CN111896936A - A measuring device for civil engineering - Google Patents
A measuring device for civil engineering Download PDFInfo
- Publication number
- CN111896936A CN111896936A CN202010782797.0A CN202010782797A CN111896936A CN 111896936 A CN111896936 A CN 111896936A CN 202010782797 A CN202010782797 A CN 202010782797A CN 111896936 A CN111896936 A CN 111896936A
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- threaded rod
- measuring device
- plate
- civil engineering
- rack
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a measuring device for civil construction, which belongs to the technical field of civil construction and comprises a containing box with an open top, wherein a lifting plate is arranged in the containing box in a sliding manner, the top of the lifting plate is rotatably provided with a turntable, the lifting plate is provided with a rotating mechanism for rotating the lifting plate, the top of the lifting plate is fixedly provided with two box bodies, a placing plate is arranged between the two box bodies, the placing plate is provided with a laser range finder, two sides of the placing plate are fixedly provided with horizontal transverse shafts, and the transverse shafts are rotatably connected with the box bodies; the laser range finder is convenient to use, can be stored, is convenient to carry and use, and plays a good role in protection.
Description
Technical Field
The invention belongs to the technical field of civil engineering construction, and particularly relates to a measuring device for civil engineering construction.
Background
A laser rangefinder is an instrument that uses a parameter of modulated laser light to achieve a distance measurement to a target. The measuring range of the laser range finder is 3.5-5000 meters. The distance measuring method is divided into a phase method distance measuring instrument and a pulse method distance measuring instrument, the pulse type laser distance measuring instrument emits a pulse laser beam or a sequence of short pulse laser beams to a target when in work, a photoelectric element receives the laser beam reflected by the target, a timer measures the time from the emitting to the receiving of the laser beam, and the distance from an observer to the target is calculated. The phase-method laser range finder detects a distance by detecting a phase difference occurring when emitted light and reflected light propagate in a space. The laser range finder has light weight, small volume, simple operation, high speed and accuracy.
The existing measuring device generally uses the laser range finder, but the laser range finder does not have any measure of accomodating, does not have safeguard measure to the laser range finder, and simultaneously when measuring, does not have fine supporting mechanism to support for through artifical handheld range finder when measuring, measure the unstability like this, cause the error easily, consequently, need a measuring device for civil engineering to solve above problem.
Disclosure of Invention
The present invention is directed to a measuring device for civil engineering work to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a measuring device for civil engineering construction comprises a containing box with an open top, wherein a lifting plate is arranged in the containing box in a sliding manner, a turntable is arranged on the top of the lifting plate in a rotating manner, a rotating mechanism for rotating the lifting plate is arranged on the lifting plate, two box bodies are fixedly arranged on the top of the lifting plate, a placing plate is arranged between the two box bodies, a laser range finder is arranged on the placing plate, horizontally arranged transverse shafts are fixedly arranged on two sides of the placing plate and are connected with the box bodies in a rotating manner, an adjusting mechanism for rotating the transverse shafts is arranged on the box bodies, a cover plate is hinged to the top of the containing box, driving grooves are formed in the inner walls of two sides of the containing box, a vertically arranged left threaded rod is rotatably arranged in the driving grooves, a lifting block is slidably arranged in the left threaded rod, the lifting block is fixedly connected with the lifting plate, two vertically arranged driving, the right threaded rod of installing vertical setting is rotated in the drive intracavity, and sliding mounting has the movable block in the drive intracavity, right threaded rod and movable block threaded connection, the supporting leg stake of vertical setting is installed to the bottom slidable mounting of containing box, and the bottom fixed mounting of supporting leg stake has the bottom plate, the top both sides of containing box are equipped with drive arrangement, and drive arrangement is connected with left threaded rod and right threaded rod transmission, and the screw thread opposite direction of left threaded rod and right threaded rod.
Further, drive arrangement includes box body, two-way gear motor, transmission shaft, two-way gear motor sets up in the box body, the transmission shaft rotate install in the drive groove with, between the drive chamber, two-way gear motor's output shaft is connected with the transmission shaft transmission, the transmission shaft is connected with left threaded rod and right threaded rod transmission respectively.
Furthermore, the fixed cover of transmission shaft is equipped with two drive bevel gear, and the fixed cover in top of left threaded rod and right threaded rod is equipped with driven bevel gear, drive bevel gear and driven bevel gear meshing.
Further, the rotating mechanism comprises a supporting column, a worm wheel, a worm and a speed reducing motor, the lifting plate is of a cavity structure, the supporting column is rotatably installed on the inner wall of the bottom of the lifting plate, the top of the supporting column is fixedly connected with the turntable, the worm wheel is fixedly sleeved on the supporting column, the worm is rotatably installed in the lifting plate, the worm is horizontally arranged, the worm is meshed with the worm wheel, and an output shaft of the speed reducing motor is in transmission connection with the worm.
Furthermore, a circular through hole is formed in the top of the lifting plate, a plurality of steel balls which are uniformly distributed in an annular shape are installed on the side wall of the rotary plate in a rolling mode, an annular groove is formed in the cylindrical through hole, and the steel balls are connected with the inner wall of the annular groove in a rolling mode.
Furthermore, adjustment mechanism is including fixed gear and the rack of slidable mounting on the cross axle in the box body and be used for the push rod motor that the rack removed of fixed cover, and the push rod and the rack transmission of push rod motor are connected, and rack and gear engagement, gear, rack and push rod motor all set up in the box body.
Further, fixed mounting has the locating piece in the box body, sets up the cylinder hole of vertical setting on the locating piece, and slidable mounting has the cylinder pole of vertical setting in the cylinder hole, the bottom of cylinder pole run through the cylinder hole and with the top fixed connection of rack, the vertical setting of rack.
Further, fixed mounting has the handle on the apron, the bolt is installed to the one end screw thread of apron, the thread groove of vertical setting is seted up to the top one end of containing box, bolt and thread groove adaptation.
Compared with the prior art, the invention has the beneficial effects that:
measuring distance through laser range finder, when using, drive rack lifting movement through the push rod motor and make gear revolve, drive the cross axle and rotate and make and place the board and rotate, make laser range finder's angle adjust, realize the measurement demand of different angles, drive the worm through gear motor and rotate and make the worm wheel rotate, make the support column rotate and make the carousel rotate, adjust measured direction, electrodynamic adjustment measuring direction and angle satisfy measuring demand.
Drive the transmission shaft through two-way gear motor and rotate and make the drive bevel gear rotate, it makes left threaded rod and right threaded rod rotate to drive driven bevel gear to rotate, left threaded rod and right threaded rod screw thread opposite direction, make elevator and movable block move in vertical direction, make elevator and movable block keep away from each other or be close to each other in vertical direction, make elevator and supporting leg stake keep away from each other or be close to each other in vertical direction, it uses to drive laser range finder to rise when the elevator rises and make laser range finder be located the outside of containing box, support whole device at the descending of supporting leg stake simultaneously, realize measuring device's independent support, need not artifical handheld when measuring, and can carry out measuring height position control according to the demand, high durability and convenient use.
Through when the lifter plate descends for the supporting leg stake rises and enters into the drive intracavity, accomodates laser range finder and supporting leg stake simultaneously, then covers the apron, in the screw thread groove is screwed into to the bolt, and artifical handle is carried, accomodates laser range finder, conveniently carries the use, plays fine guard action simultaneously.
The laser range finder is convenient to use, can be stored, is convenient to carry and use, and plays a good role in protection.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is a schematic cross-sectional view of the cartridge body of the present invention;
fig. 5 is a schematic cross-sectional structure view of the lifter plate of the present invention.
In the figure: 1. a storage box; 2. a lifting plate; 3. a turntable; 4. a box body; 5. a horizontal axis; 6. placing the plate; 7. a laser range finder; 8. a cover plate; 9. a handle; 10. a bolt; 11. a thread groove; 12. a drive slot; 13. a left threaded rod; 14. a lifting block; 15. a drive chamber; 16. a right threaded rod; 17. a movable block; 18. supporting leg piles; 19. a base plate; 20. a drive shaft; 21. a gear; 22. a rack; 23. a push rod motor; 24. a support pillar; 25. a worm gear; 26. a worm; 27. a reduction motor; 28. a bidirectional speed reducing motor.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1-5, the invention provides a measuring device for civil engineering construction, comprising a containing box 1 with an open top, a lifting plate 2 is slidably mounted in the containing box 1, a rotary table 3 is rotatably mounted on the top of the lifting plate 2, a rotating mechanism for rotating the lifting plate 2 is arranged on the lifting plate 2, two box bodies 4 are fixedly mounted on the top of the lifting plate 2, a placing plate 6 is arranged between the two box bodies 4, a laser range finder 7 is mounted on the placing plate 6, horizontal shafts 5 are fixedly mounted on two sides of the placing plate 6, the horizontal shafts 5 are rotatably connected with the box bodies 4, an adjusting mechanism for rotating the horizontal shafts 5 is arranged on the box bodies 4, a cover plate 8 is hinged on the top of the containing box 1, driving grooves 12 are formed in the inner walls of two sides of the containing box 1, a vertically arranged left threaded rod 13 is rotatably mounted in the driving grooves 12, a lifting block 14 is slidably mounted in, lifting block 14 and lifter plate 2 fixed connection, be equipped with the drive chamber 15 of two vertical settings on containing box 1, the right threaded rod 16 of vertical setting is installed to the 15 internal rotations in drive chamber, slidable mounting has movable block 17 in drive chamber 15, right threaded rod 16 and 17 threaded connection of movable block, the bottom slidable mounting of containing box 1 has the supporting leg stake 18 of vertical setting, the bottom fixed mounting of supporting leg stake 18 has bottom plate 19, the top both sides of containing box 1 are equipped with drive arrangement, drive arrangement is connected with left-hand thread pole 13 and the 16 transmission of right threaded rod, the screw thread opposite direction of left-hand thread pole 13 and right threaded rod 16.
In this embodiment, the driving device includes a box body, a bidirectional speed reducing motor 28, and a transmission shaft 20, the bidirectional speed reducing motor 28 is disposed in the box body, the transmission shaft 20 is rotatably mounted between the driving groove 12 and the driving cavity 15, an output shaft of the bidirectional speed reducing motor 28 is in transmission connection with the transmission shaft 20, and the transmission shaft 20 is in transmission connection with the left threaded rod 13 and the right threaded rod 16, respectively.
In this embodiment, two driving bevel gears are fixedly sleeved on the transmission shaft 20, and driven bevel gears are fixedly sleeved on the tops of the left threaded rod 13 and the right threaded rod 16, and the driving bevel gears are meshed with the driven bevel gears.
In the embodiment, the rotating mechanism comprises a supporting column 24, a worm wheel 25, a worm 26 and a speed reducing motor 27, the lifting plate 2 is of a cavity structure, the supporting column 24 is rotatably installed on the inner wall of the bottom of the lifting plate 2, the top of the supporting column 24 is fixedly connected with the turntable 3, the worm wheel 25 is fixedly sleeved on the supporting column 24, the worm 26 is rotatably installed in the lifting plate 2, the worm 26 is horizontally arranged, the worm 26 is meshed with the worm wheel 25, and an output shaft of the speed reducing motor 27 is in transmission connection with the worm 26.
In this embodiment, circular through-hole has been seted up at the top of lifter plate 2, and the lateral wall roll mounting of carousel 3 has a plurality of steel balls that are annular evenly distributed, is equipped with the annular groove in the cylinder through-hole, steel ball and annular groove's inner wall roll connection.
In this embodiment, the adjusting mechanism includes a gear 21 fixedly sleeved on the horizontal shaft 5, a rack 22 slidably mounted in the box body 4, and a push rod motor 23 for moving the rack 22, a push rod of the push rod motor 23 is in transmission connection with the rack 22, the rack 22 is engaged with the gear 21, and the gear 21, the rack 22, and the push rod motor 23 are all disposed in the box body 4.
In this embodiment, a positioning block is fixedly installed in the box body 4, a vertically arranged cylindrical hole is formed in the positioning block, a vertically arranged cylindrical rod is slidably installed in the cylindrical hole, the bottom of the cylindrical rod penetrates through the cylindrical hole and is fixedly connected with the top of the rack 22, and the rack 22 is vertically arranged.
In this embodiment, a handle 9 is fixedly mounted on the cover plate 8, a bolt 10 is mounted at one end of the cover plate 8 through threads, a vertically arranged thread groove 11 is formed at one end of the top of the storage box 1, and the bolt 10 is matched with the thread groove 11.
When using, measure the distance through laser range finder 7, when using, it makes gear 21 rotate to drive rack 22 elevating movement through push rod motor 23, it makes place board 6 and rotate to drive cross axle 5 and rotate, make laser range finder 7's angle adjust, realize the measurement demand of different angles, it makes worm wheel 25 rotate to drive worm 26 through gear motor 27 and rotate, make support column 24 rotate and make carousel 3 rotate, adjust measuring direction, electronization adjusts measuring direction and angle, satisfy measuring demand. Drive transmission shaft 20 through two-way gear motor 28 and rotate and make the drive bevel gear rotate, it makes left threaded rod 13 and right threaded rod 16 rotate to drive driven bevel gear to rotate, left threaded rod 13 and right threaded rod 16 screw thread opposite direction, make elevator 14 and movable block 17 move in vertical direction, make elevator 14 and movable block 17 keep away from each other or be close to each other in vertical direction, make elevator 2 and supporting leg stake 18 keep away from each other or be close to each other in vertical direction, it makes laser range finder 7 be located the outside of containing box 1 and use to drive laser range finder 7 to rise when elevator 2 rises, support whole device at supporting leg stake 18 decline simultaneously, realize measuring device's independent support, need not artifical handheld when measuring, and can carry out measuring height position according to the demand and adjust, high durability and convenient use. Through when lifter plate 2 descends for in 18 rises of supporting leg stake enter into drive chamber 15, accomodate laser range finder 7 and supporting leg stake 18 simultaneously, then cover apron 8, screw bolt 10 in the thread groove 11, handle 9 is carried to artifical hand, accomodates laser range finder 7, conveniently carries the use, plays fine guard action simultaneously. The laser range finder 7 is convenient to use, can be used for accommodating the laser range finder 7, is convenient to carry and use, and plays a good protection role at the same time.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a measuring device for civil engineering, includes that the top is open containing box (1) that sets up, its characterized in that: the lifting plate (2) is arranged in the containing box (1) in a sliding mode, the rotary table (3) is arranged at the top of the lifting plate (2) in a rotating mode, a rotating mechanism used for rotating the lifting plate (2) is arranged on the lifting plate (2), two box bodies (4) are fixedly arranged at the top of the lifting plate (2), a placing plate (6) is arranged between the two box bodies (4), a laser range finder (7) is arranged on the placing plate (6), horizontal shafts (5) are fixedly arranged on two sides of the placing plate (6), the horizontal shafts (5) are rotatably connected with the box bodies (4), an adjusting mechanism used for rotating the horizontal shafts (5) is arranged on the box bodies (4), a cover plate (8) is hinged to the top of the containing box (1), driving grooves (12) are formed in the inner walls of the two sides of the containing box (1), and a vertically-arranged left threaded rod (13) is rotatably arranged in, sliding installs lifter block (14) in left threaded rod (13), lifter block (14) and lifter plate (2) fixed connection, be equipped with drive chamber (15) of two vertical settings on containing box (1), right threaded rod (16) of vertical setting are installed to drive chamber (15) internal rotation, and sliding installation has movable block (17) in drive chamber (15), right threaded rod (16) and movable block (17) threaded connection, the bottom slidable mounting of containing box (1) has supporting leg stake (18) of vertical setting, and the bottom fixed mounting of supporting leg stake (18) has bottom plate (19), the top both sides of containing box (1) are equipped with drive arrangement, and drive arrangement is connected with left threaded rod (13) and right threaded rod (16) transmission, and the screw direction of left threaded rod (13) and right threaded rod (16) is opposite.
2. A measuring device for civil engineering works according to claim 1, characterized in that: drive arrangement includes box body, two-way gear motor (28), transmission shaft (20), two-way gear motor (28) set up in the box body, transmission shaft (20) rotate install in drive groove (12) and, between drive chamber (15), the output shaft and transmission shaft (20) transmission of two-way gear motor (28) are connected, and transmission shaft (20) are connected with left threaded rod (13) and right threaded rod (16) transmission respectively.
3. A measuring device for civil engineering works according to claim 2, characterized in that: the fixed cover of fixed cover is equipped with two drive bevel gears on transmission shaft (20), and the fixed cover in top of left threaded rod (13) and right threaded rod (16) is equipped with driven bevel gear, drive bevel gear and driven bevel gear meshing.
4. A measuring device for civil engineering works according to claim 1, characterized in that: slewing mechanism includes support column (24), worm wheel (25), worm (26) and gear motor (27), lifter plate (2) are the cavity structure, support column (24) rotate and install in the bottom inner wall of lifter plate (2), and the top and carousel (3) of support column (24) are fixed to be connect, the top and carousel (3) fixed connection of support column (24), on support column (24) were located to worm wheel (25) fixed cover, worm (26) rotate the installation and in lifter plate (2), and worm (26) level sets up, and worm (26) and worm wheel (25) mesh, and the output shaft and worm (26) transmission of gear motor (27) are connected.
5. A measuring device for civil engineering works according to claim 4, characterized in that: circular through-holes are formed in the tops of the lifting plates (2), a plurality of steel balls which are uniformly distributed in an annular shape are installed on the side wall of the rotary table (3) in a rolling mode, an annular groove is formed in the cylindrical through-hole, and the steel balls are connected with the inner wall of the annular groove in a rolling mode.
6. A measuring device for civil engineering works according to claim 1, characterized in that: the adjusting mechanism comprises a gear (21) fixedly sleeved on the transverse shaft (5), a rack (22) slidably mounted in the box body (4) and a push rod motor (23) used for moving the rack (22), a push rod of the push rod motor (23) is in transmission connection with the rack (22), the rack (22) is meshed with the gear (21), and the gear (21), the rack (22) and the push rod motor (23) are all arranged in the box body (4).
7. A measuring device for civil engineering works according to claim 6, characterized in that: the positioning block is fixedly mounted in the box body (4), a vertically-arranged cylindrical hole is formed in the positioning block, a vertically-arranged cylindrical rod is slidably mounted in the cylindrical hole, the bottom of the cylindrical rod penetrates through the cylindrical hole and is fixedly connected with the top of the rack (22), and the rack (22) is vertically arranged.
8. A measuring device for civil engineering works according to claim 1, characterized in that: fixed mounting has handle (9) on apron (8), bolt (10) are installed to the one end screw thread of apron (8), thread groove (11) of vertical setting are seted up to the top one end of containing box (1), bolt (10) and thread groove (11) adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010782797.0A CN111896936A (en) | 2020-08-06 | 2020-08-06 | A measuring device for civil engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010782797.0A CN111896936A (en) | 2020-08-06 | 2020-08-06 | A measuring device for civil engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111896936A true CN111896936A (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010782797.0A Pending CN111896936A (en) | 2020-08-06 | 2020-08-06 | A measuring device for civil engineering |
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| Country | Link |
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| CN (1) | CN111896936A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857523A (en) * | 2021-01-16 | 2021-05-28 | 唐山市柳林自动化设备有限公司 | Control method for improving radar water level measurement precision |
| CN113048376A (en) * | 2021-03-18 | 2021-06-29 | 叶远庚 | Instrument bearing structure for building construction drainage noise measurement |
| CN115079137A (en) * | 2022-08-23 | 2022-09-20 | 山东海鲲数控设备有限公司 | A accomodate and protective structure for laser range finder |
| CN116719012A (en) * | 2023-06-09 | 2023-09-08 | 广东凯源电力勘测设计有限公司 | Intelligent range finder |
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| US20160320169A1 (en) * | 2015-04-28 | 2016-11-03 | Eric S. Becker | Smart Metrology Stand |
| CN207440286U (en) * | 2017-11-29 | 2018-06-01 | 钟庆利 | Civil engineering laser range finder |
| CN209749436U (en) * | 2019-03-12 | 2019-12-10 | 曹东春 | Liftable livestock-raising uses feeding groove |
| CN210667543U (en) * | 2019-09-28 | 2020-06-02 | 深圳市乐视播科技有限公司 | A advertisement machine for market |
| US20200209394A1 (en) * | 2016-11-10 | 2020-07-02 | Leica Geosystems Ag | Laser scanner |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160320169A1 (en) * | 2015-04-28 | 2016-11-03 | Eric S. Becker | Smart Metrology Stand |
| US20200209394A1 (en) * | 2016-11-10 | 2020-07-02 | Leica Geosystems Ag | Laser scanner |
| CN207440286U (en) * | 2017-11-29 | 2018-06-01 | 钟庆利 | Civil engineering laser range finder |
| CN209749436U (en) * | 2019-03-12 | 2019-12-10 | 曹东春 | Liftable livestock-raising uses feeding groove |
| CN210667543U (en) * | 2019-09-28 | 2020-06-02 | 深圳市乐视播科技有限公司 | A advertisement machine for market |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857523A (en) * | 2021-01-16 | 2021-05-28 | 唐山市柳林自动化设备有限公司 | Control method for improving radar water level measurement precision |
| CN113048376A (en) * | 2021-03-18 | 2021-06-29 | 叶远庚 | Instrument bearing structure for building construction drainage noise measurement |
| CN113048376B (en) * | 2021-03-18 | 2024-01-05 | 叶远庚 | Instrument supporting structure for measuring drainage noise of building construction |
| CN115079137A (en) * | 2022-08-23 | 2022-09-20 | 山东海鲲数控设备有限公司 | A accomodate and protective structure for laser range finder |
| CN115079137B (en) * | 2022-08-23 | 2022-12-09 | 山东海鲲数控设备有限公司 | A accomodate and protective structure for laser range finder |
| CN116719012A (en) * | 2023-06-09 | 2023-09-08 | 广东凯源电力勘测设计有限公司 | Intelligent range finder |
| CN116719012B (en) * | 2023-06-09 | 2024-01-23 | 广东凯源电力勘测设计有限公司 | Intelligent range finder |
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