CN211717411U - Measuring device is used in civil engineering construction - Google Patents
Measuring device is used in civil engineering construction Download PDFInfo
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- CN211717411U CN211717411U CN202020280013.XU CN202020280013U CN211717411U CN 211717411 U CN211717411 U CN 211717411U CN 202020280013 U CN202020280013 U CN 202020280013U CN 211717411 U CN211717411 U CN 211717411U
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Abstract
The utility model discloses a measuring device for civil engineering construction, which comprises a support, a measuring module, a horizontal adjusting module and a control module, wherein the horizontal adjusting module comprises a support rod and a vertical driving mechanism; the horizontal adjusting module also comprises a fine adjusting mechanism, the fine adjusting mechanism comprises an inflatable cushion and an air supply mechanism, wherein the supporting rod is a hollow shaft, the upper end of the supporting rod is connected with the air supply mechanism through an air conveying pipeline, and the lower end of the supporting rod is communicated with the inflatable cushion; the control module comprises a horizontal sensor and a controller, wherein the output end of the horizontal sensor is connected with the controller; the controller receives and processes the detection signal of the horizontal sensor to control the air supply mechanism and the vertical driving mechanism in the corresponding horizontal adjusting module to work so as to adjust the levelness of the support. The utility model discloses a measuring device can adopt electric regulation's mode to adjust this measuring device's levelness, and not only the precision is higher, labour saving and time saving moreover.
Description
Technical Field
The utility model relates to a measuring device, concretely relates to measuring device is used in civil engineering construction.
Background
The length is usually required to be measured during civil construction, but the levelness of the measuring device is difficult to ensure, errors are often generated during measurement due to uneven arrangement of the measuring device, so that the measuring result is inaccurate, in order to solve the problem, a measuring device capable of adjusting the levelness appears on the market, for example, the invention patent application with the application publication number of CN108151708A discloses a measuring device for civil engineering construction, two ends of the lower side of a base of the measuring device are provided with strip-shaped grooves, two strip-shaped grooves are respectively provided with a balance plate, two sides of the two balance plates are respectively provided with a slide rail, the bases at two sides of the two strip-shaped grooves are respectively fixed with a slide block, the centers of the upper sides of the two balance plates are respectively penetrated and fixed with a threaded pipe, the bases at the upper sides of the two strip-shaped grooves are respectively provided with a T-shaped groove, two T-shaped threaded rods are respectively arranged in the two T-shaped grooves, and, the device comprises a base, a gear rotating button, a gear rotating rod, a circular groove, a dial and a pointer, wherein the gear rotating button is fixed between the two T-shaped threaded rods through the base, the gear rotating button is sleeved outside the two T-shaped threaded rods, the circular groove is formed in one side of the base, the dial is fixed on the base inside the circular groove, and the pointer is hinged to the center of one side of the dial through a support column.
However, the above-mentioned measuring device has the following disadvantages:
1. in the process of adjusting the levelness of the measuring device, the gear rotating button needs to be rotated manually, so that the balance plate is driven to move vertically, the levelness of the measuring device is adjusted, but because the measuring device needs to be adjusted manually, an operator needs to spend a long time to adjust the levelness of the measuring device, time and labor are wasted, and the efficiency is reduced.
2. Although the measuring device can adapt to different working environments by adjusting the levelness of the measuring device, on the ground of some potholes, the levelness of the measuring device is difficult to adjust due to the hard contact between the balance plate of the measuring device and the ground.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a measuring device for civil engineering construction, measuring device can adopt this measuring device's levelness of mode regulation of electrical control, and not only the precision is higher, and speed is faster, but also labour saving and time saving.
The utility model provides a technical scheme of above-mentioned technical problem is:
a measuring device for civil engineering construction comprises a support, a measuring module arranged on the support, a horizontal adjusting module used for adjusting the levelness of the measuring module and a control module used for controlling the horizontal adjusting module to work, wherein,
the horizontal adjusting modules are distributed around the support, and each horizontal adjusting module comprises a supporting rod and a vertical driving mechanism for driving the supporting rod to do vertical motion;
the horizontal adjusting module also comprises a fine adjusting mechanism, the fine adjusting mechanism comprises an inflatable cushion arranged at the lower end of the supporting rod and a gas supply mechanism used for inflating the inflatable cushion, wherein the supporting rod is a hollow shaft, the upper end of the supporting rod is connected with the gas supply mechanism through a gas conveying pipeline, and the lower end of the supporting rod is communicated with the inflatable cushion;
the control module comprises a horizontal sensor arranged on the support and a controller used for receiving a detection signal of the horizontal sensor to control the vertical driving mechanism and the air supply mechanism to work, wherein the horizontal sensor is used for detecting the levelness of the support, and the output end of the horizontal sensor is connected with the controller; the controller receives and processes the detection signal of the horizontal sensor to control the air supply mechanism and the vertical driving mechanism in the corresponding horizontal adjusting module to work so as to adjust the levelness of the support.
Preferably, the vertical driving mechanism comprises a screw rod transmission mechanism and a rotating mechanism for driving a screw rod nut in the screw rod transmission mechanism to rotate, wherein the screw rod nut is sleeved on the supporting rod and is rotatably connected to the support; and the outer surface of the support rod is provided with an external thread matched with the internal thread of the screw rod nut, and the support rod forms a screw rod in the screw rod transmission mechanism.
Preferably, rotary mechanism includes driving motor and drive mechanism, drive mechanism include the driving gear and with driving gear engaged with driven gear, wherein, the driving gear is installed on driving motor's main shaft, screw-nut's surface be provided with the interlock tooth of the teeth of a cogwheel meshing of driving gear, this screw-nut constitutes driven gear.
Preferably, the air supply mechanism includes the inflator pump and sets up the bracing piece inside with the inner chamber complex slider of bracing piece, wherein, the inflator pump with connect through gas transmission pipeline between the slider, the lower extreme of slider is provided with the gas outlet, is provided with the sealing washer between the inner chamber of surface and the bracing piece of this slider.
Preferably, the level sensor may be an electronic level.
Preferably, the vertical driving mechanism further comprises a lifting mechanism arranged on the support and used for driving the driving motor to vertically move, wherein a power input shaft of the inflator pump is provided with a transmission gear, and when the lifting mechanism drives the driving motor to move to the highest point, a driving gear on a main shaft of the driving motor is meshed with the driven gear; when the lifting mechanism drives the driving motor to move to the lowest point, a driving gear on a main shaft of the driving motor is meshed with the transmission gear.
Preferably, the lifting mechanism comprises an electromagnet arranged on the motor fixing plate and used for driving the motor fixing plate to move vertically, wherein the driving motor is arranged on the motor fixing plate, the motor fixing plate is connected with a movable rod of the electromagnet, and the motor fixing plate is connected with a main body of the electromagnet through a compression spring; the upper end of the compression spring acts on the motor fixing plate, and the lower end of the compression spring acts on the main body of the electromagnet; the elastic force of the compression spring urges a driving gear on a main shaft of the driving motor to be meshed with the transmission gear.
Preferably, a guide mechanism is further arranged between the motor fixing plate and the support and comprises a guide rod arranged on the support and a guide hole arranged on the motor fixing plate and matched with the guide rod, a buffer spring is further arranged on the guide rod, the upper end of the compression spring acts on the motor fixing plate, and the lower end of the compression spring acts on the support.
Preferably, the guide mechanisms are in multiple groups, and the multiple groups of guide mechanisms are distributed around the motor fixing plate.
Preferably, the number of the inflator pumps is single or multiple, when the number of the inflator pumps is single, an automatic nozzle controller is arranged between the inflator pump and the sliding blocks of each horizontal adjusting module, an air inlet of the automatic nozzle controller is communicated with an air outlet of the inflator pump, a plurality of air outlets are arranged on the automatic nozzle controller, and the sliding block on each supporting rod is connected with one air outlet of the automatic nozzle controller through an air conveying pipeline; and the control end of the automatic nozzle controller is connected with the controller.
The utility model has the working principle that the measuring device for civil engineering construction has the following characteristics;
the during operation will the utility model discloses a measuring device places at work area, starts this measuring device, level sensor detects the levelness of this support to detect signal transmission and give the controller, the controller is through reading the processing level sensor's detected signal to judge this measuring device's levelness, and adjust the gas quantity in corresponding bracing piece motion and the inflatable packer through control vertical actuating mechanism and air feed mechanism work, with this adjust horizontal position with this measuring device. The specific process is as follows:
at first, the work of controller control vertical actuating mechanism to vertical motion is to the bracing piece that the drive corresponds, realizes the roughly regulation to the levelness of support with this, then, controller control air feed mechanism work to aerify to the inflatable packer of bracing piece bottom through gas transmission pipeline, detect as level sensor the utility model discloses a when measuring device is located the horizontality, controller control air feed mechanism stop work to the realization is to the fine setting of measuring device's levelness, can further improve like this measuring device's horizontal precision. In addition, owing to be provided with the inflatable packer in the bottom of bracing piece, consequently, work as the utility model discloses a measuring device works when rugged ground, through the gas volume in the inflatable packer of control bracing piece bottom, can wrap up subaerial arch and sunken well to guarantee measuring device's stationarity.
Compared with the prior art, the utility model following beneficial effect has:
1. the utility model discloses a measuring device adopts the mode of electrical control to replace traditional manual regulation's mode, and so not only labour saving and time saving, the precision is higher moreover.
2. The utility model discloses a measuring device is vertical motion through vertical actuating mechanism drive bracing piece earlier, realizes the preliminary regulation to this measuring device's levelness, then aerifys to inflatable packer through air feed mechanism, realizes the fine setting to this measuring device's levelness, just so can improve measuring device's levelness precision.
3. Because the utility model discloses a bottom of bracing piece among the measuring device is provided with the inflatable packer, consequently, works as the utility model discloses a measuring device works when rugged ground, and through the quantity of gas in the inflatable packer of control bracing piece bottom, subaerial arch and sunken can be wrapped up well to guarantee measuring device's stationarity.
Drawings
Fig. 1 is a schematic configuration diagram of a first embodiment of the measuring device for civil engineering construction according to the present invention.
Fig. 2 is a block flow diagram of the control system of fig. 1.
Fig. 3 is a schematic view of the lifting mechanism.
Fig. 4 is a schematic configuration diagram of a second embodiment of the measuring device for civil engineering work according to the present invention.
Fig. 5 is a block flow diagram of the control system of fig. 4.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
Referring to fig. 1-3, the utility model discloses a measuring device for civil engineering construction includes support 1, sets up measuring module 2 on support 1, is used for adjusting the leveling module 3 of measuring module 2's levelness and is used for controlling control module 4 of leveling module 3 work.
Referring to fig. 1-3, the number of the horizontal adjusting modules 3 is multiple, the horizontal adjusting modules 3 are distributed around the support 1, and each horizontal adjusting module 3 includes a support rod 3-1 and a vertical driving mechanism for driving the support rod 3-1 to move vertically.
Referring to fig. 1-3, the horizontal adjustment module 3 further includes a fine adjustment mechanism, the fine adjustment mechanism includes an inflatable cushion 3-2 disposed at a lower end of the support rod 3-1 and a gas supply mechanism for inflating the inflatable cushion 3-2, wherein the support rod 3-1 is a hollow shaft, an upper end of the support rod 3-1 is connected to the gas supply mechanism through a gas delivery pipe 3-3, and a lower end thereof is communicated with the inflatable cushion 3-2.
Referring to fig. 3, the control module 4 comprises a level sensor 4-1 arranged on the support 1, and a controller 4-2 for receiving a detection signal of the level sensor 4-1 to control the operation of the vertical driving mechanism and the air supply mechanism, wherein the level sensor 4-1 is used for detecting the levelness of the support 1, and an output end of the level sensor 4-1 is connected with the controller 4-2; the controller 4-2 controls the air supply mechanism and the vertical driving mechanism in the corresponding horizontal adjusting module 3 to work by processing the detection signal of the horizontal sensor 4-1 so as to adjust the levelness of the support 1.
Referring to fig. 1-3, the vertical driving mechanism includes a screw rod transmission mechanism and a rotating mechanism for driving a screw rod nut 3-4 in the screw rod transmission mechanism to rotate, wherein the screw rod nut 3-4 is sleeved on the support rod 3-1 and is rotatably connected to the support 1; the outer surface of the support rod 3-1 is provided with an external thread 3-5 matched with the internal thread of the screw rod nut 3-4, and the support rod 3-1 forms a screw rod in the screw rod transmission mechanism. The lead screw nut 3-4 is driven to rotate through the rotary driving mechanism, so that the support rod 3-1 is driven to vertically move.
Referring to fig. 1-3, the rotating mechanism includes a driving motor 3-6 and a transmission mechanism, the transmission mechanism includes a driving gear 3-7 and a driven gear engaged with the driving gear 3-7, wherein the driving gear 3-7 is mounted on a main shaft of the driving motor 3-6, engaging teeth 3-8 engaged with teeth of the driving gear 3-7 are provided on an outer surface of the lead screw nut 3-4, and the lead screw nut 3-4 constitutes the driven gear.
Referring to fig. 1-3, the gas supply mechanism comprises an inflator pump 3-9 and a slider 3-10 arranged inside the support rod 3-1, wherein the inflator pump 3-9 is connected with the slider 3-10 through a gas transmission pipeline 3-2, and a sealing ring is arranged between the outer surface of the slider 3-10 and the inner cavity of the support rod 3-1. When the vertical driving mechanism drives the supporting rod 3-1 to move vertically, the sliding block 3-10 and the supporting rod 3-1 can move relatively, so that the fine adjustment mechanism and the supporting rod 3-1 do not interfere with each other in the vertical movement. And because the sealing ring is arranged between the outer surface of the sliding block 3-10 and the inner surface of the supporting rod 3-1, the gas leakage between the supporting rod 3-1 and the sliding block 3-10 can be prevented.
Referring to fig. 1-3, the level sensor 4-1 may be an electronic level.
Referring to fig. 1-3, the vertical driving mechanism further includes a lifting mechanism 5 disposed on the support 1 and used for driving the driving motor 3-6 to vertically move, wherein a power input shaft of the inflator pump 3-9 is provided with a transmission gear 3-11, and when the lifting mechanism 5 drives the driving motor 3-6 to move to a highest point, a driving gear 3-7 on a main shaft of the driving motor 3-6 is engaged with the driven gear; when the lifting mechanism 5 drives the driving motor 3-6 to move to the lowest point, the driving gear 3-7 on the main shaft of the driving motor 3-6 is meshed with the transmission gear 3-11.
Referring to fig. 1-3, the lifting mechanism 5 includes an electromagnet 5-2 disposed on the motor fixing plate 5-1 and used for vertical movement of the motor fixing plate 5-1, wherein the driving motor 3-6 is mounted on the motor fixing plate 5-1, the motor fixing plate 5-1 is connected with a movable rod of the electromagnet 5-2, and the motor fixing plate 5-1 is connected with a main body of the electromagnet 5-2 through a compression spring 5-3; the upper end of the compression spring 5-3 acts on the motor fixing plate 5-1, and the lower end acts on the main body of the electromagnet 5-2; the elastic force of the compression spring 5-3 urges the driving gear 3-7 on the main shaft of the driving motor 3-6 to engage with the transmission gear 3-11. When the electromagnet 5-2 is electrified, the movable rod moves downwards, so that a driving gear 3-7 on a main shaft of the driving motor 3-6 is matched with a transmission gear 3-11, and the inflator pump 3-9 is driven to work. When the electromagnet 5-2 is powered off, the movable rod moves upwards under the action of the elastic force of the compression spring 5-3, so that the driving gear 3-7 on the main shaft of the driving motor 3-6 is matched with the driven gear, and the supporting rod 3-1 is driven to move vertically.
Referring to fig. 1-3, a plurality of groups of guide mechanisms 5-4 are further arranged between the motor fixing plate 5-1 and the support 1, and the plurality of groups of guide mechanisms 5-4 are distributed around the motor fixing plate 5-1; each group of guide mechanisms 5-4 comprises a guide rod arranged on the support 1 and a guide hole arranged on the motor fixing plate 1 and matched with the guide rod, wherein the guide rod is also provided with a buffer spring 5-5, the upper end of the compression spring 5-3 acts on the motor fixing plate 5-1, and the lower end of the compression spring acts on the support 1. The vertical movement of the motor fixing plate 5-1 can be guided by arranging the guide mechanism 5-4. And because the guide rods are provided with the buffer springs 5-5, the buffer springs 5-5 can provide supporting force for the motor fixing plate 5-1 in the process that the driving motor 3-6 drives the driven gear to rotate, so that the driving gear 3-7 on the main shaft of the driving motor 3-6 is matched with the driven gear. In addition, the buffer springs 5-5 can also absorb the vibration generated when the driving motors 3-6 work, thereby further ensuring the adjustment precision.
The number of the inflation pumps 3-9 is multiple in the embodiment, and each group of the horizontal adjusting modules 3 is provided with one inflation pump 3-9 for controlling the gas amount of the inflation cushion 3-2 at the bottom of the corresponding support rod 3-1.
Furthermore, the utility model provides a controller can adopt the conventional control module on the market, for example singlechip.
Referring to fig. 1-3, the working principle of the measuring device for civil engineering construction of the present invention is;
the during operation will the utility model discloses a measuring device places at work area, starts this measuring device, level sensor 4-1 detects this support 1's levelness to with detect signal transmission for controller 4-2, controller 4-2 is through reading the processing level sensor 4-1's detection signal, thereby judges this measuring device's levelness, and adjusts the gas volume in corresponding bracing piece 3-1 motion and the inflatable packer 3-2 through controlling vertical actuating mechanism and air feed mechanism work, adjusts horizontal position with this measuring device. The specific process is as follows: firstly, controller 4-2 control vertical actuating mechanism work to the vertical motion is done to the bracing piece 3-1 that the drive corresponds, realizes the approximate regulation to the levelness of support 1 with this, then, controller 4-2 control air feed mechanism work to aerify through the gas transmission pipeline to the inflatable packer 3-2 of bracing piece 3-1 bottom, when level sensor 4-1 detects the utility model discloses a measuring device is located the horizontality, controller 4-2 control air feed mechanism stop work, thereby realizes the fine setting to measuring device's levelness, can further improve like this measuring device's horizontal precision. In addition, because the bottom of the supporting rod 3-1 is provided with the inflatable cushion 3-2, when the measuring device of the utility model works on rugged ground, the bulges and the depressions on the ground can be well wrapped by controlling the amount of gas in the inflatable cushion 3-2 at the bottom of the supporting rod 3-1, thereby ensuring the stability of the measuring device.
Example 2
Referring to fig. 4-5, the present embodiment is different from embodiment 1 in that the inflator 3-9 is a single one, an automatic nozzle controller 4-3 is disposed between the inflator 3-9 and the sliding blocks 3-10 of each horizontal adjustment module 3, the automatic nozzle controller 4-3 is provided with a plurality of air outlets, and the sliding block 3-10 on each support rod 3-1 is connected to one of the air outlets of the automatic nozzle controller 4-3 through a pipeline; the control end of the automatic nozzle controller 4-3 is connected with the controller 4-2. Thus, the levelness of the measuring device of the utility model can be adjusted by controlling the aeration quantity of the aeration cushion 3-2 at the bottom of the different support rods 3-1.
The automatic nozzle controller 4-3 in this embodiment may be implemented by referring to the automatic nozzle controller in "a landing platform for reducing the flying dust during the landing of an unmanned aerial vehicle" of application publication No. CN 107128503 a.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The measuring device for civil engineering construction is characterized by comprising a support, a measuring module arranged on the support, a horizontal adjusting module used for adjusting the levelness of the measuring module and a control module used for controlling the horizontal adjusting module to work, wherein,
the horizontal adjusting modules are distributed around the support, and each horizontal adjusting module comprises a supporting rod and a vertical driving mechanism for driving the supporting rod to do vertical motion;
the horizontal adjusting module also comprises a fine adjusting mechanism, the fine adjusting mechanism comprises an inflatable cushion arranged at the lower end of the supporting rod and a gas supply mechanism used for inflating the inflatable cushion, wherein the supporting rod is a hollow shaft, the upper end of the supporting rod is connected with the gas supply mechanism through a gas conveying pipeline, and the lower end of the supporting rod is communicated with the inflatable cushion;
the control module comprises a horizontal sensor arranged on the support and a controller used for receiving a detection signal of the horizontal sensor to control the vertical driving mechanism and the air supply mechanism to work, wherein the horizontal sensor is used for detecting the levelness of the support, and the output end of the horizontal sensor is connected with the controller; the controller receives and processes the detection signal of the horizontal sensor to control the air supply mechanism and the vertical driving mechanism in the corresponding horizontal adjusting module to work so as to adjust the levelness of the support.
2. The measuring device for civil engineering construction according to claim 1, wherein the vertical driving mechanism comprises a screw transmission mechanism and a rotating mechanism for driving a screw nut in the screw transmission mechanism to rotate, wherein the screw nut is sleeved on the support rod and is rotatably connected to the support; and the outer surface of the support rod is provided with an external thread matched with the internal thread of the screw rod nut, and the support rod forms a screw rod in the screw rod transmission mechanism.
3. The measuring apparatus for civil engineering construction according to claim 2, wherein the rotating mechanism includes a driving motor and a transmission mechanism including a driving gear and a driven gear that meshes with the driving gear, wherein the driving gear is mounted on a main shaft of the driving motor, and an outer surface of the lead screw nut is provided with engaging teeth that mesh with teeth of the driving gear, the lead screw nut constituting the driven gear.
4. The measuring device for civil engineering construction according to claim 3, wherein the gas supply mechanism comprises an inflator pump and a slider arranged inside the support rod and matched with the inner cavity of the support rod, wherein the inflator pump is connected with the slider through a gas transmission pipeline, the lower end of the slider is provided with a gas outlet, and a sealing ring is arranged between the outer surface of the slider and the inner cavity of the support rod.
5. The measuring apparatus for civil engineering construction according to claim 4, wherein the level sensor may employ an electronic level meter.
6. The measuring device for civil engineering construction according to claim 5, wherein the vertical driving mechanism further comprises a lifting mechanism provided on the support for driving the driving motor to move vertically, wherein a transmission gear is provided on the power input shaft of the inflator, and when the lifting mechanism drives the driving motor to move to the highest point, a driving gear on a main shaft of the driving motor is engaged with the driven gear; when the lifting mechanism drives the driving motor to move to the lowest point, a driving gear on a main shaft of the driving motor is meshed with the transmission gear.
7. The measuring device for civil engineering construction according to claim 6, wherein the elevating mechanism comprises a motor fixing plate and an electromagnet for driving the motor fixing plate to move vertically, wherein the driving motor is mounted on the motor fixing plate, the motor fixing plate is connected with the movable rod of the electromagnet, and the motor fixing plate is connected with the main body of the electromagnet through a compression spring; the upper end of the compression spring acts on the motor fixing plate, and the lower end of the compression spring acts on the main body of the electromagnet; the elastic force of the compression spring urges a driving gear on a main shaft of the driving motor to be meshed with the transmission gear.
8. The measuring device for civil engineering construction according to claim 7, wherein a guide mechanism is further provided between the motor fixing plate and the support, the guide mechanism includes a guide rod provided on the support and a guide hole provided on the motor fixing plate and engaged with the guide rod, wherein a buffer spring is further provided on the guide rod, an upper end of the compression spring acts on the motor fixing plate, and a lower end of the compression spring acts on the support.
9. The measuring device for civil engineering construction according to claim 8, wherein the guide mechanism is provided in a plurality of sets, and the plurality of sets of guide mechanisms are distributed around the motor fixing plate.
10. The measuring device for civil engineering construction according to claim 4, wherein the inflator is single or plural, when the inflator is single, an automatic nozzle controller is provided between the inflator and the slide block of each level adjustment module, an air inlet of the automatic nozzle controller is communicated with an air outlet of the inflator, the automatic nozzle controller is provided with a plurality of air outlets, the slide block on each support rod is respectively connected with one of the air outlets of the automatic nozzle controller through a gas conveying pipeline; and the control end of the automatic nozzle controller is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280013.XU CN211717411U (en) | 2020-03-09 | 2020-03-09 | Measuring device is used in civil engineering construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280013.XU CN211717411U (en) | 2020-03-09 | 2020-03-09 | Measuring device is used in civil engineering construction |
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| CN211717411U true CN211717411U (en) | 2020-10-20 |
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| CN202020280013.XU Expired - Fee Related CN211717411U (en) | 2020-03-09 | 2020-03-09 | Measuring device is used in civil engineering construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376944A (en) * | 2020-11-13 | 2021-02-19 | 株洲天桥舜臣选煤机械有限责任公司 | Temporary support for pre-splicing steel structural member |
| CN113391296A (en) * | 2021-08-02 | 2021-09-14 | 陈时 | Laser radar mapping equipment and damping assembly thereof |
-
2020
- 2020-03-09 CN CN202020280013.XU patent/CN211717411U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376944A (en) * | 2020-11-13 | 2021-02-19 | 株洲天桥舜臣选煤机械有限责任公司 | Temporary support for pre-splicing steel structural member |
| CN112376944B (en) * | 2020-11-13 | 2022-08-16 | 青岛嘉和鑫钢铁有限公司 | Temporary support for pre-splicing steel structural member |
| CN113391296A (en) * | 2021-08-02 | 2021-09-14 | 陈时 | Laser radar mapping equipment and damping assembly thereof |
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Granted publication date: 20201020 Termination date: 20210309 |