An ultra-high pressure quick connector structure

Abstract

The utility model discloses a kind of ultra-high pressure quick coupler structure. Mainly by female connector and male connector sealing connection pairing composition, female connector inner cavity bottom and male connector end portion are connected by end sealing gasket, female connector inner cavity inboard and male connector outside are contacted by multiple O rings;Female connector and male connector sealing pairing connection assembly after outside have clamping nut package connection, and multiple locking strip lock catch grooves are opened on the outer circumferential surface of clamping nut, and the locking strip lock catch groove of clamping nut is connected by locking strip and female connector outboard. The utility model is adopted multiple-stage sealing technology, and the sealing problem of high pressure, ultra-high pressure is decomposed to multiple low pressure step-by-step sealing problem, so that the complicated ultra-high pressure sealing is simplified, and it is conducive to the design of quick coupler structure;Ultra-high pressure quick coupler structure with simple structure, reliable sealing, structure self-locking, economic, reliable.

Description

Technical Field

[0001] This utility model relates to a quick-connect structure for high-pressure and ultra-high-pressure pipelines, and in particular to a quick-connect structure for high-pressure and ultra-high-pressure modular assembly of high-pressure hydrogen. Background Technology

[0002] Currently, hydrogen energy development is becoming increasingly popular and its applications are becoming more widespread globally. However, hydrogen storage and transportation are extremely difficult. Currently, the vast majority of hydrogen storage and transportation relies on high-pressure systems, which involve numerous high-pressure pipeline connections and disassemblies. The filling and discharging of onboard high-pressure hydrogen storage cylinders requires frequent disassembly and reassembly. Existing quick-fill connectors are complex and costly, creating a significant economic barrier to the widespread adoption of hydrogen fuel cell vehicles. Utility Model Content

[0003] To address the problem of high-pressure pipeline quick couplings in the background art, this utility model provides an ultra-high-pressure quick coupling structure, which is a high-pressure quick coupling solution with simple structure and high reliability, providing a new option for the installation and disassembly of high-pressure hydrogen storage pipelines.

[0004] The technical solution adopted in this utility model is: This utility model mainly consists of a female connector and a male connector that are sealed and paired. The bottom of the inner cavity of the female connector is connected to the end of the male connector through an end sealing gasket. The inner wall of the inner cavity of the female connector is in contact with the outer side of the male connector through multiple O-rings. After the female connector and the male connector are sealed and paired and assembled, the outer side is covered by a pressure nut. The outer circumferential surface of the pressure nut has multiple locking grooves. The locking grooves of the pressure nut are connected to the outer wall of the female connector through the locking grooves.

[0005] The upper end of the clamping nut is threaded, and the upper thread is connected to the lower end of the female connector by thread. At the same time, the lower end of the clamping nut is engaged on the shoulder of the male connector.

[0006] Each locking groove of the clamping nut is provided with a locking strip that connects to its respective locking strip.

[0007] One end of the locking strip is hinged and fixed to the outer circumferential surface of the female connector, and the other end of the locking strip is snapped into one of the locking strip locking grooves. At the same time, the middle part of the locking strip is connected to the outer circumferential surface of the female connector on the upper side of the pressure nut by a locking strip tension spring.

[0008] The sealing of the ultra-high pressure quick connector structure is formed by the sealing connection between the female connector and the male connector. Specifically, it consists of a first-stage seal between the bottom of the inner cavity of the female connector and the end of the male connector, and a multi-stage seal composed of multiple O-rings between the inner wall of the inner cavity of the female connector and the outer side of the male connector.

[0009] The beneficial effects of this utility model are: 1. This technical solution adopts multi-stage sealing technology, which decomposes the sealing problem of high pressure and ultra-high pressure into multiple medium and low pressure stage sealing problems, simplifying the complex ultra-high pressure sealing and facilitating the design of quick connector structure.

[0010] 2. Unlike existing ultra-high voltage quick couplings which are complex and expensive, this structure focuses on a simple, reliable, and self-locking ultra-high voltage quick coupling structure, achieving the goals of economy and reliability. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of an ultra-high voltage quick connector structure.

[0012] Figure 2 This is a top view of the clamping screw sleeve structure.

[0013] Figure 3 These are the front and top views of the locking strip.

[0014] In the diagram: 1. Female connector, 2. End sealing gasket, 3. O-ring, 4. Locking strip junction, 5. Locking strip tension spring, 6. Locking strip, 7. O-ring shoulder, 8. Pressing screw thread connection, 9. Pressing screw sleeve, 10. Male connector, 11. Locking strip locking groove, 12. Pressing screw thread. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 As shown, it mainly consists of a female connector 1 and a male connector 10 sealed and paired. The bottom of the inner cavity of the female connector 1 is connected to the end of the male connector 10 through an end sealing gasket 2. The inner cylindrical sidewall of the inner cavity of the female connector 1 is in contact with the outer cylindrical sidewall of the male connector 10 through multiple O-rings 3. After the female connector 1 and the male connector 10 are sealed and paired, a clamping nut 9 covers and connects them on the outside. Multiple locking grooves 11 are opened on the outer cylindrical circumference of the clamping nut 9. The locking grooves 11 of the clamping nut 9 are connected to the outer sidewall of the female connector 1 through a locking strip 6. The clamping nut 9 is locked in one of the locking grooves 11 by the locking strip 6, so that the clamping nut 9 is further pressed and connected between the female connector 1 and the male connector 10.

[0017] In specific implementation, the upper end of the clamping nut 9 is threaded, and the upper thread is connected to the lower end of the female connector 1 through the thread 8. At the same time, the lower end of the clamping nut 9 is engaged on the shoulder of the male connector 10. The shoulder of the male connector 10 is located on the lower side of the end of the female connector 1 after the female connector 1 and the male connector 10 are sealed and paired together.

[0018] Each locking groove 11 of the clamping nut 9 is provided with a locking strip 6 connected to it.

[0019] In practice, one end of the locking strip 6 is hinged and fixed to the cylindrical outer circumference of the female connector 1, and the other end of the locking strip 6 is snapped into one of the locking strip locking grooves 11. At the same time, the middle part of the locking strip 6 is connected to the outer cylindrical circumference of the female connector 1 on the upper side of the clamping nut 9 by a locking strip tensioning spring 5.

[0020] The sealing of the ultra-high pressure quick connector structure is formed by the sealing connection between the female connector 1 and the male connector 10. Specifically, it consists of a first-stage seal between the bottom of the inner cavity of the female connector 1 and the end of the male connector 10, and a multi-stage seal composed of multiple O-rings 3 between the cylindrical inner wall of the inner cavity of the female connector 1 and the cylindrical outer side of the male connector 10.

[0021] Figure 2 The clamping nut 9 is for the locking device. Figure 3 This is a structural diagram of the locking strip. Specifically, after the female connector 1 and male connector 10 are paired and connected to form a seal, the locking strip 6 is inserted into one of the locking strip locking grooves 11 on the outer cylindrical surface of the clamping nut 9. The locking strip 6 is then tightened by the locking strip tension spring 5 to achieve locking.

[0022] During the quick coupling installation, first place the end sealing gasket 2 at the bottom of the inner cavity of the female connector 1, install the corresponding O-rings 3 into the corresponding slots of the male connector 10, insert the male connector 10 concentrically into the female connector 1, tighten the clamping nut 9, and snap the locking strip 6 into one of the slots of the clamping nut 9 to complete the installation.

[0023] When assembling or disassembling the quick connector, first pull the locking strip 6, which is inserted into the groove of the clamping nut 9, out of the groove. Loosen the clamping nut 9 until it naturally disengages. Then, pull the male connector 10 out of the inner cavity of the female connector 1 to complete the assembly or disassembly.

[0024] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

[0025] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A high-voltage quick-connect structure, mainly composed of a female connector (1) and a male connector (10) sealed and paired, characterized in that: The bottom of the inner cavity of the female connector (1) is connected to the end of the male connector (10) through an end sealing gasket (2). The inner wall of the inner cavity of the female connector (1) is in contact with the outer side of the male connector (10) through multiple O-rings (3). After the female connector (1) and the male connector (10) are sealed and paired, the outer side is covered by a pressure nut (9). Multiple locking grooves (11) are opened on the outer circumference of the pressure nut (9). The locking grooves (11) of the pressure nut (9) are connected to the outer wall of the female connector (1) through the locking strip (6).

2. The ultra-high voltage quick connector structure according to claim 1, characterized in that: The upper end of the clamping nut (9) is provided with a thread, and the thread provided on the upper end of the clamping nut (9) is connected to the lower end of the female connector (1) by a thread (8). At the same time, the lower end of the clamping nut (9) is engaged on the shoulder of the male connector (10).

3. The ultra-high voltage quick connector structure according to claim 1, characterized in that: Each locking groove (11) of the clamping nut (9) is provided with a locking bar (6) connecting to its respective locking bar.

4. The ultra-high voltage quick connector structure according to claim 1, characterized in that: One end of the locking strip (6) is hinged and fixed to the outer circumferential surface of the female connector (1), and the other end of the locking strip (6) is snapped into one of the locking strip locking grooves (11). At the same time, the middle part of the locking strip (6) is tightened and connected to the outer circumferential surface of the female connector (1) on the upper side of the pressure nut (9) by a locking strip tension spring (5).

5. The ultra-high voltage quick connector structure according to claim 1, characterized in that: The sealing of the ultra-high pressure quick connector structure is formed by the sealing connection between the female connector (1) and the male connector (10). Specifically, it consists of a first-level seal between the bottom of the inner cavity of the female connector (1) and the end of the male connector (10) and a multi-level seal composed of multiple O-rings (3) between the inner wall of the inner cavity of the female connector (1) and the outer side of the male connector (10).

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