CN113464742A

CN113464742A - External locking type quick connector with double wings

Info

Publication number: CN113464742A
Application number: CN202110916547.6A
Authority: CN
Inventors: 赵建明; 赵立永; 刘洋洋; 尹承乾; 赵艳
Original assignee: Hebei Chinaust Automotive Plastics Co Ltd
Current assignee: Hebei Chinaust Automotive Plastics Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-10-01

Abstract

The invention relates to the technical field of connecting joints for automobile fluid transmission, and more particularly, to an external locking type quick-plug joint with double wings. An external locking type quick-plug joint, comprising a female joint, a sealing ring, a clip, and a male joint body, the male joint body comprises a male joint quick-insertion end and a male joint connecting end connected thereto, and the male joint connecting end is connected with a pipeline; The quick-plug end of the connector includes a middle column of the male connector located in the middle, and the sealing ring is sleeved on the middle column of the male connector; the quick-plug end of the male connector also includes a groove arranged around the periphery of the middle column of the male connector. Covered on the groove; one end face of the clip is provided with a clip clamping part, the female connector is connected with the quick-insertion end of the male connector, and the clip clipping part is used for clipping the female connector. The invention adopts sealing ring sealing, which is superior to the original rubber tube connection sealing form. The female and male joints are separated, the connection is very fast, the space is small, and the original process of manually tightening the clamp is saved.

Description

External locking type quick connector with double wings

Technical Field

The invention relates to the technical field of connecting joints for automobile fluid transmission, in particular to an external locking type quick connector with double wings.

Background

Heating methods in the SCR system of sending out on the present vehicle, except that electric auxiliary heating, heat through the engine production is heated in addition, and in the new energy automobile group battery thermal management system, all need pass through pipe-line system with the heat and connect and the conveying, though also there are various connected modes on the market, pass through clamp lug connection etc. like the rubber tube, but this kind is not applicable to nylon tube connection, in order to adapt to and nylon tube connection, high temperature resistant, it is water-fast to resist, the function that still has quick plug, the structure is simple, connect the high requirement of reliability, need develop the quick connector of corresponding function.

On the other hand, engine cooling, SCR system and new forms of energy battery package etc. adopt the thermal cycle water heat preservation mode on, the connection of rubber tube is given first place, general rubber tube wall thickness is thicker, occupation space is great, its attach fitting mainly uses the metal as the owner, corrosion resistance is poor, and it screws up still to increase the clamp after connecting, consolidate, the phenomenon of also often revealing of installation extremely inconvenient, in order to solve above problem, can adopt the mode of nylon pipe to change and insert the connection soon, it is connected and inserts also ripe soon, and the SAE structure inserts the size soon great, occupation space is also great, can not adopt, and need redesign to develop and have the function of inserting soon, do benefit to the nylon union coupling again, occupation space is little, do benefit to the reliable joint of operation installation and sealing.

Disclosure of Invention

The invention aims to solve the technical problems at least to a certain extent, and provides an external locking type quick connector which is very quick in connection, small in occupied space, capable of saving the original process of manually screwing a clamp, reducing the labor intensity of the original rubber tube connection mode, good in sealing performance and convenient to replace.

The technical scheme of the invention is as follows: an external locking type quick connector with double wings comprises a female connector, a sealing ring, a clamp and a male connector body, wherein the male connector body comprises a male connector quick connector end and a male connector connecting end connected with the male connector quick connector end, and the male connector connecting end is connected with a pipeline;

the quick male joint inserting end comprises a male joint middle column arranged in the middle, and the sealing ring is sleeved on the male joint middle column; the quick-plug end of the male joint also comprises a groove arranged around the periphery of the middle column of the male joint, and the clip is clamped and coated on the groove; one end face of the clamp is provided with a clamp clamping portion, the female connector and the male connector are connected through the quick-plugging end, and the clamp clamping portion is used for clamping the female connector.

Furthermore, the outer wall of the clamp extends outwards to form a clamping fin which can be clamped in the groove.

Preferably, the number of the clamping fins is 2, the 2 clamping fins extend outwards from the outer wall of the clip and are arranged in a cross mode.

Furthermore, the one end that female joint and male joint quick-plug end are connected be equipped with female joint recess and female joint boss, checkpost joint portion pass through the female joint boss joint in the female joint recess.

Preferably, the clip clamping portion is a clamping hook structure provided with an inclined plane.

Preferably, the number of the clamp clamping parts is 2, and the clamp clamping parts are symmetrically arranged on the end face of the clamp connected with the female connector boss.

Furthermore, the male joint quick-plug end further comprises a first boss and a second boss, and the first boss and the second boss are respectively arranged on two sides of the groove.

Further, the second boss is a continuous annular protrusion; first boss is the annular arch of disconnection, and the disconnection department of first boss holds 2 checkpost joint portions.

Furthermore, the middle column of the male joint is also provided with a middle column groove used for clamping the sealing ring.

Furthermore, the male joint connecting end is of a bamboo joint structure.

Compared with the prior art, the beneficial effects are: the invention adopts the sealing ring for sealing, which is superior to the original rubber pipe connection sealing form. The female joint and the male joint are separated, the connection is very quick, the occupied space is small, the original process of manually screwing the clamp is omitted, the labor intensity of the original rubber pipe connection mode is reduced, the effect after installation is more attractive, the sealing performance is better, and the replacement is also convenient. Meanwhile, the crossed double-wing structure is adopted, so that the male and female connectors are convenient to disassemble.

Drawings

Fig. 1 is a schematic diagram of the overall explosive structure of the present invention.

Fig. 2 is an exploded view of the seal ring, clip, and male connector body of the present invention before assembly.

Fig. 3 is a perspective view of the assembled seal ring, clip and male connector body of the present invention.

Fig. 4 is a schematic plan view of the assembled seal ring, clip and male connector body of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Specifically, the invention relates to a quick connector which is used for introducing a cooling liquid medium into an engine system, a post-treatment system and a new energy battery pack of a commercial vehicle to heat urea liquid or exchange heat, and consists of a standard female connector 10 connected to an engine or a urea box or a pump or a battery pack, a male connector body 40 connected with a nylon pipe with a corresponding specification, a clamp 30 and a sealing ring 20.

As shown in fig. 1 to 4, the externally locking quick connector with double wings comprises a female connector 10, a sealing ring 20, a clip 30 and a male connector body 40, wherein the male connector body 40 comprises a male connector quick connector end 44 and a male connector connecting end 45 connected with the male connector end 44, and the male connector connecting end 45 is connected with a pipeline (not shown). The female joint 10 and the male joint can be respectively connected with a nylon hose pipeline. In order to facilitate the fastening performance of the nylon hose, a plurality of bamboo joint type inverted teeth (as shown in fig. 1) are arranged on the periphery of the male connector connecting end 45.

As shown in fig. 1 and 2, the male fitting quick-connect end 44 includes: a male joint middle column 46 arranged in the middle part, and the sealing ring 20 is sleeved on the male joint middle column 46; a groove 41 is formed around the periphery of the male connector center post 46, and the clip 30 is snapped into and semi-wrapped around the groove 41 (as shown in fig. 3).

The upper end face of the clip 30 is symmetrically provided with clip clamping portions 32, when the clip 30 is clamped and semi-wrapped on the groove 41, as shown in fig. 3, the clip clamping portions 32 protrude out of the groove 41, and the annular main body portion of the clip is embedded into the groove 41 to form stable connection. In addition, the clip catching portions 32 serve to catch the female connector 10 when the female connector 10 is coupled with the male connector quick-insert end 44, thereby forming a stable coupling of the female connector 10 with the male connector 40.

Optionally, as shown in fig. 1, the male fitting center post 46 is further provided with a center post groove 47, the center post groove 47 being used to secure and snap the seal ring 20 in place to provide a tight seal during fluid transfer.

The outer wall of the clip 30 is extended outward to form a clip fin 31 which can be clipped in the groove 41. Specifically, the number of the snap fins 31 is two, that is, 2, the 2 snap fins 31 extend and protrude outward from the outer wall of the clip 30, and the 2 snap fins 31 are arranged to intersect with each other. In this embodiment, the entire clip 30 is shaped like an "Ω". As described above, the omega-shaped clip 30 and the center post groove 47 of the center post 46 of the male connector form a interfitting wrap-around configuration, and the projecting double snap wings 31 cross each other outside the center post groove 47. The double fins 31 are arranged to cross each other in a normal state as shown in fig. 3.

In the initial state, the male connector body 40, the sealing ring 20 and the clip 30 are assembled together, and after the connection end 45 of the male connector 40 is connected with the nylon tube, the nylon tube is directly inserted into the female connector 10, and the omega-shaped clip 30 and the middle column groove 47 of the middle column 46 of the male connector form a mutually embedded and wrapped structure, so that the male and female connectors are stably connected, and the sealing effect is achieved through the compression of the sealing ring 20.

As shown in fig. 4, when the protruding double wings 31 are subjected to a simultaneous external force (for example, when a pair of opposite forces is applied by a thumb and a forefinger of a person), the opening of the double wings 31 of the clip 30 causes the clip 30 to deform, causing the mutual distance between the clip catching portions 32 to increase, i.e., the diameter of the clip 30 to increase, so that the clip 30 is easily separated from the projection of the female joint 10 (the female joint will be described in detail later), thereby allowing the female joint to be easily separated from the male joint.

After the external force is removed, the clip 30 is restored to its original position, and thus, the structure can be used repeatedly. Due to the special double-wing structure of the omega-shaped clamp 30, the ergonomic design is achieved, the male and female connectors can be opened without any tool, and the double-wing clamp can be used repeatedly.

In the female joint 10, as shown in fig. 1, a female joint groove 11 is formed at the end of the female joint 10 connected to the male joint quick-insertion end 44, the lower end of the female joint groove 11 is connected to a female joint boss 12, and the engaging portion 32 of the clip is engaged with the female joint groove 11 via the female joint boss 12.

The clip fastening portions 32 may be symmetrically arranged to have a hook structure with an inclined surface. The quantity of checkpost joint portion 32 is 2, 3, 4 … …, and its central symmetry is located checkpost 30 and the terminal surface that the female joint boss 12 is connected.

In this embodiment, compare as shown in fig. 2 and fig. 3, checkpost 30 passes through the inclined plane of checkpost joint portion 32 and under the effect of assembly force with female joint boss 12, the inclined position receives the downward pressure of female joint boss 12 to open gradually automatically, it also opens to take connecting checkpost 30, the external diameter progressively increases, male joint body 40 continues the assembly upwards, perhaps female joint body 10 continues the assembly downwards, until the inclined plane of checkpost joint portion 32 imbeds in female joint recess 11 completely, after the assembly targets in place, checkpost 30 deformation disappears, checkpost 30 kick-backs, as shown in fig. 3, the trip pawl of checkpost 32 of checkpost 30 just in the female joint recess 11, form the connection of negative and positive joint.

As shown in fig. 2, the male quick-connect end 44 further includes a first boss 42 and a second boss 43, and the first boss 42 and the second boss 43 are respectively disposed at two sides of the groove 41. In this embodiment, the first boss 42 and the second boss 43 are arranged, so that the clip 30 cannot fall off when being clamped in the groove 41 of the male connector quick-plug end 44, the first boss 42 and the second boss 43 play a role in limiting the clip 30, and the clamping state of the clip 30 is as shown in fig. 3.

The first projection 42 may be discontinuous such that discontinuous indentations (shown in fig. 1 and 2) in the first projection 42 engage the protruding catch portion 32 of the clip 30, as shown in fig. 3. Specifically, the first boss 42 is a broken annular protrusion, and the broken part of the first boss 42 is just used for accommodating 2 clip clamping portions 32, and the highest position of the 2 clip clamping portions 32 is flush with the top end face of the first boss 42.

In this embodiment, as shown in fig. 2-4, the second boss 43 is a continuous annular protrusion; when the clip 30 is clipped in the groove 41 of the male joint quick-plugging end 44, the second boss 43 supports and limits the clip 30, and the double-clip fin 31 is also clipped between the first boss 42 and the second boss 43, as shown in fig. 3, the sealing ring 20, the clip 30 and the male joint body 40 are stably fixed together.

In addition, the quick-insertion type nylon pipe assembly with the quick-insertion structure can be used, and the nylon pipe assembly with lighter weight and thinner wall thickness (small spot space) can be used, so that the quick-insertion type nylon pipe assembly is more convenient to bundle with other pipelines, has smaller total diameter and is more attractive. Further, the male joint connection end 45 is of a bamboo joint structure so as to form a closed quick connection with the pipeline.

The invention relates to a quick connector with double wings, which is mainly used for connecting pipeline connectors and transmitting heat in automobile engines, post-processing and new energy battery packs, wherein one end of the quick connector is a bamboo joint type male connector connecting end 45 and is connected with a pipeline, and the other end of the quick connector is a male connector quick-plugging end 44 and is connected with a female connector 10.

The invention has the advantages of simple structure, small occupied space, convenient and reliable connection and easy disassembly.

The working principle is as follows: as shown in fig. 1-4, the initial state: the male joint body 40 is provided with the sealing ring 20 and then provided with the clip 30, the clip is of a structure similar to an omega shape and just overlaps with the groove 41 of the male joint body 40 to form a coating shape, the outer edge of the quick-plugging end 44 of the male joint is provided with a first boss 42 and a second boss 43, so that the clip 30 can not fall off, and the outer edge is also provided with the groove 41 just accommodating the clamping fin 31 of the clip 30 to stretch into the groove.

The installation state is as follows: after the assembly of the male connector body 40 and the nylon tube is completed, the male connector quick-insertion end 44 is directly inserted into the interface of the female connector 10, the clip 30 is contacted with the female connector 10 through the leading-in of the male connector intermediate column 46, meanwhile, the sealing ring 20 on the male connector intermediate column 46 is matched with the inner hole of the female connector 10, the sealing ring 20 is compressed to form sealing, the oblique position of the clip 30 is automatically opened under the action of external pressure through the oblique surface of the clip clamping portion 32 and the female connector boss 12 under the action of assembly force, the connecting clip 30 is also opened, the male connector body 40 is continuously assembled forwards, after the assembly is in place, the clip 30 rebounds, and the hook pawl of the clip clamping portion 32 is just clamped in the female connector groove 11 to form connection. Therefore, the quick connection and quick disconnection device has the functions of quick connection and quick disconnection.

The disassembly state is as follows: the protruding double-wing clip 31 is when receiving the external force of simultaneous action (for example, when people's thumb and forefinger give its a pair of opposite effort), the opening of the double-wing clip 31 of checkpost 30 is taken with the deformation of checkpost, causes the mutual distance increase of checkpost joint portion 32, and the diameter of checkpost 30 increases promptly to make checkpost 30 break away from out in the boss of female joint 10 very easily, thereby make the yin and yang joint easily separable, thereby accomplish the dismantlement of yin and yang joint.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An external locking type quick-plug connector with double wings, comprising a female connector (10), a sealing ring (20), a clip (30), and a male connector body (40), characterized in that the male connector body (40) comprising a male connector quick-plug end (44) and a male connector connecting end (45) connected thereto, and the male connector connecting end (45) is connected to a pipeline;

The male connector quick-plug end (44) includes a male connector middle column (46) arranged in the middle, and the sealing ring (20) is sleeved on the male connector middle column (46); The plug end (44) also includes a groove (41) surrounding the outer periphery of the male connector middle column (46), and the clip (30) is clamped and covered on the groove (41); the clip (30) ) is provided with a clip engaging portion (32) on one end surface, the female connector (10) is connected to the male connector quick-plug end (44), and the clip engaging portion (32) is used for clipping the female connector (10) .

2. The double-winged external locking type quick-plug joint according to claim 1, characterized in that: the outer wall of the clip (30) extends outwardly and is provided with a clip that can be clamped in the groove (41). Card Wing (31).

3. A kind of external locking type quick-plug joint with double fins according to claim 2, characterized in that: the number of the clamping fins (31) is 2, and the 2 clamping fins (31) are connected from the clamp (30). ) The outer wall extends outward and protrudes, and the two clamping fins (31) are arranged to cross each other.

4. An external locking type quick-plug connector with double wings according to claim 1, characterized in that: the end of the female connector (10) connected with the male connector quick-plug end (44) is provided with a female connector The groove (11) and the female joint boss (12), and the clip engaging portion (32) is clipped into the female joint groove (11) through the female joint boss (12).

5 . The outer-locking quick-plug connector with double wings according to claim 4 , wherein the clip engaging portion ( 32 ) is a hook structure with symmetrical inclined planes. 6 .

6. The double-winged outer-lock type quick-plug connector according to claim 5, wherein the number of the clip engaging parts (32) is two, which are symmetrically arranged between the clip (30) and the clip (32). on the end face where the female connector boss (12) is connected.

7. An external locking type quick-plug connector with double wings according to claim 6, characterized in that: said male connector quick-plug end (44) further comprises a first boss (42) and a second boss The platform (43), the first boss (42) and the second boss (43) are respectively arranged on both sides of the groove (41).

8. The double-finned external locking type quick-plug joint according to claim 7, characterized in that: the second boss (43) is a continuous annular projection; the first boss (42) For the broken annular protrusion, the broken part of the first boss (42) accommodates two clip engaging parts (32).

9. The double-winged external locking type quick-plug joint according to any one of claims 1 to 8, characterized in that: the male joint middle column (46) is further provided with a sealing ring (20) for clamping ) in the middle column groove (47).

10 . The double-winged outer-locking quick-plug connector according to any one of claims 1 to 8 , wherein the male connector connecting end ( 45 ) has a bamboo-like structure. 11 .