CN113309870B

CN113309870B - Connecting device and pipeline functional part assembly and medium system applying same

Info

Publication number: CN113309870B
Application number: CN202010123865.2A
Authority: CN
Inventors: 吴双茂
Original assignee: Suzhou Samsung Electronics Co Ltd; Samsung Electronics Co Ltd
Current assignee: Suzhou Samsung Electronics Co Ltd; Samsung Electronics Co Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2023-06-06
Anticipated expiration: 2040-02-27
Also published as: CN113309870A

Abstract

The invention discloses a connecting device and a pipeline functional part assembly and a medium system using the same, wherein when the connecting device is required to be conducted, an external force is applied to a limiting mechanism, the inlet of the flow channel mechanism is led into a pipeline, so that a fluid medium in the pipeline is led in through the inlet and flows into the functional part through the outlet, when the functional part is required to be disassembled, the external force of the limiting mechanism is only required to be removed, the inlet of the flow channel mechanism is withdrawn into a valve body from the pipeline, so that the fluid medium cannot flow into the functional part through the inlet and the outlet, and the inlets of the flow channel mechanism are arranged at two sides of the flow channel structure.

Description

Connecting device and pipeline functional part assembly and medium system applying same

Technical Field

The invention relates to the technical field of pipelines, in particular to a connecting device, a pipeline functional part assembly using the connecting device and a medium system.

Background

In the flowing medium system, the functional product is usually connected to the main system pipeline, so as to ensure the safe operation of the system or realize certain functions, and in general, the connection mode of the functional product and the main system pipeline is welded or threaded, so that the functional product can be communicated with the main system pipeline.

In the prior art, when the functional product is installed or removed, part or all of the medium in the main system pipeline is generally removed to ensure that the medium in the main system pipeline does not overflow.

However, when the functional product is installed or disassembled through welding or threaded connection, after part or all of the medium in the main system pipeline is discharged, no medium overflow cannot be completely guaranteed, and when the functional product is installed or disassembled, the functional product is more complicated, time and labor are wasted, and when the medium directly flows into the functional product, the function of the functional product is easy to be abnormal due to unstable water pressure in the main system pipeline or more impurities in the medium, so that the operation of the whole medium system is abnormal.

Disclosure of Invention

In view of the above, the embodiment of the invention provides a connecting device, a pipeline functional component assembly and a medium system using the connecting device, so as to solve the problem that when a medium directly flows into a functional product, the function of the functional product is easy to be abnormal, and the operation of the whole medium system is abnormal.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the first aspect of the invention discloses a connecting device for connecting a pipeline and a functional part in a medium system, comprising: the device comprises a limiting mechanism, a resetting mechanism, a sealing mechanism, a valve body and a flow passage mechanism;

the reset mechanism and the flow passage mechanism are arranged in the valve body, and an outlet of the flow passage mechanism is communicated with a first end of the valve body, which is used for being connected with the functional part;

the limiting mechanism is movably arranged on the valve body, can move to a first state and brings the flow passage mechanism to a conducting state, and an inlet of the flow passage mechanism in the conducting state protrudes out from a second end of the valve body, which is used for being connected with the pipeline;

the limiting mechanism can also move to a second state, and limiting on the conducting state of the flow channel mechanism is released;

the sealing mechanism is arranged on the flow passage mechanism;

the return mechanism can provide a return force for the flow passage mechanism from the on state to the off state, when the flow passage mechanism is in the off state, an inlet of the flow passage mechanism is positioned in the valve body, and the sealing mechanism is positioned between the flow passage mechanism and the second end of the valve body to realize sealing.

Preferably, the limiting mechanism is movably arranged on the valve body, the limiting mechanism moves to the first state position, so that the reset mechanism is deformed, the runner mechanism is carried to the on state position, and the inlet of the runner mechanism in the on state is extended out from the second end of the valve body, which is connected with the pipeline.

Preferably, the limiting mechanism is movably arranged on the valve body through a threaded connection structure, moves to a first state position and props against the flow passage mechanism to push the flow passage mechanism to a conducting state position, and an inlet of the flow passage mechanism in the conducting state is extended out from a second end of the valve body, which is used for being connected with the pipeline.

Preferably, the limiting mechanism is provided with a through hole, and an outlet of the flow channel mechanism is communicated with the first end of the valve body, which is used for being connected with the functional part, through the through hole.

Preferably, the reset mechanism includes: and the spring can provide elastic restoring force for the runner mechanism, wherein the elastic restoring force moves from the conducting state position to the closing state position.

Preferably, the sealing mechanism includes: the annular groove for installing the sealing ring is formed in the outer wall of the inlet end of the flow channel mechanism.

Preferably, the inlets of the plurality of runner mechanisms are radially arranged along the runner mechanisms, and the outlets are axially arranged at the first ends of the runner mechanisms and the limiting mechanisms.

Preferably, the limiting mechanism is provided with a connecting molded surface for synchronous rotation cooperation with the functional part.

The second aspect of the invention discloses a pipeline functional part assembly, comprising: functional parts and the connecting device disclosed in the first aspect of the invention.

A third aspect of the invention discloses a media system comprising: a pipe and a connection device as disclosed in the first aspect of the invention.

From the foregoing, the invention discloses a connecting device, a pipeline functional component assembly and a medium system using the same. The reset mechanism and the flow channel mechanism are arranged in the valve body, and an outlet of the flow channel mechanism is communicated with a first end of the valve body, which is used for being connected with the functional part; the limiting mechanism is movably arranged on the valve body, can move to a first state and brings the flow passage mechanism to a conducting state, and an inlet of the flow passage mechanism in the conducting state protrudes out from a second end of the valve body, which is used for being connected with the pipeline; the limiting mechanism can also move to a second state, and limiting on the conducting state of the flow channel mechanism is released; the sealing mechanism is arranged on the flow passage mechanism; the return mechanism can provide a return force for the flow passage mechanism from the on state to the off state, when the flow passage mechanism is in the off state, an inlet of the flow passage mechanism is positioned in the valve body, and the sealing mechanism is positioned between the flow passage mechanism and the second end of the valve body to realize sealing. Through the connecting device and the pipeline functional part assembly and the medium system using the connecting device, through the reset device arranged in the connecting device, and the runner mechanism with the outlet and the inlet, when the connecting device is required to be conducted, the inlet of the runner mechanism is detected into the pipeline by applying external force to the limiting mechanism, so that fluid medium in the pipeline is led in through the inlet and flows into the functional part through the outlet, when the functional part is required to be disassembled, the external force of the limiting mechanism is only required to be removed, the inlet of the runner mechanism is retracted into the valve body from the pipeline, so that the fluid medium cannot flow into the functional part through the inlet and flows into two sides of the runner mechanism, and when the pressure of the fluid medium in the pipeline is unstable or more impurities exist in the fluid medium, the abnormal operation of the functional product can be effectively prevented, and the stable operation of the fluid medium is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a connection device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a connection structure of a connection device, a pipeline and a functional part according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a connection device according to an embodiment of the present invention;

FIG. 4 is a front view of a connecting device according to an embodiment of the present invention;

FIG. 5 is a top view of a connecting device according to an embodiment of the present invention;

FIG. 6 is a schematic bottom view of a connecting device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an internal structure of a connection device in a conductive state according to an embodiment of the present invention;

fig. 8 is a schematic diagram of an internal structure of a connection device in a closed state according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a functional component assembly for a pipeline according to an embodiment of the present invention.

Among them, the pipe 1.C, the functional part 1.A, the stopper mechanism 3.A, the return mechanism 3.D, the seal mechanism 3.c, the valve body 3.e, and the flow path mechanism 3.b.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

An embodiment of the present invention provides a connection device, referring to fig. 1 to 8, which are schematic structural diagrams of the connection device in the embodiment of the present application, where the connection device includes: a limiting mechanism 3.A, a reset mechanism 3.D, a sealing mechanism 3.c, a valve body 3.e and a flow passage mechanism 3.b;

the functional components are components which are connected in the main system and ensure the safe operation of the main system or realize certain functions, such as valve components and the like.

The reset mechanism 3.D and the runner mechanism 3.b are disposed within the valve body 3.e, and an outlet of the runner mechanism 3.b is communicated with a first end of the valve body 3.e for connection with the functional part 1. A;

it should be noted that, the reset mechanism 3.D is a mechanism capable of generating deformation under the action of external force, when the external force is removed, the reset mechanism 3.D can be restored to the initial state from the current deformation, or can be moved to a certain position under the action of external force, when the external force is removed, the reset mechanism 3.D can be restored to the initial position from the current position.

The flow path mechanism 3.b is a mechanism having an outlet and an inlet, and a fluid medium can flow in from the inlet of the flow path mechanism 3.b and flow from the outlet of the flow path mechanism 3.b to the functional component 1.A connected to the first end thereof.

The limiting mechanism 3.A is movably disposed on the valve body 3.e, and the limiting mechanism 3.A is movable to a first state and carries the runner mechanism 3.b to a conducting state, and an inlet of the runner mechanism 3.b in the conducting state protrudes from a second end of the valve body 3.e, which is connected to the pipe 1. C;

the conducting state means that the inlet of the flow path mechanism 3.b can be connected to the pipe 1.C, and the fluid medium in the pipe 1.C can flow into the inlet of the flow path mechanism 3.b, that is, the inlet of the flow path mechanism 3.b is located at the second end connected to the pipe 1. C.

It should be noted that, since the limiting mechanism 3.A is moved to the first state, the runner mechanism 3.b is moved to the conducting state during the movement, and during the movement of the runner mechanism 3.b to the conducting state, the inlet of the runner mechanism 3.b enters the pipe 1.C, that is, the caliber of the inlet extending out of the pipe 1.C is gradually increased until the inlet extends out of the pipe 1.C, so that by this structure, fluctuation of the medium pressure can be effectively avoided, and installation and detachment of the valve components are facilitated.

The limiting mechanism 3.A is also movable to a second state, and the limitation of the conducting state of the runner mechanism 3.b is released;

the sealing mechanism 3.c is provided to the flow path mechanism 3.b;

the sealing mechanism 3.c provided in the flow path mechanism 3.b can effectively prevent the fluid medium in the pipe 1.C from entering the flow path mechanism 3.b when the flow path mechanism 3.b is in the closed state, so as to facilitate the disassembly of the functional component 1.A.

It should be further noted that, when the limiting mechanism 3.A is moved to the second state, the sealing mechanism 3.c will gradually retract the inlet of the flow channel mechanism 3.b from the pipe 1.C into the valve body 3.e due to the restoring force given by the restoring mechanism 3.D, so that the restoring force provided by the restoring mechanism 3.D is enough to prevent the fluid medium in the pipe 1.C from flowing into the inlet of the flow channel mechanism 3.b, and therefore, the restoring force of the restoring mechanism 3.D needs to provide more restoring force, and the excessive restoring force may cause the clearance between the flow channel mechanism 3.b and the valve body 3.e, so that the fluid medium in the pipe 1.C cannot be prevented from flowing into the flow channel mechanism 3.b, and therefore, it is necessary to provide the sealing mechanism 3.c on the flow channel mechanism 3.b, and the sealing mechanism 3.c can limit the flow channel mechanism 3.b under the restoring force provided by the restoring mechanism 3.D, so as to prevent the restoring force provided by the restoring mechanism 3.D from being too great to cause the clearance between the flow channel mechanism 3.b and the valve body 3.e, so that the fluid medium in the pipe 1.C flows into the inlet of the flow channel mechanism 3.b.

The return mechanism 3.D is capable of providing a return force to the flow path mechanism 3.b from the on state to the off state, wherein the inlet of the flow path mechanism 3.b is positioned within the valve body 3.e and the sealing mechanism 3.c is positioned between the flow path mechanism 3.b and the second end of the valve body 3.e to effect a seal.

It should be noted that, the reset mechanism 3.D can provide a restoring force for the flow path mechanism 3.b from the on state to the off state, so that the flow path mechanism 3.b is in the off state, in this state, the inlet of the flow path mechanism 3.b is located in the valve body 3.e, and the fluid medium in the pipeline 1.C cannot flow into the inlet of the flow path mechanism 3.b, that is, a self-locking function is achieved.

In the embodiment of the application, the reset mechanism and the flow channel mechanism are arranged in the valve body, and the outlet of the flow channel mechanism is communicated with the first end of the valve body, which is used for being connected with the functional part; the limiting mechanism is movably arranged on the valve body, can move to a first state and brings the flow passage mechanism to a conducting state, and an inlet of the flow passage mechanism in the conducting state protrudes out from a second end of the valve body, which is used for being connected with the pipeline; the limiting mechanism can also move to a second state, and limiting on the conducting state of the flow channel mechanism is released; the sealing mechanism is arranged on the flow passage mechanism; the return mechanism can provide a return force for the flow passage mechanism from the on state to the off state, when the flow passage mechanism is in the off state, an inlet of the flow passage mechanism is positioned in the valve body, and the sealing mechanism is positioned between the flow passage mechanism and the second end of the valve body to realize sealing. Through the connecting device disclosed by the above, reset device through inside setting, and have the runner mechanism of export and entry, when needs switch on, through applying external force to stop gear, the entry with runner mechanism is visited into the pipeline, make the fluid medium in the pipeline import through the entry, and flow into the functional part through the export, when needs dismantlement functional part, only need remove stop gear's external force, withdraw runner mechanism's entry to in the valve body from the pipeline, make the fluid medium unable flow into the functional part through the export through the entry, and set up runner mechanism's entry in runner structure both sides, when fluid medium pressure is unstable or there is more impurity in the fluid medium in the pipeline, can effectively prevent that the functional product from appearing unusual, guarantee that fluid medium can steady operation.

Further, the limiting mechanism 3.A may be movably disposed on the valve body 3.e, and the limiting mechanism 3.A may be moved to the first state position, so that the reset mechanism 3.D is deformed and moves to the on state position with the runner mechanism 3.b; the limiting mechanism 3.A is also movable to a second state position, and the reset mechanism 3.D is capable of providing a restoring force to the flow path mechanism 3.b from the on state position to the off state position.

The limiting mechanism 3.A may be movably disposed on the valve body 3.e, and the limiting mechanism 3.A and the valve body 3.e may be provided with threads, which are engaged with each other, but the specific implementation is not limited to the threaded engagement.

When the limiting mechanism 3.A is screwed into the valve body 3.e, the limiting mechanism 3.A is moved to the first state position, so that the restoring mechanism 3.D is deformed, and the flow path mechanism 858 3 is moved to the on state position, and when the limiting mechanism 3.A is screwed out of the valve body 3.e, the limiting mechanism 3.A is moved to the second state position, so that the restoring mechanism 3.D can provide the restoring force for the flow path mechanism 3.b to move from the on state position to the off state position.

Further, the limiting mechanism 3.A is movably disposed on the valve body 3.e through a threaded connection structure, and the limiting mechanism 3.A can move to the first state position and props against the runner mechanism 3.b to push the runner mechanism to the on state position.

The limiting mechanism 3.A is movably disposed on the valve body 3.e through a threaded connection structure, so that the inner member of the valve body 3.e can be limited, and the inner member of the valve body 3.e can be prevented from being separated.

It should be further noted that, through threaded connection, the installation and the disassembly of the limiting mechanism 3.A can be greatly facilitated, when the limiting mechanism 3.A moves to the first state position, the runner mechanism 3.b can be driven to move, and the inlet of the runner mechanism 3.b is led to be inserted into the pipeline 1.C, so that the fluid medium in the pipeline 1.C can enter the runner mechanism 3.b through the inlet of the runner mechanism 3.b.

Further, the limiting mechanism 3.A is provided with a through hole, and the outlet of the flow channel mechanism 3.b is communicated with the first end of the valve body 3.e, which is used for being connected with the functional part 1.A, through the through hole.

Further, the reset mechanism 3.D includes: a spring capable of providing an elastic restoring force to the flow path mechanism 3.b from the on-state position to the off-state position.

It should be noted that, be equipped with annular step on runner mechanism 3.b, with the spring cover on runner mechanism 3.b, carry out spacing to the spring through annular step, can effectively prevent that the spring from deviating from in the deformation process.

The spring is a mechanical part that works with elasticity. Parts made of elastic materials deform under the action of external force, and recover after the external force is removed. The springs are generally made of spring steel, and the types of the springs are complex and various, and are divided into spiral springs, plate springs, special springs and the like according to the shape.

In the present application, the return mechanism 3.D may be another mechanism such as a spring plate, and is not limited to a spring.

Further, the sealing mechanism 3.c includes: the sealing ring, the entrance end outer wall of runner mechanism 3.b has seted up the ring channel that is used for installing the sealing ring.

The seal ring is an annular groove that can be attached to the outer wall of the inlet end of the flow path mechanism 3.b, and when the outer surface of the flow path mechanism 3.b is cylindrical, an O-ring is required to be used as the seal ring, and when the outer surface of the flow path mechanism 3.b is square, a rectangular seal ring is required to be used as the seal ring.

In this application, the outer surface of the flow path mechanism 3.b is preferably cylindrical, and thus, in this application, an O-ring is used, but the present invention is not limited thereto.

Further, the inlets of the flow path mechanisms 3.b are disposed radially along the flow path mechanism 3.b, and the outlets are disposed axially at the end of the flow path mechanism 3.b for mating with the first end of the valve body 3.e.

It should be noted that, although a plurality of inlets may be provided in the flow path mechanism 3.b, in this application, it is preferable to provide two inlets in the flow path mechanism 3.b, the two inlets being provided in opposition to each other in the flow path mechanism 3.b, and the outlet of the flow path mechanism 3.b being provided at the end contacting the limiting mechanism 3.A, the fluid medium passing through the inlet of the flow path mechanism 3.b can reach the outlet of the flow path mechanism 3.b.

It should be noted that, since the two inlets are provided on the opposite sides of the flow path mechanism 3.b and the two inlets are provided on the side wall of the flow path mechanism 3.b, abnormal self-locking due to fluctuation of the fluid medium caused by different pressures is effectively prevented when the closed state is switched to the on state.

Further, the limit mechanism 3.A has a connection profile for a synchronous rotational fit with the functional part 1.A.

By means of the connection profile between the limiting mechanism 3.A and the functional part 1.A, when the functional part 1.A is rotated out, the limiting mechanism 3.A can be switched from the first state to the second state, and the inlet of the flow channel mechanism 3.b is retracted from the pipeline 1.C into the valve body 3.e, so that the fluid medium in the pipeline 1.C is effectively prevented from flowing into the valve body 3.e, and when the functional part 1.A is rotated and mounted, the limiting mechanism 3.A can be switched from the second state to the first state, and the inlet of the flow channel mechanism 3.b is inserted into the pipeline 1.C, so that the fluid medium in the pipeline 1.C flows into the valve body 3.e, and the fluid medium flows into the functional part 1.A through the outlet of the flow channel mechanism 3.b.

The embodiment of the application discloses pipeline functional part assembly, refer to fig. 1 to 8, includes: a functional part 1.A and a connecting device.

The connecting device comprises: a limiting mechanism 3.A, a reset mechanism 3.D, a sealing mechanism 3.c, a valve body 3.e and a flow passage mechanism 3.b;

the sealing mechanism 3.c is provided to the flow path mechanism 3.b;

The embodiment of the application discloses a medium system, referring to fig. 1 to 8, including: conduit 1.C and connection means.

the sealing mechanism 3.c is provided to the flow path mechanism 3.b;

To facilitate understanding of the foregoing, the present solution is further described below in conjunction with the specific embodiments in conjunction with fig. 1 to 8:

a is a schematic diagram of a functional part, 2.B is a connecting device of the invention, and 1.C is a medium-containing container or a pipeline structure. The connecting device is a self-locking structure, and the self-locking structure is connected with the functional part and the medium-containing container or the pipeline structure through welding or threads. And 2.B of the invention is a novel connection self-locking structure which is easy to install and disassemble and can not leak medium.

The limiting piece is mainly used for forming the whole self-locking structure and enabling the structure to move up and down when rotating.

3.b is a flow passage structure and is a hollow mechanism, so that the medium can flow conveniently; the top is of a solid structure, so that the refrigerant is prevented from flowing in from the top, and the sealing effect is realized during locking; holes are formed in two sides, so that fluid medium can flow in from the side face conveniently. When the medium flows in from the side, the fluctuation of the flow speed is less, and the performance of the upper connected functional part is more stable.

3.c is an O-ring for lower limit and seal arrangements.

And 3.D is a spring, the self-locking structure provides telescopic force for 3.b and the limiting piece 3.A, and stability and automaticity of the self-locking structure are ensured.

3.e is a valve body and is a shell of the self-locking structure.

The implementation method 1 comprises the following steps: the self-locking structure is shown in fig. 1 and consists of a limiting plate 3.A, a runner structure 3.b, a spring 3.D and a valve body 3.e. The retainer 3.A fits into the valve body 3.e, ensuring that the flow passage structure 3.b and spring 3.D do not pop up the valve body 3.e.

The implementation method 2 comprises the following steps: the self-locking structure is shown in fig. 1 and consists of a limiting plate 3.A, a runner structure 3.B, an O-shaped ring 3.c, a spring 3.D and a valve body 3.e. The limit between the sealing ring 3.c and the valve body 3.e ensures that the flow passage structure 3.b and the spring 3.D do not pop out of the body. The structure is double in limiting and sealing, and the sealing performance is better.

In the implementation of methods 1 and 2, when the limiting piece 3.A rotates to the upper part, small holes at two sides of the runner structure 3.b enter the valve body 3.e and are isolated from the fluid medium system, so that the fluid medium cannot enter the self-locking structure and the functional part. In this case, the functional component is removed again, and thus leakage of the medium or the like does not occur.

In the implementation of methods 1 and 2, when the self-locking structure rotates to the lower part, the inlet of the runner structure 3.b is inserted into the medium system, and when the fluid medium flows in from the side, the flow speed fluctuation is small, the performance of the upper connected functional part is more stable, and the assembly of the upper connected functional part and the functional part can be referred to as fig. 9.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1.A connection device for connecting a pipe (1. C) and a functional part (1. A) in a medium system, characterized by comprising: a limiting mechanism (3. A), a resetting mechanism (3. D), a sealing mechanism (3.c), a valve body (3.e) and a flow passage mechanism (3.b);

the reset mechanism (3. D) and the runner mechanism (3.b) are arranged in the valve body (3.e), and an outlet of the runner mechanism (3.b) is communicated with a first end of the valve body (3.e) for connecting with the functional part (1. A);

the limiting mechanism (3. A) is movably arranged on the valve body (3.e), the limiting mechanism (3. A) can move to a first state and carry the runner mechanism (3.b) to a conducting state, and an inlet of the runner mechanism (3.b) in the conducting state protrudes from a second end of the valve body (3.e) for being connected with the pipeline (1. C);

the limiting mechanism (3. A) is also movable to a second state, and limiting of the on state of the runner mechanism (3.b) is released;

the sealing mechanism (3.c) is arranged on the flow channel mechanism (3.b);

the return mechanism (3. D) is capable of providing a return force to the flow path mechanism (3.b) from the on state to the off state, in which closed state the inlet of the flow path mechanism (3.b) is located within the valve body (3.e) and the sealing mechanism (3.c) is located between the flow path mechanism (3.b) and the second end of the valve body (3.e) to effect a seal.

2. The device according to claim 1, characterized in that the limit mechanism (3. A) is movably arranged in the valve body (3.e), and that the limit mechanism (3. A) is movable to the first state position, deforming the reset mechanism (3. D) and moving with the flow channel mechanism (3.b) to the on state position; the limit mechanism (3. A) is also movable to a second state position, and the reset mechanism (3. D) is capable of providing a restoring force for the flow path mechanism (3.b) from the on state position to the off state position.

3. The device according to claim 2, wherein the limiting mechanism (3. A) is movably arranged on the valve body (3.e) through a threaded connection structure, and the limiting mechanism (3. A) is movable to a first state position and abuts against the runner mechanism (3.b) to push the runner mechanism to a conducting state position.

4. A device according to claim 3, characterized in that the limiting means (3. A) is provided with a through hole, and the outlet of the flow passage means (3.b) is connected to the first end of the valve body (3.e) for connection to the functional part (1. A) via the through hole.

5. A device according to claim 3, characterized in that the reset mechanism (3. D) comprises: and a spring capable of providing an elastic restoring force to the flow path mechanism (3.b) from the on-state position to the off-state position.

6. The apparatus of claim 1, wherein the sealing mechanism (3.c) comprises: the sealing ring, the entry end outer wall of runner mechanism (3.b) is seted up and is used for installing the ring channel of sealing ring.

7. The device according to claim 1, wherein the inlet of a number of said flow passage means (3.b) is arranged radially along said flow passage means (3.b) and said outlet is arranged axially at the end of said flow passage means (3.b) for cooperation with the first end of said valve body (3.e).

8. The device according to claim 1, characterized in that the limit mechanism (3. A) has a connection profile for a synchronous rotational fit with the functional component (1. A).

9. A pipeline functional component assembly, comprising: functional part (1. A) and a connecting device according to any of claims 1-8.

10. A media system, comprising: a pipe (1. C) and a connection device according to any one of claims 1-8.