Hollow floor top and bottom plate thickness measuring device based on radar technology

Abstract

The invention discloses a hollow floor top and bottom plate thickness measuring device based on a radar technology, and relates to the field of engineering measurement equipment, the hollow floor top and bottom plate thickness measuring device comprises a shell, the inner wall of the shell is fixedly connected with a control mainboard, the surface of the shell is fixedly connected with a control operation screen, and the lower surface of the shell is fixedly connected with a second sleeve. The inner wall of the second sleeve is slidably connected with a connecting column, and the inner top wall of the second sleeve is fixedly connected with a first spring. According to a wheel groove and a storage groove, storage of a connecting shaft and a moving wheel after overall rotation, adsorption of an annular metal sheet and a first magnetic attraction strip after storage and stability keeping are facilitated, a positioning column can be driven to reset through a second spring, the positioning column is located in a clamping groove, and the positioning column is located and clamped in the clamping groove to be kept stable; when an operator pushes the whole shell to move on the surface of a floor slab for detection, supporting of the driving plate is kept stable, meanwhile, rotation and storage are facilitated, and space is saved.

Description

Technical Field

[0001] The invention relates to the field of engineering measurement equipment, and in particular to a device for measuring the thickness of a hollow floor top and bottom plates based on radar technology. Background Art

[0002] There are two methods for measuring the thickness of an object: direct measurement and non-contact measurement. The direct measurement method is to measure by contact with some conventional tools. The non-contact measurement method is to use laser sensors, ultrasonic sensors, etc. to measure by reflection of laser or sound waves. This method can be performed without affecting the surface quality of the object.

[0003] When measuring concrete floors, a floor thickness detection device is needed. During the construction of existing floors, hollow plastic boxes are filled inside. The hollow plastic boxes are a tool to enhance the toughness and crack resistance of concrete. The detection device is usually handheld when used, close to the floor to be detected and waiting for ultrasonic feedback. However, if the existing handheld device needs to be re-detected, it needs to be moved all the time to determine whether the thickness of the floor is uniform and reasonable. This is very inconvenient. At the same time, the handheld device cannot be reduced to reduce its carrying space when carried. Therefore, a hollow floor top and bottom plate thickness measurement device based on radar technology is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a hollow floor top and bottom plate thickness measuring device based on radar technology to solve the problem mentioned in the above background technology that if the existing handheld device needs to be re-tested, it is very inconvenient to keep moving to determine whether the thickness of each part of the floor is uniform and reasonable. At the same time, the handheld device cannot be shrunk to reduce its carrying space when carried.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology, comprising a shell, the inner wall of the shell is fixedly connected with a control main board, the surface of the shell is fixedly connected with a control operation screen, the lower surface of the shell is fixedly connected with a second sleeve, the inner wall of the second sleeve is slidably connected with a connecting column, the inner top wall of the second sleeve is fixedly connected with a first spring, the bottom end of the first spring is fixedly connected with the upper surface of the connecting column, the lower surface of the connecting column is fixedly connected with a semi-cylinder, the inner bottom wall of the semi-cylinder is fixedly connected with a mounting plate, the inner wall of the mounting plate is fixedly connected with an ultrasonic receiver and an ultrasonic transmitter, the inner bottom wall of the semi-cylinder is provided with a plurality of sound wave holes, the surface of the semi-cylinder is rotatably connected with a turntable, and storage mechanisms are provided on both sides of the shell;

[0006] The storage mechanism includes a wheel groove and a storage groove opened on both sides of the shell, the wheel groove and the storage groove are connected, the inner wall of the storage groove is rotatably connected to a driving plate, the inner wall of the driving plate is rotatably connected to a connecting shaft, and both ends of the connecting shaft are rotatably connected to moving wheels.

[0007] Preferably, an annular metal sheet is fixedly connected to the inner wall of the moving wheel, a first magnetic strip is fixedly connected to the inner wall of the wheel groove, and an arc-shaped groove is formed on the inner wall of the storage groove.

[0008] Preferably, a card slot is opened on the inner wall of the arc-shaped groove, a first sleeve is fixedly connected to the surface of the driving plate, a positioning column is slidably connected to the inner wall of the first sleeve, a second spring is fixedly connected to the inner wall of the first sleeve, and one end of the second spring is fixedly connected to one side of the positioning column.

[0009] Preferably, one end of the positioning column is set as a first chamfered corner, and the transition between the arc groove and the clamping groove is set as a second chamfered corner.

[0010] Preferably, the upper surface of the semi-cylinder is rotatably connected to a rotating shaft, the top end of the rotating shaft is fixedly connected to a pressure plate, the surface of the rotating shaft is sleeved with a torsion spring, the bottom end of the torsion spring is fixedly connected to the upper surface of the semi-cylinder, and the top end of the torsion spring is fixedly connected to the lower surface of the pressure plate.

[0011] Preferably, a dustproof arc plate is slidably connected to the inner wall of the semi-cylinder, a pull plate is fixedly connected to the upper surface of the dustproof arc plate, and a pair of clamping holes are opened on the upper surface of the dustproof arc plate.

[0012] Preferably, a fixing plate is fixedly connected to the upper surface of the shell, a pair of opposite surfaces of the fixing plates are fixedly connected to the same lighting lamp, an index plate is slidably connected to the inner wall of the shell, a side of the index plate close to the control main board is magnetically attracted to the inner wall of the shell, and a guide hole is opened on the upper surface of the index plate.

[0013] Preferably, a second magnetic strip is fixedly connected to the inner wall of the shell, a U-shaped plate is slidably connected to the inner wall of the shell, the upper surface of the second magnetic strip is magnetically attracted to the lower surface of the U-shaped plate, an anti-slip pad is fixedly connected to the surface of the U-shaped plate, and an arc groove is opened on the surface of the shell.

[0014] In summary, the technical effects and advantages of the present invention are as follows:

[0015] 1. In the present invention, the wheel groove and the storage groove facilitate the storage of the connecting shaft and the moving wheel after the overall rotation. The adsorption of the annular metal sheet and the first magnetic strip after storage remains stable. The second spring can drive the positioning column to reset so that it is located inside the card slot, and the positioning column is kept positioned and connected in the card slot to remain stable. When the operator pushes the shell as a whole to move and detect on the floor surface, the support of the driving plate is kept stable, and it is convenient to rotate and store, saving space.

[0016] 2. In the present invention, when the ultrasonic transmitter is not detecting, the dustproof arc plate blocks the multiple sound wave holes, so that it is waterproof and dustproof when not in use. The operator can pull the pull plate to drive the dustproof arc plate to be pulled out of the semi-cylinder to avoid it. The pressure plate can be rotated to reset in the card hole to prevent the dustproof arc plate from sliding back into the semi-cylinder. The dustproof arc plate is kept in a stable position when in use, so that the dustproof arc plate does not block the multiple sound wave holes.

[0017] 3. In the present invention, the lighting lamp illuminates an oblique projection line toward the inside of the guide hole, which can help the operator to assist in determining the forward trajectory, and is equivalent to correcting the moving position in advance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0020] Figure 2 is a schematic cross-sectional structural diagram of a housing in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the three-dimensional structure of the arc groove in an embodiment of the present invention;

[0022] Figure 4 For the embodiment of the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of a semi-cylinder in an embodiment of the present invention;

[0024] Figure 6 Schematic diagram of the three-dimensional structure of the sonic hole in an embodiment of the present invention.

[0025] In the figure: 1, housing; 2, control main board; 3, U-shaped plate; 4, anti-skid pad; 5, guide plate; 6, fixing plate; 7, lighting lamp; 8, first magnetic strip; 9, wheel groove; 10, storage groove; 11, connecting shaft; 12, annular metal sheet; 13, moving wheel; 14, driving plate; 15, arc groove; 16, second magnetic strip; 17, control operation screen; 18, positioning column; 19, arc groove; 20, card slot; 21, second Spring; 22, first sleeve; 23, semi-cylinder; 24, second sleeve; 25, connecting column; 26, first spring; 27, rotating shaft; 28, torsion spring; 29, pressure plate; 30, pull plate; 31, dust arc plate; 32, clamping hole; 33, mounting plate; 34, ultrasonic receiver; 35, ultrasonic transmitter; 36, sonic hole; 37, turntable; 38, guide hole; 39, first chamfer; 40, second chamfer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example: Reference Figure 1-Figure 6 The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology shown in the figure comprises a shell 1, the inner wall of the shell 1 is fixedly connected with a control main board 2, the surface of the shell 1 is fixedly connected with a control operation screen 17, the lower surface of the shell 1 is fixedly connected with a second sleeve 24, the inner wall of the second sleeve 24 is slidably connected with a connecting column 25, the inner top wall of the second sleeve 24 is fixedly connected with a first spring 26, the bottom end of the first spring 26 is fixedly connected with the upper surface of the connecting column 25, the lower surface of the connecting column 25 is fixedly connected with a semi-cylinder 23, the inner bottom wall of the semi-cylinder 23 is fixedly connected with a mounting plate 33, the inner wall of the mounting plate 33 is fixedly connected with an ultrasonic receiver 34 and an ultrasonic transmitter 35, the inner bottom wall of the semi-cylinder 23 is provided with a plurality of sound wave holes 36, the surface of the semi-cylinder 23 is rotatably connected with a turntable 37, and storage mechanisms are provided on both sides of the shell 1;

[0028] The storage mechanism includes a wheel groove 9 and a storage groove 10 opened on both sides of the shell 1, the wheel groove 9 and the storage groove 10 are connected, the inner wall of the storage groove 10 is rotatably connected to a driving plate 14, the inner wall of the driving plate 14 is rotatably connected to a connecting shaft 11, and the two ends of the connecting shaft 11 are rotatably connected to moving wheels 13.

[0029] By means of the above structure, by setting the control operation screen 17, the electrical signal is sent to the ultrasonic transmitter 35 through the control main board 2, so that the ultrasonic transmitter 35 works to emit ultrasonic waves. When the ultrasonic pulse emitted by the probe passes through the object to be measured and reaches the material interface, the pulse is reflected back to the ultrasonic receiver 34. The thickness of the material to be measured is determined by accurately measuring the propagation time of the ultrasonic wave in the material. By setting the second sleeve 24, the sliding stability of the connecting column 25 is maintained. By setting the first spring 26, the height movement of the semi-cylinder 23 is buffered. By setting multiple The sonic holes 36 facilitate the ultrasonic signal to be emitted through the multiple sonic holes 36, which is beneficial for propagation in the air. By setting the turntable 37, the lowest height of the turntable 37 is lower than the lowest height of the semi-cylinder 23, which prevents the semi-cylinder 23 from being directly rubbed and scratched by the ground as a whole. By setting the wheel groove 9 and the storage groove 10, the storage of the connecting shaft 11 and the moving wheel 13 after the overall rotation is convenient. By setting the driving plate 14, the connecting shaft 11 is driven to rotate for use or storage. By setting the moving wheel 13, during motion detection, the contact between the moving wheel 13 and the ground is maintained to maintain the stability of movement.

[0030] As a preferred implementation in this embodiment, the inner wall of the moving wheel 13 is fixedly connected with an annular metal sheet 12, the inner wall of the wheel groove 9 is fixedly connected with the first magnetic strip 8, and the inner wall of the storage groove 10 is provided with an arc groove 19. By providing the annular metal sheet 12, the annular metal sheet 12 and the first magnetic strip 8 are adsorbed after being received to maintain stability, and by providing the arc groove 19, the space of the first sleeve 22 and the positioning column 18 is kept away after the driving plate 14 rotates.

[0031] In this embodiment, a clamping groove 20 is provided on the inner wall of the arc-shaped groove 19, a first sleeve 22 is fixedly connected to the surface of the driving plate 14, a positioning column 18 is slidably connected to the inner wall of the first sleeve 22, a second spring 21 is fixedly connected to the inner wall of the first sleeve 22, and one end of the second spring 21 is fixedly connected to one side of the positioning column 18. By providing the clamping groove 20, the positioning column 18 is positioned and clamped in the clamping groove 20 to maintain stability, and by providing the second spring 21, the second spring 21 can drive the positioning column 18 to reset so that it is located inside the clamping groove 20.

[0032] In this embodiment, one end of the positioning column 18 is set as a first chamfer 39, and the transition between the arc groove 19 and the clamping groove 20 is set as a second chamfer 40. By setting the first chamfer 39, when the driving plate 14 is rotated and reset, the contact force between the first chamfer 39 and the second chamfer 40 is applied, and when the rotation reset force is greater than the resistance, the positioning column 18 slides toward the inside of the first sleeve 22 to avoid.

[0033] As a preferred implementation in this embodiment, the upper surface of the semi-cylinder 23 is rotatably connected with a rotating shaft 27, the top of the rotating shaft 27 is fixedly connected with a pressing plate 29, the surface of the rotating shaft 27 is sleeved with a torsion spring 28, the bottom end of the torsion spring 28 is fixedly connected to the upper surface of the semi-cylinder 23, and the top end of the torsion spring 28 is fixedly connected to the lower surface of the pressing plate 29. By providing the rotating shaft 27, the pressing plate 29 is installed, and by providing the torsion spring 28, the pressing plate 29 is driven to rotate and reset, and by providing the pressing plate 29, the upper surface of the pressing plate 30 is kept stable.

[0034] As a preferred implementation in this embodiment, the inner wall of the semi-cylinder 23 is slidably connected with a dust-proof arc plate 31, and the upper surface of the dust-proof arc plate 31 is fixedly connected with a pull plate 30, and a pair of clamping holes 32 are opened on the upper surface of the dust-proof arc plate 31. By setting the dust-proof arc plate 31, when the ultrasonic transmitter 35 is not detecting, the dust-proof arc plate 31 blocks the multiple sound wave holes 36, so that it is waterproof and dustproof when not in use. By setting the pull plate 30, the operator can pull the pull plate 30 to drive the dust-proof arc plate 31 to be pulled out from the semi-cylinder 23. By setting a pair of clamping holes 32, the pressure plate 29 can be rotated and reset in the clamping hole 32, preventing the dust-proof arc plate 31 from sliding back into the semi-cylinder 23, and keeping the dust-proof arc plate 31 stable in position when in use.

[0035] As a preferred implementation in this embodiment, a fixing plate 6 is fixedly connected to the upper surface of the housing 1, and the opposite surfaces of a pair of fixing plates 6 are fixedly connected to the same illuminating lamp 7, and an index plate 5 is slidably connected to the inner wall of the housing 1, and the side of the index plate 5 close to the control main board 2 is magnetically attracted to the inner wall of the housing 1, and a guide hole 38 is opened on the upper surface of the index plate 5. By setting the fixing plate 6, the installation support for the illuminating lamp 7 is maintained, and by setting the illuminating lamp 7, the illuminating lamp 7 illuminates an oblique projection line toward the inside of the guiding hole 38, which can help the operator to assist in judging the forward trajectory, which is equivalent to making corrections in advance.

[0036] As a preferred implementation in this embodiment, the inner wall of the shell 1 is fixedly connected with a second magnetic strip 16, the inner wall of the shell 1 is slidably connected with a U-shaped plate 3, the upper surface of the second magnetic strip 16 is magnetically attracted to the lower surface of the U-shaped plate 3, the surface of the U-shaped plate 3 is fixedly connected with an anti-skid pad 4, and the surface of the shell 1 is provided with an arc groove 15. By providing the second magnetic strip 16, the magnetic attraction with the lower surface of the U-shaped plate 3 maintains the stability of storage, and by providing the anti-skid pad 4, the operator pushes the anti-skid pad 4 to drive the U-shaped plate 3 and the shell 1 to move as a whole for detection, and by providing the arc groove 15, it is convenient for the user to take the shell 1 as a whole through the arc groove 15.

[0037] The working principle of the present invention is: a device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology. When in use, the connecting shaft 11 located in the storage groove 10 is rotated out, and at this time, the original annular metal sheet 12 and the first magnetic strip 8 are driven to change from the magnetic state to the separation state, so that the driving plate 14 and the connecting shaft 11 move as a whole. When rotating, the driving plate 14 rotates to drive the first sleeve 22 and the positioning column 18 to rotate. The positioning column 18 rotates to drive one end into the arc groove 19. When the driving plate 14 rotates to a vertical state, the positioning column 18 is just engaged. In the card slot 20, the positioning column 18 is now kept stable in the card slot 20 by the action of the second spring 21, and the turntable 37 and the semi-cylinder 23 are pushed as a whole by the action of the first spring 26, so that the turntable 37 is in contact with the ground outside. Before the mobile detection, the pressure plate 29 is first rotated, and the dust arc plate 31 is pulled out of the semi-cylinder 23, and the pressure plate 29 is released. The pressure plate 29 is clamped in the clamping hole 32 under the action of the torsion spring 28 to keep the dust arc plate 31 stable in position, and then the lighting lamp 7 is turned on, and the lighting lamp 7 is facing the guide hole. 38 is illuminated with an oblique projection line, which can help the operator to assist in judging the forward trajectory, which is equivalent to making corrections in advance. Then, through the control of the control operation screen 17, the electrical signal is sent to the ultrasonic transmitter 35 through the control main board 2, so that the ultrasonic transmitter 35 works to emit ultrasonic waves. When the ultrasonic pulse emitted by the probe passes through the object to be measured and reaches the material interface, the pulse is reflected back to the ultrasonic receiver 34. The thickness of the material to be measured is determined by accurately measuring the time for the ultrasonic wave to propagate in the material. During mobile detection, the operator pushes the U-shaped plate 3 to drive the shell 1 to move as a whole, and the thickness from the plastic hollow box in the floor slab to the upper reinforced concrete, as well as the thickness from the plastic hollow box in the floor slab to the lower reinforced concrete are detected, and the detection results are fed back to the display screen of the control operation screen 17. When the ultrasonic transmitter 35 and the ultrasonic receiver 34 are not in use, the dust arc plate 31 is reset, and the upper surface of the pull plate 30 is pressed by the pressure plate 29 to keep it stable. The connecting shaft 11 is stored and rotated into the storage groove 10 as a whole, and the U-shaped plate 3 slides down, saving space and being easy to carry.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for measuring the thickness of a hollow floor top and bottom plate based on radar technology, comprising a housing (1), characterized in that: The inner wall of the shell (1) is fixedly connected with a control mainboard (2), the surface of the shell (1) is fixedly connected with a control operation screen (17), the lower surface of the shell (1) is fixedly connected with a second sleeve (24), the inner wall of the second sleeve (24) is slidably connected with a connecting column (25), the inner top wall of the second sleeve (24) is fixedly connected with a first spring (26), the bottom end of the first spring (26) is fixedly connected with the upper surface of the connecting column (25), the lower surface of the connecting column (25) is fixedly connected with a semi-cylinder (23), the inner bottom wall of the semi-cylinder (23) is fixedly connected with a mounting plate (33), the inner wall of the mounting plate (33) is fixedly connected with an ultrasonic receiver (34) and an ultrasonic transmitter (35), the inner bottom wall of the semi-cylinder (23) is provided with a plurality of sound wave holes (36), the surface of the semi-cylinder (23) is rotatably connected with a turntable (37), and storage mechanisms are provided on both sides of the shell (1); The storage mechanism comprises a wheel groove (9) and a storage groove (10) provided on both sides of the housing (1); the wheel groove (9) and the storage groove (10) are connected; the inner wall of the storage groove (10) is rotatably connected to a driving plate (14); the inner wall of the driving plate (14) is rotatably connected to a connecting shaft (11); and both ends of the connecting shaft (11) are rotatably connected to moving wheels (13).

2. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1 is characterized in that: The inner wall of the moving wheel (13) is fixedly connected to a ring-shaped metal sheet (12), the inner wall of the wheel groove (9) is fixedly connected to a first magnetic attraction strip (8), and the inner wall of the storage groove (10) is provided with an arc groove (19).

3. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 2 is characterized in that: The inner wall of the arc-shaped groove (19) is provided with a clamping groove (20); the surface of the driving plate (14) is fixedly connected with a first sleeve (22); the inner wall of the first sleeve (22) is slidably connected with a positioning column (18); the inner wall of the first sleeve (22) is fixedly connected with a second spring (21); one end of the second spring (21) is fixedly connected to one side of the positioning column (18).

4. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 3 is characterized in that: One end of the positioning column (18) is set as a first chamfer (39), and the transition between the arc groove (19) and the clamping groove (20) is set as a second chamfer (40).

5. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1 is characterized in that: The upper surface of the semi-cylinder (23) is rotatably connected to a rotating shaft (27), the top end of the rotating shaft (27) is fixedly connected to a pressure plate (29), the surface of the rotating shaft (27) is sleeved with a torsion spring (28), the bottom end of the torsion spring (28) is fixedly connected to the upper surface of the semi-cylinder (23), and the top end of the torsion spring (28) is fixedly connected to the lower surface of the pressure plate (29).

6. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1 is characterized in that: The inner wall of the semi-cylinder (23) is slidably connected with a dust-proof arc plate (31), the upper surface of the dust-proof arc plate (31) is fixedly connected with a pull plate (30), and the upper surface of the dust-proof arc plate (31) is provided with a pair of clamping holes (32).

7. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1 is characterized by: A fixing plate (6) is fixedly connected to the upper surface of the housing (1), and a pair of opposite surfaces of the fixing plates (6) are fixedly connected to the same lighting lamp (7).

8. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1, characterized in that: The inner wall of the shell (1) is slidably connected with an index plate (5), and the side of the index plate (5) close to the control main board (2) is magnetically attracted to the inner wall of the shell (1), and a guide hole (38) is provided on the upper surface of the index plate (5).

9. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1, characterized in that: The inner wall of the shell (1) is fixedly connected to a second magnetic strip (16), the inner wall of the shell (1) is slidably connected to a U-shaped plate (3), and the upper surface of the second magnetic strip (16) is magnetically attracted to the lower surface of the U-shaped plate (3).

10. The device for measuring the thickness of the top and bottom plates of hollow floor slabs based on radar technology according to claim 1, characterized in that: An anti-slip pad (4) is fixedly connected to the surface of the U-shaped plate (3), and an arc groove (15) is provided on the surface of the shell (1).

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