Power quality test equipment

Abstract

The present invention discloses a power quality testing device, including a detection seat, wherein the detection seat is threadedly connected with a clamping plate through an adjusting rod, one end of the clamping plate close to the adjusting rod is slidably connected to the detection seat, one end of the clamping plate away from the adjusting rod is meshedly connected to a terminal to be tested, the adjusting rod is rotatably connected with a plug rod through a transmission mechanism, one end of the plug rod is slidably connected to the detection seat, the other end of the plug rod is slidably connected to a detection terminal through a buffer rod, and the detection terminal and the terminal to be tested are arranged in coordination. The present invention provides a clamping plate with an engaging claw for the power quality testing tool, so that the operator can quickly and conveniently perform the positioning work of the detection terminal during the power quality testing work, effectively improve the test efficiency of the power quality, and avoid the safety hazards in the manual wiring test process, and is suitable for promotion within a certain range.

Description

Technical Field

[0001] The invention belongs to the technical field of power quality detection, and in particular relates to a power quality testing device. Background Art

[0002] Power quality refers to the quality of electric energy in the power system. Ideal electric energy should be a perfectly symmetrical sine wave. Some factors can cause the waveform to deviate from the symmetrical sine wave, which results in power quality problems. Power quality is not only related to the safe and economic operation of power grid enterprises, but also has a great impact on the safe operation of users and the quality of products. Therefore, power quality testing is obviously necessary. However, as the requirements for power quality testing continue to increase, the deficiencies in power quality test devices in actual use also need to be improved urgently.

[0003] In the prior art, due to limited conditions, most of the power quality testing work adopts a combination of alligator clips and single-core insulated copper wires to test the terminals under test during the actual testing process. The operation process is relatively complicated. This testing method not only greatly reduces the testing efficiency of the operator, but also has certain safety hazards, which affects the personal health of the operator.

[0004] To this end, we propose a power quality testing device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problem and to propose a portable power quality testing tool which can improve the testing efficiency of operators and reduce the potential safety hazards in the testing process.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The power quality testing device comprises a detection seat, wherein the detection seat is threadedly connected with a clamping plate through an adjusting rod, one end of the clamping plate close to the adjusting rod is slidably connected to the detection seat, and one end of the clamping plate away from the adjusting rod is meshedly connected to a terminal to be tested, the adjusting rod is rotatably connected with an insertion rod through a transmission mechanism, one end of the insertion rod is slidably connected to the detection seat, and the other end of the insertion rod is slidably connected to a detection terminal through a buffer rod, and the detection terminal and the terminal to be tested are arranged in coordination.

[0008] Preferably, a handle is provided at one end of the detection seat, and the other end of the detection seat is rotatably connected via a knob and an adjusting rod.

[0009] Preferably, the clamping plate adopts an L-shaped structure, the detection seat is symmetrically provided with movable grooves, one end of the clamping plate is slidably connected to the movable groove through a sliding rod, and the other end of the clamping plate is cooperatively connected to the terminal to be tested through an engaging claw.

[0010] Preferably, the transmission mechanism comprises a worm wheel and a threaded sleeve that are coaxially fixedly connected, the middle part of the adjusting rod adopts a worm structure, the worm and the worm wheel are meshingly connected, and the insert rod and the threaded sleeve are threadedly connected.

[0011] Preferably, an adapter is fixedly connected to one end of the insertion rod away from the detection terminal, the adapter adopts a U-shaped structure, an insulating block is wrapped around the outside of the adapter, the detection seat is provided with a limit groove, and the insulating block and the limit groove are slidably connected.

[0012] Preferably, the detection terminal adopts a disc-shaped structure, the end of the insertion rod away from the detection seat is provided with a slide groove, one end of the buffer rod is fixedly connected to the detection terminal, and the other end of the buffer rod is slidably connected to the slide groove through a buffer spring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By providing the power quality test tool with a clamping plate with engaging claws, the operator can quickly and conveniently locate the detection terminal during power quality detection, effectively improving the power quality test efficiency and avoiding safety hazards during manual wiring testing.

[0015] 2. By setting an adapter for the detection terminal, the device can be flexibly disassembled and used with various types of test pens, which improves the flexibility of the device and avoids the wear of the pens affecting the test results. It is suitable for promotion within a certain range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the power quality testing device proposed by the present invention;

[0017] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 This is a structural schematic diagram of the transmission mechanism in the power quality testing device proposed by the present invention.

[0019] In the figure: 1 detection seat, 11 handle, 12 movable groove, 13 limit groove, 2 adjustment rod, 21 knob, 22 worm, 3 clamp, 31 slide bar, 32 engagement claw, 4 tested terminal, 5 transmission mechanism, 51 worm gear, 52 threaded sleeve, 6 plug rod, 61 adapter, 62 insulating block, 63 slide groove, 7 buffer rod, 71 buffer spring, 8 detection terminal. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-3 The power quality testing device includes a detection seat 1, which is threadedly connected to a clamping plate 3 through an adjusting rod 2. It should be noted that the adjusting rod 2 is provided with two sets of reverse threads, which cooperate with the threaded holes of the clamping plate 3 to move toward one end closer to each other or move away from one end. A handle 11 is provided at one end of the detection seat 1 to facilitate the operator's holding action. The other end of the detection seat 1 is rotatably connected to the adjusting rod 2 through a knob 21, thereby improving the convenience of using the device.

[0022] One end of the clamp 3 close to the adjusting rod 2 is slidably connected to the detection seat 1, and the end of the clamp 3 away from the adjusting rod 2 is meshed and connected to the terminal 4 to be tested. It should be noted that the clamp 3 adopts an L-shaped structure, the detection seat 1 is symmetrically provided with movable grooves 12, the clamp 3 is provided with a sliding hole, one end of the clamp 3 is slidably connected to the sliding hole through the sliding rod 31, and the other end of the clamp 3 is cooperatively connected to the terminal 4 to be tested through the meshing claw 32, which is used for the positioning and fixing of the device.

[0023] The adjusting rod 2 is rotatably connected to the insert rod 6 through the transmission mechanism 5. It should be noted that the transmission mechanism 5 includes a worm wheel 51 and a threaded sleeve 52 that are coaxially fixedly connected. The adjusting rod 2 and the threaded sleeve 52 are both rotatably connected through bearings and the detection seat 1. The middle part of the adjusting rod 2 adopts a worm 22 structure. The worm 22 and the worm wheel 51 are meshed and connected. The insert rod 6 is threadedly connected to the threaded sleeve 52 through an external thread.

[0024] One end of the plug rod 6 is slidably connected to the detection seat 1. It is worth mentioning that the end of the plug rod 6 away from the detection terminal 8 is fixedly connected with an adapter 61. The adapter 61 adopts a U-shaped structure and is used for the adapter work of the test lead. The outside of the adapter 61 is wrapped with an insulating block 62 to avoid leakage. The detection seat 1 is provided with a limit groove 13. The insulating block 62 and the limit groove 13 are slidably connected to ensure that the plug rod 6 will not rotate during the positioning process.

[0025] The other end of the insertion rod 6 is slidably connected to the detection terminal 8 through the buffer rod 7, and the detection terminal 8 and the terminal 4 to be tested are arranged in coordination. It should be noted that the detection terminal 8 adopts a disc-shaped structure, and a slide groove 63 is provided at the end of the insertion rod 6 away from the detection seat 1. One end of the buffer rod 7 is fixedly connected to the detection terminal 8, and the other end of the buffer rod 7 is slidably connected to the slide groove 63 through a buffer spring 71. The detection terminal 8 is used for equipment testing through the socket between the buffer spring 71 and the terminal 4 to be tested.

[0026] The operating principle of the present invention is now described as follows:

[0027] When the present invention is used, the operator transports the device to the test site, inserts a test lead of the measuring instrument into the adapter 61, and electrically connects the test lead and the adapter 61 through the multimeter. After the test lead is connected, the detection seat 1 is parallel to the terminal 4 to be tested through the handle 11, and the knob 21 is rotated to make the clamping plate 3 move toward the end close to each other through the adjusting rod 2. At this time, the end of the clamping plate 3 close to the adjusting rod 2 slides through the sliding rod 31, and the adjusting rod 2 drives the worm wheel 51 to rotate through the worm 22. The worm wheel 51 drives the insertion rod 6 to move through the threaded sleeve 52 that is coaxially fixed. One end of the insertion rod 6 is insulated. The edge block 62 and the limit groove 13 slide, and the detection terminal 8 movably connected at the other end of the insertion rod 6 is inserted into the center hole of the terminal 4 to be measured through the buffer rod 7. The knob 21 is continuously rotated until the clamping plate 3 is away from the engaging claw 32 at one end of the adjusting rod 2 and the terminal 4 to be measured is engaged and fixed, and the handle 11 is shaken and adjusted to ensure that the engaging claw 32 and the terminal 4 to be measured are stably connected. At this time, the detection terminal 8 is stably connected to the center hole between the buffer spring 71 and the terminal 4 to be measured. Then the other test lead of the measuring instrument is connected to the measured point of the connected device. The instrument data is read after it is stable to complete the detection of power quality.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power quality testing device, comprising a testing seat (1), characterized in that: The detection seat (1) is threadedly connected to a clamping plate (3) via an adjusting rod (2); one end of the clamping plate (3) close to the adjusting rod (2) is slidably connected to the detection seat (1); one end of the clamping plate (3) away from the adjusting rod (2) is meshedly connected to the terminal (4) to be tested; the adjusting rod (2) is rotatably connected to an insertion rod (6) via a transmission mechanism (5); one end of the insertion rod (6) is slidably connected to the detection seat (1); the other end of the insertion rod (6) is slidably connected to a detection terminal (8) via a buffer rod (7); the detection terminal (8) and the terminal (4) to be tested are arranged in coordination; One end of the detection seat (1) is provided with a handle (11), and the other end of the detection seat (1) is rotatably connected to the adjustment rod (2) via a knob (21); The transmission mechanism (5) comprises a worm wheel (51) and a threaded sleeve (52) which are coaxially fixedly connected, the middle portion of the adjustment rod (2) adopts a worm (22) structure, the worm (22) and the worm wheel (51) are meshingly connected, and the insertion rod (6) and the threaded sleeve (52) are threadedly connected; The detection seat (1) is parallel to the terminal (4) to be tested by means of the handle (11), and the knob (21) is rotated to make the clamping plate (3) move toward one end closer to each other through the adjusting rod (2). At this time, the end of the clamping plate (3) close to the adjusting rod (2) slides through the sliding rod (31), and the adjusting rod (2) drives the worm wheel (51) to rotate through the worm (22). The worm wheel (51) drives the insertion rod (6) to move through the coaxially fixed threaded sleeve (52), and one end of the insertion rod (6) is connected to the insulating block (62) and the limit The groove (13) is slid, and the detection terminal (8) movably connected to the other end of the insertion rod (6) is inserted into the center hole of the terminal to be tested (4) through the buffer rod (7). The knob (21) is continuously rotated until the clamping plate (3) is away from the meshing claw (32) at one end of the adjustment rod (2) and the terminal to be tested (4) are meshed and fixed, and the handle (11) is shaken and adjusted to ensure that the meshing claw (32) and the terminal to be tested (4) are stably connected. At this time, the detection terminal (8) is stably connected to the center hole between the buffer spring (71) and the terminal to be tested (4).

2. The power quality testing device according to claim 1, characterized in that: The clamping plate (3) adopts an L-shaped structure, the detection seat (1) is symmetrically provided with movable grooves (12), one end of the clamping plate (3) is slidably connected to the movable groove (12) via a sliding rod (31), and the other end of the clamping plate (3) is cooperatively connected to the terminal (4) to be tested via an engaging claw (32).

3. The power quality testing device according to claim 1, characterized in that: An adapter (61) is fixedly connected to one end of the insertion rod (6) away from the detection terminal (8); the adapter (61) has a U-shaped structure; an insulating block (62) is wrapped around the outside of the adapter (61); the detection seat (1) is provided with a limiting groove (13); and the insulating block (62) and the limiting groove (13) are slidably connected.

4. The power quality testing device according to claim 1, characterized in that: The detection terminal (8) has a disc-shaped structure, and one end of the insertion rod (6) away from the detection seat (1) is provided with a slide groove (63). One end of the buffer rod (7) is fixedly connected to the detection terminal (8), and the other end of the buffer rod (7) is slidably connected to the slide groove (63) via a buffer spring (71).

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