A diffuser with adjustable noise reduction

Abstract

This utility model belongs to the field of diffuser technology, specifically relating to a diffuser with adjustable noise reduction. It includes a rectangular frame, with an air outlet fixedly connected to the lower end of the frame. A diffuser blade is fixedly connected to the inner wall of the air outlet. A limiting frame is fixedly sleeved on the outer side of the rectangular frame. A motor is fixedly installed on the inner left side wall of the rectangular frame, and the output shaft of the motor is rotatably connected to the rectangular frame. A breathable valve plate is fixedly sleeved on the outer side of the motor's output shaft. This utility model drives the breathable valve plate to rotate via the motor, thereby causing the breathable noise reduction pad to deflect, making the breathable noise reduction pad perpendicular or parallel to the airflow direction. This allows for adjustable noise reduction for different airflow volumes. Furthermore, the positioning holes and positioning balls limit the rotation of the rotating disc, thereby assisting in the positioning of the motor's output shaft, ensuring that the breathable valve plate and other structures are in a stable state after adjustment.

Description

Technical Field

[0001] This utility model relates to the field of diffuser technology, specifically to a diffuser with adjustable noise reduction. Background Technology

[0002] A diffuser is a terminal device used to deliver airflow. Its main function is not only to deliver air, but more importantly, to distribute the concentrated high-speed airflow from the duct evenly into the indoor space in a diffused and mixed manner, thereby creating a stable and comfortable airflow.

[0003] A diffuser is disclosed in the utility model patent with patent authorization announcement number CN207831579U, which includes a diffuser body and an elastic device for snapping the diffuser body onto the ceiling. The diffuser body is provided with a mounting part, and the mounting part is provided with a snap-fit ​​platform, and the elastic device is fixed on the snap-fit ​​platform.

[0004] However, existing diffusers also have certain drawbacks. Although existing diffusers mostly use structures such as air outlets and diffuser blades to complete the airflow dissipation, due to factors such as different airflow rates and the limitations of the diffuser's internal structure, the diffuser is prone to problems such as poor subsequent noise reduction and high noise levels. Utility Model Content

[0005] The purpose of this utility model is to provide a diffuser with adjustable noise reduction, which solves the problem that although existing diffusers mostly adopt the setting of air outlets, diffuser blades and other structures to complete the airflow, the subsequent noise reduction effect of the diffuser is poor and the noise is relatively large due to the influence of factors such as different airflow rates and the limitations of the internal structure of the diffuser.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a diffuser with adjustable noise reduction, comprising a rectangular frame, an air outlet fixedly connected to the lower end of the rectangular frame, diffuser blades fixedly connected to the inner sidewall of the air outlet, a limiting frame fixedly sleeved on the outer side of the rectangular frame, a motor fixedly installed on the inner left sidewall of the rectangular frame, the output shaft of the motor rotatably connected to the rectangular frame, a breathable valve plate fixedly sleeved on the outer side of the output shaft of the motor, a breathable partition plate contacting the upper end of the breathable valve plate, a breathable noise reduction pad fixedly connected to the upper end of the breathable partition plate, an installation mechanism jointly provided on the breathable valve plate and the breathable partition plate, and a positioning mechanism jointly provided on the output shaft of the motor and the rectangular frame.

[0007] Preferably, a gasket is fixedly connected to the upper end of the limiting frame. The gasket is rectangular in shape and made of rubber. The gasket can be used to limit the installation of the rectangular frame in conjunction with the limiting frame. The rubber material has good durability and compression resistance.

[0008] Preferably, the installation mechanism includes a positioning rod. The lower end of the breathable partition is fixedly connected to the positioning rod, which is slidably connected to the breathable valve plate. The middle of the lower end of the breathable partition is fixedly connected to an insertion rod, which is slidably connected to the breathable valve plate. The lower end of the breathable valve plate is fixedly connected to a fixing plate. The inner wall of the fixing plate is slidably connected to a telescopic plate. The other end of the telescopic plate is fixedly connected to a limit rod, which is slidably connected to the insertion rod. The lower side of the limit rod is fixedly connected to a connecting plate. The end face of the connecting plate is fixedly connected to a spring, and the other end of the spring is fixedly connected to the fixing plate. By setting the insertion rod, the breathable partition and the breathable valve plate can be inserted and positioned. With the action of the limit rod, spring, and other structures, the insertion rod can be inserted, making the breathable partition and the others in a stable connection.

[0009] Preferably, four positioning rods are provided, which are evenly distributed on the breathable partition. The positioning rods are made of stainless steel. By setting the positioning rods, the breathable partition can be positioned and used, and the stainless steel material has good structural strength.

[0010] Preferably, an end frame is fixedly connected to the end face of the telescopic plate, and the end frame is slidably connected to the vent valve plate. The end frame is made of silicone. The end frame facilitates the movement of the telescopic plate by pulling it, and the silicone material has a good feel when used.

[0011] Preferably, the positioning mechanism includes a rotating disk, which is fixedly sleeved on the outer side of the motor's output shaft. The rotating disk has multiple positioning holes arranged in a circular array on its side. A mounting plate is fixedly connected to the inner right side wall of the rectangular frame. A telescopic frame is slidably connected to the inner wall of the mounting plate. A positioning ball is fixedly connected to the vertical part of the telescopic frame. The positioning ball is slidably connected to one of the positioning holes. Through the combined use of the positioning ball, positioning hole, and other structures, the rotating disk can be limited, thereby rotating and positioning the motor's output shaft, so that the vent valve plate and other components are stable after adjustment.

[0012] Preferably, a second spring is provided on the outer side of the vertical part of the telescopic frame. One end of the second spring is fixedly connected to the mounting plate, and the other end of the second spring is fixedly connected to the end of the telescopic frame. The telescopic frame can be connected and used by providing the second spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model pushes the breathable partition to contact the breathable valve plate, so that the positioning rod and the insertion rod pass through the breathable valve plate, and quickly positions the breathable partition, breathable sound-absorbing pad, etc. Under the action of the limiting rod, spring, telescopic plate and other structures, the insertion rod can be inserted and limited, so that the breathable partition drives the breathable sound-absorbing pad in a stable position, which is convenient for subsequent sound absorption.

[0014] 2. This utility model uses a motor to drive the air-permeable valve plate to rotate, thereby causing the air-permeable sound-absorbing pad to deflect, so that the air-permeable sound-absorbing pad is perpendicular or parallel to the airflow direction. It can be used for adjustable sound absorption for different airflow volumes. With the help of positioning holes, positioning balls and other structures, the rotation of the rotating disk can be limited, thereby assisting in the positioning of the motor output shaft, so that the air-permeable valve plate and other structures are in a stable state after adjustment. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 A bottom view; Figure 3 For the present utility model Figure 1 Top view; Figure 4 For the present utility model Figure 1 A schematic diagram of the internal structure of the rectangular frame; Figure 5 For the present utility model Figure 3 A bottom view; Figure 6 For the present utility model Figure 5 Enlarged view of point A; Figure 7 For the present utility model Figure 4 Enlarged view of the positioning mechanism.

[0016] In the diagram: 1. Rectangular frame; 2. Air outlet; 3. Diffuser blades; 4. Limiting frame; 5. Gasket; 6. Motor; 7. Breathable valve plate; 8. Breathable partition; 9. Breathable sound-absorbing pad; 10. Installation mechanism; 11. Positioning mechanism; 100. Positioning rod; 101. Insert rod; 102. Fixing plate; 103. Telescopic plate; 104. End frame; 105. Limiting rod; 106. Connecting plate; 107. Spring 1; 110. Rotating disk; 111. Positioning hole; 112. Mounting plate; 113. Telescopic frame; 114. Positioning ball; 115. Spring 2. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 An adjustable noise reduction diffuser includes a rectangular frame 1, an air outlet 2 fixedly connected to the lower end of the rectangular frame 1, a diffuser blade 3 fixedly connected to the inner side wall of the air outlet 2, a limit frame 4 fixedly sleeved on the outer side of the rectangular frame 1, a motor 6 fixedly installed on the inner left side wall of the rectangular frame 1, the output shaft of the motor 6 being rotatably connected to the rectangular frame 1, a breathable valve plate 7 fixedly sleeved on the outer side of the output shaft of the motor 6, a breathable partition 8 contacting the upper end of the breathable valve plate 7, and a breathable noise reduction pad 9 fixedly connected to the upper end of the breathable partition 8.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A gasket 5 is fixedly connected to the upper end of the limiting frame 4. The gasket 5 is rectangular in shape and made of rubber. The gasket 5 can be used to limit the installation of the rectangular frame 1 in conjunction with the limiting frame 4. The rubber material has good durability and compression resistance.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6An installation mechanism 10 is provided on both the vent valve plate 7 and the vent partition 8. The installation mechanism 10 includes a positioning rod 100. The lower end of the vent partition 8 is fixedly connected to the positioning rod 100, which is slidably connected to the vent valve plate 7. The middle of the lower end of the vent partition 8 is fixedly connected to an insertion rod 101, which is slidably connected to the vent valve plate 7. The lower end of the vent valve plate 7 is fixedly connected to a fixing plate 102. The inner wall of the fixing plate 102 is slidably connected to a telescopic plate 103, and the other end of the telescopic plate 103 is fixedly connected to a... Positioning rod 105 is slidably connected to insertion rod 101. A connecting piece 106 is fixedly connected to the lower side of the positioning rod 105. A spring 107 is fixedly connected to the end face of the connecting piece 106. The other end of the spring 107 is fixedly connected to the fixing piece 102. Through the setting of insertion rod 101, the breathable partition 8 and the breathable valve plate 7 can be inserted and positioned. With the action of the positioning rod 105, spring 107 and other structures, insertion rod 101 can be inserted, so that the breathable partition 8 and the others are in a stable connection.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 There are four positioning rods 100, which are evenly distributed on the breathable partition 8. The positioning rods 100 are made of stainless steel. The positioning rods 100 can be used to position the breathable partition 8, and the stainless steel material has good structural strength.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The end face of the telescopic plate 103 is fixedly connected to the end frame 104, and the end frame 104 is slidably connected to the vent valve plate 7. The end frame 104 is made of silicone. The end frame 104 facilitates the movement of the telescopic plate 103, and the silicone material has a good feel.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7A positioning mechanism 11 is provided on both the output shaft of the motor 6 and the rectangular frame 1. The positioning mechanism 11 includes a rotating disk 110. The rotating disk 110 is fixedly sleeved on the outside of the output shaft of the motor 6. The side of the rotating disk 110 has multiple positioning holes 111 arranged in a circular array. The inner right side wall of the rectangular frame 1 is fixedly connected to a mounting plate 112. The inner wall of the mounting plate 112 is slidably connected to a telescopic frame 113. The vertical part of the telescopic frame 113 is fixedly connected to a positioning ball 114. The positioning ball 114 is slidably connected to one of the positioning holes 111. Through the cooperation of the positioning ball 114, the positioning hole 111 and other structures, the rotating disk 110 can be limited, thereby rotating and positioning the output shaft of the motor 6, so that the vent valve plate 7 and other components are stable after adjustment.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 A second spring 115 is provided on the outer side of the vertical part of the telescopic frame 113. One end of the second spring 115 is fixedly connected to the mounting plate 112, and the other end of the second spring 115 is fixedly connected to the end of the telescopic frame 113. The telescopic frame 113 can be connected and used through the setting of the second spring 115.

[0025] The specific implementation process of this utility model is as follows: In use, by pulling the end frame 104 to move away from the fixed plate 102, the telescopic plate 103 is moved along the inner wall of the fixed plate 102, and the limiting rod 105 is moved, so that the connecting plate 106 is moved. Under the action of the fixed plate 102, the spring 107 can be deformed, and then the breathable partition 8 is pushed to contact the breathable valve plate 7, so that the positioning rod 100 passes through the breathable valve plate 7, and the insertion rod 101 passes through the breathable valve plate 7, so that the breathable partition 8 is quickly positioned. Finally, the end frame 104 is released so that the spring 107 returns to its deformation, so that the connecting plate 106 is pushed to move the limiting rod 105, so that the limiting rod 105 passes through the insertion rod 101, so that the insertion rod 101 is inserted and limited, so that the breathable partition 8 and the breathable sound-absorbing pad 9 are stable, which is convenient for operators to install and use quickly. By setting up structures such as the breathable sound-absorbing pad 9, the breathable partition 8, and the breathable valve plate 7, the airflow can be silenced. When the output shaft of the motor 6 is driven to rotate, it can drive the breathable valve plate 7 to rotate, so that the breathable sound-absorbing pad 9 can be in a state perpendicular or parallel to the airflow direction. When it is in a perpendicular state, the breathable sound-absorbing pad 9 can be exposed to the maximum extent and the tortuosity of the airflow path can be increased, thereby efficiently absorbing and attenuating the sound energy of the wide frequency band. When it is in a parallel state, the obstruction to the airflow is minimal and the exposed area of ​​the breathable sound-absorbing pad 9 is also minimal, mainly providing the function of airflow distribution, thereby completing the adjustable sound-absorbing operation. When the output shaft of the motor 6 rotates, it drives the rotating disk 110 to rotate. Under the pressure of the inner wall of the positioning hole 111, the positioning ball 114 is pushed upward, causing the telescopic frame 113 to slide along the inner wall of the mounting plate 112. This causes the second spring 115 to deform, eventually causing the positioning ball 114 to disengage from the positioning hole 111 and slide along the surface of the rotating disk 110. When the positioning ball 114 slides into the next positioning hole 111, the second spring 115 returns to its original shape, pulling the telescopic frame 113 to reset and move, so that the positioning ball 114 is inserted into the positioning hole 111, limiting the rotating disk 110 and positioning the output shaft of the motor 6, so that components such as the vent valve plate 7 are in a stable state.

[0026] 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 variations 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 diffuser with adjustable noise reduction, comprising a rectangular frame (1), characterized in that: An air outlet (2) is fixedly connected to the lower end of the rectangular frame (1). A diffuser blade (3) is fixedly connected to the inner side wall of the air outlet (2). A limit frame (4) is fixedly sleeved on the outer side of the rectangular frame (1). A motor (6) is fixedly installed on the inner left side wall of the rectangular frame (1). The output shaft of the motor (6) is rotatably connected to the rectangular frame (1). A breathable valve plate (7) is fixedly sleeved on the outer side of the output shaft of the motor (6). A breathable partition (8) is in contact with the upper end of the breathable valve plate (7). A breathable sound-absorbing pad (9) is fixedly connected to the upper end of the breathable partition (8). An installation mechanism (10) is provided on both the breathable valve plate (7) and the breathable partition (8). A positioning mechanism (11) is provided on both the output shaft of the motor (6) and the rectangular frame (1).

2. A diffuser with adjustable noise reduction according to claim 1, characterized in that: A gasket (5) is fixedly connected to the upper end of the limiting frame (4). The gasket (5) is rectangular in shape and is made of rubber.

3. A diffuser with adjustable noise reduction according to claim 1, characterized in that: The installation mechanism (10) includes a positioning rod (100). The lower end of the breathable partition (8) is fixedly connected to the positioning rod (100). The positioning rod (100) is slidably connected to the breathable valve plate (7). The middle part of the lower end of the breathable partition (8) is fixedly connected to the insertion rod (101). The insertion rod (101) is slidably connected to the breathable valve plate (7). The lower end of the breathable valve plate (7) is fixedly connected to the fixing plate (102). The inner wall of the fixing plate (102) is slidably connected to the telescopic plate (103). The other end of the telescopic plate (103) is fixedly connected to the limit rod (105). The limit rod (105) is slidably connected to the insertion rod (101). The lower side of the limit rod (105) is fixedly connected to the connecting plate (106). The end face of the connecting plate (106) is fixedly connected to the spring (107). The other end of the spring (107) is fixedly connected to the fixing plate (102).

4. A diffuser with adjustable noise reduction according to claim 3, characterized in that: Four positioning rods (100) are provided, and the four positioning rods (100) are evenly distributed on the breathable partition (8). The positioning rods (100) are made of stainless steel.

5. A diffuser with adjustable noise reduction according to claim 3, characterized in that: The end face of the telescopic plate (103) is fixedly connected to an end frame (104), and the end frame (104) is slidably connected to the vent valve plate (7). The end frame (104) is made of silicone.

6. A diffuser with adjustable noise reduction according to claim 1, characterized in that: The positioning mechanism (11) includes a rotating disk (110). The rotating disk (110) is fixedly sleeved on the outside of the output shaft of the motor (6). The rotating disk (110) has multiple positioning holes (111) arranged in a ring array on its side. The inner right side wall of the rectangular frame (1) is fixedly connected to a mounting plate (112). The inner wall of the mounting plate (112) is slidably connected to a telescopic frame (113). The vertical part of the telescopic frame (113) is fixedly connected to a positioning ball (114). The positioning ball (114) is slidably connected to one of the positioning holes (111).

7. A diffuser with adjustable noise reduction according to claim 6, characterized in that: A second spring (115) is provided on the outer side of the vertical part of the telescopic frame (113). One end of the second spring (115) is fixedly connected to the mounting plate (112), and the other end of the second spring (115) is fixedly connected to the end of the telescopic frame (113).

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