Air purifier with noise reduction structure
By introducing a shock-absorbing and noise-reducing component consisting of an oil reservoir, piston rod, buffer spring, and sound-collecting cotton into the air purifier, combined with a fixing component consisting of a telescopic cylinder and a limit column, the problems of high noise and unstable fan in air purifiers are solved, achieving noise reduction and improved stability.
Patent Information
- Application Number
- CN202520435127.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Traditional air purifiers are noisy during operation, and the fans are prone to vibration, displacement, or loosening, affecting stability and purification efficiency.
The system employs vibration damping and noise reduction components, including an oil reservoir, piston rod, buffer spring, and sound-collecting cotton, combined with a fixing component. The system absorbs vibration by generating damping force through the flow of hydraulic oil, and ensures the stability of the fan by using a telescopic cylinder and a limit post.
It significantly reduces the operating noise of the air purifier, improves structural stability and durability, provides a quiet and comfortable indoor environment, and ensures the stability and accuracy of the fan during operation.
Smart Images

Figure CN223882488U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air purifier technical field especially air purifier with noise reduction structure. BACKGROUND
[0002] With the increasingly serious air pollution, air purifier becomes more and more widely and important in indoor environment.
[0003] However, the traditional air purifier is large in noise in the running process, can easily affect the comfort experience of user, secondly, the mode of fixed fan is too simple, leads to the fan to easily produce vibration, noise in the working process, even displacement or loosening, and further influence the stability and purification efficiency of air purifier. SUMMARY
[0004] The utility model discloses a air purifier with noise reduction structure to solve the problem in the background art.
[0005] In order to achieve the above object, the utility model provides the following technical scheme: it includes the casing, is provided with the baffle in the casing, the filter core is provided at the bottom of baffle, is provided with the damping and noise reduction subassembly on the baffle, is provided with fixed subassembly on the damping and noise reduction subassembly.
[0006] As the utility model prefers, the damping and noise reduction subassembly includes the ventilation opening opened on the baffle, is provided with a plurality of guide column guide bushings on the baffle, each guide column guide bushing is slidably provided with the mounting column in, the casing inner wall on both sides of baffle is provided with the pickup cotton.
[0007] As the utility model prefers, the bottom of each guide column guide bushing is provided with the oil storage cylinder, the bottom of each mounting column is provided with the piston rod, the bottom of each piston rod is provided with piston one, each piston one is slidably arranged in the oil storage cylinder, and the buffer spring is arranged between the top of same side piston rod and the bottom of oil storage cylinder.
[0008] As the utility model prefers, the fixed subassembly includes the mounting plate one setting at the top of mounting column, the mounting plate two is provided on one side of mounting plate one, the telescopic cylinder is provided on the mounting plate two, the bearing seat is provided in the middle of mounting plate one, the rotating shaft is inserted in the bearing seat, the rotating table is sleeved on the outer side of rotating shaft, and the placing table is arranged at the top of rotating shaft.
[0009] As the utility model is preferred, one side of installation board one is provided with slide rail one, driving block one is arranged in slide rail one and is connected with the top of telescopic rod of telescopic cylinder, the bottom of driving block one is provided with connecting rod one, the end of connecting rod one away from driving block one is connected with rotating table, one side of rotating table away from connecting rod one is provided with a pair of connecting rod two, both sides of two connecting rod two are provided with slide rail two, both sides of two slide rail two are arranged with driving block two, the bottom of driving block two is connected with connecting rod two, the top of driving block one and driving block two is provided with limiting post, and the outside of each limiting post is provided with sponge pad.
[0010] As the utility model is preferred, the fan is arranged on the placing table, the fan is located between the limiting posts, the air vent is provided with a fairing, the fairing is provided with a transmission pipeline between one side and the fan, and the fan top is provided with a air outlet.
[0011] As the utility model is preferred, the bottom of the shell is provided with air inlet holes, and the top of the shell is provided with an air outlet.
[0012] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:
[0013] 1、The utility model discloses a shock-absorbing and noise-reducing assembly is arranged, realizes the effective absorption of the vibration inside air purifier and the substantial reduction of noise, the combination of oil storage cylinder, piston rod, piston one and buffer spring, buffer spring absorbs vibration, and the damping force is generated by the flow of hydraulic oil, reduces the rebound speed of buffer spring, efficiently absorbs the vibration generated by the fan, reduces the amplitude of its transmission to the shell or other components, significantly reduces the operation noise of air purifier, and improves the stability and durability of the overall structure, provides more quiet, comfortable indoor environment for the user.
[0014] 2、The utility model discloses a fixing assembly is arranged, ensures the stability and accuracy of the fan, through the cooperation of telescopic cylinder, driving block one, connecting rod one, driving block two, connecting rod two and rotating table, the position of limiting post can be accurately adjusted, realizes the effective clamping of the fan, prevents its displacement or loosening in the working process due to vibration, in addition, slide rail one and slide rail two provide smooth, reliable sliding track for driving block one and driving block two respectively, ensure the smoothness and accuracy of the adjustment process, besides, the sponge pad outside limiting post not only increases the friction, improves the clamping effect, but also can effectively absorb part of vibration and noise, further improves the overall performance of air purifier. ACCURACY
[0015] Figure 1 It is the whole structure schematic view of the utility model;
[0016] Figure 2 It is the whole internal structure schematic view of the utility model;
[0017] Figure 3 It is the shock absorption and noise reduction assembly structure schematic view of the utility model;
[0018] Figure 4 It is the buffer spring structure schematic view in the shock absorption and noise reduction assembly of the utility model;
[0019] Figure 5 It is the fixed assembly structure schematic view of the utility model;
[0020] Figure 6 It is the limiting post structure schematic view in the fixed assembly of the utility model;
[0021] Figure 7 It is the fan structure schematic view in the fixed assembly of the utility model.
[0022] The drawing mark: casing 1, air inlet 11, air outlet 12, baffle 2, filter core 3, shock absorption and noise reduction assembly 4, ventilation opening 41, guide column guide sleeve 42, mounting column 43, oil storage cylinder 44, piston rod 45, piston one 46, buffer spring 47, pickup cotton 48, fixed assembly 5, mounting plate one 51, mounting plate two 52, telescopic cylinder 53, bearing seat 54, rotating shaft 55, rotary table 56, placing table 57, slide rail one 58, drive block one 59, connecting rod one 510, connecting rod two 511, slide rail two 512, drive block two 513, limiting post 514, sponge pad 515, fan 516, flow guide cover 517, transmission pipeline 518, air outlet 519. DETAILED DESCRIPTION
[0023] To make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is explained in further detail below by combining with specific implementation manners and referring to the drawings. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0024] As Figures 1-7 Indicated, the utility model provides air purifier with noise reduction structure, it includes casing 1, be provided with baffle 2 in casing 1, baffle 2 divides into different areas inside casing 1, ensure that air can enter fan 516 after passing through filter core 3 filtration, baffle 2 bottom is provided with filter core 3, baffle 2 is provided with shock absorption and noise reduction assembly 4, shock absorption and noise reduction assembly 4 is provided with fixed assembly 5.
[0025] The shock-absorbing and noise-reducing assembly 4 comprises a ventilation opening 41 formed in the partition plate 2, the ventilation opening 41 is an air flow channel, which allows the air purified by the filter element 3 to smoothly enter the fan 516, a plurality of guide column guide sleeves 42 are arranged on the partition plate 2, the guide column guide sleeves 42 provide guidance and support for the mounting columns 43, and ensure the stability and accuracy of the mounting columns 43 during movement, the mounting columns 43 are slidingly arranged in the guide column guide sleeves 42, and provide mounting bases for the mounting plate 51, the sound pickup cotton 48 is arranged on the inner walls of the two sides of the casing 1 of the partition plate 2, and the sound pickup cotton 48 is a sound-absorbing material, which is attached to the inner walls of the casing 1 and used for absorbing noise generated during the operation of the air purifier.
[0026] The bottom of each guide column guide sleeve 42 is provided with an oil storage cylinder 44, the oil storage cylinder 44 is filled with hydraulic oil, when the piston rod 45 moves in the cylinder, the hydraulic oil flows through the small holes on the piston 46 to generate damping force, thereby absorbing and slowing down the vibration, the bottom of each mounting column 43 is provided with a piston rod 45, the piston rod 45 provides a mounting base for the piston 46, the bottom of each piston rod 45 is provided with a piston 46, and each piston 46 is slidingly arranged in the oil storage cylinder 44, when the piston 46 moves in the oil storage cylinder 44, the damping effect is generated by the flow of the hydraulic oil, and the buffer spring 47 is arranged between the top of the piston rod 45 on the same side and the bottom of the oil storage cylinder 44, the buffer spring 47 absorbs and disperses vibration energy, thereby reducing the noise generated during the operation of the fan 516.
[0027] The fixing assembly 5 comprises the mounting plate 51 arranged at the top of the mounting column 43, the mounting plate 51 provides mounting bases for other components in the fixing assembly 5, one side of the mounting plate 51 is provided with the mounting plate 52, the mounting plate 52 provides a mounting base for the telescopic cylinder 53, the mounting plate 52 is provided with the telescopic cylinder 53, the telescopic cylinder 53 drives the driving block 59 to move by elongation and shortening of the telescopic rod, the middle of the mounting plate 51 is provided with the bearing seat 54, the bearing seat 54 provides stable support for the rotating shaft 55, thereby ensuring the stability of the rotating shaft 55 during rotation, the bearing seat 54 is inserted with the rotating shaft 55, the rotating shaft 55 provides mounting bases for the rotating table 56 and the placing table 57, the rotating shaft 55 is sleeved with the rotating table 56, when the driving block 59 moves along the sliding rail 58, power can be transmitted to the rotating table 56 through the connecting rod 510, so that the rotating table 56 rotates, power is transmitted to the connecting rod 511 and the driving block 513, the top of the rotating shaft 55 is provided with the placing table 57, and the placing table 57 provides a mounting base for the fan 516.
[0028] The installation plate 51 is provided with a slide rail 58 on one side, and a driving block 59 is slidably arranged in the slide rail 58. One side of the driving block 59 is connected with the top of the telescopic rod of the telescopic cylinder 53. The slide rail 58 provides a sliding track for the driving block 59, ensuring the stability and accuracy of the driving block 59 during movement. The bottom of the driving block 59 is provided with a connecting rod 510. One end of the connecting rod 510 away from the driving block 59 is connected with the rotating table 56. When the driving block 59 moves, it transmits power to the rotating table 56 through the connecting rod 510. One side of the rotating table 56 away from the connecting rod 510 is provided with a pair of connecting rods 511. Each of the two connecting rods 511 is provided with a slide rail 512. A driving block 513 is slidably arranged in each of the two slide rails 512. The slide rail 512 provides a sliding track for the driving block 513, ensuring the stability and accuracy of the driving block 513 during movement. One side of the bottom of the driving block 513 is connected with the connecting rod 511. When the rotating table 56 rotates, it transmits power to the driving block 513 through the connecting rod 511, so that the driving block 513 moves along the slide rail 512. Limiting columns 514 are arranged on the driving block 59 and the driving block 513. Sponge pads 515 are arranged on the outer sides of each limiting column 514. The limiting columns 514 are used to fix the fan 516 and prevent it from moving during work. The sponge pads 515 increase friction and absorb part of the vibration, reducing noise.
[0029] The placing table 57 is provided with a fan 516. The fan 516 is located between the limiting columns 514. The fan 516 accelerates the flow of air, improving the purification efficiency. The air vent 41 is provided with a flow guide cover 517. The flow guide cover 517 guides the air passing through the filter element 3 into the transmission pipeline 518, ensuring the smoothness and directionality of the air flow. The transmission pipeline 518 is arranged between one side of the flow guide cover 517 and the fan 516. The transmission pipeline 518 transmits air from the flow guide cover 517 to the fan 516. The top of the fan 516 is provided with an air outlet 519. The air outlet 519 discharges the filtered air from the air purifier into the indoor environment.
[0030] Air inlet holes 11 are formed around the bottom of the casing 1. The air inlet holes 11 formed around the casing 1 allow external air to enter. The casing 1 is provided with an air outlet 12 on the top. The air outlet 12 on the top of the casing 1 can discharge the purified air.
[0031] In use, the fan 516 is placed on the placing table 57, the telescopic rod of the telescopic cylinder 53 is elongated, the driving block I 59 is moved along the slide rail I 58, the driving block I 59 transmits power to the rotating table 56 through the connecting rod I 510, the rotating table 56 drives the two driving blocks II 513 to move along the slide rail II 512 through the connecting rod II 511, so that the plurality of limiting columns 514 approach the center of the circle to clamp the fan 516, the sponge pad 515 can not only increase the friction between the limiting column 514 and the fan 516, but also can absorb the vibration of the fan 516 during work, thereby reducing the noise.
[0032] When the air purifier is turned on, the external air can enter the shell 1 through the air inlets around, and then flow into the fan 516 through the air filter 3, the air vent 41 on the partition 2, the flow guide cover 517 and the transmission pipeline 518. The fan 516 sends the filtered air out through the air outlet 12 on the top of the shell 1 and the air outlet 519. The fan 516 can accelerate the air purification process and improve the working efficiency of the air purifier. The fan 516 will vibrate during operation, thereby generating noise. The buffer spring 47 can effectively absorb the vibration. At the same time, the mounting plate I 51 and the mounting column 43 will push the piston rod 45 and the piston I 46 at the bottom to move in the oil storage cylinder 44. The piston I 46 divides the space in the oil storage cylinder 44 into two cavities. The hydraulic oil in the oil storage cylinder 44 will flow back and forth from one cavity to another through different small holes on the piston I 46. During the flow of the hydraulic oil, the friction between the hole wall and the hydraulic oil and the internal friction between the hydraulic oil molecules will hinder the flow of the hydraulic oil, thereby generating a damping force to slow down the rebound speed of the buffer spring 47, avoid the vibration caused by the rapid rebound of the buffer spring 47, thereby ensuring the stability of the mounting frame I and the components thereon, effectively reducing the noise, and the pickup cotton 48 on the inner wall of the shell 1 can also effectively absorb the noise, ensuring the comfort of the user during use.
[0033] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.
Claims
1. An air cleaner having a noise reduction structure, comprising: The shell (1) is characterized in that: the shell (1) is provided with a partition plate (2), the bottom of the partition plate (2) is provided with a filter core (3), the partition plate (2) is provided with a damping and noise reduction assembly (4), and the damping and noise reduction assembly (4) is provided with a fixing assembly (5).
2. The air cleaner having a noise reduction structure according to claim 1, characterized by: The damping and noise reduction assembly (4) comprises a ventilation opening (41) formed in the partition plate (2), a plurality of guide column guide sleeves (42) are arranged on the partition plate (2), an installation column (43) is slidably arranged in each guide column guide sleeve (42), and pickup cotton (48) is arranged on the inner walls of the shells (1) on both sides of the partition plate (2). 3.The air cleaner having a noise reduction structure according to claim 2, characterized in that: An oil storage cylinder (44) is arranged at the bottom of each guide column guide sleeve (42), a piston rod (45) is arranged at the bottom of each installation column (43), a piston one (46) is arranged at the bottom of each piston rod (45), each piston one (46) is slidably arranged in the oil storage cylinder (44), and a buffer spring (47) is arranged between the top of the piston rod (45) and the bottom of the oil storage cylinder (44) on the same side.
4. The air cleaner having a noise reduction structure according to claim 3, characterized in that: The fixing assembly (5) comprises an installation plate one (51) arranged at the top of the installation column (43), an installation plate two (52) arranged on one side of the installation plate one (51), a telescopic cylinder (53) arranged on the installation plate two (52), a bearing seat (54) arranged in the middle of the installation plate one (51), a rotating shaft (55) inserted into the bearing seat (54), a rotating table (56) sleeved on the outer side of the rotating shaft (55), and a placing table (57) arranged at the top of the rotating shaft (55).
5. The air cleaner having a noise reduction structure according to claim 4, characterized in that: One side of the installation plate one (51) is provided with a sliding rail one (58), a driving block one (59) is slidably arranged in the sliding rail one (58), one side of the driving block one (59) is connected with the top of the telescopic rod of the telescopic cylinder (53), the bottom of the driving block one (59) is provided with a connecting rod one (510), one end of the connecting rod one (510) away from the driving block one (59) is connected with the rotating table (56), one side of the rotating table (56) away from the connecting rod one (510) is provided with a pair of connecting rod twos (511), one side of each of the two connecting rod twos (511) is provided with a sliding rail two (512), a driving block two (513) is slidably arranged in each of the two sliding rail twos (512), one side of the bottom of the driving block two (513) is connected with the connecting rod two (511), and the driving block one (59) and the driving block two (513) are both provided with a limiting column (514), and the outer side of each limiting column (514) is provided with a sponge pad (515). 6.The air cleaner having a noise reduction structure according to claim 5, wherein: The placing table (57) is provided with a fan (516), the fan (516) is located between the limiting columns (514), the ventilation opening (41) is provided with a guide cone (517), a transmission pipeline (518) is arranged between one side of the guide cone (517) and the fan (516), and the top of the fan (516) is provided with a air supply opening (519). 7.The air cleaner having a noise reduction structure according to claim 6, wherein: Air inlet holes (11) are formed in the periphery of the bottom of the shell (1), and an air outlet (12) is arranged at the top of the shell (1).