CN214374024U - Civil engineering material sample detection device - Google Patents
Civil engineering material sample detection device Download PDFInfo
- Publication number
- CN214374024U CN214374024U CN202120312282.4U CN202120312282U CN214374024U CN 214374024 U CN214374024 U CN 214374024U CN 202120312282 U CN202120312282 U CN 202120312282U CN 214374024 U CN214374024 U CN 214374024U
- Authority
- CN
- China
- Prior art keywords
- supporting box
- bottom plate
- moving block
- civil engineering
- support
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims abstract description 33
- 230000008093 supporting effect Effects 0.000 claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims description 11
- 230000003028 elevating effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a civil engineering material sample detection device. Civil engineering material sample detection device includes: the lifting mechanism comprises a bottom plate, a first lifting mechanism, a second lifting mechanism and a transverse moving mechanism; the first lifting mechanism is arranged on the bottom plate and comprises a first supporting box and a hydraulic rod, the first supporting box is fixedly arranged on the bottom plate, and a first motor is fixedly arranged at the top end of the first supporting box. The utility model provides a civil engineering material sample detection device is through setting up first elevating system for detect the piece and can go up and down fast, set up second elevating system, make the loading board can go up and down fast, set up sideslip mechanism, make the loading board can carry out quick sideslip, make this device can satisfy not equidimension detected sample to a certain extent, simultaneously, make the easy operation of this device, convenient to use has improved staff's work efficiency to a certain extent.
Description
Technical Field
The utility model relates to a civil engineering technical field especially relates to a civil engineering material sample detection device.
Background
Civil engineering is a general term of scientific technology for building various land engineering facilities, which refers to applied materials, equipment, technical activities such as surveying, designing, constructing, maintaining and repairing and the like, and also refers to objects of engineering construction, namely various engineering facilities such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, harbors, power stations, airports, ocean platforms, water supply and drainage, protection engineering and the like which are built on the ground, underground or on land and directly or indirectly serve human life, production, military and scientific research, in the practice of civil engineering, the civil engineering material detection technology is a new technology and relates to many aspects, excellent engineering materials cannot be separated in the engineering practice process, but the development of high-quality engineering materials must rely on excellent detection devices, the preparation of the civil engineering materials and the quality of the materials directly influence the quality of the engineering, engineering materials with high physical, chemical and mechanical properties have become an indispensable factor in the development of the civil engineering field.
The building material of civil engineering can be used for construction only through quality detection, and the current civil engineering material sample detection device, most operation is troublesome, uses the operation inconvenience, can not adjust according to the size of detecting the sample, has reduced work efficiency.
Therefore, there is a need to provide a civil engineering material sample detection device to solve the above technical problems.
Disclosure of Invention
The utility model provides a technical problem provide a civil engineering material sample detection device.
In order to solve the technical problem, the utility model provides a civil engineering material sample detection device, include: the lifting mechanism comprises a bottom plate, a first lifting mechanism, a second lifting mechanism and a transverse moving mechanism; the first lifting mechanism is arranged on the bottom plate and comprises a first supporting box and a hydraulic rod, the first supporting box is fixedly arranged on the bottom plate, the top end of the first supporting box is fixedly provided with a first motor, a first screw rod and a first moving block are arranged in the first supporting box, the first screw rod extends out of the first supporting box and is rotationally connected with the first supporting box, the top end of the first screw rod is fixedly connected with the output end of the first motor, the first moving block extends out of the first supporting box and is connected with the first supporting box in a sliding way, the first lead screw penetrates through the first moving block and is in threaded connection with the first moving block, the hydraulic rod is fixedly arranged on the first moving block, the output end of the hydraulic rod is fixedly provided with a pressure sensor, and one side of the pressure sensor is fixedly provided with a detection block; the second lifting mechanism is arranged on the bottom plate and comprises a second supporting box, the second supporting box is arranged on the bottom plate and is in sliding connection with the bottom plate, a second motor is fixedly arranged at the top end of the second supporting box, a second lead screw and a second moving block are arranged in the second supporting box, the second lead screw extends out of the second supporting box and is in rotating connection with the second supporting box, the top end of the second lead screw is fixedly connected with the output end of the second motor, the second moving block extends out of the second supporting box and is in sliding connection with the second supporting box, the second lead screw penetrates through the second moving block and is in threaded connection with the second moving block, and a bearing plate is fixedly arranged on the second moving block; the sideslip mechanism is located on the bottom plate, the sideslip mechanism includes installation cavity and third motor, the installation cavity is seted up in on the bottom plate, be equipped with third lead screw, axis of rotation and two stoppers in the installation cavity, the third lead screw with the bottom plate rotates to be connected, fixed mounting has first bevel gear on the third lead screw, third motor fixed mounting be in the bottom of bottom plate, the axis of rotation extends to the outer one end of bottom plate with the output fixed connection of third motor, fixed mounting has second bevel gear in the axis of rotation, second bevel gear with first bevel gear meshes mutually, two the stopper all extends to outside the bottom plate and with second support box fixed connection, the third lead screw runs through two the stopper and with two stopper threaded connection.
Preferably, be equipped with two auxiliary stay mechanisms on the second support box, auxiliary stay mechanism includes bracing piece and T type piece, the bracing piece top with second support box fixed connection, T type groove has been seted up on the bottom plate, T type piece is located T type inslot and with T type groove sliding connection, the screw is installed to bracing piece bottom end screw thread, the screw extend to in the T type piece and with T type piece threaded connection.
Preferably, four supporting legs are fixedly mounted at the bottom of the bottom plate and distributed in a rectangular array.
Preferably, a supporting plate is fixedly installed in the installation cavity, and the third screw rod penetrates through the supporting plate and is rotatably connected with the supporting plate.
Preferably, a first sliding groove is formed in the first support box, and the first moving block is connected with the first sliding groove in a sliding manner.
Preferably, a second sliding groove is formed in the second support box, and the second moving block is connected with the second sliding groove in a sliding manner.
Compared with the prior art, the utility model provides a civil engineering material sample detection device has following beneficial effect:
(1) through setting up first elevating system for detect the piece and can go up and down fast, set up second elevating system, make the loading board can go up and down fast, set up sideslip mechanism, make the loading board can carry out quick sideslip, make this device can satisfy not the not detected sample of equidimension to a certain extent, simultaneously, make the easy operation of this device, convenient to use has improved staff's work efficiency to a certain extent.
(2) Through setting up supplementary supporting mechanism for this device is being detected more stable when sample, has improved the detection accuracy who is detected the sample to a certain extent.
(3) The supporting plate is arranged, so that the fixing and supporting effect on the third screw rod is achieved, and meanwhile, the third screw rod can rotate more smoothly and quickly.
Drawings
FIG. 1 is a schematic front view of a civil engineering material sample detection device according to the present invention;
FIG. 2 is a schematic front sectional view of the civil engineering material sample detection apparatus provided by the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic side view of the civil engineering material sample inspection device provided by the present invention;
fig. 5 is an enlarged view of a portion B in fig. 4.
Reference numbers in the figures: 1. the device comprises a base plate, 2, a first supporting box, 3, a hydraulic rod, 4, a first motor, 5, a first lead screw, 6, a first moving block, 7, a pressure sensor, 8, a detecting block, 9, a second supporting box, 10, a second motor, 11, a second lead screw, 12, a second moving block, 13, a bearing plate, 14, an installation cavity, 15, a third motor, 16, a third lead screw, 17, a rotating shaft, 18, a limiting block, 19, a first bevel gear, 20, a second bevel gear, 21, a supporting rod, 22, a T-shaped block, 23, a T-shaped groove, 24, a screw, 25, a supporting leg, 26, a supporting plate, 27, a first sliding groove, 28 and a second sliding groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic front view of a civil engineering material sample detection device according to the present invention; FIG. 2 is a schematic front sectional view of the civil engineering material sample detection apparatus provided by the present invention; FIG. 3 is an enlarged view of portion A of FIG. 2; FIG. 4 is a schematic side view of the civil engineering material sample inspection device provided by the present invention; fig. 5 is an enlarged view of portion B in fig. 4, and in an embodiment of the present invention, the civil engineering material sample detection device includes: the device comprises a bottom plate 1, a first lifting mechanism, a second lifting mechanism and a transverse moving mechanism; the first lifting mechanism is arranged on the bottom plate 1, the first lifting mechanism comprises a first supporting box 2 and a hydraulic rod 3, the first supporting box 2 is fixedly arranged on the bottom plate 1, a first motor 4 is fixedly arranged at the top end of the first supporting box 2, a first lead screw 5 and a first moving block 6 are arranged in the first supporting box 2, the first lead screw 5 extends out of the first supporting box 2 and is rotatably connected with the first supporting box 2, the top end of the first lead screw 5 is fixedly connected with the output end of the first motor 4, the first moving block 6 extends out of the first supporting box 2 and is slidably connected with the first supporting box 2, the first lead screw 5 penetrates through the first moving block 6 and is in threaded connection with the first moving block 6, the hydraulic rod 3 is fixedly arranged on the first moving block 6, and a pressure sensor 7 is fixedly arranged at the output end of the hydraulic rod 3, a detection block 8 is fixedly arranged on one side of the pressure sensor 7; the second lifting mechanism is arranged on the bottom plate 1, the second lifting mechanism comprises a second supporting box 9, the second supporting box 9 is arranged on the bottom plate 1 and is connected with the bottom plate 1 in a sliding manner, a second motor 10 is fixedly arranged at the top end of the second supporting box 9, a second lead screw 11 and a second moving block 12 are arranged in the second supporting box 9, the second lead screw 11 extends out of the second supporting box 9 and is connected with the second supporting box 9 in a rotating manner, the top end of the second lead screw 11 is fixedly connected with the output end of the second motor 10, the second moving block 12 extends out of the second supporting box 9 and is connected with the second supporting box 9 in a sliding manner, the second lead screw 11 penetrates through the second moving block 12 and is connected with the second moving block 12 in a threaded manner, and a bearing plate 13 is fixedly arranged on the second moving block 12; the transverse moving mechanism is arranged on the bottom plate 1 and comprises an installation cavity 14 and a third motor 15, the mounting cavity 14 is arranged on the bottom plate 1, a third screw rod 16, a rotating shaft 17 and two limiting blocks 18 are arranged in the mounting cavity 14, the third screw rod 16 is rotatably connected with the bottom plate 1, a first bevel gear 19 is fixedly arranged on the third screw rod 16, the third motor 15 is fixedly arranged at the bottom of the bottom plate 1, one end of the rotating shaft 17 extending out of the bottom plate 1 is fixedly connected with the output end of the third motor 15, a second bevel gear 20 is fixedly installed on the rotating shaft 17, the second bevel gear 20 is meshed with the first bevel gear 19, both the two limiting blocks 18 extend out of the bottom plate 1 and are fixedly connected with the second supporting box 9, the third screw rod 16 penetrates through the two limiting blocks 18 and is in threaded connection with the two limiting blocks 18.
Through setting up first elevating system for detect piece 8 can go up and down fast, set up second elevating system, make loading board 13 can go up and down fast, set up sideslip mechanism, make loading board 13 can carry out quick sideslip, make this device can satisfy not the not detected sample of equidimension to a certain extent, simultaneously, make the easy operation of this device, convenient to use has improved staff's work efficiency to a certain extent.
The second supports and is equipped with two auxiliary stay mechanisms on the box 9, auxiliary stay mechanism includes bracing piece 21 and T type piece 22, 21 tops of bracing piece with the second supports 9 fixed connection of box, T type groove 23 has been seted up on the bottom plate 1, T type piece 22 is located in T type groove 23 and with T type groove 23 sliding connection, screw 24 is installed to 21 bottom screw threads of bracing piece, screw 24 extend to in the T type piece 22 and with T type piece 22 threaded connection.
Through setting up supplementary supporting mechanism for this device is being detected more stable when the sample detects, has improved the detection accuracy who is detected the sample to a certain extent.
Four supporting legs 25 are fixedly mounted at the bottom of the bottom plate 1, and the supporting legs 25 are distributed in a rectangular array.
By arranging the supporting legs 25, the device is more stable and firm.
A support plate 26 is fixedly installed in the installation cavity 14, and the third screw 16 penetrates through the support plate 26 and is rotatably connected with the support plate 26.
Through setting up backup pad 26, realized the fixed stay effect to third lead screw 16 for third lead screw 16's rotation is more smooth and easy quick.
A first sliding groove 27 is formed in the first supporting box 2, and the first moving block 6 is slidably connected with the first sliding groove 27.
Through setting up first spout 27, realized spacing to first movable block 6 for simultaneously, make the removal of first movable block 6 more smooth and easy quick.
A second sliding groove 28 is formed in the second supporting box 9, and the second moving block 12 is slidably connected to the second sliding groove 28.
Through the arrangement of the second sliding groove 28, the second moving block 12 is limited, and meanwhile, the second moving block 12 can move more smoothly and quickly.
The utility model provides a civil engineering material sample detection device's theory of operation as follows:
firstly, a display screen is arranged beside the device, a pressure sensor 7 is connected with the display screen, a detected sample is placed on a bearing plate 13, when the height of a detection block 8 needs to be adjusted, a first motor 4 is started, the first motor 4 works to drive a first lead screw 5 to rotate, the first lead screw 5 rotates to drive a first moving block 6 to move, the first moving block 6 moves to drive a hydraulic rod 3 to move, the hydraulic rod 3 moves to drive the pressure sensor 7 to move, the pressure sensor 7 moves to drive the detection block 8 to move, and when the detection block 8 moves to the required height, the first motor 4 is turned off;
when the height of the detected sample needs to be adjusted, a second motor 10 is started, the second motor 10 works to drive a second lead screw 11 to rotate, the second lead screw 11 rotates to drive a second movable block 12 to move, the second movable block 12 moves to drive a bearing plate 13 to move, the bearing plate 13 moves to drive the detected sample to move, and when the detected sample moves to the required height, the second motor 10 is turned off;
when the second supporting box 9 needs to move transversely, the two screws 24 are unscrewed, after the two screws 24 are unscrewed, the third motor 15 is started, the third motor 15 starts to work to drive the rotating shaft 17 to rotate, the rotating shaft 17 rotates to drive the second bevel gear 20 to rotate, the second bevel gear 20 rotates to drive the first bevel gear 19 to rotate, the first bevel gear 19 rotates to drive the third screw rod 16 to rotate, the third screw rod 16 rotates to drive the two limiting blocks 18 to move, the two limiting blocks 18 move to drive the second supporting box 9 to move, and after the second supporting box 9 moves to a needed position, the third motor 15 is closed, and the two screws 24 are screwed;
when this device adjustment is accomplished and need be examined by the sample, start hydraulic stem 3, hydraulic stem 3 drives and detects piece 8 and detect by the sample, and simultaneously, pressure sensor 7 will be detected on the pressure value of sample transmits the display screen, and the staff can judge material hardness through the impaired degree of looking over pressure value and contrast material, easy operation, and convenient to use has improved work efficiency.
It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and on the premise that the skilled person understands the principle of the present invention, the details of the power mechanism, the power supply system, and the control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the skilled person in the art;
the standard parts used in the method can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt conventional models in the prior art, and the structure and the principle of the parts known by the skilled person can be known by technical manuals or conventional experimental methods.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. A civil engineering material sample detection device, characterized by, includes:
the lifting mechanism comprises a bottom plate, a first lifting mechanism, a second lifting mechanism and a transverse moving mechanism;
the first lifting mechanism is arranged on the bottom plate and comprises a first supporting box and a hydraulic rod, the first supporting box is fixedly arranged on the bottom plate, the top end of the first supporting box is fixedly provided with a first motor, a first screw rod and a first moving block are arranged in the first supporting box, the first screw rod extends out of the first supporting box and is rotationally connected with the first supporting box, the top end of the first screw rod is fixedly connected with the output end of the first motor, the first moving block extends out of the first supporting box and is connected with the first supporting box in a sliding way, the first lead screw penetrates through the first moving block and is in threaded connection with the first moving block, the hydraulic rod is fixedly arranged on the first moving block, the output end of the hydraulic rod is fixedly provided with a pressure sensor, and one side of the pressure sensor is fixedly provided with a detection block;
the second lifting mechanism is arranged on the bottom plate and comprises a second supporting box, the second supporting box is arranged on the bottom plate and is in sliding connection with the bottom plate, a second motor is fixedly arranged at the top end of the second supporting box, a second lead screw and a second moving block are arranged in the second supporting box, the second lead screw extends out of the second supporting box and is in rotating connection with the second supporting box, the top end of the second lead screw is fixedly connected with the output end of the second motor, the second moving block extends out of the second supporting box and is in sliding connection with the second supporting box, the second lead screw penetrates through the second moving block and is in threaded connection with the second moving block, and a bearing plate is fixedly arranged on the second moving block;
the sideslip mechanism is located on the bottom plate, the sideslip mechanism includes installation cavity and third motor, the installation cavity is seted up in on the bottom plate, be equipped with third lead screw, axis of rotation and two stoppers in the installation cavity, the third lead screw with the bottom plate rotates to be connected, fixed mounting has first bevel gear on the third lead screw, third motor fixed mounting be in the bottom of bottom plate, the axis of rotation extends to the outer one end of bottom plate with the output fixed connection of third motor, fixed mounting has second bevel gear in the axis of rotation, second bevel gear with first bevel gear meshes mutually, two the stopper all extends to outside the bottom plate and with second support box fixed connection, the third lead screw runs through two the stopper and with two stopper threaded connection.
2. The civil engineering material sample detection device of claim 1, wherein two auxiliary support mechanisms are arranged on the second support box, each auxiliary support mechanism comprises a support rod and a T-shaped block, the top end of the support rod is fixedly connected with the second support box, a T-shaped groove is formed in the bottom plate, the T-shaped block is arranged in the T-shaped groove and is in sliding connection with the T-shaped groove, a screw is installed at the bottom end of the support rod in a threaded mode, and the screw extends into the T-shaped block and is in threaded connection with the T-shaped block.
3. The civil engineering material sample detection device of claim 1, wherein four support legs are fixedly mounted at the bottom of the bottom plate, and the four support legs are distributed in a rectangular array.
4. The civil engineering material sample detection device of claim 1, wherein a support plate is fixedly installed in the installation cavity, and the third screw penetrates through the support plate and is rotatably connected with the support plate.
5. The civil engineering material sample detection device of claim 1, wherein the first support box is provided with a first slide groove, and the first moving block is slidably connected to the first slide groove.
6. The civil engineering material sample detection device of claim 1, wherein the second support box is provided with a second slide groove, and the second moving block is slidably connected to the second slide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312282.4U CN214374024U (en) | 2021-02-04 | 2021-02-04 | Civil engineering material sample detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312282.4U CN214374024U (en) | 2021-02-04 | 2021-02-04 | Civil engineering material sample detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214374024U true CN214374024U (en) | 2021-10-08 |
Family
ID=77963713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120312282.4U Expired - Fee Related CN214374024U (en) | 2021-02-04 | 2021-02-04 | Civil engineering material sample detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214374024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161249A (en) * | 2021-12-17 | 2022-03-11 | 江苏盛恒液压机械有限公司 | Inner diameter deburring device for machining hydraulic pipeline connecting piece and machining method |
-
2021
- 2021-02-04 CN CN202120312282.4U patent/CN214374024U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161249A (en) * | 2021-12-17 | 2022-03-11 | 江苏盛恒液压机械有限公司 | Inner diameter deburring device for machining hydraulic pipeline connecting piece and machining method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208171386U (en) | Convenient for the water level monitoring device for adjusting and overhauling | |
| CN210777077U (en) | Geological disaster monitoring and early warning device | |
| CN214374024U (en) | Civil engineering material sample detection device | |
| CN216046373U (en) | Dedicated multifunctional support of hydrology monitoring instrument | |
| CN220508172U (en) | Water conservancy surveys fluviograph | |
| CN212482334U (en) | Measuring apparatu for construction | |
| CN220416887U (en) | Dam subsides detection device | |
| CN109898477A (en) | A kind of construction of hydro project intelligence water-proof drainage device | |
| CN218766364U (en) | Dykes and dams intensity detection device for hydraulic engineering detects | |
| CN214621342U (en) | Supporting device capable of preventing rainwater permeation for water conservancy and hydrology flow monitor | |
| CN110296881A (en) | A kind of soil model pilot system and method suitable for geotechnical slope, roadbed embankment | |
| CN211477832U (en) | A concrete reinforcing bar detector for building quality supervise | |
| CN219414351U (en) | Water conservancy water and electricity construction is with installation formula support | |
| CN218758638U (en) | Civil engineering is with adjustable bearing stores pylon | |
| CN218238817U (en) | Gradient detection device for water conservancy gate installation | |
| CN110700628A (en) | Steel bearing structure that stability is high | |
| CN206626273U (en) | A kind of city piping lane construction supporting mechanism | |
| CN220980770U (en) | Measuring device for water level detection of hydraulic engineering | |
| CN218121042U (en) | River water level flow monitor | |
| CN219828715U (en) | Hydraulic and hydroelectric engineering construction equipment | |
| CN216887901U (en) | Pipe fitting placer for building civil engineering | |
| CN216667149U (en) | Level gauge convenient to place field uneven ground | |
| CN216557030U (en) | Construction lighting device that hydraulic engineering conveniently carries out scope and adjusts | |
| CN218121095U (en) | Water level early warning device | |
| CN217815772U (en) | Road and bridge concrete structural engineering real-time detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |