SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flow control valve to solve current flow control valve's the lower problem of structure complicacy, with high costs and reliability.
In order to solve the above technical problem, the present invention provides a flow control valve, comprising a valve body, a valve core sealing ring, a butterfly core and a driving assembly, wherein the valve body has a fluid passage and a valve core passage penetrating through the valve body, the valve core passage intersects with the fluid passage, the valve core sealing ring is disposed in the valve core passage for plugging the fluid passage, the valve core sealing ring has a valve core cavity and a first through hole and a second through hole penetrating through the valve core cavity, the first through hole and the second through hole are communicated with the fluid passage, the butterfly core is disposed in the valve core cavity, one end of the butterfly core penetrates out of the valve core sealing ring, the butterfly core has N butterfly core holes penetrating through the butterfly core, and N is greater than or equal to 1, when the butterfly core rotates to a set position in the valve core cavity, a single butterfly core hole is communicated with the first through hole and the second through hole, the driving component is used for driving one end of the butterfly core to rotate.
Optionally, the driving assembly comprises a handle inner sleeve and a handle, the handle inner sleeve is used for limiting the rotation of the butterfly core relative to the handle inner sleeve in the axial direction, and the handle is used for rotating the handle inner sleeve.
Optionally, the driving assembly further includes a handle positioning sleeve, the handle positioning sleeve has M positioning holes, and M is equal to N +1, the handle positioning sleeve is fixedly connected to the valve body, and the handle positioning sleeve is rotatably connected to the handle inner sleeve, the handle inner sleeve is provided with a first installation through hole penetrating through the handle inner sleeve along a direction perpendicular to an axial direction of the butterfly core, one end of the handle penetrates through the first installation through hole and is inserted into the positioning hole, wherein distribution of the positioning holes on a radial cross section of the butterfly core corresponds to distribution of the butterfly core holes on the radial cross section of the butterfly core.
Optionally, the number of the butterfly core holes is two, and the number of the positioning holes is three.
Optionally, the aperture sizes of the two butterfly core holes are different.
Optionally, the handle positioning sleeve includes a cylindrical portion, a first flange extending to an inner side of the cylindrical portion, and a second flange extending to an outer side of the cylindrical portion, the first flange contacts with an end of the valve core sealing ring, and the second flange is connected with the valve body screw.
Optionally, a positioning hole and an operation groove are formed in the circumferential wall surface of the columnar portion, and one end of the handle penetrates through the operation groove and the first mounting through hole of the handle inner sleeve and is inserted into the positioning hole.
Optionally, a threaded hole is formed in the handle inner sleeve, the driving assembly further comprises a set screw, a second mounting through hole is formed in one end of the butterfly core along the radial direction, a process hole is formed in the handle positioning sleeve, the set screw penetrates through the process hole and is in threaded connection with the threaded hole, and one end of the set screw is inserted into the second mounting through hole.
Optionally, the driving assembly further includes a spring disposed in the first mounting through hole, and the spring is configured to press one end of the handle against the positioning hole.
Optionally, the driving assembly further comprises an operating ball, and the operating ball is in threaded connection with the other end of the handle.
The utility model provides a pair of flow control valve has following beneficial effect:
because the valve body is provided with a fluid channel and a valve core channel which penetrate through the valve body, the valve core channel is intersected with the fluid channel, the valve core sealing ring is provided with a valve core cavity and a first through hole and a second through hole which penetrate through the valve core cavity, the first through hole and the second through hole are communicated with the fluid channel, the valve core sealing ring is arranged in the valve core channel and is used for plugging the fluid channel, the butterfly core is provided with N butterfly core holes which penetrate through the butterfly core, N is more than or equal to 1, the butterfly core is arranged in the valve core cavity, one end of the butterfly core penetrates through the valve core sealing ring, when the butterfly core rotates to a set position in the valve core cavity, a single butterfly core hole is communicated with the first through hole and the second through hole, the driving component is used for driving one end of the butterfly core to rotate, when fluid flows through the fluid channel, the butterfly core can be driven to rotate in the valve core cavity by the driving component, different butterfly core holes in the butterfly core are communicated with the first through hole and the second through hole, the butterfly core hole in the butterfly core is also not communicated with the first through hole and the second through hole, so that the flow regulating valve at least has two-gear flow regulating function, wherein one-gear butterfly core hole is not communicated with the first through hole and the second through hole and can be intercepted by the flow regulating valve, the other gear enables the butterfly core hole to be communicated with the first through hole and the second through hole, fluid with certain flow can flow into the first through hole from the fluid channel, flow through the second through hole after flowing through the butterfly core hole and then flow into the fluid channel through the second through hole, the flow can be regulated by the flow regulating valve, and thus the flow regulating valve can realize stepping regulation of the flow of the fluid, thereby accurately controlling the flow of the fluid flowing through the valve body. Because the flow control valve can realize the stepping control of flow only by arranging the valve body, the valve core sealing ring, the butterfly core and the driving component, the flow control valve has simple structure, low cost and high reliability.
Detailed Description
The flow control valve of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, fig. 1 is a schematic diagram of a three-dimensional structure of a flow control valve in an embodiment of the present invention, fig. 2 is a schematic diagram of an exploded structure of a flow control valve in an embodiment of the present invention, fig. 3 is a top view of a flow control valve in an embodiment of the present invention, fig. 4 is a cross-sectional view of the flow control valve along a-a line in fig. 3, fig. 5 is a schematic diagram of a partial structure of a flow control valve in an embodiment of the present invention, fig. 6 is a schematic diagram of a structure of a handle positioning sleeve in an embodiment of the present invention, and this embodiment provides a flow control valve, including a valve body 100, a valve core sealing ring 200, a butterfly core 300 and a driving assembly.
The valve body 100 has a fluid passage 110 and a spool passage 120 extending through the valve body 100, the spool passage 120 intersects the fluid passage 110, the spool seal ring 200 has a spool chamber and first and second through holes 210 and 220 penetrating the spool chamber, the first through hole 210 and the second through hole 220 are communicated with the fluid passage 110, the poppet seal 200 is disposed in the poppet passage 120, for blocking the fluid passage 110, the butterfly core 300 has N butterfly core holes 310 penetrating the butterfly core 300, and N is more than or equal to 1, the butterfly core 300 is arranged in the valve core cavity, one end of the butterfly core penetrates out of the valve core sealing ring 200, when the butterfly core 300 rotates to a set position in the valve core cavity, the single butterfly core hole 310 is communicated with the first through hole 210 and the second through hole 220, and the driving component is used for driving one end of the butterfly core 300 to rotate.
Because the valve body 100 is provided with the fluid channel 110 and the spool channel 120 penetrating through the valve body 100, the spool channel 120 intersects with the fluid channel 110, the spool seal ring 200 is provided with a spool cavity and a first through hole 210 and a second through hole 220 penetrating through the spool cavity, the first through hole 210 and the second through hole 220 are communicated with the fluid channel 110, the spool seal ring 200 is arranged in the spool channel 120 and is used for plugging the fluid channel 110, the butterfly core 300 is provided with N butterfly core holes 310 penetrating through the butterfly core 300, N is more than or equal to 1, the butterfly core 300 is arranged in the spool cavity, one end of the butterfly core 300 penetrates through the spool seal ring 200, when the butterfly core 300 rotates to a set position in the spool cavity, a single butterfly core hole 310 is communicated with the first through hole 210 and the second through hole 220, and the driving component is used for driving one end of the butterfly core 300 to rotate, therefore, when fluid flows through the fluid channel 110, the butterfly core 300 can be driven by the driving assembly to rotate in the valve core cavity, so that different butterfly core holes 310 on the butterfly core 300 are communicated with the first through hole 210 and the second through hole 220, or the butterfly core hole 310 on the butterfly core 300 is not communicated with the first through hole 210 and the second through hole 220, so that the flow regulating valve has at least two stages of flow regulating functions, wherein one stage of butterfly core hole 310 is not communicated with the first through hole 210 and the second through hole 220 and can be cut off by the flow regulating valve, the other stage of butterfly core hole 310 is communicated with the first through hole 210 and the second through hole 220, a certain flow of fluid can flow into the first through hole 210 from the fluid channel 110, flow through the second through hole 220 after flowing through the butterfly core hole 310 and then flow into the fluid channel 110 through the second through hole 220, the flow of fluid can be regulated by the flow regulating valve, so that the flow of fluid can be regulated by stepping through the flow regulating valve, thereby precisely controlling the flow of fluid through the valve body 100. Because the flow control valve can realize the stepping control of the flow only by arranging the valve body 100, the valve core sealing ring 200, the butterfly core 300 and the driving component, the flow control valve has simple structure, low cost and high reliability.
In this embodiment, the fluid passage 110 and the spool passage 120 are perpendicular to each other.
The driving assembly comprises a handle inner sleeve 400 and a handle 500, wherein the handle inner sleeve 400 is used for limiting the rotation of the butterfly core 300 relative to the handle inner sleeve 400 in the axial direction, the handle 500 is used for rotating the handle inner sleeve 400, and therefore the handle inner sleeve 400 can be rotated by rotating the handle 500, and the butterfly core 300 is further rotated.
The drive assembly further comprises a handle positioning sleeve 600, the handle positioning sleeve 600 has M positioning holes 640, and M is N +1, the handle positioning sleeve 600 is fixedly connected with the valve body 100, the handle positioning sleeve 600 is rotatably connected with the handle inner sleeve 400, the handle inner sleeve 400 is provided with a first mounting through hole 410 penetrating through the handle inner sleeve 400 along a direction perpendicular to the axial direction of the butterfly core 300, one end of the handle 500 is inserted into the positioning hole 640 through the first mounting through-hole 410, wherein, the distribution of the positioning holes 640 on the radial section of the butterfly core 300 corresponds to the distribution of the butterfly core holes 310 on the radial section of the butterfly core 300, that is, when one end of the handle 500 is inserted into one of the positioning holes 640, the corresponding butterfly hole 310 communicates with the first through hole 210 and the second through hole 220, or the corresponding butterfly hole 310 is not in communication with the first through-hole 210 and the second through-hole 220.
Preferably, an included angle between two adjacent positioning holes 640 is a first included angle, and correspondingly, an included angle between two adjacent butterfly core holes 310 is a second included angle, and the first included angle is equal to the second included angle.
Preferably, the diameters of the butterfly holes 310 are different, so that the flow regulating valve can realize the flow regulation of N +1 stages.
Referring to fig. 6, in the present embodiment, the butterfly core hole 310 is two, that is, N is 2, and the positioning hole 640 is three, that is, M is 3. The three positioning holes 640 correspond to a first gear, a second gear and a third gear respectively, when one end of the handle 500 is inserted into the positioning hole 640 corresponding to the first gear, the butterfly core hole 310 is not communicated with the first through hole 210 and the second through hole 220, when one end of the handle 500 is inserted into the positioning hole 640 corresponding to the second gear, one butterfly core hole 310 is communicated with the first through hole 210 and the second through hole 220, and when one end of the handle 500 is inserted into the positioning hole 640 corresponding to the third gear, the other butterfly core hole 310 is communicated with the first through hole 210 and the second through hole 220, so that three-gear throttling can be realized.
In this embodiment, the diameters of the two butterfly holes 310 are different, so that the flow rates of the fluids flowing through the butterfly 300 can be different when one of the three gears is adopted.
The handle retaining sleeve 600 also serves to secure the cartridge seal ring 200 within the cartridge passage 120.
Specifically, referring to fig. 4, the handle positioning sleeve 600 includes a column portion 610, a first flange 620 extending toward the inside of the column portion 610, and a second flange 630 extending toward the outside of the column portion 610, where the first flange 620 contacts with an end of the valve plug sealing ring 200, the second flange 630 is screwed to the valve body 100, and the valve plug sealing ring 200 is pressed in the valve plug passage 120 by fixedly connecting the second flange 630 to the valve body 100, so as to fix the valve plug sealing ring 200.
Referring to fig. 6, a positioning hole 640 and an operation groove 611 are formed on a circumferential wall surface of the column portion 610, and one end of the handle 500 is inserted into the positioning hole 640 through the operation groove 611 and the first mounting through hole 410 of the handle inner sleeve 400.
Referring to fig. 4, the valve core sealing ring 200 is a hollow column, the valve core sealing ring 200 has two shoulders, the valve body 100 has a step matched with the shoulders, the butterfly core 300 is a column, the butterfly core 300 has two shoulders, and a step matched with the shoulders is arranged in a valve core cavity of the valve core sealing ring 200, so that the valve core sealing ring 200 is conveniently fixed in the valve core channel 120 of the valve body 100 by the handle positioning sleeve 600, and the butterfly core 300 is conveniently restricted from moving axially, thereby improving the stability of the flow regulating valve.
The valve core sealing ring 200 is made of silica gel.
The end of the butterfly core 300 penetrating through the valve core cavity is prismatic, and the handle inner sleeve 400 is provided with a prismatic driving groove matched with one end of the butterfly core 300, so that the butterfly core 300 can be driven to rotate by the handle inner sleeve 400. In this embodiment, one end of the butterfly core 300 is quadrangular, and the driving groove is quadrangular.
Preferably, a threaded hole is formed in the handle inner sleeve 400, the driving assembly further includes a set screw 800, a second mounting through hole 320 is radially formed in one end of the butterfly core 300, a fabrication hole is formed in the circumferential wall surface of the columnar portion 610, the set screw 800 penetrates through the fabrication hole and is in threaded connection with the threaded hole, and one end of the set screw 800 is inserted into the second mounting through hole 320, so that the handle inner sleeve 400 is limited to move along the axis, and the stability of the flow regulating valve is further improved.
The driving assembly further includes a spring 700, the spring 700 is disposed in the first mounting through hole 410, and the spring 700 is used for pressing one end of the handle 500 into the positioning hole 640, so that the handle 500 is stably disposed in the positioning hole 640, and the position of the handle inner sleeve 400 is stable, and further the position of the butterfly core 300 is stable, so as to improve the stability of the flow regulating valve and facilitate the operation.
The driving assembly further includes an operating ball 510, and the operating ball 510 is screw-coupled to the other end of the handle 500, so that it is convenient to operate.
The flow regulating valve further comprises a silica gel sealing ring 900, and the silica gel sealing ring 900 is arranged in the fluid passage 110 and used for sealing connection of the valve body 100 and the pipeline.
During installation, the butterfly core 300 can be rotated to a predetermined position to communicate the butterfly core hole 310 with the first through hole 210 and the second through hole 220, and then the set screw is threaded with the threaded hole of the handle inner sleeve 400 through the corresponding positioning hole 640.
During the use, can take out handle 500 from locating hole 640 earlier, then insert handle 500 in advance will be inserted locating hole 640 in under the effect of spring 700 after rotating certain angle around the axial of butterfly core 300 to realize the regulation that flow control valve kept off the position, thereby realize the accurate control to the flow.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.