Noise reduction mounting device for central air conditioning unit

Abstract

The utility model relates to the technical field of central air conditioners, and discloses a central air conditioning unit noise reduction installation device which comprises a supporting table, a noise reduction box is fixedly connected to the upper surface of the supporting table, two first fixing boxes which are in bilateral symmetry are fixedly connected to the bottom of the inner wall of the noise reduction box, and first springs are slidably connected to the inner walls of the first fixing boxes. One end of the first spring is fixedly connected to one side of the inner wall of the first fixing box, the other end of the first spring is fixedly connected with a fixing piece, the outer wall of the fixing piece is slidably connected to the inner wall of the first fixing box, one side of the outer wall of the fixing piece is fixedly connected with a fixing shaft, and one end of the fixing shaft is fixedly connected with a hinge seat. According to the device, firstly, when the unit body operates, the effect of preliminarily weakening vibration noise is achieved through cooperation of the first spring, the fixing piece, the fixing shaft and the connecting rod, then the effect of further reducing noise is achieved through cooperation of the supporting column and the second spring, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of central air conditioning, in particular to a noise reduction installation device for a central air conditioning unit. Background Art

[0002] Central air conditioning units are a system used for centralized cooling or heating in large buildings, including air conditioning units, cooling water systems, air supply systems, and control systems. In order to solve the noise problem generated when the unit is running, it becomes necessary to use noise reduction installation devices. Noise reduction installation devices can reduce unit noise, improve indoor comfort, meet regulatory standards, and reduce vibration transmission. In addition, noise reduction devices can also extend the life of equipment and reduce wear and damage. Through the comprehensive application of noise reduction technology, central air conditioning units can be quieter during operation, providing a quiet and comfortable indoor environment in the building, meeting noise control requirements, while protecting equipment and extending service life.

[0003] After searching, the announcement number: CN212619245U discloses a noise processing device for a central air-conditioning unit, including a protective shell and an outer shell. The inner wall layer of the air inlet pipe is fixedly installed with sound-absorbing cotton. When the air-conditioning unit is working, the wind passes through the air inlet pipe to generate a vortex, and the sound-absorbing cotton can absorb the sound of the vortex, which is convenient for reducing the noise of the air inlet pipe. The stabilizing plate is sequentially installed with a waterproof layer, a noise reduction layer and a rubber shock-absorbing pad from bottom to top. The waterproof layer can prevent the accumulated water on the ground from eroding the stabilizing plate, the noise reduction layer can reduce the noise of the air-conditioning unit, and the rubber shock-absorbing pad is elastic and can The vibration caused by other components hitting the stabilizing plate is reduced, and the sound-absorbing effect is achieved. One end of the shock-absorbing block is fixedly installed inside the sleeve, and the other end is fixedly installed at the lower end of the outer shell. The vibration generated by the operation of the air-conditioning unit can be offset by the elasticity of the shock-absorbing spring, which can reduce the vibration of the control unit and thus reduce the noise generated by the vibration. Although the shock-absorbing block, rubber shock-absorbing pad and shock-absorbing spring are used to reduce shock and noise in the application, the shock-absorbing structure used in the application is too simple and lacks protection. At the same time, the shock-absorbing capacity is limited and the service life is also limited. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a noise reduction installation device for a central air-conditioning unit, aiming to improve the problem that the shock-absorbing spring structure in the prior art is relatively simple, the shock-absorbing capacity is limited, and the service life is relatively short.

[0005] The cam is secured to the bottom of the unit and is designed to be rotatable with respect to the bottom of the unit, wherein the cam is secured on the bottom of the unit and is rotatable with respect to the bottom of the unit.

[0006] Furthermore, the buffer assembly includes a second fixing box, the lower surface of which is fixedly connected to the bottom of the inner wall of the noise reduction box, a support column is slidably connected inside the second fixing box, the upper surface of the support column is fixedly connected to the lower surface of the mounting base, and the lower surface of the support column is fixedly connected to a second spring.

[0007] Furthermore, a heat dissipation fan is fixedly connected to one side of the upper surface of the support platform, and an output end of the heat dissipation fan is fixedly connected to one side inside the noise reduction box.

[0008] Furthermore, a sound absorbing layer 1 is provided through one side of the interior of the noise reduction box, and a vent is fixedly connected to the outer wall of the sound absorbing layer 1.

[0009] Furthermore, an air inlet is provided through the other side of the interior of the noise reduction box, and a drainage air duct is fixedly connected to one side adjacent to the air inlet.

[0010] Furthermore, a second sound absorbing layer is fixedly connected to the inner wall of the drainage air duct, and a third sound absorbing layer is fixedly connected to the air inlet of the drainage air duct.

[0011] Furthermore, a noise reduction plate is slidably connected inside the drainage air duct, and a dust removal plate is slidably connected to an adjacent side of the noise reduction plate.

[0012] Furthermore, a handle is fixedly connected to one side of the outer wall of the noise reduction plate and the dust removal plate, and the noise reduction plate and the dust removal plate are linearly arranged from the outside to the inside.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, firstly, when the unit body is running, the cooperation among the spring 1, the fixing plate, the fixing shaft and the connecting rod is used to achieve the effect of initially reducing the vibration noise generated by the unit body, and then the mutual cooperation between the support column and the spring 2 is used to further reduce the shaking noise, thereby solving the problem that the structure of the shock-absorbing and noise-reducing device in the prior art is relatively simple and prolonging the service life of the device.

[0015] 2. In the utility model, the airflow is quickly guided into the noise reduction box for use through the drainage duct, and the noise is reduced by multiple levels of sound absorption layer 2, sound absorption layer 3, and noise reduction board, so as to achieve the effect of preventing the noise generated by excessive airflow. Through the cooperation between the heat dissipation fan, the sound absorption layer 1, and the dust removal board, it is easy to reduce the heat inside the noise reduction box while reducing the dust entering the noise reduction box, which solves the problem that the unit body cannot be dusted in the prior art, and improves the cleanliness of the air used for air conditioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a noise reduction installation device for a central air-conditioning unit proposed by the utility model;

[0017] Figure 2 A cross-sectional schematic diagram of a noise reduction box of a noise reduction installation device for a central air conditioning unit proposed by the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the partial structure disassembly of a noise reduction installation device for a central air-conditioning unit proposed by the utility model.

[0020] Legend:

[0021] 1. Support platform; 2. Noise reduction box; 3. Fixed box one; 4. Spring one; 5. Fixed plate; 6. Fixed shaft; 7. Articulated seat; 8. Connecting rod; 9. Buffer assembly; 901. Fixed box two; 902. Support column; 903. Spring two; 10. Mounting base; 11. Slide; 12. Unit body; 13. Sliding block; 14. Cooling fan; 15. Sound absorbing layer one; 16. Ventilation port; 17. Air inlet; 18. Drainage duct; 19. Sound absorbing layer two; 20. Sound absorbing layer three; 21. Noise reduction board; 22. Dust removal board; 23. Handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-3 , the utility model provides an embodiment: a noise reduction installation device for a central air conditioning unit, comprising a support platform 1, a noise reduction box 2 is fixedly connected to the upper surface of the support platform 1, two fixed boxes 3 are fixedly connected to the bottom of the inner wall of the noise reduction box 2, a spring 4 is slidably connected to the inner wall of the fixed box 3, one end of the spring 4 is fixedly connected to one side of the inner wall of the fixed box 3, and the other end of the spring 4 is fixedly connected to a fixed sheet 5, the outer wall of the fixed sheet 5 is slidably connected to the inner wall of the fixed box 3, one side of the outer wall of the fixed sheet 5 is fixedly connected to a fixed shaft 6, one end of the fixed shaft 6 is fixedly connected to a hinge seat 7, the inner wall of the hinge seat 7 is rotatably connected to a connecting rod 8, the inner wall of the noise reduction box 2 A buffer assembly 9 is provided at the bottom, a mounting base 10 is hingedly connected to one side of the outer wall of the connecting rod 8, a slide groove 11 is provided inside the mounting base 10, the upper surface of the mounting base 10 is slidably connected to the unit body 12, a slider 13 is fixedly connected to the lower surface of the unit body 12, and the outer wall of the slider 13 is slidably connected to the inner wall of the slide groove 11; the buffer assembly 9 includes a second fixing box 901, the lower surface of the second fixing box 901 is fixedly connected to the bottom of the inner wall of the noise reduction box 2, a support column 902 is slidably connected inside the second fixing box 901, the upper surface of the support column 902 is fixedly connected to the lower surface of the mounting base 10, and the lower surface of the support column 902 is fixedly connected to a second spring 903;

[0024] Specifically, when the unit body 12 starts to run, a large amount of vibration pressure will be generated; in the process of noise control, the mounting base 10 plays a vital role. It transfers the pressure generated by the unit body 12 to the connecting rod 8, thereby achieving a smooth transition of pressure between components; the connecting rod 8 is connected to the hinge seat 7, and the hinge seat 7 is responsible for transferring the pressure to the fixed shaft 6; next, the fixed plate 5 is subjected to pressure, and through the elastic characteristics of the spring 1 4, part of the pressure is converted into elastic potential energy. This conversion process effectively reduces the pressure and reduces the possibility of noise generation. After the pressure is reduced, the support column 902 plays a bearing role and further transfers the pressure to the spring 2 903. The shaking elimination function of the spring 2 903 makes it possible for the pressure to no longer generate noise during the transmission process. By setting a soundproof glass inside the noise reduction box 2 to reduce noise, it is convenient to observe the operation of the unit body 12. The unit body 12 can be inspected by unscrewing the external bolts of the soundproof glass. By pulling the unit body 12, it is easy to drive the slider 13 to slide out, thereby achieving the effect of convenient maintenance.

[0025] Reference Figure 4 A heat dissipation fan 14 is fixedly connected to one side of the upper surface of the support platform 1, and the output end of the heat dissipation fan 14 is fixedly connected to one side of the inside of the noise reduction box 2; a sound-absorbing layer 15 is provided on one side of the inside of the noise reduction box 2, and a vent 16 is fixedly connected to the outer wall of the sound-absorbing layer 15; an air inlet 17 is provided on the other side of the inside of the noise reduction box 2, and a drainage duct 18 is fixedly connected to the adjacent side of the air inlet 17; a sound-absorbing layer 2 19 is fixedly connected to the inner wall of the drainage duct 18, and a sound-absorbing layer 3 20 is fixedly connected to the air inlet of the drainage duct 18;

[0026] Specifically, the airflow enters the noise reduction box 2 through the drainage duct 18. At this time, the airflow will pass through the sound absorbing layer 3 20; when the airflow passes through the inside of the noise reduction box 2, the sound absorbing layer is made of rock wool board, and the airflow will collide with the sound absorbing layer 2 19, which has excellent sound absorption performance. In this way, the airflow noise can be reduced. At this time, the airflow passes through the dust removal plate 22 again, and the noise generated by it will be greatly reduced, thereby achieving the initial noise reduction of the airflow. Next, the dust can be blocked inside the noise reduction box 2 to prevent dust from entering the inside of the unit body 12, and the airflow after noise reduction will flow to the noise reduction plate 21. Ensure the clean operation of the equipment. However, the role of the noise reduction plate 21 is to reduce the dust in the airflow for the second time, and the inside of the noise reduction box 2 will generate heat during operation; in order to prevent the temperature of the unit body 12 from being too high during operation, so when the airflow passes through the inside of the noise reduction box 2, we set up a start-up heat dissipation fan 14. Both noise and dust will be effectively controlled, improving the noise reduction effect. In addition, the function of the heat dissipation fan 14 is to reduce the temperature inside the noise reduction box 2 to ensure the normal operation of the device. A dust removal plate 22 is also provided inside the noise reduction box 2. At the same time, a vent 16 is also provided inside the noise reduction box 2 to facilitate the discharge of heat.

[0027] Reference Figure 1 and 4 A noise reduction plate 21 is slidably connected inside the drainage air duct 18, and a dust removal plate 22 is slidably connected to an adjacent side of the noise reduction plate 21; a handle 23 is fixedly connected to one side of the outer wall of the noise reduction plate 21 and the dust removal plate 22, and the noise reduction plate 21 and the dust removal plate 22 are linearly arranged from the outside to the inside;

[0028] Specifically, first of all, the noise reduction plate 21 and the dust removal plate 22 are key components of this device. During the operation of the equipment, the noise reduction plate 21 and the dust removal plate 22 can effectively capture dust particles in the air and prevent them from spreading, thereby reducing the dust content in the air. Secondly, the drainage duct 18 plays a role in guiding the airflow. It introduces dust-containing air into the interior of the equipment, filters it through the noise reduction plate 21 and the dust removal plate 22, and then discharges the purified air. This not only ensures the cleanliness of the interior of the equipment, but also avoids the impact of dust on the surrounding environment. For ease of use and maintenance, the user can pull the handle 23 as needed to remove the noise reduction plate 21 and the dust removal plate 22 from the interior of the drainage duct 18 for cleaning. This can not only ensure the cleanliness and efficient operation of the equipment, but also avoid the noise reduction effect affected by the dust on the outer walls of the noise reduction plate 21 and the dust removal plate 22.

[0029] Working principle: When the central air-conditioning unit needs to be noise-reduced, the unit body 12 starts to run, and a large amount of vibration pressure will be generated in the unit body 12. At this time, the pressure will be transmitted to the connecting rod 8 through the mounting base 10, thereby transmitting the pressure to the hinge seat 7, and the hinge seat 7 pushes the fixed shaft 6 to make the fixing plate 5 push the spring 4 to contract. Through the elastic characteristics of the spring 4, the effect of reducing part of the pressure is achieved. At this time, the mounting base 10 will transmit the pressure to the support column 902, thereby further transmitting the pressure to the spring 2 903 to eliminate the shaking. At this time, the unit body 12 will also generate airflow noise during operation. At this time, the airflow enters through the drainage duct 18. When the airflow passes through the sound-absorbing layer 3 20 made of rock wool board, the airflow generated by the airflow will be weakened. When the airflow passes through the noise reduction plate 21, The noise is reduced for the second time, thereby achieving the effect of further reducing noise. At the same time, when the airflow collides with the sound-absorbing layer 19, the airflow noise can also be weakened. At this time, when the airflow passes through the dust removal plate 22, the dust is blocked from entering the noise reduction box 2, thereby achieving the effect of preventing dust from entering the unit body 12. At this time, the heat dissipation fan 14 is started to cool the inside of the noise reduction box 2, thereby achieving the effect of preventing the unit body 12 from overheating during operation. The heat can be discharged through the vents 16 set inside the noise reduction box 2, and the noise can be prevented from flowing out through the sound-absorbing layer 15, thereby achieving the effect of efficient noise reduction and preventing vibration and noise caused by large airflow sound. The noise reduction plate 21 and the dust removal plate 22 can be taken out from the inside of the drainage duct 18 through the carrying handle 23, thereby achieving the effect of preventing the noise reduction from being affected by the dust on the outer walls of the noise reduction plate 21 and the dust removal plate 22.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise reduction installation device for a central air conditioning unit, comprising a support platform (1), characterized in that: The upper surface of the support platform (1) is fixedly connected to a noise reduction box (2); the bottom of the inner wall of the noise reduction box (2) is fixedly connected to two left-right symmetrical fixed boxes (3); the inner wall of the fixed box (3) is slidably connected to a spring (4); one end of the spring (4) is fixedly connected to one side of the inner wall of the fixed box (3); the other end of the spring (4) is fixedly connected to a fixing plate (5); the outer wall of the fixing plate (5) is slidably connected to the inner wall of the fixed box (3); one side of the outer wall of the fixing plate (5) is fixedly connected to a fixing shaft (6); the fixing shaft (6) One end is fixedly connected to an articulated seat (7), the inner wall of the articulated seat (7) is rotatably connected to a connecting rod (8), a buffer assembly (9) is provided at the bottom of the inner wall of the noise reduction box (2), one side of the outer wall of the connecting rod (8) is hingedly connected to a mounting base (10), a slide groove (11) is provided inside the mounting base (10), the upper surface of the mounting base (10) is slidably connected to a unit body (12), the lower surface of the unit body (12) is fixedly connected to a slider (13), and the outer wall of the slider (13) is slidably connected to the inner wall of the slide groove (11).

2. A noise reduction installation device for a central air conditioning unit according to claim 1, characterized in that: The buffer assembly (9) includes a second fixing box (901), the lower surface of which is fixedly connected to the bottom of the inner wall of the noise reduction box (2), a support column (902) is slidably connected inside the second fixing box (901), the upper surface of which is fixedly connected to the lower surface of the mounting base (10), and a second spring (903) is fixedly connected to the lower surface of the support column (902).

3. A noise reduction installation device for a central air conditioning unit according to claim 2, characterized in that: A heat dissipation fan (14) is fixedly connected to one side of the upper surface of the support platform (1), and an output end of the heat dissipation fan (14) is fixedly connected to one side inside the noise reduction box (2).

4. A noise reduction installation device for a central air conditioning unit according to claim 3, characterized in that: A sound absorbing layer (15) is provided through one side of the interior of the noise reduction box (2), and a vent (16) is fixedly connected to the outer wall of the sound absorbing layer (15).

5. A noise reduction installation device for a central air conditioning unit according to claim 4, characterized in that: An air inlet (17) is provided through the other side of the interior of the noise reduction box (2), and a drainage air duct (18) is fixedly connected to one side adjacent to the air inlet (17).

6. A noise reduction installation device for a central air conditioning unit according to claim 5, characterized in that: The inner wall of the drainage air duct (18) is fixedly connected to a second sound absorbing layer (19), and the air inlet of the drainage air duct (18) is fixedly connected to a third sound absorbing layer (20).

7. A noise reduction installation device for a central air conditioning unit according to claim 6, characterized in that: A noise reduction plate (21) is slidably connected inside the drainage air duct (18), and a dust removal plate (22) is slidably connected to an adjacent side of the noise reduction plate (21).

8. A noise reduction installation device for a central air conditioning unit according to claim 7, characterized in that: A handle (23) is fixedly connected to one side of the outer wall of the noise reduction plate (21) and the dust removal plate (22), and the noise reduction plate (21) and the dust removal plate (22) are arranged linearly from the outside to the inside.

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