CN213628954U

CN213628954U - Iris aperture type reducing valve

Info

Publication number: CN213628954U
Application number: CN202022556165.0U
Authority: CN
Inventors: 陈永红; 石文太; 胡平; 罗雯晔; 左慧子; 郑依婷; 李忠英
Original assignee: Wuhan Yanling Intelligent Technology Co ltd
Current assignee: Wuhan Yanling Intelligent Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-06
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses an iris light ring formula reducing valve, including valve housing and the control panel of setting in the valve housing inner chamber, N fan blade and drive gear, valve housing includes chassis and end cover, the chassis main part be the ring form and be equipped with on its periphery with a body fashioned first arch, the end cover main part be the ring form and be equipped with on its periphery with a body fashioned second arch, the control panel is the ring form, control panel and chassis main part or end cover main part coaxial line, N fan blade sets up between chassis and control panel, the laminating of control panel and end cover internal surface compresses tightly, drive gear sets up between first arch and second arch and its and the gear structure on the control panel mesh mutually. The utility model has the advantages of, under outside drive arrangement's effect, the control panel makes every blade use the straight line groove to slide as the track synchronization with the cooperation of first convex key to progressively hide the hollow circle in the control panel and cover or expose, and then change the area that dams of pipeline.

Description

Iris aperture type reducing valve

Technical Field

The utility model relates to a valve equipment technical field especially relates to an iris light ring formula reducing valve.

Background

In order to control the flow rate of the pipeline flow, the following methods are mainly adopted: firstly, changing the pressure difference of pipeline flow, wherein the method is mainly realized by changing the output power of a pump, increasing a pressure reducing valve, a pressure increasing valve and the like; secondly, changing the sectional area of the pipeline flow, and mainly adopting a butterfly valve, a ball valve and the like; thirdly, the flow pressure difference and the sectional area of the pipeline are changed simultaneously, such as a throttle valve which is the comprehensive application of a pressure reducing valve, a butterfly valve and the like; and fourthly, the flow distribution or the flow collection is realized by distributing or collecting the pipeline flow, such as a flow distributing valve, a flow collecting valve and a flow distributing and collecting valve. However, the valves listed above have a single function in the pipeline flow, which limits their application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art current situation, provide an iris diaphragm type reducing valve, innovated the method that changes pipeline flow cross section area, its application range is extensive, can regard as the flow valve to use, also can change the pressure that the pipeline flows through changing the valve bore, and simultaneously, this valve still can realize carrying out the purpose of screening according to its size to circular object.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an iris diaphragm type reducing valve comprises a valve shell, a control panel, N blades and a driving gear, wherein the control panel, the N blades and the driving gear are arranged in an inner cavity of the valve shell;

the valve shell comprises a chassis and an end cover which have the same outline and are in aligned buckling connection, a chassis main body is in a circular ring shape, a first bulge which is formed integrally with the chassis main body is arranged on the outer circumference of the chassis main body, a connecting hole is formed in the first bulge, N non-penetrating straight line grooves are uniformly formed in the inner surface of the chassis main body along the circumferential direction of the chassis main body, a plurality of non-penetrating first screw holes are uniformly formed in the outer surface of the chassis main body around the circle center of the chassis main body, a second bulge which is formed integrally with the chassis main body is arranged in the outer circumference of the end cover main body, and a plurality of non-penetrating second;

the control panel is annular, N arc-shaped grooves are uniformly formed in the control panel along the circumferential direction, a gear structure is arranged on the whole circumference or the local circumference of the outer circular ring of the control panel, the width from the front end to the rear end of each blade is gradually increased, the front end of each blade is a sharp corner, the front ends of the N blades are continuously spliced around a fixed point to form a plane without a notch, the upper surface and the lower surface of each blade are respectively provided with a first convex key and a second convex key, the first convex key and the second convex key are both positioned at the end with the larger width of each blade, the first convex key is circular, the diameter of the first convex key is the same as the width of each arc-shaped groove, the second convex key is rectangular, the width of the second convex key is the same as the width of each linear groove, and the length of;

the control panel and the chassis main body or the end cover main body share the same axis, N vanes are arranged between the chassis and the control panel, a first convex key and a second convex key on each vane are respectively embedded into an arc-shaped groove arranged on the control panel and a linear groove arranged on the chassis, the control panel is tightly attached to the inner surface of the end cover, the driving gear is arranged between the first bulge and the second bulge and is meshed with the gear structure on the control panel, the control panel further comprises a driving connecting shaft, the driving connecting shaft penetrates through the connecting hole and is connected with the driving gear, the driving gear drives the control panel to rotate, the first convex key moves from one end of the arc-shaped groove to the other end, meanwhile, the second convex key slides to the other end along one end of the linear groove, and when the first convex key is positioned at one end of the arc-shaped groove close to the inner circumference of the control disc and the second convex key is positioned at one end of the linear groove close to the inner circumference of the chassis, the front ends of the N blades are continuously spliced around the center of the chassis or the end cover and completely cover the hollow circle in the control panel.

Furthermore, a plurality of third through holes are formed in the circumferential edge of the chassis main body and the first protrusion, a plurality of fourth non-through holes are formed in the circumferential edge of the end cover main body and the second protrusion, the third holes and the fourth holes are matched in a one-to-one correspondence mode, screws are screwed into the third through holes and the fourth through holes in pairs to lock the chassis and the end cover, and rubber pads are arranged between the chassis and the end cover.

Furthermore, the sum of the thickness of the blades and the thickness of the control disc is equal to the height of an inner cavity formed after the chassis and the end cover are completely assembled.

Further, the diameters of the hollow circle in the chassis, the hollow circle in the control disc and the hollow circle in the end cover are the same.

Furthermore, the front ends of the blades are isosceles triangles.

The utility model has the advantages that:

the utility model has the advantages of, under outside drive arrangement's effect, the control panel makes every blade use the straight line groove to slide as the track synchronization with the cooperation of first protruding key to progressively hide the hollow circle in the control panel and cover or expose, and then change the area that dams of pipeline, its application range is extensive, can regard as the flow valve to use, also can change the pressure that the pipeline flows through changing the valve bore, simultaneously, this valve still can realize carrying out the purpose of screening according to its size to circular object.

Drawings

Fig. 1 is a perspective view (completely closed state) of the variable diameter valve of the present invention;

fig. 2 is a perspective view (fully open state) of the variable diameter valve of the present invention;

FIG. 3 is a perspective view (without end cap) of the variable diameter valve of the present invention;

FIG. 4 is a perspective view (external surface view) of the chassis of the present invention;

FIG. 5 is a perspective view (inner surface view) of the chassis of the present invention;

fig. 6 is a perspective view (inner surface view) of the end cap of the present invention;

fig. 7 is a perspective view (external surface view) of the end cap of the present invention;

FIG. 8 is a perspective view of the control panel of the present invention;

fig. 9 is a perspective view (first key view) of the inventive blade;

fig. 10 is a perspective view (second key view) of the blade of the present invention.

Description of the labeling: 1. the base plate, 2, first arch, 3, connecting hole, 4, first screw, 5, connecting hole, 6, straight line groove, 7, blade, 8, first convex key, 9, second convex key, 10, control panel, 11, gear structure, 12, arc wall, 13, end cover, 14, second arch, 15, fourth screw, 16, second screw, 17, drive gear, 18, drive connecting axle.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-3, an iris diaphragm type variable diameter valve includes a valve housing, and a control disk 10, N blades 7 and a driving gear 17 disposed in an inner cavity of the valve housing, where the number of the blades 7 is shown as 9.

Referring to fig. 4-7, the valve housing includes a bottom plate 1 and an end cover 13 having the same outer contour and aligned and fastened together. The main body of the chassis 1 is annular, a first bulge 2 which is integrally formed with the main body is arranged on the outer circumference of the main body of the chassis 1, N non-penetrating linear grooves 6 are uniformly arranged on the inner surface of the main body of the chassis 1 along the circumferential direction of the main body, the number of the linear grooves 6 is 9, and a connecting hole 5 is arranged on the first bulge 2; the main body of the end cap 13 is circular and has a second protrusion 14 integrally formed with the outer circumference thereof.

The periphery of the main body of the chassis 1 and the first bulge 2 are provided with a plurality of penetrating third screw holes 3, the periphery of the main body of the end cover 13 and the second bulge 14 are provided with a plurality of non-penetrating fourth screw holes 15, the positions of the third screw holes 3 and the fourth screw holes 15 are matched in a one-to-one correspondence manner, the chassis 1 and the end cover 13 are locked by screwing screws into every two third screw holes 3 and every two fourth screw holes 15, and a rubber pad is arranged between the third screw holes 3 and the fourth screw holes 15, so that the chassis 1 and the end cover are connected in a buckled manner, and the joint has sealing.

Referring to fig. 8, the control panel 10 is circular, N arc-shaped slots 12 are uniformly formed on the control panel 10 along the circumferential direction, the number of the arc-shaped slots 12 is 9, and a gear structure 11 is disposed on the entire circumference or a part of the circumference of the outer circular ring of the control panel 10.

Referring to fig. 9-10, the width of the blade 7 gradually increases from the front end to the rear end, and the front end of the blade 7 is a sharp angle, preferably, the front end of the blade 7 is an isosceles triangle, and the front ends of the N blades 7 are continuously spliced around a fixed point to form a plane without a gap.

The upper surface and the lower surface of the blade 7 are respectively provided with a first convex key 8 and a second convex key 9, the first convex key 8 and the second convex key 9 are both positioned at the end with the larger width of the blade 7, the first convex key 8 is in a round shape, the diameter of the first convex key 8 is the same as the width of the arc-shaped groove 12, the second convex key 9 is in a rectangular shape, the width of the second convex key 9 is the same as the width of the linear groove 6, and the length of the second convex key 9 is smaller than the length of the linear groove 6.

Specifically, the structure after the iris diaphragm type reducing valve is assembled is as follows: the control panel 10 and the chassis 1 main part or the end cover 13 main part coaxial line, N fan blade 7 sets up between chassis 1 and control panel 10, and the first convex key 8 on every fan blade 7, second convex key 9 imbed respectively and set up in the arc wall 12 on the control panel 10 and the straight line groove 6 on the chassis, and

control panel

10 and 13 internal surface laminating of end cover compress tightly, and drive gear 17 sets up between first arch 2 and second arch 14 and its and the gear structure 11 on the control panel 10 mesh mutually.

In the above technical solution, the sum of the thickness of the blade 7 and the thickness of the control disk 10 is equal to the height of an inner cavity formed after the chassis 1 and the end cover 13 are completely assembled, so that the blade 7 and the control disk 10 cannot move in the axial direction of the chassis 1 body or the end cover 13 body.

In the above technical solution, the diameters of the hollow circle in the chassis 1, the hollow circle in the control disk 10, and the hollow circle in the end cover 13 are the same, and after the valve is opened, the formed fluid channel is cylindrical.

Referring to fig. 3, the present invention further includes a driving connection shaft 18, the driving connection shaft 18 is connected to the driving gear 17 after passing through the connection hole 5, the driving gear 17 drives the control panel 10 to rotate, so that the first convex key 8 moves from one end of the arc-shaped groove 12 to the other end while the second convex key 9 slides along one end of the linear groove 6 to the other end, and when the first convex key 8 is located at one end of the arc-shaped groove 12 close to the inner circumference of the control panel 10 and the second convex key 9 is located at one end of the linear groove 6 close to the inner circumference of the chassis 1, the front ends of the N vanes 7 are continuously spliced around the center of the chassis 1 or the end cover 13 and. In order to prevent the fluid from leaking, the gap between the connecting hole 5 and the drive connecting shaft 18 is made as small as possible and is sealed.

Referring to fig. 4, a plurality of non-penetrating first screw holes 4 are uniformly formed on the outer surface of the main body of the chassis 1 around the center of the circle, and the number of the first screw holes 4 is 5 in the figure. Referring to fig. 7, a plurality of non-penetrating second screw holes 16 are uniformly formed around the center of the circle on the outer surface of the main body of the end cap 13, and the number of the second screw holes 16 is 5 in the figure. When the valve is connected with a pipeline, the flange plates of the two sections of pipelines are respectively connected with the outer surface of the chassis 1 main body and the outer surface of the end cover 13 main body through screws. In order to prevent fluid leakage, rubber gaskets are required to be additionally arranged between the flange plates of the two sections of pipelines and the outer surface of the main body of the chassis 1 and the outer surface of the main body of the end cover 13 respectively.

Under the action of an external driving device (such as an electric driving mechanism, a hydraulic driving mechanism or a pneumatic driving mechanism and the like), the control disc 10 is matched with the first convex key 8 to enable each blade 7 to synchronously slide by taking the linear groove 6 as a track, so that a hollow circle in the control disc 10 is gradually covered or exposed, the intercepting area of a pipeline is further changed, the valve is wide in application range, can be used as a flow valve, can also change the pressure of pipeline flow by changing the caliber of the valve, and meanwhile, the valve can also achieve the purpose of screening round objects according to the size of the round objects.

In order to precisely control the valve opening, firstly, the relationship between the rotation angle of the control panel 10 and the valve opening is calculated according to the gear meshing principle, and then the relationship between the valve opening and the motion of the external driving device is obtained, so that the valve opening is precisely controlled.

Of course, the above is only the preferred embodiment of the present invention, and the application range of the present invention is not limited thereto, so all the equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An iris diaphragm type reducing valve is characterized in that: the valve comprises a valve shell, a control disc, N fan blades and a driving gear, wherein the control disc, the N fan blades and the driving gear are arranged in an inner cavity of the valve shell;

2. The iris diaphragm type variable diameter valve according to claim 1, wherein: the chassis is characterized in that a plurality of penetrating third screw holes are formed in the circumferential edge of the chassis main body and the first protrusion, a plurality of non-penetrating fourth screw holes are formed in the circumferential edge of the end cover main body and the second protrusion, the third screw holes and the fourth screw holes are matched in a one-to-one correspondence mode, the chassis and the end cover are locked by screwing screws into every two third screw holes and every two fourth screw holes, and a rubber pad is arranged between the chassis and the end cover.

3. The iris diaphragm type variable diameter valve according to claim 2, wherein: the sum of the thickness of the blades and the thickness of the control disc is equal to the height of an inner cavity formed after the chassis and the end cover are completely assembled.

4. The iris diaphragm type variable diameter valve according to claim 1, wherein: the diameters of the hollow circle in the chassis, the hollow circle in the control disc and the hollow circle in the end cover are the same.

5. The iris diaphragm type variable diameter valve according to claim 1, wherein: the front ends of the blades are isosceles triangles.