CN215930831U - Deep level displacement monitoring devices - Google Patents
Deep level displacement monitoring devices Download PDFInfo
- Publication number
- CN215930831U CN215930831U CN202121818943.7U CN202121818943U CN215930831U CN 215930831 U CN215930831 U CN 215930831U CN 202121818943 U CN202121818943 U CN 202121818943U CN 215930831 U CN215930831 U CN 215930831U
- Authority
- CN
- China
- Prior art keywords
- inclination measuring
- measuring unit
- inclinometer
- elastic
- pipe
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a deep layer displacement monitoring device, which comprises an inclinometer pipe which is arranged in an underground deep layer monitoring hole and keeps vertically downward, wherein a plurality of guide grooves are uniformly distributed on the inner wall of the inclinometer pipe in the circumferential direction, and extend along the axial direction of the inclinometer pipe; the inclination measuring unit is connected with the data processing device through a cable; a plurality of elastic guide wheels are uniformly distributed on the outer circumference of the inclination measuring unit in the same diameter direction, the inclination measuring unit is suspended in the inclination measuring pipe, and each elastic guide wheel on the inclination measuring unit is elastically clamped into the corresponding groove guide and is attached to the groove guide, so that the inclination measuring unit can move in the inclination measuring pipe and is kept vertically arranged downwards. The inclination measuring unit is simple in structure, low in cost, convenient and quick to disassemble and assemble, capable of being recycled for multiple times, high in installation accuracy of the inclination measuring unit, good in monitoring accuracy, stability and deformation adaptability and strong in practicability.
Description
Technical Field
The utility model relates to a deep level displacement monitoring device, and belongs to the technical field of monitoring equipment.
Background
In the projects of slope management, embankment filling, earth excavation, foundation treatment and the like, the monitoring of the horizontal displacement of the deep layer of the soil body is needed to know the displacement deformation of the soil body at different depths in the project construction process, so that the construction safety is ensured. At present, the soil deep horizontal displacement monitoring is mainly an inclinometer tube method, namely, an inclinometer tube is buried in a soil body of a measuring point, an inclinometer sensor is lifted in a monitoring hole in a manual mode, and data acquisition is carried out point by point according to a fixed measuring depth interval (generally 0.5 m), and although the method is simple to operate, the method has the use limitation and a plurality of defects: (1) the inclination measuring sensor is lifted in the inclination measuring pipe through the guide pulley, in order to facilitate lifting movement, the pulley is in clearance fit with the inner wall of the inclination measuring pipe, a large measurement error exists, the accuracy of data is seriously influenced, and if the clearance between the guide pulley and the inner wall of the inclination measuring pipe is reduced, the problems that the pulley is difficult to mount, easy to damage and the like exist; (2) when the displacement of an underground deeper layer is measured, a plurality of inclination measuring sensors need to be installed, so that the stress of a measuring stay wire is large, deformation or fracture is generated, and the service life of the measuring stay wire is shortened; (3) the existing inclination measuring device has single function, and other special devices are needed when the underground deep water level and the like are needed to be measured.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a deep level displacement monitoring device, which can overcome the disadvantages of the prior art.
The purpose of the utility model is realized by the following technical scheme:
a deep level displacement monitoring device comprises an inclinometer pipe which is arranged in an underground deep level monitoring hole and keeps vertically downward, wherein a plurality of guide grooves are uniformly distributed on the inner wall of the inclinometer pipe in the circumferential direction, and extend along the axial direction of the inclinometer pipe; the inclination measuring unit is connected with the data processing device through a cable; a plurality of elastic guide wheels are uniformly distributed on the outer circumference of the inclination measuring unit in the circumferential direction, the inclination measuring unit is suspended in the inclination measuring pipe, and each elastic guide wheel on the inclination measuring unit is elastically clamped into the corresponding guide groove and attached to the corresponding guide groove, so that the inclination measuring unit can move in the inclination measuring pipe and keeps vertically and downwards arranged.
The inclination measuring units are arranged in a plurality and are sequentially connected in series through cables; the top end of the inclinometer pipe is provided with a cover body, and the cover body is connected with a string of inclinometer units suspended in the inclinometer pipe through a cable for limiting the suspension of the inclinometer units and preventing sundries and sewage from entering the inclinometer pipe.
The elastic guide wheel comprises a plurality of idler wheels matched with the guide grooves, and each idler wheel is fixedly connected with the inclination measuring unit through an elastic structure.
The elastic structure is an angle type elastic sheet, a plurality of cross sinking grooves which are opposite to the guide grooves in the inclinometer are uniformly distributed on the outer surface of the inclinometer unit, the short edge of the angle type elastic sheet is connected in the cross sinking grooves through threaded plates in a threaded mode, the two elastic sheets which are symmetrical relative to the axis form a V-shaped structure with an upward opening, and the top end of the long edge is hinged with the roller.
The elastic guide wheels are two symmetrical parts which are arranged at two sides of the inclination measuring unit, two symmetrical cross-shaped sinking grooves are formed in the outer surface of the inclination measuring unit, the elastic pieces are fixedly connected in the cross-shaped sinking grooves through screws, and the two elastic pieces form a V-shaped structure with an upward opening;
at least two groups of elastic guide wheels are arranged on the inclination measuring unit and are respectively arranged on the upper section and the lower section of the inclination measuring unit, so that the inclination measuring unit is kept in a vertical state relative to the inclination measuring pipe.
The aforesaid lid is including being greater than the spacing boss of deviational survey intraductal hole, and spacing boss bottom surface is equipped with the sealing plug that matches with the deviational survey intraductal hole, and the outer circumference equipartition of sealing plug has a plurality ofly and the protruding of the direction recess adaptation in the deviational survey pipe, realizes lid and deviational survey pipe sealing connection.
The limiting boss, the sealing plug and the protrusion are of an integrated structure; more than one cable fixing hole and more than one additional steel wire rope mounting hole are formed in the cover body.
And a counterweight is detachably connected to the inclination measuring unit at the lowest end.
The inclination measuring unit is a three-axis acceleration sensor, an inclination measuring sensor or an inclinometer.
Compared with the prior art, the deep layer displacement monitoring device disclosed by the utility model comprises an inclinometer pipe which is arranged in an underground deep layer monitoring hole and keeps vertically downward, wherein a plurality of guide grooves are uniformly distributed on the inner wall of the inclinometer pipe in the circumferential direction and extend along the axial direction of the inclinometer pipe; the inclination measuring unit is connected with the data processing device through a cable; a plurality of elastic guide wheels are uniformly distributed on the outer circumference of the inclination measuring unit in the same diameter direction, the inclination measuring unit is suspended in the inclination measuring pipe, and each elastic guide wheel on the inclination measuring unit is elastically clamped into the corresponding guide groove and attached to the corresponding guide groove, so that the inclination measuring unit can move in the inclination measuring pipe and is kept vertically arranged downwards. Firstly, the elastic guide wheel can be adopted to realize zero clearance fit between the roller and the guide groove, and ensure that the inclination measuring unit can move in the inclination measuring pipe and always keep vertically downward, the installation precision of the inclination measuring unit is high, the monitoring accuracy is good, and the inclination measuring unit has an elastic shock absorption function, is slightly interfered by the outside and has good monitoring stability; secondly, the plurality of inclination measuring units are flexibly connected through cables, so that when the mountain body deforms, the plurality of inclination measuring units can be consistent with the mountain body deformation, and the monitoring accuracy is guaranteed; in addition, the inclinometry unit is a plurality of settings and establishes ties in order through the cable conductor and be in the same place, and the series connection quantity can be increased and decreased according to the degree of depth in monitoring hole, and application scope is wide, can also realize low different degree of depth segmentation data collection, and the monitoring accuracy is high, does not need the manual work to pause the data collection at the monitoring point of the different degree of depth, has avoided artificial error.
The top end of the inclinometer pipe is provided with a cover body, and the cover body is connected with a string of inclinometer units suspended in the inclinometer pipe through a cable for limiting the suspension of the inclinometer units and preventing sundries and sewage from entering the inclinometer pipe. Specifically, the height position of a plurality of inclination units can be adjusted through the lid to a plurality of flexibly linked inclination units, during installation, can make whole inclination unit suspend in midair in the deviational survey pipe and the inclination unit of lower extreme can not contact the deviational survey pipe bottom, when the massif warp, has guaranteed that a plurality of inclination units can the self-adaptation change to ensure that a plurality of inclination units are unlikely to receive the deformation of massif and destroy.
The elastic guide wheel adopts a ═ type elastic sheet structure to realize elastic connection, has small volume, is beneficial to the miniaturization of the inclination measuring unit and reduces the cost; the symmetrical arrangement is superior to the symmetrical arrangement, and the symmetrical and uniform stress is ensured.
The utility model has the beneficial effects that:
(1) the inclination measuring device has the advantages of simple structure, low cost, convenient and quick assembly and disassembly, recyclability for multiple times, high installation precision of the inclination measuring unit, and good monitoring precision, stability and deformation adaptability;
(2) the additional cover body can be used for carrying out suspension limiting, dust prevention and water prevention, so that the monitoring device is effectively protected, the failure rate of equipment is reduced, and the service life of the equipment is prolonged;
(3) the underground displacement monitoring device has the functions of monitoring underground displacement, inclination angle, water level, rainfall and the like, and is high in practicability.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of an installation state of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic view showing a connection structure of the inclination measuring unit 2 and the elastic guide wheel 3.
Fig. 4 is a schematic diagram of a connection structure of the inclination measuring unit 2 and the elastic guide wheel 3.
Fig. 5 is a schematic structural view of the elastic guide wheel 3.
Fig. 6 is a schematic structural view of the inclinometer 1.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the utility model only and are not limiting upon the scope of the utility model.
As shown in fig. 1-6, a deep layer displacement monitoring device, which is placed in a monitoring hole at the periphery of a monitored object and is used for monitoring the displacement condition of the underground deep layer, comprises an inclinometer 1, an inclinometer unit 2, an elastic guide wheel 3 and a data processing device 4; the inclinometer 1 is arranged in the monitoring hole, and cement mortar is injected into a gap between the outer wall of the inclinometer 1 and the inner wall of the monitoring hole, so that the inclinometer 1 is vertically and downwards arranged; a plurality of guide grooves 101 are uniformly distributed on the inner wall of the inclinometer 1 in the circumferential direction, and the guide grooves 101 extend along the axial direction of the inclinometer 1; the elastic guide wheels 3 are at least two and circumferentially and uniformly distributed on the inclination measuring unit 2, each elastic guide wheel 3 comprises a plurality of idler wheels 301 matched with the guide grooves 101, and each idler wheel 301 is fixedly connected with the inclination measuring unit 2 through an elastic structure 302; the inclination measuring unit 2 is connected with a data processing device 4 through a cable 5, and the data processing device 4 is used for collecting and processing monitoring data of the inclination measuring unit 2; the inclination measuring unit 2 is suspended in the inclination measuring pipe 1, each elastic guide wheel 3 on the inclination measuring unit 2 is correspondingly clamped into the corresponding groove 101, the elastic guide wheels 3 are attached to the grooves 101 under the action of the elastic structures, and the inclination measuring unit 2 is free from deflection errors while each elastic guide wheel 3 moves in the corresponding groove 101.
The inclinometer unit 2 is a plurality of and establishes ties together in order through cable conductor 5 for a plurality of settings, the quantity that sets up of inclinometer unit 2 is confirmed through the underground deep floor size of treating the monitoring, every inclinometer unit 2 is used for monitoring one section of inclinometer pipe 1 to obtain the axial of this section inclinometer pipe 1 and plumbous contained angle in real time.
The top end of the inclinometer tube 1 is provided with a cover body 6, and the cover body 6 is connected with the inclinometer units 2 which are connected in series and used for limiting the suspension of the inclinometer units 2 and preventing sundries and rainwater from entering the inclinometer tube 1.
The cover body 6 comprises a limiting boss 601 larger than the inner hole of the inclinometer tube 1, a sealing plug 602 matched with the inner hole of the inclinometer tube 1 is arranged on the bottom surface of the limiting boss 601, and a plurality of bulges 603 matched with the guide grooves 101 in the inclinometer tube 1 are uniformly distributed on the outer circumference of the sealing plug 602, so that the cover body 6 is in sealing connection with the inclinometer tube 1.
The cover body 6 is made of rubber or stainless steel, and the limit boss 601, the sealing plug 602 and the protrusion 603 included in the cover body are of an integrated structure.
More than one cable fixing hole 604 is arranged on the cover body 6, one end of the cable 5 is connected in series with the inclination measuring unit 2, and the other end of the cable is fixed through the cable fixing hole 604 and penetrates out of the cover body 6 to be connected with the data processing device 4 arranged outside the monitoring hole. More than one cable fixing hole 604 is arranged, so that a plurality of cables with different functions can be installed, and the cables with different functions are correspondingly connected with the inclination measuring unit 2, the rain gauge, the water level meter, the osmometer and the like respectively to realize multi-parameter simultaneous acquisition.
More than one additional steel wire rope mounting holes 605 are formed in the cover body 6, when the underground to be monitored is deep, in order to reduce the bearing capacity of the cable 5, steel wire ropes are sequentially added among the serially connected inclination measuring units 2, and the stress of the cable 5 is reduced through the bearing of the steel wire ropes.
The inclinometer unit 2 at the lowest end is detachably connected with a counterweight 7, and the counterweight 7 is used for providing downward tension for the inclinometer unit 2 connected in series, so that the inclinometer unit 2 is vertically placed in the inclinometer pipe 1 and smoothly moves.
Carry out the monitoring of deep level displacement, at first carry out inclinometer pipe 1, inclinometer unit 2, data processing device 4's installation, when the displacement takes place for the deep underground layer of monitoring hole department, the inclinometer pipe 1 that links firmly as an organic whole with the deep underground layer can take place the skew thereupon, hangs inclinometer unit 2 in inclinometer pipe 1 and will monitor the axial of inclinometer pipe 1 and plumbous vertical skew angle displacement volume, gathers and handles through data processing device 4 simultaneously the monitoring data of inclinometer unit 2, the condition that the deep underground layer that learns the monitoring point position takes place the displacement can be through the real-time supervision information of monitoring hole to the monitoring personnel of being convenient for.
The elastic structure 302 is a ≤ type elastic sheet, a plurality of cross sink grooves 201 which are opposite to the guide grooves 101 in the inclinometer pipe are uniformly distributed on the outer surface of the inclinometer unit 2, the short side of the ≤ type elastic sheet is screwed in the cross sink grooves 201 through a thread plate 303, and a V-shaped structure with an upward opening is formed by two elastic sheets which are symmetrical relative to the axis, the top end of the long side of the ≤ type elastic sheet is arranged to be a fork-shaped structure, and the roller 301 is hinged in the middle of the fork-shaped structure.
The elastic guide wheels 3 are symmetrically arranged on two sides of the inclination measuring unit 2, two symmetrical cross-shaped sinking grooves 201 are formed in the outer surface of the inclination measuring unit 2, the elastic pieces are fixedly connected in the cross-shaped sinking grooves through screws, and the two elastic pieces form a V-shaped structure with an upward opening.
At least two groups of elastic guide wheels 3 are arranged on one inclination measuring unit 2 and are respectively arranged on the upper section and the lower section of the inclination measuring unit 2, so that the inclination measuring unit 2 can better keep a vertical state relative to the inclination measuring pipe 1, and the measuring precision of the inclination measuring unit 2 can be further improved.
The inclinometer 1 is formed by splicing multiple sections of pipe sections, and the splicing length can be increased or decreased according to the depth of the monitoring hole.
The inclination measuring unit 2 comprises a cylindrical shell, and a three-axis acceleration sensor, an inclination measuring sensor or an inclinometer are arranged in the cylindrical shell.
The data processing device 4 comprises a fixed support 401 fixedly connected beside the monitoring hole, an acquisition instrument 402 connected with the inclinometer unit 2 is arranged on the fixed support 401, and the acquisition instrument 402 is electrically connected with a solar power supply device 403 arranged at the top end of the fixed support 401.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention without departing from the technical spirit of the present invention are within the scope of the present invention.
Claims (10)
1. A deep level displacement monitoring device comprises an inclinometer pipe (1) which is arranged in an underground deep level monitoring hole and is kept vertically and downwards, wherein a plurality of guide grooves (101) are uniformly distributed on the inner wall of the inclinometer pipe (1) in the circumferential direction, and the guide grooves (101) extend along the axial direction of the inclinometer pipe (1); the method is characterized in that: the inclination measuring device also comprises an inclination measuring unit (2), wherein the inclination measuring unit (2) is connected with the data processing device (4) through a cable (5); a plurality of elastic guide wheels (3) are uniformly distributed on the outer circumference of the inclination measuring unit (2), the inclination measuring unit (2) is suspended in the inclination measuring pipe (1), and each elastic guide wheel (3) on the inclination measuring unit is elastically clamped into the corresponding guide groove (101) and attached to the corresponding guide groove, so that the inclination measuring unit (2) can move in the inclination measuring pipe (1) and keep vertical downward arrangement.
2. The deep level displacement monitoring device of claim 1, wherein: the inclination measuring units (2) are arranged in a plurality and are sequentially connected in series through cables (5); the top end of the inclinometer tube (1) is provided with a cover body (6), the cover body (6) is connected with a string of inclinometer units (2) hung in the inclinometer tube (1) through a cable (5) and used for limiting the hanging of the inclinometer units (2) and preventing sundries and sewage from entering the inclinometer tube (1).
3. The deep level displacement monitoring device of claim 2, wherein: the elastic guide wheel (3) comprises a plurality of idler wheels (301) matched with the guide grooves (101), and each idler wheel (301) is fixedly connected with the inclination measuring unit (2) through an elastic structure (302).
4. The deep level displacement monitoring device of claim 3, wherein: the elastic structure (302) is a ^ type elastic sheet, a plurality of positions are uniformly distributed on the outer surface of the inclinometer unit (2) and are in a cross sinking groove (201) opposite to the guide groove (101) in the inclinometer, the short side of the ^ type elastic sheet is screwed in the cross sinking groove (201) through a thread plate (303), two elastic sheets symmetrical relative to the axis form a V-shaped structure with an upward opening, and the long side is hinged with the roller (301).
5. The deep level displacement monitoring device of claim 4, wherein: the elastic guide wheels (3) are symmetrically arranged on two sides of the inclination measuring unit (2), two symmetrical cross-shaped sinking grooves 201 are formed in the outer surface of the inclination measuring unit (2), the elastic pieces are fixedly connected in the cross-shaped sinking grooves through screws, and the two elastic pieces form a V-shaped structure with an upward opening.
6. The deep level displacement monitoring device of claim 5, wherein: at least two groups of elastic guide wheels (3) are arranged on one inclination measuring unit (2) and are respectively arranged on the upper section and the lower section of the inclination measuring unit (2), so that the inclination measuring unit (2) keeps a vertical state relative to the inclination measuring pipe (1).
7. The deep level displacement monitoring device of claim 2, wherein: the cover body (6) comprises a limiting boss (601) which is larger than an inner hole of the inclinometer tube (1), a sealing plug (602) which is matched with the inner hole of the inclinometer tube (1) is arranged on the bottom surface of the limiting boss (601), a plurality of bulges (603) which are matched with the guide grooves (101) in the inclinometer tube (1) are uniformly distributed on the outer circumference of the sealing plug (602), and the cover body (6) is hermetically connected with the inclinometer tube (1).
8. The deep level displacement monitoring device of claim 7, wherein: the limiting boss (601), the sealing plug (602) and the protrusion (603) are of an integrated structure; the cover body (6) is provided with more than one cable fixing hole (604) and more than one additional steel wire rope mounting hole (605).
9. The deep level displacement monitoring device of any one of claims 1 to 8, wherein: a counterweight (7) is detachably connected to the inclination measuring unit (2) at the lowest end.
10. The deep level displacement monitoring device of claim 9, wherein: the inclination measuring unit (2) is a three-axis acceleration sensor, an inclination measuring sensor or an inclinometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121818943.7U CN215930831U (en) | 2021-08-05 | 2021-08-05 | Deep level displacement monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121818943.7U CN215930831U (en) | 2021-08-05 | 2021-08-05 | Deep level displacement monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215930831U true CN215930831U (en) | 2022-03-01 |
Family
ID=80398827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121818943.7U Active CN215930831U (en) | 2021-08-05 | 2021-08-05 | Deep level displacement monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215930831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478839A (en) * | 2022-11-02 | 2022-12-16 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Fixed-distance monitoring system for geological exploration drilling inclination angle and using method |
-
2021
- 2021-08-05 CN CN202121818943.7U patent/CN215930831U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478839A (en) * | 2022-11-02 | 2022-12-16 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Fixed-distance monitoring system for geological exploration drilling inclination angle and using method |
| CN115478839B (en) * | 2022-11-02 | 2023-01-24 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Fixed-distance monitoring system for geological exploration drilling inclination angle and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113203368B (en) | Detection method of pile foundation pore-forming shape and verticality detection device | |
| CN215930831U (en) | Deep level displacement monitoring devices | |
| CN211291830U (en) | High-efficient safe earth's surface settlement monitoring devices | |
| CN113513308A (en) | Wellhead protection device for underground water automatic monitoring well and installation and use methods | |
| CN207215805U (en) | A kind of bilge well pH detection means with warning function | |
| CN113188517A (en) | Monitoring system for deformation of deep rock mass in landslide exploration well and data processing method | |
| CN208313959U (en) | A kind of groundwater quality on-Line Monitor Device | |
| CN111636495A (en) | Deep level displacement monitoring device and monitoring method | |
| CN114059518B (en) | Integrated multiparameter engineering monitoring device and matrix type monitoring system | |
| CN116697863A (en) | Device for surveying depth of underground cavity or gap of karst landform | |
| CN108508172A (en) | A kind of groundwater quality on-Line Monitor Device | |
| CN215003816U (en) | Water level monitoring device for water conservancy construction | |
| CN216206296U (en) | Civil engineering construction wall body straightness measuring device that hangs down | |
| CN205175953U (en) | Groundwater water quality monitoring system is data acquisition device in pit | |
| CN213118026U (en) | Drainage pipe dredging and dredging detection equipment | |
| CN114812499A (en) | Settlement monitoring device for constructional engineering and use method thereof | |
| CN216046496U (en) | Building engineering surveying and mapping device with toppling protection function | |
| CN217738215U (en) | Deep displacement monitoring devices of waterproof type of degree of depth | |
| CN114705338A (en) | Real-time monitoring device and monitoring method for scouring of offshore wind power pile foundation | |
| CN210638767U (en) | Water level monitor | |
| CN209277144U (en) | Electrical equipment groundwork detection device | |
| CN115163047A (en) | Geological survey is with drilling water level survey equipment | |
| CN214301880U (en) | Foundation pit deformation monitoring device | |
| CN217541992U (en) | A ground altitude variation monitoring devices for ground bearing capacity detects | |
| CN216206797U (en) | Detection device for building engineering supervision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Wenqing Inventor after: Zhang Yufang Inventor after: Yuan Kun Inventor after: Yang Zhongmin Inventor after: Ran Ruifeng Inventor before: Wang Wenqing Inventor before: Ran Ruifeng |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220810 Address after: 102600 room 3150, 1 / F, building 6, 18 Jinxing Road, Daxing District, Beijing Patentee after: BEIJING JIUGAN TECHNOLOGY CO.,LTD. Patentee after: CARS RAILWAY ENGINEERING Research Institute Address before: Room 3150, floor 1, building 6, No. 18, Daxing District, Beijing 102600 Patentee before: BEIJING JIUGAN TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |