CN220581703U

CN220581703U - Manual butterfly valve

Info

Publication number: CN220581703U
Application number: CN202321532099.0U
Authority: CN
Inventors: 何鹏飞; 董桃敏; 何静; 涂忠鹤
Original assignee: Shanghai Gaote Environmental Protection Technology Engineering Co ltd
Current assignee: Shanghai Gaote Environmental Protection Technology Engineering Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2024-03-12
Anticipated expiration: 2033-06-15

Abstract

The utility model provides a manual butterfly valve, which comprises a valve body, a valve plate and a valve rod, wherein the valve body is cylindrical, the axial length is short, the valve plate is arranged in the valve body, and the lower end of the valve rod is fixedly connected with the valve plate; the upper end of the valve body is fixedly connected with a bracket, the valve rod is rotationally connected with the bracket, the top end of the valve rod is fixedly provided with a rotary handle, one end of the rotary handle is provided with scales, and the bracket is provided with a locking mechanism for locking the position of the rotary handle at the opening of the target valve; through installing locking mechanism on the support, can be when the valve plate rotates to the target aperture, the locking the position of rotatory handle avoids the valve plate to take place to rotate under fluidic effect, through setting up the scale in spout one side, can realize the visualization of valve aperture, and then repeatedly operable sets up the valve aperture at the target aperture.

Description

Manual butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to a manual butterfly valve.

Background

The butterfly valve is widely applied to the production processes of building materials, metallurgy, mines, electric power and the like and is used for communicating, opening and closing or regulating the medium quantity. The butterfly valve is to rotate the valve plate to realize the opening and closing of the valve by rotating the valve rod, is commonly used for the on-off control of low-pressure pipeline media, can control various types of fluid control such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays roles of cutting off and throttling on the pipeline. The structure mainly comprises a valve body, a valve plate, a valve rod and a sealing ring, wherein the valve body is cylindrical, has short axial length and is internally provided with the valve plate. The butterfly valve has various advantages, is rapid and labor-saving to open and close, has small fluid resistance and is convenient to install; the sealing surface is made of rubber and plastic, and can achieve good sealing effect under low pressure.

In the prior art, the upper end of the valve rod of the butterfly valve is provided with a hand wheel or a handle which is convenient to rotate, and the butterfly valve can be opened or closed in a relatively labor-saving manner through the hand wheel or the handle, but in certain cases, the valve plate is not required to be completely opened or closed, but the valve opening is hoped to be stepless regulated and can be arbitrarily fixed at a certain target opening, the operation can be repeated, the valve plate is ensured to be fixed at a certain target opening each time, and the butterfly valve in the prior art does not have the function.

Disclosure of Invention

(one) solving the technical problems

In view of the above-described drawbacks of the prior art, an object of the present utility model is to provide a manual butterfly valve for solving the problem that the manual butterfly valve in the prior art cannot achieve stepless adjustment of the opening degree and arbitrarily set the target opening degree.

(II) technical scheme

In order to achieve the above and other related objects, the present utility model provides a manual butterfly valve, including a valve body, a valve plate and a valve rod, wherein the valve body is cylindrical, has a short axial length, is internally provided with the valve plate, and the lower end of the valve rod is fixedly connected with the valve plate; the valve is characterized in that a support is fixedly connected to the upper end of the valve body, the valve rod is rotationally connected with the support, a rotary handle is fixedly mounted on the top end of the valve rod, scales are arranged at one end of the rotary handle, and a locking mechanism for locking the position of the rotary handle at the opening of the target valve is arranged on the support.

In the design, the locking mechanism is arranged on the bracket, so that the position of the rotary handle can be locked when the valve plate rotates to the target opening degree; the valve plate is prevented from rotating under the action of fluid.

Preferably, the locking mechanism comprises a fastener and a chute matched and locked with the fastener, the lower end of the fastener is fixedly connected to the bracket, and the chute is arranged on the rotary handle; the upper end of the fastening piece penetrates through the sliding groove and is in sliding connection with the sliding groove, and the upper end of the fastening piece is in threaded connection with a locking nut.

In the design, the rotating handle can be locked at a fixed position by screwing the lock nut, and the free rotation of the handle can be realized by loosening the lock nut.

Further, the fastener adopts a bolt assembly, comprising a bolt and a nut.

Preferably, a scale for calibrating the opening of the valve is arranged on one side of the chute. The clients are arranged at intervals along one side edge of the sliding groove.

In the design, the scales are arranged on one side of the sliding groove, so that the visualization of the valve opening can be realized, further the operation can be repeated, and the valve opening is set at the target opening.

Preferably, the rotary handle comprises a locking plate and a handle, and the sliding groove is arranged on the locking plate.

In the design, the handle can increase the moment, so that the butterfly valve can be opened or closed more labor-saving.

Preferably, the sliding groove is arc-shaped, and the rotation center of the arc-shaped sliding groove is equal to the rotation center of the valve rod.

In the design, the sliding groove is arc-shaped, and then the scales are arc-shaped, so that the opening angle of the valve plate can be conveniently judged.

(III) technical effects

As described above, the manual butterfly valve has the following beneficial effects: by installing a locking mechanism on the bracket, the position of the rotary handle can be locked when the valve plate rotates to a target opening; the valve plate is prevented from rotating under the action of fluid; through setting up the scale in spout one side, can realize the visualization of valve aperture, and then repeatedly operable sets up the valve aperture at the target aperture.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

FIG. 1 shows a front view of a manual butterfly valve in an embodiment of the utility model;

FIG. 2 is a top view of a manual butterfly valve according to an embodiment of the utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 shows a right side view of a manual butterfly valve in an embodiment of the utility model.

Description of element reference numerals

Valve body 1, valve plate 2, valve rod 3, strengthening rib 4, rotatory handle 5, scale 6, bolt 7, nut 8, spout 9, support 10, lock nut 11, locking plate 12, handle 13, connecting rod 14.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 4. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims, so that any structural modifications, proportional changes, or dimensional adjustments should be made without affecting the efficacy or achievement of the present utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

Referring to fig. 1-4, the present embodiment provides a manual butterfly valve, which includes a valve body 1, a valve plate 2 and a valve rod 3, wherein the valve body 1 is cylindrical, has a short axial length, is internally provided with the valve plate 2, and two ports of the valve body 1 are respectively provided with flanges connected with a pipeline. The lower end of the valve rod 3 is fixedly connected with the valve plate 2; further, the valve rod 3 is connected with the valve plate 2 through the reinforcing ribs 4 in a reinforcing way, and the reinforcing ribs 4 are arranged on two side surfaces of the valve plate 2. The upper end of the valve body 1 is fixedly connected with a support 10, the valve rod 3 is rotationally connected with the support 10, the top end of the valve rod 3 is fixedly provided with a rotary handle 5, one end of the rotary handle 5 is provided with a scale 6, and the support 10 is provided with a locking mechanism for locking the position of the rotary handle 5 at the opening of the target valve. Further, the bracket 10 is a rectangular frame, and the valve rod 3 penetrates the rectangular frame. By installing a locking mechanism on the top of the bracket 10, the position of the rotary handle 5 can be locked when the valve plate 2 rotates to a target opening degree; the valve plate 2 is prevented from rotating under the action of the fluid.

In the embodiment, the locking mechanism comprises a fastening piece and a chute 9 which is matched and locked with the fastening piece, the lower end of the fastening piece is fixedly connected to a bracket 10, and the chute 9 is arranged on the rotary handle 5; the upper end of the fastening piece penetrates through the sliding groove 9 and is in sliding connection with the sliding groove 9, and the upper end of the fastening piece is in threaded connection with a locking nut 11. Further, the lock nut 11 is a butterfly lock nut. By tightening the lock nut 11, the rotary handle 5 can be locked in a fixed position, and free rotation of the handle can be achieved by loosening the lock nut 11.

Further, the fastener employs a bolt 7 assembly, including a bolt 7 and a nut 8.

In this embodiment, a scale 6 for calibrating the opening of the valve is provided on one side of the chute 9. The clients are arranged at intervals along one side of the chute 9. By providing the scale 6 on one side of the chute 9, the visualization of the valve opening can be realized, and further the operation can be repeated, and the valve opening can be set at the target opening.

In this embodiment, the rotary handle 5 includes a locking plate 12, a handle 13 and a connecting rod 14, the chute 9 is disposed on the locking plate 12, the locking plate 12 is integrally formed with the handle 13, and the locking plate 12 is fixedly connected with the valve rod 3 through the connecting rod 14. The handle can increase moment, so that the butterfly valve is more labor-saving when being opened and closed.

In this embodiment, the chute 9 has an arc shape, the rotation center of which is the same as the rotation center of the valve stem 3. The chute 9 is arc-shaped, and then the scale 6 is arc-shaped, so that the opening angle of the valve plate 2 can be conveniently judged.

In summary, according to the utility model, the locking mechanism is arranged on the bracket, so that the position of the rotary handle can be locked when the valve plate rotates to the target opening degree; the valve plate is prevented from rotating under the action of fluid; through setting up the scale in spout one side, can realize the visualization of valve aperture, and then repeatedly operable sets up the valve aperture at the target aperture. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The manual butterfly valve comprises a valve body, a valve plate and a valve rod, wherein the valve body is cylindrical, the axial length is short, the valve plate is arranged in the valve body, and the lower end of the valve rod is fixedly connected with the valve plate;

the valve is characterized in that the upper end of the valve body is fixedly connected with a support, the valve rod is rotationally connected with the support, a rotary handle is fixedly installed at the top end of the valve rod, scales are arranged at one end of the rotary handle, and a locking mechanism for locking the position of the rotary handle at the opening of the target valve is arranged on the support.

2. The manual butterfly valve of claim 1, wherein: the locking mechanism comprises a fastener and a chute matched and locked with the fastener, the lower end of the fastener is fixedly connected to the bracket, and the chute is arranged on the rotary handle; the upper end of the fastening piece penetrates through the sliding groove and is in sliding connection with the sliding groove, and the upper end of the fastening piece is in threaded connection with a locking nut.

3. The manual butterfly valve of claim 2, wherein: and one side of the chute is provided with a scale for calibrating the opening of the valve.

4. The manual butterfly valve of claim 2, wherein: the rotary handle comprises a locking plate and a handle, and the sliding groove is arranged on the locking plate.

5. The manual butterfly valve of claim 2, wherein: the sliding groove is arc-shaped.