CN109297473B - Engineering survey pay-off - Google Patents
Engineering survey pay-off Download PDFInfo
- Publication number
- CN109297473B CN109297473B CN201811228659.7A CN201811228659A CN109297473B CN 109297473 B CN109297473 B CN 109297473B CN 201811228659 A CN201811228659 A CN 201811228659A CN 109297473 B CN109297473 B CN 109297473B
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- CN
- China
- Prior art keywords
- block
- rod
- groove
- moving
- containing box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 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
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
Abstract
The invention discloses an engineering measurement pay-off device which comprises a storage box, wherein a pull block is slidably mounted on the inner wall of the bottom side of the storage box, a pull rod is fixedly mounted on the top side of the pull block, a moving block is movably sleeved on the pull rod, a moving hole is formed in the top side of the moving block, the top end of the pull rod penetrates through the moving hole, a sliding block is slidably mounted on the inner wall of one side of the storage box, a moving rod is fixedly mounted on one side, close to the pull block, of the sliding block, and a moving hole is formed in one side, close to the sliding block, of the moving. When the laser transmitter is not needed to be used, the laser transmitter can be conveniently stored in the storage box, so that the laser transmitter can be effectively protected when not used, the damage caused by collision and the like during turnover or transportation is avoided, the service life of the laser transmitter is prolonged, the paying-off precision is ensured, meanwhile, the supporting plate is convenient to rotate, the laser transmitter is more convenient to turnover or transport, and the requirements of people are met.
Description
Technical Field
The invention relates to the technical field of engineering measurement, in particular to an engineering measurement pay-off device.
Background
The construction paying-off process is carried out by the prior inspection of the positioning and lofting of the construction engineering, so that the construction engineering is ensured to be safely and smoothly carried out according to the requirements of planning and approval, and simultaneously, the municipal facilities are perfected, the environmental quality is improved, and the damage to the benefits of adjacent property right main bodies is avoided. The publication number CN103528572B discloses a measuring pay-off device for engineering construction such as pipeline laying and civil engineering, which solves the defects of the existing measuring pay-off technology for the engineering construction such as pipeline laying and civil engineering that the error is increased along with the increase of pay-off distance, the labor intensity is large, the construction efficiency is low, the construction quality is affected, and the like, and comprises a bracket and a rotating shaft, wherein the rotating shaft is arranged on the bracket, a light-emitting device (namely a laser emitter) is arranged on the rotating shaft, and a driving mechanism connected with the rotating shaft is arranged on the rotating shaft; however, since the laser transmitter is a relatively precise instrument, the device cannot well protect the laser transmitter when not in use, and the laser transmitter is easily damaged due to collision and the like in the process of turnover or transportation, so that the paying-off precision is influenced; meanwhile, the supporting plate is not convenient to fold, so that the size of the supporting plate is large, inconvenience is brought to turnover and transportation, and an improved space exists.
Disclosure of Invention
In view of this, in order to solve the technical problems existing in the background art, the invention provides an engineering measurement pay-off device.
The engineering measurement pay-off device comprises a containing box, wherein a pull block is slidably mounted on the inner wall of the bottom side of the containing box, a pull rod is fixedly mounted on the top side of the pull block, a movable block is movably sleeved on the pull rod, a movable hole is formed in the top side of the movable block, the top end of the pull rod penetrates through the movable hole, a sliding block is slidably mounted on the inner wall of one side of the containing box, a movable rod is fixedly mounted on one side, close to the pull block, of the sliding block, a movable hole is formed in one side, close to the sliding block, of the movable block, one end of the movable rod penetrates through the movable hole, the side, close to the movable block, of the pull block and the sliding block are rotatably mounted with the same connecting rod, a rotating rod is rotatably mounted on one side of the connecting rod, a sleeving block is movably sleeved on the rotating rod, a sleeving hole is formed in one, one end of the installation rod extends to the outside of the installation groove and is fixedly installed on one side of the moving block, one side, far away from the sliding block, of the sleeve joint block is provided with a push rod rotatably installed on the top side of the rotating rod, the top end of the push rod is movably installed with a placing plate, the top side of the placing plate is rotatably installed with a laser emitter, a through hole is formed in the inner wall of one side of the containing box, a driving rod is movably installed in the through hole, two ends of the driving rod all extend to the outside of the through hole, one end of the driving rod extends to the inside of the containing box and is fixedly installed on one side of the pulling block, the other end of the driving rod is fixedly installed with a driving.
As the further improvement to the technical scheme, the supporting plates are rotatably installed on the two sides of the containing box through hinges, the top sides of the two supporting plates are fixedly provided with the fixing rods, and the top ends of the two fixing rods are fixedly provided with the conical blocks.
As the further improvement to above-mentioned technical scheme, the equal fixed mounting in bottom side of two backup pads has the locating piece, and two constant head tanks have been seted up to the bottom side of containing box, and two locating pieces respectively with two constant head tanks looks adaptations.
As a further improvement to the above technical scheme, the both sides of through-hole all are equipped with the draw-in groove of seting up in containing box one side, and the one end of an L type pole extends to in a draw-in groove, the one end of another corresponding L type pole and another corresponding draw-in groove looks adaptation, the top side of two L type poles all fixed mounting have the one end of spring, and the one end that two springs are close to each other is fixed mounting respectively on the both sides of driving the piece.
As a further improvement to the above technical scheme, the bottom side of the placing plate is provided with a sliding groove, a sliding block is arranged in the sliding groove in a sliding mode, and the top end of the push rod extends into the sliding groove and is rotatably arranged on the bottom side of the sliding block.
As a further improvement to the technical scheme, a pulling groove is formed in the inner wall of the bottom side of the containing box, the bottom side of the pulling block is slidably mounted in the pulling groove, a sliding groove is formed in the inner wall of one side of the containing box, and one side, far away from the moving rod, of the sliding block is slidably mounted in the sliding groove.
As a further improvement to the above technical solution, a rotating groove is annularly formed on an inner wall of the mounting groove, a rotating block is rotatably mounted in the rotating groove, and one side of the mounting rod, which is far away from the moving block, is fixedly mounted on one side of the rotating block, which is close to the moving block.
As a further improvement to the technical scheme, the rotating grooves are formed in one side, close to the rotating rod, of the connecting rod, and the same rotating shaft is installed in the two rotating grooves in a rotating mode.
As a further improvement to the technical scheme, a cover plate is fixedly installed on the top side of the laser emitter, and the bottom side of the cover plate is in contact with the top side of the containing box.
As a further improvement to the above technical scheme, a pushing groove is formed in the inner wall of one side, away from the sliding block, of the containing box, a pushing block is movably mounted in the pushing groove, and one side, away from the sliding block, of the placing plate extends into the pushing groove and is fixedly mounted on one side, close to the sliding block, of the pushing block.
According to the engineering measurement pay-off device, through the matched use of the storage box, the laser transmitter, the pulling block, the pull rod, the moving block, the moving hole, the sliding block, the moving rod, the moving hole, the connecting rod, the pulling groove, the sliding groove, the cover plate, the through hole, the driving rod, the driving block, the L-shaped rod, the clamping groove and the spring, when the engineering measurement pay-off device is needed to be used, one L-shaped rod is rotated, one end of the L-shaped rod is separated from one clamping groove, the driving block is pulled to move at the moment, the pulling block is moved to drive the sliding block to move through the connecting rod, and the sliding block is moved to drive the moving block to move through the; through the matching use of a containing box, a laser emitter, a rotating rod, a sleeving block, a sleeving hole, a mounting groove, a mounting rod, a rotating groove, a rotating block, a rotating groove, a rotating shaft, a pushing rod, a placing plate, a sliding groove, a sliding block, a pushing groove, a pushing block, a pulling groove, a sliding groove, a cover plate, a supporting plate, a fixing rod, a conical block, a positioning groove, a spring and a hinge, the moving block moves to drive the sleeving block to move, the sleeving block moves to drive the rotating rod to rotate, the rotating rod rotates to push the pushing rod to move, so that the pushing rod pushes the placing plate to move, the placing plate moves to drive the laser emitter to move out of the containing box, at the moment, one end of another L-shaped rod enters another clamping groove through the tensile force of the spring, the laser emitter can be fixed, then the two, the laser emitter model is LS521 II.
When the laser transmitter is not needed to be used, the laser transmitter can be conveniently stored in the storage box, so that the laser transmitter can be effectively protected when not used, the damage caused by collision and the like during turnover or transportation is avoided, the service life of the laser transmitter is prolonged, the paying-off precision is ensured, meanwhile, the supporting plate is convenient to rotate, the laser transmitter is more convenient to turnover or transport, and the requirements of people are met.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural view of portion A of FIG. 1;
FIG. 4 is a schematic structural diagram of portion B of FIG. 2;
fig. 5 is a schematic structural view of a portion C in fig. 2.
In the figure: the laser positioning device comprises a storage box 1, a laser emitter 2, a pulling block 3, a pulling rod 4, a moving block 5, a moving hole 6, a sliding block 7, a moving rod 8, a moving hole 9, a connecting rod 10, a rotating rod 11, a sleeving block 12, a sleeving hole 13, a mounting groove 14, a mounting rod 15, a rotating groove 16, a rotating block 17, a rotating groove 18, a rotating shaft 19, a pushing rod 20, a placing plate 21, a sliding groove 22, a sliding block 23, a pushing groove 24, a pushing block 25, a pulling groove 26, a sliding groove 27, a cover plate 28, a through hole 29, a driving rod 30, a driving block 31, a 32L-shaped rod, a clamping groove 33, a supporting plate 34, a fixing rod 35, a conical block 36, a positioning block 37, a positioning groove 38, a spring 39.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific examples.
As shown in fig. 1 to 5, the engineering surveying pay-off device of the embodiment includes a storage box 1, a pull block 3 is slidably mounted on an inner wall of a bottom side of the storage box 1, a pull rod 4 is fixedly mounted on a top side of the pull block 3, a movable block 5 is movably sleeved on the pull rod 4, a movable hole 6 is formed on a top side of the movable block 5, the top end of the pull rod 4 penetrates through the movable hole 6, a sliding block 7 is slidably mounted on an inner wall of one side of the storage box 1, a movable rod 8 is fixedly mounted on a side of the sliding block 7 close to the pull block 3, a movable hole 9 is formed on a side of the movable block 5 close to the sliding block 7, one end of the movable rod 8 penetrates through the movable hole 9, the same connecting rod 10 is rotatably mounted on a side of the pulling block 3 and the sliding block 7 close to each other, a rotating rod 11 is rotatably mounted on one side of the connecting rod 10, one end of dwang 11 runs through cup joint hole 13, one side that cup joint piece 12 is close to movable block 5 has seted up mounting groove 14, movable mounting has installation pole 15 in mounting groove 14, the one end of installation pole 15 extends to mounting groove 14 outer and fixed mounting is on one side of movable block 5, cup joint piece 12 one side of keeping away from gliding piece 7 is equipped with the catch bar 20 of rotating and installing on dwang 11 top side, the top movable mounting of catch bar 20 has places board 21, the top side of placing board 21 rotates and installs laser emitter 2, through-hole 29 has been seted up on one side inner wall of containing box 1, movable mounting has drive rod 30 in the through-hole 29, the both ends of drive rod 30 all extend outside through-hole 29, the one end of drive rod 30 extends to in the containing box 1 and fixed mounting is on one side of pulling piece 3, the other end fixed mounting of drive rod 30 has drive piece 31, the both sides of drive piece 31 are all rotated.
When the sliding block is required to be used, one L-shaped rod 32 is rotated to enable one end of the L-shaped rod to be separated from one clamping groove 33, the driving block 31 is pulled to enable the pulling block 3 to move, the pulling block 3 moves to drive the sliding block 7 to move through the connecting rod 10, the sliding block 7 moves to drive the moving block 5 to move through the moving rod 8, and the moving block 5 slides on the pull rod 4.
In this embodiment, the supporting plates 34 are rotatably installed on both sides of the storage box 1 through hinges 40, the fixing rods 35 are fixedly installed on the top sides of the two supporting plates 34, and the tapered blocks 36 are fixedly installed on the top ends of the two fixing rods 35. The tapered block 36 may be inserted into the ground to facilitate the securing of the receptacle.
In this embodiment, the bottom sides of the two supporting plates 34 are fixedly provided with the positioning blocks 37, the bottom side of the storage box 1 is provided with two positioning grooves 38, and the two positioning blocks 37 are respectively matched with the two positioning grooves 38. Positioning block 37 may snap into positioning slot 38 so that buttress plate 34 may be supported upright.
In this embodiment, the two sides of the through hole 29 are respectively provided with a slot 33 formed on one side of the storage box 1, one end of one L-shaped rod 32 extends into one slot 33, one end of the other corresponding L-shaped rod 32 is matched with the other corresponding slot 33, the top sides of the two L-shaped rods 32 are respectively and fixedly provided with one end of a spring 39, and the ends of the two springs 39 close to each other are respectively and fixedly arranged on the two sides of the driving block 31. The spring 39 provides a spring force that provides the L-shaped lever 32 with a positioning and return feature, facilitating operation and improving the stability of the driver block 31.
In this embodiment, the bottom side of the placing plate 21 is provided with a sliding chute 22, a sliding block 23 is slidably mounted in the sliding chute 22, and the top end of the pushing rod 20 extends into the sliding chute 22 and is rotatably mounted on the bottom side of the sliding block 23. With this structure, the smoothness of the sliding of the push rod 20 can be improved.
In this embodiment, the inner wall of the bottom side of the storage box 1 is provided with a pulling groove 26, the bottom side of the pulling block 3 is slidably mounted in the pulling groove 26, the inner wall of one side of the storage box 1 is provided with a sliding groove 27, and the side of the sliding block 7 away from the moving rod 8 is slidably mounted in the sliding groove 27.
In this embodiment, a rotating groove 16 is annularly formed on the inner wall of the mounting groove 14, a rotating block 17 is rotatably mounted in the rotating groove 16, and one side of the mounting rod 15, which is far away from the moving block 5, is fixedly mounted on one side of the rotating block 17, which is close to the moving block 5.
In this embodiment, the rotating groove 18 has all been seted up to one side that connecting rod 10 and dwang 11 are close to each other, and same pivot 19 is installed to two rotating groove 18 internal rotations, and laser emitter 2's top side fixed mounting has apron 28, and the bottom side of apron 28 contacts with the top side of containing box 1.
In this embodiment, the inner wall of one side of the storage box 1 far away from the sliding block 7 is provided with a pushing groove 24, the pushing groove 24 is internally and movably provided with a pushing block 25, and one side of the placing plate 21 far away from the sliding block 7 extends into the pushing groove 24 and is fixedly arranged on one side of the pushing block 25 close to the sliding block 7.
The engineering survey pay-off of this embodiment, the movable block 5 moves and drives the piece 12 that cup joints, cup joint piece 12 and move and drive dwang 11 and rotate, dwang 11 rotates and promotes catch bar 20 and moves, thereby make catch bar 20 promote and place board 21 and move, it drives laser emitter 2 and removes outside containing box 1 to place board 21, the tensile force that passes through spring 39 with the one end of another L type pole 32 this moment enters into another draw-in groove 33, can fix laser emitter 2, then rotate two backup pads 34, make locating piece 37 enter into constant head tank 38, thereby make two backup pads 34 can fix, can accomplish the operation, can accomodate laser emitter 2 in the containing box 1 conveniently with the same principle.
When the laser emitter fixing device needs to be used, one L-shaped rod 32 is rotated to enable one end of the L-shaped rod to be separated from one clamping groove 33, the driving block 31 is pulled to enable the pulling block 3 to move, the pulling block 3 moves to drive the sliding block 7 to move through the connecting rod 10, the sliding block 7 moves to drive the moving block 5 to move through the moving rod 8, the moving block 5 slides on the pull rod 4, the moving block 5 moves to drive the sleeving block 12 to move, the sleeving block 12 moves to drive the rotating rod 11 to rotate, the rotating rod 11 rotates to push the push rod 20 to move, the push rod 20 pushes the placing plate 21 to move, the placing plate 21 moves to drive the laser emitter 2 to move out of the containing box 1, one end of the other L-shaped rod 32 enters the other clamping groove 33 through the tensile force of the spring 39 at the moment, the laser emitter 2 can be fixed, then the two supporting plates 34 are rotated, thereby allowing the two support plates 34 to be fixed; in the same way, the two supporting plates 34 can be folded, so that the two supporting plates 34 and the containing box 1 can form a regular shape when being contained, the space occupied by the containing box 1 can be effectively reduced through the containing of the supporting plates 34, the laser emitter 2 can be conveniently contained in the containing box 1 in the same way, and the storage space occupied by the containing box 1 can be effectively reduced, the storage box is convenient to stack or carry during transportation or turnover.
Finally, the principle and embodiments of the present invention are explained by using specific examples, and the above descriptions of the examples are only used to help understand the core idea of the present invention, and the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified examples also fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides an engineering survey pay-off, includes containing box (1), its characterized in that: a pulling block (3) is slidably mounted on the inner wall of the bottom side of the containing box (1), a pull rod (4) is fixedly mounted on the top side of the pulling block (3), a moving block (5) is movably sleeved on the pull rod (4), a moving hole (6) is formed in the top side of the moving block (5), the top end of the pull rod (4) penetrates through the moving hole (6), a sliding block (7) is slidably mounted on the inner wall of one side of the containing box (1), a moving rod (8) is fixedly mounted on one side, close to the pulling block (3), of the sliding block (7), a moving hole (9) is formed in one side, close to the sliding block (7), of the moving block (5), a moving hole (9) is formed in one end of the moving rod (8), the same connecting rod (10) is rotatably mounted on one side, close to the pulling block (3) and the sliding block (7), a rotating rod (11) is rotatably mounted on one side of the connecting rod (10), and a, one side of the sleeving and connecting block (12) is provided with a sleeving and connecting hole (13), one end of the rotating rod (11) penetrates through the sleeving and connecting hole (13), one side of the sleeving and connecting block (12) close to the moving block (5) is provided with a mounting groove (14), a mounting rod (15) is movably mounted in the mounting groove (14), one end of the mounting rod (15) extends out of the mounting groove (14) and is fixedly mounted on one side of the moving block (5), one side of the sleeving and connecting block (12) far away from the sliding block (7) is provided with a push rod (20) rotatably mounted on the top side of the rotating rod (11), the top end of the push rod (20) is movably mounted with a placing plate (21), the top side of the placing plate (21) is rotatably mounted with a laser transmitter (2), a through hole (29) is formed in the inner wall of one side of the containing box (1), a driving rod (30) is movably mounted in, one end of the driving rod (30) extends into the containing box (1) and is fixedly installed on one side of the pulling block (3), the other end of the driving rod (30) is fixedly installed with a driving block (31), and two sides of the driving block (31) are respectively rotatably installed with an L-shaped rod (32).
2. The engineering survey pay-off of claim 1, wherein: supporting plates (34) are rotatably installed on two sides of the containing box (1) through hinges (40), fixing rods (35) are fixedly installed on the top sides of the two supporting plates (34), and conical blocks (36) are fixedly installed on the top ends of the two fixing rods (35).
3. The engineering survey pay-off of claim 2, wherein: the bottom sides of the two supporting plates (34) are fixedly provided with positioning blocks (37), the bottom side of the containing box (1) is provided with two positioning grooves (38), and the two positioning blocks (37) are respectively matched with the two positioning grooves (38).
4. The engineering survey pay-off of claim 3, wherein: the both sides of through-hole (29) all are equipped with draw-in groove (33) of seting up in containing box (1) one side, and the one end of an L type pole (32) extends to in one draw-in groove (33), the one end and another corresponding draw-in groove (33) looks adaptation of another L type pole (32) of corresponding, the top side of two L type poles (32) is the one end of fixed mounting spring (39), and the one end that two springs (39) are close to each other is fixed mounting respectively on the both sides of driving piece (31).
5. The engineering survey pay-off of claim 4, wherein: the bottom side of the placing plate (21) is provided with a sliding groove (22), a sliding block (23) is arranged in the sliding groove (22) in a sliding mode, and the top end of the push rod (20) extends into the sliding groove (22) and is rotatably arranged on the bottom side of the sliding block (23).
6. The engineering survey pay-off of claim 5, wherein: the inner wall of the bottom side of the containing box (1) is provided with a pulling groove (26), the bottom side of the pulling block (3) is slidably installed in the pulling groove (26), the inner wall of one side of the containing box (1) is provided with a sliding groove (27), and the side, away from the moving rod (8), of the sliding block (7) is slidably installed in the sliding groove (27).
7. The engineering survey pay-off of claim 6, wherein: the inner wall of the mounting groove (14) is annularly provided with a rotating groove (16), a rotating block (17) is rotatably mounted in the rotating groove (16), and one side, far away from the moving block (5), of the mounting rod (15) is fixedly mounted on one side, close to the moving block (5), of the rotating block (17).
8. The engineering survey pay-off of claim 7, wherein: the connecting rod (10) and the dwang (11) are close to each other and have all been seted up the turn trough (18), and same pivot (19) are installed to two turn trough (18) internal rotations.
9. The engineering survey pay-off of claim 8, wherein: the top side of the laser emitter (2) is fixedly provided with a cover plate (28), and the bottom side of the cover plate (28) is in contact with the top side of the containing box (1).
10. The engineering survey pay-off of claim 9, wherein: the storage box is characterized in that a pushing groove (24) is formed in the inner wall of one side, away from the sliding block (7), of the storage box (1), a pushing block (25) is movably mounted in the pushing groove (24), one side, away from the sliding block (7), of the placing plate (21) extends into the pushing groove (24) and is fixedly mounted on one side, close to the sliding block (7), of the pushing block (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811228659.7A CN109297473B (en) | 2018-10-22 | 2018-10-22 | Engineering survey pay-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811228659.7A CN109297473B (en) | 2018-10-22 | 2018-10-22 | Engineering survey pay-off |
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| Publication Number | Publication Date |
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| CN109297473A CN109297473A (en) | 2019-02-01 |
| CN109297473B true CN109297473B (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811228659.7A Expired - Fee Related CN109297473B (en) | 2018-10-22 | 2018-10-22 | Engineering survey pay-off |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110260847B (en) * | 2019-08-02 | 2023-11-24 | 安徽理工大学 | Laser level meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29716316U1 (en) * | 1997-09-11 | 1997-11-13 | Ullrich Stabila Messgeraete | Device for leveling and / or making markings on walls |
| EP1357353A2 (en) * | 2001-02-23 | 2003-10-29 | Black & Decker Inc. | Laser level |
| CN201340267Y (en) * | 2008-07-03 | 2009-11-04 | 万长铭 | Laser horizontal line snapping device |
| CN107421520A (en) * | 2017-09-28 | 2017-12-01 | 杭州睿兴栋宇建筑科技有限公司 | A kind of finishing actinobacillus device and method based on BIM technology |
| CN108195361A (en) * | 2018-01-29 | 2018-06-22 | 刘亚 | Multi-purpose measuring device, system and method |
| CN108279000A (en) * | 2018-04-03 | 2018-07-13 | 成都酷爱睿工业产品设计有限公司 | A kind of engineering survey actinobacillus device |
-
2018
- 2018-10-22 CN CN201811228659.7A patent/CN109297473B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29716316U1 (en) * | 1997-09-11 | 1997-11-13 | Ullrich Stabila Messgeraete | Device for leveling and / or making markings on walls |
| EP1357353A2 (en) * | 2001-02-23 | 2003-10-29 | Black & Decker Inc. | Laser level |
| CN201340267Y (en) * | 2008-07-03 | 2009-11-04 | 万长铭 | Laser horizontal line snapping device |
| CN107421520A (en) * | 2017-09-28 | 2017-12-01 | 杭州睿兴栋宇建筑科技有限公司 | A kind of finishing actinobacillus device and method based on BIM technology |
| CN108195361A (en) * | 2018-01-29 | 2018-06-22 | 刘亚 | Multi-purpose measuring device, system and method |
| CN108279000A (en) * | 2018-04-03 | 2018-07-13 | 成都酷爱睿工业产品设计有限公司 | A kind of engineering survey actinobacillus device |
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| CN109297473A (en) | 2019-02-01 |
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Granted publication date: 20200918 Termination date: 20211022 |