CN212080404U

CN212080404U - Non-detachable connects fast and inserts subassembly

Info

Publication number: CN212080404U
Application number: CN202020306432.6U
Authority: CN
Inventors: 顾强; 周金欢; 周鼎
Original assignee: Mifu Technology Zhejiang Co ltd
Current assignee: Mifu Technology Zhejiang Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-12-04
Anticipated expiration: 2030-03-12

Abstract

A non-detachable quick connector assembly includes a female connector, a male plug, and a locking safety ring. The female joint comprises a body and an inserting part. The inserting part comprises a first cylinder, a second cylinder, a third cylinder, an expansion connecting part and a propping step. The locking safety ring comprises a plug, a clamping cylinder and a clamping connector. The plug is inserted in the second cylinder. The clamping cylinder is inserted in the third cylinder body. One end of the clamping joint is connected with the expansion edge, and the other end of the clamping joint extends towards the central shaft of the third cylinder. The male plug includes an abutment ring. When the abutting ring abuts against the abutting ring, the end part of the male plug abuts against a step formed by the first barrel and the body, and the free end of the clamping barrel abuts against the abutting step. This quick-witted subassembly of inserting that connects of non-detachable is under the condition of not destroying public plug can not follow the hasp safety ring is taken out to reach the mesh of non-detachable.

Description

Non-detachable connects fast and inserts subassembly

Technical Field

The utility model relates to a connector technical field, especially a quick grafting subassembly of non-detachable.

Background

In the piping system of vehicles, there is always a need for a quick connector that is low in cost, highly reliable, and easy to assemble. This need is particularly evident in the case of connections between fluid transfer lines, such as fuel lines, brake lines or refrigeration lines.

However, the vehicle may vibrate due to jolts or the like during driving, easily resulting in a risk of separation between two connected lines, thereby causing leakage between fluid transfer lines such as fuel, brake system lines or refrigeration system lines.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can avoid taking place detached not detachable and connect the subassembly fast to solve above-mentioned problem.

A non-detachable quick connect-disconnect assembly includes a female connector, a male plug inserted into the female connector, and a snap-lock safety ring inserted between the female connector and the male connector. The female joint comprises a body and an inserting part arranged at one axial end of the body. The inserting part comprises a first cylinder connected with the body, a second cylinder connected with the first cylinder, a third cylinder connected with the second cylinder, an expansion connecting part arranged on the third cylinder, and an abutting step arranged on the expansion connecting part. The first cylinder, the second cylinder and the third cylinder are sequentially arranged along the axial direction of the first cylinder. The diameter of the second cylinder is larger than that of the first cylinder. The diameter of the third cylinder is larger than the diameters of the first cylinder and the second cylinder. The abutting step extends towards the center of the third cylinder. The lock catch safety ring comprises a plug inserted and fixed in the second barrel, a clamping barrel connected with the plug, and at least two clamping joints arranged in the clamping barrel at intervals. The plug is inserted in the second cylinder. The clamping cylinder is inserted in the third cylinder body. The expansion connecting part and the third cylinder are integrally formed and comprise a through hole, an expansion edge connected with the third cylinder along the radial direction of the third cylinder, and an expansion groove arranged at the joint of the expansion edge and the third cylinder. One end of the clamping joint is connected with the expansion edge, and the other end of the clamping joint extends towards the central shaft of the third cylinder. The clamping head extends from the inner wall of the clamping cylinder towards the central axis direction of the clamping cylinder in a free state, and an included angle formed between the extending direction and the central axis of the clamping cylinder is an acute angle. The male plug is inserted in the inserting part and the lock catch safety ring and comprises an abutting ring abutting against the clamping joint. When the abutting ring abuts against the abutting ring, the end part of the male plug abuts against a step formed by the first barrel and the body, and the free end of the clamping barrel abuts against the abutting step.

Further, the body and the insertion portion are integrally formed.

Further, the diameter of the first cylinder is equivalent to the diameter of the male plug.

Further, the outer diameter of the plug is equivalent to the inner diameter of the second cylinder, and the outer diameter of the clamping cylinder is equivalent to the inner diameter of the third cylinder.

Further, the inner diameter of the plug is equal to the outer diameter of the male plug.

Further, the bayonet head extends toward the plug.

Further, the abutting step is provided with a guiding-in part.

Further, the non-detachable quick connector assembly further comprises a sealing ring arranged between the free end of the plug and a step formed by the first cylinder and the second cylinder.

Further, the inserting portion further comprises an avoiding groove formed in a step formed by the first cylinder and the second cylinder, and the avoiding groove is used for containing the sealing ring.

Furthermore, the step that plug and joint section of thick bamboo formed supports and is pushed against on the step that is formed by second barrel and third barrel.

Compared with the prior art, the utility model provides a quick connecing of non-detachable inserts the subassembly through right the structural design of public plug and female plug, and be provided with between public plug and the female plug hasp safety ring, when the equipment, at first will public plug inserts in the female plug, then will hasp safety ring inserts in the third barrel of female plug, up to the free end of joint is supported and is in on the support ring of public plug, simultaneously the free end of a joint section of thick bamboo is supported and is in support on the step. Because the joint follows under free state the inner wall of joint section of thick bamboo towards the center pin direction of joint section of thick bamboo extends and extending direction with the contained angle between the center pin of joint section of thick bamboo has an acute angle, consequently when the hasp safety ring inserts, under the cooperation of extension connecting portion, the joint is at first by the joint ring supports to the lateral wall of first barrel, until the joint support to on the joint ring, public plug clamp is established at this moment between the free end of joint and the step that is formed by first barrel and body thereby fixed the positional relation between this public plug and the female joint. Meanwhile, the clamping connector is arranged on the inner side wall of the second barrel, so that the male plug cannot be pulled out of the lock catch safety ring when the male plug is installed or is not damaged, and the purpose of non-disassembly is achieved.

Drawings

Fig. 1 is an exploded schematic view of the non-detachable quick-connect-plug assembly provided by the present invention.

Fig. 2 is a sectional view of a third cylinder of the female connector of the non-detachable quick-connect module of fig. 1.

Fig. 3 is a cross-sectional view of the non-detachable quick connector assembly of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 3, it is a schematic structural diagram of the non-detachable quick plug assembly provided by the present invention. The non-detachable quick connector assembly includes a female connector 10, a male plug 20 inserted into the female connector 10, a locking safety ring 30 inserted between the female connector 10 and the male connector 20, and a packing 40 disposed between the locking safety ring 30 and the female connector 10. It is contemplated that the non-detachable quick connector assembly may further include other functional modules, such as a plug barb structure disposed at one end of the female connector 10 for connection with other pipes, or a bent structure disposed on the female connector, which is known in the art and will not be described in detail herein.

The female connector 10 includes a body 11, and an insertion portion 12 provided at one axial end of the body 11. The body 11 is used for the other pipe connections. The inserting portion 12 is disposed at one axial end of the body 11, and a central axis of the inserting portion is intersected with or overlapped with a central axis of the body 11, and the body 11 and the inserting portion 12 are integrally formed. The inserting portion 12 includes a first cylinder 121 connected to the body 11, a second cylinder 122 connected to the first cylinder 121, a third cylinder 123 connected to the second cylinder 122, an expansion connecting portion 124 disposed on the third cylinder 123, an abutting step 125 disposed on the expansion connecting portion 124, and an avoiding groove 126 disposed on the step formed by the first cylinder 121 and the second cylinder 122. One end of the first cylinder 121 is connected to the body 11, and the inner diameter of the first cylinder 121 is larger than the inner diameter of the body 11 to form a step between the first cylinder 121 and the body 11. The axial length of the first cylinder 121 can be set according to actual needs, such as the length of the male plug 20, and the inner diameter of the first cylinder 121 can be equivalent to the outer diameter of the male plug 20. The second cylinder 122 is disposed coaxially with the first cylinder 121 and at the other end with respect to the body 11. The second cylinder 122 has an inner diameter larger than that of the first cylinder 121, and a step is formed between the first and

second cylinders

121 and 122. The expansion joint 124 is integrally formed with the third cylinder 123, that is, the expansion joint 124 is disposed on the third cylinder 123. The expansion connection portion 124 is used for avoiding the abutting step 125 when the locking safety ring 30 is inserted between the male plug 20 and the female plug 10, so that when the locking safety ring 30 is inserted, the abutting step 125 is firstly abutted away in a direction away from the central axis of the third cylinder 123, and then the locking safety ring 30 is inserted. Meanwhile, after the locking safety ring 30 is inserted, the expansion connecting portion 124 is restored to its original shape, so that the free end of the clamping cylinder 32 of the locking safety ring 30 abuts against the abutting step 125. To this end, the expansion joint 124 includes a through hole 1241, an expansion edge 1242 connected to the third cylinder 123 in a radial direction of the third cylinder 123, and an expansion groove 1243 provided at a connection of the expansion edge 1242 and the third cylinder 123. Due to the existence of the expansion slot 1243, the joint of the expansion edge 1242 and the third cylinder 123 is thin, so that the strength of the joint of the expansion edge 1242 and the third cylinder 123 can be reduced, and therefore, when the locking safety ring 30 is inserted, the expansion connecting portion 124 can be deformed, so that the abutting step 125 can be abutted in a direction away from the central axis of the third cylinder 123. The abutting step 125 is disposed on the expansion edge 1242 so as to be abutted with the expansion edge 1242. In order to facilitate the insertion of the locking safety ring 30, a guiding portion 1251 is disposed on a side of the abutting step 125 facing the free end of the third cylinder 123, so as to facilitate the insertion of the locking safety ring 30. The number of the abutting steps 125 may be two, three, or four. In this embodiment, the number of the abutting steps 125 is two. The avoiding groove 124 is formed on a step formed by the first and

second cylinder bodies

121 and 122 at the joint. The function of the relief groove 124 will be described in detail below in conjunction with the seal ring 40.

The male plug 20 includes a barrel 21 and an abutment ring 22 disposed on the barrel 21. The cylinder 21 is inserted into the first cylinder 121 and the locking safety ring 30, and the diameter thereof can be set according to actual requirements. In this embodiment, the diameter of the male plug 20 is equivalent to the diameter of the first cylinder 121. The abutting ring 22 is disposed on the outer side wall of the cylinder 21, and the axial length and the outer diameter thereof can be set according to actual needs.

The locking safety ring 30 includes a plug 31 inserted and fixed in the second cylinder 122, a clamping cylinder 32 connected to the plug 31, and at least two clamping connectors 33 spaced apart from each other in the clamping cylinder 32. The plug 31 is inserted into the second cylinder 122. In this embodiment, the inner diameter of the plug 31 is equal to the outer diameter of the male plug 20 to fix the radial position of the male plug 20. The inner diameter of the clamping cylinder 32 is larger than that of the plug 31, so that a step is formed between the clamping cylinder 32 and the plug 31 to abut against the step formed by the second cylinder 122 and the third cylinder 123, so as to perform positioning. In order to provide the snap connector 33, at least two through holes are further provided on the snap cylinder 32. At least two of the card connectors 33 are respectively arranged in the two through holes to complete the arrangement of the card connectors 33. The bayonet joint 33 extends from the inner wall of the bayonet cylinder 32 toward the central axis of the bayonet cylinder 32 in a free state, and an angle formed between the extending direction and the central axis of the bayonet cylinder 32 is an acute angle. In the present embodiment, the snap connector 33 has two. In order to fit the male plug 20, the end of the bayonet head 33 and a side facing the center axis of the bayonet cylinder 32 may be curved. Meanwhile, the card connector 33 extends toward the plug 31 so that the male plug 20 can be smoothly inserted between the two card connectors 33.

The sealing ring 40 may be made of an elastic material, such as a silicone material. The sealing ring 40 is disposed between the locking safety ring 30 and the female connector 10, and specifically, the sealing ring 40 is disposed between the free end of the plug 31 and the step formed by the first cylinder 121 and the second cylinder 122. Specifically, when the plug 31 is inserted, a portion of the seal ring 40 will be received in the avoiding groove 126. It is contemplated that the diameter of the seal ring 40 is greater than the axial distance between the locking safety ring 30 and the female connector 10 to achieve a sealing effect. Meanwhile, due to the existence of the sealing ring 40, when the sealing ring is compressed by the plug 31, the restoring force of the sealing ring further fastens the butting of the clamping cylinder 32 and the butting step 125.

Compared with the prior art, the utility model provides a quick connecing of non-detachable inserts subassembly is through right the structural design of public plug 20 and female plug 10, and be provided with between public plug 20 and the female plug 10 hasp safety ring 30, when the equipment, at first will public plug 20 inserts in female plug 10, then will hasp safety ring 30 inserts in the third barrel 123 of female plug 10, until the free end of joint 33 supports and is in on the butt ring 22 of public plug 20, simultaneously the free end of joint section of thick bamboo 32 supports and is in support on the step 125. Since the snap ring 33 extends from the inner wall of the snap cylinder 32 toward the central axis of the snap cylinder 32 in a free state and the extending direction thereof forms an acute angle with the central axis of the snap cylinder 32, when the buckle safety ring 30 is inserted, the snap ring 22 first abuts against the side wall of the first cylinder 121 until the snap ring 33 abuts against the snap ring 22 by the engagement of the expansion connection part 124, and at this time, the male plug 33 is clamped between the free end of the snap ring 33 and the step formed by the first cylinder 121 and the body 11, thereby fixing the positional relationship between the male plug 20 and the female connector 10. Meanwhile, since the snap connector 33 is disposed on the inner sidewall of the second cylinder 122, it is not installed or the male plug 20 is not withdrawn from the locking safety ring 30 without being damaged, thereby achieving the non-detachable purpose.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a quick connect of non-detachable inserts subassembly which characterized in that: the non-detachable quick plug-in assembly comprises a female connector, a male plug inserted in the female connector and a lock catch safety ring inserted between the female connector and the male connector, wherein the female connector comprises a body and an inserting part arranged at one axial end of the body, the inserting part comprises a first barrel connected with the body, a second barrel connected with the first barrel, a third barrel connected with the second barrel, an expansion connecting part arranged on the third barrel and a propping step arranged on the expansion connecting part, the first barrel, the second barrel and the third barrel are sequentially arranged along the axial direction of the first barrel, the diameter of the second barrel is larger than that of the first barrel, and the diameter of the third barrel is larger than that of the first barrel and the second barrel, the abutting step extends towards the center of the third barrel, the lock catch safety ring comprises a plug which is inserted and fixed in the second barrel, a clamping barrel connected with the plug, and at least two clamping heads which are arranged in the clamping barrel at intervals, the plug is inserted in the second barrel, the clamping barrel is inserted in the third barrel, the expansion connecting part and the third barrel are integrally formed and comprise a through hole, an expansion edge which is connected with the third barrel along the radial direction of the third barrel, and an expansion groove which is arranged at the connecting part of the expansion edge and the third barrel, one end of the clamping head is connected with the expansion edge, the other end of the clamping head extends towards the central shaft of the third barrel, the clamping head extends towards the central shaft of the clamping barrel from the inner wall of the clamping barrel in a free state, and an included angle between the extending direction and the central shaft of the clamping barrel is an acute angle, the male plug is inserted in the inserting portion and the lock catch safety ring and comprises a butting ring which is butted on the clamping head, when the butting ring butts against the butting ring, the end portion of the male plug butts against a step formed by the first barrel body and the body, and the free end of the clamping barrel butts against the butting step.

2. The non-removable quick connect and disconnect assembly of claim 1, wherein: the body and the inserting part are integrally formed.

3. The non-removable quick connect and disconnect assembly of claim 1, wherein: the diameter of the first cylinder is equivalent to the diameter of the male plug.

4. The non-removable quick connect and disconnect assembly of claim 1, wherein: the outer diameter of the plug is equivalent to the inner diameter of the second cylinder, and the outer diameter of the clamping cylinder is equivalent to the inner diameter of the third cylinder.

5. The non-removable quick connect and disconnect assembly of claim 1, wherein: the inner diameter of the plug is equal to the outer diameter of the male plug.

6. The non-removable quick connect and disconnect assembly of claim 1, wherein: the bayonet head extends toward the plug.

7. The non-removable quick connect and disconnect assembly of claim 1, wherein: the abutting step is provided with a guiding-in part.

8. The non-removable quick connect and disconnect assembly of claim 1, wherein: the non-detachable quick connector assembly further comprises a sealing ring arranged between the free end of the plug and a step formed by the first cylinder and the second cylinder.

9. The non-removable quick connect and disconnect assembly of claim 8, wherein: the inserting portion further comprises an avoiding groove formed in a step formed by the first cylinder and the second cylinder, and the avoiding groove is used for containing the sealing ring.

10. The non-removable quick connect and disconnect assembly of claim 1, wherein: the step formed by the plug and the clamping cylinder is abutted against the step formed by the second cylinder and the third cylinder.