CN207619456U - A kind of natural cooling equipment - Google Patents
A kind of natural cooling equipment Download PDFInfo
- Publication number
- CN207619456U CN207619456U CN201721636666.1U CN201721636666U CN207619456U CN 207619456 U CN207619456 U CN 207619456U CN 201721636666 U CN201721636666 U CN 201721636666U CN 207619456 U CN207619456 U CN 207619456U
- Authority
- CN
- China
- Prior art keywords
- tube body
- plate
- flow distribution
- cooling chamber
- distribution plate
- Prior art date
- 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 - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 107
- 241000883990 Flabellum Species 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 239000002131 composite material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
A kind of natural cooling equipment, is related to new material processing technique field.Including cooling chamber, web plate, blast pipe and flow distribution plate.Cooling chamber bottom offers air inlet, cooling chamber top outlet inlet.Web plate is set to cooling chamber for carrying object to be cooled.Blast pipe includes the first tube body and the second tube body, and the second tube body is connected to air inlet, and the first tube body is connected to the second tube body and is radially arranged along the second tube body.Flow distribution plate is set to the second tube body.Flow distribution plate is arranged in parallel and at interval wing plate with multiple, and multiple wing plates are perpendicular to plane where both the first tube body and the second tube body axial line.Multiple wing plates, which are protruded by flow distribution plate towards the second tube body, to be formed, and multiple wing plates are 40~70 ° with the angle of flow distribution plate.Flow distribution plate offers strip through-hole, and plane setting where both vertical first tube body of strip through-hole and the second tube body axial line, each wing plate both sides offer strip through-hole.Its cooling velocity mitigates uniformly, can sustainedly and stably cool down to composite material.
Description
Technical field
The utility model is related to new material processing technique fields, in particular to a kind of natural cooling equipment.
Background technology
The composite material of post-treated process is unable to rapid cooling, and rapid cooling can change the interior tissue knot of composite material
Structure and mechanical performance.For such composite material, a kind of type of cooling more mitigated is needed.
Utility model content
The purpose of this utility model is to provide a kind of natural cooling equipment, cooling velocity more mitigates, cooling procedure
Middle temperature reduction is more uniform, sustainedly and stably can carry out cooling processing to composite material.
What the embodiments of the present invention were realized in：
A kind of natural cooling equipment comprising：Cooling chamber, web plate, blast pipe and flow distribution plate.Cooling chamber has cooling chamber,
The bottom of cooling chamber offers the air inlet being connected to cooling chamber, and the outlet air being connected to cooling chamber is offered at the top of cooling chamber
Mouthful.Web plate is set to cooling chamber for carrying object to be cooled, and the periphery of web plate is connected with the madial wall of cooling chamber.Blast pipe
Including the first tube body and the second tube body, the second tube body is connected to air inlet and is coaxially disposed with air inlet, and the first tube body is the same as second
Tube body is connected to and along the radial direction setting of the second tube body.Flow distribution plate is set to the second tube body, and the periphery of flow distribution plate is the same as the interior of the second tube body
Wall connects.Flow distribution plate is set to the one of the close air inlet close to one end of the first tube body and positioned at the first tube body of the second tube body
Side.Flow distribution plate has multiple be mutually parallel and the wing plate of spaced setting, multiple wing plates are each perpendicular to the first tube body and second
Plane where both tube bodies axial line.Multiple wing plates are protruded to be formed towards the second tube body by flow distribution plate, same point of multiple wing plates
Angle between flowing plate is 40~70 °.Flow distribution plate is further opened with strip through-hole, and strip through-hole is perpendicular to the first tube body and second
Plane setting where both tube bodies axial line, the both sides of each wing plate offer strip through-hole.
Wherein, edge is parallel to the first tube body axial line and is directed toward the direction of the second tube body by the first tube body, opposite point of wing plate
The height of projection of flowing plate is incremented by, and the spacing between two neighboring wing plate is successively decreased.
Further, air inlet and outlet and web plate three coaxial arrangement.
Further, the side of the close air inlet of web plate is provided with flabellum.
Further, along the axial direction of the first tube body, the width of strip through-hole is equal between two wing plates adjacent thereto
Spacing.
Further, wing plate is 4, and edge is parallel to the first tube body axial line and is directed toward the side of the second tube body by the first tube body
To 4 wing plates are with respect to the height of projection ratio of flow distribution plate：1：1.3：1.5：1.7：2.
Further, wing plate is 4, and edge is parallel to the first tube body axial line and is directed toward the side of the second tube body by the first tube body
To the ratio between the spacing between two neighboring wing plate is：1：1.2：1.5.
Further, the feed inlet of natural cooling equipment is opened in the side wall of cooling chamber, and feed inlet is located at the close of web plate
The side of air outlet, feed inlet are removably covered with capping.
The advantageous effect of the utility model embodiment is：
Normal temperature air is as cooling media, Ke Yili outside the natural cooling equipment utilization room that the utility model embodiment provides
With delivery pump by outdoor normal temperature air by blast pipe be input to cooling chamber come to the material being located on web plate in cooling chamber into
Row cooling.
When normal temperature air enters the second tube body from the first tube body, normal temperature air meets with flow distribution plate.Due to along parallel
In the first tube body axial line and by the direction of the first tube body the second tube body of direction, wing plate is incremented by with respect to the height of projection of flow distribution plate,
The air stream of normal temperature air can be carried out multiple segmentation by wing plate, be divided air stream out then in the water conservancy diversion of corresponding wing plate
The strip through-hole close to the first tube body side through the wing plate enters the second tube body under effect.After flow distribution plate shunts, originally
Air stream in first tube body is divided into multiple small air streams and enters the second tube body, and these small air streams are along the plate of flow distribution plate
EDS maps come.Air stream can be greatly improved in this way into the uniformity after the second tube body, being distributed in the second tube body.So that
Air stream can more uniformly enter cooling chamber, so that it is guaranteed that air stream is to the equal of the cooling effect of the material in cooling chamber
Even property.
Further, since in the junction of the first tube body and the second tube body, air stream is turned to, certainly due to air stream
Body has certain kinetic energy, therefore air stream is when turning to, in side atmospheric density meeting of second tube body far from the first tube body
Higher.The airflow distribution that will result directly in this way in the second tube body is uneven, if such air stream is directly by the second pipe
Body enters cooling chamber, then necessarily causing the airflow distribution in cooling chamber uneven, or even generates vortex.This is by direct shadow
Ring lost effect of the air stream to heat in the uniformity and cooling chamber of object cooling-down effect.
The natural cooling equipment edge that the utility model embodiment provides is parallel to the first tube body axial line and by the first tube body
It is directed toward the direction of the second tube body, by the way that the spacing between two neighboring wing plate to be gradually reduced, i.e., closer to the first tube body
Side, the spacing between two neighboring wing plate is bigger, and between the side of the first tube body, two neighboring wing plate
Away from smaller.The spacing that this is allowed between the two neighboring wing plate in the bigger position of airflow density is smaller, and can enter
The amount of the air of strip through-hole between the two wing plates is also correspondingly restricted, so that the air for passing through flow distribution plate
Stream is more uniform along the plate face distribution of flow distribution plate.To ensure that the uniformity of airflow distribution in the second tube body, and then make cold
But temperature reduction is more uniform in cooling procedure for the material in room.
Further, since airflow distribution is more uniform, air stream is also more steady in flow process, in cooling chamber also not
It is easy to form vortex, it is cold to ensure to enable to take cooling chamber out of by air stream in time by the heat that material comes out
But effect is lasting, stable.Meanwhile by air outlet be set to cooling chamber top be also more convenient for heat scatter and disappear.
In general, the natural cooling equipment cooling velocity that the utility model embodiment provides more mitigates, cooling procedure
Middle temperature reduction is more uniform, sustainedly and stably can carry out cooling processing to composite material.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram for the natural cooling equipment that the utility model embodiment provides；
Fig. 2 is the schematic diagram of the flow distribution plate in the natural cooling equipment in Fig. 1.
Icon：1000- natural cooling equipment；100- cooling chambers；110- cooling chambers；120- air inlets；130- air outlets；
200- web plates；300- blast pipes；The first tube bodies of 310-；The second tube bodies of 320-；400- flow distribution plates；410- wing plates；420- bar shapeds are logical
Hole；500- flabellums；600- feed inlets；610- is covered.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In addition, term " parallel ", " vertical " etc. are not offered as requiring component absolute parallel or vertical, but can slightly incline
Tiltedly.It is not to indicate that the structure has to put down completely if " parallel " refers to only that its direction is more parallel with respect to for " vertical "
Row, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be directly connected, can also can be indirectly connected through an intermediary the company inside two elements
It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
Embodiment
Referring to Fig.1 and 2, the present embodiment provides a kind of natural cooling equipment 1000.Natural cooling equipment 1000 includes：
Cooling chamber 100, web plate 200, blast pipe 300 and flow distribution plate 400.
Cooling chamber 100 has cooling chamber 110, and the bottom of cooling chamber 100 offers the air inlet being connected to cooling chamber 110
120, the top of cooling chamber 100 offers the air outlet 130 being connected to cooling chamber 110.
Web plate 200 is set to cooling chamber 110 for carrying object to be cooled, and the periphery of web plate 200 is the same as cooling chamber 100
Madial wall connects.
Blast pipe 300 includes the first tube body 310 and the second tube body 320, and the second tube body 320 is connected to and same with air inlet 120
Air inlet 120 is coaxially disposed, and the first tube body 310 is connected to the second tube body 320 and along the radial direction setting of the second tube body 320.
Flow distribution plate 400 is set to the second tube body 320, and the periphery of flow distribution plate 400 is connected with the inner wall of the second tube body 320.Shunting
Plate 400 is set to one end of close first tube body 310 of the second tube body 320 and positioned at the close air inlet 120 of the first tube body 310
Side.Flow distribution plate 400 has multiple be mutually parallel and the wing plate of spaced setting 410, multiple wing plates 410 are each perpendicular to first
Plane where both tube body 310 and the second tube body 320 axial line.Multiple wing plates 410 are by flow distribution plate 400 towards the second tube body
320 protrusions are formed, and multiple wing plates 410 are 40~70 ° with the angle between flow distribution plate 400.Flow distribution plate 400 is further opened with bar shaped
Through-hole 420, strip through-hole 420 is perpendicular to the plane setting where both the first tube body 310 and the second tube body 320 axial line, often
The both sides of a wing plate 410 offer strip through-hole 420.
Wherein, edge is parallel to 310 axial line of the first tube body and is directed toward the direction of the second tube body 320, wing by the first tube body 310
Plate 410 is incremented by with respect to the height of projection of flow distribution plate 400, and the spacing between two neighboring wing plate 410 is successively decreased.
In the present embodiment, wing plate 410 is 4, and 4 wing plates 410 are 60 ° with the angle between flow distribution plate 400.Each
The both sides of wing plate 410 are respectively provided with there are one strip through-hole 420, and it is logical that a bar shaped is provided between two adjacent wing plates 410
Hole 420.
Natural cooling equipment 1000 can utilize delivery pump by the normal of outdoor using outdoor normal temperature air as cooling media
Warm air is input to cooling chamber 100 to be cooled down to the material being located on web plate 200 in cooling chamber 100 by blast pipe 300.
When normal temperature air enters the second tube body 320 from the first tube body 310, normal temperature air meets with flow distribution plate 400.By
It is parallel to 310 axial line of the first tube body in edge and is directed toward the direction of the second tube body 320 by the first tube body 310, opposite point of wing plate 410
The height of projection of flowing plate 400 is incremented by, and the air stream of normal temperature air can be carried out multiple segmentation by wing plate 410, is divided out
Air stream then under the guide functions of corresponding wing plate 410 through the wing plate 410 close to 310 side of the first tube body strip through-hole
420 enter the second tube body 320.After the shunting of flow distribution plate 400, the air stream in the first tube body 310 is divided into multiple originally
Small air stream enters the second tube body 320, and these small air streams are distributed to come along the plate face of flow distribution plate 400.It in this way can be significantly
It improves air stream and enters the uniformity being distributed in the second tube body 320 after the second tube body 320.So that air stream can more uniformly
Ground enters cooling chamber 100, so that it is guaranteed that uniformity of the air stream to the cooling effect of the material in cooling chamber 100.
Further, since in the junction of the first tube body 310 and the second tube body 320, air stream is turned to, due to sky
Air-flow itself has certain kinetic energy, therefore air stream is when turning to, the second tube body 320 far from first tube body 310 one
Side atmospheric density can higher.The airflow distribution that will result directly in this way in the second tube body 320 is uneven, if such air
Stream directly enters cooling chamber 100 by the second tube body 320, then necessarily cause the airflow distribution in cooling chamber 100 uneven,
Even generate vortex.This by directly affect air stream in the uniformity and cooling chamber 100 of object cooling-down effect heat scatter and disappear
Effect.
Natural cooling equipment 1000 along be parallel to 310 axial line of the first tube body and by the first tube body 310 be directed toward the second tube body
320 direction, by the way that the spacing between two neighboring wing plate 410 to be gradually reduced, i.e., closer to the one of the first tube body 310
Side, the spacing between two neighboring wing plate 410 is bigger, and further away from the side of the first tube body 310, two neighboring wing plate 410
Between spacing it is smaller.The spacing that this is allowed between the two neighboring wing plate in the bigger position of airflow density 410 is smaller, and
The amount of the air for the strip through-hole 420 that can be entered between the two wing plates 410 is also correspondingly restricted, so that
It is more uniform along the plate face distribution of flow distribution plate 400 by the air stream of flow distribution plate 400.To ensure that the second tube body 320 is hollow
The uniformity of air flow method, so make material in cooling chamber 100 in cooling procedure temperature reduce it is more uniform.
Further, since airflow distribution is more uniform, air stream is also more steady in flow process, in cooling chamber 100
Also it is not easily formed vortex, to enable the heat come out by material to take cooling chamber 100 out of by air stream in time, with
Ensure the lasting, stable of cooling effect.Meanwhile by air outlet 130 be set to cooling chamber 100 top be also more convenient for heat dissipate
It loses.
Further, in the present embodiment, air inlet 120, air outlet 130 and 200 three of web plate coaxial arrangement.
Further, the side of the close air inlet 120 of web plate 200 is provided with flabellum 500.The shaft of flabellum 500 connects
In web plate 200.When the air stream in the second tube body 320 enters cooling chamber 100 and blows to web plate 200, air stream can make flabellum
500 rotate, and due to the agitaion of flabellum 500, air stream can be made to be distributed along web plate 200 more uniform, to ensure sky
Air-flow can be fully cooled the material on web plate 200, improve the cooling uniformity.
Further, along the axial direction of the first tube body 310, the width of strip through-hole 420 is equal to two wing plates adjacent thereto
Spacing between 410, air stream of being more convenient in this way pass through flow distribution plate 400.
Further, edge is parallel to 310 axial line of the first tube body and is directed toward the side of the second tube body 320 by the first tube body 310
To 4 wing plates 410 are with respect to the height of projection ratio of flow distribution plate 400：1：1.3：1.5：1.7：2.
Further, edge is parallel to 310 axial line of the first tube body and is directed toward the side of the second tube body 320 by the first tube body 310
To the ratio between the spacing between two neighboring wing plate 410 is：1：1.2：1.5.
Further, the feed inlet 600 of natural cooling equipment 1000 is opened in the side wall of cooling chamber 100, feed inlet 600
In the side of the close air outlet 130 of web plate 200, feed inlet 600 is removably covered with capping 610, so as to to material into
Row is replaced.
In conclusion 1000 cooling velocity of natural cooling equipment more mitigates, temperature reduces more uniform in cooling procedure,
Can cooling processing sustainedly and stably be carried out to composite material.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of natural cooling equipment, which is characterized in that including：
Cooling chamber, the cooling chamber have cooling chamber, and the bottom of the cooling chamber offers the air inlet being connected to the cooling chamber
Mouthful, offer the air outlet being connected to the cooling chamber at the top of the cooling chamber；
Set on the cooling chamber for carrying the web plate of object to be cooled, the inside of the periphery of the web plate with the cooling chamber
Wall connects；
Blast pipe, the blast pipe include the first tube body and the second tube body, second tube body be connected to the air inlet and together
The air inlet coaxial arrangement, first tube body are connected to second tube body and along the radial direction settings of second tube body；
Set on the flow distribution plate of second tube body, the periphery of the flow distribution plate is connected with the inner wall of second tube body, described point
Flowing plate is set to the close air inlet close to one end of first tube body and positioned at first tube body of second tube body
The side of mouth；The flow distribution plate has multiple be mutually parallel and the wing plate of spaced setting, multiple wing plates are each perpendicular to
Plane where both first tube body and second tube body axial line；Multiple wing plates are by the flow distribution plate direction
Second tube body protrudes to be formed, and multiple wing plates are 40~70 ° with the angle between the flow distribution plate；The flow distribution plate
It is further opened with strip through-hole, the strip through-hole is where both first tube body and second tube body axial line
Plane is arranged, and the both sides of each wing plate offer the strip through-hole；
Edge is parallel to the first tube body axial line and is directed toward the direction of second tube body, the wing plate by first tube body
The height of projection of the relatively described flow distribution plate is incremented by, and the spacing between the two neighboring wing plate is successively decreased.
2. natural cooling equipment according to claim 1, which is characterized in that the air inlet, the air outlet and described
Web plate three is coaxially disposed.
3. natural cooling equipment according to claim 1, which is characterized in that the one of the close air inlet of the web plate
Side is provided with flabellum.
4. natural cooling equipment according to claim 1, which is characterized in that along the axial direction of first tube body, the item
The width of shape through-hole is equal to the spacing between two wing plates adjacent thereto.
5. natural cooling equipment according to claim 1, which is characterized in that the wing plate is 4, along being parallel to described the
One tube body axial line and the direction that second tube body is directed toward by first tube body, the relatively described flow distribution plate of 4 wing plates
Height of projection ratio be：1：1.3：1.5：1.7：2.
6. natural cooling equipment according to claim 1, which is characterized in that the wing plate is 4, along being parallel to described the
One tube body axial line and the direction that second tube body is directed toward by first tube body, the spacing between the two neighboring wing plate
The ratio between be：1：1.2：1.5.
7. natural cooling equipment according to claim 1, which is characterized in that the feed inlet of the natural cooling equipment opens up
In the side wall of the cooling chamber, the feed inlet is located at the side of the close air outlet of the web plate, and the feed inlet can
Releasably it is covered with capping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636666.1U CN207619456U (en) | 2017-11-29 | 2017-11-29 | A kind of natural cooling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636666.1U CN207619456U (en) | 2017-11-29 | 2017-11-29 | A kind of natural cooling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207619456U true CN207619456U (en) | 2018-07-17 |
Family
ID=62824821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721636666.1U Expired - Fee Related CN207619456U (en) | 2017-11-29 | 2017-11-29 | A kind of natural cooling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207619456U (en) |
-
2017
- 2017-11-29 CN CN201721636666.1U patent/CN207619456U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103732035B (en) | A kind of rack of heat exchanger plates, heat exchanger and communication base station | |
| CN204757260U (en) | Air supply system and phytotron | |
| CN208321066U (en) | A kind of drainage device and coal pulverizer in coal pulverizer inlet air duct | |
| CN108679815A (en) | Intelligent balanced ventilation device and method | |
| CN108613257A (en) | Air conditioner | |
| CN106403134A (en) | Ceiling machine and control method thereof | |
| CN104457103B (en) | Air channel structure and refrigerator | |
| CN207619456U (en) | A kind of natural cooling equipment | |
| WO2021022895A1 (en) | Mixed-flow fan and air conditioner | |
| CN103291943A (en) | Throttle dropping equipment | |
| WO2019037592A1 (en) | Draught fan and air conveying equipment | |
| CN206073260U (en) | Indoor apparatus of air conditioner and air-conditioning | |
| CN205980209U (en) | Air supply device and air -out orifice plate thereof | |
| CN103982954A (en) | Air-conditioner outdoor unit and outdoor unit faceplate thereof | |
| CN208567024U (en) | Intelligent balanced ventilation device | |
| CN104990101A (en) | Gas boiler flow guide and air distribution plate | |
| CN205669863U (en) | A kind of supply air system and apply its indoor set and air-conditioning | |
| CN207660735U (en) | A kind of guiding device, a kind of air filter and a kind of engine | |
| CN209013343U (en) | Blower fan apparatus and air conditioner indoor unit equipped with it | |
| CN207162889U (en) | A kind of KPX types flat board swirl diffuser | |
| CN207569998U (en) | Indoor air devider and air conditioner | |
| CN209386502U (en) | A kind of plenum chamber of inverted speed distribution | |
| CN208154622U (en) | Wall attachment jet air supply device at a kind of arc column of combination fan coil | |
| CN207113030U (en) | Indoor set and air-conditioning system | |
| CN206222599U (en) | Ceiling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 |