CN212228088U

CN212228088U - Sensor and sensor support thereof

Info

Publication number: CN212228088U
Application number: CN202021021775.4U
Authority: CN
Inventors: 杨俊鹏; 樊东方; 翟公坤; 王礼友; 储卫玲; 刘艳娜; 黄盖; 钟明亮; 王琼
Original assignee: Henan Niupa Institute of Mechanical Engineering; Henan Jiaoyuan Engineering Technology Co Ltd
Current assignee: Henan Niupa Institute of Mechanical Engineering; Henan Jiaoyuan Engineering Technology Co Ltd
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2020-12-25
Anticipated expiration: 2030-06-06

Abstract

The invention relates to a sensor support which comprises a support body, wherein the upper end of the support body is provided with an adhesive connecting surface for adhesive connection with a measured part, the upper end of the support body is also provided with a glue storage structure, the glue storage structure is provided with a pierceable membrane, a pricker is arranged on the support body and positioned on the upper side of the pierceable membrane, the upper end of the pricker is provided with a pricker pushing surface for pushing and matching with the measured part, the pricker is provided with a high position enabling the pricker pushing surface to be higher than the adhesive connecting surface and a low position enabling the height to be lower than the high position, and the pricker punctures the pierceable membrane to enable glue solution to flow to the adhesive connecting surface in the process of moving from. The invention solves the technical problem that manual gluing wastes time and labor in the prior art.

Description

Sensor and sensor support thereof

Technical Field

The utility model relates to a sensor and sensor support thereof among the bridge performance detection area.

Background

Newly-built bridge and the bridge after having carried out reinforcement or reconstruction, whether normal operating condition and bearing capacity of bridge structures meet the design requirement can be examined through the load test.

It is common practice to pass a vehicle under a certain load through a bridge and then measure the strain, deflection and inclination deformation of the bridge according to corresponding sensors on the bridge. For example, for strain measurement, a surface sensor is fixed on the bottom surface of a beam, wherein the sensor is matched with the beam as shown in fig. 1, the sensor comprises two fixing legs 2 which are independently arranged, fixing holes for the corresponding fixing legs to pass through are respectively arranged on the body of a strain gauge 3, during specific operation, a worker is lifted to the lower side of the beam body 1 through a lifting machine, the worker measures the distance between the two fixing legs 2 on the bottom surface of the beam, then the fixing legs are fixedly bonded on the bottom surface of the beam, finally the strain gauge 3 is sleeved on the fixing legs, and the sensor is fixed on the supporting legs by screwing nuts 4 on screw rods 5 of the fixing legs. When the beam deforms due to a load, the distance between the two legs changes, and the sensor measures the amount of change.

And naturally, when the inclination angle of the bridge needs to be measured, the inclination angle sensor is fixedly bonded at the bottom of the beam body. That is to say, the fixed sensor that all needs of various sensors is fixed with the roof beam body bottom surface bonding, among the prior art, during the bonding, need artifical rubber coating, artifical rubber coating just need lift personnel to the roof beam body bottom through elevating system, then artifical at roof beam body bottom surface rubber coating, fix corresponding sensor support again and bond in the roof beam body bottom, the rubber coating process in operating personnel high altitude, waste time and energy, and because there is the existence of this rubber coating step, also make the process of sensor installation must realize through personnel's operation, under the operating mode that is water to some roof beam body lower parts, because can't set up personnel climbing mechanism, consequently just can't detect corresponding bridge.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sensor support to solve the technical problems of time and labor waste caused by manual gluing in the prior art; an object of the utility model is also to provide an use sensor of this sensor support.

For solving the technical problem, the utility model discloses well sensor support's technical scheme as follows:

a sensor support comprises a support body, wherein the upper end of the support body is provided with an adhesive connecting surface which is used for being adhered and connected with a measured part, the upper end of the support body is further provided with a glue storage structure, the glue storage structure is provided with a pierceable membrane, a pricker is arranged on the support body and positioned on the upper side of the pierceable membrane, the upper end of the pricker is provided with a pricker pushing surface which is used for being pushed and matched with the measured part, the pricker is provided with a high position which enables the pricker pushing surface to be higher than the adhesive connecting surface and a low position which is lower than the high position, and the pricker moves from the high position to the low position in the process and punctures the pierceable.

And a supporting spring is arranged between the puncture needle and the support body.

The support body is provided with a spherical mounting groove, the glue storage structure is composed of a ball bag arranged in the spherical mounting groove, and the shell puncture membrane is a part of the ball bag.

The felting needle comprises a mounting plate and a needle body positioned on the lower side of the mounting plate, the felting needle pushing surface is formed by the upper plate surface of the mounting plate, the bonding connection surface is provided with a mounting plate loading groove for the installation of the mounting plate of the felting needle in the low position, and the upper plate surface of the mounting plate is flush with the bonding connection surface when the felting needle is in the low position.

The needle body is internally provided with a glue guiding channel used for guiding glue liquid in the glue storage structure to the upper plate surface of the mounting plate.

The support body is provided with a pushing eccentric wheel in a rotating mode, the support body is further provided with a driving motor for driving the pushing eccentric wheel to rotate, the pushing eccentric wheel is provided with a pushing surface which is used for being matched with a measured piece in a pushing mode so that a bonding connection surface is separated from the measured piece, and the pushing eccentric wheel is provided with a low position lower than the bonding connection surface and a high position higher than the bonding connection surface in the rotating process so that the pushing surface is matched with the measured piece in a pushing mode.

The utility model discloses well sensor's technical scheme does:

the sensor comprises a sensor support, wherein the sensor support comprises a support body, the upper end of the support body is provided with an adhesive connecting surface which is used for being adhered and connected with a measured part, the upper end of the support body is also provided with a glue storage structure, the glue storage structure is provided with a pierceable membrane, a pricker is arranged on the support body and positioned on the upper side of the pierceable membrane, the upper end of the pricker is provided with a pricker pushing surface which is used for being matched with the measured part in a pushing mode, the pricker is provided with a high position which enables the pricker pushing surface to be higher than the adhesive connecting surface and a low position which enables the height to be lower than the high position, and the pricker punctures the pierceable membrane to enable.

The utility model has the advantages that: in the process that the sensor support is close to a measured part, when the puncture needle is not contacted with the measured part, the puncture needle is in a high position, the penetrable membrane of the glue storage structure is not punctured, glue solution is stored in the glue storage structure, after the puncture needle pushing surface on the puncture needle is contacted with the measured part, the puncture needle moves from the high position to the low position under the pushing action of the measured part, the puncture needle punctures the penetrable membrane, the glue solution flows out from the glue storage structure to the bonding connecting surface, and the bonding connecting surface is in contact bonding with the measured part, namely manual glue coating is not needed, so that time and labor are saved.

Drawings

FIG. 1 is a schematic view of a strain gauge and a beam in the background art of the present invention;

FIG. 2 is a schematic diagram of a sensor according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic diagram of the cooperation between the sensor and the unmanned aerial vehicle according to the present invention;

FIG. 5 is a schematic view of the sensor and the beam body according to the present invention;

fig. 6 is a schematic view of the engagement between the puncture needle and the capsule according to the present invention.

Detailed Description

Examples of sensors are shown in FIGS. 2-6:

the sensor comprises a sensor support, the sensor support comprises a support body, the support body comprises a first leg part 1 and a second leg part 2 which are arranged from left to right, the first leg part 1 is matched with the second leg part 2 in a guiding and moving mode along the left-right direction, a guide hole 14 extending along the left-right direction in the guiding direction is formed in the specific second leg part, and the first leg part is provided with a guide rod 13 extending into the guide hole and in guiding sliding fit with the guide hole. The right end face of the first leg part forms a top abutting positioning face 20 which is used for abutting the matched top with the second leg part, a positioning spring 15 is arranged in the guide hole, the positioning spring 15 is an extension spring, the right end of the positioning spring is fixedly connected with the hole bottom of the guide hole, the left end of the positioning spring is fixedly connected with the guide rod 13, the positioning spring 15 exerts a right-facing pulling force on the first leg part 1, and it is guaranteed that the top abutting positioning face 20 on the first leg part 1 abuts against the second leg part 2 in a free state. A displacement measuring mechanism for measuring the relative displacement change of the first leg part and the second leg part is arranged between the first leg part 1 and the second leg part 2, in the embodiment, the displacement measuring mechanism is a stay cord displacement sensor 3, the displacement measuring mechanism comprises a flexible measuring part 4, one end of the flexible measuring part 4 is fixed on the first leg part, a measuring part winding drum 5 for winding the other end of the flexible measuring part is arranged on the second leg part, the displacement measuring mechanism further comprises a drum encoder for detecting the rotation of the measuring part winding drum, and a drum spring for tensioning the flexible measuring part is connected on the measuring part winding drum.

In order to adapt to the connection with the bottom surface of the beam body of the bridge, the upper end surfaces of the first leg part and the second leg part are adhesive connection surfaces 11 used for being adhesively connected with the measured piece. The upper ends of the first leg part and the second leg part are respectively provided with a glue storage structure, each leg part is provided with a plurality of spherical mounting grooves 30 which are arranged at intervals along the left-right direction, the glue storage structure is composed of a balloon 10 arranged in the spherical mounting grooves, and the upper end part of the glue storage structure forms a penetrable membrane 37. The support body is provided with a puncture needle 8 corresponding to the upper side of the pierceable membrane, the puncture needle comprises a mounting plate 35 and a needle body 36 positioned on the lower side of the mounting plate, a support spring 32 is arranged between the mounting plate 35 of the puncture needle and the support body, and the support spring 32 can ensure that the puncture needle 36 is not contacted with the pierceable membrane 37 when the mounting plate 35 is not contacted with a measured piece, so that the membrane can be pierced by mistake. The upper plate surface of the mounting plate forms a puncture needle pushing surface 34 used for being pushed and matched with a measured piece, the puncture needle 36 has a high position and a low position, the puncture needle pushing surface 34 is higher than the bonding connection surface 11, the height of the puncture needle is lower than the high position, and in the process that the puncture needle moves from the high position to the low position, the needle body 36 punctures the penetrable film to enable glue liquid to flow to the bonding connection surface 11. In this embodiment, the adhesive bonding surface 11 is provided with a mounting plate insertion groove 31 into which a mounting plate 35 of the lancet needle is fittingly inserted when the lancet needle is at a low position, and an upper plate surface of the mounting plate is flush with the adhesive bonding surface 11 when the lancet needle is at the low position. The glue guiding channel 33 used for guiding glue solution in the glue storage structure to the upper plate surface of the mounting plate is arranged in the needle body, and the glue guiding channel 33 in the embodiment is a vertical channel which penetrates through the pricking pin along the vertical direction.

The left shoulder part of the first leg part and the right shoulder part of the second leg part are provided with mounting grooves 7, pushing eccentric wheels 6 are further rotatably mounted in the mounting grooves 7 of the first leg part and the second leg part and driven by a motor, the pushing eccentric wheels are provided with pushing surfaces 21 used for being in pushing fit with a measured part to enable a bonding connection surface to be separated from the measured part, and the pushing eccentric wheels are provided with low positions lower than the bonding connection surface and high positions higher than the bonding connection surface in the rotating process to achieve pushing fit of the pushing surfaces and the measured part. The angle shown in fig. 3, the pushing eccentric wheel 6 on the first leg part rotates clockwise, and the pushing eccentric wheel on the second leg part rotates anticlockwise, so that the sensor can be pushed and separated from the lower side of the beam body. The spherical mounting groove is of a big-belly hole structure with a small upper part and a big lower part, so that after glue liquid is solidified, the solidified glue liquid, namely the bonding structure, is filled on the spherical mounting groove and the bonding connection surface, stopping force of the big-upper part and the small lower part is provided between the solidified glue liquid and the leg part besides bonding force, when the sensor is separated from the bottom of the beam body, the bonding structure is separated from the bottom of the beam along with the sensor, and the problem that the surface of the bottom of the beam is provided with the residual bonding structure and needs to be cleaned again in high-altitude operation is avoided.

The utility model provides a sensor is shown in fig. 2 when not being fixed in the roof beam body bottom, under positioning spring's effect, the top on first shank portion 1 right side is supported locating surface 20 top and is supported in the left end of second shank portion 2, is exactly displacement measurement mechanism's measurement zero point this moment, and positioning spring has also connected first shank portion and second shank portion into a whole.

In the actual bridge, the downside that has a lot of bridges all is water, can't set up elevating system, can't send the bottom of bridge to the staff, even can set up elevating system some places, high altitude construction also is a challenge to staff's psychology. The utility model discloses in order to thoroughly liberate the staff, all set the rubber coating of sensor to automatic mode with demolising fixedly, just so can accomplish the installation of sensor with the help of some climbing mechanism. For example, the sensor is fixed at the bottom of the beam 19 by the unmanned aerial vehicle 17, as shown in fig. 4, a support frame 16 is placed at the top of a housing 18 of the unmanned aerial vehicle, a positioning groove 22 is formed at the top of the support frame, the sensor is placed in the positioning groove 22, the unmanned aerial vehicle drives the whole sensor to fly upwards until the bonding connection surface is contacted with the bottom surface of the beam, in the process, the puncture needle moves from a high position to a low position, a needle body of the puncture needle punctures a pierceable membrane, the puncture needle enters a glue storage structure to extrude glue solution, most of the glue solution flows onto the bonding connection surface in four directions through a gap between the puncture needle and the bonding connection surface, a small part of the glue solution flows onto an upper plate surface of the mounting plate through a glue guide channel, when the mounting plate is completely immersed in the mounting groove, the upper plate surface of the mounting plate is flush with the bonding connection surface and, the bonding strength of the sensor support and the beam body is ensured.

The glue solution is preferably quick-drying glue, for the glue solution, the glue solution can reach 85% of the curing strength only by pushing the unmanned aerial vehicle for 5-30 seconds, and then the unmanned aerial vehicle can be evacuated and kept stand for one day to reach 100% of the curing strength of the glue solution. After a load is applied to the upper side of the bridge, the beam body deforms, the first leg portion and the second leg portion overcome the acting force of the positioning spring to generate relative displacement, and the stay rope displacement sensor measures the displacement value to obtain the strain of the beam body. After the detection, the motor drive pushes away the eccentric wheel and rotates, thereby the top pushes away the eccentric wheel and pushes away the separation that the roof beam body realized first shank portion, second shank portion and roof beam body, and the sensor drops, can catch the sensor through the string bag, prevents that the sensor from breaking, perhaps accepts the sensor with unmanned aerial vehicle earlier, pushes away the eccentric wheel and moves again, takes off the sensor by pushing up on the roof beam body.

In other embodiments of the present invention: the positioning spring can also be a pressure spring, and the pressure spring applies acting force towards the right direction to the first leg part, so that the propping positioning surface of the first leg part props against the second leg part in a natural state; the displacement measuring mechanism may not be a stay wire displacement sensor, for example, the displacement measuring mechanism is a laser displacement sensor disposed between the first leg portion and the second leg portion; the sensor can also be jacked to the bottom of the beam body through other jacking mechanisms, for example, the sensor is jacked to the bottom of the beam body through a lifting car; the positioning spring may also be replaced by a magnetic structure, for example, the magnetic mechanism includes a first magnetic body disposed on the first leg portion and a second magnetic body disposed on the second leg portion, and the first magnetic body and the second magnetic body attract each other, so that the abutting positioning surface of the first leg portion always abuts against the second leg portion before the first leg portion is not fixed; the pushing eccentric wheel can also not be arranged in the mounting groove, for example, the pushing eccentric wheel is arranged on the side surface of the support body; the sensor may not be a strain sensor, such as a tilt sensor, a displacement sensor, or other types of sensors; the support spring is not needed, and the needle body of the puncture needle can be adhered to the capsule storage body or the puncture needle is assembled on the support body in a guiding and moving manner along the up-down direction; the glue storage structure can be not a capsule storage structure, for example, the capsule storage structure comprises a glue storage groove arranged on the support body, and the puncture membrane is fixed at the notch position of the glue storage groove; the needle body of the puncture needle can not extend into the storage capsule, the storage capsule can be an elastic capsule, the glue solution in the storage capsule has certain pressure, and after the storage capsule is punctured, the glue solution is sprayed out of the storage capsule to the peripheral bonding connection surface; the upper plate surface of the mounting plate may not be flush with the bonding connection surface, for example, higher than the bonding connection surface or lower than the bonding connection surface.

Embodiments of the sensor mount are shown in fig. 2-6, and the specific structure of the sensor mount is the same as that of the sensor mount described in the above sensor embodiments, and will not be described in detail here.

Claims

1. The utility model provides a sensor support, includes the support body, support body upper end has and is used for connecting the face, its characterized in that with bonding that links to each other by measurand bonding: the support body is provided with a support body, the support body is provided with a glue storage structure, the glue storage structure is provided with a pierceable membrane, a puncture needle is arranged on the support body and above the pierceable membrane, the upper end of the puncture needle is provided with a puncture needle pushing surface used for being in pushing fit with a measured piece, the puncture needle is provided with a high position enabling the puncture needle pushing surface to be higher than the bonding connection surface and a low position enabling the puncture needle pushing surface to be lower than the high position, and in the process that the puncture needle moves from the high position to the low position, the pierceable membrane is punctured to enable glue liquid to flow to the.

2. The sensor holder according to claim 1, wherein: and a supporting spring is arranged between the puncture needle and the support body.

3. The sensor holder according to claim 1, wherein: the support body is provided with a spherical mounting groove, the glue storage structure is composed of a balloon arranged in the spherical mounting groove, and the penetrable film is a part of the balloon.

4. The sensor holder according to claim 1, wherein: the felting needle comprises a mounting plate and a needle body positioned on the lower side of the mounting plate, the felting needle pushing surface is formed by the upper plate surface of the mounting plate, the bonding connection surface is provided with a mounting plate loading groove for the installation of the mounting plate of the felting needle in the low position, and the upper plate surface of the mounting plate is flush with the bonding connection surface when the felting needle is in the low position.

5. The sensor holder according to claim 4, wherein: the needle body is internally provided with a glue guiding channel used for guiding glue liquid in the glue storage structure to the upper plate surface of the mounting plate.

6. The sensor support according to any one of claims 1 to 5, wherein: the support body is provided with a pushing eccentric wheel in a rotating mode, the support body is further provided with a driving motor for driving the pushing eccentric wheel to rotate, the pushing eccentric wheel is provided with a pushing surface which is used for being matched with a measured piece in a pushing mode so that a bonding connection surface is separated from the measured piece, and the pushing eccentric wheel is provided with a low position lower than the bonding connection surface and a high position higher than the bonding connection surface in the rotating process so that the pushing surface is matched with the measured piece in a pushing mode.

7. A sensor, characterized by: comprising a sensor support according to any one of claims 1 to 6.