High-voltage electrical equipment maintenance operating rod

Abstract

This invention discloses a high-voltage electrical equipment maintenance operating lever, including a top rod, a middle rod, a hinge, a bottom rod, a support frame, a connecting plate, and a positioning assembly. The middle rod is located at one end of the top rod along its extension direction and is rotatably connected to the top rod via a hinge. The bottom rod is located at the end of the middle rod away from the top rod along its extension direction and is rotatably connected to the middle rod via a hinge. The hinge provides rotational freedom, allowing the top and bottom rods to fold around the middle rod. The support frame is located at both ends of the middle rod. The connecting plate is located at the end of the top rod near the middle rod, and the bottom rod is located at the end near the middle rod. The positioning assembly is located between the connecting plate and the support frame, and is used to unlock or lock the operating lever in its folded and unfolded states. This invention solves the problems of inconvenience in carrying and difficult transportation of traditional integrated long rods.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical equipment technology, and specifically to a high-voltage electrical equipment maintenance control lever. Background Technology

[0002] In related technologies, high-voltage electrical equipment maintenance devices are a general term for specialized equipment, instruments, and tools used to detect, diagnose, test, and maintain the performance and safety status of high-voltage electrical equipment (10kV and above, such as transformers, circuit breakers, GIS, cables, switchgear, etc.). The core purpose is to ensure that the equipment's insulation, mechanical, and electrical performance are up to standard, ensuring maintenance safety and reliable operation of the power grid. These devices include high-voltage detectors, power frequency withstand voltage testing devices, partial discharge detectors, circuit breaker mechanical characteristic testers, transformer comprehensive testers, and insulated operating rods, among which the insulated operating rods provide personal insulation protection during live / near-electric operation.

[0003] However, in traditional high-voltage electrical maintenance equipment, the insulated operating rods, which are key operating tools, mostly adopt an integrated fixed structure with a relatively long overall length. This results in significant space requirements during site relocation, climbing, and transportation within substations, making them inconvenient for single-person carrying and storage. Especially in scenarios with confined equipment spaces or complex outdoor terrain, the excessively long rods are prone to collisions with surrounding components, affecting maintenance efficiency and posing operational inconveniences and safety hazards, failing to meet the demands for flexible, convenient, and rapid on-site operations. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To address this, embodiments of the present invention propose a high-voltage electrical equipment maintenance operating lever. This lever solves the problems of traditional integrated long levers being inconvenient to carry and difficult to transport, and is particularly suitable for flexible operation and movement by a single person in scenarios such as substation equipment bays, high-altitude operations, and complex outdoor terrain.

[0006] The high-voltage electrical equipment maintenance operating lever of this invention includes a top rod, a middle rod, a hinge, a bottom rod, a support frame, a connecting plate, and a positioning assembly. The middle rod is located at one end of the top rod along its extension direction, and is rotatably connected to the top rod via the hinge. The bottom rod is located at the end of the middle rod away from the top rod along its extension direction, and is rotatably connected to the middle rod via the hinge, which provides rotational freedom so that the top rod and the bottom rod can be folded around the middle rod. The support frame is located at both ends of the middle rod. The connecting plate is located at the end of the top rod near the middle rod, and the connecting plate is located at the end of the bottom rod near the middle rod. The positioning assembly is located between the connecting plate and the support frame, and is used to unlock or lock the operating lever in its folded and unfolded states.

[0007] In this embodiment of the invention, the high-voltage electrical equipment maintenance operating rod is constructed by hinges that sequentially connect the top rod, middle rod, and bottom rod, allowing the rod to fold around the middle rod and thus change its overall length. A support frame is fixed to both ends of the middle rod, and connecting plates are fixed to the ends of the top and bottom rods, forming the basis for the installation and operation of the positioning assembly. The positioning assembly uses a mechanical locking mechanism (such as pins or buckles) between the connecting plates and the support frame. When the operating rod needs to be unfolded, the positioning assembly firmly locks the connecting plates and the support frame, keeping the top, middle, and bottom rods in a rigid, straight-line extended state. When storage or transportation is required, the locking mechanism can be released, allowing the top and bottom rods to fold inward around the hinges, thereby reducing the space occupied.

[0008] The folding structure fundamentally solves the pain points of traditional one-piece long poles, which are inconvenient to carry and difficult to transport. It is particularly suitable for single-person flexible operation and movement in scenarios such as substation equipment bays, high-altitude operations, and complex outdoor terrain. The foldable feature of the pole significantly reduces the risk of accidental collisions or snagging with surrounding structures and equipment in crowded maintenance sites, protecting equipment and improving the safety of workers. The convenient unfolding and storage method optimizes the preparation and subsequent organization processes before maintenance, helping to improve the overall efficiency of on-site maintenance work.

[0009] In some embodiments of the present invention, the positioning component includes a positioning block, which is slidably connected to the support frame, and the surface of the connecting plate has symmetrical positioning grooves.

[0010] In some embodiments of the present invention, the connecting plate and the support frame are engaged by the positioning block and the positioning groove.

[0011] In some embodiments of the present invention, the positioning component further includes a support spring disposed between the positioning block and the support frame to automatically reset the positioning block.

[0012] In some embodiments of the present invention, the positioning component further includes a lifting ring, which is movably connected to one end of the support frame.

[0013] In some embodiments of the present invention, the positioning component further includes a connecting rope disposed between the lifting ring and the positioning block, and the connecting rope passes through the support spring. The lifting ring and the connecting rope cooperate to make the positioning block move in a straight line.

[0014] In some embodiments of the invention, the end of the positioning block has a bevel.

[0015] In some embodiments of the present invention, the positioning block and the support frame are elastically connected by the support spring.

[0016] In some embodiments, the present invention further includes an insulating operating hook disposed at the top of the top rod.

[0017] In some embodiments, the present invention further includes an anti-slip outer sleeve, which is disposed on the bottom rod and the middle rod for anti-slip purposes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the positioning component according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the anti-slip outer protective sleeve according to an embodiment of the present invention.

[0021] Figure 4 This is an embodiment of the present invention. Figure 3 A magnified structural diagram of point A in the middle.

[0022] Figure label:

[0023] 100. High-voltage electrical equipment maintenance control lever; 1. Top rod; 2. Middle rod; 3. Hinge; 4. Bottom rod; 5. Support frame; 6. Connecting plate; 601. Positioning groove; 7. Positioning assembly; 701. Positioning block; 7011. Inclined surface; 702. Support spring; 703. Lifting ring; 704. Connecting rope; 705. Insulated operating hook; 706. Anti-slip outer sleeve. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] Reference Figures 1-4 The high-voltage electrical equipment maintenance operating lever 100 of this embodiment includes a top lever 1, a middle lever 2, a hinge 3, a bottom lever 4, a support frame 5, a connecting plate 6, and a positioning assembly 7. The middle lever 2 is located at one end of the top lever 1 along its extension direction, and is rotatably connected to the top lever 1 via the hinge 3. The bottom lever 4 is located at the end of the middle lever 2 away from the top lever 1 along its extension direction, and is rotatably connected to the middle lever 2 via the hinge 3. The hinge 3 provides rotational freedom, allowing the top lever 1 and the bottom lever 4 to fold around the middle lever 2. The support frame 5 is located at both ends of the middle lever 2. The connecting plate 6 is located at the end of the top lever 1 near the middle lever 2, and the bottom lever 4 is located at the end of the bottom lever 4 near the middle lever 2. The positioning assembly 7 is located between the connecting plate 6 and the support frame 5, and is used to unlock or lock the operating lever in its folded and unfolded states.

[0026] The top rod 1, middle rod 2, and bottom rod 4 are sequentially hinged by hinge 3, allowing the rods to fold around the middle rod 2, thus changing the overall length. Support frame 5 is fixed to both ends of the middle rod 2, and connecting plates 6 are fixed to the ends of the top rod 1 and bottom rod 4 respectively. Together, they form the basis for the installation and function of positioning component 7. Positioning component 7 acts between connecting plate 6 and support frame 5 through mechanical locking (such as pins or buckles). When the operating rod needs to be unfolded, positioning component 7 firmly locks connecting plate 6 and support frame 5, keeping the top rod 1, middle rod 2, and bottom rod 4 in a rigid, straight-line extended state. When storage or transportation is required, the lock can be released, allowing the top rod 1 and bottom rod 4 to fold inward around hinge 3, thereby reducing the space occupied.

[0027] The folding structure fundamentally solves the pain points of traditional one-piece long poles, which are inconvenient to carry and difficult to transport. It is particularly suitable for single-person flexible operation and movement in scenarios such as substation equipment bays, high-altitude operations, and complex outdoor terrain. The foldable feature of the pole significantly reduces the risk of accidental collisions or snagging with surrounding structures and equipment in crowded maintenance sites, protecting equipment and improving the safety of workers. The convenient unfolding and storage method optimizes the preparation and subsequent organization processes before maintenance, helping to improve the overall efficiency of on-site maintenance work.

[0028] In some embodiments, such as Figure 1 and Figure 2 As shown, the positioning component 7 of this embodiment includes a positioning block 701, which is slidably connected to the support frame 5, and the surface of the connecting plate 6 has symmetrical positioning grooves 601.

[0029] The positioning component 7 of this embodiment includes a positioning block 701, which is slidably connected to the support frame 5. Positioning grooves 601 are symmetrically arranged on the surface of the connecting plate 6. When the operating lever is in the unfolded state, the operator can slide the positioning block 701. The positioning block 701 is embedded in the positioning groove 601 of the connecting plate 6, achieving relative position locking between the top rod 1 or bottom rod 4 and the middle rod 2. When it is necessary to fold the operating lever, the operator can slide the positioning block 701 in the opposite direction. The positioning block 701 disengages from the positioning groove 601, releasing the locking constraint between the top rod 1 or bottom rod 4 and the middle rod 2. The operator can then rotate the top rod 1 or bottom rod 4, allowing the rod to fold around the hinge 3 axis.

[0030] In some embodiments, such as Figure 1 and Figure 2 As shown, in this embodiment of the invention, the connecting plate 6 and the support frame 5 are engaged by the positioning block 701 and the positioning groove 601.

[0031] In this embodiment of the invention, the connecting plate 6 and the support frame 5 are engaged and connected via a positioning block 701 and a positioning groove 601. The positioning block 701 and the support frame 5 are slidably connected. Positioning grooves 601 are symmetrically arranged on the surface of the connecting plate 6. When the operating rod needs to be unfolded and locked, the operator slides the positioning block 701 along the support frame 5. The positioning block 701 embeds into the positioning groove 601 of the connecting plate 6, achieving a mechanical interlock between the connecting plate 6 and the support frame 5, fixing the top rod 1, middle rod 2, and bottom rod 4 in a straight line. When the operating rod needs to be folded and stored, the operator slides the positioning block 701 in the opposite direction. The positioning block 701 disengages from the positioning groove 601 of the connecting plate 6, releasing the engagement constraint between the connecting plate 6 and the support frame 5. The top rod 1 and the bottom rod 4 can then rotate freely around the hinge 3 axis. The rod body can be folded, significantly shortening the overall length.

[0032] In some embodiments, such as Figure 1 and Figure 2 As shown, the positioning component 7 in this embodiment of the invention further includes a support spring 702, which is disposed between the positioning block 701 and the support frame 5 to automatically reset the positioning block 701.

[0033] The positioning component 7 in this embodiment of the invention also includes a support spring 702. The support spring 702 is disposed between the positioning block 701 and the support frame 5. The support spring 702 provides the positioning block 701 with an automatic reset force. When the operating lever is in the unfolded and locked state, the positioning block 701 maintains its tendency to be embedded in the positioning groove 601 of the connecting plate 6 under the action of the spring force of the support spring 702, so that the engagement connection between the connecting plate 6 and the support frame 5 has self-holding stability. When the operator needs to unlock the folding, an external force needs to be applied to overcome the spring force of the support spring 702 to slide the positioning block 701. The positioning block 701 disengages from the positioning groove 601. The engagement constraint between the connecting plate 6 and the support frame 5 is then released. The operator can rotate the top rod 1 or the bottom rod 4, and the rod body folds around the hinge 3 axis. When the operator removes the applied external force, the support spring 702 drives the positioning block 701 to automatically reset to the initial position.

[0034] In some embodiments, such as Figures 1-4 As shown, the positioning component 7 in this embodiment of the invention also includes a lifting ring 703, which is movably connected to one end of the support frame 5.

[0035] The positioning component 7 in this embodiment of the invention also includes a lifting ring 703. The lifting ring 703 is movably connected to one end of the support frame 5. The lifting ring 703 provides an effortless point of application for the operator. When it is necessary to unlock the folding operating lever, the operator can pull the lifting ring 703. The lifting ring 703 drives the positioning block 701 to slide against the elastic force of the support spring 702, and the positioning block 701 disengages from the positioning groove 601 of the connecting plate 6, releasing the locking between the connecting plate 6 and the support frame 5. The operator can then rotate the top rod 1 or the bottom rod 4, and the rod body folds around the hinge 3 axis. When the operator releases the lifting ring 703, the support spring 702 drives the positioning block 701 to automatically reset, and the positioning block 701 returns to its initial position. In this way, the unlocking operation can be completed with one hand, further improving the convenience and efficiency of the operating lever's state transition at the maintenance site.

[0036] In some embodiments, such as Figures 1-4 As shown, the positioning component 7 in this embodiment of the invention also includes a connecting rope 704, which is disposed between the lifting ring 703 and the positioning block 701, and the connecting rope 704 passes through the support spring 702. The lifting ring 703 and the connecting rope 704 cooperate to make the positioning block 701 move in a straight line.

[0037] A connecting rope 704 is located between the lifting ring 703 and the positioning block 701. The connecting rope 704 passes through the inside of the support spring 702. The lifting ring 703 is linked to the positioning block 701 through the connecting rope 704. When the operator pulls the lifting ring 703, the lifting ring 703 pulls the positioning block 701 through the connecting rope 704. The positioning block 701 overcomes the elastic force of the support spring 702 and slides linearly along the guide of the support frame 5, so that the positioning block 701 stably disengages from the positioning groove 601 of the connecting plate 6. The locking between the connecting plate 6 and the support frame 5 is then released, and the top rod 1 or bottom rod 4 of the operating lever can therefore rotate freely to achieve folding. When the operator releases the lifting ring 703, the restoring force of the support spring 702 pushes the positioning block 701 to move linearly in the opposite direction, and the positioning block 701 automatically returns to its initial position.

[0038] In some embodiments, such as Figures 1-4 As shown, the end of the positioning block 701 in this embodiment of the invention has a bevel 7011.

[0039] The positioning block 701 in this embodiment of the invention has an inclined surface 7011 at its end. The inclined surface 7011 forms a guide contact surface between the positioning block 701 and the positioning groove 601 of the connecting plate 6. When the operating rod changes from a folded state to an unfolded state, the operator rotates the top rod 1 or the bottom rod 4. The connecting plate 6 rotates with the rod and moves closer to the support frame 5. The edge of the groove 601 of the connecting plate 6 first contacts the inclined surface 7011 of the positioning block 701. The connecting plate 6 continues to rotate and applies pressure to the inclined surface 7011. This pressure is decomposed into a normal force perpendicular to the inclined surface 7011 and a tangential force parallel to the inclined surface 7011. The tangential force drives the positioning block 701 to slide along the support frame 5 against the elastic force of the support spring 702. The positioning block 701 temporarily retracts. When the connecting plate 6 rotates to its position, the positioning groove 601 and the positioning block 701 are completely aligned. The elastic force of the supporting spring 702 then pushes the positioning block 701 to slide into the positioning groove 601 along the inclined surface 7011. The positioning block 701 is embedded in the positioning groove 601 to complete the locking, realizing automatic alignment and locking when the operating lever is unfolded. The design of the inclined surface 7011 makes the locking process smooth and seamless.

[0040] In some embodiments, such as Figures 1-4 As shown, in this embodiment of the invention, the positioning block 701 and the support frame 5 are elastically connected by a support spring 702.

[0041] In this embodiment of the invention, the positioning block 701 and the support frame 5 are elastically connected by a support spring 702. The support spring 702 provides a continuous elastic preload to the positioning block 701, ensuring that the positioning block 701 always tends to move towards the connecting plate 6. When the operating lever is in the unfolded and locked state, the elastic force of the support spring 702 presses the positioning block 701 into the positioning groove 601 of the connecting plate 6, ensuring a stable engagement between the positioning block 701 and the positioning groove 601. When unlocking is required, the operator overcomes the elastic force using the lifting ring 703 and the connecting rope 704, pulling the positioning block 701 out of the positioning groove 601. The locking constraint between the connecting plate 6 and the support frame 5 is then released, allowing the operator to rotate the lever for folding. When the external force is removed, the restoring force of the support spring 702 drives the positioning block 701 to automatically reset, returning it to the locked position.

[0042] In some embodiments, such as Figure 1 As shown, an embodiment of the present invention also includes an insulating operating hook 705, which is disposed at the top of the top rod 1.

[0043] This embodiment of the invention also includes an insulated operating hook 705. The insulated operating hook 705 is located at the top of the top rod 1. As a functional execution component, the insulated operating hook 705 is in direct contact with the high-voltage electrical equipment, thus retaining the safety insulation performance of a traditional insulated operating rod.

[0044] In some embodiments, such as Figure 3 As shown, embodiments of the present invention also include an anti-slip outer sleeve 706, which is disposed on the bottom rod 4 and the middle rod 2 for anti-slip purposes.

[0045] This embodiment of the invention also includes an anti-slip outer sleeve 706. The anti-slip outer sleeve 706 is disposed on the outer surface of the bottom rod 4 and the middle rod 2. The anti-slip outer sleeve 706 provides the operator with a high-friction grip area. When the operator grips the bottom rod 4 and the middle rod 2, the palm of the hand contacts the anti-slip outer sleeve 706. The anti-slip outer sleeve 706 increases the static friction between the hand and the rod body.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-voltage electrical equipment maintenance operating rod, characterized in that, include: Top rod (1); The middle rod (2) and the hinge (3) are provided at one end of the top rod (1) along the extension direction of the top rod (1), and the middle rod (2) is rotatably connected to the top rod (1) through the hinge (3); The bottom rod (4) is located at the end of the middle rod (2) away from the top rod (1) along the extension direction of the top rod (1). The bottom rod (4) is rotatably connected to the middle rod (2) by the hinge (3). The hinge (3) is used to provide rotational freedom so that the top rod (1) and the bottom rod (4) can be folded around the middle rod (2). Support frame (5), the support frame (5) is located at both ends of the middle rod (2); Connecting plate (6), the connecting plate (6) is provided at one end of the top rod (1) near the middle rod (2), and the connecting plate (6) is provided at one end of the bottom rod (4) near the middle rod (2); Positioning component (7) is located between the connecting plate (6) and the support frame (5). The positioning component (7) is used to unlock or lock the folded and unfolded state of the operating lever.

2. The high voltage electrical apparatus servicing pole according to claim 1, characterized in that, The positioning component (7) includes a positioning block (701), which is slidably connected to the support frame (5), and the connecting plate (6) has symmetrical positioning grooves (601) on its surface.

3. The high voltage electrical apparatus servicing pole according to claim 2, characterized in that, The connecting plate (6) and the support frame (5) are engaged by the positioning block (701) and the positioning groove (601).

4. The high-voltage electrical equipment maintenance operating lever according to claim 3, characterized in that, The positioning component (7) further includes a support spring (702), which is disposed between the positioning block (701) and the support frame (5) to automatically reset the positioning block (701).

5. The high-voltage electrical equipment maintenance operating lever according to claim 4, characterized in that, The positioning component (7) also includes a lifting ring (703), which is movably connected to one end of the support frame (5).

6. The high voltage electrical apparatus servicing pole according to claim 5, characterized in that, The positioning component (7) further includes a connecting rope (704), which is located between the lifting ring (703) and the positioning block (701), and the connecting rope (704) passes through the support spring (702). The lifting ring (703) and the connecting rope (704) cooperate to make the positioning block (701) move in a straight line.

7. The high voltage electrical apparatus servicing pole according to claim 4, characterized in that, The end of the positioning block (701) has a bevel (7011).

8. The high voltage electrical apparatus servicing pole according to claim 7, characterized in that, The positioning block (701) and the support frame (5) are elastically connected by the support spring (702).

9. The high voltage electrical apparatus servicing pole according to claim 1, characterized in that, It also includes an insulating operating hook (705), which is located at the top of the top rod (1).

10. The high voltage electrical apparatus servicing pole according to any of claims 1-9, characterized in that, It also includes an anti-slip outer sleeve (706), which is provided on the bottom rod (4) and the middle rod (2) for anti-slip purposes.

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