A high-pressure gas-filled sealing device
The combination design of the sealing block and O-ring solves the problems of inconvenient replacement of the air inflator and thread damage, and improves testing efficiency and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIANGU AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, the air inflator is inconvenient to replace and can easily damage the product threads, affecting testing efficiency and quality.
The design employs a sealing block, which features an air vent and a sealing ring. The sealing ring is O-shaped and seals against the surface of the test piece through a sealing groove, preventing disassembly of the connector and damage to the threads.
It achieves reliable sealing, reduces the number of steps required to replace sealing plugs, improves testing efficiency, protects product threads, and reduces downtime maintenance costs.
Smart Images

Figure CN224579955U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of inflation testing devices, specifically relating to a high-pressure inflation sealing device. Background Technology
[0002] In the field of online testing of ABS / ESC assemblies, it is necessary to test the inflation pressure and leakage of the product's four channels. Current technology typically uses four independent inflation connectors integrated into a single unit, sealed with T-shaped rubber plugs inserted into the product's threaded holes. However, this structure has drawbacks in practical applications: when replacing the sealing plugs, the plugs are easily deformed after use, requiring disassembly of the inflation connectors; furthermore, during testing, the insertion of the inflation connectors into the product's threaded holes can cause thread damage, affecting product quality and testing efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a high-pressure gas-filled sealing device to solve the above-mentioned problems.
[0004] Therefore, this utility model provides a high-pressure gas-filled sealing device, comprising:
[0005] A sealing block is provided with a venting port, and a sealing ring is provided around the venting port to seal the venting port.
[0006] Preferably, the sealing block is provided with a sealing groove, which is used to accommodate the sealing ring.
[0007] Preferably, the vent is located within the sealing groove.
[0008] Preferably, the length of the vent is the same as the depth of the sealing groove.
[0009] Preferably, the top surface of the sealing block is provided with an installation groove.
[0010] Preferably, the mounting groove is connected to the venting interface.
[0011] Preferably, the sealing block is provided with multiple ventilation ports.
[0012] Preferably, the plurality of ventilation ports are evenly distributed along the extension direction of the sealing block.
[0013] Preferably, the mounting groove corresponds one-to-one with the ventilation port.
[0014] Preferably, the sealing ring is an O-ring.
[0015] Beneficial effects:
[0016] This invention provides a high-pressure air-filled sealing device, which improves the air-filling connector into an integrated air-filling block. This eliminates the need for separate disassembly of the connector when replacing the seal. The T-shaped rubber sealing plug is replaced with an O-ring seal. The O-ring seal has a large sealing area and is less prone to deformation, ensuring reliable sealing for each product during testing. The sealing ring contacts the product's air inlet plane rather than extending into the product, preventing damage to the product's threads. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the structure of a high-pressure gas-filled sealing device provided by this utility model.
[0019] Figure 2 A schematic diagram of the sealing block of a high-pressure gas-filled sealing device provided by this utility model.
[0020] Figure 3 A cross-sectional view of a high-pressure gas-filled sealing device provided by this utility model.
[0021] Figure 4 This is a schematic diagram of a sealing device in related technologies.
[0022] In the diagram, 1-blocking block, 2-venting interface, 3-sealing ring, 4-sealing groove, 5-installation groove, 6-T-type rubber sealing plug, and 7-inflation connector. Detailed Implementation
[0023] The following detailed description of preferred embodiments of the present invention, along with the included examples, will make the content of the present invention more readily understood. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.
[0024] Example 1:
[0025] Sealing devices in the prior art, such as Figure 4 As shown, the product is sealed by integrating four independent air inflators 7 and using T-shaped rubber sealing plugs 6 inserted into the product's threaded holes. When replacing the T-shaped rubber sealing plugs 6, the air inflators 7 need to be disassembled because the T-shaped rubber sealing plugs 6 are easily deformed after use. During the test, the air inflators 7 need to be inserted into the product's threaded holes, which may cause thread damage.
[0026] Provided such as Figure 1-3 The high-pressure gas-filled sealing device shown includes:
[0027] The sealing block 1 has a vent 2 and a sealing ring 3 around it. The sealing ring 3 is used to seal the vent 2.
[0028] The sealing block 1 has a sealing groove 4 to accommodate the sealing ring 3. The vent 2 is located within the sealing groove 4. The length of the vent 2 is the same as the depth of the sealing groove 4. This matching design ensures that when the sealing block 1 is in contact with the surface of the workpiece, the O-ring 3, after being compressed, can evenly fill the gap between the sealing groove 4 and the contact surface of the workpiece. Simultaneously, the end face of the vent 2 is flush with the surface of the workpiece, avoiding localized stress concentration due to an excessively long vent or sealing failure due to an excessively short vent.
[0029] The top surface of the sealing block 1 is provided with a mounting groove 5. The mounting groove 5 communicates with the vent interface 2. The mounting groove 5 is used to provide positioning and installation space for external gas connection connectors, such as quick-connect gas hose connectors, to ensure gas continuity.
[0030] The sealing block 1 is provided with multiple vent ports 2. The multiple vent ports 2 are evenly distributed along the extension direction of the sealing block 1. The mounting grooves 5 correspond one-to-one with the vent ports 2. The multiple vent ports 2 can simultaneously connect to the external air connectors in the corresponding mounting grooves 5, and the different vent ports 2 are independent of each other.
[0031] The sealing ring 3 is an O-ring. Made of elastic rubber, the O-ring undergoes elastic deformation when the sealing block 1 is pressed against the test piece, changing its cross-section from circular to elliptical. Through contact pressure, it completely fills the microscopic gaps between the sealing groove 4 and the surface of the test piece, creating a "surface seal." Compared to the line contact seal of traditional T-type rubber plugs, the annular sealing surface of the O-ring more reliably prevents gas leakage and exhibits excellent resistance to repeated compression, meeting the high-frequency docking requirements during testing.
[0032] The combination design of O-ring and sealing groove 4, with the size matching of air inlet 2 and groove, improves the sealing performance compared to the traditional T-type rubber plug. It can connect multiple test interfaces at one time, saving time compared to the step-by-step installation of independent air inlet connectors. The O-ring can be quickly installed and removed through sealing groove 4 without removing the entire sealing block 1, which greatly reduces downtime maintenance costs.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A high pressure gas-filled seal, characterized in that, include: A sealing block is provided with a venting port, and a sealing ring is provided around the venting port to seal the venting port.
2. A high pressure gas seal assembly according to claim 1, wherein, The sealing block is provided with a sealing groove, which is used to accommodate the sealing ring.
3. A high pressure gas seal assembly according to claim 2, wherein, The vent is located within the sealing groove.
4. A high pressure gas seal assembly according to claim 3, wherein, The length of the vent is the same as the depth of the sealing groove.
5. A high pressure gas seal assembly according to claim 1, wherein, The top surface of the sealing block is provided with an installation groove.
6. A high pressure gas seal assembly according to claim 5, wherein, The mounting groove is connected to the ventilation port.
7. A high pressure gas seal assembly according to claim 6, wherein, The sealing block is equipped with multiple ventilation ports.
8. A high pressure gas seal assembly according to claim 7, wherein, The plurality of ventilation ports are evenly distributed along the extension direction of the sealing block.
9. A high pressure gas seal assembly according to claim 8, wherein, The mounting grooves correspond one-to-one with the ventilation ports.
10. A high-pressure gas-filled sealing device according to claim 1, characterized in that, The sealing ring is an O-ring.