Low-noise air compressor core and air compressor

Abstract

The low-noise air compressor core comprises a support, a telescopic assembly and a silencing assembly, the telescopic assembly comprises an air cylinder and a piston, the air cylinder is installed at one end of the support, one end of the piston is connected into the support, and the other end of the piston is arranged in the air cylinder in a sliding mode; the silencing assembly comprises a bottom cover, a surface cover and an air pipe, the bottom cover is installed on the support, and a through hole is formed in one end of the bottom cover; the surface cover covers the bracket, and the bottom cover and the surface cover define an air cavity; the air pipe communicates with one end of the surface cover away from the through hole; the air pipes, the air cavities and the through holes form air channels. The low-noise air compressor core is installed on a support through a bottom cover, and a through hole is formed in one end of the bottom cover; the surface cover covers the bracket, and the bottom cover and the surface cover define an air cavity; the air pipe, the air cavity and the through hole form an air channel, and noise generated by operation of the piston can be effectively reduced. The low-noise air compressor core is compact in structure, and noise during working is reduced.

Description

Technical Field

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

[0002] An air compressor is a device that compresses gas by pressurizing the gas to output compressed gas, and can inflate devices that need to be inflated, such as tires, and is widely used in daily life. At present, most air compressors use pistons to compress the gas in the cylinder barrel to obtain compressed air to achieve inflation of objects. However, the noise is relatively large during operation. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a low-noise air compressor core and an air compressor for the above problems.

[0004] A low-noise air compressor core includes a bracket, a telescopic component and a sound-absorbing component. The telescopic component includes a cylinder and a piston. The cylinder is installed at one end of the bracket. One end of the piston is connected inside the bracket, and the other end slides in the cylinder. The sound-absorbing component includes a bottom cover, a face cover and an air pipe. The bottom cover is installed on the bracket, and a through hole is provided at one end of the bottom cover. The face cover covers the bracket, and the bottom cover and the face cover enclose to form an air cavity. The air pipe communicates with one end of the face cover away from the through hole. The air pipe, the air cavity and the through hole form an air duct.

[0005] In one embodiment, the sound-absorbing component further includes a filter element, and the filter element is installed inside the bottom cover; the air pipe and the through hole are respectively located at both ends of the filter element.

[0006] In one embodiment, the bottom cover includes a shell part, a convex edge part and a fixing part. The convex edge part protrudes outside the shell part, and the convex edge part is arranged along the circumference of the shell part. The convex edge part is erected on the bracket; the fixing part is installed inside the shell part, and the fixing part is used to fix the filter element.

[0007] In one embodiment, the bottom cover further includes a limiting part. There are multiple limiting parts, and each limiting part is installed inside the shell part. The limiting part is used to fix the filter element.

[0008] In one embodiment, the telescopic component further includes a runner and a telescopic power element. The runner is rotatably connected inside the bracket. One end of the piston away from the cylinder is rotatably connected to one side of the runner. The telescopic power element is installed on the bracket, and the telescopic power element is used to drive the runner to rotate.

[0009] In one embodiment, the telescopic assembly further includes a roller, and the roller is installed at the power output end of the telescopic power element; the roller meshes with the inner side of the runner.

[0010] In one embodiment, the height of one side of the runner connected to the piston is less than the height of the other side.

[0011] In one embodiment, the telescopic assembly further includes a cover plate, a sealing plate and an elastic member. The cover plate covers one end of the cylinder away from the bracket; the cylinder is provided with an exhaust hole, the sealing plate is used to close or open the exhaust hole of the cylinder, and one end of the elastic member is installed on the cover plate and the other end is installed on the sealing plate.

[0012] In one embodiment, the telescopic assembly further includes an air valve and a sealing ring. One end of the piston is provided with an air inlet hole, the air valve is installed at one end of the piston close to the cylinder, and the air valve is used to close or open the air inlet hole; the sealing ring is sleeved on the piston, and the sealing ring is used to seal the cylinder and the piston.

[0013] An air compressor includes the above-mentioned low-noise air compressor core.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The low-noise air compressor core of the present utility model is installed on the bracket through the bottom cover. One end of the bottom cover is provided with a through hole; the face cover covers the bracket, and the bottom cover and the face cover enclose to form an air cavity; the air pipe is connected to one end of the face cover away from the through hole, and the air pipe, the air cavity and the through hole form an air duct, which can effectively reduce the noise generated by the operation of the piston; the structure of this low-noise air compressor core is compact, reducing the noise during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic assembly structure diagram of a low-noise air compressor core shown in an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 the cross-sectional view along the line A-A in

[0018] Figure 3 is Figure 1 the exploded view of the low-noise air compressor core shown.

[0019] The meanings of the reference numerals in the drawings are as follows:

[0020] 100, low-noise air compressor core;

[0021] 10. Bracket; 11. Step; 20. Telescopic component; 21. Cylinder; 210. Exhaust hole; 22. Piston; 220. Intake hole; 23. Air valve; 24. Cover plate; 25. Sealing plate; 26. Elastic member; 27. Runner; 28. Telescopic power element; 29. Roller

[0022] 30. Sound absorption component; 31. Bottom cover; 310. Through hole; 311. Housing part; 312. Flange part; 313. Fixed part; 314. Limiting part; 32. Face cover; 320. Air cavity; 33. Air pipe; 34. Filter element Detailed implementation mode

[0023] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation mode of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined

[0026] In the present utility model, unless otherwise clearly specified or defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified or defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0029] Please refer to Figures 1 to 3, an air compressor according to an embodiment of the utility model, includes a low-noise air compressor core 100. The low-noise air compressor core 100 includes a bracket 10, a telescopic assembly 20 and a sound insulation assembly 30. The telescopic assembly 20 includes a cylinder 21 and a piston 22. The cylinder 21 is installed at one end of the bracket 10. One end of the piston 22 is connected inside the bracket 10, and the other end slides in the cylinder 21. The sound insulation assembly 30 includes a bottom cover 31, a face cover 32 and an air pipe 33. The bottom cover 31 is installed on the bracket 10, and a through hole 310 is provided at one end of the bottom cover 31. The face cover 32 covers the bracket 10, and the bottom cover 31 and the face cover 32 enclose an air cavity 320. The air pipe 33 communicates with one end of the face cover 32 away from the through hole 310. The air pipe 33, the air cavity 320 and the through hole 310 form an air duct. This low-noise air compressor core 100 is installed on the bracket 10 through the bottom cover 31. A through hole 310 is provided at one end of the bottom cover 31. The face cover 32 covers the bracket 10, and the bottom cover 31 and the face cover 32 enclose an air cavity 320. The air pipe 33 communicates with one end of the face cover 32 away from the through hole 310, and the air pipe 33, the air cavity 320 and the through hole 310 form an air duct, which can effectively reduce the noise generated by the operation of the piston 22.

[0030] As Figures 1 to 3 shown, in this embodiment, a step 11 is provided inside the bracket 10.

[0031] Please check again Figures 1 to 3 , the telescopic assembly 20 includes a cylinder 21 and a piston 22. The cylinder 21 is installed at one end of the bracket 10. One end of the piston 22 is connected inside the bracket 10, and the other end slides in the cylinder 21. Optionally, the cylinder 21 is provided with an exhaust hole 210. One end of the piston 22 is provided with an intake hole 220. Further, the cylinder 21 and the bracket 10 are fixed by screws. In one embodiment, the telescopic assembly 20 further includes an air valve 23 and a sealing ring (not shown in the figure). The air valve 23 is installed at one end of the piston 22 close to the cylinder 21, and the air valve 23 is used to close or open the intake hole 220. Optionally, one end of the air valve 23 is riveted to the piston 22, and the other end is a movable end. Further, the air valve 23 is an elastic sheet for deformation. The sealing ring is sleeved on the piston 22, and the sealing ring is used to seal the cylinder 21 and the piston 22 to ensure airtightness. Optionally, the sealing ring is a Teflon ring, which is the prior art.

[0032] As Figure 2 And Figure 3As shown, the telescopic assembly 20 further includes a cover plate 24, a sealing plate 25 and an elastic member 26. The cover plate 24 is disposed at one end of the cylinder 21 away from the bracket 10. The sealing plate 25 is used to close or open the exhaust hole 210 of the cylinder 21. One end of the elastic member 26 is mounted on the cover plate 24, and the other end is mounted on the sealing plate 25. During use, when the piston 22 moves away from the cylinder 21, the gas pushes open the air valve 23, so that the gas enters the cylinder 21 through the intake hole 220. At this time, under the action of the elastic member 26, the sealing plate 25 closes the exhaust hole 210, and the cylinder 21 is in the suction state. When the piston 22 extends into the cylinder 21, the gas in the cylinder 21 presses the air valve 23 to close the intake hole 220. As the air pressure in the cylinder 21 further increases, the high-pressure gas pushes open the sealing plate 25, so that the gas enters the cover plate 24 from the exhaust hole 210, and the cylinder 21 is in the exhaust state.

[0033] Please check again Figure 2 And Figure 3 , the telescopic assembly 20 further includes a runner 27 and a telescopic power element 28. The runner 27 is rotatably connected inside the bracket 10. One end of the piston 22 away from the cylinder 21 is rotatably connected to one side of the runner 27. The telescopic power element 28 is mounted on the bracket 10 and is used to drive the runner 27 to rotate. Optionally, the height of one side of the runner 27 connected to the piston 22 is less than that of the other side. Therefore, the weights on both sides of the runner 27 are different. By increasing the weight of the runner 27, the vibration of the runner 27 is reduced. At the same time, the force on the runner 27 is balanced, and the service life is improved. Further, the inner side of the runner 27 is provided with teeth, and the telescopic power element 28 is a motor. In one embodiment, the telescopic assembly 20 further includes a roller 29. The roller 29 is mounted on the power output end of the telescopic power element 28. The roller 29 meshes with the inner side of the runner 27. Optionally, the roller 29 is a gear.

[0034] As Figures 1 to 3As shown, the sound insulation component 30 includes a bottom cover 31, a face cover 32 and an air pipe 33. The bottom cover 31 is installed on the bracket 10, and one end of the bottom cover 31 is provided with a through hole 310; optionally, there are multiple through holes 310; further, the bottom cover 31 includes a housing part 311, a flange part 312 and a fixing part 313. The flange part 312 protrudes outside the housing part 311, and the flange part 312 is arranged along the circumference of the housing part 311. The flange part 312 is mounted on the step 11 of the bracket 10; the fixing part 313 is installed inside the housing part 311. In one embodiment, there are two fixing parts 313. The bottom cover 31 further includes a limiting part 314, and there are multiple limiting parts 314, and each limiting part 314 is installed inside the housing part 311. In one embodiment, the face cover 32 covers the bracket 10, and the bottom cover 31 and the face cover 32 enclose to form an air cavity 320; the air pipe 33 communicates with one end of the face cover 32 away from the through hole 310; the air pipe 33, the air cavity 320 and the through hole 310 form an air duct. When the piston 22 slides, the gas flows through the air duct, effectively reducing noise; the face cover 32 and the bracket 10 are fixed by screws.

[0035] In one embodiment, the sound insulation component 30 further includes a filter element 34, and the filter element 34 is installed inside the bottom cover 31; the air pipe 33 and the through hole 310 are respectively located at both ends of the filter element 34, and the gas enters the bracket 10 after being filtered by the filter element 34; optionally, the filter element 34 is filter cotton, which can not only filter air but also play a role in sound insulation; further, the fixing part 313 is used to fix both ends of the filter element 34; the limiting part 314 is used to fix the end corners of the filter element 34, so as to firmly fix the filter element 34.

[0036] During use, the telescopic power element 28 drives the runner 27 to rotate through the roller 29, and the runner 27 then drives one end of the piston 22 to rotate, so that the other end of the piston 22 slides in the cylinder 21. Under the cooperation of the air valve 23 and the sealing plate 25, inhalation and exhalation are realized. The bottom cover 31 is installed on the bracket 10, the face cover 32 covers the bracket 10, the bottom cover 31 and the face cover 32 enclose to form an air cavity 320, the filter element 34 is installed inside the bottom cover 31, the through hole 310 and the air pipe 33 are respectively located at both ends of the filter element 34, and the air pipe 33, the air cavity 320 and the through hole 310 form an air duct. When the piston 22 operates, the gas flows through the air duct, effectively reducing noise.

[0037] The low-noise air compressor core 100 of the present utility model is installed on the bracket 10 through the bottom cover 31, and one end of the bottom cover 31 is provided with a through hole 310; the face cover 32 covers the bracket 10, and the bottom cover 31 and the face cover 32 enclose to form an air cavity 320; the air pipe 33 communicates with one end of the face cover 32 away from the through hole 310, and the air pipe 33, the air cavity 320 and the through hole 310 form an air duct, which can effectively reduce the noise generated by the operation of the piston 22; the low-noise air compressor core 100 has a compact structure and reduces the noise during operation.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0039] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A low-noise air compressor movement, characterized in that: It includes a bracket, a telescopic component and a silencer component, the telescopic component includes a cylinder and a piston, the cylinder is installed at one end of the bracket, one end of the piston is connected to the bracket, and the other end is slidably arranged in the cylinder; the silencer component includes a bottom cover, a surface cover and an air pipe, the bottom cover is installed on the bracket, and one end of the bottom cover is provided with a through hole; the surface cover is covered on the bracket, and the bottom cover and the surface cover are arranged to form an air cavity; the air pipe is connected to one end of the surface cover away from the through hole; the air pipe, the air cavity and the through hole form an air duct.

2. The low-noise air compressor movement according to claim 1, characterized in that: The muffler assembly further comprises a filter element, and the filter element is installed in the bottom cover; the air pipe and the through hole are respectively located at two ends of the filter element.

3. The low-noise air compressor movement according to claim 2, characterized in that: The bottom cover includes a shell portion, a flange portion and a fixing portion, wherein the flange portion is protruding from the outer side of the shell portion and is arranged along the circumference of the shell portion, and the flange portion is mounted on the bracket; the fixing portion is installed in the shell portion, and the fixing portion is used to fix the filter element.

4. The low-noise air compressor movement according to claim 3, characterized in that: The bottom cover further includes a limiting portion, wherein there are a plurality of limiting portions, each of which is installed on the inner side of the shell portion, and the limiting portion is used to fix the filter element.

5. The low-noise air compressor movement according to claim 1, characterized in that: The telescopic assembly also includes a rotating wheel and a telescopic power element. The rotating wheel is rotatably connected to the bracket. The end of the piston away from the cylinder is rotatably connected to one side of the rotating wheel. The telescopic power element is installed on the bracket and is used to drive the rotating wheel to rotate.

6. The low-noise air compressor movement according to claim 5, characterized in that: The telescopic assembly also includes a roller, which is installed at the power output end of the telescopic power element; the roller is meshed with the inner side of the rotating wheel.

7. The low noise air compressor movement according to claim 5, characterized in that: The height of one side of the rotating wheel connected to the piston is smaller than the height of the other side.

8. The low-noise air compressor movement according to claim 1, characterized in that: The telescopic assembly also includes a cover plate, a sealing plate and an elastic member. The cover plate is arranged on one end of the cylinder away from the bracket. The cylinder is provided with an exhaust hole. The sealing plate is used to close or open the exhaust hole of the cylinder. One end of the elastic member is installed on the cover plate, and the other end is installed on the sealing plate.

9. The low-noise air compressor movement according to claim 1, characterized in that: The telescopic assembly also includes an air valve and a sealing ring. An air inlet hole is provided at one end of the piston. The air valve is installed at one end of the piston close to the cylinder. The air valve is used to close or open the air inlet hole. The sealing ring is sleeved on the piston and is used to close the cylinder and the piston.

10. An air compressor, characterized in that: A low-noise air compressor movement comprising any one of claims 1-9.

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