CN219493075U - Air quantity regulating valve - Google Patents

Abstract

The utility model provides an air quantity regulating valve, which comprises a through valve body, a blade rotatably arranged in the valve body and a driving device for driving the blade to rotate so as to open the valve body or close the valve body, wherein the blade is arranged on the valve body; the driving device comprises a rotating shaft and a rotating handle fixedly connected with the rotating shaft, the rotating shaft rotatably stretches into the valve body and is fixedly connected with the blade, the rotating handle is arranged outside the valve body and comprises a handle body and a driving protruding portion, the driving protruding portion protrudes towards the radial outer side from the handle body, a screw hole is reserved in the driving protruding portion, and after the blade is adjusted in place, a screw is driven into the valve body through the screw hole. According to the air quantity regulating valve, when the blades rotate to the preset opening degree, the screw is driven between the driving protruding portion and the valve body through the screw hole, so that the blades are fixed, and then the blades are prevented from loosening during operation to cause air quantity change.

Description

Air quantity regulating valve

Technical Field

The utility model relates to the technical field of air conditioning system accessories, in particular to an air quantity regulating valve.

Background

The air quantity regulating valve is called air valve for short, is an indispensable central air-conditioning end fitting in ventilation, air-conditioning and air-purifying engineering of civil building of industrial factory building, is generally used in air conditioner and ventilating system pipeline for regulating air quantity of branch pipe, also can be used for mixing regulation of fresh air and return air.

The air quantity regulating valve in the prior art comprises a through valve body, blades rotatably arranged in the valve body, and a driving device for driving the blades to rotate, wherein the driving device drives the blades to rotate so as to open or close the valve body, thereby regulating the air quantity. However, in the conventional air quantity control valve, after the blades are adjusted in place, the blades are not fixed, so that the blades are easy to loosen during operation, and the air quantity is changed.

Therefore, how to provide an air volume regulating valve to solve the problem that the air volume is changed due to the loosening of the blades during operation is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

Accordingly, the present utility model is directed to an air volume adjusting valve, which solves the problem that the air volume is changed due to the loosening of the blades during operation.

In order to achieve the above object, the present utility model provides an air volume control valve, comprising a through valve body, a vane rotatably provided in the valve body, and a driving device for driving the vane to rotate to open the valve body or close the valve body;

the driving device comprises a rotating shaft and a rotating handle fixedly connected with the rotating shaft, the rotating shaft rotatably stretches into the valve body and is fixedly connected with the blade, the rotating handle is arranged outside the valve body and comprises a handle body and a driving protruding portion, the driving protruding portion protrudes towards the radial outer side from the handle body, a screw hole is reserved in the driving protruding portion, and after the blade is adjusted in place, a screw is driven into the valve body through the screw hole.

Preferably, the rotating shaft of the driving device is detachably and fixedly connected with the blade.

Preferably, the blade has a shaft hole adapted to the shape of the shaft of the driving device, and the shaft is inserted into the shaft hole of the blade and fixed by a screw.

Preferably, the shaft hole of the blade is a square hole, and one end of the rotating shaft, which is used for being matched with the blade, is provided with a square head which is matched with the square hole in shape.

Preferably, the blade is provided with a reinforcing rib at a position corresponding to the shaft hole.

Preferably, the number of the driving devices is two, and the driving devices are symmetrically arranged at two radial sides of the blade.

Preferably, the valve body comprises a large-caliber section and a small-caliber section which are connected in a smooth transition mode, the large-caliber section is used for being connected with the main air supply pipe, and the small-caliber section is used for being connected with the branch air supply pipe.

Preferably, the blade is disposed where the large caliber section and the small caliber section meet.

The utility model has the following beneficial effects:

when practical application, the valve body is connected between air supply main pipe and air supply branch pipe, drives the blade rotation through the twist grip thereby realizes opening and closing of valve body, when the blade rotation is to predetermineeing the aperture, drives the screw through the screw hole between drive bellying and the valve body to realize fixing to the blade, prevent then that the blade from taking place not hard up and leading to the amount of wind to change in the operation period.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of a structure of an air volume control valve according to the present utility model;

FIG. 2 is a schematic cross-sectional view of an air volume control valve according to the present utility model;

FIG. 3 is a schematic view of the valve body of FIG. 1 after being uncovered;

FIG. 4 is a schematic diagram of a driving device according to the present utility model;

reference numerals and signs

1-a valve body; 1 a-a large caliber section; 1 b-a small caliber section;

2-leaf blades;

3-a driving device; 3 a-a rotating shaft; 3 b-turning the handle; 3b 1-a handle body; 3b 2-drive lugs;

4-screw holes;

5-reinforcing ribs;

Detailed Description

The utility model aims at providing an air quantity regulating valve so as to solve the problem that the air quantity is changed due to the fact that blades are easy to loosen during operation.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of an air volume adjusting valve according to the present utility model; FIG. 2 is a schematic cross-sectional view of an air volume control valve according to the present utility model; FIG. 3 is a schematic view of the valve body of FIG. 1 after being uncovered; fig. 4 is a schematic structural view of a driving device according to the present utility model.

The embodiment of the utility model discloses an air quantity regulating valve, which comprises a through valve body 1, a blade 2 rotatably arranged in the valve body 1 and a driving device 3 for driving the blade 2 to rotate so as to open the valve body 1 or close the valve body 1. Perpendicular to the valve body 1 when the vane 2 is in the closed state and parallel to the valve body 1 when the vane 2 is opened by a maximum angle.

The driving device 3 is used for driving the blades to open or close, and comprises a rotating shaft 3a and a rotating handle 3b fixedly connected with the rotating shaft 3a, wherein the rotating shaft 3a rotatably stretches into the valve body 1 and is fixedly connected with the blades 2. The rotating handle 3b is arranged outside the valve body 1 and comprises a handle body 3b1 and a driving protruding part 3b2, the driving protruding part 3b2 protrudes from the handle body 3b1 towards the radial outer side, and a screw hole 4 is reserved on the driving protruding part 3b 2.

When the air supply device is in practical application, the valve body 1 is connected between the main air supply pipe and the branch air supply pipe, the blade 2 is driven to rotate through the rotating handle 3b so as to open and close the valve body 1, when the blade 2 rotates to a preset opening degree, a screw is driven between the driving protruding portion 3b2 and the valve body 1 through the screw hole 4, so that the blade 2 is fixed, and then the blade 2 is prevented from loosening during operation to cause the change of air quantity.

As shown in fig. 3 and 4, in some specific embodiments, the air quantity adjusting valve is detachably and fixedly connected with the rotating shaft 3a of the driving device 3 and the blade 2 for convenience of assembly. Specifically, the blade 2 has a shaft hole adapted to the shape of the rotary shaft 3a of the driving device, and the rotary shaft 3a is inserted into the shaft hole of the blade 2 and fixed by an insertion screw.

In other specific embodiments, as shown in fig. 3 and 4, the shaft hole of the blade 2 is a square hole, and the end of the rotating shaft 3a for being matched with the blade is provided with a square head matched with the square hole in shape. The blades 2 and the rotating shaft 3a are matched in a square Kong Fangxing head mode, so that circumferential positioning of the blades 2 and the rotating shaft 3a is achieved, and the blades 2 can be driven to rotate simultaneously without slipping when the rotating shaft 3a rotates.

In the utility model, in order to ensure the strength of the joint of the blade 2 and the rotating shaft 3a, the position of the blade 2 corresponding to the shaft hole is provided with the reinforcing rib 5. In the utility model, in order to conveniently drive the blades 2, the number of the driving devices 3 is two, and the driving devices are symmetrically arranged at two radial sides of the blades 2.

In other specific embodiments, as shown in fig. 1, in order to facilitate connection of the valve body 1 to the main air supply pipe and the branch air supply pipe in the present utility model, the valve body 1 includes a large-caliber section 1a and a small-caliber section 1b which are connected in a smooth transition manner, the large-caliber section 1a is used for connection to the main air supply pipe, and the small-caliber section is used for connection to the branch air supply pipe. The blade 2 is provided at a place where the large diameter section 1a and the small diameter section 1b meet.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

It should be appreciated that the terms "system," "apparatus," "unit," and/or "module," if used herein, are merely one method for distinguishing between different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

If a flowchart is used in the present application, the flowchart is used to describe the operations performed by the system according to embodiments of the present application. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (8)

1. An air quantity regulating valve comprises a through valve body, a blade rotatably arranged in the valve body and a driving device for driving the blade to rotate so as to open the valve body or close the valve body;

the driving device is characterized by comprising a rotating shaft and a rotating handle fixedly connected with the rotating shaft, wherein the rotating shaft rotatably stretches into the valve body and is fixedly connected with the blade, the rotating handle is arranged outside the valve body and comprises a handle body and a driving protruding portion, the driving protruding portion protrudes towards the radial outer side from the handle body, a screw hole is reserved in the driving protruding portion, and after the blade is adjusted in place, a screw is driven into the space between the driving protruding portion and the valve body through the screw hole.

2. The air volume damper according to claim 1, wherein the rotary shaft of the driving device is detachably and fixedly connected to the blade.

3. The air quantity adjusting valve according to claim 2, wherein the vane has a shaft hole adapted to the shape of the rotary shaft of the driving device, and the rotary shaft is inserted into the shaft hole of the vane and fixed by a screw.

4. A blast volume regulating valve according to claim 3, wherein the shaft hole of the vane is a square hole, and one end of the rotating shaft for being matched with the vane is provided with a square head matched with the square hole in shape.

5. A blast volume regulating valve according to claim 3, wherein the vane is provided with a reinforcing rib at a position corresponding to the shaft hole thereof.

6. The air volume damper according to claim 1, wherein the number of the driving devices is two and symmetrically disposed on both radial sides of the vane.

7. A blast volume regulating valve according to any of claims 1-6, wherein the valve body comprises a large caliber section and a small caliber section in smooth transition connection, the large caliber section being used for being connected with a blast main pipe, and the small caliber section being used for being connected with a blast branch pipe.

8. The air quantity adjusting valve according to claim 7, wherein the vane is provided at a place where the large-caliber section and the small-caliber section meet.