Grounding device structure for low-voltage branch switch

Abstract

The invention discloses a grounding device structure for a low-voltage branch switch, and the structure comprises a grip housing which comprises a grip frame and an assembly cavity housing. A grounding base plate; the plurality of groups of fixed claws are fastened on the grounding bottom plate; the sliding plate is arranged in the assembling cavity shell, a plurality of sets of movable claws are arranged on the sliding plate, and a first linkage supporting shaft and a second linkage supporting shaft are further arranged on the sliding plate; the rotating disc is rotatably connected in the assembling cavity shell, and one end of the rotating disc is rotatably connected with the first linkage supporting shaft; one end of the reset elastic piece is arranged on the second linkage supporting shaft, and the other opposite end of the reset elastic piece is fastened with the assembly cavity shell; and one end of the operating handle penetrates through the grip frame and is connected with the other opposite end of the turntable. By implementing the grounding device structure for the low-voltage branch switch, the connection stability with the outgoing line of the low-voltage branch switch can be enhanced; the structure is simple, repair and maintenance are easy, and operation safety and stability are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more particularly to a grounding device structure for a low-voltage branch switch. Background Technology

[0002] In existing technologies, with the upgrading and transformation of power grids, low-voltage line construction work is increasing. However, the low-voltage branch switches (circuit breakers) in low-voltage distribution cabinets and switch boxes are very close together, making it impossible to directly install existing low-voltage grounding wires on these switches. Often, it is necessary to shut down the main low-voltage switch and install the grounding wire on the outgoing side of the main low-voltage switch or on the low-voltage line. This method not only increases the workload and operational risks for operators but also expands the power outage area, seriously affecting power supply reliability and customer satisfaction. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a grounding device structure for a low-voltage branch switch, which can enhance the connection stability with the outgoing line of the low-voltage branch switch; the structure is simple, easy to repair and maintain, and ensures safe and stable operation.

[0004] To address the aforementioned technical problems, this invention provides a grounding device structure for a low-voltage branch switch, comprising: a handle housing, the handle housing including: a handle frame and an assembly cavity extending from the handle frame; a grounding base plate installed at the open end of the assembly cavity; multiple sets of fixed claws fastened to the grounding base plate; a sliding plate installed in the assembly cavity, the sliding plate being provided with multiple sets of movable claws, and the sliding plate also being provided with a first linkage support shaft and a second linkage support shaft; and a turntable rotatably connected in the assembly cavity, one end of the turntable being rotatably connected to the first linkage support shaft. The device includes a reset elastic element, one end of which is mounted on the second linkage support shaft, and the other end of which is fastened to the assembly cavity shell; and an operating handle, one end of which passes through the grip frame and is connected to the other end of the turntable. The operating handle extends into or out of the assembly cavity shell to rotate the linkage turntable. The turntable drives the first linkage support shaft to slide and change the relative position between the sliding plate and the grounding base plate, so that multiple sets of moving claws open or close synchronously relative to multiple sets of fixed claws, thereby installing the grounding device on the low-voltage branch switch output line.

[0005] The grip frame includes a crossbeam connected to the assembly cavity shell and a frame surrounding the outer perimeter of the crossbeam. The operating handle includes an operating handle body and a connecting rod connected to the operating handle body, with one end of the connecting rod passing through the crossbeam and rotatably connected to the turntable.

[0006] It also includes: an anti-accidental locking nut, which is detachably connected to the frame and is positioned to correspond to the position of the operating handle body.

[0007] The sliding plate includes: a sliding plate body and a first connecting plate and a second connecting plate respectively protruding on one side of the sliding plate body, a retaining groove being formed between the first connecting plate and the second connecting plate, a first linkage support shaft being mounted on the first connecting plate, and a second linkage support shaft being mounted on the second connecting plate.

[0008] The turntable includes a fixed rotating shaft end and two linkage ends connected to the fixed rotating shaft end. The two linkage ends are respectively provided with oblong holes. The first linkage support shaft is installed in one of the oblong holes, and one end of the operating handle is installed in the other oblong hole. The linkage end connected to the operating handle is limited by a retaining groove.

[0009] The ends of multiple sets of moving claws and multiple sets of fixed claws extend from the opening end of the assembly cavity shell to the outside of the assembly cavity shell.

[0010] The system includes multiple sets of moving jaws and multiple sets of fixed jaws, which are equidistant from each other. Both sets of moving jaws and fixed jaws are made of brass. The assembly cavity is made of nylon, and the grip frame and operating handle are made of fiberglass.

[0011] The multiple moving claws and multiple fixed claws are designed as a three-in-one structure, corresponding to clamp the three outgoing lines of the low-voltage branch switch.

[0012] It also includes: a monitoring unit for monitoring the synchronous opening or closing of multiple sets of moving claws relative to multiple sets of fixed claws, and an instantaneous arc extinguishing unit for ensuring that the grounding device is installed on the low-voltage branch switch output line without residual charge.

[0013] The instantaneous arc-extinguishing unit includes a varistor and a ceramic arc-extinguishing grid.

[0014] The grounding device structure for a low-voltage branch switch according to the present invention has the following beneficial effects: The grounding device structure for a low-voltage branch switch includes: a handle housing, the handle housing including: a handle frame and an assembly cavity extending from the handle frame; a grounding base plate installed at the open end of the assembly cavity; multiple sets of fixed claws fastened to the grounding base plate; a sliding plate installed in the assembly cavity, the sliding plate being provided with multiple sets of movable claws, and the sliding plate also being provided with a first linkage support shaft and a second linkage support shaft; a turntable rotatably connected in the assembly cavity, one end of the turntable being rotatably connected to the first linkage support shaft; and a reset elastic element, one of which... The first linkage support shaft is mounted on the second linkage support shaft, and the other end of the reset elastic element is fastened to the assembly cavity shell. An operating handle is also included, with one end passing through the grip frame and connected to the other end of the turntable. The operating handle extends into or out of the assembly cavity shell to rotate the linkage turntable. The turntable drives the first linkage support shaft to slide, changing the relative position between the sliding plate and the grounding base plate. This causes multiple sets of moving claws to open or close synchronously relative to multiple sets of fixed claws, thereby installing the grounding device on the low-voltage branch switch output line. This enhances the connection stability with the low-voltage branch switch output line. The structure is simple, easy to repair and maintain, and ensures safe and stable operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the internal assembly structure of the grounding device for a low-voltage branch switch according to an embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1 The image shows an embodiment of the structure of the present invention for a low-voltage branch switch.

[0019] The grounding device structure for a low-voltage branch switch in this embodiment of the invention includes: a grip housing 1, which includes a grip frame 11 and an assembly cavity 12 extending from the grip frame 11; a grounding base plate 21 installed at the open end of the assembly cavity 12; multiple sets of fixed claws 22 fastened to the grounding base plate 21; a sliding plate 31 installed in the assembly cavity 12, which is provided with multiple sets of movable claws 32, and also has a first linkage support shaft 33 and a second linkage support shaft 34; a turntable 4 rotatably connected in the assembly cavity 12, one end of which is rotatably connected to the first linkage support shaft 33; a reset elastic member 5, one end of which is installed on the second linkage support shaft 34, and the other end of which is fastened to the assembly cavity 12; and an operating handle 6, one end of which passes through the grip frame 11 and is connected to the other end of the turntable 4.

[0020] Specifically: the operating handle 6 extends into or out of the assembly cavity shell 12 to rotate the linkage turntable 4. The turntable 4 drives the first linkage support shaft 33 to slide and change the relative position between the sliding plate 31 and the grounding base plate 21, so that multiple sets of moving claws 32 open or close synchronously in correspondence with multiple sets of fixed claws 22, in order to install the grounding device on the low-voltage branch switch output line.

[0021] In a specific implementation, the grip housing 1 includes a grip frame 11 and an assembly cavity housing 12. The assembly cavity housing 12 extends from the grip frame 11 and has an internal accommodating cavity for assembling components. In this embodiment, the assembly cavity housing 12 is made of nylon material, and the grip frame 11 is made of fiberglass material.

[0022] The grip frame 11 includes a crossbeam 110 connected to the mounting cavity shell 13 and a frame surrounding the outer periphery of the crossbeam 110. In this embodiment, one end of the operating handle 6 passes through the crossbeam 110 and is connected to the opposite end of the turntable 4.

[0023] The operating handle 6 includes an operating handle body 61 and a connecting rod 62 connected to the operating handle body 61. One end of the connecting rod 62 passes through the crossbeam 110 and is rotatably connected to the turntable 4.

[0024] Furthermore, a grounding base plate 21 is installed at the open end of the assembly cavity shell 12. The grounding base plate 21 is strip-shaped and fixed relative to the assembly cavity shell 12. The function of the grounding base plate 21 is to provide fixed support and grounding function, ensuring the stability of the device and electrical safety. Multiple sets of fixed claws 22 are equidistantly installed on the grounding base plate 21. In this embodiment, the multiple sets of fixed claws 22 are set into three sets, each made of brass material, and the three sets of fixed claws 22 are equidistantly arranged.

[0025] The sliding plate 31 is installed inside the assembly cavity shell 12. The sliding plate 31 and the grounding base plate 21 are adjacent to each other. The sliding plate 31 can slide back and forth relative to the grounding base plate 21. Its function is to drive the multiple sets of moving claws 32 on it to slide synchronously through the sliding of the sliding plate 31.

[0026] In this embodiment, the multiple sets of moving claws 32 are also set into three sets, each made of brass material. The three sets of moving claws 32 are equidistantly arranged. The sliding plate 31 and the three sets of moving claws 32 on it are slidably adjustable, which can switch between different working states and also has a grounding function, and can maintain the stability of electrical connection during dynamic adjustment.

[0027] In this embodiment, the sliding plate 31 includes: a sliding plate body 317 and a first connecting plate 318 and a second connecting plate 319 respectively protruding on one side of the sliding plate body 317. A retaining groove 310 is formed between the first connecting plate 318 and the second connecting plate 319. A first linkage support shaft 33 is mounted on the first connecting plate 318, and a second linkage support shaft 34 is mounted on the second connecting plate 319.

[0028] In practice, the ends of multiple sets of moving claws 32 and multiple sets of fixed claws 22 extend from the openings of the assembly cavity 12 to the outside of the assembly cavity 12. When the sliding plate 31 slides and changes its relative position with the grounding base plate 21, the multiple sets of moving claws 32 and multiple sets of fixed claws 22 can form a three-in-one structure during dynamic movement. In this embodiment, when the multiple sets of moving claws 32 and multiple sets of fixed claws 22 close synchronously in a one-to-one correspondence, a clamp structure with a narrow front end is formed, and an opening for clamping wires is formed between the moving claws 32 and the fixed claws 22, correspondingly clamping the three outgoing wires of the low-voltage branch switch.

[0029] Furthermore, the function of the turntable 4 is to achieve linkage control through rotation, driving multiple sets of moving claws 32 to perform opening and closing actions. The turntable 4 includes: a fixed rotating shaft end 41 and two linkage ends 42 respectively connected to the fixed rotating shaft end 41. Each linkage end 42 has an oblong hole. The first linkage support shaft 33 is installed in one of the oblong holes, and the end of the operating handle 6 connecting rod 62 is installed in the other oblong hole. In this embodiment, the side connected to the operating handle 6 is inserted into the linkage end 42 and limited by the retaining groove 310.

[0030] Furthermore, the function of the operating handle 6 is to allow the operator to apply force and transmit operating instructions. The operating handle 6 is made of fiberglass material, which has a certain strength and insulation, making it easy to hold and ensuring safety.

[0031] Furthermore, the function of the reset elastic element 5 is to provide reset power for the sliding plate 31 and the three sets of moving claws 32, so that the sliding plate 31 returns to its initial position after its operation, ensuring cyclic operation. In practice, one end of the reset elastic element 5 is mounted on the second linkage support shaft 34, and the other end of the reset elastic element 5 is fastened to the assembly cavity shell 12.

[0032] Preferably, it also includes: an anti-accidental operation locking nut 7, which is detachably connected to the frame of the handle frame 11, and the position of the anti-accidental operation locking nut 7 corresponds to the position of the operating handle body 61. The function of the anti-accidental operation locking nut 7 is to lock the state of the grounding device structure used for the low-voltage branch switch, prevent unexpected operational changes, ensure operational safety and stability, and avoid malfunctions caused by misoperation. Preferably, it also includes: a monitoring unit for monitoring the synchronous opening or closing of multiple sets of moving claws 32 relative to multiple sets of fixed claws 22 in a one-to-one correspondence, and an instantaneous arc extinguishing unit for ensuring that the grounding device is installed on the low-voltage branch switch output line without residual charge.

[0033] In this embodiment, the monitoring unit can be a pressure sensor and / or an audible and visual component: a pressure sensor and an audible and visual component are installed on the grounding device to monitor the tightness of the installation, and an indicator light illuminates when the contact resistance is less than a specified threshold. The instantaneous arc-extinguishing unit can be a varistor and a ceramic arc-extinguishing grid. The instantaneous arc-extinguishing unit ensures that there is no residual charge when the grounding wire is installed.

[0034] In this embodiment of the invention, the grounding device structure for a low-voltage branch switch is implemented such that, in specific implementation, the connecting rod 62 of the operating handle 6 is pulled out of the assembly cavity shell 12, and the linkage end 42 connected to one side of the operating handle 6 slides out of the retaining groove 310 to release the limit, and the reset elastic element 5 provides reset power to the sliding plate 31 and the three sets of moving claws 32. The turntable 4 rotates around the fixed rotating shaft end 41 as the axis. This causes the multiple sets of moving claws 32 to open synchronously relative to the multiple sets of fixed claws 22, and the wiring clamp is installed on the low-voltage branch switch output line. Immediately afterwards, the operating handle 6 is operated in the reverse order of the above steps. When the turntable 4 rotates, it further pulls the first linkage support shaft 33 to slide and change the relative position between the sliding plate 31 and the grounding base plate 21, so that the multiple sets of moving claws 32 close synchronously relative to the multiple sets of fixed claws 22 until the low-voltage branch switch output line is clamped.

[0035] During this process, the tightness between the stationary and moving claws is monitored by pressure sensors and audio-visual components. An indicator light illuminates when the contact resistance is less than a specified threshold. An anti-accidental-operation locking nut 7 is used to lock the grounding device, preventing unauthorized disconnection of the grounding.

[0036] The grounding device structure for low-voltage branch switches in this embodiment of the invention is suitable for low-voltage power distribution systems, especially for the safe grounding operation of low-voltage branch switches. It can be widely used in the renovation and maintenance of low-voltage power distribution systems in urban power grids, industrial parks, residential communities and other places.

[0037] The grounding device structure for a low-voltage branch switch according to the present invention has the following beneficial effects: The grounding device structure for a low-voltage branch switch includes: a handle housing, the handle housing including: a handle frame and an assembly cavity extending from the handle frame; a grounding base plate installed at the open end of the assembly cavity; multiple sets of fixed claws fastened to the grounding base plate; a sliding plate installed in the assembly cavity, the sliding plate being provided with multiple sets of movable claws, and the sliding plate also being provided with a first linkage support shaft and a second linkage support shaft; a turntable rotatably connected in the assembly cavity, one end of the turntable being rotatably connected to the first linkage support shaft; and a reset elastic element, one of which... The first linkage support shaft is mounted on the second linkage support shaft, and the other end of the reset elastic element is fastened to the assembly cavity shell. An operating handle is also included, with one end passing through the grip frame and connected to the other end of the turntable. The operating handle extends into or out of the assembly cavity shell to rotate the linkage turntable. The turntable drives the first linkage support shaft to slide, changing the relative position between the sliding plate and the grounding base plate. This causes multiple sets of moving claws to open or close synchronously relative to multiple sets of fixed claws, thereby installing the grounding device on the low-voltage branch switch output line. This enhances the connection stability with the low-voltage branch switch output line. The structure is simple, easy to repair and maintain, and ensures safe and stable operation.

Claims

1. A grounding device structure for a low-voltage branch switch, characterized in that, include: A grip housing, the grip housing comprising: a grip frame and a mounting cavity extending from the grip frame; A grounding base plate installed at the open end of the assembly cavity shell; Multiple sets of fixed claws are fastened to the grounding base plate; A sliding plate is installed in the assembly cavity shell, and the sliding plate is provided with multiple sets of moving claws. The sliding plate is also provided with a first linkage support shaft and a second linkage support shaft. A turntable is rotatably connected in the assembly cavity shell, and one end of the turntable is rotatably connected to the first linkage support shaft; A reset elastic element, one end of which is mounted on the second linkage support shaft, and the opposite end of which is fastened to the assembly cavity shell; and An operating handle, one end of which passes through the grip frame and connects to the opposite end of the turntable, wherein: The operating handle extends into or pulls out of the assembly cavity to cause the turntable to rotate. The turntable drives the first linkage support shaft to slide and change the relative position between the sliding plate and the grounding base plate, so that the multiple sets of moving claws open or close synchronously relative to the multiple sets of fixed claws, so as to install the grounding device on the low-voltage branch switch output line.

2. The grounding device structure for a low-voltage branch switch as described in claim 1, characterized in that, The grip frame includes a crossbeam connected to the assembly cavity shell and a frame surrounding the outer periphery of the crossbeam. The operating handle includes an operating handle body and a connecting rod connected to the operating handle body, with one end of the connecting rod passing through the crossbeam and rotatably connected to the turntable.

3. The grounding device structure for a low-voltage branch switch as described in claim 2, characterized in that, Also includes: An anti-accidental locking nut is provided, which is detachably connected to the frame and is positioned corresponding to the position of the operating handle body.

4. The grounding device structure for a low-voltage branch switch as described in claim 1, characterized in that, The sliding plate includes: a sliding plate body and a first connecting plate and a second connecting plate respectively protruding from one side of the sliding plate body, a retaining groove being formed between the first connecting plate and the second connecting plate, a first linkage support shaft being mounted on the first connecting plate, and a second linkage support shaft being mounted on the second connecting plate.

5. The grounding device structure for a low-voltage branch switch as described in claim 4, characterized in that, The turntable includes: a fixed rotating shaft end and two linkage ends respectively connected to the fixed rotating shaft end. The two linkage ends are respectively provided with waist-shaped holes. The first linkage support shaft is installed in one of the waist-shaped holes, and one end of the operating handle is installed in the other waist-shaped hole. The linkage end connected to the operating handle is limited by the retaining groove.

6. The grounding device structure for a low-voltage branch switch as described in claim 1, characterized in that, The ends of the multiple sets of moving claws and the multiple sets of fixed claws extend from the opening end of the assembly cavity shell to the outside of the assembly cavity shell.

7. The grounding device structure for a low-voltage branch switch as described in claim 6, characterized in that, The multiple sets of moving jaws and the multiple sets of fixed jaws are equidistantly arranged; the multiple sets of moving jaws and the multiple sets of fixed jaws are made of brass material; The assembly cavity shell is made of nylon material, and the grip frame and the operating handle are respectively made of glass fiber material.

8. The grounding device structure for a low-voltage branch switch as described in claim 7, characterized in that, The multiple sets of moving claws and the multiple sets of fixed claws are designed as a three-in-one structure, corresponding to clamp the three outgoing lines of the low-voltage branch switch.

9. The grounding device structure for a low-voltage branch switch as described in claim 1, characterized in that, Also includes: A monitoring unit for monitoring the synchronous opening or closing of the multiple sets of moving claws relative to the multiple sets of fixed claws, and an instantaneous arc-extinguishing unit for ensuring that the grounding device is installed on the low-voltage branch switch output line without residual charge.

10. The grounding device structure for a low-voltage branch switch as described in claim 9, characterized in that, The instantaneous arc-extinguishing unit includes a varistor and a ceramic arc-extinguishing grid.

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