Electroscope for cable removal

Abstract

The application discloses a kind of electric cable removal with electricity testing wire cutting pliers, it is related to wire cutting pliers technical field, including clamp jaw body, clamp jaw body includes two jaw arms, the middle part of two jaw arms is crossed and is hinged, two jaw arms are equipped with cutting edge in the side of each other close, one end of two jaw arms is connected with handle, one handle is equipped with inductive high-low voltage electricity tester, controller, alarm and driver, locking rod is equipped on driver;When inductive high-low voltage electricity tester detects that the cable clamped by two jaw arms has voltage signal, controller controls alarm to issue alarm on one hand, controller controls driver to drive locking rod to abut on another handle on the other hand, not only prevent two handles from each other close, also prevent two jaw arms from cutting cable.The application not only can test whether cable is live, but also can mechanically prevent cutting cable when cable is live, reduce the risk of cable removal operation.

Description

Technical Field

[0001] This invention relates to the field of wire cutter technology, specifically to a type of wire cutter for cable removal and voltage testing. Background Technology

[0002] The cable trenches in substations are small and contain a large number of various control cables and power cables that are intertwined.

[0003] The power to the cable must be cut off before the cable can be removed.

[0004] However, live and non-live cables are indistinguishable in appearance and cannot be identified by the naked eye. On-site workers may make incorrect judgments and remove live cables, which may cause equipment damage, power grid accidents, or even personal injury.

[0005] A search revealed that patent CN219625588U discloses "A Clamp-Type High and Low Voltage Detector," such as... Figure 15 As shown, the patent includes a clamp body 1 and an inductive high and low voltage detector 2. The clamp body 1 includes two insulated clamp arms 11. The two clamp arms 11 cross each other at the middle and are hinged to each other. One end of each clamp arm 11 is connected to a handle 12. The inductive high and low voltage detector 2 is mounted on one of the clamp arms 11 and is connected to an audible and visual alarm through a controller 3.

[0006] The process of using the above-mentioned patent is as follows: First, the power is cut off to the cable under maintenance. Then, the clamp-type high and low voltage detector is clamped onto the cable. If the inductive high and low voltage detector senses a voltage signal, it indicates that there is current. The staff needs to check to ensure that the inductive high and low voltage detector cannot detect a voltage signal before the maintenance work can begin.

[0007] As can be seen from the above description, although the aforementioned patent can detect whether a cable is energized, it cannot cut the cable. Furthermore, the aforementioned patent only serves as a warning to staff, and there is a risk that staff may ignore the warning and continue to remove energized cables. Summary of the Invention

[0008] This invention addresses the aforementioned shortcomings of existing technologies by providing a cable disconnector clamp. This invention can not only test whether a cable is energized, but also mechanically prevent the cable from being cut when it is energized, thereby reducing the risk of cable disconnection operations.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A type of cable removal and wire disconnecting pliers includes a clamp body, an inductive high and low voltage detector, a controller, and an alarm. The clamp body includes two clamp arms that are crossed and hinged at the middle. A handle is connected to one end of each clamp arm. The inductive high and low voltage detector is connected to the alarm through the controller. Each clamp arm has a blade on the side closest to it. The inductive high and low voltage detector, controller, alarm, and driver are mounted on one handle. The controller is connected to the driver, and the driver has a locking lever.

[0011] When the inductive high and low voltage detector detects a voltage signal in the cable held by the two clamp arms, the controller controls the alarm to sound an alarm, and the controller controls the driver to drive the locking lever to abut against the other handle, which not only prevents the two handles from getting close to each other, but also prevents the two clamp arms from cutting the cable.

[0012] Furthermore, the clamp arm and the blade are conductive, and the clamp arm is connected to the probe of the inductive high and low voltage detector via a wire.

[0013] Furthermore, the driver is a motor, which is mounted on the handle, and the output end of the motor is connected to one end of the locking lever;

[0014] When the inductive high and low voltage detector detects a voltage signal in the cable held by the two clamp arms, the controller controls the motor to drive the locking lever to rotate, so that the end of the locking lever away from the motor abuts against the handle without a motor.

[0015] When the inductive high and low voltage detector does not detect a voltage signal in the cable held by the two clamp arms, the controller controls the motor to drive the locking lever to rotate in the opposite direction, causing the locking lever to leave the handle without a motor.

[0016] Furthermore, the locking rod is provided with a dovetail groove, the long side of which is set along the long side of the locking rod. An extension rod is slidably connected in the dovetail groove. The extension rod is provided with a sliding pin on the side away from the dovetail groove. The handle with the motor is provided with an arc-shaped groove. The upper end of the arc-shaped groove is close to the motor, and the upper end of the arc-shaped groove is open. The lower end of the arc-shaped groove is away from the motor. The sliding pin is slidably engaged with the arc-shaped groove.

[0017] When the inductive high and low voltage detector detects a voltage signal in the cable held by the two clamp arms, the controller controls the motor to drive the locking rod to rotate. The sliding pin slides from the opening into the arc groove, and then slides from the upper end of the arc groove to the lower end of the arc groove. The extension rod slides outward from the dovetail groove, and the end of the extension rod extending from the dovetail groove abuts against the handle without a motor.

[0018] Furthermore, the actuator employs a telescopic rod, which is mounted on a handle, and the output end of the telescopic rod is connected to one end of the locking rod;

[0019] When the inductive high and low voltage detector detects a voltage signal in the cable held by the two clamp arms, the controller controls the output end of the telescopic rod to extend the locking rod, so that the end of the locking rod away from the telescopic rod abuts against the handle without the telescopic rod.

[0020] When the inductive high and low voltage detector does not detect a voltage signal in the cable held by the two clamp arms, the controller controls the output end of the telescopic rod to drive the locking rod to retract, so that the locking rod leaves the handle without the telescopic rod.

[0021] Furthermore, the handle without the driver is provided with a locking block, which is used to abut against the end of the locking lever away from the driver.

[0022] Furthermore, each of the two clamp arms is provided with an insulating push rod. One end of the insulating push rod is connected to the end of the clamp arm near the handle, and the other end and the middle part of the insulating push rod are bent away from the clamp arm.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. In this invention, the inductive high and low voltage detector can detect whether the cable is energized; the blade design allows the two clamp arms to cut the cable; thus, this invention can not only detect whether the cable is energized, but also cut the cable.

[0025] Furthermore, the alarm can alert workers; the actuator and locking lever are designed so that when the inductive high and low voltage detector detects that the cable is live, the actuator will drive the locking lever to prevent the two handles from getting close to each other, thus mechanically preventing the two clamp arms from cutting the cable. Even if workers ignore the alarm, it can prevent the removal of the live cable, reducing the risk of cable removal operations and improving operational safety.

[0026] 2. Because the probe of the inductive high and low voltage detector is connected to the conductive clamp arms through a wire, and the two clamp arms are clamped on the live cable, if the cable held by the two clamp arms is live, the inductive high and low voltage detector connected to the clamp arms through the wire can get closer to the cable and more accurately detect whether the cable is live, which helps to improve the accuracy of voltage detection.

[0027] 3. In this invention, the dovetail groove, extension rod, sliding pin, and arc-shaped groove allow for adjustment of the locking rod's length. When the cable is energized, the extension rod extends the locking rod to abut against the handle without a motor, thus accommodating a larger distance between the two handles. When the cable is de-energized, the extension rod retracts into the locking rod, reducing its length, saving space, and improving usability.

[0028] 4. In this invention, the extension rod is adaptively adjusted as the locking rod rotates, requiring no additional operation, which helps to improve adjustment efficiency.

[0029] 5. In this invention, the locking block can compensate for the length of the locking rod when the length of the locking rod is insufficient, so as to adapt to a larger distance between the two handles and improve the flexibility of use.

[0030] 6. In this invention, if a telescopic rod is used as the actuator, it can also prevent the two handles from getting close to each other when the cable is energized, thereby preventing the two clamp arms from cutting the energized cable, which can also improve the safety of use.

[0031] 7. In this invention, during the process of using two clamp arms to cut the cable, the two clamp arms approach each other, while at the same time, the two insulating push rods push each other away. The remaining cables located on both sides of the two insulating push rods can be pushed away from the cable being clamped by the insulating push rods, which increases the working space and working field of vision, making it easier for workers to observe the working situation and improving the flexibility of use. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the cable disconnector pliers used in Example 1.

[0033] Figure 2 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 1. Figure 1 ;

[0034] Figure 3 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 1. Figure 2 ;

[0035] Figure 4 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 1. Figure 3 ;

[0036] Figure 5 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 1. Figure 4 ;

[0037] Figure 6 This is a schematic diagram of the cable disconnector used in Example 2;

[0038] Figure 7 This is a schematic diagram of the structure of the voltage testing and wire cutting pliers used for cable removal in Example 3. Figure 1 ;

[0039] Figure 8 This is a schematic diagram of the structure of the voltage testing and wire cutting pliers used for cable removal in Example 3. Figure 2 ;

[0040] Figure 9 for Figure 8A magnified view of a section at point A in the middle;

[0041] Figure 10 This is a schematic diagram of the cable disconnector pliers used in Example 5.

[0042] Figure 11 This is a schematic diagram of the cable disconnector pliers used in Example 6.

[0043] Figure 12 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 6. Figure 1 ;

[0044] Figure 13 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 6. Figure 2 ;

[0045] Figure 14 This is a schematic diagram illustrating the use of the voltage tester and wire cutter for cable removal in Example 6. Figure 3 ;

[0046] Figure 15 This is a schematic diagram of the background technology.

[0047] In the picture:

[0048] 1-Pliers body, 11-Pliers arm, 12-Handle, 121-Arc groove, 122-Locking block, 13-Blade edge,

[0049] 2-Inductive high and low voltage detector,

[0050] 3-Controller

[0051] 4-Alarm device,

[0052] 5-Motor,

[0053] 6-Locking lever, 61-Dovetail groove, 611-Extension lever, 6111-Sliding pin,

[0054] 7-Wire,

[0055] 8-Telescopic pole,

[0056] 9-Mounting base,

[0057] 10-Insulated push rod,

[0058] DL-cable. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Example 1:

[0061] like Figure 1-5 As shown, a type of cable removal voltage testing and disconnecting pliers includes a clamp body 1, an inductive high and low voltage detector 2, a controller 3, an alarm 4, a driver, and a locking lever 6.

[0062] like Figure 1-5 As shown, the clamp body 1 includes two clamp arms 11, which are crossed and hinged in the middle. An insulated handle 12 is fixedly connected to one end of each clamp arm 11, and a blade 13 is provided on the side of each clamp arm 11 that is close to each other.

[0063] like Figure 1-5 As shown, an inductive high and low voltage detector 2, a controller 3, an alarm 4, and a driver are fixedly mounted on the side of a handle 12.

[0064] The inductive high and low voltage detector 2 is electrically connected to the controller 3, and the controller 3 is electrically connected to the alarm 4 and the driver. The controller 3 includes a power supply, which can be used to power the driver and the alarm 4.

[0065] The driver uses motor 5, the housing of motor 5 is fixedly installed on the side of handle 12, and the output end of motor 5 is fixedly connected to one end of locking lever 6.

[0066] Alarm 4 can be a warning light or an audible and visual alarm.

[0067] When the inductive high and low voltage detector 2 detects a voltage signal in the cable DL held by the two clamp arms 11, on the one hand, the controller 3 controls the alarm 4 to sound an alarm; on the other hand, the controller 3 controls the motor 5 to drive the locking lever 6 to rotate clockwise, so that the end of the locking lever 6 away from the motor 5 abuts against the handle 12 where the motor 5 is not installed. Figure 3 As shown, at this time, the locking lever 6 prevents the two handles 12 from getting close to each other. Because the two handles 12 cannot get close to each other, it can mechanically prevent the two clamp arms 11 from clamping the cable DL.

[0068] When the inductive high and low voltage detector 2 does not detect a voltage signal on the cable DL held by the two clamp arms 11, on the one hand, the controller 3 controls the alarm 4 to stop emitting an alarm; on the other hand, the controller 3 controls the motor 5 to drive the locking lever 6 to rotate in the opposite direction, so that the locking lever 6 leaves the handle 12 without the motor 5 installed. At this time, the two handles 12 can approach each other, and the operator can squeeze the two handles 12 to approach each other, so that the blades 13 on the two clamp arms 11 approach each other to cut the cable DL and achieve the clamping and breaking of the cable DL.

[0069] As can be seen from the above process, in this embodiment, the inductive high and low voltage detector 2 can be used to check whether the cable DL is energized; the blade 13 can be used to allow the two clamp arms 11 to cut the cable DL; thus, this embodiment can not only check whether the cable DL is energized, but also cut the cable DL.

[0070] Furthermore, the alarm 4 can alert the staff; the driver and locking lever 6 can prevent the two handles 12 from getting close to each other when the inductive high and low voltage detector 2 detects that the cable DL is energized. This mechanically prevents the two clamp arms 11 from clamping the cable DL. Even if the staff ignores the warning of the alarm 4, it can prevent the removal of the energized cable DL, reduce the risk of cable DL removal operations, and improve the safety of the operation.

[0071] In addition, such as Figure 5 As shown, in this embodiment, the inductive high and low voltage detector 2, controller 3, driver, and alarm 4 are all installed on the side of the handle 12, which can prevent the inductive high and low voltage detector 2, controller 3, driver, and alarm 4 from causing obstruction when the two handles 12 are close to each other.

[0072] Example 2:

[0073] This embodiment 2 is an improvement upon embodiment 1:

[0074] like Figure 6 As shown, in this embodiment 2, the clamp arm 11 and the blade 13 are conductive, and the clamp arm 11 is connected to the probe of the inductive high and low voltage detector 2 through the wire 7.

[0075] Because the probe of the inductive high and low voltage detector 2 is connected to the conductive clamp arm 11 through the wire 7, and the two clamp arms 11 are clamped on the live cable DL, if the cable DL held by the two clamp arms 11 is live, the inductive high and low voltage detector 2 connected to the clamp arm 11 through the wire 7 can get closer to the cable DL and can more accurately detect whether the cable DL is live, which is beneficial to improving the accuracy of voltage detection.

[0076] Example 3:

[0077] This embodiment 3 is an improvement upon embodiment 1 or embodiment 2:

[0078] like Figure 7-9 As shown, when the driver uses a motor 5, the locking rod 6 is provided with a dovetail groove 61, the long side of the dovetail groove 61 is set along the long side of the locking rod 6, an extension rod 611 is slidably connected in the dovetail groove 61, and a sliding pin 6111 is fixedly installed on the side of the extension rod 611 away from the dovetail groove 61. The handle 12 of the motor 5 is provided with an arc groove 121, the upper end of the arc groove 121 is close to the motor 5, the upper end of the arc groove 121 is open, and the lower end of the arc groove 121 is away from the motor 5. The sliding pin 6111 is slidably engaged with the arc groove 121.

[0079] When the inductive high and low voltage detector 2 detects a voltage signal in the cable DL held by the two clamp arms 11, the controller 3 controls the motor 5 to drive the locking rod 6 to rotate clockwise. The locking rod 6 drives the extension rod 611 to rotate clockwise as well. During the clockwise rotation of the extension rod 611, the sliding pin 6111 on the extension rod 611 enters the arc groove 121 from the upper opening of the arc groove 121, and then slides from the upper end of the arc groove 121 to the lower end of the arc groove 121. Because the upper end of the arc groove 121 is close to the motor 5 and the lower end of the arc groove 121 is far away from the motor 5, the extension rod 611 gradually slides outward from the dovetail groove 61. The end of the extension rod 611 extending out of the dovetail groove 61 can abut against the handle 12 without the motor 5.

[0080] When the inductive high and low voltage detector 2 does not detect a voltage signal in the cable DL held by the two clamp arms 11, the controller 3 controls the motor 5 to drive the locking rod 6 to rotate in the opposite direction. The locking rod 6 drives the extension rod 611 to rotate in the opposite direction as well. The sliding pin 6111 on the extension rod 611 slides from the lower end of the arc groove 121 to the upper end of the arc groove 121, and then slides out from the upper opening of the arc groove 121, so that the extension rod 611 retracts back into the dovetail groove 61, and the locking rod 6 leaves the handle 12 where the motor 5 is not installed.

[0081] As can be seen from the above process, the dovetail groove 61, extension rod 611, sliding pin 6111, and arc groove 121 allow for adjustment of the length of the locking rod 6. When the cable DL is energized, the extension rod 611 can extend the length of the locking rod 6 to abut against the handle 12 without the motor 5, thus accommodating a larger distance between the two handles 12; when the cable DL is not energized, the extension rod 611 retracts into the locking rod 6, reducing the length of the locking rod 6, saving space, and improving the flexibility of use.

[0082] Furthermore, the extension rod 611 is adaptively adjusted as the locking rod 6 rotates, requiring no additional operation and thus improving adjustment efficiency.

[0083] Example 4:

[0084] This embodiment 4 is a further improvement on embodiment 1, embodiment 2, or embodiment 3:

[0085] like Figure 1-6 As shown, a locking block 122 is fixedly installed on the handle 12 without the driver installed. The locking block 122 is used to abut against the end of the locking lever 6 away from the driver.

[0086] The locking block 122 can compensate for the length of the locking lever 6 when the length of the locking lever 6 is not long enough, so as to adapt to the larger gap between the two handles 12 and improve the flexibility of use.

[0087] Example 5:

[0088] This embodiment 5 presents a driver that differs from that of embodiment 1.

[0089] like Figure 10 As shown, in this embodiment 5, the driver uses a telescopic rod 8, which can be an electric push rod. The telescopic rod 8 is fixedly mounted on the mounting base 9, which is fixedly mounted on the side of a handle 12. The output end of the telescopic rod 8 is fixedly connected to one end of the locking rod 6.

[0090] When the inductive high and low voltage detector 2 detects a voltage signal in the cable DL held by the two clamp arms 11, the controller 3 controls the output end of the telescopic rod 8 to drive the locking rod 6 to extend, so that the end of the locking rod 6 away from the telescopic rod 8 abuts against the handle 12 where the telescopic rod 8 is not installed.

[0091] When the inductive high and low voltage detector 2 does not detect a voltage signal in the cable DL held by the two clamp arms 11, the controller 3 controls the output end of the telescopic rod 8 to drive the locking rod 6 to retract, so that the locking rod 6 leaves the handle 12, which is not equipped with the telescopic rod 8.

[0092] As can be seen from the above process, using the telescopic rod 8 as the actuator can also prevent the two handles 12 from getting close to each other when the cable DL is energized, thereby preventing the two clamp arms 11 from clamping the energized cable DL, which can also improve the safety of use.

[0093] Example 6:

[0094] This embodiment 6 is a further improvement on embodiment 1, embodiment 2, embodiment 3, embodiment 4, or embodiment 5:

[0095] like Figure 11-14 As shown in this embodiment 6, each of the two clamp arms 11 is provided with an insulating push rod 10. One end of the insulating push rod 10 is connected to the end of the clamp arm 11 near the handle 12, and the other end and the middle part of the insulating push rod 10 are bent away from the clamp arm 11.

[0096] like Figures 13 to 14 As can be seen from the state changes, during the process of using the two clamp arms 11 to cut the cable DL, the two clamp arms 11 move closer to each other, while at the same time, the two insulating push rods 10 push each other away. The remaining cable DL located on both sides of the two insulating push rods 10 can be pushed away from the cable DL being cut by the insulating push rods 10, which increases the working space and working field of vision, makes it easier for the staff to observe the working situation, and improves the flexibility of use.

[0097] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A type of cable disconnecting and voltage testing pliers, comprising a clamp body, an inductive high and low voltage detector, a controller, and an alarm, wherein the clamp body includes two clamp arms that are crossed and hinged at the middle, and a handle is connected to one end of each clamp arm; the inductive high and low voltage detector is connected to the alarm via the controller, characterized in that... Both clamp arms have blades on their sides that are close to each other. One handle is equipped with the inductive high and low voltage detector, the controller, the alarm, and the driver. The controller is connected to the driver, which is a motor. The output end of the motor is connected to one end of the locking rod. The locking rod has a dovetail groove with its long side along the long side of the locking rod. An extension rod is slidably connected inside the dovetail groove. The extension rod has a sliding pin on its side away from the dovetail groove. The handle with the motor has an arc-shaped groove with its upper end close to the motor and an opening at the upper end. The lower end of the arc-shaped groove is away from the motor. The sliding pin is slidably engaged with the arc-shaped groove. When the inductive high and low voltage detector detects a voltage signal in the cable held by the two clamp arms, on the one hand, the controller controls the alarm to sound an alarm, and on the other hand, the controller controls the motor to drive the locking rod to rotate. The sliding pin slides from the opening into the arc groove, and then slides from the upper end of the arc groove to the lower end of the arc groove. The extension rod slides outward from the dovetail groove. The end of the extension rod extending from the dovetail groove abuts against the handle without the motor, which not only prevents the two handles from getting close to each other, but also prevents the two clamp arms from cutting the cable. When the inductive high and low voltage detector does not detect a voltage signal in the cable held by the two clamp arms, the controller controls the motor to drive the locking lever to rotate in the opposite direction, so that the locking lever leaves the handle without a motor. Both clamp arms are equipped with insulating push rods. One end of the insulating push rod is connected to the end of the clamp arm near the handle, and the other end and the middle part of the insulating push rod are bent away from the clamp arm.

2. The cable disconnecting and testing pliers as described in claim 1, characterized in that, The clamp arm and the blade are conductive, and the clamp arm is connected to the probe of the inductive high and low voltage detector via a wire.

3. The cable disconnecting and testing pliers as described in claim 1, characterized in that, The handle without the driver is provided with a locking block, which is used to abut against the end of the locking lever away from the driver.

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