Lightweight air compressor cylinder cover

The combination of the arc-shaped mounting groove and the positioning ring enables precise positioning of the air compressor cylinder head and the housing, solving the problem of poor sealing caused by housing misalignment and improving product qualification rate and assembly efficiency.

CN224174241UActive Publication Date: 2026-04-28WENLING MEIHENG ELECTROMECHANICAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENLING MEIHENG ELECTROMECHANICAL CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing connection method between the air compressor cylinder head and the housing is prone to causing housing misalignment, affecting sealing performance and assembly efficiency, and reducing product qualification rate.

Method used

The positioning structure employs an arc-shaped mounting groove and a positioning ring, achieving precise positioning of the housing and cylinder head through welding. Combined with a positioning ring and retaining ring made of highly elastic material, accurate radial positioning is ensured.

Benefits of technology

This improved the assembly precision of the cylinder head and housing, avoided poor sealing and component interference, and increased the product qualification rate and assembly efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224174241U_ABST
    Figure CN224174241U_ABST
Patent Text Reader

Abstract

The utility model provides a lightweight air compressor cylinder cover, and belongs to the technical field of machinery. The problems that due to interaction force between a screw and a shell, the shell is prone to deviation, sealing between the shell and a cylinder cover is not tight, normal operation of an air compressor is affected, and the qualified rate of products and the assembling efficiency of the products are reduced are solved. The light-weight air compressor cylinder cover comprises a cylinder cover body and a shell arranged at the bottom of the cylinder cover body, a mounting table is arranged at the bottom of the cylinder cover body, a plurality of bolt holes are formed in the mounting table in the circumferential direction, a containing table corresponding to the mounting table is arranged in the shell body, and the containing table is connected with the shell body through a fixing ring. Bolt grooves corresponding to the bolt holes are formed in the placement table, the cylinder cover is connected with the placement table through bolts, an arc-shaped mounting groove for positioning and mounting the placement table is formed in the edge of the mounting table, and a positioning ring is arranged on the wall of the mounting groove in the circumferential direction of the mounting groove. The device has the advantage that the assembling efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to an oil-free air compressor, particularly a lightweight air compressor cylinder head. Background Technology

[0002] An air compressor typically consists of its main body, a cylinder head mounted on the main body, and a housing located inside the cylinder head and connected to it. Currently, the housing is fixed to the cylinder head with screws, which requires an additional step of fixing the screws during assembly. During the tightening of the screws, the housing is prone to shifting due to the interaction force between the screws and the housing. Once the housing shifts, it may lead to poor sealing between the housing and the cylinder head, thereby affecting the normal operation of the air compressor, reducing the product qualification rate and assembly efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a positioning structure for a lightweight air compressor cylinder head.

[0004] The objective of this utility model can be achieved through the following technical solution: A lightweight air compressor cylinder head, characterized in that it includes a cylinder head and a housing disposed at the bottom of the cylinder head. The bottom of the cylinder head has a mounting platform, and a plurality of bolt holes are circumferentially opened on the mounting platform. A placement platform corresponding to the mounting platform is disposed inside the housing, and the placement platform is connected to the housing through a fixing ring. The placement platform has bolt grooves corresponding to the bolt holes. The cylinder head is connected to the placement platform through bolts. The edge of the mounting platform has a mounting groove for positioning and installing the placement platform. The mounting groove is arc-shaped. A positioning ring is disposed circumferentially on the groove wall of the mounting groove. The positioning ring is provided with a retaining ring for locking. A placement frame that fits into the mounting groove is disposed at the top of the placement platform. The placement frame has a positioning groove for installing the positioning ring. A retaining groove for installing the retaining ring is disposed inside the positioning groove. The housing is radially positioned by the cooperation of the positioning ring and the positioning groove.

[0005] In the aforementioned lightweight air compressor cylinder head, the housing, retaining ring, and placement platform are integrally formed using a welding process.

[0006] In the aforementioned lightweight air compressor cylinder head, the cylinder head has symmetrical intake and exhaust pipes.

[0007] In the aforementioned lightweight air compressor cylinder head, the positioning ring and retaining ring are made of a highly elastic material.

[0008] In the aforementioned lightweight air compressor cylinder head, the placement platform is hollow inside.

[0009] Compared with existing technologies, this lightweight air compressor cylinder head features a positioning ring on the arc-shaped mounting groove wall at the edge of the mounting platform, and a positioning groove on the top of the mounting frame. The combination of these two features achieves precise radial positioning of the housing and cylinder head. This precise positioning ensures that the relative positions of the cylinder head and housing are accurate after assembly, avoiding problems such as poor sealing and component interference caused by deviations in the production position during assembly. This improves the overall product qualification rate and assembly efficiency. Attached Figure Description

[0010] Figure 1 This is a 3D view of the cylinder head of a lightweight air compressor.

[0011] Figure 2 This is a front sectional view of the cylinder head of this lightweight air compressor.

[0012] Figure 3 This is a side sectional view of the cylinder head of this lightweight air compressor.

[0013] In the diagram, 1 is the cylinder head; 2 is the housing; 3 is the mounting platform; 4 is the bolt hole; 5 is the placement platform; 6 is the retaining ring; 7 is the bolt groove; 8 is the mounting groove; 9 is the positioning ring; 10 is the retaining ring; 11 is the placement bracket; 12 is the positioning groove; 13 is the intake pipe; and 14 is the exhaust pipe. Detailed Implementation

[0014] 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.

[0015] like Figure 1 , Figure 2 , Figure 3As shown, the lightweight air compressor cylinder head 1 includes a cylinder head 1 and a housing 2 disposed at the bottom of the cylinder head 1. The bottom of the cylinder head 1 has a mounting platform 3, and several bolt holes 4 are circumferentially opened on the mounting platform 3. A placement platform 5 corresponding to the mounting platform 3 is disposed inside the housing 2, and the placement platform 5 is connected to the housing 2 by a fixing ring 6. The placement platform 5 has bolt grooves 7 corresponding to the bolt holes 4. The cylinder head 1 is connected to the placement platform 5 by bolts. The edge of the mounting platform 3 has a mounting groove 8 for positioning and installing the placement platform 5. The mounting groove 8 is arc-shaped, and a positioning ring 9 is disposed circumferentially on the groove wall of the mounting groove 8. The positioning ring 9 is provided with a locking mechanism for engaging. Ring 10, located on top of the placement platform 5, has a placement rack 11 that fits into the mounting groove 8. The placement rack 11 fits tightly into the positioning groove 12 to reduce the gap between the mounting platform 3 and the placement platform 5. The placement rack 11 has a positioning groove 12 for installing the positioning ring 9. The positioning groove 12 has a slot for installing the retaining ring 10. The mounting platform 3 and the placement platform 5 are fixed by the cooperation of the retaining ring 10 and the slot. The housing 2 is radially positioned by the cooperation of the positioning ring 9 and the positioning groove 12. The radial positioning of the housing 2 by the cooperation of the positioning ring 9 and the positioning groove 12 ensures that the relative position between the housing 2 and the cylinder head 1 is accurate.

[0016] To elaborate further, the shell 2, the fixing ring 6, and the placement platform 5 are integrally formed by welding. This integral forming not only improves the overall strength and stability of the structure and reduces the risk of failure caused by loose connections between components, but also helps to reduce the overall weight and achieve the design goal of lightweighting.

[0017] To elaborate further, the cylinder head 1 has symmetrical intake pipes 13 and exhaust pipes 14. The intake pipe 13 is used to introduce air into the air compressor, while the exhaust pipe 14 is used to discharge the compressed air. The symmetrical design helps to ensure the uniformity and stability of air flow and improve the working efficiency of the air compressor.

[0018] To elaborate further, the positioning ring 9 and the retaining ring 10 are made of highly elastic material.

[0019] To elaborate further, the interior of placement platform 5 is hollow.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model 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 utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as cylinder head 1, housing 2, mounting platform 3, bolt hole 4, placement platform 5, retaining ring 6, bolt groove 7, mounting groove 8, positioning ring 9, retaining ring 10, placement bracket 11, positioning groove 12, intake pipe 13, and exhaust pipe 14, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A lightweight air compressor cylinder head, characterized in that, The cylinder head (1) includes a cylinder head (1) and a housing (2) disposed at the bottom of the cylinder head (1). The bottom of the cylinder head (1) has a mounting platform (3). Several bolt holes (4) are circumferentially opened on the mounting platform (3). A placement platform (5) corresponding to the mounting platform (3) is disposed inside the housing (2). The placement platform (5) is connected to the housing (2) by a fixing ring (6). The placement platform (5) has bolt grooves (7) corresponding to the bolt holes (4). The cylinder head (1) is connected to the placement platform (5) by bolts. The edge of the mounting platform (3) has a positioning and installation area for the placement platform (5). The mounting groove (8) is arc-shaped. A positioning ring (9) is provided on the groove wall of the mounting groove (8) along its circumference. A retaining ring (10) for locking is provided on the positioning ring (9). A placement frame (11) that fits the mounting groove (8) is provided on the top of the placement platform (5). A positioning groove (12) for installing the positioning ring (9) is provided on the placement frame (11). A retaining groove for installing the retaining ring (10) is provided in the positioning groove (12). The housing (2) is radially positioned by the cooperation of the positioning ring (9) and the positioning groove (12).

2. A lightweight air compressor cylinder head according to claim 1, characterized in that, The shell (2), the fixing ring (6) and the placement platform (5) are integrally formed by welding.

3. A lightweight air compressor cylinder head according to claim 1, characterized in that, The cylinder head (1) has symmetrical intake pipes (13) and exhaust pipes (14).

4. A lightweight air compressor cylinder head according to claim 1, characterized in that, The positioning ring (9) and retaining ring (10) are made of highly elastic material.

5. A lightweight air compressor cylinder head according to claim 1, characterized in that, The placement platform (5) is hollow inside.