A noise reduction and silencing device for a blower

Abstract

The utility model discloses a noise reduction and silencing device for a blower, comprising: a main unit, the main unit comprises a blower main body, the left side of the blower main body is fixedly connected with an air inlet pipe, and the front side of the blower main body is fixedly connected with an air outlet pipe; a filter assembly, the filter assembly comprises a fixed box and a connecting box, the connecting box is arranged in the fixed box, the fixed box is fixedly connected to the air inlet pipe, the upper end of the fixed box is fixedly connected with a reduction motor, the output end of the reduction motor passes through the upper end of the fixed box and is fixedly connected with a rotating rod, and its beneficial effects are: the cross bar is driven to rotate by the arrangement of the reduction motor, the rotating rod, the first bevel gear and the second bevel gear, the cleaning brush is driven to rotate by the cross bar and the disc, the dust and foreign matter on the surface of the filter screen are cleaned by the cleaning brush to avoid clogging of the filter screen, which not only facilitates the cleaning of the filter screen and improves the air intake efficiency, but also reduces its output power and reduces noise.

Description

Technical Field

[0001] The utility model relates to the technical field of blowers, in particular to a noise reduction and silencing device for blowers. Background Art

[0002] The blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base (also oil tank), and oil drip nozzle. The blower operates by the eccentric rotor offset in the cylinder, and the volume change between the blades in the rotor slot causes the air to be sucked in, compressed, and expelled.

[0003] During operation, existing blowers are equipped with filter components to effectively block dust and other foreign matter. However, as these foreign matter accumulate on the surface of the filter, they gradually become clogged. This clogging not only makes the cleaning of the filter cumbersome, but also significantly reduces the air intake efficiency. Therefore, in order to maintain the necessary air intake, the blower has to increase its output power, which leads to a significant increase in noise.

[0004] Therefore, a blower noise reduction and silencer is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above-mentioned problems of the noise reduction and silencer device for a blower, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a noise reduction and silencer for a blower, which is used to solve the problem that during the operation of the existing blower, although a filter assembly is equipped to effectively block dust and other foreign matter, as these foreign matter accumulate on the surface of the filter, blockage gradually occurs. This blockage not only makes the cleaning of the filter cumbersome, but also significantly reduces the air intake efficiency. Therefore, in order to maintain the necessary air intake, the blower has to increase its output power, which leads to a significant increase in noise and other problems.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a blower noise reduction and silencing device, comprising:

[0009] A main unit, the main unit comprising a blower main body, an air inlet pipe is fixedly connected to the left side of the blower main body, and an air outlet pipe is fixedly connected to the front side of the blower main body;

[0010] A filter assembly, the filter assembly includes a fixed box and a connecting box, the connecting box is arranged in the fixed box, the fixed box is fixedly connected to the air inlet pipe, the upper end of the fixed box is fixedly connected to a reduction motor, the output end of the reduction motor passes through the upper end of the fixed box and is fixedly connected to a rotating rod, the lower end of the rotating rod is fixedly sleeved with a No. 1 bevel gear, the lower end of the No. 1 bevel gear is meshed and connected with a No. 2 bevel gear, a cross bar is fixedly inserted at the center of the No. 2 bevel gear, the other end of the cross bar is fixedly connected to a disc, and a plurality of cleaning brushes are fixedly connected to the other side of the disc at equal intervals, and a filter net is arranged in the fixed box.

[0011] As a preferred solution of the blower noise reduction and silencing device described in the utility model, a fixing frame is fixedly connected to the inner wall of the fixing box, a plurality of mounting holes are symmetrically opened on the fixing frame, and the filter screen is fixed to the fixing frame by a plurality of bolts.

[0012] As a preferred solution of the blower noise reduction and silencing device described in the utility model, one end of the rotating rod passes through the upper end of the connecting box and is rotatably connected to the inner wall of the connecting box, and the fixed box is connected to the air inlet pipe through the air inlet hole.

[0013] As a preferred solution of the blower noise reduction and silencing device described in the utility model, wherein: a dust box is fixedly connected to the lower end of the fixed box, the dust box and the fixed box are connected through a feed hole, a discharge port is opened on the front side of the dust box, and a sealing plug is provided in the discharge port.

[0014] As a preferred solution of the blower noise reduction and silencing device described in the utility model, the connecting box and the fixed box are fixedly connected by a plurality of connecting rods, and a vent is provided on the left side of the fixed box.

[0015] As a preferred solution of the blower noise reduction and silencing device described in the utility model, one end of the cross bar is rotatably connected to the inner wall of the connecting box, and the other end of the cross bar passes through the side wall of the connecting box and is rotatably connected to the inner wall of the connecting box.

[0016] Beneficial effects of the utility model:

[0017] The cross bar is driven to rotate by the reduction motor, the rotating rod, the first bevel gear and the second bevel gear, and the cleaning brush is driven to rotate by the cross bar and the disc. The dust and foreign matter on the surface of the filter can be cleaned by the cleaning brush to avoid clogging of the filter. This not only makes it easier to clean the filter and improves the air intake efficiency, but also reduces its output power and reduces noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 The utility model is a front structural schematic diagram of a blower noise reduction and silencer device.

[0020] Figure 2 The utility model is a schematic diagram of the side structure of a noise reduction and silencer device for a blower.

[0021] Figure 3 The utility model is a partial structural schematic diagram of a blower noise reduction and silencer device.

[0022] Figure 4 The utility model is a schematic diagram of the structure inside a connection box in a noise reduction and silencer device for a blower.

[0023] Figure 5 The utility model is a schematic diagram of the structure of a cleaning brush in a noise reduction and silencer device for a blower.

[0024] Description of the drawings: 100, main unit; 101, blower body; 102, air inlet pipe; 103, air outlet pipe; 200, filter assembly; 201, fixed box; 202, reduction motor; 203, rotating rod; 204, No. 1 bevel gear; 205, No. 2 bevel gear; 206, rotating rod; 207, disc; 208, cleaning brush; 209, connecting box; 210, connecting rod; 211, fixed frame; 212, filter net; 213, dust box. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Reference Figure 1-Figure 5 , is an embodiment of the utility model, and provides a blower noise reduction and silencer device, which includes:

[0030] The main unit 100 includes a blower body 101, an air inlet pipe 102 is fixedly connected to the left side of the blower body 101, and an air outlet pipe 103 is fixedly connected to the front side of the blower body 101;

[0031] The filter assembly 200 includes a fixed box 201 and a connecting box 209. The connecting box 209 is arranged in the fixed box 201. The fixed box 201 is fixedly connected to the air inlet pipe 102. The upper end of the fixed box 201 is fixedly connected with a reduction motor 202. The output end of the reduction motor 202 passes through the upper end of the fixed box 201 and is fixedly connected with a rotating rod 203. The lower end of the rotating rod 203 is fixedly sleeved with a No. 1 bevel gear 204. The lower end of the No. 1 bevel gear 204 is meshingly connected with a No. 2 bevel gear 205. A cross bar 206 is fixedly inserted at the center of the No. 2 bevel gear 205. The other end of the cross bar 206 is fixedly connected with a disc 207. A plurality of cleaning brushes 208 are fixedly connected at equal intervals on the other side of the disc 207. A filter net 212 is arranged in the fixed box 201.

[0032] The cross bar 206 is driven to rotate by the reduction motor 202, the rotating rod 203, the first bevel gear 204 and the second bevel gear 205, and the cleaning brush 208 is driven to rotate by the cross bar 206 and the disc 207. The cleaning brush 208 can clean the dust and foreign matter on the surface of the filter 212 to avoid clogging of the filter 212, which not only facilitates the cleaning of the filter 212 and improves the air intake efficiency, but also reduces its output power and reduces noise.

[0033] A fixing frame 211 is fixedly connected to the inner wall of the fixing box 201, and a plurality of mounting holes are symmetrically provided on the fixing frame 211. The filter 212 is fixedly installed to the fixing frame 211 by a plurality of bolts, and the filter 212 is conveniently fixedly installed by the bolts.

[0034] Among them, one end of the rotating rod 203 passes through the upper end of the connecting box 209 and is rotatably connected to the inner wall of the connecting box 209. The fixed box 201 is connected to the air inlet pipe 102 through the air inlet hole, and the rotating rod 203 drives the first bevel gear 204 to rotate.

[0035] Among them, the lower end of the fixed box 201 is fixedly connected with a dust box 213, the dust box 213 and the fixed box 201 are connected through a feed hole, a discharge port is opened on the front side of the dust box 213, a sealing plug is provided in the discharge port, and dust can be collected in the dust box 213.

[0036] The connection box 209 is fixedly connected to the fixed box 201 via a plurality of connection rods 210 . A vent is provided on the left side of the fixed box 201 , and the connection box 209 is fixed via the connection rods 210 .

[0037] One end of the cross bar 206 is rotatably connected to the inner wall of the connection box 209 , and the other end of the cross bar 206 passes through the side wall of the connection box 209 and is rotatably connected to the inner wall of the connection box 209 , and the disc 207 is driven to rotate through the cross bar 206 .

[0038] Working principle: When the blower is working, air is sucked in through the air inlet pipe 102 and discharged through the air outlet pipe 103, the reduction motor 202 is started, and its output end drives the rotating rod 203 to rotate, the rotating rod 203 drives the No. 1 bevel gear 204 to rotate, the No. 1 bevel gear 204 drives the No. 2 bevel gear 205 to rotate, the No. 2 bevel gear 205 drives the cross bar 206 to rotate, the cross bar 206 drives the disc 207 to rotate, and the disc 207 drives the cleaning brush 208 to rotate. The cleaning brush 208 can be used to clean dust and foreign matter on the surface of the filter 212 to avoid clogging of the filter 212, which not only facilitates the cleaning of the filter 212 and improves the air intake efficiency, but also reduces its output power and reduces noise. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A blower noise reduction and silencer, characterized in that: include: A main unit (100), the main unit (100) comprising a blower main body (101), an air inlet pipe (102) being fixedly connected to the left side of the blower main body (101), and an air outlet pipe (103) being fixedly connected to the front side of the blower main body (101); A filter assembly (200), the filter assembly (200) comprising a fixed box (201) and a connection box (209), the connection box (209) being arranged in the fixed box (201), the fixed box (201) being fixedly connected to an air inlet pipe (102), a reduction motor (202) being fixedly connected to the upper end of the fixed box (201), an output end of the reduction motor (202) passing through the upper end of the fixed box (201) and being fixedly connected to a rotating rod (203), the rotating rod ( A first bevel gear (204) is fixedly sleeved at the lower end of the first bevel gear (203), a second bevel gear (205) is meshedly connected at the lower end of the first bevel gear (204), a cross bar (206) is fixedly inserted through the center of the second bevel gear (205), a disc (207) is fixedly connected to the other end of the cross bar (206), a plurality of cleaning brushes (208) are fixedly connected to the other side of the disc (207) at equal intervals, and a filter screen (212) is arranged in the fixed box (201).

2. A blower noise reduction and silencing device according to claim 1, characterized in that: A fixing frame (211) is fixedly connected to the inner wall of the fixing box (201), a plurality of mounting holes are symmetrically provided on the fixing frame (211), and the filter screen (212) is fixedly mounted to the fixing frame (211) by means of a plurality of bolts.

3. The noise reduction and silencing device for a blower according to claim 1, characterized in that: One end of the rotating rod (203) passes through the upper end of the connecting box (209) and is rotatably connected to the inner wall of the connecting box (209); the fixed box (201) and the air inlet pipe (102) are connected via an air inlet hole.

4. The noise reduction and silencing device for a blower according to claim 1, characterized in that: A dust collecting box (213) is fixedly connected to the lower end of the fixed box (201); the dust collecting box (213) and the fixed box (201) are connected via a feed hole; a discharge port is provided on the front side of the dust collecting box (213); a sealing plug is provided in the discharge port.

5. The noise reduction and silencing device for a blower according to claim 1, characterized in that: The connection box (209) and the fixed box (201) are fixedly connected via a plurality of connection rods (210), and a ventilation opening is provided on the left side of the fixed box (201).

6. The noise reduction and silencing device for a blower according to claim 1, characterized in that: One end of the cross bar (206) is rotatably connected to the inner wall of the connection box (209), and the other end of the cross bar (206) penetrates the side wall of the connection box (209) and is rotatably connected to the inner wall of the connection box (209).

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