Gis line cable vault personal security device

Abstract

This invention discloses a personal safety device for GIS cable silos, enabling rapid installation of grounding wires during GIS cable silo construction and solving the problem of limited compatibility with existing safety devices. The device includes a housing, a drive assembly and a linkage assembly mounted on the housing, and a gripper assembly connected to the linkage assembly. The gripper assembly includes a left gripper and a right gripper, with one gripper connected to the grounding wire. The left and right grippers cooperate to clamp the conductor. The drive assembly drives two linkage assemblies, which in turn drive the left and right grippers to open and close. The drive assembly includes an operating component and a movable block that can move up and down. The movable block is connected to the two linkage assemblies, and when the operating component is operated, it moves the movable block up and down.

Description

Technical Field

[0001] This invention belongs to the field of power engineering technology, specifically relating to a personal safety device for a GIS line cable warehouse. Background Technology

[0002] Personal protective equipment (PPE) is required for the installation and maintenance of GIS cable storage systems, and it is widely used both domestically and internationally. The commonly used Siemens FlexiGuard series supports conductors from ф40 to 100mm, but weighs 8kg, making it inconvenient to use. In 2024, the Guangzhou power grid developed a folding clamp, but its compatibility is still limited to ф60-90mm. The Hangzhou power supply company piloted a magnetic clamp in 2024, but it has been discontinued due to the risk of tripping. The Ningbo power supply company developed a telescopic bracket, which is only suitable for open switchgear. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide a personal safety device for GIS cable warehouses, enabling the rapid installation of grounding wires during the construction of GIS cable warehouses and solving the problem of limited compatibility specifications of existing safety devices.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an adjustable personal safety device for GIS cable compartments, comprising a housing, a drive assembly and a linkage assembly mounted on the housing, and a gripper assembly connected to the linkage assembly. The gripper assembly includes a left gripper and a right gripper, and one of the grippers is connected to a grounding wire. The gripper assembly clamps the conductor by the cooperation of the left and right grippers. The drive assembly drives the two linkage assemblies, which in turn drive the left and right grippers to open and close. The drive assembly includes an operating element and a movable block that can move up and down. The movable block is connected to the two linkage assemblies. When the operating element is operated, it drives the movable block to move up and down.

[0005] Preferably, the left and right grippers include gripper portions with gripper grooves and connecting rod portions connected to the bottom ends of the gripper portions.

[0006] Preferably, the linkage assembly includes a first linkage, a second linkage, and a third linkage. The first end of the first linkage is hinged to the upper part of the gripper portion and the second end is hinged to the moving block. The first end of the second linkage is hinged to the lower part of the gripper portion and the second end is hinged to the moving block. The first end of the third linkage is hinged to the housing and the second end is hinged to the middle part of the second linkage.

[0007] Preferably, the movable block is a rectangular block, with its upper left and right corners hinged to the second ends of the two first connecting rods, and its lower left and right corners hinged to the second ends of the two second connecting rods.

[0008] Preferably, the movable block has symmetrical hinge slots that extend vertically through each other on its left and right sides, and the second ends of the first connecting rod and the second connecting rod are inserted into the hinge slots and connected to pins.

[0009] Preferably, the drive assembly includes a drive shaft and a transmission rod that are perpendicular to each other. The transmission rod is vertically arranged and threadedly connected to the moving block, and the drive shaft drives the transmission rod to rotate.

[0010] Preferably, the drive assembly further includes a worm gear disposed on the drive shaft and a worm wheel connected to the transmission rod, wherein the worm gear and the worm wheel are connected in a transmission connection.

[0011] Preferably, the operating element is a rocker arm connected to the drive shaft.

[0012] Preferably, the housing includes a rectangular portion on the upper side and a protrusion extending downward from the middle of the lower side of the rectangular portion. The drive shaft is rotatably supported on the protrusion. The worm and worm wheel are disposed within the protrusion. The moving block and connecting rod assembly are disposed within the rectangular portion.

[0013] Preferably, a grounding wire hanger is connected to the side of the left or right gripper.

[0014] The present invention, by adopting the above technical solution, has the following beneficial effects: The clamping assembly is used to clamp the conductor and connect the grounding wire. The clamping assembly includes a left clamping jaw and a right clamping jaw. Since one of the clamping jaws is connected to the grounding wire, the clamping assembly can clamp the conductor with the left and right clamping jaws while simultaneously installing the grounding wire, thus enabling rapid installation of the grounding wire during the construction of the GIS cable silo.

[0015] To facilitate control of the gripper assembly's opening and closing, a drive assembly drives two linkage assemblies. The drive assembly includes an operating element and a movable block that can move up and down. The movable block is connected to the two linkage assemblies. When the operating element is operated, it causes the movable block to move up and down. The two linkage assemblies correspondingly drive the left and right grippers to open and close. One drive assembly can control the left and right grippers to move synchronously through the two linkage assemblies for easy operation. Because the two linkage assemblies have a large range of motion, they can achieve a wide range of opening and closing movements for the left and right grippers, thereby adapting to conductors of different specifications and solving the problem of limited compatibility of existing safety devices.

[0016] In addition, the drive assembly includes a worm gear located on the drive shaft and a worm wheel connected to the transmission rod. The worm gear and the worm wheel are connected in a transmission connection. The transmission rod is vertically arranged and threadedly connected to the moving block. The drive shaft drives the transmission rod to rotate. Since the worm gear and worm wheel can be self-locking, the moving block and the transmission rod can also be self-locking. After the left and right jaws cooperate to clamp the conductor, there is no risk of tripping.

[0017] These features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0018] The invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the adjustable personal safety device for the GIS cable compartment in the embodiment. In the figure: drive assembly 100, moving block 110, hinge groove 111, threaded hole 112, transmission rod 120, worm gear 121, drive shaft 130, worm 131, crank handle 140, connecting rod assembly 200, first connecting rod 210, second connecting rod 220, third connecting rod 230, gripper assembly 300, left gripper 310, connecting rod part 311, gripper part 312, gripper groove 313, right gripper 320, grounding wire hanger 330, housing 400, rectangular part 410, movable groove 411, protrusion 420. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0020] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0021] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "inner," and "outer" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Furthermore, the terms "first," "second," etc., 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0024] Combination Figure 1 As shown, this embodiment of the invention provides a personal safety device for a GIS cable storage compartment, including a housing 400, a drive assembly 100 and a linkage assembly 200 mounted on the housing, and a gripper assembly 300 connected to the linkage assembly 200. The gripper assembly 300 includes a left gripper 310 and a right gripper 320, with one gripper connected to a grounding wire. The gripper assembly 300 clamps the conductor by the cooperation of the left gripper 310 and the right gripper 320. The drive assembly 100 drives the two linkage assemblies 200, which correspondingly drive the left gripper 310 and the right gripper 320 to open and close. The drive assembly 100 includes an operating member and a movable block 110 that can move up and down. The movable block 110 is connected to the two linkage assemblies 200. When the operating member is operated, it drives the movable block 110 to move up and down.

[0025] Because one of the grippers is connected to the grounding wire, the gripper assembly simultaneously clamps the conductor with the left and right grippers, thus enabling rapid grounding wire installation during GIS cable silo construction. A single drive assembly can control the synchronous movement of the left and right grippers via two linkage assemblies for easy operation. Furthermore, the large range of motion of the two linkage assemblies allows for a wide opening and closing range of the left and right grippers, accommodating conductors of different specifications and resolving the limitation on compatibility with existing safety devices.

[0026] The left gripper 310 and the right gripper 320 have the same structure, both including a gripper part 312 with a gripper groove 313 and a connecting rod part 311 connected to the bottom end of the gripper part.

[0027] In some embodiments, the linkage assembly 200 includes a first link 210, a second link 220, and a third link 230. The first end of the first link 210 is hinged to the upper part of the gripper portion and the second end is hinged to the moving block 110. The first end of the second link 220 is hinged to the lower part of the gripper portion and the second end is hinged to the moving block 110. The first end of the third link 230 is hinged to the housing 400 and the second end is hinged to the middle part of the second link.

[0028] In some embodiments, the movable block 110 is a rectangular block. The upper left and right corners of the movable block are hinged to the second ends of two first connecting rods 210, and the lower left and right corners of the movable block 110 are hinged to the second ends of two second connecting rods 220. Specifically, the movable block 110 has symmetrically arranged vertically penetrating hinge slots 111 on both its left and right sides. The second ends of the first connecting rods 210 and the second connecting rods 220 are inserted into the hinge slots 111 and connected to pins. Additionally, the movable block 110 has a vertically penetrating threaded hole 112 in the middle for connecting to a transmission rod.

[0029] Because the upper part of the connecting rod is hinged to the second end of the first connecting rod, and the lower part of the connecting rod is hinged to the second end of the second connecting rod, while the upper and lower sides of the moving block are hinged to the second ends of the first and second connecting rods respectively, the first connecting rod, the second connecting rod, the connecting rod, and the moving block form a hinged four-bar linkage mechanism, allowing the connecting rod to move left and right. Specifically, the moving block is designed for linear up-and-down movement, and its upper and lower hinge points drive the second ends of the first and second connecting rods to move, which in turn transmits the motion through the hinge points of the connecting rod, ultimately achieving the left and right movement of the connecting rod.

[0030] In some embodiments, the drive assembly 100 includes a drive shaft 130 and a transmission rod 120 that are perpendicular to each other. The transmission rod 120 is vertically arranged and threadedly connected to the moving block 110. The drive shaft 130 drives the transmission rod 120 to rotate. Additionally, the drive assembly 100 includes a worm gear 131 disposed on the drive shaft 130 and a worm wheel 121 connected to the transmission rod 120. The worm gear 131 and the worm wheel 121 are driveably connected. Because the worm gear and worm wheel are self-locking, and the threaded connection structure between the moving block and the transmission rod is also self-locking, there is no risk of tripping after the left and right jaws clamp the conductor.

[0031] Specifically, the operating component is a crank handle 140 connected to the drive shaft 130, meaning the crank handle is fixedly connected to one end of the drive shaft. This arrangement positions the drive assembly below the gripper assembly, avoiding increased lateral space requirements. Furthermore, the lateral movement of the two linkage assemblies is relatively small, and the entire assembly is located within the rectangular portion of the housing, making it suitable for operation in confined spaces. Additionally, the crank handle facilitates manual operation and allows for flexible adjustment of the rotation angle to accommodate different conductor specifications.

[0032] It is understandable that a bevel gear transmission pair can also be used to connect the drive shaft 130 and the transmission rod 120, replacing the worm gear transmission pair mentioned above.

[0033] Specifically, the housing 400 includes an upper rectangular portion 410 and a protrusion 420 extending downward from the middle of the lower side of the rectangular portion. The drive shaft 130 is rotatably supported on the protrusion 420. The worm gear 131 and worm wheel 121 are disposed within the protrusion 420, and the moving block 110 and linkage assembly 200 are disposed within the rectangular portion 410. The top opening of the rectangular portion forms a left-right extending movable groove 411 through which the linkage portions 311 of the left gripper 310 and the right gripper 320 move. It is understood that the left and right sidewalls of the movable groove do not restrict the maximum limit positions of the left gripper 310 and the right gripper 320, but are limited by the movement of the four-bar linkage itself.

[0034] To facilitate connection of the grounding wire, a grounding wire hanger 330 is connected to the side of either the left jaw 310 or the right jaw 320. In this embodiment, the right jaw 320 is connected to the grounding wire hanger 330, and the grounding wire hanger 330 is connected to the right jaw 320 by bolts.

[0035] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Those skilled in the art should understand that the invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the invention will be included within the scope of the claims.

Claims

1. A personal safety device for GIS cable storage, characterized in that, The device includes a housing, a drive assembly and a linkage assembly mounted on the housing, and a gripper assembly connected to the linkage assembly. The gripper assembly includes a left gripper and a right gripper, with one gripper connected to a grounding wire. The gripper assembly clamps the conductor by the cooperation of the left and right grippers. The drive assembly drives the two linkage assemblies, which in turn drive the left and right grippers to open and close. The drive assembly includes an operating element and a movable block that can move up and down. The movable block is connected to the two linkage assemblies, and when the operating element is operated, it causes the movable block to move up and down.

2. The personal safety device for GIS cable warehouses according to claim 1, characterized in that, The left and right grippers each include a gripper portion with a gripper groove and a connecting rod portion connected to the bottom end of the gripper portion.

3. The personal safety device for GIS cable warehouses according to claim 2, characterized in that, The linkage assembly includes a first link, a second link, and a third link. The first link has a first end hinged to the upper part of the gripper portion and a second end hinged to the moving block. The second link has a first end hinged to the lower part of the gripper portion and a second end hinged to the moving block. The third link has a first end hinged to the housing and a second end hinged to the middle part of the second link.

4. The personal safety device for GIS cable warehouses according to claim 3, characterized in that, The movable block is a rectangular block. The upper left and right corners of the movable block are hinged to the second ends of the two first connecting rods, respectively. The lower left and right corners of the movable block are hinged to the second ends of the two second connecting rods, respectively.

5. The personal safety device for GIS cable warehouses according to claim 4, characterized in that, The moving block has symmetrical hinge slots that run vertically through each other on its left and right sides. The second ends of the first connecting rod and the second connecting rod are inserted into the hinge slots and connected to pins.

6. The personal safety device for GIS cable warehouses according to claim 1, characterized in that, The drive assembly includes a drive shaft and a transmission rod that are perpendicular to each other. The transmission rod is vertically arranged and threadedly connected to the moving block. The drive shaft drives the transmission rod to rotate.

7. The personal safety device for GIS cable warehouses according to claim 6, characterized in that, The drive assembly also includes a worm gear disposed on the drive shaft and a worm wheel connected to the transmission rod, wherein the worm gear and the worm wheel are connected in a transmission connection.

8. The personal safety device for GIS cable warehouses according to claim 7, characterized in that, The operating component is a rocker arm connected to the drive shaft.

9. The personal safety device for a GIS cable warehouse according to claim 7, characterized in that, The housing includes a rectangular portion on the upper side and a protrusion extending downward from the middle of the lower side of the rectangular portion. The drive shaft is rotatably supported on the protrusion. The worm and worm wheel are disposed inside the protrusion. The moving block and connecting rod assembly are disposed inside the rectangular portion.

10. The personal safety device for a GIS cable warehouse according to claim 1, characterized in that, A grounding wire hanger is connected to the side of the left or right gripper.

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