CN211875215U

CN211875215U - Filter valve

Info

Publication number: CN211875215U
Application number: CN202020366704.1U
Authority: CN
Inventors: 李家德; 毛福财
Original assignee: Taizhou Aidi Xishengda Tube Co ltd
Current assignee: Taizhou Aidi Xishengda Tube Co ltd
Priority date: 2020-03-22
Filing date: 2020-03-22
Publication date: 2020-11-06
Anticipated expiration: 2030-03-22

Abstract

The utility model provides a filter valve belongs to valve manufacturing technical field. It has solved current strainer valve and has washd inconvenient, the unstable scheduling problem of work. This filter valve includes the valve body, the filter screen, the valve gap, the right side that the left side of valve body has into water end and valve body has a water outlet end, the filter screen is located the valve body, the filter screen includes at the bottom of the net and the dictyosome, the dictyosome is the cylinder-shape and the dictyosome top is the net mouth that the slope set up, valve gap threaded connection is in the top of valve body, the welding of net mouth has the round to bordure and have the round and outwards turn over the bulge loop that turns over, the support step that round inclination and bulge loop inclination are unanimous has in the valve body, the bulge loop is located the support step, bordure and contradict in the setting of valve body inner wall and make the dictyosome, the liquid clearance has. The utility model has the advantages of stable structure, convenient operation, convenient connection and the like.

Description

Filter valve

Technical Field

The utility model belongs to the technical field of the valve is made, a filter valve is related to.

Background

The filter valve is a device for filtering treatment, and is also an indispensable device of a pipeline series for conveying media, and is used for eliminating impurities in the media and preventing the granular impurities from entering a channel to cause blockage, so that fittings on equipment pipelines are protected from abrasion and blockage.

For example, chinese patent literature discloses an isostatic fluorine lined basket filter [ 201721361195.8; authorization notice number: CN207412919U ], it includes the valve body, the left side of valve body is provided with the delivery port and the right side is provided with the water inlet, the filter screen is installed to the inboard of water inlet, the filter screen includes lateral wall and filter core two parts, be provided with the buckle around the lateral wall, be connected through the buckle between filter screen and the water inlet, the top of valve body is equipped with the upper valve gap, the right side of upper valve gap is provided with drain hole, it sets up to link up between drain hole and the upper valve gap, the bottom of valve body is provided with the lower valve gap, be equipped with the supporting shoe between lower valve gap and the valve body, lower valve gap right side is provided with.

Impurity is blockked by the filter screen and is located between filter screen and the lower valve gap in foretell isostatic pressing lining fluorine basket filter's the water inlet, and impurity does not get into in the filter screen, need dismantle the upper valve gap during washing, and the upper valve gap is through a plurality of hex bolts connections, and it is convenient inadequately to dismantle, and it is also inconvenient to filter the guipure filter core, takes out the filter screen for the filter screen washs inconveniently, still need wash the impurity that is detained on the lower valve gap, washs also inconvenient inadequately.

Chinese patent literature also discloses a basket filter [ application number: 201720996355.X ], which comprises a valve body, a valve cover, a winding gasket, a filter screen, a bolt, a sewage discharge plug, an emptying valve and a cleaning plug, wherein the filter screen is arranged in the valve body, the valve cover is fixedly connected with the valve body through the bolt, the winding gasket is arranged between the valve body and the valve cover, the cleaning plug is in threaded connection with the side wall of the valve body, the sewage discharge plug is in threaded connection with the bottom surface of the valve body, the emptying valve is in threaded connection with the valve cover, and one end of the emptying valve extends into the filter screen. There are other basket filter patents, such as a quick-opening lid basket filter [ application No.: 201820647778.5, respectively; authorization notice number: CN208372608U ], a high-efficiency basket filter [ application No.: 201821465925.3, respectively; authorization notice number: CN209286812U ], a basket filter [ application No.: 201420772962.4, respectively; authorization notice number: CN204261453U ], substantially similar in structure.

Above-mentioned filter screen does not have among various basket filters and carries the position, gets to put inconveniently, and the filter screen location is firm inadequately moreover, and the medium strikes the filter screen and can cause the filter screen to rock, can cause filter screen net gape wearing and tearing, has shortened life, and it is also not convenient enough to go out water end connection.

Disclosure of Invention

The utility model aims at providing a structure steadiness is good, convenient operation and connect convenient filter valve to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: a filter valve comprises a valve body, a filter screen and a valve cover, wherein the left side of the valve body is provided with a water inlet end, the right side of the valve body is provided with a water outlet end, the bottom of the valve body is a closed end, the filter screen is positioned in the valve body and comprises a net bottom and a net body which are connected into a whole, the net body is cylindrical, the top of the net body is a net opening which is obliquely arranged, the valve cover is in threaded connection with the top of the valve body, the net opening is welded with a circle of edge covering and a circle of convex ring which is outwards turned over, the valve body is internally provided with a circle of supporting step with an inclination angle consistent with that of the convex ring, the lower end of the supporting step is positioned at the inner end of the water inlet end, the upper end of the supporting step is positioned at the inner end of the water outlet end, the convex ring is positioned on the supporting step, the edge covering is abutted against the inner wall of the, the edge cover is connected with a handle, and a quick connection structure for quickly connecting the pipe fittings is arranged at the water outlet end.

In foretell strainer valve, the structure of connecing soon including overlap in the play water and serve and have the internal screw thread locking cap, the inner of locking cap turn over to the enstrophe and keep off the shoulder in order to form, the outer wall of play water end annular groove has, annular groove in be equipped with the snap ring that has the breach, the inner of snap ring have to turn over to the enstrophe and supply to keep off the turn-ups that the shoulder leaned on, snap ring outer wall cover be equipped with sealed the pad.

In the filter valve, the snap ring is a conical ring with a notch, the end part with the small diameter of the snap ring is clamped into the annular groove, and the inner end with the large diameter of the snap ring is provided with a flange.

In an above-mentioned strainer valve, the sealed internal thread that fills up and lock the cap between have a clearance, the outer wall of sealed pad be the hemisphere face form and thickness reduces to the outer end side of sealed pad gradually, the outer end of play water end for reducing section and the external diameter of reducing section be less than the external diameter of play water end.

In the filter valve, the handle is U-shaped, and two ends of the handle are welded on the edge.

In the filter valve, the top of the handle is pressed against the top wall of the locked valve cover.

As another aspect, in the above-mentioned filtering valve, the handle is U-shaped, and two ends of the handle are hinged to the bag edge. During actual manufacturing, the two ends of the lifting handle are provided with the cylindrical rods which are vertically turned outwards, the covered edges are provided with hinge holes for the cylindrical rods to pass through, and the cylindrical rods cannot be separated from the hinge holes due to the elasticity of the lifting handle.

In the filter valve, the inner wall of the inner end of the water outlet end is provided with a reaming section, the inner diameter of the reaming section is larger than that of the water outlet end, the reaming section is transited to the inner wall of the water outlet end through a chamfer, and the inner diameter of the reaming section is equal to that of the water inlet end.

In the filter valve, the valve cover is embedded with the sealing ring, the inner wall of the top of the valve body is provided with a step for supporting the sealing ring, and the outer wall of the valve cover is provided with a convex shoulder protruding outwards in the radial direction.

Compared with the prior art, this filtering valve structure steadiness is good, goes out the water end and connects conveniently, and the leakproofness is good, and filter screen job stabilization nature is good, long service life, washs convenient operation moreover, need not the professional, and the user oneself can operate, avoids leading to the pipeline maintenance because of impurity blocks up, has reduced use cost.

Drawings

Fig. 1 is a structural sectional view of the filter valve.

Fig. 2 is a schematic structural diagram of a filter screen in the filter valve.

In the figure, 1, a valve body; 11. a water inlet end; 12. a water outlet end; 121. a reducing section; 122. a reaming section; 13. supporting a step; 2. a filter screen; 21. a net bottom; 22. a net body; 23. a handle; 3. a valve cover; 31. a shoulder is formed; 4. edge covering; 41. a convex ring; 5. a liquid passing gap; 6. a locking cap; 61. a shoulder block; 7. a snap ring; 71. flanging; 8. a gasket; 9. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1 and 2, the filter valve comprises a valve body 1, a filter screen 2 and a valve cover 3, wherein a water inlet end 11 is arranged on the left side of the valve body 1, a water outlet end 12 is arranged on the right side of the valve body 1, the bottom of the valve body 1 is a closed end, the filter screen 2 is made of stainless steel materials and is positioned in the valve body 1, the filter screen 2 comprises a screen bottom 21 and a screen body 22 which are connected into a whole, the screen body 22 is cylindrical, the top of the screen body 22 is an obliquely arranged screen opening, the valve cover 3 is connected to the top of the valve body 1 in a threaded manner, a circle of edge covering 4 is welded on the screen opening, the edge covering 4 is provided with a circle of convex ring 41 which is turned over outwards, a circle of supporting step 13 with an inclination angle consistent with that of the convex ring 41 is arranged in the valve body 1, the lower end of the supporting step 13 is positioned on the lower portion of the inner end of the water inlet end 11, a liquid passing gap 5 is arranged between the net bottom 21 and the valve body 1, the edge 4 is connected with a handle 23, and a quick connection structure for quickly connecting pipe fittings is arranged at the water outlet end 12.

When the filter valve is used, a medium enters the filter screen 2 from the water inlet end 11, impurities in the medium are filtered by the filter screen 2, the filtered medium flows through the liquid gap 5 and then flows out from the water outlet end 12, and the impurities are retained in the filter screen 2; when the filter screen is required to be cleaned, the valve cover 3 is unscrewed, the filter screen 2 can be conveniently taken out by the clamping handle 23, the filter screen 2 can be cleaned, and then the filter screen 2 and the valve cover 3 are installed again, so that the operation is convenient, no professional is required, the user can operate the valve cover by himself, and the pipeline maintenance caused by impurity blockage is avoided; the arrangement of the convex ring 41 and the edge cover 4 enables the filter screen 2 to be positioned stably, namely, the contact area between the convex ring 41 and the supporting step 13 is large, a medium with larger pressure cannot impact the filter screen 2 to cause the filter screen 2 to move downwards, so that the working stability of the filter screen 2 is ensured, the edge cover 4 also plays a supporting role, the filter screen 2 is prevented from shaking due to impact, the abrasion of a screen opening is avoided, and the service life of the filter screen 2 is prolonged; the quick connection structure enables the water outlet end 12 to be conveniently connected with the pipe fitting, and time and labor are saved.

In a further elaboration, the quick connection structure comprises a locking cap 6 which is sleeved on the water outlet end 12 and is provided with an internal thread, the inner end of the locking cap 6 is turned inwards to form a blocking shoulder 61, the outer wall of the water outlet end 12 is provided with an annular groove, a snap ring 7 with a notch is arranged in the annular groove, the inner end of the snap ring 7 is provided with a turned edge 71 which is turned outwards and is used for the blocking shoulder 61 to abut against, and a sealing gasket 8 is sleeved on the outer wall of the snap ring 7. The clamping ring 7 is matched with the annular groove, so that the water outlet end 12 does not need to be provided with a butting part for butting against the retaining shoulder 61, and the water outlet end 12 and the valve body 1 do not need to be separately arranged and in threaded connection, and the processing and the manufacturing are convenient; during assembly, the locking cap 6 is sleeved into the water outlet end 12, then the clamping ring 7 is sleeved, the clamping ring 7 is clamped into the annular groove due to the elasticity of the clamping ring 7, and then the sealing gasket 8 is sleeved; when the water outlet end 12 is connected with the connecting pipe, the connecting pipe with the external thread is abutted to the sealing gasket 8, then the locking cap 6 is screwed down until the retaining shoulder 61 is abutted to the flange 71, the connecting pipe is stably connected with the locking cap 6, and the sealing performance of the sealing gasket 8 is ensured.

The clamping ring 7 is a conical ring with a notch, the end part with the small diameter of the clamping ring 7 is clamped into the annular groove, and the inner end with the large diameter of the clamping ring 7 is provided with a flange 71, so that the clamping ring 7 has good elasticity, the end part with the small diameter of the clamping ring 7 is always clamped into the annular groove and cannot be separated, and the connection stability is good; have the clearance between the internal thread of sealed 8 and locking cap 6 of filling up, the outer wall of sealed 8 of filling up be hemispherical form and thickness and reduce gradually to sealed outer end side of filling up 8, the outer end of play water end 12 is that the external diameter of reducing section 121 and reducing section 121 is less than the external diameter of play water end 12, when play water end 12 is connected with the takeover, reducing section 121 reduces and interferes, be convenient for take over insert between sealed 8 and the locking cap 6 of filling up, the outer end of sealed 8 inserts in the takeover promptly, after locking cap 6 is screwed up, the outer end department of sealed 8 of filling up seals in the takeover inner wall, the outer wall deformation after sealed 8 leans on and will take over end seal, the leakproofness is good.

In the embodiment, the handle 23 is U-shaped, and two ends of the handle 23 are welded on the edge covering 4, so that the handle 23 is convenient for fingers or drag hooks to hook in, and the filter screen 2 is convenient to lift; the top of handle 23 pushes up and touches the roof in the valve gap 3 after the locking, and filter screen 2 has obtained handle 23's the effect that compresses tightly like this, and filter screen 2 that receives the turbulent flow, backward flow can not move up and lead to impurity to get into and cross liquid clearance 5, and filter screen 2 location is firm, job stabilization.

The inner wall of the inner end of the water outlet end 12 is provided with a reaming section 122, the inner diameter of the reaming section 122 is larger than the inner diameter of the water outlet end 12, the reaming section 122 is transited to the inner wall of the water outlet end 12 through a chamfer, the inner diameter of the reaming section 122 is equal to the inner diameter of the water inlet end 11, the arrangement of the reaming section 122 enables the inner end of the water outlet end 12 to have good trafficability, turbulence cannot be caused, the filter screen 2 is not easy to block, and the work is stable. The sealing ring 9 is embedded in the valve cover 3, the step for supporting the sealing ring 9 is arranged on the inner wall of the top of the valve body 1, the convex shoulder 31 protruding outwards in the radial direction is arranged on the outer wall of the valve cover 3, the convex shoulder 31 plays a limiting role, the phenomenon that the lifting handle 23 and the sealing ring 9 are damaged due to excessive screwing of the valve cover 3 is avoided, and the sealing ring 9 is located between the valve cover 3 and the valve body 1, so that the sealing performance is guaranteed.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a filter valve, includes valve body (1), filter screen (2), valve gap (3), the left side of valve body (1) the right side that has into water end (11) and valve body (1) has a water outlet end (12), the bottom of valve body (1) is the blind end, filter screen (2) be located valve body (1), filter screen (2) including the net end (21) and net body (22) that fuse, net body (22) be the cylinder-shape and net body (22) top net mouth that sets up for the slope, a serial communication port, valve gap (3) threaded connection in the top of valve body (1), the net mouth welding have a round bound (4) and bound (4) have a round convex ring (41) that outwards turn over and roll over, valve body (1) in have a round inclination and convex ring (41) inclination unanimous support step (13), the lower extreme of support step (13) be located the lower part of intaking end (11) and support step (13 inner ) The upper end of (12) the upper portion of inner end of outlet end, bulge loop (41) be located support step (13), bordure (4) and contradict in valve body (1) inner wall setting and make and have between dictyosome (22), net end (21) and valve body (1) and cross liquid clearance (5), bordure (4) be connected with handle (23), outlet end (12) department be equipped with the quick-connect structure that supplies the pipe fitting to connect soon.

2. The filter valve according to claim 1, wherein the quick-connection structure comprises a locking cap (6) sleeved on the water outlet end (12) and provided with an internal thread, the inner end of the locking cap (6) is turned inwards to form a shoulder (61), the outer wall of the water outlet end (12) is provided with an annular groove, a snap ring (7) with a notch is arranged in the annular groove, the inner end of the snap ring (7) is provided with a flange (71) which is turned outwards and is used for the shoulder (61) to abut against, and a sealing gasket (8) is sleeved on the outer wall of the snap ring (7).

3. A filter valve as claimed in claim 2, wherein said snap ring (7) is a tapered ring with a gap, the end of the snap ring (7) with a small diameter is snapped into the annular groove and the inner end of the snap ring (7) with a large diameter is provided with a flange (71).

4. A filter valve according to claim 3, wherein a gap is provided between the sealing gasket (8) and the internal thread of the locking cap (6), the outer wall of the sealing gasket (8) is hemispherical and the thickness of the outer wall of the sealing gasket (8) is gradually reduced towards the outer end side of the sealing gasket (8), the outer end of the water outlet end (12) is a reduced diameter section (121), and the outer diameter of the reduced diameter section (121) is smaller than the outer diameter of the water outlet end (12).

5. A filter valve according to claim 1 or 2 or 3 or 4, wherein the handle (23) is U-shaped and the ends of the handle (23) are welded to the tipping (4).

6. A filter valve according to claim 5, characterised in that the top of the handle (23) abuts the top wall of the locked valve cover (3).

7. A filter valve according to claim 1 or 2 or 3 or 4, wherein the handle (23) is U-shaped, and both ends of the handle (23) are hinged to the tipping (4).

8. A filter valve according to claim 6 wherein the inner wall of the inner end of the outlet end (12) has a section (122) with a larger internal diameter than the outlet end (12), the section (122) having a chamfer transition to the inner wall of the outlet end (12), the section (122) having an internal diameter equal to the internal diameter of the inlet end (11).

9. A filter valve according to claim 8, wherein the valve cover (3) is embedded with a sealing ring (9), the inner wall of the top of the valve body (1) is provided with a step for supporting the sealing ring (9), and the outer wall of the valve cover (3) is provided with a radially convex shoulder (31).