Folding electric grounding device

Abstract

The utility model belongs to the technical field of grounding devices, and discloses a folding type electric grounding device which can drive a grounding rod to be close to or away from a contact network and comprises a fixing frame, a rotating mechanism and a supporting assembly, one end of the rotating mechanism is arranged on the fixing frame and can rotate relative to the fixing frame, and the supporting assembly is arranged at the other end of the rotating mechanism and can rotate relative to the fixing frame. The rotating mechanism is used for being connected with the grounding rod and at least comprises a rod hanging state and a rod picking state, in the rod hanging state, the rotating mechanism extends out of the fixing frame, the grounding rod can be hooked to the contact net, in the rod picking state, the rotating mechanism is retracted to one side of the fixing frame, and the grounding rod is separated from the contact net. According to the utility model, manual operation can be avoided, the operation space is reduced, the position of the grounding rod is ensured not to change when the ground wire is picked and hung, and the grounding reliability and the safety of picking and placing the grounding rod are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding devices, in particular to a foldable electric grounding device. Background Art

[0002] According to the safety requirements of the corresponding maintenance work of the railway EMU, the grounding device needs to be able to control the grounding rod to rotate back and forth at a certain angle, and to realize the operation of grounding and removing the grounding wire. Specifically, it is necessary to display whether the wire is removed or hung in place through an indicator light, and to ensure the interlocking control of the grounding device and the disconnector operation of the contact network, so as to avoid certain accidents caused by human factors such as negligence and mental fatigue of the staff. In the prior art, the grounding rod is generally lifted and retracted manually to realize the connection and removal of the ground wire, which has certain safety risks. In addition, there are also accessories such as stainless steel pipes and labeled aluminum hooks that are processed into hook head components, and the motor drives the forward and reverse rotation to control its movement, so as to form a simple rotary grounding device, but this type of grounding device not only cannot timely feedback the situation of picking and hanging, but also cannot remain in place after overlapping or disconnecting the contact network, and will occupy a large working space. Therefore, how to avoid manual work, reduce the working space, and ensure that the position of the grounding rod will not change when picking and hanging the ground wire, and improve the grounding reliability and the safety of taking and placing the grounding rod are the problems that people in this field need to solve. Utility Model Content

[0003] The utility model aims to provide a foldable electric grounding device to avoid manual work, reduce the working space, ensure that the position of the grounding rod does not change when the ground wire is removed or hung, and improve the grounding reliability and the safety of taking and placing the grounding rod.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The foldable electric grounding device can drive the grounding rod to move closer to or away from the contact network, including:

[0006] A fixing frame, a rotating mechanism and a supporting assembly, wherein one end of the rotating mechanism is arranged on the fixing frame and can rotate relative to the fixing frame, and the supporting assembly is installed on the other end of the rotating mechanism and is used to connect the grounding rod;

[0007] The rotating mechanism includes at least a hanging rod state and a removing rod state. In the hanging rod state, the rotating mechanism extends out of the fixing frame, and the grounding rod can be hooked on the contact network. In the removing rod state, the rotating mechanism is retracted to one side of the fixing frame, and the grounding rod is detached from the contact network.

[0008] Optionally, it also includes a motor and a coupling flange, both of which are arranged on the fixing frame, and the output shaft of the motor is connected to the input end of the coupling flange, and the output end of the coupling flange is connected to the rotating mechanism.

[0009] As an option, a hanging rod limit switch and a rod removing limit switch are provided on the connecting flange. When the rotating mechanism triggers the hanging rod limit switch, the rotating mechanism switches to the hanging rod state and the position no longer changes. When the rotating mechanism triggers the rod removing limit switch, the rotating mechanism switches to the rod removing state and the position no longer changes.

[0010] Optionally, a first connecting sleeve is provided at the output end of the coupling flange, and the first connecting sleeve is sleeved on the outer side of the rotating mechanism.

[0011] Optionally, the rotating mechanism includes a first rotating arm, a second connecting sleeve and a second rotating arm, the first rotating arm is connected to the connecting flange, the second connecting sleeve is sleeved on the outside of the second rotating arm and is rotatably connected to the first rotating arm, and the support assembly is arranged on the second rotating arm.

[0012] Optionally, the rotating mechanism further includes a connecting assembly, which includes a connecting rod, a connecting plate and an arc-shaped member, wherein one end of the connecting rod is rotatably connected to the fixed frame, and the other end is rotatably connected to the connecting plate, one end of the arc-shaped member is rotatably connected to the second connecting sleeve, and the other end is also rotatably connected to the connecting plate, and the connecting plate is also rotatably connected to the first rotating arm.

[0013] Optionally, a first avoidance channel is provided on the first rotating arm for avoiding the connecting plate.

[0014] Optionally, a second avoidance channel is provided on the second connecting sleeve for avoiding the arc-shaped member.

[0015] Optionally, in the hanging rod state, the first rotating arm and the second rotating arm are located on the same straight line and are perpendicular to the fixed frame; in the unhooking rod state, the first rotating arm and the second rotating arm are parallel to each other and are both parallel to the fixed frame.

[0016] As an option, the support assembly includes a connecting portion, a supporting portion and a connecting piece, the connecting portion is connected to the rotating mechanism, the grounding rod is placed on the supporting portion, and the supporting portion is connected to the connecting portion through the connecting piece.

[0017] Beneficial effects of the utility model:

[0018] The setting of the fixed frame in the utility model ensures the stability of the whole device during use, and also facilitates the operator to safely take and place the grounding rod on the fixed frame. Specifically, one end of the rotating mechanism is set on the fixed frame, and the other end is provided with a support assembly to connect the grounding rod, and the rotating mechanism can rotate relative to the fixed frame, so that the operator only needs to install the grounding rod on the support assembly to change the position of the grounding rod under the action of the rotating mechanism. Specifically, the rotating mechanism at least includes a hanging rod state and a detaching rod state. In the hanging rod state, the rotating mechanism extends out of the fixed frame, so that the grounding rod is hooked on the contact network to complete the grounding overlap operation. In the detaching rod state, the rotating mechanism can be retracted to one side of the fixed frame to effectively utilize the working space, and the grounding rod is separated from the contact network, which is convenient for the operator to complete the retraction of the grounding rod at the fixed frame, ensuring their personal safety. In the setting of the two states, it can be ensured that the position of the grounding rod will not change when the ground wire is detached or hung, which can improve the grounding reliability and the safety of the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first isometric schematic diagram of the foldable electric grounding device according to an embodiment of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the foldable electric grounding device according to the embodiment of the utility model;

[0021] Figure 3 is a side view schematic diagram of a foldable electric grounding device according to an embodiment of the utility model;

[0022] Figure 4 is a top view schematic diagram of a foldable electric grounding device according to an embodiment of the utility model;

[0023] Figure 5 It is a second isometric schematic diagram of the foldable electric grounding device according to the embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the foldable electric grounding device according to the embodiment of the utility model in the state of removing the pole;

[0025] Figure 7 It is a structural schematic diagram of the first rotating arm in the foldable electric grounding device according to an embodiment of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the second connecting sleeve in the foldable electric grounding device according to the embodiment of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of a support assembly in a foldable electric grounding device described in an embodiment of the utility model.

[0028] In the figure:

[0029] 10-fixed frame; 20-motor; 30-coupling flange; 40-rotating mechanism; 50-support assembly;

[0030] 301-first connecting sleeve; 401-connecting column; 41-first rotating arm; 42-second connecting sleeve; 43-second rotating arm; 44-connecting assembly; 441-connecting rod; 442-connecting plate; 443-arc-shaped member;

[0031] 411 - rotating arm body; 412 - first ear plate; 413 - limiting plate; 414 - first through hole; 415 - first avoidance channel;

[0032] 421-connecting body; 422-second ear plate; 423-second through hole; 424-connecting hole; 425-second avoidance channel;

[0033] 51-connecting part; 52-supporting part; 53-connecting piece; 511-cavity; 512-side panel. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the description of the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] According to the safety requirements of the corresponding maintenance work of the railway EMU, the grounding device needs to be able to control the grounding rod to rotate back and forth at a certain angle, and to realize the operation of grounding and removing the grounding wire. Specifically, it is necessary to display whether the wire is removed or hung in place through an indicator light, and to ensure the interlocking control of the grounding device and the disconnector operation of the contact network, so as to avoid certain accidents caused by human factors such as negligence and mental fatigue of the staff. In the prior art, the grounding rod is generally lifted and retracted manually to realize the connection and removal of the ground wire, which has certain safety risks. In addition, there are also accessories such as stainless steel pipes and labeled aluminum hooks that are processed into hook head components, and the motor drives the forward and reverse rotation to control its movement, so as to form a simple rotary grounding device, but this type of grounding device not only cannot timely feedback the situation of picking and hanging, but also cannot remain in place after overlapping or disconnecting the contact network, and will occupy a large working space. Therefore, how to avoid manual work, reduce the working space, and ensure that the position of the grounding rod will not change when picking and hanging the ground wire, and improve the grounding reliability and the safety of taking and placing the grounding rod are the problems that people in this field need to solve.

[0038] The technical solution of this embodiment is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0039] like Figure 1-Figure 9 As shown, this embodiment provides a foldable electric grounding device, which can drive the grounding rod to approach or move away from the contact network, including a fixed frame 10, a rotating mechanism 40 and a supporting assembly 50. One end of the rotating mechanism 40 is arranged on the fixed frame 10 and can rotate relative to the fixed frame 10. The supporting assembly 50 is installed on the other end of the rotating mechanism 40 and is used to connect the grounding rod. The rotating mechanism 40 includes at least a hanging rod state and a unhooking rod state. In the hanging rod state, the rotating mechanism 40 extends out of the fixed frame 10, and the grounding rod can be hooked on the contact network. In the unhooking rod state, the rotating mechanism 40 is retracted to one side of the fixed frame 10, and the grounding rod is detached from the contact network.

[0040] Specifically, the setting of the fixing frame 10 in this embodiment ensures the stability of the entire device during use, and also facilitates the operator to safely take and place the grounding rod on the fixing frame 10. Specifically, one end of the rotating mechanism 40 is set on the fixing frame 10, and the other end is provided with a support assembly 50 to connect the grounding rod, and the rotating mechanism 40 can rotate relative to the fixing frame 10, so that the operator only needs to install the grounding rod on the support assembly 50 to achieve the position change of the grounding rod under the action of the rotating mechanism 40. Specifically, the rotating mechanism 40 includes at least a hanging rod state and a detaching rod state. In the hanging rod state, the rotating mechanism 40 extends out of the fixing frame 10, so that the grounding rod is hooked on the contact network to complete the grounding overlap operation. In the detaching rod state, the rotating mechanism 40 can be retracted to one side of the fixing frame 10 to effectively utilize the working space, and the grounding rod is separated from the contact network, so that the operator can complete the retrieval of the grounding rod at the fixing frame 10, ensuring their personal safety, and under the setting of the two states, it can be ensured that the position of the grounding rod will not change when the ground wire is detached or hung, which can improve the grounding reliability and the safety of the operation process.

[0041] The specific structure of the foldable electric grounding device in this embodiment is described below.

[0042] like Figure 1-Figure 4 As shown, the foldable electric grounding device in this embodiment includes a fixed frame 10, a motor 20, a coupling flange 30, a rotating mechanism 40 and a supporting assembly 50. Optionally, the fixed frame 10 is arranged on the ground, and in this embodiment, the fixed frame 10 is a three-layer working platform made of angle steel, so as to achieve overlapping connection between the grounding rod and the contact network from bottom to top. Specifically, the motor 20 and the coupling flange 30 are both arranged on the fixed frame 10, and the output shaft of the motor 20 is connected to the input end of the coupling flange 30, and the output end of the coupling flange 30 is connected to the rotating mechanism 40, so as to drive the rotating mechanism 40 to rotate relative to the fixed frame 10. Furthermore, one end of the rotating mechanism 40 is arranged on the fixed frame 10 through the coupling flange 30, so that it can rotate relative to the fixed frame 10 under the drive of the coupling flange 30, and the supporting assembly 50 is installed at the other end of the rotating mechanism 40, which is used to connect the grounding rod and make the grounding rod close to or away from the contact network under the rotation effect of the rotating mechanism 40. Combined with Figure 5 and Figure 6 As shown, the rotating mechanism 40 in this embodiment includes at least a hanging pole state and a removing pole state. In the hanging pole state, the rotating mechanism 40 extends out of the fixing frame 10, and at this time the grounding pole can be hooked on the contact network in the hanging pole position, thereby realizing grounding; in the removing pole state, the rotating mechanism 40 is retracted to one side of the fixing frame 10 in the removing pole position, at which time the grounding pole is detached from the contact network, and the operator can take away the grounding pole, thereby realizing the automatic grounding operation of the grounding pole under electric drive to connect to the contact network or detach from the contact network, thereby improving space utilization and replacing manual operations.

[0043] like Figure 5 and Figure 6 As shown, specifically, in this embodiment, the motor 20 adopts a reduction motor, so that the motor 20 can drive the coupling flange 30 to rotate, and then use the coupling flange 30 to drive the rotating mechanism 40 to rotate synchronously. Exemplarily, the reducer uses a two-stage worm gear reducer with a self-locking function, and the output speed of the reducer is 1R / MIN, and the maximum output torque is 1300N·m, which is used to generate a driving force and perform forward and reverse rotation movements so that the grounding rod can slowly swing to the hanging rod position and the unhooking rod position. Exemplarily, in this embodiment, when the system is powered off, the handle of the manual input shaft of the reducer can also be used to manually crank the reducer to achieve the rotation of the reducer, thereby achieving the removal of the grounding rod, which does not affect the train leaving the depot while ensuring the personal safety of the operators and the safety of the equipment during the unhooking process.

[0044] Optionally, in this embodiment, a rod hanging limit switch and a rod removing limit switch are provided on the coupling flange 30. When the rotating mechanism 40 triggers the rod hanging limit switch, the rotating mechanism 40 switches to the rod hanging state and the position does not change, thereby ensuring that the grounding rod can be stably connected to the contact network. Similarly, when the rotating mechanism 40 triggers the rod removing limit switch, the rotating mechanism 40 switches to the rod removing state and the position does not change, thereby facilitating the operator to remove the grounding rod from the support assembly 50. Exemplarily, the positions of the rod hanging limit switch and the rod removing limit switch can be set as needed to ensure that the hook of the grounding rod can be accurately removed from the contact network. Specifically, in order to improve the reliable grounding between the grounding rod hook and the contact network copper wire, the trigger point of the two limit switches can be set to the position of 5mm of the pressure block on the contact limit switch of the rotating mechanism 40, and a reset spring is set on the two limit switches, thereby ensuring that the contact pressure block can return to its original position under the action of the reset spring, in preparation for the next detection. Combined with Figure 1 and Figure 5 As shown, optionally, the output end of the coupling flange 30 is provided with a first connection sleeve 301, and the first connection sleeve 301 is sleeved on the outside of the rotating mechanism 40, so as to ensure that the rotating mechanism 40 can rotate relative to the fixing frame 10 under the drive of the coupling flange 30. Exemplarily, the output end of the coupling flange 30 is about 5.8 meters from the ground.

[0045] Specifically, in this embodiment, the rotating mechanism 40 includes a first rotating arm 41, a second connecting sleeve 42, a second rotating arm 43 and a connecting assembly 44, wherein the connecting assembly 44 includes a connecting rod 441, a connecting plate 442 and an arc-shaped member 443, and the rotating mechanism 40 is further provided with a connecting column 401. Optionally, one end of the first rotating arm 41 is connected to the output end of the coupling flange 30, that is, the first connecting sleeve 301 is sleeved on the outer side of one end of the first rotating arm 41, so as to achieve a stable connection between the rotating mechanism 40 and the coupling flange 30. Further, the second connecting sleeve 42 is sleeved on the outer side of the second rotating arm 43 and is rotationally connected to the other end of the first rotating arm 41, and the supporting assembly 50 is arranged at one end of the second rotating arm 43 away from the first rotating arm 41, thereby the position of the grounding rod on the supporting assembly 50 can be changed through the rotational connection between the second rotating arm 43 and the first rotating arm 41, and the rotational connection between the first rotating arm 41 and the coupling flange 30. Exemplarily, the rotation angle of the first rotating arm 41 relative to the fixing frame 10 ranges from about 0-90° (±2°), and the longest working length of the first rotating arm 41, the second connecting sleeve 42 and the second rotating arm 43 when they are located on the same straight line is about 2000 mm.

[0046] Further, one end of the connecting rod 441 in the connecting assembly 44 is rotatably connected to the fixing frame 10, and the other end is rotatably connected to the connecting plate 442, one end of the arc-shaped member 443 is rotatably connected to the second connecting sleeve 42, and the other end is also rotatably connected to the connecting plate 442, and the connecting plate 442 is also rotatably connected to the first rotating arm 41, so that the extension and retraction of the rotating mechanism 40 on the fixing frame 10 can be realized. Specifically, the connecting column 401 is arranged on the fixing frame 10 and is arranged on the same side as the output end of the coupling flange 30, and the connecting rod 441 is rotatably connected to the connecting column 401 to avoid interference with the first rotating arm 41 when the coupling flange 30 drives it to rotate, and can be combined with the connecting plate 442 and the arc-shaped member 443 to support the first rotating arm 41 and the second rotating arm 43. Exemplarily, in the hanging state, the first rotating arm 41 and the second rotating arm 43 are located on the same straight line and are perpendicular to the fixed frame 10. At this time, the grounding rod can be connected to the contact network to achieve the grounding effect; in the unhooking state, the first rotating arm 41 and the second rotating arm 43 can be arranged parallel to each other under the action of the connecting component 44, and the first rotating arm 41 and the second rotating arm 43 are both arranged parallel to the fixed frame 10 and retracted to one side of the fixed frame 10 to achieve the taking and placing of the grounding rod. Exemplarily, when the rotating mechanism 40 is in the unhooking state, the rotating mechanism 40 is in a vertical state as a whole, and the first rotating arm 41 and the second rotating arm 43 are arranged in parallel. At this time, the rotation angle of the rotating mechanism 40 relative to the hanging state is about 90°.

[0047] like Figure 7As shown, the first rotating arm 41 includes a rotating arm body 411, a first ear plate 412 and a limiting plate 413, and a first through hole 414 and a first avoidance channel 415 are provided on the rotating arm body 411. Optionally, in this embodiment, the first rotating arm 41 is set as a rectangular cavity structure, one end of the rotating arm body 411 is connected to the first connecting sleeve 301, and two oppositely arranged first ear plates 412 are provided on the top of the other end of the rotating arm body 411, which are used to connect the second connecting sleeve 42. Optionally, in this embodiment, the first ear plate 412 and the rotating arm body 411 are an integrated structure, so as to ensure the mechanical strength of the first ear plate 412 and improve the stability of the connection between the first rotating arm 41 and the second connecting sleeve 42. Further, the bottom of one end of the rotating arm body 411 provided with the first ear plate 412 extends outwardly, and two opposite limiting plates 413 are used to support and limit the second connecting sleeve 42. Optionally, the pin passes through the connecting plate 442 and the first through hole 414 in sequence to rotatably connect the connecting plate 442 to the rotating arm body 411. Further, a first avoidance channel 415 is provided between the two limit plates 413 for avoiding the connecting plate 442 to avoid interference with it when it is retracted.

[0048] Combination Figure 5 and Figure 8 As shown, in this embodiment, the second connecting sleeve 42 includes a connecting body 421 and a second ear plate 422, and the connecting body 421 is provided with a second through hole 423, a connecting hole 424 and a second avoidance channel 425. Optionally, the connecting body 421 is also configured as a rectangular cavity structure, and the length of the connecting body 421 is less than the length of the first rotating arm 41. Further, two second ear plates 422 are arranged opposite to each other at the top of one end of the connecting body 421 close to the first rotating arm 41, and the bottoms of the two second ear plates 422 are connected by a fixing plate. Exemplarily, the two second ear plates 422 and the fixing plate are an integrated structure, and the whole is arranged on the connecting body 421 by welding, thereby improving the connection strength between the two. Specifically, the second ear plate 422 and the first ear plate 412 are connected by a pin to realize the rotation connection between the first rotating arm 41 and the second connecting sleeve 42.

[0049] Further, the connecting body 421 is provided with a second through hole 423. For example, the pin sequentially penetrates the arc-shaped member 443 and the second through hole 423 to rotatably connect the arc-shaped member 443 to the connecting body 421. Optionally, the connecting body 421 is also provided with a connecting hole 424 for connecting the second rotating arm 43. For example, after the connecting body 421 is sleeved on the outside of the second rotating arm 43, the pin sequentially penetrates the second rotating arm 43 and the connecting hole 424 to fix the second rotating arm 43 to the connecting body 421. Further, the bottom of the end of the second ear plate 422 of the connecting body 421 is provided with a second avoidance channel 425. Accordingly, the second rotating arm 43 is provided with a third avoidance channel. The second avoidance channel 425 is connected to the third avoidance channel for avoiding the arc-shaped member 443, so as to facilitate the retraction of the rotating mechanism 40 on the fixed frame 10. Accordingly, the second rotating arm 43 is also provided with a rectangular cavity structure.

[0050] Combination Figure 5 and Figure 6 As shown, in this embodiment, the connecting plate 442 is set as a T-shaped structure, and the two ends of the longer side of the T-shaped structure are rotatably connected to the connecting rod 441 and the arc-shaped member 443 respectively, and the shorter side of the T-shaped structure is rotatably connected to the first rotating arm 41, so as to realize the multi-angle rotation of the rotating mechanism 40. Exemplarily, the curvature of the arc-shaped member 443 can be set as needed. Further, the size of the first avoidance channel 415 is adapted to the size of the connecting plate 442, and the sizes of the second avoidance channel 425 and the third avoidance channel are both adapted to the size of the arc-shaped member 443. Exemplarily, the connecting rod 441 can be set as a length-retractable structure as needed to meet the requirements of the rotation range of the rotating mechanism 40, which will not be repeated here.

[0051] Combination Figure 5 and Fig. 9As shown, in this embodiment, the support assembly 50 includes a connecting portion 51, a supporting portion 52 and a connecting member 53, and the connecting portion 51 includes a cavity 511 and a side plate 512. Optionally, the connecting portion 51 is connected to the second rotating arm 43 of the rotating mechanism 40, and the grounding rod is placed on the supporting portion 52, and the supporting portion 52 is connected to the connecting portion 51 through the connecting member 53, so as to ensure the stable placement of the grounding rod on the second rotating arm 43, so that the grounding rod can rotate synchronously with the second rotating arm 43. Exemplarily, the cavity 511 in the connecting portion 51 is set as an internal cavity structure, and the upper and lower ends of the connecting member 53 are respectively penetrated through the top and bottom of the cavity 511, and the top of the connecting member 53 is connected to the bottom of the supporting portion 52, so as to achieve a stable connection between the supporting portion 52 and the connecting portion 51. Further, the side plates 512 are respectively extended on both sides of the opening side of the cavity 511, and the fasteners are sequentially penetrated through the side plates 512 and the second rotating arm 43 to fix the connecting portion 51 on the second rotating arm 43. Exemplarily, two support assemblies 50 are provided, and the two support assemblies 50 are arranged oppositely on two sides of the second rotating arm 43, so as to achieve stable placement of the grounding rod.

[0052] Working principle: first, the grounding rod is installed on the support assembly 50, and then the operator inputs the hanging rod signal, the motor 20 starts after reading the signal, and drives the first rotating arm 41 and the second rotating arm 43 to rotate through the coupling flange 30, so that the grounding rod rotates upward and gradually approaches the contact network, until the hanging rod limit switch on the coupling flange 30 is triggered and stops rotating to keep the position of the grounding rod unchanged. At this time, the rotating mechanism 40 is in the hanging rod state, the grounding rod is in the hanging rod position, and the grounding rod is reliably in contact with the contact network to complete the grounding action; then the operator inputs the removing rod signal, the motor 20 starts again after reading the signal, and drives the first rotating arm 41 and the second rotating arm 43 to rotate in the opposite direction through the coupling flange 30, so that the grounding rod rotates downward and gradually moves away from the contact network, until the removing rod limit switch on the coupling flange 30 is triggered and stops rotating to keep the position of the grounding rod unchanged. At this time, the rotating mechanism 40 is in the removing rod state, the grounding rod is in the removing rod position, the grounding rod leaves the contact network, and the operator can remove the grounding rod.

[0053] Specifically, the front end of the grounding rod adopts an epoxy resin glass fiber rectangular tube to ensure the insulation protection requirements, making the grounding process more reliable and safe, and the contact force of the grounding rod is greater than or equal to 70N. Further, the motor 20 adopts a self-locking motor structure to lock the position of the rotating mechanism 40. Therefore, the folding electric grounding device in this embodiment not only ensures the locking of the grounding rod in the hanging position and the unhooking position under the setting of the self-locking connection and unloading structure of the motor 20 to avoid position changes, but also can achieve two-level protection in the mode where the motor 20 is provided with manual adjustment to avoid equipment out of control. Exemplarily, the folding electric grounding device in this embodiment has a simple structure, is safe and reliable, and moves smoothly, has no impact on the contact network, and can complete the hanging or unhooking operation in about 20s. Further, the position of the grounding rod on the support assembly 50 is adjustable, and the height of the fixing frame 10 can be adjusted as needed. There is no requirement for the accuracy of the installation position of the entire device, which is easy to implement. Accordingly, during specific use, the foldable electric grounding device can be installed at both ends of the platform channel respectively, so that grounding operations can be performed on each column of the inspection warehouse.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A foldable electric grounding device, capable of driving the grounding rod close to or away from the contact network, characterized in that: include: A fixed frame (10), a rotating mechanism (40) and a supporting assembly (50), wherein one end of the rotating mechanism (40) is arranged on the fixed frame (10) and is capable of rotating relative to the fixed frame (10), and the supporting assembly (50) is installed on the other end of the rotating mechanism (40) and is used to connect the grounding rod; The rotating mechanism (40) includes at least a hanging rod state and a removing rod state. In the hanging rod state, the rotating mechanism (40) extends out of the fixing frame (10), and the grounding rod can be hooked on the contact network. In the removing rod state, the rotating mechanism (40) is retracted to one side of the fixing frame (10), and the grounding rod is detached from the contact network.

2. The foldable electric grounding device according to claim 1, characterized in that: It also includes a motor (20) and a coupling flange (30), wherein the motor (20) and the coupling flange (30) are both arranged on the fixing frame (10), and the output shaft of the motor (20) is connected to the input end of the coupling flange (30), and the output end of the coupling flange (30) is connected to the rotating mechanism (40).

3. The foldable electric grounding device according to claim 2, characterized in that: The coupling flange (30) is provided with a rod hanging limit switch and a rod removing limit switch. When the rotating mechanism (40) triggers the rod hanging limit switch, the rotating mechanism (40) switches to the rod hanging state and the position does not change. When the rotating mechanism (40) triggers the rod removing limit switch, the rotating mechanism (40) switches to the rod removing state and the position does not change.

4. The foldable electric grounding device according to claim 2, characterized in that: The output end of the coupling flange (30) is provided with a first connecting sleeve (301), and the first connecting sleeve (301) is sleeved on the outside of the rotating mechanism (40).

5. The foldable electric grounding device according to claim 2, characterized in that: The rotating mechanism (40) comprises a first rotating arm (41), a second connecting sleeve (42) and a second rotating arm (43); the first rotating arm (41) is connected to the connecting flange (30); the second connecting sleeve (42) is sleeved on the outside of the second rotating arm (43) and is rotatably connected to the first rotating arm (41); and the supporting assembly (50) is arranged on the second rotating arm (43).

6. The foldable electric grounding device according to claim 5, characterized in that: The rotating mechanism (40) further comprises a connecting assembly (44), wherein the connecting assembly (44) comprises a connecting rod (441), a connecting plate (442) and an arc-shaped member (443), wherein one end of the connecting rod (441) is rotatably connected to the fixing frame (10), and the other end is rotatably connected to the connecting plate (442), one end of the arc-shaped member (443) is rotatably connected to the second connecting sleeve (42), and the other end is also rotatably connected to the connecting plate (442), and the connecting plate (442) is also rotatably connected to the first rotating arm (41).

7. The foldable electric grounding device according to claim 6, characterized in that: The first rotating arm (41) is provided with a first avoidance channel (415) for avoiding the connecting plate (442).

8. The foldable electric grounding device according to claim 6, characterized in that: The second connecting sleeve (42) is provided with a second avoidance channel (425) for avoiding the arc-shaped member (443).

9. The foldable electric grounding device according to claim 5, characterized in that: In the pole hanging state, the first rotating arm (41) and the second rotating arm (43) are located on the same straight line and are perpendicular to the fixed frame (10); in the pole removing state, the first rotating arm (41) and the second rotating arm (43) are parallel to each other and are both parallel to the fixed frame (10).

10. The foldable electric grounding device according to any one of claims 1 to 9, characterized in that: The support assembly (50) comprises a connecting portion (51), a supporting portion (52) and a connecting piece (53); the connecting portion (51) is connected to the rotating mechanism (40); the grounding rod is placed on the supporting portion (52); and the supporting portion (52) is connected to the connecting portion (51) via the connecting piece (53).

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