Low-noise air compressor

Abstract

The utility model discloses a low-noise air compressor, and relates to the technical field of air compressors. The low-noise air compressor comprises an air compressor body, a plurality of side plates, a motor, a machine head and an air filtering tank, a silencing box is arranged at the input end of the air filtering tank, a plurality of grating plates are arranged in the silencing box in a layered mode, extension plates are slidably connected into the grating plates, the extension plates comprise foundation plates and regulation and control plates, and the foundation plates are hinged to the regulation and control plates through hinge rods. And the foundation plate is provided with a notch for wrapping the regulation and control plate. Through the cooperation of a plurality of structures, the noise reduction effect of the air compressor is ensured; the air inlet noise reduction grids are arranged on the side plates, the noise reduction box is arranged at the input end of the air filter tank, the grating plates are arranged in the noise reduction box, the flowing stroke of airflow is increased through layering and staggered matching of the grating plates, the airflow is smoother, and then the purposes of noise reduction and noise reduction are achieved. The flow stroke of airflow is increased through the extension plate, the regulation and control plate on the foundation plate can be adjusted in an inclined mode, the grid plate layout in the silencing box is changed, and the noise reduction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a low-noise air compressor. Background Art

[0002] An air compressor is a device used to compress gas. During the process of compressing air, the air compressor will generate airflow pulses and airflow leakage, accompanied by a large amount of compression noise. This noise will spread outward through the air inlet of the air compressor, resulting in high noise from the air compressor. Although the single noise reduction treatment has a certain noise reduction effect, the noise reduction effect is limited. How to further improve the noise reduction effect and flexibly change the internal grid structure of the silencer box is particularly important. Utility Model Content

[0003] The utility model provides a low-noise air compressor, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problem is:

[0005] A low-noise air compressor comprises an air compressor, several side panels, a motor, a machine head and an air filter tank. A detachable side panel is arranged on the outer side of the air compressor, an air inlet silencer grid is arranged on the side panel, the motor is connected to the machine head in a driving manner, an air inlet end is arranged on the machine head, an air inlet valve is installed on the air inlet end, the air inlet valve is connected to the air filter tank through an air pipe, a silencer box is arranged at the input end of the air filter tank, several grid panels are arranged in the silencer box, the grid panels are arranged in layers, an extension plate is slidably connected in the grid panels, the extension plate comprises a base plate and an adjustment plate, the base plate is hinged to the adjustment plate through a hinge rod, a notch is arranged on the base plate to wrap the adjustment plate, an external thread is arranged on the side end of the hinge rod, and the external thread is threadedly connected to the hinge rod through a nut.

[0006] First of all, the low-noise air compressor in the utility model is a frame structure. The structure that realizes the principle of the air compressor is in the frame structure, and multiple detachable side panels are set on the side of the frame structure. In order to reduce the noise generated during the use of the air compressor, an air inlet muffler grid is set at the corresponding position. The regular and small-sized grids reduce the noise directly output by the air compressor to the outside world. At the same time, when the air compressor absorbs air, it is also conducive to centralized guidance. The air compressor is equipped with an air filter tank to filter the air to be introduced into the air compressor. The structure is mainly filter cotton to avoid the direct introduction of debris into the head part to cause noise. Since the air compressor needs to have enough air when it is running, the power is relatively large and noise will be generated; therefore, a muffler box is set to reduce noise. Through the layering and staggered matching of the grid plates, the flow stroke of the airflow is increased, making the airflow smoother, thereby achieving the purpose of noise reduction and silencing. An air inlet grid is set on the bottom side of the muffler box. In the utility model, the side of the muffler box is directly sealed through a certain side. The utility model increases the flow path of the airflow by extending the plate, and the control plate on the base plate can be tilted and adjusted to change the grid layout inside the muffler box and improve the noise reduction effect. In order to ensure the airtightness of the side end of the muffler box, a groove is set at the position where the nut is tightened, so that the side ends of the corresponding grids are flush.

[0007] A better technical solution: The control plate changes its tilt angle relative to the base plate with the hinge rod as the base point, and a bending head is set at the end of the control plate. When the control plate and the base plate are shorter than the grid plate, the bending head ensures that the control plate and the base plate will not be completely retracted into the grid plate, thus achieving a limiting effect.

[0008] A better technical solution: two grid plates are provided, and the partition plates are arranged in a staggered manner, and an inclined inner plate is arranged at the bottom end of the grid plate.

[0009] A better technical solution: a middle support is set between the motor and the machine head. The middle support is a frame structure that connects and positions the casing structure of the motor with the side end of the machine head, ensuring that the output end of the motor is accurately connected to the corresponding position of the machine head.

[0010] A better technical solution: an oil and gas barrel is set at the side end of the machine head, the oil and gas barrel is connected to the machine head through an oil line, a pressure valve is set on the oil and gas barrel, and the oil output from the oil and gas barrel is first filtered through an oil filter before being introduced into the machine head. The oil filter is set to filter impurities in the oil.

[0011] A preferred technical solution: a vent is set at the air inlet muffler grille on the side panel, and a plurality of inclined guide plates are set on the vent. The vent is an opening structure of a corresponding shape set on the side panel. When the guide plate is installed, the angle between the guide plate and the ground is an acute angle, that is, when the outside air enters through the vent, it will enter along the guide plate in an inclined direction to the upper right.

[0012] A better technical solution: an electric control box is arranged at the side end of the motor, and a plurality of heat dissipation holes are arranged on the electric control box.

[0013] A preferred technical solution: heat dissipation blades are arranged on the side panels corresponding to the electric control box, and the heat dissipation blades are also arranged at an angle.

[0014] A better technical solution: a cooler assembly is arranged at the top of the air compressor.

[0015] A preferred technical solution: a control panel is provided on the outer surface of the air compressor.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model ensures the noise reduction effect of the air compressor through the coordination of multiple structures; an air inlet muffler grid is set on the side panel, a muffler box is set at the input end of the air filter tank, and a grid plate is set inside the muffler box. The grid plates are layered and staggered to increase the flow stroke of the airflow, making the airflow smoother, thereby achieving the purpose of noise reduction and silencing. The flow stroke of the airflow is increased by the extension plate, and the control plate on the base plate can be tilted and adjusted to change the grid plate layout inside the muffler box to improve the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the air compressor;

[0021] Figure 3 It is a structural schematic diagram of the back side of the utility model;

[0022] Figure 4 for Figure 3 The internal structure diagram of the air compressor position state is shown;

[0023] Figure 5 Schematic diagram of the internal structure of the muffler box;

[0024] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0025] Figure 7 This is a schematic diagram of the local structure of the control panel after tilt adjustment and locking;

[0026] Figure 8 It is a structural schematic diagram of the connection between the control plate and the bending head;

[0027] Fig. 9 for Figure 1 A partial enlarged view of point B in the middle.

[0028] Description of main reference numerals:

[0029] 100. Air compressor; 1. Electric control box; 2. Motor; 3. Oil and gas barrel; 4. Pressure valve; 5. Cooler assembly; 6. Intake valve; 7. Oil filter; 8. Machine head; 9. Center support; 10. Muffler box; 101. Inclined inner plate; 102. Grid plate; 103. Base plate; 104. Control plate; 1041. Bending head; 106. Hinge rod; 107. Nut; 11. Air filter tank; 12. First side panel; 121. Heat dissipation blade; 13. Second side panel; 131. Air inlet muffler grille; 14. Third side panel; 15. Fourth side panel; 151. Air filter inlet muffler grille; 101. Guide plate; 102. Vent. DETAILED DESCRIPTION

[0030] like Figure 1-Figure 9 As shown, a low noise air compressor, such as Figure 1-Figure 7 As shown, a low-noise air compressor includes an air compressor 100, several side panels, a motor 2, a head 8, and an air filter tank 11. A detachable side panel is arranged on the outer side of the air compressor 100, and an air inlet silencer grille 131 is arranged on the side panel. The motor 2 is drivingly connected to the head 8. An air inlet end is arranged on the head 8, and an air inlet valve 6 is installed on the air inlet end. The air inlet valve 6 is connected to the air filter tank 11 through an air pipe. A silencer box 10 is arranged at the input end of the air filter tank 11, and several grid panels 102 are arranged in the silencer box 10. The grid panels 102 are arranged in layers, and an extension plate is slidably connected in the grid panels 102. The extension plate includes a base plate 103 and an adjustment plate 104. The base plate 103 is hinged to the adjustment plate 104 through a hinge rod 106, and a notch is arranged on the base plate 103 to wrap the adjustment plate 104. An external thread is arranged on the side end of the hinge rod 106, and the hinge rod 106 is threadedly connected to the hinge rod 106 through a nut 107. A notch is arranged on the base plate 103 so that the side end of the base plate 103 forms a concave structure, and a convex structure matching the notch is arranged at one end of the regulating plate 104 connected to the notch.

[0031] Furthermore, the regulating plate 104 changes its tilt angle relative to the base plate 103 with the position of the hinge rod 106 as a base point, and a bending head 1041 is provided at the end of the regulating plate 104 .

[0032] Furthermore, two grid plates 102 are provided, and the partition plates are staggered, and an inclined inner plate 101 is provided at the bottom end of the grid plate 102 .

[0033] Furthermore, a center support 9 is provided between the motor 2 and the machine head 8 .

[0034] Furthermore, an oil and gas barrel 3 is arranged at the side end of the machine head 8, the oil and gas barrel 3 is connected to the machine head 8 through an oil circuit, a pressure valve 4 is arranged on the oil and gas barrel 3, and the oil outputted from the oil and gas barrel 3 is first filtered through an oil filter 7 and then introduced into the machine head 8.

[0035] Furthermore, a vent 102 is provided at the air inlet muffler grille 131 on the side panel, and a plurality of inclined guide plates 101 are provided on the vent 102 .

[0036] Furthermore, an electric control box 1 is arranged at the side end of the motor 2 , and a plurality of heat dissipation holes are arranged on the electric control box 1 .

[0037] Furthermore, a heat dissipation blade 121 is arranged on the side panel corresponding to the electric control box 1, a cooler assembly 5 is arranged on the top of the air compressor 100, and a control panel is arranged on the outer surface of the air compressor 100.

[0038] like Figure 1 As shown in the figure, the structure is the overall structure of the air compressor 100, which includes a plurality of detachable side panels installed on the outer surface. Figure 1 The structure of the air compressor 100 is defined as the front, back, and right side. The side panel provided on the front of the air compressor 100 is defined as the first side panel 12, on which a heat dissipation blade 121 is provided; the side panel on the right side is defined as the second side panel 13, on which an air inlet muffler grille 131 is provided; Figure 3 The front side shown in Figure 1 The back side, as shown in the figure, Figure 3 Three side panels are arranged on the front side, wherein the first and second are defined as the third side panel 14, and the third side panel 14 is also provided with an air inlet silencer grille 131, and the third side panel is defined as the fourth side panel 15, and the fourth side panel 15 is provided with an air filter inlet silencer grille 151.

[0039] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope covered by the present invention.

Claims

1. A low noise air compressor, characterized in that: It includes an air compressor, several side panels, a motor, a machine head, and an air filter tank. A detachable side panel is arranged on the outer side of the air compressor, an air inlet silencer grille is arranged on the side panel, the motor is drivingly connected to the machine head, an air inlet end is arranged on the machine head, an air inlet valve is installed on the air inlet end, the air inlet valve is connected to the air filter tank through an air pipe, a silencer box is arranged at the input end of the air filter tank, several grid panels are arranged in the silencer box, the grid panels are arranged in layers, an extension plate is slidably connected in the grid panels, the extension plate includes a base plate and an adjustment plate, the base plate is hinged to the adjustment plate through a hinge rod, and a notch is arranged on the base plate to wrap the adjustment plate, an external thread is arranged on the side end of the hinge rod, and the notch is threadedly connected to the hinge rod through a nut.

2. The low noise air compressor according to claim 1, characterized in that: The regulating plate takes the position of the hinge rod as a base point and changes its inclination angle relative to the base plate. A bending head is arranged at the end of the regulating plate.

3. The low noise air compressor according to claim 1, characterized in that: Two grid plates are provided, and the partition plates are staggered, and an inclined inner plate is provided at the bottom end of the grid plate.

4. The low noise air compressor according to claim 1, characterized in that: A center support is arranged between the motor and the machine head.

5. The low noise air compressor according to claim 1, characterized in that: An oil and gas barrel is arranged at the side end of the machine head, and the oil and gas barrel is connected with the machine head through an oil circuit. A pressure valve is arranged on the oil and gas barrel, and the oil outputted from the oil and gas barrel is first filtered through an oil filter and then introduced into the machine head.

6. The low noise air compressor according to claim 1, characterized in that: A vent is arranged at the air inlet muffler grille on the side plate, and a plurality of inclined guide plates are arranged on the vent.

7. The low noise air compressor according to claim 1, characterized in that: An electric control box is arranged at the side end of the motor, and a plurality of heat dissipation holes are arranged on the electric control box.

8. The low noise air compressor according to claim 7, characterized in that: The side panels corresponding to the electric control box are provided with heat dissipation blades.

9. The low noise air compressor according to claim 1, characterized in that: A cooler assembly is arranged on the top of the air compressor.

10. The low noise air compressor according to claim 1, characterized in that: A control panel is arranged on the outer surface of the air compressor.

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