Distribution network overhead line fault early warning and accurate positioning device

Abstract

The utility model relates to a distribution network overhead line fault early warning and accurate positioning device. The device comprises a host body. The host body comprises an upper shell, a lower shell and a connecting buckle, the middle parts of the lower end surface of the upper shell and the upper end surface of the lower shell are matched and axially provided with cable slots for placing cables, the connecting buckle comprises a screw rod, a connecting rod and a buckle ring which are connected in sequence, and the buckle ring is detachably connected with the lock catch of the insulating mounting rod through an unlocking mechanism of the insulating mounting rod. According to the device, the host body is jacked up to be close to a line wire, the insulated mounting rod is rotated to drive the lock catch to rotate, so that the upper shell and the lower shell of the host body are closed, the host body is mounted and fixed, high-altitude operation is not needed, the safety risk of high-altitude falling is avoided, and in addition, the risk of electric shock can be avoided due to the fact that the device does not need to be close to the line.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to a distribution network overhead line fault early warning and precise positioning device. Background Art

[0002] Due to the influence of the natural environment and other factors, transmission and distribution lines are inevitably prone to faults such as cable damage and foreign objects, especially on 10kV overhead distribution lines. Among them, the most common fault is single-phase grounding fault. At present, for this type of fault, power maintenance personnel must first determine the location of the grounding fault. For shorter lines, personnel can be arranged to conduct a comprehensive inspection along the line. However, it is more difficult to find the grounding point for longer overhead distribution lines. Currently, there are various grounding line selection methods that can be used, such as amplitude judgment method, power direction method, first wave judgment method and frequency division judgment method. The grounding line is preliminarily judged in the substation, and then the investigation scope is gradually narrowed. When the scope is narrowed to a limited extent, personnel are arranged for a comprehensive inspection along the line. No matter which solution is adopted, it requires a large number of personnel, a lot of time and energy, and the work efficiency is low, and the fault repair speed is slow.

[0003] In order to solve the above technical problems, the currently available line fault warning and positioning devices can be directly installed on the line for monitoring, which greatly reduces the labor cost. However, since the height of overhead lines is generally high, high-altitude installation is required. Especially when the installation volume is large, frequent climbing is required, and there is a great safety hazard of falling from height. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a distribution network overhead line fault early warning and precise positioning device to overcome the deficiencies in the above-mentioned prior art.

[0005] The utility model provides a technical solution to the above-mentioned technical problem as follows: a distribution network overhead line fault warning and precise positioning device, comprising a main body; the main body comprising an upper shell, a lower shell and a connecting buckle; the lower end surface of the upper shell and the middle portion of the upper end surface of the lower shell are matched and axially provided with a cable trough for placing cables; the connecting buckle comprises a screw, a connecting rod and a buckle connected in sequence; the lower end surface of the upper shell is located on one side of the cable trough and is provided with a threaded connection seat; one end of the screw of the connecting buckle passes through the lower shell from below and is threadedly connected to the threaded connection seat; the connecting rod is rotatably connected to the lower shell;

[0006] The buckle ring is detachably connected to the lock buckle of the insulating mounting rod through an unlocking mechanism of the insulating mounting rod.

[0007] The beneficial effects of the present invention are as follows: before use, the connecting buckle is first rotated to open the upper shell and the lower shell of the host body to a distance that allows the line conductor to pass through, the connecting buckle is connected to the lock buckle of the insulating mounting rod, the host body is lifted up and sent to the vicinity of the line conductor, the position of the insulating mounting rod is adjusted so that the line conductor is in the wire groove of the upper shell and the lower shell, the insulating mounting rod is rotated to drive the lock buckle to rotate, and then drive the screw to be screwed into the threaded connecting seat, so that the upper shell and the lower shell of the host body are closed, completing the installation and fixation of the host body, and then the lock between the buckle and the lock buckle is released by the unlocking mechanism, and the insulating mounting rod can be retracted; the device does not require high-altitude operations, thus avoiding the safety risk of falling from a height. In addition, since there is no need to be close to the line, the risk of electric shock can also be avoided.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a limit block is provided on one side of the lower end surface of the upper shell body close to the threaded connection seat, and a limit seat corresponding to the limit block is provided on the upper end surface of the lower shell body, and the limit block is movable and retractable in the limit seat.

[0010] Furthermore, the main body also includes two semi-annular power-taking cores, two semi-annular current sensors, and a voltage sensor disposed at the bottom of the lower shell, respectively, disposed in the upper shell and the lower shell; the power-taking core and the current sensor are coaxially arranged with the wire slot, and the inner diameter of the power-taking core and the current sensor is greater than or equal to the diameter of the wire slot;

[0011] A main board and a power board are also provided in the upper shell and the lower shell. The electric iron core is electrically connected to the power board. The power board, the current sensor and the voltage sensor are all electrically connected to the main board.

[0012] Furthermore, a battery pack is provided in the host body, and the battery pack is electrically connected to the power board.

[0013] Furthermore, solar panels are respectively provided on the top and both sides of the upper shell, and the solar panels are electrically connected to the power panel.

[0014] Furthermore, a positioning module is provided in the host body, and the positioning module is electrically connected to the mainboard.

[0015] Furthermore, a communication module is provided in the host body, and the communication module is electrically connected to the main board.

[0016] Furthermore, a device switch is electrically connected between the main board and the power board, and the device switch is arranged on one side of the host body.

[0017] Furthermore, an insulating plate is provided on the surface of the wire trough on the upper end face of the lower shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the explosion structure of the main body of the utility model;

[0019] Figure 2 This is a schematic diagram of the main body structure of the utility model;

[0020] Figure 3 This is a circuit structure diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the host body and the insulating mounting rod of the utility model Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the connection structure between the host body and the insulating mounting rod of the utility model Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the existing insulation mounting rod structure.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Host body; 101. Upper shell; 102. Threaded connection seat; 103. Limit block; 104. Lower shell; 105. Limit seat; 106. Wire trough; 107. Connecting buckle; 1071. Screw; 1072. Connecting rod; 1073. Retaining ring; 108. Power core; 109. Current sensor; 110. Voltage sensor; 111. Main board; 112. Power board; 113. Battery pack; 114. Solar panel; 115. Positioning module; 116. Communication module; 117. Device switch; 118. Insulating plate; 2. Insulating mounting rod; 201. Lock; 202. Insulating rod body; 203. Unlocking mechanism. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figures 1 to 6As shown, embodiment 1, a distribution network overhead line fault warning and precise positioning device, includes a main body 1 and an insulating mounting rod 2; the main body 1 includes an upper shell 101, a lower shell 104 and a connecting buckle 107, the lower end surface of the upper shell 101 and the middle part of the upper end surface of the lower shell 104 match, and a cable groove 106 for placing cables is axially provided, the connecting buckle 107 includes a screw rod 1071, a connecting rod 1072 and a buckle 1073 connected in sequence, the lower end surface of the upper shell 101 is located on one side of the cable groove 106 and is provided with a threaded connection seat 102, one end of the screw rod 1071 of the connecting buckle 107 passes through the lower shell 104 from the bottom, and is threadedly connected to the threaded connection seat 102, and the connecting rod 1072 is rotatably connected to the lower shell 104;

[0028] The buckle 1073 is detachably connected to the lock buckle 201 of the insulating mounting rod 2 via the unlocking mechanism 203 of the insulating mounting rod 2 .

[0029] Before use, first rotate the connecting buckle 107 to open the upper shell 101 and the lower shell 104 of the host body 1 to a distance that allows the line wire to pass through, connect the connecting buckle 107 with the lock buckle 201 of the insulating mounting rod 2, lift the host body 1 to the vicinity of the line wire, adjust the position of the insulating mounting rod 2 so that the line wire is in the wire groove 106 of the upper shell 101 and the lower shell 104, rotate the insulating mounting rod 2 to drive the lock buckle 201 to rotate, and then drive the screw 1071 to screw into the threaded connecting seat 102, so that the upper shell 101 and the lower shell 104 of the host body 1 are closed, completing the installation and fixation of the host body 1, and then release the lock between the buckle 1073 and the lock buckle 201 through the unlocking mechanism 203, and retract the insulating mounting rod 2; this device does not require high-altitude work, thus avoiding the safety risk of falling from a height. In addition, since it does not require being close to the line, it can also avoid the risk of electric shock;

[0030] In the specific implementation, the insulating mounting rod 2 adopts an existing mature product, and the device is adapted to the existing insulating mounting rod 2, which reduces the research and development cost of the device and expands the use scenarios of the insulating mounting rod 2; in addition, two positioning holes are provided on both sides of the buckle 1073 at the bottom of the main body 1, and the positioning holes are interference fit with the positioning columns at the top of the lock buckle 201 of the insulating mounting rod 2. When the buckle 1073 is connected to the lock buckle 201, the positioning columns are inserted into the positioning holes to play a locking role.

[0031] Example 2: This example is a further improvement on Example 1, and its details are as follows:

[0032] A limit block 103 is provided on the lower end face of the upper housing 101, near the threaded connection seat 102. A limit seat 105 corresponding to the limit block 103 is provided on the upper end face of the lower housing 104. The limit block 103 is movable and retractable within the limit seat 105. The arrangement of the limit block 103 and the limit seat 105 ensures that when the connecting buckle 107 is rotated, the upper housing 101 does not rotate with it, but only moves longitudinally to close or open. In addition, they also serve a positioning function. When the main body 1 is suspended on the line conductor, the line conductor is located directly above the wire groove 106 due to the blocking effect of the limit block 103 and the limit seat 105, facilitating alignment.

[0033] Example 3: This example is a further improvement on Example 1, and its details are as follows:

[0034] The main body 1 further includes two semi-annular power-taking cores 108, two semi-annular current sensors 109, and a voltage sensor 110 disposed at the bottom of the lower housing 104, respectively. The power-taking cores 108 and the current sensor 109 are coaxially arranged with the wire slot 106, and the inner diameters of the power-taking cores 108 and the current sensor 109 are greater than or equal to the diameter of the wire slot 106.

[0035] A main board 111 and a power board 112 are also provided in the upper shell 101 and the lower shell 104 . The electric iron core 108 is electrically connected to the power board 112 . The power board 112 , the current sensor 109 and the voltage sensor 110 are all electrically connected to the main board 111 .

[0036] The power-taking core 108 and the current sensor 109 are both built-in and do not need to be connected through external wires. The built-in wiring, power-taking core 108 and current sensor 109 are protected from sun and rain, which greatly improves the service life of the device and reduces safety hazards.

[0037] Example 4: This example is a further improvement on Example 3, and its details are as follows:

[0038] A battery pack 113 is provided in the host body 1, and the battery pack 113 is electrically connected to the power board 112. It can be used as an emergency power supply to power the device.

[0039] Example 5: This example is a further improvement on Example 3, and its details are as follows:

[0040] Solar panels 114 are provided on the top and both sides of the upper housing 101, and are electrically connected to the power supply board 112. The solar panels 114 can directly power the host body 1 through the power supply board 112, and can also charge the battery pack 113.

[0041] Example 6: This example is a further improvement on Example 3, and its details are as follows:

[0042] A positioning module 115 is provided in the host body 1 and is electrically connected to the main board 111. The positioning module 115 can provide positioning information and time information of the device to facilitate tracking the location of the device.

[0043] Example 7: This example is a further improvement on Example 6, and its details are as follows:

[0044] A communication module 116 is provided within the host body 1 and is electrically connected to the mainboard 111. The communication module 116 can transmit the magnetic field signal of the line conductor collected by the current sensor 109 and the electric field signal of the line conductor collected by the voltage plate to the terminal, allowing maintenance personnel to determine the status of the line conductor.

[0045] Example 8: This example is a further improvement on Example 3, and its details are as follows:

[0046] A device switch 117 is electrically connected between the main board 111 and the power board 112. The device switch 117 is provided on one side of the host body 1. The device switch 117 can be operated to start or cut off the power supply of the host body 1 as required.

[0047] Example 9: This example is a further improvement on Example 1, and its details are as follows:

[0048] An insulating plate 118 is provided on the surface of the wire groove 106 on the upper end surface of the lower housing 104 to isolate the line conductors from the power core 108 and the components inside the lower housing 104, thereby reducing the impact of the line conductors on the internal components of the device.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A distribution network overhead line fault warning and precise positioning device, characterized in that: The present invention comprises a host body (1); the host body (1) comprises an upper shell (101), a lower shell (104) and a connecting buckle (107); the lower end surface of the upper shell (101) matches the middle part of the upper end surface of the lower shell (104) and is axially provided with a cable groove (106) for placing cables; the connecting buckle (107) comprises a screw rod (1071), a connecting rod (1072) and a buckle (1073) connected in sequence; the lower end surface of the upper shell (101) is located on one side of the cable groove (106) and is provided with a threaded connection seat (102); one end of the screw rod (1071) of the connecting buckle (107) passes through the lower shell (104) from the bottom of the lower shell (104) and is threadedly connected to the threaded connection seat (102); the connecting rod (1072) is rotatably connected to the lower shell (104); The buckle (1073) and the lock buckle (201) of the insulating mounting rod (2) are detachably connected via an unlocking mechanism (203) of the insulating mounting rod (2).

2. A distribution network overhead line fault early warning and precise positioning device according to claim 1, characterized in that: A limit block (103) is provided on the side of the lower end surface of the upper shell (101) close to the threaded connection seat (102), and a limit seat (105) corresponding to the limit block (103) is provided on the upper end surface of the lower shell (104), and the limit block (103) is movable and retractable in the limit seat (105).

3. A distribution network overhead line fault early warning and precise positioning device according to claim 1, characterized in that: The host body (1) further comprises two semi-annular power-taking cores (108), two semi-annular current sensors (109) respectively arranged in the upper shell (101) and the lower shell (104), and a voltage sensor (110) arranged at the bottom of the lower shell (104); the power-taking core (108) and the current sensor (109) are coaxially arranged with the wire slot (106), and the inner diameters of the power-taking core (108) and the current sensor (109) are greater than or equal to the diameter of the wire slot (106); A main board (111) and a power board (112) are further provided in the upper shell (101) and the lower shell (104); the power-taking iron core (108) is electrically connected to the power board (112); and the power board (112), the current sensor (109), and the voltage sensor (110) are all electrically connected to the main board (111).

4. A distribution network overhead line fault early warning and precise positioning device according to claim 3, characterized in that: A battery pack (113) is provided in the host body (1), and the battery pack (113) is electrically connected to the power board (112).

5. A distribution network overhead line fault early warning and precise positioning device according to claim 3, characterized in that: Solar panels (114) are respectively provided on the top and both sides of the upper shell (101), and the solar panels (114) are electrically connected to the power supply panel (112).

6. A distribution network overhead line fault early warning and precise positioning device according to claim 3, characterized in that: A positioning module (115) is provided in the host body (1), and the positioning module (115) is electrically connected to the main board (111).

7. A distribution network overhead line fault early warning and precise positioning device according to claim 6, characterized in that: A communication module (116) is provided in the host body (1), and the communication module (116) is electrically connected to the main board (111).

8. The device for early warning and precise positioning of a distribution network overhead line fault according to claim 3, characterized in that: A device switch (117) is electrically connected between the main board (111) and the power board (112), and the device switch (117) is arranged on one side of the host body (1).

9. The distribution network overhead line fault early warning and precise positioning device according to claim 1, characterized in that: An insulating plate (118) is provided on the surface of the wire groove (106) on the upper end surface of the lower shell (104).

Images