CN220060662U - Pipeline assembly - Google Patents

Abstract

The utility model provides a pipeline assembly, which comprises a pipe body forming a fluid channel, a unidirectional mechanism arranged in the fluid channel, at least one limiting piece and a connecting structure enabling the limiting piece to be in plug-in fit with the pipe body, wherein the limiting piece is in plug-in fit with the connecting structure along a first direction, the limiting piece and the unidirectional mechanism are arranged along a second direction forming a certain included angle with the first direction, and at least part of the limiting piece is exposed in the fluid channel so as to limit the unidirectional mechanism to be separated from the fluid channel; after the limiting piece is spliced with the pipe body along the first direction, at least part of the limiting piece is exposed to the fluid channel, so that the one-way mechanism in the fluid channel is limited along the second direction, the limiting piece does not need to extend into the pipe body to operate, and the assembly and the disassembly of the pipeline assembly are facilitated.

Description

Pipeline assembly

Technical Field

The utility model relates to the field of fluid pipelines, in particular to a pipeline assembly.

Background

When the pipeline assembly is designed to function, a unidirectional mechanism is usually built in the pipeline in order to ensure that fluid flows along a fixed direction and prevent the fluid from flowing backwards. In the existing pipeline assembly, in order to avoid the unidirectional mechanism from separating from the pipeline, a clamp spring is embedded in the pipeline, and the unidirectional mechanism is limited by the clamp spring. However, when the clamp spring is installed, the clamp spring needs to be stretched into a pipeline by using clamp spring pliers for operation, and therefore the assembly and the disassembly of the pipeline assembly are complicated.

Disclosure of Invention

The utility model aims to provide a pipeline assembly which is convenient to assemble and disassemble.

In order to achieve one of the above objects, an embodiment of the present utility model provides a pipeline assembly, including a pipe body forming a fluid channel, and a unidirectional mechanism disposed in the fluid channel, where the pipeline assembly further includes at least one limiting member and a connection structure for mating the limiting member with the pipe body in a plugging manner, the limiting member is mated with the connection structure in a first direction, the limiting member and the unidirectional mechanism are disposed in a second direction forming an included angle with the first direction, and at least a portion of the limiting member is exposed in the fluid channel to limit the unidirectional mechanism from being separated from the fluid channel.

As a further improvement of an embodiment of the present utility model, the connecting structure has a first inserting groove and a second inserting groove which are disposed on the pipe body, and the limiting member is elastically abutted against the connecting structure and is at least partially exposed in the first inserting groove and the second inserting groove.

As a further improvement of an embodiment of the present utility model, the limiting piece is elastically abutted against the inner wall of the first inserting groove and is abutted against the second inserting groove.

As a further improvement of an embodiment of the present utility model, the first insertion groove and the second insertion groove are arranged along the first direction.

As a further development of an embodiment of the utility model, the first insertion groove extends through the tubular body in a first direction, and the second insertion groove extends through at least part of the tubular body in the first direction.

As a further improvement of an embodiment of the present utility model, the pipeline assembly further includes a blocking member disposed in the fluid channel and matched with the unidirectional mechanism, the unidirectional mechanism has an inlet end and an outlet end, the blocking member and the limiting member are disposed on two sides of the unidirectional mechanism along the second direction, and the limiting member abuts against the inlet end of the unidirectional mechanism.

As a further improvement of an embodiment of the present utility model, the limiting member has an annular structure with an opening to form an open end and a closed end, and the limiting member has a supporting portion abutting against the inner wall of the first plugging slot and a plugging portion at least partially exposed in the second plugging slot, the supporting portion protrudes from the open end along the radial direction of the annular structure, and the plugging portion protrudes from the closed end along the radial direction of the annular structure.

As a further improvement of an embodiment of the present utility model, the abutting portion includes a first bending angle and a second bending angle which are oppositely disposed, the limiting member further includes a first limiting portion connecting the first bending angle and the plugging portion, and a second limiting portion connecting the second bending angle and the plugging portion, a maximum distance between the first limiting portion and the second limiting portion is greater than a groove width of the first plugging groove and a groove width of the second plugging groove along a third direction, the groove width of the first plugging groove along the third direction is greater than the groove width of the second plugging groove along the third direction, and the third direction is perpendicular to the first direction and the second direction, respectively.

As a further improvement of one embodiment of the present utility model, the limiting member is integrally formed, the first bending angle and the second bending angle are symmetrical with respect to a symmetry line of the plugging portion, and the first limiting portion and the second limiting portion are symmetrical with respect to the symmetry line of the plugging portion.

As a further improvement of an embodiment of the present utility model, the pipe body includes a first pipe forming a fluid channel and a second pipe sealing-connected to the first pipe, the first pipe has a first abutting portion forming a connection structure, the second pipe has a second abutting portion matching with the first abutting portion, the first abutting portion and the second abutting portion are spaced apart, and at least part of the limiting member protrudes from a radial end surface of the first abutting portion and is exposed in the second abutting portion.

Compared with the prior art, in the embodiment of the utility model, after the limiting piece is spliced with the pipe body along the first direction, at least part of the limiting piece is exposed to the fluid channel, so that the unidirectional mechanism in the fluid channel is limited along the second direction, and the unidirectional mechanism does not need to extend into the pipe body to operate, thereby facilitating the assembly and disassembly of the pipeline assembly.

Drawings

FIG. 1 is an exploded view of a piping assembly in accordance with a preferred embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the piping assembly of FIG. 1;

FIG. 3 is a schematic plan view of a stop member in a preferred embodiment of the utility model;

FIG. 4 is a schematic perspective view of a piping component in accordance with another preferred embodiment of the present utility model;

FIG. 5 is an exploded view of the piping assembly of FIG. 4;

FIG. 6 is a cross-sectional view taken at A-A in FIG. 4.

Detailed Description

The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Moreover, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by the above terms. The above terms are used only to distinguish these descriptive objects from each other. For example, a first mating groove may be referred to as a second mating groove, and likewise, a second mating groove may be referred to as a first mating groove, without departing from the scope of this application.

Referring to fig. 1 to 6, a preferred embodiment of the present utility model provides a piping assembly capable of achieving unidirectional fluid transport. The line assembly is preferably used in a beverage machine, in particular a fluid line for a coffee machine.

Specifically, referring to fig. 1 and 2, a pipe assembly according to a preferred embodiment of the present utility model includes a pipe body 10 forming a fluid passage 11 and a unidirectional mechanism 20 disposed in the fluid passage 11. In this embodiment, the fluid to be conveyed enters the fluid channel 11 through the inlet of the pipe body 10, and after passing through the unidirectional mechanism 20, the fluid flows out from the outlet of the pipe body 10. Fluid flowing through the unidirectional mechanism 20 can only flow in a single direction and cannot flow back or reverse.

Specifically, with continued reference to FIG. 2, the unidirectional mechanism 20 has an inlet end 20a and an outlet end 20b. In this embodiment, the unidirectional mechanism 20 is preferably integrated, i.e., the unidirectional mechanism 20 is assembled with the tube body 10 as a whole. Fluid can only flow into the unidirectional mechanism 20 from the inlet end 20a and out from the outlet end 20b, but cannot flow into the unidirectional mechanism 20 from the outlet end 20b and out from the inlet end 20 a.

Of course, in other embodiments, the unidirectional mechanism 20 may be combined, i.e., multiple components of the unidirectional mechanism 20 are respectively mounted in cooperation with the tube 10.

Further, the pipeline assembly further comprises at least one limiting piece 30 and a connecting structure enabling the limiting piece 30 to be in plug-in fit with the pipe body 10. In this embodiment, the number of the limiting members 30 may be one or more, and each limiting member 30 is in plug-in fit with the tube body 10 through a connection structure.

Specifically, the limiting member 30 is in plug-in fit with the connecting structure along the first direction, and the limiting member 30 and the unidirectional mechanism 20 are arranged along the second direction which forms a certain included angle with the first direction. In this embodiment, the first direction and the second direction are preferably perpendicular to each other. The second direction may be along the axial direction of the fluid channel 11 and the first direction may be along the radial direction of the fluid channel 11. When the limiting piece 30 is spliced with the connecting structure along the first direction, the limiting piece 30 does not need to extend into the fluid channel 11 along the second direction to operate, and the operation space is large when the limiting piece 30 is installed and detached, so that the limiting piece 30 is convenient to install and detach.

In addition, the relative position between the stopper 30 and the unidirectional mechanism 20 may be selected according to the need, for example, when it is required to prevent the unidirectional mechanism 20 from being pushed forward, the stopper 30 may be disposed downstream of the unidirectional mechanism 20, that is, the stopper 30 is opposite to the outlet end 20b of the unidirectional mechanism; when it is desired to prevent the reverse flow from pushing the unidirectional mechanism 20 to move, the stopper 30 may be disposed upstream of the unidirectional mechanism 20, i.e., the stopper 30 is opposite the inlet end 20a of the unidirectional mechanism.

Further, at least a portion of stop 30 is exposed within fluid channel 11 to limit the escape of unidirectional mechanism 20 from fluid channel 11. In this embodiment, after the limiting member 30 is inserted into the tube body 10, a portion of the limiting member 30 is exposed in the fluid channel 11, so as to limit the unidirectional mechanism 20 from being separated from the fluid channel 11 from the limiting member 30, i.e. limit the unidirectional mechanism 20 from being separated from the fluid channel 11 along the direction toward the limiting member 30. The portion of the stopper 30 exposed in the fluid channel 11 may abut against the unidirectional mechanism 20, or may be spaced from the unidirectional mechanism 20.

After the limiting piece 30 is spliced with the pipe body 10 along the first direction, at least part of the limiting piece 30 is exposed to the fluid channel 11, so that the unidirectional mechanism 20 in the fluid channel 11 is limited along the second direction, and the pipe body 10 is not required to be stretched into for operation, so that the assembly and the disassembly of the pipeline assembly are facilitated.

Specifically, the connecting structure has a first inserting groove 41 and a second inserting groove 42 disposed on the pipe body 10, and the limiting member 30 is elastically abutted against the connecting structure and at least partially exposed in the first inserting groove 41 and the second inserting groove 42.

In this embodiment, the limiting member 30 is elastically abutted against the connecting structure, that is, the limiting member 30 is elastically abutted against the first inserting groove 41 and/or the second inserting groove 42, so as to limit the offset between the limiting member 30 and the pipe body 10 along the first direction, and avoid detachment from the pipe body 10. At least part of the limiting piece 30 is exposed in the first inserting groove 41 and the second inserting groove 42, namely, the limiting piece 30 simultaneously stretches into the first inserting groove 41 and the second inserting groove 42, so that the limiting piece 30 and the pipe body 10 are limited to deviate along the second direction, deflection of the limiting piece 30 after being stressed can be avoided, and stability of the limiting piece 30 and the pipe body 10 after being inserted and matched is improved. In addition, the stopper 30 and the pipe 10 cannot rotate relative to each other.

Specifically, the limiting member 30 elastically abuts against the inner wall of the first inserting groove 41 and abuts against the second inserting groove 42. In this embodiment, the limiting member 30 elastically abuts against one of the plugging slots (i.e. the first plugging slot 41) of the connection structure, and abuts against the other plugging slot (i.e. the second plugging slot 42). Therefore, the fitting strength between the limiting piece 30 and the pipe body 10 is ensured, the limiting piece 30 is prevented from being separated from the pipe body 10, and the installation and the disassembly of the limiting piece 30 are also facilitated.

Of course, in other embodiments, the limiting member 30 may also simultaneously elastically abut against two plugging slots of the connection structure.

Further, the first plugging groove 41 and the second plugging groove 42 are arranged along the first direction. In this embodiment, as shown in fig. 1, when the limiting member 30 is inserted along the first direction, the limiting member extends into the first insertion slot 41 and the second insertion slot 42 in sequence, so that the installation is convenient. Moreover, the first inserting groove 41 and the second inserting groove 42 are oppositely arranged at two sides of the fluid channel 11, so that the matching strength between the limiting piece 30 and the pipe body 10 is higher, and the unidirectional mechanism 20 is more stably limited.

Specifically, the first insertion groove 41 penetrates the pipe body 10 along the first direction, and the second insertion groove 42 penetrates at least part of the pipe body 10 along the first direction. In this embodiment, as shown in fig. 1, the first inserting groove 41 adopts a through hole structure, so that a part of the limiting member 30 passes through and then extends into the second inserting groove 42. The second plugging slot 42 may be a blind hole or a through hole structure, preferably a through hole structure, so as to facilitate processing.

Further, the tubing assembly also includes a stop 50 disposed within the fluid passageway 11 and mated with the unidirectional mechanism 20. In this embodiment, as shown in fig. 2, the resisting member 50 is preferably integrally formed with the pipe body 10, that is, the resisting member 50 is a part of the pipe body 10 and may be a stepped surface of the pipe body 10 protruding into the fluid channel 11.

Of course, in other embodiments, the blocking member 50 may be connected to the body 10 as a separate member so as to protrude within the fluid passage 11.

Specifically, the resisting member 50 and the limiting member 30 are disposed opposite to each other along the second direction on two sides of the unidirectional mechanism 20. In this embodiment, the tubing assembly preferably has a stop 30. The check member 30 and the stopper 50 disposed opposite to each other on both sides of the check member 20 are used to prevent the check member 20 in the fluid passage 11 from being separated from the fluid passage in the second direction. Compared with the scheme of limiting the unidirectional mechanism 20 through two or more limiting pieces 30, the number of the limiting pieces 30 is reduced, so that the pipeline assembly is convenient to assemble.

Of course, in other embodiments, the conduit assembly may have more than one stop 30, such as two stops 30 disposed opposite sides of the unidirectional mechanism 20.

Specifically, the stopper 30 abuts against the inlet end 20a of the unidirectional mechanism 20. In this embodiment, the abutment 50 abuts against the outlet end 20b of the unidirectional mechanism 20, thereby avoiding the unidirectional mechanism 20 from being displaced in the second direction within the fluid passage 11. Moreover, in most cases, the fluid in the fluid channel 11 will flow along the conducting direction of the unidirectional mechanism 20, and the resisting member 50 will abut against the outlet end 20b of the unidirectional mechanism 20, so that in most cases, the resisting member 50 is subjected to the force of the unidirectional mechanism 50, thereby reducing the deformation or loosening of the limiting member 30. In rare cases, the fluid in the fluid channel 11 flows in a direction opposite to the conduction direction of the unidirectional mechanism 20, that is, the fluid is in a countercurrent state, and at this time, the stopper 30 abutting against the inlet end 20a of the unidirectional mechanism 20 can limit the displacement or loosening of the unidirectional mechanism 20.

Specifically, with reference to fig. 3, the stopper 30 has an annular structure with an opening to form opposite open ends 30a and closed ends 30b. In this embodiment, the stopper 30 is preferably made of an elastic material so as to generate an elastic deformation force when the size of the opening is changed.

Further, the limiting member 30 has a supporting portion 31 abutting against the inner wall of the first inserting groove 41 and an inserting portion 32 at least partially exposed in the second inserting groove 42, the supporting portion 31 protrudes from the opening end 30a along the radial direction of the annular structure, and the inserting portion 32 protrudes from the closing end 30b along the radial direction of the annular structure. In the present embodiment, the retainer 30 having an annular structure generates an elastic deformation force by expanding or contracting the opening end 30a, and the abutting portion 31 is disposed at the opening end 30a in a protruding manner, so that the retainer can be elastically abutted against the inner wall of the first insertion groove 41 by the elastic deformation force. The inserting portion 32 is protruded at the closed end 30b opposite to the open end 30a, so that the structural strength of the limiting member 30 can be improved, and the deformation force of the limiting member 30 after deformation can be increased. After the insertion portion 32 extends into the second insertion groove 42, the stopper 30 can be restricted from being shifted in the second direction.

Wherein radial of the annular structure is used in particular with reference to the generally circular and cylindrical shape of the stop 30 of the annular structure shown, in the sense that "radial" refers to a direction generally along or parallel to an imaginary radius of the circular and cylindrical shape. The radial direction of the annular structure is substantially parallel or collinear with the radial direction of the annular structure, that is, may be parallel or collinear with the radial direction of the annular structure or may be at an angle to the radial direction of the annular structure.

Furthermore, the plugging portion 32 in the present embodiment has a tapered structure, that is, the width of the plugging portion 32 gradually decreases from the center of the stopper 30 toward the direction away from the center. The mating portion 32 is preferably circular in shape to facilitate mating with the second mating groove 42. Of course, the plugging portion 32 may be provided in an elongated structure.

Specifically, the abutment 31 includes a first bending angle 311 and a second bending angle 312 disposed opposite to each other. In this embodiment, the first bending angle 311 and the second bending angle 312 are both in a circular arc hook structure and relatively turned outwards, so as to be more stably abutted against the first inserting groove 41.

Specifically, the limiting member 30 further has a first limiting portion 33 connecting the first bending angle 311 and the plugging portion 32, and a second limiting portion 34 connecting the second bending angle 312 and the plugging portion 32. In this embodiment, the first limiting portion 33 and the second limiting portion 34 are both arc-shaped, so that a part of the limiting member 30 passes through the first inserting groove 41.

The third direction is perpendicular to the first direction and the second direction, respectively. For easy understanding, the first, second and third directions are respectively corresponding to the coordinate systems in fig. 1 and 2, the first direction is the X-axis direction, the second direction is the Y-axis direction, the third direction is the Z-axis direction, and the three directions are perpendicular to each other.

Further, the maximum distance between the first limiting portion 33 and the second limiting portion 34 is greater than the groove widths of the first inserting groove 41 and the second inserting groove 42 along the third direction. In the present embodiment, the maximum distance between the first limiting portion 33 and the second limiting portion 34 is the maximum distance between the first limiting portion 33 and the second limiting portion 34 along the third direction.

The maximum distance between the first limiting part 33 and the second limiting part 34 is greater than the groove width of the first inserting groove 41 along the third direction, so that the first limiting part 33 and the second limiting part 34 of the limiting piece 30 need to be pressed when passing through the first inserting groove 41, the opening size of the limiting piece 30 is reduced, the limiting piece 30 is forced to elastically deform, and accordingly elastic deformation force is provided for the abutting part 31 after the first limiting part 33 and the second limiting part 34 of the limiting piece 30 pass through the first inserting groove 41, and the abutting part 31 is elastically abutted against the first inserting groove 41. Further, the stopper 30 can be restricted from being separated from the pipe body 10 in the first direction.

The maximum distance between the first limiting part 33 and the second limiting part 34 is larger than the groove width of the second inserting groove 42 along the third direction, after the inserting part 32 extends into the second inserting groove 42, the limiting part 30 can be prevented from being inserted continuously along the first direction, excessive insertion is avoided, and the limiting part 30 can be prevented from being separated from the pipe body 10 along the first direction.

Further, the groove width of the first plugging groove 41 along the third direction is larger than the groove width of the second plugging groove 42 along the third direction. In the present embodiment, the maximum width of the plugging portion 32 along the third direction is smaller than the slot width of the second plugging slot 42 along the third direction, so that the plugging portion 32 can smoothly pass through the first plugging slot 41 and extend into the second plugging slot 42.

Specifically, the stopper 30 is integrally formed. In this embodiment, the stopper 30 is processed by bending.

Further, the first bending angle 311 and the second bending angle 312 are symmetrical with respect to a symmetry line of the plugging portion 32, and the first limiting portion 33 and the second limiting portion 34 are symmetrical with respect to a symmetry line of the plugging portion 32. In this embodiment, the plugging portion 32 has a symmetrical circular arc structure. The whole limiting piece 30 is of a symmetrical C-shaped structure, so that the manufacturing cost is saved, and the mounting is not easy to be misplaced.

Further, at least part of the stopper 30 protrudes from the radial end surface of the tube body 10. In this embodiment, after the limiting member 30 is inserted into the pipe body 10, a portion of the supporting portion 31 protrudes from a radial end surface of the pipe body 10, that is, a portion of the first bending angle 311 and/or the second bending angle 312 with hook-shaped structures protrudes from the radial end surface of the pipe body 10, so that the supporting portion 31 is more stably and elastically supported against the pipe body 10, the matching strength of the limiting member 30 and the pipe body 10 is improved, and the limiting strength of the limiting member 30 to the unidirectional mechanism 20 is also improved. In addition, when the abutting portion 31 and/or the plugging portion 32 protrude from the radial end surface of the pipe body 10, the spacing piece 30 is further convenient to detach from the pipe body 10.

Of course, in other embodiments, the abutting portion 31 and/or the plugging portion 32 may not protrude from the radial end surface of the tube body 10.

Referring to fig. 4 to 6, another preferred embodiment of the present utility model provides a piping assembly. The piping assembly changes the structure of the pipe body 10 compared to the above-described embodiment, thereby sealing the connection structure and thus preventing the fluid in the fluid passage 11 from leaking out of the pipe body 10. Like reference numerals in this embodiment denote like elements with similar functions, and will not be repeated.

Specifically, as shown in fig. 4 and 5, the tube body 10 includes a first tube 101 forming the fluid passage 11 and a second tube 102 sealingly connected to the first tube 101. In this embodiment, the first tube 101 and the second tube 102 are in sealing engagement with each other by a rotary fit.

Specifically, as shown in fig. 6, the first pipe 101 has a first butt joint portion 101a forming a connection structure, and the second pipe 102 has a second butt joint portion 102a that matches the first butt joint portion 101 a. In this embodiment, the first inserting groove 41 and the second inserting groove 42 are disposed on the first abutting portion 101a, and the resisting member 50 is a step surface formed on the first abutting portion 101 a. After the one-way mechanism 20 performs interference fit with the first pipe 101 by using the sealing ring, the limiting piece 30 is inserted into the first abutting portion 101a, and then the first pipe 101 is abutted with the second pipe 102, so that fluid is prevented from leaking out of the pipe body 10 at the connecting structure.

Specifically, the first insertion groove 41 penetrates the pipe body 10 along the first direction, and the second insertion groove 42 penetrates at least part of the pipe body 10 along the first direction. In this embodiment, as shown in fig. 5, the first inserting groove 41 penetrates through the first abutting portion 101a along the first direction, and the first inserting groove 41 adopts a through hole structure, so that a part of the limiting member 30 is convenient to penetrate through and then extends into the second inserting groove 42. The second plugging groove 42 penetrates at least part of the first butt joint part 101a along the first direction, and the second plugging groove 42 can adopt a blind hole or a through hole structure, preferably adopts a through hole structure, so that the processing is convenient.

Specifically, the first abutting portion 101a and the second abutting portion 102a are disposed at intervals, and at least a portion of the limiting member 30 protrudes from a radial end surface of the first abutting portion 101a and is exposed in the second abutting portion 102a. In this embodiment, after the limiting member 30 is inserted into the first abutting portion 101a, a portion of the abutting portion 31 protrudes from a radial end surface of the first abutting portion 101a, that is, the first bending angle 311 and/or the second bending angle 312 with hook-shaped structures protrudes from the radial end surface of the first abutting portion 101a, so that the abutting portion 31 is elastically abutted against the first abutting portion 101a more stably, the matching strength of the limiting member 30 and the first abutting portion 101a is improved, and the limiting strength of the limiting member 30 to the unidirectional mechanism is improved. In addition, when the abutting portion 31 and/or the plugging portion 32 protrude from the radial end surface of the first abutting portion 101a, the spacing member 30 is further convenient to detach from the first abutting portion 101 a. After the first pipe 101 is connected with the second pipe 102, the first butt joint part 101a and the second butt joint part 102a are arranged at intervals to form an interval space, so that a yielding position is provided for the limiting piece 30 protruding from the radial end surface of the first butt joint part 101a, and interference is avoided when the first pipe 101 is in butt joint with the second pipe 102.

Of course, in other embodiments, the abutting portion 31 and/or the plugging portion 32 may not protrude from the radial end surface of the first abutting portion 101 a.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a pipeline subassembly, includes the body that forms the fluid channel and sets up the unidirectional mechanism in the fluid channel, its characterized in that, pipeline subassembly still includes at least one locating part and makes locating part and body grafting complex connection structure, locating part and connection structure grafting complex along first direction, locating part and unidirectional mechanism arrange the setting along the second direction that is certain contained angle with first direction, at least part of locating part exposes in the fluid channel to restrict unidirectional mechanism and break away from the fluid channel.

2. The piping component of claim 1, wherein the connection structure has a first insertion groove and a second insertion groove provided on the pipe body, and the limiting member is elastically abutted against the connection structure and at least partially exposed in the first insertion groove and the second insertion groove.

3. The piping component of claim 2, wherein the limiting member elastically abuts against the inner wall of the first insertion groove and abuts against the second insertion groove.

4. The conduit assembly of claim 2, wherein the first and second mating grooves are aligned along a first direction.

5. The conduit assembly of claim 2, wherein the first socket extends through the tube body in a first direction and the second socket extends through at least a portion of the tube body in the first direction.

6. The line assembly of claim 1 further comprising a stop disposed within the fluid passageway and mated with the unidirectional mechanism, the unidirectional mechanism having an inlet end and an outlet end, the stop being disposed opposite sides of the unidirectional mechanism along the second direction with a stop, the stop abutting the inlet end of the unidirectional mechanism.

7. The piping component of claim 2, wherein said stopper has an annular structure with an opening to form opposite open and closed ends, said stopper has a holding portion abutting against the inner wall of the first insertion groove and an insertion portion at least partially exposed in the second insertion groove, said holding portion protruding in the radial direction of the annular structure at the open end, said insertion portion protruding in the radial direction of the annular structure at the closed end.

8. The piping component of claim 7, wherein the supporting portion comprises a first bending angle and a second bending angle which are oppositely arranged, the limiting piece further comprises a first limiting portion connecting the first bending angle and the plugging portion, and a second limiting portion connecting the second bending angle and the plugging portion, a maximum distance between the first limiting portion and the second limiting portion is larger than a groove width of the first plugging groove and the second plugging groove along a third direction, the groove width of the first plugging groove along the third direction is larger than the groove width of the second plugging groove along the third direction, and the third direction is mutually perpendicular to the first direction and the second direction respectively.

9. The line assembly of claim 8, wherein the stop member is integrally formed, the first and second bend angles are symmetrical with respect to a line of symmetry of the mating portion, and the first and second stop portions are symmetrical with respect to a line of symmetry of the mating portion.

10. The piping component of claim 1, wherein said pipe body comprises a first pipe forming a fluid passage and a second pipe sealing-connected to the first pipe, said first pipe having a first abutting portion forming a connecting structure, said second pipe having a second abutting portion matching the first abutting portion, said first abutting portion being spaced from the second abutting portion, and at least part of said stopper protruding from a radial end face of the first abutting portion and being exposed in the second abutting portion.