Air inlet pressurizing structure of air compressor

Abstract

The utility model provides an air inlet pressurizing structure of an air compressor, and belongs to the technical field of air compressors. The problem that the air inlet efficiency of an air compressor in a high-altitude area is low is solved. The air inlet pressurization structure of the air compressor comprises a main box body, fan blades, a crankcase located in the main box body and used for air inlet of the air compressor and a filtering and silencing mechanism arranged in the main box body, the filtering and silencing mechanism comprises an air inlet and an air outlet, the air inlet is communicated with the interior of the main box body, and the air outlet is communicated with the crankcase. The fan blades can blow air towards the direction of the air inlet and enable the air to be injected into the air inlet. The fan blades of the structure can dissipate heat and cool the air compressor and also play an auxiliary air inlet role, the air inlet efficiency of natural air suction of the air compressor is improved, it is guaranteed that the normal air inlet amount of the air compressor can be achieved in a high-altitude area, and then normal operation of the air compressor is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compressors, in particular to an air intake and pressure-boosting structure of an air compressor. Background Art

[0002] An air compressor is a device used to compress gas. It is widely used in various fields of industrial production and is mainly used to provide a power source for pneumatic tools. The air compressor has a filter and a muffler. When the air compressor is working, the air compressor inhales air from the outside air. The outside air flows through the filter and the muffler in turn into the air intake chamber of the air compressor. The filter filters the dust or impurities in the air, and the muffler reduces the intake noise of the air compressor. In addition, the crankcase is generally equipped with fan blades, which are mounted on the motor shaft. When the air compressor is working, the motor shaft rotates and drives the fan blades to rotate synchronously. After the fan blades rotate, the crankcase or the motor is cooled and cooled. Traditional air compressors use normal suction during operation. Since the air in high altitude areas is relatively thin, the air intake efficiency of the air compressor is affected. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems in the existing technology and propose an air intake boosting structure for an air compressor. The technical problem to be solved by the utility model is: how to solve the problem of low air intake efficiency of air compressors in high altitude areas.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] An air intake and pressurization structure for an air compressor comprises a main housing, fan blades, a crankcase located in the main housing for air intake of the air compressor, and a filtering and silencing mechanism arranged in the main housing, characterized in that the filtering and silencing mechanism comprises an air inlet and an air outlet, the air inlet is connected to the interior of the main housing, the air outlet is connected to the crankcase, and the fan blades can blow air in the direction of the air inlet and allow the wind to flow into the air inlet.

[0006] Working principle: When the air compressor is working, the fan blades rotate, and after the fan blades rotate, the cooling air is blown to the air inlet side of the filter and silencer mechanism. On the one hand, the cooling air dissipates heat and cools down the crankcase or the motor. On the other hand, part of the cooling air is poured into the air inlet and enters the filter and silencer mechanism through the air inlet. The air enters the crankcase after being filtered and silenced by the filter and silencer mechanism. The crankcase is used for the air intake of the air compressor. The fan blades of this structure not only dissipate heat and cool down the air compressor, but also play a role in assisting the air intake, thereby improving the air intake efficiency of the naturally aspirated air compressor, ensuring that the air compressor can achieve normal air intake in high altitude areas, thereby ensuring the normal operation of the air compressor.

[0007] In the above-mentioned air intake and boosting structure of an air compressor, the main housing has an inner end and an outer end, and an axial flow air duct is provided between the inner end of the main housing and the outer end of the main housing, and the fan blade is arranged in the inner end of the main housing, and the filter and silencer mechanism is arranged at the outer end of the main housing. The crankcase is used for the air intake of the air compressor, and the crankshaft, connecting rod and other components are arranged at the crankcase. After the fan blade rotates, it blows air toward the filter and silencer mechanism, and the cooling air flows through the outer periphery of the crankcase through the axial flow air duct, taking away the heat of the crankcase, and dissipating and cooling the components in the crankcase; at the same time, the cooling air flows to the outer end of the main housing, which helps the cooling air to enter the filter and silencer mechanism through the air inlet.

[0008] In the above-mentioned air compressor intake boost structure, the filtering and silencing mechanism includes a filter and a silencing pipeline, the filter is arranged on the inner wall of the main housing, the filter has an air inlet end and an air outlet end, the main housing has an air guide wall arranged opposite to the air inlet end, there is a distance between the air inlet end and the air guide wall, one end of the silencing pipeline is connected to the air outlet end of the filter, and the other end of the silencing pipeline is connected to the crankcase. Through the arrangement of this structure, there is a distance between the air inlet end and the air guide wall, so that the cooling air blows on the air guide wall and then enters the air inlet end through the distance, thereby increasing the amount of air entering the filter and the air intake efficiency, and the air flows through the filter and then enters the silencing pipeline, and the silencing pipeline plays a role in reducing the noise of the air intake.

[0009] In the above-mentioned air compressor intake boost structure, the silencer pipeline includes an intake seat arranged on the outer wall of the crankcase, the intake seat has an intake cavity, a silencer pipe is arranged in the intake seat, the upper end of the silencer pipe is connected to the intake cavity, the lower end of the silencer pipe is connected to the inside of the crankcase, and the air outlet end of the filter is connected to the intake cavity. Through the arrangement of this structure, when the air is filtered by the filter and first enters the intake cavity, the space of the intake cavity is larger, which helps to reduce the intake noise, and the air in the intake cavity enters the crankcase through the silencer pipe, and the silencer pipe further reduces the intake noise.

[0010] In the above-mentioned air compressor air intake boost structure, the air guide wall is provided with a positioning seat, the positioning seat has a mounting cavity, the positioning seat has an air vent connecting the mounting cavity and the inside of the main box, the filter is arranged in the mounting cavity, the outer edge of the air outlet end has a pressure plate, and the end face of the positioning seat and the end face of the air intake seat cooperate to clamp the pressure plate. Through the arrangement of this structure, the arrangement of the positioning seat facilitates the installation and positioning of the filter, the arrangement of the air vent facilitates the cooling air to enter the mounting cavity, the end face of the positioning seat and the end face of the air intake seat cooperate to clamp the pressure plate to achieve the clamping and positioning of the positioning seat, and also make the air intake cavity in a closed state.

[0011] In the above-mentioned air compressor air intake and boosting structure, an air intake hole is opened at the lower end of the crankcase, and a pipe joint is connected to the lower end of the muffler pipe, and the pipe joint is inserted into the air intake hole. Through the arrangement of this structure, the arrangement of the pipe joint facilitates the lower end of the muffler pipe to be connected to the inside of the crankcase.

[0012] In the above-mentioned air compressor air intake boosting structure, the air compressor includes a cylinder head, and the outer end of the main housing has a heat dissipation channel that penetrates upward. When the fan blade rotates, the cooling air can flow through the heat dissipation channel and blow on the cylinder head. Through the arrangement of this structure, the cooling air can blow on the cylinder head along the heat dissipation channel. The fan blade not only dissipates heat and cools the crankcase and the cylinder head, but also plays an effect of assisting air intake.

[0013] In the above-mentioned air compressor air intake boosting structure, the cylinder heads have at least two or more, and the cylinder heads have multiple, so as to achieve heat dissipation and temperature reduction of the multiple cylinder heads.

[0014] In the above-mentioned air intake and boosting structure of an air compressor, there are multiple main housings, and all the main housings are coaxially connected in series or multi-axially arranged in parallel.

[0015] Compared with the prior art, the air intake and pressurization structure of the air compressor of the utility model has the following advantages: when the air compressor of this structure is working, the fan blades rotate, and after the fan blades rotate, the cooling air is blown to the air inlet side of the filtering and silencing mechanism. On the one hand, the cooling air dissipates heat and cools down the crankcase or the motor, and on the other hand, part of the cooling air is poured into the air inlet and enters the filtering and silencing mechanism through the air inlet. The air enters the crankcase after being filtered and silenced by the filtering and silencing mechanism. The crankcase is used for the air intake of the air compressor. The fan blades of this structure not only dissipate heat and cool down the air compressor, but also play a role in assisting the air intake, thereby improving the air intake efficiency of the naturally aspirated air compressor, ensuring that the air compressor can achieve normal air intake volume even in high altitude areas, thereby ensuring the normal operation of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the three-dimensional structural schematic diagrams of the utility model.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0018] Figure 3 This is the second schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 4 It is one of the partial three-dimensional structural schematic diagrams of the utility model.

[0020] Figure 5 yes Figure 4 Schematic diagram of the explosion structure.

[0021] Figure 6 This is the second schematic diagram of the partial three-dimensional structure of the utility model.

[0022] Figure 7 It is one of the schematic diagrams of the partial explosion structure of the utility model.

[0023] Figure 8 This is the second schematic diagram of the partial explosion structure of the utility model.

[0024] In the figure, 1, main box body; 1a, inner end; 1b, outer end; 100, crankcase; 101, wind guide wall; 102, air inlet; 2, fan blade; 3, filtering and silencing mechanism; 30, filter; 300, air inlet end; 301, air outlet end; 302, pressure plate; 31, silencing pipeline; 310, air inlet seat; 311, air inlet cavity; 312, silencing pipe; 313, pipe joint; 4, air inlet; 5, air outlet; 6, axial flow air duct; 8, positioning seat; 80, installation cavity; 9, air vent; 10, cylinder head; 11, heat dissipation channel. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Example 1

[0027] like Figures 1 to 8 As shown, the air intake and pressurization structure of the air compressor includes a main housing 1, a fan blade 2, a crankcase 100 located in the main housing 1 for air intake of the air compressor, and a filtering and silencing mechanism 3 arranged in the main housing 1, wherein the filtering and silencing mechanism 3 includes an air inlet 4 and an air outlet 5, wherein the air inlet 4 is connected to the inside of the main housing 1, and the air outlet 5 is connected to the crankcase 100, and the fan blade 2 can blow air in the direction where the air inlet 4 is located and allow the wind to flow into the air inlet 4. Specifically, the main housing 1 has an inner end 1a and an outer end 1b, and an axial flow air duct 6 located outside the crankcase 100 is provided between the inner end 1a of the main housing 1 and the outer end 1b of the main housing 1, the fan blade 2 is arranged at the inner end 1a of the main housing 1, and the filtering and silencing mechanism 3 is arranged at the outer end 1b of the main housing 1. When the air compressor is working, the fan blades 2 rotate. After the fan blades 2 rotate, the cooling air flows through the axial flow duct 6 to take away the heat of the crankcase 100, and then the cooling air flows to the filtering and silencing mechanism 3. Part of the cooling air enters the filtering and silencing mechanism 3 from the air inlet 4. The air enters the main box body 1 after being filtered and silenced by the filtering and silencing mechanism 3. The crankcase 100 is used for the air intake of the air compressor. The fan blades 2 of this structure not only dissipate heat and cool the air compressor, but also play a role in assisting the air intake, thereby improving the air intake efficiency of the naturally aspirated air compressor, ensuring that the air compressor can achieve normal air intake even in high altitude areas, thereby ensuring the normal operation of the air compressor.

[0028] like Figure 2 , Figures 4 to 8 As shown, the filtering and muffler mechanism 3 includes a filter 30 and a muffler pipe 31. The filter 30 is arranged on the inner side wall of the main housing 1. The filter 30 has an air inlet end 300 and an air outlet end 301. The main housing 1 has an air guide wall 101 arranged opposite to the air inlet end 300. There is a distance between the air inlet end 300 and the air guide wall 101. One end of the muffler pipe 31 is connected to the air outlet end 301 of the filter 30, and the other end of the muffler pipe 31 is connected to the crankcase 100. The muffler pipe 31 includes an air inlet seat 310 arranged on the outer side wall of the crankcase 100, and the air inlet seat 310 has an air inlet cavity 311. The air inlet seat 310 is provided with a muffler pipe 312. The upper end of the muffler pipe 312 is connected to the air inlet cavity 311, and the lower end of the muffler pipe 312 is connected to the inside of the crankcase 100. The air outlet end 301 of the filter 30 is connected to the air inlet cavity 311. The air guide wall 101 is provided with a positioning seat 8, and the positioning seat 8 has a mounting cavity 80 therein. The positioning seat 8 has a vent hole 9 connecting the mounting cavity 80 and the interior of the main housing 1. The filter 30 is arranged in the mounting cavity 80. The outer edge of the air outlet end 301 has a pressing plate 302. The end face of the positioning seat 8 and the end face of the air inlet seat 310 cooperate to clamp the pressing plate 302. The cooling air enters the mounting cavity 80 through the vent hole 9, and then enters the air inlet end 300 of the filter 30. After passing through the air inlet end 300, the air flows through the interior of the filter 30, and enters the air inlet cavity 311 from the air outlet end 301 of the filter 30, and then enters the muffler 312 from the air inlet cavity 311, and finally enters the main housing 100 from the muffler 312. During the air intake process of the air compressor, the filter 30 filters the air, and the air inlet cavity 311 and the muffler 312 reduce the noise of the intake air.

[0029] like Figure 8 As shown, the lower end of the crankcase 100 is provided with an air inlet 102, and the lower end of the muffler pipe 312 is connected with a pipe joint 313, which is inserted into the air inlet 102. The arrangement of the pipe joint 313 facilitates the lower end of the muffler pipe 312 to communicate with the interior of the crankcase 100.

[0030] like Figure 1 and Figure 2 As shown, the air compressor includes a cylinder head 10, and an upwardly penetrating heat dissipation channel 11 is provided in the outer end 1b of the main housing 1. When the fan blade 2 rotates, the cooling air can flow through the heat dissipation channel 11 and blow on the cylinder head 10. The cooling air can blow on the cylinder head 10 along the heat dissipation channel 11. The fan blade 2 not only dissipates heat and cools the crankcase 100 and the cylinder head 10, but also assists the air intake.

[0031] In this embodiment, there are at least two cylinder heads 10 and multiple main housings 1, and all main housings 1 are coaxially connected in series or multi-axially arranged in parallel.

[0032] Example 2

[0033] The content of this embodiment is basically the same as that of the above-mentioned embodiment 1, except that: in this embodiment, one end of the silencer pipe is connected to the inside of the main box, the other end of the silencer pipe is connected to one end of the filter, and the other end of the filter is connected to the crankcase. When the fan blade rotates, the cooling air first enters the silencer pipe and then enters the filter, adopting a structure of silencer first and then filter.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An air intake and pressure boosting structure for an air compressor, comprising a main housing (1), a fan blade (2), a crankcase (100) located in the main housing (1) for air intake of the air compressor, and a filtering and silencing mechanism (3) arranged in the main housing (1), characterized in that: The filtering and silencing mechanism (3) comprises an air inlet (4) and an air outlet (5), wherein the air inlet (4) is connected to the interior of the main housing (1), and the air outlet (5) is connected to the crankcase (100), and the fan blade (2) is capable of blowing air in the direction of the air inlet (4) and allowing the air to flow into the air inlet (4).

2. The air intake boosting structure of an air compressor according to claim 1, characterized in that: The main case (1) has an inner end (1a) and an outer end (1b); an axial flow air duct (6) located at the periphery of the crankcase (100) is provided between the inner end (1a) of the main case (1) and the outer end (1b) of the main case (1); the fan blade (2) is arranged at the inner end (1a) of the main case (1); and the filtering and muffler mechanism (3) is arranged at the outer end (1b) of the main case (1).

3. The air intake boosting structure of an air compressor according to claim 1, characterized in that: The filtering and silencing mechanism (3) comprises a filter (30) and a silencing pipeline (31); the filter (30) is arranged on the inner side wall of the main housing (1); the filter (30) has an air inlet end (300) and an air outlet end (301); the main housing (1) has an air guide wall (101) arranged opposite to the air inlet end (300); a distance is provided between the air inlet end (300) and the air guide wall (101); one end of the silencing pipeline (31) is connected to the air outlet end (301) of the filter (30); and the other end of the silencing pipeline (31) is connected to the crankcase (100).

4. The air intake boosting structure of an air compressor according to claim 3, characterized in that: The silencer pipeline (31) comprises an air intake seat (310) arranged on the outer wall of the crankcase (100), the air intake seat (310) having an air intake chamber (311), a silencer pipe (312) arranged in the air intake seat (310), the upper end of the silencer pipe (312) being connected to the air intake chamber (311), the lower end of the silencer pipe (312) being connected to the interior of the crankcase (100), and the air outlet end (301) of the filter (30) being connected to the air intake chamber (311).

5. The air intake boosting structure of an air compressor according to claim 4, characterized in that: The air guide wall (101) is provided with a positioning seat (8), the positioning seat (8) has a mounting cavity (80) therein, the positioning seat (8) has a vent hole (9) communicating with the mounting cavity (80) and the interior of the main box (1), the filter (30) is arranged in the mounting cavity (80), the outer edge of the air outlet end (301) has a pressing plate (302), and the end surface of the positioning seat (8) cooperates with the end surface of the air inlet seat (310) to clamp the pressing plate (302).

6. The air intake boosting structure of an air compressor according to claim 4, characterized in that: An air inlet hole (102) is provided at the lower end of the crankcase (100), a pipe joint (313) is connected to the lower end of the muffler pipe (312), and the pipe joint (313) is inserted into the air inlet hole (102).

7. An air intake boosting structure for an air compressor according to any one of claims 2 to 6, characterized in that: The air compressor comprises a cylinder head (10), and an outer end (1b) of the main housing (1) is provided with a heat dissipation channel (11) which penetrates upward. When the fan blades (2) rotate, cooling air can flow through the heat dissipation channel (11) and blow onto the cylinder head (10).

8. The air intake boosting structure of an air compressor according to claim 7, characterized in that: The cylinder head (10) has at least two.

9. The air intake boosting structure of an air compressor according to claim 1, characterized in that: The main housing (1) comprises a plurality of main housings, and all the main housings (1) are coaxially connected in series or multi-axially arranged in parallel.

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