CN210741616U - Modified asphalt storage tank level gauge - Google Patents
Modified asphalt storage tank level gauge Download PDFInfo
- Publication number
- CN210741616U CN210741616U CN201921784156.8U CN201921784156U CN210741616U CN 210741616 U CN210741616 U CN 210741616U CN 201921784156 U CN201921784156 U CN 201921784156U CN 210741616 U CN210741616 U CN 210741616U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- storage tank
- asphalt storage
- pipe
- column
- 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
Images
Abstract
The utility model relates to the field of asphalt storage equipment, and discloses a modified asphalt storage tank liquid level meter, which comprises a guide pipe, wherein one end of the guide pipe is fixedly connected with a flange plate, the flange plate is fixedly butted with an upper end opening of an asphalt storage tank, the other end of the guide pipe is fixedly butted with a liquid level indicator, and the liquid level indicator is vertically fixed on the surface of the asphalt storage tank; rotatable pulleys are arranged on the two sides in the guide pipe, and traction ropes are arranged on the pulleys; one end of the traction rope penetrates through a wire hole arranged on the flange plate to extend into the asphalt storage tank and is fixedly connected with the floating ball, and the other end of the traction rope extends into the liquid level indicator and is fixedly connected with the first heavy hammer. The utility model provides a current pitch storage tank float ball formula level gauge of establishing generally adopt to invert the reading for people can not be quick, accurate the pitch liquid level height's in the reading pitch storage tank problem.
Description
Technical Field
The utility model relates to a pitch storage device field specifically indicates a modified asphalt storage tank level gauge.
Background
The modified asphalt is an asphalt binder prepared by adding external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers or by adopting measures such as mild oxidation processing of the asphalt and the like, so that the performance of the asphalt or the asphalt mixture is improved. Storage and storage of modified asphalt typically employs asphalt storage tanks. And in the storage process of asphalt storage tank, under normal atmospheric temperature state, modified asphalt is solid or semi-solid state in the asphalt storage tank, and all modified asphalt storage tanks all generally all are equipped with heating device and make things convenient for to the heating of jar body when modified asphalt needs to be transported and use, thereby make in jar interior pitch become liquid and make it discharge in can following the asphalt storage tank.
In order to conveniently observe the content of residual asphalt in the asphalt tank, a liquid level meter is usually required to be additionally arranged outside the asphalt storage tank so as to visually acquire the content data of the asphalt in the asphalt storage tank. Because of the special properties of asphalt, a floating ball type liquid level meter is generally adopted, because the common glass liquid level meter cannot accurately measure the liquid level height of the asphalt when the asphalt is solid, and a more precise radar liquid level meter can cause the failure of the asphalt due to the condensation of asphalt smoke on a receiving surface of the radar liquid level meter, wherein the asphalt smoke is generated in the heating and liquefying process of the asphalt.
However, the existing floating ball type liquid level meter has problems, and due to the characteristics of the floating ball type liquid level meter, the reading of the liquid level indicator part of the floating ball type liquid level meter is inverted, so that the common habit of reading the height of people is violated, and the quick and accurate reading of the asphalt liquid level in the asphalt storage tank is not facilitated.
SUMMERY OF THE UTILITY MODEL
Based on above technical problem, the utility model provides a modified asphalt storage tank level gauge has solved the general adoption of current pitch storage tank float ball formula level gauge and has invertd the reading for people can not be quick, accurate the pitch liquid level height's in the reading pitch storage tank problem.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
a modified asphalt storage tank liquid level meter comprises a guide pipe, wherein one end of the guide pipe is fixedly connected with a flange, the flange is fixedly butted with an opening at the upper end of an asphalt storage tank, the other end of the guide pipe is fixedly butted with a liquid level indicator, and the liquid level indicator is vertically fixed on the surface of the asphalt storage tank; rotatable pulleys are arranged on the two sides in the guide pipe, and traction ropes are arranged on the pulleys; one end of a traction rope penetrates through a wire hole arranged on the flange plate to extend into the asphalt storage tank and is fixedly connected with the floating ball, and the other end of the traction rope extends into the liquid level indicator and is fixedly connected with a first heavy hammer; the liquid level indicator consists of a first liquid level pipe and a second liquid level pipe, the bottoms of the first liquid level pipe and the second liquid level pipe are mutually communicated, the first liquid level pipe is made of opaque materials, and a first heavy hammer and the first liquid level pipe are movably sealed; the second liquid level pipe is made of transparent materials, a second counter weight movably sealed with the second liquid level pipe is arranged in the second liquid level pipe, liquid level indicating liquid with colors is arranged between the first counter weight and the second counter weight, and the weight of the first counter weight is larger than that of the second counter weight.
The utility model discloses in, in the use of floater formula level gauge, the floater is located the pitch liquid level, and along with pitch injection or discharge, the floater can come up the floating or descend along with the change of pitch liquid level, and the direction rope can drive the corresponding decline of first weight or rise. If the asphalt liquid level rises and the floating ball rises, the first heavy hammer can descend to push the liquid level indicating liquid to enter the second liquid level pipe from the first liquid level pipe, and the liquid level of the liquid level indicating liquid in the second liquid level pipe rises at the moment. If the asphalt liquid level descends, the floating ball descends, the first heavy hammer ascends, the second heavy hammer pushes the liquid level indicating liquid to enter the first liquid level pipe from the second liquid level pipe, and the liquid level of the liquid level indicating liquid in the second liquid level pipe descends at the moment. In the floating ball liquid level meter, the change of the asphalt liquid level and the liquid level height of the liquid level indicating liquid in the second liquid level pipe are changed in the same direction, so that the problem of inverted reading of the existing asphalt storage tank liquid level meter is solved.
As a preferable mode, a limiting mechanism for limiting the floating ball to avoid the floating ball from deviating is arranged in the asphalt storage tank, the limiting mechanism comprises a metal heavy block placed at the bottom of the asphalt storage tank, and at least three guide ropes are arranged on the upper surface of the metal heavy block in a surrounding manner; the upper end of the guide rope is fixed on the flange plate through a locking mechanism, and the floating ball can only move up and down along the space enclosed by the guide rope.
As a preferred mode, the locking mechanism comprises a locking column arranged at the upper end of the flange plate, the upper part of the locking column is a conical column, the lower part of the locking column is a round column, and the locking column and the flange plate are provided with through holes for the guide rope to pass through; the conical column is provided with a plurality of openings in a surrounding manner, and the openings divide the conical column into a plurality of locking petals; the circular column is sleeved with a locking sleeve through threads, and the upper part of the locking sleeve is provided with a tapered hole matched with the tapered column.
Preferably, the pulley is provided with an annular shallow groove for placing the traction rope.
Preferably, the surface of the second liquid level pipe is provided with scale marks.
Preferably, the floating ball is a hollow sphere.
As a preferred mode, the lower surface of the metal weight is provided with anti-skid lines.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides a current pitch storage tank float ball formula level gauge of establishing generally adopt to invert the reading for people can not be quick, accurate the pitch liquid level height's in the reading pitch storage tank problem.
(2) The utility model discloses an be equipped with in the pitch storage tank and carry out spacing stop gear who avoids the floater skew to the floater, stop gear is including placing with the metal pouring weight of pitch storage tank bottom, metal pouring weight upper surface is surrounded and is equipped with and is no less than three guide lines; the upper end of the guide rope is fixed on the flange plate through a locking mechanism, and the floating ball can only move up and down along the space enclosed by the guide rope. The floating ball is limited by the guide ropes, and the contact surface between the line and the spherical surface is small. Not only can ensure that the floating ball is correctly guided, but also can prevent the floating ball from being stuck with the guide rope when the asphalt is solidified, so that the floating ball can not move.
(3) The locking mechanism comprises a locking column arranged at the upper end of the flange plate, the upper part of the locking column is a conical column, the lower part of the locking column is a circular column, and the locking column and the flange plate are provided with through holes for the guide ropes to pass through; the conical column is provided with a plurality of openings in a surrounding manner, and the openings divide the conical column into a plurality of locking petals; the circular column is sleeved with a locking sleeve through threads, and the upper part of the locking sleeve is provided with a tapered hole matched with the tapered column. The length of the guide rope can be adjusted by using the locking mechanism, so that the device is convenient for being suitable for asphalt storage tanks of various specifications and is also convenient for the installation and maintenance of the whole floating ball type liquid level meter mechanism.
(4) The utility model discloses a be equipped with the annular shallow slot that is used for placing the haulage rope on the pulley, annular shallow slot plays limiting displacement to the haulage rope, prevents that its skew from breaking away from the pulley.
(5) The utility model discloses a second liquid level pipe surface is equipped with the scale sign for people can be through the audio-visual liquid level height who reads pitch in the pitch storage tank of liquid level sign.
(6) The utility model discloses a floater is hollow spheroid, and hollow floater's buoyancy is bigger.
(7) The utility model discloses a metal pouring weight lower surface is equipped with anti-skidding line, strengthens the stability of metal pouring weight, prevents that the metal pouring weight from removing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
FIG. 3 is a schematic view of the assembly of the floating ball type level gauge with the asphalt storage tank.
Fig. 4 is a schematic view of the internal structure of fig. 3.
Fig. 5 is a front view of fig. 3.
The asphalt storage tank comprises a guide pipe 1, a pulley 2, a traction rope 3, a first heavy hammer 4, a first liquid level pipe 5, a second liquid level pipe 6, a second heavy hammer 7, a metal weight 8, a floating ball 9, a guide rope 10, a locking sleeve 11, a locking column 12, a flange 13 and an asphalt storage tank 14.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example 1:
referring to fig. 1-5, a modified asphalt storage tank 14 liquid level meter comprises a guide tube 1, wherein one end of the guide tube 1 is fixedly connected with a flange 13, the flange 13 is fixedly butted with an opening at the upper end of an asphalt storage tank 14, the other end of the guide tube 1 is fixedly butted with a liquid level indicator, and the liquid level indicator is vertically fixed on the surface of the asphalt storage tank 14; rotatable pulleys 2 are arranged on two sides in the guide tube 1, and a traction rope 3 is arranged on the pulleys 2; one end of a traction rope 3 penetrates through a wire hole arranged on the flange plate 13, extends into the asphalt storage tank 14 and is fixedly connected with the floating ball 9, and the other end of the traction rope 3 extends into the liquid level indicator and is fixedly connected with a first heavy hammer 4; the liquid level indicator consists of a first liquid level pipe 5 and a second liquid level pipe 6 which are communicated with each other at the bottoms, wherein the first liquid level pipe 5 is made of opaque materials, and a first heavy hammer 4 and the first liquid level pipe 5 are movably sealed; the second liquid level pipe 6 is made of transparent material, a second counter weight 7 movably sealed with the second liquid level pipe 6 is arranged in the second liquid level pipe 6, liquid level indicating liquid with color is arranged between the first counter weight 4 and the second counter weight 7, and the weight of the first counter weight 4 is larger than that of the second counter weight 7.
In the use process of the floating ball 9 type liquid level meter, the floating ball 9 is positioned on the asphalt liquid level, along with the injection or discharge of asphalt, the floating ball 9 can float upwards or descend along with the change of the asphalt liquid level, and the guide rope 10 can drive the first heavy hammer 4 to correspondingly descend or ascend. If the asphalt liquid level rises and the floating ball 9 rises, the first weight 4 will drop and push the liquid level indicator liquid from the first liquid level pipe 5 into the second liquid level pipe 6, and the liquid level of the liquid level indicator liquid in the second liquid level pipe 6 rises. If the asphalt liquid level drops and the floating ball 9 drops, the first weight 4 will rise, and the second weight 7 will push the liquid level indicator liquid from the second liquid level pipe 6 into the first liquid level pipe 5, at which time the liquid level of the liquid level indicator liquid in the second liquid level pipe 6 drops. In the floating ball 9 liquid level meter, the change of the liquid level of the asphalt and the liquid level height of the liquid level indicating liquid in the second liquid level pipe 6 are changed in the same direction, so that the problem of inverted reading of the existing asphalt storage tank 14 liquid level meter is avoided.
The liquid level indicating liquid can be in colors with obvious distinction degree such as red or blue, and the height of the liquid level indicating liquid can be read more easily by people.
In the present embodiment, it is preferred that,
example 2:
referring to fig. 1-5, a modified asphalt storage tank 14 liquid level meter comprises a guide tube 1, wherein one end of the guide tube 1 is fixedly connected with a flange 13, the flange 13 is fixedly butted with an opening at the upper end of an asphalt storage tank 14, the other end of the guide tube 1 is fixedly butted with a liquid level indicator, and the liquid level indicator is vertically fixed on the surface of the asphalt storage tank 14; rotatable pulleys 2 are arranged on two sides in the guide tube 1, and a traction rope 3 is arranged on the pulleys 2; one end of a traction rope 3 penetrates through a wire hole arranged on the flange plate 13, extends into the asphalt storage tank 14 and is fixedly connected with the floating ball 9, and the other end of the traction rope 3 extends into the liquid level indicator and is fixedly connected with a first heavy hammer 4; the liquid level indicator consists of a first liquid level pipe 5 and a second liquid level pipe 6 which are communicated with each other at the bottoms, wherein the first liquid level pipe 5 is made of opaque materials, and a first heavy hammer 4 and the first liquid level pipe 5 are movably sealed; the second liquid level pipe 6 is made of transparent material, a second counter weight 7 movably sealed with the second liquid level pipe 6 is arranged in the second liquid level pipe 6, liquid level indicating liquid with color is arranged between the first counter weight 4 and the second counter weight 7, and the weight of the first counter weight 4 is larger than that of the second counter weight 7.
Furthermore, a limiting mechanism for limiting the floating ball 9 to avoid the floating ball 9 from deviating is arranged in the asphalt storage tank 14, the limiting mechanism comprises a metal weight 8 placed at the bottom of the asphalt storage tank 14, and at least three guide lines are arranged on the upper surface of the metal weight 8 in a surrounding manner; the upper end of the guide rope 10 is fixed on the flange 13 through a locking mechanism, and the floating ball 9 can only move up and down along the space enclosed by the guide rope 10. The floating ball 9 is limited by a plurality of guide ropes 10, and the contact surface between the lines and the spherical surface is small. Not only can ensure that the floating ball 9 is correctly guided, but also can prevent the floating ball 9 from being stuck with the guide rope 10 when the asphalt is solidified, so that the floating ball 9 can not move.
Furthermore, the locking mechanism comprises a locking column 12 arranged at the upper end of the flange plate 13, the upper part of the locking column 12 is a conical column, the lower part of the locking column 12 is a round column, and the locking column 12 and the flange plate 13 are provided with through holes for the guide rope 10 to pass through; the conical column is provided with a plurality of openings in a surrounding manner, and the openings divide the conical column into a plurality of locking petals; the round column is sleeved with a locking sleeve 11 through threads, and the upper part of the locking sleeve 11 is provided with a tapered hole matched with the tapered column.
When the locking sleeve 10 is screwed down, the tapered hole of the locking sleeve 11 presses the locking lobes of the locking post 12 to close and clamp the guide rope 10 to be fixed. The length of the guide rope 10 can be adjusted by using the locking mechanism, so that the device is convenient for being suitable for asphalt storage tanks 14 of various specifications and is also convenient for the installation and maintenance of the integral floating ball 9 type liquid level meter mechanism.
Furthermore, the pulley 2 is provided with an annular shallow groove for placing the traction rope 3, and the annular shallow groove has a limiting effect on the traction rope 3 and prevents the traction rope from deviating from the pulley 2.
Furthermore, the surface of the second liquid level pipe 6 is provided with scale marks, so that people can visually read the liquid level height of the asphalt in the asphalt storage tank 14 through the liquid level marks.
Furthermore, the floating ball 9 is a hollow ball body, and the buoyancy of the hollow floating ball 9 is larger.
Further, the lower surface of the metal weight 8 is provided with anti-skid lines, so that the stability of the metal weight 8 is enhanced, and the metal weight 8 is prevented from moving.
The other parts of this embodiment are the same as embodiment 1, and are not described herein again.
The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly showing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model, the patent protection scope of the utility model is still subject to the claims, all the equivalent structural changes made by using the contents of the specification and the drawings of the utility model are included in the protection scope of the utility model.
Claims (7)
1. The utility model provides a modified asphalt storage tank level gauge which characterized in that: the asphalt storage tank is characterized by comprising a guide pipe (1), wherein one end of the guide pipe (1) is fixedly connected with a flange plate (13), the flange plate (13) is fixedly butted with an opening at the upper end of an asphalt storage tank (14), the other end of the guide pipe (1) is fixedly butted with a liquid level indicator, and the liquid level indicator is vertically fixed on the surface of the asphalt storage tank (14); rotatable pulleys (2) are arranged on two sides in the guide tube (1), and a traction rope (3) is arranged on each pulley (2); one end of the traction rope (3) penetrates through a wire hole arranged on the flange plate (13) to extend into the asphalt storage tank (14) and is fixedly connected with the floating ball (9), and the other end of the traction rope (3) extends into the liquid level indicator and is fixedly connected with the first heavy hammer (4); the liquid level indicator is composed of a first liquid level pipe (5) and a second liquid level pipe (6) which are communicated with each other at the bottoms, the first liquid level pipe (5) is made of opaque materials, and a first heavy hammer (4) and the first liquid level pipe (5) are movably sealed; the liquid level indicator is characterized in that the second liquid level pipe (6) is made of transparent materials, a second heavy hammer (7) movably sealed with the second liquid level pipe (6) is arranged in the second liquid level pipe (6), liquid level indicating liquid with colors is arranged between the first heavy hammer (4) and the second heavy hammer (7), and the weight of the first heavy hammer (4) is larger than that of the second heavy hammer (7).
2. The modified asphalt storage tank liquid level gauge according to claim 1, wherein: a limiting mechanism for limiting the floating ball (9) to avoid the floating ball (9) from deviating is arranged in the asphalt storage tank (14), the limiting mechanism comprises a metal weight (8) placed at the bottom of the asphalt storage tank (14), and at least three guide ropes (10) are arranged on the upper surface of the metal weight (8) in a surrounding mode; the upper end of the guide rope (10) is fixed on the flange plate (13) through a locking mechanism, and the floating ball (9) can only move up and down along the space enclosed by the guide rope (10).
3. The modified asphalt storage tank liquid level gauge according to claim 2, wherein: the locking mechanism comprises a locking column (12) arranged at the upper end of a flange plate (13), the upper part of the locking column (12) is a conical column, the lower part of the locking column is a round column, and through holes for the guide rope (10) to pass through are formed in the locking column (12) and the flange plate (13); the conical column is provided with a plurality of openings in a surrounding manner, and the openings divide the conical column into a plurality of locking petals; the round column is sleeved with a locking sleeve (11) through threads, and the upper part of the locking sleeve (11) is provided with a tapered hole matched with the tapered column.
4. The modified asphalt storage tank liquid level gauge according to claim 1, wherein: and the pulley (2) is provided with an annular shallow groove for placing the traction rope (3).
5. The modified asphalt storage tank liquid level gauge according to claim 1, wherein: and the surface of the second liquid level pipe (6) is provided with scale marks.
6. The modified asphalt storage tank liquid level gauge according to claim 1, wherein: the floating ball (9) is a hollow sphere.
7. The modified asphalt storage tank liquid level gauge according to claim 2, wherein: the lower surface of the metal weight (8) is provided with anti-skid lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921784156.8U CN210741616U (en) | 2019-10-22 | 2019-10-22 | Modified asphalt storage tank level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921784156.8U CN210741616U (en) | 2019-10-22 | 2019-10-22 | Modified asphalt storage tank level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210741616U true CN210741616U (en) | 2020-06-12 |
Family
ID=70984096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921784156.8U Expired - Fee Related CN210741616U (en) | 2019-10-22 | 2019-10-22 | Modified asphalt storage tank level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210741616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699968A (en) * | 2022-04-01 | 2022-07-05 | 江苏旺达特种设备制造有限公司 | High-efficient preheating tank of pitch |
-
2019
- 2019-10-22 CN CN201921784156.8U patent/CN210741616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699968A (en) * | 2022-04-01 | 2022-07-05 | 江苏旺达特种设备制造有限公司 | High-efficient preheating tank of pitch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210741616U (en) | Modified asphalt storage tank level gauge | |
| CN210741615U (en) | Floating ball type liquid level meter for modified asphalt storage tank | |
| US3597973A (en) | Combined level indicator and hydrometer | |
| US2677816A (en) | Floating roof tank warning device | |
| CN212611506U (en) | Liquid level detection device in detergent box, detergent box and washing machine | |
| NO122708B (en) | ||
| CN206514916U (en) | Alarm type magnetic double level gauge | |
| CN206146498U (en) | Accurate level gauge of jar body | |
| US7066024B2 (en) | Float adapted to track an interface between two liquids of differing density | |
| CN209783699U (en) | Lever type buoy liquid level meter for asphalt storage tank | |
| DE3939450A1 (en) | Level measurement unit for motor vehicle fuel tank - measures stresses or strains at container attachment points or sprung container suspension | |
| CN205384068U (en) | Multifunctional liquid level indicator | |
| CN210142435U (en) | Portable buoyancy experiment demonstration device for physical teaching | |
| US3367184A (en) | Liquid level indicator | |
| CN111256733B (en) | Instrument probe protection device and measuring equipment | |
| CN218545845U (en) | Asphalt liquid level meter device | |
| CN215261954U (en) | Novel magnetic flap liquid level meter | |
| CN207095656U (en) | Boundary's liquid level gauge | |
| CN219869872U (en) | Water level gauge fixed establishment and waste water pond water level early warning device | |
| CN201853782U (en) | Liquid state indicating device | |
| CN209821019U (en) | Printing ink anti-settling performance testing device | |
| CN220525060U (en) | Detection device for monitoring light-shielding reagent allowance in real time | |
| CN219511632U (en) | Water level monitoring device suitable for hydraulic engineering | |
| CN216765761U (en) | Mooring post with high-precision pressure sensor detection device | |
| CN2278207Y (en) | Magnetic liquid level measuring indication instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20201022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |