CN111678406A - Wallboard detection device is used to architectural decoration fitment - Google Patents
Wallboard detection device is used to architectural decoration fitment Download PDFInfo
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- CN111678406A CN111678406A CN202010470383.4A CN202010470383A CN111678406A CN 111678406 A CN111678406 A CN 111678406A CN 202010470383 A CN202010470383 A CN 202010470383A CN 111678406 A CN111678406 A CN 111678406A
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- wallboard
- pressure
- device base
- sliding
- fixed plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/16—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces applied through gearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a wallboard detection device for building decoration, which relates to the field of wallboard detection devices and comprises a device base, wherein a detection desktop is arranged on the outer surface of the upper end of the device base, a pressure sensor is fixedly arranged in the middle of the detection desktop, a fixed plate edge mechanism is arranged on the outer surface of the upper end of the detection desktop, a constructional column is fixedly connected to the outer surface of the rear end of the device base, a pressure display meter is fixedly arranged on the outer surface of the front end of the device base, and a pressure measuring mechanism is fixedly connected to the outer surface of one end of the constructional column. According to the invention, through the arrangement of the fixing plate edge mechanism, the pressure measuring mechanism, the pressure sensor and the pressure display meter, the position of the wallboard can be well fixed during sampling inspection, the length, the width and the thickness of the wallboard can be measured, the compression resistance of the wallboard can be tested in real time, the operation is simple and convenient, the overall efficiency of wallboard detection can be improved, and the using effect is better than that of the traditional mode.
Description
Technical Field
The invention relates to the field of wallboard detection devices, in particular to a wallboard detection device for building decoration.
Background
Wallboard detection device for architectural decoration is a device that carries out the sample detection to the wallboard that the decoration used in the building, makes things convenient for the quality control personnel to detect wallboard for the decoration to formulate corresponding quality control report.
The existing wallboard detection device for building decoration has certain defects when in use, and when in sampling inspection, the position of a wallboard cannot be well fixed, the length, the width and the thickness of the wallboard are measured, and the compression resistance of the wallboard cannot be tested in real time.
Disclosure of Invention
The invention mainly aims to provide a wallboard detection device for building decoration, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a wallboard detection device for architectural decoration fitment, includes the device base, the upper end surface of device base is provided with the detection desktop, the middle part fixed mounting who detects the desktop has pressure sensor, the upper end surface that detects the desktop is provided with solid fixed plate limit mechanism, the rear end external surface fixed connection of device base has the constructional column, the front end external surface fixed mounting of device base has the pressure display table, the one end external surface fixed connection of constructional column has pressure measurement mechanism.
Preferably, the fixed plate edge mechanism comprises a lifting fixed plate, a sliding column, a bolt opening, a sliding groove and a fixed hole, the sliding column is located at two ends of the lifting fixed plate, the bolt opening is located on the outer surface of one side of the sliding column, the sliding groove is located on the outer surface of the front end of the sliding column, the fixed hole is located on the outer surface of one side of the lifting fixed plate, and two ends of the lifting fixed plate are connected with the outer surface of the sliding column in a sliding mode through the sliding groove.
Preferably, the number of the fixed plate edge mechanisms and the number of the lifting fixed plates are two, the number of the sliding columns and the number of the fixed holes are four, the number of the sliding chutes is eight, and the number of the plug pin openings is twenty.
Preferably, the pressure measuring mechanism comprises a rack, a toothed bar, a pressure applying head, a transmission rod, a rotary rod and a transmission gear, the toothed bar is located in the middle of the rack, the pressure applying head is located on the outer surface of the lower end of the toothed bar, the transmission gear is located on the outer surface of one side of the toothed bar, the transmission gear is located on the outer surface of one end of the transmission rod, the rotary rod is located at the other end of the transmission rod, one end of the rotary rod penetrates through the middle of the transmission rod, the outer surface of the rotary rod is movably connected with the middle of the transmission gear through the transmission rod, the transmission gear is meshed with the toothed bar, the outer surface of the toothed bar is movably connected with.
Preferably, the inside fixed mounting of device base has the power, one side surface of device base is provided with the power cord, power cord and power electric connection, pressure sensor and pressure display table all with power electric connection.
Preferably, the outer surface all around of device base is provided with the length scale ruler, the quantity of length scale ruler is four groups, the outer fixed surface of the lower extreme of device base is connected with the fixed column, the quantity of fixed column is four groups.
Preferably, the pressure sensor comprises a resistance strain gauge and a signal processing unit, the resistance strain gauge is electrically connected with the signal processing unit, the pressure sensor is electrically connected with the pressure display meter through the signal processing unit, and the pressure display meter comprises a pressure signal conversion mechanism and a digital display screen.
Preferably, the outer surface of the rear end of the device base is fixedly connected with the outer surface of the rear end of the pressure measuring mechanism through a constructional column.
Compared with the prior art, the invention has the following beneficial effects:
1. through the fixed flange limit mechanism that sets up, the position of fixed wallboard that can be fine, carry out the measurement of length and width thickness to it, during the sampling inspection, pass the model from lift fixed plate below, place on detecting the desktop, slide the fixed plate on the slip post and push down, after the compaction, get the metal bolt and run through the fixed orifices and penetrate in the bolt mouth, can realize fixing, and the bolt mouth is thick according to common board and is provided with five groups, in order to adapt to common wallboard thickness, length scale all around can be measured the length and width of wallboard through device base, and measure its thickness through corresponding short ruler, be favorable to people to detect on next step.
2. After the wallboard is fixed by the fixing plate edge mechanism, the transmission rod is driven to rotate by clockwise rotating the rotating rod, so as to drive the internal transmission gear to rotate, the transmission gear is meshed and connected with the toothed bar, the transmission gear drives the outer surface of the toothed bar to rotate in a threaded manner, so that the toothed bar moves downwards, the pressing head presses downwards to press the wallboard, at the moment, the lower pressure sensor converts the change of strain on a mechanical component into resistance change and transmits the resistance change to the signal processing unit through the internal resistance strain gauge and further transmits the resistance change to the pressure signal conversion mechanism in the pressure display meter, the pressure signal conversion mechanism converts the resistance signal into a pressure numerical value signal and further displays the pressure value on the digital display screen until the pressure is applied until the pressure limit of the wallboard is damaged, the record pressure value reaches the compressive strength who surveys the wallboard, and back anticlockwise rotation rotary rod can reset pressure measurement mechanism, and is easy and simple to handle, can improve the overall efficiency that the wallboard detected, and the effect of use is better for traditional mode.
Drawings
FIG. 1 is a schematic view of the overall structure of a wallboard inspection device for architectural decoration according to the present invention;
FIG. 2 is a schematic structural diagram of a board edge fixing mechanism in the wallboard detection device for architectural decoration according to the present invention;
FIG. 3 is a schematic structural view of a pressure measuring mechanism in the wallboard detecting device for architectural decoration according to the present invention;
FIG. 4 is a schematic structural diagram of a base of the wall panel inspection device for architectural decoration according to the present invention;
FIG. 5 is a schematic view of the internal structure of the base of the wall panel inspection device for architectural decoration according to the present invention;
FIG. 6 is a side view of a plate edge fixing mechanism of a wall plate detection device for architectural decoration according to the present invention;
fig. 7 is a schematic structural principle diagram of a pressure measuring mechanism in the wallboard detecting device for architectural decoration of the present invention.
In the figure: 1. a plate edge fixing mechanism; 101. a lifting fixing plate; 102. a sliding post; 103. a bolt port; 104. a chute; 105. a fixing hole; 2. a pressure measuring mechanism; 201. a frame; 202. a rack bar; 203. applying a pressure head; 204. a transmission rod; 205. rotating the rod; 206. a transmission gear; 3. a pressure sensor; 4. a device base; 5. detecting a desktop; 6. constructing a column; 7. a length scale; 8. a pressure display gauge; 9. fixing a column; 10. a power line; 11. a power source.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1-7, a wallboard detection device for architectural decoration is provided, including device base 4, the upper end surface of device base 4 is provided with detects desktop 5, the middle part fixed mounting that detects desktop 5 has pressure sensor 3, the upper end surface that detects desktop 5 is provided with solid fixed plate edge mechanism 1, the rear end fixed surface of device base 4 is connected with constructional column 6, the front end fixed surface of device base 4 installs pressure display table 8, the one end fixed surface of constructional column 6 is connected with pressure measurement mechanism 2.
The structure of the fixed board edge mechanism 1 and the connection position relationship of the corresponding components are described, in this embodiment, the fixed board edge mechanism 1 includes a lifting fixed board 101, a sliding column 102, a latch opening 103, a sliding slot 104 and a fixed hole 105, the sliding column 102 is located at two ends of the lifting fixed board 101, the latch opening 103 is located at an outer surface of one side of the sliding column 102, the sliding slot 104 is located at an outer surface of a front end of the sliding column 102, the fixed hole 105 is located at an outer surface of one side of the lifting fixed board 101, and two ends of the lifting fixed board 101 are slidably connected with the outer surface of the sliding column 102 through the.
The number relationship of the components in the fixed plate edge mechanism 1 is described, in this embodiment, preferably, the number of the fixed plate edge mechanism 1 and the lifting fixed plate 101 is two, the number of the sliding columns 102 and the fixed holes 105 is four, the number of the sliding grooves 104 is eight, and the number of the latch openings 103 is twenty.
Describing the structure of the pressure measuring mechanism 2 and the connection position relationship of the corresponding components, in this embodiment, preferably, the pressure measuring mechanism 2 includes a frame 201, a rack bar 202, a pressing head 203, a transmission rod 204, a rotation rod 205 and a transmission gear 206, the rack bar 202 is located in the middle of the frame 201, the pressing head 203 is located on the outer surface of the lower end of the rack bar 202, the transmission gear 206 is located on the outer surface of one side of the rack bar 202, the transmission gear 206 is located on the outer surface of one end of the transmission rod 204, the rotation rod 205 is located at the other end of the transmission rod 204, one end of the rotation rod 205 penetrates through the middle of the transmission rod 204, the outer surface of the rotation rod 205 is movably connected with the middle of the transmission gear 206 through the transmission rod 204, the transmission gear 206 is meshed with the rack bar 202.
The connection relationship of the components in the device base 4 is described, in this embodiment, preferably, a power supply 11 is fixedly installed inside the device base 4, a power line 10 is arranged on one side outer surface of the device base 4, the power line 10 is electrically connected with the power supply 11, and the pressure sensor 3 and the pressure display meter 8 are both electrically connected with the power supply 11.
The position number relation of partial components is expressed, in the embodiment, preferably, the four-side outer surface of the device base 4 is provided with four groups of length graduated scales 7, the outer surface of the lower end of the device base 4 is fixedly connected with four groups of fixing columns 9, and the number of the fixing columns 9 is four groups.
The pressure sensor 3 and the pressure display meter 8 are formed by the components, so that the pressure sensor 3 and the pressure display meter 8 are convenient to be matched with the pressure measuring mechanism 2 to perform pressure testing on the wallboard.
Describing the connection relationship between the device base 4 and the pressure measuring mechanism 2, in the present embodiment, it is preferable that the rear outer surface of the device base 4 is fixedly connected to the rear outer surface of the pressure measuring mechanism 2 through the construction column 6.
The working principle and the using process of the invention are as follows: the invention is composed of a fixed plate edge mechanism 1, a pressure measuring mechanism 2, a pressure sensor 3, a device base 4, a detection table top 5, a constructional column 6, a length graduated scale 7, a pressure display meter 8, a fixed column 9, a power line 10 and a power supply 11, before use, the detection device is moved to a point to be detected, a plug is inserted into a socket through one end of the power supply line 10, the internal power supply 11 is electrified, the pressure display meter 8 and the pressure sensor 3 are connected with the power supply 11 to start working, during sampling inspection, a wall panel to be inspected passes through the lower part of a lifting fixed plate 101 and is placed on the detection table top 5, the lifting fixed plate 101 slides and presses down on a sliding column 102, after compaction, a metal bolt passes through a fixed hole 105 and penetrates into a bolt hole 103 to realize fixation, five groups of the bolt holes 103 are arranged according to the common plate thickness to adapt to the common plate thickness, the length and width of the wall panel can be measured through the length graduated scale 7 around, and measure its thickness through the corresponding short ruler, after fixing the wallboard through the fixed plate edge organization 1, drive the drive link 204 to rotate through the clockwise rotation rotary rod 205, and then drive the internal drive gear 206 to rotate, the drive gear 206 engages with rack bar 202 and connects, the drive gear 206 drives the external surface screw thread of rack bar 202 to rotate, and then realize the rack bar 202 moves downwards, its pressure head 203 pushes down and presses the wallboard, at this moment the lower pressure sensor 3 converts the change of strain on the mechanical component into the change of resistance through the resistance strain gauge inside and transmits to the signal processing unit, and then sends to the pressure signal switching mechanism in the pressure display meter 8, the pressure signal switching mechanism converts the resistance signal into the pressure value signal and then displays the pressure value on the digital display screen, until the wallboard is pressed to the limit and damaged, record the pressure value, and measure the compressive strength of the wallboard, the pressure measurement mechanism 2 that can reset can be realized to back anticlockwise rotation rotary rod 205, carries out next a set of wallboard and detects, and is easy and simple to handle, can improve the overall efficiency that the wallboard detected, and is comparatively practical.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a wallboard detection device for architectural decoration fitment, includes device base (4), its characterized in that: the device is characterized in that a detection desktop (5) is arranged on the outer surface of the upper end of a base (4), a pressure sensor (3) is fixedly arranged in the middle of the detection desktop (5), a fixing plate edge mechanism (1) is arranged on the outer surface of the upper end of the detection desktop (5), a constructional column (6) is fixedly connected to the outer surface of the rear end of the base (4), a pressure display meter (8) is fixedly mounted on the outer surface of the front end of the base (4), and a pressure measuring mechanism (2) is fixedly connected to the outer surface of one end of the constructional column (6).
2. The wallboard detecting device for building decoration according to claim 1, wherein: the fixed plate edge mechanism (1) comprises a lifting fixed plate (101), a sliding column (102), a bolt port (103), a sliding groove (104) and a fixed hole (105), wherein the sliding column (102) is located at two ends of the lifting fixed plate (101), the bolt port (103) is located on the outer surface of one side of the sliding column (102), the sliding groove (104) is located on the outer surface of the front end of the sliding column (102), the fixed hole (105) is located on the outer surface of one side of the lifting fixed plate (101), and two ends of the lifting fixed plate (101) are connected with the outer surface of the sliding column (102) in a sliding mode through the sliding groove (104).
3. The wallboard detecting device for building decoration according to claim 2, wherein: the number of the fixed plate edge mechanisms (1) and the number of the lifting fixed plates (101) are two, the number of the sliding columns (102) and the number of the fixed holes (105) are four, the number of the sliding grooves (104) is eight, and the number of the pin holes (103) is twenty.
4. The wallboard detecting device for building decoration according to claim 1, wherein: the pressure measuring mechanism (2) comprises a rack (201), a toothed bar (202), a pressure applying head (203), a transmission rod (204), a rotating rod (205) and a transmission gear (206), wherein the toothed bar (202) is positioned in the middle of the rack (201), the pressure applying head (203) is positioned on the outer surface of the lower end of the toothed bar (202), the transmission gear (206) is positioned on the outer surface of one side of the toothed bar (202), the transmission gear (206) is positioned on the outer surface of one end of the transmission rod (204), the rotating rod (205) is positioned at the other end of the transmission rod (204), one end of the rotating rod (205) penetrates through the middle of the transmission rod (204), the outer surface of the rotating rod (205) is movably connected with the middle of the transmission gear (206) through the transmission rod (204), the transmission gear (206) is meshed with the toothed bar (202), and the outer surface of the toothed bar (202) is, and the pressure measuring mechanism (2) is positioned right above the pressure sensor (3).
5. The wallboard detecting device for building decoration according to claim 1, wherein: the device is characterized in that a power supply (11) is fixedly mounted inside the device base (4), a power line (10) is arranged on the outer surface of one side of the device base (4), the power line (10) is electrically connected with the power supply (11), and the pressure sensor (3) and the pressure display meter (8) are electrically connected with the power supply (11).
6. The wallboard detecting device for building decoration according to claim 1, wherein: the device is characterized in that length graduated scales (7) are arranged on the outer surfaces of the periphery of the device base (4), the number of the length graduated scales (7) is four, fixing columns (9) are fixedly connected to the outer surface of the lower end of the device base (4), and the number of the fixing columns (9) is four.
7. The wallboard detecting device for building decoration according to claim 1, wherein: the pressure sensor (3) comprises a resistance strain gauge and a signal processing unit, the resistance strain gauge is electrically connected with the signal processing unit, the pressure sensor (3) is electrically connected with a pressure display meter (8) through the signal processing unit, and the pressure display meter (8) comprises a pressure signal conversion mechanism and a digital display screen.
8. The wallboard detecting device for building decoration according to claim 1, wherein: the outer surface of the rear end of the device base (4) is fixedly connected with the outer surface of the rear end of the pressure measuring mechanism (2) through a constructional column (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470383.4A CN111678406B (en) | 2020-05-28 | 2020-05-28 | Wallboard detection device is used to architectural decoration fitment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470383.4A CN111678406B (en) | 2020-05-28 | 2020-05-28 | Wallboard detection device is used to architectural decoration fitment |
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| Publication Number | Publication Date |
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| CN111678406A true CN111678406A (en) | 2020-09-18 |
| CN111678406B CN111678406B (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010470383.4A Active CN111678406B (en) | 2020-05-28 | 2020-05-28 | Wallboard detection device is used to architectural decoration fitment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199682A (en) * | 2022-01-24 | 2022-03-18 | 湖北理工学院 | Safety identification device for steel structure interlayer |
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2020
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| GB2498642A (en) * | 2012-01-04 | 2013-07-24 | Icubed Technologies Ltd | Sheet thickness measuring with variable pressure |
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| CN209927611U (en) * | 2019-04-11 | 2020-01-10 | 上海茨夫新型建筑材料有限公司 | Building material strength detection tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199682A (en) * | 2022-01-24 | 2022-03-18 | 湖北理工学院 | Safety identification device for steel structure interlayer |
| CN114199682B (en) * | 2022-01-24 | 2024-01-12 | 湖北理工学院 | Safety identification device for steel structure interlayer |
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| Publication number | Publication date |
|---|---|
| CN111678406B (en) | 2021-12-10 |
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