Silent air supply device for indoor ventilation

Abstract

The utility model discloses a mute air supply device for indoor ventilation, which relates to the technical field of air supply and comprises a casing, an air outlet is arranged at the top of the casing, an air inlet is arranged on one side of the casing, a spiral cavity is arranged in the casing, the air inlet is communicated with the air outlet through the spiral cavity, an assembly groove is arranged at the top of the casing, and a pressing plate is embedded in the assembly groove. Partition plates are symmetrically and fixedly connected to the positions, located at the bottom of the pressing plate, in the machine shell, sliding grooves are symmetrically formed in the opposite sides of the partition plates, and filter screens are arranged between the partition plates at equal intervals. The efficient ventilation capacity is beneficial for improving the indoor air quality and reducing accumulation of pollutants and harmful gas, the filter screen is installed in a sliding connection mode, and parts such as the pressing plate and the positioning block are arranged, so that the filter screen is very easy and convenient to replace and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply, in particular to a silent air supply device for indoor ventilation. Background Art

[0002] Many existing air supply devices generate a lot of noise during operation, such as mechanical noise generated by the operation of the motor and airflow noise generated by the fan blades cutting the air when rotating at high speed. This is the main source of noise in the air supply device. Factors such as the material and rotation speed of the motor and blades will affect the noise level.

[0003] Secondly, the filter designs of some air supply devices are complex, and replacement requires disassembly of multiple parts or use of professional tools, which increases the maintenance difficulty and cost for users. The inconvenience of filter replacement may also result in the filter not being replaced for a long time, thereby affecting the air supply quality and indoor air quality. Utility Model Content

[0004] In order to make up for the deficiencies of the existing technical problems, the purpose of this utility model is to provide a silent air supply device for indoor ventilation, and the technical problems to be solved are as follows: how to reduce the noise during equipment operation and how to design a structure that is easy to maintain and clean.

[0005] In order to solve the problems of the prior art, the technical solutions of the present utility model are as follows:

[0006] A silent air supply device for indoor ventilation includes a casing, an air outlet is provided on the top of the casing, an air inlet is provided on one side of the casing, a spiral cavity is provided inside the casing, the air inlet is connected to the air outlet through the spiral cavity, an assembly groove is provided on the top of the casing, a pressure plate is embedded in the assembly groove, partitions are symmetrically fixedly connected to the bottom of the pressure plate inside the casing, slide grooves are symmetrically opened on the opposite side of the partition, filters are equidistantly provided between the partitions, both sides of the filter are slidably connected to the corresponding slide grooves, and positioning blocks are rotatably connected to the four corners of the pressure plate on the top of the casing.

[0007] Preferably, a rubber pad is provided at the bottom of the positioning block, and the rubber pad is in squeeze contact with the surface of the pressure plate. Firstly, the friction between the positioning block and the pressure plate is increased to ensure the stability of the filter under the pressure plate and prevent it from loosening due to vibration or airflow during operation. Secondly, the rubber pad has a certain elasticity and buffering effect, which can provide a better sealing effect when the pressure plate is tightened, while reducing the pressure generated by the pressure plate directly pressing on the filter, protecting the filter from damage.

[0008] Preferably, a handle is fixedly connected to the center of the top of the pressing plate. When the filter needs to be replaced or cleaned, the pressing plate can be easily lifted by holding the handle, thereby conveniently taking out the filter.

[0009] Preferably, a rotating shaft is rotatably connected inside the casing, and an impeller is fixedly connected to the outside of one end of the rotating shaft. The impeller is arranged in the spiral cavity, and the impeller is arranged directly opposite the air inlet. The rotating shaft rotates, thereby driving the impeller to rotate. The rotation of the impeller generates suction, which draws external air into the air inlet and accelerates it out through the spiral cavity.

[0010] Preferably, a base is fixedly connected to one side of the casing, a support base is symmetrically fixedly connected to the top of the base, a rotating shaft is rotatably connected inside the support base, a motor is installed on one side of the base, the output end of the motor is connected to the end corresponding to the rotating shaft through a belt assembly, and the motor drives the rotating shaft to rotate through the belt assembly, thereby driving the impeller to rotate.

[0011] Preferably, a protective sleeve is fixedly connected to one side of the base, and the protective sleeve is sleeved on the corresponding end of the rotating shaft and the outside of the motor output shaft to protect the belt assembly from external damage and ensure the stable operation of the rotating shaft and the motor.

[0012] Preferably, the inner wall of the casing is provided with sound-absorbing cotton, which has good sound-absorbing performance and can effectively absorb and reduce the noise generated by the operation of the equipment, thereby achieving the effect of silent air supply.

[0013] Compared with the prior art, the advantages of the present invention are as follows:

[0014] 1. This utility model uses a motor to drive the impeller to rotate, generating powerful suction that can quickly exchange indoor air with fresh air from outside. This efficient ventilation capacity helps improve indoor air quality and reduce the accumulation of pollutants and harmful gases. Compared with traditional fan blades that directly transport air, it can more effectively reduce turbulence and eddies in the air flow, thereby reducing noise. The guiding effect of the spiral cavity makes the air flow smoother, reducing the noise caused by airflow impact and friction.

[0015] 2. The filter of this utility model adopts a sliding connection method and is equipped with components such as a pressure plate and a positioning block, which makes the replacement and cleaning of the filter very simple. You only need to easily lift the pressure plate to take out the filter for cleaning or replacement without complicated tools or steps. This easy-to-maintain and clean design extends the service life of the device and ensures its continuous and efficient ventilation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the base structure of the present utility model.

[0018] Figure 3 This is a cross-sectional view of the casing structure of the present utility model.

[0019] Figure 4 This is a schematic diagram of the spiral cavity structure of the present utility model.

[0020] Figure 5 This is a schematic diagram of the partition structure of the utility model.

[0021] Figure markings: 1. Casing; 2. Air outlet; 3. Air inlet; 4. Spiral chamber; 5. Assembly groove; 6. Pressure plate; 7. Partition; 8. Slide; 9. Filter; 10. Positioning block; 11. Rubber pad; 12. Handle; 13. Rotating shaft; 14. Impeller; 15. Base; 16. Support seat; 17. Motor; 18. Belt assembly; 19. Protective cover. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] The silent air supply device for indoor ventilation comprises a housing 1;

[0024] like Figures 1 to 5 As shown, an air outlet 2 is provided on the top of the casing 1, an air inlet 3 is provided on one side of the casing 1, a spiral cavity 4 is provided inside the casing 1, and the air inlet 3 is communicated with the air outlet 2 through the spiral cavity 4. A mounting groove 5 is provided on the top of the casing 1, and a pressure plate 6 is embedded in the mounting groove 5. A partition 7 is symmetrically fixedly connected to the bottom of the pressure plate 6 inside the casing 1, and a slide groove 8 is symmetrically opened on the opposite side of the partition 7. Filters 9 are equidistantly provided between the partitions 7, and both sides of the filter 9 are slidably connected to the corresponding slide groove 8. Positioning blocks 10 are rotatably connected to the four corners of the pressure plate 6 at the top of the casing 1;

[0025] When air passes through the spiral cavity 4 from the air inlet 3, it passes through the filter screen 9 arranged equidistantly between the partitions 7. The two sides of the filter screen 9 are slidably connected in the corresponding chute 8, which not only facilitates the installation and removal of the filter screen 9, but also ensures that the air can be effectively filtered when passing through, removing dust, odor and other impurities, thereby improving the purity and comfort of the indoor air.

[0026] When the filter screen 9 needs to be replaced or cleaned, the positioning block 10 can be rotated to separate the rubber pad 11 from the surface of the pressing plate 6, thereby conveniently taking out the pressing plate 6 and the filter screen 9.

[0027] like Figures 1 to 5 As shown, a rubber pad 11 is provided at the bottom of each positioning block 10 , and the rubber pad 11 is in compression contact with the surface of the pressing plate 6 .

[0028] like Figures 1 to 5As shown, a handle 12 is fixedly connected to the center of the top of the pressing plate 6 to facilitate lifting the pressing plate 6 for operation. It is more convenient to take and place the pressing plate 6 by lifting it with the handle 12.

[0029] like Figures 1 to 5 As shown, a rotating shaft 13 is rotatably connected inside the casing 1, and an impeller 14 is fixedly connected to the outside of one end of the rotating shaft 13. The impeller 14 is arranged in the spiral chamber 4, and the impeller 14 is arranged facing the air inlet 3. The rotating shaft 13 drives the impeller 14 to rotate accordingly. Since the impeller 14 faces the air inlet 3, it starts to inhale external air. The air enters the spiral chamber 4 through the air inlet 3. In the spiral chamber 4, the air is accelerated by the rotation of the impeller 14 and is guided to the air outlet 2 along the path of the spiral chamber 4.

[0030] like Figures 1 to 5 As shown, a base 15 is fixedly connected to one side of the casing 1, and a support base 16 is symmetrically fixedly connected to the top of the base 15. The rotating shaft 13 is rotatably connected inside the support base 16. A motor 17 is installed on one side of the base 15. The output end of the motor 17 is connected to the end corresponding to the rotating shaft 13 through a belt assembly 18. Driven by the motor 17, its output end is connected through the belt assembly 18, driving the rotating shaft 13 to rotate inside the support base 16.

[0031] like Figures 1 to 5 As shown, a protective cover 19 is fixedly connected to one side of the base 15. The protective cover 19 is sleeved on the corresponding end of the rotating shaft 13 and the outside of the output shaft of the motor 17 to protect components such as the belt and the pulley from external damage.

[0032] like Figures 1 to 5 As shown, the inner wall of the casing 1 is provided with sound-absorbing cotton, which can effectively absorb and reduce the noise generated by the operation of the equipment, thereby achieving the effect of silent air supply.

[0033] Although the 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 may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silent air supply device for indoor ventilation, comprising a housing (1), an air outlet (2) provided on the top of the housing (1), an air inlet (3) provided on one side of the housing (1), a spiral cavity (4) provided inside the housing (1), the air inlet (3) being connected to the air outlet (2) via the spiral cavity (4), and characterized in that: The housing (1) is provided with an assembly groove (5) at the top, a pressure plate (6) is embedded in the assembly groove (5), a partition (7) is symmetrically fixedly connected to the bottom of the pressure plate (6) inside the housing (1), and a sliding groove (8) is symmetrically opened on the opposite side of the partition (7), and a filter screen (9) is equidistantly provided between the partitions (7), and both sides of the filter screen (9) are respectively slidably connected to the corresponding sliding groove (8), and the top of the housing (1) is rotatably connected to the four corners of the pressure plate (6).

2. The silent air supply device for indoor ventilation according to claim 1, characterized in that: The bottom of each positioning block (10) is provided with a rubber pad (11), and the rubber pad (11) is in extrusion contact with the surface of the pressing plate (6).

3. The silent air supply device for indoor ventilation according to claim 1, characterized in that: A handle (12) is fixedly connected to the center of the top of the pressing plate (6).

4. The silent air supply device for indoor ventilation according to claim 1, characterized in that: The housing (1) is internally rotatably connected to a rotating shaft (13), and an impeller (14) is fixedly connected to the outside of one end of the rotating shaft (13). The impeller (14) is arranged in the spiral cavity (4), and the impeller (14) is arranged facing the air inlet (3).

5. The silent air supply device for indoor ventilation according to claim 4, characterized in that: One side of the housing (1) is fixedly connected to a base (15), the top of the base (15) is symmetrically fixedly connected to a support base (16), the rotating shaft (13) is rotatably connected inside the support base (16), and a motor (17) is installed on one side of the base (15), and the output end of the motor (17) is connected to the end corresponding to the rotating shaft (13) through a belt assembly (18).

6. The silent air supply device for indoor ventilation according to claim 5, characterized in that: A protective sleeve (19) is fixedly connected to one side of the base (15), and the protective sleeve (19) is sleeved on the corresponding end of the rotating shaft (13) and the outer side of the output shaft of the motor (17).

7. The silent air supply device for indoor ventilation according to claim 1, characterized in that: The inner wall of the casing (1) is provided with sound-absorbing cotton.

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