Centrifugal fan capable of preventing shaking and impacting

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses a centrifugal fan capable of preventing shaking and impact, which comprises a mounting seat, an anti-shaking mechanism is arranged at the top of the mounting seat, a filtering mechanism is arranged at the top of the mounting seat, the anti-shaking mechanism comprises a damping component and a centrifugal component, and the centrifugal component is arranged at the top of the damping component. The fan base moves downwards, the connecting rod is pressed downwards, the connecting rod extrudes a first spring through a sliding block, the vibration strength is weakened, the fan base presses downwards to extrude a damping spring and a damping damper, meanwhile, the vibration strength is weakened, fan deflection caused by serious shaking and large strength is prevented, fan shaking and impacting are prevented, the fan is protected, and the service life of the fan is prolonged. Impurities in air are filtered through the filter plate, the impurities are prevented from entering the front frame to damage the impeller, the impeller is protected, the filter plate is taken down to be cleaned, and follow-up use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan capable of preventing shaking and collision. 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. Centrifugal fans generally connect the impeller shaft to the motor shaft through a coupling to transmit power. The rotation of the impeller will cause the centrifugal fan to vibrate, causing the centrifugal fan to shake.

[0003] According to the description of a centrifugal fan disclosed in the patent website (authorization announcement number: CN 220319948 U), "The utility model relates to the technical field of centrifugal fans, and discloses a centrifugal fan, including: a fan body, the fan body is connected to a mounting cylinder, the mounting cylinder is connected to a disassembly assembly, the disassembly assembly is connected to a filter screen, the filter screen is used to filter the gas entering the fan body, the mounting cylinder is used to remove the filter screen by disassembling the disassembly assembly, the fan body is provided with an air outlet and an air inlet, the fan body is fixedly installed with a mounting frame, the mounting cylinder is connected to the air inlet, the mounting cylinder is provided with a connecting part and a mounting part, and the connecting part is connected to the fan body by bolts. In the centrifugal fan, air enters the fan body after being filtered by the filter screen, and the oil in the air is adsorbed on the filter screen, so that the workpiece inside the fan body is not easy to adhere to the oil. When the filter screen is blocked, it is only necessary to disassemble the disassembly assembly on the mounting cylinder to remove the blocked filter screen. After cleaning the filter screen, the fan body can continue to be used. The operation is convenient and there is no need to disassemble the fan body for cleaning."

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

[0005] During use of the utility model, a clogged filter is removed by means of a disassembly assembly. However, in actual use, the rotation of the impeller causes the centrifugal fan to vibrate, thereby causing the centrifugal fan to shake. During the shaking process, if the ground on which the centrifugal fan is placed is uneven, the centrifugal fan may tilt, thereby causing damage to the centrifugal fan. Therefore, it is necessary to improve a centrifugal fan that can prevent shaking and collision to solve the above problem. Utility Model Content

[0006] The utility model aims to provide a centrifugal fan which can prevent shaking and collision, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal fan for preventing shaking and impact, comprising a mounting seat, an anti-swaying mechanism is arranged on the top of the mounting seat, and a filtering mechanism is arranged on the top of the mounting seat;

[0008] The anti-sway mechanism comprises a shock absorbing assembly and a centrifugal assembly, and the centrifugal assembly is arranged on the top of the shock absorbing assembly.

[0009] Preferably, the shock absorbing assembly includes a fixing plate, the fixing plate is fixedly mounted on the top of the mounting seat, a connecting rod is fixedly mounted on the inner side of the fixing plate, a sliding block is slidably mounted on the outer side of the connecting rod, a spring is fixedly mounted on the inner side of the sliding block, a connecting rod is rotatably mounted on the top of the sliding block, a shock absorbing spring is fixedly mounted on the top of the mounting seat, and a shock absorbing damper is fixedly mounted on the top of the mounting seat to prevent severe shaking and large force from causing the fan to tilt, to prevent the fan from shaking and colliding, and to protect the fan.

[0010] Preferably, the fixed plate, connecting rod, sliding block, spring 1, shock-absorbing spring and shock-absorbing damper are arranged in two groups and are symmetrically distributed on the left center line of the mounting seat, and the spring 1 is fixedly installed on the inner side of the two sliding blocks to weaken the intensity of vibration.

[0011] Preferably, the centrifugal assembly includes a fan base, which is rotatably mounted on the top of the connecting rod, a front frame is fixedly mounted on the top of the fan base, a mounting rear plate is fixedly mounted on the right side of the front frame, an impeller is rotatably mounted on the left side of the mounting rear plate, a filter plate is provided on the left side of the front frame, and a motor is fixedly mounted on the right side of the mounting rear plate to filter dust.

[0012] Preferably, the output end of the motor is fixedly mounted on the impeller, and the end of the shock-absorbing spring and the shock-absorbing damper away from the mounting seat is fixedly connected to the bottom of the fan base to weaken the intensity of the vibration.

[0013] Preferably, the filtering mechanism includes a fixing frame, which is fixedly installed on the left side of the front frame, a second spring is fixedly installed inside the fixing frame, a slider is fixedly installed on the end of the second spring away from the fixing frame, a shift block is fixedly installed on the left side of the slider, and an arc-shaped plug block is fixedly installed on the inner side of the slider, so that the filter plate can be removed and cleaned for subsequent use.

[0014] Preferably, a slide groove is provided at the corresponding positions of the fixing frame, the slider and the arc-shaped plug-in block, and the slider and the arc-shaped plug-in block are slidably installed inside the slide groove, a slot is provided at the corresponding positions of the filter plate and the arc-shaped plug-in block, and the arc-shaped plug-in block is plugged into the slot, and the filter mechanism is provided with two groups, which are symmetrically distributed on the left center line of the fan base, so that the filter plate is easy to disassemble.

[0015] Compared with the prior art, the utility model provides a centrifugal fan that prevents shaking and collision, and has the following beneficial effects:

[0016] 1. The centrifugal fan that prevents shaking and collision has an anti-sway mechanism. During use, the fan base moves down and presses down the connecting rod. The connecting rod squeezes the spring through the sliding block to weaken the vibration intensity. The fan base is pressed down to squeeze the shock-absorbing spring and shock-absorbing damping, which also weakens the vibration intensity and prevents severe shaking and large force from causing the fan to tilt, thereby preventing the fan from shaking and colliding, and protecting the fan.

[0017] 2. The centrifugal fan which prevents shaking and impact has a filtering mechanism. During use, impurities in the air are filtered through the filter plate to prevent the impurities from entering the front frame and damaging the impeller. The impeller is protected and the filter plate can be removed and cleaned for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the anti-sway mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the shock absorbing component of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the centrifugal assembly of the utility model;

[0023] Figure 5 It is a schematic diagram of the decomposition structure of the filtering mechanism of the utility model.

[0024] In the figure: 1. mounting base; 2. anti-sway mechanism; 21. shock absorbing assembly; 211. fixing plate; 212. connecting rod; 213. sliding block; 214. spring one; 215. connecting rod; 216. shock absorbing spring; 217. shock absorbing damping; 22. centrifugal assembly; 221. fan base; 222. front frame; 223. filter plate; 224. impeller; 225. rear mounting plate; 226. motor; 3. filtering mechanism; 31. fixing frame; 32. spring two; 33. sliding block; 34. shifting block; 35. arc plug-in block. DETAILED DESCRIPTION

[0025] 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.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a centrifugal fan for preventing shaking and impact, comprising a mounting seat 1, an anti-swaying mechanism 2 is arranged on the top of the mounting seat 1, and a filtering mechanism 3 is arranged on the top of the mounting seat 1;

[0029] The anti-sway mechanism 2 includes a shock absorbing component 21 and a centrifugal component 22 , and the centrifugal component 22 is arranged on the top of the shock absorbing component 21 .

[0030] Furthermore, the shock absorbing assembly 21 includes a fixed plate 211, which is fixedly installed on the top of the mounting seat 1, a connecting rod 212 is fixedly installed on the inner side of the fixed plate 211, a sliding block 213 is slidably installed on the outer side of the connecting rod 212, a spring 214 is fixedly installed on the inner side of the sliding block 213, a connecting rod 215 is rotatably installed on the top of the sliding block 213, a shock absorbing spring 216 is fixedly installed on the top of the mounting seat 1, and a shock absorbing damper 217 is fixedly installed on the top of the mounting seat 1 to prevent severe shaking and strong force from causing the fan to tilt, to prevent the fan from shaking and colliding, and to protect the fan.

[0031] Furthermore, two groups of fixed plate 211, connecting rod 212, sliding block 213, spring 1 214, shock absorbing spring 216 and shock absorbing damper 217 are arranged and symmetrically distributed on the left center line of mounting seat 1, and spring 1 214 is fixedly installed on the inner side of two sliding blocks 213 to weaken the intensity of vibration.

[0032] Furthermore, the centrifugal assembly 22 includes a fan base 221, which is rotatably mounted on the top of the connecting rod 215, a front frame 222 is fixedly mounted on the top of the fan base 221, a rear plate 225 is fixedly mounted on the right side of the front frame 222, an impeller 224 is rotatably mounted on the left side of the rear plate 225, a filter plate 223 is provided on the left side of the front frame 222, and a motor 226 is fixedly mounted on the right side of the rear plate 225 to filter dust.

[0033] Furthermore, the output end of the motor 226 is fixedly mounted to the impeller 224, and the end of the shock absorbing spring 216 and the shock absorbing damper 217 away from the mounting seat 1 is fixedly connected to the bottom of the fan base 221 to weaken the intensity of the vibration.

[0034] Embodiment two:

[0035] See also Figure 5 In combination with the first embodiment, it is further obtained that the filtering mechanism 3 includes a fixing frame 31, the fixing frame 31 is fixedly installed on the left side of the front frame 222, a spring 2 32 is fixedly installed inside the fixing frame 31, a slider 33 is fixedly installed on the end of the spring 2 32 away from the fixing frame 31, a shift block 34 is fixedly installed on the left side of the slider 33, and an arc-shaped plug block 35 is fixedly installed on the inner side of the slider 33, and the filter plate 223 is removed and cleaned for subsequent use.

[0036] Furthermore, a slide groove is provided at the corresponding position of the fixed frame 31, the slider 33 and the arc-shaped plug-in block 35, and the slider 33 and the arc-shaped plug-in block 35 are slidably installed inside the slide groove, a slot is provided at the corresponding position of the filter plate 223 and the arc-shaped plug-in block 35, and the arc-shaped plug-in block 35 is inserted into the slot, and the filter mechanism 3 is provided with two groups, and is symmetrically distributed on the left center line of the fan base 221, so that the filter plate 223 is easy to disassemble.

[0037] In actual operation, when the device is used, the motor 226 is started, and the output end of the motor 226 drives the impeller 224 to rotate. The impeller 224 rotates to allow wind to enter the interior of the front frame 222, wherein impurities in the air are filtered through the filter plate 223 to prevent the impurities from entering the interior of the front frame 222 and damaging the impeller 224, thereby protecting the impeller 224. The impeller 224 rotates to generate vibration, which is transmitted downward through the fan base 221. The fan base 221 moves downward, pressing down the connecting rod 215, and the connecting rod 215 squeezes the elastic spring through the sliding block 213. Spring 1 214 is used to weaken the intensity of vibration, and the fan base 221 is pressed downward to squeeze the shock-absorbing spring 216 and the shock-absorbing damping 217, thereby weakening the intensity of vibration and preventing severe shaking and large force from causing the fan to tilt, thereby preventing the fan from shaking and colliding, and protecting the fan. After the fan is used, the shift block 34 is pushed outward, and the shift block 34 drives the arc-shaped plug block 35 to move through the slider 33, and the arc-shaped plug block 35 is separated from the slot restriction range of the filter plate 223, and the filter plate 223 is removed and cleaned for subsequent use.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A centrifugal fan for preventing shaking and impact, comprising a mounting seat (1), characterized in that: An anti-sway mechanism (2) is provided on the top of the mounting seat (1), and a filtering mechanism (3) is provided on the top of the mounting seat (1); The anti-sway mechanism (2) comprises a shock absorbing component (21) and a centrifugal component (22), wherein the centrifugal component (22) is arranged on top of the shock absorbing component (21); The shock absorbing assembly (21) comprises a fixing plate (211), the fixing plate (211) being fixedly mounted on the top of the mounting seat (1), a connecting rod (212) being fixedly mounted on the inner side of the fixing plate (211), a sliding block (213) being slidably mounted on the outer side of the connecting rod (212), a spring 1 (214) being fixedly mounted on the inner side of the sliding block (213), a connecting rod (215) being rotatably mounted on the top of the sliding block (213), a shock absorbing spring (216) being fixedly mounted on the top of the mounting seat (1), and a shock absorbing damper (217) being fixedly mounted on the top of the mounting seat (1); The centrifugal assembly (22) comprises a fan base (221), the fan base (221) being rotatably mounted on the top of the connecting rod (215), a front frame (222) being fixedly mounted on the top of the fan base (221), a mounting rear plate (225) being fixedly mounted on the right side of the front frame (222), an impeller (224) being rotatably mounted on the left side of the mounting rear plate (225), a filter plate (223) being arranged on the left side of the front frame (222), and a motor (226) being fixedly mounted on the right side of the mounting rear plate (225).

2. A centrifugal fan for preventing shaking and impact according to claim 1, characterized in that: The fixing plate (211), the connecting rod (212), the sliding block (213), the spring one (214), the shock absorbing spring (216) and the shock absorbing damper (217) are provided in two groups and are symmetrically distributed on the left center line of the mounting seat (1), and the spring one (214) is fixedly mounted on the inner sides of the two sliding blocks (213).

3. A centrifugal fan for preventing shaking and impact according to claim 1, characterized in that: The output end of the motor (226) is fixedly mounted on the impeller (224), and the ends of the shock absorbing spring (216) and the shock absorbing damper (217) away from the mounting seat (1) are fixedly connected to the bottom of the fan base (221).

4. The centrifugal fan for preventing shaking and impact according to claim 1, characterized in that: The filtering mechanism (3) comprises a fixing frame (31), the fixing frame (31) being fixedly mounted on the left side of the front frame (222), a second spring (32) being fixedly mounted inside the fixing frame (31), a sliding block (33) being fixedly mounted on one end of the second spring (32) away from the fixing frame (31), a shifting block (34) being fixedly mounted on the left side of the sliding block (33), and an arc-shaped inserting block (35) being fixedly mounted on the inner side of the sliding block (33).

5. A centrifugal fan for preventing shaking and impact according to claim 4, characterized in that: The fixing frame (31) is provided with a slide groove at positions corresponding to the slider (33) and the arc-shaped plug-in block (35), and the slider (33) and the arc-shaped plug-in block (35) are slidably mounted inside the slide groove; the filter plate (223) is provided with a slot at positions corresponding to the arc-shaped plug-in block (35), and the arc-shaped plug-in block (35) is plugged into the slot; and the filter mechanism (3) is provided with two groups, which are symmetrically distributed on the left center line of the fan base (221).

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