Improved air inlet structure of air compressor

Abstract

The utility model relates to the technical field of air compressors, and discloses an improved air inlet structure of an air compressor, which comprises an air inlet cylinder, the bottom of the air inlet cylinder is fixedly connected with a sealing plate, the inner side of the air inlet cylinder is provided with a filtering mechanism, and the filtering mechanism is used for filtering air. An adjusting mechanism is arranged on the left side of the air inlet cylinder and used for adjusting the air inlet amount, the filtering mechanism comprises a bearing cylinder, the outer wall of the bearing cylinder is in sliding connection with the inner wall of the air inlet cylinder, an ultra-fine filtering cylinder is installed at the bottom of the inner side of the bearing cylinder, and a fine filtering cylinder is installed at the top of the ultra-fine filtering cylinder. According to the utility model, when air is introduced into the air inlet cylinder through the air inlet pipe, the air is conveyed downwards through the blower, is sequentially filtered through the coarse filter cylinder, the fine filter cylinder and the superfine filter cylinder, and then is communicated into the compressor through the air outlet pipe, so that the air entering the compressor is ensured to reach the clean standard, the replacement period is prolonged, and the maintenance cost is reduced.

Description

Technical Field

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

[0002] In modern industrial systems, air compressors, as indispensable general-purpose equipment, are widely used in various fields such as machinery manufacturing, chemical industry, food processing, and mining. They undertake the key task of providing compressed air power for various production processes. With the continuous improvement of industrial automation and the in-depth promotion of green manufacturing concepts, the market has placed higher demands on the performance, energy efficiency, reliability, and environmental protection of air compressors. As a key structure of air compressors, the performance of the intake structure directly affects the overall operating efficiency, energy consumption level, and service life of the machine. The intake structure design of traditional air compressors is relatively simple, and filtration is generally lacking. The problems of poor performance, high intake resistance, inconvenient maintenance, and high noise are as follows: In terms of filtration, most systems use a single filter screen or filter element, which cannot effectively filter impurities of different particle sizes. Moreover, the filter screen is prone to clogging and requires frequent disassembly and cleaning, which not only increases maintenance costs but also causes equipment downtime, affecting production continuity. In terms of intake resistance, the straight-tube intake channel design is prone to causing airflow turbulence, resulting in significant pressure loss and increased compressor energy consumption. In addition, traditional intake structures lack intelligent monitoring and adjustment functions, and cannot dynamically adjust the intake volume according to actual operating conditions, which will cause energy waste when operating at low loads, which is not in line with the current development trend of energy conservation and emission reduction.

[0003] A search revealed Chinese Patent Publication No. CN216950782U, which discloses an improved air compressor intake structure. Common air compressors often fail to adequately filter dust from the intake structure, resulting in low internal cleanliness and inconvenient cleaning. The intake structure itself is also difficult to securely install. This invention includes a top shell, with a bottom shell fitted around it. A filter assembly is located between the top and bottom shells, and an installation assembly is fixedly installed on the side of the bottom shell. This invention features a filter frame inside the bottom shell, with an arc-shaped filter screen to increase the contact area with air. During disassembly, loosening the bolts connecting the side blocks and the insert blocks allows the top shell to spring up via a top rod, facilitating the removal of the filter frame for cleaning or replacement. The top shell has threaded holes that mate with the bolts, allowing the rotating rod to rotate around the side blocks and the bottom plate to rotate, enabling flexible installation through the mounting holes. While convenient to use, the single filter element only filters large particles, potentially causing wear on the compressor's internal precision components. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an improved air intake structure for an air compressor, which aims to improve the problem that the existing technology uses a single filter element, which can only filter large particulate impurities, and will cause the precision components inside the compressor to be worn by impurities.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an improved air compressor intake structure, including an intake cylinder, a sealing plate fixedly connected to the bottom of the intake cylinder, a filter mechanism provided on the inner side of the intake cylinder for filtering air, an adjustment mechanism provided on the left side of the intake cylinder for adjusting the intake volume, the filter mechanism including a support cylinder, the outer wall of the support cylinder being slidably connected to the inner wall of the intake cylinder, an ultrafine filter cylinder installed at the bottom inner side of the support cylinder, a fine filter cylinder installed at the top of the ultrafine filter cylinder, a coarse filter cylinder installed at the top of the fine filter cylinder, a cover plate installed at the top of the coarse filter cylinder, the bottom of the cover plate fitting against the top of the intake cylinder, a fastening component provided on the outer wall of the cover plate, and a connecting component provided at the top of the ultrafine filter cylinder.

[0006] The above technical solution involves a sealing plate fixedly connected to the bottom of the air intake cylinder to ensure the airtightness and stability of the gas. A filter mechanism is installed inside the air intake cylinder to perform multi-level filtration of the air entering the compressor, ensuring the purity of the air. In order to control the intake volume, an adjustment mechanism is provided on the left side of the air intake cylinder, which can flexibly adjust the intake volume according to actual needs.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism includes an air inlet pipe, the right side of which is connected to the top left side of the air inlet cylinder, a flow guide shroud connected to the left side of the air inlet pipe, a negative pressure machine fixedly connected to the middle of the air inlet pipe, an adjustment column rotatably connected to the top left side of the negative pressure machine, a baffle fixedly connected to the bottom of the adjustment column, and a fixing component provided on the top of the negative pressure machine.

[0009] The above technical solution achieves the following: the right side of the air inlet pipe is connected to the top left area of ​​the air inlet cylinder to ensure airflow. A guide shroud is connected to the left side of the air inlet pipe to guide the airflow direction and optimize the airflow effect. A negative pressure unit is fixedly connected to the middle of the air inlet pipe. This negative pressure unit is the core component of the adjustment mechanism and is responsible for generating negative pressure to attract airflow. An adjustment column is rotatably installed on the top left side of the negative pressure unit to adjust the size and direction of the airflow.

[0010] As a further description of the above technical solution:

[0011] The fastening assembly includes multiple fixing blocks 1, each of which is fixedly connected to the outer wall of the air inlet cylinder on its adjacent side. Multiple fixing blocks 2 are fixedly connected to the outer wall of the cover plate. Each fixing block 2 has a fastening bolt threaded to its center, and the bottom of each fastening bolt is threaded to the center of the fixing block 1.

[0012] Through the above technical solution: the adjacent sides of the fixing block one are fixedly connected to the outer wall of the air inlet, ensuring the overall stability of the component. Multiple fixing blocks two are also fixedly connected to the outer wall of the cover plate. These fixing blocks two correspond to the fixing blocks one in layout. Each fixing block two has a fastening bolt threaded in the middle position. The bottom of the fastening bolt is connected to the threaded hole in the middle of the fixing block one, thereby ensuring that the entire fastening component maintains stable and reliable performance during operation.

[0013] As a further description of the above technical solution:

[0014] The connecting assembly includes multiple positioning posts, the bottom of which is fixedly connected to the top of the ultrafine filter cartridge. The bottom of the ultrafine filter cartridge is provided with multiple positioning holes, and the top of the positioning posts engages with the inner wall of the positioning holes.

[0015] Through the above technical solution: the bottom of the positioning column one is tightly connected to the top of the ultrafine filter cartridge to ensure its stability and reliability; the top of the positioning column one can engage with the inner wall of the positioning hole one, thereby ensuring that the entire component maintains a high degree of sealing and stability during operation.

[0016] As a further description of the above technical solution:

[0017] The top of the fine filter cartridge is fixedly connected with multiple positioning posts II, and the bottom of the coarse filter cartridge is provided with multiple positioning holes II. The top of the positioning posts II engages with the inner wall of the positioning holes II.

[0018] Through the above technical solution: the positioning columns are evenly distributed and have a stable structure, ensuring the overall stability of the filter cartridge; the top of the positioning column can engage with the inner wall of the positioning hole to form a stable connection.

[0019] As a further description of the above technical solution:

[0020] The fixing component includes a disc, the middle of which is fixedly connected to the outer wall of the adjusting column. A positioning pin is slidably connected to the left side of the disc. The top of the negative pressure machine has multiple holes, and the bottom of the positioning pin engages with the inner wall of the corresponding hole.

[0021] The above technical solution ensures that the middle part of the disc is tightly connected to the outer wall of the adjusting column, thus ensuring the stability and consistency between the two. The top of the negative pressure machine has multiple holes, and the bottom of the positioning pin engages with the inner wall of these holes, thereby ensuring the normal operation and high efficiency of the entire device.

[0022] As a further description of the above technical solution:

[0023] A sealing sleeve is fixedly connected to the outer wall of the air inlet pipe, and the right side of the sealing sleeve is fixedly connected to the left side of the air inlet cylinder.

[0024] The above technical solution involves a sealing sleeve fixedly connected to the outer wall of the air inlet pipe. This sealing sleeve ensures a good sealing effect at the connection between the air inlet pipe and the air inlet cylinder, thereby effectively preventing air leakage.

[0025] As a further description of the above technical solution:

[0026] An air blower is fixedly connected to the top of the cover plate, and an air outlet pipe is connected to the bottom of the sealing plate.

[0027] The above technical solution involves connecting an air blower to the top of the cover plate to ensure that the gas drawn in is blown downwards, improving filtration efficiency. At the same time, the outlet pipe can be connected to the compressor, allowing the filtered gas to enter the compressor.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, when gas is introduced into the air inlet cylinder through the air inlet pipe, it is transmitted downward by the air blower and filtered sequentially through the coarse filter cartridge, fine filter cartridge and ultrafine filter cartridge before being connected to the compressor through the air outlet pipe. The progressive filtration system ensures that the air entering the compressor reaches an extremely high cleanliness standard. At the same time, the layered filtration avoids the rapid clogging of a single filter element due to excessive load, extends the replacement cycle and reduces maintenance costs.

[0030] 2. In this utility model, gas is drawn in from the outside by a negative pressure compressor. The rotation of the adjusting column can drive the rotation of the baffle, thereby adjusting the airflow speed inside the air inlet pipe. When the compressor is in an idle standby state, the idling energy consumption is reduced. When the load increases, the maximum air intake can be ensured to maintain stable output pressure. The rotation angle can be fixed by engaging the positioning pin with the inner wall of the corresponding hole, preventing the baffle from rotating on its own due to vibration and airflow impact. Attached Figure Description

[0031] Figure 1 This is a perspective view of the front side of the intake cylinder of an improved air compressor according to the present invention.

[0032] Figure 2This is a diagram illustrating the negative pressure unit of the improved air compressor intake structure proposed in this utility model.

[0033] Figure 3 This is a split view of the regulating column of the intake structure of an improved air compressor proposed in this utility model;

[0034] Figure 4 This is a split view of the cover plate of the air intake structure of an improved air compressor proposed in this utility model;

[0035] Figure 5 This is a detailed exploded view of the intake filter cartridge of an improved air compressor according to this utility model;

[0036] Figure 6 This is a split view of the ultrafine filter cartridge of the air intake structure of an improved air compressor proposed in this utility model.

[0037] Legend:

[0038] 1. Air inlet cylinder; 2. Filtration mechanism; 201. Support cylinder; 202. Ultrafine filter cylinder; 203. Fine filter cylinder; 204. Coarse filter cylinder; 205. Cover plate; 206. Fastening assembly; 2061. Fixing block one; 2062. Fixing block two; 2063. Fastening bolt; 207. Connecting assembly; 2071. Positioning post one; 2072. Positioning hole one; 2073. Positioning post two; 2074. Positioning hole two; 3. Adjustment mechanism; 301. Air inlet pipe; 302. Flow guide; 303. Negative pressure unit; 304. Adjustment column; 305. Baffle; 306. Fixing assembly; 3061. Disc; 3062. Positioning pin; 3063. Hole; 4. Sealing plate; 5. Sealing sleeve; 6. Air blower; 7. Air outlet pipe. Detailed Implementation

[0039] 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.

[0040] Please see the appendix Figure 4 - Appendix Figure 6The present invention provides an embodiment of an improved air compressor intake structure, including an intake cylinder 1, a sealing plate 4 fixedly connected to the bottom of the intake cylinder 1, a filter mechanism 2 provided on the inner side of the intake cylinder 1 for filtering air, an adjustment mechanism 3 provided on the left side of the intake cylinder 1 for adjusting the intake volume, the filter mechanism 2 including a support cylinder 201, the outer wall of the support cylinder 201 being slidably connected to the inner wall of the intake cylinder 1, an ultrafine filter cylinder 202 installed at the bottom of the inner side of the support cylinder 201, a fine filter cylinder 203 installed at the top of the ultrafine filter cylinder 202, a coarse filter cylinder 204 installed at the top of the fine filter cylinder 203, a cover plate 205 installed at the top of the coarse filter cylinder 204, the bottom of the cover plate 205 fitting against the top of the intake cylinder 1, a fastening component 206 provided on the outer wall of the cover plate 205, and a connecting component 207 provided at the top of the ultrafine filter cylinder 202;

[0041] Specifically, a sealing plate 4 is fixedly connected to the bottom of the air intake cylinder 1 to ensure that no air leakage occurs during the process of entering the compressor. A filter mechanism 2 for air filtration is set inside the air intake cylinder 1. The filter mechanism 2 filters the air entering the compressor to ensure the cleanliness of the air and the normal operation of the compressor. The adjustment mechanism 3 adjusts the amount of air entering the compressor according to actual needs, thereby achieving precise control of the compressor's working state. The outer wall of the support cylinder 201 and the inner wall of the air intake cylinder 1 are connected by a sliding connection to ensure that the support cylinder 201 can be adjusted. An ultrafine filter cylinder 202 is installed at the bottom of the inner side of the support cylinder 201. The top of the ultrafine filter cylinder 202 is sequentially installed with a fine filter cylinder 203 and a coarse filter cylinder 204 with progressively decreasing filtration precision, forming a multi-stage filtration system to ensure that the air achieves the best cleaning effect after passing through layers of filtration. The top of the coarse filter cylinder 204 is covered with a cover plate 205. The bottom of the cover plate 205 is tightly fitted with the top of the air intake cylinder 1 to form a closed filtration space.

[0042] Please see the appendix Figure 1 - Appendix Figure 3 The regulating mechanism 3 includes an air inlet pipe 301. The right side of the air inlet pipe 301 is connected to the top left side of the air inlet cylinder 1. A guide shroud 302 is connected to the left side of the air inlet pipe 301. A negative pressure machine 303 is fixedly connected to the middle of the air inlet pipe 301. An adjusting column 304 is rotatably connected to the top left side of the negative pressure machine 303. A baffle 305 is fixedly connected to the bottom of the adjusting column 304. A fixing component 306 is provided on the top of the negative pressure machine 303. A sealing sleeve 5 is fixedly connected to the outer wall of the air inlet pipe 301. The right side of the sealing sleeve 5 is fixedly connected to the left side of the air inlet cylinder 1.

[0043] Specifically, the right side of the air inlet pipe 301 is connected to the top left side of the air inlet cylinder 1 to ensure airflow entry. A guide shroud 302 is connected to the left side of the air inlet pipe 301. The function of the guide shroud 302 is to guide the airflow direction and optimize the airflow distribution. A negative pressure machine 303 is fixedly connected to the middle of the air inlet pipe 301. The negative pressure machine 303 is responsible for generating negative pressure to promote airflow intake. An adjusting column 304 is rotatably installed on the top left side of the negative pressure machine 303 to adjust the airflow. A baffle 305 is fixedly connected to the bottom of the adjusting column 304. The function of the baffle 305 is to control the airflow rate.

[0044] Please see the appendix Figure 3 - Appendix Figure 5 The top of the fine filter cartridge 203 is fixedly connected to multiple positioning posts 2073, and the bottom of the coarse filter cartridge 204 is provided with multiple positioning holes 2074. The top of the positioning posts 2073 engages with the inner wall of the positioning holes 2074. The fastening assembly 206 includes multiple fixing blocks 2061, and each adjacent side of the fixing blocks 2061 is fixedly connected to the outer wall of the air inlet 1. The outer wall of the cover plate 205 is fixedly connected to multiple fixing blocks 2062. Block 2062 is threaded with fastening bolts 2063 in the middle. The bottom of each fastening bolt 2063 is threaded with the middle of the fixing block 2061. The connecting assembly 207 includes multiple positioning posts 2071. The bottom of each positioning post 2071 is fixedly connected to the top of the ultrafine filter cartridge 202. The bottom of each fine filter cartridge 203 is provided with multiple positioning holes 2072. The top of each positioning post 2071 engages with the inner wall of the positioning hole 2072.

[0045] Specifically, the top of the fine filter cartridge 203 is fixedly connected with multiple positioning posts 2073. These positioning posts 2073 are evenly distributed to ensure the stability and accuracy of the connection. The bottom of the coarse filter cartridge 204 has multiple matching positioning holes 2074 to ensure that the top of the positioning posts 2073 can engage with the inner wall of the positioning holes 2074 to form a stable connection structure. The adjacent sides of the fixing block 2061 are fixedly connected to the outer wall of the air inlet 1 to ensure the stability of the entire structure. The middle of the fixing block 2062 is connected to the fastening bolt 2063 by a thread. The bottom of the fastening bolt 2063 is connected to the middle of the fixing block 2061 by a thread to form a stable fastening system to ensure a tight fit between the components.

[0046] Please see the appendix Figure 3 - Appendix Figure 5The top of the cover plate 205 is fixedly connected to the air blower 6, the bottom of the sealing plate 4 is connected to the air outlet pipe 7, the fixing component 306 includes a disc 3061, the middle part of the disc 3061 is fixedly connected to the outer wall of the adjusting column 304, the left side of the disc 3061 is slidably connected to the positioning pin 3062, the top of the negative pressure machine 303 is provided with multiple holes 3063, and the bottom of the positioning pin 3062 is engaged with the inner wall of the corresponding hole 3063;

[0047] Specifically, the air blower 6 ensures the stability and reliability of the air intake filtration process. The bottom of the sealing plate 4 is connected to the air outlet pipe 7 to facilitate the flow of filtered clean gas into the compressor. The middle part of the disc 3061 is fixedly connected to the outer wall of the adjusting column 304 to ensure the stability of the overall structure. There is a slidable positioning pin 3062 on the left side of the disc 3061. Multiple holes 3063 are opened on the top of the negative pressure machine 303. The bottom of the positioning pin 3062 can engage with the inner wall of the corresponding hole 3063 to ensure the stability of airflow regulation.

[0048] Working principle: An ultrafine filter cartridge 202 is installed inside the bearing cylinder 201. A fine filter cartridge 203 is then snapped onto the top of the ultrafine filter cartridge 202. A coarse filter cartridge 204 is then installed on top of the fine filter cartridge 203. Finally, the cover plate 205 is placed on top to complete the engagement with the coarse filter cartridge 204. The fixing effect is strengthened by fastening bolts 2063. When gas enters the air inlet cylinder 1 through the air inlet pipe 301, it is transmitted downwards by the air blower 6. It is filtered sequentially through the coarse filter cartridge 204, the fine filter cartridge 203, and the ultrafine filter cartridge 202, and then connected to the compressor through the air outlet pipe 7. This progressive filtration system ensures that the air entering the compressor reaches an extremely high cleanliness standard. At the same time, the layered filtration avoids the rapid clogging of a single filter element due to excessive load, extends the replacement cycle, and reduces maintenance costs.

[0049] Gas is drawn in from the outside by the negative pressure compressor 303. Rotating the adjusting column 304 can drive the baffle 305 to rotate, thereby adjusting the airflow speed inside the air inlet pipe 301. The flow cross-sectional area of ​​the air inlet pipe 301 can be continuously changed, thereby linearly adjusting the intake flow rate. When the compressor is in an idle standby state, the idling energy consumption is reduced. When the load increases, the maximum intake volume can be ensured to maintain stable output pressure. The rotation angle can be fixed by the positioning pin 3062 engaging with the inner wall of the corresponding hole 3063, preventing the baffle 305 from rotating on its own due to vibration and airflow impact. At the same time, it can facilitate the operator to quickly confirm the current intake volume setting.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved air compressor intake structure, comprising an intake manifold (1), characterized in that: A sealing plate (4) is fixedly connected to the bottom of the air intake cylinder (1). A filter mechanism (2) is provided on the inner side of the air intake cylinder (1). The filter mechanism (2) is used to filter the air. An adjustment mechanism (3) is provided on the left side of the air intake cylinder (1). The adjustment mechanism (3) is used to adjust the air intake volume. The filtration mechanism (2) includes a support cylinder (201), the outer wall of the support cylinder (201) is slidably connected to the inner wall of the air inlet cylinder (1), an ultrafine filter cylinder (202) is installed at the bottom inner side of the support cylinder (201), a fine filter cylinder (203) is installed at the top of the ultrafine filter cylinder (202), a coarse filter cylinder (204) is installed at the top of the fine filter cylinder (203), a cover plate (205) is installed at the top of the coarse filter cylinder (204), the bottom of the cover plate (205) is in contact with the top of the air inlet cylinder (1), a fastening component (206) is provided on the outer wall of the cover plate (205), and a connecting component (207) is provided at the top of the ultrafine filter cylinder (202).

2. The intake structure of an improved air compressor according to claim 1, characterized in that: The adjustment mechanism (3) includes an air inlet pipe (301), the right side of which is connected to the top left side of the air inlet cylinder (1), the left side of which is connected to a flow guide (302), a negative pressure machine (303) is fixedly connected to the middle of the air inlet pipe (301), an adjustment column (304) is rotatably connected to the top left side of the negative pressure machine (303), a baffle (305) is fixedly connected to the bottom of the adjustment column (304), and a fixing component (306) is provided on the top of the negative pressure machine (303).

3. The intake structure of an improved air compressor according to claim 1, characterized in that: The fastening assembly (206) includes multiple fixing blocks (2061), each of which is fixedly connected to the outer wall of the air inlet cylinder (1) on one side. Multiple fixing blocks (2062) are fixedly connected to the outer wall of the cover plate (205). Each fixing block (2062) is threaded with a fastening bolt (2063) in the middle. The bottom of each fastening bolt (2063) is threaded to the middle of the fixing block (2061).

4. The intake structure of an improved air compressor according to claim 1, characterized in that: The connecting assembly (207) includes multiple positioning posts (2071), the bottom of which is fixedly connected to the top of the ultrafine filter cartridge (202). The bottom of the fine filter cartridge (203) is provided with multiple positioning holes (2072), and the top of the positioning posts (2071) engages with the inner wall of the positioning holes (2072).

5. The intake structure of an improved air compressor according to claim 1, characterized in that: The top of the fine filter cartridge (203) is fixedly connected with multiple positioning posts (2073), and the bottom of the coarse filter cartridge (204) is provided with multiple positioning holes (2074). The top of the positioning posts (2073) engages with the inner wall of the positioning holes (2074).

6. The intake structure of an improved air compressor according to claim 2, characterized in that: The fixing component (306) includes a disc (3061), the middle part of which is fixedly connected to the outer wall of the adjusting column (304). A positioning pin (3062) is slidably connected to the left side of the disc (3061). The top of the negative pressure machine (303) is provided with multiple holes (3063), and the bottom of the positioning pin (3062) engages with the inner wall of the corresponding hole (3063).

7. The intake structure of an improved air compressor according to claim 2, characterized in that: A sealing sleeve (5) is fixedly connected to the outer wall of the air inlet pipe (301), and the right side of the sealing sleeve (5) is fixedly connected to the left side of the air inlet cylinder (1).

8. The intake structure of an improved air compressor according to claim 1, characterized in that: An air blower (6) is fixedly connected to the top of the cover plate (205), and an air outlet pipe (7) is connected to the bottom of the sealing plate (4).

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