Self-adaptive dynamic balance variable air volume regulating valve

Abstract

The utility model discloses a self-adaptive dynamic balance variable air volume regulating valve, which belongs to the technical field of regulating valves, and comprises an air box body, an air volume frame is arranged in the air box body, a motor is arranged on the air volume frame, a transmission end of the motor is connected with a screw rod, an air volume regulating plate is connected in the air volume regulating plate in a sliding manner, and the air volume regulating plate is connected with the screw rod. An electric push rod is arranged on the placement frame, a push block is connected to the output end of the electric push rod, and a sealing air cushion is arranged in the air volume frame; the air volume frame, the motor, the lead screw, the air volume adjusting plate, the electric push rod, the push block, the through groove and the sealing air cushion are arranged, the motor drives the lead screw to rotate so as to drive the air volume adjusting plate to move downwards to seal the air volume frame, and at the moment, the electric push rod pushes the push block to gradually push airflow to enter the sealing air cushion through the through groove; and therefore, a gap between the air volume adjusting plate and the air volume frame can be conveniently sealed, and the air leakage rate of the whole air volume adjusting valve is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of regulating valve technology, specifically relating to an adaptive dynamic balance variable air volume regulating valve. Background Technology

[0002] Air volume regulating valves control the air volume by adjusting the opening and closing of valve blades. They are indispensable central air conditioning terminal accessories in ventilation, air conditioning and air purification projects in industrial plants and civil buildings. They are generally used in air conditioning and ventilation system ducts to regulate the air volume of branch pipes, and can also be used for the mixed regulation of fresh air and return air.

[0003] A variable air volume regulating valve with patent number CN107044722A can be well connected to the ventilation duct through square sleeves on both sides of the valve body, and is sealed and fixed by the sealing rubber ring, ensuring the sealing performance and connection firmness of the connection, thereby ensuring the normal use of the regulating valve; the control system integrated on the valve body can not only accurately measure the changes of the regulating parameters when adjusting the air volume, but also remotely transmit data, realizing adaptive dynamic balance of regulation.

[0004] However, in actual operation, the variable air volume regulating valve of this utility model has a relatively large overall structure volume because the regulating blades inside the valve are all straight blades. Although the regulating blades are more direct in the adjustment operation, the regulating blades are in contact with the inner wall of the regulating valve when they are closed. This results in more stress changes and more gaps between the regulating blades and the inner wall of the regulating valve, thus leading to a relatively high air leakage rate. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive dynamic balance variable air volume regulating valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adaptive dynamic balance variable air volume regulating valve, comprising an air box body, an air volume frame inside the air box body, an adjusting mechanism on the air box body, the adjusting mechanism comprising a mounting frame, a mounting frame fixedly connected to the air box body, a motor on the mounting frame, a lead screw connected to the transmission end of the motor, the lead screw rotatably connected to the inside of the mounting frame, an air volume regulating plate slidably connected inside the mounting frame, the lead screw threadedly connected to the inside of the air volume regulating plate, a sealing mechanism inside the air box body and the mounting frame, the sealing mechanism comprising an electric push rod, an electric push rod on the mounting frame, a push block connected to the output end of the electric push rod, the push block slidably connected to the inside of the mounting frame, a sealing air cushion inside the air volume frame, and a through groove inside the air box body, the through groove communicating with the inner cavity where the sealing air cushion and the push block are located.

[0007] In a preferred embodiment, a flange is fixedly connected to each end of the air box body, and the flange is rectangular.

[0008] In a preferred embodiment, the bellows body is provided with an installation mechanism, the installation mechanism includes a fixing block, the fixing block is fixedly connected to the bellows body, the fixing block is provided with a hanging rod, and the top of the hanging rod is fixedly connected to the installation block.

[0009] In a preferred embodiment, a bolt is provided at the top and bottom of the fixing block, and the bolt is threaded onto the hanger rod.

[0010] In a preferred embodiment, two reinforcing blocks are fixedly connected to the mounting frame. The reinforcing blocks are fixedly connected to the bellows body and are triangular in shape.

[0011] In a preferred embodiment, two limiting rods are fixedly connected inside the mounting frame, and the air volume regulating plate is slidably connected to the two limiting rods.

[0012] In a preferred embodiment, the bottom of the push block's cross-section is inclined, and the entire through groove is inclined.

[0013] In a preferred embodiment, a rubber pad is provided at the bottom of the inner cavity of the bellows, and the rubber pad is rectangular.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention comprises an airflow frame, a motor, a lead screw, an airflow regulating plate, an electric push rod, a push block, a through groove, and a sealing air cushion. During operation, the user can connect the motor to the power supply as needed. The motor's rotation drives the lead screw, which in turn drives the airflow regulating plate to move downwards within the mounting frame, gradually entering the airflow frame to regulate the ventilation volume of the ventilation duct. After ventilation ends, the airflow regulating plate completely seals the airflow frame. At this point, the electric push rod can be connected to the power supply, pushing the push block. As the push block moves, it gradually pushes the air within the mounting frame's cavity. This airflow then enters the sealing air cushion through the through groove, causing the sealing air cushion to expand. This effectively seals the gap between the airflow regulating plate and the airflow frame to the greatest extent possible, thus reducing the overall airflow regulating valve's leakage rate.

[0016] This invention, by setting a limiting rod and a rubber pad, allows the limiting rod to simultaneously guide and limit the movement of the air volume regulating plate during its up-and-down movement, making the movement of the air volume regulating plate more stable and the alignment with the air volume frame more precise, further reducing the generation of gaps. Furthermore, the rubber pad can further seal the gap between the bottom of the air volume regulating plate and the air volume frame when the air volume regulating plate is completely closed to the air volume frame, further reducing the overall air leakage rate of the air volume regulating valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the wind box body, flange, mounting mechanism and adjusting mechanism of the present utility model.

[0019] Figure 3 This is a schematic diagram of the bellows body, air volume frame, adjustment mechanism and rubber pad of the present utility model.

[0020] Figure 4 A schematic diagram of the bellows body, flange, air volume frame and sealing gasket of this utility model;

[0021] Figure 5 This is an enlarged schematic diagram of part A of the structure of this utility model;

[0022] Figure 6 This is an enlarged schematic diagram of part B of the structure of this utility model.

[0023] In the diagram: 1. Air box body; 2. Flange; 3. Mounting mechanism; 301. Fixing block; 302. Hanger rod; 303. Mounting block; 304. Bolt; 4. Air volume frame; 5. Adjustment mechanism; 501. Mounting frame; 502. Reinforcing block; 503. Motor; 504. Screw; 505. Air volume adjustment plate; 506. Limit rod; 6. Sealing mechanism; 601. Electric push rod; 602. Push block; 603. Through groove; 604. Sealing air cushion; 7. Rubber gasket. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0026] Please see Figure 1-6This utility model provides an adaptive dynamic balance variable air volume regulating valve, including an air box body 1, an air volume frame 4 inside the air box body 1, and an adjusting mechanism 5 on the air box body 1. The adjusting mechanism 5 includes a mounting frame 501, which is fixedly connected to the air box body 1. A motor 503 is mounted on the mounting frame 501, and a lead screw 504 is connected to the transmission end of the motor 503. The lead screw 504 is rotatably connected inside the mounting frame 501. An air volume adjusting plate 505 is slidably connected inside the mounting frame 501. 4 is threaded to the inside of the air volume regulating plate 505. The air box body 1 and the mounting frame 501 are provided with a sealing mechanism 6. The sealing mechanism 6 includes an electric push rod 601. The mounting frame 501 is provided with an electric push rod 601. The output end of the electric push rod 601 is connected to a push block 602. The push block 602 is slidably connected to the inside of the mounting frame 501. The air volume frame 4 is provided with a sealing air cushion 604. The air box body 1 is provided with a through groove 603. The through groove 603 connects to the inner cavity where the sealing air cushion 604 and the push block 602 are located.

[0027] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, a flange 2 is fixedly connected to each end of the air box body 1, and the flange 2 is rectangular. The air box body 1 is connected to the ventilation duct through the flange 2.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, the bellows body 1 is provided with an installation mechanism 3. The installation mechanism 3 includes a fixing block 301. The fixing block 301 is fixedly connected to the bellows body 1. The fixing block 301 is provided with a hanging rod 302. The top of the hanging rod 302 is fixedly connected with an installation block 303. The top and bottom of the fixing block 301 are respectively provided with a bolt 304. The bolt 304 is threadedly connected to the hanging rod 302. In use, the entire device can be easily installed and fixed by using the hanging rod 302 and the installation block 303 in conjunction with the bolt 304.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, two reinforcing blocks 502 are fixedly connected to the mounting frame 501. The reinforcing blocks 502 are fixedly connected to the air box body 1 and are triangular in shape to improve the overall stability of the mounting frame 501. Two limiting rods 506 are fixedly connected inside the mounting frame 501, and the air volume regulating plate 505 is slidably connected to the two limiting rods 506. The limiting rods 506 serve to limit and guide the movement of the air volume regulating plate 505.

[0030] Specifically, such as Figure 3 and Figure 5As shown, the bottom of the push block 602 is inclined to increase the pressure area of ​​the push block 602; and the entire through groove 603 is inclined to facilitate better connection between the sealing air cushion 604 and the inner cavity where the push block 602 is located.

[0031] Specifically, such as Figure 3 As shown, a rubber pad 7 is provided at the bottom of the inner cavity of the air box 1. The rubber pad 7 is rectangular. The rubber pad 7 further facilitates the sealing of the gap between the bottom of the air volume regulating plate 505 and the air volume frame 4, thereby reducing the air leakage rate of the entire air volume regulating valve. The working principle and usage of this utility model are as follows: During use, the entire device is easily installed and fixed using the hanger 302 and mounting block 303, along with bolts 304. During operation, according to actual needs, the user can connect the motor 503 on the mounting frame 501 to the power supply. The motor 503 rotates, driving the lead screw 504 to rotate. As the lead screw 504 rotates, it drives the air volume regulating plate 505 to move downwards continuously inside the mounting frame 501, gradually entering the air volume frame 4 to regulate the ventilation volume of the ventilation pipe. After ventilation is stopped... Then, the air volume regulating plate 505 can be completely closed to the air volume frame 4. At this time, the electric push rod 601 can be connected to the power supply. The electric push rod 601 pushes the push block 602. As the push block 602 moves, it will gradually push the air in the cavity of the placement frame 501. This airflow then enters the sealing air pad 604 through the through groove 603, causing the sealing air pad 604 to expand. This facilitates the maximum sealing of the gap between the air volume regulating plate 505 and the air volume frame 4, thereby reducing the leakage rate of the entire air volume regulating valve.

[0032] Furthermore, during the up-and-down movement of the air volume regulating plate 505, the limiting rod 506 simultaneously acts as a limiting guide for the air volume regulating plate 505, making the movement of the air volume regulating plate 505 more stable and the alignment with the air volume frame 4 more precise, further reducing the generation of gaps. Moreover, through the rubber pad 7, when the air volume regulating plate 505 is completely closed to the air volume frame 4, the gap between the bottom of the air volume regulating plate 505 and the air volume frame 4 can be further sealed, further reducing the air leakage rate of the entire air volume regulating valve.

[0033] 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. An adaptive dynamic balance variable air volume regulating valve, comprising an air box body (1), characterized in that: The air box body (1) is provided with an air volume frame (4) inside. The air box body (1) is provided with an adjustment mechanism (5). The adjustment mechanism (5) includes a mounting frame (501). The mounting frame (501) is fixedly connected to the air box body (1). The mounting frame (501) is provided with a motor (503). The transmission end of the motor (503) is connected to a lead screw (504). The lead screw (504) is rotatably connected to the inside of the mounting frame (501). An air volume adjustment plate (505) is slidably connected inside the mounting frame (501). The lead screw (504) is threadedly connected to the air volume adjustment plate (505). Inside, the bellows body (1) and the mounting frame (501) are provided with a sealing mechanism (6). The sealing mechanism (6) includes an electric push rod (601). The mounting frame (501) is provided with an electric push rod (601). The output end of the electric push rod (601) is connected to a push block (602). The push block (602) is slidably connected inside the mounting frame (501). The air volume frame (4) is provided with a sealing air cushion (604). The bellows body (1) is provided with a through groove (603). The through groove (603) is connected to the inner cavity where the sealing air cushion (604) and the push block (602) are located.

2. The adaptive dynamic balance variable air volume regulating valve according to claim 1, characterized in that: The bellows body (1) has a flange (2) fixedly connected to each end, and the flange (2) is rectangular.

3. The adaptive dynamic balance variable air volume regulating valve according to claim 1, characterized in that: The bellows body (1) is provided with an installation mechanism (3), the installation mechanism (3) includes a fixing block (301), the fixing block (301) is fixedly connected to the bellows body (1), the fixing block (301) is provided with a hanging rod (302), and the top of the hanging rod (302) is fixedly connected to an installation block (303).

4. The adaptive dynamic balance variable air volume regulating valve according to claim 3, characterized in that: The top and bottom of the fixing block (301) are respectively provided with a bolt (304), and the bolt (304) is threadedly connected to the hanger (302).

5. The adaptive dynamic balance variable air volume regulating valve according to claim 1, characterized in that: Two reinforcing blocks (502) are fixedly connected to the mounting frame (501). The reinforcing blocks (502) are fixedly connected to the bellows body (1), and the reinforcing blocks (502) are triangular.

6. The adaptive dynamic balance variable air volume regulating valve according to claim 1, characterized in that: The placement frame (501) is internally fixedly connected to two limiting rods (506), and the air volume regulating plate (505) is slidably connected to the two limiting rods (506).

7. The adaptive dynamic balance variable air volume regulating valve according to claim 1, characterized in that: The bottom of the push block (602) is inclined, and the entire through groove (603) is inclined.

8. The adaptive dynamic balance variable air volume regulating valve according to claim 1, characterized in that: The bottom of the inner cavity of the bellows body (1) is provided with a rubber pad (7), and the rubber pad (7) is rectangular.

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