Air inlet structure of air compressor

Abstract

The utility model discloses an air inlet structure of an air compressor, which relates to the technical field of air compressors and particularly comprises an air filter, a first connecting pipe and an air inlet valve structure connected with an air inlet end of the air compressor, and an air inlet end of the air inlet valve structure is connected with an air outlet end of the air filter through the first connecting pipe. The air inlet valve structure comprises a shell, a second connecting pipe is fixedly connected to the bottom of the shell, a buffering net plate is arranged at the bottom end of an inner cavity of the shell, a guide rod is movably connected to the middle of the buffering net plate, a valve plate is connected to the bottom of the guide rod, and an inner cavity of the second connecting pipe is matched with the valve plate. According to the air inlet structure of the air compressor, through the arrangement of the sealing air bag, dynamic sealing of the air outlet end of the air inlet structure is achieved, the sealing requirement of the air compressor in the compression stroke is guaranteed, when the air compressor is in the suction stroke, the sealing air bag can rebound to relieve sealing, and opening of the air outlet end of the air inlet structure is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to an air intake structure for an air compressor. Background Technology

[0002] An air compressor is a device used to compress gases and is widely used in various production and processing enterprises. When an air compressor is working, external air enters the compressor body through the intake structure for compression. The intake valve is one of the important components of the air compressor's intake structure. It regulates or cuts off the airflow into the compressor by opening and closing the valve. However, the valve repeatedly impacts the valve seat during frequent opening and closing, which can easily lead to deformation or scratches on the contact surface after long-term operation. This results in a larger sealing gap, affecting the sealing performance and increasing the air compressor's energy consumption. Furthermore, during intake, the airflow impacts the valve plate, further aggravating its wear. Based on these considerations, this application proposes an air compressor intake structure. Utility Model Content

[0003] This invention provides an air intake structure for an air compressor, which solves the problems mentioned in the background art, such as frequent impacts between the valve and valve seat causing wear or deformation of the contact surface, affecting the sealing performance of the intake valve, increasing the energy consumption of the air compressor, and the impact of airflow on the valve plate, which aggravates the wear of the valve plate.

[0004] This utility model provides the following technical solution: an air intake structure for an air compressor, including an air filter, a first connecting pipe, and an intake valve structure connected to the air intake end of the air compressor. The intake end of the intake valve structure is connected to the outlet end of the air filter through the first connecting pipe. The intake valve structure includes a housing, a second connecting pipe fixedly connected to the bottom of the housing, a buffer mesh plate provided at the bottom of the inner cavity of the housing, a guide rod movably connected to the middle of the buffer mesh plate, a valve plate connected to the bottom of the guide rod, the inner cavity of the second connecting pipe being adapted to the valve plate, a first buffer pad provided at the top of the valve plate, a second buffer pad adapted to the first buffer pad provided at the top of the inner cavity of the second connecting pipe, a sealing airbag provided on the outer wall of the valve plate, and a gas flow channel adapted to the sealing airbag provided at the bottom of the valve plate.

[0005] Preferably, the inner cavity of the housing is provided with a lifting assembly, the guide rod is driven by the lifting assembly, and a displacement sensor is provided at the top of the inner cavity of the housing.

[0006] Preferably, the buffer mesh plate is located between the air inlet end of the housing and the valve plate, and a self-lubricating sleeve is provided in the middle of the buffer mesh plate, and the guide rod is movably connected to the self-lubricating sleeve.

[0007] Preferably, the gas flow channel includes a main flow channel located at the center of the bottom end of the valve plate and a branch flow channel communicating with the main flow channel, and the inner sidewall of the sealing airbag is uniformly provided with inflation holes adapted to the branch flow channels.

[0008] Preferably, the top of the valve plate is uniformly provided with micro heat pipes, and the valve plate is provided with heat-conducting pipes. One end of the heat-conducting pipes is in contact with the evaporation section of the micro heat pipes, and the other end of the heat-conducting pipes extends into the inner cavity of the sealing airbag.

[0009] Preferably, the buffer mesh is inclined, with its high end located on the side closest to the air inlet end of the housing.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The air intake structure of this air compressor uses buffer pad one and buffer pad two to reduce the impact force when the valve plate closes, thereby reducing the probability of valve plate deformation. In addition, soft contact is achieved between the valve plate and the second connecting pipe, reducing the probability of scratches on the valve plate. The buffer mesh plate reduces the impact force of airflow on the valve plate, further extending the service life of the valve plate and improving the reliability of the air intake structure.

[0012] 2. The air intake structure of this air compressor achieves dynamic sealing of the air outlet end of the air intake structure through the setting of the sealing airbag, ensuring the sealing requirements of the air compressor when it is in the compression stroke. When the air compressor is in the intake stroke, the sealing airbag can rebound to release the seal, making it easy to open the air outlet end of the air intake structure. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of this utility model;

[0014] Figure 2 This is a bottom view of the structure of this utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the intake valve structure of this utility model;

[0016] Figure 4 The structure of this utility model Figure 3 Diagram showing the view from below;

[0017] Figure 5 This is an exploded view of the valve plate structure of this utility model.

[0018] In the diagram: 1. Air filter; 2. First connecting pipe; 3. Housing; 4. Second connecting pipe; 5. Valve plate; 6. Servo motor; 7. Ball screw; 8. Guide rod; 9. Buffer mesh plate; 10. Sealing airbag; 11. Buffer pad two; 12. Miniature heat pipe; 13. Buffer pad one; 14. Displacement sensor; 15. Connecting rod; 16. Ball nut; 17. Self-lubricating sleeve; 18. Main channel; 19. Branch channel; 20. Heat conduction pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides an embodiment: Please refer to Figures 1-5 An air intake structure for an air compressor includes an air filter 1, a first connecting pipe 2, and an intake valve structure connected to the air intake end of the air compressor. The intake end of the intake valve structure is connected to the outlet end of the air filter 1 through the first connecting pipe 2, and the outlet end of the intake valve structure is connected to the air intake end of the air compressor. When the air compressor is working, external gas can enter the air compressor through the air filter 1, the first connecting pipe 2, and the outlet end of the intake valve structure. The air filter 1 is existing technology, which can filter and physically intercept impurities in the air based on filter screens, activated carbon, etc., and will not be described in detail here.

[0021] The intake valve structure includes a housing 3, with a second connecting pipe 4 fixedly connected to the bottom of the housing 3. A buffer mesh plate 9 is installed at the bottom of the inner cavity of the housing 3. A guide rod 8 is movably connected to the middle of the buffer mesh plate 9, and a valve plate 5 is connected to the bottom of the guide rod 8. The buffer mesh plate 9 is located between the intake end of the housing 3 and the valve plate 5. Through the setting of the buffer mesh plate 9, the buffer mesh plate 9 can sort the airflow, reduce the impact force of the airflow on the valve plate 5, and thus reduce the wear of the valve plate 5 caused by the airflow impact. The buffer mesh plate 9 is inclined, with its high end located on the side closer to the intake end of the housing 3. This setting gives the buffer mesh plate 9 a self-cleaning ability, preventing the accumulation of impurity particles. The buffer mesh plate 9 can be set according to requirements and is not limited here.

[0022] The inner cavity of the second connecting pipe 4 is adapted to the valve plate 5. When the intake valve structure is in the closed state, the valve plate 5 is located in the inner cavity of the second connecting pipe 4. A buffer pad 13 is provided on the top of the valve plate 5, and a buffer pad 21 adapted to the buffer pad 13 is provided on the top of the inner cavity of the second connecting pipe 4. By setting the buffer pad 13 and the buffer pad 21, the impact force when the valve plate 5 is closed can be reduced, thereby reducing the probability of deformation of the valve plate 5. In one embodiment of this application, the buffer pad 13 and the buffer pad 21 are both made of high temperature resistant and oil resistant perfluoroether rubber.

[0023] A sealing airbag 10 is provided on the outer wall of the valve plate 5, and a gas flow channel adapted to the sealing airbag 10 is provided at the bottom end of the valve plate 5. The gas flow channel includes a main flow channel 18 located in the middle of the bottom end of the valve plate 5 and a branch flow channel 19 connected to the main flow channel 18. The inner wall of the sealing airbag 10 is uniformly provided with inflation holes adapted to the branch flow channel 19. Through the setting of the gas flow channel, when the air compressor is in the compression stroke, the excess gas in the compression chamber of the air compressor can enter the sealing airbag 10 through the gas flow channel, causing the sealing airbag 10 to expand in volume. The sealing airbag 10 is used to achieve the seal between the valve plate 5 and the second connecting pipe 4, improving the sealing performance of the intake valve structure. When the air compressor is in the intake stroke, the excess gas in the sealing airbag 10 can be discharged under the action of the rebound force of the sealing airbag 10, releasing the seal between the valve plate 5 and the second connecting pipe 4, facilitating the movement of the valve plate 5.

[0024] Micro heat pipes 12 are evenly distributed on the top of the valve plate 5, and heat-conducting pipes 20 are disposed on the valve plate 5. One end of the heat-conducting pipe 20 contacts the evaporation section of the micro heat pipe 12, and the other end of the heat-conducting pipe 20 extends into the inner cavity of the sealing airbag 10. Through the arrangement of the micro heat pipes 12 and the heat-conducting pipe 20, the sealing airbag 10 can be cooled, facilitating its use. In one embodiment of this application, the sealing airbag 10 can be made of oil-resistant and high-temperature-resistant perfluoroether rubber. The heat-conducting pipe 20 can be made of graphene. The materials of both the sealing airbag 10 and the heat-conducting pipe 20 can be set according to requirements, and the size of the micro heat pipe 12 can be set according to requirements, without limitation.

[0025] In addition, the inner cavity of the housing 3 is equipped with a lifting assembly. The guide rod 8 is driven by the lifting assembly. When the lifting assembly moves the guide rod 8 upward, the guide rod 8 moves the valve plate 5 upward, which can realize the closing of the intake valve structure. When the lifting assembly moves the guide rod 8 downward, the guide rod 8 moves the valve plate 5 downward, which can realize the opening of the intake valve structure. The structure of the lifting assembly can be set according to requirements and is not limited here.

[0026] In one embodiment of this application, the lifting assembly includes a ball screw 7 movably connected to the top of the inner cavity of the housing 3 and a servo motor 6 connected to the housing 3. The output shaft end of the servo motor 6 is connected to the ball screw 7 through a reducer. The outer ring of the ball screw 7 is threaded with a ball nut 16. The guide rod 8 is connected to the ball nut 16 through a connecting rod 15. When the servo motor 6 drives the ball screw 7 to rotate, the ball nut 16 moves in the direction of the ball screw 7. When the ball nut 16 moves, it can drive the guide rod 8 to move through the connecting rod 15, thereby realizing the opening and closing of the valve plate 5.

[0027] A displacement sensor 14 is installed at the top of the inner cavity of the housing 3. With the installation of the displacement sensor 14, the displacement sensor 14 can detect the position of the guide rod 8 when the air intake structure is in use, and upload the detection result to the controller of the air compressor. The controller of the air compressor can determine whether the guide rod 8 has moved into place, thereby reducing the impact of wear on the ball screw 7 and facilitating the use of the air intake structure.

[0028] A self-lubricating sleeve 17 is provided in the middle of the buffer mesh plate 9. The guide rod 8 is movably connected to the self-lubricating sleeve 17. By providing the self-lubricating sleeve 17, the friction between the guide rod 8 and the buffer mesh plate 9 can be reduced. In one embodiment of this application, the self-lubricating sleeve 17 is a porous oil-containing type. The inner wall of the self-lubricating sleeve 17 is uniformly provided with holes, and the holes are filled with lubricating oil. The friction between the self-lubricating sleeve 17 and the guide rod 8 causes the lubricating oil to melt and seep out, thereby reducing the friction.

[0029] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0030] In summary: When in use, the air intake structure of this air compressor is installed on the air compressor. When the air compressor is in the intake stroke, the lifting assembly drives the guide rod 8 to move, and the guide rod 8 drives the valve plate 5 to move until the intake valve structure is in the open state. The outside air is filtered by the air filter 1 and enters the air compressor along the first connecting pipe 2 and the intake valve structure. During this process, the buffer mesh plate 9 sorts the gas entering the intake valve structure, reduces the impact force of the airflow on the valve plate 5, and thus reduces the wear of the valve plate 5. After the intake is completed, the controller inside the air compressor drives the valve plate 5 to move in the opposite direction through the lifting component until the intake valve structure is in the closed state. When the air compressor is in the compression stroke, the excess air in the compression chamber of the air compressor enters the branch channel 19 through the main channel 18. The gas in the branch channel 19 enters the sealing airbag 10 through the inflation hole, causing the sealing airbag 10 to expand until the sealing airbag 10 seals the gap between the valve plate 5 and the second connecting pipe 4. The sealing airbag 10 ensures the sealing performance of the intake valve structure. When the air compressor is in the intake stroke, under the action of the rebound force of the sealing airbag 10, the excess gas in the sealing airbag 10 is discharged through the gas flow channel, releasing the seal between the valve plate 5 and the second connecting pipe 4, which facilitates the opening of the intake valve structure.

[0031] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air intake structure for an air compressor, comprising an air filter (1), a first connecting pipe (2), and an intake valve structure connected to the air intake end of the air compressor, characterized in that: The air intake end of the air intake valve structure is connected to the air outlet end of the air filter (1) through the first connecting pipe (2). The air intake valve structure includes a housing (3). The bottom of the housing (3) is fixedly connected to a second connecting pipe (4). A buffer mesh plate (9) is provided at the bottom of the inner cavity of the housing (3). A guide rod (8) is movably connected to the middle of the buffer mesh plate (9). A valve plate (5) is connected to the bottom of the guide rod (8). The inner cavity of the second connecting pipe (4) is adapted to the valve plate (5). A buffer pad one (13) is provided at the top of the valve plate (5). A buffer pad two (11) adapted to the buffer pad one (13) is provided at the top of the inner cavity of the second connecting pipe (4). A sealing airbag (10) is provided on the outer wall of the valve plate (5). A gas flow channel adapted to the sealing airbag (10) is provided at the bottom of the valve plate (5).

2. The air intake structure of an air compressor according to claim 1, characterized in that: The inner cavity of the housing (3) is provided with a lifting assembly, the guide rod (8) is driven by the lifting assembly, and a displacement sensor (14) is provided at the top of the inner cavity of the housing (3).

3. The air intake structure of an air compressor according to claim 1, characterized in that: The buffer mesh plate (9) is located between the air inlet end of the housing (3) and the valve plate (5). A self-lubricating sleeve (17) is provided in the middle of the buffer mesh plate (9). The guide rod (8) is movably connected to the self-lubricating sleeve (17).

4. The air intake structure of an air compressor according to claim 1, characterized in that: The gas flow channel includes a main flow channel (18) located at the bottom center of the valve plate (5) and a branch flow channel (19) connected to the main flow channel (18). The inner sidewall of the sealing airbag (10) is uniformly provided with inflation holes adapted to the branch flow channel (19).

5. The air intake structure of an air compressor according to claim 1, characterized in that: The valve plate (5) is uniformly provided with micro heat pipes (12) on its top and a heat pipe (20) is provided on the valve plate (5). One end of the heat pipe (20) is in contact with the evaporation section of the micro heat pipe (12) and the other end of the heat pipe (20) extends into the inner cavity of the sealing airbag (10).

6. The air intake structure of an air compressor according to claim 3, characterized in that: The buffer mesh plate (9) is inclined, and the high end of the buffer mesh plate (9) is located on the side near the air inlet end of the housing (3).

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