CN217683795U

CN217683795U - Quick connector with current limiting function

Info

Publication number: CN217683795U
Application number: CN202222009539.6U
Authority: CN
Inventors: 夏雷鸣; 李立涛; 文石奎; 刘玉龙; 赵容达
Original assignee: Hebei Chinaust Automotive Plastics Co Ltd
Current assignee: Hebei Chinaust Automotive Plastics Co Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-10-28
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses a quick connector with current limiting function, because the restriction valve is located the through-hole that is located the pipeline end, only need with the overall dimension of pipeline end and the overall dimension of restriction valve correspond the design can, even the size of the through-hole of pipeline end slightly is less than the overall dimension of restriction valve, make the restriction valve can with connect body interference fit can, other sealed departments can seal according to the original sealing member of quick connector, can not newly-increased sealed point and oil leak point, can avoid the condition of oil leak to take place, can not make nylon pipeline inner wall on the contrary by the fish tail because of the restriction valve dress, stop quick connector's potential safety hazard, make the probability that quick connector appears the defective products reduce, quick connector's production and manufacturing cost also can reduce by a wide margin, thereby the product competitiveness of quick connector has been improved, with this quality requirement that satisfies enterprise increases day by day.

Description

Quick connector with current limiting function

Technical Field

The utility model relates to a quick connect coupler technical field, more specifically say, relate to a quick connector with current limiting function.

Background

The engine generates pulses in the fuel supply process of the fuel tank in the fuel inlet pipe of the engine, and the pulses easily cause abnormal sound and damage to the nylon pipe; along with the advance of the lightweight process, the small-flow limiting valve joint is required to resist pulse pressure, and the normal work of the engine is ensured.

At present, an engine oil inlet pipe on an automobile generally needs to be connected by using a quick connector, the quick connector is connected with a nylon pipe, and a flow limiting valve is forcibly assembled in the nylon pipe, so that the weight of the whole device is increased, and the oil leakage is easily caused due to the increase of connection points, and further serious quality accidents are easily caused; the structure is easy to be reversely installed due to the flow limiting valve and the inner wall of the nylon pipe body is easy to scratch.

For example, chinese patent No. 202122381513.X provides "a new quick connector" used in combination with a male connector, which includes a female connector and a locking plate, wherein one end of the female connector is a plug end, and the plug end is used for quick connection with the male connector; the locking plate comprises a locking plate main body and two elastic locking arms extending out of the locking plate main body; the lock plate main body comprises a positioning part for limiting the male joint in the female joint; the plug-in end of the female connector is provided with a slot, and the elastic locking arm of the locking plate penetrates through the slot to be clamped on the plug-in end. When the locking plate is used, the locking plate is inserted into the slot at the inserting end of the female connector, the positioning part of the locking plate main body limits the male connector in the female connector and prevents the male connector from being separated, the elastic locking arm of the locking plate is used for fixing the locking plate on the female connector, and the improved structure is fast and labor-saving to install.

The quick connector only has the function of the quick connector and does not have the function of limiting the current, if the quick connector is required to have the function of limiting the current, a current limiting valve is required to be installed on a nylon pipeline connected with a pipeline end of the quick connector, the current limiting valve is installed on the nylon pipeline in a forced mode, the situation of oil leakage is easily caused due to more connecting points, the inner wall of the nylon pipeline is scratched due to the fact that the current limiting valve is installed on the nylon pipeline, the structure has certain potential safety hazards, the probability of defective products of the quick connector is increased, the production cost and the manufacturing cost of the quick connector are also greatly increased, the product competitiveness of the quick connector is reduced, and the increasing quality requirements of enterprises cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem how to make quick connector possess the current-limiting function under the condition of not newly increasing the oil leakage point. Because the restriction valve is located in the through-hole of pipeline end, only need with the overall dimension of pipeline end and the overall dimension of restriction valve correspond the design can, even the size of the through-hole that makes the pipeline end slightly is less than the overall dimension of restriction valve, make the restriction valve can with connect the body interference fit can, other sealed departments can seal according to the original sealing member of quick-witted plug, can not newly-increased sealed point and oil leak point, can avoid the condition of oil leak to take place, can not make nylon pipeline inner wall by the fish tail because of restriction valve dress on the contrary, stop the potential safety hazard of quick-witted plug, make the probability that the defective products appears in quick-plug reduce, the production and the manufacturing cost of quick-plug also can reduce by a wide margin, thereby the product competitiveness of quick-plug has been improved, with this demand for quality that satisfies enterprise increases day by day.

The utility model discloses the technical problem that will solve realizes through following technical scheme:

in order to solve the technical problem, the utility model provides a quick connector with a current limiting function, which is used for an oil inlet pipe of an engine and comprises a connector body and a current limiting valve, wherein the connector body comprises a quick connecting end and a pipeline end which are integrally formed, and the quick connecting end and the pipeline end are penetrated through a through hole; the flow limiting valve is arranged in the through hole at the pipeline end and is in interference fit with the joint body.

As the utility model provides a quick connector's a preferred embodiment with current-limiting function, the restriction valve includes first valve body, second valve body and steel ball, the steel ball can the restrictive removal between first valve body and second valve body, be provided with the elastic component in the first valve body, the one end of elastic component and the inside butt of first valve body, its other end can with the steel ball butt.

As the utility model provides a quick connector with current-limiting function's a preferred embodiment, the second valve body with be located the pipeline end connect body interference fit.

As the utility model provides a quick connector with current-limiting function's an preferred embodiment, the surface of second valve body is the wavy undulation.

As the utility model provides a quick connector with current limiting function's an preferred embodiment, the axial hole has been seted up to the steel ball.

As the utility model provides a quick connector with current-limiting function's a preferred embodiment is located quick-connect end this internal first sealing washer, spacer ring, second sealing washer, safety ring and the hasp of having set gradually from bottom to top of connecting.

As the utility model provides a quick connector with current-limiting function's a preferred embodiment, the hasp includes the locking plate and by two elastic locking arm that the locking plate extends out, is located the end of meeting soon be provided with two on the joint body the corresponding slot of elastic locking arm.

As the utility model provides a quick connector with current-limiting function's a preferred embodiment, locking plate and two the inboard of elastic locking arm is formed with location portion, location portion is the semi-ring shape dogtooth structure of opening towards elastic locking arm.

As the utility model provides a quick connector with current-limiting function's a preferred embodiment, the upper surface of locking plate is provided with the slider, be provided with on the joint body with the spout that the slider corresponds.

As a preferred embodiment of the quick connector with current limiting function provided in the present invention, two of the resilient locking arms are provided with a buckle on the outer surface thereof.

The utility model discloses following beneficial effect has:

because the restriction valve is located in the through-hole of pipeline end, only need with the overall dimension of pipeline end and the overall dimension of restriction valve correspond the design can, even the size of the through-hole that makes the pipeline end slightly is less than the overall dimension of restriction valve, make the restriction valve can with connect the body interference fit can, other sealed departments can seal according to the original sealing member of quick-witted plug, can not newly-increased sealed point and oil leak point, can avoid the condition of oil leak to take place, can not make nylon pipeline inner wall by the fish tail because of restriction valve dress on the contrary, stop the potential safety hazard of quick-witted plug, make the probability that the defective products appears in quick-plug reduce, the production and the manufacturing cost of quick-plug also can reduce by a wide margin, thereby the product competitiveness of quick-plug has been improved, with this demand for quality that satisfies enterprise increases day by day.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of a quick connector with a current limiting function according to the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic structural view of the flow limiting valve in fig. 2.

Fig. 4 is a cross-sectional view of fig. 1.

Fig. 5 is a schematic view of the flow restriction valve of fig. 4.

Fig. 6 is an exploded view of the joint body of fig. 1.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The utility model provides a quick connector with current limiting function, which is used for an oil inlet pipe of an engine and comprises a connector body 1 and a current limiting valve 2, wherein the connector body 1 comprises a quick connecting end 100 and a pipeline end 200 which are integrally formed, and the quick connecting end 100 and the pipeline end 200 are penetrated through a through hole 300; the flow limiting valve 2 is arranged in the through hole 300 at the pipeline end 200, and the flow limiting valve 2 is in interference fit with the joint body 1.

Because the restriction valve 2 is arranged in the through hole 300 positioned at the pipeline end 200, only the appearance size of the pipeline end 200 and the appearance size of the restriction valve 2 need to be correspondingly designed, namely, the size of the through hole 300 of the pipeline end 200 is slightly smaller than the appearance size of the restriction valve 2, the restriction valve 2 can be in interference fit with the connector body 1, other sealing parts can be sealed according to the original sealing part of the quick-connection plug, a sealing point and an oil leakage point cannot be newly added, the oil leakage situation can be avoided, the inner wall of a nylon pipeline cannot be scratched due to the installation of the restriction valve 2, the potential safety hazard of the quick-connection plug is avoided, the probability of defective products of the quick-connection plug is reduced, the production and manufacturing costs of the quick-connection plug can also be greatly reduced, the product competitiveness of the quick-connection plug is improved, and the ever-increasing quality requirements of enterprises are met.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Example 1

Please refer to fig. 1 to 5, for the present invention provides a quick connector with a current limiting function, which is used for an oil inlet pipe of an engine, and includes a connector body 1 and a current limiting valve 2, wherein the connector body 1 includes a quick connector 100 located above and a pipeline 200 located below, in this embodiment, the quick connector 100 and the pipeline 200 are formed by integral injection molding, the connector body 1 penetrates through a through hole 300 from top to bottom, the diameter of the through hole 300 located at the quick connector 100 is larger by penetrating through the quick connector 100 and the pipeline 200, the diameter of the through hole 300 located at the pipeline 200 is smaller, it can be seen that the diameter of the through hole 300 is smaller from top to bottom, but the diameter of the through hole 300 is not gradually changed, but different sizes are designed according to different positions; the flow limiting valve 2 comprises a first valve body 21 located above and a second valve body 22 located below, the first valve body 21 and the second valve body 22 are integrally formed, a moving space for movement of the steel balls 23 is formed in the first valve body 21 and the second valve body 22, an elastic part 24 is fixed on the top surface of an inner hole of the first valve body 21, the elastic part 24 is a spring in the embodiment, the other end of the spring can be abutted to the steel balls 23, and the flow limiting valve 2 extends into the through hole 300 from top to bottom for installation during installation, so that the flow limiting valve 2 is in interference fit with the connector body 1. When the gasoline in the quick connector is normal in flow speed after the quick connector is connected with the oil inlet pipe of the engine, the steel ball 23 is pushed to the moving space between the first valve body 21 and the second valve body 22, and the gasoline can smoothly pass through the flow limiting valve 2; when the gasoline flow rate is too high, the steel ball 23 is pushed to the first valve body 21 by a strong flow rate, and the steel ball 23 blocks the inner hole of the first valve body 21, so that the gasoline cannot smoothly pass through the flow limiting valve 2, and the purpose of flow limiting is achieved.

As a preferred embodiment provided by the present invention, the second valve body 22 and the connector body 1 located Guan Luduan are in interference fit, that is, the external dimension of the second valve body 22 is slightly larger than the dimension of the through hole 300 located at the pipeline end 200, which can make the flow limiting valve 2 obtain a seal while being fixed, and prevent the gasoline from flowing through the gap between the flow limiting valve 2 and the through hole 300.

As a preferred embodiment provided by the utility model, the surface of second valve body 22 is the wavy undulation form, and the surface of wavy undulation form can be so that second valve body 22 and the through-hole 300 that is located pipeline end 200 are sealed many places, improves sealed effect, further avoids petrol to flow through the gap between restriction valve 2 and the through-hole 300.

As a preferred embodiment of the present invention, the steel ball 23 has an axial hole 25.

Example 2

Referring to fig. 1 to 6, as a further optimization scheme of the embodiment 1, in this embodiment, a first seal ring 3, a separation ring 4, a second seal ring 5, a safety ring 6, and a lock catch 7 are sequentially disposed from bottom to top in the joint body 1 located at the quick-connection end 100, the first seal ring 3 and the second seal ring 5 are respectively used for ensuring that the seal is not leaked and enhancing the seal function, the separation ring 4 can separate the first seal ring 3 from the second seal ring 5, the safety ring 6 can prevent the first seal ring 3 from being separated from the second seal ring 5, and the lock catch 7 is used for locking the male joint after the assembly is completed. A third sealing ring 8 is fixed on the outer surface of the joint body 1 at the pipeline end 200, and is used for sealing the pipeline and the joint body 1.

Example 3

As a further optimization scheme of embodiment 2, in this embodiment, the lock catch 7 includes a lock plate 71 and two elastic lock arms 72 extended from the lock plate 71, a slot 11 corresponding to the two elastic lock arms 72 is disposed on the joint body 1 at the quick-connect end 100, and the two elastic lock arms 72 can pass through the slot 11 to be clamped on the joint body 1 at the quick-connect end 100, so as to fix the lock catch 7 and the joint body 1.

As a preferred embodiment provided by the utility model, two the surface of elastic locking arm 72 is provided with buckle 73, can tightly block the slot 11 on the joint body 1 through buckle 73 to avoid hasp 7 to drop, also only need inwards press down buckle 73 when needing to lift hasp 7 can, improve assembly efficiency, reduce the operating cost.

As a preferred embodiment of the present invention, the locking plate 71 and two inner sides of the elastic locking arm 72 are formed with positioning portions 74, the positioning portions 74 are used for limiting the male connector inside the lock catch 7 and preventing the male connector from falling off, and the positioning portions 74 are a semi-annular protruding tooth structure with an opening facing the elastic locking arm 72.

As a pair of the utility model provides a pair of preferred embodiment, the upper surface of locking plate 71 is provided with slider 75, connect be provided with on the body 1 with the spout 12 that slider 75 corresponds to in making slider 75 can be smoothly from radially slipping into spout 12, and then make hasp 7 and connect and realize counterpointing and assembly between the body 1, improve the packaging efficiency.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. The utility model provides a quick connector with current limiting function, its oil pipe is advanced for the engine, its characterized in that, it includes:

the joint body comprises a quick connection end and a pipeline end which are integrally formed, and the quick connection end and the pipeline end penetrate through the through hole;

and the flow limiting valve is arranged in the through hole positioned at the pipeline end, and the flow limiting valve is in interference fit with the joint body.

2. The quick-connect coupling with a flow limiting function according to claim 1, wherein the flow limiting valve comprises a first valve body, a second valve body and a steel ball, the steel ball can move restrictively between the first valve body and the second valve body, an elastic member is arranged in the first valve body, one end of the elastic member abuts against the inside of the first valve body, and the other end of the elastic member abuts against the steel ball.

3. The quick connector with flow restriction of claim 2, wherein the second valve body is an interference fit with the connector body at the line end.

4. The quick connector with a flow restriction function according to claim 2, wherein an outer surface of the second valve body is undulated.

5. The quick connector as claimed in claim 2, wherein the ball defines an axial bore.

6. The quick-connect coupling with a current-limiting function according to claim 1, wherein a first sealing ring, a spacer ring, a second sealing ring, a safety ring and a lock catch are sequentially arranged in the coupling body at the quick-connect end from bottom to top.

7. The quick connector with current limiting function as claimed in claim 6, wherein the latch comprises a locking plate and two elastic locking arms extending from the locking plate, and the connector body at the quick connector end is provided with slots corresponding to the two elastic locking arms.

8. The quick connector with a current limiting function as claimed in claim 7, wherein the locking plate and the inner sides of the two elastic locking arms are formed with positioning portions, and the positioning portions are semi-annular protruding tooth structures with openings facing the elastic locking arms.

9. The quick connector with the function of limiting the flow of current of claim 7, wherein the upper surface of the locking plate is provided with a sliding block, and the connector body is provided with a sliding groove corresponding to the sliding block.

10. The quick connector with current limiting function as claimed in claim 7, wherein the outer surfaces of the two resilient locking arms are provided with a snap.