Rectangular air volume adjusting valve

Abstract

The utility model discloses a rectangular air volume adjusting valve which comprises a valve body, a plurality of valve plates are rotatably arranged in the valve body through a rotating shaft, and the valve plates are arranged in a lap joint mode. The driving device comprises a first support, a worm and gear mechanism, a connecting rod and a plurality of swing arms, the swing arms are fixedly connected with the ends of the corresponding rotating shafts, the angles of the swing arms are consistent, the swing arms are hinged to the connecting rod, the first support is fixedly arranged on the valve body, the worm and gear mechanism is fixedly arranged on the first support, and the connecting rod is hinged to the connecting rod. And a worm gear of the worm and gear mechanism is fixedly connected with one of the rotating shafts. According to the rectangular air volume adjusting valve, the valve plates are driven to rotate through a worm and gear mechanism, the valve plate which actively rotates drives the other valve plates to rotate through the swing arm and the connecting rod in the rotating process, opening and closing are achieved, the valve plates are arranged in a lap joint mode after being closed, gaps between the valve plates are shielded, and the air tightness of the valve plates is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a rectangular air volume regulating valve. Background Art

[0002] In modern buildings and industrial production environments, efficient ventilation systems are crucial for ensuring indoor air quality, controlling energy consumption, and maintaining a safe working environment. As a key component in ventilation systems, air flow control valves control the flow of air through the ductwork, thereby effectively managing the indoor environment.

[0003] Due to their structural design and technical limitations, traditional air volume control valves often suffer from insufficient airtightness in practical applications, resulting in unnecessary energy waste and reduced ventilation efficiency. With technological advancements, the market demand for air volume control valves with higher precision, greater reliability, and easier maintenance is growing. Utility Model Content

[0004] The present application provides a rectangular air volume regulating valve, which solves the technical problem of insufficient air tightness of the air volume regulating valve in the prior art.

[0005] The present application provides a rectangular air volume regulating valve, comprising:

[0006] A valve body, wherein a plurality of valve plates are arranged in a overlapping manner via a rotating shaft.

[0007] The driving device includes a first bracket, a worm gear mechanism, a connecting rod and several swing arms, the swing arms are fixedly connected to the corresponding rotating shaft ends, the angles of the swing arms are consistent, the swing arms are hinged to the connecting rod, the first bracket is fixedly set on the valve body, the worm gear mechanism is fixedly set on the first bracket, and the worm wheel of the worm gear mechanism is fixedly connected to one of the rotating shafts.

[0008] In some embodiments, the inner cavity of the valve body is square, and the valve plate is operable to block the inner cavity of the valve body.

[0009] In some embodiments, the number of the valve plates is an odd number.

[0010] In some embodiments, the worm wheel of the worm gear mechanism is fixedly connected to the rotating shaft at the middle position.

[0011] In some embodiments, baffles are fixedly provided on both sides of the inner wall of the valve body corresponding to the valve plate in the closed state, and the baffles are located on both sides of the rotating shaft and on both sides of the valve plate.

[0012] In some embodiments, the valve plates are located on the same plane in a closed state, and sealing strips are fixedly provided on the ends of the valve plates, and the sealing strips are operably pressed against the edges of adjacent valve plates.

[0013] In some embodiments, a flexible windshield is provided at the position of the valve plate corresponding to the rotating shaft, one end of the windshield is fixedly connected to the valve plate, and the other end of the windshield is fixedly connected to the valve body.

[0014] In some embodiments, a second bracket is fixedly provided on the valve body corresponding to each of the rotating shafts, and the rotating shaft and the second bracket are rotatably connected via a bearing.

[0015] The beneficial effects of this application are as follows:

[0016] The rectangular air volume regulating valve provided by the utility model drives the valve plate to rotate through a worm gear mechanism. The actively rotating valve plate drives the other valve plates to rotate through a swing arm and a connecting rod during the rotation process to achieve opening and closing. After the valve plates are closed, they are overlapped to block the gaps between the valve plates, thereby improving the air tightness of the valve plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of a rectangular air volume control valve embodiment 1 provided in this application;

[0019] Figure 2 This is a schematic diagram of the overall structure of Example 2 of a rectangular air volume control valve provided in this application.

[0020] Among them, 1-valve body; 2-valve plate; 3-first bracket; 4-worm gear mechanism; 5-connecting rod; 6-swing arm; 7-gear bar; 8-sealing strip; 9-wind shield; 10-second bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0024] The embodiment of the present application solves the technical problem of insufficient air tightness of air volume regulating valves in the prior art by providing a rectangular air volume regulating valve.

[0025] The technical solution in the embodiments of the present application is to solve the above technical problems, and the overall idea is as follows:

[0026] Example 1

[0027] like Figure 1 As shown, the present application provides a rectangular air volume regulating valve, comprising:

[0028] A valve body 1, wherein a plurality of valve plates 2 are arranged in a lap-connected arrangement within the valve body 1 via a rotating shaft;

[0029] The driving device includes a first bracket 3, a worm gear mechanism 4, a connecting rod 5 and several swing arms 6. The swing arms 6 are fixedly connected to the corresponding ends of the rotating shafts. The angles of the swing arms 6 are consistent. The swing arms 6 are hinged to the connecting rod 5. The first bracket 3 is fixedly set on the valve body 1. The worm gear mechanism 4 is fixedly set on the first bracket 3. The worm wheel of the worm gear mechanism 4 is fixedly connected to one of the rotating shafts.

[0030] The valve plates 2 are driven to rotate by the worm gear mechanism 4. The actively rotating valve plate 2 drives the other valve plates 2 to rotate through the swing arm 6 and the connecting rod 5 during the rotation process to achieve opening and closing. After the valve plates 2 are closed, they are overlapped to block the gaps between the valve plates 2, thereby improving the air tightness of the valve plates 2.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Specifically, the inner cavity of the valve body 1 is square, and the valve plate 2 can be operated to seal the inner cavity of the valve body 1. After multiple square valve plates 2 are closed, the square inner cavity can be sealed. The number of valve plates 2 is an odd number. Preferably, the turbine of the worm gear mechanism 4 is fixedly set on the rotating shaft of the middle valve plate 2 to make the structural layout more reasonable.

[0033] Preferably, baffles 7 are fixedly provided on both sides of the inner wall of the valve body 1 corresponding to the valve plate 2 in the closed state. The baffles 7 are located on both sides of the rotating shaft and on both sides of the valve plate 2. When the valve plate 2 is closed, the valve plate 2 is parallel to the end face of the valve body 1, and the valve plate 2 is just limited by the baffles 7 to prevent the valve plate 2 from being deformed by the airflow in the valve body 1 and causing air leakage.

[0034] Preferably, the valve plates 2 are located on the same plane in the closed state. When the valve plates 2 are closed, there is only a gap between the valve plates 2. Then, a sealing strip 8 is fixedly provided at the end of the valve plates 2. The sealing strip 8 can be operably pressed on the edge of the adjacent valve plates 2 so that the sealing strip 8 seals the gap between the valve plates 2, further improving the sealing effect between the valve plates 2. The sealing strip 8 can be an elastic sealing rubber, or a metal plate, and a sealing gasket can be provided on the end face of the metal plate.

[0035] Example 2

[0036] Further, such as Figure 2 As shown, a flexible windshield 9 is provided at the rotating shaft corresponding to the valve plate 2, one end of the windshield 9 is fixedly connected to the valve plate 2, and the other end of the windshield 9 is fixedly connected to the valve body 1. The windshield 9 blocks the rotating shaft of the valve plate 2 and the valve body 1, reducing the impact of the airflow on this position and achieving a sealing effect. The windshield 9 is made of a flexible material such as a film or rubber. During the rotation of the valve plate, the windshield will bend without affecting the rotation of the valve plate.

[0037] Preferably, a second bracket 10 is fixedly provided at each of the rotating shafts of the valve body 1, and the rotating shaft and the second bracket 10 are rotatably connected via a bearing. Since the rotating shaft extends out of the valve body 1, the second bracket 10 can provide supporting force to the rotating shaft to prevent the rotating shaft from rotating poorly.

[0038] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0039] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A rectangular air volume regulating valve, characterized in that: include: A valve body, wherein a plurality of valve plates are arranged in a overlapping manner via a rotating shaft. The driving device includes a first bracket, a worm gear mechanism, a connecting rod and several swing arms, the swing arms are fixedly connected to the corresponding rotating shaft ends, the angles of the swing arms are consistent, the swing arms are hinged to the connecting rod, the first bracket is fixedly set on the valve body, the worm gear mechanism is fixedly set on the first bracket, and the worm wheel of the worm gear mechanism is fixedly connected to one of the rotating shafts.

2. The rectangular air volume regulating valve according to claim 1, characterized in that: The inner cavity of the valve body is square, and the valve plate is operable to block the inner cavity of the valve body.

3. The rectangular air volume regulating valve according to claim 1, characterized in that: The number of the valve plates is an odd number.

4. The rectangular air volume regulating valve according to claim 1, characterized in that: The worm wheel of the worm gear mechanism is fixedly connected to the rotating shaft at the middle position.

5. The rectangular air volume regulating valve according to claim 1, characterized in that: Baffles are fixedly provided on both sides of the inner wall of the valve body corresponding to the valve plate in the closed state, and the baffles are located on both sides of the rotating shaft and on both sides of the valve plate.

6. The rectangular air volume regulating valve according to claim 1, characterized in that: The valve plates are located on the same plane in a closed state. Sealing strips are fixedly provided at the ends of the valve plates. The sealing strips can be operably pressed against the edges of the adjacent valve plates.

7. The rectangular air volume regulating valve according to claim 1, characterized in that: A flexible windshield is provided at the position of the valve plate corresponding to the rotating shaft. One end of the windshield is fixedly connected to the valve plate, and the other end of the windshield is fixedly connected to the valve body.

8. The rectangular air volume regulating valve according to claim 1, characterized in that: A second bracket is fixedly provided on the valve body corresponding to each rotating shaft, and the rotating shaft and the second bracket are rotatably connected via a bearing.

Images