CN214407408U - Tunnel lining concrete reinforcing bar protective layer detection device - Google Patents
Tunnel lining concrete reinforcing bar protective layer detection device Download PDFInfo
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- CN214407408U CN214407408U CN202120528963.4U CN202120528963U CN214407408U CN 214407408 U CN214407408 U CN 214407408U CN 202120528963 U CN202120528963 U CN 202120528963U CN 214407408 U CN214407408 U CN 214407408U
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- lining concrete
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- detection device
- steel bar
- elastic telescopic
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Abstract
The utility model provides a tunnel lining concrete steel bar protective layer detection device belongs to tunnel construction equipment technical field, including elastic telescopic rod, angle detection module, action wheel, stroke measurement module, force sensor and magnetism piece. The driving wheel of the utility model can directly move along the surface of the lining concrete, so that the tension sensor can obtain real-time stress data, which is beneficial to more comprehensively detecting the thickness of the steel bar protection layer of the lining concrete; meanwhile, an operator can directly hold the elastic telescopic rod on the ground to detect the arch crown and the arch wall, a crawling ladder does not need to be built, high-altitude operation is not carried out, and the safety is improved.
Description
Technical Field
The utility model belongs to the technical field of tunnel construction equipment, more specifically say, relate to a tunnel lining concrete reinforcing bar protective layer detection device.
Background
The reinforcing steel bar protection layer refers to the distance from the outer edge of the outermost stressed main reinforcing steel bar to the surface of concrete. The main effect of reinforcing bar protective layer is that the protection reinforcing bar is not corroded (water content in the air, the higher protective layer that needs of carbon dioxide content in the air is thicker), also can its collocation bonding anchor effect simultaneously (the reinforcing bar will pass to the concrete through the protective layer to even power, and the protective layer thickness is not enough, can appear the crack too early, and the reinforcing bar can not fully atress, and simultaneously water and carbon dioxide can invade in a large number again, corrosion reinforcing bar).
The tunnel is in a humid environment for a long time, so that the thickness of a steel bar protective layer of lining concrete is strictly required, the thickness of the steel bar protective layer is required to be controlled in pouring construction, and the thickness of the steel bar protective layer is required to be detected after pouring is finished, but the conventional detection method adopts a detection instrument to perform sampling detection according to measuring points, so that the surface of the concrete is difficult to detect comprehensively, the detection result is something and cannot truly reflect the thickness of the integral steel bar protective layer, meanwhile, the conventional detection instrument basically adopts an ultrasonic method to detect the steel bar protective layer, but cracks and aggregates in the concrete have certain influence on the detection result, and larger detection errors are easily caused; in addition, the tunnel has a relatively high arch crown and other parts, so that the measurement needs to be carried out in a manner of erecting a ladder and the like during detection, and the method has certain danger and relatively low efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tunnel lining concrete steel bar protection layer detection device to solve the above-mentioned technical problem who exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the detection device comprises an elastic telescopic rod, an angle detection module, a driving wheel, a stroke measurement module, a tension sensor and a magnetic block, wherein the elastic telescopic rod has the telescopic freedom degree along the length direction and has the stretching elasticity; the angle detection module is arranged on the elastic telescopic rod and used for detecting the inclination angle of the elastic telescopic rod; the driving wheel is arranged at one end of the elastic telescopic rod and is used for driving on the surface of the lining concrete; the stroke measuring module is arranged at one end of the elastic telescopic rod and used for detecting the travelling distance of the travelling wheel; one end of the tension sensor is connected with one end of the elastic telescopic rod, which is provided with the driving wheel, and the tension sensor is arranged along the length direction of the elastic telescopic rod; the magnetic block is connected with the other end of the tension sensor and used for generating adsorption force between the magnetic block and reinforcing steel bars in lining concrete, and the tension sensor detects stress of the magnetic block when the driving wheel moves forwards.
In an embodiment of the present invention, the angle detection module, the stroke measurement module and the tension sensor are all electronic components; the tunnel lining concrete reinforcing steel bar protection layer detection device further comprises a data processing module, a data storage module and a display module, wherein the data processing module is electrically connected with the angle detection module, the stroke measurement module, the tension sensor, the data storage module and the display module respectively, and is used for storing data detected by the angle detection module, the stroke measurement module and the tension sensor in the data storage module and displaying the data on the display module.
The utility model discloses an in one embodiment, tunnel lining concrete reinforcement protective layer detection device still includes the platform truck, and the elasticity telescopic link rotates with the platform truck to be connected, and fixed through fastening components.
In one embodiment of the present invention, the elastic telescopic rod comprises a rod body, an elastic telescopic joint, a rotating joint and a mounting body, wherein the rotating joint is arranged at one end of the rod body and is used for connecting with the trolley so as to enable the rod body to rotate; one end of the elastic expansion joint is connected with the other end of the rod body, has the degree of freedom of expansion along the length direction of the rod body and has elasticity for keeping the expansion; the mounting body is connected with the other end of the elastic expansion joint, and the angle detection module, the driving wheel, the stroke measurement module and the tension sensor are all arranged on the mounting body.
In an embodiment of the present invention, the elastic expansion joint includes an outer sleeve, an inner tube, and a spring, the outer sleeve is connected to the mounting body, the inner tube is slidably disposed in the outer sleeve, and the spring is disposed in the outer sleeve and abuts against the bottom of the outer sleeve and the end of the inner tube with the two ends respectively to provide elastic force.
In one embodiment of the present invention, the rotary joint comprises two rotary discs, a fastening bolt and a connecting member; the two rotating discs are arranged in parallel, teeth which are arranged in the radial direction and matched with each other are arranged on one side, which is contacted with each other, of the two rotating discs, through holes for the fastening bolts to penetrate through are formed in the middle of the two rotating discs, the two rotating discs rotate by loosening the fastening bolts, and are fastened by the fastening bolts and meshed with the teeth to form relative fixation; one of the rotating discs is connected with the rod body, the other rotating disc is connected with the connecting piece, and the connecting piece is used for being connected with the trolley.
The utility model discloses an in the embodiment, the installation body passes through rotation axis connection with the action wheel, and axis of rotation one end is connected, and a plurality of bumps of middle part hoop equipartition with action wheel fixed connection, the other end rotate with the installation body, and stroke measurement module includes electronic counter, and electronic counter is fixed to be set up on the installation body, and correspond the setting with the bump, be used for when the action wheel drives the axis of rotation and rotates, count the bump of process.
In an embodiment of the present invention, the angle detecting module includes a weight line having one end connected to the elastic telescopic rod.
In one embodiment of the present invention, the outer edge of the driving wheel has a circular cross-sectional structure or an elliptical cross-sectional structure, and the surface of the driving wheel is provided with anti-slip lines.
In an embodiment of the present invention, the magnetic block is detachably connected to the tension sensor.
The utility model provides a tunnel lining concrete steel bar protection layer detection device's beneficial effect lies in: compared with the prior art, the utility model discloses when using, push up the action wheel on the lining concrete surface through the elasticity telescopic link, go forward through elasticity telescopic link drive action wheel simultaneously, because magnetism produces the adsorption affinity between the reinforcing bar inside magnetic block and the lining concrete in the advancing process, detect the atress of magnetic block through force transducer, and obtain the inclination of elasticity telescopic link according to angle detection module, and then obtain force transducer's inclination, can eliminate the error that magnetic block gravity brought the data that force transducer detected under different angles through this inclination subsequently, guarantee the accuracy nature of testing result; the driving wheels can directly move along the surface of the lining concrete, so that the tension sensor can obtain real-time stress data, and the thickness of the steel bar protection layer of the lining concrete can be detected more comprehensively; meanwhile, an operator can directly hold the elastic telescopic rod on the ground to detect the arch crown and the arch wall, a crawling ladder does not need to be built, high-altitude operation is not carried out, and the safety is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of a tunnel lining concrete reinforcing bar protection layer detection device provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a tunnel lining concrete reinforcing steel bar protection layer detection device provided by the embodiment of the present invention in a use state;
fig. 3 is the embodiment of the utility model provides a tunnel lining concrete steel bar protection layer detection device's automatically controlled part's schematic diagram.
Wherein the reference numerals in the figures are as follows:
10. an elastic telescopic rod; 11. a rod body; 12. an elastic expansion joint; 13. a rotating joint; 14. an installation body;
20. an angle detection module; 30. a running wheel; 31. a rotating shaft; 32. salient points;
40. a travel measurement module; 50. a tension sensor; 60. a magnetic block; 70. a trolley;
81. a data processing module; 82. a data storage module; 83. a display module; 84. a data line;
90. and (6) lining the tunnel.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It is right now the utility model provides a tunnel lining concrete reinforcing bar protective layer detection device explains.
Referring to fig. 1 and 2 together, a tunnel lining concrete reinforcing bar protection layer detection device according to a first embodiment of the present invention includes an elastic telescopic rod 10, an angle detection module 20, a driving wheel 30, a stroke measurement module 40, a tension sensor 50, and a magnetic block 60, wherein the elastic telescopic rod 10 has a telescopic degree of freedom along a length direction and has an elasticity of elongation; the angle detection module 20 is arranged on the elastic telescopic rod 10 and used for detecting the inclination angle of the elastic telescopic rod 10; the driving wheel 30 is arranged at one end of the elastic telescopic rod 10 and is used for driving on the surface of the lining concrete; the stroke measuring module 40 is arranged at one end of the elastic telescopic rod 10 and used for detecting the travel distance of the driving wheel 30; one end of the tension sensor 50 is connected with one end of the elastic telescopic rod 10 provided with the driving wheel 30 and is arranged along the length direction of the elastic telescopic rod 10; the magnetic block 60 is connected to the other end of the tension sensor 50, and is used for generating an adsorption force with the steel bar in the lining concrete, and the tension sensor 50 detects the stress of the magnetic block 60 when the traveling wheel 30 travels.
The utility model provides a tunnel lining concrete reinforcing bar protective layer detection device, compared with the prior art, when using, push up driving wheel 30 on lining concrete surface through elastic telescopic link 10, go forward through elastic telescopic link 10 drive driving wheel 30 simultaneously, in the course of going because magnetism produces the adsorption affinity between the reinforcing bar inside magnetic block 60 and the lining concrete, detect the atress of magnetic block 60 through tension sensor 50, and obtain the inclination of elastic telescopic link 10 according to angle detection module 20, and then obtain tension sensor 50's inclination, can eliminate the error that magnetic block 60 gravity brought the data that tension sensor 50 detected under different angles through this inclination, guarantee the accuracy nature of testing result; moreover, the driving wheel 30 can directly move along the surface of the lining concrete, so that the tension sensor 50 can obtain real-time stress data, and the detection of the thickness of the steel bar protection layer of the lining concrete can be more comprehensively facilitated; meanwhile, an operator can directly hold the elastic telescopic rod 10 on the ground to detect the arch crown and the arch wall, a crawling ladder does not need to be erected, high-altitude operation is not carried out, and the safety and the operation efficiency are improved.
Further, referring to fig. 1 and fig. 3, the present invention provides a first embodiment, which is as follows:
the angle detection module 20, the stroke measurement module 40 and the tension sensor 50 are all electronic components; the tunnel lining concrete reinforcing steel bar protection layer detection device further comprises a data processing module 81, a data storage module 82 and a display module 83, wherein the data processing module 81 is respectively electrically connected with the angle detection module 20, the stroke measurement module 40, the tension sensor 50, the data storage module 82 and the display module 83, and is used for storing data detected by the angle detection module 20, the stroke measurement module 40 and the tension sensor 50 in the data storage module 82 and displaying the data on the display module 83.
The data processing module 81 can automatically calculate the data detected by the angle detection module 20, the stroke measurement module 40 and the tension sensor 50, store the data in the data storage module 82 and display the data on the display module 83, so that the working efficiency is improved.
Further, referring to fig. 1 and fig. 2, the present invention provides a first embodiment, which is as follows:
the tunnel lining concrete reinforcing steel bar protection layer detection device further comprises a trolley 70, and the elastic telescopic rod 10 is rotatably connected with the trolley 70 and fixed through a fastening assembly.
The carriage 70 may be a carriage device such as a pouring carriage or a maintenance carriage used in tunnel construction, or may be another vehicle device capable of stably traveling. The elastic expansion joint 12 is arranged on the pouring trolley, so that on one hand, the manual movement of an operator can be avoided, the advancing stability is improved, and the detection accuracy is further improved; on the other hand, can set up the foretell tunnel lining concrete steel bar protective layer detection device of multiunit on the different angles of pouring the platform truck to go to detect comprehensively the tunnel through once, improve detection efficiency.
The elastic telescopic rod 10 comprises a rod body 11, an elastic telescopic joint 12, a rotating joint 13 and a mounting body 14, wherein the rotating joint 13 is arranged at one end of the rod body 11 and is used for being connected with the trolley 70 so as to enable the rod body 11 to rotate; one end of the elastic expansion joint 12 is connected with the other end of the rod body 11, has the degree of freedom of expansion along the length direction of the rod body 11, and has elasticity for keeping extension; the mounting body 14 is connected with the other end of the elastic expansion joint 12, and the angle detection module 20, the traveling wheel 30, the stroke measurement module 40 and the tension sensor 50 are all arranged on the mounting body 14.
The elastic expansion joint 12 comprises an outer sleeve, an inner tube and a spring, the outer sleeve is connected with the mounting body 14, the inner tube is arranged in the outer sleeve in a sliding mode, and the spring is arranged in the outer sleeve and is abutted to the bottom of the outer sleeve and the end of the inner tube at two ends respectively so as to provide elastic force.
The rotating joint 13 comprises two rotating discs, a fastening bolt and a connecting piece; the two rotating discs are arranged in parallel, teeth which are arranged in the radial direction and matched with each other are arranged on one side, which is contacted with each other, of the two rotating discs, through holes for the fastening bolts to penetrate through are formed in the middle of the two rotating discs, the two rotating discs rotate by loosening the fastening bolts, and are fastened by the fastening bolts and meshed with the teeth to form relative fixation; one of the rotating discs is connected with the rod body 11, the other rotating disc is connected with a connecting piece, and the connecting piece is used for being connected with the trolley.
The installation body 14 passes through the axis of rotation 31 with the action wheel 30 and is connected, and axis of rotation 31 one end and action wheel 30 fixed connection, the other end rotate with the installation body 14 and be connected, and a plurality of bumps 32 of middle part hoop equipartition, and stroke measurement module 40 includes electronic counter, and electronic counter is fixed to be set up on the installation body 14, and correspond the setting with bump 32, be used for when the action wheel 30 drives axis of rotation 31 and rotates, count the bump 32 of process.
Further, referring to fig. 1, the present invention provides a specific embodiment based on the first embodiment as follows:
the angle detection module 20 includes a weight line having one end connected to the elastic telescopic rod 10.
The outer edge of the movable wheel 30 has a circular or elliptical cross-section structure, and the surface of the outer edge is provided with anti-slip threads so as to keep the movable wheel 30 in a synchronous rotation state all the time during the traveling process.
The magnetic block 60 is detachably connected with the tension sensor 50, so that the magnetic block 60 with different magnetism can be replaced according to the thickness requirement of different steel bar protection layers. The magnetic blocks 60 may be electromagnets or permanent magnets.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a tunnel lining concrete steel bar protective layer detection device which characterized in that includes:
an elastic telescopic rod having a degree of freedom of extension in a length direction and having elasticity of extension;
the angle detection module is arranged on the elastic telescopic rod and used for detecting the inclination angle of the elastic telescopic rod;
the driving wheel is arranged at one end of the elastic telescopic rod and is used for driving on the surface of the lining concrete;
the stroke measuring module is arranged at one end of the elastic telescopic rod and used for detecting the travelling distance of the travelling wheel;
one end of the tension sensor is connected with one end of the elastic telescopic rod, which is provided with the driving wheel, and the tension sensor is arranged along the length direction of the elastic telescopic rod; and
the magnetic block is connected with the other end of the tension sensor and used for generating adsorption force between the magnetic block and a steel bar in lining concrete, and the tension sensor detects the stress of the magnetic block when the driving wheel travels.
2. The tunnel lining concrete steel bar protection layer detection device of claim 1, characterized in that: the angle detection module, the stroke measurement module and the tension sensor are all electronic elements; the tunnel lining concrete reinforcing steel bar protection layer detection device further comprises a data processing module, a data storage module and a display module, wherein the data processing module is respectively electrically connected with the angle detection module, the stroke measurement module, the tension sensor, the data storage module and the display module, and is used for storing data detected by the angle detection module, the stroke measurement module and the tension sensor in the data storage module and displaying the data on the display module.
3. The tunnel lining concrete steel bar protection layer detection device of claim 1, characterized in that: the tunnel lining concrete reinforcing bar protective layer detection device further comprises a trolley, and the elastic telescopic rod is connected with the trolley in a rotating mode and is fixed through a fastening assembly.
4. A tunnel lining concrete reinforcing bar protective layer detection apparatus as claimed in claim 1 or 3, wherein: the elastic telescopic rod comprises a rod body, an elastic telescopic joint, a rotating joint and an installation body, wherein the rotating joint is arranged at one end of the rod body and is used for being connected with the trolley so as to enable the rod body to rotate; one end of the elastic expansion joint is connected with the other end of the rod body, has the degree of freedom of expansion along the length direction of the rod body and has elasticity for keeping the expansion; the mounting body with the elasticity telescopic joint other end is connected, just angle detection module, the action wheel, stroke measurement module and tension sensor all establish on the mounting body.
5. The tunnel lining concrete steel bar protection layer detection device of claim 4, wherein: the elastic expansion joint comprises an outer sleeve, an inner tube and a spring, the outer sleeve is connected with the installation body, the inner tube is arranged in the outer sleeve in a sliding mode, and the spring is arranged in the outer sleeve and is respectively abutted to the bottom of the outer sleeve and the end of the inner tube at two ends to provide elastic force.
6. The tunnel lining concrete steel bar protection layer detection device of claim 4, wherein: the rotating joint comprises two rotating discs, a fastening bolt and a connecting piece; the two rotating discs are arranged in parallel, teeth which are arranged in the radial direction and matched with each other are arranged on one side, which is in contact with each other, of the two rotating discs, through holes for the fastening bolts to penetrate through are formed in the middle of the two rotating discs, the two rotating discs rotate by loosening the fastening bolts, and are fastened by the fastening bolts and are meshed with the teeth to form relative fixation; one of them the rolling disc with the body of rod, another the rolling disc with the connecting piece is connected, the connecting piece is used for being connected with the platform truck.
7. The tunnel lining concrete steel bar protection layer detection device of claim 4, wherein: the installation body with the action wheel passes through rotation axis connection, axis of rotation one end with action wheel fixed connection, the other end with the installation body rotates to connect, and a plurality of bumps of middle part hoop equipartition, stroke measurement module includes electronic counter, electronic counter is fixed to be set up on the installation body, and with the bump corresponds the setting, is used for the action wheel drives when the axis of rotation rotates, counts the bump of process.
8. The tunnel lining concrete steel bar protection layer detection device of claim 1, characterized in that: the angle detection module comprises a heavy hammer line, one end of the heavy hammer line is connected with the elastic telescopic rod.
9. The tunnel lining concrete steel bar protection layer detection device of claim 1, characterized in that: the outer edge of the driving wheel is of a circular section structure or an elliptical section structure, and the surface of the driving wheel is provided with anti-skid grains.
10. The tunnel lining concrete steel bar protection layer detection device of claim 1, characterized in that: the magnetic block is detachably connected with the tension sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120528963.4U CN214407408U (en) | 2021-03-11 | 2021-03-11 | Tunnel lining concrete reinforcing bar protective layer detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120528963.4U CN214407408U (en) | 2021-03-11 | 2021-03-11 | Tunnel lining concrete reinforcing bar protective layer detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214407408U true CN214407408U (en) | 2021-10-15 |
Family
ID=78029044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120528963.4U Expired - Fee Related CN214407408U (en) | 2021-03-11 | 2021-03-11 | Tunnel lining concrete reinforcing bar protective layer detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214407408U (en) |
-
2021
- 2021-03-11 CN CN202120528963.4U patent/CN214407408U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |