Filtering type flap valve

Abstract

The filter type flap valve comprises a check valve body, the check valve body comprises a valve body and a valve plate, a through ring is vertically fixed to the middle of the inner wall of the valve body, a sealing groove is formed in the liquid outlet end face of the through ring, the valve plate is arranged on the liquid outlet end face of the through ring, and the top face of the valve plate is rotationally connected to the top of the sealing groove of the through ring. The filter part comprises a threaded barrel shell and a filter barrel, one end of the threaded barrel shell is horizontally communicated with and fixedly provided with the filter barrel, an inclined mesh is fixed to the end, close to the threaded barrel shell, of the interior of the filter barrel, the side, located at the liquid inlet end of the through ring, of the inner wall of the valve body is provided with an internal thread, and the internal thread and the threaded barrel shell are assembled in a threaded mode. The problems that when fluid is conveyed, impurities exist in the fluid, the impurities are blocked by a valve clack, the internal impurities can adhere to a sealing groove between the valve clack and a valve body, and therefore the valve clack and the valve body are not tightly closed, and the check leakproofness of the check valve is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve technical field more specifically, relate to a filter type flap. BACKGROUND

[0002] The flap is also called check valve or non-return valve and is a kind of automatic closing valve, mainly used to prevent fluid backflow, including valve body and valve clapper.

[0003] The utility model discloses a check valve with the announcement number CN206754490U, including valve body filter piece, valve body is fixedly connected with first pipeline and second pipeline, valve body is equipped with fixed shaft, fixed shaft is sleeved with valve rod, valve rod is fixedly connected with the valve clapper that closes first pipeline, the diameter of valve clapper is greater than the diameter of first pipeline, valve body is fixedly connected with limit stop, limit stop is provided with first through slot, when valve clapper rotates around fixed shaft, valve rod is in first through slot, when first pipeline is filled with water, water flow impacts valve clapper and drives valve rod to rotate around fixed shaft. Since valve rod is in first through slot, so the rotation track of valve rod is limited by the slot wall of first through slot. At this moment, valve clapper and first pipeline form a gap, and water flow flows through valve body from first pipeline to second pipeline. When there is no water flow from first pipeline, valve clapper is not impacted by water flow and falls along the track of first through slot wall to one end of first pipeline due to its own gravity. At this moment, valve clapper closes first pipeline. When water flows back from second pipeline, since valve rod can only rotate unilaterally, so the water flowing through second pipeline cannot reach first pipeline through valve clapper. Since check valve is used for a long time, the rotation of valve clapper often deviates, so the utility model has the limiting effect on the rotation track of valve rod, finally achieves the purpose of long-term use.

[0004] But the above-mentioned check valve does not have filter component in use, and there are impurities in fluid when conveying fluid, these impurities are blocked by valve clapper, and the internal impurities can adhere in the sealing groove between valve clapper and valve body, so that valve clapper and valve body are not closed tightly, which affects the check and sealing property of check valve. UTILITY MODEL CONTENTS

[0005] 1. Technical problem to be solved

[0006] In view of the problems in the prior art, the utility model aims at providing a filter type flap, which overcomes the above technical defects.

[0007] 2. Technical scheme

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] The utility model provides a filter type flap valve, including check valve body, check valve body includes valve body and valve plate, the middle part of the inner wall of valve body is vertically fixed with through ring, and the liquid outlet end surface of through ring is equipped with sealing groove, the valve plate is arranged on the liquid outlet end surface of through ring, and the top surface of valve plate is rotatably connected on the top of sealing groove of through ring, filter piece includes screw shell and filter cartridge, one end of screw shell is fixed with filter cartridge and is communicated horizontally, and the inside of filter cartridge is fixed with inclined screen near one end of screw shell, the inner wall of valve body is equipped with internal thread on one side of through ring liquid inlet end, and internal thread is screw assembled with screw shell.

[0010] Further, the top surface of the valve plate is horizontally fixed with a rotating drum, and the top of the sealing groove of the through ring is horizontally fixed with a rotating shaft. The rotating drum on the valve plate is rotatably connected to the rotating shaft of the through ring.

[0011] Further, the bottom of the outer wall of the valve body is vertically provided with a screw cylinder on one side of the liquid inlet end of the through ring, and the top end of the screw cylinder is fixed through the valve body.

[0012] Further, a receiving cylinder is vertically arranged in the screw cylinder, and a material dropping hole is vertically and throughly provided on the filter cartridge and is inserted into the top end of the receiving cylinder.

[0013] Further, an external thread is provided on the outer wall of the filter cartridge, and the external thread is screw assembled with the filter cartridge.

[0014] Further, a rotating frame is vertically fixed in the inside of the filter cartridge, and a material scraping rotating shaft is horizontally rotatably connected to the middle part of the rotating frame.

[0015] Further, a plurality of scraper blades are uniformly arranged on the outer wall of the material scraping rotating shaft, and the outer ends of the plurality of scraper blades on the material scraping rotating shaft are abutted against the inner wall of the filter cartridge.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] In use, the filter piece is inserted from the liquid inlet end of the valve body, the screw shell on the filter piece is screw assembled with the internal thread of the inner wall of the valve body by rotating the filter cartridge, the fluid introduced through the liquid inlet end of the valve body is filtered by the filter cartridge and the inclined screen to remove the impurities in the fluid, and then the fluid passes through the through ring to push the valve plate to rotate, when the fluid flows back, the fluid pushes the valve plate to deflect on the through ring, pushes the valve plate to rotate downward, and pushes the valve plate to tightly abut in the sealing groove of the through ring, thereby completing the blocking of the fluid backflow, so that the impurities in the fluid are filtered when the filter piece conveys the fluid, and the impurities in the fluid are prevented from adhering to the sealing groove between the valve disc and the valve body, thereby causing the valve disc and the valve body to not tightly close, affecting the check sealing property of the check valve, and ensuring the check sealing property of the check valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1The whole structure schematic diagram of the utility model is shown in the figure.

[0020] Figure 2 The whole structure schematic diagram of the utility model in the decomposed state is shown in the figure.

[0021] Figure 3 The whole structure schematic diagram of the utility model in the decomposed state is shown in the figure.

[0022] Figure 4 The whole structure schematic diagram of the utility model in the decomposed state is shown in the figure.

[0023] Figure 5 The whole structure schematic diagram of the utility model in the decomposed state is shown in the figure.

[0024] Mark explanation in the figure:

[0025] 1, check valve body; 11, valve body; 12, through ring; 13, valve plate; 14, internal thread; 15, screw cylinder; 2, filter; 21, threaded cylinder shell; 22, filter cartridge; 23, inclined mesh; 24, blanking hole; 25, receiving cylinder; 251, external thread; 26, rotating frame; 27, scraping shaft. Specific implementation

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5The utility model provides a filter type flap valve, including check valve body 1 and filter piece 2, check valve body 1 includes valve body 11 and valve plate 13, the inner wall middle part of valve body 11 is vertically fixed with through ring 12, and the liquid outlet end surface of through ring 12 is provided with sealing groove, valve plate 13 is arranged on the liquid outlet end surface of through ring 12, and the top surface of valve plate 13 is rotatably connected on the top of sealing groove of through ring 12, filter piece 2 includes threaded cylinder shell 21 and filter cartridge 22, one end of threaded cylinder shell 21 is fixed with filter cartridge 22 and communicates horizontally, and the inside of filter cartridge 22 is fixed with inclined screen 23 near one end of threaded cylinder shell 21, the inner wall of valve body 11 is provided with internal thread 14 on the side of liquid inlet end of through ring 12, and internal thread 14 is threadedly assembled with threaded cylinder shell 21, the top surface of valve plate 13 is horizontally fixed with rotating drum, the top of sealing groove of through ring 12 is horizontally fixed with rotating shaft, and the rotating drum on valve plate 13 is rotatably connected on the rotating shaft of through ring 12, filter piece 2 is inserted from the liquid inlet end of valve body 11 in use, and rotating filter cartridge 22 drives threaded cylinder shell 21 on filter piece 2 to be threadedly assembled with internal thread 14 of the inner wall of valve body 13, the fluid guided into the liquid inlet end of valve body 11 is filtered to remove the impurities in the fluid through filter cartridge 22 and inclined screen 23, and then the fluid passes through through ring 12 and pushes valve plate 13 to rotate, when the fluid backflows, the fluid pushes valve plate 13 to deflect on through ring 12, pushes valve plate 13 to rotate downwards, pushes valve plate 13 to be tightly attached in the sealing groove of through ring 12, and the fluid backflow is blocked, so that the impurities existing in the fluid are filtered when the fluid is conveyed, the impurities are filtered, the impurities existing in the fluid are prevented from being attached in the sealing groove between valve disc and valve body, the valve disc and valve body are prevented from being not tightly closed, the problem that the check valve tightness is affected is solved, and the check valve tightness is ensured.

[0028] Referring to Figure 3 , Figure 4 and Figure 5 , the outer wall bottom of valve body 11 is vertically provided with screw cylinder 15 on the side of liquid inlet end of through ring 12, and the top end of screw cylinder 15 is fixed on valve body 11 in penetration, the receiving cylinder 25 is vertically arranged in screw cylinder 15, the falling hole 24 is vertically and penetratingly arranged on the outer wall of filter cartridge 22, and the top end of receiving cylinder 25 is penetratingly inserted into the falling hole 24. The outer thread 251 is arranged on the outer wall of filter cartridge 22, and the outer thread 251 is threadedly assembled with filter cartridge 22, in use, the receiving cylinder 25 is threadedly assembled in the screw cylinder 15, the top end of receiving cylinder 25 is inserted into the falling hole 24 of filter cartridge 22, the impurities are filtered by the inclined screen 23 in the inside of filter cartridge 22, and the impurities fall into the receiving cylinder 25 through the falling hole 24 on the inclined screen 23, and the impurities are collected and cleaned by disassembling the receiving cylinder 25.

[0029] Referring to Figure 4The inside of the filter cylinder 22 is vertically fixed with a rotating frame 26, and the middle part of the rotating frame 26 is horizontally connected with a scraping rotating shaft 27, and the outer wall of the scraping rotating shaft 27 is uniformly provided with a plurality of scrapers, and the outer ends of the plurality of scrapers on the scraping rotating shaft 27 are pressed against the inner wall of the filter cylinder 22. In use, when the fluid is guided into the inside of the filter cylinder 22, the flowing fluid pushes the spiral scrapers on the scraping rotating shaft 27 to drive the rotating shaft 27 to rotate, and the scrapers on the rotating shaft 27 scrape the impurities on the inner wall of the filter cylinder 22, effectively removing the impurities filtered on the inner wall of the filter cylinder 22.

[0030] In use, the filter element 2 is inserted from the liquid inlet end of the valve body 11, and the threaded cylinder shell 21 on the filter element 2 is screwed and assembled with the internal thread 14 on the inner wall of the valve body 13 to drive the rotating filter cylinder 22. The fluid introduced through the liquid inlet end of the valve body 11 is filtered by the filter cylinder 22 and the inclined mesh 23 to remove the impurities in the fluid, and then the fluid passes through the through ring 12 to drive the valve plate 13 to rotate, and in the later stage, the fluid backflow drives the valve plate 13 to deflect on the through ring 12 to drive the valve plate 13 to rotate downward, and the valve plate 13 is tightly attached in the sealing groove of the through ring 12 to complete the fluid backflow blocking. The receiving cylinder 25 is screwed and assembled in the screw cylinder 15, the top end of the receiving cylinder 25 is inserted into the material falling hole 24 of the filter cylinder 22, the inclined mesh 23 in the inside of the filter cylinder 22 filters and removes the impurities, and the impurities fall into the receiving cylinder 25 through the material falling hole 24 on the inclined mesh 23, and in the later stage, the receiving cylinder 25 is disassembled to pour and clean the collected impurities.

[0031] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A filter flap, characterized in that The utility model provides a filter type check valve, including check valve body (1) and filter piece (2), check valve body (1) includes valve body (11) and valve plate (13), the middle part of the inner wall of valve body (11) is vertically fixed with through ring (12), and the liquid outlet end surface of through ring (12) is provided with sealing groove, valve plate (13) is arranged on the liquid outlet end surface of through ring (12), and the top surface of valve plate (13) is rotatably connected on the top of sealing groove of through ring (12), filter piece (2) includes threaded cylinder shell (21) and filter cartridge (22), one end of threaded cylinder shell (21) is fixedly connected with filter cartridge (22) horizontally, and the inside of filter cartridge (22) is fixed with inclined screen (23) near one end of threaded cylinder shell (21), the inner wall of valve body (11) is provided with internal thread (14) on the liquid inlet end side of through ring (12), and internal thread (14) is screw assembled with threaded cylinder shell (21).

2. A filter flap according to claim 1, characterised in that: The top surface of valve plate (13) is fixed with a rotating drum horizontally, and the top of the sealing groove of through ring (12) is fixed with a rotating shaft horizontally.

3. A filter flap according to claim 1, wherein: The bottom of the outer wall of valve body (11) is provided with a screw cylinder (15) vertically on the liquid inlet end side of through ring (12), and the top end of screw cylinder (15) is fixed through the valve body (11).

4. A filter flap according to claim 3, wherein: The screw cylinder (15) is vertically provided with a receiving cylinder (25), and the filter cartridge (22) is vertically provided with a material falling hole (24), and the material falling hole (24) is inserted into the top end of the receiving cylinder (25).

5. A filter flap according to claim 4, characterised in that: The outer wall of the filter cartridge (22) is provided with an external thread (251), and the external thread (251) is screw assembled with the filter cartridge (22).

6. A filter flap according to claim 1, characterized in that: The inside of the filter cartridge (22) is vertically fixed with a rotating frame (26), and the middle part of the rotating frame (26) is rotatably connected with a material scraping rotating shaft (27).

7. A filter flap according to claim 6, characterised in that: The outer wall of the material scraping rotating shaft (27) is uniformly provided with a plurality of scrapers, and the outer ends of the plurality of scrapers on the material scraping rotating shaft (27) are pressed against the inner wall of the filter cartridge (22).

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