A new high-voltage switch characteristic tester

Abstract

The utility model relates to test appearance technical field especially relates to a novel high -voltage switch characteristic tester. Its technical scheme includes box, box cover, calliper no.

Description

Technical Field

[0001] This utility model relates to the field of testing instrument technology, and in particular to a novel high-voltage switch characteristic tester. Background Technology

[0002] The high-voltage switch characteristic tester is a professional instrument used to test the mechanical and electrical characteristics of power equipment such as high-voltage circuit breakers and disconnectors. It is mainly used to measure parameters such as switch opening and closing time, synchronicity, travel speed, bounce time, and contact resistance. When using it, select the circuit breaker type (vacuum, SF6, or oil switch), input the total travel and overtravel parameters of the switch, set the opening, closing, or opening-closing-opening cycle test, start the opening or closing action of the switch through the instrument, automatically record dynamic parameters, and the instrument synchronously captures data such as time, travel curve, and coil current waveform. Check the opening and closing time, synchronicity error, maximum speed, bounce number, etc., and analyze whether the travel and time curves meet the standards.

[0003] During use, the test clamp is connected to the measuring instrument and the high-voltage switch via a power cord. However, most existing test clamps are fitted onto the outer wall of the high-voltage switch's power terminal and rely on the torsion spring in the clamp housing as a support structure. The independent elastic structure is at risk of detachment. Therefore, we propose a new type of high-voltage switch characteristic tester to solve the existing problems. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a novel high-voltage switch characteristic tester.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel high-voltage switch characteristic tester, comprising a housing, a cover, a first clamp, a second clamp, and a clamping rod. The cover is rotatably mounted on the upper end of the housing. The first clamp and the second clamp are disposed on one side of the housing. The first clamp and the second clamp are connected to the housing via connecting wires. One end of the first clamp is provided with a clamp handle, and one end of the second clamp is provided with a clamp handle. One end of the first clamp handle is provided with a first handle, and one end of the second clamp handle is provided with a handle. Handle 2, one end of the handle 2 has an internal mounting groove, the mounting groove has a rotatable mounting shaft 3, the outer wall of the mounting shaft 3 is sleeved with a locking rod, the lower end of the locking rod is provided with a locking block, one end of the clamp handle 1 has a locking groove for engaging with the locking block, the outer side of the mounting shaft 3 is sleeved with a torsion spring 3, the two ends of which are respectively connected to the locking rod and the inner wall of the mounting groove, the inner wall of the mounting groove 3 is provided with a limiting block located on one side of the locking rod, and the clamp handle 1 and clamp handle 2 are rotatably mounted between the clamp handle 1 and the clamp handle 2.

[0006] Preferably, the outer wall of the lid is provided with symmetrically distributed positioning sleeves, and the outer wall of the box is provided with symmetrically distributed guide plates. A pin is slidably installed inside the guide plate, and it is slidably inserted into the positioning sleeve. The pin receives sliding support through the guide plate, and after being inserted into the positioning sleeve, it fixes the lid and the box together.

[0007] Preferably, a handle is provided at one end of the pin, a positioning ring is sleeved on the outer wall of the pin, and a spring is provided between the positioning ring and the guide plate, sleeved on the outside of the pin. The elastic force of the spring acts on the pin through the positioning ring, and the pin can be easily pulled by gripping the handle.

[0008] Preferably, the box cover has a storage cavity inside, and the storage cavity has symmetrically distributed inner plates. The outer wall of each inner plate has a mounting shaft rotatably mounted inside the storage cavity. The storage cavity is used to store insulated gloves, test clamps, and other equipment used for testing.

[0009] Preferably, each inner panel is equipped with a pull rope at its front end, and a torsion spring is sleeved on the outer side of the mounting shaft, with its two ends connected to the inner panel and the inner wall of the storage cavity, respectively. Gripping the pull rope facilitates applying pulling force to the inner panel, and the mounting shaft receives torsional elastic support through the torsion springs, allowing the inner panel to close automatically after opening.

[0010] Preferably, the first and second calipers are internally fitted with sliding sleeves arranged in a circular array. A pressure rod is slidably mounted inside each sliding sleeve. One end of the pressure rod is provided with a contact block. A support ring is sleeved on the outer wall of the pressure rod. A second spring, sleeved on the outside of the pressure rod, is disposed between the support ring and the first caliper. Similarly, a second spring, sleeved on the outside of the pressure rod, is disposed between the support ring and the second caliper. The pressure rod is slidably mounted inside the first and second calipers via the sliding sleeves. The elastic force of the second spring acts on the contact block through the support ring, electrically connecting it to the contact terminal.

[0011] Preferably, the second clamp handle has an internal assembly groove, and the first clamp handle is rotatably mounted inside the assembly groove. The first and second clamp handles are installed crosswise, with the first clamp handle rotatably mounted inside the second clamp handle via the assembly groove.

[0012] Preferably, a torsion spring is sleeved on the outer side of the mounting shaft two, with its two ends respectively connected to clamp handle one and clamp handle two. The mounting shaft two receives torsional elastic support through the torsion spring two. After clamp handle one and clamp handle two rotate through the mounting shaft two, they are supported by the elastic force of the torsion spring two, so that clamp one and clamp two are sleeved on the outside of the electrical terminal.

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

[0014] This invention utilizes a torsion spring for torsional elastic support and consists of clamps one and two. The clamps are held on the terminals of a high-voltage switch. After the clamps are fitted, the clamp handles one and two, which drive clamps one and two to open and close relative to each other, are fixed by a locking block. After the locking block is inserted into the slot, clamps one and two are connected together by a locking rod, preventing clamps one and two from rotating arbitrarily. This ensures that the clamps hold the terminals securely and improves the stability of high-voltage switch characteristic testing. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front-view perspective three-dimensional structural diagram of the box lid of this utility model;

[0017] Figure 3 This is a front-view perspective three-dimensional structural diagram of the pin of this utility model;

[0018] Figure 4 This is a front-view three-dimensional structural diagram of caliper one and caliper two of this utility model;

[0019] Figure 5 This is a front-view three-dimensional structural diagram of the clamp rod of this utility model.

[0020] Reference numerals in the attached diagram: 1. Box body; 2. Box cover; 3. Inner panel; 4. Pin; 5. Positioning sleeve; 6. Mounting shaft one; 7. Torsion spring one; 8. Pull rope; 9. Handle; 10. Guide plate; 11. Spring one; 12. Positioning ring; 13. Storage cavity; 14. Pressure rod; 15. Caliper one; 16. Caliper two; 17. Sliding sleeve; 18. Spring two; 19. Connecting block; 20. Support ring; 21. Connecting wire; 22. Pliers handle one; 23. Pliers handle two; 24. Clamping rod; 25. Torsion spring two; 26. Assembly slot; 27. Mounting shaft two; 28. Slot; 29. ​​Clamping block; 30. Mounting slot; 31. Mounting shaft three; 32. Torsion spring three; 33. Limiting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5As shown, this utility model proposes a novel high-voltage switch characteristic tester, comprising a housing 1, a housing cover 2, a clamp 15, a clamp 26, and a clamping rod 24. The housing cover 2 is rotatably mounted on the upper end of the housing 1. The clamp 15 and clamp 26 are arranged on one side of the housing 1, and are connected to the housing 1 via a connecting wire 21. One end of the clamp 15 is provided with a clamp handle 22, and one end of the clamp 26 is provided with a clamp handle 23. One end of the clamp handle 22 is provided with a handle 91, and one end of the clamp handle 23 is provided with a handle 92. An installation groove 30 is provided inside one end, and an installation shaft 31 is rotatably installed inside the installation groove 30. A locking rod 24 is sleeved on the outer wall of the installation shaft 31. A locking block 29 is provided on one side of the lower end of the locking rod 24. A locking groove 28 is provided at one end of the clamp handle 22 to engage with the locking block 29. A torsion spring 32 is sleeved on the outer side of the installation shaft 31, with its two ends connected to the locking rod 24 and the inner wall of the installation groove 30 respectively. A limiting block 33 is provided on one side of the locking rod 24 on the inner wall of the installation groove 30. An installation shaft 27 is rotatably installed between the clamp handle 22 and the clamp handle 23.

[0023] The outer wall of the box cover 2 is provided with symmetrically distributed positioning sleeves 5, and the outer wall of the box body 1 is provided with symmetrically distributed guide plates 10. Inside the guide plate 10, there are slidably installed pins 4 that are slidably inserted into the positioning sleeves 5.

[0024] A handle 9 is provided at one end of the pin 4, and a positioning ring 12 is sleeved on the outer wall of the pin 4. A spring 11 is sleeved on the outside of the pin 4 between the positioning ring 12 and the guide plate 10.

[0025] The box cover 2 has a storage cavity 13 inside, and the storage cavity 13 has symmetrically distributed inner plates 3 inside. The outer wall of the inner plates 3 has a mounting shaft 6 that is rotatably installed inside the storage cavity 13.

[0026] Pull ropes 8 are provided at the front end of the inner plate 3, and torsion springs 7 are sleeved on the outside of the mounting shaft 6, with both ends connected to the inner plate 3 and the inner wall of the storage cavity 13 respectively.

[0027] The caliper 15 and caliper 2 16 are internally fitted with sliding sleeves 17 arranged in a ring array. A pressure rod 14 is slidably installed inside the sliding sleeve 17. A power contact block 19 is provided at one end of the pressure rod 14. A support ring 20 is sleeved on the outer wall of the pressure rod 14. A spring 2 18 is sleeved on the outside of the pressure rod 14 between the support ring 20 and caliper 15. A spring 2 18 is sleeved on the outside of the pressure rod 14 between the support ring 20 and caliper 2 16.

[0028] The second clamp 23 has an assembly slot 26 inside, and the first clamp 22 is rotatably installed inside the assembly slot 26.

[0029] A torsion spring 25 is sleeved on the outer side of the mounting shaft 27, with its two ends connected to the clamp handle 22 and the clamp handle 23 respectively;

[0030] Based on the implementation steps of Example 1: Hold the handle 9 on the outer wall of the box cover 2, place the closed box 1 flat on the operating table, pull the pin 4 outward to disengage it from the positioning sleeve 5, release the lock between the box cover 2 and the box 1, flip the box cover 2 upward to the vertical state, the inner plate 3 in the storage cavity 13 closes under the action of the torsion spring 7, and the inner plate 3 unfolds relative to each other by pulling the pull rope 8, revealing the stored insulating gloves and test accessories.

[0031] Select clamps 15 and 16 that match the high-voltage switch terminals. Spread clamp handles 22 and 23 crosswise via mounting shaft 27. Fit clamps 15 and 16 onto the outside of the terminals. Connect the terminal block 19. Rotate the lever 24 around mounting shaft 31. After the lever 24 engages with the limit block 33, the lever 24 inserts into the slot 28. The elastic force of torsion spring 32 supports the lever 29. The mechanical engagement between the lever 29 and the slot 28 locks the positions of clamp handles 22 and 23.

[0032] The pressure rod 14 pushes the contact block 19 to fit tightly against the contact terminal under the action of the second spring 18, ensuring the reliability of conductivity. The circuit breaker type is selected through the control panel of the box 1, the stroke parameters are input and the test mode is set. After the test is started, the instrument automatically records the time, stroke curve, coil current waveform and number of bounces, and generates an analysis report on the display screen. After the test is completed, the clamp rod 24 is pressed to make the clamp block 29 disengage from the slot 28. The clamp handle 1 22 and clamp handle 23 automatically open under the action of the second torsion spring 25. The clamp is removed and the contact wire 21 is tidied. The inner plate 3 is pressed into the storage cavity 13. The pin 4 is inserted into the positioning sleeve 5 under the action of the spring to lock the box cover 2.

[0033] The clamp lever 24 achieves a rigid connection of the clamp handle through the wedge-shaped engagement of the clamp block 29 and the clamp slot 28, replacing the traditional single torsion spring support structure. The limit block 33 prevents the clamp lever 24 from rotating excessively, ensuring clamping accuracy and solving the problem of easy loosening of the test clamp under high-voltage vibration environment. The surface of the electrical contact block 19 is silver-plated and designed as an arc-shaped contact surface, which can automatically compensate for the size deviation of the electrical contact terminal, stabilize the contact resistance, and improve the accuracy of test data.

[0034] The storage chamber 13 has a built-in double inner plate 3 structure, which is automatically opened and closed by torsion spring 7. The pull rope 8 design makes it easy to put on and take off the insulating gloves with one hand. The connecting wire 21 is stored with a magnetic cable reel to avoid cable tangling. Traditional test clamps rely on a single torsion spring to provide clamping force, which is prone to poor contact or detachment in the severe vibration generated by the opening and closing of high voltage switches. This design improves the vibration resistance level through the mechanical interlocking structure of the clamp 24, and completely eliminates the risk of test interruption.

[0035] The rigid connection between the grounding block 19 and the terminal prevents the generation of electric arcs. The coating on the surface of the pressure rod 14 is adapted to harsh working conditions such as high altitude and coastal areas, expanding the application scenarios of the equipment. While retaining the core functions of the high voltage switch characteristic tester, it solves the reliability problem in the use of the tester.

[0036] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel high-voltage switch characteristic tester, comprising a housing (1), a housing cover (2), a first clamp (15), a second clamp (16), and a clamping rod (24), characterized in that: The box body (1) is rotatably mounted with a box cover (2). A clamp first (15) and a clamp second (16) are provided on one side of the box body (1). The clamp first (15) and the clamp second (16) are connected to the box body (1) via a connecting wire (21). One end of the clamp first (15) is provided with a clamp handle first (22), and one end of the clamp second (16) is provided with a clamp handle second (23). One end of the clamp handle first (22) is provided with a handle (9) first, and one end of the clamp handle second (23) is provided with a handle (9) second. One end of the handle (9) second has an internal mounting groove (30). The mounting groove (30) is rotated inside. The mounting shaft is mounted on a third mounting shaft (31). A locking rod (24) is sleeved on the outer wall of the mounting shaft (31). A locking block (29) is provided on one side of the lower end of the locking rod (24). A locking groove (28) is provided at one end of the clamp handle (22) to engage with the locking block (29). A torsion spring (32) is sleeved on the outer side of the mounting shaft (31) and its two ends are respectively connected to the inner wall of the locking rod (24) and the mounting groove (30). A limiting block (33) is provided on the inner wall of the mounting groove (30) on one side of the locking rod (24). A second mounting shaft (27) is rotatably mounted between the first clamp handle (22) and the second clamp handle (23).

2. The novel high-voltage switch characteristic tester according to claim 1, characterized in that: The outer wall of the box cover (2) is provided with symmetrically distributed positioning sleeves (5), and the outer wall of the box body (1) is provided with symmetrically distributed guide plates (10). The guide plates (10) are slidably installed with pins (4) that are slidably inserted into the positioning sleeves (5).

3. The novel high-voltage switch characteristic tester according to claim 2, characterized in that: A handle (9) is provided at one end of the pin (4), a positioning ring (12) is sleeved on the outer wall of the pin (4), and a spring (11) sleeved on the outside of the pin (4) is provided between the positioning ring (12) and the guide plate (10).

4. The novel high-voltage switch characteristic tester according to claim 1, characterized in that: The box cover (2) has a storage cavity (13) inside, and the storage cavity (13) has symmetrically distributed inner plates (3) inside. The outer wall of the inner plate (3) has an installation shaft (6) that is rotatably installed inside the storage cavity (13).

5. A novel high-voltage switch characteristic tester according to claim 4, characterized in that: Each inner plate (3) is provided with a pull rope (8) at its front end, and a torsion spring (7) is sleeved on the outside of the mounting shaft (6) with its two ends connected to the inner plate (3) and the inner wall of the storage cavity (13) respectively.

6. A novel high-voltage switch characteristic tester according to claim 1, characterized in that: The first caliper (15) and the second caliper (16) are internally fitted with sliding sleeves (17) arranged in a ring array. A pressure rod (14) is slidably installed inside the sliding sleeve (17). A contact block (19) is provided at one end of the pressure rod (14). A support ring (20) is sleeved on the outer wall of the pressure rod (14). A second spring (18) is sleeved on the outside of the pressure rod (14) between the support ring (20) and the first caliper (15). A second spring (18) is sleeved on the outside of the pressure rod (14) between the support ring (20) and the second caliper (16).

7. A novel high-voltage switch characteristic tester according to claim 1, characterized in that: The second clamp (23) has an assembly slot (26) inside, and the first clamp (22) is rotatably installed inside the assembly slot (26).

8. A novel high-voltage switch characteristic tester according to claim 1, characterized in that: The mounting shaft 2 (27) is sleeved with a torsion spring 2 (25) with its two ends connected to the clamp handle 1 (22) and the clamp handle 2 (23) respectively.

Images