CN201301042Y - Check valve and compression bag - Google Patents
Check valve and compression bag Download PDFInfo
- Publication number
- CN201301042Y CN201301042Y CNU2008201558458U CN200820155845U CN201301042Y CN 201301042 Y CN201301042 Y CN 201301042Y CN U2008201558458 U CNU2008201558458 U CN U2008201558458U CN 200820155845 U CN200820155845 U CN 200820155845U CN 201301042 Y CN201301042 Y CN 201301042Y
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- Prior art keywords
- valve
- bag
- periphery
- base plate
- opening
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000006835 compression Effects 0.000 title description 3
- 238000007906 compression Methods 0.000 title description 3
- 229920001971 elastomer Polymers 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000003434 inspiratory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007654 immersion Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 239000000428 dust Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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- Check Valves (AREA)
- Bag Frames (AREA)
Abstract
The utility model aims at providing a check valve, it can conveniently emit the air, has good contrary effect of closing, and its structure is very simple. The utility model discloses a check valve both can make inside air outwards discharge, can prevent outside air again to inside immersion. The structure is as follows: a base plate 2 provided with a valve port 1, and a rubber valve 3 mounted on the base plate 2, the rubber valve 3 covering the valve port 1 and having a sealing surface 3c on a thin-walled peripheral portion 3 a; the valve port 1 corresponds to a valve opening 5 provided in a sealable bag body 4. The bottom plates 2 are attached to both sides of the valve opening 5, and the peripheral portion of the valve opening 5 of the bag body 4 is interposed between the sealing surface 3c of the rubber valve 3 and the bottom plates 2. The sealing surface 3c is closely attached to the peripheral portion 5a of the valve opening 5 of the bag body 4 to prevent outside air from entering the bag body 4.
Description
Technical field
The utility model relates to a kind of about the simple and easy check valve on the bag that is installed in usefulness such as storage clothing class, bedding, and the compressed bag of dress check valve.
Background technology
When people will be put into clothing class and bedding etc. in wardrobe or the big cupboard, often use compressed bag.People can take its in-to-in air away, dwindle its volume, are maintained at small-sized compressive state.Its preceence is: in circulation process, this compressed bag can make many clothing classes, bedding etc. be covered up, and is compressed into small status transportation, keeping, thereby has reduced circulation cost.For example existing some compressed bag is put into the blow off valve (check valve) that is contained on the bag to the suction nozzle of dust collecting fan exactly, siphons away the air in the bag.
The formation of this blow off valve is: form arch shape above the blow off valve lid, it has the air-breathing hole of using that can connect cleaner suction nozzle, can allow cleaner suction nozzle vertically or obliquely be connected on the lid of valve and outgas.Simultaneously, latching device is housed also on this blow off valve, it can make sack keep degassing phase.When the lid of valve when a direction is rotated, the valve plate of latching device has covered deflation hole, makes it to become the valve state that closes, but when this lid rotates to another way, has just removed valve plate and covered deflation hole, makes it to become out the valve state.
The utility model content
The purpose of this utility model is the compressed bag that a kind of check valve is provided and comprises this check valve, and it can make a bag interior air discharge, and can stop air to immerse in the bag.
Check valve of the present utility model can make a bag interior air discharge, and can stop air to immerse in the bag, is characterized in comprising: the base plate that is formed with valve port; Have sealing surface periphery, it is the rubber valve on the described base plate of being arranged on of thin shape, it covers described valve port.
According to above-mentioned structure,, also stoped the immersion of outside air by valve port because the elasticity of rubber valve itself had both allowed air to discharge to the outside from valve port.Therefore, its structure is very simple, and cheap.In addition, periphery has the sealing surface of thin type, and it can be out of shape and drive valve.So, do not want very big strength when driving valve.Simultaneously, because of the elasticity of rubber valve itself can make it to close valve, so can keep the state that it closes valve, the not action of operation locking valve again.
In the above-mentioned check valve, above-mentioned valve port is corresponding with opening with the valve of sealable bag.Above-mentioned base plate is installed in above-mentioned valve with around the opening.At this moment, between the sealing surface and above-mentioned base plate of above-mentioned rubber valve, the periphery of the valve of above-mentioned bag with opening arranged.
When above-mentioned bag inside has air pressure or outside to come in suction pressure, the periphery of above-mentioned rubber valve resists mutually with the elastic force of rubber and has been pushed, above-mentioned sealing surface is separated with the periphery of opening from the valve of above-mentioned bag, air is discharged in above-mentioned bag.Otherwise, because the effect of bar pressure and caoutchouc elasticity.The periphery of above-mentioned rubber valve is pushed to the outside, and the valve that makes above-mentioned sealing surface cling to above-mentioned bag is used on the periphery of opening, thereby has stoped air to immerse the inside of above-mentioned bag.
Like this,, can be put into clothing class etc. in the bag, seal the peristome of bag then if above-mentioned check valve is when being contained on the bag.By extruding and folding bag, can improve the in-to-in air pressure; Perhaps, with air exhaustion in the bag, make the sealing surface of rubber valve leave the periphery of the valve of bag, the air in the bag is discharged to the outside, can make bag be in compressive state with opening by dust collecting fan.
This squeeze operation process is: extruding or folding bag, improve the air pressure in the bag, and make the periphery distortion of rubber valve of the softness of slim shape, allow air discharge.
Like this, just do not need to use as before very big strength, some weak body persons such as women and children also can be easily the air exhaustion in the bag.
When bag was in compressive state, the periphery of rubber valve produced the elastic force of rubber, by barometric pressure from external compression.So sealing surface just is close to the periphery of the valve of bag with opening, valve has just cut out with opening.Like this, just stoped extraneous air to invade the inside of bag well, made bag can be maintained at compressive state.
Above-mentioned rubber valve, viewed in plan are toroidal.The radius extroversion of its periphery is most advanced and sophisticated thin shape, and is connected portion in the inboard of this periphery, and it is connected on the connecting portion that is formed at above-mentioned base plate.
From as can be known above-mentioned, the portion of being connected of rubber valve is connected on the connecting portion of base plate, and rubber valve is fixed on the base plate, allows air emit from the periphery of the rubber valve of toroidal all sidedly.In addition, have the periphery of sealing surface to be most advanced and sophisticated thin shape with the radius extroversion, it can closely be attached to the valve of bag with around the opening, has stoped air to immerse from the outside to the bag in-to-in effectively.
From the periphery of above-mentioned valve port, establishing several reinforced ribs with certain interval, it is supporting above-mentioned connecting portion.The portion of being connected of above-mentioned rubber valve is connected on the connecting portion that is formed at above-mentioned base plate, and like this, the inboard of above-mentioned rubber valve also can form spatial portion, and it is connected on the opening between above-mentioned several reinforced ribs.Therefore, when bag was in compressive state, the air in the bag just can enter spatial portion from valve port by opening between reinforced rib easily, improved the interior pressure of the inboard of rubber valve, easily air was discharged to the outside from periphery.
The protection part plays a part the above-mentioned rubber valve of protection, and it can freely be installed and dismantle on above-mentioned base plate.Like this, owing to be provided with the protection part, just can prevent the contact of rubber valve and come off, thereby avoid the problem that causes because of the damage of rubber valve and coming off etc.
Above-mentioned protection part forms arch shape; it have can allow airiness if in individual through hole; and; it also has the support portion; between the periphery and above-mentioned base plate of the valve that it is in above-mentioned bag with opening, like this, the effect of the support portion of the periphery by being formed at the protection part; the valve that makes bag, does not need that part is installed in addition and supports bag between base plate with the perimeter support of opening on base plate.
A kind of compressed bag of the present utility model with above-mentioned check valve, be characterized in: on the peristome of described bag, be equipped with and make it the leak free slide fastener, it is corresponding with opening with the valve of described valve port on being contained in described bag, and described base plate is contained in the described valve periphery with opening.
According to above-mentioned structure, in bag, put clothing class etc. well, closed after the slide fastener, can push or folding bag increases bag in-to-in air pressure or externally air-breathing or the like with dust collecting fan.At this moment, because of the elasticity of rubber valve itself, air is discharged to the outside from valve port.And, can also stop air to be immersed in valve port by the outside.So, can make simplifying the structure, cheaply changing of check valve.In addition, the periphery of the formed thin shape of sealing surface can be out of shape, and at this moment, valve has just been opened, and very big strength just can not opened valve.And, can close valve by the elastic force of rubber valve itself, thus with regard to do not carry out trouble for keeping the locking operation that close valve state carries out.When people will use clothing class etc., remove compressive state as long as open slide fastener, just can take out clothing etc. easily.In addition, at bag Anywhere, all can form valve and check valve is installed with opening.So need on bag, not leave the place that check valve is installed in addition, make compressed bag become miniaturization more.
Effect of the present utility model:
Structure of the present utility model is: the base plate that is formed with valve port; Have the periphery of sealing surface, it is thin shape; And being arranged on rubber valve on the described base plate, it covers described valve port.
Therefore; Because the elasticity of rubber valve itself can make air by valve port row to the outside.Simultaneously, can stop air to enter valve port again by the outside.This structure not only simply but also cheap.
In addition, being periphery thin shape, that have sealing surface can be out of shape, and valve is opened.So just do not need very big valve opening force amount.Simultaneously, by the elasticity of rubber valve itself, valve cuts out.So, just do not need the operation of the locking valve of trouble.
Compressed bag of the present utility model can be stored clothing class etc. in bag.After having closed slide fastener, by extruding and folding bag, can improve the in-to-in air pressure, perhaps air-breathing from the outside with dust collecting fan, by check valve to the outside, make bag be in compressive state with air row.When carrying out this squeeze operation, can make the thin type periphery distortion of band sealing surface and drive valve.Just do not need very big strength when therefore, driving valve.Simultaneously, the elasticity because of rubber valve itself can make valve close.To keep the locking operation of closing the valve state and carrying out with regard to having saved like this.If in the time of will using clothing, can open slide fastener, remove the compressive state of compressed bag, take out clothing easily, in addition, can the valve opening part be set in any place of bag, check valve is installed.So just need on bag, not be thought of as the space that check valve is installed, make compressed bag miniaturization more.
Description of drawings
Fig. 1 is the section drawing according to the check valve of the utility model specific embodiment.
Fig. 2 (a) is the planar view of rubber valve; (b) be the section drawing of rubber valve;
Fig. 3 (a) is the planar view of base plate; (b) be the section drawing of base plate; (c) be the ground plan of base plate;
Fig. 4 (a) is the planar view of protection part; (b) for protecting the section drawing of part; (c) for protecting the ground plan of part;
Fig. 5 is the front elevation of compressed bag.
About being described as follows of drawing basic symbol:
1 ... valve port 2 ... base plate 2b ... connecting portion 2c ... reinforced rib
2d ... opening 3 ... rubber valve 3a ... periphery 3b ... be connected portion
3c ... sealing surface 3e ... spatial portion 4 ... bag 5 ... the valve opening
5a ... periphery 6 ... protection part 6a, 6b, 6c ... through hole
6h.... support portion 10.... check valve 13.... slide fastener
The specific embodiment
Be illustrated in figure 1 as the section drawing of the check valve 10 that is installed on the compressed bag.Fig. 5 represents to install the compressed bag 20 of check valve 10.This compressed bag 20 is made up of the synthetic resin sheet of 2 rectangles (oblong) shape, and on its both sides and base, totally three weldings, and welding h is arranged.Slide fastener 13 is arranged on its peristome, make it sealing.On the position check valve 10 is being housed near this slide fastener 13.Base plate 2 is formed with valve port 1; Rubber valve 3 is installed on the base plate 2, sees that from the plane it is a toroidal, the slim tip-shape shape of the export-oriented formation of its periphery 3a radius.In addition, its periphery 3a towards below sealing surface 3c is arranged.Be connected the 3b of portion on the inboard of sealing surface 3a, it is connected on the connecting portion 2b that is formed at base plate 2; Valve is formed on the bag 4 with opening 5.Protection part 6 can prevent the damage of rubber valve 3 and come off, and protection part 6 also has through hole 6a～6c, and it is the cycloidal arch shape, can allow airiness.
Shown in Figure 1, show that check valve 10 is installed in the state on the compressed bag 20.The valve port 1 of check valve is corresponding with opening 5 with the valve of bag 4; Bag 4 valves place between check valve 10 and the base plate 2 with the periphery of opening 5, and the support portion 6h that it is formed on the periphery of protection part 6 supports; The periphery 5a of the valve of bag 4 with opening 5 arranged between the sealing surface 3c of rubber valve 3 and base plate 2.According to this structure, after having put clothing in the bag 4 and closing slide fastener 13,, improve a bag inner air pressure by extruding bag 4 or folding bag 4; Perhaps, connect dust collecting fan if aftermentioned is said, air-breathing from the outside to check valve 10.Like this, because the periphery 3a of rubber valve 3 has been extruded up from the inboard by the elastic force of rubber, sealing surface 3c uses the periphery 5a of opening 5 to separate from the valve of bag 4, allows the inner air of bag 4 discharge to the outside.
According to above-mentioned squeeze operation, extruding or folding bag 4 improve the air pressure in the bag, can make the periphery 3a distortion of rubber valve 3 of the softness of thin type, to outside exhaust.Like this, just do not need to go exhaust with very big strength as before, weak persons such as women and children also can come air exhaustion easily.When bag 4 was in compressive state, the periphery 3a of rubber valve 3 had produced the elastic force of rubber, is pushed from the outside by barometric pressure, made sealing surface 3c closely paste the periphery 5a of the valve of bag 4 with opening 5, had closed valve with opening 5.For this reason, stoped air to invade the inside of bag 4 from the outside effectively, stably allowed bag 4 remain in the state of compression.
Like this, because the elastic reaction of rubber valve 3 itself makes valve body produce unidirectional effect of closing, therefore, provide a kind of simple and cheap check valve 10.In addition, because sealing surface 3c is formed on the periphery 3a of thin type, the distortion of periphery 3a can make valve open.So, when driving valve, just do not need very big strength.And valve closing is an elastic force of utilizing rubber valve 3 itself, so do not need to keep the latching device of the trouble of using when closing the valve state.
In addition, the utility model has the advantages that: at random can check valve 10 be installed to form valve with opening 5 at bag 4.Therefore, the space of using when not needing to consider check valve 10 is installed on bag makes compressed bag 20 miniaturization more that becomes.
To do more detailed description to whole formation of the present utility model below.
Shown in Fig. 2 (a)～(b), the periphery 3a of rubber valve 3, the plane seems toroidal, the thin shape that its radial direction outside tapers off to a point.In its most advanced and sophisticated bottom sealing surface 3c is arranged, it seals form closely so it can form with the periphery 5a of opening 5 valve of bag 4 in the form of a ring.In addition, form hollow toroidal at periphery 3a lower inside central portion, place the top of above-mentioned hollow parts with being connected the 3b of portion circular arc ditch shape, this is connected the 3b of portion loading, unloading freely and is connected on the connecting portion 2b on the base plate 2.
Shown in Fig. 3 (a)～(c), the plane sees that base plate 2 is discoideus, and circle-shaped teat 2h is arranged on the periphery of its base plate 2a, and it is connecting connection ditch (support portion) 6h of interior all bottoms of protecting part 6.Connecting portion 2b forms criss cross, and it is connecting rubber valve 3.Connecting portion 2b is supported by 4 reinforced rib 2c, and this reinforced rib 2c establishes in the periphery of valve port 1 with certain interval.Connecting portion 2b can be plectane (dish) shape, and the 3b of the portion that is connected of rubber valve 3 is connected on the connecting portion 2b.At this moment, form spatial portion 3e in the inboard of rubber valve 3, (Fig. 1) goes up in the opening 2b of plural reinforced rib 2c in its UNICOM.Therefore, when bag 4 was in compressive state, the air in the bag 4 can enter spatial portion 3e from valve port 1 through the opening 2d between reinforced rib 2c easily very soon, and inboard interior pressure of rubber valve 3 improved, and air is discharged to the outside from periphery 3a.On the other hand, begin to have a lot of convex strip portions 2r from valve port 1, be formed at the inside of base plate 2 radially, effect because of the trove of the compressive state of collection in the bag 4, can not make valve port 1 obturation, air can enter convex strip portions 2r soon and be formed at radial ditch between convex strip portions 2r, discharges by valve port 1.
Shown in Fig. 4 (a)～(c), protection part 6 has through hole 6a～6c, and they line up three row with the certain intervals of circumferencial direction.Outermost through hole 6a is formed on the periphery, and they are the circular-arc of epirelief.The through hole 6b of side row formation couples together by the connection ditch r that radiates direction in their inboard within it.As described later, when the inspiratory force of dust collecting fan acted on this part, because the rear side of rubber valve 3 is close to the through hole 6b of inner column, and this through hole 6b was by being communicated with ditch r, be connected to outermost through hole 6a, thereby can guarantee sufficient aspiratory action.In addition, the center of outermost through hole 6a is arranged on the nearest outer fix of rubber valve 3, and through hole 6d is formed on the arch shape part of periphery inboard, and through hole 6a is circular-arc slotted hole.
Though the utility model is described with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, under the situation that does not break away from the utility model spirit, also can make the variation or the replacement of various equivalences, for example (diagram omit) can use viscose glue etc. that the periphery of the valve of bag 4 with opening 5 is bonded on the base plate 2, and the periphery 3a of rubber valve 3 directly is expressed on the base plate 2.In addition, also can implement the utility model by following form.
Air in the bag 4 is imported to valve port 1,, arrive spatial portion 3e through the opening 2d between reinforced rib 2c.The reinforced rib 2c of the 2b of support and connection portion is built up in central authorities' (above-mentioned connecting portion 2b is the 3b of the portion that is connected of support rubber valve 3) of base plate 2, and air enters spatial portion 3e from being formed at base plate 2 several valve ports 1 on every side.
In addition, in the inboard of rubber valve 3 protrusion is arranged, it can freely embed or unload from valve port 1, improves the leak tightness of product.
Also have, the shape of rubber valve 3 also is not limited to toroidal, can be oval-shaped or rectangular (rectangle).
Protection part 6 is not limited to arch shape, also can be flat.
The installation site of check valve 10 can be not in the nearby position of slide fastener 13, as long as chosen position suitably.
The slide fastener 13 of compressed bag 20 also can be with slide plate.
Therefore, according to aforesaid various embodiment of the present utility model, as long as in connotation scope of the present utility model in the scope to the variation of the foregoing description, claims that modification all will drop on the application.
Claims (7)
1. check valve, it can make air discharge, but can stop air to suck, and it is characterized in that comprising:
Be formed with the base plate (2) of valve port (1); And
Be arranged on the rubber valve (3) on the described base plate (2), the periphery (3a) that it has sealing surface (3c) covers described valve port (1).
2. check valve as claimed in claim 1 is characterized in that:
Described valve port (1) is corresponding with opening (5) with the valve on being formed on sealable bag (4), described base plate (2) is contained in the periphery of described valve with opening (5), the valve of described bag (4) uses the periphery (5a) of opening (5) between the sealing surface (3c) and base plate (2) of described rubber valve (3), the periphery (3a) of described rubber valve (3) is on the one hand because bag (4) in-to-in air pressure or outside inspiratory force, sealing surface (3c) leaves the periphery (5a) of the valve of bag (4) with opening (5), thereby allow air from the inside of bag (4) row to the outside, on the other hand because the bounce of barometric pressure and rubber, the periphery (3a) of described rubber valve (3) is extruded, thereby described sealing surface (3c) connects airtight on the periphery 5a of valve with opening (5) of described bag (4), is flow into the inside of bag (4) by the outside to stop air.
3. check valve as claimed in claim 1, it is characterized in that: the rounded shape of its orthographic projection view of described rubber valve (3), its periphery (3a) radial direction outside wall thickness is tip-shape, and, in the inboard of its periphery (3a) portion of being connected (3d) is housed, this is connected portion (3d) and is connected on the connecting portion (2b) that is formed at described base plate (2).
4. check valve as claimed in claim 2, it is characterized in that: be erected to be provided with several reinforced ribs (2c) by certain interval from the periphery of described valve port (1), these reinforced ribs (2c) are supporting described connecting portion (2b), the portion that is connected (3b) of described rubber valve (3) is connected on the connecting portion (2b) that is formed at described base plate (2), and at the spatial portion (3e) that the opening (2d) that is connected to form on described several reinforced ribs (2c) is arranged on the inboard of described rubber valve (3).
5. check valve as claimed in claim 1 is characterized in that: described base plate (2) is provided with the protection part (6) of the described rubber valve of the protection that can freely load and unload (3).
6. check valve as claimed in claim 5; it is characterized in that: the through hole (6a～6c) that is formed with arch shape on the described protection part (6); and; described protection part (6) also is provided with support portion (6h), and it is supported between the periphery (5a) and described base plate (2) of valve with opening (5) of described bag (4).
7. compressed bag that has as the described check valve of each claim in the claim 1 to 6, it is characterized in that: on the peristome of described bag (4), be equipped with and make it leak free slide fastener (13), check valve is corresponding with opening (5) with the valve on being contained in described bag (4), and described base plate (2) is contained in the periphery of described valve with opening (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201558458U CN201301042Y (en) | 2008-11-25 | 2008-11-25 | Check valve and compression bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201558458U CN201301042Y (en) | 2008-11-25 | 2008-11-25 | Check valve and compression bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301042Y true CN201301042Y (en) | 2009-09-02 |
Family
ID=41084660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201558458U Expired - Lifetime CN201301042Y (en) | 2008-11-25 | 2008-11-25 | Check valve and compression bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301042Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464130A (en) * | 2010-10-28 | 2012-05-23 | 大洋化学株式会社 | Exhaust valve for storage bag |
| WO2016082295A1 (en) * | 2014-11-27 | 2016-06-02 | 王荣平 | Novel internal structural tire for automatically inflating small air bag |
| CN109402963A (en) * | 2017-08-17 | 2019-03-01 | 上海小吉互联网科技有限公司 | A kind of washing machine detergent embarking device |
-
2008
- 2008-11-25 CN CNU2008201558458U patent/CN201301042Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464130A (en) * | 2010-10-28 | 2012-05-23 | 大洋化学株式会社 | Exhaust valve for storage bag |
| CN102464130B (en) * | 2010-10-28 | 2014-03-12 | 大洋化学株式会社 | Exhaust valve for storage bag |
| WO2016082295A1 (en) * | 2014-11-27 | 2016-06-02 | 王荣平 | Novel internal structural tire for automatically inflating small air bag |
| CN109402963A (en) * | 2017-08-17 | 2019-03-01 | 上海小吉互联网科技有限公司 | A kind of washing machine detergent embarking device |
| CN109402963B (en) * | 2017-08-17 | 2024-02-09 | 上海小吉互联网科技有限公司 | Automatic detergent throwing device of washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090902 |