CN114562934A - Be applicable to steel bridge floor EA-10 thickness check out test set - Google Patents

Abstract

The invention relates to a device suitable for detecting the thickness of a steel bridge floor EA-10, which comprises an outer box, wherein a groove is formed in the middle of the lower surface of the outer box, an electromagnetic probe is arranged in the middle of the inner part of the groove in a penetrating and sliding mode, a sliding groove is formed in one side surface of the inner part of the outer box, a motor box is fixedly connected to the upper end of the sliding groove, a motor is arranged in the motor box, a threaded lead screw is connected to the lower end of the motor in a transmission mode and is arranged in the sliding groove, a limiting block is arranged at the lower end of the threaded lead screw, a sliding block is connected to the surface of the threaded lead screw in a threaded mode, and a fixing clamp is fixedly connected to one side surface of the sliding block. The detection process is more convenient and faster.

Description

A kind of EA-10 thickness detection equipment suitable for steel bridge deck

technical field

The invention belongs to the technical field of bridge deck detection, in particular to an EA-10 thickness detection device suitable for a steel bridge deck.

Background technique

A highway, referred to as a highway, refers to a highway specially designed for high-speed driving of vehicles. Highways have different regulations in different countries, regions, eras, and academic fields of scientific research. According to China's "Technical Standards for Highway Engineering" (JTG B01-2014), expressways are multi-lane highways specially designed for vehicles to drive in different directions and lanes, and all control access. The annual average daily design traffic volume of the expressway should be more than 15,000 passenger cars, and the design speed should be 80 to 120 kilometers per hour.

Steel bridges are bridges that use steel as the main construction material. It has the characteristics of high strength and high rigidity, and can reduce the beam height and self-weight compared with concrete bridges. Due to the isotropy of steel, uniform texture and large elastic modulus, the working conditions of the bridge are in line with the assumptions in the calculation diagram. In addition, steel bridges are generally prefabricated in factories, spliced on site, with short construction period, convenient processing and not affected by seasons . However, the fire resistance and corrosion resistance of steel bridges are poor, requiring frequent inspections, maintenance, and high maintenance costs.

In the construction or use of steel bridges, it is usually necessary to detect the thickness of the steel bridge deck. The traditional detection method is to detect the thickness manually and manually using detection equipment. This detection method not only has limited detection accuracy, but also the detection process is generally more troublesome. There are certain limitations in use.

In view of the above technical problems, it is necessary to improve.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the existing defects and provide a thickness detection device suitable for steel bridge deck EA-10, so as to solve the problem that the traditional detection method proposed in the above background technology is to manually use the detection device to detect the thickness For detection, this detection method not only has limited detection accuracy, but also the detection process is generally troublesome, and there are certain limitations in use.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a thickness detection device suitable for steel bridge deck EA-10, including an outer box, the middle part of the lower surface of the outer box is provided with a groove, and the inner part of the groove is The middle part is provided with an electromagnetic probe through sliding, the inner surface of the outer box is provided with a chute, the upper end of the chute is fixedly connected with a motor box, the interior of the motor box is provided with a motor, and the lower end of the motor is driven and connected with a threaded screw rod, and The threaded screw rod is arranged inside the chute, the lower end of the threaded screw rod is provided with a limit block, the surface of the threaded screw rod is threadedly connected with a slider, and one side surface of the slider is fixedly connected with a fixing clip, and the upper end of the electromagnetic probe passes through The connecting wire is arranged inside the outer box, the connecting wire is fixedly connected to the inside of the fixing clip, and a plurality of data transmission terminals are arranged on the upper surface of the outer box.

As a preferred solution of the present invention, a hand-held terminal display is electrically connected to one side of the data transmission end through wires.

As a preferred solution of the present invention, a display terminal and a first control switch are respectively provided on the upper surface of the handheld terminal display, and there are several first control switches.

As a preferred solution of the present invention, the middle part of the upper surface of the outer box is provided with an LED display screen, and a corner of the upper surface of the outer box is provided with a running indicator light.

As a preferred solution of the present invention, one side surface of the outer box is respectively provided with an in-cell display screen and a second control switch, and several second control switches are provided.

As a preferred solution of the present invention, the four corners of the lower surface of the outer box are fixedly connected with anti-skid bases through hydraulic cylinders, and several hydraulic cylinders and anti-skid bases are provided.

As a preferred solution of the present invention, a maintenance box door is hinged on one side surface of the outer box through a hinge, and a heat dissipation net is installed inside the maintenance box door.

As a preferred solution of the present invention, a side surface of the maintenance box door is fixedly connected with an anti-collision plate through a fixing block, and a buffer pad is provided on one surface of the anti-collision plate.

As a preferred solution of the present invention, a push handle is fixedly connected to one side surface of the outer box.

As a preferred solution of the present invention, the four corners of the inner bottom end of the outer box are all slidably connected with transmission rods, there are four transmission rods, and the lower ends of the four transmission rods are all provided with steel wheels, so The inner lower end of the outer box is provided with a sliding rod, the surface of the sliding rod is slidably connected with a sliding block, and a shock-absorbing spring is arranged between the sliding block and the inner side wall of the outer box, and the shock-absorbing spring is provided on the sliding block. On the surface of the rod, a connecting rod is arranged between the sliding block and the transmission rod, and the upper end of the connecting rod is rotatably connected to the lower surface of the sliding block, and the lower end of the connecting rod is rotatably connected to the upper end of the transmission rod.

Compared with the prior art, the present invention provides an EA-10 thickness detection device suitable for a steel bridge deck, which has the following beneficial effects:

1. The present invention moves the device to the steel bridge deck through the electromagnetic probe set in use, and transmits electromagnetic signals to the steel bridge deck through the electromagnetic probe. According to the corresponding relationship of the signal difference of the electromagnetic probe, the steel bridge can be directly calculated. The thickness of the surface makes the detection process more convenient and quick, and effectively avoids the traditional detection method, which is to detect the thickness manually by using the detection equipment. This detection method not only has limited detection accuracy, but also the detection process is generally more troublesome. There are certain limitations;

2. The motor provided in the present invention can drive the threaded screw to rotate during use, so as to drive the slider threaded on the surface of the threaded screw to move up and down inside the chute, and the electromagnetic probe is installed with the fixing clip. The connecting line is fixed on one side surface of the slider, and the electromagnetic probe can be moved up and down at the inner lower end of the outer box through the lifting of the slider. When not in use, the electromagnetic probe can be retracted into the inner box of the outer box, thereby effectively preventing the device from moving. When the electromagnetic probe is collided with obstacles on the road, it will cause damage;

3. The present invention can effectively limit the sliding distance of the slider inside the chute through the set limit block, so as to prevent the damage of the device caused by the sliding of the slider overtravel. The wheels are slidably connected to the four corners of the inner lower surface of the outer box through the transmission rod. Through the mutual cooperation of the transmission rod and the shock-absorbing spring, when the equipment is moved, the vibration force on the outer box of the equipment can be effectively reduced, so that the external The electrical components and various displays inside the box play a protective role, which protects the device from damage and prolongs the service life of the device;

4. The present invention can effectively prevent the equipment from hitting the roadside or other items during the pushing process and causing damage to the electrical components and displays inside the equipment through the anti-collision plate. Anti-collision performance, through the set data transmission terminal, the handheld terminal display can be connected through the data transmission terminal, and the detection results of the equipment on the steel bridge deck can be observed more intuitively through the handheld terminal display, which is more convenient and quick to use. The built-in display screen is set, which can display the error of the instrument and the running status of the instrument in real time, so as to ensure the normal operation of the instrument;

5. Through the hydraulic cylinder and the anti-skid base set in the present invention, the anti-skid base can contact the ground by extending the hydraulic cylinder during use, so as to control the height of the entire equipment by controlling the length of the hydraulic cylinder. The door of the maintenance box can be opened to repair the electrical components inside the outer box of the equipment, and the heat dissipation network can be set up to effectively dissipate heat for each electrical component inside the outer box of the equipment, effectively preventing the internal damage caused by long-term operation. The internal temperature of the equipment is too high, which affects the service life of the equipment.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

2 is a cross-sectional view of a crash plate according to an embodiment of the present invention;

3 is a schematic structural diagram of a handheld terminal display according to an embodiment of the present invention;

4 is a front view of the groove in the detection device according to the embodiment of the present invention;

5 is a cross-sectional view of the steel wheel in the detection device according to the embodiment of the present invention;

Fig. 6 is the sectional view of the outer box of the embodiment of the present invention;

Reference symbols in the figure: outer box 1, LED display screen 2, push handle 3, data transmission end 4, wire 5, handheld terminal display 6, display terminal 7, first control switch 8, built-in display screen 9, The second control switch 10, the hinge 11, the maintenance box door 12, the anti-collision plate 13, the buffer pad 14, the hydraulic cylinder 15, the anti-skid base 16, the drum 17, the groove 18, the electromagnetic probe 19, the sliding rod 20, the sliding block 21 , damping spring 22, connecting rod 23, transmission rod 24, motor box 25, motor 26, chute 27, threaded screw 28, limit block 29, slider 30, fixing clip 31, running indicator 32.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example: As shown in Figures 1-6, a thickness detection device suitable for steel bridge deck EA-10 includes an outer box 1, a groove 18 is opened in the middle part of the lower surface of the outer box 1, and the inner middle of the groove 18 is Electromagnetic probes 19 are provided in part through sliding, and a chute 27 is provided on the inner side surface of the outer box 1. The upper end of the chute 27 is fixedly connected with a motor box 25, and a motor 26 is arranged inside the motor box 25. The lower end of the motor 26 drives A threaded screw 28 is connected, and the threaded screw 28 is arranged inside the chute 27, the lower end of the threaded screw 28 is provided with a limiting block 29, and the surface of the threaded screw 28 is threadedly connected with a slider 30, one of the sliders 30 is threaded. The side surface is fixedly connected with a fixing clip 31, the upper end of the electromagnetic probe 19 is arranged inside the outer box 1 through a connecting wire, the inner part of the fixing clip 31 is fixedly connected with a connecting wire, and the upper surface of the outer box 1 is provided with a data transmission end 4, data transmission Terminal 4 is provided with several,

In the present invention, the electromagnetic probe 19 is provided, and the device is moved to the steel bridge deck when in use, and electromagnetic signals are emitted to the steel bridge deck through the electromagnetic probe 19, and the steel bridge can be directly calculated according to the corresponding relationship of the signal difference of the electromagnetic probe. The thickness of the asphalt pavement makes the detection process more convenient and quick, and effectively avoids the traditional detection method, which is to detect the thickness manually by using the detection equipment. This detection method not only has limited detection accuracy, but also the detection process is generally more troublesome. , There is a certain limitation in use. When the detection is required, the electromagnetic probe 19 is controlled to descend, and an electromagnetic signal is generated to the steel plate on the surface of the steel bridge through the electromagnetic probe 19. According to the electromagnetic field theory, the coil is a strict magnetic dipole. When the signal When the source supplies alternating current, it radiates an electromagnetic field to the outside world. The steel deck surface steel plate is an electric dipole, which receives the external electric field, thereby generating an induced current whose size is distributed along the steel deck surface steel plate.

The induced current of the steel plate on the steel deck surface re-radiates an electromagnetic field (ie, a secondary field) to the outside world, which causes the original excitation coil to generate an induced electromotive force, so that the output voltage of the coil changes. This change determines the position of the steel deck surface steel plate and the thickness of its asphalt pavement, and when it is directly above the steel deck surface steel plate, the output voltage of the coil is affected by the secondary magnetic field generated by the steel deck surface steel plate. The response is the largest, so during the test, during the movement of the probe, the most affected point, that is, the point with the largest signal value, can be automatically locked, and the thickness value can be obtained according to the corresponding relationship between the asphalt pavement thickness and the signal. It is displayed by the display terminal 7 on the handheld terminal display 6, so as to achieve the purpose of detecting the thickness of the steel bridge deck, which is very convenient and quick to use. The present invention can drive the screw thread through the motor 26 when in use. The rod 28 rotates, thereby driving the slider 30 threaded on the surface of the threaded screw 28 to move up and down inside the chute 27 , and the connecting wire with the electromagnetic probe 19 is fixed on one side surface of the slider 30 through the fixing clip 31 , the electromagnetic probe 19 can be moved up and down at the inner lower end of the outer box 1 through the lifting and lowering of the slider 30, and the electromagnetic probe 19 can be retracted into the interior of the outer box 1 when not in use, thereby effectively preventing the electromagnetic probe 19 from being damaged when the device is moving. For the problem of damage caused by the collision of obstacles on the road, the present invention can effectively limit the sliding distance of the slider 30 inside the chute 27 by the limit block 29 provided in the present invention, so as to prevent the slider 30 from sliding beyond the limit block 29. cause damage to the device.

In the present invention, the anti-collision plate 13 is provided to effectively prevent the equipment from hitting the roadside or other items during the pushing process, causing damage to the electrical components and the display inside the device. Through the set data transmission terminal 4, the handheld terminal display 6 can be connected through the data transmission terminal 4, and the detection result of the equipment on the steel bridge deck can be observed more intuitively through the handheld terminal display 6. More convenient and faster.

One side of the data transmission end 4 is electrically connected with the handheld terminal display 6 through the wire 5. Specifically, the upper surface of the handheld terminal display 6 is respectively provided with a display terminal 7 and a first control switch 8, and the first control Several switches 8 are provided.

In the present invention, the middle part of the upper surface of the outer box 1 is provided with an LED display screen 2, a corner of the upper surface of the outer box 1 is provided with a running indicator 32; The second control switch 10 is provided with several second control switches. The built-in display screen 9 can display the error of the instrument and the operating state of the instrument in real time, thereby ensuring the normal operation of the instrument.

The four corners of the lower surface of the outer box 1 are fixedly connected with anti-skid bases 16 through hydraulic cylinders 15, and several hydraulic cylinders 15 and anti-skid bases 16 are provided. The cylinder 15 thus makes the anti-skid base 16 contact the ground, thereby controlling the height of the entire equipment by controlling the length of the hydraulic cylinder 15 .

One side surface of the outer box 1 is hinged with a maintenance box door 12 through a hinge 11, and a heat dissipation net is installed inside the maintenance box door 12. Through the set maintenance box door 12, the maintenance box door 12 can be opened when in use. Through the set heat dissipation network, the heat dissipation treatment can be effectively carried out on the electrical components in the outer box 1 of the equipment, which can effectively prevent the internal temperature of the equipment from being too high due to long-term operation and affect the equipment. The problem of long service life; wherein, a side surface of the maintenance box door 12 is fixedly connected with a bumper plate 13 through a fixing block, and a buffer pad 14 is provided on one side surface of the bumper plate 13 . Moreover, a push handle 3 is fixedly connected to one side surface of the outer case 1 .

The four corners of the inner bottom end of the outer box 1 are all slidably connected with transmission rods 24, four transmission rods 24 are provided, the lower ends of the four transmission rods 24 are all provided with steel wheels 17, and the inner lower end of the outer box 1 is provided with sliding rods 20 , a sliding block 21 is slidably connected to the surface of the sliding rod 20, and a shock absorbing spring 22 is arranged between the sliding block 21 and the inner side wall of the outer box 1, and the shock absorbing spring 22 is arranged on the surface of the sliding rod 20. The sliding block 21 and the transmission A connecting rod 23 is arranged between the rods 24, and the upper end of the connecting rod 23 is rotatably connected to the lower surface of the sliding block 21, and the lower end of the connecting rod 23 is rotatably connected to the upper end of the transmission rod 24, through the provided steel wheel 17, and the steel wheel 17 is slidably connected to the four corners of the inner lower surface of the outer box 1 through the transmission rod 24. Through the mutual cooperation of the transmission rod 24 and the shock-absorbing spring 22, when the equipment is moved, the vibration force on the outer box 1 of the equipment can be effectively reduced , so as to protect the electrical components and various displays inside the equipment outer box 1 , so as to protect the device from being damaged and prolong the service life of the device.

The working principle and use process of the present invention: when in use, push the device to a designated position through the push handle 3, and detect the thickness of the steel bridge deck. After the device is pushed to the designated position, the first control switch 8 or the second control The switch 10 controls the extension of the hydraulic cylinder 15, so that the anti-skid base 16 contacts the ground until the drum 17 leaves the ground, and then the extension or shortening of the hydraulic cylinder 15 is controlled by the first control switch 8 or the second control switch 10, thereby adjusting the entire equipment It is very convenient to use, and then the threaded screw 28 is driven to rotate by the motor 26 arranged on the inner surface of the outer box 1, so that the slider 30 threadedly connected to the surface of the threaded screw 28 can be moved inside the chute 27. Lifting and lowering, and because the connecting wire equipped with the electromagnetic probe 19 is fixedly connected to one side surface of the slider 30 through the fixing clip 31, the electromagnetic probe 19 can be driven on the inner lower surface of the outer box 1 by sliding the slider 30 up and down. When the height rises and falls, when it needs to be detected, the electromagnetic probe 19 is controlled to descend, and an electromagnetic signal is generated to the steel bridge deck through the electromagnetic probe 19. According to the electromagnetic field theory, the coil is a strict magnetic dipole. The electromagnetic field is radiated from the outside, and the steel plate on the surface of the steel bridge deck is an electric dipole, which receives the external electric field, thereby generating an induced current whose size is distributed along the steel plate on the surface of the steel bridge deck. The induced current of the steel plate on the steel deck surface re-radiates an electromagnetic field (ie, a secondary field) to the outside world, which causes the original excitation coil to generate an induced electromotive force, so that the output voltage of the coil changes. This change determines the position of the steel deck surface steel plate and the thickness of its asphalt pavement, and when it is directly above the steel deck surface steel plate, the output voltage of the coil is affected by the secondary magnetic field generated by the steel deck surface steel plate. The response is the largest, so during the test, during the movement of the probe, the most affected point, that is, the point with the largest signal value, can be automatically locked, and the thickness value can be obtained according to the corresponding relationship between the asphalt pavement thickness and the signal. It is displayed by the display terminal 7 on the handheld terminal display 6, so as to realize the purpose of detecting the thickness of the asphalt pavement of the steel bridge deck, which is very convenient and quick to use.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; thus , the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figure are used more in this article: the outer box 1, the LED display screen 2, the push handle 3, the data transmission end 4, the wire 5, the handheld terminal display 6, the display terminal 7, the first control switch 8, Built-in display screen 9, second control switch 10, hinge 11, maintenance box door 12, anti-collision plate 13, buffer pad 14, hydraulic cylinder 15, anti-skid base 16, steel wheel 17, groove 18, electromagnetic probe 19, Sliding rod 20, sliding block 21, damping spring 22, connecting rod 23, transmission rod 24, motor box 25, motor 26, chute 27, threaded screw 28, limit block 29, slider 30, fixing clip 31, Terms such as run light 32 are used, but do not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation.

Claims (10)

1. A thickness detection device suitable for steel bridge deck EA-10, characterized in that: it comprises an outer box (1), and the middle part of the lower surface of the outer box (1) is provided with a groove (18), and the groove ( The inner middle part of 18) is provided with an electromagnetic probe (19) through sliding, and a chute (27) is opened on the inner side surface of the outer box (1), and the upper end of the chute (27) is fixedly connected with a motor box (25), A motor (26) is arranged inside the motor box (25), and a threaded screw (28) is connected to the lower end of the motor (26) for transmission, and the screwed screw (28) is arranged inside the chute (27). The lower end of (28) is provided with a limiting block (29), a slider (30) is threadedly connected to the surface of the threaded screw (28), and a fixing clip (31) is fixedly connected to one side surface of the slider (30). The upper end of the electromagnetic probe (19) is arranged inside the outer box (1) through the connecting wire, the connecting wire is fixedly connected to the inside of the fixing clip (31), and the upper surface of the outer box (1) is provided with a plurality of data transmission end (4). 2 . The thickness detection device for steel bridge deck EA-10 according to claim 1 , wherein a hand-held terminal is electrically connected to one side of the data transmission end ( 4 ) through a wire ( 5 ). 3 . Display (6). 3. A thickness detection device suitable for steel bridge deck EA-10 according to claim 2, characterized in that: the upper surface of the handheld terminal display (6) is respectively provided with a display terminal (7) and a first A control switch (8) is provided, and several first control switches (8) are provided. 4. A thickness detection device suitable for steel bridge deck EA-10 according to claim 1, characterized in that: an LED display screen (2) is provided in the middle part of the upper surface of the outer box (1), and the A running indicator light (32) is installed on a corner of the upper surface of the outer box (1). 5. A thickness detection device suitable for steel bridge deck EA-10 according to claim 4, characterized in that: one side surface of the outer box (1) is respectively provided with an embedded display screen (9) and The second control switch (10) is provided with several second control switches (10). 6. The EA-10 thickness detection device suitable for steel bridge decks according to claim 5, characterized in that: the four corners of the lower surface of the outer box (1) are fixedly connected with anti-skid bases through hydraulic cylinders (15). (16), several hydraulic cylinders (15) and anti-skid bases (16) are provided. 7. A thickness detection device suitable for steel bridge deck EA-10 according to claim 6, characterized in that: a side surface of the outer box (1) is hinged with a maintenance box door (12) through a hinge (11). ), a cooling net is installed inside the maintenance box door (12). 8. A thickness detection device suitable for steel bridge deck EA-10 according to claim 7, characterized in that: a side surface of the maintenance box door (12) is fixedly connected with an anti-collision plate (13) through a fixing block ), a buffer pad (14) is provided on one side surface of the anti-collision plate (13). 9 . The thickness detection device for steel bridge deck EA-10 according to claim 8 , wherein a push handle ( 3 ) is fixedly connected to one side surface of the outer box ( 1 ). 10 . 10 . The thickness detection device for steel bridge deck EA-10 according to claim 9 , wherein the four corners of the inner bottom end of the outer box ( 1 ) are slidably connected with transmission rods ( 24 ), There are four transmission rods (24), the lower ends of the four transmission rods (24) are all provided with steel wheels (17), and the inner lower end of the outer box (1) is provided with a sliding rod (20), A sliding block (21) is slidably connected to the surface of the sliding rod (20), and a shock-absorbing spring (22) is arranged between the sliding block (21) and the inner side wall of the outer box (1). The spring (22) is arranged on the surface of the sliding rod (20), a connecting rod (23) is arranged between the sliding block (21) and the transmission rod (24), and the upper end of the connecting rod (23) is rotatably connected to the On the lower surface of the sliding block (21), the lower end of the connecting rod (23) is rotatably connected to the upper end of the transmission rod (24).

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