CN214838636U

CN214838636U - One-way valve

Info

Publication number: CN214838636U
Application number: CN202120572531.3U
Authority: CN
Inventors: 李红彪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-21
Filing date: 2021-03-21
Publication date: 2021-11-23
Anticipated expiration: 2031-03-21

Abstract

The utility model discloses a check valve, including being connected to the first valve body on container or the container lid, first valve body including two first valve pieces that the mutual slope extends, first valve piece between the cooperation be formed with the first mouth of drawing that can supply air or material in the container to pass through, first valve piece include and can make the first elasticity atress portion of opening or closing of drawing after receiving the outside applied force. The utility model is used for one-way play liquid or one-way admitting air, simple structure can be with container or container lid injection moulding together moreover, the processing production of being convenient for to the cost of production is cheaper, in the recovery, need not to demolish the check valve, can retrieve simultaneously with container or container lid, is favorable to the environmental protection.

Description

One-way valve

[ technical field ] A method for producing a semiconductor device

The utility model relates to a check valve.

[ background of the invention ]

At present, a shampoo packaging bottle and a hand sanitizer packaging bottle generally use a pressing pump, and a one-way valve is generally arranged in the pressing pump, so that liquid in the bottle can only flow out outwards. However, the existing check valve has a complex structure, more used parts, more time is needed during assembly, and the production cost is increased.

And the check valve needs to be dismantled from the container or the lid and retrieve after finishing using, and the mode of retrieving is troublesome, is unfavorable for the environmental protection.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a check valve which has simple structure and convenient processing.

The utility model discloses a realize through following technical scheme:

a one-way valve characterized by: the valve comprises a first valve body 1 capable of being connected to a container or a container cover, wherein the first valve body 1 comprises two first valve blocks 11 extending obliquely with each other, a first cut 12 allowing air or a substance in the container to pass through is formed between the first valve blocks 11 in a matching manner, and the first valve block 11 comprises a first elastic force-bearing part 111 capable of opening or closing the first cut 12 after being subjected to an external force.

The check valve as described above, characterized in that: the first valve block 11 further includes a connecting portion 112 connected to the first elastic force-receiving portion 111, the first slit 12 is disposed between the two connecting portions 112, the first slit 12 can be opened outwards when the connecting portions 112 are away from each other, and the first slit 12 can be closed when the connecting portions 112 are close to each other.

The check valve as described above, characterized in that: the thickness of the first elastic force-bearing part 111 is smaller than that of the connecting part 112.

The check valve as described above, characterized in that: one side of the connecting portion 112 is provided with an inclined first force-bearing surface 1121, when the first force-bearing surfaces 1121 of the two connecting portions 112 are both subjected to an external force, the first elastic force-bearing portion 111 deforms to make the two connecting portions 112 away from each other, one side of the connecting portion 112 corresponding to the first force-bearing surface 1121 is provided with an inclined second force-bearing surface 1122, and when the second force-bearing surfaces 1122 of the two connecting portions 112 are both subjected to an external force, the first elastic force-bearing portion 111 deforms reversely to make the connecting portions 112 approach each other.

The check valve as described above, characterized in that: the first elastic force-bearing part 111 is a sheet connected to the container or the container cover, the sheet is connected with a connecting part 112, the first cut 12 is arranged between the two connecting parts 112, the first cut 12 can be opened outwards when the connecting parts 112 are far away from each other, and the first cut 12 can be closed when the connecting parts 112 are close to each other.

The check valve as described above, characterized in that: connecting portion 112 on be equipped with the third stress surface 1123 of slope, the foil produces deformation and makes connecting portion 112 keep away from each other when the third stress surface 1123 on two connecting portion 112 all receives external force, first elasticity stress portion 111 on be equipped with fourth stress surface 1111, and the foil produces reverse deformation and makes connecting portion 112 be close to each other when the fourth stress surface 1111 on two connecting portion 112 all receives external force.

The check valve as described above, characterized in that: a pressing piece 1112 which can be pressed against the connecting portion 112 when an external force is applied is provided on the sheet and outside the connecting portion 112.

The check valve as described above, characterized in that: one side of first elasticity atress portion 111 be equipped with the fifth stress surface 1113 of slope, first elasticity atress portion 111 produces deformation and makes connecting portion 112 keep away from each other when fifth stress surface 1113 on two first elasticity atress portions 111 all receives external force, first elasticity atress portion 111 in one side corresponding with fifth stress surface 1113 be equipped with the sixth stress surface 1114 of slope, first elasticity atress portion 111 produces reverse deformation and makes connecting portion 112 be close to each other when sixth stress surface 1114 on two first elasticity atress portions 111 all receives external force.

The check valve as described above, characterized in that: the first valve block 11 is also connected with an installation part 13 which can be connected to a container or a container cover, and the first valve body 1 is also connected with a second valve body 2.

The check valve as described above, characterized in that: the second valve body 2 comprises a cylinder body 21 connected to the mounting portion 13, the cylinder body 21 is further connected with two second valve blocks 22 extending in a mutually inclined mode, a second cut 23 allowing air or substances in a container to pass through is formed between the second valve blocks 22 in a matching mode, and the second valve blocks 22 comprise second elastic force bearing portions 221 which are connected to the cylinder body 21 and enable the second cut 23 to be opened or closed after external force is applied to the second valve blocks 22.

The check valve as described above, characterized in that: the second valve block 22 further includes a protruding portion 222 connected to the second elastic force-bearing portion 221, the second notches 23 are disposed between the protruding portions 222, and the second notches 23 can be opened outwards when the protruding portions 222 are away from each other, and can be closed when the protruding portions 222 are close to each other.

The check valve as described above, characterized in that: the inclined seventh force-bearing surfaces 2211 are arranged on the two second elastic force-bearing portions 221 on the side adjacent to the corresponding sixth force-bearing surface 1114, when the seventh force-bearing surfaces 2211 on the two second elastic force-bearing portions 221 are pressed by the sixth force-bearing surface 1114, the second elastic force-bearing portions 221 deform to make the protruding portions 222 away from each other, the inclined eighth force-bearing surfaces 2212 are arranged on the side of the second elastic force-bearing portions 221 corresponding to the seventh force-bearing surfaces 2211, and when the eighth force-bearing surfaces 2212 on the two second elastic force-bearing portions 221 are subjected to an external force, the second elastic force-bearing portions 221 deform reversely to make the protruding portions 222 approach each other and press the connecting portion 112.

The check valve as described above, characterized in that: a third elastic deformation part 24 capable of generating elastic deformation is further arranged between the cylinder 21 and the second valve block 22.

The check valve as described above, characterized in that: the third elastic deformation portion 24 is a thin sheet or a corrugated sheet.

The utility model discloses the second aspect provides a check valve, its characterized in that: the valve comprises a valve 3 which is slidably connected to a liquid outlet 4 of a container or a container cover and can open or close the liquid outlet 4 when sliding, wherein the valve 3 comprises a body 31, an outflow channel 311 which can be used for the material in the container to pass through is formed between the body 31 and the liquid outlet 4 in a matching way, the body 31 is also connected with a sealing part 32 which can communicate the outflow channel 311 with the liquid outlet 4 when the body 31 slides relative to the container or the container cover and can separate the outflow channel 311 from the liquid outlet 4 when the body 31 slides in a reverse direction relative to the container or the container cover.

The check valve as described above, characterized in that: the body 31 is cross-shaped, the sealing portion 32 is disposed on the upper end of the body 31 and extends to the outside, and a guiding groove 312 is formed between adjacent sides of the body 31.

The check valve as described above, characterized in that: the body 31 is further connected with a limit block 33 capable of limiting the sliding stroke of the body 31.

Compared with the prior art, the utility model discloses there is following advantage: the utility model discloses check valve is when using, squeeze container or container lid, and make the air in the inside material of container or the container lid receive compression and generate pressure, when first valve piece receives the pressure of compressed air or solution, thereby first elasticity atress portion atress and warp makes first drawing mouthful open or close, when first drawing mouthful is opened, the material can outwards be discharged through first drawing mouthful, and when first drawing mouthful is closed, container or container lid just are sealed, can't go out liquid this moment, the utility model is used for one-way play liquid or one-way admitting air, simple structure, and can be with container or container lid injection moulding together, the processing production of being convenient for to the cost of production is cheaper, when retrieving, need not to demolish check valve, can retrieve with container or container lid simultaneously, is favorable to the environmental protection.

[ description of the drawings ]

Fig. 1 is a cross-sectional view of embodiment 1 of the check valve of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

figure 3 is a cross-sectional view of embodiment 2 of the one-way valve of the present invention;

FIG. 4 is an enlarged view of area B of FIG. 3;

figure 5 is a cross-sectional view of embodiment 2 of the one-way valve of the present invention in use;

figure 6 is a cross-sectional view of embodiment 3 of the one-way valve of the present invention;

FIG. 7 is an enlarged view of area C of FIG. 6;

figure 8 is a cross-sectional view of embodiment 4 of the one-way valve of the present invention;

FIG. 9 is an enlarged view of area D of FIG. 8;

figure 10 is a cross-sectional view of embodiment 5 of the one-way valve of the present invention;

FIG. 11 is an enlarged view of area E of FIG. 10;

figure 12 is a cross-sectional view of embodiment 6 of the one-way valve of the present invention;

FIG. 13 is an enlarged view of area F of FIG. 12;

FIG. 14 is an enlarged view of region G of FIG. 12;

figure 15 is a cross-sectional view of embodiment 7 of the one-way valve of the present invention;

FIG. 16 is an enlarged view of region H of FIG. 15;

figure 17 is a cross-sectional view of embodiment 8 of the one-way valve of the present invention;

figure 18 is a cross-sectional view of embodiment 8 of the one-way valve of the present invention in use;

figure 19 is a cross-sectional view of embodiment 9 of the one-way valve of the present invention;

figure 20 is a cross-sectional view of embodiment 10 of the one-way valve of the present invention;

figure 21 is a cross-sectional view of embodiment 11 of the one-way valve of the present invention;

figure 22 is one of the cross-sectional views of embodiment 12 of the one-way valve of the present invention;

FIG. 23 is an enlarged view of FIG. 22;

fig. 24 is a perspective view of the check valve of the present invention;

fig. 25 is a second cross-sectional view of embodiment 12 of the check valve of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

example 1:

as shown in fig. 1 to 2, the present invention provides a check valve, including a first valve body 1 capable of being connected to a container or a container cover, the first valve body 1 includes two first valve blocks 11 extending in a mutually inclined manner, the first valve blocks 11 are formed with a first opening 12 for air or the substance in the container to pass through in a matching manner, the first valve blocks 11 include a first elastic force-receiving portion 111 capable of opening or closing the first opening 12 after receiving an external force.

The utility model discloses check valve is when using, squeeze container or container lid, and make inside material of container or the outside air of container receive the compression and produce pressure, when first valve piece 11 receives solution or compressed air's pressure, thereby first elasticity atress portion 111 atress and warp and make first drawing 12 open or close, when first drawing 12 is opened, the material can be through the outside discharge of first drawing 12, and when first drawing 12 is closed, container or container lid just is sealed, can't go out liquid this moment, the utility model is used for one-way play liquid or one-way admitting air, simple structure can be with container or container lid injection moulding together moreover, the processing production of being convenient for to the cost of production is cheaper.

The first valve block 11 further includes a connecting portion 112 connected to the first elastic force-receiving portion 111, the first slit 12 is disposed between the two connecting portions 112, the first slit 12 can be opened outwards when the connecting portions 112 are far away from each other, and the first slit 12 can be closed when the connecting portions 112 are close to each other. The thickness of the first elastic force-bearing part 111 is smaller than that of the connecting part 112. When the first elastic force-bearing portion 111 is stressed, it can deform and move, so that the two connecting portions 112 approach to each other or move away from each other.

One side of the connecting portion 112 is provided with an inclined first force-bearing surface 1121, when the first force-bearing surfaces 1121 of the two connecting portions 112 are subjected to an external force, the first elastic force-bearing portions 111 are deformed to make the connecting portions 112 away from each other, one side of the connecting portion 112 corresponding to the first force-bearing surfaces 1121 is provided with an inclined second force-bearing surface 1122, and when the second force-bearing surfaces 1122 of the two connecting portions 112 are subjected to an external force, the first elastic force-bearing portions 111 are reversely deformed to make the connecting portions 112 approach each other. When the first force-bearing surface 1121 is subjected to pressure of substances in the container or compressed air in the container cover, the first elastic force-bearing portion 111 moves outwards to generate deformation, and meanwhile the connecting portion 112 moves outwards along with the first elastic force-bearing portion 111 to enable the first notch 12 to be opened outwards, the substances in the container can flow out of the first notch 12, when the first force-bearing surface 1121 is not subjected to external force, the first elastic force-bearing portion 111 and the connecting portion 112 reset, at this time, the first notch 12 is closed, and therefore the substances flowing out of the first notch 12 are prevented from flowing back into the container. When the first scribe opening 12 is closed, a certain pressure is generated on the inclined second force-bearing surface 1122 by a position above the second force-bearing surface 1122, so that the first scribe opening 12 is further kept in a closed state.

Example 2:

as shown in fig. 3 to 5, the present embodiment is different from embodiment 1 in that the first elastic force-bearing portion 111 is a thin sheet connected to the container or the container cover, the thin sheet is connected to a connecting portion 112, the first notch 12 is disposed between the two connecting portions 112, and the first notch 12 can be opened outward when the connecting portions 112 are far away from each other, and the first notch 12 can be closed when the connecting portions 112 are close to each other. The connecting portions 112 are provided with inclined third stress surfaces 1123, when the third stress surfaces 1123 on the two connecting portions 112 are subjected to external force, the thin sheets deform to enable the connecting portions 112 to be away from each other, the first elastic stress portions 111 are provided with fourth stress surfaces 1111, and when the fourth stress surfaces 1111 on the two first elastic stress portions 111 are subjected to external force, the thin sheets deform reversely to enable the connecting portions 112 to be close to each other. When the third force-bearing surface 1123 is pressed by the substance in the container or the compressed air in the container cover, the thin sheet moves upwards to generate deformation, meanwhile, the connecting part 112 moves upwards along with the thin sheet to open the first cut 12 outwards, the air or the substance can flow out of the first cut 12, when the thin sheet is not subjected to external force, the first elastic force-bearing part 111 and the connecting part 112 reset, and at the moment, the first cut 12 is closed. When the fourth force-bearing surface 1111 is subjected to a reverse pressure, the first elastic force-bearing portion 111 moves downward to deform, and the connecting portion 112 is attached to the thin sheet by moving downward, so that the first opening 12 can be further closed.

A pressing piece 1112 which can be pressed against the connecting portion 112 when an external force is applied is provided on the sheet and outside the connecting portion 112. The pressing piece 1112 can increase the surface area of the force, and the connecting portions 112 are attached to each other and abut against the connecting portions 112, so that better sealing performance is achieved.

Example 3:

as shown in fig. 6 to 7, the present embodiment is different from embodiment 2 in that a pressing pump is used.

Example 4:

as shown in fig. 8 to 9, the difference between this example and embodiment 1 is that one side of the first elastic force-receiving portion 111 is provided with an inclined fifth force-receiving surface 1113, when the fifth force-receiving surfaces 1113 of the two first elastic force-receiving portions 111 receive an external force, the first elastic force-receiving portion 111 deforms to make the connecting portions 112 move away from each other, one side of the first elastic force-receiving portion 111 corresponding to the fifth force-receiving surface 1113 is provided with an inclined sixth force-receiving surface 1114, and when the sixth force-receiving surfaces 1114 of the two first elastic force-receiving portions 111 receive an external force, the first elastic force-receiving portions 111 deform in the opposite direction to make the connecting portions 112 approach each other.

When the fifth force-bearing surface 1113 is subjected to the pressure of the substance in the container or the compressed air in the container cover, the first elastic force-bearing portion 111 moves upwards to generate deformation, meanwhile, the connecting portion 112 moves upwards along with the first elastic force-bearing portion 111 to enable the first cut 12 to be opened outwards, the air or the substance can flow out of the first cut 12, when the first elastic force-bearing portion 111 does not receive external force, the first elastic force-bearing portion 111 and the connecting portion 112 reset, and at the moment, the first cut 12 is closed. When the sixth force-bearing surface 1114 is subjected to a reverse pressure, the first elastic force-bearing portion 111 moves downward to deform, and the connecting portion 112 is attached to the first elastic force-bearing portion 111 along with the downward movement of the first elastic force-bearing portion 111, so that the first opening 12 can be further closed.

Example 5:

as shown in fig. 10 to 11, this embodiment is different from embodiment 4 in that a pressing pump is used, and the arrangement direction and size of the connection portion 112 are different from those of embodiment 4.

Example 6:

as shown in fig. 12 to 14, the present embodiment is different from embodiment 1 in that a pressing pump is used, and the connecting portion 112 is disposed at a different angle with respect to the first elastic force-receiving portion 111, so that the first force-receiving surface 1121 and the second force-receiving surface 1122 are inclined at different angles with respect to the horizontal plane.

Example 7:

as shown in fig. 15 to 16, the present embodiment is different from embodiment 1 in that a pressing pump is used, and the connecting portion 112 is disposed at a different angle with respect to the first elastic force-receiving portion 111, so that the first force-receiving surface 1121 and the second force-receiving surface 1122 are inclined at different angles with respect to the horizontal plane.

Example 8:

as shown in fig. 17 to 18, the present embodiment is different from embodiment 1 in that a mounting portion 13 capable of being connected to a container or a container cover is further connected to the first valve block 11, and a second valve body 2 is further connected to the first valve body 1. The first valve body 1 can be mounted externally and used alone through the mounting portion 13, and when the first elastic force receiving portion 111 fails to restore the first slit 12 due to fatigue, the first valve body 1 can be detached and replaced, which saves cost.

The second valve body 2 comprises a cylinder body 21 connected to the mounting portion 13, the cylinder body 21 is further connected with two second valve blocks 22 extending in a mutually inclined mode, a second cut 23 allowing air or substances in a container to pass through is formed between the second valve blocks 22 in a matching mode, and the second valve blocks 22 comprise second elastic force bearing portions 221 which are connected to the cylinder body 21 and enable the second cut 23 to be opened or closed after external force is applied to the second valve blocks 22. The second valve block 22 further includes a protruding portion 222 connected to the second elastic force-bearing portion 221, the second slits 23 are disposed between the protruding portions 222, and the second slits 23 can be opened outwards when the protruding portions 222 are away from each other, and can be closed when the protruding portions 222 are close to each other. The protrusion 222 can move outwards or inwards to open the second notch 23 or close the second notch 23 following the deformation of the second elastic force-bearing portion 221, and the second valve body 2 and the first valve body 1 can cooperate to enable the second notch 23 and the first notch 12 to have better sealing performance when closed.

The inclined seventh force-bearing surface 2211 is arranged on the side, adjacent to the sixth force-bearing surface 1114, of the second elastic force-bearing portion 221, when the seventh force-bearing surface 2211 on the second elastic force-bearing portion 221 is pressed by the sixth force-bearing surface 1114, the second elastic force-bearing portion 221 deforms to enable the protruding portions 222 to be away from each other, the inclined eighth force-bearing surface 2212 is arranged on the side, corresponding to the seventh force-bearing surface 2211, of the second elastic force-bearing portion 221, and when the eighth force-bearing surface 2212 on the second elastic force-bearing portion 221 is subjected to an external force, the second elastic force-bearing portion 221 deforms reversely to enable the protruding portions 222 to approach each other and press the connecting portion 112. When the seventh force-bearing surface 2211 is pressed outwards by the sixth force-bearing surface 1114, the second elastic force-bearing portion 221 moves outwards to generate deformation, and meanwhile, the protrusion 222 moves outwards along with the second elastic force-bearing portion 221 to open the second notch 23 outwards, at this time, the first notch 12 and the second notch 23 are opened simultaneously, air or material can flow out from the second notch 23 through the first notch 12, when the first valve body 1 is restored, the seventh force-bearing surface 2211 is not subjected to external force, at this time, the second elastic force-bearing portion 221 and the protrusion 222 are restored, and the second notch 23 is restored to the initial size and is closed. When the eight force-bearing surface 2212 is subjected to reverse pressure, the second elastic force-bearing portion 221 moves inwards to generate deformation, meanwhile, the protruding portion 222 moves inwards along with the second elastic force-bearing portion 221 to be attached to each other, at the moment, the second notch 23 can be further closed, the seventh force-bearing surface 2211 applies jacking pressure to the sixth force-bearing surface 1114 to close the first notch 12, the first valve body 1 and the second valve body 2 form double closing, and the sealing performance is better.

A third elastic deformation part 24 capable of generating elastic deformation is further arranged between the cylinder 21 and the second valve block 22. The third elastic deformation portion 24 is thin and can deform when being stressed, so as to assist the second elastic stress portion 221 to move.

And a sealing ring is also arranged between the first valve body 1 and the second valve body 2. The sealing effect is better.

Example 9:

as shown in fig. 19, the present embodiment is different from embodiment 8 in that the third elastically deforming part 24 is a thin plate. And no sealing ring is arranged between the first valve body 1 and the second valve body 2.

Example 10:

as shown in fig. 20, the present embodiment is different from embodiment 9 in that the third elastically deforming part 24 is a corrugated sheet having single corrugation wrinkles.

Example 11:

as shown in fig. 21, the present embodiment is different from embodiment 9 in that the third elastically deforming part 24 is a corrugated sheet having a plurality of corrugations.

Example 12:

as shown in fig. 22 to 25, the present embodiment is different from embodiment 1 in that the check valve includes a valve 3 slidably connected to the liquid outlet 4 of the container or the container cover and capable of opening or closing the liquid outlet 4 when sliding, the valve 3 includes a body 31, an outflow channel 311 for passing the substance in the container is cooperatively formed between the body 31 and the liquid outlet 4, and the body 31 is further connected to a sealing portion 32 capable of communicating the outflow channel 311 with the liquid outlet 4 when sliding relative to the container or the container cover and blocking the outflow channel 311 from the liquid outlet 4 when the body 31 slides in a reverse direction relative to the container or the container cover.

The check valve in this embodiment can slide relative container or container lid after the atress, sealing 32 slides and makes the liquid outlet 4 and the outflow passageway 311 intercommunication of container or container lid this moment along body 31, and the material in the container just can outwards flow in following the container this moment, and after removing the external force that the check valve received, thereby sealing 32 follows body 31 reverse slip and closes liquid outlet 4 and outflow passageway 311, and the material in the container just can outwards flow this moment, moreover, the steam generator is simple in structure, and convenient operation.

As shown in fig. 23 to 24, the main body 31 is cross-shaped, the sealing portion 32 is a protrusion extending outward from the upper end of the main body 31, and a guiding groove 312 is formed between adjacent sides of the main body 31. Of course, when the sealing portion 32 and the container or the container cover are abutted against each other, the bottom surface of the sealing portion 32 is abutted against the container or the container cover to close the liquid outlet 4, and at this time, the liquid cannot be discharged, and the guide groove 312 is used for guiding the material in the container to flow outward.

As shown in fig. 22 to 25, the body 31 is further connected with a stopper 33 capable of limiting the sliding stroke of the body 31. The stopper 33 is disposed at the lower end of the body 31 for limiting the sliding stroke of the body 31 relative to the container or the container cover, and preventing the body 31 from being removed from the liquid outlet 4 of the container or the container cover.

Claims

1. A one-way valve characterized by: the valve comprises a first valve body (1) capable of being connected to a container or a container cover, wherein the first valve body (1) comprises two first valve blocks (11) extending obliquely with each other, a first cut (12) allowing air or a substance in the container to pass through is formed between the first valve blocks (11) in a matching manner, and the first valve blocks (11) comprise first elastic force bearing parts (111) capable of opening or closing the first cut (12) after being subjected to external force.

2. The one-way valve of claim 1, wherein: the first valve block (11) further comprises a connecting portion (112) connected to the first elastic stress portion (111), the first cut (12) is arranged between the two connecting portions (112), the first cut (12) can be opened outwards when the connecting portions (112) are far away from each other, and the first cut (12) can be closed when the connecting portions (112) are close to each other.

3. The one-way valve of claim 2, wherein: the thickness of the first elastic stress part (111) is smaller than that of the connecting part (112).

4. The one-way valve of claim 3, wherein: one side of each connecting part (112) is provided with an inclined first stress surface (1121), when the first stress surfaces (1121) of the two connecting parts (112) are subjected to external force, the first elastic stress parts (111) deform to enable the two connecting parts (112) to be away from each other, one side of each connecting part (112) corresponding to the first stress surface (1121) is provided with an inclined second stress surface (1122), and when the second stress surfaces (1122) of the two connecting parts (112) are subjected to external force, the first elastic stress parts (111) deform reversely to enable the connecting parts (112) to be close to each other.

5. The one-way valve of claim 1, wherein: the first elastic stress part (111) is a sheet connected to the container or the container cover, the sheet is connected with a connecting part (112), the first cut (12) is arranged between the two connecting parts (112), the first cut (12) can be opened outwards when the connecting parts (112) are far away from each other, and the first cut (12) can be closed when the connecting parts (112) are close to each other.

6. The one-way valve of claim 5, wherein: connecting portion (112) on be equipped with inclined third stress surface (1123), the foil produces deformation and makes connecting portion (112) keep away from each other when third stress surface (1123) on two connecting portion (112) all receive external force, first elasticity stress portion (111) on be equipped with fourth stress surface (1111), and when fourth stress surface (1111) on two connecting portion (112) all receive external force the foil produce reverse deformation and make connecting portion (112) be close to each other.

7. The one-way valve of claim 5, wherein: and a jacking sheet (1112) which can be jacked against the connecting part (112) when external force is applied to the sheet and is positioned outside the connecting part (112).

8. The one-way valve of claim 2, wherein: one side of first elasticity atress portion (111) be equipped with inclined fifth atress face (1113), first elasticity atress portion (111) produces deformation and makes connecting portion (112) keep away from each other when fifth atress face (1113) on two first elasticity atress portions (111) all receive external force, first elasticity atress portion (111) in with the corresponding one side of fifth atress face (1113) be equipped with inclined sixth atress face (1114), first elasticity atress portion (111) produce reverse deformation and make connecting portion (112) be close to each other when sixth atress face (1114) on two first elasticity atress portions (111) all receive external force.

9. The one-way valve of claim 8, wherein: the first valve block (11) is further connected with an installation part (13) capable of being connected to a container or a container cover, and the first valve body (1) is further connected with a second valve body (2).

10. The one-way valve of claim 9, wherein: second valve body (2) including connecting barrel (21) on installation department (13), barrel (21) on still be connected with two second valve pieces (22) that extend that mutually incline, second valve piece (22) between the cooperation be formed with second cut out mouthful (23) that can supply air or container interior material to pass through, second valve piece (22) including being connected to on barrel (21) and can make second cut out mouthful (23) open or the second elasticity atress portion (221) of closing after receiving the outside applied force.

11. The one-way valve of claim 10, wherein: the second valve block (22) further comprises a protruding portion (222) connected to the second elastic stress portion (221), the second cut (23) is arranged between the protruding portions (222), the second cut (23) can be opened outwards when the protruding portions (222) are far away from each other, and the protruding portions (222) are close to the second cut (23) and can be closed.

12. The one-way valve of claim 11, wherein: the inclined seventh stress surfaces (2211) are arranged on the two second elastic stress parts (221) and adjacent to the corresponding sixth stress surfaces (1114), when the seventh stress surfaces (2211) on the two second elastic stress parts (221) are pressed by the sixth stress surfaces (1114), the second elastic stress parts (221) deform to enable the protruding parts (222) to be far away from each other, inclined eighth stress surfaces (2212) are arranged on the second elastic stress parts (221) and corresponding to the seventh stress surfaces (2211), and when the eighth stress surfaces (2212) on the two second elastic stress parts (221) are subjected to external force, the second elastic stress parts (221) deform reversely to enable the protruding parts (222) to be close to each other and press the connecting part (112).

13. The one-way valve of claim 10, wherein: and a third elastic deformation part (24) capable of generating elastic deformation is arranged between the cylinder body (21) and the second valve block (22).

14. The one-way valve of claim 13, wherein: the third elastic deformation part (24) is a thin sheet or a corrugated sheet.

15. A one-way valve characterized by: the valve comprises a valve (3) which is slidably connected to a liquid outlet (4) of a container or a container cover and can open or close the liquid outlet (4) when sliding, wherein the valve (3) comprises a body (31), an outflow channel (311) which can be used for the substance in the container to pass through is formed between the body (31) and the liquid outlet (4) in a matching manner, the body (31) is further connected with a sealing part (32) which can communicate the outflow channel (311) with the liquid outlet (4) when the body (31) slides relative to the container or the container cover and can separate the outflow channel (311) from the liquid outlet (4) when the body (31) slides reversely relative to the container or the container cover.

16. The one-way valve of claim 15, wherein: the body (31) be the setting of cross, sealing portion (32) locate body (31) upper end and outside extension's lug, just body (31) on be formed with guide groove (312) between the adjacent side.

17. The one-way valve of claim 15, wherein: the body (31) is also connected with a limit block (33) which can limit the sliding stroke of the body (31).