Connecting and unlocking structure for plug-in type quick connector

Abstract

The utility model relates to a connecting device capable of being quickly disassembled and assembled, in particular to a connecting and unlocking structure for a plug-in type quick connector. A misoperation structure for a plug-in type quick connector comprises a shell, a movable pin, a locking pin spring, a steel ball a and a locking pin, a switch is arranged on the shell, a tooth body is arranged on the inner side of the switch and connected with the tooth portion of the movable pin, a positioning rod is arranged on the front portion of the movable pin, a limiting ring b is arranged in the middle of the positioning rod and makes contact with the steel ball a, and the steel ball a is arranged in a through hole b. A locking pin spring and a locking pin are arranged on the other side of the through hole b, the locking pin spring is arranged in the movable groove b and makes contact with the locking pin, a limiting ring c is arranged in the middle of the locking pin, and a limiting table body is arranged at the rear end of the locking pin. The utility model has the beneficial effects that the two unit female joints are mutually buckled and locked, the locking pin is jacked into the shell, then the switch can be independently operated, the flow channel can be independently opened, a safety structure is provided, the misoperation is avoided, and the operation is very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of connecting devices of quick disassembly and assembly, especially connecting unlocking structure for plug-in quick connector. BACKGROUND

[0002] Quick connector includes hydraulic quick connector and various fluid quick connector, it is a kind of quick connection or disconnects pipeline, realizes the connecting device of quick disassembly and assembly.Quick connector has bidirectional check function pipeline disconnects no leakage, so it is widely used in petroleum, metallurgy, water and electricity, engineering machinery, ship, electromechanical equipment and other fields.Quick connector connecting structure is the most important part of quick connector, its connection mode and structure directly determine the convenience, reliability and product quality of quick connector.Quick connector has female connector and male connector two components, existing structure insertion is flow channel opening, without safety structure, and can affect the use effect of quick connector. SUMMARY

[0003] In order to solve the technical problem that the above-mentioned safety structure is not provided, the utility model provides connecting unlocking structure for plug-in quick connector.

[0004] The technical scheme of the utility model is as follows:

[0005] The plug-in quick connector misoperation structure includes shell, moving pin, locking pin spring, steel ball a and locking pin, the shell is equipped with switch, the inner side of switch is equipped with tooth body, tooth body is connected with the tooth part of moving pin, the front part of moving pin is positioning rod, the middle of positioning rod is equipped with limit ring b, limit ring b is in contact with steel ball a, steel ball a is arranged in through hole b, the other side of through hole b is locking pin spring and locking pin, locking pin spring is arranged in movable groove b, locking pin spring is in contact with locking pin, the middle of locking pin is equipped with limit ring c, the rear end of locking pin is equipped with limit platform.

[0006] The outer wall of the front part of shell is equipped with dustproof ring, the surface is equipped with shell sealing ring, shell sealing ring is located in the inner side of buckle, one side of buckle is equipped with insertion slot, one side of insertion slot is equipped with buckle seat, the middle of shell is equipped with ring body.

[0007] The outer wall of the shell opposite to the tooth body is equipped with arc-shaped notch.

[0008] The utility model discloses a technical scheme, novel structure, ingenious and simple design, two unit female connectors are buckled and locked, locking pin is pushed into the shell, then switch can be operated alone, flow channel can be opened independently, there is safety structure, and misoperation does not occur, operation is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structure schematic diagram of flow channel opening.

[0010] Figure 2 、 3 is a structural schematic view of a unit female connector;

[0011] Figure 4 is a structural schematic view of a safety lock structure;

[0012] Figure 5 is a structural schematic view of the utility model;

[0013] Figure 6 is a structural schematic view of a docking initial state;

[0014] Figure 7 is a structural schematic view of a docking interlocking state;

[0015] Figure 8 、 9 is a structural schematic view of the utility model shell. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings and examples. EXAMPLE

[0017] As Figure 2 、 3 , 5, 8, 9, the connecting unlocking structure of plug-in quick connector, including shell 1, moving pin 10, locking pin spring 11, steel ball a 22 and locking pin 9, the shell 1 is equipped with switch, the inside of switch 3 is equipped with tooth body, tooth body is connected with the tooth part of moving pin 10, the front part of moving pin 10 is positioning rod, the middle of positioning rod is equipped with limit ring b, limit ring b is in contact with steel ball a 22, steel ball a 22 is equipped in through hole b, the other side of through hole b is locking pin spring 11 and locking pin 9, locking pin spring 11 is equipped in movable slot b, locking pin spring 11 is in contact with locking pin 9, locking pin 9 is equipped with limit ring c in the middle, locking pin 9 rear end is equipped with limit platform body.

[0018] The outer wall of the front part of shell 1 is equipped with dustproof ring 16, and the surface is equipped with shell sealing ring 15, the shell sealing ring 15 is located in the inside of buckle, one side of buckle is equipped with insertion slot 25, one side of insertion slot 25 is equipped with buckle seat, and the middle of shell 1 is equipped with ring body.

[0019] The outer wall of the tooth body opposite shell 1 is equipped with arc-shaped notch.

[0020] As Figure 1 、 4, 6, 7, when in use, the plug-in quick connector comprises a unit female connector, the number of the unit female connector is two, the unit female connector comprises a shell 1 and a connector body 2, the outer wall of the front part of the connector body 2 is sleeved with the shell 1, the side wall of the shell 1 is provided with a mounting port, the mounting port is provided with a switch 3, the lower part of the switch 3 is inserted into the mounting port and is connected with a valve core 6, a fixing bolt 7 is inserted into the switch 3 and the valve core 6 and is fixed, the switch 3 and the shell 1 are provided with a safety lock structure and a connection unlocking structure, the front end surface of the shell 1 is provided with a buckle, the outer wall of the front part of the connector body 2 is provided with a recess groove a and a recess groove b, the recess groove a is provided with a connector O-ring a, the recess groove b is provided with a connector O-ring b 19, the shell 1 and the connector body 2 are provided with a connecting steel pin 8, the outer wall of the lower part of the switch 3 is provided with a recess groove c, the recess groove c is provided with a switch O-ring 20, the switch O-ring 20 is in contact with the mounting port, the outer wall of the connection part of the switch 3 and the valve core 6 is provided with a valve core upper pad 17, the outer wall of the valve core 6 and the inner wall of the shell 1 are provided with a valve core sealing ring 14, the bottom center of the valve core 6 is provided with a positioning pin 5, the positioning pin 5 is sleeved on a valve core lower pad 18, the positioning pin 5 is inserted into the inner wall of the shell 1, the bottom center of the positioning pin 5 is recessed, the recessed part is provided with a positioning pin spring 13, the positioning pin spring 13 is arranged in a fixing groove, the upper part of the rod body of the fixing bolt 7 is recessed, the recessed part is provided with a fixing bolt O-ring 21, the safety lock structure comprises a switch spring 12, a steel ball b 23 and a switch pin 4, the switch 3 is transversely provided with a movable groove a, the movable groove a is provided with the switch spring 12 and the switch pin 4, the switch spring 12 is inserted into the clamping groove of the switch pin 4, the middle of the switch pin 4 is provided with a limiting ring a, the lower part of the switch pin 4 is provided with a through hole a, the through hole a is provided with the steel ball b 23, the steel ball b 23 is in contact with a movable groove 24, the both ends of the movable groove are provided with recesses, the valve core 6 is transversely through in the middle, and a flow channel port is left, the outer wall of the front part of the shell 1 is provided with a dustproof ring 16, the surface is provided with a shell sealing ring 15, the shell sealing ring 15 is located on the inner side of the buckle, one side of the buckle is provided with an insertion groove 25, one side of the insertion groove 25 is provided with a buckle seat, the middle of the shell 1 is provided with a ring body, the two unit female connectors are buckled and locked, the locking pin is pushed into the shell, then the switch can be operated alone, and the flow channel can be opened independently.

[0021] It should be understood that the above description is only a preferred embodiment of the present application, and is not intended to limit the technical scheme of the present application. For those skilled in the art, according to the above description, the technical scheme can be increased, replaced, transformed or improved within the spirit and principle of the present application, and all these increased, replaced, transformed or improved technical schemes should belong to the protection scope of the appended claims of the present application.

Claims

1. A connection unlocking structure for a plug-in quick connector, comprising a housing (1), a movable pin (10), a locking pin spring (11), a steel ball a (22) and a locking pin (9), characterized in that: The housing (1) is provided with a switch, the inner side of the switch (3) is provided with a tooth body, the tooth body is connected to the tooth portion of the movable pin (10), the front part of the movable pin (10) is a positioning rod, the middle part of the positioning rod is provided with a limiting ring b, the limiting ring b contacts the steel ball a (22), the steel ball a (22) is provided in the through hole b, the other side of the through hole b is a locking pin spring (11) and a locking pin (9), the locking pin spring (11) is provided in the movable groove b, the locking pin spring (11) contacts the locking pin (9), the middle part of the locking pin (9) is provided with a limiting ring c, and the rear end of the locking pin (9) is provided with a limiting platform body.

2. The connection unlocking structure for a plug-in quick connector according to claim 1, characterized in that: The outer wall of the front portion of the housing (1) is provided with a dustproof ring (16), and the surface is provided with a housing sealing ring (15). The housing sealing ring (15) is located inside the buckle. An insertion groove (25) is provided on one side of the buckle. A buckle seat is provided on one side of the insertion groove (25). A ring body is provided in the middle of the housing (1).

3. The connection unlocking structure for a plug-in quick connector according to claim 1, characterized in that: An arc-shaped notch is provided on the outer wall of the housing (1) opposite to the tooth body.

Images