CN212318808U - Silt-proof butterfly valve - Google Patents

Abstract

The utility model discloses a prevent silt type butterfly valve, which comprises a valve body, the valve body is hollow cylinder structure, on the both ends lateral wall of valve body respectively first ring flange of fixedly connected with and second ring flange, the valve body is close to the inboard lateral wall fixedly connected with infundibulate siphunculus of one end of first ring flange, infundibulate siphunculus both ends are the end of giving out water and intaking respectively and hold, the infundibulate siphunculus is close to one side lateral wall fixedly connected with support of the end of intaking, the support is close to the intermediate position and has seted up first through-hole, the first through-hole internal rotation is connected with the pivot, the three helical fan blade of even. The utility model relates to a butterfly valve technical field, through the setting of infundibulate siphunculus and helical fan blade, open the valve body after, helical fan blade receives fluidic velocity of flow and rotates, forms vortex effect in making the valve body, attracts the silt impurity in the fluid, makes it can not adhere in the valve body, has avoided the silt jam problem of valve body.

Description

Silt-proof butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a prevent silt type butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The existing butterfly valve cannot separate and block silt in actual use, and the silt is easy to form a layer of dirty dirt on the inner wall of the butterfly valve after long-time use, so that the use effect of the butterfly valve is weakened; and the fixing effect of the valve shaft in the butterfly valve is not good, so that the valve shaft is not convenient to fix.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a silt-proof butterfly valve, which solves the problems that the prior art provides a butterfly valve which can not separate silt in the market and can be used for a long time, the silt can easily form a layer of dirty dirt on the inner wall of the butterfly valve, and the use effect of the butterfly valve is weakened; and the fixing effect of the valve shaft in the butterfly valve is not good, so that the valve shaft is not convenient to fix.

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

a silt-proof butterfly valve comprises a valve body, wherein the valve body is of a hollow cylinder structure, a first flange and a second flange are fixedly connected to the side walls of the two ends of the valve body respectively, a funnel-shaped through pipe is fixedly connected to the inner side wall of one end, close to the first flange, of the valve body, the two ends of the funnel-shaped through pipe are respectively a water outlet end and a water inlet end, a support is fixedly connected to the side wall, close to the water inlet end, of the funnel-shaped through pipe, a first through hole is formed in the support, close to the middle of the support, a rotating shaft is rotatably connected to the first through hole, three spiral fan blades are uniformly and fixedly connected to the side wall of the rotating shaft, a chuck is fixedly connected to the side wall of one end, close to the second flange, of the valve body, a plurality of clamping blocks are uniformly distributed on, the lower extreme fixedly connected with butterfly plate of valve shaft, the upper end surface of valve shaft evenly is equipped with a plurality of prisms, and the upper end surface cover of valve shaft is equipped with the sleeve pipe, sheathed tube inboard lateral wall seted up with prismatic assorted draw-in groove, sheathed tube lower extreme lateral wall is equipped with a plurality of lugs, the upper end top fixedly connected with retaining ring of valve shaft, one side lateral wall fixedly connected with spring of retaining ring, the other end and sheathed tube one side lateral wall of spring offset.

Preferably, the side wall of the spiral fan blade is in sliding connection with the inner side wall of the funnel-shaped through pipe in a clinging mode.

Preferably, the length of the sleeve is less than the length of the valve shaft beyond the outside of the valve body.

Preferably, the surface of the sleeve is provided with anti-skid grains.

Preferably, the shape and size of the spiral fan blade are matched with the shape and size of the inner wall of the funnel-shaped through pipe.

Preferably, the diameter of the retainer ring is larger than the diameter of the spring and the sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the arrangement of the funnel-shaped through pipe, the rotating shaft, the support, the spiral fan blades, the water inlet end, the water outlet end and other components, after the valve is opened, fluid enters the funnel-shaped through pipe from the water inlet end, the flow rate of the fluid is accelerated due to the horn-mouth-shaped structure of the water inlet end, the spiral fan blades which are rotatably connected to the support are driven to rotate due to the accelerated flow rate of the fluid, the rotation of the spiral fan blades enables the fluid to generate a vortex effect, the attraction is generated on silt impurities in the fluid, the flowability of the silt impurities is improved, the spiral fan blades tightly cling to the inner wall of the funnel-shaped through pipe to slide, the silt impurities cannot adhere to the inner wall of the funnel;

2. through the valve shaft, the butterfly plate, the sleeve pipe, a spring, prismatic, the setting of subassembly such as chuck and retaining ring, when the valve body is opened to needs, promote the sleeve pipe, make it keep away from the chuck, because the intraductal wall of sleeve has seted up with prismatic assorted draw-in groove, so when rotating the sleeve pipe, the valve shaft rotates thereupon, rotate with valve shaft fixed connection's butterfly plate, accomplish the action of opening of valve body, the back is opened to the valve body, loosen the sleeve pipe, the spring that offsets with sleeve pipe one end supports the sleeve pipe bottom the chuck, the lug that the sleeve pipe bottom set up and the fixture block looks block on chuck surface, thereby fix the valve shaft.

Drawings

Fig. 1 is a left side view schematic structural diagram of a silt-proof butterfly valve provided by the present invention;

fig. 2 is a schematic diagram of a right-view structure of a silt-proof butterfly valve according to the present invention;

fig. 3 is a schematic view of a funnel-shaped pipe structure of a silt-proof butterfly valve according to the present invention;

fig. 4 is a schematic structural view of the spiral blade of the silt-proof butterfly valve of the present invention.

In the figure: 1. a valve body; 2. a first flange plate; 3. a valve shaft; 4. a sleeve; 5. a chuck; 6. a retainer ring; 7. a spring; 8. a funnel-shaped through pipe; 9. a support; 10. a rotating shaft; 11. a helical fan blade; 12. a second flange plate; 13. a butterfly plate; 14. a prism; 15. a water outlet end; 16. a water inlet end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like 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, and 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 therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a silt-proof butterfly valve comprises a valve body 1, the valve body 1 is a hollow cylinder structure, the side walls of the two ends of the valve body 1 are respectively and fixedly connected with a first flange 2 and a second flange 12, the inner side wall of one end of the valve body 1 close to the first flange 2 is fixedly connected with a funnel-shaped through pipe 8, the two ends of the funnel-shaped through pipe 8 are respectively a water outlet end 15 and a water inlet end 16, the side wall of one side of the funnel-shaped through pipe 8 close to the water inlet end 16 is fixedly connected with a support 9, the support 9 close to the middle position is provided with a first through hole, the first through hole is rotatably connected with a rotating shaft 10, the side wall of the rotating shaft 10 is uniformly and fixedly connected with three spiral blades 11, the shape and size of the spiral blades 11 are matched with the shape and size of the inner wall of the funnel-shaped through pipe 8, the inner wall of the funnel-shaped through pipe 8 is convenient to scrape, a chuck 5 is fixedly connected on the side wall of one end of the valve body 1 close to the second flange 12, a plurality of clamping blocks are uniformly distributed on the side wall of the chuck 5 around the circumference of the chuck, a second through hole is formed in the center of the valve body 1 penetrating through the chuck 5, a valve shaft 3 is inserted in the second through hole, a butterfly plate 13 is fixedly connected at the lower end of the valve shaft 3, a plurality of prisms 14 are uniformly arranged on the upper end surface of the valve shaft 3, a sleeve 4 is sleeved on the upper end surface of the valve shaft 3, anti-skid grains are formed on the surface of the sleeve 4, the use of an operator is convenient, the length of the sleeve 4 is smaller than the length of the valve shaft 3 exceeding the outer side of the valve body 1, the sleeve 4 is convenient to lift, a clamping groove matched with the prisms 14 is formed on the side wall of the inner side of, the spring 7 and the sleeve 4 are prevented from falling off, the spring 7 is fixedly connected to the side wall of one side of the retainer ring 6, and the other end of the spring 7 is abutted to the side wall of one side of the sleeve 4.

In the utility model, firstly, an operator fixedly connects the first flange 2 and the second flange 12 to the pipeline respectively, when the valve body 1 needs to be opened, the sleeve 4 is lifted to be away from the chuck 5, because the inner wall of the sleeve 4 is provided with a clamping groove matched with the prism 14, when the sleeve 4 is rotated, the valve shaft 3 rotates along with the sleeve, the butterfly plate 13 fixedly connected with the valve shaft 3 rotates to complete the opening action of the valve body 1, after the valve body 1 is opened, the sleeve 4 is loosened, the spring 7 which is propped against one end of the sleeve 4 props against the bottom of the sleeve 4 against the chuck 5, and a lug arranged at the bottom of the sleeve 4 is clamped with a clamping block on the surface of the chuck 5, so as to fix the valve shaft 3; when opening valve body 1 back, the fluid gets into in infundibulate siphunculus 8 from end 16 of intaking, because end 16 of intaking sets up for the structure of horn mouth shape, make fluidic velocity of flow accelerate, because fluidic velocity of flow accelerates, drive to rotate spiral flabellum 11 of connecting on support 9 and rotate, spiral flabellum 11's rotation makes the fluid produce the vortex effect, silt impurity in the fluid produces the appeal, the mobility of silt impurity has been improved, and spiral flabellum 11 pastes the inner wall of tight infundibulate siphunculus 8 and slides, make silt impurity can not adhere to the inner wall in infundibulate siphunculus 8, the jam problem of valve body 1 has been avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a prevent silt type butterfly valve, includes valve body (1), its characterized in that, valve body (1) is hollow cylinder structure, on the both ends lateral wall of valve body (1) respectively fixedly connected with first ring flange (2) and second ring flange (12), the inboard lateral wall fixedly connected with infundibulate siphunculus (8) of one end that valve body (1) is close to first ring flange (2), infundibulate siphunculus (8) both ends are water outlet end (15) and water inlet end (16) respectively, one side lateral wall fixedly connected with support (9) that infundibulate siphunculus (8) are close to water inlet end (16), first through-hole has been seted up near the intermediate position to support (9), first through-hole internal rotation is connected with pivot (10), evenly fixedly connected with three spiral fan blade (11) on the lateral wall of pivot (10), fixedly connected with chuck (5) on the one end lateral wall that valve body (1) is close to, the improved valve is characterized in that a plurality of clamping blocks are uniformly distributed on the side wall of the chuck (5) around the circumference of the chuck, a second through hole is formed in the center of the valve body (1) penetrating through the chuck (5), a valve shaft (3) is inserted into the second through hole, a butterfly plate (13) is fixedly connected to the lower end of the valve shaft (3), a plurality of prisms (14) are uniformly arranged on the upper end surface of the valve shaft (3), a sleeve (4) is sleeved on the upper end surface of the valve shaft (3), clamping grooves matched with the prisms (14) are formed in the inner side wall of the sleeve (4), a plurality of convex blocks are arranged on the lower end side wall of the sleeve (4), a check ring (6) is fixedly connected to the top of the upper end of the valve shaft (3), a spring (7) is fixedly connected to one side wall of the check ring (6).

2. A silt-proof butterfly valve according to claim 1, characterised in that the side walls of the spiral blades (11) are slidingly connected against the inside side walls of the funnel-shaped duct (8).

3. A silt-proof butterfly valve according to claim 1, characterized in that the length of said sleeve (4) is less than the length of the valve shaft (3) beyond the outside of the valve body (1).

4. The silt-proof butterfly valve according to claim 1, wherein the surface of said sleeve (4) is provided with anti-slip lines.

5. A silt-proof butterfly valve according to claim 1, characterized in that the shape and size of the spiral blades (11) match the shape and size of the inner wall of the funnel-shaped pipe (8).

6. A silt-proof butterfly valve according to claim 1, characterized in that the diameter of said collar (6) is greater than the diameter of the spring (7) and of the sleeve (4).

Images