CN112197683A - Bridge beam supports warp automatic check out system - Google Patents
Bridge beam supports warp automatic check out system Download PDFInfo
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- CN112197683A CN112197683A CN202011357541.1A CN202011357541A CN112197683A CN 112197683 A CN112197683 A CN 112197683A CN 202011357541 A CN202011357541 A CN 202011357541A CN 112197683 A CN112197683 A CN 112197683A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
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Abstract
The invention discloses an automatic detection system for bridge bearing deformation, which comprises a bridge bearing body and pressing plates, wherein the pressing plates are fixedly connected to the upper outer wall and the lower outer wall of the bridge bearing body, and a detection device is arranged between the upper pressing plate and the lower pressing plate. This bridge beam supports warp automatic check out system, through the clamp plate, mutually support between bridge beam supports body and the index isotructure, the bridge beam supports body can drive the first riser downstream through splint and first diaphragm etc. of top, thereby make the scale position that the index aligns on to the first riser change, and then can reachd the deformation volume of bridge beam supports body fast, through the third riser, the sleeve, the index, mutually support between second spring and the second montant isotructure, can make the sleeve drive the third diaphragm and remove, the third diaphragm drives first L shaped plate and index and removes, first L shaped plate drives the second montant and stretches out and draws back, thereby made things convenient for and adjusted the index.
Description
Technical Field
The invention relates to the technical field of bridge detection equipment, in particular to an automatic detection system for bridge support deformation.
Background
The bridge bearing is an important structural component for connecting an upper structure and a lower structure of a bridge, and can reliably transmit the counter force and the deformation (displacement and corner) of the upper structure of the bridge to the lower structure of the bridge, so that the actual stress condition of the structure is consistent with a calculated theoretical diagram, anti-seismic measures are considered in an earthquake area, the bridge bearing needs to be regularly detected, and the deformation degree of the bridge bearing is determined.
Disclosure of Invention
The invention aims to provide an automatic detection system for bridge support deformation, which aims to solve the problem that most of the prior art is manually detected through a measuring ruler and the like, so that the labor degree is increased.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic detection system for bridge support deformation comprises a bridge support body and pressing plates, wherein the pressing plates are fixedly connected to the upper outer wall and the lower outer wall of the bridge support body, and a detection device is arranged between the upper pressing plate and the lower pressing plate;
the detection device comprises a first transverse plate, a first vertical plate, a second transverse plate, a second vertical plate and a first spring;
the upper surface of first diaphragm links to each other with the below outer wall of the clamp plate of top is fixed, the lower surface rigid coupling of first diaphragm has the first riser, the preceding terminal surface outer wall processing of first riser has the scale, the lower surface rigid coupling of first riser has the second diaphragm, the second riser is all installed to the left and right sides outer wall of second diaphragm, controls the inboard processing of second riser has the spout, the spout department inner wall of second riser and the outer wall clearance fit of second diaphragm, the lower surface of second riser links to each other with the clamp plate of below is fixed, the left side the top of second riser is processed recess and through-hole respectively, a plurality of first springs are installed to the below of second diaphragm, controls the upper and lower side outer wall of first spring links to each other with the clamp plate of second diaphragm and below is fixed respectively.
Preferably, the second transverse plate and the second vertical plate form a sliding structure.
Preferably, a recording device is arranged above the second vertical plate on the left side;
the recording device comprises a third vertical plate, a sleeve, a third transverse plate, an index, a first vertical rod, a first L-shaped plate, a fourth transverse plate, a second spring and a second vertical rod;
the outer wall below the third vertical plate is in clearance fit with the inner wall of the groove of the left second vertical plate, the outer wall above the third vertical plate is provided with a sleeve, the inner wall of the sleeve is in clearance fit with the outer wall of the third vertical plate, the right side of the sleeve is fixedly connected with a third transverse plate, the right side of the third transverse plate is fixedly connected with an index, a through hole is processed inside the third transverse plate, a first vertical rod is installed at the through hole of the third transverse plate, the outer wall of the first vertical rod is in clearance fit with the inner wall of the through hole of the third transverse plate, a first L-shaped plate is installed on the outer wall of the first vertical rod, a through hole is processed inside the right side of the first L-shaped plate, the inner wall of the through hole of the first L-shaped plate is in clearance fit with the outer wall of the first vertical rod, a fourth transverse plate is fixedly connected with the lower surface of the first vertical rod, the left side of the fourth transverse plate is fixedly, the upper and lower side outer wall of second spring links to each other with first L shaped plate and fourth diaphragm are fixed respectively, the right side top rigid coupling of fourth diaphragm has the second montant, the left side top of second montant links to each other with first L shaped plate is fixed.
Preferably, the fourth transverse plate and the third vertical plate are vertically arranged.
Preferably, a fixing device is installed above the left side of the second vertical plate on the left side;
the fixing device comprises a concave plate, a gear, a fourth vertical plate, a tooth plate, a second L-shaped plate and a third spring;
the right side outer wall of notch plate links to each other with left second riser is fixed, the groove of notch plate rotates through the pivot and is connected with the gear, the upper surface right side rigid coupling of notch plate has the fourth riser, tooth dental lamina is installed to the through-hole department of fourth riser, the outer wall of tooth dental lamina is respectively with the through-hole department inner wall clearance fit of fourth riser and left second riser, tooth dental lamina and gear intermeshing, the right side outer wall of tooth dental lamina and the groove inner wall clearance fit of third riser, the upper surface rigid coupling of tooth dental lamina has second L shaped plate, the third spring is installed on the right side of second L shaped plate, the left and right sides of third spring links to each other with second L shaped plate and left second riser are fixed respectively.
Preferably, the transmission ratio of the tooth plate to the gear is 1: 1.
compared with the prior art, the invention has the beneficial effects that:
according to the automatic bridge support deformation detection system, through the mutual matching of the first transverse plate, the first vertical plate, the pressing plate, the bridge support body, the index and other structures, when the bridge support body deforms, the bridge support body can drive the first vertical plate to move downwards through the clamping plate, the first transverse plate and the like above the bridge support body, so that the index changes the scale position aligned on the first vertical plate, and the deformation amount of the bridge support body can be obtained quickly;
according to the automatic detection system for bridge support deformation, through mutual matching of the structures such as the second transverse plate, the second vertical plate, the first spring and the first vertical plate, the second transverse plate can be driven by the first vertical plate to move downwards, so that the second transverse plate extrudes the first spring, and deformation of a bridge support body can be observed more easily through the elastic performance of the first spring;
according to the automatic bridge support deformation detection system, the sleeve can drive the third transverse plate to move through the mutual matching of the structures such as the third vertical plate, the sleeve, the index, the first vertical rod, the first L-shaped plate, the second spring and the second vertical rod, the third transverse plate drives the first L-shaped plate and the index to move, the first L-shaped plate drives the second vertical rod to stretch, and meanwhile, the positions of the index and the like can be fixed through the bolts on the second vertical rod, so that the index can be conveniently adjusted;
this bridge beam supports warp automated inspection system, through the mutually supporting between structures such as concave plate, gear, fourth riser, tooth board, second L shaped plate and third spring, can make tooth board enter into the recess of third riser under the spring action of third spring in to fix the position of third riser.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 at the first spring, the second riser and the second cross plate;
FIG. 3 is a schematic view of the sleeve of FIG. 1, at the location of the third riser and the first L-shaped panel;
FIG. 4 is a schematic structural view of the indicator, the third horizontal plate and the first vertical rod of FIG. 1;
FIG. 5 is a schematic structural view of the second spring, the second vertical rod and the fourth horizontal plate of FIG. 1;
fig. 6 is a schematic view of the structure of the second L-shaped plate, the gear and the concave plate of fig. 1.
In the figure: 1. bridge beam supports body, 2, clamp plate, 3, detection device, 301, first diaphragm, 302, the first riser, 303, the second diaphragm, 304, the second riser, 305, the first spring, 4, recorder, 401, the third riser, 402, the sleeve, 403, the third diaphragm, 404, the index, 405, first montant, 406, first L shaped plate, 407, the fourth diaphragm, 408, the second spring, 409, the second montant, 5, fixing device, 501, the concave plate, 502, the gear, 503, the fourth riser, 504, the tooth board, 505, the second L shaped plate, 506, the third spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: an automatic detection system for bridge bearing deformation comprises a bridge bearing body 1 and a pressing plate 2, wherein the upper outer wall and the lower outer wall of the bridge bearing body 1 are fixedly connected with the pressing plate 2, a detection device 3 is arranged between the upper pressing plate and the lower pressing plate 2, the detection device 3 comprises a first transverse plate 301, a first vertical plate 302, a second transverse plate 303, a second vertical plate 304 and a first spring 305, the upper surface of the first transverse plate 301 is fixedly connected with the lower outer wall of the upper pressing plate 2, the lower surface of the first transverse plate 301 is fixedly connected with the first vertical plate 302, the outer wall of the front end surface of the first vertical plate 302 is processed with scales, the scales can be observed more easily through the scales on the first vertical plate 302, the lower surface of the first vertical plate 302 is fixedly connected with the second transverse plate 303, the outer walls on the left side and the right side of the second transverse plate 303 are both provided with the second vertical plates 304, the inner walls of the left vertical plates and the right vertical plates, second riser 304 can carry on spacingly to second diaphragm 303 through the spout, the lower surface of second riser 304 links to each other with 2 fixed pressboards of below, recess and through-hole are processed respectively to the top of left second riser 304, 2 first springs 305 are installed to the below of second diaphragm 303, the upper and lower side outer wall of controlling first spring 305 links to each other with 2 fixed pressboards of second diaphragm 303 and below respectively, when deformation takes place for bridge beam supports body 1, bridge beam supports body 1 drives first riser 302 downstream through the pressboards of top etc. to extrude first spring, sliding structure is constituteed with second riser 304 to second diaphragm 303.
The recording device 4 is installed above the left second vertical plate 304, the recording device 4 comprises a third vertical plate 401, a sleeve 402, a third transverse plate 403, an index 404, a first vertical rod 405, a first L-shaped plate 406, a fourth transverse plate 407, a second spring 408 and a second vertical rod 409, the lower outer wall of the third vertical plate 401 is in clearance fit with the inner wall of the groove of the left second vertical plate 304, the upper outer wall of the third vertical plate 401 is provided with the sleeve 402, the inner wall of the sleeve 402 is in clearance fit with the outer wall of the third vertical plate 401, the sleeve 402 can move at the third vertical plate 401, the right side of the sleeve 402 is fixedly connected with the third transverse plate 403, the right side of the third transverse plate 403 is fixedly connected with the index 404, the detection can be carried out through the index 404 and the scale on the first vertical plate 402, a through hole is processed inside the third transverse plate 403, the first vertical rod 405 is installed at the through hole of the third transverse plate 403, the outer wall of the first vertical rod 405 is, a first L-shaped plate 406 is arranged on the outer wall of the first vertical rod 405, a through hole is processed inside the right side of the first L-shaped plate 406, the inner wall of the through hole of the first L-shaped plate 406 is in clearance fit with the outer wall of the first vertical rod 405, the first L-shaped plate 406 can move at the first vertical rod 405, a fourth transverse plate 407 is fixedly connected to the lower surface of the first vertical rod 405, the left side of the fourth transverse plate 407 is fixedly connected to a third vertical plate 401, a second spring 408 is arranged on the outer wall below the first vertical rod 405, the outer walls above and below the second spring 408 are respectively fixedly connected to the first L-shaped plate 406 and the fourth transverse plate 407, when the first L-shaped plate 406 moves downwards, the second spring 408 is in a compressed state, a second vertical rod 409 is fixedly connected to the upper portion of the right side of the fourth transverse plate 407, the second vertical rod 409 has flexibility, the outer wall above the right side of the second vertical rod 409 can be tightly supported by a bolt, and the upper portion of, the fourth horizontal plate 407 is perpendicular to the third vertical plate 401.
The fixing device 5 is installed above the left side of the left second vertical plate 304, the fixing device 5 comprises a concave plate 501, a gear 502, a fourth vertical plate 503, a tooth plate 504, a second L-shaped plate 505 and a third spring 506, the outer wall of the right side of the concave plate 501 is fixedly connected with the left second vertical plate 304, a groove of the concave plate 501 is rotatably connected with the gear 502 through a rotating shaft, the right side of the upper surface of the concave plate 501 is fixedly connected with the fourth vertical plate 503, a through hole is processed in the fourth vertical plate 503, the tooth plate 504 is installed in the through hole of the fourth vertical plate 503, the outer wall of the tooth plate 504 is in clearance fit with the inner walls of the through holes of the fourth vertical plate 503 and the left second vertical plate 304 respectively, the tooth plate 504 can move in the through holes of the second vertical plate 304 and the fourth vertical plate, the tooth plate 504 is meshed with the gear 502, the tooth plate 504 can drive the gear 502 to rotate, the outer wall of the right side of the tooth plate 504 is in clearance fit with the, the tooth board 504 can be fixed through the recess of third riser 401, and the upper surface rigid coupling of tooth board 504 has second L shaped board 505, and the right side of second L shaped board 505 is installed and is had third spring 506, and the left and right sides of third spring 506 is fixed with second L shaped board 505 and left second riser 304 respectively and is linked to each other, and third spring 506 is in tensile state when second shaped board 505 moves to the left side, and the drive ratio of tooth board 504 and gear 502 is 1: 1.
when an operator needs to use the automatic bridge support deformation detection system, firstly, the operator pulls the second L-shaped plate 505 to the left side to enable the second L-shaped plate 505 to drive the tooth plate 504 to move, the tooth plate 504 drives the gear 502 to rotate, the tooth plate 504 is enabled to move more stably through the gear 502, meanwhile, the tooth plate 504 stretches the third spring 506 through the left second vertical plate 304 to enable the third spring 506 to generate elastic deformation, the third vertical plate 401 penetrates through the sleeve 402 to enable the third vertical plate 401 to enter the groove above the left second vertical plate 304, the second L-shaped plate 505 is loosened to enable the second L-shaped plate 505 to drive the tooth plate 504 to move under the elastic force of the third spring 506 to enable the tooth plate 504 to enter the groove of the third vertical plate 401, so that the third vertical plate 401 is fixed, the bolt on the second vertical rod 409 is loosened, the sleeve 402 drives the third transverse plate 403 to move, the third transverse plate 403 drives the first L-shaped plate 406 to move on the first vertical rod 405, and the third transverse plate 403 drives the indicator 404 to move, so that the right side of the indicator 404 is aligned with the scale on the first vertical plate 301, the bolt on the second vertical rod 409 is screwed down, the position of the indicator 404 is fixed, and the purpose of conveniently detecting the bridge is achieved.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a bridge beam supports warp automatic check out system, includes bridge beam supports body (1) and clamp plate (2), the equal rigid coupling in upper and lower outside wall of bridge beam supports body (1) has clamp plate (2), its characterized in that: a detection device (3) is arranged between the upper pressing plate and the lower pressing plate (2);
the detection device (3) comprises a first transverse plate (301), a first vertical plate (302), a second transverse plate (303), a second vertical plate (304) and a first spring (305);
the upper surface of the first transverse plate (301) is fixedly connected with the outer wall of the lower part of the pressing plate (2) above, the lower surface of the first transverse plate (301) is fixedly connected with a first vertical plate (302), the outer wall of the front end surface of the first vertical plate (302) is processed with scales, the lower surface of the first vertical plate (302) is fixedly connected with a second transverse plate (303), the outer walls of the left side and the right side of the second transverse plate (303) are respectively provided with a second vertical plate (304), the inner wall of the inner side of the left side and the right side of the second vertical plate (304) is processed with a sliding groove, the inner wall of the sliding groove of the second vertical plate (304) is in clearance fit with the outer wall of the second transverse plate (303), the lower surface of the second vertical plate (304) is fixedly connected with the pressing plate (2) below, the left side of the upper part of the second vertical plate (304) is respectively processed with a groove and a through, the upper and lower outer walls of the left and right first springs (305) are respectively fixedly connected with a second transverse plate (303) and a pressing plate (2) below.
2. The system of claim 1, wherein the system comprises: the second transverse plate (303) and the second vertical plate (304) form a sliding structure.
3. The system of claim 1, wherein the system comprises: a recording device (4) is arranged above the second vertical plate (304) on the left side;
the recording device (4) comprises a third vertical plate (401), a sleeve (402), a third transverse plate (403), an index (404), a first vertical rod (405), a first L-shaped plate (406), a fourth transverse plate (407), a second spring (408) and a second vertical rod (409);
the outer wall of the lower portion of the third vertical plate (401) is in clearance fit with the inner wall of the groove of the left second vertical plate (304), the sleeve (402) is installed on the outer wall of the upper portion of the third vertical plate (401), the inner wall of the sleeve (402) is in clearance fit with the outer wall of the third vertical plate (401), the right side of the sleeve (402) is fixedly connected with a third transverse plate (403), the right side of the third transverse plate (403) is fixedly connected with an index (404), a through hole is formed in the third transverse plate (403), a first vertical rod (405) is installed at the through hole of the third transverse plate (403), the outer wall of the first vertical rod (405) is in clearance fit with the inner wall of the through hole of the third transverse plate (403), a first L-shaped plate (406) is installed on the outer wall of the first vertical rod (405), a through hole is formed in the right side of the first L-shaped plate (406), and the inner wall of the through hole of the first L-shaped plate (406) is in, the lower surface rigid coupling of first montant (405) has fourth diaphragm (407), the left side and the third riser (401) of fourth diaphragm (407) are fixed to be linked to each other, second spring (408) are installed to the below outer wall of first montant (405), the below outer wall of second spring (408) is fixed to be linked to each other with first L shaped plate (406) and fourth diaphragm (407) respectively, the right side top rigid coupling of fourth diaphragm (407) has second montant (409), the left side top of second montant (409) is fixed to be linked to each other with first L shaped plate (406).
4. The system of claim 3, wherein the system comprises: the fourth transverse plate (407) and the third vertical plate (401) are vertically arranged.
5. The system of claim 1, wherein the system comprises: a fixing device (5) is arranged above the left side of the second vertical plate (304) on the left side;
the fixing device (5) comprises a concave plate (501), a gear (502), a fourth vertical plate (503), a tooth plate (504), a second L-shaped plate (505) and a third spring (506);
the outer wall of the right side of the concave plate (501) is fixedly connected with a second vertical plate (304) on the left side, the groove of the concave plate (501) is rotationally connected with a gear (502) through a rotating shaft, a fourth vertical plate (503) is fixedly connected to the right side of the upper surface of the concave plate (501), a tooth plate (504) is installed at a through hole of the fourth vertical plate (503), the outer wall of the tooth plate (504) is in clearance fit with the inner wall of the through hole of the fourth vertical plate (503) and the through hole of the left second vertical plate (304) respectively, the tooth plate (504) is meshed with the gear (502), the outer wall of the right side of the tooth plate (504) is in clearance fit with the inner wall of the groove of the third vertical plate (401), a second L-shaped plate (505) is fixedly connected to the upper surface of the tooth plate (504), a third spring (506) is arranged on the right side of the second L-shaped plate (505), the left side and the right side of the third spring (506) are respectively fixedly connected with the second L-shaped plate (505) and the second vertical plate (304) on the left side.
6. The system of claim 5, wherein the system comprises: the transmission ratio of the tooth plate (504) to the gear (502) is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011357541.1A CN112197683B (en) | 2020-11-27 | 2020-11-27 | Bridge beam supports warp automatic check out system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011357541.1A CN112197683B (en) | 2020-11-27 | 2020-11-27 | Bridge beam supports warp automatic check out system |
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| CN112197683A true CN112197683A (en) | 2021-01-08 |
| CN112197683B CN112197683B (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011357541.1A Active CN112197683B (en) | 2020-11-27 | 2020-11-27 | Bridge beam supports warp automatic check out system |
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| CN87205027U (en) * | 1987-05-03 | 1988-03-02 | 四川省地矿局成都水文地质工程地质大队 | Dual-purpose high accuracy slide deformeter |
| CN202002786U (en) * | 2011-03-21 | 2011-10-05 | 长安大学 | Instrument for testing deflection of bridge |
| KR101599903B1 (en) * | 2015-10-22 | 2016-03-07 | 주식회사 한국구조물안전연구원 | Displacement meter installation system for bridge load test site |
| KR101618229B1 (en) * | 2016-01-27 | 2016-05-04 | 진충한 | Gauge for bridge bearing and bridge bearing with the same |
| KR102025139B1 (en) * | 2018-07-03 | 2019-11-04 | 유철희 | Bearing for Bridge having Gauge for Shearing Deformation |
| CN110779434A (en) * | 2019-12-02 | 2020-02-11 | 绍兴上虞渡进电子科技有限公司 | Be used for railway rails deformation quality detector |
| CN210486775U (en) * | 2019-08-19 | 2020-05-08 | 广东智弘检测鉴定有限公司 | Portable deformation detection device |
| CN211425270U (en) * | 2020-03-21 | 2020-09-04 | 山东金朝工程检测有限公司 | Bridge displacement detection device |
| CN211478324U (en) * | 2019-12-30 | 2020-09-11 | 耐尔得智能科技香河有限公司 | Concrete shrinkage expansion deformation tester |
-
2020
- 2020-11-27 CN CN202011357541.1A patent/CN112197683B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205027U (en) * | 1987-05-03 | 1988-03-02 | 四川省地矿局成都水文地质工程地质大队 | Dual-purpose high accuracy slide deformeter |
| CN202002786U (en) * | 2011-03-21 | 2011-10-05 | 长安大学 | Instrument for testing deflection of bridge |
| KR101599903B1 (en) * | 2015-10-22 | 2016-03-07 | 주식회사 한국구조물안전연구원 | Displacement meter installation system for bridge load test site |
| KR101618229B1 (en) * | 2016-01-27 | 2016-05-04 | 진충한 | Gauge for bridge bearing and bridge bearing with the same |
| KR102025139B1 (en) * | 2018-07-03 | 2019-11-04 | 유철희 | Bearing for Bridge having Gauge for Shearing Deformation |
| CN210486775U (en) * | 2019-08-19 | 2020-05-08 | 广东智弘检测鉴定有限公司 | Portable deformation detection device |
| CN110779434A (en) * | 2019-12-02 | 2020-02-11 | 绍兴上虞渡进电子科技有限公司 | Be used for railway rails deformation quality detector |
| CN211478324U (en) * | 2019-12-30 | 2020-09-11 | 耐尔得智能科技香河有限公司 | Concrete shrinkage expansion deformation tester |
| CN211425270U (en) * | 2020-03-21 | 2020-09-04 | 山东金朝工程检测有限公司 | Bridge displacement detection device |
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| Publication number | Publication date |
|---|---|
| CN112197683B (en) | 2022-09-06 |
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