CN217934774U - Portable handcart detection device - Google Patents
Portable handcart detection device Download PDFInfo
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- CN217934774U CN217934774U CN202221424538.1U CN202221424538U CN217934774U CN 217934774 U CN217934774 U CN 217934774U CN 202221424538 U CN202221424538 U CN 202221424538U CN 217934774 U CN217934774 U CN 217934774U
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Abstract
The utility model discloses a portable handcart detection device, which comprises a shell, wherein an integrated circuit is arranged in the shell, and the integrated circuit comprises a power circuit, a sound meter driving circuit, a protection circuit and a universal meter direct current measurement circuit; the power supply circuit comprises a 220V power supply, the 220V power supply is connected with a main switch S1, the main switch S1 is respectively connected with a 220V output circuit, a first direct current voltage reduction circuit, a second direct current voltage reduction circuit and a protection circuit, the first direct current voltage reduction circuit is connected with a 110V output port, and the second direct current voltage reduction circuit is connected with a response meter driving circuit; generally, the utility model has the advantages of portable, detection efficiency is high, the security is high.
Description
Technical Field
The utility model relates to a handcart detection device, concretely relates to portable handcart detection device.
Background
The handcart switch is a core control component of a power distribution network, the operation reliability of the handcart switch is directly related to the power supply reliability of the whole power distribution network, and meanwhile, the handcart switch is related to the personal benefits of power utilization customers and the economic benefits of power enterprises. When a 10kV handcart switch control loop and an energy storage loop are detected at present, a handcart is pulled to a test position, and according to a switch specification, the quality of each node and the on-off state of a circuit are detected one by using a sound meter method for a universal meter at a line cap corresponding to a handcart switch terminal row secondary original piece.
Although a loop can be measured by adopting a sound meter method, the actual fault discharge needs to be considered more situations and is easy to make mistakes, so that the loop tends to be measured by adopting a potential method in actual measurement, the potential measured by the potential method at one point is more direct, and the fault can be detected without excessive consideration.
Therefore, in order to solve the above problems, it is necessary to develop a portable handcart detecting device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, and provide a portable handcart detection device, can provide the power to the handcart, can utilize the potentiometre to carry out the return circuit in overhauing the position and detect, effectively improve the security performance.
The purpose of the utility model is realized like this: a portable handcart detection device comprises a shell, wherein an integrated circuit is arranged in the shell and comprises a power circuit, a sound meter driving circuit, a protection circuit and a universal meter direct current measurement circuit; the power supply circuit comprises a 220V power supply, the 220V power supply is connected with a main switch S1, the main switch S1 is respectively connected with a 220V output circuit, a first direct current voltage reduction circuit, a second direct current voltage reduction circuit and a protection circuit, the first direct current voltage reduction circuit is connected with a 110V output port, and the second direct current voltage reduction circuit is connected with a response meter driving circuit; the 220V output circuit comprises a switch S2 connected with a main switch S1, the switch S2 is connected with the anode of a 220V output port, and the cathode of the 220V output port is connected with the cathode of a 220V power supply; the first direct current voltage reduction circuit comprises a switch S3 connected with a main switch S1, the switch S3 is connected with an inductor L1 and a diode D1 which are connected in parallel, the other end of the inductor L1 is respectively connected with a capacitor C1, a resistor R1 and the anode of a 110V output port, and the other ends of the diode D1, the capacitor C1 and the resistor R1 are respectively connected with the cathode of a 220V power supply and the cathode of the 110 output port; the second direct current voltage reduction circuit comprises a switch S4 connected with a main switch S1, the switch S4 is connected with an inductor L2 and a diode D2 which are connected in parallel, the other end of the inductor L2 is respectively connected with the anodes of a capacitor C2, a resistor R2 and a 5V output port, the other ends of the diode D2, the capacitor C2 and the resistor R2 are respectively connected with the cathode of a 220V power supply and the cathode of a 5V output port, and the 5V output port is connected with a sound meter driving circuit.
The 5V output port is connected with a sound meter driving circuit, the sound meter driving circuit comprises a resistor R11 and a resistor R12 which are connected with the positive electrode of the 5V output port, the other end of the resistor R11 is connected with the + input end and the resistor R13 of a voltage comparator, the other end of the resistor R12 is connected with the-input end and the tested end of the voltage comparator, the output end of the voltage comparator is connected with the + input end of a buzzer, and the-output end of the buzzer and the other end of the resistor R13 are respectively connected with the negative electrode of the 5V output port and the tested end.
The direct current measuring circuit of the universal meter comprises a direct current measuring circuit and a direct voltage measuring circuit, the direct current measuring circuit comprises a meter head and a shunt resistor connected with the meter head in parallel, and two ends of the shunt resistor are connected with a measured end; the direct-current voltage measuring circuit comprises a meter head and a voltage reduction resistor connected with the meter head in series, wherein one end of the voltage reduction resistor and the other end of the meter head are connected with a measured end.
The improved meter is characterized in that a power circuit start-stop button, a power regulation button, a sound meter driving circuit start-stop button, a sound meter driving circuit detected end wiring hole and a plurality of groups of pluggable wiring holes are arranged on the shell panel, and a universal meter dial, a change-over switch and a plug wire hole are further arranged on the shell panel.
The protection circuit is connected with a 220V power supply and a main switch S1 of the power supply circuit, the protection circuit comprises an air switch, a relay, a green indicator light and a red indicator light, and the green indicator light and the red indicator light are arranged on a panel of the shell.
The beneficial effects of the utility model are that: the utility model discloses in through integrated power supply circuit, sound table drive circuit and universal meter direct current measuring circuit, can draw forth the power cord by the power wiring end of device and insert the positive and negative electrode that the handcart was inserted by plane, supply power to the handcart through power supply circuit, as long as know the circuit diagram of handcart, can give the electricity fast in the maintenance position, and utilize the potentiometry to carry out the return circuit inspection, fast and safe directly perceived convenient, effectively improve the security simultaneously, the integrated form structure is portable more; by arranging the protection circuit with the functions of anti-tripping and alarming in the device, if the current or voltage in the device has a problem, the power supply can be cut off and the alarm can be given, so that the safety performance is higher; generally, the utility model has the advantages of portable, detection efficiency is high, the security is high.
Drawings
Fig. 1 is a schematic structural diagram of the housing of the present invention.
Fig. 2 is a circuit diagram of the power circuit and the sound meter driving circuit of the present invention.
Fig. 3 is a schematic diagram of the direct current measurement circuit of the utility model discloses well universal meter.
In the figure: 1. the device comprises a shell 101, a power circuit start-stop button 102, an adjusting power button 103, a sound meter driving circuit start-stop button 104, a sound meter driving circuit detected end wiring hole 105, a plug-in wiring hole 106, a dial 107, a change-over switch 108, a wire inserting hole 109, a green indicator lamp 1010 and a red indicator lamp.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings.
As shown in fig. 1, fig. 2 and fig. 3, the portable handcart detection device comprises a shell 1, wherein an integrated circuit is arranged inside the shell 1, and the integrated circuit comprises a power circuit, a sound meter driving circuit, a protection circuit and a multimeter direct current measurement circuit.
The power supply circuit comprises a 220V power supply, the 220V power supply is connected with a main switch S1, the main switch S1 is respectively connected with a 220V output circuit, a first direct current voltage reduction circuit, a second direct current voltage reduction circuit and a protection circuit, the first direct current voltage reduction circuit is connected with a 110V output port, and the second direct current voltage reduction circuit is connected with a response meter driving circuit.
The 220V output circuit comprises a switch S2 connected with a main switch S1, the switch S2 is connected with the anode of a 220V output port, and the cathode of the 220V output port is connected with the cathode of a 220V power supply.
The first direct current voltage reduction circuit comprises a switch S3 connected with a main switch S1, the switch S3 is connected with an inductor L1 and a diode D1 which are connected in parallel, the other end of the inductor L1 is respectively connected with the positive electrodes of a capacitor C1, a resistor R1 and a 110V output port, and the other ends of the diode D1, the capacitor C1 and the resistor R1 are respectively connected with the negative electrode of a 220V power supply and the negative electrode of the 110 output port.
The second direct-current voltage reduction circuit comprises a switch S4 connected with a main switch S1, the switch S4 is connected with an inductor L2 and a diode D2 which are connected in parallel, the other end of the inductor L2 is respectively connected with the positive electrodes of a capacitor C2, a resistor R2 and a 5V output port, the other ends of the diode D2, the capacitor C2 and the resistor R2 are respectively connected with the negative electrode of a 220V power supply and the negative electrode of the 5V output port, the 5V output port is connected with a sound meter driving circuit, the sound meter driving circuit comprises a resistor R11 and a resistor R12 which are connected with the positive electrode of the 5V output port, the other end of the resistor R11 is connected with a + input end and a resistor R13 of a voltage comparator, the other end of the resistor R12 is connected with a-input end and a tested end of the voltage comparator, the output end of the voltage comparator is connected with a + input end of a buzzer, and the other end of the-output end and the resistor R13 are respectively connected with the 5V output port and the tested end.
The direct current measuring circuit of the universal meter comprises a direct current measuring circuit and a direct voltage measuring circuit, the direct current measuring circuit comprises a meter head and a shunt resistor connected with the meter head in parallel, and two ends of the shunt resistor are connected with a measured end; the direct-current voltage measuring circuit comprises a meter head and a voltage-reducing resistor connected with the meter head in series, wherein one end of the voltage-reducing resistor and the other end of the meter head are connected with a measured end; it should be noted that the multimeter dc measurement circuit belongs to a part of a multimeter circuit in the prior art, and may be directly integrated into an integrated circuit in the present application, and meanwhile, a power supply required by the multimeter dc measurement circuit may be implemented by directly setting a power supply suitable for a multimeter, or by setting the aforementioned dc step-down circuit in the present application to connect with a 220V power supply in the present application to supply power to the multimeter dc measurement circuit, and the like.
A power circuit start-stop button 101, a power adjusting button 102, a sound meter driving circuit start-stop button 103, a sound meter driving circuit tested end wiring hole 104 and a plurality of groups of plug-in wiring holes 105 are arranged on a panel of the shell 1, the power circuit start-stop button 101 corresponds to a main switch S1 in a power circuit and is used for controlling the start and stop of the whole power circuit, the power adjusting button 102 is used for adjusting the magnitude of output voltage and corresponds to a switch S2 of a 220V output circuit and a switch S3 of a first DC buck circuit in the power circuit, the magnitude of the output voltage and the magnitude of voltage output by the plug-in wiring hole 105 end can be adjusted by adjusting the power button 102, the plug-in wiring hole 105 corresponds to a 220V output port in the power circuit and a 110V output port of the first DC buck circuit, and the sound meter driving circuit start-stop button 103 corresponds to a switch S4 in a second DC buck circuit and is used for starting the sound meter driving circuit; the panel of the shell 1 is also provided with a dial 106 of a multimeter direct current measurement circuit, a change-over switch 107 and a wire insertion hole 108.
The protection circuit is connected with a 220V power supply of the power supply circuit and a main switch S1, the protection circuit can comprise an air switch, a relay, a green indicator lamp 109 and a red indicator lamp 1010, the green indicator lamp 109 and the red indicator lamp 1010 are arranged on a panel of the shell 1, the protection circuit is mainly used for protecting the safety of the device, when the current and the voltage in the device have problems, the power supply can be cut off and an alarm can be given, the specific circuit connection structure can be realized through various implementation modes, and the protection circuit belongs to common knowledge for technicians in the field, so that the protection circuit is not limited in detail.
The utility model discloses during the implementation, start the power supply through power supply circuit start-stop button on the shell, adjust plug-in wiring hole end power to suitable output through adjusting power supply button, then through plug-in wiring hole external power cord, the handcart navigation plug's positive negative electrode department is connected to the power cord other end, for the handcart power supply, then accessible sound table drive circuit start-stop button starts sound table drive circuit, and utilize the potentiometry to detect the handcart through sound table drive circuit detected end wiring hole wiring, perhaps can also carry out wiring detection through the plug wire hole of universal meter direct current measuring circuit detected end, it is more convenient; it should be noted that, since the other end of the power cord is connected to the pin of the hand truck navigation plug, one end of the connecting pin should be a slender hollow hat-shaped structure, just to enable the pin to be inserted, which is common knowledge for those skilled in the art, and is not limited herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a portable handcart detection device which characterized in that: the device comprises a shell (1), wherein an integrated circuit is arranged in the shell (1), and the integrated circuit comprises a power circuit, a sound meter driving circuit, a protection circuit and a universal meter direct current measurement circuit; the power supply circuit comprises a 220V power supply, the 220V power supply is connected with a main switch S1, the main switch S1 is respectively connected with a 220V output circuit, a first direct current voltage reduction circuit, a second direct current voltage reduction circuit and a protection circuit, the first direct current voltage reduction circuit is connected with a 110V output port, and the second direct current voltage reduction circuit is connected with a response meter driving circuit; the 220V output circuit comprises a switch S2 connected with a main switch S1, the switch S2 is connected with the anode of a 220V output port, and the cathode of the 220V output port is connected with the cathode of a 220V power supply; the first direct current voltage reduction circuit comprises a switch S3 connected with a main switch S1, the switch S3 is connected with an inductor L1 and a diode D1 which are connected in parallel, the other end of the inductor L1 is respectively connected with a capacitor C1, a resistor R1 and the anode of the output port of 110V, and the other ends of the diode D1, the capacitor C1 and the resistor R1 are respectively connected with the cathode of the 220V power supply and the cathode of the output port of 110V; the second direct current voltage reduction circuit comprises a switch S4 connected with a main switch S1, the switch S4 is connected with an inductor L2 and a diode D2 which are connected in parallel, the other end of the inductor L2 is respectively connected with the positive electrodes of a capacitor C2, a resistor R2 and a 5V output port, the other ends of the diode D2, the capacitor C2 and the resistor R2 are respectively connected with the negative electrode of a 220V power supply and the negative electrode of the 5V output port, and the 5V output port is connected with a sound meter driving circuit.
2. The portable handcart detecting device of claim 1, wherein: the 5V output port is connected with a sound meter driving circuit, the sound meter driving circuit comprises a resistor R11 and a resistor R12 which are connected with the positive electrode of the 5V output port, the other end of the resistor R11 is connected with a + input end and a resistor R13 of a voltage comparator, the other end of the resistor R12 is connected with a-input end and a tested end of the voltage comparator, the output end of the voltage comparator is connected with a + input end of a buzzer, and the-output end of the buzzer and the other end of the resistor R13 are respectively connected with the negative electrode of the 5V output port and the tested end.
3. The portable handcart detecting device of claim 1, wherein: the direct current measuring circuit of the universal meter comprises a direct current measuring circuit and a direct voltage measuring circuit, the direct current measuring circuit comprises a meter head and a shunt resistor connected with the meter head in parallel, and two ends of the shunt resistor are connected with a measured end; the direct-current voltage measuring circuit comprises a meter head and a voltage reduction resistor connected with the meter head in series, wherein one end of the voltage reduction resistor and the other end of the meter head are connected with a measured end.
4. The portable handcart detecting device of claim 1, wherein: the panel of the shell (1) is provided with a power circuit start-stop button (101), a power regulation button (102) and a plurality of groups of plug-in wiring holes (105).
5. The portable handcart detecting device of claim 2, wherein: a sound meter driving circuit start-stop button (103) and a sound meter driving circuit detected end wiring hole (104) are arranged on a panel of the shell (1).
6. A portable hand truck detection apparatus according to claim 3, characterized in that: the panel of the shell (1) is also provided with a dial plate (106), a change-over switch (107) and a plug wire hole (108) of the universal meter direct current measuring circuit.
7. The portable handcart detecting device of claim 1, wherein: the protection circuit is connected with the 220V power supply and the main switch S1 of the power supply circuit, the protection circuit comprises an air switch, a relay, a green indicator lamp (109) and a red indicator lamp (1010), and the green indicator lamp (109) and the red indicator lamp (1010) are arranged on a panel of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221424538.1U CN217934774U (en) | 2022-06-09 | 2022-06-09 | Portable handcart detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221424538.1U CN217934774U (en) | 2022-06-09 | 2022-06-09 | Portable handcart detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217934774U true CN217934774U (en) | 2022-11-29 |
Family
ID=84180533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221424538.1U Active CN217934774U (en) | 2022-06-09 | 2022-06-09 | Portable handcart detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217934774U (en) |
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2022
- 2022-06-09 CN CN202221424538.1U patent/CN217934774U/en active Active
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