CN108775891B - Distance measuring instrument - Google Patents
Distance measuring instrument Download PDFInfo
- Publication number
- CN108775891B CN108775891B CN201811044705.8A CN201811044705A CN108775891B CN 108775891 B CN108775891 B CN 108775891B CN 201811044705 A CN201811044705 A CN 201811044705A CN 108775891 B CN108775891 B CN 108775891B
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- rod
- resistance
- supporting
- placing
- measuring
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- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013507 mapping Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a range finder, which is characterized in that a gear, a detection ring, an inner ring, an outer ring, a resistance belt, a plumb and a conductor are arranged, when a support rod rotates to drive the gear to rotate, the gear drives the inner ring to rotate through the detection ring, so that the relative position between the conductor at the lower end of the plumb and the resistance belt is changed, the resistance value between the resistance belt and the conductor measured by a resistance measuring instrument is changed, the rotation angle of the support rod is calculated, when a telescopic rod in the support rod stretches or shortens, the relative position between the inner rod and the outer rod is changed, the position of the measuring body on the resistance belt is changed, the resistance value between the resistance belt and the measuring body measured by the resistance measuring instrument is changed, the length of the support rod is calculated, the angle of a range finder body is adjusted, and automatic leveling is realized.
Description
Technical Field
The invention belongs to the technical field of civil engineering mapping, and particularly relates to a range finder.
Background
The distance meter is a common instrument in civil engineering mapping, when the distance meter is used, the flat distance and the inclined distance can be measured, when the flat distance is measured, the bracket of the distance meter is required to be roughly leveled, then the distance meter is finely leveled on the basis of rough leveling, the position of horizontal bubbles required to be observed in the leveling gradually adjusts the distance meter to be horizontal, and the calibration process is slower;
aiming at the problem, chinese patent CN207471063U discloses a support of a total station type electronic range finder. The bottom stabilizer blade adopts scalable tripod, and its characterized in that tripod top is fixed to be set up the cloud platform, the cloud platform includes base and backup pad, wherein: the center of the base is provided with a flange bearing, and the bottom edge of the flange bearing protrusion is fixedly connected with the support legs of the telescopic tripod; a supporting plate is arranged above the base, one side of the supporting plate is hinged with the base and provided with a pitching motor, and a gyroscope is arranged in the supporting plate; a screw rod lifter is also arranged in the base, and a push button type micro switch is arranged at the contact position of the bottom of the supporting plate and the screw rod; the pitching motor, the gyroscope, the screw rod lifter and the micro switch are simultaneously connected with a controller arranged in the base; the top of the supporting plate is provided with a connecting component for installing the total station type electronic range finder, so that the cradle head can be accurately and quickly leveled, and the total station type electronic range finder can be conveniently and quickly and stably developed;
however, the accuracy requirement of the electronic range finder support on the gyroscope is high, and the gyroscope which can reach the leveling requirement in actual use is often high in cost, so that the range finder with lower cost and easier popularization is needed.
Disclosure of Invention
According to the defects of the prior art, the technical problem to be solved by the invention is to provide a range finder for solving all or one of the technical problems, and the range finder has the effects of measuring the gradient of the bottom surface on which the range finder is placed and automatically leveling the range finder according to the gradient.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a distancer, includes distancer body and work support, and the distancer body is installed at work support top, the work support includes supporting mechanism, positioning mechanism, placing mechanism and slope measurement mechanism, and positioning mechanism connects at the supporting mechanism middle part, and placing mechanism installs in the supporting mechanism upper end, and slope measurement mechanism installs in placing mechanism upper end.
Preferably, the supporting mechanism comprises three supporting rods and a fixed seat, the three supporting rods are respectively connected to the bottom of the placing mechanism, the bottom of each supporting rod is provided with a movable shaft, each supporting rod is connected with the fixed seat through the movable shaft and forms a rotatable structure with the fixed seat, the outer ring of each movable shaft is fixedly connected with a gear rotating along with the movable shaft, the gears are in meshed connection with a detection ring, the detection rings are connected with inner rings through belts and form a transmission structure with the inner rings, the inner walls of the inner rings are provided with resistance belts, the resistance belts are arranged in a ring shape attached to the inner walls of the inner rings, the heads and the tails of the resistance belts are not closed, one ends of the resistance belts are electrically connected with a gradient measuring mechanism, the outer rings are arranged outside the inner walls of the inner rings, the tops of the inner walls of the outer rings are connected with hanging ropes, the bottoms of the hanging ropes are connected with plumbs, the bottoms of the plumbs are provided with conductors, and the conductors at the bottoms of the plumbs are contacted with the resistance belts on the inner walls of the inner rings, and the upper ends of the conductors are electrically connected with the gradient measuring mechanism;
the bracing piece middle part is equipped with the telescopic link, and the telescopic link includes interior pole and outer pole, interior pole and outer pole swing joint, constitutes telescopic structure, install the resistance strip on the outer wall of interior pole, the one end electric connection slope measuring mechanism of resistance strip, install on the inner wall of outer pole and measure the body, measure body and resistance strip contact, the upper end electric connection slope measuring mechanism of measuring the body.
Preferably, the slope measuring mechanism comprises a resistance measuring instrument, a controller, an adjusting button and a display screen, wherein the resistance measuring instrument, the controller, the adjusting button and the display screen are all arranged above the placing mechanism, the adjusting button, the display screen and the resistance measuring instrument are all electrically connected with the controller, and the resistance measuring instrument is electrically connected with the supporting mechanism.
Preferably, the placing mechanism comprises a placing table and a placing seat, the placing seat is arranged above the placing table, the placing table is connected with the placing seat through lifting rods, the lifting rods are four, and the lifting rods are electrically connected with the gradient measuring mechanism.
Preferably, the placing seat is further provided with a clamping mechanism, the clamping mechanism comprises a seat plate, a clamping nut and a clamping plate, the clamping nut is arranged in the seat plate, and the clamping plate is arranged at one end of the clamping nut.
Preferably, the clamping plate surface is covered with rubber.
Preferably, the positioning mechanism comprises a positioning rod and a positioning plate, the positioning rod is connected to the middle part of the supporting mechanism, the positioning plate is connected to the lower end of the positioning rod, and the positioning plate is perpendicular to the positioning rod.
Preferably, the positioning rod is provided in a telescopic structure.
The invention has the beneficial effects that:
1. according to the invention, the gear, the detection ring, the inner ring, the outer ring, the resistance belt, the plumb and the electric conductor are arranged, when the supporting rod rotates to drive the gear to rotate, the gear drives the inner ring to rotate through the detection ring, so that the relative position between the electric conductor at the lower end of the plumb and the resistance belt is changed, the resistance value between the resistance belt and the electric conductor measured by the resistance measuring instrument is changed, and the rotation angle of the supporting rod is calculated.
2. According to the invention, the inner rod, the outer rod, the measuring body and the resistor strip are arranged, when the telescopic rod in the supporting rod is lengthened or shortened, the relative position between the inner rod and the outer rod is changed, the position of the measuring body on the resistor strip is changed, and the resistance value between the resistor strip and the measuring body measured by the resistance measuring instrument is changed, so that the length of the supporting rod is calculated.
3. According to the invention, by arranging the resistance measuring instrument, the controller, the adjusting button and the display screen, the gradient of the ground on which the range finder is placed can be calculated according to the resistance between the resistance belt and the conductor and the resistance between the measuring body and the resistance belt, and the gradient is sent to the display screen for being observed by a user, and the adjusting button is used for switching the measuring inclined distance and the flat distance by the user, so that the total station range finder is more convenient to use.
Drawings
The contents expressed in the drawings of the present specification and the marks in the drawings are briefly described as follows:
fig. 1 is a schematic structural view of a specific embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic view showing the internal partial structure of the support bar according to the embodiment of the present invention.
Fig. 4 is a schematic side view of the inner and outer rings of an embodiment of the present invention.
Fig. 5 is a schematic view of the structure of the outer rod and the inner rod according to the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operating and using method, etc., will further explain the present invention in detail, so as to help those skilled in the art to more fully understand the present invention.
The utility model provides a range finder, includes range finder body 2 and work support 1, and range finder body 2 installs at work support 1 top, work support 1 includes supporting mechanism 11, positioning mechanism 13, places mechanism 14 and slope measurement mechanism, and positioning mechanism 13 connects at supporting mechanism 11 middle part, places mechanism 14 and installs in supporting mechanism 11 upper end, and slope measurement mechanism installs in placing mechanism 14 upper end.
Specifically, the supporting mechanism 11 includes a supporting rod 111 and a fixed seat 112, the supporting rod 111 is three, and is respectively connected to the bottom of the placing mechanism 14, the bottom of the supporting rod 111 is provided with a movable shaft 113, the supporting rod 111 is connected with the fixed seat 112 through the movable shaft 113, and forms a rotatable structure with the fixed seat 112, the outer ring of the movable shaft 113 is fixedly connected with a gear 114 rotating along with the movable shaft 113, the gear 114 is in meshed connection with a detection ring 115, the detection ring 115 is connected with an inner ring 117 through a belt 116 to form a transmission structure with the inner ring 117, a resistance belt is arranged on the inner wall of the inner ring 117, the resistance belt is in a ring shape attached to the inner wall of the inner ring 117, the head and the tail of the resistance belt are not closed, one end of the resistance belt is electrically connected with a gradient measuring mechanism, an outer ring 118 is arranged outside the inner ring 117, the top of the inner wall of the outer ring 118 is connected with a hanging rope, the bottom of the hanging rope is connected with a plumb 119, the bottom of the plumb 119 is provided with a conductor, and the conductor at the bottom of the plumb 119 is in contact with the resistance belt on the inner wall of the inner ring, and the upper end of the conductor is electrically connected with the gradient measuring mechanism;
the bracing piece 111 middle part is equipped with the telescopic link, and the telescopic link includes interior pole 121 and outer pole 122, interior pole 121 and outer pole 122 swing joint, constitutes telescopic structure, install the resistance strip on the outer wall of interior pole 121, the one end electric connection slope measuring mechanism of resistance strip, install on the inner wall of outer pole 122 and measure body 123, measure body 123 and resistance strip contact, the upper end electric connection slope measuring mechanism of measuring body 123.
Specifically, the slope measuring mechanism includes resistance measuring instrument, controller, adjustment button and display screen, and resistance measuring instrument, controller, adjustment button and display screen are all installed in placing mechanism 14 top, and adjustment button, display screen and resistance measuring instrument all with controller electric connection, resistance measuring instrument and supporting mechanism 11 electric connection.
Specifically, the placement mechanism 14 includes a placement table 141 and a placement seat 142, the placement seat 142 is installed above the placement table 141, the placement table 141 is connected with the placement seat 142 through lifting rods 143, the number of lifting rods 143 is four, and the lifting rods 143 are electrically connected with the gradient measuring mechanism.
Specifically, the placing seat 142 is further provided with a clamping mechanism, the clamping mechanism comprises a seat plate 144, a clamping nut 145 and a clamping plate 146, the clamping nut 145 is installed in the seat plate 144, and the clamping plate 146 is installed at one end of the clamping nut 145.
Specifically, the surface of the chucking plate 146 is covered with rubber.
Specifically, the positioning mechanism 13 includes a positioning rod 131 and a positioning plate 132, the positioning rod 131 is connected to the middle part of the supporting mechanism 11, the positioning plate 132 is connected to the lower end of the positioning rod 131, the positioning plate 132 is perpendicular to the positioning rod 131, and the positioning rod 131 is perpendicular to the placing table 141.
Specifically, the positioning rod 131 is provided in a telescopic structure.
When a user uses the total station range finder of the invention, firstly, the total station range finder is placed at the position of a ranging point, a positioning plate 132 at the bottom of a placing table 141 is tightly attached to the ground, a positioning rod 131 is vertical to the ground, after the range finder is positioned, the angle and the telescopic length of three support rods 111 of a working support 1 are required to be adjusted because the ground at the placed position is possibly positioned on an inclined plane, the total station range finder can be stably placed on the ground, after the total station range finder is placed, because the angle and the length of the support rods 111 are changed, a placing platform positioned at the top of the support rods 111 is not in a horizontal state under the influence of the gradient of the ground, and if the distance in the horizontal direction is required to be measured, the angle of the placing platform is required to be adjusted;
when the angle of the supporting rod 111 is rotated, a gear 114 mounted on the movable shaft 113 rotates along with the movable shaft 113, the gear 114 rotates to drive a detection ring 115 meshed with the gear 114 to rotate, the detection ring 115 rotates to drive an inner ring 117 to rotate through a belt 116, and after the inner ring 117 rotates, a sagging state is kept under the action of gravity due to a plumb 119, so that a contact point between a conductor at the bottom of the plumb 119 and a resistance belt is changed, a resistance value measured by a resistance measuring instrument is correspondingly changed and is transmitted to a controller, and the controller can calculate the rotation angle of the movable shaft 113 according to the resistance value;
when the length of the supporting rod 111 is adjusted, the telescopic rod in the supporting rod 111 is lengthened and shortened, namely the relative position of the outer rod 122 and the inner rod 121 in the telescopic rod is changed, the measuring body 123 on the outer rod 122 moves along the resistor strip on the outer wall of the inner rod 121, the resistance value measured by the resistance measuring instrument is correspondingly changed and is transmitted to the controller, and the controller can calculate the extension length of the telescopic rod according to the measured resistance value between the measuring body 123 and the resistor strip, so that the length of the supporting rod 111 is obtained;
the controller can calculate the angle of the placement surface formed by the three support rods 111 when the total station range finder is placed according to the respective angles and lengths of the three support rods 111, namely calculate the gradient of the ground, after calculating the gradient of the ground, the controller can send the gradient to a display screen for display, when the measured direction needs to be adjusted to be horizontal, the controller can control four lifting elongations or shortening connected above the placement table 141 according to the calculated gradient of the ground, and then adjust the placement seat 142 and the angle of the range finder body 2 connected on the placement seat 142, and the leveling of the placement seat 142 is not needed manually.
While the invention has been described above by way of example, it will be apparent that the invention is not limited to the above embodiments, but is intended to cover various insubstantial modifications of the method concepts and technical solutions of the invention, or applications of the inventive concepts and technical solutions without modifications, as are within the scope of the invention. The protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (5)
1. A range finder, characterized in that: the automatic distance measuring device comprises a distance measuring device body and a working support, wherein the distance measuring device body is arranged at the top of the working support, the working support comprises a supporting mechanism, a positioning mechanism, a placing mechanism and a gradient measuring mechanism, the positioning mechanism is connected to the middle of the supporting mechanism, the placing mechanism is arranged at the upper end of the supporting mechanism, and the gradient measuring mechanism is arranged at the upper end of the placing mechanism;
the supporting mechanism comprises supporting rods and a fixed seat, wherein the supporting rods are three and are respectively connected to the bottom of the placing mechanism, the bottom of each supporting rod is provided with a movable shaft, each supporting rod is connected with the fixed seat through the movable shaft and forms a rotatable structure with the fixed seat, the outer ring of each movable shaft is fixedly connected with a gear rotating along with the movable shaft, each gear is connected with a detection ring in meshed mode, each detection ring is connected with an inner ring through a belt and forms a transmission structure with the inner ring, the inner wall of each inner ring is provided with a resistance belt, each resistance belt is arranged in a ring shape attached to the inner wall of each inner ring, the heads and the tails of the resistance belts are not closed, one end of each resistance belt is electrically connected with a gradient measuring mechanism, the outer part of each inner ring is provided with an outer ring, the top of each outer ring is connected with a hanging rope, the bottom of each hanging rope is connected with a plumb, the bottom of each plumb is provided with a conductor, and the bottom of each plumb is in contact with the corresponding resistance belt on the inner wall of each inner ring, and the upper end of each conductor is electrically connected with the gradient measuring mechanism.
The middle part of the supporting rod is provided with a telescopic rod, the telescopic rod comprises an inner rod and an outer rod, the inner rod is movably connected with the outer rod to form a telescopic structure, a resistor strip is arranged on the outer wall of the inner rod, one end of the resistor strip is electrically connected with a gradient measuring mechanism, a measuring body is arranged on the inner wall of the outer rod, the measuring body is in contact with the resistor strip, the upper end of the measuring body is electrically connected with the gradient measuring mechanism, when the telescopic rod in the supporting rod is stretched or shortened, the relative position between the inner rod and the outer rod is changed, the position of the measuring body on the resistor strip is changed, and the resistance value between the resistor strip and the measuring body measured by the resistance measuring instrument is changed, so that the length of the supporting rod is calculated;
the slope measuring mechanism comprises a resistance measuring instrument, a controller, an adjusting button and a display screen, wherein the resistance measuring instrument, the controller, the adjusting button and the display screen are all arranged above the placing mechanism, the adjusting button, the display screen and the resistance measuring instrument are all electrically connected with the controller, the resistance measuring instrument is electrically connected with the supporting mechanism, the controller can calculate the angle of a placing surface formed by three supporting rods when the total station range finder is placed according to the respective angles and lengths of the three supporting rods, namely calculate the slope of the ground, and the controller can send the slope to the display screen for display after calculating the slope of the ground;
the placing mechanism comprises a placing table and a placing seat, the placing seat is arranged above the placing table, the placing table is connected with the placing seat through lifting rods, the lifting rods are four, and the lifting rods are electrically connected with the gradient measuring mechanism.
2. A rangefinder in accordance with claim 1 wherein: the clamping mechanism is further arranged on the placing seat and comprises a seat plate, a clamping nut and a clamping plate, the clamping nut is arranged in the seat plate, and the clamping plate is arranged at one end of the clamping nut.
3. A rangefinder in accordance with claim 2 wherein: the surface of the clamping plate is covered with rubber.
4. A rangefinder in accordance with claim 1 wherein: the positioning mechanism comprises a positioning rod and a positioning plate, the positioning rod is connected to the middle of the supporting mechanism, the positioning plate is connected to the lower end of the positioning rod, and the positioning plate is perpendicular to the positioning rod.
5. A rangefinder in accordance with claim 4 wherein: the positioning rod is arranged to be of a telescopic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044705.8A CN108775891B (en) | 2018-09-07 | 2018-09-07 | Distance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044705.8A CN108775891B (en) | 2018-09-07 | 2018-09-07 | Distance measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775891A CN108775891A (en) | 2018-11-09 |
| CN108775891B true CN108775891B (en) | 2024-02-13 |
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ID=64028943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044705.8A Active CN108775891B (en) | 2018-09-07 | 2018-09-07 | Distance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775891B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351476A (en) * | 2020-03-07 | 2020-06-30 | 智博兴(武汉)测绘有限公司 | Supporting and adjusting device for land survey |
| CN114136245A (en) * | 2021-11-30 | 2022-03-04 | 河海大学 | Road surface flatness detection device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691988A (en) * | 2009-10-12 | 2010-04-07 | 长沙理工大学 | Device for measuring elevation of bearing of turbo generator set |
| CN101846489A (en) * | 2009-03-23 | 2010-09-29 | Abb技术股份公司 | With device and the method for operating thereof of magnetoresistive transducer with the non-contact mode measuring position |
| CN107588759A (en) * | 2017-10-17 | 2018-01-16 | 安徽水利开发股份有限公司 | Smart electronicses gradiometer |
| CN107807350A (en) * | 2017-09-28 | 2018-03-16 | 公安部四川消防研究所 | A kind of Experimental Calibration system and its scaling method for being used to measure vertical Light deformation amount |
-
2018
- 2018-09-07 CN CN201811044705.8A patent/CN108775891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846489A (en) * | 2009-03-23 | 2010-09-29 | Abb技术股份公司 | With device and the method for operating thereof of magnetoresistive transducer with the non-contact mode measuring position |
| CN101691988A (en) * | 2009-10-12 | 2010-04-07 | 长沙理工大学 | Device for measuring elevation of bearing of turbo generator set |
| CN107807350A (en) * | 2017-09-28 | 2018-03-16 | 公安部四川消防研究所 | A kind of Experimental Calibration system and its scaling method for being used to measure vertical Light deformation amount |
| CN107588759A (en) * | 2017-10-17 | 2018-01-16 | 安徽水利开发股份有限公司 | Smart electronicses gradiometer |
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| Publication number | Publication date |
|---|---|
| CN108775891A (en) | 2018-11-09 |
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Address after: 241000 No. 2, Beijing Road, Wuhu, Anhui Applicant after: Wuhu Mingyuan Electric Power Engineering Consulting Design Co.,Ltd. Address before: 241000 No. 2, Beijing Road, Wuhu, Anhui Applicant before: WUHU ZHONGAN POWER DESIGN INST Co.,Ltd. |
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