CN106870757B

CN106870757B - Filtering ball valve

Info

Publication number: CN106870757B
Application number: CN201710210373.5A
Authority: CN
Inventors: 赵香荔
Original assignee: Renard Fluid Intelligence Technology Jiangsu Ltd By Share Ltd
Current assignee: Renard Fluid Intelligence Technology Jiangsu Ltd By Share Ltd
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2023-05-26
Anticipated expiration: 2037-03-31
Also published as: CN106870757A

Abstract

The invention provides a filtering ball valve, and belongs to the technical field of machinery. It has solved the impurity of current filtering ball valve interception and has influenced the normal use scheduling problem of ball valve easily. The filtering ball valve comprises a valve body and a ball core, wherein a cleaning opening is formed in the valve body, a blocking cap is arranged in the cleaning opening, a water passing channel and a sewage draining channel are formed in the ball core, a filter screen is fixed in the water passing channel, a sewage draining cylinder is arranged in the cleaning opening, the inner end of the sewage draining cylinder stretches into the sewage draining channel, the outer end of the sewage draining cylinder is propped against the blocking cap, a convex annular convex ring is arranged on the inner side surface of the inlet end of the sewage draining channel, the inner end surface of the sewage draining cylinder is propped against the outer end surface of the convex ring, the inner side surface of the convex ring protrudes out of the inner side surface of the sewage draining cylinder, the filter screen comprises a net part and a fixing part arranged on the outer edge of the net part, an annular clamping groove is formed in the wall surface of the water passing channel, the outer edge of the fixing part is clamped into the clamping groove, and the inner edge of the fixing part protrudes out of the water passing channel. The filtering ball valve has the advantages of being not easy to lose efficacy when filtering is realized.

Description

Filtering ball valve

Technical Field

The invention belongs to the technical field of machinery, and relates to a filtering ball valve.

Background

The standard GB/T21465-2008 valve term defines a valve as: a population of mechanical products with movable mechanisms for controlling media in a conduit. The valve can be divided into a gate valve, a stop valve, a throttle valve, a ball valve, a butterfly valve, a plug valve, a check valve and the like according to the structure. Among them, ball valves are very common valves, and the standard defines ball valves as: the opening and closing part (ball) is driven by the valve rod and rotates around the axis of the valve rod. The medium in the pipeline can be circulated or cut off through the rotation of the sphere; when the medium circulates, the ball valve is in an open state; when the flow of medium circulation is maximum, the ball valve is in a complete opening state; when the medium is cut off and circulated, the ball valve is in a cut-off state.

The medium in the pipeline, such as ordinary water, often contains various impurities, and excessive impurities can block the pipeline, the outlet and the like to influence the normal supply of the medium, so that the medium in the pipeline needs to be filtered and the filtered impurities are cleaned out of the pipeline system. The filter is generally added into the pipeline, and the filter has good filtering effect but needs to occupy a certain space for installation, and the maintenance of some filters is inconvenient.

The Chinese patent literature data discloses ball valves with filtering devices [ application number: 2008201715051.0; authorized bulletin number: CN201318466Y ] comprising a valve body having an axial opening and a first collar with an axial hole in a direction perpendicular to the axial direction of the valve body; the spherical valve core is provided with a flow hole and is rotatably arranged in the valve body; the handle and the valve rod are arranged in the shaft hole, and the two ends of the handle are respectively connected with the spherical valve core and the handle; the valve core is fixed with a filter disc at the medium outlet end of the flow hole and is also provided with a through hole which is perpendicular to and communicated with the flow hole; the valve body is also provided with a second convex neck which is opposite to the shaft hole and provided with a drain hole in the direction perpendicular to the axial direction, the inner end of the drain hole is aligned with the through hole of the valve core, and the outer end of the drain hole is closed by a detachable end cover. A cylindrical filter screen is arranged in the sewage discharging hole, one end of the filter screen is in butt joint with the through hole of the valve core, and the other end of the filter screen is abutted against the inner step surface of the end cover.

The filter disc is arranged in the valve core of the ball valve, and meanwhile, impurities filtered out can be cleaned out of the pipeline through the sewage draining hole, so that the impurities in the pipeline can be filtered without additionally adding a filter. However, the filter plate is arranged in the ball valve, so that impurities are easily accumulated at the joint of the valve core and the valve body, and the valve core cannot rotate. In the ball valve, the cylindrical filter screen is only inserted in the drain hole, shake is easy to occur under the impact of water flow, impurities filtered by the filter screen are easy to enter the inner cavity of the valve body mounting valve core from a gap between the filter screen and the wall of the drain hole, and the rotation of the valve core can be influenced by the accumulation of the impurities in the inner cavity of the valve body mounting valve core, so that the ball valve cannot adjust the flow and even cannot be closed. And because this ball valve passes through the briquetting fixed filter piece, the impurity that the filter piece was filtered out piles up in the medial surface department of briquetting easily, and is difficult for entering into the blowdown downthehole, leads to the excessive influence normal passage of rivers of impurity that piles up in filter screen department.

Disclosure of Invention

The invention aims at solving the problems existing in the prior art, and provides a filtering ball valve, which solves the technical problem that the ball valve is not easy to fail while filtering is realized.

The aim of the invention can be achieved by the following technical scheme:

the utility model provides a filtering ball valve, includes the valve body, have the valve pocket in the valve pocket, install the ball core in the valve pocket, still have water inlet, delivery port and the clearance mouth with the valve pocket intercommunication respectively on the valve body, the export internal thread connection of clearance mouth has the stifled cap, have the water channel that runs through the ball core on the ball core, water inlet end and the water outlet end of water channel can communicate with water inlet and delivery port respectively, the ball core has the drain channel, the drain channel is located between water inlet end and the water outlet end of water channel, the both ends of drain channel communicate with water channel and clearance mouth respectively, water outlet end internal fixation of water channel has the filter screen, be provided with in the clearance mouth and be the blow-off section of thick bamboo that is the tube-shape, the inner of blow-off section of thick bamboo stretches into in the drain channel, the outer end of thick bamboo is supported and is leaned on the stifled cap, its characterized in that, have the convex bulge on the medial surface of water channel entry end and be on the outer terminal surface of bulge collar, and the inboard bulge of bulge on the drain section of thick bamboo, the screen portion is provided with the fixed slot along the inner side of the fixed slot of filter screen portion, the fixed slot is provided with in the inner side of the fixed slot along the inner side of the filter screen portion.

The water enters the valve body from the water inlet of the valve body, then enters the ball core from the water inlet end of the water passing channel of the ball core, and then flows out from the water outlet end of the water passing channel to enter the water outlet of the valve body. Because the filter screen has been set up at the play water end of water channel, the impurity in the water can be intercepted here when the filter screen, because the interior side along protrusion water channel of fixed part, have some water to be stopped and form the vortex in this department at the interior edge department of the fixed part of filter screen, the water that will flow back through here will be partly enter into the trapway, thereby carry the impurity that filters out of filter screen into the trapway and deposit, can prevent that the impurity from piling up the pass that influences normal rivers in filter screen department, make the ball valve be difficult for inefficacy. The convex ring protruding out of the inner side surface of the sewage draining cylinder is arranged on the inner side surface of the inlet end of the sewage draining channel, the inner end surface of the sewage draining cylinder is attached to the outer end surface of the convex ring, impurities wrapped and clamped by vortex flow can be smoothly introduced into the inner cavity of the sewage draining cylinder, the impurities wrapped and clamped by vortex flow are prevented from flowing into a gap between the sewage draining cylinder and the sewage draining channel, the impurities are prevented from entering between the ball core and the valve body, the ball core is guaranteed to rotate freely, and the ball valve is not easy to lose efficacy.

In the filtering ball valve, the inner end surface of the convex ring is flush with the inner side surface of the water passing channel. Therefore, impurities wrapped and clamped by the vortex flow can smoothly enter the sewage draining cylinder, the accumulation of the impurities in the water channel is reduced, the normal water flow is affected, and the ball valve is not easy to fail.

In the filtering ball valve, the outer side surface of the inner end of the sewage draining cylinder is attached to the inner side surface of the sewage draining channel, and the inner side surface of the sewage draining channel is in arc transition with the outer surface of the ball core to form a transition surface.

The outer side surface of the inner end of the blow-down cylinder is attached to the inner side surface of the blow-down channel, so that impurities can be prevented from entering between the ball core and the valve body from the clearance between the blow-down cylinder and the blow-down channel, the ball core can be ensured to rotate freely, and the ball valve is not easy to fail. The transition surface has guiding function, so that the sewage draining cylinder can smoothly enter the sewage draining channel, and the outer side surface of the sewage draining cylinder is abutted against the inner side surface of the sewage draining channel.

In the filtering ball valve, the inner end face of the blocking cap is provided with a groove, the outer end of the pollution discharge barrel is inserted into the groove, the outer end face of the pollution discharge barrel is abutted against the bottom face of the groove, and the outer side face of the outer end of the pollution discharge barrel is abutted against the side wall of the groove.

The pollution discharge cylinder is arranged in such a way, so that impurities can be prevented from entering between the valve body and the ball core from the clearance between the lower end of the pollution discharge cylinder and the blocking cap, and the ball valve is not easy to fail.

In the above-mentioned filtering ball valve, the breach has a plurality ofly and circumference equidistance to be arranged on the fixed part. Thus, the filter screen can be conveniently installed and fixed.

In the above-mentioned filtering ball valve, the mesh portion and the fixing portion are fixed by welding and are integrally connected. Therefore, the net part and the fixing part are firmly connected, and the filter screen is convenient to process. Meanwhile, the gap between the filter screen part and the fixed part is eliminated, and residues and accumulation of impurities at the filter screen are reduced.

Compared with the prior art, the invention has the following advantages:

the filter screen includes the net portion and sets up the fixed part at the outer edge of net portion, in the draw-in groove was gone into to the fixed part card, and the medial surface of protruding water channel is followed to the interior of fixed part, set up the bulge loop of protrusion aide on the medial surface of trapway simultaneously, and the interior terminal surface of trapway is pasted on the lower terminal surface of bulge loop, make the impurity that is filtered out by the filter screen can enter into the trapway smoothly, prevent impurity pile up in filter screen department, prevent simultaneously that impurity from entering into in the clearance between valve body and the ball core, make the ball core rotate smoothly, make the ball valve difficult inefficacy. The inner end face of the convex ring is flush with the inner side face of the water passing channel, so that impurities can be further guaranteed to enter the sewage discharging barrel, the impurities are prevented from accumulating in the water passing channel, and the ball valve is not easy to fail. The inner side surface of the blow-down cylinder is abutted against the inner side surface of the blow-down channel, and meanwhile, the inner side surface of the blow-down channel is in arc transition with the outer surface of the ball core to form a transition surface, so that impurities are further prevented from entering between the valve body and the ball core, and the ball valve is not easy to fail.

Drawings

FIG. 1 is a schematic cross-sectional view of the present filter ball valve;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a transverse cross-sectional view of the core of the present filter ball valve;

fig. 4 is a schematic front view of the filter screen in the present filter ball valve.

In the figure, 1, a valve body; 1a, valve cavity; 1b, a water inlet; 1c, a water outlet; 1d, cleaning the mouth; 2. a core; 2a, a water passing channel; 2a1, a clamping groove; 2b, a sewage disposal channel; 2b1, a convex ring; 2b2, transition surfaces; 3. a blocking cap; 3a, grooves; 4. a filter screen; 4a, a net part; 4b, a fixing part; 4b1, notch; 5. a sewage discharge cylinder.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1-4, the filtering ball valve comprises a valve body 1, wherein a valve cavity 1a is arranged in the valve body 1, a water inlet 1b, a water outlet 1c and a cleaning port 1d which are respectively communicated with the valve cavity 1a are also arranged on the valve body 1, and the outlet of the cleaning port 1d faces downwards. The ball core 2 is arranged in the valve cavity 1a, the upper end of the ball core 2 is fixedly connected with a valve rod, and the upper end of the valve rod extends out of the upper end of the valve body 1 and is fixedly connected with a handle. A sealing element is arranged between the valve rod and the valve body 1, the upper end of the valve body 1 is connected with a plug, and the lower end of the plug is abutted against the sealing element to fix the sealing element between the valve body 1 and the valve rod. A first sealing ring is arranged between the valve body 1 and the ball core 2, and the first sealing ring is abutted against the valve body 1 and the ball core 2 to form a seal; the water inlet 1b of the valve body 1 is fixedly connected with a valve cap, a second sealing ring is arranged between the valve cap and the ball core 2, and the second sealing ring is abutted against the valve cap and the ball core 2 to form sealing.

The ball core 2 is provided with a water passing channel 2a penetrating through the ball core 2, the water inlet end and the water outlet end of the water passing channel 2a can be respectively communicated with the water inlet 1b and the water outlet 1c, the ball core 2 is provided with a sewage draining channel 2b, the sewage draining channel 2b is positioned between the water inlet end and the water outlet end of the water passing channel 2a, the outlet of the sewage draining channel 2b faces downwards, and the two ends of the sewage draining channel 2b are respectively communicated with the water passing channel 2a and the cleaning port 1 d. The filter screen 4 is fixed in the water outlet end of the water channel 2a, the filter screen 4 comprises a screen part 4a and a fixing part 4b arranged at the outer edge of the screen part 4a, and the screen part 4a is provided with meshes. The fixing portion 4b is an elastic annular steel sheet, a plurality of notches 4b1 are arranged on the outer edge of the fixing portion 4b, the notches 4b1 are circumferentially and equidistantly arranged on the fixing portion 4b, the number of the notches 4b1 can be two, three, four, five, six or more, and the number of the notches 4b1 can be only one. The mesh portion 4a and the fixing portion 4b are fixed and connected integrally by welding. The wall surface of the water channel 2a is provided with a circular clamping groove 2a1, the outer edge of the fixing part 4b is clamped into the clamping groove 2a1, and the inner edge of the fixing part 4b protrudes out of the inner side surface of the water channel 2 a. The outlet end internal thread of the cleaning port 1d is connected with a blocking cap 3, a cylindrical sewage draining cylinder 5 is arranged in the cleaning port 1d, and a water passing small hole for water supply to pass through can be arranged on the side wall of the sewage draining cylinder 5. The inner end of the sewage cylinder 5 extends into the sewage channel 2b, and the outer end of the sewage cylinder 5 abuts against the plugging cap 3. The inner side surface of the inlet end of the sewage disposal channel 2b is provided with a convex annular convex ring 2b1, and the inner end surface of the convex ring 2b1 is flush with the inner side surface of the water passing channel 2 a. The inner end surface of the sewage cylinder 5 is abutted against the outer end surface of the convex ring 2b1, the outer end surface of the inner end of the sewage cylinder 5 is abutted against the inner side surface of the sewage channel 2b, and the inner side part of the convex ring 2b1 protrudes out of the inner side surface of the sewage cylinder 5. The inner side surface of the sewage disposal channel 2b is in arc transition with the outer surface of the ball core 2 and forms a transition surface 2b2. The inner end face of the plugging cap 3 is provided with a groove 3a, the outer end of the pollution discharge barrel 5 is inserted into the groove 3a, the outer end face of the pollution discharge barrel 5 is abutted against the bottom face of the groove 3a, and the outer side face of the outer end of the pollution discharge barrel 5 is abutted against the side wall of the groove 3 a. The inner end of the plugging cap 3 is inserted into the cleaning port 1d and is in threaded connection, a convex baffle ring is arranged on the outer side surface of the outer end of the plugging cap 3, and the baffle ring is abutted against the outer edge of the outlet end of the cleaning port 1 d.

The water enters the water passing channel 2a of the ball core 2 through the valve cap, and then flows out from the water outlet end of the water passing channel 2a and enters the water outlet 1c of the valve body 1. Because the filter screen 4 is arranged at the water outlet end of the water passing channel 2a, impurities in water can be intercepted at the filter screen 4 when the water passes through the filter screen 4, and because the inner edge of the fixing part 4b protrudes out of the inner side surface of the water passing channel 2a, a part of water is blocked at the inner edge of the fixing part 4b of the filter screen 4 and forms vortex flow at the position, the water passing through the position can partially flow back into the sewage draining channel 2b, so that the impurities filtered out by the filter screen 4 are brought into the sewage draining channel 2b and deposited, the impurities can be prevented from accumulating at the position of the filter screen 4 to influence the passing of normal water flow, and the ball valve is not easy to lose efficacy. The convex ring 2b1 protruding out of the inner side surface of the blow-down barrel 5 is arranged on the inner side surface of the inlet end of the blow-down channel 2b, and the inner end surface of the blow-down barrel 5 is attached to the outer end surface of the convex ring 2b1, so that impurities wrapped and clamped by vortex flow can smoothly enter the inner cavity of the blow-down barrel 5, the impurities wrapped and clamped by vortex flow are prevented from flowing into a gap between the blow-down barrel 5 and the blow-down channel 2b, the impurities are prevented from entering between the ball core 2 and the valve body 1, the ball core 2 is prevented from freely rotating, and the ball valve is not easy to lose efficacy.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof 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 filtering ball valve, includes valve body (1), have valve pocket (1 a) in valve body (1), install ball core (2) in valve pocket (1 a), still have water inlet (1 b), delivery port (1 c) and clearance mouth (1 d) with valve pocket (1 a) intercommunication respectively on valve body (1), the export female screw connection of clearance mouth (1 d) has stifled cap (3), have on ball core (2) and run through water channel (2 a) of ball core (2), water inlet end and the water outlet end of water channel (2 a) can communicate with water inlet (1 b) and delivery port (1 c) respectively, ball core (2) have blowoff passageway (2 b), blowoff passageway (2 b) are located between water inlet end and the water outlet end of water channel (2 a), the both ends of blowoff passageway (2 b) communicate with water channel (2 a) and clearance mouth (1 d) respectively, water outlet end internal fixation of water channel (2 a) has water outlet end (4) that runs through ball core (2), water inlet end and water outlet end can be with water inlet (1 b) and delivery port (1 c) intercommunication, the water outlet end (2 b) of water channel (2 b) is located in a) has a bulge out of a drum (5) and is provided with in the filter screen (5) and is protruding on the side surface (5) of a) and is in a blowoff drum (5), the inner end face of the sewage draining cylinder (5) is attached to the outer end face of the convex ring (2 b 1), the inner side face of the convex ring (2 b 1) protrudes out of the sewage draining cylinder (5), the filter screen (4) comprises a screen part (4 a) and a fixing part (4 b) arranged on the outer edge of the screen part (4 a), the screen part (4 a) is provided with meshes, a notch (4 b 1) is arranged on the outer edge of the fixing part (4 b), an annular clamping groove (2 a 1) is formed in the wall face of the water passing channel (2 a), the outer edge of the fixing part (4 b) is clamped into the clamping groove (2 a 1), the inner edge of the fixing part (4 b) protrudes out of the inner side face of the water passing channel (2 a), and the inner edge of the fixing part (4 b) close to the convex ring (2 b 1) protrudes out of the inner end face of the convex ring (2 b 1).

2. The filtering ball valve according to claim 1, characterized in that the inner end surface of the convex ring (2 b 1) is flush with the inner side surface of the water passage (2 a).

3. The filtering ball valve according to claim 1, characterized in that the outer side surface of the inner end of the drain cylinder (5) is abutted against the inner side surface of the drain passage (2 b), and the inner side surface of the drain passage (2 b) is in arc transition with the outer surface of the ball core (2) and forms a transition surface (2 b 2).

4. The filtering ball valve according to claim 1, wherein a groove (3 a) is arranged on the inner end surface of the blocking cap (3), the outer end of the pollution discharge cylinder (5) is inserted into the groove (3 a), the outer end surface of the pollution discharge cylinder (5) is abutted against the bottom surface of the groove (3 a), and the outer side surface of the outer end of the pollution discharge cylinder (5) is abutted against the side wall of the groove (3 a).

5. A filter ball valve according to any one of claims 1-4, characterized in that the indentations (4 b 1) are arranged in a plurality and circumferentially equidistant manner on the fixed part (4 b).

6. A filter ball valve according to any one of claims 1-4, characterized in that the net part (4 a) and the fixing part (4 b) are fixed and integrated by welding.