Self-control backflow three-way valve body structure with good anti-blocking performance

Abstract

The utility model relates to the technical field of self-control backflow valves, and discloses a self-control backflow three-way valve body structure with good anti-blocking performance, which comprises a valve body, a first water inlet pipe is fixedly arranged on the right side of the valve body, and a fixed bin is fixedly arranged on the right side of the first water inlet pipe. The bottom of the fixed bin is in threaded connection with a threaded rod with one end extending to the inner side of the fixed bin. The self-control backflow three-way valve body structure with the good anti-blocking performance has the advantages of preventing blocking and the like, and solves the problems that most of existing valves do not have the anti-blocking function, scrap iron and other impurities can fall off after some pipelines are used for a long time, liquid media contain certain impurities, when the liquid media flow into the valve body, the valve element is prone to being blocked, and the service life of the valves is prolonged. And meanwhile, the impurities easily cause abrasion of the valve in the flowing process, so that the service life of the valve is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic reflux valves, in particular to an automatic reflux three-way valve body structure with good anti-blocking performance. Background Art

[0002] After the automatic reflux valve is applied to the centrifugal pump, it provides automatic reflux protection for the centrifugal pump to prevent cavitation, vibration and noise caused by low flow in the pump, ensure the safe and stable operation of the pump, and extend the service life of the pump. The automatic reflux valve is a three-way valve with the valve inlet connected to the pump outlet. After passing through the valve, the medium can flow out in two ways. The main outlet is connected to the subsequent process pipeline, and the bypass outlet is connected to the medium storage tank.

[0003] Most of the current valves do not have the anti-clogging function. After long-term use, some pipes will shed impurities such as iron filings, and the liquid medium itself contains certain impurities. When these liquid media flow into the valve body, it is easy to cause the valve core to be blocked, affecting the normal use of the valve body. At the same time, these impurities are easy to cause valve wear during flow, thereby affecting the service life of the valve. Therefore, an automatic control reflux three-way valve body structure with good anti-clogging performance is proposed to solve the above-mentioned problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides an automatic control reflux three-way valve body structure with good anti-blocking performance, which has the advantages of anti-blocking, etc., and solves the problem that most current valves do not have the anti-blocking function. After long-term use, some pipes will fall off impurities such as iron filings, and the liquid medium itself contains certain impurities. When these liquid media flow into the valve body, the valve core is easily blocked, affecting the normal use of the valve body. At the same time, these impurities are likely to cause wear of the valve during flow, thereby affecting the service life of the valve.

[0006] (2) Technical solution

[0007] The utility model solves the above-mentioned technical problems with the following technical solutions: a self-controlled reflux three-way valve body structure with good anti-blocking performance, comprising a valve body, a first water inlet pipe is fixedly installed on the right side of the valve body, a fixed bin is fixedly installed on the right side of the first water inlet pipe, the bottom of the fixed bin is threadedly connected to a threaded rod with one end extending to the inner side of the fixed bin, the front and rear side walls of the inner cavity of the fixed bin and the rear side wall of the inner cavity are both provided with limiting grooves symmetrically distributed front and back, the opposite sides of the two limiting grooves are slidably connected to the same push plate, the push plate is rotatably connected to the threaded rod, and the top of the fixed bin is connected to the water inlet pipe. The top of the filter housing is fixedly installed with a rotating shaft, the outside of the rotating shaft is fixedly installed with a cover plate, the top of the cover plate is threadedly connected to a first screw, the top of the fixed bin is provided with a connecting groove adapted to the first screw, the inner side of the fixed bin is slidably connected to a filter frame, the bottom of the filter frame is provided with a groove, the left side of the fixed bin is threadedly connected to two second screws symmetrically distributed in the upper and lower directions, the right sides of the two second screws are fixedly installed with a pressing plate, the right side of the fixed bin is fixedly installed with a second water inlet pipe, and the inner side of the filter frame is threadedly connected to a material hopper.

[0008] The beneficial effects of the utility model are as follows: water flowing out from the second water inlet pipe reaches the filter frame for filtration, and impurities are filtered into between the retaining hopper and the filter screen, preventing the filtered impurities from flowing into the fixed bin during cleaning; when the filter frame needs to be cleaned, the threaded rod is rotated, the filter frame is pushed out of the fixed bin by the push plate and then taken out, the retaining hopper is rotated to separate the retaining hopper and the filter frame, impurities on the filter screen are cleaned, and the filter can be reinstalled and used again, thereby preventing impurities from clogging the valve core, reducing the abrasion of the valve body by impurities, and improving the service life of the automatic reflux valve.

[0009] The self-controlled reflux three-way valve body structure with good anti-blocking performance has the advantage of anti-blocking.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the right side of the first water inlet pipe is connected to the inner side of the fixed bin, and the left side of the second water inlet pipe is connected to the inner side of the fixed bin.

[0012] The beneficial effect of adopting the above-mentioned further scheme is that the left side of the second water inlet pipe is connected with the inner side of the fixed bin, so that water can flow from the second water inlet pipe into the fixed bin for filtration, and the right side of the first water inlet pipe is connected with the inner side of the fixed bin, so that the filtered water can flow into the valve body through the first water inlet pipe.

[0013] Furthermore, a sealing ring is provided inside the fixed bin and located outside the threaded rod, and a sealing gasket is fixedly installed on the right side of the filter frame.

[0014] The beneficial effect of adopting the above further solution is that the gap between the threaded rod and the fixed bin can be filled by the sealing ring, and a sealing gasket is fixedly installed on the right side of the filter frame to fill the gap between the filter frame and the inner wall of the fixed bin, so that all the water flowing out of the second water inlet pipe is filtered.

[0015] Furthermore, the push plate is located on the inner side of the limiting groove, and a sealing ring is fixedly installed on the top of the fixed bin.

[0016] The beneficial effect of adopting the above further solution is that the push plate is located on the inner side of the limit groove, so that the filter frame can be placed just into the interior of the fixed bin. A sealing ring is fixedly installed on the top of the fixed bin to fill the gap between the fixed bin and the cover plate to prevent water leakage.

[0017] Furthermore, a turntable is fixedly mounted on the bottom of the threaded rod, and an anti-slip groove is provided on the outer side of the turntable.

[0018] The beneficial effect of adopting the above further solution is that the threaded rod can be easily rotated by the turntable, and the friction between the hand and the turntable can be increased by the anti-slip groove.

[0019] Furthermore, the material blocking hopper is arranged in a funnel shape, and a water inlet hole with the same inner diameter as the second water inlet pipe is opened on the left side of the material blocking hopper.

[0020] The beneficial effect of adopting the above further scheme is that the material hopper is arranged in a funnel shape, which facilitates the entry of water and prevents the filtered impurities from falling out of the filter frame. A water inlet hole with the same inner diameter as the second water inlet pipe is opened on the left side of the material hopper, which facilitates the water flow of the second water inlet pipe to flow through the material hopper.

[0021] Furthermore, a thread is provided on the outer side of the material stopping hopper, and a torsion bar is fixedly installed on the inner side of the material stopping hopper.

[0022] The beneficial effect of adopting the above further solution is that the material retaining hopper can be easily installed on the inner side of the filter frame through the thread, and the material retaining hopper can be easily removed from the filter frame through the torsion bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a cross-sectional view of the connection structure between the filter frame and the baffle hopper of the utility model;

[0025] Figure 3 This is a front view of the connection structure between the valve body and the first water inlet pipe of the utility model;

[0026] Figure 4 This is a top view of the connection structure between the rotating shaft and the cover plate of the utility model;

[0027] Figure 5 For this utility model Figure 1 A magnified view of the structure at center A;

[0028] Figure 6 For this utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0029] In the figure: 1. Valve body; 2. First water inlet pipe; 3. Fixed chamber; 4. Threaded rod; 5. Limiting groove; 6. Push plate; 7. Rotating shaft; 8. Cover plate; 9. First screw; 10. Connecting groove; 11. Filter frame; 12. Groove; 13. Second screw; 14. Pressing plate; 15. Second water inlet pipe; 16. Material hopper; 17. Sealing ring; 18. Sealing gasket. DETAILED DESCRIPTION

[0030] 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.

[0031] In the embodiment, Figure 1-6 The utility model provides a self-controlled reflux three-way valve body structure with good anti-blocking performance. The utility model includes a valve body 1, a first water inlet pipe 2 is fixedly installed on the right side of the valve body 1, a fixed bin 3 is fixedly installed on the right side of the first water inlet pipe 2, the bottom of the fixed bin 3 is threadedly connected to a threaded rod 4 with one end extending to the inside of the fixed bin 3, the front and rear side walls of the inner cavity of the fixed bin 3 and the rear side wall of the inner cavity are provided with limiting grooves 5 which are symmetrically distributed front and back, the opposite side of the two limiting grooves 5 is slidably connected with the same push plate 6, the push plate 6 is rotatably connected to the threaded rod 4, and the top of the fixed bin 3 is fixedly installed with a rotating shaft 7. A cover plate 8 is fixedly installed on the outside of the shaft 7, and a first screw 9 is threadedly connected to the top of the cover plate 8. A connecting groove 10 adapted to the first screw 9 is provided on the top of the fixed bin 3. A filter frame 11 is slidably connected to the inside of the fixed bin 3. A groove 12 is provided at the bottom of the filter frame 11. Two second screws 13 are threadedly connected to the left side of the fixed bin 3 and are symmetrically distributed up and down. A pressing plate 14 is fixedly installed on the right side of the two second screws 13. A second water inlet pipe 15 is fixedly installed on the right side of the fixed bin 3, and a material hopper 16 is threadedly connected to the inner side of the filter frame 11;

[0032] The right side of the first water inlet pipe 2 is connected to the inner side of the fixed bin 3, and the left side of the second water inlet pipe 15 is connected to the inner side of the fixed bin 3;

[0033] The left side of the second water inlet pipe 15 is connected to the inside of the fixed chamber 3, allowing water to flow from the second water inlet pipe 15 into the fixed chamber 3 for filtration. The right side of the first water inlet pipe 2 is connected to the inside of the fixed chamber 3, allowing filtered water to flow into the valve body 1 through the first water inlet pipe 2.

[0034] A sealing ring 17 is provided inside the fixed chamber 3 and outside the threaded rod 4, and a sealing gasket 18 is fixedly installed on the right side of the filter frame 11;

[0035] The gap between the threaded rod 4 and the fixed chamber 3 can be filled by the sealing ring 17 to prevent water leakage. The right side of the filter frame 11 is fixed with a sealing gasket 18, which can fill the gap between the filter frame 11 and the inner wall of the fixed chamber 3, so that all the water flowing out of the second water inlet pipe 15 is filtered;

[0036] The push plate 6 is located inside the limiting groove 5, and a sealing ring is fixedly installed on the top of the fixed bin 3;

[0037] The push plate 6 is located inside the limiting groove 5, so that the filter frame 11 can be placed just inside the fixed bin 3. A sealing ring is fixedly installed on the top of the fixed bin 3 to fill the gap between the fixed bin 3 and the cover plate 8 to prevent water leakage.

[0038] A turntable is fixedly mounted on the bottom of the threaded rod 4, and an anti-slip groove is provided on the outside of the turntable;

[0039] The turntable facilitates the rotation of the threaded rod 4, and the anti-slip groove increases the friction between the hand and the turntable, making it easier to rotate the turntable;

[0040] The retaining hopper 16 is funnel-shaped, and a water inlet hole having the same inner diameter as the second water inlet pipe 15 is provided on the left side of the retaining hopper 16;

[0041] The retaining hopper 16 is funnel-shaped to facilitate water flow in and prevent filtered impurities from falling out of the filter frame 11. A water inlet hole with the same inner diameter as the second water inlet pipe 15 is opened on the left side of the retaining hopper 16 to facilitate the water flow from the second water inlet pipe 15 to flow through the retaining hopper 16, thereby reducing the resistance of the water flow.

[0042] The outer side of the blocking hopper 16 is provided with a thread, and the inner side of the blocking hopper 16 is fixedly installed with a torsion bar;

[0043] The material retaining hopper 16 can be conveniently installed on the inner side of the filter frame 11 through the thread, and the material retaining hopper 16 can be conveniently rotated through the torsion bar, so as to be conveniently taken out of the filter frame 11 .

[0044] Working principle:

[0045] Step 1: Place the filter frame 11 into the fixed chamber 3, turn the two second screws 13, and fix the filter frame 11 to the right wall of the inner cavity of the fixed chamber 3 through the two pressing plates 14. Close the cover 8 and connect the water source for use;

[0046] Step 2: The water flowing out of the second water inlet pipe 15 reaches the filter frame 11 for filtration, filtering the impurities between the hopper 16 and the filter screen;

[0047] Step 3: When the filter frame 11 needs to be cleaned, turn off the water source, turn the first screw 9 to open the cover 8, and then turn the threaded rod 4 to push the filter frame 11 out of the fixed bin 3 through the push plate 6 and take it out. Turn the material hopper 16 to separate the material hopper 16 from the filter frame 11, clean the impurities on the filter net, reinstall it, and use it again. This prevents impurities from clogging the valve core, reduces the abrasion of impurities on the inside of the valve body 1, and improves the service life of the automatic reflux valve.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-controlled reflux three-way valve body structure with good anti-blocking performance, comprising a valve body (1), characterized in that: A first water inlet pipe (2) is fixedly installed on the right side of the valve body (1), and a fixed bin (3) is fixedly installed on the right side of the first water inlet pipe (2). The bottom of the fixed bin (3) is threadedly connected to a threaded rod (4) with one end extending to the inner side of the fixed bin (3). The front and rear side walls and the rear side wall of the inner cavity of the fixed bin (3) are both provided with limiting grooves (5) symmetrically distributed in the front and rear directions. The opposite sides of the two limiting grooves (5) are slidably connected to the same push plate (6), and the push plate (6) is rotatably connected to the threaded rod (4). A rotating shaft (7) is fixedly installed on the top of the fixed bin (3), and a cover plate (8) is fixedly installed on the outer side of the rotating shaft (7). The cover The top of the plate (8) is threadedly connected to a first screw (9), the top of the fixed bin (3) is provided with a connecting groove (10) adapted to the first screw (9), the inner side of the fixed bin (3) is slidably connected to a filter frame (11), the bottom of the filter frame (11) is provided with a groove (12), the left side of the fixed bin (3) is threadedly connected to two second screws (13) symmetrically distributed in the upper and lower directions, the right sides of the two second screws (13) are fixedly installed with a pressing plate (14), the right side of the fixed bin (3) is fixedly installed with a second water inlet pipe (15), and the inner side of the filter frame (11) is threadedly connected to a material blocking hopper (16).

2. The self-controlled reflux three-way valve structure with good anti-blocking performance according to claim 1, characterized in that: The right side of the first water inlet pipe (2) is connected to the inner side of the fixed bin (3), and the left side of the second water inlet pipe (15) is connected to the inner side of the fixed bin (3).

3. The self-controlled reflux three-way valve structure with good anti-blocking performance according to claim 1, characterized in that: A sealing ring (17) is provided inside the fixed bin (3) and is located outside the threaded rod (4), and a sealing gasket (18) is fixedly installed on the right side of the filter frame (11).

4. The self-controlled reflux three-way valve structure with good anti-blocking performance according to claim 1, characterized in that: The push plate (6) is located inside the limiting groove (5), and a sealing ring is fixedly installed on the top of the fixed bin (3).

5. The self-controlled reflux three-way valve structure with good anti-blocking performance according to claim 1, characterized in that: A turntable is fixedly mounted on the bottom of the threaded rod (4), and an anti-slip groove is provided on the outer side of the turntable.

6. The self-controlled reflux three-way valve structure with good anti-blocking performance according to claim 1, characterized in that: The material blocking hopper (16) is arranged in a funnel shape, and a water inlet hole having the same inner diameter as the second water inlet pipe (15) is opened on the left side of the material blocking hopper (16).

7. The self-controlled reflux three-way valve structure with good anti-blocking performance according to claim 1, characterized in that: The outer side of the material stopping hopper (16) is provided with a thread, and the inner side of the material stopping hopper (16) is fixedly provided with a torsion bar.

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