Miniaturized device for live-line measurement of voltage distribution of insulator string

Abstract

The utility model discloses a miniaturized device for live-line measurement of voltage distribution of an insulator string, which comprises an on-tower detection end and a handheld monitoring end which are in wireless connection. A measuring module is arranged on the side edge of the on-tower detection end, the measuring module comprises two probes and two connecting plates, the two probes are detachably connected with the two connecting plates respectively, the two connecting plates are symmetrically and adjustably arranged on the side edge of the on-tower detection end, and meanwhile, the probes are connected with internal devices of the on-tower detection end; according to the utility model, the adjustable end plate is arranged, and the probes are arranged on the end plate, so that the distance between the ends, far away from the detection end on the tower, of the two probes can be adjusted by rotating the end plate, and support is provided for detecting voltages of insulators with different sizes; besides, the connecting plate capable of moving relative to the detection end on the tower is arranged, so that convenience is provided for adjusting the distance between the two probes, and support is provided for detecting the voltage of insulators with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of insulator detection, in particular to a miniaturized device for live measuring voltage distribution of an insulator string. Background Art

[0002] After the insulators in power projects are put into use, they need to be inspected regularly to determine whether the insulation resistance and withstand voltage of the insulators meet the requirements. At the same time, the appearance of the insulators should be inspected to determine whether there are cracks or damage on the surface of the insulators. Through the above inspections, deteriorated insulators can be removed to improve the safety of power transmission.

[0003] At present, in order to realize the inspection of the withstand voltage of the insulator, it is generally necessary for the staff to hold the insulator voltage test equipment close to the insulator string and complete the inspection of multiple insulators one by one. There are many types of insulator voltage test equipment, such as an insulator distribution voltage tester disclosed in a Chinese patent with patent publication number CN204154787U, which includes a plurality of insulating rods connected in sequence, and the top of the insulating rod is provided with a reading meter with a segment LCD display and a detection probe, the detection probe includes a capacitive voltage divider, and the top and end of the capacitive voltage divider are respectively provided with a first metal probe and a second metal probe, and a connecting line is provided between the end of the capacitive voltage divider and the reading meter with a segment LCD display, and the power source used by the reading meter with a segment LCD display is a lithium-ion battery.

[0004] The LCD display screen of the insulator distributed voltage tester provided by the above patent is set close to the metal probe. When the metal probe is placed close to the insulator, it is inconvenient for the staff to observe the LCD display screen to read the corresponding measurement value, and the practicality is poor. In addition, there are many types of insulators, and the sizes are different. The distance between the first metal probe and the second metal probe in the above patent cannot be adjusted. Therefore, when measuring the voltage of different insulators, it is necessary to equip a variety of insulator distributed voltage testers, which correspondingly increases the cost of insulator voltage measurement. Utility Model Content

[0005] The purpose of the utility model is to provide a miniaturized device for measuring the voltage distribution of an insulator string under power, aiming to improve the problem that the insulator distribution voltage tester has poor practicality, is inconvenient to adjust its own state according to different insulators, and increases the cost of testing different insulators.

[0006] The utility model is implemented as follows: a miniaturized device for live measurement of voltage distribution of insulator strings, comprising a detection terminal on a tower and a handheld monitoring terminal, which are wirelessly connected to each other; a measurement module is arranged on the side of the detection terminal on the tower, the measurement module comprises two probes and a connecting plate, the two probes are detachably connected to the two connecting plates respectively, the two connecting plates are symmetrically and adjustably arranged on the side of the detection terminal on the tower, and the probes are connected to internal devices of the detection terminal on the tower.

[0007] Preferably, two snap grooves are symmetrically arranged on the end surface of the detection end on the tower, and the ends of the two snap grooves that are away from each other are both arranged to be openings. A snap plate is fixedly arranged on the side of the connecting plate, and the snap plate is located in the snap groove.

[0008] Preferably, a protrusion is provided between the two buckle grooves at the detection end on the tower, a notch is provided on the protrusion, a pressure plate is provided through the notch, and the end of a bolt provided through the middle of the pressure plate is threadedly inserted into the notch.

[0009] Preferably, a pressing groove is provided on the side walls of the two connecting plates away from the detection end on the tower, and the end of the pressing plate extends into the pressing groove.

[0010] Preferably, one end of the two connecting plates away from each other is hingedly provided with an end plate, and the probe is threadedly inserted into the end plate.

[0011] Preferably, a first connecting tube and a third connecting tube are arranged on the end surface of the connecting plate adjacent to the end plate, a limiting groove is arranged at the end of the third connecting tube, the limiting groove is sleeved on the limiting plate, and the limiting plate is fixedly connected to the connecting plate; a bolt is penetrated through the first connecting tube, and the end of the bolt is threadedly inserted into the third connecting tube; a second connecting tube is fixedly arranged on the end surface of the end plate adjacent to the connecting plate, the second connecting tube extends into the first connecting tube and the third connecting tube, and is sleeved on the bolt.

[0012] Preferably, a threaded column is provided at one end of the probe, and a threaded groove is provided at the other end, and the threaded column can be threadably inserted into the threaded groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with an adjustable end plate, and the probe is installed on the end plate. The end distance of the two probes away from the detection end on the tower can be adjusted by rotating the end plate, thereby providing support for detecting the voltages of insulators of different sizes. In addition, a connecting plate that can be moved relative to the detection end on the tower is provided, thereby facilitating the adjustment of the distance between the two probes, and also providing support for detecting the voltages of insulators of different sizes.

[0015] The utility model is provided with probes that can be spliced ​​and connected, and the number of probes can be adjusted according to insulators of different sizes, thereby adjusting the length of the probes, thereby providing support for realizing voltage measurement of different insulators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the detection end on the tower of the utility model;

[0018] Figure 3 It is a schematic diagram of the first partial three-dimensional structure of the measurement module of the utility model;

[0019] Figure 4 It is a schematic diagram of the second partial three-dimensional structure of the measurement module of the utility model;

[0020] Figure 5 It is a schematic diagram of the third partial three-dimensional structure of the measurement module of the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the connecting plate and the end plate of the utility model;

[0022] Figure 7 It is a partial three-dimensional structural schematic diagram of the probe of the utility model;

[0023] Figure 8 It is a schematic diagram of the composition of the detection end on the tower of the utility model.

[0024] In the figure: 1. detection end on the tower; 11. snap groove; 12. bump; 13. pressure plate; 14. fastening bolt; 2. handheld monitoring end; 3. measurement module; 31. probe; 32. threaded column; 33. connecting plate; 331. limiting plate; 332. first connecting pipe; 34. pressure groove; 35. snap plate; 36. end plate; 361. second connecting pipe; 37. third connecting pipe; 371. limiting groove; 38. threaded groove. DETAILED DESCRIPTION

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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.

[0026] The following is a further description with reference to the accompanying drawings and specific embodiments: Example

[0027] like Figure 1 , Figure 8As shown, a miniaturized device for measuring the voltage distribution of an insulator string under power, includes a tower detection terminal 1 and a handheld monitoring terminal 2. A capacitive voltage sensor, a converter, an amplifier, a single-chip microcomputer, a wireless transmission circuit and a power module are arranged in the tower detection terminal 1. After the capacitive voltage sensor divides the voltage signal, it is converted by the converter and amplified by the amplifier to be converted into a digital signal, and the digital signal is sent to the handheld monitoring terminal 2 through the wireless transmission circuit. A power module, a touch screen, a wireless receiving circuit and a single-chip microcomputer are arranged in the handheld monitoring terminal 2. After the wireless receiving circuit receives the signal, it processes, displays and stores it. In this way, the staff can view the numbers detected by the tower detection terminal 1 in real time through the handheld monitoring terminal 2. Since the tower detection terminal 1 and the handheld monitoring terminal 2 are existing technologies, they are not described in detail here.

[0028] like Figure 1 , Figure 5 As shown, in order to make the detection terminal 1 on the tower adaptable to insulators of different sizes, a measurement module 3 is arranged on the side of the detection terminal 1 on the tower. The measurement module 3 includes two probes 31, an end plate 36 and a connecting plate 33. The two connecting plates 33 are symmetrically arranged at the ends of the detection terminal 1 on the tower, and the two end plates 36 are respectively arranged at one end of the two connecting plates 33 away from each other. The probe 31 is threadedly inserted into the end plate 36 and is connected to the capacitive voltage sensor through a wire.

[0029] In order to achieve the adjustment of the probe 31, adapt to insulators of different sizes, such as Figure 6 As shown, a first connecting tube 332 and a third connecting tube 37 are provided on the end surface of the connecting plate 33 adjacent to the end plate 36. The first connecting tube 332 is fixedly provided at one end of the connecting plate 33. A limiting plate 331 is symmetrically fixedly provided at the other end of the connecting plate 33. The two limiting plates 331 are distributed on both sides of the third connecting tube 37. A limiting groove 371 is provided at the end of the third connecting tube 37. The limiting groove 371 is sleeved on the limiting plate 331. Therefore, the third connecting tube 37 can be stably and movably connected relative to the connecting plate 33. A bolt is provided through the first connecting tube 332, and the end of the bolt is threadedly inserted into the third connecting tube 37. At the same time, a second connecting tube 361 is fixedly provided on the end surface of the end plate 36 adjacent to the connecting plate 33. The second connecting tube 361 extends into the first connecting tube 332 and the third connecting tube 37, and is sleeved on the bolt. Since the second connecting tube 361 is hingedly provided with the first connecting tube 332 and the third connecting tube 37, the staff can control the end plate 36 to rotate around the axis to force the probe 31 to be tilted relative to the detection end 1 on the tower, so that the ends of the two probes 31 away from the detection end 1 on the tower are away from each other, so that the ends of the two probes 31 can be respectively extended into the two ends of the insulator to realize the detection of the voltages of insulators of different sizes, thereby improving the practicability of the device, avoiding the need to equip multiple sets of the device, and relatively reducing the cost of detecting insulators of different sizes.

[0030] Or, if Figure 2, Figure 3 , Figure 4 As shown, two snap grooves 11 are symmetrically arranged on the end surface of the detection end 1 on the tower, and the ends of the two snap grooves 11 away from each other are arranged to be openings. At the same time, a protrusion 12 is arranged between the two snap grooves 11, and a notch is arranged on the protrusion 12. A pressure plate 13 is penetrated through the notch, and the end of the fastening bolt 14 penetrated through the middle of the pressure plate 13 is threadedly inserted into the notch. A snap plate 35 is fixedly arranged on the side of the connecting plate 33, and a pressure groove 34 is arranged on the side walls of the two connecting plates 33 away from the detection end 1 on the tower. The snap plate 35 is located in the snap groove 11, and the end of the pressure plate 13 extends into the pressure groove 34, and an anti-slip layer is arranged on the side wall of the pressure plate 13. With the cooperation of the snap groove 11 and the snap plate 35, the connecting plate 33 is movably arranged on the detection end 1 on the tower, so as to facilitate the adjustment of the position of the end plate 36 and the probe 31 according to the demand, and to adjust the distance between the two probes 31, thereby facilitating the detection of insulators of different sizes, improving the practicality of the device, avoiding the need to equip multiple sets of the device, and relatively reducing the cost of detecting insulators of different sizes. In order to stably place the connecting plate 33 and the probe 31 relative to the detection end 1 on the tower after the position adjustment, the bolt can be rotated to control the movement of the pressure plate 13, thereby forcing the end of the pressure plate 13 to press against the connecting plate 33, increasing the resistance of the movement of the connecting plate 33, and facilitating the installation of the probe 31 to realize the insulator voltage detection.

[0031] In addition, if Figure 5 As shown, on the premise that the connecting plate 33 is adjustable relative to the detection end 1 on the tower, the end plate 36 can be adjustably hingedly set at the end of the connecting plate 33. On the premise of adjusting the distance between the two probes 31, the inclination angle of the probe 31 relative to the detection end 1 on the tower can be adjusted as needed, thereby realizing a larger range of adjustment of the probe 31. Example

[0032] like Figure 1 , Figure 8 As shown, a miniaturized device for measuring the voltage distribution of an insulator string under power, includes a tower detection terminal 1 and a handheld monitoring terminal 2. A capacitive voltage sensor, a converter, an amplifier, a single-chip microcomputer, a wireless transmission circuit and a power module are arranged in the tower detection terminal 1. After the capacitive voltage sensor divides the voltage signal, it is converted by the converter and amplified by the amplifier to be converted into a digital signal, and the digital signal is sent to the handheld monitoring terminal 2 through the wireless transmission circuit. A power module, a touch screen, a wireless receiving circuit and a single-chip microcomputer are arranged in the handheld monitoring terminal 2. After the wireless receiving circuit receives the signal, it processes, displays and stores it. In this way, the staff can view the numbers detected by the tower detection terminal 1 in real time through the handheld monitoring terminal 2. Since the tower detection terminal 1 and the handheld monitoring terminal 2 are existing technologies, they are not described in detail here.

[0033] like Figure 1 , Figure 5 As shown, in order to make the detection terminal 1 on the tower adaptable to insulators of different sizes, a measurement module 3 is arranged on the side of the detection terminal 1 on the tower. The measurement module 3 includes two probes 31, an end plate 36 and a connecting plate 33. The two connecting plates 33 are symmetrically arranged at the ends of the detection terminal 1 on the tower, and the two end plates 36 are respectively arranged at one end of the two connecting plates 33 away from each other. The probe 31 is threadedly inserted into the end plate 36 and is connected to the capacitive voltage sensor through a wire.

[0034] In order to achieve the adjustment of the probe 31, adapt to insulators of different sizes, such as Figure 6 As shown, a first connecting tube 332 and a third connecting tube 37 are provided on the end surface of the connecting plate 33 adjacent to the end plate 36. The first connecting tube 332 is fixedly provided at one end of the connecting plate 33. A limiting plate 331 is symmetrically fixedly provided at the other end of the connecting plate 33. The two limiting plates 331 are distributed on both sides of the third connecting tube 37. A limiting groove 371 is provided at the end of the third connecting tube 37. The limiting groove 371 is sleeved on the limiting plate 331. Therefore, the third connecting tube 37 can be stably and movably connected relative to the connecting plate 33. A bolt is provided through the first connecting tube 332, and the end of the bolt is threadedly inserted into the third connecting tube 37. At the same time, a second connecting tube 361 is fixedly provided on the end surface of the end plate 36 adjacent to the connecting plate 33. The second connecting tube 361 extends into the first connecting tube 332 and the third connecting tube 37, and is sleeved on the bolt. Since the second connecting tube 361 is hingedly provided with the first connecting tube 332 and the third connecting tube 37, the staff can control the end plate 36 to rotate around the axis to force the probe 31 to be tilted relative to the detection end 1 on the tower, so that the ends of the two probes 31 away from the detection end 1 on the tower are away from each other, so that the ends of the two probes 31 can be respectively extended into the two ends of the insulator to realize the detection of the voltages of insulators of different sizes, thereby improving the practicability of the device, avoiding the need to equip multiple sets of the device, and relatively reducing the cost of detecting insulators of different sizes.

[0035] Or, if Figure 2 , Figure 3 , Figure 4As shown, two snap grooves 11 are symmetrically arranged on the end surface of the detection end 1 on the tower, and the ends of the two snap grooves 11 away from each other are arranged to be openings. At the same time, a protrusion 12 is arranged between the two snap grooves 11, and a notch is arranged on the protrusion 12. A pressure plate 13 is penetrated through the notch, and the end of the fastening bolt 14 penetrated through the middle of the pressure plate 13 is threadedly inserted into the notch. A snap plate 35 is fixedly arranged on the side of the connecting plate 33, and a pressure groove 34 is arranged on the side walls of the two connecting plates 33 away from the detection end 1 on the tower. The snap plate 35 is located in the snap groove 11, and the end of the pressure plate 13 extends into the pressure groove 34, and an anti-slip layer is arranged on the side wall of the pressure plate 13. With the cooperation of the snap groove 11 and the snap plate 35, the connecting plate 33 is movably arranged on the detection end 1 on the tower, so as to facilitate the adjustment of the position of the end plate 36 and the probe 31 according to the demand, and to adjust the distance between the two probes 31, thereby facilitating the detection of insulators of different sizes, improving the practicality of the device, avoiding the need to equip multiple sets of the device, and relatively reducing the cost of detecting insulators of different sizes. In order to stably place the connecting plate 33 and the probe 31 relative to the detection end 1 on the tower after the position adjustment, the bolt can be rotated to control the movement of the pressure plate 13, thereby forcing the end of the pressure plate 13 to press against the connecting plate 33, increasing the resistance of the movement of the connecting plate 33, and facilitating the installation of the probe 31 to realize the insulator voltage detection.

[0036] In addition, if Figure 5 As shown, on the premise that the connecting plate 33 is adjustable relative to the detection end 1 on the tower, the end plate 36 can be adjustably hingedly set at the end of the connecting plate 33. On the premise of adjusting the distance between the two probes 31, the inclination angle of the probe 31 relative to the detection end 1 on the tower can be adjusted as needed, thereby realizing a larger range of adjustment of the probe 31.

[0037] In order to better adapt to different sizes of insulators, such as Figure 7 As shown, the device can be equipped with multiple probes 31, each probe 31 is provided with a threaded column 32 at one end and a threaded groove 38 at the other end. When voltage detection is performed on an insulator of a larger size, the threaded column 32 of an adjacent probe 31 can be threadedly inserted into the threaded groove 38 to adjust the length of the probe 31.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A miniaturized device for measuring the voltage distribution of an insulator string under power, characterized in that: The invention comprises a tower detection terminal (1) and a handheld monitoring terminal (2), wherein the tower detection terminal (1) and the handheld monitoring terminal (2) are wirelessly connected; a measuring module (3) is arranged on the side of the tower detection terminal (1), and the measuring module (3) comprises two probes (31) and a connecting plate (33); the two probes (31) are detachably arranged on the sides of the two connecting plates (33), and the two connecting plates (33) are symmetrically and adjustably arranged on the sides of the tower detection terminal (1); and the probes (31) are connected to internal components of the tower detection terminal (1).

2. A miniaturized device for measuring voltage distribution of an insulator string under power according to claim 1, characterized in that: Two snap-in grooves (11) are symmetrically arranged on the end surface of the detection end (1) on the tower, and the ends of the two snap-in grooves (11) that are away from each other are both arranged to be open. A snap-in plate (35) is fixedly arranged on the side surface of the connecting plate (33), and the snap-in plate (35) is located in the snap-in groove (11).

3. A miniaturized device for live measurement of insulator string voltage distribution according to claim 2, characterized in that: The detection end (1) on the tower is provided with a protrusion (12) between the two buckle grooves (11), the protrusion (12) is provided with a notch, a pressure plate (13) is provided through the notch, and the end of a bolt provided through the middle of the pressure plate (13) is threadedly inserted into the notch.

4. A miniaturized device for live measurement of insulator string voltage distribution according to claim 3, characterized in that: A pressing groove (34) is provided on the side walls of the two connecting plates (33) away from the detection end (1) on the tower, and the end of the pressing plate (13) extends into the pressing groove (34).

5. A miniaturized device for live measurement of insulator string voltage distribution according to claim 1, characterized in that: An end plate (36) is hingedly provided at one end of the two connecting plates (33) that is away from each other, and the probe (31) is threadedly inserted into the end plate (36).

6. A miniaturized device for live measurement of insulator string voltage distribution according to claim 5, characterized in that: A first connecting tube (332) and a third connecting tube (37) are arranged on the end surface of the connecting plate (33) adjacent to the end plate (36); a limiting groove (371) is arranged at the end of the third connecting tube (37); the limiting groove (371) is sleeved on the limiting plate (331); the limiting plate (331) is fixedly connected to the connecting plate (33); a bolt is penetrated through the first connecting tube (332); the end of the bolt is threadedly inserted into the third connecting tube (37); a second connecting tube (361) is fixedly arranged on the end surface of the end plate (36) adjacent to the connecting plate (33); the second connecting tube (361) extends into the first connecting tube (332) and the third connecting tube (37), and is sleeved on the bolt.

7. A miniaturized device for live measurement of insulator string voltage distribution according to claim 1, characterized in that: One end of the probe (31) is provided with a threaded column (32), and the other end may be provided with a threaded groove (38), and the threaded column (32) may be threadably inserted into the threaded groove (38).

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