Noise reduction type fan box

Abstract

The utility model relates to a fan box, in particular to a noise reduction type fan box. The noise reduction type fan box comprises a machine box body and further comprises sound insulation cotton I, sound insulation cotton II, a connecting plate, a connecting frame, a damping spring I and the like, the side walls of the left side and the right side in the machine box body are connected with the sound insulation cotton I, and the side walls of the left side and the right side outside the machine box body are connected with the sound insulation cotton II. Connecting plates distributed left and right are installed on the lower portion of the case body and slide in the connecting frame, and at least two damping springs I are connected between the connecting plates and the connecting frame. By arranging sound insulation cotton I, a connecting plate, a damping spring I and the like, the sound insulation cotton I and sound insulation cotton II play a sound insulation role, the diffusion range of noise in the case body is reduced, the connecting plate moves downwards to extrude the damping spring I, the damping spring I is compressed to play a damping role, then damping is conducted on the case body in the vertical direction, and the damping effect is improved. And noise caused by overlarge vibration amplitude of the case body is avoided.

Description

Technical Field

[0001] The utility model relates to a fan box, in particular to a noise reduction fan box. Background Art

[0002] The fan box is an air supply and exhaust device designed to meet different working conditions, with the characteristics of small size, beautiful appearance, easy maintenance, etc. The fan box is widely used in industrial production, air supply and exhaust buildings in high-rise building air conditioning engineering systems.

[0003] The patent with the patent authorization announcement number CN214742185U discloses a fan box, including a base, a hollow shell fixedly arranged on the base, a fan body arranged inside the hollow shell, one end of the input shaft in the fan body rotatably penetrates the inner wall of the hollow shell and is fixedly arranged with a first pulley, a transmission shaft is rotatably arranged on the side of the hollow shell, a second pulley is fixedly arranged on the transmission shaft, and a belt is connected between the first pulley and the second pulley. Although the above patent can facilitate the installation and replacement of the motor by setting a connecting device, there are still some shortcomings in actual use. For example, when the fan body is running, the impeller will rotate rapidly to generate noise, and the fan body will drive the hollow shell to vibrate, and the hollow shell is fixedly connected to the base, so the hollow shell will drive the base to vibrate, resulting in excessive vibration amplitude of the base and secondary noise between the ground or the table top, and the high noise is easy to cause harm to the health of the surrounding residents.

[0004] Therefore, a noise reduction fan box is particularly needed to solve the problems existing in the prior art. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patented fan body that the impeller rotates rapidly during operation to generate noise, and the fan body drives the hollow shell to vibrate, and the hollow shell is fixedly connected to the base, so the hollow shell drives the base to vibrate, resulting in the base vibrating in contact with the ground or the table top to generate secondary noise, and the noise is high and can easily cause harm to the health of surrounding residents, the utility model provides a noise reduction fan box.

[0006] The utility model is achieved through the following technical means: a noise reduction fan box, including an organic box body, and also including sound insulation cotton I, sound insulation cotton II, a connecting plate, a connecting frame, a shock-absorbing spring I and a damper I. The sound insulation cotton I is connected to the side walls on the left and right sides of the inside of the box body, and the sound insulation cotton II is connected to the side walls on the left and right sides of the outside of the box body. The lower part of the box body is equipped with connecting plates distributed on the left and right, the connecting plates slide inside the connecting frame, and at least two shock-absorbing springs I are connected between the connecting plate and the connecting frame. The damper I distributed front and back is installed inside the connecting frame, and the connecting plate is connected to the damper I. The connecting plate is driven to vibrate through the box body, so that the connecting plate squeezes the shock-absorbing spring I to compress for shock absorption.

[0007] Furthermore, it also includes a limiting block, and the upper part of the connecting frame is connected to the limiting block.

[0008] Furthermore, a soft cushion is provided on the side of the limiting block that contacts the connecting plate.

[0009] Furthermore, it also includes a connecting block, a connecting rod, a shock-absorbing spring II and a damper II. The connecting block is fixedly connected to the bottom of the connecting frame, and the connecting rods distributed front and back are fixedly connected to the fixed plate. The connecting block slides between the two connecting rods, and two shock-absorbing springs II are sleeved on both ends of the left and right ends of the connecting rods. The two ends of the shock-absorbing spring II are respectively connected to the connecting block and the connecting rod. The damper II distributed on the left and right is installed on the fixed plate. The connecting block is connected to the damper II, and the connecting block is driven to vibrate through the connecting frame, so that the connecting block squeezes the shock-absorbing spring II to compress it for shock absorption.

[0010] Furthermore, it also includes baffles, and the upper part of the connection frame is connected to baffles distributed front and back.

[0011] Furthermore, a sponge pad is included. The bottom of the baffle is connected to a sponge pad for protection, and the connecting plate is in contact with the sponge pad.

[0012] From the above description of the structure of the utility model, it can be known that the design starting point, concept and advantages of the utility model are: 1. By arranging sound insulation cotton I, connecting plate and 1 shock-absorbing spring I, etc., sound insulation cotton I and sound insulation cotton II play a sound insulation role, reducing the diffusion range of noise inside the chassis, and the connecting plate moves downward to squeeze the shock-absorbing spring I, and the shock-absorbing spring I is compressed to play a shock-absorbing role, thereby vertically absorbing the vibration of the chassis to avoid excessive vibration amplitude of the chassis to generate noise.

[0013] 2. By setting a limit block and a baffle, the limit block and the baffle cooperate to limit the connection plate to prevent the connection plate from falling out of the connection frame.

[0014] 3. By setting the connecting block, connecting rod and shock-absorbing spring II, the connecting frame drives the connecting block to vibrate, so that it moves left and right along the connecting rod, and then squeezes and pulls the corresponding shock-absorbing spring II, so that multiple shock-absorbing springs II are compressed and stretched respectively, thereby shock-absorbing the chassis in the horizontal direction, further avoiding excessive vibration amplitude of the chassis to generate noise, and ensuring the health of surrounding residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the connecting rod, fixing plate and shock absorbing spring II of the utility model.

[0017] Figure 3It is a three-dimensional structural schematic diagram of the chassis, sound insulation cotton I and sound insulation cotton II components of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the connection frame, baffle and sponge pad components of the utility model.

[0019] The names and serial numbers of the parts in the figure are: 1. Chassis body, 2. Sound insulation cotton I, 3. Connecting plate, 4. Connecting frame, 5. Shock-absorbing spring I, 6. Limit block, 7. Connecting block, 8. Connecting rod, 9. Fixing plate, 10. Shock-absorbing spring II, 11. Damper I, 12. Damper II, 13. Sound insulation cotton II, 14. Baffle, 15. Sponge pad. DETAILED DESCRIPTION

[0020] The preferred technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0021] Embodiment: A noise reduction fan box, see Figure 1-Figure 4 As shown, it includes an organic box body 1, and also includes sound insulation cotton I2, sound insulation cotton II13, connecting plate 3, connecting frame 4, shock absorbing spring I5, damper I11, limit block 6, baffle 14 and sponge pad 15. The side walls on the left and right sides of the inside of the box body 1 are connected with sound insulation cotton I2, and the side walls on the left and right sides of the outside of the box body 1 are connected with sound insulation cotton II13. The lower part of the box body 1 is connected to the left and right connecting plates 3 by bolts. The connecting plate 3 slides inside the connecting frame 4, and at least Two shock-absorbing springs I5, the interior of the connecting frame 4 is connected with a damper I11 distributed front and rear by bolts, the connecting plate 3 is connected to the damper I11, the upper inner part of the connecting frame 4 is connected with a limiting block 6, a side of the limiting block 6 in contact with the connecting plate 3 is provided with a cushion, the upper inner part of the connecting frame 4 is connected with a baffle 14 distributed front and rear, the bottom of the baffle 14 is connected with a sponge pad 15 for protection, the connecting plate 3 is in contact with the sponge pad 15, and the connecting plate 3 is driven to vibrate through the chassis 1, so that the connecting plate 3 squeezes the shock-absorbing spring I5 for compression to reduce shock.

[0022] See also Figure 1 and Figure 2 As shown, it also includes a connecting block 7, a connecting rod 8, a shock-absorbing spring II 10 and a damper II 12. The connecting block 7 is connected to the bottom of the connecting frame 4 by welding. The connecting rods 8 distributed front and back are connected to the fixing plate 9 by welding. The connecting block 7 slides between the two connecting rods 8, and two shock-absorbing springs II 10 are sleeved on both ends of the connecting rod 8. The two ends of the shock-absorbing spring II 10 are respectively connected to the connecting block 7 and the connecting rod 8. The dampers II 12 distributed left and right are connected to the fixing plate 9 by bolts. The connecting block 7 is connected to the damper II 12, and the connecting block 7 is driven to vibrate through the connecting frame 4, so that the connecting block 7 squeezes the shock-absorbing spring II 10 to compress and reduce shock.

[0023] When the chassis 1 is running, the sound insulation cotton I2 and the sound insulation cotton II 13 play a role of sound insulation, reducing the diffusion range of the noise inside the chassis 1. When the chassis 1 drives the connecting plate 3 to vibrate, the limit block 6 and the baffle 14 cooperate to limit the connecting plate 3, so that the connecting plate 3 moves downward to squeeze the shock-absorbing spring I5, and the shock-absorbing spring I5 is compressed to play a shock-absorbing role, thereby vertically absorbing the chassis 1 to prevent the chassis 1 from vibrating too much and generating noise. When the connecting plate 3 moves downward, the damper I11 increases the friction between the connecting plate 3 and the connecting frame 4, so that the connecting plate 3 It can move slowly. At the same time, the connecting frame 4 is affected by the connecting plate 3 to vibrate. The connecting frame 4 drives the connecting block 7 to vibrate, so that it moves left and right along the connecting rod 8, and then squeezes and pulls the corresponding shock-absorbing spring Ⅱ10, so that multiple shock-absorbing springs Ⅱ10 are compressed and stretched respectively, thereby performing horizontal shock absorption on the chassis 1, further avoiding the chassis 1 from vibrating too much and generating noise, and ensuring the health of the surrounding residents. When the connecting block 7 moves left and right, the damper Ⅱ12 increases the friction between the connecting block 7 and the fixed plate 9, so that the connecting block 7 can move slowly.

[0024] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A noise reduction fan box, comprising a box body (1), characterized in that: The invention also comprises sound insulation cotton I (2), sound insulation cotton II (13), a connecting plate (3), a connecting frame (4), a shock absorbing spring I (5) and a damper I (11). The sound insulation cotton I (2) is connected to the left and right side walls inside the chassis (1), and the sound insulation cotton II (13) is connected to the left and right side walls outside the chassis (1). The lower part of the chassis (1) is provided with a connecting plate (3) distributed on the left and right sides. The connecting plate (3) slides inside the connecting frame (4), and at least two shock absorbing springs I (5) are connected between the connecting plate (3) and the connecting frame (4). The damper I (11) distributed front and back is installed inside the connecting frame (4), and the connecting plate (3) is connected to the damper I (11).

2. A noise reduction fan box according to claim 1, characterized in that: It also includes a limiting block (6), and the upper part of the inner portion of the connection frame (4) is connected to the limiting block (6).

3. A noise reduction fan box according to claim 2, characterized in that: A soft cushion is provided on the side of the limit block (6) that contacts the connecting plate (3).

4. A noise reduction fan box according to claim 3, characterized in that: The invention also comprises a connecting block (7), a connecting rod (8), a shock absorbing spring II (10) and a damper II (12); the connecting block (7) is fixedly connected to the bottom of the connecting frame (4); the connecting rods (8) distributed front and rear are fixedly connected to the fixing plate (9); the connecting block (7) slides between the two connecting rods (8); two shock absorbing springs II (10) are sleeved on both left and right ends of the connecting rods (8); the dampers II (12) distributed left and right are installed on the fixing plate (9); and the connecting block (7) is connected to the dampers II (12).

5. A noise reduction fan box according to claim 4, characterized in that: It also includes baffles (14), and the upper part of the connection frame (4) is connected to the baffles (14) distributed front and back.

6. A noise reduction fan box according to claim 5, characterized in that: It also includes a sponge pad (15), the bottom of the baffle (14) is connected to the sponge pad (15) for protection, and the connecting plate (3) is in contact with the sponge pad (15).

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