CN211737142U - Tunnel excavation trolley for realizing safe power utilization - Google Patents

Abstract

The utility model relates to a tunnel excavation platform truck specifically is a tunnel excavation platform truck of realization safe power consumption. The utility model provides an open current power supply mode of digging the operation section in tunnel construction drag the problem of construction progress, increase construction work load, influence construction safety slowly. A tunnel excavation trolley for realizing safe electricity utilization comprises a trolley body; a strip-shaped chute with an upward slot is fixed at the lower part of the support steel frame of the trolley body; four rectangular sliding blocks are assembled in the strip-shaped sliding groove in parallel; the upper surfaces of the four rectangular sliding blocks are respectively fixed with a storage battery; the lower part of the supporting steel frame of the trolley body is also fixed with a power supply switching device; the power supply switching device includes first to fourth switches, and first to fourth relays. The utility model is suitable for a tunnel construction.

Description

Tunnel excavation trolley for realizing safe power utilization

Technical Field

The utility model relates to a tunnel excavation platform truck specifically is a tunnel excavation platform truck of realization safe power consumption.

Background

In tunnel construction, the power utilization voltage of an excavation operation section must not exceed 36V according to the requirements of 'construction site temporary power utilization safety technical specification' JGJ 46-2005. Under the condition of the prior art, in order to meet the requirements, the power utilization equipment of the excavation operation section generally adopts a distribution box and a transformation device for power supply. The problems of the power supply mode are as follows: as excavation progresses, it is necessary to continuously move the distribution box and the transformer equipment forward, thereby causing the following problems: firstly, because block terminal and potential device are comparatively heavy, lead to the removal process to waste time and energy, not only drag the construction progress from this, increase construction work load moreover. Secondly, because remove the in-process and need dismantle, transport, installation repeatedly to block terminal and potential transformation equipment, lead to block terminal and potential transformation equipment to take place to damage easily, lead to block terminal and potential transformation equipment to take place the electric leakage risk easily from this to influence construction safety. Therefore, the tunnel excavation trolley for realizing safe power utilization needs to be invented to solve the problems that the existing power supply mode of an excavation operation section in tunnel construction slows down the construction progress, increases the construction workload and influences the construction safety.

Disclosure of Invention

The utility model discloses a solve the current power supply mode of excavation operation section in the tunnel construction and drag the problem of construction progress, increase construction work volume, influence construction safety, provide a tunnel excavation platform truck who realizes safe power consumption.

The utility model discloses an adopt following technical scheme to realize:

a tunnel excavation trolley for realizing safe electricity utilization comprises a trolley body; a strip-shaped chute with an upward slot is fixed at the lower part of the support steel frame of the trolley body; four rectangular sliding blocks are assembled in the strip-shaped sliding groove in parallel; the upper surfaces of the four rectangular sliding blocks are respectively fixed with a storage battery; the lower part of the supporting steel frame of the trolley body is also fixed with a power supply switching device; the power supply switching device comprises first to fourth switches and first to fourth relays; one end of a coil of the first relay is connected with the anode of the first storage battery sequentially through the normally closed contact of the second relay, the normally closed contact of the third relay and the normally closed contact of the fourth relay, and the other end of the coil of the first relay is connected with the cathode of the first storage battery through the first switch; one end of a coil of the second relay is connected with the anode of the second storage battery through the normally closed contact of the first relay, the normally closed contact of the third relay and the normally closed contact of the fourth relay in sequence, and the other end of the coil of the second relay is connected with the cathode of the second storage battery through the second switch; one end of a coil of the third relay is connected with the positive electrode of the third storage battery through the normally closed contact of the first relay, the normally closed contact of the second relay and the normally closed contact of the fourth relay in sequence, and the other end of the coil of the third relay is connected with the negative electrode of the third storage battery through the third switch; one end of a coil of the fourth relay is connected with the positive electrode of the fourth storage battery sequentially through the normally closed contact of the first relay, the normally closed contact of the second relay and the normally closed contact of the third relay, and the other end of the coil of the fourth relay is connected with the negative electrode of the fourth storage battery through the fourth switch; one end of a normally open contact of the first relay is connected with the negative electrode of the first storage battery through the first switch; one end of a normally open contact of the second relay is connected with the negative electrode of the second storage battery through the second switch; one end of a normally open contact of the third relay is connected with the negative electrode of the third storage battery through a third switch; one end of a normally open contact of the fourth relay is connected with the negative electrode of the fourth storage battery through the fourth switch; the other end of the normally open contact of the first relay, the other end of the normally open contact of the second relay, the other end of the normally open contact of the third relay and the other end of the normally open contact of the fourth relay are jointly used as negative power supply ends; the positive electrodes of the four storage batteries are used as positive power supply terminals together.

When the device works, the positive power supply end and the negative power supply end are both connected with the electric equipment of the excavation operation section. Along with the going on of excavation, the platform truck body constantly moves forward, and bar spout, four rectangle sliders, four batteries all move forward along with the platform truck body together. In the process, the four storage batteries supply power to the power utilization equipment in turn by operating the power supply switching device, and the storage battery with insufficient electric quantity is replaced in time. The specific operation steps are as follows: first, under initial condition, first to fourth switch are the disconnection state, and the coil of first to fourth relay loses electric. And secondly, closing the first switch. At the moment, the coil of the first relay is electrified, the normally open contact of the first relay is closed, the normally closed contact of the first relay is disconnected, and the first storage battery starts to supply power to the electric equipment. And thirdly, when the electric quantity of the first storage battery is insufficient, the first switch is opened, and the second switch is closed. At the moment, the coil of the first relay loses power, the normally open contact of the first relay is disconnected, the normally closed contact of the first relay is closed, the coil of the second relay is electrified, the normally open contact of the second relay is closed, the normally closed contact of the second relay is disconnected, and the second storage battery starts to supply power to the electric equipment. Then, the first storage battery and the first rectangular sliding block are taken down from the strip-shaped sliding groove and replaced. And fourthly, when the electric quantity of the second storage battery is insufficient, the second switch is opened, and the third switch is closed. At the moment, the coil of the second relay loses power, the normally open contact of the second relay is disconnected, the normally closed contact of the second relay is closed, the coil of the third relay is electrified, the normally open contact of the third relay is closed, the normally closed contact of the third relay is disconnected, and the third storage battery starts to supply power to the power utilization equipment. And then, the second storage battery and the second rectangular sliding block are taken down from the strip-shaped sliding groove and replaced. And fifthly, when the electric quantity of the third storage battery is insufficient, opening the third switch and closing the fourth switch. At the moment, the coil of the third relay loses power, the normally open contact of the third relay is disconnected, the normally closed contact of the third relay is closed, the coil of the fourth relay is electrified, the normally open contact of the fourth relay is closed, the normally closed contact of the fourth relay is disconnected, and the fourth storage battery starts to supply power to the power utilization equipment. And then, taking down the third storage battery and the third rectangular sliding block from the strip-shaped sliding groove and replacing the third storage battery and the third rectangular sliding block. And sixthly, when the electric quantity of the fourth storage battery is insufficient, the fourth switch is opened, and the first switch is closed. At the moment, the coil of the fourth relay loses power, the normally open contact of the fourth relay is disconnected, the normally closed contact of the fourth relay is closed, the coil of the first relay is electrified, the normally open contact of the first relay is closed, the normally closed contact of the first relay is disconnected, and the first storage battery starts to supply power to the power utilization equipment. And then, the fourth storage battery and the fourth rectangular sliding block are taken down from the strip-shaped sliding groove and replaced.

Based on above-mentioned process, compare with the current power supply mode of excavation operation section in tunnel construction, a tunnel excavation platform truck of realization safe power consumption no longer adopt block terminal and potential device to supply power to the consumer, but adopt four batteries of integrated on the platform truck body to supply power to the consumer in turn, saved the process of moving block terminal and potential device forward from this to effectively guaranteed the construction progress on the one hand, effectively reduced construction work volume, on the other hand has effectively guaranteed construction safety.

Furthermore, the LED lamp also comprises four LED illuminating lamps; the four LED illuminating lamps are respectively fixed on the left edge of the top layer platform, the right edge of the top layer platform, the left edge of the middle layer platform and the right edge of the middle layer platform of the trolley body; the anodes of the four LED illuminating lamps are connected with the positive power supply end; the negative poles of the four LED illuminating lamps are connected with the negative power supply end. During operation, the LED illuminating lamp is used for illuminating the excavation operation section.

Furthermore, each storage battery is provided with a handle; the output voltage of each battery is 12V. When the storage battery box works, the handle is beneficial to taking the storage battery.

In addition, the power supply switching device further comprises a packaging shell; the first switch, the second switch, the third switch and the fourth switch are all fixed on the side wall of the packaging shell in a penetrating manner; the first to fourth relays are all fixed in the inner cavity of the packaging shell.

The utility model discloses rational in infrastructure, design benefit, the current power supply mode who has effectively solved excavation operation section in the tunnel construction drags the problem of construction progress, increase construction work load, influence construction safety at a slow pace, is applicable to tunnel construction.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the middle bar-shaped sliding groove, the rectangular sliding block and the storage battery of the present invention.

Fig. 3 is a schematic structural diagram of the middle bar-shaped chute of the present invention.

Fig. 4 is a schematic structural diagram of four rectangular sliders and four storage batteries in the present invention.

Fig. 5 is a schematic circuit diagram of the power supply switching device of the present invention.

In the figure: the method comprises the following steps of 1-trolley body, 2-strip-shaped sliding groove, 3-rectangular sliding block, 4-storage battery, 5-power supply switching device, 6-LED illuminating lamp and 7-handle.

Detailed Description

A tunnel excavation trolley for realizing safe electricity utilization comprises a trolley body 1; a strip-shaped chute 2 with an upward slot is fixed at the lower part of a supporting steel frame of the trolley body 1; four rectangular sliding blocks 3 are assembled in the strip-shaped sliding groove 2 side by side; the upper surfaces of the four rectangular sliding blocks 3 are respectively fixed with a storage battery 4; a power supply switching device 5 is also fixed at the lower part of the support steel frame of the trolley body 1; the power supply switching device 5 comprises first to fourth switches S1 to S4 and first to fourth relays K1 to K4; one end of a coil of the first relay K1 is connected with the anode of the first storage battery 4 sequentially through the normally closed contact of the second relay K2, the normally closed contact of the third relay K3 and the normally closed contact of the fourth relay K4, and the other end of the coil is connected with the cathode of the first storage battery 4 through the first switch S1; one end of a coil of the second relay K2 is connected with the anode of the second storage battery 4 through a normally closed contact of the first relay K1, a normally closed contact of the third relay K3 and a normally closed contact of the fourth relay K4 in sequence, and the other end of the coil is connected with the cathode of the second storage battery 4 through a second switch S2; one end of a coil of the third relay K3 is connected with the anode of the third storage battery 4 through a normally closed contact of the first relay K1, a normally closed contact of the second relay K2 and a normally closed contact of the fourth relay K4 in sequence, and the other end of the coil is connected with the cathode of the third storage battery 4 through a third switch S3; one end of a coil of the fourth relay K4 is connected with the anode of the fourth storage battery 4 through the normally closed contact of the first relay K1, the normally closed contact of the second relay K2 and the normally closed contact of the third relay K3 in sequence, and the other end of the coil is connected with the cathode of the fourth storage battery 4 through the fourth switch S4; one end of a normally open contact of the first relay K1 is connected with the negative electrode of the first storage battery 4 through a first switch S1; one end of a normally open contact of the second relay K2 is connected with the negative electrode of the second storage battery 4 through a second switch S1; one end of a normally open contact of the third relay K3 is connected with the negative electrode of the third storage battery 4 through a third switch S3; one end of a normally open contact of the fourth relay K4 is connected with the negative electrode of the fourth battery 4 through a fourth switch S4; the other end of the normally open contact of the first relay K1, the other end of the normally open contact of the second relay K2, the other end of the normally open contact of the third relay K3 and the other end of the normally open contact of the fourth relay K4 are jointly used as negative power supply ends; the positive electrodes of the four storage batteries 4 are used as a positive power supply terminal together.

The LED lamp also comprises four LED illuminating lamps 6; the four LED illuminating lamps 6 are respectively fixed on the left edge of the top layer platform, the right edge of the top layer platform, the left edge of the middle layer platform and the right edge of the middle layer platform of the trolley body 1; the anodes of the four LED illuminating lamps 6 are connected with the positive power supply end; the negative poles of the four LED illuminating lamps 6 are connected with the negative power supply end.

Each storage battery 4 is provided with a handle 7; the output voltage of each battery 4 is 12V.

The power supply switching device 5 further comprises an encapsulation shell; the first to fourth switches S1 to S4 are all fixed on the side wall of the packaging shell in a penetrating way; the first to fourth relays K1-K4 are all fixed in the inner cavity of the packaging shell.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims (4)

1. A tunnel excavation trolley for realizing safe electricity utilization comprises a trolley body (1); the method is characterized in that: a strip-shaped chute (2) with an upward slot is fixed at the lower part of a supporting steel frame of the trolley body (1); four rectangular sliding blocks (3) are assembled in the strip-shaped sliding groove (2) side by side; the upper surfaces of the four rectangular sliding blocks (3) are respectively fixed with a storage battery (4); a power supply switching device (5) is further fixed on the lower portion of the supporting steel frame of the trolley body (1); the power supply switching device (5) includes first to fourth switches (S1-S4), first to fourth relays (K1-K4); one end of a coil of the first relay (K1) is connected with the anode of the first storage battery (4) sequentially through the normally closed contact of the second relay (K2), the normally closed contact of the third relay (K3) and the normally closed contact of the fourth relay (K4), and the other end of the coil is connected with the cathode of the first storage battery (4) through the first switch (S1); one end of a coil of the second relay (K2) is connected with the anode of the second storage battery (4) sequentially through the normally closed contact of the first relay (K1), the normally closed contact of the third relay (K3) and the normally closed contact of the fourth relay (K4), and the other end of the coil is connected with the cathode of the second storage battery (4) through the second switch (S2); one end of a coil of the third relay (K3) is connected with the positive electrode of the third storage battery (4) sequentially through the normally closed contact of the first relay (K1), the normally closed contact of the second relay (K2) and the normally closed contact of the fourth relay (K4), and the other end of the coil is connected with the negative electrode of the third storage battery (4) through the third switch (S3); one end of a coil of the fourth relay (K4) is connected with the positive electrode of the fourth storage battery (4) sequentially through the normally closed contact of the first relay (K1), the normally closed contact of the second relay (K2) and the normally closed contact of the third relay (K3), and the other end of the coil is connected with the negative electrode of the fourth storage battery (4) through the fourth switch (S4); one end of a normally open contact of the first relay (K1) is connected with the negative electrode of the first storage battery (4) through a first switch (S1); one end of a normally open contact of the second relay (K2) is connected with the negative electrode of the second storage battery (4) through a second switch (S2); one end of a normally open contact of the third relay (K3) is connected with the negative electrode of the third storage battery (4) through a third switch (S3); one end of a normally open contact of a fourth relay (K4) is connected with the negative electrode of the fourth storage battery (4) through a fourth switch (S4); the other end of the normally open contact of the first relay (K1), the other end of the normally open contact of the second relay (K2), the other end of the normally open contact of the third relay (K3) and the other end of the normally open contact of the fourth relay (K4) are jointly used as a negative power supply end; the positive electrodes of the four storage batteries (4) are used as positive power supply terminals together.

2. The tunnel excavation trolley for realizing safe power utilization according to claim 1, wherein: the LED lamp also comprises four LED illuminating lamps (6); the four LED illuminating lamps (6) are respectively fixed on the left edge of the top layer platform, the right edge of the top layer platform, the left edge of the middle layer platform and the right edge of the middle layer platform of the trolley body (1); the anodes of the four LED illuminating lamps (6) are connected with the positive power supply end; the negative poles of the four LED illuminating lamps (6) are connected with the negative power supply end.

3. The tunnel excavation trolley for realizing safe power utilization according to claim 1, wherein: each storage battery (4) is provided with a handle (7); the output voltage of each storage battery (4) is 12V.

4. The tunnel excavation trolley for realizing safe power utilization according to claim 1, wherein: the power supply switching device (5) further comprises an encapsulation shell; the first to fourth switches (S1-S4) are all fixed on the side wall of the packaging shell in a penetrating way; the first to fourth relays (K1-K4) are all fixed in the inner cavity of the packaging shell.

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