Shock-absorbing and noise-reducing centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal ventilators, and discloses a shock-absorbing and noise-reducing centrifugal ventilator which comprises a mounting frame, a mounting shell is fixedly mounted on the top of the mounting frame, shock-absorbing and noise-reducing mechanisms are arranged in the mounting shell and on the top of the mounting shell, and a centrifugal ventilator body is arranged on the tops of the shock-absorbing and noise-reducing mechanisms. And an adjusting shockproof mechanism is arranged in the mounting frame. According to the centrifugal fan capable of absorbing shock and reducing noise, generated shock can be buffered and decomposed by arranging the shock-absorbing and noise-reducing mechanism, under the auxiliary action of sound-absorbing cotton, the phenomenon that the centrifugal fan body is too loud in shock sound or damaged can be avoided, the sound-absorbing cotton can be quickly mounted and dismounted, and the shock-absorbing and noise-reducing mechanism is arranged, so that the shock-absorbing and noise-reducing effects are improved. The positions of the universal wheels can be dynamically adjusted, the whole centrifugal fan body is stably supported when the centrifugal fan body operates, unnecessary vibration is effectively reduced, and the practicability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan with vibration reduction and noise reduction. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine and is widely used in various production processes.

[0003] According to the description of a centrifugal fan with shock absorption and noise reduction function disclosed in the patent website (authorization announcement number: CN218669963U), "The utility model discloses a centrifugal fan with shock absorption and noise reduction function, including a box body and a centrifugal fan, a plurality of rollers are rotatably installed on the box body, a bottom plate is fixedly installed on the box body, a plurality of spring rods are fixedly installed on the bottom plate, a pad is fixedly installed on the plurality of spring rods, the centrifugal fan and the pad are fixedly connected, and a plurality of magnets are fixedly installed on the pad. The advantage is that by absorbing the noise generated by the centrifugal fan in the box body, the noise of the centrifugal fan can be effectively reduced to a certain extent, and noise pollution can be reduced. At the same time, shock absorption and buffering can be performed between the pad and the bottom plate and between the pad and the box body, effectively reducing the vibration generated during the operation of the centrifugal fan."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, although the utility model can absorb the noise generated by the centrifugal fan in the box, and can effectively reduce the noise of the centrifugal fan and reduce noise pollution to a certain extent, in actual applications, the position of the roller of the device is relatively fixed. When the centrifugal fan is running, the device as a whole is prone to shaking, generating unnecessary vibrations. In addition, as the sound-absorbing work of the device continues, the sound-absorbing cotton is prone to poor sound absorption effect, and it is difficult to replace it. Therefore, we urgently need to improve a centrifugal fan with shock absorption and noise reduction to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a centrifugal fan with vibration reduction and noise reduction to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal fan with shock absorption and noise reduction, comprising a mounting frame, a mounting shell is fixedly mounted on the top of the mounting frame, a shock absorption and noise reduction mechanism is arranged inside and on the top of the mounting shell, a centrifugal fan body is arranged on the top of the shock absorption and noise reduction mechanism, and an adjustable shockproof mechanism is arranged inside the mounting frame.

[0008] The shock absorption and noise reduction mechanism includes a shock absorption component and a noise reduction component. The shock absorption component is arranged inside the installation housing, and the noise reduction component is arranged inside and on the top of the installation housing.

[0009] Preferably, the shock absorption component includes an installation frame and an installation top plate. The installation frame is fixedly installed inside the installation housing. An activity frame is slidably installed inside the installation frame. A first spring is arranged outside the activity frame, and a damper body is arranged inside the first spring. A connecting plate is rotatably installed on the top of the activity frame. A connecting frame is fixedly installed at the bottom of the installation top plate. An expansion rod is arranged inside the installation frame, which is convenient for buffering and decomposing the generated vibration, and avoiding the phenomenon that the vibration sound of the centrifugal ventilator body is too large or the centrifugal ventilator body is damaged.

[0010] Preferably, an installation groove is opened at a position corresponding to the activity frame inside the installation frame. The first spring is arranged between the installation groove and the activity frame. The connecting plate and the connecting frame are rotatably installed inside. The top of the expansion rod is fixedly installed at the bottom of the installation top plate. The centrifugal ventilator body is arranged on the top of the installation top plate, which is convenient for decomposing the generated vibration.

[0011] Preferably, the noise reduction component includes a sound-absorbing cotton. The sound-absorbing cotton is slidably installed inside the installation housing. A connecting top plate is fixedly installed at the top of the sound-absorbing cotton. A first handle is fixedly installed at the top of the connecting top plate. A fixed sleeve is fixedly installed inside the sound-absorbing cotton. An activity column is slidably installed inside the fixed sleeve. A second spring is arranged inside the fixed sleeve, which is convenient for absorbing and decomposing the generated noise, and the sound-absorbing cotton can be quickly replaced according to requirements.

[0012] Preferably, the second spring is arranged between the fixed sleeve and the activity column. A plug hole is opened at a position corresponding to the activity column on the installation housing, which is convenient for quickly installing and disassembling the sound-absorbing cotton.

[0013] Preferably, the adjusting and shock-proof mechanism includes a fixed frame. The fixed frame is fixedly installed at the bottom end inside the installation frame. A bidirectional screw is rotatably installed inside the fixed frame. A second handle is fixedly installed outside the bidirectional screw. A limiting rod is fixedly installed inside the fixed frame. A first movable block is threadedly installed outside the bidirectional screw. An activity plate is slidably installed inside the installation frame. A guide rail is fixedly installed at the top of the activity plate. A second movable block is slidably installed outside the guide rail. A connecting rod is rotatably installed outside the first movable block. A universal wheel is arranged at the bottom of the activity plate, which is convenient for stably supporting the whole centrifugal ventilator body during operation and effectively reducing unnecessary vibration generation.

[0014] Preferably, two sets of the first movable block and the second movable block are provided. The bottom of the connecting rod is rotatably installed on the outside of the second movable block. A limiting chute is provided at a position corresponding to the movable plate inside the mounting frame. A through hole is provided at a position corresponding to the limiting rod on the first movable block. The limiting rod passes through the through hole, facilitating dynamic adjustment of the position of the universal wheel.

[0015] Compared with the prior art, the present utility model provides a centrifugal ventilator with shock absorption and noise reduction, having the following beneficial effects:

[0016] 1. For this centrifugal ventilator with shock absorption and noise reduction, by providing a shock absorption and noise reduction mechanism, during use, the generated vibrations can be buffered and decomposed. With the auxiliary effect of the sound-absorbing cotton, it can prevent the centrifugal ventilator body from making excessive vibration sounds or being damaged, and the sound-absorbing cotton can be quickly installed and disassembled.

[0017] 2. For this centrifugal ventilator with shock absorption and noise reduction, by providing an adjustment and shockproof mechanism, during use, the position of the universal wheel can be dynamically adjusted, and when the centrifugal ventilator body is operating, it can stably support the whole, effectively reducing unnecessary vibrations and enhancing the practicability of the device. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0019] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the disassembled structure of the shock absorption component of the present utility model;

[0022] Figure 4 It is a schematic diagram of the disassembled structure of the noise reduction component of the present utility model;

[0023] Figure 5 It is a schematic diagram of the disassembled structure of the adjustment and shockproof mechanism of the present utility model.

[0024] In the figure: 1, mounting frame; 2, mounting housing; 3, shock absorption and noise reduction mechanism; 31, shock absorption component; 311, mounting frame; 312, mounting top plate; 313, movable frame; 314, first spring; 315, damper body; 316, connecting plate; 317, connecting frame; 318, telescopic rod; 32, noise reduction component; 321, sound-absorbing cotton; 322, connecting top plate; 323, first handle; 324, fixed sleeve; 325, movable column; 326, second spring; 4, centrifugal fan body; 5, adjustment and shockproof mechanism; 51, fixed frame; 52, bidirectional screw; 53, second handle; 54, limiting rod; 55, first movable block; 56, movable plate; 57, guide rail; 58, second movable block; 59, connecting rod; 510, universal wheel. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] Please refer to Figures 1-4 , the present invention provides a technical solution: a centrifugal fan with shock absorption and noise reduction, including a mounting frame 1, a mounting housing 2 is fixedly installed on the top of the mounting frame 1, a shock absorption and noise reduction mechanism 3 is arranged inside and on the top of the mounting housing 2, a centrifugal fan body 4 is arranged on the top of the shock absorption and noise reduction mechanism 3, and an adjustment and shockproof mechanism 5 is arranged inside the mounting frame 1.

[0029] The shock absorption and noise reduction mechanism 3 includes a shock absorption component 31 and a noise reduction component 32. The shock absorption component 31 is arranged inside the mounting housing 2, and the noise reduction component 32 is arranged inside and on the top of the mounting housing 2.

[0030] Furthermore, the shock absorption assembly 31 includes a mounting frame 311 and a mounting top plate 312. The mounting frame 311 is fixedly installed inside the mounting housing 2. An activity frame 313 is slidably installed inside the mounting frame 311. A first spring 314 is arranged outside the activity frame 313, and a damper body 315 is arranged inside the first spring 314. A connecting plate 316 is rotatably installed at the top of the activity frame 313. A connecting frame 317 is fixedly installed at the bottom of the mounting top plate 312. A telescopic rod 318 is arranged inside the mounting frame 311, which is convenient for buffering and decomposing the generated vibration, and avoiding the phenomenon that the vibration sound of the centrifugal ventilator body 4 is too large or damaged.

[0031] Furthermore, mounting grooves are formed at positions corresponding to the activity frame 313 inside the mounting frame 311. The first spring 314 is arranged between the mounting groove and the activity frame 313. The connecting plate 316 and the connecting frame 317 are rotatably installed inside. The top of the telescopic rod 318 is fixedly installed at the bottom of the mounting top plate 312. The centrifugal ventilator body 4 is arranged on the top of the mounting top plate 312, which is convenient for decomposing the generated vibration.

[0032] Furthermore, the noise reduction assembly 32 includes a sound-absorbing cotton 321. The sound-absorbing cotton 321 is slidably installed inside the mounting housing 2. A connecting top plate 322 is fixedly installed at the top of the sound-absorbing cotton 321. A first handle 323 is fixedly installed at the top of the connecting top plate 322. A fixed sleeve 324 is fixedly installed inside the sound-absorbing cotton 321. An activity column 325 is slidably installed inside the fixed sleeve 324. A second spring 326 is arranged inside the fixed sleeve 324, which is convenient for absorbing and decomposing the generated noise, and the sound-absorbing cotton 321 can be quickly replaced according to needs.

[0033] Furthermore, the second spring 326 is arranged between the fixed sleeve 324 and the activity column 325. Insertion holes are formed at positions corresponding to the activity column 325 on the mounting housing 2, which is convenient for quickly installing and disassembling the sound-absorbing cotton 321.

[0034] Embodiment 2:

[0035] Please refer to Figure 5 , and in combination with Embodiment 1, it is further obtained that the adjusting anti-vibration mechanism 5 includes a fixed frame 51. The fixed frame 51 is fixedly installed at the bottom end inside the mounting frame 1. A bidirectional screw 52 is rotatably installed inside the fixed frame 51. A second handle 53 is fixedly installed outside the bidirectional screw 52. A limiting rod 54 is fixedly installed inside the fixed frame 51. A first movable block 55 is threadedly installed outside the bidirectional screw 52. An activity plate 56 is slidably installed inside the mounting frame 1. A guide rail 57 is fixedly installed at the top of the activity plate 56. A second movable block 58 is slidably installed outside the guide rail 57. A connecting rod 59 is rotatably installed outside the first movable block 55. A universal wheel 510 is arranged at the bottom of the activity plate 56, which is convenient for stably supporting the whole during the operation of the centrifugal ventilator body 4 and effectively reducing the generation of unnecessary vibration.

[0036] Furthermore, two sets of the first movable block 55 and the second movable block 58 are provided. The bottom of the connecting rod 59 is rotatably installed on the outside of the second movable block 58. Limited position sliding grooves are opened at the corresponding positions of the inside of the mounting frame 1 and the movable plate 56. Through holes are opened at the corresponding positions of the first movable block 55 and the limiting rod 54. The limiting rod 54 penetrates through the through holes, which is convenient for dynamically adjusting the position of the universal wheel 510.

[0037] During the actual operation process, when this device is used, first, under the action of the universal wheel 510, the whole device can be moved to the required location. Subsequently, to avoid the situation that the universal wheel 510 cannot stably support the whole device when generating a large vibration, the second handle 53 can be rotated to make the bidirectional screw 52 rotate. Under the action of the limiting rod 54, the two sets of first movable blocks 55 arranged can move away from each other, so that the arranged connecting rod 59 rotates, so that the second movable block 58 moves outside the guide rail 57, so that the movable plate 56 slides upward inside the mounting frame 1, so that the universal wheel 510 loses contact with the placement surface. Under the action of the bottom of the mounting frame 1, the whole device can be stably supported, avoiding the phenomenon that the centrifugal ventilator body 4 is damaged by vibration caused by unstable support. With the operation of the centrifugal ventilator body 4, when a large vibration occurs, the connecting plate 316 can be rotated, and under the action of the telescopic rod 318, the movement of the mounting top plate 312 can be supported. The rotation of the connecting plate 316 will make the movable frame 313 move inside the mounting groove. Under the action of the first spring 314 and the damper body 315, the generated vibration can be buffered and decomposed. At the same time, the generated vibration can be absorbed to a certain extent under the action of the sound-absorbing cotton 321 and the connecting top plate 322. With the continuous progress of the sound-absorbing work, when the sound-absorbing effect of the sound-absorbing cotton 321 is not good and it needs to be replaced, the movable column 325 can be pressed to make the movable column 325 slide inside the fixed sleeve 324, so that the movable column 325 loses the insertion with the insertion hole of the mounting shell 2. Subsequently, the first handle 323 is pulled to make the sound-absorbing cotton 321 slide and take it out. After the replacement is completed, the movable column 325 can be pressed to make the movable column 325 contract into the fixed sleeve 324, and then the first handle 323 is pressed downward. When the movable column 325 is opposite to the insertion hole of the mounting shell 2, under the action of the second spring 326, the position of the sound-absorbing cotton 321 can be fixed.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

Claims

1. A centrifugal fan for shock absorption and noise reduction, comprising a mounting frame (1), characterized in that: The top of the mounting frame (1) is fixedly installed with a mounting shell (2). Inside and at the top of the mounting shell (2), there is a shock and noise reduction mechanism (3). At the top of the shock and noise reduction mechanism (3), there is a centrifugal ventilator body (4). Inside the mounting frame (1), there is an adjustment and anti-vibration mechanism (5). The shock and noise reduction mechanism (3) includes a shock absorption component (31) and a noise reduction component (32). The shock absorption component (31) is arranged inside the mounting shell (2), and the noise reduction component (32) is arranged inside and at the top of the mounting shell (2).

2. The centrifugal fan for shock absorption and noise reduction according to claim 1, wherein: The shock absorption component (31) includes a mounting frame (311) and a mounting top plate (312). The mounting frame (311) is fixedly installed inside the mounting shell (2). An activity frame (313) is slidably installed inside the mounting frame (311). A first spring (314) is arranged outside the activity frame (313). A damper body (315) is arranged inside the first spring (314). A connecting plate (316) is rotatably installed at the top of the activity frame (313). A connecting frame (317) is fixedly installed at the bottom of the mounting top plate (312). An expansion rod (318) is arranged inside the mounting frame (311).

3. The centrifugal ventilator for shock absorption and noise reduction according to claim 2, wherein: Installation grooves are formed at positions corresponding to the activity frame (313) inside the mounting frame (311). The first spring (314) is arranged between the installation groove and the activity frame (313). The connecting plate (316) and the connecting frame (317) are rotatably installed inside. The top of the expansion rod (318) is fixedly installed at the bottom of the mounting top plate (312). The centrifugal ventilator body (4) is arranged on the top of the mounting top plate (312).

4. The centrifugal fan for shock absorption and noise reduction according to claim 1, wherein: The noise reduction component (32) includes a sound-absorbing cotton (321). The sound-absorbing cotton (321) is slidably installed inside the mounting shell (2). A connecting top plate (322) is fixedly installed at the top of the sound-absorbing cotton (321). A first handle (323) is fixedly installed at the top of the connecting top plate (322). A fixed sleeve (324) is fixedly installed inside the sound-absorbing cotton (321). An activity column (325) is slidably installed inside the fixed sleeve (324). A second spring (326) is arranged inside the fixed sleeve (324).

5. The centrifugal fan for shock absorption and noise reduction according to claim 4, characterized in that: The second spring (326) is arranged between the fixed sleeve (324) and the activity column (325). Insertion holes are formed at positions corresponding to the activity column (325) on the mounting shell (2).

6. The centrifugal ventilator for shock absorption and noise reduction according to claim 1, wherein: The described shock-absorbing adjustment mechanism (5) includes a fixed frame (51), the fixed frame (51) is fixedly installed at the inner bottom end of the mounting frame (1), a bidirectional screw (52) is rotatably installed inside the fixed frame (51), a second handle (53) is fixedly installed on the outside of the bidirectional screw (52), a limiting rod (54) is fixedly installed inside the fixed frame (51), a first movable block (55) is threadedly installed on the outside of the bidirectional screw (52), a movable plate (56) is slidably installed inside the mounting frame (1), a guide rail (57) is fixedly installed on the top of the movable plate (56), a second movable block (58) is slidably installed on the outside of the guide rail (57), a connecting rod (59) is rotatably installed on the outside of the first movable block (55), and a universal wheel (510) is arranged at the bottom of the movable plate (56).

7. The centrifugal ventilator for shock absorption and noise reduction according to claim 6, characterized in that: There are two sets each of the first movable block (55) and the second movable block (58), the bottom of the connecting rod (59) is rotatably installed on the outside of the second movable block (58), a limiting chute is opened at the corresponding position of the inner part of the mounting frame (1) and the movable plate (56), a through hole is opened at the corresponding position of the first movable block (55) and the limiting rod (54), and the limiting rod (54) penetrates through the through hole.

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