Air inlet filtering and silencing device of air compressor

Abstract

The utility model relates to the technical field of air inlet pipes of air compressors, in particular to an air inlet filtering and silencing device of an air compressor. According to the technical scheme, the device comprises an air compressor air inlet pipe and a dustproof filter element, a mounting ring plate is fixed in the air compressor air inlet pipe, the dustproof filter element is inserted into the air compressor air inlet pipe and penetrates through the mounting ring plate, a filter element ring plate is fixed to the periphery of the front end of the dustproof filter element, an opening of the air compressor air inlet pipe is in threaded connection with an outer threaded sleeve, and the outer threaded sleeve is in threaded connection with the air compressor air inlet pipe. A blocking net is fixed in the outer threaded sleeve, and an ejection assembly is arranged in the air compressor air inlet pipe. The double-layer filtering structure is used for blocking dust and foreign matter, the blocking risk is reduced, air inlet of the air compressor is clean, meanwhile, disassembly and assembly are relatively simple, and replacement and maintenance of the dustproof filter element are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressor intake pipes, in particular to an air compressor intake filtering and silencing device. Background Art

[0002] The air intake pipe of the air compressor is a pipe that introduces air from the atmosphere into the air compressor for compression. It is a channel connecting the atmosphere and the air compressor, and plays the role of introducing air into the air compressor.

[0003] During the air compressor suction process, ensuring the cleanliness of the intake air is an important factor affecting the service life of the air compressor. Therefore, a filter element will be installed in the air compressor intake pipe for dust prevention. On this basis, since the pass size of the filter element is relatively small, if the larger dust particles in the air are not blocked in advance, it is easy to cause the filter element to be quickly blocked, which will not only affect the normal filtering operation, but also the air flow will be blocked and abnormal noise will occur. Therefore, it is necessary to design a filtering structure that can perform layer-by-layer blocking and can be quickly replaced and repaired when encountering blockage and abnormal noise. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes an air intake filtering and silencing device for an air compressor.

[0005] The technical solution of the utility model is: an air compressor air intake filtering and silencing device, comprising an air compressor air intake pipe and a dust filter element, a mounting ring plate is fixed in the air compressor air intake pipe, the dust filter element is plugged in the air compressor air intake pipe and passes through the mounting ring plate, a filter element ring plate is fixed on the periphery of the front end of the dust filter element, an external threaded sleeve is threadedly connected at the opening of the air compressor air intake pipe, and a barrier net is fixed in the external threaded sleeve, and an ejection assembly is arranged in the air compressor air intake pipe.

[0006] Preferably, the ejection assembly includes a telescopic rod and a reset push block, the telescopic rod passes through the mounting ring plate and is equidistantly distributed, the telescopic rod is slidably connected to the mounting ring plate, an external bracket is fixed to the periphery of the reset push block, one end of the inner side of the telescopic rod is fixed to the external bracket, an ejection spring is fixed between the external bracket and the mounting ring plate, and the ejection springs are all located on the outside of the telescopic rod.

[0007] Preferably, an ejector ring plate is slidably connected in the air inlet pipe of the air compressor and located in front of the mounting ring plate, and the ejector ring plate is fixedly connected to the front end of the telescopic rod.

[0008] Preferably, a limiting groove is provided at the front center of the reset push block, and the size of the end of the dust filter element is matched with the size of the limiting groove.

[0009] Preferably, an outer plate is fixed to the outside of the front end of the external threaded sleeve, and a sealing gasket is fixed to the inside of the outer plate. The sealing gasket can increase the sealing between the outer plate and the end of the air compressor intake pipe to avoid gas leakage.

[0010] Preferably, sound insulation cotton is pasted on the periphery of the air compressor intake pipe, which can isolate the noise generated in the air compressor intake pipe to a certain extent.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects: using a double-layer filtering structure to block dust and foreign matter, reducing the risk of blockage, and achieving clean air intake for the air compressor; at the same time, disassembly and assembly are relatively simple, making it convenient to replace and maintain the dust filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the installation structure of the dust filter element of the utility model;

[0013] Figure 2 This is a schematic diagram of the combined structure of the dust filter element and the external threaded sleeve of the utility model;

[0014] Figure 3 This is a schematic diagram of the combined structure of the mounting ring plate and the telescopic rod of the utility model;

[0015] Figure 4 This is a schematic diagram of the combined structure of the reset push block and the telescopic rod of the utility model.

[0016] Figure numerals: 1. air compressor inlet pipe; 11. mounting ring plate; 2. dust filter element; 21. filter element ring plate; 3. external threaded sleeve; 31. outer plate; 32. sealing gasket; 33. barrier net; 4. ejector assembly; 41. telescopic rod; 42. reset push block; 43. outer bracket; 44. limiting groove; 45. ejector spring; 46. ejector ring plate; 5. sound insulation cotton. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Example

[0019] like Figure 1-4As shown, the utility model proposes an air compressor air intake filtering and silencing device, including an air compressor air intake pipe 1 and a dust filter element 2, a mounting ring plate 11 is fixed in the air compressor air intake pipe 1, the dust filter element 2 is plugged into the air compressor air intake pipe 1 and passes through the mounting ring plate 11, a filter element ring plate 21 is fixed to the outer periphery of the front end of the dust filter element 2, an external threaded sleeve 3 is threadedly connected to the opening of the air compressor air intake pipe 1, and a barrier net 33 is fixed in the external threaded sleeve 3, an ejection assembly 4 is arranged in the air compressor air intake pipe 1, an outer plate 31 is fixed to the outer side of the front end of the external threaded sleeve 3, a sealing gasket 32 ​​is fixed to the inner side of the external plate 31, a sealing box is added at the connection to avoid noise caused by gas leakage, and sound insulation cotton 5 is pasted on the outer periphery of the air compressor air intake pipe 1 to isolate the sound in the air compressor air intake pipe 1 to a certain extent.

[0020] The ejection assembly 4 includes a telescopic rod 41 and a reset push block 42. The telescopic rod 41 passes through the mounting ring plate 11 and is equidistantly distributed. The telescopic rod 41 is slidably connected to the mounting ring plate 11. An outer bracket 43 is fixed to the periphery of the reset push block 42. One end of the inner side of the telescopic rod 41 is fixed to the outer bracket 43. An ejection spring 45 is fixed between the outer bracket 43 and the mounting ring plate 11. The ejection springs 45 are all located on the outside of the telescopic rod 41. An ejection ring plate 46 is slidably connected in the air intake pipe 1 of the air compressor and is located in the front side of the mounting ring plate 11. The ejection ring plate 46 is fixedly connected to the front end of the telescopic rod 41. A limiting groove 44 is provided at the front center of the reset push block 42. The size of the end of the dust filter element 2 is matched with the size of the limiting groove 44. Inserting the end of the dust filter element 2 into the limiting groove 44 can maintain the stability of the end of the device and prevent the dust filter element 2 from shaking in the air intake pipe 1 of the air compressor.

[0021] In this embodiment, the dust filter element 2 is first inserted into the air intake pipe 1 of the air compressor so that one end of the inner side passes through the mounting ring plate 11. During this process, the filter element ring plate 21 is abutted against the ejection ring plate 46, and the end of the dust filter element 2 is inserted into the limiting groove 44, the reset push block 42 is pushed toward the inside of the air intake pipe 1 of the air compressor, and the ejection spring 45 is pulled up, and the external threaded sleeve 3 is installed in the opening of the air intake pipe 1 of the air compressor. The filter element ring plate 21 is fixed by the extrusion of the external threaded sleeve 3 and the mounting ring plate 11, thereby realizing the installation of the dust filter element 2. When the air is taken in, the barrier net 33 can be used to block larger dust particles, and then the dust filter element 2 is filtered. The risk of blockage can be reduced while ensuring the cleanliness of the incoming gas. At the same time, when the external threaded sleeve 3 is removed, the ejection spring 45 can be used to reset the reset push block 42, and then the dust filter element 2 is ejected, which is convenient for the disassembly operation. When the abnormal sound caused by the blockage occurs again, it can be repaired or replaced in time.

[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An air compressor intake filter and silencer device, comprising an air compressor intake pipe (1) and a dust filter element (2), characterized in that: A mounting ring plate (11) is fixed inside the air compressor intake pipe (1), the dust filter element (2) is plugged into the air compressor intake pipe (1) and passes through the mounting ring plate (11), a filter element ring plate (21) is fixed to the outer periphery of the front end of the dust filter element (2), an external threaded sleeve (3) is threadedly connected at the opening of the air compressor intake pipe (1), and a barrier net (33) is fixed inside the external threaded sleeve (3), and an ejection assembly (4) is arranged inside the air compressor intake pipe (1).

2. The air compressor intake filter and silencer device according to claim 1, characterized in that: The ejection assembly (4) comprises a telescopic rod (41) and a reset push block (42), wherein the telescopic rod (41) passes through the mounting ring plate (11) and is equidistantly distributed, the telescopic rod (41) is slidably connected to the mounting ring plate (11), an outer bracket (43) is fixed to the periphery of the reset push block (42), one inner end of the telescopic rod (41) is fixed to the outer bracket (43), an ejection spring (45) is fixed between the outer bracket (43) and the mounting ring plate (11), and the ejection spring (45) is located on the outer side of the telescopic rod (41).

3. The air compressor intake filter and silencer device according to claim 2, characterized in that: An ejector ring plate (46) is slidably connected inside the air compressor air inlet pipe (1) and located in front of the mounting ring plate (11), and the ejector ring plate (46) is fixedly connected to the front end of the telescopic rod (41).

4. The air compressor intake filter and silencer device according to claim 2, characterized in that: A limiting groove (44) is provided at the front center of the reset push block (42), and the size of the end of the dustproof filter element (2) is matched with the size of the limiting groove (44).

5. The air compressor intake filter and silencer device according to claim 1, characterized in that: An outer plate (31) is fixed to the outside of the front end of the external threaded sleeve (3), and a sealing gasket (32) is fixed to the inside of the outer plate (31).

6. The air compressor intake filter and silencer device according to claim 1, characterized in that: The outer periphery of the air compressor air inlet pipe (1) is pasted with sound insulation cotton (5).

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