Hard insulating partition plate for installing cross arm for hot-line work

Abstract

The invention discloses a cross arm mounting hard insulating partition plate for hot-line work, and belongs to the technical field of overhead transmission lines, the cross arm mounting hard insulating partition plate comprises a forward cross arm partition plate assembly and a reverse cross arm partition plate assembly, and the forward cross arm partition plate assembly and the reverse cross arm partition plate assembly are each composed of a main insulating partition plate and a handheld handle; the handheld handle comprises a clamping groove, an upper clamping plate, a fixing screw, a lower clamping plate, a spring, a fixing end and a handheld rod, a cross arm opening is formed in the main insulation partition plate and used for being matched with the clamping groove formed in the handheld handle to achieve the clamping and fixing effects, and the main insulation partition plate is fixedly connected with the handheld handle through the fixing screw. When the cross arm partition plate is installed forwards, the insulation isolation device is mainly used for achieving the insulation isolation effect on the upper portion of the cross arm, when the cross arm partition plate is installed reversely, the insulation isolation device is mainly used for achieving the insulation isolation effect on the lower portion of the cross arm, and the insulation device has the technical effects of being high in adaptability, convenient and fast to install, firm in fixation, reliable in insulation and capable of effectively improving the use efficiency.

Description

Technical Field

[0001] This invention belongs to the field of overhead transmission line technology, and particularly relates to a rigid insulating partition for installing a crossarm for live-line work. Background Technology

[0002] With the rapid development of society and the economy, electricity has become a core energy source for industrial production, people's livelihood, and the normal operation of various emerging industries. The continuous and reliable operation of the power grid is directly related to national economic development and the quality of life of the people. To minimize the impact of line maintenance on power supply and reduce power outage losses, live-line working, as a work method that can complete maintenance without interrupting the power supply to the line, has seen its application scope continuously expand and its participation increase year by year. It has become one of the key technical means to ensure the reliability of power grid supply. This work method can effectively avoid the problem of large-scale power outages caused by traditional power outage maintenance, achieving a balance between line maintenance and reliable power supply for users. It is especially suitable for scenarios with extremely high requirements for power supply continuity, such as urban core areas and important load lines.

[0003] In live-line work, workers must operate around energized equipment. To prevent electric shock, short circuits, and other safety hazards, and to ensure the personal safety of workers and the safe and stable operation of equipment, reliable insulation and shielding or isolation protection of the grounding conductor in the work area is an essential and crucial step. Crossarms, as one of the core components of overhead transmission lines, are mainly used to support conductors, insulators, and other equipment. They are mostly made of metal and are typical grounding conductors, widely distributed in various transmission line connections. Due to differences in line design, installation scenarios, and load requirements, the installation methods of crossarms in lines are diverse. The most common are upright installation (crossarm installed horizontally upwards) and reverse installation (crossarm installed horizontally downwards). Furthermore, the length, width, thickness, and installation spacing of crossarms vary depending on the specifications of the line.

[0004] However, the existing crossarm insulation shielding or Gree tools on the market generally have problems such as poor compatibility, poor shielding effect, and complicated installation. They cannot meet the insulation protection requirements of crossarms with different installation methods and specifications at the same time, and it is difficult to achieve comprehensive and reliable shielding of crossarms. This poses a great safety hazard to live work and restricts the efficiency and safety of live work. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a rigid insulating partition for installing crossarms in live-line work. It has the advantages of strong adaptability, convenient installation, firm fixing, and reliable insulation, and solves the problems of existing crossarm insulation tools being unable to adapt to crossarms of different installation methods and specifications, cumbersome installation, and unreliable shielding.

[0006] This invention is implemented as follows: a rigid insulating partition for installing a crossarm in live-line work includes a positively mounted crossarm partition assembly and a reversely mounted crossarm partition assembly. Both the positively mounted and reversely mounted crossarm partition assemblies consist of a main insulating partition and a hand handle. The hand handle includes a slot, an upper locking plate, a fixing screw, a lower locking plate, a spring, a fixing end, and a hand handle. The main insulating partition has a crossarm opening for engaging with the slot on the hand handle to achieve a locking and fixing function. The main insulating partition is fixedly connected to the hand handle by the fixing screw. When the crossarm partition is positively mounted, it mainly serves as an insulating barrier above the crossarm; when the crossarm partition is reversely mounted, it mainly serves as an insulating barrier below the crossarm.

[0007] With this setup, during use, operators can select the corresponding partition assembly according to the forward or reverse installation method of the crossarm. By using the slot of the crossarm opening of the main insulating partition to cooperate with the hand handle, a preliminary engagement is achieved. Then, the main insulating partition and the hand handle are firmly fixed with fixing screws to ensure that the two are tightly connected and not loose. In this way, the main insulating partition can achieve insulation isolation of the crossarm and avoid the risk of electric shock during live work.

[0008] In a preferred embodiment of the present invention, the upper and lower clamping plates are both connected to the main insulating partition plate by fixing screws, the spring is disposed inside the hand handle, the spring of the positively mounted crossarm partition assembly is connected to the lower clamping plate, the spring of the reverse-mounted crossarm partition assembly is connected to the upper clamping plate, and the fixing end is fixed to the end of the hand handle.

[0009] With this setup, the fixing screws ensure a secure connection between the upper and lower clamping plates and the main insulating partition during use, preventing the clamping plates from falling off during operation. The springs are connected to the corresponding movable clamping plates (the upright lower clamping plate and the reversed upper clamping plate) to provide elastic driving force for the movement of the movable clamping plates. The fixed end can limit the springs, preventing them from falling out of the handle, while also improving the grip comfort and operational stability of the handle.

[0010] In a preferred embodiment of the present invention, the upper clamping plate of the positive crossarm partition assembly and the lower clamping plate of the reverse crossarm partition assembly are fixed parts used to fix the hand handle to the main insulating partition. The lower clamping plate of the positive crossarm partition assembly and the upper clamping plate of the reverse crossarm partition assembly are movable parts used to connect with the spring to open the fixing port and engage the crossarm.

[0011] With this setup, during use, the fixed plates (upper plate for upright mounting, lower plate for reverse mounting) are fixed to the main insulating partition with fixing screws, providing a stable mounting base for the hand handle and ensuring that there is no relative movement between the hand handle and the main insulating partition. The movable plates (lower plate for upright mounting, upper plate for reverse mounting) are connected to springs and can move flexibly under the elastic action of the springs. During operation, simply drive the movable plates to open the fixing port, making it easy to quickly snap the crossarm into the slot, simplifying the installation operation steps.

[0012] As a preferred embodiment of the present invention, the main insulating partition is made of epoxy resin insulating material.

[0013] With this setup, the epoxy resin insulation material exhibits excellent insulation performance, mechanical strength, and aging resistance during use. It can effectively block current conduction between the crossarm (grounding electrode) and live equipment or workers, achieving reliable insulation isolation. At the same time, it can withstand minor collisions and compressions during live work, is not easily damaged or deformed, extends the service life of the tool, and is suitable for complex outdoor working environments.

[0014] In a preferred embodiment of the present invention, the slot is used to engage and fix the two sides of the crossarm, and the lower clamping plate of the upright crossarm partition assembly and the upper clamping plate of the reverse crossarm partition assembly are moved by the spring to achieve adaptive clamping and fixing of the main insulating partition.

[0015] With this setup, the slots can fit against the two sides of the crossarm during use, achieving initial positioning of the crossarm. At the same time, the spring drives the movable clamping plate to move, which can adaptively adjust the clamping force according to the thickness and width of the crossarm, ensuring that crossarms of different specifications are firmly clamped, preventing the partition assembly from sliding or falling off during operation, ensuring the reliability of insulation and isolation, making it flexible to use and improving work efficiency.

[0016] As a preferred embodiment of the present invention, the lower clamping plate of the upright crossarm partition assembly and the upper clamping plate of the reverse crossarm partition assembly are elastically connected to the hand handle by springs, so that they can move along the axial direction of the hand handle under the action of external force to expand the fixing opening. After being released, the springs reset and drive the movable lower clamping plate and upper clamping plate to clamp the crossarm respectively.

[0017] With this setup, when in use, the operator only needs to apply external force to pull or push the movable clamping plate, which will move the movable clamping plate along the axial direction of the hand handle, expanding the fixing opening formed by the clamping groove, making it easier to quickly clamp the crossarm. After releasing the external force, the spring automatically resets, causing the movable clamping plate to move in the opposite direction, narrowing the fixing opening, and thus firmly clamping the crossarm. The operation is simple and labor-saving, effectively reducing the labor intensity of the operator and shortening the operation time.

[0018] As a preferred embodiment of the present invention, the crossarm opening of the main insulating partition corresponds to the slot of the hand handle, so as to jointly form a wrap-around fixing structure for the crossarm.

[0019] With this setting, when in use, the crossarm opening and the corresponding slot can be matched to wrap the side of the crossarm inside, forming a wrap-around fixation. On the one hand, it can improve the fit between the crossarm and the partition assembly, ensure the comprehensiveness of insulation and isolation, and avoid the occurrence of isolation blind spots. On the other hand, it can further improve the firmness of the fixation and prevent the partition assembly from shifting during operation, thus affecting the safety of live work.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the combination tool is designed differently for different installation methods of the crossarm, ensuring reliable insulation and isolation under different work positions and different installation methods; the tool adopts a double slot design, which can realize reliable installation of the crossarm in both positive and negative installation methods, ensuring the firmness of the tool installation; for crossarms of different specifications, the slot at one end of the tool adopts the spring slide rail design principle, which not only ensures the installation strength, but also improves the applicability to crossarms of different specifications. Easy to operate and reduces labor intensity: During operation, after one end of the tool is fixed, the other end can be quickly engaged with the help of the crossbeam. The operation is simple and labor-saving, simplifying the work steps. High adaptability: By setting two partition components for positive and negative mounting respectively, it can accurately adapt to the positive and negative mounting methods of crossarm. At the same time, with the help of spring-driven movable clamping plate and self-adaptive clamping structure, it can adapt to the installation of crossarms of different specifications, making it flexible to use. Easy and labor-saving installation simplifies the live-line work process: it reduces the labor intensity of operators. Through the cooperation of the movable part of the clamping plate and spring, only external force needs to be applied to open the fixing port and clamp the crossarm. Releasing the external force will achieve automatic clamping. The operation process is simple and does not require complicated auxiliary tools, effectively improving work efficiency. Securely fixed and reliably insulated: The main insulating partition and the hand handle are fixedly connected by fixing screws, and the crossarm is fixed by a wrap-around slot that fits into the crossarm opening. In addition, the self-adaptive clamping action of the spring ensures that the partition assembly will not loosen or shift after installation, eliminating safety hazards. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the upright crossbeam partition assembly structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the reverse-mounted crossbeam partition assembly structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the initial mating state structure provided in the embodiment of the present invention. a is a diagram showing the state of the crossbeam partition; b is a diagram showing the state of the reverse-installed crossbeam partition; Figure 4This is a schematic diagram of the final fixed state structure provided in the embodiment of the present invention. a is a diagram showing the state of the crossbeam partition; b is a diagram showing the state of the reverse-installed crossbeam partition.

[0022] In the diagram: 1. Main insulating partition; 2. Hand handle; 2-1. Slot; 2-2. Upper plate; 2-3. Fixing screw; 2-4. Lower plate; 2-5. Spring; 2-6. Fixing end; 2-7. Hand handle. Detailed Implementation

[0023] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] refer to Figures 1 to 4 As shown in the figure, an embodiment of the present invention provides a rigid insulating partition for installing a crossarm in live-line work, including a positively mounted crossarm partition assembly and a reverse mounted crossarm partition assembly. Both the positively mounted crossarm partition assembly and the reverse mounted crossarm partition assembly are composed of a main insulating partition 1 and a hand handle 2. The hand handle 2 includes a slot 2-1, an upper locking plate 2-2, a fixing screw 2-3, a lower locking plate 2-4, a spring 2-5, a fixing end 2-6, and a hand handle 2-7. The main insulating partition 1 has a crossarm opening, which is used to cooperate with the slot 2-1 on the hand handle 2 to achieve a locking and fixing function. The main insulating partition 1 is fixedly connected to the hand handle 2 by the fixing screw 2-3. When the crossarm partition is positively mounted, it mainly serves as an insulating barrier above the crossarm. When the crossarm partition is reverse mounted, it mainly serves as an insulating barrier below the crossarm.

[0026] Using the above scheme, the operator can select the corresponding partition assembly according to the forward or reverse installation method of the crossarm. The crossarm opening of the main insulating partition 1 and the slot 2-1 of the hand handle 2 are used to achieve initial engagement. Then, the main insulating partition 1 and the hand handle 2 are firmly fixed by the fixing screws 2-3 to ensure that the two are tightly connected and not loose. In this way, the main insulating partition 1 can achieve insulation isolation of the crossarm and avoid the risk of electric shock during live work.

[0027] Specifically, the upper clamping plate 2-2 and the lower clamping plate 2-4 are both connected to the main insulating partition plate 1 by fixing screws 2-3. The spring 2-5 is set inside the hand handle 2-7. The spring 2-5 of the positive mounting crossarm partition assembly is connected to the lower clamping plate 2-4, and the spring 2-5 of the reverse mounting crossarm partition assembly is connected to the upper clamping plate 2-2. The fixing end 2-6 is fixed to the end of the hand handle 2-7.

[0028] Using the above scheme, the fixing screw 2-3 can ensure that the upper clamping plate 2-2, the lower clamping plate 2-4 are firmly connected to the main insulating partition 1, preventing the clamping plates from falling off during operation. The spring 2-5 is connected to the lower clamping plate 2-4 (forward) and the upper clamping plate 2-2 (reverse) of the corresponding movable clamping plate, respectively, providing elastic driving force for the movement of the movable clamping plate. The fixing end 2-6 can limit the spring 2-5, preventing the spring 2-5 from falling off from the inside of the hand handle 2-7, while improving the grip comfort and operation stability of the hand handle 2.

[0029] Specifically, the upper clamping plate 2-2 of the positive crossarm partition assembly and the lower clamping plate 2-4 of the reverse crossarm partition assembly are fixed parts used to fix the hand handle 2 to the main insulating partition 1. The lower clamping plate 2-4 of the positive crossarm partition assembly and the upper clamping plate 2-2 of the reverse crossarm partition assembly are movable parts used to connect with the spring 2-5 to open the fixing port and engage the crossarm.

[0030] Using the above scheme, the upper clamping plate 2-2 of the fixed part and the lower clamping plate 2-4 of the reverse part are fixed to the main insulating partition 1 by fixing screws 2-3, providing a stable installation base for the hand handle 2 and ensuring that the hand handle 2 and the main insulating partition 1 will not move relative to each other. The lower clamping plate 2-4 of the movable part and the upper clamping plate 2-2 of the reverse part are connected to spring 2-5 and can move flexibly under the elastic action of spring 2-5. During operation, the fixed port can be opened by simply driving the movable clamping plate, which makes it easy to quickly insert the crossarm into the slot 2-1, simplifying the installation operation steps.

[0031] Specifically, the main insulating partition 1 is made of epoxy resin insulating material.

[0032] Using the above solution, epoxy resin insulation material has excellent insulation performance, mechanical strength and aging resistance. It can effectively block the current conduction between the crossarm grounding electrode and the live equipment and workers, and achieve reliable insulation isolation. At the same time, it can withstand slight collisions and squeezing during live work, and is not easily damaged or deformed, thus extending the service life of the tools and adapting to complex outdoor working environments.

[0033] Specifically, the slot 2-1 is used to clamp and fix the two sides of the crossarm, and the spring 2-5 drives the lower clamping plate 2-4 of the upright crossarm partition assembly and the upper clamping plate 2-2 of the reverse crossarm partition assembly to move, so as to realize the adaptive clamping and fixing of the main insulating partition 1.

[0034] Using the above solution, the slot 2-1 can fit against the two sides of the crossarm to achieve initial positioning of the crossarm. At the same time, the spring 2-5 drives the movable clamping plate to move, which can adaptively adjust the clamping force according to the thickness and width of the crossarm to ensure that crossarms of different specifications are firmly clamped, preventing the partition assembly from sliding or falling off during operation, ensuring the reliability of insulation and isolation, and making it flexible to use and improving work efficiency.

[0035] Specifically, the lower clamping plate 2-4 of the upright crossarm partition assembly and the upper clamping plate 2-2 of the reverse crossarm partition assembly are elastically connected to the hand handle 2-7 via a spring 2-5, so that they can move axially along the hand handle 2-7 under external force to expand the fixing opening. After being released, the spring 2-5 resets and drives the movable lower clamping plate 2-4 and upper clamping plate 2-2 to clamp the crossarm respectively.

[0036] Using the above solution, the operator only needs to apply external force to pull or push the movable clamping plate, which will move the movable clamping plate along the axis of the hand lever 2-7, expanding the fixing opening formed by the clamping slot 2-1, making it easier to quickly clamp the crossarm. After releasing the external force, the spring 2-5 will automatically reset, causing the movable clamping plate to move in the opposite direction, narrowing the fixing opening, and thus firmly clamping the crossarm. The operation is simple and labor-saving, effectively reducing the labor intensity of the operator and shortening the operation time.

[0037] Specifically, the crossarm opening of the main insulating partition 1 corresponds to the slot 2-1 of the hand handle 2, which together form a wrap-around fixing structure for the crossarm.

[0038] Using the above solution, the crossarm opening and the slot 2-1 are matched accordingly, which can wrap the side of the crossarm inside to form a wrap-around fixation. On the one hand, it can improve the fit between the crossarm and the partition assembly, ensure the comprehensiveness of insulation and isolation, and avoid the occurrence of isolation blind spots. On the other hand, it can further improve the firmness of the fixation and prevent the partition assembly from shifting during operation, thus affecting the safety of live work.

[0039] Working principle of the invention: When using the equipment, the operator should hold the handle 2-7 with both hands and insert the slot 2-1 into the angle iron of the crossarm. Then, use the handle 2-7 to pull the lower plate 2-4 down to the appropriate position until the lower plate 2-4 can be smoothly inserted into the other angle iron of the crossarm. Then release both hands to complete the installation. When performing the reverse installation of the crossarm partition, hold the hand handle 2-7 with both hands, insert the slot 2-1 of the lower clamping plate 2-4 into the crossarm angle iron, then push the hand handle 2-7 forward to widen the opening so that the upper clamping plate 2-2 can be inserted into the other angle iron of the crossarm, release both hands, and the quick installation of the insulating partition is completed.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rigid insulating partition for installing a crossarm in live-line working, characterized in that: The assembly includes a forward-mounted crossarm partition assembly and a reverse-mounted crossarm partition assembly. Both the forward-mounted and reverse-mounted crossarm partition assemblies consist of a main insulating partition (1) and a hand handle (2). The hand handle (2) includes a slot (2-1), an upper slot (2-2), a fixing screw (2-3), a lower slot (2-4), a spring (2-5), a fixing end (2-6), and a hand handle (2-7). The main insulating partition (1) has a crossarm opening, which is used to cooperate with the slot (2-1) on the hand handle (2) to achieve a locking and fixing function. The main insulating partition (1) is fixedly connected to the hand handle (2) by the fixing screw (2-3). When the crossarm partition is forward-mounted, it is mainly used to provide insulation and isolation above the crossarm. When the crossarm partition is reverse-mounted, it is mainly used to provide insulation and isolation below the crossarm.

2. The rigid insulating partition for installing a crossarm in live-line working as described in claim 1, characterized in that: The upper clamping plate (2-2) and the lower clamping plate (2-4) are both connected to the main insulating partition plate (1) by fixing screws (2-3). The spring (2-5) is set inside the hand handle (2-7). The spring (2-5) of the positive mounting crossarm partition assembly is connected to the lower clamping plate (2-4). The spring (2-5) of the reverse mounting crossarm partition assembly is connected to the upper clamping plate (2-2). The fixed end (2-6) is fixed to the end of the hand handle (2-7).

3. The rigid insulating partition for installing a crossarm in live-line working as described in claim 1, characterized in that: The upper clamping plate (2-2) of the positive crossarm partition assembly and the lower clamping plate (2-4) of the reverse crossarm partition assembly are fixed parts, used to fix the hand handle (2) to the main insulating partition (1). The lower clamping plate (2-4) of the positive crossarm partition assembly and the upper clamping plate (2-2) of the reverse crossarm partition assembly are movable parts, used to connect with the spring (2-5) to open the fixing port and insert the crossarm.

4. The rigid insulating partition for installing a crossarm in live-line working as described in claim 1, characterized in that: The main insulating partition (1) is made of epoxy resin insulating material.

5. A rigid insulating partition for installing a crossarm during live-line working as described in claim 3, characterized in that: The slot (2-1) is used to clamp and fix the two sides of the crossarm, and the spring (2-5) drives the lower clamping plate (2-4) of the upright crossarm partition assembly and the upper clamping plate (2-2) of the reverse crossarm partition assembly to move, so as to realize the adaptive clamping and fixing of the main insulating partition (1).

6. A rigid insulating partition for installing a crossarm during live-line working as described in claim 3, characterized in that: The lower clamping plate (2-4) of the upright crossarm partition assembly and the upper clamping plate (2-2) of the reverse crossarm partition assembly are elastically connected to the hand handle (2-7) via a spring (2-5), so that they can move axially along the hand handle (2-7) under external force to expand the fixing opening. After being released, the spring (2-5) resets and drives the movable lower clamping plate (2-4) and upper clamping plate (2-2) to clamp the crossarm respectively.

7. A rigid insulating partition for installing a crossarm during live-line working as described in claim 1, characterized in that: The crossarm opening of the main insulating partition (1) corresponds to the slot (2-1) of the hand handle (2) to jointly form a wrap-around fixing structure for the crossarm.

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