Improved air inlet structure of air compressor
By introducing a filter cartridge and a spherical curved surface filter into the air compressor intake structure, combined with an L-shaped molecular sieve seat, the problems of sealing leakage and noise are solved, achieving impurity filtration and noise reduction, and improving sealing performance and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ZENIX COMPRESSOR CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-17
AI Technical Summary
The existing air compressor has a poor air intake structure seal, which makes it prone to air leakage. Furthermore, air impurities can enter the compressor tank, causing corrosion and noise problems.
An improved air intake structure was designed, which includes installing a filter cartridge seat and a spherical curved surface filter inside the first connector, combined with an L-shaped molecular sieve seat and molecular sieve particles to achieve air filtration and noise reduction, and achieving a sealed connection through a threaded connecting post.
It effectively filters out impurities in the air, prevents corrosion of the compressor tank, reduces airflow noise, and improves sealing performance and service life.
Smart Images

Figure CN224134795U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air compressor technology and relates to an improved air intake structure for an air compressor. Background Technology
[0002] An air compressor is a device used to compress gas. Similar in structure to a water pump, an air compressor requires an intake structure for air intake during operation. Existing air compressor intake structures have poor sealing, making them prone to leakage and affecting the intake process. Patent publication number CN222228788U discloses a novel air compressor intake structure, including a compressor pipe and a support ring, with the support ring fixed inside the compressor pipe on the right side. This design conceals the first and second air cushions during use, preventing them from contacting external air and liquids and accelerating their aging. This not only improves the service life of the first and second air cushions but also ensures a good seal between the intake pipe and the compressor pipe. Through a monitoring function, the sealing status of the intake pipe and compressor pipe connection can be monitored after the first air cushion expands, preventing leakage due to insufficient expansion of the first air cushion and improving the stability of the sealed connection between the intake pipe and the compressor pipe.
[0003] However, the aforementioned intake structure has shortcomings in terms of compressed air filtration and noise reduction. Fine impurities in the air can easily cause corrosion of the compressor tank when they enter it. Therefore, we have designed an improved intake structure for the air compressor. Summary of the Invention
[0004] The purpose of this invention is to provide an improved air intake structure for an air compressor to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solution: an improved air compressor intake structure, including an intake pipe, with a first connector and a second connector sealed at both ends of the intake pipe. A filter cartridge seat is installed inside the first connector. One end of the filter cartridge seat is provided with a spherical curved surface formed by axial stretching. A sealing sleeve is provided on one side of the spherical curved surface. The sealing sleeve causes the filter cartridge seat and the spherical curved surface to be locked inside the first connector. A pull rod passing through the spherical curved surface is provided at the center of one end of the filter cartridge seat. A sealing end cover is provided at one end of the pull rod. The sealing end cover seals the opening of the first connector and achieves a seal.
[0006] In the aforementioned improved air compressor intake structure, the spherical surface is a solid structure and a flow channel is provided on the spherical surface to allow gas flow.
[0007] In the above-mentioned improved air compressor intake structure, an air guide plate is installed inside the second connector, and an L-shaped molecular sieve seat is provided at one end of the air guide plate. The interior of the L-shaped molecular sieve seat is filled with molecular sieve particles, and the orthographic projection of the molecular sieve particles is a triangular structure.
[0008] In the air intake structure of the improved air compressor described above, a vent is provided at the bottom of the L-shaped molecular sieve seat, and the vent is connected to the air guide plate.
[0009] In the aforementioned improved air compressor intake structure, a molecular sieve plug is sealed at the opening of the second connector.
[0010] In the aforementioned improved air compressor intake structure, both the middle portion of the first connector and the middle portion of the second connector are provided with integrally formed threaded connecting posts.
[0011] Compared with the prior art, the advantages of the improved air intake structure of the air compressor of this utility model are as follows: by installing a filter cartridge seat inside the first connector, one end of the filter cartridge seat is provided with a spherical curved surface formed by stretching along the axial direction. The spherical curved surface is a solid structure and has flow channels that allow gas to flow through. This can filter the incoming air, remove impurities from the air, and prevent corrosion inside the compressor tank. The spherical curved surface formed by stretching along the axial direction and the flow channels allow the sound of the airflow to be better absorbed, effectively reducing the noise of the airflow. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the air intake structure of an improved air compressor according to this utility model.
[0013] Figure 2 This is a schematic diagram of the internal structure of the first connector of the air intake structure of an improved air compressor according to this utility model.
[0014] Figure 3 This is an internal schematic diagram of the first connector of the air intake structure of an improved air compressor according to this utility model.
[0015] In the diagram, 1 is the intake pipe; 2 is the first connector; 3 is the second connector; 4 is the threaded connecting column; 5 is the filter cartridge seat; 6 is the spherical curved surface; 7 is the sealing sleeve; 8 is the pull rod; 9 is the sealing end cover plate; 10 is the air guide plate; 11 is the L-shaped molecular sieve seat; 12 is the molecular sieve particles; 13 is the ventilation section; and 14 is the molecular sieve plug plate. Detailed Implementation
[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0017] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses an improved air intake structure for an air compressor.
[0018] Example 1: The air intake structure includes an air intake pipe 1. A first connector 2 and a second connector 3 are sealed at both ends of the air intake pipe 1. An integrally formed threaded connecting post 4 is provided at the middle of both the first connector 2 and the middle of the second connector 3. A filter cartridge seat 5 is installed inside the first connector 2. One end of the filter cartridge seat 5 has a spherical curved surface 6 formed by axial stretching. A sealing sleeve 7 is provided on one side of the spherical curved surface 6, allowing the filter cartridge seat 5 and the spherical curved surface 6 to be locked inside the first connector 2. A pull rod 8 passing through the spherical curved surface 6 is provided at the center of one end of the filter cartridge seat 5. A sealing end cover 9 is provided at one end of the pull rod 8, sealing the opening of the first connector 2. The spherical curved surface 6 is a solid structure, and flow channels are provided on the spherical curved surface 6 to allow gas flow.
[0019] This allows the incoming air to be filtered, removing impurities and preventing corrosion inside the compressor tank. The spherical curved surface formed by axial stretching and the flow channels of the gas flow also allow the sound of the airflow to be better absorbed, effectively reducing the noise of the airflow.
[0020] Example 2: The air intake structure includes an air intake pipe 1. A first connector 2 and a second connector 3 are sealed at both ends of the air intake pipe 1. An integrally formed threaded connecting post 4 is provided in the middle of both the first connector 2 and the middle of the second connector 3. An air guide plate 10 is installed inside the second connector 3. An L-shaped molecular sieve seat 11 is provided at one end of the air guide plate 10. The L-shaped molecular sieve seat 11 is filled with molecular sieve particles 12, the orthographic projection of which is a triangular structure. A venting section 13 is provided at the bottom of the L-shaped molecular sieve seat 11, and the venting section 13 connects to the air guide plate 10. A molecular sieve plug 14 is sealed at the opening of the second connector 3.
[0021] This allows the air to be dried through the molecular sieve particles 12 of the L-shaped molecular sieve seat 11, preventing moisture from entering the compressor tank and improving its service life.
[0022] In use: The intake pipe 1 of this solution is sealed at both ends with a first connector 2 and a second connector 3. The first connector 2 is connected to the compression tank, and the second connector 3 is connected to the compressor power unit.
[0023] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. An improved air intake structure of an air compressor comprising an air intake duct (1), characterized in that, The intake pipe (1) is sealed at both ends with a first connector (2) and a second connector (3). A filter cartridge seat (5) is installed inside the first connector (2). One end of the filter cartridge seat (5) is provided with a spherical curved surface (6) formed by stretching along the axial direction. A sealing sleeve (7) is provided on one side of the spherical curved surface (6). The sealing sleeve (7) makes the filter cartridge seat (5) and the spherical curved surface (6) fit inside the first connector (2). A pull rod (8) passing through the spherical curved surface (6) is provided at the center of one end of the filter cartridge seat (5). A sealing end cover (9) is provided at one end of the pull rod (8). The sealing end cover (9) seals the opening of the first connector (2) and achieves a seal.
2. An improved air inlet structure for an air compressor as claimed in claim 1, wherein, The spherical surface (6) is a solid structure and has flow channels that allow gas to flow.
3. An improved air inlet structure of an air compressor as claimed in claim 1 wherein, The second connector (3) is equipped with an air guide plate (10), and an L-shaped molecular sieve seat (11) is provided at one end of the air guide plate (10). The L-shaped molecular sieve seat (11) is filled with molecular sieve particles (12), and the orthographic projection of the molecular sieve particles (12) is a triangular structure.
4. An improved air inlet structure for an air compressor as claimed in claim 3 wherein, The bottom of the L-shaped molecular sieve seat (11) is provided with a ventilation section (13), which is connected to the air guide plate (10).
5. An improved air inlet structure of an air compressor as claimed in claim 3 wherein, The opening of the second connector (3) is sealed with a molecular sieve plug (14).
6. An improved air inlet structure of an air compressor as claimed in claim 1 wherein, Both the middle part of the first connector (2) and the middle part of the second connector (3) are provided with integrally formed threaded connecting posts (4).
Citation Information
Patent Citations
Novel air inlet structure of air compressor
CN222228788U