Electric insulating telescopic rod

Abstract

The utility model belongs to power equipment, and particularly relates to an electric insulation telescopic rod which comprises a base, a first round rod, a second round rod and a third round rod. The first round rod, the second round rod and the third round rod are coaxial, the second round rod and the third round rod are cylindrical, the first round rod is sleeved with the second round rod, and the second round rod is sleeved with the third round rod; a spiral rail groove is formed in the side wall of the first round rod and extends from one end of the first round rod to the other end of the first round rod, and a guide pin is arranged on the second round rod and penetrates through the rail groove; a linear groove is formed in the side wall of the second round rod and extends in the axial direction of the second round rod, and a limiting pin is arranged on the third round rod and inserted into the linear groove. The first round rod is rotationally connected with the base and can rotate around the axis of the first round rod relative to the base, and the third round rod is fixedly connected with the base, so that the second round rod extends out of the gap between the first round rod and the third round rod in the axial direction of the second round rod. The telescopic device can stretch out and draw back to any position within the telescopic range of the telescopic device.

Description

Technical Field

[0001] The utility model belongs to the technical field of operating rods, and particularly relates to an electric insulating telescopic rod. Background Art

[0002] Insulating operating rods are widely used in power equipment such as electroscopes, switching rods, grounding rods, etc. for operations such as closing or opening high-voltage disconnectors, installing and removing portable grounding wires, etc.

[0003] At present, a kind of retractable insulating operating rod includes multiple sections of electric insulating telescopic rods, and the multiple sections of electric insulating telescopic rods are threadedly connected to achieve the telescopic effect. In some working areas with limited space, if an additional section of electric insulating telescopic rod is added, the overall length of the insulating operating rod will exceed the ideal size and is not convenient for operation. If an additional section of electric insulating telescopic rod is not added, the overall length of the insulating operating rod is not enough to reach the designated operating position, and it is necessary to add a cushion on the ground and personnel stand on the cushion to make up for the missing length.

[0004] Therefore, the existing insulating operating rods are not convenient for personnel to operate. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: aiming at the problem that the existing insulating operating rods are not convenient for personnel to operate, an electric insulating telescopic rod is provided.

[0006] To solve the above technical problem, an embodiment of the utility model provides an electric insulating telescopic rod,

[0007] including a base, a first round rod, a second round rod and a third round rod; the first round rod, the second round rod and the third round rod are coaxial, the second round rod and the third round rod are both hollow rods, the second round rod is sleeved outside the first round rod, and the third round rod is sleeved outside the second round rod;

[0008] A spiral track groove is arranged on the outer peripheral wall of the first round rod, the track groove spirally extends from one end of the first round rod to the other end, a guiding pin is arranged on the second round rod, and the guiding pin penetrates through the track groove;

[0009] A straight groove is arranged on the outer peripheral wall of the second round rod, the straight groove extends along the axial direction of the second round rod, a limiting pin is arranged on the third round rod, and the limiting pin is inserted into the straight groove;

[0010] The first round rod is rotatably connected to the base, the first round rod can rotate relative to the base around its own axis, the third round rod is fixedly connected to the base, so that the second round rod can extend or enter the space between the first round rod and the third round rod along its own axis.

[0011] Optionally, it further includes a driving motor, which is installed on the base, and an output shaft of the driving motor is connected to the first round rod, and the driving motor is used to drive the first round rod to rotate.

[0012] Optionally, the base has a cavity with a one-way opening, the opening of the cavity faces the first round rod, the driving motor is arranged in the cavity, and the third round rod is fixed on the end of the base.

[0013] Optionally, anti-slip ribs are arranged on the base, the anti-slip ribs protrude from the outer peripheral wall of the base, there are a plurality of the anti-slip ribs, and the plurality of anti-slip ribs are arranged around the base.

[0014] Optionally, the first round rod is a hollow rod, the track groove is arranged on the side wall of the first round rod, and the guiding pin extends into the first round rod.

[0015] Optionally, a working head is arranged at one end of the second round rod away from the base, and the working head is detachably connected to the second round rod.

[0016] Optionally, it further includes a battery and a control board, the battery is arranged in the base, the battery is electrically connected to the control board, and the control board is electrically connected to the driving motor.

[0017] Optionally, an MCU chip is arranged on the control board.

[0018] Optionally, it further includes a position switch, the position switch is arranged at one end of the second round rod close to the base, the position switch is signal-connected to the control board, and the position switch is used to sense the position of the second round rod.

[0019] Optionally, a transfer member is arranged between the driving motor and the first round rod, the transfer member is bolted to the end of the first round rod, and the transfer member is fixed on the output shaft of the driving motor.

[0020] For an electric insulating telescopic rod according to an embodiment of the present invention, when the first round rod rotates forward, the first round rod can drive the second round rod to extend away from the base, and when the first round rod rotates reversely, the second round rod can drive the first round rod to retract towards the base into the interval between the first round rod and the third round rod. In this embodiment, through the cooperation of the spiral groove and the guiding pin and then combined with the cooperation of the linear groove and the limiting pin, the reciprocating motion of the second round rod is finally realized, achieving the telescopic effect. Description of the Drawings

[0021] Figure 1 It is an overall schematic diagram of an electric insulating telescopic rod provided by an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the cooperation between the third round rod and the second round rod of an electric insulating telescopic rod provided by an embodiment of the present utility model;

[0023] Figure 3 Schematic diagram of the cooperation between the first round rod and the second round rod of an electric insulating telescopic rod provided by an embodiment of the present utility model;

[0024] Figure 4 Explosion diagram of an electric insulating telescopic rod provided by an embodiment of the present utility model;

[0025] Figure 5 Explosion diagram of the base and the drive motor of an electric insulating telescopic rod provided by an embodiment of the present utility model;

[0026] Figure 6 Circuit diagram of an electric insulating telescopic rod provided by an embodiment of the present utility model.

[0027] The reference numerals in the specification are as follows: 1, first round rod; 11, track groove; 2, second round rod; 21, linear groove; 3, third round rod; 4, base; 41, anti-slip rib; 5, working head; 6, guiding pin; 7, limiting pin; 81, drive motor; 82, battery; 83, control board; 84, terminal. Detailed implementation manners

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] As Figures 1 to 6 shown, an embodiment of the present utility model provides an electric insulating telescopic rod, including a base 4, a first round rod 1, a second round rod 2 and a third round rod 3; the first round rod 1, the second round rod 2 and the third round rod 3 are coaxial, both the second round rod 2 and the third round rod 3 are cylindrical, the second round rod 2 is sleeved outside the first round rod 1, and the third round rod 3 is sleeved outside the second round rod 2.

[0030] Referring to Figure 2 , Figure 2 In order to facilitate showing the relationship between the third round rod 3 and the second round rod 2, the third round rod 3 is made transparent, and the transparent third round rod 3 is represented by a dotted line. A linear groove 21 is provided on the outer peripheral wall of the second round rod 2, the linear groove 21 extends along the axial direction of the second round rod 2, and a limiting pin 7 is provided on the third round rod 3, and the limiting pin 7 is inserted into the linear groove 21.

[0031] Referring to Figure 3 , Figure 3Hide the third round rod 3 to show the relationship between the first round rod 1 and the second round rod 2, and make the second round rod 2 transparent. Mark the transparent second round rod 2 with a dashed line. A spiral track groove 11 is provided on the outer peripheral wall of the first round rod 1. The track groove 11 spirally extends from one end of the first round rod 1 towards the other end. A guiding pin 6 is provided on the second round rod 2, and the guiding pin 6 is inserted into the track groove 11; the guiding pin 6 is installed on the inner wall of the second round rod 2.

[0032] The first round rod 1 is rotatably connected to the base 4, and the first round rod 1 can rotate relative to the base 4 about its own axis. The third round rod 3 is fixedly connected to the base 4, so that the second round rod 2 extends axially along its own axis within the interval between the first round rod 1 and the third round rod 3.

[0033] Refer to Figure 2 and Figure 3 In this embodiment, the first round rod 1 rotates about its own axis, and the track groove 11 rotates accordingly. The guiding pin 6 slides along the track groove 11 from one end of the first round rod 1 to the other end. Since the third round rod 3 is fixed, the limit pin 7 is also fixed. The limit pin 7 is inserted into the straight groove 21, and the second round rod 2 can only reciprocate axially along its own axis and cannot rotate synchronously with the first round rod 1. Therefore, when the first round rod 1 rotates forward, the first round rod 1 can drive the second round rod 2 to extend in a direction away from the base 4. When the first round rod 1 rotates reversely, the second round rod 2 can drive the first round rod 1 to retract towards the base 4 into the interval between the first round rod 1 and the third round rod 3. In this embodiment, through the cooperation of the spiral groove and the guiding pin 6 and then combined with the cooperation of the straight groove 21 and the limit pin 7, the reciprocating motion of the second round rod 2 is finally realized, achieving a telescopic effect.

[0034] The first round rod 1, the second round rod 2, and the third round rod 3 in this embodiment are all made of epoxy resin material, which can ensure the strength of the rod body and also play an insulating effect.

[0035] Refer to Figure 5 As an example, the electric insulating telescopic rod further includes a driving motor 81. The driving motor 81 is installed on the base 4, and the output shaft of the driving motor 81 is connected to the first round rod 1. The driving motor 81 is used to drive the first round rod 1 to rotate. The driving motor 81 is a forward and reverse rotation motor. And the driving motor 81 in this embodiment can adopt motors such as servo motors or stepper motors. When such motors are in a stopped state, they can keep the output shaft stationary.

[0036] A transfer member is provided on the output shaft of the driving motor 81. The outer wall of the transfer member 9 is cylindrical. The transfer member 9 is placed inside the third round rod. There is no contact between the transfer member 9 and the third round rod. One end of the transfer member 9 is connected to the second round rod by a bolt, and the other end of the transfer member 9 is fixedly connected to the output shaft of the driving motor.

[0037] In this embodiment, a motor capable of forward and reverse rotation is used as the power source for driving the first round rod 1 to rotate, saving manpower. The driving motor 81 only drives the first round rod 1 to rotate.

[0038] Refer to Figure 4 , as an example, the base 4 has a cavity with a one-way opening, the driving motor 81 is arranged in the cavity, and the third round rod 3 is fixed on the end of the base 4. Anti-slip ridges 41 are arranged on the base 4, the anti-slip ridges 41 protrude from the outer peripheral wall of the base 4, there are a plurality of anti-slip ridges 41, and the plurality of anti-slip ridges 41 are arranged around the base 4.

[0039] The driving motor 81 is built into the base 4 to save space, and anti-slip ridges 41 are arranged on the base 4 to reduce the slipping phenomenon during holding.

[0040] As an example, the first round rod 1 is in a cylindrical shape, the track groove 11 is arranged on the side wall of the first round rod 1, and the guiding pin 6 extends into the first round rod 1. In this embodiment, the first round rod 1, the second round rod 2 and the third round rod 3 are all hollow cylindrical structures, which can make the overall electric insulating telescopic rod lightweight and save physical strength when a person lifts the electric insulating telescopic rod.

[0041] As an example, a working head 5 is arranged at one end of the second round rod 2 away from the base 4, and the working head 5 is detachably connected to the second round rod 2. The working head 5 and the second round rod 2 are detachably connected, for example, connected by bolts or the like. Different types of working heads 5 can be replaced during actual use, so as to adapt to more operation requirements.

[0042] Refer to Figure 5 , as an example, an electric insulating telescopic rod further includes a battery 82 and a control board 83. The battery 82 is arranged in the base 4, the battery 82 is electrically connected to the control board 83, and the control board 83 is electrically connected to the driving motor 81. An MCU chip is arranged on the control board 83. An opening is arranged on the base 4, a terminal 84 is arranged in the opening, the terminal 84 is connected to the battery 82, and the battery 82 is charged by inserting a charging cable into the terminal 84.

[0043] As an example, an electric insulating telescopic rod further includes a position switch. The position switch is arranged at one end of the second round rod 2 close to the base 4. The position switch is signal-connected to the control board 83, and the position switch is used to sense that the second round rod 2 moves to a preset position and transmit a signal to the control board 83. In this embodiment, the position switch is a contact sensor. After the second round rod 2 retracts, the second round rod 2 gradually approaches the base 4. After the base 4 contacts the position switch, the position switch sends a signal to the control board 83, and the control board 83 controls the driving motor 81 to stop rotating, reducing the damage to the motor caused by idling.

[0044] At least one mounting hole is provided on the base 4. A key is provided in the mounting hole, and the key is connected to the control board 83. The key can be used to control the startup of the driving motor 81 or the rotation speed of the motor, etc.

[0045] In this embodiment, on the chip of model L9110S of the control board 83, the chip has eight pins. The Pin2 pin and the Pin3 pin are the power pins of the chip. The Pin5 pin and the Pin8 pin are the power ground wires of the chip, directly connected to GND. The OA pin and the OB pin of the chip are the two pins of the H-bridge drive output. The OA pin and the OB pin are directly connected to the motor M; the IA and IB pins are the control signals of the OA pin and the OB pin respectively. When IA is at a high level, OA outputs a high voltage VCC; when IA is at a low level, OA outputs a low voltage GND. Similarly, the function of IB is the same as that of IA. In the circuit diagram, C1 and C2 are capacitors, and R1 and R2 are resistors.

[0046] In this embodiment, the logic control truth table of the L9110S chip is as follows:

[0047] IB IA Drive motor status H L Forward rotation L H Reverse rotation H H Stop

[0048] In some embodiments, although the track groove 11 extends spirally from one end of the first round rod 1 to the other end, the two ends of the track groove 11 are respectively close to the ends of the first round rod 1, and the two ends of the track groove 11 do not extend to the ends of the first round rod 1. The two ends of the track groove 11 are spaced from the end faces of the first round rod 1, and both ends of the track groove 11 are located on the outer peripheral wall of the first round rod 1, rather than extending to the end faces of the first round rod 1, so that the guiding pin 6 slides on the side wall of the first round rod 1 and will not slide out of the first round rod 1 from the end of the first round rod 1.

[0049] It should be noted that the driving motor 81, the battery 82 and the control board 83 are all installed in the base 4 made of epoxy resin material, and the base 4 can be insulated. At the same time, the base 4 is outside the safe distance of the equipment to be powered, so the electric insulating telescopic rod meets the safety specification requirements.

[0050] In some embodiments, an LED lamp is provided on the control board 83. The MCU chip also has the function of monitoring the voltage of the battery 82. When the MCU detects that the voltage of the battery 82 is lower than the set value, the MCU chip is connected to the LED lamp, and the MCU chip outputs a control high level to drive the LED indicator to flash, reminding the user to recharge in time.

[0051] An electric insulating telescopic rod according to an embodiment of the present utility model has the following working principle: A person holds the base 4 and presses the button for controlling the switch. The control board 83 sends a signal to the driving motor 81, and the driving motor 81 starts to rotate. The driving motor 81 drives the first round rod 1 to rotate, and the guiding pin 6 moves along the track groove 11, driving the second round rod 2 to move. Due to the cooperation of the limit pin 7 and the linear groove 21, the second round rod 2 can only extend axially outward. When the second round rod 2 extends to an appropriate length, the person presses the button for controlling the switch, and the control board 83 sends a signal to the driving motor 81, and the driving motor 81 stops rotating. At this time, the driving motor 81 stops rotating and remains in place, so that the extended length of the second round rod 2 remains unchanged. Then the person raises the electric insulating telescopic rod to perform operations such as closing the switch.

[0052] After the power detection or experimental operation is completed, the person starts the driving motor 81, and the driving motor 81 rotates in the reverse direction, driving the second round rod 2 to retract into the interval between the first round rod 1 and the third round rod 3, thereby achieving the retraction effect.

[0053] In other embodiments, the position switch can be a non-contact sensor, such as an infrared sensor or the like.

[0054] In other embodiments, the first round rod 1 can be a solid structure, and the track groove 11 is provided on the surface of the first round rod 1. The track groove 11 has a certain depth but does not penetrate the first round rod 1.

[0055] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electric insulating telescopic rod, characterized in that: It comprises a base, a first round rod, a second round rod and a third round rod; the first round rod, the second round rod and the third round rod are coaxial, the second round rod and the third round rod are both hollow rods, the second round rod is sleeved outside the first round rod, and the third round rod is sleeved outside the second round rod; A spiral track groove is provided on the outer peripheral wall of the first round rod, and the track groove spirally extends from one end of the first round rod toward the other end; a guide pin is provided on the second round rod, and the guide pin is inserted into the track groove; A linear groove is provided on the outer peripheral wall of the second round rod, and the linear groove extends along the axial direction of the second round rod. A limit pin is provided on the third round rod, and the limit pin is inserted into the linear groove. The first round rod is rotatably connected to the base and can rotate relative to the base around its own axis. The third round rod is fixedly connected to the base so that the second round rod can extend along its own axis or enter the gap between the first round rod and the third round rod.

2. The electric insulating telescopic rod according to claim 1, characterized in that: It also includes a driving motor, which is installed on the base. The output shaft of the driving motor is connected to the first round rod, and the driving motor is used to drive the first round rod to rotate.

3. The electric insulating telescopic rod according to claim 2, characterized in that: The base has an inner cavity with a one-way opening, the opening of the inner cavity faces the first round rod, the driving motor is arranged in the inner cavity, and the third round rod is fixed on the end of the base.

4. The electric insulating telescopic rod according to claim 1, characterized in that: The base is provided with an anti-skid convex strip, the anti-skid convex strip protrudes from the outer peripheral wall of the base, a plurality of the anti-skid convex strips are provided, and the plurality of the anti-skid convex strips are arranged around the base.

5. The electric insulating telescopic rod according to claim 1, characterized in that: The first round rod is a hollow rod, the track groove is arranged on the side wall of the first round rod, and the guide pin extends into the first round rod.

6. The electric insulating telescopic rod according to claim 1, characterized in that: A working head is provided at one end of the second round rod away from the base, and the working head is detachably connected to the second round rod.

7. The electric insulating telescopic rod according to claim 2, characterized in that: It also includes a battery and a control board, wherein the battery is arranged in the base, the battery is electrically connected to the control board, and the control board is electrically connected to the drive motor.

8. The electric insulating telescopic rod according to claim 7, characterized in that: The control board is provided with an MCU chip.

9. The electric insulating telescopic rod according to claim 7, characterized in that: It also includes a position switch, which is arranged at one end of the second round rod close to the base. The position switch signal is connected to the control board, and the position switch is used to sense the position of the second round rod.

10. The electric insulating telescopic rod according to claim 2, characterized in that: The driving electric The machine and the first round rod are provided with an adapter, and the adapter is bolted to the end of the first round rod. The adapter is fixed on the output shaft of the drive motor.

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