Distribution line grounding fault rapid detection device

Abstract

The utility model relates to the technical field of distribution lines, and discloses a distribution line grounding fault rapid detection device comprising a telescopic distance measuring rod, the bottom end of the telescopic distance measuring rod is provided with an electricity testing assembly, the interior of the telescopic distance measuring rod is fixedly connected with a connecting rod, the top end of the electricity testing assembly is provided with a detection head, and the top end of the connecting rod is fixedly connected with the connecting rod. An expansion block is fixedly connected to one side of the telescopic distance measuring rod, a mounting block is slidably connected to the interior of the top end of the expansion block, a containing hole is formed in one side of the expansion block, two first strong springs are arranged in the containing hole, and two pulling rods are slidably connected to the inner wall of one side of the expansion block. According to the hook, the pull plate is pulled, the pull rod is driven to enable the connecting plate to drive the clamping rod to slide out of the interior of the mounting block, at the moment, the hook can be rapidly replaced, the problem that the performance of the hook is reduced due to abrasion and aging caused by long-term use is solved, and the hook keeps the optimal performance.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution lines, in particular to a quick detection device for grounding faults of power distribution lines. Background Art

[0002] A distribution line refers to a series of electrical equipment and conductors used to transmit electrical energy. A ground fault rapid detection device is a device used to detect ground faults in electrical systems. A ground fault refers to a fault that occurs when the conductor of an electrical device or line accidentally contacts the ground or a grounding conductor. This fault may cause serious consequences such as a short circuit, equipment damage, or even a fire. Therefore, the function of a ground fault rapid detection device is to detect ground faults in a timely manner and take measures to repair them to ensure the safe operation of the electrical system.

[0003] After searching, the Chinese patent document announcement number is: CN207650315U. The utility model belongs to the field of distribution lines, and specifically relates to a distribution line grounding fault detection device; it includes a detection head, a tester, an alarm, a wire hook, a telescopic insulating distance measuring rod, a connecting rod, a spiral wire and a terminal; one end of the detection head is connected to the tester, the other end of the tester is connected to one end of the connecting rod, the other end of the connecting rod is connected to one end of the telescopic insulating distance measuring rod, the terminal is fixedly installed on the end of the telescopic insulating distance measuring rod that is not connected to the connecting rod, one end of the spiral wire is connected to the terminal, the other end of the spiral wire passes through the inside of the telescopic insulating distance measuring rod and the inside of the connecting rod and is connected to the tester, and the wire hook is fixedly installed on the telescopic insulating distance measuring rod at the connection between the connecting rod and the telescopic insulating distance measuring rod; the alarm is connected to the tester through the wire; the structure is simple, the operation process is simpler, the risk is small, the control measures are fewer, and the labor intensity is reduced.

[0004] The above patent mentions in the beneficial effects that "one end of the spiral wire 6 is connected to the terminal 7, the other end of the spiral wire 6 passes through the inside of the telescopic insulating ranging rod 8 and the inside of the connecting rod 4 and is connected to the electroscope 2, the wire hook 5 is fixedly mounted on the telescopic insulating ranging rod 8 at the junction of the connecting rod 4 and the telescopic insulating ranging rod 8, and the wire hook 5 is an iron arc hook. The alarm 3 is connected to the electroscope 2 through the wire." However, the wire hook will be worn, corroded or the material will age due to long-term exposure to harsh environments. These problems will cause the mechanical properties of the hook to deteriorate, and the device cannot be effectively fixed and supported. For this reason, a distribution line grounding fault rapid detection device is proposed to solve the above problems. Summary of the invention

[0005] In order to make up for the above shortcomings, the utility model provides a distribution line grounding fault rapid detection device, aiming to improve the problem in the prior art that the hook will be worn and aged due to long-term use, which will lead to the performance degradation of the hook.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rapid detection device for ground faults in a power distribution line, comprising a retractable ranging rod, a power detection assembly is arranged at the bottom end of the retractable ranging rod, a connecting rod is fixedly connected inside the retractable ranging rod, a detection head is arranged at the top of the power detection assembly, an expansion block is fixedly connected to one side of the retractable ranging rod, a mounting block is slidably connected inside the top of the expansion block, a receiving hole is provided inside one side of the expansion block, two strong springs are arranged inside the receiving hole, two pull rods are slidably connected to the inner wall of one side of the expansion block, a connection plate is fixedly connected to the right ends of the two pull rods, a pull plate is fixedly connected to the left ends of the two pull rods, two engaging rods are fixedly connected to the right end of the connection plate, and a wire hook is fixedly connected to the top of the mounting block;

[0008] As a further description of the above technical solution:

[0009] The invention is characterized in that: the wire hook is internally slidably connected to two sliding rods, the wire hook is internally provided with two sliding holes, the sliding rod is externally fixedly connected to a limiting disk, the external sleeve of the sliding rod is provided with two strong springs, the adjacent sides of the two sliding rods are fixedly connected to a clamping block, and the distant sides of the two sliding rods are fixedly connected to a baffle disk;

[0010] As a further description of the above technical solution:

[0011] The electrical inspection component includes a wiring terminal, the top side of which is arranged at the bottom end of the telescopic ranging rod, the top end of the connecting rod is provided with an electrical inspection block, the electrical inspection block is arranged at the bottom end of the detection head, and the wiring terminal and the electrical inspection block are connected by wires;

[0012] As a further description of the above technical solution:

[0013] The outside of the connecting plate is slidably connected to the inside of the receiving hole, and the strong spring is set on the outside of the pulling rod;

[0014] As a further description of the above technical solution:

[0015] One end of the strong spring 1 is fixedly connected to one side of the interior of the accommodating hole, and the other end of the strong spring 1 is fixedly connected to one side of the connecting plate;

[0016] As a further description of the above technical solution:

[0017] One side of the pull plate contacts one side of the expansion block, and the outside of the engagement rod contacts the inside of one side of the installation block;

[0018] As a further description of the above technical solution:

[0019] The outer portion of the limit plate is slidably connected to the inner portion of the sliding hole, and one side of the clamping block is in contact with the inner portion of the wire hook;

[0020] As a further description of the above technical solution:

[0021] The material of the clamping block is rubber.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, by pulling the pull plate, the pull rod is driven so that the connecting plate drives the locking rod to slide out from the inside of the mounting block. At this time, the hook can be quickly replaced, avoiding the problem of performance degradation of the hook due to wear and aging after long-term use, so that the hook can maintain the best performance.

[0024] In the utility model, the force is applied by the clamping block and then transmitted to the strong spring 2, which then generates a rebound force. The continuous rebound force of the strong spring 2 can reduce the risk of equipment falling off due to accidental loosening of the hook, thereby enhancing the overall safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a distribution line ground fault rapid detection device proposed by the utility model;

[0026] Figure 2 for Figure 1 A in the enlarged view;

[0027] Figure 3 This is a schematic diagram of the expansion block structure of a distribution line ground fault rapid detection device proposed by the utility model;

[0028] Figure 4 The utility model provides a schematic diagram of the wire hook structure of a distribution line ground fault rapid detection device.

[0029] Legend:

[0030] 1. Retractable distance measuring rod; 2. Wiring terminal; 3. Connecting rod; 4. Electricity testing block; 5. Detection head; 6. Expansion block; 7. Mounting block; 8. Accommodation hole; 9. Powerful spring 1; 10. Pull rod; 11. Connecting plate; 12. Pull plate; 13. Engaging rod; 14. Wire hook; 15. Sliding rod; 16. Sliding hole; 17. Limiting plate; 18. Powerful spring 2; 19. Clamping block; 20. Stop plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3 , the utility model provides an embodiment: a distribution line ground fault rapid detection device, including a retractable ranging rod 1 to provide necessary structural support, and the length can be adjusted as needed, the bottom end of the retractable ranging rod 1 is provided with an electric test assembly for connecting with the wire and completing the detection of electrical signals, the electric test assembly includes a wiring terminal 2, the top side of the wiring terminal 2 is arranged at the bottom end of the retractable ranging rod 1, the top of the connecting rod 3 is provided with an electric test block 4, the electric test block 4 is arranged at the bottom end of the detection head 5 for further detection or measurement operations, the wiring terminal 2 and the electric test block 4 are connected by wires, the inside of the retractable ranging rod 1 is fixedly connected with the connecting rod 3, the top of the electric test assembly is provided with a detection head 5, one side of the retractable ranging rod 1 is fixedly connected with an expansion block 6 through an additional platform, the top of the expansion block 6 is internally slidably connected with an installation block 7 to provide a block for installing subsequent components, one side of the expansion block 6 is provided with a receiving hole 8 to accommodate a cavity of subsequent components, and the inside of the receiving hole 8 is provided with two strong springs 9 to provide spring force;

[0033] Two pulling rods 10 are slidably connected to the inner wall of one side of the expansion block 6 for connecting the pulling force, a strong spring 9 is sleeved on the outside of the pulling rod 10, and the right ends of the two pulling rods 10 are fixedly connected with a connecting plate 11 for transmitting the pulling force of the pulling rod 10, one end of the strong spring 9 is fixedly connected to one side of the inner side of the accommodating hole 8, and the other end of the strong spring 9 is fixedly connected to one side of the connecting plate 11, and the outside of the connecting plate 11 is slidably connected to the inside of the accommodating hole 8, and the left ends of the two pulling rods 10 are fixedly connected with a pulling plate 12 for the convenience of the operator to operate, one side of the pulling plate 12 contacts with one side of the expansion block 6, and the right end of the connecting plate 11 is fixedly connected with two engaging rods 13, the outside of the engaging rod 13 is in contact with the inside of one side of the mounting block 7, and cooperates with the corresponding structure inside the mounting block 7 to engage the mounting block 7, and the top of the mounting block 7 is fixedly connected with a wire hook 14 for hanging on the wire or other objects that need to be hung, so as to complete the deployment of the rapid detection device.

[0034] Reference Figure 1 and Figure 4The wire hook 14 is internally slidably connected with two sliding rods 15 for transmitting force during movement. Two sliding holes 16 are provided inside the wire hook 14 for providing movement space for subsequent components. The outside of the sliding rod 15 is fixedly connected with a limiting disk 17, which is used to limit the sliding rod 15. The outside of the limiting disk 17 is slidably connected to the inside of the sliding hole 16. This design is for the movement trajectory of the limiting disk 17. The outside of the sliding rod 15 is provided with a strong spring 18 to provide spring force. The adjacent sides of the two sliding rods 15 are fixedly connected with a clamping block 19, and the material of the clamping block 19 is rubber. One side of the clamping block 19 contacts with the inside of the wire hook 14. The far sides of the two sliding rods 15 are fixedly connected with a baffle 20.

[0035] Working principle: The staff adjusts the telescopic distance measuring rod 1 to the appropriate length in order to reach the position of the wire that needs to be detected. The telescopic distance measuring rod 1 provides the basic support structure of the device, allowing the device to adapt to different heights and positions. The electrical detection component at the bottom of the telescopic distance measuring rod 1 starts to work, and the terminal 2 is connected to the wire. The current passes through the electrical detection block 4 at the top of the connecting rod 3 and is then transmitted to the detection head 5. This step ensures the safety of the device and prevents the staff from working in an electrically charged environment. The detection head 5 approaches or contacts the wire and uses the built-in sensor or detection instrument to detect whether there is a grounding fault in the wire. Then, when the wire hook 14 needs to be replaced, it is only necessary to pull the pull plate 12, and the pull of the pull plate 12 drives the pull rod 10 to move, and then the movement of the pull rod 10 drives the connecting plate 11 to move the locking rod 13, and then the locking rod 1 3 is separated from the hole inside the mounting block 7, the wire hook 14 is removed and replaced, and then the strong spring 1 9 is contracted under the movement of the connecting plate 11, and the contraction of the strong spring 1 9 generates a rebound force, which is the force of the clamping mounting block 7, ensuring the stability of the wire hook 14 during installation, and then when the wire hook 14 is hung on the object to be hung, the clamping block 19 is subjected to force, and the clamping block 19 made of rubber provides the necessary friction force, and under the force of the clamping block 19, the sliding rod 15 is driven to move the limit plate 17, and then the movement of the limit plate 17 causes the strong spring 2 18 to be subjected to force, and then a rebound force is generated, which provides a force to clamp the object to be hung, ensuring the stability of the suspension.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid detection device for ground faults in a power distribution line, comprising a retractable ranging rod (1), characterized in that: The bottom end of the telescopic distance measuring rod (1) is provided with an electric detection component, the interior of the telescopic distance measuring rod (1) is fixedly connected with a connecting rod (3), the top of the electric detection component is provided with a detection head (5), one side of the telescopic distance measuring rod (1) is fixedly connected with an expansion block (6), the top of the expansion block (6) is slidably connected with a mounting block (7), one side of the expansion block (6) is provided with a receiving hole (8), the interior of the receiving hole (8) is provided with two strong springs (9), one side of the expansion block (6) is slidably connected with two pull rods (10), the right ends of the two pull rods (10) are fixedly connected with a connecting plate (11), the left ends of the two pull rods (10) are fixedly connected with a pulling plate (12), the right end of the connecting plate (11) is fixedly connected with two locking rods (13), and the top of the mounting block (7) is fixedly connected with a wire hook (14).

2. A distribution line ground fault rapid detection device according to claim 1, characterized in that: The wire hook (14) is internally slidably connected to two sliding rods (15), the wire hook (14) is internally provided with two sliding holes (16), the sliding rod (15) is externally fixedly connected to a limiting disk (17), the external sleeve of the sliding rod (15) is provided with a second strong spring (18), the adjacent sides of the two sliding rods (15) are fixedly connected to a clamping block (19), and the distant sides of the two sliding rods (15) are fixedly connected to a baffle disk (20).

3. A distribution line ground fault rapid detection device according to claim 1, characterized in that: The electrical testing component comprises a wiring terminal (2), the top side of the wiring terminal (2) being arranged at the bottom end of the telescopic ranging rod (1), the top end of the connecting rod (3) being provided with an electrical testing block (4), the electrical testing block (4) being arranged at the bottom end of the detection head (5), and the wiring terminal (2) and the electrical testing block (4) being connected by an electric wire.

4. A distribution line ground fault rapid detection device according to claim 1, characterized in that: The outside of the connecting plate (11) is slidably connected to the inside of the accommodating hole (8), and the strong spring 1 (9) is sleeved on the outside of the pulling rod (10).

5. A distribution line ground fault rapid detection device according to claim 1, characterized in that: One end of the strong spring one (9) is fixedly connected to one side of the interior of the accommodating hole (8), and the other end of the strong spring one (9) is fixedly connected to one side of the connecting plate (11).

6. A distribution line ground fault rapid detection device according to claim 1, characterized in that: One side of the pull plate (12) contacts one side of the expansion block (6), and the outside of the locking rod (13) contacts the inside of one side of the installation block (7).

7. A distribution line ground fault rapid detection device according to claim 2, characterized in that: The outside of the limiting plate (17) is slidably connected to the inside of the sliding hole (16), and one side of the clamping block (19) is in contact with the inside of the wire hook (14).

8. A distribution line ground fault rapid detection device according to claim 2, characterized in that: The material of the clamping block (19) is rubber.

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