Insulated extension arm

Abstract

This invention discloses an insulated extension arm, relating to the technical field of high-voltage transmission line maintenance equipment. The insulated extension arm includes: an insulated fixing mechanism; a drive mechanism mounted on the insulated fixing mechanism for generating torque; a transmission mechanism mounted on the insulated fixing mechanism and connected to the drive mechanism; and a mounting mechanism mounted on the insulated fixing mechanism. The mounting mechanism includes a linkage unit and a snap-fit ​​unit for mounting the high-voltage electrical work device. When the high-voltage electrical work device is mounted on the mounting mechanism via the snap-fit ​​unit, the torque generated by the drive mechanism can be transmitted to the high-voltage electrical work device through the transmission mechanism and the linkage unit. The insulated extension arm of this invention can transmit power to the end-effector and has good insulation performance, protecting the safety of workers.

Description

Technical Field

[0001] This invention relates to the field of high-voltage transmission line maintenance equipment technology, and in particular to an insulating extension arm. Background Technology

[0002] Currently, the main body, robotic arm, and front-end operating tools of high-voltage live-line working robots are all made of metal. During live-line work, the front-end operating tool comes into direct contact with the high-voltage live conductor. To ensure the safety of on-site operators and the robot itself, high-voltage insulation between the robotic arm and the live conductor is crucial. The robot body must control the front-end operating tool to perform the work task, while simultaneously achieving high-voltage insulation between the front-end operating tool and the high-potential live conductor. This enables live-line work on high-voltage lines, isolates the operator from operational hazards, and reduces the operator's workload. Summary of the Invention

[0003] The purpose of this invention is to provide an insulated extension arm that can transmit power to the end-effector and has good insulation properties, protecting workers and ensuring safe use.

[0004] The above-mentioned objectives of the present invention can be achieved by the following technical solutions:

[0005] This invention provides an insulating extension arm for installing and driving high-voltage electrical work equipment, the insulating extension arm comprising:

[0006] Insulation fixing mechanism;

[0007] A drive mechanism is provided on the insulating fixing mechanism, and the drive mechanism is used to generate torque;

[0008] A transmission mechanism is provided on the insulating fixing mechanism, and the transmission mechanism is connected to the driving mechanism in a transmission manner;

[0009] The mounting mechanism is provided on the insulation fixing mechanism;

[0010] The installation mechanism includes a linkage unit and a snap-fit ​​unit for installing the high-voltage electrical work device. When the high-voltage electrical work device is installed on the installation mechanism through the snap-fit ​​unit, the torque generated by the drive mechanism can be transmitted to the high-voltage electrical work device through the transmission mechanism and the linkage unit.

[0011] In a preferred embodiment, the mounting mechanism further includes a fixing unit, the fixing unit comprising:

[0012] The connecting part has a through connecting hole formed in the radial center of the connecting part. The connecting part is sleeved on the insulating fixing mechanism through at least part of the connecting hole. The linkage unit passes through the connecting hole and is connected to the transmission mechanism in a driving manner.

[0013] The mounting portion extends radially outward from the connecting portion, and the snap-fit ​​unit is disposed on the mounting portion;

[0014] The snap-fit ​​unit includes a plurality of first snap-fit ​​members, which are evenly distributed along the circumference of the mounting portion. Each first snap-fit ​​member includes:

[0015] Card takeover;

[0016] A snap-fit ​​post is provided, and the snap-fit ​​disc is connected to the mounting part via the snap-fit ​​post. The outer diameter of the snap-fit ​​disc is larger than the outer diameter of the snap-fit ​​post.

[0017] In a preferred embodiment, the high-voltage electrical work device has at least a first position and a second position relative to the mounting portion;

[0018] The high-voltage electrical work device has a plurality of first card interfaces, the same number as the first card connector. Each first card interface includes an inlet portion and a fitting portion extending from the inlet portion. The inner diameter of the inlet portion is larger than the outer diameter of the card connector, and the width of the fitting portion is smaller than the outer diameter of the card connector and larger than the outer diameter of the card connector post.

[0019] When the high-voltage electrical work device is in the first position, the snap-fit ​​plate can extend into the high-voltage electrical work device through the inlet. When the high-voltage electrical work device is in the second position, the snap-fit ​​post can pass through the fitting part, and the snap-fit ​​plate can be embedded in the high-voltage electrical work device through the fitting part.

[0020] In a preferred embodiment, the snap-fit ​​unit further includes a plurality of second snap-fit ​​members, the same number as the first snap-fit ​​members, the plurality of second snap-fit ​​members being evenly distributed along the circumference of the mounting portion, with one second snap-fit ​​member disposed between every two adjacent first snap-fit ​​members, and the second snap-fit ​​members comprising:

[0021] Stop pin;

[0022] The elastic element connects the stop pin to the mounting part, and the distance between the end of the stop pin and the mounting part is greater than the distance between the end of the snap-fit ​​plate and the mounting part.

[0023] In a preferred embodiment, the high-voltage electrical working device has a plurality of second card interfaces, the same number as the second card connector, wherein the inner diameter of the second card interface is larger than the outer diameter of the stop pin;

[0024] When the high-voltage electrical work device is in the first position, the elastic element is compressed and the stop pin abuts against the outer wall of the high-voltage electrical work device. When the high-voltage electrical work device is in the second position, the stop pin can be pushed by the elastic element and extend into the high-voltage electrical work device through the second locking interface.

[0025] In a preferred embodiment, the linkage unit includes a coupling, which is rotatably disposed within the connecting hole;

[0026] The high-voltage electrical work device has a rotating component that can be driven and connected to the coupling. When the high-voltage electrical work device is in the first position or the second position, the coupling extends into the high-voltage electrical work device and is driven and connected to the rotating component.

[0027] In a preferred embodiment, the insulation fixing mechanism includes:

[0028] The support frame, on which the drive mechanism is fixedly mounted;

[0029] An insulating sleeve is mounted on the support frame.

[0030] In a preferred embodiment, the drive mechanism includes:

[0031] An electric motor, which is fixedly connected to the support frame;

[0032] A speed reducer is driven by the electric motor, and the speed reducer is fixedly connected to the support frame;

[0033] A main shaft that is drivenly connected to the reducer extends into the insulating sleeve;

[0034] A communication control module is connected to the motor via a signal. The communication control module is used to receive control signals and control the movement of the motor.

[0035] In a preferred embodiment, the transmission mechanism includes:

[0036] A rotatable drive shaft is disposed inside the insulating sleeve. One end of the drive shaft is connected to the main shaft extending into the insulating sleeve, and the other end of the drive shaft is connected to the coupling to transmit torque to the rotating part of the high-voltage electrical working device.

[0037] In a preferred embodiment, the insulation resistance value of the insulating sleeve and the drive shaft is greater than 3.5MΩ.

[0038] The features and advantages of this invention are:

[0039] The high-voltage electrical work device can be quickly installed and fixed using the end-mounted installation mechanism. The first locking plate of the first locking member extends into the high-voltage electrical work device through the inlet of the first locking interface. At this time, the stop pin of the second locking member abuts against the outer wall of the high-voltage electrical work device, and the elastic element is compressed. After rotating the high-voltage electrical work device from the first position to the second position, the locking pin of the first locking member extends into the fitting part of the first locking interface. Because the width of the fitting part is smaller than the outer diameter of the locking plate, the locking plate is restricted by the edge of the fitting part. Simultaneously, the second locking interface rotates to the stop pin of the second locking member, causing the stop pin to spring into the second locking interface under the action of the elastic element, thereby locking the high-voltage electrical work device and preventing further rotation. This achieves rapid installation and locking between the insulating extension arm and the high-voltage electrical work device.

[0040] Once the high-voltage electrical working device is installed on the insulated extension arm, the rotating parts of the device engage with the linkage unit of the installation mechanism. This allows the torque generated by the drive mechanism to be transmitted to the high-voltage electrical working device via the transmission mechanism and linkage unit, driving the working components, such as grippers and wire cutters, to complete the corresponding work. Both the drive shaft of the transmission mechanism and the insulating sleeve of the insulating fixing mechanism have excellent insulation properties, effectively protecting the safety of the operator. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 The diagram shown is a schematic representation of the overall structure of the insulating extension arm of the present invention.

[0043] Figure 2 The diagram shown is a front view of the mounting mechanism for the insulating extension arm of the present invention.

[0044] Figure 3 The diagram shown is a bottom view of the mounting mechanism of the insulating extension arm of the present invention.

[0045] Figure 4 The diagram shows the connection points of a high-voltage electrical work device. Detailed Implementation

[0046] 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 embodiments of the present invention, and not all embodiments. 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. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "installed," "connected," and "connected" should be interpreted broadly. For example, it can be a mechanical connection or an electrical connection, or it can be a connection within two elements. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0047] Please see Figures 1 to 4 As shown, this embodiment of the invention provides an insulated extension arm for installing and driving a high-voltage electrical work device. The insulated extension arm includes: an insulated fixing mechanism 1; a driving mechanism 2 disposed on the insulated fixing mechanism 1, the driving mechanism 2 being used to generate torque; a transmission mechanism 3 disposed on the insulated fixing mechanism 1, the transmission mechanism 3 being connected to the driving mechanism 2 in a transmission manner; and an installation mechanism 4 disposed on the insulated fixing mechanism 1. The installation mechanism 4 includes a linkage unit 41 and a snap-fit ​​unit 42 for installing the high-voltage electrical work device. When the high-voltage electrical work device A is installed on the installation mechanism 4 through the snap-fit ​​unit 42, the torque generated by the driving mechanism 2 can be transmitted to the high-voltage electrical work device A through the transmission mechanism 3 and the linkage unit 41.

[0048] To further illustrate the specific structure of the insulating extension arm in the embodiments of the present invention, its connection relationships and size limitations are further described below, wherein:

[0049] The mounting mechanism 4 also includes a fixing unit, which includes: a connecting part 43, a through connecting hole formed in the radial center of the connecting part 43, the connecting part 43 being sleeved on the insulating fixing mechanism 1 through at least part of the connecting hole, a linkage unit 41 passing through the connecting hole and being connected to the transmission mechanism 3; a mounting part 44 extending radially outward from the connecting part 43, and a snap-fit ​​unit 42 disposed on the mounting part 44; wherein, the snap-fit ​​unit 42 includes a plurality of first snap-fit ​​members 421, the plurality of first snap-fit ​​members 421 being evenly distributed along the circumference of the mounting part 44, and the first snap-fit ​​member 421 including: a snap-fit ​​plate; a snap-fit ​​post, the snap-fit ​​plate being connected to the mounting part 44 through the snap-fit ​​post, and the outer diameter of the snap-fit ​​plate being larger than the outer diameter of the snap-fit ​​post.

[0050] The high-voltage electrical work device A has at least a first position and a second position relative to the mounting part 44; the high-voltage electrical work device A has a plurality of first locking interfaces 51, the same number as the first locking member 421, each first locking interface 51 including an inlet and a fitting portion extending from the inlet, the inner diameter of the inlet being larger than the outer diameter of the locking plate, and the width of the fitting portion being smaller than the outer diameter of the locking plate but larger than the outer diameter of the locking post; wherein, when the high-voltage electrical work device A is in the first position, the locking plate can extend into the high-voltage electrical work device A through the inlet, and when the high-voltage electrical work device A is in the second position, the locking post can pass through the fitting portion, and the locking plate can be fitted into the high-voltage electrical work device A through the fitting portion.

[0051] The snap-fit ​​unit 42 also includes a plurality of second snap-fit ​​pieces 422, which are the same number as the first snap-fit ​​pieces 421. The plurality of second snap-fit ​​pieces 422 are evenly distributed along the circumference of the mounting portion 44. A second snap-fit ​​piece 422 is provided between every two adjacent first snap-fit ​​pieces 421. The second snap-fit ​​piece 422 includes: a stop pin; and an elastic member 423. The stop pin is connected to the mounting portion 44 through the elastic member 423. The distance between the end of the stop pin and the mounting portion 44 is greater than the distance between the end of the snap-fit ​​piece and the mounting portion 44.

[0052] The high-voltage electrical work device A has a plurality of second locking interfaces 52, the same number as the second locking member 422. The inner diameter of the second locking interface 52 is larger than the outer diameter of the stop pin. When the high-voltage electrical work device A is in the first position, the elastic member 423 is compressed and the stop pin abuts against the outer wall of the high-voltage electrical work device A. When the high-voltage electrical work device A is in the second position, the stop pin can be pushed by the elastic member 423 and extend into the high-voltage electrical work device A through the second locking interface 52.

[0053] The linkage unit 41 includes a coupling 411, which is rotatably disposed in a connecting hole; the high-voltage electric work device A has a rotating part 6 that can be drivenly connected to the coupling 411. When the high-voltage electric work device A is in the first position or the second position, the coupling 411 extends into the high-voltage electric work device A and is drivenly connected to the rotating part 6.

[0054] The insulation fixing mechanism 1 includes: a support frame, a drive mechanism 2 fixedly mounted on the support frame; and an insulation sleeve 11 mounted on the support frame.

[0055] The drive mechanism 2 includes: an electric motor, which is fixedly connected to the support frame; a reducer that is driven by the electric motor and is fixedly connected to the support frame; a main shaft 21 that is driven by the reducer and extends into the insulating sleeve 11; and a communication control module that is signal-connected to the electric motor, which is used to receive control signals and control the movement of the electric motor.

[0056] The transmission mechanism 3 includes a drive shaft 31 that is rotatably disposed inside the insulating sleeve 11. One end of the drive shaft 31 is connected to the main shaft 21 that extends into the insulating sleeve 11, and the other end of the drive shaft 31 is connected to the coupling 411 to transmit torque to the rotating part 6 of the high-voltage electrical work device A.

[0057] The insulation resistance of the insulating sleeve 11 and the drive shaft 31 is greater than 3.5MΩ.

[0058] Based on the above structural description, the insulating extension arm of the present invention has the following beneficial effects:

[0059] The high-voltage electrical work device A can be quickly installed and fixed through the end installation mechanism 4. The first locking plate of the first locking member 421 can first extend into the high-voltage electrical work device A through the inlet of the first locking interface 51. At this time, the stop pin of the second locking member 422 abuts against the outer wall of the high-voltage electrical work device A, and the elastic member 423 is compressed. After the high-voltage electrical work device A is rotated from the first position to the second position, the locking post of the first locking member 421 will extend into the fitting part of the first locking interface 51. Since the width of the fitting part is smaller than the outer diameter of the locking plate, the locking plate is restricted by the edge of the fitting part. At the same time, the second locking interface 52 rotates to the stop pin of the second locking member 422, so that the stop pin is springed into the second locking interface 52 under the action of the elastic member 423, thereby locking the high-voltage electrical work device A and preventing it from rotating, realizing the quick installation and locking between the insulating extension arm and the high-voltage electrical work device A.

[0060] After the high-voltage electrical working device A is installed on the insulated extension arm, the rotating component 6 of the high-voltage electrical working device A engages with the linkage unit 41 of the installation mechanism 4. This allows the torque generated by the drive mechanism 2 to be transmitted to the high-voltage electrical working device A through the transmission mechanism 3 and the linkage unit 41, driving the working components on the high-voltage electrical working device A, such as grippers and wire cutters, to complete the corresponding work. Both the drive shaft 31 of the transmission mechanism 3 and the insulating sleeve 11 of the insulating fixing mechanism 1 have excellent insulation properties, effectively protecting the safety of the operator.

[0061] The above are merely embodiments of the present invention. Those skilled in the art can make various modifications or variations to the embodiments of the present invention based on the content disclosed in the application documents without departing from the spirit and scope of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Claims

1. An insulated extension arm for mounting and driving high-voltage electrical work equipment, characterized in that, The insulating extension arm includes: Insulation fixing mechanism; A drive mechanism is provided on the insulating fixing mechanism, and the drive mechanism is used to generate torque; A transmission mechanism is provided on the insulating fixing mechanism, and the transmission mechanism is connected to the driving mechanism in a transmission manner; The mounting mechanism is provided on the insulation fixing mechanism; The installation mechanism includes a linkage unit and a snap-fit ​​unit for installing the high-voltage electrical work device. When the high-voltage electrical work device is installed on the installation mechanism through the snap-fit ​​unit, the torque generated by the drive mechanism can be transmitted to the high-voltage electrical work device through the transmission mechanism and the linkage unit. The mounting mechanism further includes a fixing unit, which includes: a connecting part, wherein a through connecting hole is formed in the radial center of the connecting part, the connecting part is sleeved on the insulating fixing mechanism through at least part of the connecting hole, the linkage unit passes through the connecting hole and is connected to the transmission mechanism in a driving manner; and a mounting part extending radially outward from the connecting part, wherein the snap-fit ​​unit is disposed on the mounting part. The snap-fit ​​unit includes a plurality of first snap-fit ​​components, which are evenly distributed around the circumference of the mounting portion. Each first snap-fit ​​component includes a snap-fit ​​disc and a snap-fit ​​post. The snap-fit ​​disc is connected to the mounting portion through the snap-fit ​​post, and the outer diameter of the snap-fit ​​disc is larger than the outer diameter of the snap-fit ​​post. The high-voltage electrical work device has at least a first position and a second position relative to the mounting portion; the high-voltage electrical work device has a plurality of first locking interfaces, the same number as the first locking member, each first locking interface including an inlet portion and a fitting portion extending from the inlet portion, the inner diameter of the inlet portion being larger than the outer diameter of the locking plate, and the width of the fitting portion being smaller than the outer diameter of the locking plate but larger than the outer diameter of the locking post; wherein, when the high-voltage electrical work device is in the first position, the locking plate can extend into the high-voltage electrical work device through the inlet portion, and when the high-voltage electrical work device is in the second position, the locking post can pass through the fitting portion, and the locking plate can be fitted into the high-voltage electrical work device through the fitting portion; The snap-fit ​​unit further includes a plurality of second snap-fit ​​components in the same number as the first snap-fit ​​components. The plurality of second snap-fit ​​components are evenly distributed along the circumference of the mounting portion. One second snap-fit ​​component is provided between every two adjacent first snap-fit ​​components. The second snap-fit ​​component includes: a stop pin; an elastic element. The stop pin is connected to the mounting portion through the elastic element. The distance between the end of the stop pin and the mounting portion is greater than the distance between the end of the snap-fit ​​plate and the mounting portion. The high-voltage electrical work device has a plurality of second locking interfaces, the same number as the second locking member, wherein the inner diameter of the second locking interface is larger than the outer diameter of the stop pin; wherein, when the high-voltage electrical work device is in the first position, the elastic member is compressed and the stop pin abuts against the outer wall of the high-voltage electrical work device; when the high-voltage electrical work device is in the second position, the stop pin can be pushed by the elastic member and extend into the high-voltage electrical work device through the second locking interface; The linkage unit includes a coupling, which is rotatably disposed within the connecting hole; the high-voltage electric working device has a rotating component that can be driven and connected with the coupling, and when the high-voltage electric working device is in the first position or the second position, the coupling extends into the high-voltage electric working device and is driven and connected with the rotating component.

2. The insulating extension arm as described in claim 1, characterized in that, The insulation fixing mechanism includes: The support frame, on which the drive mechanism is fixedly mounted; An insulating sleeve is mounted on the support frame.

3. The insulating extension arm as described in claim 2, characterized in that, The drive mechanism includes: An electric motor, which is fixedly connected to the support frame; A speed reducer is driven by the electric motor, and the speed reducer is fixedly connected to the support frame; A main shaft that is drivenly connected to the reducer extends into the insulating sleeve; A communication control module is connected to the motor via a signal. The communication control module is used to receive control signals and control the movement of the motor.

4. The insulating extension arm as described in claim 3, characterized in that, The transmission mechanism includes: A rotatable drive shaft is disposed inside the insulating sleeve. One end of the drive shaft is connected to the main shaft extending into the insulating sleeve, and the other end of the drive shaft is connected to the coupling to transmit torque to the rotating part of the high-voltage electrical working device.

5. The insulating extension arm as described in claim 4, characterized in that, The insulation resistance of the insulating sleeve and the drive shaft is greater than 3.5 MΩ.

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