CN112523077A - Bridge expansion joint width monitoring and early warning device - Google Patents
Bridge expansion joint width monitoring and early warning device Download PDFInfo
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- CN112523077A CN112523077A CN202011548339.7A CN202011548339A CN112523077A CN 112523077 A CN112523077 A CN 112523077A CN 202011548339 A CN202011548339 A CN 202011548339A CN 112523077 A CN112523077 A CN 112523077A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 230000000149 penetrating effect Effects 0.000 claims abstract description 15
- 210000001503 joint Anatomy 0.000 claims abstract description 7
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims abstract description 5
- 238000012806 monitoring device Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 206010014357 Electric shock Diseases 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- Electromagnetism (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a bridge expansion joint width monitoring and early warning device, relates to the technical field of bridge expansion joint detection devices, and solves the problems that most of monitoring mechanisms of the existing detection devices cannot conveniently implement expansion adjustment and cannot be suitable for being inserted into bridge connecting pieces with different spacing widths to monitor different expansion gaps. A bridge expansion joint width monitoring and early warning device comprises a telescopic connecting piece, wherein the whole telescopic connecting piece consists of a left half part and a right half part, the left half part and the right half part are poured and installed in a butt joint gap between two bridge end parts, and the monitoring and early warning device is inserted in a gap between the left half part and the right half part of the telescopic connecting piece; the square connecting rods are connected together in a rotating mode to form a rhombic main body framework of the device, and a rectangular mounting cavity is formed in the four square connecting rods in a penetrating mode. The invention can monitor the transverse expansion gap between the bridges and also can monitor the vertical dislocation distance, has two functions, various monitoring functions and better practicability.
Description
Technical Field
The invention relates to the technical field of bridge expansion joint detection devices, in particular to a bridge expansion joint width monitoring and early warning device.
Background
The bridge expansion joint is an indispensable part of a bridge structure, if the design is unreasonable, the construction quality cannot reach the standard, and the maintenance method is unscientific, the bridge expansion joint can cause the bridge expansion device to be damaged in different degrees, so that the beam bodies on two sides of the expansion joint generate height difference, the road surface generates cracks, vehicles can generate a vehicle jumping phenomenon and an impact effect when passing through, additional impact load is caused on the bridge and the road surface, drivers feel uncomfortable, the traffic accidents can be seriously caused, and the normal service life and the operation of the highway bridge are influenced. In order to meet the requirements of deformation and longitudinal displacement of the upper structure of the bridge, expansion joints are usually arranged between two beam ends, between the beam ends and an abutment or on the hinged position of the bridge, and the length of the beam body can be changed due to the fact that concrete greatly affected by temperature expands with heat and contracts with cold. Meanwhile, under the action of vehicle load, the length of the bridge body can be changed, and the lower structure can be settled. And the displacement of expansion joint can make expansion joint device take place to destroy when too big, can arouse simultaneously the phenomenon of jumping the car, and the width monitoring at expansion joint is important component part in the bridge maintenance work.
For example, the patent that patent number is CN202021095686.4 discloses a bridge expansion joint monitoring devices, including the monitoring devices main part, the monitoring devices main part includes connecting block one, a connecting block swing joint block device, block device includes the block piece, the block piece is two sets of for bilateral symmetry, block piece inner wall is equipped with the sliding tray, the block piece passes through the sliding tray and slides from side to side on connecting block one, block device includes the arc piece, the arc piece is two sets of for bilateral symmetry, the arc piece passes through the sliding tray and slides from side to side on connecting block one. The device can be fixed on two sides of a bridge through the clamping device in the monitoring device main body, the rubber blocks are connected through the fixing device in the clamping device under the action of the connecting springs in the fixing device, the rubber blocks are connected with the bridge on two sides through the rubber blocks, the bridge can be stably connected and is not easy to fall off, and the indicator lamp can be lightened when the bridge expansion joint is expanded to a certain degree.
The existing detection device can only carry out single monitoring on the transverse telescopic gap of the bridge, cannot adapt to the vertical dislocation of the monitored bridge, has narrow application range, cannot conveniently and quickly implement telescopic adjustment of a monitoring mechanism, cannot be suitable for being inserted into bridge connecting pieces with different spacing widths to monitor different telescopic gaps under different standards, and is poor in compatibility.
Disclosure of Invention
The invention aims to provide a bridge expansion joint width monitoring and early warning device, which solves the problems that most of monitoring mechanisms in the background technology cannot conveniently implement telescopic adjustment and cannot be suitable for being inserted into bridge connecting pieces with different spacing widths to monitor different telescopic gaps under different standards.
In order to achieve the purpose, the invention provides the following technical scheme: a bridge expansion joint width monitoring and early warning device comprises a telescopic connecting piece, wherein the whole telescopic connecting piece consists of a left half part and a right half part, the left half part and the right half part are poured and installed in a butt joint gap between two bridge end parts, and the monitoring and early warning device is inserted in a gap between the left half part and the right half part of the telescopic connecting piece; the four square connecting rods are connected together in a rotating manner to form a rhombic main body framework of the device, and a rectangular mounting cavity is formed in each of the four square connecting rods in a penetrating manner; the buzzer alarm comprises a buzzer alarm and T-shaped connecting seats, one buzzer alarm is embedded in each rectangular mounting cavity on the square connecting rod at four positions, two T-shaped connecting seats are symmetrically sleeved and rotatably mounted at the connecting positions of the front end and the rear end of the square connecting rod at four positions, and one positioning shaft is arranged on each T-shaped connecting seat in an inserting mode; the front end section and the rear end section of the two positioning shafts are sleeved with an installation frame in a sliding way; two telescopic sleeves are symmetrically and transversely supported on two shaft pins at the connecting positions of the left side and the right side of the square connecting rod.
Preferably, two all run through on the middle vertical support quarter butt of T shape connecting seat and seted up a hanging hole, and hang between the vertical support quarter butt in the middle of two front and back places and prop and be connected with a department extension spring.
Preferably, the positioning shaft comprises nail insertion cones, a row of insertion holes are formed in the front end section and the rear end section of the positioning shaft in a penetrating mode, the four nail insertion cones are symmetrically welded to the bottom of the positioning shaft, and the positioning shaft and the monitoring device are positioned in an inserting mode through the four nail insertion cones.
Preferably, the telescopic sleeves comprise telescopic rods, one telescopic rod is inserted into each of the two telescopic sleeves in a sliding manner, the two telescopic rods are tightly supported and fixed through bolts penetrating and screwed on head end sections of the two telescopic sleeves, and a round electric contact block is mounted at the head end of each telescopic rod.
Preferably, the mounting bracket is integrally formed by welding a top horizontal support frame and a bottom shaft sleeve together, wherein a bolt is screwed on the bottom shaft sleeve in a penetrating manner, and the bolt is matched with jacks at the front end and the rear end of the positioning shaft in a top-inserting manner.
Preferably, the mounting rack comprises L-shaped supporting plates and top shafts, two top shafts are inserted in the head sections of the side bars at two positions of the horizontal supporting frame at the top of the mounting rack in a penetrating manner through the spring pushing, and the two L-shaped supporting plates are symmetrically welded on the head sections of the side bars at two positions of the horizontal supporting frame.
Preferably, the front and rear groups of jacking shafts are pushed to be downwards inserted to correspondingly abut against and contact with the two T-shaped connecting seats, and a round electric contact block is fixedly mounted at the top ends of the two groups of jacking shafts.
Preferably, a circular electric-contacting block is also mounted at the bottom of each of the top end sections of the four L-shaped supporting plates, and the four top shafts push the upper slides to correspondingly abut against and contact with the four L-shaped supporting plates.
Compared with the prior art, the invention has the beneficial effects that:
1. the four square connecting rods, the two T-shaped connecting seats and the positioning shaft form a four-connecting-rod telescopic mechanism which is tensioned and positioned by the tension springs, the telescopic deformation of the mechanism can be controlled only by pulling and sliding the two T-shaped connecting seats inside and outside, the width of the early warning device is adjusted, the early warning device can be suitable for being inserted into telescopic connecting pieces with different spacing widths to monitor bridge expansion joints with different spacing, and the application is flexible and wide;
2. the two telescopic rods can be telescopically adjusted to change the distance between the telescopic rods, so that the monitoring on different gap widths under different standards is met, and the compatibility is good;
3. the two mounting frames can slide back and forth along the positioning shaft to be suitable for the telescopic deformation of the square connecting rods at four positions, so that the two T-shaped connecting seats are prevented from being blocked and the deformation adjustment is not influenced, and the two mounting frames can slide back and forth to ensure that the four top shafts on the mounting frames are always correspondingly propped on the two T-shaped connecting seats which are continuously slid and adjusted;
4. the invention can monitor the transverse expansion gap between the bridges and also can monitor the vertical dislocation distance, has two functions, various monitoring functions and better practicability.
Drawings
FIG. 1 is a schematic structural view of the present invention in an installation and use state;
FIG. 2 is a bottom view of the present invention in an installed and used state;
FIG. 3 is a schematic three-dimensional structure of the present invention;
FIG. 4 is a schematic bottom view of the present invention;
FIG. 5 is a structural schematic view of the mounting bracket of the present invention in a disassembled state;
FIG. 6 is a schematic view of a positioning shaft according to the present invention;
FIG. 7 is a schematic view of the structure of the mounting bracket of the present invention;
in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a telescopic connecting piece; 2. a square connecting rod; 201. a buzzer alarm; 202. a T-shaped connecting seat; 3. positioning the shaft; 301. nailing and inserting a cone; 4. a telescopic sleeve; 401. a telescopic rod; 5. a mounting frame; 501. an L-shaped supporting plate; 502. and (4) a top shaft.
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.
Referring to fig. 1 to 7, an embodiment of the present invention includes: a bridge expansion joint width monitoring and early warning device comprises a telescopic connecting piece 1, wherein the whole telescopic connecting piece 1 consists of a left half part and a right half part, the left half part and the right half part are poured and installed in a butt joint gap between two bridge end parts, and the monitoring and early warning device is inserted in an interval gap between the left half part and the right half part of the telescopic connecting piece 1; the four square connecting rods 2 are jointly and rotatably connected to form a rhombic main body framework of the device, and rectangular mounting cavities are formed in the four square connecting rods 2 in a penetrating mode; the buzzer alarm 201 comprises a buzzer alarm 201 and T-shaped connecting seats 202, one buzzer alarm 201 is embedded in each rectangular installation cavity on the square connecting rod 2, two T-shaped connecting seats 202 are symmetrically sleeved and rotatably installed at the connecting positions of the front end and the rear end of the square connecting rod 2, and one positioning shaft 3 is inserted and installed on the two T-shaped connecting seats 202; the front end section and the rear end section of the two positioning shafts 3 are sleeved with a mounting rack 5 in a sliding way; two telescopic sleeves 4 are symmetrically and transversely supported on two shaft pins at the connecting positions of the left side and the right side of the square connecting rod 2; the mounting rack 5 comprises L-shaped supporting plates 501 and top shafts 502, two top shafts 502 are inserted in the head sections of the side bars at two positions of the horizontal supporting frame at the top of the mounting rack 5 in a penetrating manner through the pushing of springs, and the two L-shaped supporting plates 501 are symmetrically welded on the head sections of the side bars at two positions of the horizontal supporting frame; the positioning shaft 3 comprises a nail inserting cone 301, a row of insertion holes are formed in the front end section and the rear end section of the positioning shaft 3 in a penetrating mode, the four nail inserting cones 301 are symmetrically welded to the bottom of the positioning shaft 3, the positioning shaft 3 and the monitoring device are positioned in an inserting mode through the four nail inserting cones 301, and the four nail inserting cones 301 are fixed in the inserting mode to avoid the device from sliding and shifting left and right in the monitoring use process.
The circular electric shock blocks at the head ends of the two telescopic rods 401 are electrically connected with the four buzzer alarms 201 in a control mode, and the circular electric shock blocks on the four L-shaped supporting plates 501 and the four top shafts 502 are electrically connected with the four buzzer alarms 201 in a control mode.
Further, all run through on the middle vertical support quarter butt of two T shape connecting seats 202 and seted up a department hanging hole, and hang between the middle vertical support quarter butt of two front and back departments and prop and be connected with an extension spring, square connecting rod 2 in the four places, two T shape connecting seats 202 and location axle 3 have constituteed a four-bar linkage telescopic machanism through the taut location of extension spring jointly, only need draw smooth two T shape connecting seats 202 inside and outside and just steerable this mechanism is flexible to be out of shape, adjust early warning device's width, make it monitor the bridge expansion joint of different intervals in can being suitable for the expansion joint 1 that inserts different interval widths, use nimble application extensive.
Further, the telescopic sleeve 4 comprises telescopic rods 401, one telescopic rod 401 is inserted into each of two telescopic sleeves 4 in a sliding mode, the two telescopic rods 401 are tightly supported and fixed through bolts penetrating and screwed on the head end sections of the two telescopic sleeves 4, a round contact block is installed at the head end of each telescopic rod 401, when a bridge gap is compressed and narrowed, a rhombic telescopic mechanism formed by four square connecting rods 2 can be extruded inwards, contracted and deformed, the two telescopic rods 401 are abutted and abutted together to connect the four buzzer alarms 201 for alarming, the transverse telescopic gap of the bridge is monitored, the distance between the two telescopic rods 401 can be changed in a telescopic adjusting mode, the requirements for monitoring different gap widths under different standards are met, and the compatibility is good.
Further, the mounting bracket 5 is wholly welded by the top horizontal stay frame and the bottom shaft sleeve together, wherein the bottom shaft sleeve is penetrated through and screwed with a bolt, the bolt is inserted with the jack selection top on both ends around the location axle 3 and is cooperated, two mounting brackets 5 can slide around the location axle 3 to be suitable for the flexible deformation of square connecting rod 2 in four places, avoid causing the blockage to two T-shaped connecting seats 202, influence deformation adjustment, and two mounting brackets 5 slide around can guarantee that four apical axes 502 on the mounting brackets correspond the overhead all the time on two T-shaped connecting seats 202 of constantly sliding adjustment.
Further, the front and rear jacking shafts 502 are pushed to be inserted downwards to correspondingly abut against and contact with the two T-shaped connecting seats 202, a round electric contact block is fixedly mounted at the top ends of the two jacking shafts 502, when the two bridges are vertically staggered, the left half part and the right half part of the telescopic connecting piece 1 can also be vertically staggered and press and deflect the whole monitoring device, when the whole device deflects along the positioning shaft 3, the two T-shaped connecting seats 202 can upwards push the left jacking shaft 502 and the right jacking shaft 502, so that the two jacking shafts 502 abut against and contact with the two L-shaped supporting plates 501 to switch on and alarm the four buzzer alarms 201, and monitoring the vertical dislocation of the bridges.
Furthermore, the bottom of the top end sections of the four L-shaped supporting plates 501 are all provided with a round electric-contacting block, and the four top shafts 502 are pushed upwards to correspondingly abut against and contact with the four L-shaped supporting plates 501.
The working principle is as follows: the four square connecting rods 2, the two T-shaped connecting seats 202 and the positioning shaft 3 form a four-connecting-rod telescopic mechanism which is tensioned and positioned by a tension spring, the telescopic deformation of the mechanism can be controlled only by pulling and sliding the two T-shaped connecting seats 202 inwards and outwards, the width of the early warning device is adjusted, the early warning device can be suitable for being inserted into telescopic connecting pieces 1 with different spacing widths to monitor bridge expansion joints with different spacing, the four nail inserting cones 301 are fixedly inserted to avoid the left and right sliding displacement of the device in the monitoring and using process, when the bridge gap is compressed and narrowed, the diamond telescopic mechanism formed by the four square connecting rods 2 is extruded inwards to shrink and deform and enables the two telescopic rods 401 to butt against together to connect the four buzzer alarms 201 for alarming, the transverse telescopic gap of the bridge is monitored, and the distance between the two telescopic rods 401 can be adjusted and changed in a telescopic way to meet the monitoring of different gap widths under different standards, the compatibility is good, two mounting frames 5 can slide back and forth along the positioning shaft 3 to be suitable for the telescopic deformation of the square connecting rods 2 at four positions, the blocking of two T-shaped connecting seats 202 is avoided, the deformation adjustment is influenced, the two mounting frames 5 can slide back and forth to ensure that four top shafts 502 on the mounting frames are always correspondingly arranged on the two T-shaped connecting seats 202 which are continuously slid and adjusted, when two bridges are vertically staggered, the left half part and the right half part of the telescopic connecting piece 1 can also be vertically staggered and press and deflect the whole monitoring device, when the whole device deflects along the positioning shaft 3, the two T-shaped connecting seats 202 can upwards push the left top shaft 502 and the right top shaft 502, the two top shafts 502 are in abutting contact with two L-shaped supporting plates 501 to switch on the four buzzing alarms 201 for alarming, and the vertical dislocation of the bridges is monitored.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a bridge expansion joint width monitoring early warning device which characterized in that: the bridge comprises a telescopic connecting piece (1), wherein the whole telescopic connecting piece (1) consists of a left half part and a right half part, the left half part and the right half part are poured and installed in a butt joint gap between two bridge end parts, and a monitoring and early warning device is inserted in an interval gap between the left half part and the right half part of the telescopic connecting piece (1); the four square connecting rods (2) are jointly and rotatably connected to form a rhombic main body framework of the device, and rectangular mounting cavities are formed in the four square connecting rods (2) in a penetrating manner; the buzzer alarm (201) comprises a buzzer alarm (201) and T-shaped connecting seats (202), one buzzer alarm (201) is embedded in each rectangular mounting cavity on the square connecting rod (2), two T-shaped connecting seats (202) are symmetrically sleeved and rotatably mounted at the connecting positions of the front end and the rear end of each square connecting rod (2), and one positioning shaft (3) is inserted and mounted on each T-shaped connecting seat (202); the front end section and the rear end section of each of the two positioning shafts (3) are sleeved with an installation frame (5) in a sliding way; two telescopic sleeves (4) are symmetrically and transversely supported on two shaft pins at the connecting positions of the left side and the right side of the square connecting rod (2).
2. The bridge expansion joint width monitoring and early warning device of claim 1, wherein: two hang holes are formed in the middle vertical support short rod of the T-shaped connecting seat (202) in a penetrating mode, and a tension spring is connected between the middle vertical support short rods in the front and the rear in a hanging and supporting mode.
3. The bridge expansion joint width monitoring and early warning device of claim 1, wherein: the positioning shaft (3) comprises a nail inserting cone (301), a row of insertion holes are formed in the front end section and the rear end section of the positioning shaft (3) in a penetrating mode, the four nail inserting cones (301) are symmetrically welded to the bottom of the positioning shaft (3), and the positioning shaft (3) and the monitoring device are positioned in an inserting mode through the four nail inserting cones (301).
4. The bridge expansion joint width monitoring and early warning device of claim 1, wherein: the telescopic sleeves (4) comprise telescopic rods (401), one telescopic rod (401) is inserted into each of the two telescopic sleeves (4) in a sliding mode, the two telescopic rods (401) are tightly supported and fixed through bolts penetrating and screwed on the head end sections of the two telescopic sleeves (4), and a round electric contact block is mounted at the head end of each telescopic rod (401).
5. The bridge expansion joint width monitoring and early warning device of claim 1, wherein: the whole mounting bracket (5) is formed by welding a top horizontal support frame and a bottom shaft sleeve together, wherein a bolt is screwed on the bottom shaft sleeve in a penetrating mode, and the bolt is matched with jacks at the front end and the rear end of the positioning shaft (3) in a top insertion mode.
6. The bridge expansion joint width monitoring and early warning device of claim 1, wherein: the mounting rack (5) comprises L-shaped supporting plates (501) and top shafts (502), the top end sections of the side rods at two positions of the horizontal supporting frame at the top of the mounting rack (5) are pushed by springs to penetrate through and be inserted with the two top shafts (502), and the two L-shaped supporting plates (501) are symmetrically welded on the top end sections of the side rods at two positions of the horizontal supporting frame.
7. The bridge expansion joint width monitoring and early warning device of claim 6, wherein: the front and the rear groups of the jacking shafts (502) are pushed to be inserted downwards to correspondingly abut against and contact with the two T-shaped connecting seats (202), and a round electric contact block is arranged and fixed at the top ends of the two groups of jacking shafts (502).
8. The bridge expansion joint width monitoring and early warning device of claim 6, wherein: the bottom of the top section of the L-shaped supporting plate (501) is also provided with a round electric-shock block, and the four top shafts (502) push upwards to correspondingly abut against and contact with the four L-shaped supporting plates (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548339.7A CN112523077B (en) | 2020-12-24 | 2020-12-24 | Bridge expansion joint width monitoring and early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548339.7A CN112523077B (en) | 2020-12-24 | 2020-12-24 | Bridge expansion joint width monitoring and early warning device |
Publications (2)
| Publication Number | Publication Date |
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| CN112523077A true CN112523077A (en) | 2021-03-19 |
| CN112523077B CN112523077B (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011548339.7A Expired - Fee Related CN112523077B (en) | 2020-12-24 | 2020-12-24 | Bridge expansion joint width monitoring and early warning device |
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| CN (1) | CN112523077B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115821737A (en) * | 2022-11-11 | 2023-03-21 | 灌南畅安交通工程有限公司 | Highway bridge engineering expansion joint detection device and use method thereof |
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| CN211977816U (en) * | 2020-06-15 | 2020-11-20 | 中交一公局集团有限公司 | Bridge expansion joint monitoring devices |
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2020
- 2020-12-24 CN CN202011548339.7A patent/CN112523077B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| KR100636897B1 (en) * | 2005-11-15 | 2006-10-23 | 비앤티엔지니어링(주) | A measuring device for safety testing on a part offlexible coupling in bridge |
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| CN210129280U (en) * | 2019-08-01 | 2020-03-06 | 华北水利水电大学 | Crack triggers formula SMS alarm device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115821737A (en) * | 2022-11-11 | 2023-03-21 | 灌南畅安交通工程有限公司 | Highway bridge engineering expansion joint detection device and use method thereof |
| CN115821737B (en) * | 2022-11-11 | 2023-09-15 | 灌南畅安交通工程有限公司 | Highway bridge engineering expansion joint detection device and use method thereof |
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| CN112523077B (en) | 2022-03-29 |
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