CN113280133A

CN113280133A - High barrier propterty butterfly valve

Info

Publication number: CN113280133A
Application number: CN202110833729.7A
Authority: CN
Inventors: 斯武君; 尹彤
Original assignee: Ningbo Valve Manufacturing Co ltd; Shandong Taiheng Intelligent Environmental Technology Co ltd
Current assignee: Ningbo Yiji Valve Manufacturing Co., Ltd; Shandong Taiheng Intelligent Environmental Technology Co.,Ltd.
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-08-20
Anticipated expiration: 2041-07-23
Also published as: CN113280133B

Abstract

The invention discloses a butterfly valve with high protection performance, which belongs to the technical field of valves and comprises a valve body and a protection assembly, wherein a liquid passing channel for fluid to pass through is arranged in the valve body, a valve plate capable of sealing the liquid passing channel is arranged in the liquid passing channel, a control handle for controlling the valve plate to rotate is arranged on the valve body, the protection assembly is arranged on the valve plate and comprises a protection box, a pressing piece and a protection plate, the protection plate is obliquely arranged and is in sliding fit with the protection box, the pressing piece is arranged in the protection box, and the pressing piece is in abutting fit with the protection plate. According to the invention, the protection plate extends to the front of the side wall of the valve plate, and metal objects or sharp objects which may impact the side wall of the valve plate are blocked by the protection plate, so that the situation that the valve body cannot be sealed due to the damage of the side wall of the valve plate by the metal objects or the sharp objects is avoided.

Description

High barrier propterty butterfly valve

Technical Field

The invention relates to the field of valves, in particular to a butterfly valve with high protection performance.

Background

The industrial valve is an important accessory for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil, liquid metal, radioactive media and the like on an industrial pipeline, is also called a flap valve, is a regulating valve with a simple structure, and can be used for switching control of low-pressure pipeline media, the butterfly valve adopts structural ceramics as a sealing pair, has excellent corrosion resistance, high temperature resistance, wear resistance and erosion resistance, can completely replace the whole butterfly valve made of precious metal, greatly improves the condition that the sealing pair of the butterfly valve is easy to damage under severe working conditions and the service life of the butterfly valve cannot meet the requirement of a system maintenance period, the existing ceramic butterfly valve is often provided with only one layer of valve plate, the ceramic valve plate has high brittleness and is easy to damage due to impact, and the ceramic butterfly valve plate is referred to a ceramic butterfly valve in patent No. CN210318554U, including the valve body, the inside of valve body is formed with the inside passage, the feed end fixed mounting of inside passage has the disk seat, the inside of valve body is provided with the dwang, the top and the low side of dwang run through the top and the bottom of valve body respectively and extend to the outside of valve body, the week side of dwang just is located the inside of valve body and passes through linking arm fixed mounting and disk seat complex valve plate, one side horizontal sliding connection that the dwang was kept away from to the valve plate has first semicircle board and second semicircle board, the gap of valve plate both sides is plugged up to the sealing ring of first plectane and second plectane both sides, guarantee the leakproofness, the effect of protection valve plate has also been played the valve plate to the valve plate, prevent that solid in the industrial fluid from damaging the valve plate striking.

Although can protect the valve plate through first semicircle board and second semicircle board among the above-mentioned device, but following problem still exists, first semicircle board and second semicircle board can just protect the valve plate when the valve plate is the level form, fluid in the pipeline can't pass through the valve plate when the valve plate is the level form, metal or sharp object in the fluid can't direct impact cause the damage to the valve plate on the valve plate, metal or sharp object in the fluid impact make also can't cause the damage to the valve body through fluidic buffering on the valve plate, on the contrary when the valve body is vertical form, fluid flows through the valve plate fast, at this moment if metal or sharp object in the fluid and valve body impact, lead to the valve body lateral wall to damage easily and can't guarantee the leakproofness.

Disclosure of Invention

The invention aims to provide a butterfly valve with high protection performance, which aims to solve the technical problem that the side wall of a valve plate is easy to damage due to impact and poor in sealing performance in the prior art.

The invention provides a butterfly valve with high protection performance, which comprises a valve body and a protection assembly, wherein a liquid passing channel for fluid to pass through is arranged in the valve body, a valve plate capable of sealing the liquid passing channel is arranged in the liquid passing channel, a control handle for controlling the valve plate to rotate is arranged on the valve body, the protection assembly is arranged on the valve plate and comprises a protection box, a pressing piece and a protection plate, the protection plate is obliquely arranged, the protection plate is in sliding fit with the protection box, the pressing piece is arranged in the protection box, and the pressing piece is in abutting fit with the protection plate.

Furthermore, protection box semicircular in shape sets up and protection box installs on the lateral wall of valve body, the play board hole that supplies the guard plate to pass through is seted up to protection box semicircular in shape one side, the liquid through hole that a plurality of supplied fluid to pass through is seted up to protection box's opposite side, and a plurality of liquid through hole is along a sharp equidistant setting.

Further, the outside of guard plate can pass out the diaphragm orifice and extend outside the protection box, the inboard of guard plate is arranged in the protection box and is equipped with a plurality of connecting plate on this inboard, and a plurality of connecting plate all is equipped with the tension spring that the slope set up along the equidistant setting of circumference of protection box on every connecting plate.

Furthermore, be equipped with down the plywood in the protection box, down close the board and be located the below of a plurality of connecting plate and close board and guard plate fixed connection down, be equipped with first inclined plane on the plywood down.

Further, the pressing piece includes the last plywood and fixes the slip rack on last plywood that the board contradicts under with, be equipped with the second inclined plane of laminating mutually with first inclined plane on the last plywood, the slip rack overlap joint is equipped with the spout in the protection box and on the lateral wall of slip rack, it is equipped with the locating plate of L type to correspond the spout in the protection box, the side of slip rack is equipped with and installs on the protection box rather than the toggle gear and the toggle gear that mesh can the pivoted, and the side of toggle gear is equipped with hydraulic pressure spare and water pressure spare and toggle gear transmission cooperation.

Further, the water pressure spare includes resistance board, restriction board and reset spring, resistance board and restriction board interval set up and reset spring's both ends respectively with resistance board and restriction board fixed connection, restriction board and protection box fixed connection, both sides on the restriction board are equipped with deflector and driving plate respectively, deflector and driving plate all with resistance board fixed connection, driving plate with stir gear drive cooperation and be equipped with on the driving plate with stir gear engaged with tooth's socket.

Furthermore, the protection box is provided with a square hole for the resistance plate to slide, the square hole is provided with a protection box, and the protection box is provided with a filter screen.

Compared with the prior art, the invention has the beneficial effects that:

one of them, install protection component on the valve plate, the rotation control handle makes the valve plate be vertical form, the fluid passes through the liquid passageway fast, fluid exerts pressure to the resistance board after passing through the filter screen, make resistance board and driving plate remove to the limiting plate direction simultaneously, the driving plate drives the rotatory messenger of striking gear through the tooth's socket and slides the plywood and drive plywood down to plywood direction removal, it makes the one end of guard plate pass out the board hole and extend to the dead ahead of valve plate lateral wall through the laminating of second inclined plane and the first inclined plane on the plywood down to go up the plywood, metal object or sharp thing that will probably strike the valve plate lateral wall through the guard plate block, in order to avoid metal object or sharp thing to damage the valve plate lateral wall and lead to the unable sealing of valve body.

And the filter screen arranged on the protective box is used for filtering metal objects or sharp objects in the fluid so as to prevent the metal objects or sharp objects in the fluid from impacting the resistance plate to cause the damage or bending of the resistance plate.

Its third, set up the tension spring on every connecting plate for the connecting plate provides the pulling force all the time when the valve plate is at the level form, avoids the guard plate to contradict through play diaphragm orifice and valve body inner wall, blocks the valve plate when leading to needs rotary valve plate and leads to passing the unable liquid of liquid passageway.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a partial perspective view of the present invention;

FIG. 4 is a partial cross-sectional view of the present invention;

FIG. 5 is a partial perspective view of a first embodiment of a shield assembly of the present invention;

FIG. 6 is a partial perspective view of a second embodiment of the shielding assembly of the present invention;

FIG. 7 is a perspective view of the shield assembly of the present invention;

fig. 8 is a partially disassembled schematic view of the shield assembly of the present invention.

Reference numerals: 1. a valve body; 2. a guard assembly; 21. a protective case; 211. a liquid through hole; 212. a lower plywood; 213. a first inclined plane; 214. a protection box; 215. a filter screen; 22. a pressing member; 221. a plywood is arranged; 222. a sliding rack; 223. a second inclined plane; 224. shifting a gear; 23. a protection plate; 231. a connecting plate; 232. a tension spring; 3. a valve plate; 4. a control handle; 5. a water pressing part; 51. a resistance plate; 52. a limiting plate; 53. a return spring; 54. a guide plate; 55. a drive plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the invention provides a butterfly valve with high protection performance, which includes a valve body 1 and a protection assembly 2, a liquid passing passage for fluid to pass through is formed in the valve body 1, a valve plate 3 capable of sealing the liquid passing passage is formed in the liquid passing passage, a control handle 4 for controlling the rotation of the valve plate 3 is arranged on the valve body 1, the protection assembly 2 is installed on the valve plate 3, the protection assembly 2 includes a protection box 21, a pressing piece 22 and a protection plate 23, the protection plate 23 is obliquely arranged, the protection plate 23 is in sliding fit with the protection box 21, the pressing piece 22 is placed in the protection box 21, the pressing piece 22 is in interference fit with the protection plate 23, and when the valve plate 3 needs to be closed, the control handle 4 is rotated at a constant speed to slowly seal the liquid passing passage.

Specifically, protection box 21 semicircular in shape sets up and protection box 21 installs on the lateral wall of valve body 1, the play board hole that supplies protection plate 23 to pass through is seted up to protection box 21 semicircular in shape one side, the liquid through hole 211 that a plurality of supplied fluid to pass through is seted up to protection box 21's opposite side, and a plurality of liquid through hole 211 sets up along a straight line equidistant, and protection box 21 protects valve plate 3 when valve plate 3 is the level form, and liquid through hole 211 that sets up on protection box 21 is used for avoiding the fluid to collect in protection box 21, leads to the rotten production bacterium of liquid.

Specifically, the outer side of the protection plate 23 can penetrate through the plate outlet hole and extend out of the protection box 21, the inner side of the protection plate 23 is arranged in the protection box 21, the plurality of connection plates 231 are arranged on the inner side of the protection box 21 at equal intervals along the circumferential direction of the protection box 21, each connection plate 231 is provided with a tension spring 232 which is obliquely arranged, when the valve plate 3 is in a horizontal shape, the tension spring 232 arranged on each connection plate 231 always provides tension for the connection plate 231, the protection plate 23 is prevented from abutting against the inner wall of the valve body 1 through the plate outlet hole, the valve plate 3 is clamped to prevent the liquid passing channel from passing liquid when the protection plate 3 needs to be rotated, when the protection plate 23 extends to the front side wall of the valve plate 3, the side wall of the valve plate 3 can be completely shielded, when the protection plate 23 extends to the front side wall of the valve plate 3, the arrow direction in fig. 4 is the water flow direction, an included angle a formed by the protection plate 23 and the water flow direction in fig. 4 is at least larger than 60 degrees, when water flow impacts the protection plate 23, the inner side of the protection plate 23 is abutted to the protection box 21, so that friction force is increased, and the protection plate 23 can be prevented from sliding into the protection box 21 along the plate outlet direction.

Specifically, be equipped with lower plywood 212 in the protection box 21, lower plywood 212 is located the below of a plurality of connecting plate 231 and lower plywood 212 and protection plate 23 fixed connection, be equipped with first inclined plane 213 on the lower plywood 212, lower plywood 212 can be transferred protection plate 23 outside protection box 21 through going out the board hole through the cooperation with pressing piece 22.

Specifically, the pressing member 22 includes an upper engaging plate 221 abutting against the lower engaging plate 212 and a sliding rack 222 fixed on the upper engaging plate 221, the upper engaging plate 221 is provided with a second inclined surface 223 abutting against the first inclined surface 213, the sliding rack 222 is overlapped in the protective box 21 and a sliding slot is provided on a side wall of the sliding rack 222, an L-shaped positioning plate is provided in the protective box 21 corresponding to the sliding slot, the upper engaging plate 221 and the lower engaging plate 212 always abut against each other through the first inclined surface 213 and the second inclined surface 223, when the upper engaging plate 221 moves towards the lower engaging plate 212 through the sliding rack 222, the lower engaging plate 212 can transfer the protective box 21 through the plate outlet hole, the upper engaging plate 221 is provided with a toggle gear 224 engaged therewith through a side of the sliding rack 222 and the toggle gear 224 can be rotatably installed on the protective box 21, the toggle gear 224 is provided with a hydraulic member 5 and the hydraulic member 5 is in transmission fit with the toggle gear 224, the hydraulic part 5 can drive the toggle gear 224 to rotate, and when the toggle gear 224 rotates, the sliding rack 222 engaged with the toggle gear can be driven to slide on the positioning plate.

Specifically, the hydraulic part 5 comprises a resistance plate 51, a limiting plate 52 and a return spring 53, the resistance plate 51 and the limiting plate 52 are arranged at intervals, two ends of the return spring 53 are fixedly connected with the resistance plate 51 and the limiting plate 52 respectively, the limiting plate 52 is fixedly connected with the protection box 21, two sides of the limiting plate 52 are provided with a guide plate 54 and a transmission plate 55 respectively, the guide plate 54 and the transmission plate 55 are fixedly connected with the resistance plate 51, the transmission plate 55 is in transmission fit with a toggle gear 224, a tooth groove meshed with the toggle gear 224 is formed in the transmission plate 55, fluid quickly passes through a liquid passage, pressure is applied to the resistance plate 51 after the fluid passes through a filter screen 215, the resistance plate 51 and the transmission plate 55 move towards the limiting plate 52 simultaneously, the transmission plate 55 drives the toggle gear 224 to rotate through the tooth groove, so that a sliding rack 222 drives an upper joint plate 221 to move towards a lower joint plate 212, and the upper joint plate 221 is jointed with a first inclined plane 213 on the lower joint plate 212 through a second inclined plane 223, so that one end of a protection plate 23 passes through a second inclined plane The plate hole extends to before 3 lateral walls of valve plate, metal object or sharp object that will probably strike 3 lateral walls of valve plate block through guard plate 23, in order to avoid metal object or sharp object to damage 3 lateral walls of valve plate and lead to that valve body 1 is unable sealed, the atress area of guard plate 23 is less than the atress area of resistance plate 51, when valve plate 3 is closed to needs, through at the uniform velocity rotation control handle 4 make 3 slow liquid channel of crossing of valve plate seal, when valve plate 3 is the level form, rivers are unable when providing the interference force for resistance plate 51, thereby reset spring 53 stimulates resistance plate 51 and resets and makes guard plate 23 shrink to in the protection box 21.

Specifically, offer on the protection box 21 and supply the gliding square hole of resistance panel 51 and be equipped with protection box 214 on the square hole, be equipped with filter screen 21 on the protection box 214, filter screen 215 that sets up on protection box 214 is used for filtering the metallics or sharp thing in the fluid and leads to resistance panel 51 to damage or bend on preventing the clashing into resistance panel 51 of metallics or sharp thing in the fluid, and filter screen 215 inclines to set up, and when the waste material that contains in the liquid remained on filter screen 215, also can be taken away by the rivers washout of process, can not cause on attaching to filter screen 215 and pile up.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a high barrier propterty butterfly valve which characterized in that: including valve body (1) and protective assembly (2), be equipped with the liquid passageway of crossing that supplies the fluid to pass through in valve body (1), it can be with its confined valve plate (3) to cross to be equipped with in the liquid passageway, be equipped with on valve body (1) and be used for controlling valve plate (3) pivoted control handle (4), protective assembly (2) are installed on valve plate (3), protective assembly (2) are including protecting box (21), pressing piece (22) and guard plate (23), guard plate (23) slope sets up and guard plate (23) and protection box (21) sliding fit, pressing piece (22) are arranged in protection box (21) and are pressed piece (22) and guard plate (23) conflict cooperation.

2. The butterfly valve with high protection performance according to claim 1, wherein: protection box (21) semicircular in shape sets up and protection box (21) are installed on the lateral wall of valve body (1), the play diaphragm orifice that supplies protection plate (23) to pass through is seted up to protection box (21) semicircular in shape one side, the opposite side of protection box (21) is seted up liquid through hole (211) that a plurality of supplied fluid to pass through, and liquid through hole (211) of a plurality of are along the equidistant setting of a straight line.

3. The butterfly valve with high protection performance according to claim 1, wherein: the outside of guard plate (23) can pass out the diaphragm orifice and extend outside guard box (21), the inboard of guard plate (23) is arranged in guard box (21) and is equipped with a plurality of connecting plate (231) on this inboard, and a plurality of connecting plate (231) all are equipped with tension spring (232) that the slope set up on every connecting plate (231) along the equidistant setting of circumference of guard box (21).

4. The butterfly valve with high protection performance of claim 3, wherein: be equipped with down plywood (212) in guard box (21), down plywood (212) are located the below of a plurality of connecting plate (231) and down plywood (212) and guard plate (23) fixed connection, be equipped with first inclined plane (213) on down plywood (212).

5. The butterfly valve with high protection performance according to claim 1, wherein: according to the utility model, pressing member (22) include last plywood (221) of contradicting with lower plywood (212) and fix slip rack (222) on last plywood (221), be equipped with on last plywood (221) with first inclined plane (213) second inclined plane (223) of laminating mutually, slip rack (222) overlap joint is equipped with the spout in protection box (21) and on the lateral wall of slip rack (222), correspond the locating plate that the spout was equipped with the L type in protection box (21).

6. The butterfly valve with high protection performance of claim 5, wherein: a toggle gear (224) meshed with the sliding rack (222) is arranged beside the sliding rack (222), the toggle gear (224) can be rotatably arranged on the protective box (21), a hydraulic part (5) is arranged beside the toggle gear (224), and the hydraulic part (5) is in transmission fit with the toggle gear (224).

7. The butterfly valve with high protection performance of claim 6, wherein: the hydraulic part (5) comprises a resistance plate (51), a limiting plate (52) and a return spring (53), wherein the resistance plate (51) and the limiting plate (52) are arranged at intervals, two ends of the return spring (53) are fixedly connected with the resistance plate (51) and the limiting plate (52) respectively, the limiting plate (52) is fixedly connected with a protection box (21), two sides of the limiting plate (52) are provided with a guide plate (54) and a transmission plate (55) respectively, the guide plate (54) and the transmission plate (55) are fixedly connected with the resistance plate (51), and the transmission plate (55) is in transmission fit with the shifting gear (224) and is provided with a tooth groove meshed with the shifting gear (224).

8. The butterfly valve with high protection performance of claim 7, wherein: the protection box (21) is provided with a square hole for the resistance plate (51) to slide, a protection box (214) is arranged on the square hole, and a filter screen (215) is arranged on the protection box (214).