Novel air valve

Abstract

The utility model discloses a novel air valve. A square frame of the novel air valve is composed of two side plates and two end plates. Side edge U-shaped bends and end bends are arranged on the side plates, and vertical U-shaped bends are arranged on the end plates; the end part bend is attached to the plate body of the end plate and is fixed with the plate body through a rivet or a screw; the structure is simple to form, can be formed through existing bending equipment, and can be obtained in a manner of purchasing a profile and cutting the profile; a sealing supporting plate and fan blades are arranged on the inner side face of the end plate. L-shaped plates are arranged on the inner side faces of the side plates, the elastic sealing pieces are fixed through the L-shaped plates, the portions, making contact with the fan blades, of the elastic sealing pieces are of a Z-shaped structure, and the structure has the elastic sealing function. The top face of the sealing supporting plate is wrapped with an elastic piece, a gap and a buffering pad are arranged between the elastic piece and the top face of the sealing supporting plate, and elastic buffering and muting can be achieved when the bottoms of the fan blades make extrusion contact with the top face of the elastic piece.

Description

Technical Field

[0001] This utility model belongs to the field of air valve technology, and specifically relates to a novel air valve with a simplified structure. Background Technology

[0002] In existing industrial air valve products, the basic structure consists of a square or circular frame with multiple fan blades inside. Driving one of the fan blades causes the entire valve to oscillate. The multiple fan blades are connected by hinges to achieve linkage between them. This type of air valve structure can be referenced in patent publication CN107631081A, which uses a riveted frame to fix the fan blades inside the frame to control airflow.

[0003] The current technical problems are: 1. The frame of this type of air valve is composed of multiple parts, which requires multiple riveting points on the sides during manufacturing. Furthermore, the quadrilateral frame is slow to form, affecting the production schedule; 2. Those skilled in the art have attempted to use a four-sided frame roll forming, but in small-batch production, the cost of making such a mold alone far exceeds the actual profit margin; 3. The sealing structure inside the air valve is simple and has poor sealing effect. How to improve the sealing performance without increasing the manufacturing cost is also a technical problem directly addressed by this technical solution.

[0004] To address the above drawbacks, the technical problems that urgently need to be solved by those skilled in the art are: to improve the structure of the air valve by adopting a profile or sheet metal bending structure and achieving quick connection through screws, thereby improving production efficiency without increasing costs; and to redesign its sealing structure to improve its noise reduction effect without increasing costs and while maintaining a good sealing effect. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, this utility model proposes a new type of air valve, which improves the outer frame structure and sealing structure of the air valve by adopting a four-sided frame combination structure, achieving high assembly efficiency, good assembly strength and silent sealing without increasing manufacturing costs.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A novel air valve includes a square frame, which is composed of two side plates and two end plates; the side plates are provided with side U-shaped bends and end bends, and the end plates are provided with vertical U-shaped bends; the end bends are fitted to the plate body of the end plates and fixed between the two by rivets or screws.

[0008] A sealing support plate is provided on the inner side of the end plate, and a fan blade is fixed on the sealing support plate by a hinge shaft. The fan blade is connected to a control component on the outer side of the end plate.

[0009] The control component is an automatic controller, a manual controller, or a combination of manual and automatic controllers;

[0010] An L-plate is provided on the inner side of the side plate to fix the elastic sealing sheet. The part of the elastic sealing sheet that contacts the fan blade has a Z-shaped structure.

[0011] An elastic sheet is provided on the top surface of the sealing support plate, and a gap is provided between the elastic sheet and the top surface of the sealing support plate; the bottom of the fan blade is pressed into contact with the top surface of the elastic sheet.

[0012] The sealing support plate has an clearance groove on its top surface, a buffer pad is provided in the clearance groove, and the elastic sheet is provided above the buffer pad.

[0013] The elastic sheet is U-shaped, and its left and right sides are glued or riveted to the sealing support plate to form a whole.

[0014] The top surface of the elastic sheet is an arc-shaped structure, with its thickness in the middle being greater than that on both sides. When the top surface of the elastic sheet is compressed and deformed, the part of the elastic sheet that contacts the fan blade is subjected to force, and the entire middle area of ​​the elastic sheet is pressed down and squeezed with the buffer pad to achieve sealing and noise reduction. After testing and verification, this structure has better noise reduction and sealing effects.

[0015] This utility model has the following beneficial effects: The square frame of this utility model is composed of two side plates and two end plates; the side plates are provided with side U-shaped bends and end bends, and the end plates are provided with vertical U-shaped bends; the end bends fit the plate body of the end plates and are fixed between the two by rivets or screws; the above structure is simple to form and can be formed by existing bending equipment, or by purchasing profiles and cutting the above structure; a sealing support plate and a fan blade are provided on the inner side of the end plates; an L-plate is provided on the inner side of the side plates, and the elastic sealing sheet is fixed by the L-plate. The part of the elastic sealing sheet that contacts the fan blade has a Z-shaped structure, which has an elastic sealing effect;

[0016] An elastic sheet is covered on the top surface of the sealing support plate. A gap and a buffer pad are provided between the elastic sheet and the top surface of the sealing support plate. When the bottom of the fan blade is pressed and contacted with the top surface of the elastic sheet, elastic buffering and noise reduction can be achieved. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of the present invention. Figure I ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure II ;

[0020] Figure 3 This is a side view of the internal structure of this utility model;

[0021] Figure 4 This is a top view of the internal structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the side panel structure;

[0023] Figure 6 This is a schematic diagram of the end plate structure;

[0024] Figure 7 for Figure 3 Enlarged schematic diagram of the structure of region A in the middle;

[0025] Figure 8 for Figure 4 Enlarged schematic diagram of the structure of region B in the middle;

[0026] In the diagram, 1. Side plate, 11. Side U-shaped bend, 12. End bend, 2. End plate, 21. Vertical U-shaped bend, 3. Fan blade, 4. Control components, 41. Fixing plate, 5. Sealing support plate, 51. Locking edge, 52. Clearance groove, 53. Buffer pad, 6. Elastic sheet, 61. Side, 62. Top surface, 63. Adhesive layer, 7. L-plate, 8. Elastic sealing sheet, 81. Fixing edge, 82. Z-shaped area. Detailed Implementation

[0027] The present invention will be further described below through embodiments, and those skilled in the art can refer to the embodiments for implementation.

[0028] As attached Figure 1 As shown, a novel air valve includes a square frame, which is composed of two side plates 1 and two end plates 2. The key design feature of this invention is that the side plates 1 are provided with side U-shaped bends 11 and end bends 12; the end plates 2 are provided with vertical U-shaped bends 21. The side plates 1 and end plates 2 can be formed by punching, or they can be made by purchasing integrally formed profiles, cutting and drilling them for later use.

[0029] The end bend 12 is attached to the plate body of the end plate 2 and fixed between the two by rivets or screws; in this embodiment, screws are used to lock the two together, which is convenient and quick and can reduce manufacturing costs and improve molding efficiency.

[0030] A sealing support plate 5 is provided on the inner side of the end plate 2. A fan blade 3 is fixed on the sealing support plate 5 by a hinge shaft. The fan blade 3 is connected to the control component 4 on the outer side of the end plate 2. The control component is an automatic controller, a manual controller, or a manual-automatic integrated controller. In this embodiment, a manual-automatic integrated controller is selected.

[0031] The sealing structure of this utility model is as follows: an L-plate 7 is fixedly installed on the inner side of the side plate 1 by screws, and the elastic sealing sheet 8 is fixed by the L-plate 7. Figure 8 As shown, the elastic sealing sheet 8 includes a fixed edge 81 and a Z-shaped area 82. The elastic sealing sheet 8 is formed by bending an elastic steel sheet. It is fixed to the L plate 7 by pasting or riveting through the fixed edge 81. The Z-shaped area 82 makes elastic compression contact with the fan blade 3. When the fan blade 3 is pressed against the Z-shaped area 82, the left and right sides of the inside of the new type of air valve can be sealed through the rebound compression of the Z-shaped area 82.

[0032] An elastic sheet 6 is provided on the top surface of the sealing support plate 5, and a gap is provided between the elastic sheet 6 and the top surface of the sealing support plate 5; when the bottom of the fan blade 3 is pressed into contact with the top surface of the elastic sheet 6, a seal is achieved.

[0033] Furthermore, a clearance groove 52 is provided on the top surface of the sealing support plate 5, and a buffer pad 53 is provided inside the clearance groove 52. This buffer pad 53 can be connected to the sealing support plate 5 by adhesive bonding. The elastic sheet 6 is located above the buffer pad 53. The elastic sheet 6 has a U-shaped structure, and its left and right sides are glued or riveted to the sealing support plate 5 for fixation. This fixing method is simple and convenient for assembly.

[0034] Furthermore, the top surface of the elastic sheet 6 has an arc-shaped structure, such as... Figure 8 As shown, the thickness in the middle is greater than the thickness on both sides; when the top surface of the elastic sheet is compressed and deformed, the part of the elastic sheet 6 that contacts the fan blade 3 is subjected to force, and the entire middle area of ​​the elastic sheet 6 is pressed down and squeezed with the buffer pad to achieve sealing and noise reduction. After testing and verification, this structure has better noise reduction and sealing effect.

[0035] In summary, the square frame of this utility model is simplified to two side plates 1 and two end plates 2; the side plates 1 are provided with side U-shaped bends 11 and end bends 12, and the end plates are provided with vertical U-shaped bends 21. The above structure can be formed by existing bending equipment, or by purchasing profiles and cutting them; the inner side of the end plates 2 is provided with a sealing support plate 5 and a fan blade 3; the inner side of the side plates 1 is provided with an L-plate 7, which fixes the elastic sealing sheet 8. The part of the elastic sealing sheet 8 that contacts the fan blade 3 has a Z-shaped structure, which has an elastic sealing function.

[0036] An elastic sheet 6 is provided on the top surface of the sealing support plate 5. A gap and a buffer pad 53 are provided between the elastic sheet 6 and the top surface of the sealing support plate 5. When the bottom of the fan blade 3 is pressed and contacted with the top surface of the elastic sheet 6, elastic buffering and noise reduction can be achieved.

[0037] This utility model has a simplified structure and the separate parts are easy to manufacture and assemble. It has high molding efficiency and can effectively improve the production progress. The side plate 1, end plate 2, sealing support plate 5 and L plate 7 do not require molding molds, making them simple to manufacture and easy to form. The sealing structure inside the air valve is simple and has a good sealing effect, which can improve the sealing performance without increasing the manufacturing cost.

Claims

1. A novel air valve, characterized in that: It includes a square frame, which consists of two side plates and two end plates; the side plates are provided with side U-shaped bends and end bends, and the end plates are provided with vertical U-shaped bends; the end bends fit against the plate body of the end plates and are fixed between the two by rivets or screws. A sealing support plate is provided on the inner side of the end plate, and a fan blade is fixed on the sealing support plate by a hinge shaft. The fan blade is connected to a control component on the outer side of the end plate. An L-plate is provided on the inner side of the side plate to fix the elastic sealing sheet. The part of the elastic sealing sheet that contacts the fan blade has a Z-shaped structure. An elastic sheet is provided on the top surface of the sealing support plate, and a gap is provided between the elastic sheet and the top surface of the sealing support plate; the bottom of the fan blade is pressed into contact with the top surface of the elastic sheet.

2. The novel air valve as described in claim 1, characterized in that: The sealing support plate has an clearance groove on its top surface, a buffer pad is provided in the clearance groove, and the elastic sheet is provided above the buffer pad.

3. The novel air valve as described in claim 1, characterized in that: The elastic sheet is U-shaped, and its left and right sides are glued or riveted to the sealing support plate to form a whole.

4. A novel air valve as described in claim 3, characterized in that: The top surface of the elastic sheet has an arc-shaped structure, with its thickness in the middle being greater than that on both sides.

5. A novel air valve as described in claim 1, characterized in that: The control component is an automatic controller, a manual controller, or a combination of manual and automatic controller.

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