Tunnel vault concrete pouring quality on-site detection equipment

Abstract

The utility model provides tunnel vault concrete pouring quality on-site detection equipment which comprises a walking lifting platform, a turning adjusting mechanism and a detection mechanism, and the walking lifting platform comprises a shear fork type lifting mechanism and walking wheels; the turning adjusting mechanism comprises a supporting base, a turning assembly and a bearing plate. The detection mechanism comprises a pneumatic hammer sensor and a controller, the pneumatic hammer and the sensor are connected to the bearing plate, and the controller is electrically connected with the pneumatic hammer and the sensor. According to the tunnel vault concrete pouring quality on-site detection equipment provided by the utility model, the height and angle of the equipment are adjusted by utilizing the scissor-type lifting mechanism and the turning assembly, the surface of the vault is impacted by the pneumatic hammer, a vibration signal is acquired by utilizing the sensor and is transmitted to the controller, and the controller carries out data analysis and gives out an evaluation result. The equipment overcomes the defects that in an existing detection method, a lossless method is complex in data processing, a lossy method is prone to causing vault damage and the like, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction quality inspection, and particularly relates to an on-site inspection device for the concrete pouring quality of a tunnel crown. Background Art

[0002] The tunnel lining project is a key link to ensure the safety and stability of the tunnel. The quality of the tunnel lining pouring directly affects the safety of the entire tunnel project. If the pouring quality is unqualified, serious consequences may occur, such as safety accidents like collapse. Therefore, on-site inspection of the tunnel lining pouring quality is an essential link, which can timely detect and correct engineering quality problems, ensure that the engineering quality meets the design standards, and thus guarantee the safe operation of the tunnel and the life and property safety of users.

[0003] In the prior art, common inspection methods include ground penetrating radar method, ultrasonic method, core drilling sampling test method, etc. The above methods have been widely used in engineering. However, the ground penetrating radar method and ultrasonic method have disadvantages such as complex data processing and interpretation and being easily affected by subjectivity; the core drilling sampling test method belongs to a destructive test, and after blocking the sampling area, there are still potential hazards such as water seepage. Content of the Utility Model

[0004] The embodiment of the utility model provides an on-site inspection device for the concrete pouring quality of a tunnel crown, which can safely and quickly inspect the concrete pouring quality of the tunnel crown from different heights and angles, overcomes the defects of complex data processing in non-destructive methods and easy damage to the crown in destructive methods in the existing inspection methods, and improves the inspection efficiency and accuracy.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide an on-site inspection device for the concrete pouring quality of a tunnel crown, including a walking and lifting platform, a steering and adjusting mechanism, and an inspection mechanism. The walking and lifting platform includes a scissor lifting mechanism capable of lifting and moving and walking wheels connected to the bottom of the scissor lifting mechanism; the steering and adjusting mechanism includes a support seat connected to the scissor lifting mechanism, a steering component hinged to the support seat, and a supporting plate hinged above the steering component. The steering component is used to drive the supporting plate to swing vertically; the inspection mechanism includes a pneumatic hammer, a sensor, and a controller. The pneumatic hammer and the sensor are respectively connected to the supporting plate, and the controller is electrically connected to the pneumatic hammer and the sensor respectively. The pneumatic hammer is used to impact the crown surface of the measured area, and the sensor is used to collect vibration signals and transmit the vibration signals to the controller.

[0006] As another embodiment of the present utility model, the pneumatic hammer is connected to the supporting plate through a gantry frame. Two support rods respectively extending radially outward are connected to the outer periphery of the pneumatic hammer. Mounting holes for the support rods to pass through are provided on both side walls of the gantry frame. A clamping sleeve for clamping the outer periphery of the pneumatic hammer is connected to the top plate of the gantry frame.

[0007] As another embodiment of the present utility model, a plurality of mounting holes are provided on both side walls of the gantry frame, and the plurality of mounting holes are arranged at intervals in the up and down direction; a positioning nut is threadedly connected to the outer end of the support rod, and the positioning nut abuts against the outer side wall of the gantry frame.

[0008] As another embodiment of the present utility model, the clamping sleeve includes two semi - rings respectively hinged to the top plate of the gantry frame. The main axes of the two semi - rings both extend in the up and down direction, and the two semi - rings are connected by a fastening component.

[0009] As another embodiment of the present utility model, the sensor is connected to the supporting plate through an adjusting bracket. The adjusting bracket includes a top - supporting rod and a telescopic sleeve rod. The inner end of the top - supporting rod is hinged to the supporting plate, the outer end of the top - supporting rod is hinged with a supporting seat, the sensor is connected to the supporting seat, the fixed end of the telescopic sleeve rod is hinged to the supporting plate, the outer extending end of the telescopic sleeve rod is hinged to the outer periphery of the top - supporting rod, and the telescopic sleeve rod is used to drive the top - supporting rod and the supporting seat to swing vertically.

[0010] As another embodiment of the present utility model, the top - supporting rod includes an outer sleeve and an outer extending rod slidably connected inside the outer sleeve. The outer sleeve is hinged to the supporting plate through a support arm. The outer extending end of the telescopic sleeve rod is hinged to the peripheral wall of the outer sleeve. The supporting seat is hinged to the outer extending end of the outer extending rod. The outer extending rod can slide outward along the outer sleeve so that the supporting seat abuts against the arch top surface.

[0011] As another embodiment of the present utility model, there are four groups of sensors and adjusting brackets respectively, and the four groups of sensors and adjusting brackets are respectively arranged near the four corners of the supporting plate.

[0012] As another embodiment of the present utility model, the direction - changing component includes a first direction - changing rod and a second direction - changing rod. The lower end of the first direction - changing rod is hinged to the supporting seat through a first hinge seat. The upper end of the first direction - changing rod is hinged to the lower end of the second direction - changing rod through a second hinge seat. The upper end of the second direction - changing rod is hinged to the bottom surface of the supporting plate through a third hinge seat. Built - in drive motors are provided in the first hinge seat, the second hinge seat, and the third hinge seat; wherein, the first direction - changing rod is used to drive the second direction - changing rod and the supporting plate to swing vertically, the second direction - changing rod is used to drive the supporting plate to swing vertically, and the swinging direction of the second direction - changing rod is perpendicular to the swinging direction of the first direction - changing rod.

[0013] As another embodiment of the present utility model, the scissor lift mechanism includes a base, a scissor brace assembly connected above the base, and a lifting support plate connected above the scissor brace assembly. A safety fence that extends circumferentially and is disposed near the periphery of the lifting support plate is provided above the lifting support plate. Travel wheels are connected to the base, and support seats are connected to the lifting support plate.

[0014] As another embodiment of the present utility model, a plurality of support cylinders are connected to the bottom of the base, and the support cylinders have support ends that can extend downward to support on the ground.

[0015] The beneficial effects of a on-site inspection device for the quality of tunnel arch concrete pouring provided by the present utility model are as follows: Compared with the prior art, for a on-site inspection device for the quality of tunnel arch concrete pouring of the present utility model, the device is moved to the vicinity of the area to be measured through the travel wheels, the scissor lift mechanism is activated to adjust the overall height of the device, and then the orientation of the support plate is adjusted through the steering assembly so that the working end of the pneumatic hammer and the sensor can be close to the arch surface of the area to be measured at different angles. The controller makes the pneumatic hammer impact the arch surface at a certain speed, and at the same time, the sensor collects the vibration signal generated when the arch is impacted and transmits the vibration signal to the controller. The controller performs data analysis and processing based on the vibration signal and quickly gives the evaluation result of the pouring quality. The above device can safely and quickly inspect the quality of tunnel arch concrete pouring from different heights and different angles, overcomes the defects in the prior inspection methods such as complex data processing in non-destructive methods and easy damage to the arch in destructive methods, and improves the inspection efficiency and accuracy. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the on-site inspection device for the quality of tunnel arch concrete pouring provided by the embodiment of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the inspection mechanism and the support plate provided by the embodiment of the present utility model;

[0019] Figure 3 It is a top view structural diagram of the pneumatic hammer and the gantry provided by the embodiment of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the steering adjustment mechanism provided by the embodiment of the present utility model.

[0021] Among them, the reference numerals in the figures are as follows:

[0022] 1. Walking and lifting platform; 11. Base; 12. Walking wheels; 13. Scissor-type lifting mechanism; 131. Scissor bracing assembly; 132. Lifting support plate; 133. Safety fence; 14. Support oil cylinder; 2. Direction-changing adjustment mechanism; 21. Support base; 22. Direction-changing assembly; 221. First direction-changing rod; 222. Second direction-changing rod; 223. First hinge seat; 224. Second hinge seat; 225. Third hinge seat; 23. Support plate; 3. Detection mechanism; 31. Pneumatic hammer; 311. Connecting wire; 32. Sensor; 321. Transmission line; 33. Controller; 331. Driver; 332. Host; 34. Wire clamp; 4. Gantry; 41. Mounting hole; 42. Lock nut; 43. Support rod; 44. Clamping sleeve; 441. Half ring; 442. Fastening assembly; 5. Adjustment bracket; 51. Top support rod; 511. Outer sleeve; 512. Outer extension rod; 52. Telescopic sleeve rod; 53. Support seat; 54. Support arm. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or several of such features. In the description of the present invention, the meaning of "a plurality" and "several" is two or more, unless otherwise specifically defined.

[0025] Please refer to Figures 1 to 4, now the utility model provides a tunnel vault concrete pouring quality on-site detection equipment. The tunnel vault concrete pouring quality on-site detection equipment comprises a walking lifting platform 1, a direction-changing adjustment mechanism 2 and a detection mechanism 3, wherein the walking lifting platform 1 comprises a scissor-type lifting mechanism 13 capable of lifting and moving and a walking wheel 12 connected to the bottom of the scissor-type lifting mechanism 13; the direction-changing adjustment mechanism 2 comprises a support seat 21 connected to the top of the scissor-type lifting mechanism 13, a direction-changing component 22 hinged on the support seat 21 and a support plate 23 hinged above the direction-changing component 22, and the direction-changing component 22 is used to drive the support plate 23 to swing vertically; the detection mechanism 3 comprises a pneumatic hammer 31, a sensor 32 and a controller 33, the pneumatic hammer 31 and the sensor 32 are respectively connected to the support plate 23, the controller 33 is respectively electrically connected to the pneumatic hammer 31 and the sensor 32, the pneumatic hammer 31 is used to impact the vault surface of the measured area, and the sensor 32 is used to collect vibration signals and transmit the vibration signals to the controller 33.

[0026] The present embodiment provides a tunnel vault concrete pouring quality on-site detection equipment. Compared with the prior art, the equipment is moved to the vicinity of the tested area by the walking wheel 12, the scissor-type lifting mechanism 13 is started to adjust the overall height of the equipment, and then the direction of the support plate 23 is adjusted by the direction-changing component 22, so that the working end of the pneumatic hammer 31 and the sensor 32 can be close to the vault surface of the tested area at different angles. The controller 33 makes the pneumatic hammer 31 impact the vault surface at a certain speed, and at the same time uses the sensor 32 to collect the vibration signal generated when the vault is impacted, and transmits the vibration signal to the controller 33. The controller 33 performs data analysis and processing based on the vibration signal and quickly gives the evaluation result of the pouring quality. The above equipment can safely and quickly detect the pouring quality of tunnel vault concrete from different heights and angles, overcomes the defects of the existing detection methods such as complex data processing of non-destructive methods and easy damage to the vault caused by lossy methods, and improves the detection efficiency and accuracy.

[0027] In this embodiment, the controller 33 includes a driver 331 for controlling the start of the pneumatic hammer 31 and a host 332 for data analysis. Specifically, the connecting line 311 of the pneumatic hammer 31 is connected to the driver 331, and the transmission line 321 of the sensor 32 is connected to the host 332. The connecting line 311 and the transmission line 321 are both gathered by the wire clamp 34 to avoid being entangled with each other during the lifting or turning process of the equipment. Furthermore, the host 332 is also connected to a terminal display to display the analysis results of the data to the tester in real time.

[0028] As a specific implementation of the tunnel vault concrete pouring quality on-site detection equipment provided by the utility model, see Figure 2, The pneumatic hammer 31 is connected to the supporting plate 23 through the gantry 4. Two support rods 43 that extend radially outward are connected to the outer periphery of the pneumatic hammer 31. Mounting holes 41 for the support rods 43 to pass through are provided on both side walls of the gantry 4. A clamping sleeve 44 that clamps the outer periphery of the pneumatic hammer 31 is connected to the top plate of the gantry 4.

[0029] In this embodiment, the two support rods 43 respectively pass through the mounting holes 41 on both side walls of the gantry 4 to support the pneumatic hammer 31 on the gantry 4. At the same time, the clamping sleeve 44 on the top plate of the gantry 4 clamps the upper end of the pneumatic hammer 31 to ensure the stability of the pneumatic hammer 31 during impact work.

[0030] Specifically, the two side walls of the gantry 4 can be directly welded to the supporting plate 23, or a detachable connection method such as bolt connection can be used. The two ends of the top plate of the gantry 4 are respectively welded to the tops of the two side walls, and the clamping sleeve 44 is connected to the middle position of the top plate of the gantry 4.

[0031] As a specific implementation manner of a tunnel crown concrete pouring quality on-site detection device provided by the present utility model, refer to Figure 2 , A plurality of mounting holes 41 are provided on both side walls of the gantry 4, and the plurality of mounting holes 41 are arranged at intervals in the up and down direction; a positioning nut 42 is threadedly connected to the outer end of the support rod 43, and the positioning nut 42 abuts against the outer side wall of the gantry 4.

[0032] In this embodiment, by passing the support rod 43 through the mounting holes 41 at different heights, the installation height of the pneumatic hammer 31 can be adjusted, that is, the distance that the working end of the pneumatic hammer 31 protrudes from the gantry 4 is adjusted, so that the pneumatic hammer 31 can adapt to tunnel crowns of different shapes and avoid interference between the gantry 4 and the tunnel crown when the pneumatic hammer 31 works.

[0033] For the specific installation operation process, the pneumatic hammer 31 can be first supported to a suitable height, the clamping sleeve 44 is clamped to the upper end of the pneumatic hammer 31, then the support rod 43 is passed through the mounting hole 41, the inner end of the support rod 43 is threadedly connected to the pneumatic hammer 31, and then the positioning nut 42 is screwed into the outer end of the support rod 43, and the side wall of the positioning nut 42 is pressed against the outer side wall of the gantry 4 to firmly connect the pneumatic hammer 31.

[0034] As a specific implementation manner of a tunnel crown concrete pouring quality on-site detection device provided by the present utility model, refer to Figure 2 and Figure 3 , The clamping sleeve 44 includes two semi-rings 441 respectively hinged to the top plate of the gantry 4. The main axes of the two semi-rings 441 both extend in the up and down direction, and the two semi-rings 441 are connected by a fastening component 442.

[0035] In this embodiment, for the convenience of installing the pneumatic hammer 31, the clamping sleeve 44 is configured as a structure of two semi-rings 441. Specifically, the top plate of the gantry 4 is divided into two segments, and the two semi-rings 441 are respectively hinged to the top plates of the two segments of the gantry 4. The clamping radius of the semi-ring 441 is adapted to the diameter of the upper end of the pneumatic hammer 31. When installing the pneumatic hammer 31, the upper end of the pneumatic hammer 31 is passed through the centers of the two semi-rings 441, and then the two semi-rings 441 are connected by a fastening assembly 442 to form a clamping sleeve 44 that clamps around the outer periphery of the pneumatic hammer 31. The split structure of the clamping sleeve 44 is also suitable for cooperating with mounting holes 41 of different heights to adjust the installation height of the pneumatic hammer 31.

[0036] As a specific implementation manner of a on-site detection device for the quality of tunnel arch concrete pouring provided by the present utility model, refer to Figure 2 , the sensor 32 is connected to the support plate 23 through an adjustment bracket 5. The adjustment bracket 5 includes a top support rod 51 and a telescopic sleeve rod 52. The inner end of the top support rod 51 is hinged to the support plate 23, the outer end of the top support rod 51 is hinged with a support seat 53, the sensor 32 is connected to the support seat 53, the fixed end of the telescopic sleeve rod 52 is hinged to the support plate 23, and the outer extension end of the telescopic sleeve rod 52 is hinged to the outer periphery of the top support rod 51. The telescopic sleeve rod 52 is used to drive the top support rod 51 and the support seat 53 to swing vertically.

[0037] In this embodiment, the telescopic movement of the telescopic sleeve rod 52 can drive the top support rod 51 to swing vertically around the hinge point with the support plate 23 to adjust the detection position. Further, the support seat 53 is connected to the outer end of the top support rod 51 by a spherical hinge, increasing the rotation angle of the support seat 53 relative to the top support rod 51, so that the sensor 32 can be closely attached to the arch top surface in different orientations within the swing range of the top support rod 51.

[0038] Specifically, the telescopic sleeve rod 52 can adopt the structure of an electric push rod, a cylinder or a hydraulic cylinder, which is not limited herein.

[0039] As a specific implementation manner of a on-site detection device for the quality of tunnel arch concrete pouring provided by the present utility model, refer to Figure 2 , the top support rod 51 includes an outer sleeve 511 and an outer extension rod 512 slidably connected within the outer sleeve 511. The outer sleeve 511 is hinged to the support plate 23 through a support arm 54. The outer extension end of the telescopic sleeve rod 52 is hinged to the peripheral wall of the outer sleeve 511. The support seat 53 is hinged to the outer extension end of the outer extension rod 512. The outer extension rod 512 can slide outward along the outer sleeve 511 so that the support seat 53 abuts against the arch top surface.

[0040] In this embodiment, the top support rod 51 is configured such that the outer extension rod 512 is slidably connected to the outer sleeve 511. When the top support rod 51 swings vertically, the outer extension rod 512 can drive the support seat 53 and the sensor 32 to slide outwards and upwards, so as to increase the detection range of the sensor 32 and improve the detection efficiency.

[0041] The provision of the support arm 54 helps to reduce the set length of the top support rod 51. The outer sleeve 511 and the outer extension rod 512 can be in the form of an electric push rod, a pneumatic strut or a hydraulic strut, which is not limited herein.

[0042] As a specific embodiment of the on-site detection device for the quality of tunnel crown concrete pouring provided by the present utility model, refer to Figure 1 or Figure 2 , there are four sets of sensors 32 and adjustment brackets 5 respectively, and the four sets of sensors 32 and adjustment brackets 5 are respectively arranged near the four corners of the support plate 23.

[0043] In this embodiment, the support plate 23 is a rectangular plate-like member, the pneumatic hammer 31 is arranged at the center of the support plate 23, and the four sets of sensors 32 are respectively arranged near the four corners of the support plate 23. When the support plate 23 is lifted to a certain detection area facing the crown, the pneumatic hammer 31 impacts the center of the detection area, and the four sets of sensors 32 respectively collect the vibration signals of the detection area from four different directions, avoiding the formation of detection dead angles and greatly improving the detection efficiency.

[0044] As a specific embodiment of the on-site detection device for the quality of tunnel crown concrete pouring provided by the present utility model, refer to Figure 1 or Figure 4 , the direction-changing assembly 22 includes a first direction-changing rod 221 and a second direction-changing rod 222. The lower end of the first direction-changing rod 221 is hinged to the support seat 21 through a first hinge seat 223, the upper end of the first direction-changing rod 221 is hinged to the lower end of the second direction-changing rod 222 through a second hinge seat 224, and the upper end of the second direction-changing rod 222 is hinged to the bottom surface of the support plate 23 through a third hinge seat 225. Built-in drive motors are provided in the first hinge seat 223, the second hinge seat 224 and the third hinge seat 225;

[0045] Among them, the first direction-changing rod 221 is used to drive the second direction-changing rod 222 and the support plate 23 to swing vertically, the second direction-changing rod 222 is used to drive the support plate 23 to swing vertically, and the swinging direction of the second direction-changing rod 222 is perpendicular to the swinging direction of the first direction-changing rod 221.

[0046] In this embodiment, the axial direction of the hinge shaft in the second hinge seat 224 is perpendicular to the axial direction of the hinge shaft in the first hinge seat 223. In this way, the support plate 23 can not only swing vertically in a plane parallel to the equipment traveling direction along with the first deflecting rod 221, but also swing vertically in a plane perpendicular to the equipment traveling direction along with the second deflecting rod 222. Moreover, the third hinge seat 225 further increases the swinging amplitude of the support plate 23, enabling the detection mechanism 3 above the support plate 23 to more flexibly adapt to the detection requirements of the vault at different heights and angles.

[0047] Specifically, built-in drive motors are provided in the first hinge seat 223, the second hinge seat 224, and the third hinge seat 225 to respectively drive the first deflecting rod 221, the second deflecting rod 222, and the support plate 23 to swing hingedly.

[0048] As a specific implementation manner of a on-site detection device for the quality of tunnel vault concrete pouring provided by the present utility model, refer to Figure 1 , the scissor lift mechanism 13 includes a base 11, a scissor brace assembly 131 connected above the base 11, and a lifting support plate 132 connected above the scissor brace assembly 131. A safety fence 133 that extends circumferentially and is disposed near the periphery of the lifting support plate 132 is provided above the lifting support plate 132. The traveling wheels 12 are connected to the base 11, and the support seat 21 is connected to the lifting support plate 132.

[0049] In this embodiment, the large-scale lifting of the lifting support plate 132 is achieved through the scissor brace assembly 131. The specific structure and lifting principle of the scissor brace assembly 131 are prior art and will not be elaborated here. The deflecting adjustment mechanism 2, the detection mechanism 3, and the controller 33 are all disposed on the lifting support plate 132. When installing the above components, it is necessary for the operator to climb onto the lifting support plate 132. Therefore, the safety fence 133 can play a role in protecting the safety of the operator.

[0050] As a specific implementation manner of a on-site detection device for the quality of tunnel vault concrete pouring provided by the present utility model, refer to Figure 1 , a plurality of support cylinders 14 are connected below the base 11, and the support cylinders 14 have support ends that can extend downward to support on the ground.

[0051] In this embodiment, when the traveling wheels 12 drive the equipment to travel into the detection area, the support cylinders 14 are started, so that the support ends of the support cylinders 14 extend downward to support on the ground. At this time, the base 11 and the traveling wheels 12 are lifted, avoiding the risk of the equipment tipping over due to the slipping of the traveling wheels 12 during operation, and improving the safety performance of the equipment.

[0052] Usage process:

[0053] First, according to the on-site tunnel environment, adjust the installation height of the pneumatic hammer 31 by using the support rods 43 and the mounting holes 41 at different heights on both side walls of the gantry 4; move the equipment to the vicinity of the area to be measured through the walking wheels 12, start the support oil cylinder 14, and make the support end support on the ground to ensure the stability of the equipment; start the scissor lift mechanism 13 to drive the steering adjustment mechanism 2 and the detection mechanism 3 to rise significantly to be close to the tunnel vault; start the steering adjustment mechanism 2 to adjust the orientation of the supporting plate 23 so that the working end of the pneumatic hammer 31 is closely attached to the measured surface of the vault, start the pneumatic hammer 31 to make the pneumatic hammer 31 impact the measured surface at a certain speed. At the same time, adjust the adjustment bracket 5 so that the sensor 32 can be closely attached to the vault surface in all directions to ensure that comprehensive vibration reflection signals are collected. The four groups of sensors 32 work simultaneously to improve the detection speed; the sensor 32 transmits the vibration data to the controller 33 in real time, and the controller 33 quickly analyzes the collected data and gives the evaluation result of the pouring quality. After detecting the area to be measured, retract the support end of the support oil cylinder 14 and start the walking wheels 12 to move the equipment to the next area to be measured.

[0054] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An on-site inspection device for the quality of concrete pouring in the tunnel vault, characterized in that, Comprising: A walking and lifting platform, including a scissor lifting mechanism capable of lifting and moving, and walking wheels connected to the bottom of the scissor lifting mechanism; A steering adjustment mechanism, including a support base connected to the scissor lifting mechanism, a steering component hinged to the support base, and a supporting plate hinged above the steering component, wherein the steering component is used to drive the supporting plate to swing vertically; A detection mechanism, including a pneumatic hammer, a sensor, and a controller, wherein the pneumatic hammer and the sensor are respectively connected to the supporting plate, the controller is electrically connected to the pneumatic hammer and the sensor respectively, the pneumatic hammer is used to impact the crown surface of the measured area, and the sensor is used to collect vibration signals and transmit the vibration signals to the controller.

2. The on-site inspection equipment for the quality of tunnel vault concrete pouring according to claim 1, characterized in that The pneumatic hammer is connected to the supporting plate through a portal frame. Two support rods respectively extending radially outward are connected to the outer periphery of the pneumatic hammer. Mounting holes for the support rods to pass through are provided on both side walls of the portal frame, and a clamping sleeve for clamping the outer periphery of the pneumatic hammer is connected to the top plate of the portal frame.

3. The on-site inspection equipment for the quality of tunnel vault concrete pouring according to claim 2, characterized in that, A plurality of the mounting holes are provided on both side walls of the portal frame, and the plurality of mounting holes are arranged at intervals in the up and down direction; a positioning nut is threadedly connected to the outer end of the support rod, and the positioning nut abuts against the outer side wall of the portal frame.

4. The on-site inspection equipment for the quality of tunnel vault concrete pouring according to claim 2, characterized in that, The clamping sleeve includes two semi-rings respectively hinged to the top plate of the portal frame. The main axes of the two semi-rings both extend in the up and down direction, and the two semi-rings are connected through a fastening component.

5. The on-site inspection equipment for the quality of concrete pouring at the tunnel vault as described in claim 1, characterized in that, The sensor is connected to the supporting plate through an adjustment bracket. The adjustment bracket includes a top support rod and a telescopic sleeve rod. The inner end of the top support rod is hinged to the supporting plate, the outer end of the top support rod is hinged with a supporting seat, the sensor is connected to the supporting seat, the fixed end of the telescopic sleeve rod is hinged to the supporting plate, the outer extending end of the telescopic sleeve rod is hinged to the outer periphery of the top support rod, and the telescopic sleeve rod is used to drive the top support rod and the supporting seat to swing vertically.

6. The on-site inspection equipment for the quality of tunnel vault concrete pouring according to claim 5, characterized in that The top support rod includes an outer sleeve tube and an outer extending rod slidably connected in the outer sleeve tube. The outer sleeve tube is hinged to the supporting plate through a support arm, the outer extending end of the telescopic sleeve rod is hinged to the peripheral wall of the outer sleeve tube, the supporting seat is hinged to the outer extending end of the outer extending rod, and the outer extending rod can slide outward along the outer sleeve tube so that the supporting seat abuts against the crown surface.

7. The on-site inspection equipment for the quality of tunnel vault concrete pouring according to claim 5, characterized in that, Four groups of the sensors and the adjustment brackets are respectively provided, and the four groups of sensors and the adjustment brackets are respectively arranged near the four corners of the supporting plate.

8. The on-site inspection device for the quality of tunnel vault concrete pouring according to claim 1, characterized in that, The steering component includes a first steering rod and a second steering rod. The lower end of the first steering rod is hinged to the support base through a first hinge seat, the upper end of the first steering rod is hinged to the lower end of the second steering rod through a second hinge seat, the upper end of the second steering rod is hinged to the bottom surface of the supporting plate through a third hinge seat, and built-in drive motors are provided in the first hinge seat, the second hinge seat, and the third hinge seat; Wherein, the first direction-changing rod is used to drive the second direction-changing rod and the supporting plate to swing vertically, the second direction-changing rod is used to drive the supporting plate to swing vertically, and the swinging direction of the second direction-changing rod is perpendicular to the swinging direction of the first direction-changing rod.

9. The on-site inspection equipment for the quality of concrete pouring at the tunnel vault as claimed in claim 1, characterized in that, The scissor lift mechanism includes a base, a scissor brace assembly connected above the base, and a lifting support plate connected above the scissor brace assembly. A safety fence extending circumferentially and disposed near the periphery of the lifting support plate is provided above the lifting support plate. The traveling wheels are connected to the base, and the support seats are connected to the lifting support plate.

10. The on-site inspection equipment for the quality of tunnel vault concrete pouring according to claim 9, characterized in that, A plurality of support oil cylinders are connected to the bottom of the base, and the support oil cylinders have support ends that can extend downward to support on the ground.

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