounting seat is fixedly connected to the cup mouth of the cup body, the edge of the filter mounting seat is provided with a through hole for facilitating the communication between the water inlet pipe and the inner cavity of the cup body, a slide groove 1 is provided in the middle of the filter mounting seat, a filter mesh 1 is provided at the bottom of the slide groove 1, a slide groove 2 is provided on the inner wall of the valve body above the slide groove 1, a valve disc that passes through the upper and lower parts is provided in the slide groove 1, and the valve disc is sealed and slidably connected with the slide grooves 1 and 2 at the same time, a filter mesh 2 is provided on the upper side wall of the valve disc, and a limiting protrusion is provided on the middle side wall of the valve disc,

[0010] When the valve disc slides to the bottom, the limit protrusion blocks the through hole on the filter screen mounting seat and the water inlet pipe is connected to the inner cavity of the valve disc through the filter screen 2; when the valve disc slides to the top, the inner wall of the second slide groove blocks the filter screen 2;

[0011] A transmission mechanism is provided on the top of the valve disc to drive it to slide up and down. The transmission mechanism includes a screw rod. A screw sleeve is provided on the outer sleeve of the screw rod. The screw sleeve is meshed with the screw rod and fixedly connected to the valve disc. The screw rod is rotationally connected to the valve body.

[0012] Furthermore, the automatic exhaust valve is sealingly rotatably connected to the valve body via an exhaust valve mounting seat, and the exhaust valve mounting seat is clamped to the valve body via a clamping ring to prevent falling off.

[0013] Furthermore, the top of the screw is fixedly connected to the exhaust valve mounting seat.

[0014] Furthermore, a hand wheel is integrated on the top of the automatic exhaust valve. Turning the automatic exhaust valve can drive the valve disc to rise and fall, allowing the product to switch between the two modes of filtration and backwashing.

[0015] Furthermore, the filter screen 1 is in a barrel shape with an opening facing upward.

[0016] Furthermore, an O-ring is provided on the side wall of the valve disc, one above and one below the filter screen 2.

[0017] Furthermore, the screw rod penetrates the valve body and is rotatably sealed with the valve body, and a hand wheel is fixedly provided at one end of the screw rod located outside the valve body.

[0018] Furthermore, a water inlet ball valve is provided on the water inlet pipe.

[0019] Furthermore, the magnetic ring is an elastic C-shaped plastic ring, which is convenient for installation or removal on the cup body, and has multiple grooves for placing magnets on the magnetic ring.

[0020] The beneficial effects of the present invention are as follows: the present invention adopts magnetic adsorption and filter filtering to perform filtration, so that filter one is not easy to be blocked, thereby reducing the cleaning frequency of filter one and improving the filtration effect; the backwash cleaning function can be achieved by turning the hand wheel or the automatic exhaust valve, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention in the filtering mode;

[0022] Figure 2 It is a schematic diagram of the structure in the backwash mode of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the magnetic ring;

[0024] In the figure: 1-valve body; 11-water inlet ball valve; 2-drainage part; 21-cup body; 22-drainage valve; 23-magnetic ring; 24-magnet; 3-exhaust part; 31-automatic exhaust valve; 32-exhaust valve mounting seat; 4-dual-mode filter part; 41-filter screen mounting seat; 42-chute 1; 43-filter screen 1; 44-chute 2; 45-valve disc; 46-filter screen 2; 47-limiting protrusion; 48-screw; 49-screw sleeve;

[0025] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with embodiments:

[0027] A filter valve, comprising:

[0028] Valve body 1, valve body 1 is a T-shaped three-way structure, the two pipe sections located at the top are the water inlet pipe and the water outlet pipe, and the pipe section located at the bottom is the sewage pipe;

[0029] The sewage discharge part 2 includes a cup body 21, which is sealed and fixedly connected to the bottom of the sewage discharge pipe. A sewage discharge valve 22 is provided at the sewage discharge port at the bottom of the cup body 21, and a magnetic ring 23 is provided on the outer cover of the cup body 21;

[0030] The exhaust part 3 includes an automatic exhaust valve 31, and the automatic exhaust valve 31 is located at the top of the valve body 1;

[0031] The dual-mode filter unit 4 includes a filter screen mounting seat 41, which is fixedly connected to the cup mouth of the cup body 21. The edge of the filter screen mounting seat 41 is provided with a through hole for facilitating the communication between the water inlet pipe and the inner cavity of the cup body 21. A slide groove 42 is provided in the middle of the filter screen mounting seat 41, and a filter screen 43 is provided at the bottom of the slide groove 42. A slide groove 2 44 is provided on the inner wall of the valve body 1 above the slide groove 1 42. A valve flap 45 that passes through the slide groove 1 42 is provided in the slide groove 1 42. The valve flap 45 is sealed and slidably connected with the slide groove 1 42 and the slide groove 2 44 at the same time. A filter screen 2 46 is provided on the upper side wall of the valve flap 45, and a limiting protrusion 47 is provided on the middle side wall of the valve flap 45.

[0032] When the valve flap 45 slides to the bottom, the limit protrusion 47 blocks the through hole on the filter screen mounting seat 41, and the water inlet pipe is connected to the inner cavity of the valve flap 45 through the filter screen 46; when the valve flap 45 slides to the top, the inner wall of the chute 44 blocks the filter screen 46;

[0033] A transmission mechanism is provided at the top of the valve disc 45 to drive it to slide up and down. The transmission mechanism includes a screw rod 48. A screw sleeve 49 is provided on the outer sleeve of the screw rod 48. The screw sleeve 49 is meshed with the screw rod 48 and fixedly connected to the valve disc 45. The screw rod 48 is rotatably connected to the valve body 1.

[0034] Furthermore, the automatic exhaust valve 31 is sealingly rotatably connected to the valve body 1 via the exhaust valve mounting seat 32, and the exhaust valve mounting seat 32 is clamped to the valve body 1 via a clamping ring to prevent it from falling off.

[0035] Furthermore, the top of the screw rod 48 is fixedly connected to the exhaust valve mounting seat 32 .

[0036] Furthermore, a hand wheel is integrally provided on the top of the automatic exhaust valve 31 , and rotating the automatic exhaust valve 31 can drive the valve flap 45 to rise and fall, allowing the product to switch between the two modes of filtration and backwashing.

[0037] Furthermore, the filter screen 43 is in a barrel shape with its opening facing upward.

[0038] Furthermore, an O-ring is provided on the side wall of the valve flap 45 above and below the filter screen 2 46 .

[0039] Furthermore, the screw rod 48 is arranged to penetrate the valve body 1 and is rotatably sealed and connected to the valve body 1 , and a hand wheel is fixedly provided at one end of the screw rod 48 located outside the valve body 1 .

[0040] Furthermore, a water inlet ball valve 11 is provided on the water inlet pipe.

[0041] Furthermore, the magnetic ring 23 is an elastic C-shaped plastic ring, which is convenient for installation or removal on the cup body 21 , and the magnetic ring 23 has multiple grooves for placing the magnets 24 .

[0042] The present invention has the following two working modes:

[0043] In the filtering mode, the automatic exhaust valve 31 is rotated counterclockwise. In this mode, the valve disc 45 is located at the top and the drain valve 22 is closed. The water supply enters the inner cavity of the cup body 21 through the water inlet pipe and the through hole on the filter screen mounting seat 41 in turn. After entering the cup body 21, the impurities in the water that can be magnetically adsorbed are adsorbed on the inner wall of the cup body 21 by the magnetic ring 23, and the impurities that cannot be adsorbed are intercepted by the filter screen 1 43 and remain in the cup body 21. The water filtered by the filter screen 1 43 flows into the water outlet pipe through the chute 1 42, the inner cavity of the valve disc 45, and the chute 2 44 in turn. The bubbles in the water float to the top and are discharged through the automatic exhaust valve 31. The present invention adopts the method of magnetic adsorption and filter screen filtration to filter, so that the filter screen 1 43 is not easy to be blocked, thereby reducing the cleaning frequency of the filter screen 1 43 and improving the filtering effect.

[0044] In the backwash mode, turn the automatic exhaust valve 31 clockwise. In this mode, the valve disc 45 is located at the bottom and the sewage valve 22 is open. Remove the magnetic ring 23 from the cup body 21, and the water supply enters the inner cavity of the valve disc 45 after being filtered by the filter screen 2 46 from the water inlet pipe, and then flows out from the sewage outlet through the chute 1 42, the filter screen 1 43, and the inner cavity of the cup body 21 in sequence. When passing through the filter screen 1 43 and the inner cavity of the cup body 21, the water flow can wash away the impurities attached to the surface of the filter screen 1 43 and the inner cavity of the cup body 21, thereby achieving the backwash effect. This cleaning method does not require disassembly, and the cleaning function can be achieved by simply turning the hand wheel or the automatic exhaust valve 31, which is very convenient to use.

[0045] The present invention has been exemplarily described above in conjunction with specific embodiments. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A filter valve, characterized in that: include: The valve body (1) is a T-shaped three-way structure, the two pipe sections located at the top are respectively a water inlet pipe and a water outlet pipe, and the pipe section located at the bottom is a sewage discharge pipe; The sewage discharge part (2) comprises a cup body (21), the cup body (21) is sealed and fixedly connected to the bottom of the sewage discharge pipe, a sewage discharge valve (22) is provided at the sewage discharge port at the bottom of the cup body (21), and a magnetic ring (23) is provided on the outer cover of the cup body (21); An exhaust portion (3), the exhaust portion (3) comprising an automatic exhaust valve (31), the automatic exhaust valve (31) being located at the top of the valve body (1); the automatic exhaust valve (31) being sealingly rotatably connected to the valve body (1) via an exhaust valve mounting seat (32), the exhaust valve mounting seat (32) being clamped to the valve body (1) via a clamping ring to prevent it from falling off; A dual-mode filter unit (4), the dual-mode filter unit (4) comprising a filter screen mounting seat (41), the filter screen mounting seat (41) being fixedly connected to the cup mouth of the cup body (21), the filter screen mounting seat (41) being provided with a through hole at the edge thereof for facilitating the communication between the water inlet pipe and the inner cavity of the cup body (21), a slide groove (42) being provided in the middle of the filter screen mounting seat (41), a filter screen (43) being provided at the bottom of the slide groove (42), the filter screen (43) being in a barrel shape with an opening facing upward, a slide groove (44) being provided on the inner wall of the valve body (1) above the slide groove (42), a valve flap (45) being provided in the slide groove (42) and extending upward and downward, the valve flap (45) being sealingly and slidably connected to the slide groove (42) and the slide groove (44), a filter screen (46) being provided on the upper side wall of the valve flap (45), and a limiting protrusion (47) being provided on the middle side wall of the valve flap (45), When the valve disc (45) slides to the bottom, the limit protrusion (47) blocks the through hole on the filter screen mounting seat (41), and the water inlet pipe is connected to the inner cavity of the valve disc (45) through the filter screen (46); when the valve disc (45) slides to the top, the inner wall of the second slide groove (44) blocks the second filter screen (46); A transmission mechanism for driving the valve disc (45) to slide up and down is provided at the top of the valve disc (45), the transmission mechanism comprising a screw rod (48), a screw sleeve (49) being provided on the outer sleeve of the screw rod (48), the screw sleeve (49) being meshed with the screw rod (48) and fixedly connected to the valve disc (45), and the screw rod (48) being rotationally connected to the valve body (1).

2. The filter valve according to claim 1, characterized in that: The top of the screw rod (48) is fixedly connected to the exhaust valve mounting seat (32).

3. The filter valve according to claim 2, characterized in that: A hand wheel is integrally provided on the top of the automatic exhaust valve (31).

4. The filter valve according to claim 1, characterized in that: An O-ring is provided on the side wall of the valve disc (45) above and below the second filter screen (46).

5. The filter valve according to claim 1 or 4, characterized in that: The screw rod (48) is arranged to penetrate the valve body (1) and is rotatably sealed with the valve body (1); a hand wheel is fixedly provided at one end of the screw rod (48) located outside the valve body (1).

6. The filter valve according to claim 1, characterized in that: A water inlet ball valve (11) is provided on the water inlet pipe.

7. The filter valve according to claim 1, characterized in that: The magnetic ring (23) is a C-shaped plastic ring with elasticity, and has a plurality of grooves on the magnetic ring (23) for accommodating the magnets (24).

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