CN110701320A - Flow regulating stop valve for sanitation - Google Patents
Flow regulating stop valve for sanitation Download PDFInfo
- Publication number
- CN110701320A CN110701320A CN201810753393.1A CN201810753393A CN110701320A CN 110701320 A CN110701320 A CN 110701320A CN 201810753393 A CN201810753393 A CN 201810753393A CN 110701320 A CN110701320 A CN 110701320A
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- Prior art keywords
- valve
- cylinder
- valve body
- stem
- sanitary
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Abstract
The invention discloses a sanitary flow regulating stop valve which comprises a double cylinder, a valve body and a valve rod, wherein the valve body is combined with the double cylinder at the upper side, the valve rod is driven by the double cylinder and regulates the flow in the valve body, and the double cylinder, the valve body and a pipeline are combined through a fixing clamp (clamp). The sanitary stop valve of the present invention has advantages in that the number of parts can be reduced, and thus, the disassembly/assembly time required for washing and sterilization work can be reduced, and the size of the stop valve can be significantly reduced and the product price can be greatly reduced compared to the existing stop valve.
Description
Technical Field
The invention relates to a sanitary flow regulating stop valve, in particular to a sanitary flow regulating stop valve which comprises a double cylinder, a valve body and a valve rod, wherein the valve body is combined on the upper side of the double cylinder, and the valve rod is driven by the double cylinder and regulates the flow in the valve body.
Background
With the advancement of the industry, when a small amount of materials and raw materials are required to be put into the processes such as a sanitary medical manufacturing process and a food additive putting process, there is a limit in flow rate adjustment.
The ball valve and the sanitary butterfly valve commonly used in the existing sanitary pipeline can adjust the flow value within the opening and closing range of 45 degrees, but when the flow value exceeds 45-90 degrees, the flow path area for the fluid to pass is increased, and when the flow value exceeds 45 degrees, the flow rate is difficult to control, so that a sanitary valve capable of accurately adjusting the flow rate is needed.
Sanitary valves are sanitary process equipment, which refers to stainless steel valves, transportation machines, piping, etc. used in manufacturing and production equipment for food, pharmaceutical, and chemical industries, and refers to transportation equipment manufactured according to the required specifications of the industry.
Valves are devices for opening and closing a flow path for flowing or stopping a fluid, and are classified into ball valves, butterfly valves, and stop valves according to the opening and closing method (see fig. 1 below).
The food, pharmaceutical, and chemical industries are core processes that generally involve isolating, converting, and preventing mixing of liquid flows of gases, vapors, water, chemicals, and the like, which are raw materials for producing products, and therefore, a valve (see fig. 2 below) that can control the flow rate is required. In particular, the shutoff valve is different from a ball valve or a butterfly valve, and can be finely adjusted, and the shutoff valve has the highest use reliability in an industry requiring fine material input adjustment.
The basic structure of the existing shut-off valve comprises: the valve comprises a cylinder for driving the valve smoothly, a yoke for connecting the valve and the cylinder (actuator), a plug for directly opening and closing the material transfer, a driving force transmitting body (Stem) for moving the plug up and down by the force of the actuator, a valve Seat (Seat) for abutting and supporting the plug for sealing, a material transfer passage, and a valve body for resisting external impact.
However, the above-mentioned conventional shut-off valve uses about 20 kinds of parts, and has a complicated structure, requires a time of about 30 to 40 minutes for disassembly/assembly, and requires a time of about 30 to 40 minutes for reassembly after sterilization by a sterilizer, and a total time of 60 to 90 minutes, so that maintenance efficiency has a certain limit.
The vertical structure design (see fig. 3 below, processing in the direction of arrows 1, 2 and 3 before assembly) and the tight-fitting force design result required for polishing processing convenience, when the valve and the pipe are combined, the piping is of a two-layer structure, double space is required, and the area required by adopting a single-layer cylinder structure is twice as large as that required by adopting a double-cylinder structure when the same driving force is generated compared with a double-cylinder structure.
To solve the above problems, KR patent application No. 10-2007-Across 0074365 (title of the invention: flow control valve) discloses a flow control valve, which comprises: a passage for adjusting the flow rate of the fluid is provided between the inlet and the outlet, and a valve housing of a pipe portion is provided on the outer side of the passage; a valve head provided with a sliding part which blocks the flow of fluid and slides in a passage of the valve housing; the pipe part of the valve shell is inserted into the outer surface part of the lower part to be combined, an opening is formed at the upper side and the lower side, and an accommodating main body which is connected with the inner space of the openings at the two sides is formed; a rotating member inserted into the inner space through an upper opening of the accommodating body and having a spiral shape formed on an outer circumferential portion of a lower portion thereof; a moving member having a screw hole so that the outer circumference of the lower portion of the rotating member can be inserted into the upper portion to be screw-coupled, and the valve head is coupled to the lower end portion of the moving member by a coupling screw, and is prevented from rotating with respect to the inner wall of the lower portion of the accommodating body by the rotation of the rotating member and is slid up and down in the inner space; and a rotary handle coupled to an upper portion of the rotary member to facilitate rotation of the rotary member.
However, although the above patent document has an advantage of simplifying the structure of the shutoff valve, the valve body has a two-layer structure, and thus the above problem cannot be solved completely.
The present specification incorporates by reference a number of papers and patent documents which are described by reference. The disclosures of the cited articles and patent documents are hereby incorporated by reference in their entirety into the present specification to the extent that they are not inconsistent with the present invention as will be apparent from the state of the art to which this invention pertains and the contents of this invention.
Disclosure of Invention
Technical problem
The present inventors have made extensive studies to develop a sanitary shut-off valve which can reduce the number of parts of the shut-off valve and thus reduce the time required for washing and sterilization, can remarkably reduce the size of the shut-off valve compared to conventional shut-off valves, and can significantly reduce the product price, and as a result, have found that the shape of the internal piping of the valve body can be designed to be a straight line, the number of parts of the shut-off valve can be reduced to 4, and the problems can be completely solved when a double cylinder technology is applied to the cylinder structure, thereby completing the present invention.
It is therefore an object of the present invention to provide a sanitary flow regulating stop valve.
Other objects and advantages of the present invention will become more fully apparent from the following summary, appended claims and accompanying drawings.
Technical scheme
The invention provides a flow regulating valve.
As a result of diligent research by the present inventors to develop a sanitary shut-off valve that can reduce the number of parts of the shut-off valve and thus reduce the time required for washing and sterilization, can significantly reduce the size of the shut-off valve compared to conventional shut-off valves, and can significantly reduce the product price, the present invention has been accomplished by finding that the shape of the internal piping of the valve body can be designed to be a straight line, the number of parts of the shut-off valve can be reduced to 4, and the problems can all be solved when a double cylinder technology is applied to the cylinder structure.
An aspect of the present invention provides a sanitary flow rate regulating cut-off valve including a double cylinder, a valve body having an upper side combined with the double cylinder, and a valve rod driven by the double cylinder and regulating a flow rate inside the valve body, the double cylinder and the valve body and a pipe being combined with a clamp (clamp).
The term "clamp" in this specification refers to any tool for connecting, joining or twisting a plurality of objects to one another.
The term "slide" used in the present specification refers to all phenomenon in which a specific object slides by being in contact with other objects.
The term "valve seat" as used herein refers to a through-hole that is used in conjunction with a device that regulates the flow of fluid.
The term "sanitary flow control shutoff valve" used in the present specification refers to a shutoff valve in which a valve surface is polished (buffering) for use in the food, pharmaceutical, or chemical industries.
The term "polishing" as used in this specification refers to all actions of adjusting surface roughness using abrasives.
The combination of the double cylinder and the valve, and the valve body and the pipe by the fixing clip in the present invention is an extremely important structure. In the prior art, after the air cylinder is disassembled, more than 20 parts on the inner side of the valve body are disassembled in sequence, so that the time required for disassembling the product is long.
According to a preferred embodiment of the present invention, the double cylinder of the present invention preferably includes: a cylinder block on which a plurality of pistons slide; the head cover and the tail cover seal two ends of the cylinder body; a fixing plate for dividing the inner space of the cylinder body in the cylinder body between the head cover and the tail cover; a first piston slidably disposed in a space between the fixed plate and the head cover, i.e., a first cylinder, and a second piston slidably disposed in a space between the tail cover, i.e., a second cylinder; and a valve body combining part arranged on the lower side of the tail cover.
The valve of the present invention is an extremely important structure using a double cylinder. Since the dual cylinder requires an area of up to 0.5 times as large as that of a single cylinder for the same driving force to occur, the cylinder size can be significantly reduced.
According to a preferred embodiment of the present invention, the valve body of the present invention preferably has an inflow port and an outflow port formed at both sides thereof, a valve seat connecting the inflow port and the outflow port formed in the middle thereof, and a cylinder coupling portion formed around the valve seat to be coupled to the valve body coupling portion.
According to a preferred embodiment of the present invention, the valve stem of the present invention preferably includes: a plug in contact with the valve seat to regulate flow; and an upper member and a lower member that are coupled to the stopper to transmit the driving force of the first piston and the second piston to the stopper.
The valve stem of the present invention is constructed with the upper and lower parts as an extremely important structure. When the valve stem is composed of an upper part and a lower part, the disassembly time of the valve can be greatly shortened when the upper part and the lower part of the system are separated in the disassembly process for sterilizing the valve.
According to a preferred embodiment of the present invention, the upper and lower parts of the present invention are preferably combined such that the first piston and the second piston are combined by slidably combining up and down the first, second and third stem supports formed at the middle portions of the head cover, the tail cover and the fixing plate.
According to a preferred embodiment of the present invention, the valve body coupling portion and the cylinder coupling portion of the present invention are preferably coupled to each other to discharge the fluid flowing in from the inflow port to the outflow port through the valve seat.
In the present invention, it is very important that the valve body joint and the cylinder joint are combined to form the outlet discharge passage. Because the valve body and the lower side part of the valve rod of the valve needing sterilization can be easily separated along with the separation of the valve body combining part and the air cylinder combining part.
According to a preferred embodiment of the present invention, the fixing clip of the present invention preferably connects an inflow port provided at one side of the valve body and a pipe.
According to a preferred embodiment of the present invention, the fixing clip of the present invention preferably connects an outflow port provided at the other side of the valve body with a pipe.
According to a preferred embodiment of the present invention, the fixing clip of the present invention preferably connects the valve body joint portion and the cylinder joint portion.
According to a preferred embodiment of the present invention, the flow regulating shutoff valve of the present invention is preferably such that the double cylinder, the valve body and the plurality of pipes can be separated by separating all of the plurality of fixing clips.
According to another embodiment of the present invention, there is provided a flow regulating shutoff valve including: a double cylinder; the upper side is combined with the valve body of the double cylinder; and a valve rod driven by the double cylinder and adjusting the flow rate inside the valve body. The valve body forms a single-layer horizontal flow path.
The term "single-layer horizontal channel" as used herein means any channel in which a pair of channels are connected to each other by a connecting means so that the inlet/outlet of the channel and the center point of the channel are at the same height on the same line.
The term "on the same line" used in the present specification means that a plurality of objects are not only completely on the same line but also appear to be on the same line.
The valve body of the present invention is an extremely important structure for forming a single-layer horizontal flow path. When the valve body adopts a single-layer horizontal flow path structure, the size of the valve body can be reduced, other tools for manufacturing the sanitary valve body are not needed, and the pressure transmitted to the plug by the flow of the fluid is reduced, so that the size of the cylinder is reduced.
According to a preferred embodiment of the present invention, the single-layer horizontal flow path of the present invention is preferably configured by a first pipe having the inflow port formed at one end portion and the valve seat formed at the other upper portion, and a second pipe having an internal inflow port formed at one upper end portion and the outflow port formed at the other end portion.
According to a preferred embodiment of the invention, said first and second conduits of the invention are preferably provided on the same line.
According to a preferred embodiment of the present invention, the fluid flowing in through the inflow port of the first line of the present invention preferably flows out through the outflow port of the second line after being introduced into the internal inflow port of the second line through the valve seat and through the passage.
According to a preferred embodiment of the present invention, the reduction rate of the inner diameter of the first pipe line and the second pipe line based on the outer diameter thereof is preferably 15 to 25%.
In the present invention, it is very important that the inside diameter reduction rate based on the outside diameters of the first pipe and the second pipe is 15 to 25%. Because the inner diameter reduction rate ranges from 15 to 25%, the smallest dimension of the polishing tool, 1.5 inches (38.1mm), is easily accessible to the tool, eliminating the need to make additional tools for the polishing process.
According to still another embodiment of the present invention, there is provided a flow regulating shutoff valve including: a double cylinder; the upper side combines the valve body of double cylinder and passes through double cylinder drive and in the valve body inside adjust the valve rod of flow. The valve stem is composed of an upper part and a lower part.
According to a preferred embodiment of the invention, the upper and lower parts of the valve stem of the invention are preferably joined by a connecting portion comprising first and second connecting means, and thus can be selectively separated.
In the present invention, it is very important that the first connecting means and the second connecting means are connected by the connecting portion. In the prior art, after the air cylinder is disassembled, more than 20 parts such as the valve rod, the plug and the like on the inner side of the valve body need to be disassembled in sequence, so that the time required for disassembling the product is more, and the connecting part is removed, so that the valve rod is easily disassembled from the valve body.
According to a preferred embodiment of the present invention, the upper side part of the present invention preferably includes a first valve stem having one side forming the first connecting means, and the lower side part preferably includes a second valve stem having one side forming the second connecting means and the other end forming or incorporating a plug, the first valve stem and the second valve stem preferably being combined by the first connecting means and the second connecting means.
According to a preferred embodiment of the present invention, a packing is preferably provided between the first stem and the second stem support portion of the present invention, thereby preventing the fluid of the passage from being introduced into the second cylinder.
According to a preferred embodiment of the present invention, the flow control/shutoff valve of the present invention is preferably configured such that the valve body and the second system are sterilized after being separated into the double cylinder, the valve body, the plurality of pipes coupled to the valve body, and the second system.
According to still another embodiment of the present invention, the sanitary flow regulating cut-off valve of the present invention comprises: a dual cylinder, comprising: a cylinder body with a plurality of sliding pistons, a head cover and a tail cover which seal two ends of the cylinder body, a fixed plate which divides the inner space of the cylinder body in the cylinder body between the head cover and the tail cover, a first piston which is arranged in a first cylinder in a sliding way and is the space between the fixed plate and the head cover, a second piston which is arranged in a second cylinder in a sliding way and is the space between the fixed plate and the tail cover, and a valve body combining part which is arranged at the lower side of the tail cover; a valve body having an inlet and an outlet on both sides thereof, a valve seat connecting the inlet and the outlet, and a cylinder coupling portion formed around the valve seat and coupled to the valve body coupling portion; a valve rod which is composed of a plug which is contacted with the valve seat to adjust the flow rate and an upper part and a lower part which are combined with the plug to transmit the driving force of the first piston and the second piston to the plug; the upper and lower parts are combined with the first and second pistons by vertically slidably combining with a first, second and third stem support part formed at the middle parts of the head cover, the tail cover and the fixing plate; the valve body combining part and the cylinder combining part are combined with each other to form a channel for discharging the fluid flowing in through the inflow port to the outflow port through the valve seat; the dual cylinder and the valve body and the pipe are combined by a clamp (clamp); the valve body forms a single-layer horizontal flow path; the valve stem is composed of an upper part and a lower part.
Advantageous effects
The invention has the following beneficial effects:
(a) the invention provides a sanitary flow regulating stop valve, comprising: the double-cylinder valve comprises a double-cylinder, a valve body with the upper side combined with the double-cylinder and a valve rod which is driven by the double-cylinder and adjusts the flow inside the valve body. The dual cylinder and the valve body and the pipe are combined by a clamp (clamp).
(b) The invention relates to a sanitary stop valve, which reduces the number of parts and further reduces the disassembly/assembly time required by washing and sterilization operations.
Drawings
FIG. 1 shows the valve types of the respective opening and closing modes;
FIG. 2 is a diagram showing the differences between a typical industrial valve and a sanitary valve;
FIG. 3 is a view showing a conventional shutoff valve using a double-layered vertical flow path space;
FIG. 4 is a sectional view showing a sanitary flow regulating stop valve of the present invention;
fig. 5 is a sectional view showing a valve body included in the sanitary flow rate regulation shut-off valve of the present invention;
FIG. 6 is an exploded view showing a valve stem included in the sanitary flow regulating stop valve of the present invention;
FIG. 7 is a view showing an exploded process of the sanitary flow control cut-off valve of the present invention;
fig. 8 is a sectional view showing a double cylinder included in the sanitary flow rate adjustment shut-off valve of the present invention;
fig. 9 is a view showing an operation state of a double cylinder included in the sanitary flow rate adjustment shut-off valve of the present invention.
[ notation ] to show
A sanitary flow control stop valve 100; a double cylinder 10;
a cylinder 11; a head cover 12;
a first stem support portion 121; a tail cap 13;
a second stem support 131; a sealing packing 132;
a fixed plate 14; a third valve rod support 141;
a first cylinder 15; a first piston 16;
a second cylinder 17; a second piston 18;
a valve body coupling portion 19; a valve body 20;
a first pipe 21; an inflow port 22;
a valve seat 23; a second conduit 24;
an internal flow inlet 25; an outflow port 26;
a cylinder joint 27; a channel 30;
a valve stem 40; an upper side part 41;
a first valve stem 411; a first connecting means 412;
a lower part 42; a second valve stem 421;
a second connecting means 422; a plug 423;
a connecting portion 43; a retaining clip 50.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings in which embodiments of the invention are shown, but the described embodiments are only a part and not all of the embodiments of the invention. Based on the embodiments of the present invention, those skilled in the art may still modify the technical solutions described in the foregoing embodiments, or may equivalently replace some of the technical features in the foregoing embodiments; and such modifications and substitutions still fall within the technical scope of the present invention. In describing the present invention, a detailed description of a related known technique will be omitted if it makes the gist of the present invention unclear.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 5 illustrates a sectional view of the sanitary flow rate adjustment shut-off valve 100 according to an embodiment of the present invention.
Referring to fig. 4, a sanitary flow-regulating shutoff valve 100 according to an embodiment of the present invention includes: a dual cylinder 10 including a cylinder block 11, a head cover 12, a first stem supporting part 121, a tail cover 13, a second stem supporting part 131, a packing 132, a fixing plate 14, a third stem supporting part 141, a first cylinder 15, a first piston 16, a second cylinder 17, a second piston 18, and a valve body coupling part 19; a valve body 20 including a first pipe 21, an inflow port 22, a valve seat 23, a second pipe 24, an internal inflow port 25, an outflow port 26, and a cylinder joint 27; a valve stem 40 comprising a channel 32, an upper part 41, a first valve stem 411, a first connecting means 142, a lower part 42, a second valve stem 421, a second connecting means 422, a plug 423 and a connecting portion 43, and a retaining clip 50.
The dual cylinder 10 of one embodiment of the present invention includes: the cylinder block 11, the head cover 12, the first stem support 121, the tail cover 13, the second stem support 131, the packing 132, the fixing plate 14, the third stem support 141, the first cylinder 15, the first piston 16, the second cylinder 17, the second piston 18, and the valve body coupling portion 19.
The cylinder block 11 may be made of metal or synthetic resin, and a piston is slidably mounted on the inner cylinder to transmit a driving force generated according to the reciprocating motion of the piston to the valve rod 40.
The head cover 12 may be made of metal or synthetic resin, and seals the upper end of the cylinder block 11.
The head cap 12 is provided at an intermediate portion thereof with a first stem supporting portion 121, and an upper part 41 of the stem 40 is slidably coupled. A packing (not shown) is provided between the first stem support portion 121 and the upper member 41 of the stem 40 to prevent gas leakage in the cylinder.
The tail cap 13 is made of metal or synthetic resin, and seals the lower end of the cylinder block 11.
The middle portion of the tail cap 13 is provided with a second stem support portion 131, and the upper side part 41 of the stem 40 is slidably coupled. A packing 132 is interposed between the second stem support 131 and the upper member 41 of the stem 40 to prevent gas leakage from the cylinder.
The fixed plate 14, which may be made of metal or synthetic resin, is provided at an intermediate portion inside the cylinder block 11 to divide the inside of the cylinder block 11 into a first cylinder 15 and a second cylinder 17.
The fixing plate 14 is provided at an intermediate portion thereof with a third stem supporting portion 141, and the stem 40 and the upper member 41 are slidably coupled. A packing (not shown) is provided between the third stem support 141 and the upper member 41 of the stem 40 to prevent gas leakage from the inside of the cylinder.
The first cylinder 15 may be made of metal or synthetic resin, and is a portion of the cylinder block 11 whose inner space is divided by the head cover 12 and the fixed plate 14, and the first piston 16 is slidably installed.
The first piston 16 is made of metal or synthetic resin, is mounted on the first cylinder 15, and transmits a driving force generated by the reciprocating motion of the piston to the upper member 41 of the valve stem 40.
The second cylinder 17 is made of metal or synthetic resin, and is a portion of the cylinder block 11 whose inner space is divided by the fixed plate 14 and the tail cap 13, and the second piston 18 is slidably disposed.
The second piston 18 is made of metal or synthetic resin, is mounted on the first cylinder 15, and transmits a driving force generated by the reciprocating motion of the piston to the upper member 41 of the valve stem 40.
The valve body coupling portion 19 provided at the lower portion of the cylinder block 11 is made of metal or synthetic resin, and is coupled to the cylinder coupling portion 27 provided at the upper side of the valve body 20 to form a passage 30, which will be described later.
A fourth stem support portion (not shown) is provided at an intermediate portion of the valve body coupling portion 19, and the lower member 42 of the stem 40 is slidably coupled thereto. A packing (not shown) is provided between the fourth stem support portion and the lower member 42 of the stem 40 to prevent the fluid in the passage 30 from leaking to the outside.
The valve body 20 of an embodiment of the present invention includes a first pipe 21, an inflow port 22, a valve seat 23, a second pipe 24, an internal inflow port 25, an outflow port 26, a cylinder joint 29, and a passage 30.
One side of the valve body 20 is provided with a first pipeline 21 with one side end part comprising an inflow port 22.
Provided at an upper side of the middle portion of the valve body 20, and adjusts the amount of fluid flowing inside the valve body 20 in conjunction with the plug 423. The valve body 20 is formed to be extended at the other upper portion of the first pipe 21.
The valve body 20 is provided at the other side with a second pipe 24 having an inner inflow port 25 at one side end and an outflow port 26 at the other side end.
The fluid flowing in through the inlet port 22 flows into the passage 30 through the valve body 20, and is then discharged to the outside of the valve body 20 through the internal inlet port 25 and the outlet port 26 of the second pipe 24.
The valve body 20 is provided at the periphery thereof with a cylinder joint 27, and the cylinder joint 27 is joined to the valve body joint 19 to form a passage 30 connecting the first and second pipes 21 and 24.
The valve stem 40 of an embodiment of the present invention includes an upper member 41, a first valve stem 411, a first coupling means 412, a lower member 42, a second valve stem 421, a second coupling means 422, a plug 423, and a coupling portion 43.
The upper member 41 includes a first stem 411 having a first connecting means 412 at one end thereof, and the lower member 42 is a second stem 421 having a second connecting means 422 at one end thereof and a plug 423 at the other end thereof.
The first connecting means 412 and the second connecting means 422 are combined to form a connecting portion 43.
In the fixing clip 50 according to an embodiment of the present invention, the inflow port 22 and the duct provided on the valve body 20 side, the outflow port 26 and the duct provided on the valve body 20 side, and the cylinder coupling portion 27 and the valve body coupling portion 19 are coupled.
Fig. 5 is a reference diagram illustrating the flow of fluid flowing on the valve body 20 included in the sanitary flow rate regulation shutoff valve 11 according to an embodiment of the present invention.
According to fig. 5, the valve body 20 included in the sanitary flow rate regulation shutoff valve 100 according to the embodiment of the present invention is such that the first pipe 21 and the second pipe 24 form a single-layer horizontal flow path.
The single-layer horizontal flow path is formed at a height where the inflow port of the first pipe 21, the outflow port 26 of the second pipe 24, and the center points of the plurality of pipes of the valve body 20, to which the first pipe 21 and the second pipe 24 are connected by the passage 30 as the connecting means, are on the same dotted line.
The reduction rate of the inner diameter based on the outer diameters of the first and second conduits 21 and 24 is 15 to 25%.
The inner diameter reduction ratio ranges from 15 to 25%, the minimum size of the polishing tool, i.e., 1.5 inch (38.1mm) tool, is easy to handle, and no other tools need to be made for polishing.
An exploded view of the valve stem 40 included in the sanitary flow rate regulation shutoff valve 100 according to an embodiment of the present invention is illustrated in fig. 6.
According to fig. 6, the valve stem 40 included in the sanitary flow rate adjustment shutoff valve 100 according to the embodiment of the present invention is such that the upper side part 41 and the lower side part 42 can be separated by separation of the connecting portion 43.
Fig. 7 is a reference diagram illustrating an exploded process of the sanitary flow rate regulation cutoff valve 100 according to an embodiment of the present invention.
Referring to fig. 7, the sanitary flow control/shutoff valve 100 according to the embodiment of the present invention is completely disassembled by disassembling the inlet port 22 and the duct formed on the valve body 20 side, the outlet port 26 and the duct formed on the valve body 20 side, and the cylinder coupling portion 27 and the valve body coupling portion 19, and then disassembling the upper member 41 and the lower member 42 of the valve stem 40.
Fig. 8 and 9 are a sectional view illustrating the double cylinder 10 included in the sanitary flow rate regulation shut-off valve 100 according to an embodiment of the present invention and a reference drawing showing an operation process.
Referring to fig. 8 and 9, the double cylinder 10 included in the sanitary flow rate adjusting shut-off valve 100 according to an embodiment of the present invention is operated by air (air) pressure, which is introduced into the cylinder through an air injection port formed at a side of the valve stem 40 to move the piston.
When the plurality of pistons 16, 18 move toward the head cap 12, an air inlet (not shown) for advancing the pistons is opened, and the pistons advance by air introduced into the plurality of cylinders 15, 17. At this time, an air inlet port (not shown) for retracting the piston is closed by the plurality of pistons 16 and 18.
When the pistons 16 and 18 move toward the tail cap 13, an air inlet (not shown) for retracting the pistons is opened, and the pistons retract by air introduced into the cylinders 15 and 17. At this time, an air inlet (not shown) for advancing the piston is closed by the plurality of pistons 16 and 18.
Claims (10)
1. A sanitary flow regulating stop valve, which is characterized in that,
a dual cylinder, comprising: a cylinder body with a plurality of sliding pistons, a head cover and a tail cover which seal two ends of the cylinder body, a fixed plate which divides the inner space of the cylinder body in the cylinder body between the head cover and the tail cover, a first piston which is arranged in a first cylinder between the fixed plate and the head cover in a sliding way, a second piston which is arranged in a second cylinder between the fixed plate and the tail cover in a sliding way, and a valve body combining part which is arranged at the lower side of the tail cover;
a valve body having an inlet and an outlet on both sides thereof, a valve seat connecting the inlet and the outlet, and a cylinder coupling portion formed around the valve seat and coupled to the valve body coupling portion;
a valve rod which is composed of a plug which is contacted with the valve seat to adjust the flow rate and an upper part and a lower part which are combined with the plug to transmit the driving force of the first piston and the second piston to the plug;
the upper and lower parts are combined with the first and second pistons by vertically slidably combining with a first, second and third stem support part formed at the middle parts of the head cover, the tail cover and the fixing plate;
the valve body combining part and the cylinder combining part are combined with each other to form a passage for discharging fluid flowing in through the inflow port to the outflow port through the valve seat;
the double cylinder and the valve body and the pipeline are combined by a fixing clamp;
the valve body forms a single-layer horizontal flow path;
the valve stem is composed of an upper part and a lower part.
2. Sanitary flow regulating shut-off valve according to claim 1,
the fixing clamp is used for connecting the inflow port and the pipeline which are arranged on one side of the valve body, the outflow port and the pipeline which are arranged on the other side of the valve body, and the valve body combining part and the cylinder combining part.
3. Sanitary flow regulating shut-off valve according to claim 2,
the flow rate control shut-off valve separates all of the plurality of fixing clips and separates the double cylinder, the valve body, and the plurality of pipes.
4. Sanitary flow regulating shut-off valve according to claim 1,
the single-layer horizontal flow path is composed of a first pipe with the inflow port formed at one end and the valve seat formed at the other upper part, and a second pipe with the internal inflow port formed at one upper end and the outflow port formed at the other end.
5. Sanitary flow regulating shut-off valve according to claim 4,
the first pipeline and the second pipeline are arranged on the same line.
6. Sanitary flow regulating shut-off valve according to claim 5,
fluid flowing in through the inlet port of the first tube passes through the valve seat and is introduced into the internal inlet port of the second tube through the passage, and then flows out through the outlet port of the second tube.
7. Sanitary flow regulating shut-off valve according to claim 6,
the reduction rate of the inner diameter of the first pipe and the second pipe is 15 to 25% based on the outer diameter of the first pipe and the second pipe.
8. Sanitary flow regulating shut-off valve according to claim 1,
the upper part and the lower part of the valve rod are combined through a connecting part comprising a first connecting device and a second connecting device, and then can be selectively separated.
9. Sanitary flow regulating shut-off valve according to claim 8,
the upper side part includes a first stem having one end on which the first coupling means is formed, and the lower side part includes a second stem having one end on which the second coupling means is formed and the other end on which a plug is formed or coupled, the first stem and the second stem being coupled by the first coupling means and the second coupling means.
10. Sanitary flow regulating shut-off valve according to claim 9,
a packing seal is provided between the first stem and the second stem support portion to prevent fluid of the passage from being introduced into the second cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753393.1A CN110701320A (en) | 2018-07-10 | 2018-07-10 | Flow regulating stop valve for sanitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753393.1A CN110701320A (en) | 2018-07-10 | 2018-07-10 | Flow regulating stop valve for sanitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110701320A true CN110701320A (en) | 2020-01-17 |
Family
ID=69192470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810753393.1A Withdrawn CN110701320A (en) | 2018-07-10 | 2018-07-10 | Flow regulating stop valve for sanitation |
Country Status (1)
| Country | Link |
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| CN (1) | CN110701320A (en) |
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Application publication date: 20200117 |