Pedal capable of measuring asphalt virtual paving thickness and temperature

Abstract

The utility model discloses a pedal plate capable of measuring asphalt virtual paving thickness and temperature, and belongs to the field of municipal engineering construction auxiliary devices. The device comprises a pedal box and a partial pressure plate, lifting assemblies are installed between the outer side portion of the pedal box and the pressure dividing plates, and the distance between the pedal box and the pressure dividing plates can be adjusted through the lifting assemblies. A supporting rod extending downwards is mounted on the pedal box; a temperature measuring tip is installed at the bottom of the supporting rod, and a thickness measuring assembly is further installed on the supporting rod. The temperature measuring tip and the thickness measuring assembly are connected with the controller through wires. A temperature indicator and a thickness indicator are also arranged at the upper part of the pedal box; the temperature indicator, the thickness indicator, the temperature measuring tip, the thickness measuring assembly and the controller are all powered by a battery arranged in the pedal box. The utility model effectively solves the problem that the conventional means for measuring the asphalt paving temperature has certain potential safety hazards, so that the measuring personnel cannot safely and efficiently carry out the measuring operation.

Description

Technical Field

[0001] The utility model relates to the field of municipal engineering construction auxiliary devices, in particular to a foot pedal capable of measuring the thickness and temperature of asphalt virtual paving. Background Art

[0002] When constructing asphalt pavement in municipal engineering, an asphalt paver is usually used for paving operations. Before the roller is rolled, the virtual paving thickness and temperature of the asphalt need to be measured to ensure the construction quality of the asphalt. According to the traditional thickness measurement method, a steel ruler is usually inserted into the asphalt to measure the depth of asphalt burial, and a thermometer is usually used for temperature measurement. However, the asphalt paving temperature is too high, and it is easy for the surveyor to stand on the working surface and cause burns, making it difficult to carry out the measurement operation. In addition, the two values ​​must be measured separately to obtain, and the process is complicated and time-consuming. The surveyor cannot carry out the measurement operation safely and efficiently. Therefore, a device that can safely and conveniently measure the temperature of asphalt is currently needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a foot pedal capable of measuring the virtual thickness and temperature of asphalt paving, so as to solve the problem that the conventional means for measuring the temperature of asphalt paving have certain potential safety hazards, making it impossible for measurement personnel to carry out measurement work safely and efficiently.

[0004] In order to solve the above problems, the utility model provides the following technical solutions:

[0005] A pedal capable of measuring the thickness and temperature of asphalt pavement; it comprises a pedal box with an opening at the top and a plurality of pressure dividing plates for supporting the asphalt surface layer; a lifting assembly is installed between the outer side of the pedal box and each pressure dividing plate, and the distance between the pedal box and the pressure dividing plates can be adjusted by the lifting assembly; a support rod extending downward is installed on the pedal box; a temperature measuring tip is installed at the bottom of the support rod, and a thickness measuring assembly is also installed on the support rod; the temperature measuring tip and the thickness measuring assembly are both connected to a controller through a wire; a temperature indicator and a thickness indicator are also arranged on the upper part of the pedal box; the temperature indicator, the thickness indicator, the temperature measuring tip, the thickness measuring assembly and the controller are all powered by a battery built into the pedal box.

[0006] Preferably, the pedal box is a hollow rectangular box structure; a front cover plate is detachably provided at the front side of the upper top of the pedal box; and the temperature indicator and the thickness indicator are both mounted on the front cover plate.

[0007] Preferably, the number of pressure dividing plates is not less than three, and all of the pressure dividing plates are disc-shaped structures; the lifting assembly includes a column arranged in the middle of the top surface of the pressure dividing plate, and a cantilever cross bar arranged on the side of the pedal box; a vertically arranged guide groove is opened on the end surface of the column facing the pedal box; a sliding block matching the guide groove is arranged on the protruding end of the cantilever cross bar.

[0008] Preferably, the support rod is a hollow straight tubular structure arranged vertically; the wire is arranged in the inner cavity of the support rod; the temperature measuring tip includes a hollow cone head made of practical heat-conductive material; the hollow cone head is installed at the bottom of the support rod and a temperature sensor is arranged in the cone head.

[0009] Preferably, the thickness measuring assembly includes a sleeve, an upper coil electromagnetic sensor and a lower coil electromagnetic sensor; the sleeve is arranged on the outside of the support rod, and the sleeve can move on the support rod along its axial direction; the upper coil electromagnetic sensor is installed on the support rod and can move with the support rod; the lower coil electromagnetic sensor is installed on the upper part of the sleeve and is arranged directly opposite to the upper coil electromagnetic sensor.

[0010] Furthermore, the upper coil electromagnetic sensor and the lower coil electromagnetic sensor are both annular structures with a hole in the middle; an external thread section is opened in the upward part of the middle of the support rod, and an adjustment nut is also installed on the upper coil electromagnetic sensor; and a length mark is also provided on the outer side wall of the support rod along its vertical direction.

[0011] Preferably, a pressure nozzle is also provided on the lower side of the pedal box; one end of the pressure nozzle is connected to the discharge end of the electric-controlled water pump; the electric-controlled water pump is controlled by the controller, and the marking pigment is installed in the electric-controlled water pump.

[0012] Preferably, the controller is an integrated circuit mainboard structure based on a single-chip microcomputer; it is packaged on the front cover plate (6); and the power supply is arranged inside the pedal box.

[0013] Beneficial effects of the utility model:

[0014] The foot pedal designed by the utility model is easy to operate, can efficiently identify areas with insufficient thickness and temperature and mark them, and remind operators to make corrections in time; the foot pedal has the advantages of simple operation, safety, and high efficiency; it can effectively protect the life health and life safety of measurement personnel, and greatly improve the work efficiency of measurement personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model in an embodiment;

[0016] Figure 2 Schematic diagram of the structure of the support rod in this embodiment;

[0017] Figure 3 yes Figure 1A top view of the device;

[0018] Figure 4 yes Figure 3 Left view of;

[0019] Figure 5 yes Figure 1 A schematic diagram of the structure after the pedal box in the device moves downward for a certain distance;

[0020] Explanation of the reference numerals in the accompanying drawings: 1. Pedal box; 2. Post; 3. Pressure divider plate; 4. Temperature indicator; 5. Thickness indicator; 6. Front cover plate; 7. Sleeve; 8. Lower coil electromagnetic sensor; 9. Support rod; 10. Upper coil electromagnetic sensor; 11. Pressure nozzle; 12. Temperature measuring tip; 13. Cantilever cross bar; 14. Guide groove; 15. Asphalt surface layer virtual paving. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] Example:

[0023] Reference Figure 1 The present embodiment provides a pedal capable of measuring the thickness and temperature of asphalt virtual paving; it comprises a pedal box 1 with an opening at the top and a plurality of pressure dividing plates 3 for supporting the asphalt surface layer; a lifting assembly is installed between the outer side of the pedal box 1 and each pressure dividing plate 3, and the pedal box 1 can adjust the distance between the pedal box 1 and the pressure dividing plates through the lifting assembly; a support rod 9 extending downward is installed on the pedal box 1; a temperature measuring tip 12 is installed at the bottom of the support rod 9, and a thickness measuring assembly is also installed on the support rod 9; the temperature measuring tip 12 and the thickness measuring assembly are both connected to the controller through a wire; a temperature indicator 4 and a thickness indicator 5 are also arranged on the upper part of the pedal box 1; the temperature indicator 4, the thickness indicator 5, the temperature measuring tip 12, the thickness measuring assembly and the controller are all powered by a battery built into the pedal box.

[0024] The pedal box 1 is a hollow rectangular box structure; a front cover plate 6 is detachably provided at the front side of the upper top of the pedal box 1 ; the temperature indicator 4 and the thickness indicator 5 are both mounted on the front cover plate 6 .

[0025] The number of the pressure dividing plates 3 is not less than three, and the pressure dividing plates 3 are all disc-shaped structures; the lifting assembly includes a column 2 arranged in the middle of the top surface of the pressure dividing plate 3, and a cantilever cross bar 13 arranged on the side of the pedal box 1; a vertically arranged guide groove 14 is opened on the end surface of the column 2 facing the pedal box 1; a slider matched with the guide groove 14 is arranged on the protruding end of the cantilever cross bar 13. In this embodiment, a card plate structure for limiting and preventing the slider from detaching from the upper part of the guide groove is also arranged on the upper top of the guide groove 14. In this embodiment, the number of pressure dividing plates corresponding to a single pedal box is 4. It can be understood that in order to improve the convenience of actual operation of the staff, different numbers of pressure dividing plates can be used according to needs, or the installation position of the pressure dividing plate relative to the pedal box can be adjusted.

[0026] The support rod 9 is a hollow straight tube structure arranged vertically; the wire is arranged in the inner cavity of the support rod 9; the temperature measuring tip 12 includes a hollow cone head made of practical heat conductive material; the hollow cone head is installed at the bottom of the support rod 9 and a temperature sensor is arranged in the cone head.

[0027] The thickness measuring assembly includes a sleeve 7, an upper coil electromagnetic sensor 10 and a lower coil electromagnetic sensor 8; the sleeve 7 is arranged outside the support rod 9, and the sleeve 7 can move on the support rod 9 along its axial direction; the upper coil electromagnetic sensor 10 is installed on the support rod 9 and can move with the support rod; the lower coil electromagnetic sensor 8 is installed on the upper part of the sleeve 7 and is arranged opposite to the upper coil electromagnetic sensor 10.

[0028] The upper coil electromagnetic sensor 10 and the lower coil electromagnetic sensor 8 are both annular structures with a hole in the middle; an external thread section is opened in the upward part of the middle of the support rod 9, and an adjustment nut is also installed on the upper coil electromagnetic sensor 10; a length mark is also provided on the outer side wall of the support rod 9 along its vertical direction.

[0029] A pressure nozzle 11 is also provided at the lower side of the pedal box 1; one end of the pressure nozzle 11 is connected to the discharge end of the electric control water pump; the electric control water pump is controlled by the controller and is filled with marking pigment. In this embodiment, the pressure nozzle is provided on the sleeve 7, and the electric control water pump is not shown in the figure.

[0030] The controller is an integrated circuit mainboard structure based on a single chip microcomputer; it is packaged on the front cover plate 6; and the power supply is arranged inside the pedal box 1.

[0031] The pedal device in this embodiment needs to be used in pairs, and it is recommended that the measurement personnel hold a structure similar to a snow pole to assist in balance support; when using the utility model device in this embodiment, the following operating steps can be referred to;

[0032] First, before entering the measurement area, it is necessary to know the asphalt compaction coefficient and virtual paving thickness through experiments. After that, the upper coil electromagnetic sensor 10 is adjusted according to the virtual paving thickness, so that when the cross bar is at the highest position on the guide groove, the height of the upper coil electromagnetic sensor 10 from the lower coil electromagnetic sensor 8 is the same as the virtual paving thickness.

[0033] After that, the surveyor puts on the pedal device with one foot on each side and enters the measuring area; during measurement, when the surveyor steps down with force, the support disc 3 is supported on the virtual paving surface 15 of the asphalt surface layer to prevent the surveyor from falling; at this time, the cross bar 13 moves downward through the guide groove 14, and the upper coil electromagnetic sensor 10 moves downward synchronously; during this process, the temperature measuring tip 12 will continue to move downward until it contacts the road surface base, the cantilever cross bar 13 and the pedal box 1 stop moving, and the upper coil electromagnetic sensor 10 also stops moving; if the upper coil electromagnetic sensor 10 and the lower coil electromagnetic sensor 10 are in contact with each other at this time, the temperature measuring tip 12 will continue to move downward until it contacts the road surface base, and the cantilever cross bar 13 and the pedal box 1 stop moving, and the upper coil electromagnetic sensor 10 also stops moving. When the coil electromagnetic sensors 8 are in contact, the two coil electromagnetic sensors transmit the corresponding signals to the thickness indicator 5 through the control circuit arranged in the sleeve 7, and the thickness indicator 5 lights up, indicating that the thickness of the asphalt virtual paving at this location meets the design requirements; if the upper coil electromagnetic sensor 10 and the lower coil electromagnetic sensor 8 are not in contact at this time, the two coil electromagnetic sensors do not transmit signals to the thickness indicator 5, and the thickness indicator 5 will not light up. At this time, the controller controls the electric water pump to spray paint through the pressure nozzle 11 for marking, so as to facilitate subsequent operators to understand that the asphalt virtual paving thickness in this area is insufficient.

[0034] After the temperature measuring tip 12 is inserted into the asphalt, the temperature signal is input into the controller through the wire in the sleeve 7. If the temperature reaches the set temperature, the controller will control the temperature indicator 4 to light up; if the temperature does not reach the set temperature, the temperature indicator 4 will not light up, and the asphalt in this area should be scraped off and re-paved. When the surveyor lifts his foot, the crossbar 13 moves upward through the guide groove 14, and the crossbar returns to its original position for the next operation.

Claims

1. A pedal capable of measuring the thickness and temperature of asphalt pavement, characterized in that: The invention comprises a pedal box (1) with an opening at the top and a plurality of pressure dividing plates (3) for supporting on the asphalt surface layer; a lifting assembly is installed between the outer side of the pedal box (1) and each pressure dividing plate (3), and the distance between the pedal box (1) and the pressure dividing plate can be adjusted by the lifting assembly; a support rod (9) extending downward is installed on the pedal box (1); a temperature measuring tip (12) is installed at the bottom of the support rod (9), and a thickness measuring assembly is also installed on the support rod (9); the temperature measuring tip (12) and the thickness measuring assembly are both connected to a controller via a wire; a temperature indicator (4) and a thickness indicator (5) are also arranged on the upper part of the pedal box (1); the temperature indicator (4), the thickness indicator (5), the temperature measuring tip (12), the thickness measuring assembly and the controller are all powered by a battery built into the pedal box.

2. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 1, characterized in that: The pedal box (1) is a hollow rectangular box structure; a front cover plate (6) is detachably provided at the front side of the upper top of the pedal box (1); and the temperature indicator (4) and the thickness indicator (5) are both mounted on the front cover plate (6).

3. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 1, characterized in that: The number of the pressure dividing plates (3) is not less than three, and the pressure dividing plates (3) are all disc-shaped structures; the lifting assembly comprises a column (2) arranged at the middle position of the top surface of the pressure dividing plate (3), and a cantilever cross bar (13) arranged at the side of the pedal box (1); a vertically arranged guide groove (14) is opened on the end surface of the column (2) facing the pedal box (1); and a sliding block matching the guide groove (14) is arranged on the protruding end of the cantilever cross bar (13).

4. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 1, characterized in that: The support rod (9) is a hollow straight tube-shaped structure arranged in a vertical direction; the wire is arranged in the inner cavity of the support rod (9); the temperature measuring tip (12) comprises a hollow cone head made of a practical heat-conductive material; the hollow cone head is installed at the bottom of the support rod (9) and a temperature measuring sensor is arranged in the cone head.

5. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 1, characterized in that: The thickness measurement assembly comprises a sleeve (7), an upper coil electromagnetic sensor (10) and a lower coil electromagnetic sensor (8); the sleeve (7) is sleeved on the outside of the support rod (9), and the sleeve (7) can move on the support rod (9) along its axial direction; the upper coil electromagnetic sensor (10) is installed on the support rod (9) and can move with the support rod; the lower coil electromagnetic sensor (8) is installed on the upper part of the sleeve (7) and is arranged opposite to the upper coil electromagnetic sensor (10).

6. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 5, characterized in that: The upper coil electromagnetic sensor (10) and the lower coil electromagnetic sensor (8) are both annular structures with a hole in the middle. An external thread section is provided in the middle upward portion of the support rod (9), and an adjustment nut is also installed on the upper coil electromagnetic sensor (10). A length mark is also provided on the outer side wall of the support rod (9) along its vertical direction.

7. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 1, characterized in that: A pressure nozzle (11) is also provided on the lower side of the pedal box (1); one end of the pressure nozzle (11) is connected to the discharge end of an electric-controlled water pump; the electric-controlled water pump is controlled by a controller and is filled with a marking pigment.

8. A pedal capable of measuring asphalt loose paving thickness and temperature according to claim 1, characterized in that: The controller is an integrated circuit mainboard structure based on a single chip microcomputer; It is packaged on the front cover plate (6); and the power supply is arranged inside the pedal box (1).

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