Return air adjusting air valve assembly

Abstract

The utility model relates to the technical field of air valves, in particular to a return air adjusting air valve assembly which comprises a return air adjusting air valve round frame, connecting plates are arranged on the periphery of the outer wall of the return air adjusting air valve round frame, second clamping rods are arranged in the middles of the connecting plates through bearings, and air valve blades are clamped and embedded in one ends of the second clamping rods. According to the return air adjusting air valve assembly, the rotary valve is rotated to drive the air valve blades to turn over through rotation of the second clamping rod, the first clamping rod and the adjusting rod, so that the air return angle of the air valve blades is adjusted conveniently, the first clamping rod is clamped to one ends of the air valve blades, and the second clamping rod is correspondingly clamped to the other ends of the air valve blades; and the threaded sleeve block penetrates through the protection disc to be clamped in the upper side of the return air adjusting air valve round frame, a dustproof net is conveniently installed on the return air adjusting air valve round frame, and the dustproof effect is achieved through the dustproof net.

Description

Technical Field

[0001] This utility model relates to the field of air valve technology, and in particular to a return air regulating air valve assembly. Background Technology

[0002] Electric air valves are used in ventilation and environmental protection projects in industries such as hardware, chemicals, building materials, power plants, and glass, as devices to regulate or cut off the flow of gas media in dusty cold or hot air ducts.

[0003] A patent with publication number CN208652853U discloses a damper device for a cold wall. This patent includes a frame, a louver assembly, a connecting rod, and a connecting rod adjustment mechanism. The louver assembly comprises multiple damper blades; each damper blade is connected to the left and right sides of the frame, and the blades are rotatable. The multiple damper blades are arranged horizontally side-by-side; the installation interval between adjacent damper blades is less than the width of a single blade, and the blades are symmetrically airfoil-shaped. The connecting rod is connected to one side of the louver assembly and to each damper blade. The connecting rod adjustment mechanism is located on the frame, on the same side as the connecting rod. The mechanism is connected to the connecting rod and adjusts the angle of the damper blades. When the damper device is open, ventilation is smooth, air resistance is low, and the refrigeration unit's fan can save power. When closed, the damper device effectively prevents backflow. However, this patent also has the following problems:

[0004] The aforementioned air valve adjusts the angle of the louvers to regulate the return air pressure. However, the stability after adjustment is poor, which may cause the air valve blades to move, thus affecting the return air regulation effect. Furthermore, the lack of a dust screen may result in a large amount of dust clogging the air valve blades.

[0005] To address the above issues, a return air regulating damper assembly needs to be designed to overcome them. Utility Model Content

[0006] The main objective of this invention is to provide a return air regulating valve assembly that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A return air regulating damper assembly includes a circular frame for the return air regulating damper. Connecting plates are arranged around the outer wall of the circular frame. A second locking rod is mounted on the middle of the connecting plate via a bearing. One end of the second locking rod is fitted with a damper blade, and the other end of the second locking rod is fitted with an adjusting plate. An adjusting rod is connected to the middle of the adjusting plate via a rotating shaft. A first locking rod is fitted on the other end of the damper blade. A support block is mounted on one end of the first locking rod. Several sets of second locking rods and several sets of adjusting rods and adjusting plates are provided, and these sets of adjusting plates and adjusting rods are interconnected. A rotary valve is mounted on one end of one set of second locking rods.

[0009] As a preferred embodiment of this utility model, the upper side of the circular frame of the return air regulating valve is provided with limit holes, and a protruding locking block is embedded inside the limit hole. A spring is provided at one end of the protruding locking block, and a threaded sleeve is provided at the other end of the spring. A limit block is provided at one end of the threaded sleeve. A protective disc is installed on the upper side of the circular frame of the return air regulating valve. The protective disc is provided with mounting holes around its circumference, and a dustproof net is provided in the middle of the protective disc.

[0010] As a preferred embodiment of this utility model, the connecting plate is fixedly installed between the circular frame of the return air regulating valve, and the connecting block with bearing is detachably installed between the connecting plate and the connecting plate.

[0011] As a preferred embodiment of this utility model, the second clamp is rotatably connected to the connecting block with the bearing, the second clamp is engaged with the air valve blade, the first clamp is engaged with the air valve blade, and the first clamp is rotatably connected to the support block.

[0012] As a preferred embodiment of this utility model, the support block and the return air regulating valve frame are detachably installed, the second clamp rod is fixedly connected to the adjusting plate, and the adjusting plate and the adjusting rod are rotatably connected by a rotating shaft.

[0013] As a preferred embodiment of this utility model, the dustproof net is fixedly installed between the protective disc and the protective disc, the return air regulating valve frame is detachably installed between the protective disc and the return air regulating valve frame, and the limiting block is fixedly connected to the threaded sleeve block.

[0014] As a preferred embodiment of this utility model, the threaded sleeve is fixedly connected to the spring, the spring is fixedly connected to the protruding locking block, the protruding locking block is engaged with the limiting hole, and the threaded sleeve is threadedly connected to the limiting hole.

[0015] Beneficial effects

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this utility model, a return air regulating valve assembly is designed. By rotating the rotary valve, the valve blades are rotated through the second locking rod, the first locking rod, and the adjusting rod, thereby facilitating the adjustment of the return air angle of the valve blades. The first locking rod is locked at one end of the valve blades, and the second locking rod is locked at the other end of the valve blades, which facilitates the stability of the valve blades.

[0018] 2. In this utility model, a return air regulating valve assembly is designed, in which a threaded sleeve block passes through the protective disc and is locked inside the upper side of the return air regulating valve frame, making it easy to install a dustproof net on the return air regulating valve frame, and the dustproof net achieves a dustproof effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the circular frame and valve blades of the return air regulating valve of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the second locking rod and the adjusting rod of this utility model.

[0021] In the diagram: 1. Return air regulating valve circular frame; 2. Limiting hole; 3. Valve blade; 4. Support block; 5. First locking rod; 6. Second locking rod; 7. Connecting plate; 8. Protective disc; 9. Mounting hole; 10. Dustproof net; 11. Limiting block; 12. Threaded sleeve block; 13. Spring; 14. Protruding locking block; 15. Connecting block with bearing; 16. Adjusting plate; 17. Adjusting rod; 18. Rotary valve. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-2 As shown, a return air regulating damper assembly includes a return air regulating damper circular frame 1. Connecting plates 7 are arranged around the outer wall of the return air regulating damper circular frame 1. A second locking rod 6 is mounted on the middle of the connecting plate 7 via a bearing. One end of the second locking rod 6 is fitted with a damper blade 3, and the other end of the second locking rod 6 is fitted with an adjusting plate 16. An adjusting rod 17 is connected to the middle of the adjusting plate 16 via a rotating shaft. The other end of the damper blade 3 is fitted with a first locking rod 5. One end of the first locking rod 5 is fitted with a support block 4. Several sets of second locking rods 6 are provided. Several sets of adjusting rods 17 and adjusting plates 16 are also provided, and these sets of adjusting plates 16 and adjusting rods 17 are interconnected. A rotary valve 18 is provided at one end of one set of second locking rods 6.

[0024] Please see the appendix Figure 1 and attached Figure 2As shown, limit holes 2 are formed around the upper circumference of the return air regulating valve frame 1. A protruding locking block 14 is embedded inside the limit hole 2. A spring 13 is provided at one end of the protruding locking block 14, and a threaded sleeve block 12 is provided at the other end of the spring 13. A limit block 11 is provided at one end of the threaded sleeve block 12. A protective disc 8 is installed on the upper side of the return air regulating valve frame 1. Mounting holes 9 are formed around the circumference of the protective disc 8. A dustproof net 10 is provided in the middle of the protective disc 8. The connecting plate 7 is fixedly installed between the return air regulating valve frame 1 and the connecting block 15 with bearings. The connecting block 15 with bearings is detachably installed between the connecting plate 7 and the second locking rod 6. The second locking rod 6 is rotatably connected to the connecting block 15 with bearings. Interlocking connection: the first locking rod 5 is locked to the damper blade 3, the first locking rod 5 is rotatably connected to the support block 4, the support block 4 is detachably installed to the return air regulating damper frame 1, the second locking rod 6 is fixedly connected to the adjusting plate 16, the adjusting plate 16 is rotatably connected to the adjusting rod 17 through a rotating shaft, the dustproof net 10 is fixedly installed to the protective disc 8, the protective disc 8 is detachably installed to the return air regulating damper frame 1, the limiting block 11 is fixedly connected to the threaded sleeve block 12, the threaded sleeve block 12 is fixedly connected to the spring 13, the spring 13 is fixedly connected to the protruding locking block 14, the protruding locking block 14 is locked to the limiting hole 2, and the threaded sleeve block 12 is threadedly connected to the limiting hole 2.

[0025] The two ends of the two sets of adjustment plates 16 are respectively connected to adjustment rods 17 via rotating shafts, and one set of adjustment plates 16 is connected to two sets of connecting plates 7 via rotating shafts, so that several sets of adjustment rods 17 and adjustment plates 16 can be interlocked.

[0026] The working process of this utility model is as follows: When using the return air regulating damper assembly designed in this scheme, the mounting hole 9 of the protective disc 8 is aligned with the limiting hole 2 of the return air regulating damper frame 1. The protruding locking block 14 at one end of the limiting block 11 passes through the mounting hole 9 and enters the limiting hole 2. By rotating the limiting block 11, the threaded sleeve 12 is locked into the limiting hole 2, which facilitates the installation of the protective disc 8. The dustproof net 10 is used to prevent dust from hindering the rotation of the damper blade 3. By rotating the rotary valve 18, the second locking rod 6, the adjusting plate 16 and the adjusting rod 17 are interlocked, thereby driving the damper blade 3, which is locked in by the second locking rod 6, to rotate in sequence, which facilitates the adjustment of the angle of the damper blade, thereby adjusting the return air effect and improving the efficiency of the damper.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A return air regulating damper assembly, comprising a return air regulating damper circular frame (1), characterized in that: The outer wall of the return air regulating valve circular frame (1) is provided with connecting plates (7) around the perimeter. A second locking rod (6) is provided in the middle of the connecting plate (7) through a bearing. One end of the second locking rod (6) is fitted with a valve blade (3). The other end of the second locking rod (6) is provided with an adjusting plate (16). The middle of the adjusting plate (16) is connected to an adjusting rod (17) through a rotating shaft. The other end of the valve blade (3) is fitted with a first locking rod (5). One end of the first locking rod (5) is provided with a support block (4). The number of second locking rods (6) is several. The number of adjusting rods (17) and adjusting plates (16) is several. Several sets of adjusting plates (16) and adjusting rods (17) are connected to each other. One end of one set of second locking rods (6) is provided with a rotary valve (18).

2. The return air regulating damper assembly according to claim 1, characterized in that: The upper side of the return air regulating valve frame (1) is provided with limit holes (2), and the inside of the limit holes (2) is fitted with protruding blocks (14). One end of the protruding blocks (14) is provided with a spring (13), and the other end of the spring (13) is provided with a threaded sleeve (12). One end of the threaded sleeve (12) is provided with a limit block (11). A protective disc (8) is installed on the upper side of the return air regulating valve frame (1). The protective disc (8) is provided with mounting holes (9) around its circumference, and a dustproof net (10) is provided in the middle of the protective disc (8).

3. The return air regulating damper assembly according to claim 1, characterized in that: The connecting plate (7) is fixedly installed between the return air regulating valve frame (1) and the connecting block (15) with the bearing is detachably installed between the connecting plate (7).

4. The return air regulating damper assembly according to claim 1, characterized in that: The second clamp (6) is rotatably connected to the connecting block (15) with bearings, the second clamp (6) is engaged with the wind valve blade (3), the first clamp (5) is engaged with the wind valve blade (3), and the first clamp (5) is rotatably connected to the support block (4).

5. A return air regulating damper assembly according to claim 1, characterized in that: The support block (4) is detachably installed with the return air regulating valve frame (1), the second clamp (6) is fixedly connected with the regulating plate (16), and the regulating plate (16) and the regulating rod (17) are rotatably connected through a rotating shaft.

6. A return air regulating damper assembly according to claim 2, characterized in that: The dustproof net (10) is fixedly installed between the protective disc (8) and the return air regulating valve frame (1). The limiting block (11) is fixedly connected to the threaded sleeve block (12).

7. A return air regulating damper assembly according to claim 2, characterized in that: The threaded sleeve (12) is fixedly connected to the spring (13), the spring (13) is fixedly connected to the protruding locking block (14), the protruding locking block (14) is engaged with the limiting hole (2), and the threaded sleeve (12) is threadedly connected to the limiting hole (2).

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