One-way valve structure

Abstract

The utility model discloses a one-way valve structure, relates to the technical field of one-way valves, and aims to solve the technical problem that the front one-way valve can be blocked by impurities after being used for a long time, so that the flow velocity is reduced. The one-way valve structure comprises a one-way valve main body, two valve pipes are symmetrically mounted at the bottom end of the one-way valve main body, and a filtering device is mounted at the liquid inlet end of each valve pipe; the filter device comprises a base, a through groove communicated with the valve pipe is formed in the base, a baffle is installed in the base in an inserted mode, and a filter screen is installed in the baffle. According to the one-way valve, the valve pipe is blocked by the baffle installed in the base in an inserted mode, liquid passing through the valve pipe is filtered through the filter screen in the baffle, the one-way valve can be prevented from being blocked, the assembly time can be shortened, and high sealing performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, and more particularly to a one-way valve structure. Background Art

[0002] A check valve, commonly known as a one-way valve, allows fluid to flow only through the inlet but not back through the outlet. Also known as a non-return valve or check valve, a check valve is used in hydraulic systems to prevent reverse flow of oil or in pneumatic systems to prevent reverse flow of compressed air. Check valves are available in straight-through and right-angle styles. Straight-through check valves are installed in the pipeline using a threaded connection. Right-angle check valves are available with threaded, plate-type, and flanged connections.

[0003] The existing one-way valve still has shortcomings when in use. When in use, if there is garbage or other objects that are easy to cause blockage in the water, it is easy to cause blockage of the one-way valve, affecting normal use. At the same time, a switch is set inside the one-way valve, which has a complex structure. Water with garbage will accumulate when passing through the one-way valve, which will reduce the water flow rate in the one-way valve over time.

[0004] In view of this, we propose a one-way valve structure. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a one-way valve structure to solve the technical problem that the current one-way valve will be clogged by impurities after long-term use, resulting in a reduced flow rate.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a one-way valve structure, comprising a one-way valve body, two valve tubes symmetrically mounted at the bottom end of the one-way valve body, and a filter device mounted at one end of the two valve tubes for liquid inlet;

[0007] The filtering device includes a base, a through groove connected to the valve pipe is opened in the base, a baffle is installed in the base, a filter screen is installed in the baffle, the filter screen is placed in the center of the through groove, and the diameter of the filter screen is larger than the diameter of the through groove. The utility model can filter the liquid entering the one-way valve to avoid the phenomenon of reduced flow rate due to blockage of the one-way valve.

[0008] Preferably, the base is provided with an interlocking groove for the baffle to be inserted, and guide plates are constructed on both sides of the baffle. The base is provided with a guide groove for the guide plate to be inserted, and the bottom ends of the two guide plates are constructed with arc blocks for auxiliary positioning.

[0009] Preferably, two sealing plates are symmetrically constructed on the top of the baffle, a sealing groove for plugging the two sealing plates is opened on the top of the base, and the interface of the sealing plate is L-shaped.

[0010] Preferably, two sealing rings are symmetrically installed on the side of the baffle, the inner diameter of the two sealing rings is larger than the diameter of the filter screen, and the outer edge surface of the sealing ring is provided with an arc surface for easy insertion.

[0011] Preferably, two rotating plates are symmetrically rotatably installed on the top of the base, one end of the two rotating plates is rotatably connected to the top of the base, the bottom ends of the two rotating plates abut the top of the baffle, and the other ends of the two rotating plates extend to the other side of the top of the base.

[0012] Preferably, the valve tube, the through groove and the filter screen are all located on the same straight line, and the bottom end of the baffle is lower than the bottom end of the outer diameter of the through groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model designs a base, a baffle, a filter screen, a guide plate, a sealing plate and a sealing ring. The base is inserted into the valve pipe, and the baffle installed in the base blocks the valve pipe. The filter screen in the baffle filters the liquid passing through the valve pipe. The guide plate, the sealing plate and the sealing ring improve the sealing performance of the device, thereby solving the problem that the current one-way valve will be clogged by impurities after long-term use, resulting in a decrease in flow rate.

[0015] 2. The present invention also designs a guide plate, an arc block, a sealing ring and an arc surface structure. The arc block at the bottom of the guide plate can assist in positioning the guide plate so that it is embedded in the guide groove. The arc surface provided on the outer edge of the sealing ring facilitates the insertion of the baffle into the base, further shortening the assembly time and improving the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the disassembly of the filter device;

[0018] Figure 3 For this utility model Figure 2 A schematic cross-sectional view of the filtration equipment;

[0019] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the structure at center A.

[0020] Description of the numbers in the figure:

[0021] 1. Check valve body; 101. Valve tube; 2. Filter device; 201. Base; 202. Through groove; 203. Fitting groove; 204. Rotating plate; 3. Guide groove; 301. Sealing groove; 4. Baffle; 401. Filter screen; 5. Guide plate; 501. Arc block; 502. Sealing plate; 6. Sealing ring; 601. Arc surface. DETAILED DESCRIPTION

[0022] like Figures 1 to 4 As shown, the utility model relates to a one-way valve structure, comprising a one-way valve body 1, two valve tubes 101 are symmetrically installed at the bottom end of the one-way valve body 1, and a filter device 2 is installed at the liquid inlet end of the two valve tubes 101;

[0023] In an embodiment of the present utility model, the filter device 2 includes a base 201, a through groove 202 for connecting the valve tube 101 is provided in the base 201, a baffle 4 is installed in the base 201, a filter screen 401 is installed in the baffle 4, the filter screen 401 is placed in the center of the through groove 202, and the diameter of the filter screen 401 is larger than the diameter of the through groove 202, a fitting groove 203 for the baffle 4 to be inserted is provided in the base 201, guide plates 5 are constructed on both sides of the baffle 4, a guide groove 3 for the guide plate 5 to be inserted is provided in the base 201, and the two guide plates 5 are arranged in a plurality of grooves 203. The bottom ends are constructed with arc blocks 501 for auxiliary positioning, and the top of the baffle 4 is symmetrically constructed with two sealing plates 502. The top of the base 201 is provided with a sealing groove 301 for the two sealing plates 502 to be plugged in. The interface of the sealing plate 502 is L-shaped. The base 201 is inserted into the valve pipe 101, and the baffle 4 installed in the base 201 blocks the valve pipe 101. The liquid passing through the valve pipe 101 is filtered by the filter screen 401 in the baffle 4, and the sealing performance of the device is improved by the guide plate 5, the sealing plate 502 and the sealing ring 6.

[0024] In the embodiment of the present invention, two sealing rings 6 are symmetrically installed on the side of the baffle 4. In the specific implementation, the sealing ring 6 can be made of rubber, but is not limited thereto. The inner diameter of the two sealing rings 6 is larger than the diameter of the filter 401. The outer edge of the sealing ring 6 is provided with an arc surface 601 for easy insertion. The top of the base 201 is symmetrically rotatably installed with two rotating plates 204. One end of the two rotating plates 204 is rotatably connected to the top of the base 201. The bottom ends of the two rotating plates 204 abut the top of the baffle 4, and the two rotating plates 204 are symmetrically rotatably connected to the top of the base 201. The other end of the rotating plate 204 extends to the other side of the top of the base 201. The valve tube 101, the axes of the through groove 202 and the filter screen 401 are all on the same straight line, and the bottom end of the baffle 4 is lower than the bottom end of the outer diameter of the through groove 202. The arc-shaped arc block 501 at the bottom end of the guide plate 5 can be used to assist in positioning the guide plate 5 and embed it into the guide groove 3. The arc surface 601 set on the outer edge of the sealing ring 6 facilitates the insertion of the baffle 4 into the base 201, further shortening the assembly time and improving the sealing of the device.

[0025] Working principle: This embodiment provides a one-way valve structure. When in use, liquid enters through the valve tube 101 and is then filtered through the filter screen 401 in the baffle 4 to avoid clogging the one-way valve body 1. When cleaning the filter screen 401, rotate and open the rotating plate 204 to release the fixation of the baffle 4, then pull out the baffle 4 and clean the filter screen 401. After cleaning, reinsert the baffle 4 into the fitting groove 203. When inserted into the fitting groove 203, auxiliary positioning is performed through the arc block 501 at the bottom end of the guide plate 5 to facilitate the insertion of the baffle 4. The sealing plate 502 is embedded in the sealing groove 301, which can further improve the sealing performance of the device. Then rotate the rotating plate 204 to place it on the top of the baffle 4 to complete the fixation.

[0026] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A one-way valve structure, characterized in that: It comprises a one-way valve body (1), two valve tubes (101) are symmetrically mounted on the bottom end of the one-way valve body (1), and a filter device (2) is mounted on the liquid inlet end of the two valve tubes (101); The filtering device (2) comprises a base (201), a through groove (202) communicating with the valve tube (101) is provided in the base (201), a baffle (4) is inserted and installed in the base (201), a filter (401) is installed in the baffle (4), the filter (401) is placed at the center of the through groove (202), and the diameter of the filter (401) is larger than the diameter of the through groove (202).

2. A one-way valve structure according to claim 1, characterized in that: The base (201) is provided with an engaging groove (203) for inserting the baffle (4), and guide plates (5) are constructed on both sides of the baffle (4). The base (201) is provided with a guide groove (3) for inserting the guide plate (5), and the bottom ends of the two guide plates (5) are constructed with arc blocks (501) for auxiliary positioning.

3. A one-way valve structure according to claim 2, characterized in that: Two sealing plates (502) are symmetrically constructed at the top of the baffle (4), and a sealing groove (301) for plugging the two sealing plates (502) is provided at the top of the base (201), and the interface of the sealing plate (502) is L-shaped.

4. A one-way valve structure according to claim 1, characterized in that: Two sealing rings (6) are symmetrically mounted on the side of the baffle (4); the inner diameters of the two sealing rings (6) are larger than the diameter of the filter screen (401); and the outer edge of the sealing ring (6) is provided with an arc surface (601) for easy insertion.

5. A one-way valve structure according to claim 1, characterized in that: Two rotating plates (204) are symmetrically and rotatably mounted on the top of the base (201), one end of the two rotating plates (204) is rotatably connected to the top of the base (201), the bottom ends of the two rotating plates (204) abut against the top of the baffle (4), and the other ends of the two rotating plates (204) extend to the other side of the top of the base (201).

6. A one-way valve structure according to claim 1, characterized in that: The axes of the valve tube (101), the through groove (202) and the filter screen (401) are all on the same straight line, and the bottom end of the baffle (4) is lower than the bottom end of the outer diameter of the through groove (202).

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