CN217521642U - A cable well cover warning device - Google Patents

Abstract

The utility model discloses a cable well lid early warning device, which comprises a well seat and an early warning unit; well seat: the upper end surface of the well seat is provided with an inner edge groove, a well cover is rotatably connected in a gap arranged on the inner arc surface of the inner edge groove through a rotating shaft, the lower end surface of the well cover is provided with a GPRS data transmitter, and the edge of the lower end surface of the well seat is provided with an alarm; the early warning unit: the early warning unit is fixedly connected with the upper end of the inner arc surface of the well seat; wherein: still include the PLC controller, the PLC controller sets up in the lower terminal surface of well lid, and the PLC controller is located GPRS data transmission ware's rear, and external power source is connected to the input electricity of PLC controller, and GPRS data transmission ware is connected with the two-way electricity of PLC controller, and the output of PLC controller is connected to the input electricity of siren, this cable shaft well lid early warning device, can be timely send the early warning for the surveillance center when the illegal well lid condition of opening, the reliability of well lid when daily use has been improved greatly.

Description

A cable well cover warning device

technical field

The utility model relates to the technical field of power grid facilities, in particular to an early warning device for a cable well cover.

Background technique

With the development of society and the advancement of science and technology, power grid facilities play an important role in society, and underground cables play an increasingly important role in the operation of power supply. Some cable wells that are easy to check the cables are used for maintenance. At present, when the cable well is used daily, it is necessary to set up a well seat at the wellhead, and then place a well cover in the inner groove of the well seat. However, due to the well cover of the cable well Most of them are cast iron, which is only pressed on the well seat by its gravity. This method has poor anti-theft performance, and the phenomenon of theft occurs from time to time, resulting in low reliability of the well cover and poor safety during operation of the power grid. Therefore, We propose a cable manhole cover warning device.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects and provide a cable manhole cover warning device, which can timely issue an early warning to the monitoring center when the manhole cover is illegally opened, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a cable well cover warning device, comprising a well seat and an early warning unit;

Well seat: the upper end face is provided with an inner groove, and the gap set on the arc surface of the inner groove is connected with the manhole cover through the rotation of the shaft. device;

Early warning unit: set in the middle of the lower end face of the manhole cover, and the early warning unit is fixedly connected to the upper end of the inner arc surface of the well seat;

Wherein: it also includes a PLC controller, the PLC controller is arranged on the lower end face of the well cover, the PLC controller is located behind the GPRS data transmitter, the input end of the PLC controller is electrically connected to an external power supply, the GPRS data transmitter and the PLC controller Two-way electrical connection, the input end of the alarm is electrically connected to the output end of the PLC controller, which can authorize the operation of opening and closing the well through the system according to the request of the normal construction personnel according to the actual situation, and can timely inform the monitoring center when the manhole cover is illegally opened. The early warning greatly improves the reliability of the manhole cover in daily use, replaces the regular inspection of the traditional manual method, and improves the safety of the power grid during operation.

Further, the early warning unit includes an elliptical plate, a strip plate, a fixed block, a limit rod and a limit ring, the limit ring is arranged on the upper end of the inner arc surface of the well seat, and the lower end surface of the manhole cover is provided with horizontally symmetrical distribution. The fixed block, the sliding holes set in the middle of the two fixed blocks are all slidably connected to the limit rods, the inner ends of the limit rods are all connected with strips through the rotating shaft, and the two strips are rotated through the rotating shaft and the corresponding end of the elliptical plate. The connection greatly improves the reliability of the manhole cover in daily use.

Further, the early warning unit further includes a pressure sensor, the pressure sensors are respectively arranged on the outer ends of the limit rods, and the output end of the pressure sensor is electrically connected to the input end of the PLC controller, which can timely open the manhole cover illegally. Alert the monitoring center.

Further, the early warning unit also includes a motor, the motor is arranged in the middle of the lower end face of the manhole cover through the mounting seat, the lower end of the output shaft of the motor is fixedly connected with the center of the upper end face of the elliptical plate, and the input end of the motor is electrically connected to the PLC controller. The output terminal plays a driving role.

Further, a temperature sensor is provided on the lower end surface of the well cover, and the output end of the temperature sensor is electrically connected to the input end of the PLC controller, so as to prevent the cable connector from being overheated and burning out the cable connector.

Further, the lower end face of the manhole cover is provided with a smoke sensor, the smoke sensor is located behind the temperature sensor, and the output end of the smoke sensor is electrically connected to the input end of the PLC controller, so as to detect the occurrence of cable fire in time.

Further, the lower surface of the well cover is provided with a protective box, the lower surface of the protective box is connected with a cover plate by screws, and the GPRS data transmitter and the PLC controller are located in the inner cavity of the protective box, which plays a role in the safety of its internal electrical components. protective effect.

Compared with the prior art, the beneficial effects of the utility model are: the cable manhole cover warning device has the following advantages:

1. The staff sends a signal to the receiving end of the GPRS data transmitter through the external terminal, and the GPRS data transmitter synchronizes the received signal to the PLC controller. The PLC controller controls the operation of the motor, and the motor output shaft rotates clockwise to drive the elliptical plate to synchronize. Rotation, the elliptical plate rotates through the strip plate and the corresponding limit rod moves synchronously to the outside along the lateral axial direction of the fixed block until the outer end of the limit rod and the pressure sensor are under the limit ring at the same time, the PLC The controller controls the motor to stop running, so that it can authorize the operation of opening and closing the well through the system according to the request of the normal construction personnel according to the actual situation.

2. When the manhole cover is pulled or pryed without reporting to the relevant department, the pressure sensor will contact the limit ring. At this time, the pressure sensor will monitor in real time, and the detection signal will be transmitted to the PLC controller synchronously. The controller determines that when the pressure is greater than the set value, the PLC controller immediately transmits the signal to the external terminal through the output end of the GPRS data transmitter, and synchronously controls the operation of the alarm, and the alarm generates sound and light, so as to control the alarm. Reminders and warns against illegal behaviors, which can timely issue an early warning to the monitoring center when the manhole cover is illegally opened, which greatly improves the reliability of the manhole cover in daily use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic structural diagram of an early warning unit of the present invention.

In the picture: 1 well seat, 2 well cover, 3 GPRS data transmitter, 4 PLC controller, 5 early warning unit, 51 motor, 52 oval plate, 53 strip plate, 54 fixed block, 55 limit rod, 56 limit ring, 57 pressure sensors, 6 temperature sensors, 7 smoke sensors, 8 alarms, 9 protective boxes, 10 cover plates, 11 inner grooves.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-2, this embodiment provides a technical solution: an early warning device for a cable well cover, comprising a well seat 1 and an early warning unit 5;

Well base 1: The well base 1 provides the installation and support place for its subsidiary mechanism units. The upper end surface of the well base 1 is provided with an inner edge groove 11. The inner edge groove 11 plays a role of installation and fixation. A manhole cover 2 is connected through the rotation of the shaft, and the manhole cover 2 plays a role of safety protection for the cable well. The lower end surface of the manhole cover 2 is provided with a GPRS data transmitter 3. The setting of the GPRS data transmitter 3 can interact with the remote end in real time. The edge of the lower end face of the well base 1 is provided with an alarm 8, the operation of the alarm 8 is regulated, and the alarm 8 produces sound and light, so as to remind and warn the illegal behavior;

Early warning unit 5: arranged in the middle of the lower end surface of the manhole cover 2, the early warning unit 5 is fixedly connected to the upper end of the inner arc surface of the well base 1, and the early warning unit 5 includes an elliptical plate 52, a strip plate 53, a fixed block 54, a limit rod 55 and a limiter. Position ring 56, the limit ring 56 is arranged on the upper end of the inner arc surface of the well base 1, the lower end surface of the well cover 2 is provided with fixed blocks 54 which are symmetrically distributed in the lateral direction, and the sliding holes provided in the middle of the two fixed blocks 54 are both slidably connected to the limited position. The rod 55 and the inner end of the limit rod 55 are connected with the strip 53 through the rotation shaft, and the two strips 53 are connected with the corresponding end of the elliptical plate 52 through the rotation shaft. The early warning unit 5 also includes a pressure sensor 57, a pressure sensor 57 are respectively arranged on the outer end of the limit rod 55, the output end of the pressure sensor 57 is electrically connected to the input end of the PLC controller 4, the early warning unit 5 also includes a motor 51, and the motor 51 is arranged in the middle of the lower end face of the manhole cover 2 through the mounting seat , the lower end of the output shaft of the motor 51 is fixedly connected to the center of the upper end face of the elliptical plate 52, the input end of the motor 51 is electrically connected to the output end of the PLC controller 4, and the staff sends a signal to the receiving end of the GPRS data transmitter 3 through the external terminal, Then the motor 51 is regulated to operate, the output shaft of the motor 51 rotates clockwise to drive the elliptical plate 52 to rotate synchronously, and the elliptical plate 52 rotates through the strip 53 to push the corresponding limit rod 55 to move synchronously to the outside along the lateral and axial direction of the fixed block 54, Until the outer end of the limit rod 55 and the pressure sensor 57 are placed under the limit ring 56 at the same time, the PLC controller 4 controls the motor 51 to stop running, so that the system can authorize the opening of the well according to the request of the normal construction personnel according to the actual situation. When the manhole cover 2 is pulled or pryed without reporting to the relevant department, the pressure sensor 57 will contact the limit ring 56. At this time, since the pressure sensor 57 is monitoring in real time, when the pressure is greater than the set value When the value is detected, the signal is immediately transmitted to the external terminal through the output end of the GPRS data transmitter 3, and the operation of the alarm device 8 is synchronously controlled. When the manhole cover 2 is illegally opened, an early warning is issued to the monitoring center, which greatly improves the reliability of the manhole cover 2 in daily use;

Wherein: also includes a PLC controller 4, the PLC controller 4 is arranged on the lower end face of the well cover 2, the PLC controller 4 is located behind the GPRS data transmitter 3, the input end of the PLC controller 4 is electrically connected to an external power supply, and the GPRS data transmitter 3. It is electrically connected to the PLC controller 4 in both directions, and the input end of the alarm 8 is electrically connected to the output end of the PLC controller 4 to regulate the operation of various electrical components.

The lower end face of the manhole cover 2 is provided with a temperature sensor 6. The output end of the temperature sensor 6 is electrically connected to the input end of the PLC controller 4. The temperature sensor 6 monitors the temperature rise at the cable joint in the cable well and the ambient temperature in the cable well in real time to prevent the cable from being connected. The temperature of the head is too high and the cable connector is burned.

The lower end face of the manhole cover 2 is provided with a smoke sensor 7. The smoke sensor 7 is located behind the temperature sensor 6. The output end of the smoke sensor 7 is electrically connected to the input end of the PLC controller 4. The smoke sensor 7 monitors the smoke condition in the cable well in real time. , to detect the occurrence of cable fire in time.

The lower end face of the well cover 2 is provided with a protective box 9, the lower surface of the protective box 9 is connected with a cover plate 10 by screws, the GPRS data transmitter 3 and the PLC controller 4 are located in the inner cavity of the protective box 9, and the protective box 9 and the cover plate 10 The matching setting plays a role of safety protection for its internal electrical components.

The working principle of the cable manhole cover warning device provided by the utility model is as follows: the staff sends a signal to the receiving end of the GPRS data transmitter 3 through the external terminal, and the GPRS data transmitter 3 synchronizes the received signal to the PLC controller 4 , the PLC controller 4 regulates the operation of the motor 51, the output shaft of the motor 51 rotates clockwise to drive the elliptical plate 52 to rotate synchronously, and the elliptical plate 52 rotates through the strip 53 to push the corresponding limit rod 55 to synchronize along the lateral and axial direction of the fixed block 54. Move to the outside until the outer end of the limit rod 55 and the pressure sensor 57 are under the limit ring 56 at the same time, the PLC controller 4 controls the motor 51 to stop running, and the manhole cover 2 is in the closed state. When pulling or prying the manhole cover 2 for reporting to the relevant department, the personnel pry up the manhole cover 2, and the manhole cover 2 is applied to the elliptical plate 52, the strip plate 53, the fixing block 54, the limit rod 55 and the pressure sensor 57. The upward force, the pressure The sensor 57 will be in contact with the bottom surface of the limit ring 56. At this time, since the pressure sensor 57 performs pressure monitoring in real time, and synchronously transmits the detection signal to the PLC controller 4, the PLC controller 4 determines that when the pressure is greater than the set value , the PLC controller 4 immediately transmits the signal to the external terminal through the output end of the GPRS data transmitter 3, and controls the operation of the alarm device 8 synchronously. Timely warning is given to the monitoring center when the manhole cover 2 is illegally opened, which greatly improves the reliability of the manhole cover 2 in daily use, while the temperature sensor 6 and the flue gas sensor 7 operate in real time to monitor the temperature and flue gas in the cable well and send it to the monitoring center. The detected data is synchronized with the PLC controller 4, which is determined by the PLC controller 4, which replaces the regular inspection of the traditional manual method and improves the safety of the power grid during operation. The protective box 9 and the cover plate 10 are set together. It plays the role of safety protection for its internal electrical components. When the manhole cover 2 needs to be opened under normal authorization, the PLC controller 4 controls the motor 51 to reverse, and the output shaft of the motor 51 rotates clockwise to drive the elliptical plate 52 to rotate synchronously, and the elliptical plate 52 rotates through the bar. The plate 53 pushes the corresponding limit rod 55 to move inward synchronously along the lateral and axial direction of the fixed block 54 until the outer end of the limit rod 55 and the pressure sensor 57 are simultaneously below the central circular hole of the limit ring 56, At this time, the manhole cover 2 is free from the restriction and can be opened freely, so that the operation of opening the well can be authorized by the system according to the request of the normal construction personnel according to the actual situation.

It is worth noting that the core chip of the PLC controller 4 disclosed in the above embodiment is a PLC single-chip microcomputer, the specific model is S7-200, the GPRS data transmitter 3, the alarm 8, the pressure sensor 57, the motor 51, and the temperature sensor. 6 and smoke sensor 7 can be freely configured according to the actual application scenario, GPRS data transmitter 3 can be selected as a GPRS data transmitter of electric power DTU-DL6300, alarm 8 can be selected by a BC-3A alarm, pressure sensor 57 can choose the pressure sensor model PT124G-3103, motor 51 can choose the motor model 130M-09520C5-E, temperature sensor 6 can choose the temperature sensor model FT-H20, smoke sensor 7 can choose the model JTY- The smoke sensor of GW-BR710, the PLC controller 4 controls the GPRS data transmitter 3, the alarm 8, the pressure sensor 57, the motor 51, the temperature sensor 6 and the smoke sensor 7 to work using the methods commonly used in the prior art.

The above are only the embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly applied to other Relevant technical fields are similarly included in the scope of patent protection of the present invention.

Claims (7)

1. The utility model provides a cable shaft well lid early warning device which characterized in that: comprises a well seat (1) and an early warning unit (5);

well seat (1): an inner edge groove (11) is arranged on the upper end surface of the well seat, a well cover (2) is rotatably connected in a notch arranged on the inner arc surface of the inner edge groove (11) through a rotating shaft, a GPRS data transmitter (3) is arranged on the lower end surface of the well cover (2), and an alarm (8) is arranged on the edge of the lower end surface of the well seat (1);

early warning unit (5): the early warning unit (5) is fixedly connected with the upper end of the inner arc surface of the well base (1);

wherein: still include PLC controller (4), PLC controller (4) set up in the lower terminal surface of well lid (2), and PLC controller (4) are located the rear of GPRS data transmission ware (3), and external power source is connected to the input electricity of PLC controller (4), and GPRS data transmission ware (3) are connected with PLC controller (4) two-way electricity, and the output of PLC controller (4) is connected to the input electricity of siren (8).

2. The cable well lid early warning device of claim 1, wherein: early warning unit (5) include elliptical plate (52), slat (53), fixed block (54), gag lever post (55) and spacing ring (56), spacing ring (56) set up in the interior cambered surface upper end of well seat (1), and the lower terminal surface of well lid (2) is equipped with horizontal symmetric distribution's fixed block (54), and equal sliding connection has gag lever post (55) in the spout that two fixed block (54) middle parts set up, and the inboard end of gag lever post (55) all rotates through the pivot and is connected with slat (53), and two slats (53) all rotate through the corresponding end of pivot and elliptical plate (52) and are connected.

3. The cable well lid early warning device of claim 2, wherein: the early warning unit (5) further comprises a pressure sensor (57), the pressure sensor (57) is respectively arranged at the outer end of the limiting rod (55), and the output end of the pressure sensor (57) is electrically connected with the input end of the PLC (4).

4. The cable well lid early warning device of claim 2, wherein: early warning unit (5) still include motor (51), motor (51) pass through the mount pad and set up in the lower terminal surface middle part of well lid (2), the output shaft lower extreme of motor (51) and the up end center fixed connection of elliptical plate (52), the output of PLC controller (4) is connected to the input electricity of motor (51).

5. The cable well lid early warning device of claim 1, characterized in that: the lower terminal surface of well lid (2) is equipped with temperature sensor (6), and the input of PLC controller (4) is connected to the output electricity of temperature sensor (6).

6. The cable well lid early warning device of claim 5, wherein: the lower terminal surface of well lid (2) is equipped with flue gas sensor (7), and flue gas sensor (7) are located the rear of temperature sensor (6), and the input of PLC controller (4) is connected to the output electricity of flue gas sensor (7).

7. The cable well lid early warning device of claim 1, wherein: the lower terminal surface of well lid (2) is equipped with protection box (9), and there is apron (10) lower surface of protection box (9) through screwed connection, and GPRS data transmission ware (3) all are located the inner chamber of protection box (9) with PLC controller (4).

Images