Grounding rod with high safety performance for high-speed rail maintenance

Abstract

The utility model discloses a high-safety grounding rod for high-speed rail maintenance, which comprises an insulating operating rod and a wire clamp arranged on the insulating operating rod, the outer wall of the wire clamp is connected with a conducting strip through a bolt and a nut, the conducting strip is connected with an annealed copper wire, and one end, far away from the annealed copper wire, of the conducting strip is provided with a touch plate; the insulation operating rod is provided with a detection mechanism, when the conducting strip is screwed in place through the bolt, the touch plate drives the detection mechanism to send out a continuous prompt signal, and when the bolt is loosened, the prompt signal of the detection mechanism disappears. According to the utility model, through the arrangement of the detection mechanism, whether the bolt tightly presses the conducting strip can be detected, the state of the bolt can be continuously monitored in the use process of the grounding rod, and if the bolt is loosened, an operator can make a rapid emergency measure at the first time, so that the safety of the operator during the maintenance of a high-speed rail can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high - speed rail maintenance equipment, and particularly relates to a grounding rod for high - speed rail maintenance with high safety performance. Background Technique

[0002] When maintaining high - speed rail locomotives, a safety interlock system is adopted to ensure the safety of the locomotive maintenance process, generally meeting requirements such as preventing mis - pulling and mis - closing disconnectors, preventing random use of grounding rods, preventing closing disconnectors with ground wires, preventing hanging ground wires while energized, and preventing entering energized maintenance platforms by mistake. Currently, before maintenance, grounding is required through a grounding rod / bar.

[0003] The grounding reliability is directly related to personal safety during the maintenance process. Before grounding with a grounding rod, multiple inspections are required, such as whether the soft copper wire is firmly connected to the screw of the grounding rod without looseness, whether the soft copper wire is broken or damaged, whether there are cracks in the insulating operating rod, etc.; among them, whether the soft copper wire is firmly connected to the screw of the grounding rod without looseness is judged by manual screwing. Such a method has errors, and after inspection, the screw may become loose due to the shaking of the connection rod, and it cannot be detected in time when the connection rod is in use, posing a safety hazard. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a grounding rod for high - speed rail maintenance with high safety performance. By setting a detection mechanism, it can detect whether the bolt presses the conductive sheet tightly, and at the same time, it can continuously monitor the state of the bolt during the use of the grounding rod. If the bolt becomes loose, the operator can take prompt emergency measures immediately, which can greatly improve the safety of the operator during the maintenance of high - speed rails.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A grounding rod for high - speed rail maintenance with high safety performance includes an insulating operating rod and a wire clamp arranged on the insulating operating rod. A conductive sheet is connected to the outer wall of the wire clamp through bolts and nuts. The conductive sheet is connected with a soft copper wire, and a contact plate is arranged at the end of the conductive sheet far from the soft copper wire;

[0007] A detection mechanism is arranged on the insulating operating rod. When the bolt tightens the conductive sheet in place, the contact plate drives the detection mechanism to emit a continuous prompt signal. When the bolt becomes loose, the prompt signal of the detection mechanism disappears.

[0008] Furthermore, the detection mechanism includes a fixed sleeve, a transmission rod, an independent power supply, a signal source, and a contact switch. The fixed sleeve is fixedly sleeved outside the insulating operating rod. There is an accommodation cavity between the fixed sleeve and the insulating operating rod. The independent power supply, the contact switch, and the signal source are all arranged in the accommodation cavity, and the signal source also extends outside the accommodation cavity;

[0009] The middle part of the transmission rod is rotatably connected to one end of the fixed sleeve close to the wire clamp through an ear plate and a rotating shaft, and a reset member is provided on the rotating shaft;

[0010] The contact switch includes a contact piece, a first contact and a second contact. The contact piece is arranged at the first end of the transmission rod. A third contact and a fourth contact corresponding to the first contact and the second contact respectively are provided on the contact piece. The first contact and the second contact are respectively connected to the positive and negative electrodes of an independent power supply through wires;

[0011] When the conductive sheet is tightened in place by a bolt, the contact plate pushes the second end of the transmission rod. The transmission rod rotates around the rotating shaft. The first end of the transmission rod approaches and contacts the first contact and the second contact, so that the independent power supply, the first contact, the contact piece and the second contact form a closed circuit, and the signal source is electrically connected to the closed loop.

[0012] Further, the signal source includes an indicator light.

[0013] Further, the indicator light is a red LED lamp bead.

[0014] Further, the reset member is a torsion spring arranged outside the rotating shaft.

[0015] Further, the nut is a disc-shaped nut.

[0016] Further, the wire clamp is a double-spring wire clamp.

[0017] The beneficial effects of the present utility model are as follows:

[0018] By setting the detection mechanism, the present utility model can detect whether the bolt presses the conductive sheet tightly, and can also continuously monitor the state of the bolt during the use of the grounding rod. If the bolt is loose, the operator can take prompt emergency measures in the first time, which can greatly improve the safety of the operator during the maintenance of high-speed trains. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the grounding rod for high-speed train maintenance with high safety performance in the embodiment of the present utility model;

[0020] Figure 2 is Figure 1 the enlarged schematic diagram of the partial A in

[0021] Figure 3 is the circuit schematic diagram of the detection mechanism in this embodiment;

[0022] In the figure, 1 is an insulating operating rod; 2 is a wire clamp; 3 is a nut; 4 is a conductive sheet; 5 is a flexible copper wire; 6 is a fixing sleeve; 7 is a transmission rod; 8 is an independent power source; 9 is a signal source; 10 is a contact switch; 11 is a contact piece; 12 is a first contact; 13 is a second contact; 14 is a reset member; 15 is a contact plate. Detailed implementation mode

[0023] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0024] Refer to Figures 1 - 3 , the present utility model provides a technical solution:

[0025] Embodiment:

[0026] As Figures 1 - 3 shown, a grounding rod for high-speed rail maintenance with high safety performance includes an insulating operating rod 1 and a wire clamp 2 provided on the insulating operating rod 1. A conductive sheet 4 is connected to the outer wall of the wire clamp 2 through bolts and nuts 3. The conductive sheet 4 is connected to a flexible copper wire 5, and a contact plate 15 is provided at one end of the conductive sheet 4 away from the flexible copper wire 5;

[0027] A detection mechanism is provided on the insulating operating rod 1. When the conductive sheet 4 is tightened in place by bolts, the contact plate 15 drives the detection mechanism to emit a continuous prompt signal. When the bolts are loose, the prompt signal of the detection mechanism disappears.

[0028] The detection mechanism includes a fixing sleeve 6, a transmission rod 7, an independent power source 8, a signal source 9, and a contact switch 10. The fixing sleeve 6 is provided outside the insulating operating rod 1. There is an accommodation cavity between the fixing sleeve 6 and the insulating operating rod 1. The independent power source 8, the contact switch 10, and the signal source 9 are all arranged in the accommodation cavity, and the signal source 9 also extends outside the accommodation cavity;

[0029] The middle part of the transmission rod 7 is rotatably connected to one end of the fixing sleeve 6 close to the wire clamp 2 through an ear plate and a rotating shaft, and a reset member 14 is provided on the rotating shaft;

[0030] As Figure 2 shown, the contact switch 10 includes a contact piece 11, a first contact 12, and a second contact 13. The contact piece 11 is arranged at the first end of the transmission rod 7. The contact piece 11 is provided with a third contact and a fourth contact corresponding to the first contact 12 and the second contact 13 respectively. The first contact 12 and the second contact 13 are respectively connected to the positive and negative electrodes of the independent power source 8 through wires;

[0031] As Figure 3 shown, when the conductive sheet 4 is tightened in place by bolts, the contact plate 15 pushes the second end of the transmission rod 7, and the transmission rod 7 rotates around the rotating shaft. The first end of the transmission rod 7 approaches and contacts the first contact 12 and the second contact 13, so that the independent power supply 8, the first contact 12, the contact piece 11, and the second contact 13 form a closed circuit, and the signal source 9 is electrically (connected in series) to the closed loop.

[0032] The signal source 9 includes an indicator light.

[0033] The indicator light is a red LED lamp bead.

[0034] The reset member 14 is a torsion spring provided outside the rotating shaft. Wherein, the two ends of the torsion spring are respectively fixed to the rotating shaft and the ear plate.

[0035] The nut 3 is a disc nut 3.

[0036] The wire clamp 2 is a double-spring wire clamp 2.

[0037] Wherein, 1. To protect the independent power supply 8 and the indicator light to form a closed circuit, a protection resistor R is connected in this circuit. 2. The contact piece 11 and the third contact and the fourth contact thereon are movable parts, and the first contact 12 and the second contact 13 are fixed parts.

[0038] Working principle: Turn the nut 3, and the nut 3 pushes the conductive sheet 4 to closely adhere to the wire clamp 2. During this process, the contact plate 15 moves synchronously with the conductive sheet 4. When the contact plate 15 contacts the second end (the upper end in the figure) of the transmission rod 7, when the contact plate 15 continues to move, it drives the transmission rod 7 to rotate around the rotating shaft, and the first end (the lower end in the figure) of the transmission rod 7 moves in the direction approaching the first contact 12 and the second contact 13.

[0039] When the third contact and the fourth contact on the contact piece 11 respectively contact the first contact 12 and the second contact 13, the independent power supply 8, the first contact 12, the contact piece 11, the second contact 13, and the indicator light form a closed circuit. At this time, the indicator light is powered on to emit a red light source, indicating that the conductive sheet 4 is in place and the nut 3 has been tightened.

[0040] When the wire clamp 2 is clamped on the line of the part of the high-speed rail to be repaired, the indicator light continuously emits light, and the operator can operate with confidence. If the bolts become loose due to the twisting of the wire clamp 2 or the operating rod, the conductive sheet 4 is not pressed tightly by the nut 3. There is a displacement space at the second end of the transmission rod 7. At this time, the transmission rod 7 is reset around the rotating shaft under the action of the torsion spring, so that the first end of the transmission rod 7 moves in the direction away from the first contact 12 and the second contact 13, and the closed circuit is disconnected at this time. The indicator light goes out, and the operator can know that the grounding rod is in a failure state. At this time, the operator can take rapid emergency measures immediately, such as replacing the grounding rod.

[0041] The utility model can detect whether the bolt presses the conductive sheet by setting a detection mechanism. At the same time, the state of the bolt can be continuously monitored during the use of the grounding rod. If the bolt is loose, the operator can take prompt emergency measures in the first time, which can greatly improve the safety of the operator during the maintenance of high-speed trains.

[0042] The above are only the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And the changes and modifications made by those skilled in the art without departing from the spirit and scope of the utility model should all be within the protection scope of the appended claims of the utility model.

Claims

1. A grounding rod for high-speed rail maintenance with high safety performance, comprising an insulating operating rod and a wire clamp arranged on the insulating operating rod. A conductive sheet is connected to the outer wall of the wire clamp through bolts and nuts, and the conductive sheet is connected with a soft copper wire. It is characterized in that: One end of the conductive sheet away from the soft copper wire is provided with a contact plate; A detection mechanism is provided on the insulating operating rod. When the conductive sheet is tightened in place by bolts, the contact plate drives the detection mechanism to emit a continuous prompt signal. When the bolts are loose, the prompt signal of the detection mechanism disappears.

2. The grounding rod for high-speed rail maintenance with high safety performance according to claim 1, wherein: The detection mechanism includes a fixed sleeve, a transmission rod, an independent power source, a signal source, and a contact switch. The fixed sleeve is fixedly sleeved outside the insulating operating rod. There is an accommodation cavity between the fixed sleeve and the insulating operating rod. The independent power source, the contact switch, and the signal source are all arranged in the accommodation cavity, and the signal source also extends outside the accommodation cavity; The middle of the transmission rod is rotatably connected to one end of the fixed sleeve close to the wire clamp through an ear plate and a rotating shaft, and a reset member is arranged on the rotating shaft; The contact switch includes a contact piece, a first contact, and a second contact. The contact piece is arranged at the first end of the transmission rod. A third contact and a fourth contact corresponding to the first contact and the second contact respectively are arranged on the contact piece. The first contact and the second contact are respectively connected to the positive and negative electrodes of the independent power source through wires; When the conductive sheet is tightened in place by bolts, the contact plate pushes the second end of the transmission rod. The transmission rod rotates around the rotating shaft, and the first end of the transmission rod approaches and contacts the first contact and the second contact to form a closed circuit of the independent power source, the first contact, the contact piece, and the second contact. The signal source is electrically connected to the closed circuit.

3. The grounding rod for high-speed rail maintenance with high safety performance according to claim 2, characterized in that: The signal source includes an indicator light.

4. The grounding rod for high-speed rail maintenance with high safety performance according to claim 3, characterized in that: The indicator light is a red LED lamp bead.

5. The grounding rod for high-speed rail maintenance with high safety performance according to claim 2, wherein: The reset member is a torsion spring arranged outside the rotating shaft.

6. The grounding rod for high-speed rail maintenance with high safety performance according to claim 1, wherein: The nut is a disc-shaped nut.

7. The grounding rod for high-speed rail maintenance with high safety performance according to claim 1, characterized in that: The wire clamp is a double-spring type wire clamp.

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