CN214093472U

CN214093472U - One-way stop joint

Info

Publication number: CN214093472U
Application number: CN202022782752.1U
Authority: CN
Inventors: 罗英哲; 吴志坤; 徐正杰; 李扬眉; 李圣明; 马晨光
Original assignee: Shanghai Chinaust Automotive Plastics Corp ltd
Current assignee: Shanghai Chinaust Automotive Plastics Corp ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-08-31
Anticipated expiration: 2030-11-26

Abstract

The application discloses a one-way stop joint, which comprises a first pipe connecting piece, the first pipe connecting piece is used for communicating an inlet and a connecting port of a pipeline, a first channel is formed between the inlet and the connecting port by the first pipe connecting piece, an outlet and a connecting port which are used for communicating another pipeline are formed by the second pipe connecting piece, a second channel is formed between the outlet and the connecting port by the second pipe connecting piece, the stopping component comprises an elastic piece and a stopping component, the elastic piece is provided with a free end and a static end, the stopping component is sleeved in the first pipe connecting piece in an axially sliding mode, the stopping component comprises a movable sealing piece and a static sealing piece, the movable sealing piece forms a movable sealing wall, the static sealing piece forms a static sealing wall which is mutually attached to the movable sealing wall, the static sealing piece is fixed in the first channel, and the movable sealing piece is pressed against the free end of the elastic piece in an axially sliding mode.

Description

One-way stop joint

Technical Field

The utility model relates to a connect, especially relate to an one-way logical joint that ends.

Background

With the continuous development of science and technology, various machine equipment is continuously emerged. Especially various power supply devices such as engines, batteries, etc.

The new energy automobile is applied more and more widely nowadays. And the connecting pipeline system is an important component of fluid circulation in the new energy automobile. The connecting pipeline system can enable the new energy automobile to execute a preset mechanical action by controlling the flow direction of the fluid.

And sometimes the connecting piping system requires replacement of the piping assembly. In the process of replacement, in order to prevent the short circuit of the circuit caused by liquid leakage, a one-way stop joint is developed. The user can realize the blocking and the conduction of the fluid by operating the one-way stop joint. Therefore, when the connecting pipeline system needs to be replaced, the fluid can be blocked by operating the one-way stop joint, and the fluid is prevented from leaking in the replacement process. And after the replacement is finished, the one-way stop joint is continuously operated to further realize the conduction of the fluid.

However, the existing one-way stop joint is expensive, heavy in weight, large in flow resistance and not suitable for an automobile system. In addition, in the field of new energy vehicles, particularly fuel cell-capable new energy vehicles, since the hydrogen fuel system bipolar plates generate a large amount of electric ions which cannot circulate in the coolant, the adsorption of the electric ions is required. In the prior art, a deionizer is usually arranged in the flow direction of the fluid. The deionizers are expensive and not easy to install.

In addition, the one-way stop joint in the prior art is quite complex in the switching between the blocking state and the conducting state, needs other tools and cannot be operated by one hand. In addition, one-way only leads to and connects when blocking state and on-state conversion among the prior art, need dismantle one-way only leads to the spare part that connects, and the process of dismantling is very hard moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an one-way only leads to and connects, wherein one-way only leads to and connects can be in a state of permitting the fluid circulation and block a state of blocking that the fluid flows through and change between to at the in-process of conversion, the user need not to dismantle one-way only leads to and connects.

Another object of the utility model is to provide an one-way only leads to and connects, wherein the user only needs one-hand operation one-way only leads to and connects, just can realize with one-way only leads to and connects and convert the blocking state.

In order to realize the utility model discloses above at least one purpose, the utility model provides an one-way only leads to and connects for two pipelines of butt joint, wherein one-way only leads to and connects and include:

a first junction element defining an inlet for communicating with a conduit and a connection port, wherein the first junction element defines a first passageway between the inlet and the connection port;

a second pipe fitting forming an outlet and a communication port for communicating with another pipe, wherein the second pipe fitting forms a second passage between the outlet and the communication port;

a no-go assembly, wherein the no-go assembly comprises:

an elastic member having a free end and a stationary end; and

a stop member axially slidably received in the first pipe fitting, the stop member including a dynamic seal and a static seal, the dynamic seal forming a dynamic seal wall, the static seal forming a static seal wall in contact with the dynamic seal wall, the static seal being fixed to the first passage, the dynamic seal being axially slidably pressed against the free end of the elastic member, the static end of the elastic member being statically held in the first passage, when the second pipe fitting is inserted into the first passage from the communication port of the first pipe fitting, one end of the dynamic seal being pressed against and slid by an end of the second pipe fitting, the elastic member being compressed to axially slide the dynamic seal wall of the dynamic seal relative to the static seal wall of the static seal, and a flow port communicating with the first passage and the second passage is formed between the static seal wall and the dynamic seal wall.

According to an embodiment of the present invention, the movable sealing member has a cylindrical bottom wall and a circumferential side wall extending upward from a circumferential edge of the cylindrical bottom wall to form a sliding cavity with the cylindrical bottom wall, a mounting opening communicating with the sliding cavity is formed at a top portion of the circumferential side wall, the cylindrical bottom wall is provided with a cylindrical hole, the static sealing member has a special-shaped column, a butting platform extending from a top surface of the special-shaped column in a cross-sectional direction, and a sealing column extending from a bottom surface of the special-shaped column, the static end of the elastic member is pressed against a bottom surface of the butting platform, the free end of the elastic member is pressed against a top surface of the cylindrical bottom wall of the movable sealing member, at least one gap is formed between the bottom surface of the special-shaped column and the top surface of the butting platform, the gap is communicated with the first channel, the sealing column of the static sealing member is inserted into the cylindrical hole after passing through the sliding cavity from the mounting opening, when the dynamic sealing element slides along the axis, the sealing column and the columnar hole are staggered with each other, so that the notch forms the flow port communicated with the second channel.

According to an embodiment of the present invention, the movable sealing member has a cylindrical bottom wall and a circumferential side wall extending upward from a circumferential edge of the cylindrical bottom wall to form a sliding chamber with the cylindrical bottom wall, a mounting opening communicating with the sliding chamber is formed at a top portion of the circumferential side wall, the cylindrical bottom wall is provided with a cylindrical hole, the static sealing member has a special-shaped column, an abutting table extending from a top surface of the special-shaped column in a cross-sectional direction, and a sealing column extending from a bottom surface of the special-shaped column, the static end of the elastic member is pressed against a bottom surface of the abutting table, the free end of the elastic member is pressed against a top surface of the cylindrical bottom wall of the movable sealing member, an inner wall of the cylindrical hole formed in the cylindrical bottom wall is provided with at least one notch, the notch is communicated with the first passage, the sealing column of the static sealing member is sleeved in the cylindrical hole after passing through the sliding chamber from the mounting opening, when the dynamic sealing element slides along the axis, the sealing column and the columnar hole are staggered with each other, so that the notch forms the flow port communicated with the second channel.

According to the utility model discloses an embodiment, one-way only leads to and connects includes a locking subassembly, wherein the locking subassembly is set firmly in first pipe connector, wherein the second pipe connector is inserted first passageway, just move the sealing member move the seal wall for the static seal wall along the axially staggered ground slip, and the static seal wall with move between the seal wall form communicate in first passageway with when the circulation mouth of second passageway, the second pipe connector by the locking subassembly locking.

According to an embodiment of the present invention, the locking assembly comprises a locking collar, the outer wall of the connecting port of the first pipe connecting member extends radially to form a mounting edge, the installation is provided with at least one pair of clamping windows along the radial direction, the lock hoop is provided with a lock hoop main body and a pair of elastic arms integrally extending from the lock hoop main body, a clasping opening is formed between the two elastic arms, the mounting rim further forms an insertion passage in a radial direction, the insertion passage being communicated with the pair of card windows, the lock collar being configured to be inserted from the insertion passage, when the lock hoop is inserted, the elastic arms of the lock hoop are radially contracted under the extrusion of the inner wall of the insertion channel, and when the lock collar is inserted into the insertion channel for a preset depth, the pair of elastic arms rebound and are clamped in the pair of clamping windows, so that the clasping opening formed by the lock collar is kept near the connecting opening. The outer wall of the end part of the second pipe connecting piece, which forms the communication port, forms an annular clamping edge, when one end of the second pipe connecting piece, which forms the communication port, is inserted into the first channel from the connecting port, the annular clamping edge is pressed and held on the elastic arm of the connecting port accessory, so that the holding port is expanded, and the elastic arm is expanded by the annular clamping edge as one end of the second pipe connecting piece, which forms the communication port, is continuously inserted into the first channel, and the elastic arm is limited to move back after passing over the annular clamping edge.

According to the utility model discloses an embodiment, the locking subassembly the inner wall of elastic arm has a card protruding, the card protruding along the axial to the roof of elastic arm extends and forms an upper guide surface.

According to an embodiment of the present invention, the locking protrusion extends along the axial direction to the bottom wall of the elastic arm to form a lower guide surface.

According to the utility model discloses an embodiment, one-way logical joint that ends includes a first sealing member, the second connects to form on the pipe fitting the outer wall of intercommunication mouth sets up a mounting groove, first sealing member be installed in the mounting groove.

According to an embodiment of the present invention, the one-way stop joint comprises a second sealing member, the circumferential side wall of the movable sealing member is provided with an annular groove for sleeving the sealing member, so that the movable sealing member maintains the sealing between the movable sealing member and the inner wall of the first pipe connecting member in the process of axial sliding.

According to the utility model discloses an embodiment, one-way logical joint that ends includes a third sealing member, quiet sealing member the outer wall of sealed post sets up one set of groove that connects for cup joint the third sealing member, so that quiet sealing wall with move the sealing wall and laminate each other and keep sealed the time.

Further objects and advantages of the invention will be fully apparent from the ensuing description.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.

Drawings

Figure 1 shows a perspective view of the one-way stop-go joint of the present invention.

Fig. 2 shows an exploded view of the one-way stop joint of the present invention.

Fig. 3 shows an exploded view of a part of the structure of the one-way stop joint of the present invention.

Figure 4 shows a cross-sectional view of an angle of the one-way no-go joint of the present invention.

Fig. 5 shows a schematic view of the dynamic sealing element and the static sealing element of the one-way stop joint of the present invention when sealing each other.

Fig. 6 shows a schematic view of the dynamic sealing element and the static sealing element of the one-way stop joint of the present invention when they are staggered.

Fig. 7 shows an exploded view of the dynamic and static seals of the one-way check joint of the present invention.

Detailed Description

The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

A one-way no-go joint 100 according to a preferred embodiment of the present invention will be described in detail below with reference to fig. 1-7 of the drawings, wherein the one-way no-go joint 100 can be used to connect at least two pipes. The one-way check connector 100 is capable of switching between a conducting state that allows fluid communication and a blocking state that blocks fluid flow, and during the conversion process, the user does not need to disassemble the one-way check connector.

Specifically, the one-way stop-go coupling 100 includes a first fitting 10, a second fitting 20, a stop-go assembly 30, and a locking assembly 40.

The first connecting piece 10 forms an inlet 101 and a connecting opening 102, wherein the first connecting piece 10 forms a first channel 1001 between the inlet 101 and the connecting opening 102. The second connecting piece 20 forms an outlet 201 and a communication opening 202, wherein the second connecting piece 20 forms a second channel 2001 between the outlet 201 and the communication opening 202.

The communication port 202 of the second joint member 20 is inserted into the first passage 1001 from the connection port 102, so that the first passage 1001 of the first joint member 10 and the second passage 2001 of the second joint member 20 communicate.

It is worth mentioning that the inlet 101 of the first pipe connection part 10 can be connected to a pipe. The outlet 201 of the second adapter 20 can be connected to another pipe. In this way, the conduit communicating with the inlet 101 and the conduit communicating with the outlet 201 can communicate with each other through the one-way no-go joint 100.

The locking assembly 40 is configured to lock the second fitting 20 inserted into the first passage 1001 to the first fitting 10.

Specifically, in the present embodiment, the locking assembly 40 includes a locking band 41. The outer wall of the connection port 102 of the first pipe joint member 10 extends radially to form a mounting rim 11. The mounting is provided with at least one pair of snap windows 1102 in the radial direction 11. The lock band 41 has a lock band body 411 and a pair of elastic arms 412 integrally extending from the lock band body 411. A clasping opening 41201 is formed between the two elastic arms 412.

The mounting rim 11 further defines an insertion passage 1101 in the radial direction. The insertion channel 1101 is communicated with the pair of chucking windows 1102. The locking clip 41 is configured to be inserted from the insertion channel 1101, and when the locking clip 41 is inserted, the elastic arms 412 of the locking clip 41 are radially contracted by being pressed by the inner wall of the insertion channel 1101, and when the locking clip 41 is inserted into the insertion channel 1101 to a predetermined depth, the pair of elastic arms 412 are rebounded and caught in the pair of catching windows 1102, so that the catching opening 41201 formed by the locking clip 41 is maintained near the connection opening 102.

The outer wall of the end of the second pipe fitting 20 where the communication port 202 is formed forms an annular retaining edge 203. When the end of the second adapter member 20 where the communication port 202 is formed is inserted into the first passage 1001 from the connection port 102. The annular retaining rim 203 presses against the elastic arms 412 retained near the connection port 102, so that the clasping opening 41201 is enlarged, and as the end of the second pipe connecting element 20 on which the communication opening 202 is formed is continuously inserted into the first passage 1001, the elastic arms 412 are spread apart by the annular retaining rim 203, and the elastic arms 412 are restricted from moving back beyond the annular retaining rim 203. Thereby, the second pipe joint 20 can be caught to the first pipe joint 10 by the locking band 41 of the locking assembly 40 to communicate the first passage 1001 and the second passage 2001.

Preferably, the inner wall of the resilient arm 412 of the locking assembly 40 has a locking protrusion 4121, wherein the locking protrusion 4121 extends axially toward the top wall of the resilient arm 412 to form an upper guide surface 401, and wherein the locking protrusion 4121 extends axially toward the bottom wall of the resilient arm 412 to form a lower guide surface 402.

It should be noted that when the second adapter 20 is inserted into the first channel 1001 and presses against the elastic arm 412, the upper guide surface 401 can guide the annular retaining rim 203 to pass over the clasping opening 41201. When the second adapter member 20 is pulled out of the first passage 1001, the lower guide surface 402 can guide the annular lip 203 over the clasping opening 41201.

It is worth one piece that the one-way check joint 100 includes a first seal 50. An installation groove 204 is formed on the outer wall of the second pipe fitting 20 where the communication port 202 is formed. The first sealing member 50 is mounted to the mounting groove 204. When the second fitting 20 is snapped to the first fitting 10 by the locking collar 41 of the locking assembly 40, the first seal 50 is sealingly retained between the inner wall of the first fitting 10 and the outer wall of the second fitting 20 that form the first passageway 1001. Therefore, when fluid flows between the first passage 1001 and the second passage 2001, the fluid does not flow out from between the inner wall of the first fitting 10 and the outer wall of the second fitting 20.

The stop-pass assembly 30 includes a stop-pass member 31 and a resilient member 32. The stop member 31 forms a sealing surface 3101. The through stop member 31 is fitted inside the first passage 1001 of the first pipe fitting 10, and the sealing surface 3101 of the through stop member 31 and the inner wall of the first pipe fitting 10 forming the first passage 1001 are relatively sealed to prevent fluid from leaking between the sealing surface 3101 of the through stop member 31 and the inner wall of the first pipe fitting 10 forming the first passage 1001.

The stop member 31 includes a dynamic seal 311 and a static seal 312. The elastic member 32 has a free end 321 and a stationary end 322.

The dynamic seal 311 forms a dynamic seal wall 31101. The static seal 312 forms a static seal wall 31201. The static seal 312 is fixed in the first channel 1001, and the dynamic seal 311 is axially slidably pressed against the free end 321 of the elastic member 32. The stationary end 322 of the resilient member 32 is held stationary in the first channel 1001.

When the second pipe joint member 20 is inserted into the first channel 1001 from the connection port 102 of the first pipe joint member 10 and locked by the locking assembly 40, one end of the dynamic seal 311 is pressed by the end of the second pipe joint member 20 to slide. At the same time, the elastic member 32 is compressed to axially displace the dynamic seal wall 31101 of the dynamic seal 311 relative to the static seal wall 31201 of the static seal 312, so that a fluid communication port 3001 communicating with the first passage 1001 and the second passage 2001 is formed between the static seal wall 312 and the dynamic seal wall 31101, thereby allowing the fluid to communicate between the first passage 1001 and the second passage 2001.

After the locking assembly 40 is unlocked, the dynamic seal 311 pushes the dynamic seal 311 to slide axially relative to the static seal 312 under the action of the restoring force at the free end 321 of the elastic member 32, so that the dynamic seal wall 31101 of the dynamic seal 311 is sealed from each other relative to the static seal wall 31201 of the static seal 312, and the first passage 1001 and the second passage 1002 are blocked.

When the first channel 1001 and the second channel 2001 are in communication with each other, the one-way no-go joint 100 is in a conductive state, and when the first channel 1001 and the second channel 1002 are blocked, the one-way no-go joint 100 is in a blocked state.

In the first embodiment, the dynamic seal 311 is implemented in a barrel shape, that is, the dynamic seal 311 has a cylindrical bottom wall 3111 and a circumferential side wall 3112 extending upward from the circumference of the cylindrical bottom wall 3111 to form a sliding chamber 311101 with the cylindrical bottom wall 3111. The top of the peripheral side wall 3112 is formed with a fitting port 311102 communicating with the sliding chamber 31101. The cylindrical bottom wall 3111 is provided with a cylindrical hole 311103.

In this embodiment, the side wall of the cylindrical bottom wall 3111 in which the cylindrical hole 311103 is formed defines the dynamic seal wall 31101.

The outer wall of the dynamic seal 311 is arranged to remain sealed against the first passage 1001 of the first fitting 10 to prevent fluid from flowing out between the outer wall of the dynamic seal 311 and the inner wall of the first fitting 10 forming the first passage 1001.

The static seal 312 has a shaped column 3121, an abutment table 3122 extending from the top surface of the shaped column 3121 in the cross-sectional direction, and a sealing column 3123 extending from the bottom surface of the shaped column 3121. At least one gap 31202 is formed between the bottom surface of the special-shaped column 3121 and the top surface of the abutting table 3122. The gap 31202 is communicated with the first passage 1001.

It is worth mentioning that the side wall of the sealing post 3123 of the static seal 312 forms the static sealing wall 31201.

In this embodiment, the sealing post 3123 of the static seal 312 is slidably received in the cylindrical opening 311103 of the cylindrical bottom wall 3111 of the dynamic seal 311. The abutment table 3122 of the static seal 312 is secured to the inner wall of the first fitting 10 forming the first passageway 1001. The elastic member 32 is sleeved on the shaped column 3121 of the static sealing member 312. Specifically, the stationary end 322 of the elastic member 32 is pressed against the bottom surface of the abutment table 3122, the free end 321 of the elastic member 32 is pressed against the top surface of the cylindrical bottom wall 3111 of the dynamic seal 311, and when the cylindrical bottom wall 3111 of the dynamic seal 311 is not pressed, the dynamic seal wall 31101 and the static seal wall 31201 are kept sealed with each other.

When the second pipe connection element 20 is not inserted into the first passage 1001 formed by the first pipe connection element 10, the static seal 312 is not moved, and the dynamic seal 311 presses the dynamic seal wall 31101 formed by the dynamic seal 311 and the static seal wall 31201 formed by the static seal 312 against each other under the action of the free end 321 of the elastic element 32 to maintain the seal, so that the fluid in the second passage 2001 cannot flow into the first passage 1001 through the notch 31202.

When the second pipe connection member 20 is not inserted into the first passage 1001 formed by the first pipe connection member 10, since the dynamic seal 311 is pressed by the second pipe connection member 20 to slide in the axial direction, accordingly, the free end 321 of the elastic member 32 is pressed so that the entire elastic member 32 is compressed. As the dynamic seal 311 progressively slides axially relative to the static seal 312, the dynamic seal wall 31101 and the static seal wall 31201 become misaligned with one another such that the notch 31202 will be positioned to communicate with the flow ports 3001 of the first and

second passages

1001, 2001 when the second fitting 20 is locked by the locking assembly 40. That is, fluid can flow between the first passage 1001 and the second passage 2001 through the notch 31202 at this time.

It is worth mentioning that the fluid cannot circulate between the outer wall of the first pipe connection 10 and the inner wall of the second pipe connection 20 because the inner wall of the first pipe connection 10 and the outer wall of the second pipe connection 20 are sealed by the first sealing member 50.

Preferably, the one-way check joint 100 further includes a second seal 60.

In this embodiment, the peripheral side wall 3112 of the dynamic seal 311 is provided with an annular groove 311201 for sleeving the second seal 60, so that the dynamic seal 311 maintains the seal between the dynamic seal 311 and the inner wall of the first pipe fitting 10 during the axial sliding process.

More preferably, the one-way check joint 100 further includes a third seal 70. The outer wall of the sealing column 3123 of the static seal 312 is provided with a sleeving groove 312301 for sleeving the third seal 70, so as to seal the gap between the dynamic sealing wall 31101 and the static sealing wall 31201 when the one-way no-go joint 100 is in a blocking state, thereby preventing the fluid from flowing between the dynamic sealing wall 31101 and the static sealing wall 31201.

Further, since the third seal 70 is provided, the cross-sectional diameter of the sealing post 3123 may be slightly smaller than the cross-sectional diameter of the cylindrical hole 31103, so that the dynamic seal wall 31101 and the static seal wall 31201 are sealed only by the third seal 70, and frictional resistance between the dynamic seal wall 31101 and the static seal wall 31201 is small when the dynamic seal wall 31101 slides in a staggered manner with respect to the static seal wall 31201.

Especially when the locking assembly 40 is unlocked, the dynamic seal member 311 and the second pipe joint member 20 pressing the dynamic seal member 311 can be automatically ejected by the elastic member 32 due to the restoring force of the elastic member 32. In this way, an operator only needs to unlock the locking assembly 40 with one hand when the one-way no-go joint 100 is switched from the on state to the off state.

The notch 31202 may be configured to be deformable, so that the cylindrical hole 311103 provided in the cylindrical bottom wall 3111 forms the flow port 3001 when the dynamic seal wall 31101 of the dynamic seal 311 is offset from the static seal wall 31201 of the static seal 312 by forming an inner wall of the cylindrical hole 311103 in the cylindrical bottom wall 3111.

It is worth mentioning that the first pipe connection piece 10 and/or the second pipe connection piece 20 may be implemented as a straight-through structure, and may also be implemented as a non-straight-through structure.

Further, the one-way no-go fitting 100 includes a screen 80. Preferably, the screen 80 is implemented as a deionizing net, wherein the deionizing net is installed at the first passage 1001 or the second passage 2001, so that ions in the fluid flowing through the one-way no-go structure 100 can be removed while passing through the deionizing net 80.

It is worth integrating that, because the one-way stop joint 100 has good sealing effect no matter in the on state or the off state, the fluid flowing through is not easy to leak.

It will be appreciated by persons skilled in the art that the embodiments of the invention shown in the foregoing description are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A one-way no-go coupling for mating two pipes, wherein the one-way no-go coupling comprises:

a no-go assembly, wherein the no-go assembly comprises:

an elastic member having a free end and a stationary end; and

2. The one-way stop-go joint according to claim 1, wherein the dynamic sealing member has a cylindrical bottom wall and a circumferential side wall extending upward from the circumference of the cylindrical bottom wall to form a sliding cavity with the cylindrical bottom wall, the top of the circumferential side wall forms an assembling opening communicating with the sliding cavity, the cylindrical bottom wall is provided with a cylindrical hole, the static sealing member has a shaped pillar, an abutting table extending from the top surface of the shaped pillar in the cross-sectional direction, and a sealing pillar extending from the bottom surface of the shaped pillar, the static end of the elastic member is pressed against the bottom surface of the abutting table, the free end of the elastic member is pressed against the top surface of the cylindrical bottom wall of the dynamic sealing member, at least one gap is formed between the bottom surface of the shaped pillar and the top surface of the abutting table, and the gap is communicated with the first channel, the sealing column of the static sealing element is sleeved in the cylindrical hole after penetrating through the sliding cavity from the assembling port, and when the movable sealing element slides along the axis, the sealing column and the cylindrical hole are staggered with each other, so that the notch forms the flow port communicated with the second channel.

3. The one-way stop-go joint according to claim 1, wherein the movable sealing member has a cylindrical bottom wall and a circumferential side wall extending upward from the circumferential edge of the cylindrical bottom wall to form a sliding chamber with the cylindrical bottom wall, the top of the circumferential side wall forms an assembling opening communicating with the sliding chamber, the cylindrical bottom wall is provided with a cylindrical hole, the static sealing member has a shaped pillar, an abutting table extending from the top surface of the shaped pillar in the cross-sectional direction, and a sealing pillar extending from the bottom surface of the shaped pillar, the static end of the elastic member is pressed against the bottom surface of the abutting table, the free end of the elastic member is pressed against the top surface of the cylindrical bottom wall of the movable sealing member, the inner wall of the cylindrical bottom wall forming the cylindrical hole is provided with at least one notch, and the notch is communicated with the first channel, the sealing column of the static sealing element is sleeved in the cylindrical hole after penetrating through the sliding cavity from the assembling port, and when the movable sealing element slides along the axis, the sealing column and the cylindrical hole are staggered with each other, so that the notch forms the flow port communicated with the second channel.

4. The one-way check joint of any one of claims 1 to 3, comprising a locking assembly, wherein the locking assembly is fixedly attached to the first fitting, wherein the second fitting is inserted into the first passage, and wherein the dynamic seal wall of the dynamic seal slides axially offset relative to the static seal wall of the static seal, and wherein the second fitting is locked by the locking assembly when a flow port is formed between the static seal wall and the dynamic seal wall that communicates with the first passage and the second passage.

5. The one-way lock-up joint according to claim 4, wherein the locking assembly comprises a locking band, the outer wall of the connection port of the first pipe connection member extends radially to form a mounting rim, the mounting rim is provided with at least a pair of locking windows along a radial direction, the locking band has a locking band body and a pair of elastic arms integrally extending from the locking band body, a clasping opening is formed between the elastic arms, the mounting rim further forms an insertion channel along the radial direction, the insertion channel is communicated with the pair of locking windows, the locking band is configured to be inserted from the insertion channel, when the locking band is inserted, the elastic arms of the locking band contract radially under the pressure of the inner wall of the insertion channel, and when the locking band is inserted into the insertion channel to a predetermined depth, the elastic arms spring back and are locked in the pair of locking windows, so that the clasping opening formed by the lock hoop is kept near the connecting opening, the outer wall of the end part of the second pipe connecting piece, which forms the communication opening, forms an annular clamping edge, when the end of the second pipe connecting piece, which forms the communication opening, is inserted into the first channel from the connecting opening, the annular clamping edge is pressed against the elastic arm which is kept at the accessory of the connecting opening, so that the clasping opening is expanded, and the elastic arm is expanded by the annular clamping edge as the end of the second pipe connecting piece, which forms the communication opening, is continuously inserted into the first channel, and the elastic arm is limited to move back beyond the annular clamping edge.

6. The one-way check connector of claim 5, wherein an inner wall of said resilient arm of said locking assembly has a snap projection extending axially toward a top wall of said resilient arm to form an upper guide surface.

7. The one-way check connector of claim 6, wherein said snap projection extends axially toward a bottom wall of said spring arm to form a lower guide surface.

8. The one-way stop-go joint according to any one of claims 1 to 3, wherein the one-way stop-go joint comprises a first sealing element, an installation groove is provided on an outer wall of the second pipe connecting member forming the communication port, and the first sealing element is installed in the installation groove.

9. The one-way stop-motion joint according to claim 2 or 3, wherein said one-way stop-motion joint comprises a second sealing member, said peripheral side wall of said dynamic sealing member is provided with an annular groove for nesting said sealing member, so that said dynamic sealing member maintains a seal between said dynamic sealing member and an inner wall of said first pipe-receiving member during axial sliding.

10. The one-way stop-go joint according to claim 2 or 3, wherein the one-way stop-go joint comprises a third sealing element, and the outer wall of the sealing column of the static sealing element is provided with a sleeving groove for sleeving the third sealing element, so that the static sealing wall and the dynamic sealing wall are attached to each other to maintain sealing.