Air compressor with conical surface sealed exhaust pipe

Abstract

The utility model discloses an air compressor with a conical sealing exhaust pipe. The air compressor comprises a base, a compression assembly, a driving assembly and an exhaust assembly. The compression assembly is arranged on the base; the driving assembly is arranged on the base, is in coupling connection with the compression assembly and is used for driving the compression assembly to operate; the exhaust assembly comprises an exhaust pipe, a connecting pipe and a sealing piece. One end of the exhaust pipe is connected with the compression assembly, and the other end forms a funnel-shaped connector; a conical connector corresponding to the connector is formed at one end of the sealing piece, the sealing piece is fixed to the connector through the connector, and the other end of the sealing piece is connected with the connecting pipe; the connecting pipe is used for connecting an external oil gas barrel. Through the arrangement, the exhaust structure of the air compressor is high in vibration resistance and leakage resistance and higher in engineering adaptability and reliability.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to an air compressor with a conical seal on the exhaust pipe. Background Technology

[0002] Air compressors are common power equipment in the industrial field, widely used in manufacturing, energy, transportation and other industries. Their core structure typically includes a compression assembly, a drive assembly and an exhaust assembly, among which the sealing performance of the exhaust system has a significant impact on the stability and safety of the entire machine.

[0003] In existing technologies, air compressor exhaust systems commonly use straight-mouth sealing structures for connection, typically including clamp fixing or direct-insertion rubber sealing rings. While these structures are relatively simple to manufacture and assemble, straight-mouth structures require high assembly precision; even slight deviations can lead to incomplete contact, making them highly susceptible to leakage during long-term operation due to vibration, thermal expansion and contraction, or pressure fluctuations. Furthermore, air compressors experience significant vibration loads during operation, and without conical surface support, straight-mouth sealing structures struggle to generate stable axial locking force, easily loosening and reducing sealing effectiveness. In addition, straight-mouth seals require strict pipe alignment; any angular or positional misalignment during assembly cannot be compensated for through adaptive methods, resulting in difficult on-site installation and high maintenance costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an air compressor with a conical seal on the exhaust pipe. This air compressor has strong vibration and leakage resistance in its exhaust structure, and offers higher engineering adaptability and reliability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An air compressor with a conical seal on the exhaust pipe includes: a base, a compression assembly, a drive assembly, and an exhaust assembly; the compression assembly is mounted on the base; the drive assembly is mounted on the base and connected to the compression assembly via a coupling for driving the compression assembly; the exhaust assembly includes an exhaust pipe, a connecting pipe, and a seal; one end of the exhaust pipe is connected to the compression assembly, and the other end forms a funnel-shaped connection port; one end of the seal forms a conical connector corresponding to the connection port, which is fixed to the connection port, and the other end of the seal is connected to the connecting pipe; the connecting pipe is used to connect to an external oil and gas tank.

[0007] Furthermore, the connecting pipe and the sealing element are connected by a threaded connection. During the tightening process of the connecting pipe and the sealing element, an axial preload can be generated through the conical surface, forming a self-tightening sealing structure.

[0008] Furthermore, the connecting pipe is a metal corrugated pipe or a metal rigid pipe.

[0009] Furthermore, the taper angle of the connector is greater than or equal to 23.5° and less than or equal to 24.5°, where the taper angle refers to twice the angle between the central axis of the connector and its outer surface.

[0010] Furthermore, the taper angle of the connector is greater than or equal to 22° and less than or equal to 26°.

[0011] Furthermore, the connection between the connecting pipe and the seal is either a threaded connection or a snap ring connection.

[0012] Furthermore, the outer surface of the seal is provided with a threaded structure for connecting and securing fasteners fitted on the outside.

[0013] Furthermore, the seal is made of a high-temperature resistant elastic material.

[0014] The aforementioned air compressor achieves efficient sealing and generates axial preload by employing a tapered connection between a seal with a specific conical angle and the exhaust pipe in its exhaust structure. This improves vibration resistance and sealing reliability. Furthermore, the conical seal better accommodates angular deviations during connection. Even with installation errors, a good seal can still be achieved through the conical fit, increasing installation tolerance. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an air compressor provided by this utility model;

[0016] Figure 2 This is a cross-sectional view of the exhaust assembly provided according to this utility model. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figure 1 and Figure 2 As shown, this application provides an air compressor with a conical seal on the exhaust pipe 41. The air compressor includes: a base 1, a compression assembly 2, a drive assembly 3, and an exhaust assembly 4.

[0019] Specifically, the compression assembly 2 is mounted on the base 1; the drive assembly 3 is mounted on the base 1 and is connected to the compression assembly 2 by coupling, and is used to drive the compression assembly 2 to operate; the exhaust assembly 4 includes an exhaust pipe 41, a connecting pipe 42 and a seal 43; one end of the exhaust pipe 41 is connected to the compression assembly 2, and the other end forms a funnel-shaped connection port; one end of the seal 43 forms a conical connector corresponding to the connection port, and is fixed to the connection port by the connector, and the other end of the seal 43 is connected to the connecting pipe 42; the connecting pipe 42 is used to connect to an external oil and gas tank.

[0020] The above design effectively enhances the vibration and leakage resistance of the 41 exhaust pipes, making it particularly suitable for environments with severe vibrations. The conical fit between the connector and the connection port automatically corrects for misalignment in case of connection errors, ensuring a tight seal and enhancing the equipment's assembly tolerance and engineering adaptability. Furthermore, the sealing structure has self-tightening properties; as gas pressure increases, the clamping force between the conical surfaces increases synchronously, further strengthening the seal and significantly improving the overall sealing reliability and long-term operational stability of the machine.

[0021] like Figure 2 As shown, the connecting pipe 42 and the sealing element 43 are connected by a threaded connection. This threaded connection structure not only simplifies the assembly process but also significantly improves the sealing reliability. During the tightening process of the connecting pipe 42 and the sealing element 43, an axial preload is generated through the conical surface, forming a self-tightening sealing structure. This greatly reduces loosening and leakage caused by factors such as vibration and thermal expansion and contraction. Simultaneously, the self-tightening characteristic effectively addresses pressure fluctuations or slight joint displacement that may occur during operation, improving the dynamic sealing performance of the system. Furthermore, this structure facilitates on-site installation and subsequent maintenance, making disassembly and assembly convenient and enhancing the practicality of the project.

[0022] Specifically, the connecting pipe 42 is a metal bellows or a metal rigid pipe, so that the air compressor can be adapted and configured according to different installation requirements and operating environments.

[0023] More specifically, the taper angle of the connector is greater than or equal to 23.5° and less than or equal to 24.5°. A smaller angle enhances self-locking performance and improves resistance to loosening; while a slightly larger angle improves guidance and adjustability during assembly, balancing sealing reliability and ease of operation. The angle range of 23.5° to 24.5° is suitable for sealing applications between various elastic materials and metal conical openings. The taper angle refers to twice the angle between the connector's central axis and its outer surface.

[0024] The taper angle of the connector can also be greater than or equal to 22° and less than or equal to 26°, which makes the sealing structure more adaptable and engineering-compatible, and can also accommodate angular deviations during installation.

[0025] Furthermore, the connection between the connecting pipe 42 and the sealing element 43 is either a threaded connection or a snap ring connection. Threaded connections are compact and highly reliable, making them particularly suitable for applications requiring high internal pressure or long-term operation; snap ring connections are simple, easy to install and remove, and suitable for applications with limited installation space or frequent component replacement.

[0026] Furthermore, the outer surface of the seal 43 is provided with a threaded structure 431 for connecting and fixing fasteners sleeved on the outside, which can effectively improve the fixing strength and structural reliability of the sealing assembly under high pressure and high vibration conditions.

[0027] The seal 43 is made of a high-temperature resistant elastic material, such as fluororubber, silicone rubber or polytetrafluoroethylene (PTFE) composite elastomer, which improves the thermal stability and service life of the exhaust system sealing components.

[0028] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. An air compressor with exhaust pipe (41) taper sealing, comprising: a base (1); a compression assembly (2) arranged on the base (1); a drive assembly (3) arranged on the base (1) and coupled with the compression assembly (2) for driving the compression assembly (2) to operate; characterized in that the air compressor further comprises an exhaust assembly (4) including an exhaust pipe (41), a connecting pipe (42) and a sealing element (43); one end of the exhaust pipe (41) is connected with the compression assembly (2), and the other end forms a funnel-shaped connecting port; one end of the sealing element (43) forms a tapered connecting head corresponding to the connecting port, and is fixed to the connecting port through the connecting head, and the other end of the sealing element (43) is connected with the connecting pipe (42); the connecting pipe (42) is used for connecting an external oil and gas barrel.

2. The air compressor of claim 1, wherein, The connecting pipe (42) and the sealing element (43) are connected through threaded cooperation, and during the tightening of the connecting pipe (42) and the sealing element (43), an axial pre-tightening force can be formed through the taper to form a self-tightening sealing structure.

3. The air compressor of claim 1, wherein, The connecting pipe (42) is a metal corrugated pipe or a metal hard pipe.

4. The air compressor of claim 1, wherein, The taper angle of the connecting head is greater than or equal to 23.5° and less than or equal to 24.5°, wherein the taper angle refers to twice the included angle between the central axis of the connecting head and its outer surface.

5. The air compressor with a conical seal on the exhaust pipe (41) according to claim 1, characterized in that, The taper angle of the connecting head is greater than or equal to 22° and less than or equal to 26°.

6. The air compressor of claim 1, wherein the exhaust pipe (41) is tapered. The connecting mode between the connecting pipe (42) and the sealing element (43) is one of threaded connection or snap spring connection.

7. The air compressor with a conical seal on the exhaust pipe (41) according to claim 1, characterized in that, The outer surface of the sealing element (43) is provided with a threaded structure (431) for connecting and fixing a fastening sleeve set outside.

8. The air compressor of claim 1, wherein the exhaust pipe (41) is tapered. The sealing element (43) is made of a high-temperature-resistant elastic material.

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