A wind valve structure

Abstract

The utility model discloses a kind of air valve structures, including including valve body and the multiple blades of rotation setting in valve body, the valve body is enclosed by two first U-shaped plates and two second U-shaped plates and forms hollow rectangle, wherein two the first U-shaped plate is opposite side each other, two second U-shaped plate are uniformly rotationally connected with corresponding pivot, the blade is connected between two opposite pivots by bolt, adjacent the baffle between the blade is uniformly set, when the blade rotates to fixed angle, the two sides of the blade width direction and the corresponding side of adjacent the baffle are inlaid, the valve body is also provided with the drive assembly for controlling blade rotation, cooperate by baffle and blade, so that blade does not need to rotate 90 degrees, the side of blade can be inlaid with baffle and realize closure to cut off airflow, the rotation angle of blade is less in whole process, use time is less, can realize fast response.

Description

Technical Field

[0001] This utility model relates to the field of air valve technology, specifically an air valve structure. Background Technology

[0002] Air dampers are important control components in ventilation, air conditioning, fire protection, and air handling systems. They use actuators to control the rotation of blades to regulate, cut off, or guide airflow. A typical air damper requires the blades to rotate 90° from fully open to fully closed, and most actuators take 90 seconds to control the blades to rotate 90°. However, some places or scenarios require air dampers to close more quickly. Therefore, there is a need for an actuator that allows air dampers to open and close faster while using the same actuator. Utility Model Content

[0003] Based on the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a wind valve structure.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a wind valve structure, including a valve body and a plurality of blades rotatably disposed in the valve body. The valve body is formed into a hollow rectangle by two first U-shaped plates and two second U-shaped plates, wherein the two first U-shaped plates are opposite sides of each other, and each of the two second U-shaped plates is rotatably connected to a corresponding rotating shaft. The blades are bolted between the two opposite rotating shafts, and a baffle is provided between adjacent blades. When the blade rotates to a fixed angle, the two sides of the blade in the width direction are in contact with the corresponding sides of the adjacent baffle. The valve body is also provided with a drive assembly for controlling the rotation of the blades.

[0005] Furthermore, the drive assembly includes an actuator, cranks, and connecting rods. Several cranks are located on one side of the valve body and are connected to the rotating shafts one by one. The cranks are oriented in the same direction and are connected by connecting rods. The actuator is used to drive one of the rotating shafts to rotate.

[0006] Furthermore, the blade is recessed on one side of its thickness direction at its rotation axis to form a groove with a continuous curved profile, and one side of the rotating shaft is embedded in the groove and fixed by bolts.

[0007] Furthermore, a first folding plate is provided on both sides of the blade in the width direction, and one side of the baffle in the width direction is folded outward to form a second folding plate that contacts the surface of the first folding plate. The side of the second folding plate away from the baffle is folded outward to form a third folding plate that contacts the surface of the blade.

[0008] Furthermore, the blade is integrally formed with the first folding plate, the baffle, the second folding plate and the third folding plate are integrally formed, and a sealing strip is provided on the surface of the third folding plate that contacts the blade.

[0009] Furthermore, the first U-shaped plate has integrally formed connecting plates on both sides along its length that fit into the second U-shaped plate, and the connecting plates are connected to the second U-shaped plate by bolts and nuts.

[0010] Furthermore, the two first U-shaped plates are connected by a mounting plate, which is located on both sides of the first U-shaped plate along its length and is in contact with the inner side of the second U-shaped plate.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: by cooperating with the baffle and the blade, the blade does not need to rotate 90 degrees, and the side of the blade can fit with the baffle to achieve a seal and cut off the airflow. The entire process involves less rotation angle of the blade and less time. In the event of a fire, the air valve can be closed quickly to suppress the fire and protect the lives and property of people. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] In the picture: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention for removing the valve body; Figure 3 yes Figure 2 Enlarged diagram of point A in the diagram; Figure 4 This is a schematic diagram of the valve body in this utility model; In the picture: 1. Valve body; 11. First U-shaped plate; 12. Second U-shaped plate; 13. Mounting plate; 2. Blade; 21. Groove; 22. First folding plate; 3. Baffle; 31. Second folding plate; 32. Third folding plate; 4. Shaft; 5. Crank; 6. Connecting rod; 7. Actuator. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0015] Please see Figure 1-4The present invention provides a technical solution: a wind valve structure, including a valve body 1 and a plurality of blades 2 rotatably disposed within the valve body 1. The valve body 1 is formed into a hollow rectangle by two first U-shaped plates 11 and two second U-shaped plates 12, wherein the two first U-shaped plates 11 are opposite sides of each other, and each of the two second U-shaped plates 12 is rotatably connected to a corresponding rotating shaft 4. The blades 2 are bolted between the two opposite rotating shafts 4, and a baffle 3 is provided between adjacent blades 2. When the blade 2 rotates to a fixed angle, the two sides of the blade 2 in the width direction are in contact with the corresponding sides of the adjacent baffle 3. The valve body 1 is also provided with a drive assembly for controlling the rotation of the blades 2.

[0016] The valve body 1 is composed of two first U-shaped plates 11 and two second U-shaped plates 12 forming a rectangular frame. Its structure provides good support and is suitable for most scenarios. The valve opens and closes by driving the rotating shaft 4 and blades 2 through a drive assembly. When the blades 2 rotate at 0 degrees, the valve is fully open (i.e., when the air intake area is at its maximum). When the valve needs to be closed, the drive assembly rotates the blades 2 by n degrees (90 > n > 0). At this time, the side of the blades 2 fits against the baffle 3. The blades 2 and valve body 1 together form a baffle, preventing airflow through the valve. This differs from traditional valves (i.e., those without baffles). Compared to baffle 3), the damper of this application takes less time to switch from a fully open state to a fully closed state. In special circumstances such as fire, it can quickly close the damper to protect life and property. At the same time, for the same actuator 7, the time taken to rotate the same angle is the same. However, different customers have different requirements for the switching time of opening and closing the damper according to different needs. By adding baffle 3, the switching time of opening and closing the damper under the same conditions can also be reduced. Customer needs can be met without replacing other parts, and there is no need to purchase a faster actuator 7, thus reducing costs.

[0017] The drive assembly includes an actuator 7, cranks 5 and connecting rods 6. Several cranks 5 are located on one side of the valve body 1 and are connected to the rotating shaft 4 one by one. Several cranks 5 face the same direction and are connected by the connecting rods 6. The actuator 7 is used to drive one of the rotating shafts 4 to rotate. The actuator 7 is an electric actuator 7, which drives one of the rotating shafts 4 to rotate. One side of the crank 5 is fixedly connected to the rotating shaft 4, and the other side extends outward to form a connecting rod. The connecting rod is not coaxial with the rotating shaft 4. The connecting rod passes through the connecting rod 6, which causes all the cranks 5 to rotate together at the same angle, thereby controlling all the blades 2 to rotate synchronously.

[0018] The blade 2 is recessed on one side of its thickness direction at its rotation axis to form a groove 21 with a continuous curved profile. The rotating shaft 4 has a through hole that passes through its radial direction and the thickness direction of the blade 2. The rotating shaft 4 and the blade 2 are fixed by passing a bolt through the through hole and tightening it with a nut.

[0019] The blade 2 has a first folding plate 22 that folds outward on both sides in the width direction. The baffle 3 has one side folded outward in the width direction to form a second folding plate 31 that contacts the surface of the first folding plate 22. The side of the second folding plate 31 that is away from the baffle 3 folds outward to form a third folding plate 32 that contacts the surface of the blade 2. The second folding plate 31 and the third folding plate 32 are provided on the inner side of the second U-shaped plate 12 so that the two inner sides of the air valve can also play a good sealing role.

[0020] By bonding the third fold plate 32 with the blade 2, and bonding the first fold plate 22 with the second fold plate 31, the line bonding is transformed into surface bonding, which increases the bonding area, reduces pressure, and prevents damage to the blade 2. The included angle between the second fold plate 31 and the third fold plate 32 is equal to the included angle between the blade 2 and the first fold plate 22. This method further increases the bonding surface, and the two bonding surfaces can effectively prevent the sealing effect from being lost due to errors or damage to some of the fold plates.

[0021] The blade 2 is integrally formed with the first folding plate 22, the baffle 3, the second folding plate 31 and the third folding plate 32 are integrally formed, and a sealing strip is provided on the surface of the third folding plate 32 that contacts the blade 2. One-piece molding can increase overall strength and reduce welding steps. The sealing strip can increase the sealing effect and also play a buffer role to prevent the blade 2 from bending and deforming due to excessive rotation angle.

[0022] The first U-shaped plate 11 has integrally formed connecting plates on both sides along its length direction that fit with the second U-shaped plate 12. The connecting plates are connected to the second U-shaped plate 12 by bolts and nuts. The two first U-shaped plates 11 are connected by a mounting plate 13. The mounting plate 13 is located on both sides along the length direction of the first U-shaped plate 11 and fits with the inner side of the second U-shaped plate 12. Two opposing first U-shaped plates 11 are connected by mounting plate 13. The mounting portions on both sides of mounting plate 13 are parallel to each other to ensure the parallelism between the two first U-shaped plates 11. Mounting plate 13 is attached to the inner side of second U-shaped plate 12 to ensure that the first U-shaped plate 11 and the second U-shaped plate 12 are perpendicular to each other. The second folding plate 31 and the third folding plate 32 on the inner side of the second U-shaped plate 12 are integrally formed with mounting plate 13.

[0023] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A damper structure, characterized in that: The valve body includes a valve body and multiple blades rotatably disposed within the valve body. The valve body is formed by two first U-shaped plates and two second U-shaped plates to create a hollow rectangular shape. The two first U-shaped plates are opposite sides of each other, and each of the two second U-shaped plates is rotatably connected to a corresponding rotating shaft. The blades are bolted between the two opposite rotating shafts, and baffles are provided between adjacent blades. When a blade rotates to a fixed angle, the two sides of the blade in the width direction are in contact with the corresponding sides of the adjacent baffles. The valve body is also provided with a drive assembly for controlling the rotation of the blades.

2. The damper structure according to claim 1, characterized in that: The drive assembly includes an actuator, cranks, and connecting rods. Several cranks are located on one side of the valve body and are connected to the rotating shafts one by one. Several cranks face the same direction and are connected by connecting rods. The actuator is used to drive one of the rotating shafts to rotate.

3. The damper structure according to claim 1, characterized in that: The blade is recessed on one side of its thickness direction at its axis of rotation to form a groove with a continuous curved profile, and one side of the shaft is embedded in the groove and fixed by bolts.

4. The damper structure according to claim 1, characterized in that: The blade has a first folding plate that folds outward on both sides in the width direction. One side of the baffle folds outward to form a second folding plate that contacts the surface of the first folding plate. The side of the second folding plate that is away from the baffle folds outward to form a third folding plate that contacts the surface of the blade.

5. The air valve structure according to claim 4, characterized in that: The blade is integrally formed with the first folding plate, and the baffle, the second folding plate and the third folding plate are integrally formed. A sealing strip is provided on the surface of the third folding plate that contacts the blade.

6. The damper structure according to claim 1, characterized in that: The first U-shaped plate has integrally formed connecting plates on both sides along its length that fit into the second U-shaped plate. The connecting plates are connected to the second U-shaped plate by bolts and nuts.

7. The damper structure according to claim 1, characterized in that: The two first U-shaped plates are connected by a mounting plate, which is located on both sides of the first U-shaped plate along its length and is in contact with the inner side of the second U-shaped plate.

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