Filtering device for air compressor

Abstract

The filtering device for the air compressor comprises an air compressor body, a heating assembly is arranged at the upper end of an air inlet seat, a first-stage filtering net plate and a second-stage filtering net plate are installed on the filtering device respectively, air entering a filtering shell can be filtered in a multi-stage mode, a transmission vertical rod is rotated, and the transmission vertical rod is driven by a motor to rotate. A transmission vertical rod can drive a hitting ball to rotate together through a connecting spring to hit a first-stage filter screen plate and a second-stage filter screen plate, and in the process, the first-stage filter screen plate and the second-stage filter screen plate can generate vibration to shake off part of dust blocked by the left end face; the cleaning and replacing period of the first-stage filter screen plate and the second-stage filter screen plate is prolonged, the snake-shaped air guide pipe is heated through the electric heating piece, so that the heated snake-shaped air guide pipe can heat and dehumidify air passing through the snake-shaped air guide pipe, and the situation that the air with moisture directly enters the air compressor body to cause rusting is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressor filtering, in particular to a filtering device for an air compressor. Background Art

[0002] An air compressor is a device used to compress gas. The structure of an air compressor is similar to that of a water pump. Most air compressors are reciprocating piston type, with rotating blades or rotating screws. During use, most air compressors use a filtering device to filter the air entering the compressor.

[0003] Publication No. "CN215444347U" provides a filtering device for an air compressor, in which an air inlet pipe, a baffle, a filter cartridge, a heater and a heating coil are energized, so that the heating coil is energized to generate Joule heat, so that the moisture in the gas is evaporated by the heat, which plays a drying role and prevents the gas with moisture from entering the air compressor, causing the equipment inside the air compressor to become damp and rust, thereby affecting the service life of the air compressor. The dried air is again passed through the filter cartridge for secondary dust filtration, thereby improving the filtration effect and preventing dust particles in the gas from entering the air compressor, causing the pipes in the air compressor to be blocked, thereby affecting the gas flow of the air compressor.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Firstly, the heating coil in the filter device can only heat and dehumidify a part of the air entering the box during actual use, and the heating and dehumidification range is limited. Secondly, the filter device only relies on a single filter cartridge to filter the air, and cannot filter most of the dust in the passing air. In addition, the replacement cycle of the filter cartridge is short during use, and its practicality needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a filtering device for an air compressor to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A filtering device for an air compressor comprises an air compressor body, a pressure gauge and an air inlet seat, wherein a pressure gauge is installed on the left side of the upper end surface of the air compressor body, an air inlet seat is arranged on the upper end surface of the air compressor body, a heating component is arranged on the upper end of the air inlet seat, and the heating component is used to heat and dehumidify the air entering the air compressor body, a filtering component is arranged on the upper end of the heating component, and the filtering component is used to filter the air entering the air compressor body.

[0009] Preferably, the heating assembly includes a connecting shell, a serpentine air duct, an electric heating plate and an air inlet cavity. The connecting shell is installed on the upper end of the air inlet seat. The serpentine air duct is fixedly connected to the inside of the connecting shell. The outer surface of the serpentine air duct is wrapped with an electric heating plate. An air inlet cavity is opened on the right side of the upper end face of the connecting shell.

[0010] Preferably, the inner wall of the connecting shell is provided with an insulation layer, and the insulation layer is made of an insulation blanket. A temperature controller is installed on the right end face of the connecting shell, and the temperature controller is connected to the electric heating plate through a wire. The electric heating plate is made of a silicone heating plate. A partition is provided on the right side of the upper end face of the connecting shell.

[0011] Preferably, the filter assembly includes a filter shell, an air inlet bend pipe, a primary filter screen and a secondary filter screen. The filter shell is installed on the upper end of the connecting shell, an air inlet bend pipe is provided on the upper side of the left end surface of the filter shell, a primary filter screen is inserted on the left side of the filter shell, and a secondary filter screen is inserted in the middle position of the filter shell.

[0012] Preferably, a transmission vertical rod is installed on the upper side of the interior of the filter shell, a limit cover is installed on the upper end surface of the filter shell, a connecting spring is arranged on the lower side of the annular side surface of the transmission vertical rod, a striking ball is arranged on the left end of the connecting spring, and sealing strips are arranged at the edges of the primary filter screen plate and the secondary filter screen plate.

[0013] Preferably, a limit ring is provided on the upper side of the annular side surface of the transmission vertical rod, a hand turntable is provided on the upper end of the transmission vertical rod, and the transmission vertical rod is located in the middle position between the primary filter screen plate and the secondary filter screen plate.

[0014] Preferably, an insect-proof mesh is installed on the lower end surface of the air inlet elbow, fixing screws are installed on the lower side of the filter shell, the first-level filter screen is made of a plate-type primary-efficiency air filter, and the second-level filter screen is made of a plate-type medium-efficiency air filter.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This device can perform multi-stage filtration on the air entering the filter housing by installing a primary filter screen and a secondary filter screen respectively, so as to prevent dust in the air from being sucked into the air compressor body and causing blockage in the internal pipeline. By rotating the transmission vertical rod, the transmission vertical rod can drive the striking ball to rotate together through the connecting spring, so that the rotating striking ball can intermittently strike the primary filter screen and the secondary filter screen respectively. In this process, the primary filter screen and the secondary filter screen will vibrate to shake off a part of the dust blocked by the left end surface, thereby extending the cleaning and replacement cycle of the primary filter screen and the secondary filter screen;

[0017] 2. This device heats the serpentine air duct through an electric heating plate so that the heated serpentine air duct heats and dehumidifies the air passing through it. In this process, the serpentine air duct can further extend the path of the air passing through so as to heat and remove most of the moisture in the passing air, thereby preventing the humid air from directly entering the air compressor body and causing rust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a structural diagram of the heating component and the filtering component in the utility model;

[0020] Figure 3 It is a front cross-sectional view of the heating component and the filtering component in the utility model;

[0021] Figure 4 This is a structural diagram of the filter housing after disassembly in the utility model;

[0022] Figure 5 This is a structural diagram of the transmission vertical rod in the utility model;

[0023] Figure 6 It is a structural diagram of the connecting shell in the utility model.

[0024] In the figure: 1. air compressor body; 2. pressure gauge; 3. air inlet seat; 4. heating component; 41. connecting shell; 42. serpentine air guide pipe; 43. electric heating plate; 44. temperature controller; 45. thermal insulation layer; 46. air inlet cavity; 47. partition; 5. filter component; 51. filter shell; 511. fixing screw; 52. transmission vertical rod; 521. limiting ring; 53. limiting cover; 54. hand turntable; 55. air inlet elbow; 551. insect-proof mesh; 56. primary filter screen; 57. secondary filter screen; 571. sealing strip; 58. hitting ball; 59. connecting spring. 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] See also Figure 1-6 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A filtering device for an air compressor comprises an air compressor body 1, a pressure gauge 2 and an air inlet seat 3. The pressure gauge 2 is installed on the left side of the upper end surface of the air compressor body 1, and the pressure gauge 2 will display the air pressure of the storage tank inside the air compressor body 1 in real time. The upper end surface of the air compressor body 1 is provided with an air inlet seat 3, and the air inlet seat 3 is connected with the air inlet of the air compressor body 1. The air inlet seat 3 not only introduces the heated air into the air compressor body 1, but also supports the connecting shell 41. A heating component 4 is provided on the upper end of the air inlet seat 3, and the heating component 4 is used to heat and dehumidify the air entering the air compressor body 1. A filtering component 5 is provided on the upper end of the heating component 4, and the filtering component 5 is used to filter the air entering the air compressor body 1.

[0029] The filter assembly 5 includes a filter shell 51, an air inlet elbow 55, a primary filter screen plate 56 and a secondary filter screen plate 57. The filter shell 51 is installed on the upper end of the connecting shell 41. The filter shell 51 will support and protect the primary filter screen plate 56 and the secondary filter screen plate 57. An air inlet elbow 55 is arranged on the upper side of the left end surface of the filter shell 51. The air inlet elbow 55 is connected to the filter shell 51 by welding. The air inlet elbow 55 not only guides the external air into the filter shell 51, but also prevents the external dust from falling directly into the air inlet elbow 55. A primary filter screen plate 56 is inserted on the left side of the filter shell 51. The material of the primary filter screen plate 56 is a plate-type primary air filter. The material of the plate-type primary air filter is The primary filter screen 56 can filter out particle impurities of ≥5.0μm in the passing air. A secondary filter screen 57 is inserted in the middle position inside the filter shell 51. The secondary filter screen 57 is made of a plate-type medium-efficiency air filter. The secondary filter screen 57, which is a plate-type medium-efficiency air filter, can filter out particle impurities of ≥1.0μm in the passing air, thereby preventing dust in the air from being directly sucked into the air compressor body 1 and causing blockage in the internal pipeline. Sealing strips 571 are provided at the edges of the primary filter screen 56 and the secondary filter screen 57. The sealing strips 571 make the primary filter screen 56 and the secondary filter screen 57 better sealed with the filter shell 51 and the connecting shell 41.

[0030] A transmission vertical rod 52 is installed on the upper side of the inside of the filter shell 51. The transmission vertical rod 52 is connected to the limiting ring 521, the connecting spring 59 and the hand turntable 54 by welding. The transmission vertical rod 52 is located in the middle position between the primary filter screen plate 56 and the secondary filter screen plate 57. The transmission vertical rod 52 will drive the connecting spring 59 to rotate. A limiting cover 53 is installed on the upper end surface of the filter shell 51. A limiting ring 521 is arranged on the upper side of the annular side surface of the transmission vertical rod 52. The limiting cover 53 and the limiting ring 521 prevent the transmission vertical rod 52 from being displaced up and down during use. A connecting spring 59 is arranged on the lower side of the annular side surface of the transmission vertical rod 52. The connecting spring 59 can extend a length greater than the distance between the transmission vertical rod 52 and the primary filter screen plate 56 and the secondary filter screen plate 57. A striking ball 58 is arranged on the left end of the connecting spring 59. The striking ball 58 and the connecting spring 59 are welded. The connecting spring 59 not only drives the striking ball 58 to rotate, but also makes the striking ball 58 have the ability to retract during the rotation, so that the striking ball 58 can intermittently strike the primary filter screen plate 56 and the secondary filter screen plate 57. A hand turntable 54 is arranged on the upper end of the transmission vertical rod 52, and the hand turntable 54 is convenient for the staff to rotate the transmission vertical rod 52 by hand. An insect-proof mesh 551 is installed on the lower end surface of the air inlet elbow 55, and the insect-proof mesh 551 is a detachable structure. The detachable insect-proof mesh 551 not only prevents external flying insects from flying into the air inlet elbow 55, but also facilitates the staff to disassemble and clean it later. A fixing screw 511 is installed on the lower side of the inner part of the filter shell 51, and the fixing screw 511 is convenient for the staff to disassemble the filter shell 51 separately later, so as to disassemble, clean or replace the primary filter screen plate 56 and the secondary filter screen plate 57.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment, in this embodiment, the serpentine air duct 42 is heated by an electric heating plate 43 so that the heated serpentine air duct 42 heats and dehumidifies the air passing through the inside. In this process, the serpentine air duct 42 can further extend the path of the air passing through so as to heat and remove most of the moisture in the passing air, thereby preventing the humid air from directly entering the air compressor body 1 and causing rust.

[0033] The heating component 4 includes a connecting shell 41, a serpentine air duct 42, an electric heating plate 43 and an air inlet cavity 46. The connecting shell 41 is installed on the upper end of the air inlet seat 3. The connecting shell 41 not only protects the serpentine air duct 42, but also supports the filter shell 51. A first sealing strip 571 is installed between the connecting shell 41 and the air inlet seat 3. The first sealing strip 571 makes the sealing between the connecting shell 41 and the air inlet seat 3 better. The inside of the connecting shell 41 is fixedly connected with the serpentine air duct 42, and the serpentine air duct 42 is connected to the air inlet cavity 46. The serpentine air duct 42 not only guides the filtered air in the filter shell 51 to the air inlet seat 3, but also can extend the path of the air passing through the serpentine air duct 42, so that the serpentine air duct 42 heated by the electric heating plate 43 can dehumidify most of the moisture in the passing air.

[0034] The outer surface of the serpentine air duct 42 is wrapped with an electric heating plate 43, and the electric heating plate 43 is made of a silicone heating plate. The electric heating plate 43 made of a silicone heating plate is resistant to high temperature, has high thermal conductivity, and has good insulation performance, and has good softness. It can be in complete and close contact with the serpentine air duct 42 so as to heat the serpentine air duct 42. An air inlet cavity 46 is opened on the right side of the upper end surface of the connecting shell 41. The air inlet cavity 46 will guide the filtered air inside the filter shell 51 into the serpentine air duct 42. The inner wall of the connecting shell 41 is provided with an insulation layer 45, and the insulation layer 45 is made of an insulation blanket. The insulation layer 45 made of an insulation blanket makes the connecting shell 41 better in heat insulation and heat preservation, and prevents the heat generated by the electric heating plate 43 from passing through the connecting shell 41. Quickly drain to the outside, so as to ensure the heating effect of the electric heating plate 43, a temperature controller 44 is installed on the right end face of the connecting shell 41, and the temperature controller 44 is connected to the electric heating plate 43 through a wire, and the input end of the temperature controller 44 is connected to an external fixed power supply through a wire. The temperature controller 44 is convenient for the staff to control the electric heating plate 43 to work according to the preset temperature value. Since the internal detailed structure and working principle of the temperature controller 44 belong to the relatively mature technology in the prior art, they will not be described in detail here. A partition 47 is arranged on the right side of the upper end face of the connecting shell 41, and the partition 47 is connected to the connecting shell 41 by welding. The partition 47 prevents dust and impurities falling on the upper end face of the connecting shell 41 from entering the air inlet cavity 46.

[0035] Working principle: The staff first uses the temperature controller 44 to make the electric heating plate 43 work according to the preset temperature value, so that the electric heating plate 43 heats the serpentine air guide pipe 42, and then starts the air compressor body 1 to work. During the operation of the air compressor body 1, the external air will be sucked into the filter shell 51 through the air inlet elbow 55, and the air entering the filter shell 51 will first be filtered by the primary filter screen 56, and then the secondary filter screen 57 will perform a secondary filter on the air, thereby preventing dust in the external air from being directly sucked into the air compressor body 1 The internal pipeline will be blocked; and the air after the second filtration will pass through the air inlet cavity 46 and enter the serpentine air duct 42. At this time, the serpentine air duct 42 heated by the electric heating plate 43 will heat and dehumidify the air passing through the inside. In this process, the serpentine air duct 42 can further extend the path of the air so as to heat and remove most of the moisture in the passing air, thereby preventing the humid air from directly entering the air compressor body 1 and causing rust. The heated and dehumidified air will be sucked into the air compressor body 1 through the air inlet seat 3.

[0036] During later use, the staff only needs to rotate the hand turntable 54 by hand to make the hand turntable 54 drive the transmission vertical rod 52 to rotate, and the transmission vertical rod 52 will drive the hitting ball 58 to rotate together through the connecting spring 59, and the connecting spring 59 also makes the hitting ball 58 have the ability to retract during the rotation process, so that the rotating hitting ball 58 intermittently hits the primary filter screen plate 56 and the secondary filter screen plate 57 respectively. During this process, the primary filter screen plate 56 and the secondary filter screen plate 57 that are intermittently hit will vibrate to shake off a part of the dust blocked by the left end surface, thereby extending the cleaning and replacement cycle of the primary filter screen plate 56 and the secondary filter screen plate 57. When the staff removes the fixing screw 511 with the help of an external wrench, the filter shell 51 can be disassembled. At this time, the primary filter screen plate 56 and the secondary filter screen plate 57 can be taken out from the inside of the filter shell 51 for replacement or cleaning.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for an air compressor, comprising an air compressor body (1), a pressure gauge (2) and an air inlet seat (3), characterized in that: A pressure gauge (2) is installed on the left side of the upper end surface of the air compressor body (1); an air inlet seat (3) is arranged on the upper end surface of the air compressor body (1); a heating component (4) is arranged on the upper end of the air inlet seat (3); and the heating component (4) is used to heat and dehumidify the air entering the air compressor body (1); a filter component (5) is arranged on the upper end of the heating component (4); and the filter component (5) is used to filter the air entering the air compressor body (1).

2. A filter device for an air compressor according to claim 1, characterized in that: The heating assembly (4) comprises a connecting shell (41), a serpentine air duct (42), an electric heating plate (43) and an air inlet cavity (46); the connecting shell (41) is installed on the upper end of the air inlet seat (3); the serpentine air duct (42) is fixedly connected to the inside of the connecting shell (41); the outer surface of the serpentine air duct (42) is wrapped with an electric heating plate (43); and the air inlet cavity (46) is opened on the right side of the upper end surface of the connecting shell (41).

3. A filter device for an air compressor according to claim 2, characterized in that: The inner wall of the connecting shell (41) is provided with a heat insulation layer (45), and the material of the heat insulation layer (45) is a heat insulation blanket. The right end surface of the connecting shell (41) is installed with a temperature controller (44), and the temperature controller (44) is connected to the electric heating plate (43) through a wire. The material of the electric heating plate (43) is a silica gel heating plate. A partition plate (47) is provided on the right side of the upper end surface of the connecting shell (41).

4. A filter device for an air compressor according to claim 2, characterized in that: The filter assembly (5) comprises a filter housing (51), an air inlet bend pipe (55), a primary filter screen plate (56) and a secondary filter screen plate (57); the filter housing (51) is mounted on the upper end of the connection housing (41); an air inlet bend pipe (55) is arranged on the upper side of the left end surface of the filter housing (51); a primary filter screen plate (56) is inserted on the left side of the filter housing (51); and a secondary filter screen plate (57) is inserted in the middle of the filter housing (51).

5. A filter device for an air compressor according to claim 4, characterized in that: A transmission vertical rod (52) is installed on the upper side of the filter housing (51), a limit cover (53) is installed on the upper end surface of the filter housing (51), a connecting spring (59) is arranged on the lower side of the annular side surface of the transmission vertical rod (52), a striking ball (58) is arranged on the left end of the connecting spring (59), and sealing strips (571) are arranged at the edges of the primary filter screen plate (56) and the secondary filter screen plate (57).

6. A filter device for an air compressor according to claim 5, characterized in that: A limit ring (521) is provided on the upper side of the annular side surface of the transmission vertical rod (52), a hand turntable (54) is provided on the upper end of the transmission vertical rod (52), and the transmission vertical rod (52) is located in the middle position between the primary filter screen plate (56) and the secondary filter screen plate (57).

7. A filter device for an air compressor according to claim 4, characterized in that: The lower end surface of the air inlet curved pipe (55) is installed with an insect-proof mesh (551), the lower side of the filter housing (51) is installed with a fixing screw (511), the primary filter screen (56) is made of a plate-type primary air filter, and the secondary filter screen (57) is made of a plate-type medium-efficiency air filter.

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