Non-detachable female joint

Abstract

A non-detachable female connector comprises a shell, a locking part, an outer check ring, an outer O-shaped ring, an inner check ring and an inner O-shaped ring, the shell is provided with a connecting handle used for being connected with a pipeline, side windows are formed in the two sides of the end, back on to the connecting handle, of the shell, a connecting beam is arranged on the side, back on to the connecting handle, of each side window, and a circular opening is formed in the end, back on to the connecting handle, of the shell. The locking part comprises an outer side circular ring, an inner side circular ring, a plurality of connecting columns connected with the inner side circular ring and the outer side circular ring and a plurality of inner elastic buckles used for locking the female connector, the inner elastic buckles are used for locking the male connector, and the inner side circular ring is used for being matched with the outer check ring to limit the moving range of the outer limiting clamping block; the inner elastic buckles corresponding to the side windows are provided with damage gaps which are contained in the side windows to be matched with the connecting beams so as to prevent the locking parts from being separated from the shell, and the two sides of the outer limiting clamping blocks, the adjacent connecting columns and the side walls of the side windows are provided with the damage gaps which allow diagonal pliers to be inserted and cut off the ends of the connecting beams.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to a non-detachable female connector. Background Art

[0002] like Figure 1 , Chinese utility model patent CN214305799U discloses a safety ring open type non-detachable quick plug connector assembly, comprising a connector body, a safety ring and a female end sealing ring sleeved inside the female end of the connector body; a limited opening is axially provided on the side wall of the safety ring, and a limiting protrusion corresponding to the limited opening is provided on the inner wall of the female end of the connector body; a limiting boss is provided on the inner ring of the female end port of the connector body, and an outer limiting block is provided on the outer ring of the safety ring corresponding to the limiting boss; the safety ring also has an inner limiting block protruding inwardly to engage and limit the radially provided flange of the external male end inserted into the female end of the connector body, and the inner limiting block and the outer limiting block are axially provided on the same side. When the external male end needs to be disassembled under specific circumstances, it is only necessary to use a tool to forcibly break the side wall of the female end at that location to expose the safety ring, and then the safety ring can be quickly withdrawn from the external male end by prying the safety ring outward at the limited opening of the safety ring.

[0003] like Figure 2 The female connector in a quick connector is also called a female connector. A. Raymond's female connector is a mainstream product (standard SAE J2044-2009), with annual sales exceeding 100 million units. It includes a housing, button, outer retaining ring, outer O-ring, inner retaining ring, and inner O-ring. For example, the locking component for locking pipe connections, disclosed in Chinese invention patent publication number CN104110546A, features a side window on the housing to accommodate the button. The production of mainstream products is highly automated and has achieved high market acceptance.

[0004] The diameter of the housing's connector (male end component, used to connect pipes) ranges from 4.78mm to 22.23mm. The same button can correspond to a variety of housing specifications. There are also various options, such as whether it is electrically heated, the angle (such as 30-degree, 45-degree, 60-degree, 90-degree, and 180-degree connectors), the number of connectors (such as tee-shaped and cross-shaped connectors), the type of pipe connected to the connector (such as nylon tube, rubber tube), the length of the connector, the diameter of the connector, whether the connector has a rubber ring, and countless types of female connector shells. There are hundreds of mainstream female connectors.

[0005] In the prior art, non-detachable joints require multiple molds to accommodate different angles, different material pipelines, different sealing requirements, and different diameter housings. Summary of the Invention

[0006] The present invention aims to provide a non-detachable female connector which cannot be opened without destruction and adopts the shell of the existing mainstream detachable connector.

[0007] The outer ring is used to lock the outer ring of the connector and the outer ring is used to lock the connector.

[0008] In one embodiment of the present invention, the outer circular ring cooperates with the circular opening to prevent the outer limiting block from detaching from the side window.

[0009] In one embodiment of the present invention, the inner elastic buckle extends from the outer ring toward the inner ring toward the center of the housing.

[0010] In one embodiment of the present invention, the outer limiting block extends from the middle portion of the inner elastic buckle back toward the center of the housing.

[0011] In one embodiment of the present invention, the inner elastic buckle has a section of equal cross-section located between the outer limiting block and the outer circular ring.

[0012] In one embodiment of the present invention, the inner surface of the inner elastic buckle facing the center of the shell and the outer surface facing away from the center of the shell extend from the outer limiting block toward the connecting handle toward the center of the shell.

[0013] In one embodiment of the present invention, the width of the inner elastic buckle gradually decreases from the outer limit buckle toward the handle.

[0014] In one embodiment of the present invention, the inner ring is provided with an installation guide inclined surface.

[0015] In one embodiment of the present invention, the male connector has an annular ridge, and the inner elastic buckle has a first contact surface that fits the outer circumference of the male connector and a second contact surface for locking the male connector against the annular ridge.

[0016] In one embodiment of the present invention, the number of the connecting pillars is four.

[0017] In one embodiment of the present invention, the locking portion is made of nylon.

[0018] In the present invention, the locking portion can be adapted to the shell of mainstream products, and during production, the existing mold can be selected according to user requirements to produce a shell with the required diameter, angle, and handle form, thereby completing the production.

[0019] It should be noted that the locking portion and the outer retaining ring are not integrally formed in this application because the outer retaining ring is already assembled automatically in mainstream products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a structural schematic diagram of an existing safety ring open type non-detachable quick plug connector assembly.

[0021] Figure 2 Shown is a schematic structural diagram of an existing locking component for locking pipe connections.

[0022] Figure 3 FIG2 is a schematic structural diagram of a non-detachable female connector according to a first embodiment of the present invention.

[0023] Figure 4 Shown Figure 3 Exploded view of a non-detachable female connector.

[0024] Figure 5 Shown Figure 2 Schematic cross-sectional view of a non-detachable female connector.

[0025] Figure 6 Shown Figure 2 A schematic cross-sectional view of a non-detachable female connector from another direction.

[0026] Figure 7 Shown Figure 2 Schematic diagram of the structure of the locking part of the detachable female connector. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined utility model purpose, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0028] See Figure 3-6The first embodiment of the present invention is a non-detachable female connector for connecting a male connector 100, comprising a housing 1, a locking portion 2, an outer retaining ring 3, an outer O-ring 4, an inner retaining ring 5, and an inner O-ring 6. The housing 1 is provided with a handle 11 for connecting a pipeline. Side windows 10 are opened on both sides of the end of the housing 1 facing away from the handle 11. A connecting beam 12 is provided on the side of the side window 10 facing away from the handle 11. A circular opening is provided on the end of the housing 1 facing away from the handle 11. The locking portion 2 comprises an outer ring 21, an inner ring 22, and a plurality of connecting members 22 and 23. The connecting column 23 of the ring 21, multiple internal elastic clips 24 for locking the female connector, the internal elastic clips 24 are used to lock the male connector 100, the inner circular ring 22 is used to cooperate with the outer retaining ring 3 to limit the movement range of the outer limit block 25, and the inner elastic clip 24 corresponding to the position of the side window 10 is provided with a connecting beam 12 accommodated in the side window 10 to prevent the locking part 2 from detaching from the outer shell 1, and there is a breaking gap 20 between the two sides of the outer limit block 25 and the adjacent connecting columns 23 and the side walls of the side window 10 to allow diagonal pliers to be inserted and cut off the end of the connecting beam 25.

[0029] The outer ring 21 cooperates with the circular opening to prevent the outer limit block 25 from detaching from the side window 10. The inner elastic buckle 24 extends from the outer ring 21 toward the inner ring 22 toward the center of the housing 1. The outer limit block 25 extends from the middle of the inner elastic buckle 24 away from the center of the housing 1.

[0030] The inner elastic buckle 24 has a uniform cross-section section 241 located between the outer limit block 25 and the outer ring 21. The inner surface of the inner elastic buckle 24 facing the center of the housing 1 and the outer surface facing away from the center of the housing 1 extend from the outer limit block 25 toward the handle 11 toward the center of the housing 1.

[0031] The width of the inner elastic buckle 24 gradually decreases from the outer limit buckle toward the handle 11 .

[0032] The inner ring 22 is provided with an installation guide bevel 220. The male connector 100 has an annular ridge 100a. The inner elastic buckle 24 has a first contact surface 24a that mates with the outer circumference of the male connector 100 and a second contact surface 24b that locks the male connector 100 against the annular ridge 100a. There are four connecting posts 23. The locking portion 2 is made of nylon.

[0033] In the present invention, the locking portion 2 can be adapted to the shell of mainstream products. During production, the existing mold can be selected according to user requirements to produce the shell 1 with the required diameter, angle, and handle form, and the production can be completed.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A non-detachable female connector for connecting a male connector, comprising a housing, a locking portion, an outer retaining ring, an outer O-ring, an inner retaining ring, and an inner O-ring; the housing is provided with a connecting handle for connecting a pipeline; side windows are provided on both sides of the end of the housing facing away from the connecting handle; a connecting beam is provided on the side of the side window facing away from the connecting handle; a circular opening is provided on the end of the housing facing away from the connecting handle; the locking portion comprises an outer circular ring, an inner circular ring, a plurality of connecting columns connecting the inner circular ring and the outer circular ring, and a plurality of inner elastic buckles for locking the female connector; the inner elastic buckles are used to lock the male connector, characterized in that: The inner circular ring is used to cooperate with the outer retaining ring to limit the moving range of the outer limit block. The inner elastic buckle corresponding to the position of the side window is provided to be accommodated in the side window and cooperate with the connecting beam to prevent the locking part from detaching from the outer shell. There is a destructive gap between the two sides of the outer limit block and the adjacent connecting columns and the side walls of the side window to allow diagonal pliers to be inserted and cut off the end of the connecting beam.

2. The non-detachable female connector according to claim 1, characterized in that: The outer circular ring cooperates with the circular opening to prevent the outer limit block from separating from the side window.

3. The non-detachable female connector according to claim 2, characterized in that: The inner elastic buckle extends from the outer ring toward the inner ring toward the center of the shell.

4. The non-detachable female connector according to claim 3, characterized in that: The outer limit block extends from the middle portion of the inner elastic buckle toward the center of the housing.

5. The non-detachable female connector according to any one of claims 1 to 4, characterized in that: The inner elastic buckle has a constant cross-section segment located between the outer limiting block and the outer circular ring.

6. The non-detachable female connector according to claim 5, characterized in that: The inner surface of the inner elastic buckle facing the center of the shell and the outer surface facing away from the center of the shell extend from the outer limiting block toward the connecting handle toward the center of the shell.

7. The non-detachable female connector according to claim 6, characterized in that: The width of the inner elastic buckle gradually decreases from the outer limit buckle toward the handle.

8. The non-detachable female connector according to claim 6, characterized in that: The inner circular ring is provided with an installation guiding inclined surface.

9. The non-detachable female connector according to claim 1, characterized in that: The male connector has an annular ridge, and the inner elastic buckle has a first contact surface that fits the outer peripheral surface of the male connector and a second contact surface for locking the male connector against the annular ridge.

10. The non-detachable female connector according to claim 1, characterized in that: The number of the connecting columns is four.

11. The non-detachable female connector according to claim 1, characterized in that: The locking portion is made of nylon.

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