Power grid control protection equipment test tool

Abstract

The utility model relates to the technical field of test tools, and discloses a power grid control protection equipment test tool which comprises a base, and fixing frames are fixedly installed behind the left side and the right side of the top end of the base. Through the arrangement of the first moving rods, the circular shafts, the movable rods and the moving plates, due to the fact that the back faces of the two first moving blocks make contact with the fixed plate, when the double-shaft motor operates, the two threaded rods enable the two moving plates to move oppositely through the two first moving blocks in the rotating process; at the moment, the interiors of the two moving plates extrude the outer surfaces of four circular shafts during opposite movement, the four circular shafts drive four first moving rods to rotate with the hinged positions of the interiors of hinge blocks as the axes, and meanwhile the four circular shafts drive four movable rods to move during rotation; at the moment, the other ends of the four movable rods push the two clamping blocks to move back to back, and the test plate is unfixed in the back-to-back movement of the two clamping blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of testing tooling, and more specifically, to a testing tooling for power grid control and protection equipment. Background Art

[0002] Grid control protection equipment is the most common protection device in power grid lines. It covers multiple protection devices such as transformer protection, busbar protection, capacitor protection, low-voltage standby automatic protection, feeder protection, etc. It relies on monitoring current and voltage and adopts three-phase reclosing technology to ensure smooth and unobstructed line operation.

[0003] When operators need to test power grid control and protection equipment, test fixtures are often used to perform power-on detection on the protection equipment for subsequent processing and sale. Although the existing test fixtures have basic testing functions in actual use, since the power grid control and protection equipment covers multiple protection devices with different structures, operators need to manually replace the test board for different protection devices to complete the test work. Since the test board is often fixed to the test fixture by nuts, it is time-consuming and laborious for operators to replace the test board, which reduces the operator's work efficiency and brings inconvenience to the operator's operation. Therefore, it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a test fixture for power grid control and protection equipment, which has the advantage of convenient replacement of test boards.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a test tool for power grid control and protection equipment, comprising:

[0006] A base, wherein a fixing frame is fixedly installed at the rear of the left and right sides of the top of the base, an arc-shaped block is fixedly installed at the bottom end of the front of the fixing frame, a first round rod is movably sleeved inside the arc-shaped block, and a fixing rod is fixedly sleeved on the outer surface of the first round rod;

[0007] A driving mechanism, the driving mechanism being arranged on the back side of the fixing rod;

[0008] A fixing mechanism, the fixing mechanism being arranged at the bottom end of the first round rod;

[0009] In which, the fixing mechanism includes a hinge block, the top of the hinge block is fixedly connected to the bottom end of the first round rod and the fixed rod respectively, the front and rear sides inside the left and right ends of the hinge block are hinged with the first moving rod, the other end of the first moving rod is movably sleeved with a round shaft, the outer surface of the round shaft is movably sleeved with a movable rod, the top of the first moving rod is movably connected with a moving plate, the inside of the moving plate is movably connected with the outer surface of the round shaft, the other end of the movable rod is movably sleeved with a clamping block, the number of the clamping blocks is two, and a test plate is movably connected between the two clamping blocks.

[0010] As a preferred technical solution of the present invention, the driving mechanism includes:

[0011] A round block, the front side of the round block is fixedly connected to the back side of the fixed rod, the back side of the round block is fixedly connected to a fixed plate, a dual-axis motor is fixedly sleeved inside the round block, the other end of the dual-axis motor output shaft is fixedly sleeved with a threaded rod, and the other end of the threaded rod is movably connected to the inside of the fixed plate.

[0012] The first moving block, the interior of the first moving block is threadedly sleeved with the outer surface of the threaded rod, the back of the first moving block is movably connected to the interior of the fixed plate, and the front of the first moving block is fixedly connected to the back of the moving plate.

[0013] As a preferred technical solution of the present invention, a movable block is hinged inside the top end of the first round rod, a rotating block is hinged at the top end of the movable block, a fixed block is hinged at the bottom end of the rotating block, the back end of the fixed block is fixedly connected to the front end of the fixed frame, and a handle is fixedly installed inside the top end of the rotating block.

[0014] As a preferred technical solution of the present invention, cylinders are fixedly installed on the front and rear ends of the left and right sides of the top of the base, and a square plate is movably sleeved on the outer surface of the cylinder.

[0015] As a preferred technical solution of the present invention, a spring is movably sleeved on the outer surface of the cylinder, the bottom end of the spring is fixedly connected to the top end of the base, and the top end of the spring is fixedly connected to the bottom end of the square plate.

[0016] As a preferred technical solution of the present invention, a square rod is fixedly installed on the front of the square plate, and limiting grooves are provided on the left and right sides of the back of the square rod.

[0017] As a preferred technical solution of the present invention, a long plate is fixedly installed in the center behind the bottom end of the square plate, a vertical plate is fixedly installed behind the top end of the long plate, and a pneumatic cylinder is fixedly installed on the front of the vertical plate.

[0018] As a preferred technical solution of the present invention, a second motion rod is fixedly installed at one front end of the pneumatic cylinder, and an extrusion shaft is fixedly installed inside the second motion rod.

[0019] As an optimal technical solution of the present invention, a second round rod is fixedly installed on the left and right sides of the top of the long board, a rotating rod is movably sleeved on the outer surface of the second round rod, the interior of the rotating rod is movably connected to the outer surface of the second motion rod, and an extrusion rod is fixedly sleeved on the interior of the other end of the rotating rod.

[0020] As a preferred technical solution of the present invention, the other end of the rotating rod is internally movably connected to a clamping rod, the interior of the clamping rod is movably connected to the outer surface of the extrusion rod, the bottom end of the clamping rod is movably connected to the top end of the square plate, and a second moving block is fixedly installed on the front side of the clamping rod, and the outer surface of the second moving block is movably connected to the interior of the limit slot.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The utility model is provided with a first moving rod, a circular shaft, a movable rod and a moving plate. Since the back sides of the two first moving blocks are in contact with the fixed plate, when the dual-axis motor is running, the two threaded rods will pass through the two first moving blocks during rotation to make the two moving plates move away from each other. At this time, the interior of the two moving plates will squeeze the outer surfaces of the four circular shafts during the movement away from each other. Since the other ends of the four first moving rods are hinged to the interior of the hinge block, the four circular shafts will drive the four first moving rods to rotate with the hinges with the interior of the hinge block as the axis. At the same time, the four circular shafts will drive the four movable rods to move during rotation. At this time, the other ends of the four movable rods will push the two clamping blocks to move away from each other. At this time, the test plate will be released during the movement away from each other of the two clamping blocks.

[0023] 2. The utility model is provided with a pneumatic cylinder, an extrusion shaft, a rotating rod and a clamping rod. When the pneumatic cylinder is running, the other end of the pneumatic cylinder will drive the four extrusion shafts to move forward through the second moving rod. At this time, the extrusion shaft will squeeze and push the outer surface of the rotating rod during the forward movement. Since the outer surfaces of the two second round rods are movably socketed with the inner parts of the two rotating rods, the two rotating rods will drive the two extrusion rods to rotate in opposite directions with the two second round rods as the axis. At this time, the two extrusion rods will squeeze the insides of the two clamping rods to make the two clamping rods move. Due to the limiting effect of the two limit grooves, the two clamping rods will drive the two second moving blocks to move toward each other. At this time, the two clamping rods will clamp the power grid control and protection equipment during the opposite movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0026] Figure 3 This is a schematic cross-sectional view of the utility model;

[0027] Figure 4 This is a schematic cross-sectional view of the dual-axis motor of the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of the sports board of the present invention;

[0029] Figure 6 This is a schematic cross-sectional structural diagram of the clamping rod of the present invention.

[0030] In the figure: 1. base; 2. fixing frame; 3. arc block; 4. first round rod; 5. fixing rod; 6. hinge block; 7. first moving rod; 8. round shaft; 9. movable rod; 10. moving plate; 11. clamping block; 12. round block; 13. fixing plate; 14. dual-axis motor; 15. threaded rod; 16. first moving block; 17. movable block; 18. rotating block; 19. fixed block; 20. handle; 21. cylinder; 22. square plate; 23. spring; 24. square rod; 25. limit groove; 26. long plate; 27. vertical plate; 28. pneumatic cylinder; 29. ​​second moving rod; 30. extrusion shaft; 31. second round rod; 32. rotating rod; 33. clamping rod; 34. second moving block; 35. test plate; 36. extrusion rod. DETAILED DESCRIPTION

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

[0032] like Figures 1 to 6 As shown, the utility model provides a power grid control and protection equipment testing tool, including:

[0033] A base 1, a fixing frame 2 is fixedly installed on the rear of the left and right sides of the top of the base 1, an arc block 3 is fixedly installed on the bottom end of the front of the fixing frame 2, a first round rod 4 is movably sleeved inside the arc block 3, and a fixing rod 5 is fixedly sleeved on the outer surface of the first round rod 4;

[0034] The driving mechanism is arranged on the back of the fixing rod 5;

[0035] A fixing mechanism is provided at the bottom end of the first round rod 4;

[0036] Among them, the fixing mechanism includes a hinge block 6, the top of the hinge block 6 is fixedly connected to the bottom end of the first round rod 4 and the fixed rod 5 respectively, and the front and rear sides inside the left and right ends of the hinge block 6 are hinged with the first moving rod 7, the other end of the first moving rod 7 is movably sleeved with a round shaft 8, and the outer surface of the round shaft 8 is movably sleeved with a movable rod 9, the top of the first moving rod 7 is movably connected with a moving plate 10, the inside of the moving plate 10 is movably connected to the outer surface of the round shaft 8, and the other end of the movable rod 9 is movably sleeved with a clamping block 11. There are two clamping blocks 11, and a test plate 35 is movably connected between the two clamping blocks 11.

[0037] When the two moving plates 10 move away from each other, the four circular shafts 8 will move under the extrusion inside the two moving plates 10. Since the four first moving rods 7 are hinged to the inside of the hinge block 6, the four circular shafts 8 will drive the four first moving rods 7 to rotate. At the same time, the four movable rods 9 will move driven by the four circular shafts 8. At this time, the other ends of the four movable rods 9 will drive the two clamping blocks 11 to move away from each other, and then the two clamping blocks 11 will release the clamping and fixing effect on the test plate 35 during the away movement.

[0038] The driving mechanism includes:

[0039] The round block 12 has a front surface fixedly connected to the back surface of the fixed rod 5, and a fixed plate 13 is fixedly connected to the back surface of the round block 12. A dual-axis motor 14 is fixedly sleeved inside the round block 12, and a threaded rod 15 is fixedly sleeved on the other end of the output shaft of the dual-axis motor 14. The other end of the threaded rod 15 is movably connected to the inside of the fixed plate 13.

[0040] The first moving block 16 , the interior of the first moving block 16 is threadedly sleeved with the outer surface of the threaded rod 15 , the back of the first moving block 16 is movably connected to the interior of the fixed plate 13 , and the front of the first moving block 16 is fixedly connected to the back of the moving plate 10 .

[0041] Since the back surfaces of the two first motion blocks 16 are movably connected to the interior of the fixed plate 13, they can only move left and right. When the dual-axis motor 14 is running, the two threaded rods 15 will drive the two first motion blocks 16 to move away from each other, and then the two first motion blocks 16 will respectively drive the two motion plates 10 to move away from each other.

[0042] Among them, the top of the first round rod 4 is hinged with a movable block 17, the top of the movable block 17 is hinged with a rotating block 18, the bottom end of the rotating block 18 is hinged with a fixed block 19, the back of the fixed block 19 is fixedly connected to the front of the fixed frame 2, and the top of the rotating block 18 is fixedly installed with a handle 20.

[0043] When the rotating block 18 rotates around the hinge with the fixed block 19, the rotating block 18 will squeeze the movable block 17, and then the bottom end of the movable block 17 will squeeze and push the first round rod 4 as a whole, so that the first round rod 4 as a whole moves downward along the inside of the arc block 3.

[0044] Among them, cylinders 21 are fixedly installed at the front and rear ends of the left and right sides of the top of the base 1, and a square plate 22 is movably sleeved on the outer surface of the cylinder 21.

[0045] Due to the design of the four cylinders 21 , the square plate 22 can only move up and down.

[0046] A spring 23 is movably sleeved on the outer surface of the cylinder 21 , the bottom end of the spring 23 is fixedly connected to the top end of the base 1 , and the top end of the spring 23 is fixedly connected to the bottom end of the square plate 22 .

[0047] Due to the elastic force of the spring 23 , a good buffering effect will be exerted on the power grid control and protection equipment at the top of the square plate 22 .

[0048] A square rod 24 is fixedly mounted on the front of the square plate 22 , and limiting grooves 25 are provided on the left and right sides of the back of the square rod 24 .

[0049] Due to the design of the two limiting grooves 25 , the object inside them will be limited so that it can only move left and right.

[0050] A long plate 26 is fixedly mounted at the center behind the bottom end of the square plate 22 , a vertical plate 27 is fixedly mounted behind the top end of the long plate 26 , and a pneumatic cylinder 28 is fixedly mounted on the front of the vertical plate 27 .

[0051] When the pneumatic cylinder 28 is in operation, the front end of the pneumatic cylinder 28 will move forward.

[0052] A second movement rod 29 is fixedly mounted on one front end of the pneumatic cylinder 28 , and an extrusion shaft 30 is fixedly mounted inside the second movement rod 29 .

[0053] When the pneumatic cylinder 28 is in operation, the front end of the pneumatic cylinder 28 drives the four extrusion shafts 30 to move forward via the second motion rod 29 .

[0054] Among them, second round rods 31 are fixedly installed on the left and right sides of the top of the long board 26, and the outer surface of the second round rod 31 is movably sleeved with a rotating rod 32. The interior of the rotating rod 32 is movably connected to the outer surface of the second movement rod 29, and the interior of the other end of the rotating rod 32 is fixedly sleeved with an extrusion rod 36.

[0055] Due to the design of the two second round rods 31, the two rotating rods 32 can rotate around the movable socket joints with the two second round rods 31. When the four extrusion shafts 30 move forward, their outer surfaces will squeeze and push the outer surfaces of the two rotating rods 32, so that the two rotating rods 32 drive the two extrusion rods 36 to rotate in the opposite direction.

[0056] Among them, the other end of the rotating rod 32 is internally movably connected to the clamping rod 33, the interior of the clamping rod 33 is movably connected to the outer surface of the extrusion rod 36, the bottom end of the clamping rod 33 is movably connected to the top end of the square plate 22, and the front of the clamping rod 33 is fixedly installed with a second moving block 34, and the outer surface of the second moving block 34 is movably connected to the interior of the limit groove 25.

[0057] When the two rotating rods 32 drive the two squeezing rods 36 to rotate in opposite directions, the two squeezing rods 36 will squeeze and push the inside of the two clamping rods 33 respectively to make the two clamping rods 33 move, and then the two clamping rods 33 will drive the two second moving blocks 34 to move. Due to the limiting effect of the two limiting grooves 25, the two clamping rods 33 will drive the two second moving blocks 34 to move toward each other.

[0058] The working principle and use process of this utility model:

[0059] First, the operator starts the dual-axis motor 14, then the two threaded rods 15 will rotate at the same time, and then the two first motion blocks 16 will move under the drive of the two threaded rods 15. Since the backs of the two first motion blocks 16 are in contact with the inside of the fixed plate 13, the two first motion blocks 16 will move in opposite directions under the drive of the two threaded rods 15. Then, the two motion plates 10 will move in opposite directions under the drive of the two first motion blocks 16. At this time, the interiors of the two motion plates 10 will squeeze the four circular shafts 8 respectively in the opposite movement so that the four circular shafts 8 move. At this time, the four circular shafts 8 will respectively drive The four first motion rods 7 move. Since the other ends of the four first motion rods 7 are hinged to the inside of the hinge block 6, the four first motion rods 7 and the four circular shafts 8 will rotate with the hinges inside the hinge block 6 as the axis. At the same time, the four circular shafts 8 will drive the four movable rods 9 to move during the rotation. At this time, the other ends of the four movable rods 9 will squeeze and push the two clamping blocks 11 respectively to make the two clamping blocks 11 move away from each other. At this time, the test plate 35 located between the two clamping blocks 11 will be released during the away-to-away movement of the two clamping blocks 11, thereby realizing the function of convenient replacement of the test plate 35.

[0060] Then the operator places the power grid control protection device on the top of the square plate 22, and then the operator starts the pneumatic cylinder 28. At this time, the front end of the pneumatic cylinder 28 will drive the second motion rod 29 to move forward, and then the four extrusion shafts 30 will move forward under the drive of the second motion rod 29. In this process, the outer surface of the extrusion shaft 30 will squeeze the outer surface of the two rotating rods 32 to make the two rotating rods 32 move. Since the inner parts of the two rotating rods 32 are respectively movably connected with the outer surfaces of the two second round rods 31, the two rotating rods 32 will drive the two extrusion rods 36 to move with the movable sockets with the two second round rods 31. The axis rotates in the opposite direction. At the same time, the two extrusion rods 36 will squeeze and push the inside of the two clamping rods 33 during the rotation, so that the two clamping rods 33 move. Then the two clamping rods 33 will drive the two second motion blocks 34 to move respectively. Due to the design of the two limit grooves 25, the movement of the two second motion blocks 34 will be limited so that they can only move left and right. At this time, the two clamping rods 33 will drive the two second motion blocks 34 to move toward each other. At this time, the power grid control and protection equipment located at the top of the square plate 22 will be clamped during the opposite movement of the two clamping rods 33, thereby realizing the function of automatically clamping different power grid control and protection equipment.

[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power grid control and protection equipment testing tool, characterized in that: Includes: A base (1), wherein a fixing frame (2) is fixedly mounted on the rear of the left and right sides of the top of the base (1), an arc block (3) is fixedly mounted on the bottom end of the front of the fixing frame (2), a first round rod (4) is movably sleeved inside the arc block (3), and a fixing rod (5) is fixedly sleeved on the outer surface of the first round rod (4); A driving mechanism, the driving mechanism being arranged on the back side of the fixing rod (5); A fixing mechanism, the fixing mechanism being arranged at the bottom end of the first round rod (4); The fixing mechanism comprises a hinge block (6), the top end of the hinge block (6) is fixedly connected to the bottom end of the first round rod (4) and the fixed rod (5) respectively, the front and rear sides of the left and right ends of the hinge block (6) are hinged with the first moving rod (7), the other end of the first moving rod (7) is movably sleeved with a round shaft (8), the outer surface of the round shaft (8) is movably sleeved with a movable rod (9), the top end of the first moving rod (7) is movably connected to a moving plate (10), the inside of the moving plate (10) is movably connected to the outer surface of the round shaft (8), the other end of the movable rod (9) is movably sleeved with a clamping block (11), the number of the clamping blocks (11) is two, and a test plate (35) is movably connected between the two clamping blocks (11).

2. A power grid control and protection equipment testing tool according to claim 1, characterized in that: The driving mechanism includes: A round block (12), the front side of the round block (12) is fixedly connected to the back side of the fixed rod (5), the back side of the round block (12) is fixedly connected to a fixed plate (13), the interior of the round block (12) is fixedly sleeved with a dual-axis motor (14), the other end of the output shaft of the dual-axis motor (14) is fixedly sleeved with a threaded rod (15), and the other end of the threaded rod (15) is movably connected to the interior of the fixed plate (13); A first motion block (16), wherein the interior of the first motion block (16) is threadedly sleeved with the outer surface of the threaded rod (15), the back surface of the first motion block (16) is movably connected to the interior of the fixed plate (13), and the front surface of the first motion block (16) is fixedly connected to the back surface of the motion plate (10).

3. The power grid control and protection equipment testing tool according to claim 1, characterized in that: A movable block (17) is hingedly connected to the interior of the top end of the first round rod (4), a rotating block (18) is hingedly connected to the top end of the movable block (17), a fixed block (19) is hingedly connected to the bottom end of the rotating block (18), the back side of the fixed block (19) is fixedly connected to the front side of the fixed frame (2), and a handle (20) is fixedly installed inside the top end of the rotating block (18).

4. The power grid control and protection equipment testing tool according to claim 1, characterized in that: Cylinders (21) are fixedly mounted on both the front and rear ends of the left and right sides of the top of the base (1), and a square plate (22) is movably sleeved on the outer surface of the cylinder (21).

5. A power grid control and protection equipment testing tool according to claim 4, characterized in that: A spring (23) is movably sleeved on the outer surface of the cylinder (21), the bottom end of the spring (23) is fixedly connected to the top end of the base (1), and the top end of the spring (23) is fixedly connected to the bottom end of the square plate (22).

6. A power grid control and protection equipment testing tool according to claim 4, characterized in that: A square rod (24) is fixedly mounted on the front of the square plate (22), and limiting grooves (25) are provided on both left and right sides of the back of the square rod (24).

7. The power grid control and protection equipment testing tool according to claim 4, characterized in that: A long plate (26) is fixedly mounted at the center behind the bottom end of the square plate (22), a vertical plate (27) is fixedly mounted behind the top end of the long plate (26), and a pneumatic cylinder (28) is fixedly mounted on the front of the vertical plate (27).

8. The power grid control and protection equipment testing tool according to claim 7, characterized in that: A second motion rod (29) is fixedly mounted on one front end of the pneumatic cylinder (28), and an extrusion shaft (30) is fixedly mounted inside the second motion rod (29).

9. The power grid control and protection equipment testing tool according to claim 7, characterized in that: A second round rod (31) is fixedly mounted on both the left and right sides of the top of the long board (26); a rotating rod (32) is movably sleeved on the outer surface of the second round rod (31); the interior of the rotating rod (32) is movably connected to the outer surface of the second motion rod (29); and an extrusion rod (36) is fixedly sleeved on the interior of the other end of the rotating rod (32).

10. A power grid control and protection equipment testing tool according to claim 9, characterized in that: The other end of the rotating rod (32) is movably connected to a clamping rod (33) inside, the inside of the clamping rod (33) is movably connected to the outer surface of the extrusion rod (36), the bottom end of the clamping rod (33) is movably connected to the top end of the square plate (22), and a second moving block (34) is fixedly installed on the front side of the clamping rod (33), and the outer surface of the second moving block (34) is movably connected to the inside of the limiting groove (25).

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