Flexible fan damping mechanism of breathing machine

Abstract

The utility model discloses a breathing machine flexible draught fan damping mechanism which comprises a draught fan, a damping sleeve is sleeved outside the draught fan, the damping sleeve is of a flexible structure, a cavity is formed inside the damping sleeve, the damping sleeve is matched with the draught fan in appearance and forms close fit with the draught fan, and a plurality of clamping legs are arranged on the periphery of the damping sleeve. According to the utility model, the damping sleeve is wrapped outside the fan, is made of flexible (rubber) materials, and can reduce the vibration of the fan during operation, so that the noise generated during the operation of the fan is reduced to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of ventilator technology, and mainly to a flexible fan shock absorption mechanism for ventilators. Background Technology

[0002] Ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used in anesthesia respiratory management, respiratory support therapy, and emergency resuscitation. A ventilator uses a fan to draw in air, which is then delivered to the user through a humidifier.

[0003] When a ventilator is in use, a centrifugal fan draws in external air and pressurizes it before expelling it. However, the centrifugal fan vibrates violently during operation, generating significant noise. Excessive noise can negatively impact the user experience, especially since ventilators are typically used more frequently during sleep at night, and excessive noise can disrupt sleep. Therefore, how to reduce the vibration and noise of the centrifugal fan has become an urgent problem to be solved. Utility Model Content

[0004] This invention aims to solve at least one problem existing in the prior art. Therefore, the purpose of this invention is to provide a flexible fan vibration damping mechanism for ventilators, which can effectively reduce fan vibration, lower fan noise, and improve the user experience.

[0005] To achieve the above objectives, this utility model proposes:

[0006] A flexible fan damping mechanism for a ventilator includes a fan, a damping sleeve is provided on the outside of the fan, the damping sleeve is a flexible structure, a cavity is formed inside the damping sleeve, the damping sleeve is adapted to the shape of the fan and forms a tight fit, and a number of clamping legs are provided on the outer periphery of the damping sleeve.

[0007] Preferably, the shock-absorbing sleeve includes a main body and a tube. The main body is a hollow cylindrical structure, and the tube is a hollow tubular structure. The main body, the tube, and the clamping leg are an integral structure. The main body is adapted to the fan body, and the tube is adapted to the fan outlet pipe.

[0008] Preferably, a first limiting ring is provided at the top of the main body, and the fan body abuts against the first limiting ring.

[0009] Preferably, a second limiting ring is provided inside the pipe section, and the fan outlet pipe abuts against the second limiting ring.

[0010] Preferably, the inner wall of the main body is provided with a plurality of rib grooves, and the distance between two adjacent rib grooves is the same.

[0011] Preferably, the tube has a plug at its outer end, away from the main body.

[0012] Preferably, the locking leg is located on the outer periphery of the main body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention involves wrapping a shock-absorbing sleeve around the outside of the fan. The shock-absorbing sleeve is made of flexible (rubber) material. The shock-absorbing sleeve can reduce the vibration of the fan during operation and greatly reduce the noise generated by the fan.

[0015] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 Three-dimensional vibration damping mechanism for flexible fan of ventilator Figure 1 ;

[0017] Figure 2 Three-dimensional vibration damping mechanism for flexible fan of ventilator Figure 2 ;

[0018] Figure 3 Exploded view of the vibration damping mechanism of the flexible fan in a ventilator;

[0019] Figure 4 This is a schematic diagram of the installation of the flexible fan vibration damping mechanism for a ventilator.

[0020] Figure label:

[0021] 1. Fan, 2. Shock absorber sleeve, 21. Clamping leg, 22. Main body, 221. First limiting ring, 222. Rib groove, 23. Pipe, 231. Second limiting ring, 232. Plug. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0024] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0025] Please refer to the following for details. Figure 1-3 A vibration damping mechanism for a flexible fan 1 of a ventilator includes a fan 1, a vibration damping sleeve 2 is fitted on the outside of the fan 1, the vibration damping sleeve 2 is a flexible structure, a cavity is formed inside the vibration damping sleeve 2, the vibration damping sleeve 2 is adapted to the shape of the fan 1 and forms a tight fit, the vibration damping sleeve 2 is fixedly connected to the fan 1 by friction, ensuring the stability of the connection between the fan 1 and the vibration damping sleeve 2.

[0026] Based on the above technical means: the flexible shock-absorbing sleeve 2 is wrapped around the outside of the fan 1, and the vibration generated by the fan 1 during operation will be absorbed by the shock-absorbing sleeve 2, thereby greatly reducing the noise generated by the fan 1 during operation.

[0027] Specifically, a flexible shock-absorbing sleeve 2 adapted to the fan 1 is provided on the outside of the fan 1. The vibration generated by the fan 1 will be absorbed by the shock-absorbing sleeve 2. Three clamping legs 21 are provided on the outside of the shock-absorbing sleeve 2. The clamping legs 21 are T-shaped. Three T-shaped grooves adapted to the T-shaped clamping legs 21 are provided on the ventilator housing. The shock-absorbing sleeve 2 can be fixed to the ventilator housing by the clamping legs 21 engaging with the T-shaped grooves. That is, the fan 1 is also fixed in the ventilator housing by the clamping legs 21 engaging with the T-shaped grooves. The multiple clamping legs 21 (fixed points) improve the stability of the fan 1 installation.

[0028] Furthermore, the shock absorber sleeve 2 includes a main body 22 and a tube 23. The main body 22 is a hollow cylindrical structure, and the tube 23 is a hollow tubular structure. The main body 22, the tube 23, and the clamping leg 21 are an integral structure. The clamping leg 21 is located on the outer periphery of the main body 22. The main body 22 is adapted to the main body of the fan 1. The main body of the fan 1 is fitted in the main body 22. The tube 23 is adapted to the air outlet pipe of the fan 1. The air outlet pipe of the fan 1 is fitted in the tube 23.

[0029] In this embodiment, the shock-absorbing sleeve 2 is made of rubber material, and the main body 22, the tube 23 and the clamping leg 21 are integrally injection molded.

[0030] Furthermore, the main body 22 is open at both the top and bottom, and the main body 22 covers most of the main body of the fan 1, while the upper and lower parts and the lower side of the main body of the fan 1 are not covered; this can greatly reduce the vibration generated by the operation of the fan 1, and at the same time will not affect the heat dissipation of the fan 1.

[0031] Furthermore, a first limiting ring 221 is provided at the top of the main body 22, and the main body of the fan 1 abuts against the first limiting ring 221; this restricts the main body of the fan 1 so that the main body of the fan 1 will not protrude from the top of the main body 22.

[0032] Furthermore, a second limiting ring 231 is provided inside the pipe section 23, and the air outlet pipe of the fan 1 abuts against the second limiting ring 231; this restricts the air outlet pipe of the fan 1, so that the air outlet pipe of the fan 1 will not pass through the pipe section 23.

[0033] Furthermore, a number of rib grooves 222 are provided on the inner wall of the main body 22, and the distance between two adjacent rib grooves 222 is the same; the rib grooves 222 are designed to match the ribs on the main body of the fan 1, so that the main body of the fan 1 and the main body 22 fit together better.

[0034] Furthermore, the tube 23 has a plug 232 at its outer end away from the main body 22; the ventilator housing has a slot that matches the plug 232, and the plug 232 can be inserted into the slot to form a mating fit, which serves to position and assemble the device.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ventilator flexible blower shock mitigation mechanism comprising a blower, characterized by, The fan is fitted with a shock-absorbing sleeve, which is a flexible structure with a cavity inside. The shock-absorbing sleeve is adapted to the shape of the fan and forms a tight fit. Several clamping legs are provided on the outer periphery of the shock-absorbing sleeve.

2. The ventilator flexible blower shock mechanism of claim 1, wherein, The shock-absorbing sleeve includes a main body and a tube. The main body is a hollow cylindrical structure, and the tube is a hollow tubular structure. The main body, tube, and clamping leg are an integral structure. The main body is adapted to the fan body, and the tube is adapted to the fan outlet pipe.

3. The ventilator flexible blower shock mechanism of claim 2, wherein, A first limiting ring is provided at the top of the main body, and the fan body abuts against the first limiting ring.

4. The ventilator flexible blower shock mechanism of claim 2 or 3, wherein, The pipe section is provided with a second limiting ring inside, and the fan outlet pipe abuts against the second limiting ring.

5. The ventilator flexible blower shock mitigation mechanism of claim 4, wherein, The inner wall of the main body is provided with a number of rib grooves, and the distance between two adjacent rib grooves is the same.

6. The ventilator flexible blower shock absorption mechanism of claim 4, wherein, The tube has a plug at its outer end, which is away from the main body.

7. The ventilator flexible blower shock mechanism of claim 4, wherein, The locking legs are located on the outer periphery of the main body.

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