CN109540432A - Double-connecting rod type sensor fixed mechanism and bridge monitoring device - Google Patents
Double-connecting rod type sensor fixed mechanism and bridge monitoring device Download PDFInfo
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- CN109540432A CN109540432A CN201910016319.6A CN201910016319A CN109540432A CN 109540432 A CN109540432 A CN 109540432A CN 201910016319 A CN201910016319 A CN 201910016319A CN 109540432 A CN109540432 A CN 109540432A
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- lower link
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- fixed mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The purpose of the present invention is to provide a kind of sensor fixed mechanisms that is easy for installation, will not generating installation site deviation, comprising: two fixation kits, it is corresponding with two fixation holes respectively；And at least one connector, wherein, fixation kit has pedestal and fixed connecting rod on the base for being fixed on pre-position, connecting rod is made of the upper connecting rod and lower link being rotatablely connected by shaft, lower link is rotated to strain transducer direction to fixed strain transducer after enabling lower link and upper connecting rod to pass through fixation hole, connector is Weak link part, is connected with each other between the pedestal of two fixation kits by connector.Sensor of the invention fixed mechanism has the advantages that installation is simple, is not likely to produce error in mounting position.Further, the present invention also provides the bridge monitoring devices containing the sensor fixed mechanism.
Description
Technical field
The invention belongs to structure monitoring field, it is related to a kind of sensor fixed mechanism and containing the sensor fixed mechanism
Bridge monitoring device, and in particular to a kind of double-connecting rod type sensor fixed mechanism and bridge monitoring device.
Background technique
Strain transducer can measure the deformation of works in such a way that mechanical deformation is converted to electric signal, therefore
It is widely used in structure monitoring field.
In use, strain transducer needs to be firmly-fixed to works surface to be measured so that strain transducer with
Works cooperative transformation simultaneously guarantees that strain transducer is not fallen off.There are two perforative fixations for currently used strain transducer tool
Hole, fixing device includes two screw bolt and nut for having pedestal, specific mounting means are as follows: pastes the pedestal with bolt
In body structure surface, bolt is inserted the sensors into, finally screws matching nut, strain transducer is fixed to be completed.
Although above-mentioned strain transducer fixing means can effectively fix sensor, drawback is also evident from: nut and
Nut separate design to lose one of them functionality for losing whole device；The position of sensor installation is typically also
Not easy-operating position (such as bridge bottom surface etc.) carries out tightening nut in this position and relatively expends energy, misoperation also rapid wear
Bad sensor；Since sensor has regular length, and the form of two standalone basis is easy to produce installation site deviation, causes to pass
The installation of sensor loosens, and then measurement accuracy and stability.
Summary of the invention
To solve the above problems, providing a kind of sensor fixed mechanism easy for installation, that installation site deviation will not be generated
And bridge monitoring device, present invention employs following technical solutions:
The present invention provides a kind of double-connecting rod type sensor fixed mechanism, for the fixation hole that penetrates through there are two tools to be answered
Become sensor be mounted on to the installed position on geodesic structure characterized by comprising two fixation kits, respectively with two
Fixation hole is corresponding；And at least one connector, wherein fixation kit have for be fixed on the pedestal of pre-position with
And fixed connecting rod on the base, connecting rod is made of the upper connecting rod and lower link being rotatablely connected by shaft, so that lower link
And upper connecting rod can rotate to fixed strain transducer across lower link after fixation hole to strain transducer direction, connector is
Weak link part passes through connector between the pedestal of two fixation kits and is connected with each other.
Double-connecting rod type sensor fixed mechanism provided by the invention, can also have such technical characteristic, wherein above connect
It is that round and depth direction and shaft length direction are in the same direction that one of them of bar and lower link are equipped with shape at rotating shaft position
It is ellipse and dashing forward in recessed portion that another of recessed portion, upper connecting rod and lower link are equipped with shape at rotating shaft position
The portion of rising, recess are equipped with multiple arc grooves being along the circumferential direction distributed, shape and the groove phase of protrusion both ends part
It is corresponding, the relatively rotate position in rearward projection portion of upper connecting rod and lower link is limited by groove, to allow upper connecting rod
Angle between lower link is fixed and then completes the fixation of pair of strain sensors.
Double-connecting rod type sensor fixed mechanism provided by the invention, can also have such technical characteristic, wherein above connect
It is that round and depth direction and shaft length direction are in the same direction that one of them of bar and lower link are equipped with shape at rotating shaft position
It is protrusion round and in recessed portion that another of recessed portion, upper connecting rod and lower link are equipped with shape at rotating shaft position
Portion, recess are equipped with multiple the first ratchets being along the circumferential direction distributed, along the circumferential direction divide on the outside of protrusion equipped with multiple
Second ratchet of cloth, the first ratchet are matched with the second ratchet so that upper connecting rod and lower link relatively rotate the latter two it
Between angle it is fixed and then complete the fixation of pair of strain sensors.
Double-connecting rod type sensor fixed mechanism provided by the invention, can also have such technical characteristic, wherein weak company
Fitting is connecting rod or connection sheet made of plastics or rubber.
Double-connecting rod type sensor fixed mechanism provided by the invention, can also have such technical characteristic, wherein pedestal
For metal base.
Double-connecting rod type sensor fixed mechanism provided by the invention, can also have such technical characteristic, wherein pedestal
Side far from upper connecting rod has fixed area, which is equipped with for pedestal fixation to be pasted onto installed position
Adhesive-layer.
Double-connecting rod type sensor fixed mechanism provided by the invention, can also have such technical characteristic, wherein viscose glue
Release layer is additionally provided on layer.
The present invention also provides a kind of bridge monitoring devices, special for being monitored to as the bridge to geodesic structure
Sign is, comprising: strain transducer, for treating the carry out strain monitoring of geodesic structure, there are two the fixation holes penetrated through for tool；And
Double-connecting rod type sensor fixed mechanism is mounted on for strain transducer to the installed position on geodesic structure, wherein double link
Formula sensor fixed mechanism is described in any item double-connecting rod type sensor fixed mechanisms as above.
Invention action and effect
The double-connecting rod type sensor fixed mechanism and bridge monitoring device provided according to the present invention, due to being used between pedestal
Connector is attached, and pedestal is equipped with the upper connecting rod and lower connecting rod being relatively rotatable to each other, and there is no need to other volumes
Strain transducer can be mounted on on geodesic structure by outer part, not only easy to operate, moreover it is possible to avoid part lose and caused by
Non-serviceable drawback.
Since pedestal is connected with each other by connector with certain length, so that the distance between two connecting rods can be with
The distance between fixation hole of strain transducer is identical, therefore will not generate installation site deviation when installation.Further, connector
For Weak link part, therefore new measurement error will not be introduced because of the connection design between pedestal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the bridge monitoring device of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the double-connecting rod type sensor fixed mechanism of the embodiment of the present invention one；
Fig. 3 is the present invention looks up structural representation of the double-connecting rod type sensor fixed mechanism of the embodiment of the present invention one；
Fig. 4 is the structural schematic diagram of the fixation kit of the embodiment of the present invention one；
Fig. 5 is the enlarged diagram of the connection structure between the upper connecting rod and lower link of the embodiment of the present invention one；
Fig. 6 is the enlarged diagram of the connection structure between the upper connecting rod and lower link of the embodiment of the present invention two.
Specific embodiment
Illustrate a specific embodiment of the invention below in conjunction with attached drawing.
<embodiment one>
Fig. 1 is the structural schematic diagram of the bridge monitoring device of the embodiment of the present invention one.
As shown in Figure 1, the bridge monitoring device 100 of the present embodiment is used to detect to as the bridge 1 to geodesic structure,
Including strain transducer 5 and double-connecting rod type sensor fixed mechanism 10.
Wherein, strain transducer 5 is in rectangular shape, and consolidating for a perforation is respectively provided on two ends of length direction
Determine hole；Double-connecting rod type sensor fixed mechanism 10 is used to the strain transducer 5 being fixed to bridge 1.
Fig. 2 is the structural schematic diagram of the double-connecting rod type sensor fixed mechanism of the embodiment of the present invention one, and Fig. 3 is of the invention real
Apply the present invention looks up structural representation of the double-connecting rod type sensor fixed mechanism of example one.
As shown in Figures 2 and 3, there are two fixation kit 11 and three connections for the tool of double-connecting rod type sensor fixed mechanism 10
Part 4.
Fig. 4 is the structural schematic diagram of the fixation kit of the embodiment of the present invention one.
As shown in figs 2-4, fixation kit 11 includes pedestal 3 and connecting rod 2.
Pedestal 3 is metal base, is made by metal materials such as steel, cast iron, aluminium alloys.Its upper surface is flat table
Face, the flat surfaces are equipped with the fixed area of coating adhesive-layer, are additionally provided with release layer on adhesive-layer.In use, by release layer
It throws off, pedestal 3 can be pasted onto the predetermined installation site of bridge 1 by adhesive-layer.
Connector 4 is Weak link part, that is, the rod-like element made of the rigidity such as plastics, rubber lesser material.Three connections
Part 4 is arranged in parallel, and both ends are separately fixed on pedestal 3, enables connecting rod 2 on the pedestal 3 of two fixation kits 11
Certain distance is enough kept, the distance is identical as the distance between two fixation holes of strain transducer 5.
Connecting rod 2 is made of upper connecting rod 2.1 and lower link 2.2, and upper connecting rod 2.1 is fixed on the lower surface of pedestal 3 and and base
Seat 3 is integrally formed, and length is corresponding with the thickness of strain transducer 5.
The upper end of lower link 2.2 and the lower end of upper connecting rod 2.1 are rotatablely connected by shaft, that is, upper connecting rod 2.1 is under
Through hole is all had on connecting rod 2.2, shaft is also cross two through holes；Meanwhile both ends of the shaft is respectively provided with positioned at upper connecting rod
2.1 and the outside of lower link 2.2 flange part (not shown), pass through shaft between upper connecting rod 2.1 and lower link 2.2 as a result,
It is also fixed together by the shaft while rotation connection.
Fig. 5 is the enlarged diagram of the connection structure between the upper connecting rod and lower link of the embodiment of the present invention one.
As shown in figure 5, the lower end of upper connecting rod 2.1 is equipped with circular recessed portion 2.1.1, the recessed portion at rotating shaft position
2.1.1 inside is equipped with multiple arc groove 2.1.2 (a part is only shown in figure) being distributed uniformly and circumferentially.
The upper end of lower link 2.2 is equipped with oval protrusion 2.2.1, and protrusion 2.2.1 is embedded in recessed portion
2.1.1 interior.The length of protrusion 2.2.1 is corresponding with the diameter of recessed portion 2.1.1, and the both ends part of protrusion 2.2.1
Shape is corresponding with groove 2.1.2, and in stationary state, the both ends of protrusion 2.2.1 are just respectively embedded in positioned at recessed portion
2.1.1 in the two groove 2.1.2 of same diametrically.As a result, when lower link 2.2 is rotated relative to upper connecting rod 2.1, dash forward
Portion 2.2.1 is played to be detached from from two original groove 2.1.2, and be embedded in after rotation other two be located at it is same diametrically
Groove 2.1.2.
By the connection structure between above-mentioned upper connecting rod 2.1 and lower link 2.2, lower link 2.2 can be relative to upper company
Angle is fixed after bar 2.1 rotates, to realize lock function.In addition, the locking gear of lower link 2.2 (can be locked
Position) it is corresponding with the position of groove 2.1.2, correspondingly, two locking gears between angles also just with it is two neighboring recessed
Angle α of the central point of slot 2.1.2 on recessed portion 2.1.1 circumferencial direction is corresponding.In the present embodiment, α is 5 °.
Below in conjunction with the fixed setting method of the bridge monitoring device 100 of Detailed description of the invention the present embodiment.
Firstly, the release layer on pedestal 3 is thrown off, then two pedestals 3 are divided in the case where connector 4 keeps straight
It is not pasted on bridge 1.
Then, two fixation holes of strain transducer 5 are each passed through connecting rod 2, due to the length and strain of upper connecting rod 2.1
The thickness of sensor 5 is corresponding, therefore the downside surface of strain transducer 5 and the upper end of lower link 2.2 are flush at this time.Turn
Dynamic lower link 2.2, when going to horizontal direction, lower link 2.2 can block the downside surface of strain transducer 5 just, this is at present
Connecting rod 2.2 is also locked because of groove 2.1.2 and protrusion 2.2.1, and strain transducer 5 is just fixed by double-connecting rod type sensor
Mechanism 10 has been fixed on bridge 1.
The effect and effect of embodiment
According to double-connecting rod type sensor fixed mechanism provided in this embodiment and bridge monitoring device, due to being adopted between pedestal
It is attached with connector, and pedestal is equipped with the upper connecting rod and lower connecting rod being relatively rotatable to each other, there is no need to other
Strain transducer can be mounted on on geodesic structure by additional parts, not only easy to operate, moreover it is possible to part be avoided to lose and cause
Non-serviceable drawback.
Since pedestal is connected with each other by connector with certain length, so that the distance between two connecting rods can be with
The distance between fixation hole of strain transducer is identical, therefore will not generate installation site deviation when installation.Further, connector
For Weak link part, therefore new error will not be introduced because of the connection design between pedestal.
In embodiment, since the connection structure between upper connecting rod and lower link can be realized locking, strain transducer
Fixing-stable, it is not easy to fall or loosen.Meanwhile it only needing to rotate lower link when installation and can complete the fixed behaviour of sensor
Make, rotation lower link can carry out extraction sensor operations, therefore the fixed machine of double-connecting rod type sensor of the present embodiment when disassembly
The disassembling operations of structure are easily accomplished, and the replacement of strain transducer is also easy to accomplish.
<embodiment two>
In the present embodiment two, for the structure being the same as example 1, gives identical symbol and omit identical theory
It is bright.
The difference of the structure of the present embodiment two and embodiment one is the connection structure between upper connecting rod 2.1 and lower link 2.2.
Fig. 6 is the enlarged diagram of the connection structure between the upper connecting rod and lower link of the embodiment of the present invention two.
As shown in fig. 6, the upper connecting rod 2.1 and lower link 2.2 of the present embodiment are realized also by shaft and are rotatablely connected, while on
Connecting rod 2.1 also is provided with recessed portion 2.1.1 at rotating shaft position.
What is different from the first embodiment is that the protrusion 2.2.2 being arranged on lower link 2.2 is corresponding with recessed portion 2.1.1
Round protrusion, the inner sidewall of recessed portion 2.1.1 is equipped with equally distributed multiple first ratchet 2.1.3 and (only shows one in figure
A first ratchet 2.1.3), the outer surface of protrusion 2.2.2 is equipped with equally distributed multiple second ratchet 2.2.3.First
Ratchet 2.1.3 and the second ratchet 2.2.3 is that (an edge protrusion diametrical direction of i.e. single ratchet extends inclination ratchet, separately
On one side it is circular shape), and the inclined direction of the two is opposite (i.e. the circular shape side of the two is opposite).First ratchet 2.1.3
It cooperates with the second ratchet 2.2.3, so that lower link 2.2 is merely able to rotate in one direction, and due between ratchet
Snap-in function and can not be rotated in the opposite sense.
This connection structure of the present embodiment be unlocked lower link 2.2 can not after locking, compared with embodiment one,
Lower link 2.2 is more difficult to loosen, therefore fixed function is stronger, and strain transducer 5 is more difficult to be loosened.But due to not being able to rotate
Unlock needs to destroy connecting rod 2 when removing strain transducer 5, therefore disassembly is more difficult, suitable for not needing to dismantle substantially after installation
Occasion.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be within the scope of protection determined by the claims.
For example, recessed portion is arranged in upper connecting rod in embodiment, protrusion is arranged on lower link, but in this hair
In bright, which can also be in turn, that is, recessed portion is arranged on lower link, and protrusion is arranged in upper connecting rod.
In embodiment, connector is the form of three connecting rods being parallel to each other, but in the present invention, the quantity of connecting rod
Can also with when other quantity, connector can also use thin connection sheet form.
In embodiment, the fixed area of pedestal is equipped with adhesive-layer and release layer, convenient for being fixed in no viscose glue.
But in the present invention, fixed area can also be not provided with adhesive-layer and release layer, in addition when installation is pasted i.e. with adhesive
It can.
In embodiment, recess is provided with groove.But it in the present invention, can also be in recess circumference
Groove is set in a part, such as is 5 ° according to adjacent grooves angle in 45 ° of circumference ranges and is evenly distributed with grooves, or according to adjacent
FLUTE ANGLE is 9 ° of uniformly distributed grooves etc..These modes also can be realized self-locking function, and numbers of gear steps is reasonable, angle between gear
Degree is suitable.
Claims (8)
1. a kind of double-connecting rod type sensor fixed mechanism, for the strain transducer of the fixation hole penetrated through there are two tools to be mounted on
To the installed position on geodesic structure characterized by comprising
Two fixation kits, it is corresponding with two fixation holes respectively；And
At least one connector,
Wherein, the fixation kit has the pedestal for being fixed on the pre-position and fixed company on the base
Bar,
The connecting rod is made of the upper connecting rod being rotatablely connected by shaft and the lower link so that the lower link and it is described on
The lower link can be rotated to the strain transducer direction to which the fixed strain passes after connecting rod passes through the fixation hole
Sensor,
The connector is Weak link part, is mutually interconnected between the pedestal of two fixation kits by the connector
It connects.
2. double-connecting rod type sensor fixed mechanism according to claim 1, it is characterised in that:
Wherein, it is round and depth that one of them of the upper connecting rod and the lower link are equipped with shape at the rotating shaft position
Another of direction and shaft length direction recessed portion in the same direction, the upper connecting rod and the lower link are in the shaft
The protrusion that shape is ellipse and is embedded in the recessed portion is equipped at position,
The recess be equipped with multiple arc grooves being along the circumferential direction distributed, the shape of protrusion both ends part with
The groove is corresponding, after the upper connecting rod and the lower link are relatively rotated the position of the protrusion by
The groove limitation, to make the angle between the upper connecting rod and the lower link fixed and then complete to the strain sensing
The fixation of device.
3. double-connecting rod type sensor fixed mechanism according to claim 1, it is characterised in that:
Wherein, it is round and depth that one of them of the upper connecting rod and the lower link are equipped with shape at the rotating shaft position
Another of direction and shaft length direction recessed portion in the same direction, the upper connecting rod and the lower link are in the shaft
It is protrusion round and in the recessed portion that shape is equipped at position,
The recess is equipped with multiple the first ratchets being along the circumferential direction distributed, and is equipped on the outside of the protrusion multiple along circle
Second ratchet of circumferential direction distribution,
First ratchet is matched with second ratchet, so that after the upper connecting rod and the lower link relatively rotate
The fixation that angle between the two is fixed and then completion is to the strain transducer.
4. double-connecting rod type sensor fixed mechanism according to claim 1, it is characterised in that:
Wherein, the Weak link part is connecting rod or connection sheet made of plastics or rubber.
5. double-connecting rod type sensor fixed mechanism according to claim 1, it is characterised in that:
Wherein, the pedestal is metal base.
6. double-connecting rod type sensor fixed mechanism according to claim 1 or 5, it is characterised in that:
Wherein, the pedestal has a fixed area far from the side of the upper connecting rod, which is equipped with for will be described
The fixed adhesive-layer for being pasted onto the installed position of pedestal.
7. double-connecting rod type sensor fixed mechanism according to claim 6, it is characterised in that:
Wherein, release layer is additionally provided on the adhesive-layer.
8. a kind of bridge monitoring device, for being monitored to as the bridge to geodesic structure characterized by comprising
Strain transducer, for the carry out strain monitoring to geodesic structure, there are two the fixation holes penetrated through for tool；And
Double-connecting rod type sensor fixed mechanism is mounted on described to the installation site on geodesic structure for the strain transducer
Place,
Wherein, the double-connecting rod type sensor fixed mechanism is double-connecting rod type sensor of any of claims 1-7
Fixed mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016319.6A CN109540432A (en) | 2019-01-08 | 2019-01-08 | Double-connecting rod type sensor fixed mechanism and bridge monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016319.6A CN109540432A (en) | 2019-01-08 | 2019-01-08 | Double-connecting rod type sensor fixed mechanism and bridge monitoring device |
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| CN109540432A true CN109540432A (en) | 2019-03-29 |
Family
ID=65834383
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| CN201910016319.6A Pending CN109540432A (en) | 2019-01-08 | 2019-01-08 | Double-connecting rod type sensor fixed mechanism and bridge monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780792A (en) * | 2020-06-06 | 2020-10-16 | 河南交院工程技术有限公司 | Method for mounting measuring piece for bridge detection |
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