CN113155108A - Laser demarcation device of quick counter weight - Google Patents
Laser demarcation device of quick counter weight Download PDFInfo
- Publication number
- CN113155108A CN113155108A CN202110281214.0A CN202110281214A CN113155108A CN 113155108 A CN113155108 A CN 113155108A CN 202110281214 A CN202110281214 A CN 202110281214A CN 113155108 A CN113155108 A CN 113155108A
- Authority
- CN
- China
- Prior art keywords
- movement
- center
- pendulum body
- pendulum
- counterweight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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 relates to a laser demarcation device for rapid counterweight, which comprises a machine core bracket (1), a machine core pendulum body (2) and a counterweight pendulum body (3); the movement swinging body can be freely swung and arranged in the movement bracket; at least one group of laser line modules (21) are arranged on the movement swinging body and used for emitting laser lines; the movement pendulum body comprises an X shaft, a Y shaft, a bearing bracket (23) and a bearing supporting shaft (12); the bearing support is used for mounting a first X-axis bearing (9), a second X-axis bearing (11), a first Y-axis bearing (8) and a second Y-axis bearing (10); the bearing support shaft is used for connecting the 4 bearings and the movement swinging body, so that the whole movement swinging body can swing freely to reduce resistance; the balance weight pendulum body can be freely suspended at the center of the bottom of the movement pendulum body in a swinging mode and is used for compensating the weight unbalance of the movement pendulum body.
Description
Technical Field
The invention relates to an optical measurement technology, in particular to a laser demarcation device for quickly balancing weights.
Background
The existing self-perpendicularity line throwing instrument uses a gravity method to level a laser line module to achieve automatic horizontal line throwing, but the self-perpendicularity line throwing needs X, Y to achieve the purpose of balancing by taking the four sides of an axis as the center and needing the same weight, and the existing common method is to respectively arrange counterweight screws on X and Y axes.
In order to overcome the above problems, the patent application No. 201910182955 discloses a portable pendulum type automatic leveling laser plumbing instrument, which comprises a housing; an outer ring is arranged in the shell, an inner ring which can swing left and right and is provided with a light through hole is rotatably arranged in the middle of the outer ring, a pendulum body is arranged below the inner ring, a copper block is arranged at the bottom of the pendulum body, two sides of the top of the pendulum body are respectively provided with an integrated mounting seat, and the mounting seats are respectively rotatably arranged on the left side and the right side of the inner ring so that the pendulum body can swing back and forth relative to the inner ring; the pendulum is internally provided with a laser module mounting hole, a laser module is mounted in the laser module mounting hole, and laser emitted by the laser module upwards passes through the light through hole of the inner ring. The inner ring and the mounting seat are respectively rotatably mounted on the outer ring and the inner ring through bearing sets, each bearing set comprises a bearing mounted in a mounting hole of the outer ring or a mounting hole of the mounting seat, a support shaft is sleeved in each bearing, and the inner end of each support shaft extends out of each bearing and is inserted into a corresponding mounting hole in the inner ring; the top surface of the inner ring is provided with fastening holes which penetrate through the mounting holes and are in one-to-one correspondence, fastening screws are screwed in the fastening holes, and the inner ends of the fastening screws are tightly pressed on the corresponding supporting shafts. And clearance adjusting nuts are screwed on the outer sides of the bearing groups on the outer ring mounting hole and the mounting seat mounting hole. The front side face, the rear side face, the left side face and the right side face of the pendulum body are respectively provided with a calibration hole, the positions of the calibration holes correspond to each other and are communicated with the laser module mounting hole, calibration screws are arranged in the calibration holes in a rotating mode, and the inner ends of the calibration screws are respectively abutted to the front side face, the rear side face, the left side face and the right side face of the laser module. And a horizontally through wire hole is formed in the middle of the pendulum body, the wire hole is communicated with the center of the bottom of the laser module mounting hole, and a wire of the laser module penetrates out of the wire hole. And the bottom of the shell is provided with a clamping device capable of clamping the pendulum body. And a magnet is arranged at the bottom of the inner side of the shell. And a touch limiting device is arranged in the shell.
The laser emitted by the laser module is point laser. The bearing group consists of a bearing and a supporting shaft, and the supporting shaft is arranged at one end of the inner ring and is pressed and fixed by a fastening screw. And the clearance adjusting nuts fix all the bearing groups on the outer ring and the pendulum body to prevent the bearing groups from loosening. The center of pendulum body upper end is equipped with vertical laser module installation hole site, laser module is installed to laser module installation hole site, the total 8 calibration screws of pendulum body side facade for the calibration is tight solid laser module. The center of the inner ring is provided with an oval vertical through light through hole for laser to pass through, and the long axis of the light through hole is consistent with the long edge direction of the inner ring. And a horizontal through wire hole is formed in the middle of the pendulum body, the wire hole is communicated with the center of the bottom of the laser module mounting hole, and when the laser module is mounted, a wire of the laser module penetrates out of the wire hole so as to be connected with a circuit board. Above-mentioned technical scheme is simple for current laser demarcation device core structure, and for the automatic laser plummet of peaceful laser of liquid small, the price is cheaper, small convenient to carry, and fungible line weight when carrying out straightness inspection and control to projects such as template weighs down and uses, and does not receive the wind influence, and the pendulum speed is fast, practices thrift the time of straightness's of hanging down inspection and control.
However, the inventor finds that the technical scheme can only accurately measure the distance in a vertical and horizontal manner, the distance measurement cannot be performed horizontally, the function is single, the distance measurement is not accurate enough, the processing and debugging are more complex, the production cost is high, the efficiency is low, the installation and the maintenance are inconvenient, and the requirements of consumers cannot be met.
Disclosure of Invention
The invention aims to provide a laser demarcation device capable of quickly finishing a counterweight step.
The technical scheme adopted by the invention is as follows: a laser demarcation device for rapid counterweight is characterized by comprising a machine core bracket (1), a machine core pendulum body (2) and a counterweight pendulum body (3); the movement swinging body can be freely swung and arranged in the movement bracket; at least one group of laser line modules (21) are arranged on the movement swinging body and used for emitting laser lines; the movement pendulum body comprises an X shaft, a Y shaft, a bearing bracket (23) and a bearing supporting shaft (12); the bearing support is used for mounting a first X-axis bearing (9), a second X-axis bearing (11), a first Y-axis bearing (8) and a second Y-axis bearing (10); the bearing support shaft is used for connecting the 4 bearings and the movement swinging body, so that the whole movement swinging body can swing freely to reduce resistance; the balance weight pendulum body can be freely suspended at the center of the bottom of the movement pendulum body in a swinging mode and is used for compensating the weight unbalance of the movement pendulum body.
Preferably, the assembly relationship between the counterweight pendulum body and the movement pendulum body is as follows: the center of the bottom of the machine core swinging body is provided with a sunken part, the center of the head of the balance weight swinging body is provided with a convex part, so that the convex part of the balance weight swinging body can be embedded into the sunken part of the machine core swinging body, and the convex part of the balance weight swinging body can perform universal motion in the sunken part of the machine core swinging body; the center of the bottom of the movement pendulum body, the center of the head of the balance weight pendulum body, the center of the first X-axis bearing, the center of the second X-axis bearing, the center of the first Y-axis bearing and the center of the second Y-axis bearing are positioned on the same straight line.
Preferably, the assembly relationship between the counterweight pendulum body and the movement pendulum body is as follows: the center of the bottom of the machine core swinging body is provided with a convex part, the center of the head of the balance weight swinging body is provided with a concave part, so that the convex part of the machine core swinging body can be embedded into the concave part of the balance weight swinging body, and the convex part of the machine core swinging body can perform universal motion in the concave part of the balance weight swinging body; the center of the bottom of the movement pendulum body, the center of the head of the balance weight pendulum body, the center of the first X-axis bearing, the center of the second X-axis bearing, the center of the first Y-axis bearing and the center of the second Y-axis bearing are positioned on the same straight line.
Preferably, the sunken part of the movement swinging body is a spherical groove; the convex part of the balance weight pendulum body is a spherical head (31); the counterweight pendulum body further comprises an inverted T-shaped bottom (32), wherein the weight of the inverted T-shaped bottom of the counterweight pendulum body is greater than the weight of the spherical head.
Preferably, the sunken part of the counterweight pendulum body is a spherical groove (321); the bulge of the movement pendulum body is a spherical bottom (311); the weighted pendulum body also includes an inverted T-shaped base (32).
Furthermore, a magnet (4) is arranged below the movement pendulum body and used for reducing the swing stabilization time of the movement pendulum body through magnetic damping.
Furthermore, a swing body locking structure (5) is arranged below the movement swing body and used for reducing the impact and the shaking of the movement swing body when the movement swing body does not work.
Further, the material of the balance weight pendulum body is copper or a non-magnetic metal material with high specific gravity.
Preferably, the laser wavelength of the laser line module is 500-660NM visible light.
The working principle of the invention is that a cardan shaft structure is arranged at the center of the bottom of a core pendulum body of the demarcation device, and the cardan shaft structure is connected with a pendulum body for balancing weight. When the horizontal and vertical gravity center position of the demarcation device is found, the gravity center position of the core pendulum body is automatically adjusted by the balance weight pendulum body connected with the universal shaft due to gravity, and the balance weight pendulum body is fixed to finish the balance weight.
The invention has the advantages that the balance weight pendulum body is arranged to automatically adjust the gravity center position of the core pendulum body, so that the balance weight work of the line projector can be completed in the manufacturing stage of the line projector, the time for a user to adjust the gravity center balance of the line projector is saved, and the working efficiency of the line projector is improved.
Drawings
Fig. 1 is a schematic structural view of a main viewing angle in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a rear view angle in embodiment 1 of the present invention;
fig. 3 is a schematic top view of embodiment 1 of the present invention.
Fig. 4 is a schematic view of an assembly relationship between the movement pendulum body and the counterweight pendulum body according to embodiment 2 of the present invention.
In the figure, 1, a movement bracket; 2. a movement swinging body; 3. a counterweight pendulum body; 4. a magnet; 21. a first laser line module; 22. a second laser line module; 23. a bearing support; 12. a bearing support shaft; 8. a first Y-axis bearing; 9. a first X-axis bearing; 10. a second Y-axis bearing; 11. a second X-axis bearing; 31. a spherical head; 32. an inverted T-shaped bottom; 5. pendulum locking structure. 321. A spherical groove; 311. a spherical bottom.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first", "second" and "third" in the present invention 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," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As shown in fig. 1, 2 and 3, in embodiment 1, a laser demarcation device for rapid counterweight comprises a movement bracket (1), a movement pendulum body (2) and a counterweight pendulum body (3); the movement swinging body can be freely swung and arranged in the movement bracket; at least one group of laser line modules (21) are arranged on the movement swinging body and used for emitting laser lines; the movement pendulum body comprises an X shaft, a Y shaft, a bearing bracket (23) and a bearing supporting shaft (12); the bearing support is used for mounting a first X-axis bearing (9), a second X-axis bearing (11), a first Y-axis bearing (8) and a second Y-axis bearing (10); the bearing support shaft is used for connecting the 4 bearings and the movement swinging body, so that the whole movement swinging body can swing freely to reduce resistance; the balance weight pendulum body can be freely suspended at the center of the bottom of the movement pendulum body in a swinging mode and is used for compensating the weight unbalance of the movement pendulum body.
The assembly relation of the balance weight pendulum body and the movement pendulum body is as follows: the center of the bottom of the machine core swinging body is provided with a sunken part, the center of the head of the balance weight swinging body is provided with a convex part, so that the convex part of the balance weight swinging body can be embedded into the sunken part of the machine core swinging body, and the convex part of the balance weight swinging body can perform universal motion in the sunken part of the machine core swinging body; the center of the bottom of the movement pendulum body, the center of the head of the balance weight pendulum body, the center of the first X-axis bearing, the center of the second X-axis bearing, the center of the first Y-axis bearing and the center of the second Y-axis bearing are positioned on the same straight line.
The sunken part of the movement pendulum body is a spherical groove; the convex part of the balance weight pendulum body is a spherical head (31); the counterweight pendulum body further comprises an inverted T-shaped bottom (32), wherein the weight of the inverted T-shaped bottom of the counterweight pendulum body is greater than the weight of the spherical head.
Furthermore, a magnet (4) is arranged below the movement pendulum body and used for reducing the swing stabilization time of the movement pendulum body through magnetic damping.
Furthermore, a swing body locking structure (5) is arranged below the movement swing body and used for reducing the impact and the shaking of the movement swing body when the movement swing body does not work.
Further, the material of the balance weight pendulum body is copper or a non-magnetic metal material with high specific gravity.
The laser wavelength of the laser line module is 500-660NM visible light.
As shown in fig. 4, in embodiment 2, the assembly relationship between the counterweight pendulum and the movement pendulum is as follows: the center of the bottom of the machine core swinging body is provided with a convex part, the center of the head of the balance weight swinging body is provided with a concave part, so that the convex part of the machine core swinging body can be embedded into the concave part of the balance weight swinging body, and the convex part of the machine core swinging body can perform universal motion in the concave part of the balance weight swinging body; the center of the bottom of the movement pendulum body, the center of the head of the balance weight pendulum body, the center of the first X-axis bearing, the center of the second X-axis bearing, the center of the first Y-axis bearing and the center of the second Y-axis bearing are positioned on the same straight line.
The sunken part of the balance weight pendulum body is a spherical groove (321); the bulge of the movement pendulum body is a spherical bottom (311); the weighted pendulum body also includes an inverted T-shaped base (32).
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A laser demarcation device for rapid counterweight is characterized by comprising a machine core bracket (1), a machine core pendulum body (2) and a counterweight pendulum body (3); the movement swinging body can be freely swung and arranged in the movement bracket; at least one group of laser line modules (21) are arranged on the movement swinging body and used for emitting laser lines; the movement pendulum body comprises an X shaft, a Y shaft, a bearing bracket (23) and a bearing supporting shaft (12); the bearing support is used for mounting a first X-axis bearing (9), a second X-axis bearing (11), a first Y-axis bearing (8) and a second Y-axis bearing (10); the bearing support shaft is used for connecting the 4 bearings and the movement swinging body, so that the whole movement swinging body can swing freely to reduce resistance; the balance weight pendulum body can be freely suspended at the center of the bottom of the movement pendulum body in a swinging mode and is used for compensating the weight unbalance of the movement pendulum body.
2. The laser demarcation device of the quick counterweight according to claim 1, wherein the assembly relationship between the counterweight pendulum body and the movement pendulum body is as follows: the center of the bottom of the machine core swinging body is provided with a sunken part, the center of the head of the balance weight swinging body is provided with a convex part, so that the convex part of the balance weight swinging body can be embedded into the sunken part of the machine core swinging body, and the convex part of the balance weight swinging body can perform universal motion in the sunken part of the machine core swinging body; the center of the bottom of the movement pendulum body, the center of the head of the balance weight pendulum body, the center of the first X-axis bearing, the center of the second X-axis bearing, the center of the first Y-axis bearing and the center of the second Y-axis bearing are positioned on the same straight line.
3. The laser demarcation device of the quick counterweight according to claim 1, wherein the assembly relationship between the counterweight pendulum body and the movement pendulum body is as follows: the center of the bottom of the machine core swinging body is provided with a convex part, the center of the head of the balance weight swinging body is provided with a concave part, so that the convex part of the machine core swinging body can be embedded into the concave part of the balance weight swinging body, and the convex part of the machine core swinging body can perform universal motion in the concave part of the balance weight swinging body; the center of the bottom of the movement pendulum body, the center of the head of the balance weight pendulum body, the center of the first X-axis bearing, the center of the second X-axis bearing, the center of the first Y-axis bearing and the center of the second Y-axis bearing are positioned on the same straight line.
4. The laser demarcation device for the quick counterweight according to claim 2, wherein the concave part of the movement pendulum body is a spherical groove; the convex part of the balance weight pendulum body is a spherical head (31); the counterweight pendulum body further comprises an inverted T-shaped bottom (32), wherein the weight of the inverted T-shaped bottom of the counterweight pendulum body is greater than the weight of the spherical head.
5. The laser demarcation device of the rapid counterweight according to claim 3, wherein the recessed portion of the counterweight pendulum body is a spherical groove (321); the bulge of the movement pendulum body is a spherical bottom (311); the weighted pendulum body also includes an inverted T-shaped base (32).
6. The laser demarcation device of the rapid counterweight according to claim 1, wherein a magnet (4) is arranged below the movement pendulum body and used for reducing the swing stabilization time of the movement pendulum body through magnetic damping.
7. The laser demarcation device of the quick counterweight according to claim 1, characterized in that a pendulum locking structure (5) is arranged below the movement pendulum for reducing the impact and the shaking of the movement pendulum when not in operation.
8. The laser demarcation device of the rapid counterweight according to claim 1, wherein the counterweight pendulum body is made of copper or a non-magnetic metal material with high specific gravity.
9. The laser demarcation device for rapid weight balancing of claim 1, wherein the laser wavelength of the laser line module is 500-660NM visible light.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281214.0A CN113155108A (en) | 2021-03-16 | 2021-03-16 | Laser demarcation device of quick counter weight |
| PCT/CN2021/081415 WO2022193201A1 (en) | 2021-03-16 | 2021-03-18 | Laser level for fast counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281214.0A CN113155108A (en) | 2021-03-16 | 2021-03-16 | Laser demarcation device of quick counter weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113155108A true CN113155108A (en) | 2021-07-23 |
Family
ID=76887302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110281214.0A Pending CN113155108A (en) | 2021-03-16 | 2021-03-16 | Laser demarcation device of quick counter weight |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113155108A (en) |
| WO (1) | WO2022193201A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322966A (en) * | 2022-03-09 | 2022-04-12 | 北京建工集团有限责任公司 | Automatic leveling device, automatic leveling liftable multi-angle measuring prism and method |
| WO2023070383A1 (en) * | 2021-10-27 | 2023-05-04 | 深圳市长毛象电子有限公司 | Pendulum-type laser demarcation device with suction fixing device and demarcation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200918865A (en) * | 2007-10-24 | 2009-05-01 | xin-zhi Dong | Supporting device of level plumb |
| CN101178311A (en) * | 2007-11-09 | 2008-05-14 | 顺阳激光仪器（上海）有限公司 | Axial direction free spin device |
| DE102009002771A1 (en) * | 2009-04-30 | 2010-11-11 | Hilti Aktiengesellschaft | Laser device with an adjustable pendulum device |
| CN209230623U (en) * | 2018-12-27 | 2019-08-09 | 江苏绿光侠精密仪器有限公司 | A kind of balance weight adjusting structure applied on laser leveler pendulum mass |
| CN109737936A (en) * | 2019-03-12 | 2019-05-10 | 安徽三建工程有限公司 | A kind of portable pendulum mass formula self leveling laser hangs down quasi- cultellation instrument |
| CN212298323U (en) * | 2020-05-29 | 2021-01-05 | 张卫东 | Laser level measurement device for building engineering |
| CN212513029U (en) * | 2020-07-03 | 2021-02-09 | 珠海镭沃科技有限公司 | Pendulum body core device of laser demarcation device |
| CN212620751U (en) * | 2020-08-19 | 2021-02-26 | 常州米德克光电科技有限公司 | Laser demarcation device core |
| CN112284361A (en) * | 2020-11-26 | 2021-01-29 | 珠海大齐天光电科技有限公司 | Pendulum body core device of laser demarcation device, assembling method and debugging method |
-
2021
- 2021-03-16 CN CN202110281214.0A patent/CN113155108A/en active Pending
- 2021-03-18 WO PCT/CN2021/081415 patent/WO2022193201A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023070383A1 (en) * | 2021-10-27 | 2023-05-04 | 深圳市长毛象电子有限公司 | Pendulum-type laser demarcation device with suction fixing device and demarcation method thereof |
| CN114322966A (en) * | 2022-03-09 | 2022-04-12 | 北京建工集团有限责任公司 | Automatic leveling device, automatic leveling liftable multi-angle measuring prism and method |
| CN114322966B (en) * | 2022-03-09 | 2022-07-01 | 北京建工集团有限责任公司 | Automatic leveling device, automatic leveling liftable multi-angle measuring prism and method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022193201A1 (en) | 2022-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113155108A (en) | Laser demarcation device of quick counter weight | |
| CN100595516C (en) | Laser alignment apparatus | |
| CN212513029U (en) | Pendulum body core device of laser demarcation device | |
| CN217083737U (en) | Digital display electronic inclinometer with straight line marking function | |
| CN110562504A (en) | Cold air propeller thrust measuring device | |
| CN209399987U (en) | A kind of portable pendulum mass formula self leveling laser hangs down quasi- cultellation instrument | |
| CN214426714U (en) | Laser demarcation device of quick counter weight | |
| CN114088293A (en) | Blade mass moment measuring tool and blade mass moment measuring method | |
| CN109737936A (en) | A kind of portable pendulum mass formula self leveling laser hangs down quasi- cultellation instrument | |
| CN207487678U (en) | A kind of surveying instrument tripod for being convenient for leveling with prompting | |
| CN216483037U (en) | Pendulum type laser demarcation device with adsorption fixing device | |
| CN213935141U (en) | Linear light beam smoke fire detector | |
| CN205594181U (en) | Marine gravimeter stabilized platform's frame set spare | |
| CN113984024A (en) | Pendulum type laser demarcation device with adsorption fixing device and demarcation method thereof | |
| CN111780839B (en) | Blade root supporting device for blade weighing and blade weighing method | |
| CN211289376U (en) | Surveying and mapping engineering is with supporting balancing stand | |
| CN220322356U (en) | Foundation pit paying-off level gauge | |
| CN207621602U (en) | A kind of universal suspension gear of Laser Line Marker | |
| CN218066497U (en) | Sixteen-line electronic leveling laser level | |
| CN210400265U (en) | Two-degree-of-freedom rotation test device | |
| CN216348581U (en) | Building gradient monitoring devices | |
| CN216954367U (en) | Horizontal standard instrument for mechanical design and manufacture | |
| CN214066419U (en) | High-precision gravity center measuring equipment | |
| CN113607094B (en) | Contact net slope laser measuring device and method | |
| CN217980321U (en) | Laser instrument capable of casting line, fixing point marking and ranging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221101 Address after: 518000 4th floor, building e, Tangtou first industrial zone, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Dolby Laser Co.,Ltd. Address before: 518000 Shenzhen, Guangdong Guangming New District Gongming office, Tian Liao community guangguangxin Park West seven, Qiao de science and Technology Park building, six B building. Applicant before: SHENZHEN DOBIY ELECTRONIC Co.,Ltd. |
|
| TA01 | Transfer of patent application right |