A power rod screwing tool for a ground rod

Abstract

The application relates to the technical field of electric power maintenance, in particular to an electric rod screwing tool for a grounding rod, which comprises an electric rotating clamp capable of being connected with the grounding rod and driving the grounding rod to rotate; and further comprises a hand-held clamp used for wearing and holding the grounding rod with one hand, which comprises a plurality of holding pieces hingedly connected to form a circular arc structure and forming an open mouth convenient for the grounding rod to enter; and a plurality of rotating wheels are arranged along the arc-shaped side wall of the grounding rod and are rotatably installed on the holding pieces, and the rotating wheels are in contact with the grounding rod and relatively rotate with the grounding rod. The hand-held clamp is arranged to solve the instability of one-hand operation, reduce the shaking of the grounding rod during rotation, replace the direct holding of the human hand by the rotating wheels, eliminate friction, reduce the risk of rod disengagement through holding, reduce the rotating resistance of the rod body by the rotating wheels, facilitate the transmission of the driving force of the electric rotating clamp, and the driving force is fully utilized.

Description

Technical Field

[0001] This application relates to the technical field of power maintenance, and in particular to an electric rod tightening tool for grounding rods. Background Technology

[0002] Currently, installing grounding wires in the power grid is one of the key measures to ensure the safety of power maintenance work. Workers need to lift the grounding operating rod to the high-voltage line and manually rotate the rod to tighten the threaded clamp at the top of the rod, forming a reliable ground. This ensures that workers are free from the risk of electric shock in the maintenance area. After maintenance, the rod also needs to be manually rotated to remove it. This process requires multiple rotations of the rod (usually 10-15 turns) and continuous force while holding the operating rod, which is physically demanding and inefficient for operators. Especially in scenarios such as comprehensive inspection of substation busbars, where multiple people are needed, this further increases the safety risks.

[0003] In the prior art, there are already some electrification improvement solutions, such as: a grounding wire operating rod rotating sleeve tool (publication number CN222661564U): adopts a structure of an outer cylinder nested with a rotating sleeve, and drives the sleeve to rotate by an electric tool, which in turn drives the grounding rod inserted therein to rotate; a pole-mounted grounding wire quick installation and removal tool (publication number CN213584535U): integrates a motor and a clamp structure, and rotates the grounding rod electrically after it is clamped by a toothed rubber strip.

[0004] However, relying solely on the rotary drive mechanism makes the grounding rod prone to wobbling and shifting during operation, making it difficult to align the threaded chuck with the wire. One hand needs to hold the tool body while the other hand assists in fixing the grounding rod. However, in order for the grounding rod to rotate, the hand supporting it needs to be removed. The rotation process lacks a mechanism to suppress radial wobbling of the rod, which weakens the power-saving effect. Furthermore, the reliability of single-handed support is insufficient during high-altitude operations, posing a risk of the rod falling off. Summary of the Invention

[0005] This application provides an electric screw-tightening tool for grounding rods, which can at least partially solve the above-mentioned technical problems.

[0006] This application provides an electric tightening tool for grounding poles, which adopts the following technical solution: An electric tightening tool for grounding poles includes an electric rotary clamp that can be connected to the grounding pole to drive it to rotate; it also includes: Handheld clamp for wearing and holding the grounding rod with one hand, comprising: Multiple gripping components are provided and are hinged to form an arc-shaped structure, creating an opening that facilitates the entry of the grounding rod; Multiple rotating wheels are arranged along the arc-shaped sidewall of the grounding rod, and all are rotatably mounted on the grip, contacting the grounding rod and rotating relative to it.

[0007] By adopting the above technical solution, when rotating the grounding rod, a hand-held clamp is worn with one hand. The grounding rod is placed into the opening and then held by hand, so that the rotating wheel fits against the rod. The gripping force of the hand applies to the grounding rod, facilitating its stability. Then, the electric rotating clamp clamps the end of the rod and drives its rotation. The hand-held clamp solves the problem of instability during single-handed operation, reduces the shaking of the grounding rod during rotation, and the rotating wheel replaces the direct grip of the hand, eliminating friction and reducing the risk of the rod slipping. The rotating wheel also reduces the rotational resistance of the rod, facilitating the transmission of driving force from the electric rotating clamp and ensuring its full utilization.

[0008] Optionally, the hand-held clamp further includes: A protective cover is provided corresponding to the grip and extends to the hinge, and a groove for the rotating wheel to rotate is provided on the side near the rotating wheel.

[0009] By adopting the above technical solution, the protective cover covers the hinge and has a groove for the rotating wheel. The protective cover reduces the gap between adjacent grips, isolates the hinge point, and reduces the probability of pinching. The groove prevents the protective cover from interfering with the rotating wheel, ensuring smooth rotation.

[0010] Optionally, the hand-held clamp further includes: Elastic straps, fixed to both ends of the protective cover or the grip, are used to restrain a person's hand to the clamp.

[0011] By adopting the above technical solution, the elastic strap is fixed to the protective cover / grip, and the strap binds the hand to the clamp, reducing the possibility of the clamp separating from the hand, adapting to narrow spaces, and allowing one hand to complete the dressing in 1 second, thus improving efficiency and stability.

[0012] Optionally, a torsion spring is provided at the hinge of the grip, the torsion spring providing a radial clamping force to bring the grip inward.

[0013] By adopting the above technical solution, a torsion spring is provided at the hinge to provide radial clamping force. The torsion spring causes the grip to automatically cover the grounding rod, realizing adaptive clamping, reducing the force applied by the hand, improving the labor-saving effect, and working with the rotating wheel to reduce the swing amplitude.

[0014] Optionally, the electrically driven rotary clamp includes: The rod clamp is equipped with a slide rail and a fixed seat; Two rod clamps are provided, which slide symmetrically on the slide rail; A double-threaded rod with opposite thread directions at both ends is rotatably connected to the rod clamp seat via the fixed seat, and both ends correspond one-to-one with the other two rod clamps and are threadedly connected. A hand-tightening component is connected to one end of the double-threaded rod and is used to manually drive the rod clamp to open and close. A power unit, connected to the rod clamp seat, is used to drive the rod clamp seat to rotate.

[0015] By adopting the above technical solution, when rotating the grounding rod, the hand-held clamp is first connected to the grounding rod, and then the grounding rod is placed between the two rod clamps. Then, by rotating the hand-tightening device, the double-threaded rod is rotated, which drives the two rod clamps to move closer together. The rod clamps then bind and fix the grounding rod. Then, the power component drives the rod clamp seat to rotate, and the rod clamp seat drives the rod clamps and the grounding rod to rotate. By using a double-threaded rod, clamping can be achieved quickly, and the screw has high stability, which can reduce the possibility of rod detachment and achieve stable transmission of rotational force. In addition, the rod clamps and the hand-held clamp provide double restraint for the grounding rod, which improves the rotational stability of the grounding rod, reduces the possibility of rod detachment, and reduces the force applied by the operator.

[0016] Optionally, a rotating part is provided at the other end of the double-threaded rod.

[0017] By adopting the above technical solution, the rotating part can be rotated in other ways when the hand-tightening part fails.

[0018] Optionally, the rod clamp is provided with a pivot hole, and the output shaft of the power assembly is fixed in the pivot hole.

[0019] By adopting the above technical solution and the above settings, it is convenient to replace the damaged power components.

[0020] Optionally, the electrically operated rotary clamp is detachably connected to the hand-held clamp.

[0021] By adopting the above technical solution, the hand-held clamp and the electric rotary clamp can be detachably connected, which makes it easy to choose whether the hand-held clamp is needed according to the requirements. For example, when grounding is not being inspected at low altitude, the hand-held clamp can be left unused. The detachable connection also makes it easy to store the hand-held clamp and reduces the possibility of loss.

[0022] Optionally, the electric rotary clamp is provided with a hand-held clamp fixing seat, and the hand-held clamp fixing seat has a slot, and the hinge shaft of the gripping member at the open end is engaged with the slot.

[0023] By adopting the above technical solution, the snap-fit ​​method of the bayonet and hinge shaft is simple and facilitates quick connection and separation.

[0024] Optionally, the surface of the rotating wheel is covered with an elastic material.

[0025] By adopting the above technical solution, the elastic material facilitates insulation and increases friction, thus achieving an anti-slip effect.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The hand-held clamp solves the problem of unstable one-handed operation and reduces the shaking of the grounding rod during rotation. The rotating wheel replaces the human hand for direct gripping, eliminating friction and reducing the risk of the rod slipping out. The rotating wheel reduces the rotational resistance of the rod, facilitating the transmission of the driving force of the electric rotating clamp and making full use of it. 2. A torsion spring is provided at the hinge to provide radial clamping force. The torsion spring causes the grip to automatically cover the grounding rod, achieving adaptive clamping and reducing the force applied by the hand, thus improving the labor-saving effect. It also works with the rotating wheel to reduce the swing amplitude. 3. The hand-held clamp and the electric rotary clamp are detachably connected, making it easy to choose whether or not the hand-held clamp is needed according to the requirements. For example, when grounding is being inspected at low altitudes, the hand-held clamp can be left unused. The detachable connection also makes it easy to store the hand-held clamp and reduces the possibility of loss. Attached Figure Description

[0027] Figure 1 This is an overall structural diagram showing the separation of the electric rotary clamp and the hand-held clamp in the embodiments of this application; Figure 2 This is an overall structural diagram of the connection between the electric rotary clamp and the hand-held clamp in the embodiments of this application; Figure 3 This is an overall structural diagram of the hand-held clamp in the embodiments of this application; Figure 4 This is an exploded view of the electric rotary clamp in the embodiments of this application; Figure 5 This is an exploded view of the fixing cover and fixing base in the embodiments of this application; Figure 6 This is a bottom view of the rod clamp in an embodiment of this application; Figure 7 This is a diagram illustrating the power assembly in an embodiment of this application.

[0028] Reference numerals: 100, Electric rotary clamp; 110, Rod clamp seat; 111, Rotary shaft hole; 120, Slide rail; 130, Fixed seat; 131, Semicircular groove; 140, Rod clamping component; 150, Double threaded rod; 151, Rotating part; 152, Rotating part; 160, Hand-tightening component; 170, Power assembly; 171, Machine housing; 172, Integrated motor and reducer assembly; 173, Power module; 174, Motor forward and reverse rotation control. 175. Motor switch control element; 176. Switch pressing element; 177. Motor main control board; 178. Charging connector; 180. Fixing cover; 200. Hand-held clamp; 210. Grip; 211. Opening; 212. Snap-fit ​​groove; 220. Rotating wheel; 230. Protective cover; 231. Groove; 240. Elastic strap; 250. Torsion spring; 260. Bushing; 300. Connecting seat; 310. Bayonet. Detailed Implementation

[0029] The following combination Figures 1 to 7 This application will be described in further detail.

[0030] This embodiment discloses an electric screwdriver for grounding poles.

[0031] refer to Figure 1 and Figure 2 The electric rod tightening tool consists of a hand-held clamp 200 and an electric rotary clamp 100. The hand-held clamp 200 and the electric rotary clamp 100 are detachably connected. During operation, the hand-held clamp 200 and the electric rotary clamp 100 are separated. Then, the hand-held clamp 200 is held with one hand and connected to the grounding rod. The electric rotary clamp 100 is then connected to the grounding rod, and the electric rotary clamp 100 drives the grounding rod to rotate, while the hand-held clamp 200 assists in rotating the grounding rod.

[0032] Reference Figure 3The hand-held clamp 200 includes a gripper 210, a rotating wheel 220, and a torsion spring 250. Multiple grippers 210 are provided; in this embodiment, five are preferred. The five grippers 210 are rotatably connected, which can be achieved through flexible components or hinges, forming an arc-shaped structure with a single-sided opening 211. The flexible connection can be made of flexible, bendable rubber, elastic cloth, or bendable, elastic metal. This embodiment uses a hinged connection. The grippers 210 can be made of plastic or metal; in this embodiment, metal is preferred. The grippers 210 have an arc-shaped, sheet-like structure. The hinge shaft is made of an extra-long screw with a nut threaded to one end. Three grooves 231 are provided at the hinge of adjacent gripping parts 210. The three grooves 231 are provided along the length of the gripping parts 210. The upper and lower grooves 231 are used to hinge adjacent gripping parts 210 and to install the rotating wheel 220, ensuring that the grounding rod can rotate smoothly in the hand-held clamp 200. The rotating wheel 220 is rotatably connected to the hinge shaft. The torsion spring 250 is installed in the middle groove 231. The elastic force generated causes the two adjacent gripping parts 210 to move inward, making the hand-held clamp 200 easy to operate.

[0033] Furthermore, the rotating wheel 220 is a rubber-coated bearing wheel with an outer elastic insulating material.

[0034] Furthermore, in order to reduce the contact between the grip 210 and the grounding rod, a hinge shaft is also provided on the side of the grip 210 near the opening 211 at the opening 211, and a rotating wheel 220 is also installed on the hinge shaft.

[0035] Furthermore, to reduce the risk of hand injury from the hinge of the grip 210 during gripping, each grip 210 is equipped with a protective cover 230. The protective cover 230 is connected to the grip 210 by an internal hex screw to protect the grip 210 and prevent hand injury. The upper and lower ends of the protective cover 230 are designed with binding interfaces to securely sew elastic straps 240. The elastic straps 240 are made of elastic fabric, elastic rope, or elastic band, allowing the hand to better fit the clamp, facilitating flexible operation of the clamp, and reducing discomfort when wearing it.

[0036] Reference Figure 4 , Figure 5 and Figure 6The electric rotary clamp 100 can be constructed using a sleeve and a drive motor, a clamp and a drive motor, or a clamping clamp and a rotary power source. For the sleeve and drive motor method, a cylindrical sleeve with a rubber layer on its inner wall can be selected, and it connects to the grounding rod via an insertion method. For the clamp and drive motor method, an adjustable clamp can be used for detachable connection to the grounding rod. This embodiment uses a clamping clamp and a rotary power source, including a rod clamp 140, a rod clamp seat 110, a double-threaded rod 150, and a hand-tightening component 16. 0 and power assembly 170, rod clamp 110 is detachably connected to power assembly 170, rod clamp 110 has a slide rail 120 formed on it, slide rail 120 is a sliding channel with a sliding groove, and a fixed seat 130 is also integrally formed on rod clamp 110. The side of fixed seat 130 away from power assembly 170 has a semi-circular groove 131 for placing double threaded rod 150. Fixed cover 180 is detachably connected to fixed seat 130 by bolts. Fixed cover 180 also has a semi-circular groove 131. Fixed seat 130 and fixed cover 180 are connected to each other. The 0-type fitting fixes the double-threaded rod 150, which rotates within a rotating hole formed by two semi-circular grooves 131. A rotating part 152 is formed within the rotating hole of the double-threaded rod 150, with an I-shaped cross-section. The rotating part 152 is rotatably connected within the rotating hole. Both rod clamps 140 are designed with configurations corresponding to the slide rail 120 in the middle of the rod clamp seat 110, ensuring stable translation within the track of the rod clamp seat 110. A threaded hole is designed in the middle, through which the double-threaded rod 150 passes and is threadedly connected. The two ends of the double-threaded rod 150... The threads are opened in opposite directions; the end of the rod clamp 140 away from the rod clamp seat 110 is an arc-shaped piece that matches the arc surface of the grounding rod, and the end of the rod clamp 140 near the rod clamp seat 110 has a support plate, which is used to support the end of the grounding rod; the hand-tightening part 160 is connected to one end of the double-threaded rod 150 by an internal hex screw. When the grounding rod handle is placed into the clamp and the hand-tightening part 160 is turned by hand, the two rod clamps 140 will slide and open within the slide rail 120 of the rod clamp seat 110, thereby realizing the function of clamping or releasing the grounding rod handle.

[0037] Furthermore, the other end of the double threaded rod 150 forms a rotating part 151. The rotating part 151 can be a polygonal prism that is easy to rotate or have a cross hole, a slotted hole or an internal hexagonal hole. In this embodiment, an internal hexagonal hole is preferred. When the hand-tightening part 160 fails, the clamp opening and closing function can be completed by a hexagonal wrench.

[0038] In other embodiments, to facilitate maintaining clamping force or insulation, the contact surface between the rod clamp 140 and the grounding rod may be provided with wear-resistant rubber or an insulating layer.

[0039] The rod clamp seat 110 has a threaded hole on its side. The side wall of the rod clamp seat 110 abuts against the connecting seat 300. The connecting seat 300 is connected to the rod clamp seat 110 by bolts and threaded holes. Two connecting seats 300 are provided. A slot 310 is opened on the side wall of the connecting seat 300 away from the rod clamp seat 110, making the cross-section of the connecting seat 300 [shaped]. A spring ball head screw is installed on the side wall of the slot 310, with the ball head located inside the slot 310. The two grips 210 of the open 211 are provided with snap-fit ​​grooves 212. The snap-fit ​​grooves 212 are located in the middle of the grips 210, and the hinge shaft is exposed. The exposed part of the hinge shaft is fitted with a bushing 260. The bushing 260 can be snapped into the bayonet 310. The connecting seat 300 is located in the snap-fit ​​groove 212. When the hand-held clamp 200 is stored, the bushing 260 is snapped into the bayonet 310, and the ball head prevents the bushing 260 from being pulled out.

[0040] The rod holder 110 has a protrusion at one end near the power assembly 170, and a shaft hole 111 is designed on the protrusion for mounting the output shaft of the power assembly 170.

[0041] Reference Figure 7 The power assembly 170 can be a hydraulic motor, pneumatic motor, electric motor, or other equipment capable of rotational motion. In this embodiment, it is preferably an electric motor. The electric motor includes a housing 171, an integrated motor reducer assembly 172, a power module 173, a motor forward / reverse control element 174, a motor switch control element 175, a switch button 176, a motor main control board 177, and a charging connector 178. The housing 171 is divided into two parts, front and back, with anti-slip textures on the surface for easy gripping. The housing is connected by four hexagonal screws to form a cylindrical housing. The housing 171 has an electronic component mounting slot for installing the motor main control board 177, the motor forward / reverse control element 174, and the motor switch control element 175, which control the drive motor. The motor main control board 177, the motor forward / reverse control element 174, and the motor switch control element 175 are connected to the drive motor wires.

[0042] One side of the casing 171 has a long hole for installing a switch button 176, which contains a spring to provide feedback. The other side of the casing has a forward / reverse adjustment hole for installing the push head of the forward / reverse control element. The power module 173 is designed to be placed at the rear of the casing. The large capacity power supply ensures battery life and balances the weight of the casing while meeting size requirements, thus improving operating comfort. The rear of the casing 171 has a square hole for installing the charging connector 178 of the power module 173.

[0043] The integrated motor reducer assembly 172 is fixed to the front end of the housing with round-headed hexagonal screws. The square design of the output shaft matches the bottom rotating shaft hole 111 of the rod clamp seat 110, and an annular groove 231 is designed for installing the shaft clamp, so that the output shaft is firmly connected to the rod clamp seat 110, ensuring that the electric rotating body can rotate synchronously with the rod clamp assembly under load.

[0044] Place the rubber handle at the end of the grounding rod into the upper cylindrical clamp of the electric rotating clamp 100, and clamp it by rotating the side hand-tightening handle. Hold the electric rotating tool below with your right hand to rotate the grounding rod, and put your left hand into the strap of the hand-held clamp 200 and detach it from the connecting seat 300. Hold the grounding rod to ensure that the rod rotates smoothly. This allows for easy and quick connection and disconnection of the grounding wire, saving time and effort. It is highly reliable and practical.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric tightening tool for grounding poles, comprising an electric rotating clamp (100) capable of connecting to the grounding pole and driving the grounding pole to rotate; characterized in that: Also includes: A hand-held clamp (200) for wearing and holding a grounding rod with one hand includes: Multiple grippers (210) are provided, and the multiple grippers (210) are rotatably connected to form an arc-shaped structure, forming an opening (211) that facilitates the entry of the grounding rod. Multiple rotating wheels (220) are provided along the arc-shaped sidewall of the grounding rod, and are rotatably mounted on the grip (210), contacting the grounding rod and rotating relative to it.

2. The electric screw-tightening tool for grounding poles according to claim 1, characterized in that: The plurality of gripping elements (210) are rotatably connected by hinges, and the hand-held clamp (200) further includes: The protective cover (230) is provided corresponding to the grip (210) and extends to the hinge, and a groove (231) for the rotating wheel (220) to rotate is provided on the side near the rotating wheel (220).

3. The electric screw-tightening tool for grounding poles according to claim 2, characterized in that: The hand-held clamp (200) also includes: Elastic straps (240) are fixed to both ends of the protective cover (230) or the grip (210) for binding a person's hand to the clamp.

4. The electric screw-tightening tool for grounding poles according to claim 3, characterized in that: A torsion spring (250) is provided at the hinge of the grip (210), the torsion spring (250) providing a radial clamping force to bring the grip (210) inward.

5. The electric rod tightening tool for grounding rods according to any one of claims 1-4, characterized in that: The electrically operated rotary clamp (100) includes: The rod clamp (110) is provided with a slide rail (120) and a fixed seat (130); Two rod clamps (140) are provided, which slide symmetrically on the slide rail (120); The double-threaded rod (150) has opposite threads at both ends and is rotatably connected to the rod clamp seat (110) via the fixed seat (130). Both ends correspond one-to-one with the other two rod clamps (140) and are threadedly connected. A hand-tightening component (160) is connected to one end of the double-threaded rod (150) and is used to manually drive the rod clamp (140) to open and close. The power assembly (170) is connected to the rod clamp (110) and is used to drive the rod clamp (110) to rotate.

6. The electric screw-tightening tool for grounding poles according to claim 5, characterized in that: The other end of the double-threaded rod (150) is provided with a rotating part (151).

7. The electric screwdriver for grounding poles according to claim 5, characterized in that: The rod holder (110) has a rotating shaft hole (111), and the output shaft of the power assembly (170) is fixed in the rotating shaft hole (111).

8. The electric screw-tightening tool for grounding poles according to claim 5, characterized in that: The electric rotary clamp (100) is detachably connected to the hand-held clamp (200).

9. The electric screw-tightening tool for grounding poles according to claim 8, characterized in that: The electric rotary clamp (100) is provided with a hand-held clamp (200) fixing seat (130), and a slot (310) is provided on the hand-held clamp (200) fixing seat (130). The hinge shaft of the grip (210) at the opening (211) is engaged with the slot (310).

10. The electric screw-tightening tool for grounding poles according to claim 1, characterized in that: The surface of the rotating wheel (220) is covered with an elastic material.

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