CN106512337A - Pressure induced alarming foot fastener - Google Patents

Abstract

The invention discloses a pressure-sensing alarm foot buckle, which relates to the technical field of electric power maintenance. It includes the foot pedal, the pressure sensor on the anti-skid device, the first alarm device, the voltage detection device, the telescopic arm and the operating gloves. end, the first alarm device is located on the side of the metal cavity mouth of the telescopic arm, the output of the pressure sensor is connected to the first alarm device, the voltage detection device includes an arc detection wire, a voltage sensor and a second alarm device, and the arc detection wire is located at In the telescopic arm, it is connected to the voltage sensor located on the side of the telescopic arm, and the voltage sensor is connected to the second alarm, which is located on the operating glove, and can accurately detect whether the force-bearing surface of the foot buckle is in contact with the surface of the pole Adequate, increase the safety and security of staff, reduce the number of accidents.

Description

A pressure-sensitive alarm foot buckle

technical field

The invention relates to the technical field of electric power maintenance.

Background technique

The currently used foot buckle has the advantages of simple and reliable structure and low cost, but there are still shortcomings. When using the foot buckle to climb the pole, can the force-bearing surface of the foot buckle be fully contacted with the surface of the pole, and the normal force can be used to Generating enough friction is an important factor to ensure the safety of climbing poles. In the process of climbing the pole, it is generally judged whether the foot buckle is fastened by personal experience, which cannot effectively guarantee the safety of the staff, and there is a certain risk. How to utilize the high-speed development of electronic technology and high-tech materials to improve the performance of all aspects of the foot buckle, improve or develop a new type of foot buckle, is a very necessary work.

Contents of the invention

The technical problem to be solved by the present invention is to provide a pressure-sensing alarm foot buckle for the above-mentioned deficiencies in the prior art, which can accurately detect whether the force-bearing surface of the foot buckle and the surface of the pole are connected by combining the pressure sensor with the existing foot buckle. Adequate contact increases the safety of staff and reduces the number of accidents.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A pressure-sensing alarm foot buckle is characterized in that it includes a pedal, a pressure sensor positioned on the anti-slip device, a first alarm device, a voltage detection device, a telescopic arm and operating gloves, the anti-slip device is connected to the telescopic arm, and the telescopic arm The rear part of the rear part is fixedly connected to the side end of the pedal, the first alarm device is located on the side of the metal cavity mouth of the telescopic arm, the output of the pressure sensor is connected to the first alarm device, the voltage detection device includes an arc detection wire, a voltage sensor Detector and the second alarm device, the arc detection wire is located in the telescopic arm, connected to the voltage sensor located on the side of the telescopic arm, the voltage sensor is connected to the second alarm, and the second alarm is located on the operating gloves.

As a further technical solution, it is characterized in that the foot board is a foldable board, including two boards at the front and back, and the middle is connected by a self-locking folding hinge.

As a further technical solution, it is characterized in that the front pedal of the pedal is provided with a tightening belt for controlling the tightness.

As a further technical solution, it is characterized in that the voltage sensor is connected to a second alarm through a wire, and the second alarm includes an indicator light and a whistle device.

As a further technical solution, it is characterized in that the components of the operation gloves are insulating materials.

As a further technical solution, it is characterized in that the anti-slip devices are respectively located at three positions of the front end, the middle end and the end of the telescopic arm.

As a further technical solution, it is characterized in that there are three pressure sensors, which are respectively located on the three anti-slip devices.

The beneficial effects produced by adopting the above technical solution are: the technical problem to be solved by the present invention is to provide a pressure-sensing alarm foot buckle for the above-mentioned deficiencies in the prior art. Detect whether the force-bearing surface of the foot buckle is in sufficient contact with the surface of the pole, increase the safety of the staff, and reduce the number of accidents.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of an alarm device of the present invention;

Fig. 3 is a schematic diagram of the voltage sensing device of the present invention.

In the figure: 1, foot pedal; 2, anti-skid device; 3, pressure sensor; 4, first alarm device; 5, voltage detection device; 6, telescopic arm; 7, operating gloves; 11, tightening belt; 51, 52, a voltage sensor; 53, a second alarm device; 531, an indicator light; 532, a whistle device.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, it is an embodiment of a pressure-sensitive alarm foot buckle of the present invention, including a pedal 1, a pressure sensor 3 located on the anti-skid device 2, a first alarm device 4, a voltage detection device 5, and a telescopic arm 6 and operating gloves 7, the anti-slip device 2 is connected to the telescopic arm 6, the rear end part of the telescopic arm 6 is fixedly connected to the side end of the pedal 1, the first alarm device 4 is located on the side of the metal cavity mouth of the telescopic arm 6, The output of the pressure sensor 3 is connected to the first alarm device 4. The voltage detection device 5 includes an arc detection wire 51, a voltage inductor 52 and a second alarm device 53. The arc detection wire 8 is located in the telescopic arm 6 and is connected to the telescopic arm 6. On the voltage sensor 52 on the side of the arm, the voltage sensor 52 is connected to a second alarm 53 , and the second alarm 53 is located on the operating glove 7 .

Preferably, the pedal 1 is a foldable pedal, including two pedals at the front and rear, connected in the middle by a self-locking folding hinge, and the front pedal of the pedal 1 is provided with a tightening belt 11 for controlling the tension. When the operator is climbing the pole, the rear pedal is folded down. After the operator reaches the working position on the pole, he pulls the foot buckle with his fingers, folds the hinge self-locking ring buckle, opens the auxiliary pedal until the foot buckle and the pedal are parallel, and the hinge hinges It can be locked automatically, and the operator can start working on the pole, which increases the contact area of the soles of the feet, prevents fatigue during operation, increases work efficiency, and improves the safety factor of operators working at heights. Pedal is also provided with the tightening band 11 of controlling elasticity, and the climber can adjust the size of tightening band 11 according to the size of own pin, guarantees that pin and pedal 1 are connected firmly, prevents pedal from slipping, and danger occurs.

Preferably, a heel stabilization device can also be added to the rear pedal, which further ensures the safety of the climber.

Preferably, the composition of the operating gloves 7 is an insulating material, which can isolate the power supply. The voltage sensor 52 is connected to the second alarm 53 through a wire, and the second alarm 53 is installed on the hand of the insulating glove 7. On the back side, it includes an indicator light 531 and a whistle device 532. The voltage detection device 5 also includes an arc-shaped detection wire 51, which is located in the telescopic arm 6, and detects the surroundings in time during the process of boarding the pole and operating on the pole. When the voltage value exceeds a certain specific safety value, the voltage sensor 52 will be transmitted to the second alarm device 53 located on the operating glove 7 in time. The second alarm device 53 includes an indicator light 531 and a whistle device 532 to indicate The lights 531 will all light up, and the siren 532 will sound an alarm.

Preferably, the anti-skid device 2 is respectively located at three positions of the front end, the middle end and the end of the telescopic arm 6. These three positions can accurately measure the contact area between the foot buckle of the climbing pole and the utility pole, so as to ensure the safety of the climbing pole personnel. There are three pressure sensors 3, which are respectively located on the three anti-slip devices 2, which can accurately measure the contact pressure between the climbing pole foot buckle and the utility pole.

As shown in Figure 2, U1 is a microprocessor STC89C52RC microcontroller; U2 is a radio frequency module nRF24L01; C1 and C2 are ceramic capacitors; C3 is an electrolytic capacitor; Y1 is a crystal oscillator; R1, R2, R3, R4 and R5 are resistors; K1 (as a reset button), K2 (as a start/stop button) and K3 (as a safety distance adjustment button) are normally open buttons; K4 (as an audible and visual alarm enable button) is a normally closed button; LS is a buzzer; D1, D2 and D3 are light emitting diodes.

Ceramic capacitors C1, C2 and crystal oscillator Y1 constitute the external oscillation circuit of the microprocessor STC89C52RC single-chip microcomputer, button K1, electrolytic capacitor C3 and resistor R1 constitute the reset circuit of the microprocessor STC89C52RC single-chip microcomputer, resistors R2, R3, NPN transistor N1, buzzer Device LS and LED D1 constitute the sound and light alarm circuit.

The pins 1, 2, 3, 4, 5 and 6 of the microprocessor U1 are respectively connected to the pins 3, 4, 5, 6, 7 and 8 of the wireless radio frequency module U2; the pins 18 and 19 are respectively connected to the crystal oscillator Y1 Two pins; pin 9 is connected to one end of button K1; pins 21, 22 and 23 are respectively connected to one end of button K2, one end of K3 and one end of K4; pin 24 is connected to one end of resistor R3; pin 38 and 39 are respectively connected to the anode of the light-emitting diode D2 and the anode of D3; pin 25 is connected to one end of the resistor R2; pin 20 is grounded, and pin 40 is connected to a 5-volt power supply;

The pin 1 of the wireless radio frequency module U2 is grounded, and the pin 2 is connected to a 3.3 volt power supply;

One end of the crystal oscillator Y1 is connected to one end of the ceramic capacitor C1, and the other end is connected to one end of the ceramic capacitor C2;

The other end of the ceramic capacitor C1 and the other end of the ceramic capacitor C2 are respectively grounded;

The other end of button K1 is connected to a 5V power supply;

The positive pole of the electrolytic capacitor C3 is connected to a 5-volt power supply;

One end of resistor R1 is connected to the negative pole of electrolytic capacitor C3, and the other end is grounded;

The other end of resistor R2 is connected to the base of NPN transistor N1;

The emitter of the NPN transistor N1 is connected to one end of the buzzer LS, and the collector is connected to the 5V power supply;

The other end of the buzzer LS is grounded;

The other end of key K2, the other end of K3 and the other end of K4 are respectively grounded;

The other end of resistor R3 is connected to the cathode of light-emitting diode D1;

The anode of light-emitting diode D1 is connected to the 5 volt power supply, the cathode of D2 is connected to one end of R4, and the cathode of D3 is connected to one end of R5;

The other end of the resistor R4 and the other end of the resistor R5 are respectively grounded;

The 3.3 V and 5 V power supplies are provided by an external DC power supply circuit.

As shown in Figure 3, the input terminal C is connected to the positive pole of a diode, and the negative pole is connected to the X contact of the switch and one end of the resistor, and the other end of the resistor is connected in series with the resistor, and the other end of the resistor is grounded. The series part of the resistance is connected to the y contact of the switch; the z contact of the switch is connected with a variable resistor and a zener diode is connected in series to ground, and the zener diode is connected in parallel with a coil of a relay. Part A of Fig. 3 is the circuit diagram of the "leakage voltage sensor" of the present invention, part B of Fig. 3 is the wiring diagram from the electromagnetic switch to the motor (electrical appliance), and its structure and function are described as follows: in the motor (or electrical appliances) when the ground wire of the shell has leakage current, due to the relationship of potential gradient, the distance from the ground rod (rod) gradually increases, and the voltage with the ground wire (rod) gradually increases, gradually increasing to the voltage of the working power supply to the ground, and the distance is only Tens of centimeters to one meter.

When the electric appliance leaks electricity, the shell of the motor has a voltage to the earth, and this voltage is half-wave rectified by the diode (for example, when the voltage of the working power supply to the ground is 110V), the half-wave rectified voltage drops to 55VDC when the switch is switched to the z position. The variable resistor and the coil of the relay divide the voltage. When the variable resistor is adjusted, the DC voltage of the coil rises to 6VDC, and then it acts, and the b contact of the relay is disconnected; at the same time, the coil of the electromagnetic switch is de-energized. Adjusting the variable resistor can adjust the voltage matching of the coil of the relay. And the operating voltage of the "leakage voltage sensor" of the present invention is set above 6V; at the installation site of the second grounding wire of the leakage voltage sensor A, the distance from the first grounding wire should be determined by connecting the electrical appliance with a wire Connect the first grounding wire of the casing to the power supply, and then use a voltmeter to measure the voltage between the ground where the second grounding rod is to be installed and the first grounding rod is equal to the voltage value of the power supply to the ground, then the second grounding wire can be installed on the ground and ground rods. If the voltage of the working power supply to the ground is 220V, switch the switch to the y position, then the direct current rectified by the diode half-wave can also be divided by the resistor to obtain the same result as above. The Zener diode protects the coil and limits the voltage to 6V to prevent the coil from being burnt due to excessive voltage.

Use process: before climbing the pole, the staff step on the pedal 1 first, adjust the tightness with the tightening belt 11 according to the size of the staff's feet, put on the operating gloves 7, and start climbing up the pole, usually the staff According to experience, it is judged whether the foot buckle is in good contact with the utility pole, and the friction force of the contact area is enough to bear the weight before continuing to climb upwards. This is not only inefficient but also relatively risky. Therefore, the present invention sets pressure sensing devices 3 on the three anti-skid devices 2 respectively. The friction force can be judged objectively. When one of the friction forces is less than the safe value, it will be sent to the first alarm device 4, and the first alarm device 4 will send out an alarm to remind the staff to adjust the angle, and continue until the alarm is eliminated. climb. At the same time, the foot buckle also includes a voltage-sensing alarm device. The arc-shaped detection wire 51 located in the telescopic arm 6 detects the voltage around it at any time during the process of climbing the pole and the operation process on the pole. When the voltage exceeds a certain safe value , the voltage sensor 52 will pass to the second alarm device 53 located on the operating glove 7. The second alarm device 53 includes an indicator light 531 and a whistle device 532. When the voltage value exceeds a certain safety value, the indicator light 531 will light up and the whistle device 532 will also remember at the same time, and it is different from the warning sound that the first alarm device 4 sends, the staff can judge the problem and take corresponding measures according to the warning sound.

The beneficial effects produced by adopting the above technical solution are: the technical problem to be solved by the present invention is to provide a pressure-sensing alarm foot buckle for the above-mentioned deficiencies in the prior art. Detect whether the force-bearing surface of the foot buckle is in sufficient contact with the surface of the pole, increase the safety of the staff, and reduce the number of accidents.

The above descriptions are only 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 should be included in the protection of the present invention. within range.

Claims (7)

1. a kind of pressure sensitive warning climbers, it is characterised in that：Including pedal（1）, positioned at shoe（2）On pressure pass Sensor（3）, the first alarm device（4）, voltage detection device（5）, telescopic arm（6）With operation glove（7）, shoe（2）Even It is connected to telescopic arm（6）On, telescopic arm（6）Rear end part be fixedly connected on pedal（1）Side, the first alarm device（4） Positioned at telescopic arm（6）Metal cavitg mouth side, pressure transducer（3）Output is connected to the first alarm device（4）On, voltage is visited Survey device（5）Including curved detector wire（51）, voltage sensor（52）With the second alarm device（53）, curved detector wire （8）Positioned at telescopic arm（6）It is interior, it is connected to the voltage sensor positioned at telescopic arm side（52）On, voltage sensor（52）Connection To the second alarm（53）On, the second alarm（53）Positioned at operation glove（7）On.

2. a kind of pressure sensitive warning climbers according to claim 1, it is characterised in that the pedal（1）For foldable Pedal, it is including two pieces of pedals of in front and back, middle to use self-locking folding hinge gemel connection.

3. a kind of pressure sensitive warning climbers according to claim 2, it is characterised in that the pedal（1）Front running board It is provided with the elastic fastening straps of control（11）.

4. a kind of pressure sensitive warning climbers according to claim 1, it is characterised in that the voltage sensor（52）It is logical Cross wire and be connected to the second alarm（53）On, second alarm（53）Including display lamp（531）And horn device （532）.

5. a kind of pressure sensitive warning climbers according to claim 1, it is characterised in that the operation glove（7）Composition For insulant.

6. a kind of pressure sensitive warning climbers according to claim 1, it is characterised in that the shoe（2）Difference position In telescopic arm（6）Front end, middle-end and the position of end three.

7. a kind of pressure sensitive warning climbers according to claim 6, it is characterised in that the pressure transducer（3）Have three It is individual, respectively positioned at three shoes（2）On.