CN210566314U

CN210566314U - Double-acting execution butterfly valve

Info

Publication number: CN210566314U
Application number: CN201921723051.1U
Authority: CN
Inventors: 张先读; 陈仁克
Original assignee: Zhejiang Boke Valve Technology Co Ltd
Current assignee: Zhejiang Boke Valve Technology Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-05-19
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a butterfly valve is carried out to two effects, the valve gap of seting up including valve body and valve body top, the inside rotation of valve gap is connected with rotates the handle, and rotates under the handle terminal surface fixedly connected with bevel gear, fixedly connected with fixed plate in the valve body inner chamber, and fixed plate center department rotates and is connected with the second valve rod to the laminating of fixed plate right side has the helical gear, the helical gear is connected with the bevel gear meshing, the first valve rod of helical gear right side fixedly connected with, and first valve rod right-hand member fixedly connected with case to first valve rod left side center department has seted up the spout, second valve rod left side fixedly connected with rotates the piston. The utility model discloses in, adopted two effect valve body structures, realized reducing the case and produced the possibility that the cavitation damaged, adopted a plurality of friction limit structure, realized that the case is difficult to deflect under the blockking of resistance, reduced the trouble that the auto-lock was used.

Description

Double-acting execution butterfly valve

Technical Field

The utility model relates to a valve equipment technical field especially relates to a two effect butterfly valves of carrying out.

Background

The butterfly valve is a simple regulating valve, and can be used for the on-off control of low-pressure pipeline medium, i.e. the closing member is a disk, and can be rotated around the valve shaft to open and close the valve.

The existing butterfly valve is widely applied in pipeline transportation, however, the existing butterfly valve often has the following defects in the use process, firstly, if the valve is in a state with large throttling amplitude in the use process of the butterfly valve, the back of the valve plate is easy to generate cavitation erosion, and the possibility of damaging the valve is reduced; secondly, when the valve is in the middle opening degree, the operating mechanism needs to be self-locked due to the action of the water flow dynamic moment, and the butterfly valve is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the double-acting execution butterfly valve is provided for solving the problem that the butterfly valve is large in throttling amplitude and easy to damage.

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

the utility model provides a butterfly valve is carried out to two effects, includes the valve gap that valve body and valve body top were seted up, the valve gap internal rotation is connected with the rotation handle, and rotates terminal surface fixedly connected with bevel gear under the handle, fixedly connected with fixed plate in the valve body inner chamber, and fixed plate center department rotates and is connected with the second valve rod to the laminating of fixed plate right side has the helical gear, the helical gear is connected with the bevel gear meshing, the first valve rod of helical gear right side fixedly connected with, and first valve rod right-hand member fixedly connected with case to first valve rod left side center department has seted up the spout, second valve rod left side fixedly connected with rotary piston.

As a further description of the above technical solution:

the right side of the second valve rod is provided with a sliding block, and the sliding block is connected with the sliding groove in a sliding mode.

As a further description of the above technical solution:

tooth grooves are formed in the left side of the upper fixing plate on the inner wall of the valve body, and the tooth grooves are meshed and connected with meshing teeth on the side surface wall of the rotating piston.

As a further description of the above technical solution:

the horizontal cross-section of the valve body is of an L-shaped structure, a valve hole is formed in the corner of the valve body, and the valve hole is attached to the valve core.

As a further description of the above technical solution:

the valve gap joint has the bearing, and the valve gap passes through the bearing and rotates the handle rotation and be connected.

As a further description of the above technical solution:

the two sides of the rotary piston are mutually communicated through the through grooves, a plurality of supporting rods are arranged at the center of the fixing plate, through holes are formed between every two adjacent supporting rods, and the through holes penetrate through the two sides of the fixing plate.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, double-acting valve body structure has been adopted, owing to adopted the meshing between bevel gear and the helical gear to be connected, and the helical gear is through the fixed connection between first valve rod and the case, realized rotating the handle and controlled the case, owing to adopted sliding connection between slider and the spout again, and meshing between rotating piston and the tooth's socket is connected, realized that first valve rod pivoted in-process drives rotating piston to the motion of fixed plate direction, thereby realized that rotating piston reduces the velocity of flow with the fixed plate when being close to mutually, use under the condition that is less than 15 in order to avoid the case to rotate, thereby realized reducing the possibility that the case produced the cavitation erosion damage.

2. The utility model discloses in, a plurality of friction limit structure have been adopted, owing to adopted the intercommunication of each other of rotating piston and fixed plate both sides, realized rivers and received the guide of branch when through-hole, with reduce the inside vortex's that produces possibility of valve body, thereby realized having reduced the case and received rivers moment pivoted defect, again owing to adopted the sliding connection between slider and the spout, and the meshing between rotating piston and the tooth's socket is connected, realized that the case is difficult to deflect under the blockking of resistance, reduce the trouble that the auto-lock was used.

Drawings

Fig. 1 shows a schematic front view internal structure diagram provided according to an embodiment of the present invention;

3 fig. 3 2 3 shows 3 a 3 schematic 3 structural 3 diagram 3 at 3 a 3- 3 a 3 section 3 provided 3 according 3 to 3 an 3 embodiment 3 of 3 the 3 present 3 invention 3; 3

Fig. 3 shows a schematic structural diagram of a B-B cross section provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a valve body; 2. rotating the handle; 3. a valve cover; 4. a bearing; 5. a bevel gear; 6. a helical gear; 7. a tooth socket; 8. rotating the piston; 9. a fixing plate; 10. a slider; 11. a chute; 12. a first valve stem; 13. a valve bore; 14. a valve core; 15. a through hole; 16. a strut; 17. a second valve stem.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a butterfly valve is carried out to two effects, valve gap 3 seted up including

valve body

1 and 1 top of valve body, 3 internal rotation of valve gap is connected with and rotates handle 2, and rotate 2 terminal surface fixedly connected with bevel gear 5 under the handle, fixedly connected with fixed plate 9 in the 1 inner chamber of valve body, and fixed plate 9 center department rotates and is connected with second valve rod 17, and the laminating of fixed plate 9 right side has helical gear 6, helical gear 6 is connected with bevel gear 5 meshing, the first valve rod 12 of helical gear 6 right side fixedly connected with, and first valve rod 12 right-hand member fixedly connected with case 14, and spout 11 has been seted up to first valve rod 12 left side center department, second valve rod 17 left side fixedly connected with rotating piston 8, with the control that carries out little velocity of flow through the distance control between rotating piston 8 and the fixed plate 9, with the problem of the easy cavitation damage.

Specifically, as shown in fig. 1, a slider 10 is disposed on the right side of the second valve rod 17, and the slider 10 is slidably connected to the sliding slot 11, so that the first valve rod 12 and the second valve rod 17 slide and rotate in the same direction.

Specifically, as shown in fig. 1, tooth grooves 7 are formed in the left side of an upper fixing plate 9 on the inner wall of the valve body 1, and the tooth grooves 7 are meshed with the meshing teeth on the side surface wall of the rotary piston 8, so that the rotary piston 8 can move axially when rotating.

Specifically, as shown in fig. 1-3, the horizontal section of the valve body 1 is an L-shaped structure, a valve hole 13 is formed at a corner of the valve body 1, and the valve hole 13 is attached to the valve element 14, so that the valve element 14 and the valve hole 13 are matched with each other for use.

Specifically, as shown in fig. 1, the valve cover 3 is connected with a bearing 4 in a clamping manner, and the valve cover 3 is rotatably connected with the rotating handle 2 through the bearing 4, so that the rotating handle 2 can stably rotate, and the bevel gear 5 and the bevel gear 6 can stably engage for transmission.

Specifically, as shown in fig. 1, the two sides of the rotary piston 8 are communicated with each other through the through groove, the center of the fixing plate 9 is provided with a plurality of supporting rods 16, the adjacent supporting rods 16 are provided with through holes 15, the through holes 15 penetrate through the two sides of the fixing plate 9, and the through holes 15 are not communicated with the through groove in the rotary piston 8, so that the rotary piston 8 and the fixing plate 9 are mutually attached to seal water flow.

The working principle is as follows: when the valve core is used, firstly, the bevel gear 5 is in meshed connection with the bevel gear 6, the bevel gear 6 is in fixed connection with the valve core 14 through the first valve rod 12, so that the valve core 14 is controlled through the rotating handle 2, then the sliding connection between the sliding block 10 and the sliding groove 11 is realized, and the meshed connection between the rotating piston 8 and the tooth groove 7 is realized, so that the rotating piston 8 is driven to move towards the direction of the fixed plate 9 in the rotating process of the first valve rod 12, the water flow velocity is reduced when the rotating piston 8 and the fixed plate 9 approach each other, the valve core 14 is prevented from being used when rotating to a degree lower than 15 degrees, and the possibility of cavitation damage to the valve core 14 is reduced; secondly, through the intercommunication of the both sides of rotary piston 8 and fixed plate 9 for rivers receive the guide of branch 16 when passing through-hole 15, in order to reduce the inside vortex's that produces possibility of valve body 1, thereby reduced the shortcoming that case 14 received rivers moment pivoted, and then through the sliding connection between slider 10 and the spout 11, and the meshing connection between rotary piston 8 and the tooth's socket 7, make case 14 be difficult to deflect under the blockking of resistance, reduce the trouble that the auto-lock was used.

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

1. A double-acting execution butterfly valve comprises a valve body (1) and a valve cover (3) arranged at the top of the valve body (1), it is characterized in that a rotating handle (2) is rotatably connected inside the valve cover (3), a bevel gear (5) is fixedly connected with the lower end surface of the rotating handle (2), a fixed plate (9) is fixedly connected in the inner cavity of the valve body (1), a second valve rod (17) is rotatably connected at the center of the fixed plate (9), and the right side of the fixed plate (9) is jointed with a bevel gear (6), the bevel gear (6) is meshed and connected with the bevel gear (5), a first valve rod (12) is fixedly connected to the right side of the helical gear (6), a valve core (14) is fixedly connected to the right end of the first valve rod (12), and the center of the left side of the first valve rod (12) is provided with a sliding groove (11), and the left side of the second valve rod (17) is fixedly connected with a rotary piston (8).

2. A double acting butterfly valve according to claim 1, wherein the second stem (17) has a slider (10) on the right and the slider (10) is slidably connected to the runner (11).

3. A double acting butterfly valve according to claim 1, characterised in that the inner wall of the valve body (1) is provided with splines (7) on the left side of the fixed plate (9), and the splines (7) are in meshing engagement with the meshing teeth on the side surface wall of the rotary piston (8).

4. A double acting butterfly valve according to claim 1, wherein the valve body (1) has an L-shaped horizontal cross-section, a valve hole (13) is formed at a corner of the valve body (1), and the valve hole (13) is attached to the valve core (14).

5. A double acting butterfly valve according to claim 1, wherein the valve cover (3) is snap-fitted with a bearing (4), and the valve cover (3) is rotatably connected to the rotary handle (2) by means of the bearing (4).

6. A double acting butterfly valve according to claim 1, wherein the two sides of the rotary piston (8) are interconnected by a through slot, the fixing plate (9) has a plurality of support rods (16) at the center thereof, and a through hole (15) is formed between each two adjacent support rods (16), the through hole (15) passing through the two sides of the fixing plate (9).