CN217460166U - Electric power warning floor tile - Google Patents

Abstract

The utility model discloses an electric power warning ceramic tile, include: the floor tile body is laid on the ground, and the surface of the floor tile body is provided with a first cavity and a second cavity; the treading panel is arranged on the surface of the body and is provided with a fluorescent warning identification layer; the piezoelectric ceramic piece is arranged in the first cavity and is in contact with the lower surface of the treading panel through the elastic foaming rubber strip; the electric light source loop is arranged in the second chamber and is provided with a rechargeable battery and an LED lamp; the switch circuit board is arranged in the second cavity and is provided with a switch control circuit which is respectively coupled with the electric light source circuit and the piezoelectric ceramic piece; the piezoelectric ceramic piece senses a signal generated by the treading pressure transmitted by the foamed rubber strip and coming from the treading panel, and the trigger switch control circuit conducts the electric light source loop, so that the LED lamp is electrified to generate exposed warning light. The utility model discloses simple structure, preparation and use low cost, the warning effect is obvious, and durable is suitable for extensively using widely at electric power system.

Description

Electric power warning floor tile

Technical Field

The utility model relates to an electric power safety technical field especially relates to an electric power warning ceramic tile.

Background

Power cables often need to be buried beneath the ground in urban sidewalks or squares. However, in consideration of beauty and smooth walking guarantee, after the floor tiles for passing are covered on the existing buried cable, the obvious electric power identification is difficult to erect, so that the external force excavation required by municipal construction lacks an obvious warning function, and the cable is accidentally excavated to cause power failure accidents.

In order to avoid frequent occurrence of the conditions and ensure the safety and reliability of urban power supply, a floor tile device which is suitable for being applied to urban pedestrian roads or squares, does not influence pedestrians to pass through and has an obvious warning function is needed to be designed, and the occurrence frequency of accidents that cables are accidentally broken by digging is strived to be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide an electric power warning ceramic tile.

The utility model discloses a technical scheme who realizes above-mentioned purpose is:

a floor tile body having a first cavity and a second cavity on a surface thereof, the floor tile body being configured to be laid on a ground surface together with a municipal floor tile and to cover over a power cable buried under the ground surface;

the trampling panel is arranged on the surface of the floor tile body above the first cavity, and a fluorescent warning identification layer is arranged on the surface of the trampling panel;

the piezoelectric ceramic piece is arranged in the first cavity and is in contact with the lower surface of the treading panel through an elastic foaming rubber strip;

the electric light source loop is arranged in the second chamber and is provided with a rechargeable battery and an LED lamp;

the switch circuit board is arranged in the second cavity, and is provided with a switch control circuit which is respectively coupled with the electric light source loop and the piezoelectric ceramic piece;

the piezoelectric ceramic piece senses a signal which is transmitted by the foamed rubber strip and is generated by the treading pressure on the treading panel, and the switch control circuit is triggered to conduct the electric light source loop, so that the LED lamp is electrified to generate exposed warning light.

Furthermore, the switch control circuit is provided with a field effect transistor, the grid electrode of the field effect transistor is coupled with the piezoelectric ceramic piece, and the field effect transistor is connected in the electric light source loop through a source electrode and a drain electrode.

Furthermore, a first concave platform is arranged on the upper surface of the floor tile body and used for supporting the tread panel.

Furthermore, the height difference between the table top of the first platform and the upper surface of the floor tile body corresponds to the thickness of the tread plate.

Further, the first chamber is communicated with the second chamber through a groove.

Further, the foamed rubber strip penetrates through the first chamber and is in contact with the lower surface of the tread panel suspended on the first platform.

Further, the tread panel comprises a frosted tempered glass tread panel.

Compared with the prior art, the utility model has the advantages of it is following:

(1) when a person steps on the stepping panel of the floor tile, the piezoelectric ceramic piece is pressed through gravity, so that the piezoelectric ceramic piece is enabled to send out a pulse voltage signal to trigger the field effect transistor on the switch circuit board to be conducted, the LED lamp beads are enabled to flash for a short time, attention of people can be warned, and especially an obvious warning effect can be played at night.

(2) The fluorescent marks such as characters such as 'cables are arranged below', 'digging is strictly forbidden', and arrows can be printed on the treading panel, and the reminding function of the express can be achieved in the daytime and at night.

(3) The elastic foamed rubber pressing strip is arranged between the treading panel and the piezoelectric ceramic piece, so that the small pressure from the treading panel can be transmitted to the piezoelectric ceramic piece, the deformation pressing stroke of the treading panel is effectively reduced, and the sensitivity of triggering the conduction of the field effect transistor is improved.

(4) The piezoelectric ceramic piece is used as a conducting element of the trigger circuit, so that the control circuit is simplified, and the piezoelectric ceramic piece has the advantage that the circuit consumes little power when the trigger circuit is not triggered.

(5) Set up first platform and be used for supporting and trample the panel for trample the panel and place when the ceramic tile body on with the upper surface looks parallel and level of ceramic tile body, prevent to cause the hindrance to passing pedestrian's walking.

(6) The overall dimension of the floor tile body can be designed to be consistent with that of the existing municipal floor tile, the floor tile can be directly paved on the ground in a floor tile mode, the floor tile can be conveniently exchanged, the pedestrian traffic can not be hindered, and the floor tile body can keep harmony and unity with the surrounding environment while playing a warning role.

Drawings

Fig. 1 is a schematic structural view of a power warning floor tile according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a floor tile body according to a preferred embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an electric light source assembly according to a preferred embodiment of the present invention.

Fig. 4 is a schematic diagram illustrating an exploded structure of the electric light source assembly shown in fig. 3.

Fig. 5 is a schematic circuit diagram of a power warning tile according to a preferred embodiment of the present invention.

Detailed Description

In order to better understand the technical solution of the present invention, the present invention is described in detail through specific embodiments.

Please refer to fig. 1. The utility model discloses an electric power warning ceramic tile can include ceramic tile body 1, trample panel 5 to and several major structure component parts such as electric light source subassembly 2.

The floor tile body 1 may have the same size as a conventional municipal floor tile, and thus may be directly laid on the ground together with the conventional floor tile like a floor tile and cover the power cable buried under the ground. In this way, the tile body can be used with conventional tiles to form a surface support for a ground path or the like.

The tread panel 5 is arranged on the upper surface of the floor tile body 1; in addition, a fluorescent warning mark layer is also arranged on the upper surface of the treading panel 5.

The electric light source assembly 2 is arranged on the upper surface of the floor tile body 1 and is positioned outside the tread panel 5. The electric light source assembly 2 may include a power supply unit 3 and an electric light source 4, both the power supply unit 3 and the electric light source 4 being exposed to the upper surface of the tile body 1.

Please refer to fig. 2. The floor tile body 1 has a hollow cavity 10. The cavity 10 may be used to house a piezoelectric unit 24 (see fig. 5) and the electric light source assembly 2.

In a preferred embodiment, the chamber 10 may be provided as two chambers, including a first chamber 8 and a second chamber 9. Wherein, the first chamber 8 is arranged at a position below the tread panel 5 and can be used for accommodating the piezoelectric unit 24; the second chamber 9 is provided at a position other than the step panel 5, and can be used for accommodating the electric light source module 2 and the like. The first chamber 8 and the second chamber 9 can be communicated through a groove 11, and the groove 11 can be used for accommodating connection traces between the piezoelectric unit 24 and the electric light source assembly 2.

In a preferred embodiment, the upper surface of the floor tile body 1 can be provided with a first concave platform 6; the first platform 6 may be used to support the tread panel 5. Furthermore, the height difference between the top surface of the first platform 6 and the top surface of the floor tile body 1 corresponds to the thickness of the tread panel 5, so that when the tread panel 5 is placed on the floor tile body 1 and contained on the first platform 6, the top surface of the tread panel 5 is flush with the top surface of the floor tile body 1, thereby preventing the walking of the passing pedestrians from being obstructed.

In a preferred embodiment, a concave second platform 7 can be further arranged on the table top of the first platform 6; the second platform 7 is provided to have a gap between the lower surface of the tread panel 5 and the top surface of the second platform 7 when the tread panel 5 is placed on the first platform 6, so that when the tread panel 5 receives a tread pressure (gravity) from above, the tread panel is deformed downward by the gap with the second platform 7, and applies a pressure to the piezoelectric unit 24 in the first chamber 8 below the tread panel 5.

When the tread panel 5 is in the unstressed free state, the lower surface of the tread panel 5 is in contact with the piezoelectric unit 24 in the first chamber 8, but does not generate pressure on the piezoelectric unit 24. The piezo-electric unit 24 is caused to sense the pressure only when the tread panel 5 is deformed downward.

Please refer to fig. 5. The electric light source assembly 2 may further include a switching unit 25. The power supply unit 3 in the electric light source assembly 2 may include a power supply source 26; the power supply 26 is used to supply electrical energy to the electrical light source 4 and is formed in the electrical light source circuit 23 together with the electrical light source 4. The switch unit 25 is coupled to the piezoelectric unit 24, and the electric light source circuit 23 is coupled to the switch unit 25.

When the treading panel 5 is treaded, it will deform downwards under the action of pressure and transmit the pressure to the piezoelectric unit 24. When the piezoelectric unit 24 senses the pressure from the tread panel 5, a voltage signal is generated, and the switch unit 25 is triggered to be conducted in the electric light source loop 23, that is, the electric light source loop 23 is conducted, so that the power supply 26 in the electric light source loop 23 can supply power to the electric light source 4, the electric light source 4 in the electric light source loop 23 which is conducted through the switch unit 25 is electrically lighted, and is emitted from the opening of the second cavity 9 on the floor tile body 1, so that the light emitted by the electric light source 4 plays a warning role.

Please refer to fig. 3-5. In a preferred embodiment, the electric light source assembly 2 is accommodated in the second chamber 9 by a housing 12 corresponding to the second chamber 9. The power source 26 in the electric light source assembly 2 may include a battery or rechargeable battery 16, among others. When the electric light source circuit 23 is conductive, the electric light source 4 in the electric light source circuit 23 can be powered by the battery or the rechargeable battery 16. The batteries with insufficient electric energy or the rechargeable batteries 16 can be replaced during daily power patrol.

In a preferred embodiment, the rechargeable battery 16 is also connected to the solar panel 13 via the charging plate 18. The solar cell panel 13 is disposed to be exposed to the upper surface of the case 12, that is, to the upper surface of the floor tile body 1, and converts light energy into electric energy in daytime to charge the rechargeable battery 16. After the rechargeable battery 16 obtains electric energy, the electric light source circuit 23 is turned on to further supply power to the electric light source 4.

In a preferred embodiment, the switching unit 25 may include a field effect transistor Q1. For example, the switching unit 25 may be an NMOS transistor. The gate G of the NMOS transistor is connected to the piezoelectric element 24, and the source S and drain D of the NMOS transistor are connected to the electric light source circuit 23 between the electric light source 4 and the rechargeable battery 16.

In a preferred embodiment, the rechargeable battery 16 may include a lithium battery or the like.

In a preferred embodiment, the piezoelectric element 24 may comprise a piezoceramic wafer.

In a preferred embodiment, the electric light source 4 may comprise an LED (light emitting diode) light bead D1.

Please refer to fig. 3-5. In a preferred embodiment, the switch unit 25 may be disposed on one switch circuit board 19. The switch circuit board 19 is provided with a switch control circuit 22, the switch control circuit 22 is coupled to the electric light source circuit 23, the switch unit 25 is disposed in the switch control circuit 22, and the piezoelectric unit 24 is connected to the switch control circuit 22. For example, the field effect transistor Q1 may be provided in the switch control circuit 22 and on the switch circuit board 19; the piezoceramic wafer is connected to the switch control circuit 22 by means of wires housed in the recess 11 and is located in the first chamber 8 outside the switch circuit board 19.

In a preferred embodiment, the solar cell panel 13, the charging panel 18 and the rechargeable battery 16 are disposed in the box 12 from top to bottom, and the box 12 is placed in the second cavity 9, such that the solar cell panel 13 is exposed on the surface of the floor tile body 1. In the case 12, the rechargeable battery 16 can be isolated from the upper charging plate 18 and the solar cell panel 13 by the cover plate 17, the switch circuit board 19 is disposed on the cover plate 17 and on one side of the charging plate 18 under the solar cell panel 13, and the electric light source 4 is disposed on one side of the solar cell panel 13 and exposed on the surface of the floor tile body 1.

In a preferred embodiment, the electric light source 4 is also isolated from the other components in the case 12 by a partition provided in the case 12.

In a preferred embodiment, the cover 17 may be horizontally installed in the case 12 by means of a first bracket 15 provided on a sidewall of the case 12 and isolate the rechargeable battery 16 in a lower space of the case 12.

The solar cell panel 13, the charging panel 18, the switch circuit board 19, the rechargeable battery 16, and the electric light source 4 provided in the case 12 are combined together in an organic manner by providing the cover 17 and the partition in the case 12.

In a preferred embodiment, a second bracket 20 for mounting and protecting the electric light source 4 may also be provided within the case 12.

Further, the second holder 20 has two elastic arms that grip the electric light source 4 from the side; wherein, two elastic arms are horizontal arc, one end of each elastic arm is fixed on the inner wall of the box body 12, and a gap is arranged between the free ends of the two elastic arms.

Further, a seat hole may be further formed on the bottom surface of the case 12 below between the two elastic arms of the second bracket 20 for inserting the lower end of the electric light source 4 into the seat hole to be engaged therewith, and the seat hole and the two elastic arms of the second bracket 20 together form a fixing for the electric light source 4.

Further, perforations 14 for routing may also be provided on the sides of the cassette body 12.

In a preferred embodiment, the case 12 also serves as a heat sink for the components housed within it. Further, the second chamber 9 of the floor tile body 1 is communicated with the ground below, so that the heat on the box body 12 can be led out through the ground.

Please refer to fig. 2. In a preferred embodiment, the tile body 1 can be made of a conventional tile material, and the cavity 10, the first platform 6, and the second platform 7 are integrally formed on the tile body 1. Like this, ceramic tile body 1 can process in the lump when producing the ceramic tile for the municipal administration, make the utility model discloses when using, no matter can coordinate in appearance size or color and luster between ceramic tile body 1 and the ceramic tile for the municipal administration unified, can directly lay, and the replacement is convenient, has reduced simultaneously again the utility model discloses the cost of manufacture.

Please refer to fig. 1. In a preferred embodiment, the tread panel 5 may comprise a frosted tempered glass tread panel 5.

Furthermore, characters such as 'cables are arranged below' and 'excavation forbidding' and fluorescent marks such as arrows indicating the direction of the cables can be printed on the upper surface of the treading panel 5 so as to indicate that cables or pipelines are arranged below and mark the direction, and the obvious warning and reminding effect can be achieved.

In a preferred embodiment, the lower surface of the tread panel 5 suspended on the first platform 6 may be brought into contact with the piezoelectric unit 24 by means of a resilient element passing through the first chamber 8 into the gap between the first platform 6 and the second platform 7.

Further, the elastic member may include a foamed rubber press bead having elasticity.

When someone tramples on the utility model discloses a during trample panel 5 on the ceramic tile body 1, trample pressure and will transmit the foaming rubber strip to below through trampling panel 5, make the foaming rubber strip oppress the piezoceramics piece. The piezoelectric ceramic piece can send out a pulse voltage signal after being pressed, and a field effect transistor Q1 of the trigger switch control circuit 22 is conducted, so that the electric light source loop 23 is conducted, the LED lamp bead D1 can flash for a short time, and people can be obviously warned at night.

In a preferred embodiment, a transparent film may be further applied on the top surface of the solar cell panel 13 to protect the solar cell panel 13 exposed out of the surface of the floor tile body 1.

Through simulation verification, the load is 2 series-connected LEDs in the state that light sunlight exists in the early morning and a layer of glass window is arranged. In the state of no film on the solar cell panel 13, the output voltage is 4.6V and the output current is about 13 mA. When the solar cell panel 13 has a film, the output voltage is 4.5V to 4.6V, and the output current is about 12 mA. The output current difference is not large, which indicates that the power supply capability of the solar cell panel 13 is not obviously affected when the film is used for protecting the solar cell panel 13.

Accordingly, a transparent box cover can be arranged on the upper end of the box body 12 as a transparent protection panel to cover and seal the solar cell panel 13 and the LED lamp beads D1 in the box body 12 at the same time to form protection.

Please refer to fig. 5, which illustrates a circuit principle of the electric power warning floor tile according to a preferred embodiment of the present invention. As shown in fig. 5, taking solar cells as an example for power supply, the circuit of the electric power warning floor tile of the present invention includes a switch control circuit 22, a piezoelectric unit 24 (piezoelectric ceramic plate) coupled to the switch control circuit 22, and an electric light source loop 23.

The switch control circuit 22 is provided with a rectifier bridge 21, and two ends of the piezoelectric ceramic piece are connected with two alternating current input ends of the rectifier bridge 21; the positive electrodes of the two direct current output ends of the rectifier bridge 21 are connected with the grid G of the NMOS transistor, the negative electrodes of the two direct current output ends of the rectifier bridge 21 are connected with the drain D of the NMOS transistor and the negative electrode of the charging plate 18 in the electric light source loop 23, and the negative electrode of the charging plate 18 is connected with the positive electrode of the lithium battery; the source S of the NMOS transistor is connected to the first terminal of the led D1 in the electric light source circuit 23, the second terminal of the led D1 is connected to the anode of the charging board 18, and the anode of the charging board 18 is connected to the cathode of the lithium battery.

Further, the switch control circuit 22 is also provided with a zener diode ZD 1. A first end of the zener diode ZD1 is commonly connected to the positive electrode of the two dc output terminals of the rectifier bridge 21 and the gate G of the NMOS transistor, and a second end of the zener diode ZD1 is commonly connected to the drain D of the NMOS transistor and the negative electrode of the charging plate 18 together with the negative electrode of the two dc output terminals of the rectifier bridge 21.

Further, the switch control circuit 22 is also provided with a charge release resistor R1. A first end of the charge release resistor R1 is commonly connected with the positive electrode of the two dc output ends of the rectifier bridge 21, the first end of the zener diode ZD1 and the gate G of the NMOS transistor, and a second end of the charge release resistor R1 is commonly connected with the negative electrode of the two dc output ends of the rectifier bridge 21 and the second end of the zener diode ZD1 to the drain D of the NMOS transistor and the negative electrode of the charging plate 18.

Further, the charging board 18 is connected to the solar cell panel 13 to charge the lithium battery.

The working principle of the circuit is as follows:

after the piezoelectric ceramic piece is pressed and released, a pulse voltage can be generated.

The pulse voltage is rectified by the rectifier bridge 21 to convert the negative half cycle voltage into the positive half cycle voltage. Due to the existence of the zener diode ZD1, the voltage is clamped near the target value, and the field effect transistor Q1 is prevented from entering deep saturation to greatly prolong the turn-off time. The turn-off time of the field effect transistor Q1 can be adjusted by selecting different regulated voltage values (if necessary in conjunction with the charge release resistor R1).

The trigger voltage after voltage clamping makes the fet Q1 conduct briefly (e.g., about 0.24V tube voltage drop), thereby illuminating the led D1.

When someone steps on the glass stepping panel 5 on the floor tile body 1, the light emitting diode D1 emits a flashing signal to warn and remind people.

In design, the charging board 18 starts to charge the lithium battery when the input voltage of the solar cell panel 13 is higher than 4.4V, and can automatically adjust the charging current according to the current output capability of the solar cell panel 13.

When the solar cell panel 13 as an input power source is powered down (at night or on a cloudy day), the charging panel 18 will automatically enter the sleep mode. The current consumption is less than 3 microamperes, which can be ignored. The charging pad 18 will automatically recharge upon restoration of the input power.

The charging plate 18 and the solar cell panel 13 may be commercially available charging plates and solar cell panels, and the description of the use can be understood with reference to the prior art.

The piezoelectric ceramic plate is used as an element of the trigger switch control circuit 22, and has the advantages that the pressing stroke can be small, and the circuit consumes little power when the trigger switch control circuit is not triggered.

The specification of the solar cell panel 13 is 5V and 60 mA. The average effective charging time per day was 7 hours, based on the experimentally measured 12mA current as an estimation basis, and the charged amount was 84 mAH.

The specification of the LED lamp bead D1 is 1W, 3.7V (about 270 mA). If the lamp is lighted for 2 seconds every time and is trampled by 500 persons every day, the power consumption is about:

270mA×2s×500/3600s＝75mAH。

the calculation result shows that the charge amount is larger than the power consumption amount.

Since the charging current during the noon time period is larger than the estimated set value, the charge amount is sufficient for the daily power consumption. And the lithium battery is always in a low-current charging and short-time discharging state, so that the problem of overheating of the battery is basically avoided.

The utility model discloses simple structure, preparation and use low cost, the warning effect is obvious, durable. Therefore, the method is suitable for being widely popularized and used in the power system.

It should be understood by those skilled in the art that the above embodiments are only used for illustrating the present invention, and not used as a limitation of the present invention, and that the changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (7)

1. Electric power warning ceramic tile, its characterized in that includes:

a floor tile body having a first cavity and a second cavity on a surface thereof, the floor tile body being configured to be laid on a ground surface together with a municipal floor tile and to cover over a power cable buried under the ground surface;

the stepping panel is arranged on the surface of the floor tile body above the first cavity, and a fluorescent warning identification layer is arranged on the surface of the stepping panel;

the piezoelectric ceramic piece is arranged in the first cavity and is in contact with the lower surface of the treading panel through an elastic foaming rubber strip;

the electric light source loop is arranged in the second chamber and is provided with a rechargeable battery and an LED lamp;

the switch circuit board is arranged in the second cavity, and is provided with a switch control circuit which is respectively coupled with the electric light source loop and the piezoelectric ceramic piece;

the piezoelectric ceramic piece senses a signal which is transmitted by the foamed rubber strip and is generated by the treading pressure on the treading panel, and the switch control circuit is triggered to conduct the electric light source loop, so that the LED lamp is electrified to generate exposed warning light.

2. The electric power warning floor tile according to claim 1, wherein the switch control circuit is provided with a field effect transistor, the gate of the field effect transistor is coupled to the piezoelectric ceramic plate, and the field effect transistor is connected to the electric light source loop through a source electrode and a drain electrode.

3. The power warning tile of claim 1, wherein the first recessed platform is disposed on the top surface of the tile body for supporting the tread panel.

4. The power warning floor tile of claim 3, wherein a height difference between the top surface of the first platform and the top surface of the floor tile body corresponds to a thickness of the tread board.

5. The power warning tile of claim 1, wherein the first cavity is in communication with the second cavity via a groove.

6. The electric warning floor tile according to claim 3, wherein the foamed rubber strip passes through the first chamber and contacts with the lower surface of the tread panel suspended from the first platform.

7. The power alerting floor tile of claim 1, wherein the tread panel comprises a frosted tempered glass tread panel.

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