CN215720879U

CN215720879U - Fast-assembling type butterfly valve convenient to control flow

Info

Publication number: CN215720879U
Application number: CN202121916226.8U
Authority: CN
Inventors: 朱正杰
Original assignee: Zhejiang Hongxin Valve Co ltd
Current assignee: Zhejiang Hongxin Valve Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-01
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a fast-assembling butterfly valve convenient for controlling flow, which comprises a shell and is characterized in that: the novel butterfly valve is characterized in that a valve body is fixedly mounted inside the shell, a butterfly plate is connected inside the valve body in a sliding mode, a transmission shaft is arranged inside the valve body, the butterfly plate is connected to the transmission shaft in a sleeved mode, a helical gear is fixedly mounted at the upper end of the transmission shaft, the right end of the helical gear is connected with a transmission gear in a meshed mode, an adjusting knob is fixedly mounted at the right end of the transmission gear, a sliding block is connected above the butterfly plate in a sliding mode, a sliding way is arranged inside the valve body and connected into the sliding way, a connecting rod is connected to a right end bearing of the sliding block, a baffle is fixedly mounted above the connecting rod, a pneumatic cylinder is connected above the baffle in a sliding mode, a rotary bearing is fixedly mounted at the upper end of the pneumatic cylinder, and the rotary bearing is mounted on the inner wall of the valve body.

Description

Fast-assembling type butterfly valve convenient to control flow

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a quick-assembly butterfly valve convenient for flow control.

Background

The butterfly valve is a flap valve, can control the passing of the fluid through the radial rotation of the butterfly plate, the range of the rotation angle is 0-90 degrees, the flow can be controlled and adjusted to a certain extent along with the adjustment of the angle, the integral structure is simple, the volume is small, the operation is convenient, and the flap valve can play a good role in cutting off and throttling in the pipeline transportation of various types of gas, oil gas and other fluids; some butterfly valve opening and closing parts on the existing market are disc-shaped butterfly plates, and rotate around the axes of the butterfly plates in a valve body, so that the opening and closing or adjusting purpose is achieved, but the flow is often not accurately controlled, and the flow is easy to change due to unstable fixation of the butterfly plates, therefore, the butterfly valve which is strong in practicability and capable of controlling the flow and is convenient for flow control is necessary to design.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick-assembly butterfly valve convenient for controlling flow, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: fast-assembling type butterfly valve convenient to control flow, including the shell, its characterized in that: the inside fixed mounting of shell has the valve body, the inside sliding connection of valve body has the butterfly plate, the inside of valve body is provided with the transmission shaft, the butterfly plate cup joints on the transmission shaft, the upper end fixed mounting of transmission shaft has the helical gear, the right-hand member meshing of helical gear is connected with drive gear, drive gear's right-hand member fixed mounting has adjust knob.

According to the technical scheme, the top sliding connection of butterfly plate has the slider, the inside of valve body is provided with the slide, the slider slide is connected in the slide, the right-hand member bearing of slider is connected with the connecting rod, the top fixed mounting of connecting rod has the baffle, the top sliding connection of baffle has the pneumatic cylinder, the upper end fixed mounting of pneumatic cylinder has swivel bearing, swivel bearing installs on the inner wall of valve body.

According to the technical scheme, the right end of the shell is provided with the adjusting opening, and the right end of the valve body extends out of the adjusting opening.

According to the technical scheme, the lower extreme fixed mounting of valve body has the excess-pressure valve, the inside fixed mounting of excess-pressure valve has the cooperation piece, sliding connection has the valve ball between the cooperation piece, the below of valve ball is provided with the stretch cord, the both ends fixed mounting of cooperation piece has pressure spring, pressure spring welds inside the excess-pressure valve.

According to the technical scheme, the connecting flange is fixedly mounted at the rear of the shell, and the threaded hole is formed in the upper portion of the connecting flange.

According to the technical scheme, the upper end and the lower end of the transmission shaft are provided with the waterproof sealing rings.

Compared with the prior art, the utility model has the following beneficial effects: in the utility model, the raw materials are mixed,

(1) through the butterfly plate, after the butterfly valve is fixedly installed, the adjusting knob can be rotated to drive the transmission gear to rotate, so that the bevel gear drives the transmission shaft below the butterfly valve to rotate, the butterfly plate rotates, through the steps, the flow inside the valve body can be adjusted, fine adjustment can be performed through the adjusting knob, the butterfly valve is more convenient and accurate to use, after the butterfly plate is adjusted, through rotating the valve body, the pneumatic cylinder inside the butterfly valve is driven to rotate, the connecting rod rotates to press down the baffle plate, the sliding block is driven to clamp and fix the butterfly plate, when the internal pressure is too high, the pressure pushes the sliding block to move outwards to drive the connecting rod to press down the baffle plate, so that the flow inside the butterfly plate is increased, the pressure is rapidly discharged, through the steps, the butterfly plate is fixed, meanwhile, the pressure inside the valve body can be adjusted, and overpressure is prevented;

(2) through being provided with the excess pressure valve, too big when the internal flow, when pressure surpassed, rivers promoted the outside removal of valve ball, promoted the cooperation piece of both sides and remove to both sides for valve ball pulling stretch cord outwards removes, opens the excess pressure valve, with inside rivers discharge the shell in, through above step, realized the overvoltage protection to the valve body, make the valve body can not be because of the excessive pressure emergence accident.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic overall elevational cross-sectional structural view of the present invention;

FIG. 2 is an enlarged, fragmentary view of region A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged partial schematic view of the area B of FIG. 1 in accordance with the present invention;

in the figure: 1. a housing; 2. a valve body; 3. a connecting flange; 4. a butterfly plate; 5. a drive shaft; 6. a helical gear; 7. a transmission gear; 8. adjusting a knob; 9. a pneumatic cylinder; 10. a baffle plate; 11. a connecting rod; 12. a slider; 13. a rotating bearing; 14. a threaded hole; 15. an overpressure valve; 16. a matching block; 17. a pressure spring; 18. a valve ball.

Detailed Description

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

Referring to fig. 1-3, the present invention provides the following technical solutions: fast-assembling type butterfly valve convenient to control flow, including shell 1, its characterized in that: the valve body 2 is fixedly installed inside the shell 1, the butterfly plate 4 is slidably connected inside the valve body 2, the transmission shaft 5 is arranged inside the valve body 2, the butterfly plate 4 is sleeved on the transmission shaft 5, the helical gear 6 is fixedly installed at the upper end of the transmission shaft 5, the right end of the helical gear 6 is meshed with the transmission gear 7, the adjusting knob 8 is fixedly installed at the right end of the transmission gear 7, after the butterfly valve is fixedly installed, the transmission gear 7 can be driven to rotate by rotating the adjusting knob 8, the helical gear 6 drives the transmission shaft 5 below the transmission shaft to rotate, the butterfly plate 4 rotates, through the steps, the flow inside the valve body 2 can be adjusted, fine adjustment can be performed through the adjusting knob 8, and the use is more convenient and accurate;

the upper part of the butterfly plate 4 is connected with a sliding block 12 in a sliding way, the inside of the valve body 2 is provided with a sliding way, the sliding way of the sliding block 12 is connected in the sliding way, the right end bearing of the sliding block 12 is connected with a connecting rod 11, a baffle 10 is fixedly arranged above the connecting rod 11, the upper part of the baffle 10 is connected with a pneumatic cylinder 9 in a sliding way, the upper end of the pneumatic cylinder 9 is fixedly provided with a rotating bearing 13, the rotating bearing 13 is arranged on the inner wall of the valve body 2, after the butterfly plate 4 is adjusted, the internal pneumatic cylinder 9 is driven to rotate through the rotating rod 11, the baffle 10 is pressed down through the rotation of the connecting rod 11, the sliding block 12 is driven to clamp and fix the butterfly plate 4, when the internal pressure is overlarge, the pressure pushes the sliding block 12 to move outwards, the connecting rod 11 is driven to press down the baffle 10, the internal flow is increased, the pressure is discharged quickly, through the steps, the fixation of the butterfly plate 4 is realized, and the internal pressure of the valve body 2 can be adjusted at the same time, preventing overpressure;

the right end of the shell 1 is provided with an adjusting opening, the right end of the valve body 2 extends out of the adjusting opening, and a part of the valve body 2 leaks out through the adjusting opening, so that an operator can conveniently adjust and fix the valve body, and when overpressure occurs, the operator can observe the rotation of the valve body 2 through the adjusting opening to remind the operator of adjusting;

an overpressure valve 15 is fixedly installed at the lower end of the valve body 2, a matching block 16 is fixedly installed inside the overpressure valve 15, a valve ball 18 is connected between the matching blocks 16 in a sliding mode, an elastic rope is arranged below the valve ball 18, pressure springs 17 are fixedly installed at two ends of the matching block 16, the pressure springs 17 are welded inside the overpressure valve 15, when the internal flow is too large and the pressure exceeds the internal flow, water flow pushes the valve ball 18 to move outwards and pushes the matching blocks 16 on two sides to move towards two sides, so that the valve ball 18 pulls the elastic rope to move outwards, the overpressure valve 15 is opened, the internal water flow is discharged into the shell 1, and through the steps, overpressure protection on the valve body 2 is achieved, and accidents caused by overpressure of the valve body 2 are avoided;

the rear part of the shell 1 is fixedly provided with the connecting flange 3, a threaded hole 14 is formed above the connecting flange 3, and when the shell 1 is fixed by the connecting flange 3, the shell can be directly fixed by the threaded hole 14 on the connecting flange 3, so that the assembly is rapid and convenient, and the installation angle can be adjusted as required;

the upper and lower both ends of transmission shaft 5 all are provided with sealed waterproof circle, through being provided with sealed waterproof circle for inside rivers can not leak out through transmission shaft 5, lead to outside working part to take place to corrode etc. leads to whole butterfly valve can not work.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Fast-assembling type butterfly valve convenient to control flow, including shell (1), its characterized in that: the inside fixed mounting of shell (1) has valve body (2), the inside sliding connection of valve body (2) has butterfly plate (4), the inside of valve body (2) is provided with transmission shaft (5), butterfly plate (4) cup joint on transmission shaft (5), the upper end fixed mounting of transmission shaft (5) has helical gear (6), the right-hand member meshing of helical gear (6) is connected with drive gear (7), the right-hand member fixed mounting of drive gear (7) has adjust knob (8).

2. The quick-install butterfly valve convenient to control flow according to claim 1, characterized in that: the top sliding connection of butterfly plate (4) has slider (12), the inside of valve body (2) is provided with the slide, slider (12) slide is connected in the slide, the right-hand member bearing of slider (12) is connected with connecting rod (11), the top fixed mounting of connecting rod (11) has baffle (10), the top sliding connection of baffle (10) has pneumatic cylinder (9), the upper end fixed mounting of pneumatic cylinder (9) has swivel bearing (13), swivel bearing (13) are installed on the inner wall of valve body (2).

3. The quick-install flow-controllable butterfly valve as claimed in claim 2, wherein: the right end of the shell (1) is provided with an adjusting opening, and the right end of the valve body (2) extends out of the adjusting opening.

4. The fast-assembling type butterfly valve convenient to control flow of claim 3, characterized in that: lower extreme fixed mounting of valve body (2) has overpressure valve (15), the inside fixed mounting of overpressure valve (15) has cooperation piece (16), sliding connection has valve ball (18) between cooperation piece (16), the below of valve ball (18) is provided with the stretch cord, the both ends fixed mounting of cooperation piece (16) has pressure spring (17), pressure spring (17) welding is inside overpressure valve (15).

5. The fast-assembling type butterfly valve convenient to control flow of claim 4, characterized in that: a connecting flange (3) is fixedly mounted at the rear of the shell (1), and a threaded hole (14) is formed in the upper portion of the connecting flange (3).

6. The quick-install flow-controllable butterfly valve as claimed in claim 5, wherein: and the upper end and the lower end of the transmission shaft (5) are provided with a sealing waterproof ring.