Transformer outgoing line electric quantity measuring equipment convenient to control

Abstract

The invention relates to transformer outgoing line electric quantity measuring equipment convenient to control, which comprises a standard electric meter and three clamp-type current transformers, and further comprises a portable shell, the portable shell comprises a lower shell and an upper shell which are hinged with each other, and the standard electric meter and the clamp-type current transformers are respectively embedded in the lower shell and the upper shell; an outer partition plate and an inner partition plate are sequentially arranged in the upper shell from outside to inside, the inner partition plate is rotationally sleeved with rolling shafts, the rolling shafts and the split core type current transformers are equal in number and arranged in a one-to-one correspondence mode, the rolling shafts are in a hollow circular tube shape, conductive sliding rings are arranged on the rolling shafts, and extension lines are wound around the sections, located between the outer partition plate and the inner partition plate, of the rolling shafts. One end of the extension line is connected to the split core type current transformer, the other end penetrates into the winding shaft and is connected to the rotating end of the conductive slip ring, and the fixed end of the conductive slip ring is connected to the standard ammeter. Detection tools can be conveniently carried and moved, the detection tools can be arranged on a telegraph pole, and meanwhile the situation that wires are wound and knotted is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer area line loss detection, and in particular relates to a transformer outgoing line quantity measuring device which is easy to operate. Background Art

[0002] In the power system, the substation refers to the power supply range or area of ​​(a) transformer. At present, there may be abnormal line loss in the outgoing lines of the substation, such as power theft, leakage, etc. At this time, it is necessary to check the lines in time. When checking, the clamp-type current transformer is used for detection. Workers need to carry clamp-type current transformers and standard meters, and may climb to a high place to detect and operate. The clamp-type current transformer is clamped on the outgoing line of the meter to be tested, and the outgoing power of the line is measured. The measurement signal is transmitted to the standard meter through a wired method, and the measurement data is displayed by the standard meter to determine whether there is abnormal line loss.

[0003] For the outgoing line of the one-way meter to be tested, only one clamp-type current transformer is required; however, for the three-phase meter to be tested, three clamp-type current transformers are required, and the three clamp-type current transformers are connected to the standard meter through wires. In this way, there are more wires between the clamp-type current transformer and the standard meter, which may be entangled during the detection process. In addition, if you need to climb to a high place, it is inconvenient for workers to carry and take more detection tools. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a transformer outgoing line electrical quantity measuring device that is easy to operate.

[0005] The present invention is achieved through the following technical solutions: A transformer outgoing line power measurement device that is easy to operate, the power detection device includes a standard electric meter and three clamp-type current transformers, and also includes a portable shell, which is convenient for loading the above-mentioned electric meter and transformers, the portable shell includes a lower shell and an upper shell that are hinged to each other, which is convenient for opening and closing the portable shell, and the standard electric meter and the clamp-type current transformer are respectively embedded in the lower shell and the upper shell; The upper shell is provided with an outer partition and an inner partition in sequence from the outside to the inside, so as to partition the upper shell. The clamp-on current transformer is placed outside the outer partition. The inner partition is rotatably sleeved with a reel, which is convenient for winding the wire. The reel is equal in number to the clamp-on current transformer and is arranged one-to-one. The reel is in the shape of a hollow circular tube, and a conductive slip ring is arranged on the reel. An extension line is wound around a section of the reel between the outer partition and the inner partition, and one end of the extension line is connected to the clamp-on current transformer, and the other end passes through the reel and is connected to the rotating end of the conductive slip ring. The fixed end of the conductive slip ring is connected to a standard electric meter. The distance between the outer partition and the inner partition is greater than the diameter of the extension line and less than twice the diameter of the extension line, providing sufficient space for accommodating the extension line.

[0006] Furthermore, the outer partition includes an upper section and a lower section which are integrally formed, the longitudinal section of the upper section is in the shape of a "1", the longitudinal section of the lower section is in the shape of an inverted "L", the horizontal section end of the lower section is connected to the lower end of the upper section, and the vertical section is located outside the upper section; the vertical surfaces of the upper section and the lower section are not on the same plane; The reel is rotatably arranged at the upper section, and the horizontal section of the lower section is provided with an opening to facilitate the passage of the extension line, and the extension line passes through the opening to be connected to the clamp-type current transformer.

[0007] Furthermore, a guide assembly is provided in the upper shell body, and the guide assembly includes a guide wheel, and the guide wheel is rotatably provided in the space between the lower section of the outer partition and the inner partition, so as to provide guidance for the arrangement of the extension line. One end of the extension line away from the conductive slip ring is downwardly wound around the guide wheel, and then upwardly passes through the opening of the lower section and is connected to the clamp-on current transformer.

[0008] Furthermore, a section of the winding shaft located on the inner side of the inner partition is fixedly sleeved with a transmission wheel, and the three transmission wheels are connected by belt or chain transmission, so that the three winding shafts can rotate synchronously in the same direction.

[0009] Furthermore, one of the winding shafts is fixedly sleeved with a ratchet, and a wire-winding handle is longitudinally slidably provided on the upper part of the upper shell body, the wire-winding handle is in an N shape, the horizontal section of the wire-winding handle is located above the upper shell body, and the two vertical sections of the wire-winding handle are respectively located on both sides of the ratchet and are respectively provided with a first ratchet rod and a second ratchet rod, so as to facilitate the control of the two ratchet rods to move up and down, the upper ends of the first ratchet rod and the second ratchet rod are respectively hinged to the lower ends of the two vertical sections of the wire-winding handle, and a torsion spring is provided between the first ratchet rod and the second ratchet rod and the wire-winding handle, and the torsion spring drives the first ratchet rod or the second ratchet rod to rotate toward the ratchet wheel, so that the ratchet rod is close to and fits the ratchet wheel; When the wire-reeling handle drives the first ratchet rod and the second ratchet rod to move downward, the lower end of the first ratchet rod drives the ratchet wheel to rotate forward. When the wire-reeling handle drives the first ratchet rod and the second ratchet rod to move upward, the lower end of the second ratchet rod drives the ratchet wheel to rotate forward, thereby driving the winding shaft to rotate forward and realizing the winding of the extension line.

[0010] Furthermore, a limit rod is disposed inside the first ratchet rod and the second ratchet rod; When the wire taking-up handle drives the first ratchet rod and the second ratchet rod to move upward until the lower ends of the first ratchet rod and the second ratchet rod are disengaged from the ratchet, the limiting rod of the first ratchet rod and the limiting rod of the second ratchet rod abut against each other. At this time, the lower ends of the first ratchet rod and the second ratchet rod are spaced apart and respectively located on both sides of the ratchet axis.

[0011] Furthermore, the power detection device also includes two sets of fixing components, which are convenient for fixing the portable shell on the electric pole. The two sets of fixing components are respectively located on both sides of the portable shell. The fixing components include a fixing belt and a fixing hook. One end of the fixing belt is connected to the bottom of the rear end of the upper shell, and the other end is connected to the fixing hook. The fixing hook is buckled with the bottom of the rear end of the lower shell; When the electric quantity detection device is fixed to the electric pole, the upper shell and the lower shell are opened, so that the rear end surface of the upper shell and the end surface of the lower shell are fitted to the circumferential outer wall of the electric pole, and the electric pole is clamped by the fixing belt.

[0012] Furthermore, the fixing assembly also includes a winding shaft, which is rotatably disposed in the upper shell and located on the inner side of the inner partition, and the fixing belt is wound and stored on the winding shaft.

[0013] Furthermore, the winding shaft is a hollow circular tube structure, a driving shaft is arranged inside the winding shaft, a ratchet and ratchet structure is arranged between the driving shaft and the winding shaft, the ratchet and ratchet structure prevents the fixing belt on the winding shaft from being released outward, and one end of the driving shaft extends outward from the upper shell; The drive shaft is provided with a belt releasing state and a belt taking-up state. When the drive shaft is in the belt releasing state, the ratchet wheel and ratchet tooth structure are invalid, and the fixed belt can be released outwards. When the drive shaft is in the belt taking-up state, the ratchet wheel and ratchet tooth structure are effective, and the fixed belt cannot be released outwards. The drive shaft is axially slidably sleeved in the winding shaft. When the drive shaft slides outwards, the drive shaft is in a tape unwinding state. When the drive shaft slides inwards, the drive shaft is in a tape rewinding state.

[0014] Furthermore, the end of the winding shaft is provided with an introduction section and a ratchet section in sequence from the outside to the inside, the inner diameter section of the introduction section is a truncated cone with a larger outer side and a smaller inner side, the inner wall of the ratchet section is ratchet-shaped, and a ratchet is provided on the driving shaft through a torsion spring rotation; When the driving shaft is in the tape unwinding state, the pawl is located at the lead-in section, and when the driving shaft is in the tape rewinding state, the pawl is located at the ratchet section.

[0015] Through the above technical solution, the beneficial effects of the present invention are: The portable case of the present invention is composed of an upper shell and a lower shell, which can be respectively loaded with a standard electric meter and a clamp-on current transformer, so that the detection tool can be conveniently carried through the portable case. Three clamp-on current transformers are loaded in the upper shell, each clamp-on current transformer corresponds to a reel, and the three reel are synchronously controlled by belt / chain transmission.

[0016] The reel of the present invention is wound with an extension cord, and the reel rotates forward to reel in the extension cord, one end of the extension cord is passed around a guide wheel and connected to a clamp-type current transformer, and the other end is connected to a conductive slip ring, which is in turn connected to a standard electric meter. In this way, the standard electric meter and the clamp-type current transformer can be connected through the extension cord, ensuring the regularity of the extension cord.

[0017] The wire reel handle of the present invention can drive the first ratchet rod and the second ratchet rod to move up and down at the same time, thereby driving the ratchet wheel to rotate forward, thereby realizing the forward rotation of the reel shaft, reeling in the extension wire, facilitating wire reeling and avoiding entanglement between wires. When the first ratchet rod and the second ratchet rod are separated from the ratchet wheel at the same time, the reel shaft can rotate freely, and the extension wire can be conveniently released.

[0018] The fixing belt of the present invention can fix the portable shell on the electric pole. The fixing belt can be rolled up and released under the ratchet structure, thereby adjusting the use length of the fixing belt. It can be suitable for electric poles of different diameters and ensure the reliability of installation and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an axonometric diagram of a transformer outgoing line electrical quantity measuring device that is easy to operate according to the present invention; Figure 2 A cross-sectional view of a transformer outgoing line power measurement device that is easy to operate according to the present invention; Figure 3 The present invention is a transformer outgoing line power measurement device that is easy to control Figure 2 A cross-sectional view of the upper and middle shell; Figure 4 This is a schematic diagram of the arrangement of extension lines of a transformer outgoing line power measurement device that is easy to control according to the present invention; Figure 5 A schematic diagram of three transmission wheels of a transformer outgoing line electrical quantity measuring device that is easy to control according to the present invention; Figure 6 A top view of the installation of a winding shaft and a driving shaft of a transformer outgoing line electrical quantity measuring device that is easy to control according to the present invention; Figure 7 A schematic diagram of the separation of the winding shaft and the driving shaft of a transformer outgoing line power measurement device that is easy to control according to the present invention; Figure 8 The present invention is a cross-sectional view of the installation of a winding shaft and a driving shaft of a transformer outgoing line electrical quantity measuring device which is easy to operate.

[0020] Wherein: 1 standard electric meter, 2 clamp-type current transformer, 3 portable shell, 31 lower shell, 32 upper shell, 4 outer partition, 41 upper section, 42 lower section, 5 inner partition, 6 winding shaft, 7 conductive slip ring, 8 extension wire, 9 guide wheel, 91 shaft body, 92 wheel body, 10 opening, 11 transmission wheel, 12 ratchet, 13 wire-reeling handle, 14 first ratchet rod, 15 second ratchet rod, 16 limit rod, 17 fixing belt, 18 fixing hook, 19 winding shaft, 20 driving shaft, 201 hand-tightening section, 22 introduction section, 23 ratchet section, 24 pawl, 25 locking block, 26 electric pole. DETAILED DESCRIPTION

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0022] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0023] A transformer outgoing line power measurement device that is easy to operate, the power detection device includes a standard electric meter 1 and three clamp-type current transformers 2, which are the tools required for power detection. In order to facilitate the carrying and use of the tool, it also includes a portable shell 3, the above tool can be loaded into the portable shell 3, and it is convenient to carry at any time.

[0024] The portable shell 3 includes a lower shell 31 and an upper shell 32 that are hinged to each other, and the portable shell 3 can be opened and closed. The upper shell 32 and the lower shell 31 are both rectangular groove structures, and the standard meter 1 and the clamp-on current transformer are respectively embedded in the lower shell 31 and the upper shell 32, so that the standard meter 1 and the clamp-on current transformer are placed in different areas. The standard meter 1 and the clamp-on current transformer can be taken out from their respective shells.

[0025] An outer partition 4 and an inner partition 5 are sequentially arranged in the upper shell 32 from the outside to the inside. The outer partition 4 includes an upper section 41 and a lower section 42 formed in one piece. The longitudinal section of the upper section 41 is in the shape of 1, and the longitudinal section of the lower section 42 is in the shape of an inverted L. One end of the horizontal section of the lower section 42 is connected to the lower end of the upper section 41, and the vertical section of the lower section 42 is located outside the upper section 41. Then, the vertical section of the lower section 42 and the upper section 41 are arranged in parallel with each other, and the vertical section of the lower section 42 is closer to the opening position of the upper shell 32. Three clamp-type current transformers are placed side by side on the outside of the outer partition 4, and the clamp-type current transformers and the horizontal section of the upper section 41 are arranged up and down.

[0026] A reel 6 is rotatably sleeved on the inner partition 5, and the axial direction of the reel 6 is consistent with the thickness direction of the upper shell 32. The number of reel 6 and the clamp-on current transformer is equal and one-to-one. The reel 6 is in the shape of a hollow circular tube, and the reel 6 can rotate relative to the inner partition 5. One end of the reel 6 abuts against the outer partition 4, and the other end passes through the inner partition 5 and abuts against the side wall of the upper shell 32.

[0027] A conductive slip ring 7 is sleeved on each winding shaft 6, the rotating end of the conductive slip ring 7 is connected and fixed to the winding shaft 6, the fixed end of the conductive slip ring 7 is arranged on the inner partition 5, and the fixed end is connected to the standard electric meter 1 through a wire. After the wire is connected to the fixed end of the conductive slip ring 7, it extends out of the upper housing 32 and extends into the lower housing 31, and finally connected to the standard electric meter 1.

[0028] The portion of each reel 6 between the outer partition 4 and the inner partition 5 is wound with an extension wire 8, which is an electric wire and is wound along the circumference of the reel 6. One end of the extension wire 8 is connected to the clamp-type current transformer, and the other end radially penetrates the reel 6 and is connected to the rotating end of the conductive slip ring 7. The distance between the outer partition 4 and the inner partition 5 is greater than the diameter of the extension wire 8 and less than twice the diameter of the extension wire 8.

[0029] In order to achieve the connection between the extension line 8 and the clamp-on current transformer, an opening 10 is provided in the horizontal section of the lower section 42 of the outer partition 4, and the extension line 8 passes through the opening 10 and is connected to the clamp-on current transformer. In order to guide the extension line 8, a guide assembly is provided in the upper shell 32, and the guide assembly includes a guide wheel 9, which is rotatably arranged in the space between the lower section 42 of the outer partition 4 and the inner partition 5, and the guide wheel 9 includes an axle 91 and three wheel bodies 92 arranged at intervals on the axle 91, and the wheel bodies 92 correspond to the clamp-on current transformer one by one. The end of the extension line 8 away from the conductive slip ring 7 is wound downwardly around the guide wheel 9, and then passes upward through the opening 10 of the lower section 42 and is connected to the clamp-on current transformer, thereby achieving the electrical connection between the clamp-on current transformer and the conductor slip ring.

[0030] In order to realize linkage control of the three winding shafts 6, a section of each winding shaft 6 located inside the inner partition 5 is fixedly sleeved with a transmission wheel 11, and the three transmission wheels 11 are connected by belt or chain transmission, so that the three winding shafts 6 can rotate synchronously in the same direction.

[0031] In order to facilitate the driving of the winding shaft 6, a ratchet 12 is fixedly sleeved on a winding shaft 6 in the middle, and the rotation of the ratchet 12 drives the winding shaft 6 to rotate. A wire-reeling handle 13 is longitudinally slidably arranged on the upper part of the upper shell 32, and the sliding direction of the wire-reeling handle 13 is consistent with the radial direction of the ratchet 12. The wire-reeling handle 13 is in an N shape, and the horizontal section of the wire-reeling handle 13 extends out of the upper shell 32 and is located above the upper shell 32. The two vertical sections of the wire-reeling handle 13 are respectively located on both sides of the ratchet 12 and are respectively provided with a first ratchet rod 14 and a second ratchet rod 15, and the first ratchet rod 14 and the second ratchet rod 15 are arranged in a "" shape on both sides of the ratchet 12.

[0032] The upper ends of the first ratchet rod 14 and the second ratchet rod 15 are respectively hinged to the lower ends of the two vertical sections of the wire-winding handle 13, and torsion springs are arranged between the first ratchet rod 14, the second ratchet rod 15 and the wire-winding handle 13. The torsion spring drives the first ratchet rod 14 or the second ratchet rod 15 to rotate toward the ratchet wheel 12, ensuring that the lower ends of the two ratchet rods always have a tendency to move toward the ratchet wheel 12.

[0033] When the wire-reeling handle 13 is pressed down and the first ratchet rod 14 and the second ratchet rod 15 are driven to move downward, the lower end of the first ratchet rod 14 drives the ratchet wheel 12 to rotate forward, and then the three winding shafts 6 rotate forward at the same time. When the wire-reeling handle 13 is lifted up and the first ratchet rod 14 and the second ratchet rod 15 are driven to move upward, the lower end of the second ratchet rod 15 drives the ratchet wheel 12 to rotate forward, and the three winding shafts 6 also rotate forward at the same time. By repeatedly moving the wire-reeling handle 13 up and down, the winding shaft 6 can be urged to rotate forward all the time, so as to wind the winding extension wire 8.

[0034] If the extension line 8 needs to be released, the control of the ratchet 12 must be released, that is, the first ratchet rod 14 and the second ratchet rod 15 are no longer engaged with the ratchet 12. For this purpose, a limit rod 16 is provided on the inner side of the first ratchet rod 14 and the second ratchet rod 15, and the two limit rods 16 are arranged in an inverted figure eight shape. When the winding handle 13 drives the first ratchet rod 14 and the second ratchet rod 15 to move upward until the lower ends of the first ratchet rod 14 and the second ratchet rod 15 are disengaged from the ratchet 12, the limit rod 16 of the first ratchet rod 14 and the limit rod 16 of the second ratchet rod 15 abut against each other, and at this time, the lower ends of the first ratchet rod 14 and the second ratchet rod 15 are spaced apart and are respectively located on both sides of the axis of the ratchet 12. The ratchet 12 is in a free state, and the extension line 8 on the winding shaft 6 can be manually pulled out.

[0035] On the basis that the portable shell 3 can be conveniently carried and moved, in order to facilitate on-site detection, the portable shell 3 needs to be fixed on the electric pole 26. For this purpose, the power detection device also includes two sets of fixing components, and the portable shell 3 and the electric pole 26 are installed and fixed by using the two sets of fixing components. The two sets of fixing components are respectively located on both sides of the portable shell 3. The fixing components include a fixing belt 17 and a fixing hook 18. One end of the fixing belt 17 is connected to the bottom of the rear end of the upper shell 32, and the other end is connected to the fixing hook 18. The fixing hook 18 is buckled at the bottom of the rear end of the lower shell 31. When the power detection device is fixed to the electric pole 26, the upper shell 32 and the lower shell 31 are opened, so that the rear end face of the upper shell 32 and the end face of the lower shell 31 are attached to the circumferential outer wall of the electric pole 26, and the electric pole 26 is clamped by the fixing belt 17 to achieve the installation of the portable shell 3.

[0036] In order to ensure the tightness and reliability of the installation, the fixing assembly further includes a winding shaft 19, which is a hollow circular tube structure. The winding shaft 19 is rotatably arranged in the upper shell 32 and located on the inner side of the inner partition 5, and the fixing belt 17 is wound and stored in the winding shaft 19. A driving shaft 20 is arranged in the winding shaft 19, that is, the driving shaft 20 is axially slidably sleeved in the winding shaft 19, and then the driving shaft 20 can rotate in the winding shaft 19, and can also slide axially in the winding shaft 19.

[0037] The axial direction of the drive shaft 20 is consistent with the axial direction of the guide wheel 9. One end of the drive shaft 20 extends outward from the upper shell 32. The extended part of the drive shaft 20 is a hand-tightening section 201. The size of the hand-tightening section 201 is larger than the drive shaft 20. A ratchet and ratchet structure is provided between the drive shaft 20 and the winding shaft 19. The ratchet and ratchet structure prevents the fixing belt 17 on the winding shaft 19 from being released outward. Specifically, an introduction section 22 and a ratchet section 23 are provided in sequence from the outside to the inside at one end of the winding shaft 19. The inner diameter section of the introduction section 22 is a truncated cone with a larger outer side and a smaller inner side. The inner wall of the ratchet section 23 is ratchet-shaped. The ratchet section 23 is connected to the introduction section 22. A ratchet pawl 24 is provided on the drive shaft 20 to rotate through a torsion spring. The length of the ratchet section 23 is greater than the ratchet pawl 24, so that the ratchet pawl 24 can move axially in the ratchet section 23. At the same time, a locking block 25 is provided on the side wall of the upper shell 32 . One end of the driving shaft 20 is prism-shaped and can be inserted into the locking block 25 . At this time, the driving shaft 20 cannot rotate.

[0038] The drive shaft 20 is provided with a tape release state and a tape retracting state. When the drive shaft 20 slides inward, the drive shaft 20 is in the tape release state, and when the drive shaft 20 slides outward, the drive shaft 20 is in the tape retracting state. When the drive shaft 20 is in the tape release state: pulling out the drive shaft 20 causes the end of the drive shaft 20 to disengage from the locking block 25, and the pawl 24 moves to the introduction section 22. At this time, the ratchet tooth structure fails, and the fixed belt 17 can be released outward.

[0039] When the drive shaft 20 is in the belt-winding state: the drive shaft 20 is pressed inward to cause the pawl 24 to be located in the ratchet section 23. At this time, the ratchet tooth structure of the ratchet is effective, and the fixing belt 17 cannot be released outward. The drive shaft 20 can be rotated to drive the winding shaft 19 to rotate, thereby winding up the fixing belt 17, and then the drive shaft 20 is pressed again to cause its end to be inserted into the locking block 25, thereby fixing the drive shaft 20 and the winding shaft 19.

[0040] The principle of the present invention is as follows: after carrying the portable shell 3 to the site, first open the portable shell 3 and fix the portable shell 3 on the electric pole 26 by the fixing belt 17. Then pull the wire reel handle 13 upward until the first ratchet rod 14 and the second ratchet rod 15 are separated from the ratchet wheel 12. At this time, the extension cord 8 can be released freely. Since the extension cord 8 has a corresponding retractable path, it is not easy to be entangled. The worker uses a clamp-type current transformer in conjunction with a standard ammeter 1 to detect the amount of electricity. After the detection, the wire reel handle 13 is repeatedly pulled to prompt the first ratchet rod 14 and the second ratchet rod 15 to drive the ratchet wheel 12 to rotate forward, thereby realizing the winding of the extension cord 8 and ensuring the regularity of the extension cord 8.

[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 transformer outgoing line power measurement device that is easy to operate, the power detection device comprising a standard electric meter (1) and three clamp-type current transformers (2), characterized in that: It also comprises a portable shell (3), the portable shell (3) comprising a lower shell (31) and an upper shell (32) which are hinged to each other, the standard electric meter (1) and the clamp-on current transformer being respectively embedded in the lower shell (31) and the upper shell (32); An outer partition (4) and an inner partition (5) are sequentially arranged in the upper shell (32) from the outside to the inside, the clamp-on current transformer is placed outside the outer partition (4), the inner partition (5) is rotatably sleeved with a reel (6), the reel (6) is equal in number to the clamp-on current transformers and is arranged one-to-one, the reel (6) is in the shape of a hollow circular tube, a conductive slip ring (7) is arranged on the reel (6), an extension line (8) is wound around a section of the reel (6) between the outer partition (4) and the inner partition (5), one end of the extension line (8) is connected to the clamp-on current transformer, the other end passes through the reel (6) and is connected to the rotating end of the conductive slip ring (7), and the fixed end of the conductive slip ring (7) is connected to the standard electric meter (1); The distance between the outer partition (4) and the inner partition (5) is greater than the diameter of the extension line (8) and less than twice the diameter of the extension line (8).

2. The transformer outgoing line power measurement device that is easy to operate according to claim 1 is characterized in that: The outer partition (4) comprises an upper section (41) and a lower section (42) which are integrally formed, wherein the longitudinal section of the upper section (41) is in the shape of a "1", and the longitudinal section of the lower section (42) is in the shape of an inverted "L", wherein the horizontal section end of the lower section (42) is connected to the lower end of the upper section (41), and the vertical section is located outside the upper section (41); The reel (6) is rotatably disposed on the upper section (41), and the horizontal section of the lower section (42) is provided with an opening (10), and the extension line (8) passes through the opening (10) and is connected to the clamp-type current transformer.

3. The transformer outgoing line power measurement device that is easy to operate according to claim 2 is characterized in that: A guide assembly is arranged in the upper shell (32), and the guide assembly includes a guide wheel (9). The guide wheel (9) is rotatably arranged in the space between the lower section (42) of the outer partition (4) and the inner partition (5). The end of the extension line (8) away from the conductive slip ring (7) is wound downwardly around the guide wheel (9), and then passes upward through the opening (10) of the lower section (42) and is connected to the clamp-on current transformer.

4. The transformer outgoing line power measurement device that is easy to operate according to claim 1 is characterized in that: A section of the winding shaft (6) located on the inner side of the inner partition (5) is fixedly sleeved with a transmission wheel (11), and the three transmission wheels (11) are connected by belt or chain transmission, and the three winding shafts (6) rotate synchronously in the same direction.

5. The transformer outgoing line power measurement device that is easy to operate according to claim 4 is characterized in that: One of the winding shafts (6) is fixedly sleeved with a ratchet wheel (12), and a wire-reeling handle (13) is longitudinally slidably arranged on the upper part of the upper shell (32), the wire-reeling handle (13) is in an N-shape, the horizontal section of the wire-reeling handle (13) is located above the upper shell (32), the two vertical sections of the wire-reeling handle (13) are respectively located on both sides of the ratchet wheel (12) and are respectively provided with a first ratchet rod (14) and a second ratchet rod (15), the upper ends of the first ratchet rod (14) and the second ratchet rod (15) are respectively hinged to the lower ends of the two vertical sections of the wire-reeling handle (13), and a torsion spring is arranged between the first ratchet rod (14) and the second ratchet rod (15) and the wire-reeling handle (13), and the torsion spring drives the first ratchet rod (14) or the second ratchet rod (15) to rotate toward the ratchet wheel (12); When the wire-reeling handle (13) drives the first ratchet rod (14) and the second ratchet rod (15) to move downward, the lower end of the first ratchet rod (14) drives the ratchet wheel (12) to rotate forward; when the wire-reeling handle (13) drives the first ratchet rod (14) and the second ratchet rod (15) to move upward, the lower end of the second ratchet rod (15) drives the ratchet wheel (12) to rotate forward.

6. The transformer outgoing line power measurement device that is easy to operate according to claim 5 is characterized in that: A limiting rod (16) is provided inside the first ratchet rod (14) and the second ratchet rod (15); When the wire-reeling handle (13) drives the first ratchet rod (14) and the second ratchet rod (15) to move upward until the lower ends of the first ratchet rod (14) and the second ratchet rod (15) are separated from the ratchet wheel (12), the limiting rod (16) of the first ratchet rod (14) and the limiting rod (16) of the second ratchet rod (15) abut against each other, and at this time, the lower end of the first ratchet rod (14) and the lower end of the second ratchet rod (15) are spaced apart and are respectively located on both sides of the axis of the ratchet wheel (12).

7. The transformer outgoing line power measurement device that is easy to operate according to claim 1 is characterized in that: The power detection device further comprises two sets of fixing components, the two sets of fixing components are respectively located on both sides of the portable shell (3), the fixing components comprise a fixing belt (17) and a fixing hook (18), one end of the fixing belt (17) is connected to the rear end bottom of the upper shell (32), and the other end is connected to the fixing hook (18), and the fixing hook (18) is buckled to the rear end bottom of the lower shell (31); When the electric quantity detection device is fixed to the electric pole (26), the upper shell (32) and the lower shell (31) are opened, so that the rear end surface of the upper shell (32) and the end surface of the lower shell (31) are fitted to the circumferential outer wall of the electric pole (26), and the electric pole (26) is clamped by the fixing belt (17).

8. The transformer outgoing line power measurement device that is easy to operate according to claim 7 is characterized in that: The fixing assembly further comprises a winding shaft (19), the winding shaft (19) being rotatably disposed in the upper shell (32) and located on the inner side of the inner partition (5), and the fixing belt (17) being wound and stored on the winding shaft (19).

9. The transformer outgoing line power measurement device that is easy to operate according to claim 8 is characterized in that: The winding shaft (19) is a hollow circular tube structure, a driving shaft (20) is arranged inside the winding shaft (19), a ratchet structure is arranged between the driving shaft (20) and the winding shaft (19), the ratchet structure prevents the fixing belt (17) on the winding shaft (19) from being released outwards, and one end of the driving shaft (20) extends outwards from the upper shell (32); The drive shaft (20) is provided with a belt-releasing state and a belt-collecting state. When the drive shaft (20) is in the belt-releasing state, the ratchet wheel and ratchet tooth structure is invalid, and the fixed belt (17) can be released outwards. When the drive shaft (20) is in the belt-collecting state, the ratchet wheel and ratchet tooth structure is effective, and the fixed belt (17) cannot be released outwards. The drive shaft (20) is axially slidably sleeved inside the winding shaft (19); when the drive shaft (20) slides outward, the drive shaft (20) is in a tape unwinding state; when the drive shaft (20) slides inward, the drive shaft (20) is in a tape rewinding state.

10. The transformer outgoing line power measurement device that is easy to operate according to claim 9, characterized in that: The end of the winding shaft (19) is provided with an introduction section (22) and a ratchet section (23) in sequence from the outside to the inside, the introduction section (22) has an inner diameter cross-section in the shape of a truncated cone with a larger outer portion and a smaller inner portion, the inner wall of the ratchet section is in the shape of a ratchet (12), and a ratchet pawl (24) is provided on the drive shaft (20) to rotate via a torsion spring; When the drive shaft (20) is in a tape unwinding state, the pawl (24) is located in the introduction section (22); when the drive shaft (20) is in a tape rewinding state, the pawl (24) is located in the ratchet section (23).

Images