Novel electricity testing device

Abstract

The utility model discloses a novel electricity testing device, belongs to the technical field of electricity and machinery, relates to a novel electricity testing device based on a parabolic method for electricity testing, adopts a mechanical principle, realizes automatic lifting of a metal electricity testing part, has the advantages of convenience in operation, safety in work and reliability, and overcomes the defects in the prior art. The novel electricity testing device is simple in structure and easy to manufacture. According to the technical scheme, the device comprises a rail clamping device, an electricity testing rod, a damper and a spring, the rail clamping device comprises a hand-screwed bolt, the device further comprises a support and a spring support, the electricity testing rod is of a telescopic structure formed by connecting a plurality of metal pipes in a sleeved mode, the electricity testing rod is connected with the support through the damper and can rotate with the support as a fulcrum, and the damper can slow down the rotating speed of the electricity testing rod. One end of the spring is fixed to the spring support, the other end of the spring is fixed to the electricity testing rod, and the electricity testing rod is in a vertical state when the rail clamping device is fixed to the head of the steel rail and the spring is contracted.

Description

Technical Field

[0001] This invention belongs to the field of mechanical and electrical technology, and relates to an electrical testing device that is easy to operate and safe and reliable in operation. Background Technology

[0002] When electrified railway overhead contact line equipment is de-energized for maintenance, it is usually necessary to test for voltage and ground the equipment before starting maintenance work to prevent accidental power outages or restorations, or injury to workers from induced current. Currently, there are two methods for voltage testing: The first is the throwing method, which involves manually throwing a soft metal wire with one end grounded onto the high-voltage equipment. If no high-voltage grounding occurs, the equipment is considered de-energized. This method is direct and reliable, but requires skilled operators. The second method is the electronic voltage detector, which uses a specialized testing tool made of electronic circuitry to determine if the equipment is de-energized. This method is more indirect than the throwing method and works well in the absence of electromagnetic interference.

[0003] In double-track electrified railway sections, de-energized equipment is often located close to non-energized equipment. The aforementioned wire-throwing method carries the safety risk of accidentally throwing the wire onto non-energized equipment due to improper operation. Using electronic voltage detectors presents the risk of electromagnetic interference causing de-energized equipment to indicate energization, and also poses the safety risk of energized equipment indicating no energization when testing in complex equipment areas. Given these unreliable voltage detection issues, developing a new type of voltage detector that is easy to operate and safe to use has become an essential task for technicians in this field. Summary of the Invention

[0004] This invention provides a novel voltage testing device. Based on the advantages of the ball-throwing method for voltage testing, it adopts a mechanical principle to realize the automatic lifting of the metal voltage testing component. It has the advantages of convenient operation, safe and reliable operation, thus overcoming the shortcomings of the prior art.

[0005] The technical solution adopted in this invention is:

[0006] A novel voltage testing device includes a rail clamp, a voltage testing rod, a spring, and a damper;

[0007] The rail clamp includes a hand-tightening bolt. The rail clamp body has a threaded hole, and the hand-tightening bolt is fitted into the threaded hole. The rail clamp is placed on the rail head, and the hand-tightening bolt is tightened to fix it to the rail head.

[0008] The rail clamp also includes a bracket and a spring support. The bracket is used to connect the voltage testing pole, and the spring support is used to connect the spring.

[0009] The voltage testing pole is a telescopic structure composed of multiple metal tubes connected together, with a voltage testing pole base at one end. Its structural principle is the same as that of a commonly used radio telescopic antenna, which will not be described in detail here.

[0010] The voltage testing pole and the support are connected by two dampers. The damper housing is fixedly connected to the support, and the damper rotation shaft is fixedly connected to the voltage testing pole base. In this way, the voltage testing pole can rotate with the support as the fulcrum, thereby realizing lifting and lowering. The damper can slow down the rotation speed of the voltage testing pole.

[0011] The damper is a commonly used product and is widely used in slow-closing and slow-lifting structures such as toilet seats and rice cooker lids, so it will not be described in detail here.

[0012] One end of the spring is fixed to the spring support, and the other end is fixed to the voltage testing pole through the clamp bracket. When the rail clamp is fixed to the horizontally placed rail head and the spring is contracted, the voltage testing pole will be in an upright state. When the voltage testing pole is manually pressed down, the spring is stretched. At this time, when the voltage testing pole is released, the spring will pull the voltage testing pole back to the upright state.

[0013] A new type of voltage testing device operates as follows: First, with the voltage testing pole shortened, the rail clamp is placed on the head of the rail, and the hand-tightened bolts are tightened to secure the rail head. Second, the operator manually presses down the voltage testing pole and extends it to a suitable length that allows access to the high-voltage equipment above the rail. Third, the operator releases and detaches from the voltage testing pole; under the combined action of the spring and damper, the voltage testing pole slowly rises to an upright position and contacts the high-voltage equipment. Fourth, if no high-voltage grounding discharge occurs, it is confirmed that the equipment is de-energized; if a high-voltage grounding discharge occurs, it is confirmed that the equipment is not de-energized. At this point, the operator has detached from the voltage testing device, ensuring the operator's safety.

[0014] The dismantling process is as follows: First, the operator manually shortens the voltage testing pole completely; second, the operator loosens the hand-tightening bolts and removes the rail clamp from the head of the rail, thus completing the dismantling.

[0015] Furthermore, the rail clamp, voltage testing rod, damper, and spring are made of metal materials, and the voltage testing device composed of them is a conductor as a whole. The voltage testing device composed of them has good conductivity under high voltage, so it is easy to determine whether the high-voltage equipment is de-energized during voltage testing.

[0016] Furthermore, two hand-tightening bolts are provided, which improves the stability of the connection between the rail clamp and the rail head.

[0017] Furthermore, the front end of the hand-tightening bolt has a disc-shaped structure, which improves the stability of the connection between the rail clamp and the rail head.

[0018] Furthermore, the rail clamp has a hollow structure in the middle, which reduces the weight of the parts.

[0019] Furthermore, the test pole base is provided with mounting holes on both sides, and the mounting holes are in shape that matches the rotating shaft of the damper. The two can be plugged in to achieve a fixed connection, which simplifies the assembly method.

[0020] Optionally, the voltage testing pole base and the damper rotating shaft can be fixedly connected by welding, thus ensuring a secure connection.

[0021] The beneficial effects of applying the technical solution of this invention are: it provides a simple, convenient, safe and reliable voltage testing device, saving operation time and improving work efficiency. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0023] Figure 1 This is a schematic diagram of a novel voltage testing device and its connection with a steel rail according to the present invention.

[0024] Figure 2 is a schematic diagram of the hand-tightening bolt structure of a novel voltage testing device according to the present invention.

[0025] Figure 3 is a schematic diagram of the damper and support structure and assembly of a novel voltage detection device according to the present invention.

[0026] Figure 4 This is a partial structural diagram of the voltage testing rod of a novel voltage testing device according to the present invention.

[0027] In the diagram, 1 – rail clamp; 2 – voltage test pole; 3 – damper; 4 – spring; 5 – clamp bracket; 6 – rail head; 11 – hand-tightening bolt; 12 – bracket; 13 – spring support; 21 – voltage test pole base. Detailed Implementation

[0028] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0029] like Figure 1As shown, a novel voltage testing device includes a rail clamp 1, a voltage testing rod 2, a damper 3, and a spring 4. The rail clamp 1 includes a hand-tightening bolt 11, and the rail clamp 1 body has a threaded hole. The hand-tightening bolt 11 is assembled into the threaded hole. Placing the rail clamp 1 on the rail head 6 and tightening the hand-tightening bolt 11 can fix the rail clamp 1 to the rail head 6. The rail clamp 1 also includes a bracket 12 and a spring support 13. The bracket 12 is used to connect the voltage testing rod 2, and the spring support 13 is used to connect the spring 4. The voltage testing rod 2 is a telescopic structure composed of multiple metal tubes connected together. One end of it is a voltage testing rod base 21. Its structural principle is the same as that of a commonly used telescopic radio antenna, which will not be described in detail here. The voltage testing rod base 21 and the bracket 12 are connected by two dampers. 3. The outer shell of the damper 3 is fixedly connected to the bracket 12, and the rotating shaft of the damper 3 is fixedly connected to the voltage testing pole base 21. In this way, the voltage testing pole 2 can rotate with the bracket 12 as the fulcrum. The damper 3 can slow down the rotation speed of the voltage testing pole 2. The damper 3 is a commonly used product and is widely used in slow-closing structures such as toilet seats and washing machine lids. It will not be described in detail here. One end of the spring 4 is fixed to the spring support 13, and the other end is fixed to the voltage testing pole 2 through the clamp bracket 5. When the rail clamp 1 is fixed to the horizontally placed rail head 6 on the ground and the spring 4 is contracted, the voltage testing pole 2 will be in an upright state. When the voltage testing pole 2 is pressed down, the spring 4 is stretched. When the voltage testing pole 2 is released, the spring 4 will pull the voltage testing pole 2 back to the upright state.

[0030] The working principle of the above-mentioned new type of voltage detection device is as follows:

[0031] First, with the voltage testing pole 2 in its shortened state, place the rail clamp 1 on the rail head 6 and tighten the hand-tightening bolt 11 to secure the rail head 6. Second, the operator manually presses down the voltage testing pole 2 and extends it to a suitable length that allows access to the high-voltage equipment above the rail. Third, the operator releases and detaches from the voltage testing pole 2. Under the combined action of the spring 4 and the damper 3, the voltage testing pole 2 will slowly rise to an upright position and make contact with the high-voltage equipment. At this point, if no high-voltage grounding discharge occurs, it proves that the equipment has been de-energized; if a high-voltage grounding discharge occurs, it proves that the equipment has not been de-energized. Since the operator has detached from the voltage testing device, the operator's safety can be guaranteed.

[0032] The dismantling process is as follows: First, completely shorten the test pole 2; second, loosen the hand-tightening bolt 11 and remove the rail clamp 1 from the rail head 6 to complete the dismantling.

[0033] Furthermore, the rail clamp 1, the voltage testing rod 2, the damper 3, and the spring 4 are made of metal materials. The voltage testing device composed of them has good conductivity under high voltage, so it is easy to determine whether the high-voltage equipment is de-energized during voltage testing.

[0034] Furthermore, two hand-tightening bolts 11 are provided, which improves the stability of the connection between the rail clamp 1 and the rail head 6.

[0035] Furthermore, the front end of the hand-tightening bolt 11 has a disc-shaped structure, which can improve the stability of the connection between the rail clamp 1 and the rail head 6.

[0036] Furthermore, the middle part of the rail clamp 1 adopts a hollow structure, which reduces the weight of the parts.

[0037] Furthermore, mounting holes are provided on both sides of the voltage testing pole base 21. These mounting holes match the shape of the rotating shaft of the damper 3. The rotating shaft of the damper 3 can be fixedly connected by inserting it into these mounting holes, thus simplifying its assembly method.

[0038] Optionally, the test pole base 21 and the rotating shaft of the damper 3 can be fixedly connected by welding, thus making the connection firm.

[0039] The beneficial effects of applying the technical solution of this invention are: it provides a simple, convenient, safe and reliable voltage testing device, saving operation time and improving work efficiency.

[0040] The above description of specific embodiments of the present invention is intended to explain the specific principles of the invention and its practical applications. These descriptions are not intended to limit the invention to the disclosed forms and application scenarios. Beyond the field of electrified railways, this invention is also applicable to other fields such as the power industry. Furthermore, many modifications and variations can be made based on the above illustrations. Those skilled in the art, guided by the teachings of this invention, can make various similar representations without departing from the spirit and claims of this invention, and all such variations are within the protection scope of this invention.

Claims

1. A novel voltage detection device, characterized in that, The system includes a rail clamp (1), a voltage testing rod (2), a damper (3), and a spring (4). The rail clamp (1) includes a hand-tightening bolt (11), a bracket (12), and a spring support (13). The voltage testing rod (2) is a telescopic structure composed of multiple metal tubes connected together. One end of the rod has a voltage testing rod base (21). The voltage testing rod base (21) is connected to the bracket (12) through two dampers (3). The voltage testing rod (2) can rotate with the bracket (12) as the fulcrum. (3) It can slow down the rotation speed of the voltage testing pole (2). One end of the spring (4) is fixed on the spring support (13), and the other end is fixed on the voltage testing pole (2) through the clamp bracket (5). When the rail clamp (1) is fixed horizontally on the ground and the spring (4) is contracted, the voltage testing pole (2) will be in the vertical state. Press down the voltage testing pole (2), the spring (4) will be stretched, and the voltage testing pole (2) will be released. The spring (4) will pull the voltage testing pole (2) back to the vertical state.

2. The novel voltage testing device according to claim 1, characterized in that, The rail clamp (1), voltage testing rod (2), damper (3), and spring (4) are made of metal materials, and the voltage testing device composed of them is a conductor.

3. The novel voltage testing device according to claim 1, characterized in that, Two hand-tightening bolts (11) are provided.

4. The novel voltage testing device according to claim 1, characterized in that, The front end of the hand-tightening bolt (11) has a disc-shaped structure.

5. The novel voltage testing device according to claim 1, characterized in that, The middle part of the rail clamp (1) adopts a hollow structure.

6. The novel voltage testing device according to claim 1, characterized in that, The voltage testing pole base (21) has mounting holes on both sides, and these mounting holes are fixedly connected to the rotating shaft of the damper (3) through assembly.

7. The novel voltage testing device according to claim 1, characterized in that, The test pole base (21) and the rotating shaft of the damper (3) are fixedly connected by welding.

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