A test support for a drop-out fuse

Abstract

The utility model discloses a drop type fuse test support, including base and guard frame, the top of base is installed with guard frame, the outer wall of guard frame is slidably installed with front transparent guard board, the outer wall of guard frame of one side of front transparent guard board installs three groups of side transparent guard board of equal interval, the top of guard frame is installed with voltmeter, the top of base of one side of guard frame is installed with power cylinder, the output of power cylinder is installed with drive block, the outer wall of drive block is installed with drive board, the top of base below drive board is installed with slide rail. The utility model not only has realized the convenient installation and fixed of test support to drop type fuse, has facilitated the convenient adjustment of drop type fuse test angle, and has facilitated the convenient protection of test support to test personnel, has avoided the damage of drop type fuse in the test process to cause the harm of test personnel, has improved the safety of test support.

Description

Technical Field

[0001] This utility model relates to the field of test support technology, specifically a drop-out fuse test support. Background Technology

[0002] Drop-out fuses are the most commonly used short-circuit protection switches for 10kV distribution line branches and distribution transformers. Installed on 10kV distribution line branches, drop-out fuses can reduce the scope of power outages. Because they have a clearly visible disconnect point, they function as disconnecting switches, creating a safe working environment for the lines and equipment under maintenance. They are economical, easy to operate, and highly adaptable to outdoor environments, and are widely used on the primary side of 10kV distribution lines and distribution transformers for protection and equipment switching operations, thus gaining widespread application.

[0003] As disclosed in the patent announcement CN215067135U, a drop-out fuse test bracket includes a base, four insulating supports, two brackets, and three support plates. The bottoms of the four insulating supports are respectively mounted on the base. Two adjacent insulating supports form a group and are connected to the bottom of one bracket. The three support plates are fixedly connected between two brackets and spaced apart. The advantage of this invention is that it uses four insulating supports to support the test platform formed by the two brackets and three support plates.

[0004] Although it enables the drop-out fuse to be tested to be supported by a pallet, ensuring that the casing of the drop-out fuse is not suspended in the air, simulating on-site testing, it can also perform three-phase drop-out fuse testing. During the test, the drop-out fuse can be placed stably, which facilitates the completion of related test items such as manual opening and closing operations, contact resistance testing, withstand voltage testing, and lightning impulse testing, greatly improving testing efficiency.

[0005] However, this does not solve the problem that existing test brackets of this type are generally not conducive to the convenient installation and fixing of drop-out fuses, the convenient adjustment of the test angle of drop-out fuses, or the convenient protection of test personnel by the test bracket. During the test, damage to the drop-out fuse can easily cause injury to the test personnel, thus affecting the safety of the test bracket. Utility Model Content

[0006] The purpose of this utility model is to provide a test bracket for drop-out fuses, in order to solve the problems mentioned in the background art, such as the inconvenience of convenient installation and fixing of drop-out fuses, the inconvenience of convenient adjustment of the test angle of drop-out fuses, the inconvenience of convenient protection for test personnel by the test bracket, and the easy injury to test personnel caused by damage to drop-out fuses during the test, which affect the safety of the test bracket.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drop-out fuse test bracket, comprising a base and a protective frame. The protective frame is mounted on the top of the base. A front transparent protective plate is slidably mounted on the outer wall of the protective frame. Three sets of equally spaced side transparent protective plates are mounted on the outer wall of the protective frame on one side of the front transparent protective plate. A voltmeter is mounted on the top of the protective frame. A power cylinder is mounted on the top of the base on one side of the protective frame. A drive block is mounted on the output end of the power cylinder. A drive plate is mounted on the outer wall of the drive block. Below the drive plate... A slide rail is installed at the top of the base, and a slider is slidably installed at the top of the slide rail and connected to the drive plate. A support frame is installed at the top of the drive plate, and a first conductive block is installed at the top of the support frame. A flip frame is movably installed on the outer wall of the support frame. An electric push rod is movably installed on the outer wall of the support frame on one side of the flip frame. A drive shaft is installed at the output end of the electric push rod, and the electric push rod is connected to the flip frame through the drive shaft. A first test line is installed on the outer wall of the first conductive block, and a second test line is installed on the first conductive block on one side of the first test line.

[0008] Preferably, a flipping shaft is installed on the outer wall of the flipping frame near the support frame, and the support frame is movably connected to the flipping frame via the flipping shaft.

[0009] Preferably, an installation sleeve is installed on the outer wall of the flipping frame on one side of the flipping shaft, and a fixing bolt is installed at the bottom end of the installation sleeve, and the fixing bolt extends through the installation sleeve to the surface of the flipping frame.

[0010] Preferably, a lifting cylinder is installed at the top of the protective frame on one side of the voltmeter, and a lifting push rod is installed at the output end of the lifting cylinder. The lifting push rod extends into the interior of the protective frame and is slidably connected to the protective frame.

[0011] Preferably, a second conductive block is installed on the outer wall of the lifting push rod on one side of the protective frame, and limit sleeves are symmetrically installed on the top of the protective frame on one side of the lifting cylinder.

[0012] Preferably, the limiting sleeve extends to the outside of the protective frame, and the limiting sleeve is slidably installed with a limiting rod inside, and the limiting rod extends to the outside of the limiting sleeve.

[0013] Preferably, servo motors are symmetrically installed on the top of the protective frame on one side of the front transparent protective plate, and threaded rods are installed on the output ends of the servo motors.

[0014] Preferably, the surface of the threaded rod is fitted with a threaded sleeve, and the threaded sleeve is connected to the front transparent protective plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the test bracket not only realizes the convenient installation and fixing of the drop-out fuse, and facilitates the convenient adjustment of the test angle of the drop-out fuse, but also facilitates the convenient protection of the test personnel by the test bracket, avoids the damage of the drop-out fuse to the test personnel during the test, and improves the safety of the test bracket. Place the drop-out fuse on the surface of the mounting sleeve. Manually rotate the fixing bolts to facilitate the mounting of the drop-out fuse onto the surface of the flip-over frame. The power cylinder drives the drive block to move, which in turn drives the drive plate. The drive plate then moves the support frame, the first conductive block, the flip-over frame, the first test lead, the second test lead, and the drop-out fuse into the protective frame. Open the electric push rod. With the support of the movable support frame, the electric push rod, via the drive shaft, moves the flip-over frame to a suitable angle around the flip-over shaft to facilitate adjustment of the tilt angle for the drop-out fuse test. Manually connect the second test lead to the first test lead. On the surface of the drop-out fuse, a lifting cylinder drives the second conductive block to move via a lifting push rod, facilitating the movement of the second conductive block to the surface of the first conductive block. Two sets of servo motors are activated to facilitate the movement of the front transparent protective plate to a suitable position. This allows the front transparent protective plate and multiple sets of side transparent protective plates to protect the test personnel, preventing injury from damage to the drop-out fuse during the test. This enables convenient installation and fixation of the drop-out fuse on the test bracket, facilitates easy adjustment of the test angle of the drop-out fuse, and facilitates convenient testing of the drop-out fuse, thus improving the convenience of drop-out fuse testing. The servo motor drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, the threaded sleeve drives the front transparent protective plate to move, and the protective frame provides sliding support for the front transparent protective plate. This facilitates the protection of test personnel by multiple sets of side transparent protective plates and the front transparent protective plate, realizing convenient protection for test personnel by the test bracket, avoiding injury to test personnel caused by damage to drop fuses during the test, and improving the safety of the test bracket. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the fixing bolt of this utility model; Figure 4 This is a three-dimensional structural diagram of the lifting cylinder of this utility model; Figure 5 This is a three-dimensional structural diagram of the support frame of this utility model; Figure 6This is a three-dimensional structural diagram of the flipping frame of this utility model; Figure 7 This is a three-dimensional structural diagram of the protective frame of this utility model; Figure 8 This is a three-dimensional structural diagram of the power cylinder of this utility model; Figure 9 This is a three-dimensional structural diagram of the front transparent protective plate of this utility model.

[0017] In the diagram: 1. Base; 2. Protective frame; 3. Front transparent protective plate; 4. Side transparent protective plate; 5. Voltmeter; 6. Power cylinder; 7. Drive block; 8. Drive plate; 9. Slide rail; 10. Slider; 11. Support frame; 12. First conductive block; 13. Electric push rod; 14. Drive shaft; 15. Tilting frame; 16. Tilting shaft; 17. First test line; 18. Second test line; 19. Fixing bolt; 20. Mounting sleeve; 21. Lifting cylinder; 22. Limit rod; 23. Limit sleeve; 24. Lifting push rod; 25. Second conductive block; 26. Servo motor; 27. Threaded rod; 28. Threaded sleeve. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Please see Figure 1-9This utility model provides an embodiment of a drop-out fuse test bracket, comprising a base 1 and a protective frame 2. The protective frame 2 is mounted on the top of the base 1. A front transparent protective plate 3 is slidably mounted on the outer wall of the protective frame 2. Three sets of equally spaced side transparent protective plates 4 are mounted on the outer wall of the protective frame 2 on one side of the front transparent protective plate 3. A voltmeter 5 is mounted on the top of the protective frame 2. A power cylinder 6 is mounted on the top of the base 1 on one side of the protective frame 2. A drive block 7 is mounted on the output end of the power cylinder 6. A drive plate 8 is mounted on the outer wall of the drive block 7. A slide rail 9 is mounted on the top of the base 1 below the drive plate 8. A slider 10 is slidably mounted on the top of the slide rail 9 and is connected to the drive plate 8. A support frame 11 is mounted on the top of the drive plate 8, and a first conductive block 12 is mounted on the top of the support frame 11. A flipping frame 15 is movably mounted on the outer wall of the support frame 11. An electric push rod 13 is movably mounted on the outer wall of the support frame 11 on one side of the flipping frame 15. A drive shaft 14 is mounted on the output end of the electric push rod 13, and the electric push rod 13 is connected to the flipping frame 15 through the drive shaft 14. A first test lead 17 is installed on the outer wall of the conductive block 12. A second test lead 18 is installed on the first conductive block 12 on one side of the first test lead 17. A flipping shaft 16 is installed on the outer wall of the flipping frame 15 near the support frame 11, and the support frame 11 is movably connected to the flipping frame 15 via the flipping shaft 16. A mounting sleeve 20 is installed on the outer wall of the flipping frame 15 on one side of the flipping shaft 16. A fixing bolt 19 is installed at the bottom end of the mounting sleeve 20, and the fixing bolt 19 extends through the mounting sleeve 20 to the surface of the flipping frame 15. The voltmeter 5 is protected on one side. A lifting cylinder 21 is installed at the top of the frame 2. A lifting push rod 24 is installed at the output end of the lifting cylinder 21. The lifting push rod 24 extends into the interior of the protective frame 2 and is slidably connected to the protective frame 2. A second conductive block 25 is installed on the outer wall of the lifting push rod 24 on one side of the protective frame 2. Limit sleeves 23 are symmetrically installed at the top of the protective frame 2 on one side of the lifting cylinder 21. The limit sleeves 23 extend into the exterior of the protective frame 2. Limit rods 22 are slidably installed inside the limit sleeves 23 and extend into the exterior of the limit sleeves 23. Place the drop-out fuse on the surface of the mounting sleeve 20. Manually rotate the fixing bolt 19 to facilitate the installation of the drop-out fuse on the surface of the flip-over frame 15 through the mounting sleeve 20. Activate the power cylinder 6. With the support of the base 1, the power cylinder 6 drives the drive block 7 to move. The drive block 7 drives the drive plate 8 to move. The slider 10 slides on the surface of the slide rail 9 to provide sliding support for the drive plate 8. The drive plate 8 drives the support frame 11, the first conductive block 12, the flip-over frame 15, the first test line 17, the second test line 18, and the drop-out fuse to move into the interior of the protective frame 2. Open the electric push rod 13. Under the movable support of the support frame 11, the electric push rod 13 drives the tilting frame 15 to move to a suitable angle around the tilting shaft 16 via the drive shaft 14, so as to facilitate the adjustment of the tilt angle of the drop-out fuse test. Manually connect the second test line 18 and the first test line 17 to the surface of the drop-out fuse. Open the lifting cylinder 21. Under the support of the protective frame 2, the lifting cylinder 21 drives the second conductive block 25 to move via the lifting push rod 24. The limiting rod 22 slides inside the limiting sleeve 23 to provide sliding support for the second conductive block 25, so as to facilitate the second conductive block 25 to move. Block 25 moves to the surface of the first conductive block 12, activating two sets of servo motors 26. This allows the servo motors 26 to move the front transparent protective plate 3 to a suitable position, facilitating the protection of the test personnel by the front transparent protective plate 3 and multiple sets of side transparent protective plates 4, preventing injury to the test personnel due to damage to the drop-out fuse during the test. The second conductive block 25 is then connected to an external power source, allowing it to transmit external power through the first conductive block 12 to the interior of the second test line 18 and the first test line 17, facilitating the transmission of power through the first test line 17 and the second test line 18. To test the drop-out fuse, the input terminal of voltmeter 5 is connected to the first test lead 17 and the second test lead 18 to facilitate observation of the voltage magnitude of the first test lead 17 and the second test lead 18. The tester observes the voltage change on voltmeter 5 to test the drop-out fuse and observes whether the drop-out fuse successfully breaks without the fuse tube bursting. This achieves convenient installation and fixation of the drop-out fuse on the test bracket, facilitates convenient adjustment of the test angle of the drop-out fuse, facilitates convenient testing of the drop-out fuse, and improves the convenience of testing the drop-out fuse. Servo motors 26 are symmetrically installed on the top of the protective frame 2 on one side of the front transparent protective plate 3. The output end of each servo motor 26 is equipped with a threaded rod 27. The surface of each threaded rod 27 is fitted with a threaded sleeve 28, and the threaded sleeve 28 is connected to the front transparent protective plate 3. Two sets of servo motors 26 are turned on. With the support of the protective frame 2, the servo motors 26 drive the threaded rod 27 to rotate. With the threaded connection between the threaded rod 27 and the threaded sleeve 28, the threaded rod 27 drives the threaded sleeve 28 to move. The threaded sleeve 28 drives the front transparent protective plate 3 to move. The protective frame 2 provides sliding support for the front transparent protective plate 3, so as to facilitate the protection of the test personnel by multiple sets of side transparent protective plates 4 and the front transparent protective plate 3. This realizes convenient protection of the test personnel by the test bracket, avoids the damage of the drop fuse during the test and prevents injury to the test personnel, and improves the safety of the test bracket.

[0020] In this embodiment, the drop-out fuse is placed on the surface of the mounting sleeve 20. The fixing bolt 19 is manually rotated to facilitate its installation on the surface of the flip-over frame 15 via the mounting sleeve 20. The power cylinder 6 drives the drive block 7 to move, which in turn drives the drive plate 8. The drive plate 8 moves the support frame 11, the first conductive block 12, the flip-over frame 15, the first test line 17, the second test line 18, and the drop-out fuse into the protective frame 2. The electric push rod 13, via the drive shaft 14, moves the flip-over frame 15 to a suitable angle around the flip-over shaft 16 to facilitate adjustment of the drop-out fuse test tilt angle. The second test line 18 is manually connected to the surface of the drop-out fuse along with the first test line 17. The lifting cylinder 21, via the lifting push rod 24, moves the second conductive block 25. The limiting rod 22 slides inside the limiting sleeve 23 to provide sliding support for the second conductive block 25, facilitating its movement to the surface of the first conductive block 12. The two sets of servo motors 26 are then activated. The servo motor 26 drives the front transparent protective plate 3 to a suitable position, allowing the front transparent protective plate 3 and multiple sets of side transparent protective plates 4 to protect the test personnel and prevent injury to the test personnel caused by damage to the drop-out fuse during the test. The second conductive block 25 is connected to an external power source, allowing the second conductive block 25 to transmit the external power through the first conductive block 12 to the inside of the second test line 18 and the first test line 17, facilitating the test of the drop-out fuse through the first test line 17 and the second test line 18. The test personnel test the drop-out fuse by observing the voltage change on the voltmeter 5, observing whether the drop-out fuse successfully breaks and whether the fuse tube bursts. The servo motor 26 drives the threaded rod 27 to rotate, the threaded rod 27 drives the threaded sleeve 28 to move, and the threaded sleeve 28 drives the front transparent protective plate 3 to move. The protective frame 2 provides sliding support for the front transparent protective plate 3, facilitating the protection of the test personnel by multiple sets of side transparent protective plates 4 and the front transparent protective plate 3, thus completing the use of the test support.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A test bracket for drop-out fuses, characterized in that: The device includes a base (1) and a protective frame (2). The protective frame (2) is installed on the top of the base (1). A front transparent protective plate (3) is slidably installed on the outer wall of the protective frame (2). Three sets of side transparent protective plates (4) with equal spacing are installed on the outer wall of the protective frame (2) on one side of the front transparent protective plate (3). A voltmeter (5) is installed on the top of the protective frame (2). A power cylinder (6) is installed on the top of the base (1) on one side of the protective frame (2). A drive block (7) is installed at the output end of the power cylinder (6). A drive plate (8) is installed on the outer wall of the drive block (7). A slide rail (9) is installed on the top of the base (1) below the drive plate (8). A slider (10) is slidably installed on the top of the slide rail (9). The slider (10) is connected to the drive plate (8). A support frame (11) is installed at the top of the drive plate (8). A first conductive block (12) is installed at the top of the support frame (11). A flip frame (15) is movably installed on the outer wall of the support frame (11). An electric push rod (13) is movably installed on the outer wall of the support frame (11) on one side of the flip frame (15). A drive shaft (14) is installed at the output end of the electric push rod (13). The electric push rod (13) is connected to the flip frame (15) through the drive shaft (14). A first test line (17) is installed on the outer wall of the first conductive block (12). A second test line (18) is installed on the first conductive block (12) on one side of the first test line (17).

2. The drop-out fuse test bracket according to claim 1, characterized in that: The flipping frame (15) has a flipping shaft (16) installed on the outer wall of the side near the support frame (11), and the support frame (11) is movably connected to the flipping frame (15) via the flipping shaft (16).

3. The drop-out fuse test bracket according to claim 2, characterized in that: An installation sleeve (20) is installed on the outer wall of the flipping frame (15) on one side of the flipping shaft (16). A fixing bolt (19) is installed at the bottom end of the installation sleeve (20), and the fixing bolt (19) extends through the installation sleeve (20) to the surface of the flipping frame (15).

4. The drop-out fuse test bracket according to claim 1, characterized in that: A lifting cylinder (21) is installed at the top of the protective frame (2) on one side of the voltmeter (5). A lifting push rod (24) is installed at the output end of the lifting cylinder (21), and the lifting push rod (24) extends into the interior of the protective frame (2), and the lifting push rod (24) is slidably connected to the protective frame (2).

5. A drop-out fuse test bracket according to claim 4, characterized in that: A second conductive block (25) is installed on the outer wall of the lifting push rod (24) on one side of the protective frame (2), and a limit sleeve (23) is symmetrically installed on the top of the protective frame (2) on one side of the lifting cylinder (21).

6. The drop-out fuse test bracket according to claim 5, characterized in that: The limiting sleeve (23) extends to the outside of the protective frame (2), and the limiting rod (22) is slidably installed inside the limiting sleeve (23), and the limiting rod (22) extends to the outside of the limiting sleeve (23).

7. The drop-out fuse test bracket according to claim 1, characterized in that: Servo motors (26) are symmetrically installed on the top of the protective frame (2) on one side of the front transparent protective plate (3), and threaded rods (27) are installed on the output ends of the servo motors (26).

8. The drop-out fuse test bracket according to claim 7, characterized in that: The surface of the threaded rod (27) is fitted with a threaded sleeve (28), and the threaded sleeve (28) is connected to the front transparent protective plate (3).

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