Drop-type switch test device

Abstract

The invention discloses a drop type switch test device in the technical field of circuit detection, which comprises a detection device, a plurality of groups of support columns are arranged on the detection device, an upper mounting ring is fixedly mounted at the upper ends of the support columns, and a fixed detection part is arranged on the upper mounting ring, is fixedly mounted on the upper mounting ring and is used for detecting the drop type switch. The fixed detection piece can clamp and fix the drop-type switch, the upper end and the lower end of the fixed detection piece are both provided with movable connection units, and the movable connection units can quickly connect the drop-type switch with the detection device; the movable detection piece is composed of two groups of detection units, the detection units are connected to the upper mounting ring in a sliding mode, the two groups of detection units are connected with the two ends of a power source in the detection device respectively, and the ends, away from the detection device, of the detection units can be rapidly connected with the drop type switch. And the detection is faster and more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of circuit detection, in particular to a drop-type switch testing device. Background Art

[0002] When testing a drop-type switch, it is necessary to measure the internal resistance of each contact point and each part. The resistance detection method is generally indirect. During the detection, it is necessary to detect the current or voltage, and then obtain the resistance value through calculation. Finally, the detected resistance value is compared with the set resistance value to determine whether the resistance value of the drop-type switch meets the standard.

[0003] In the actual detection process, most of the detection values ​​are obtained by relying on voltmeters or ammeters, and the judgment is made based on the characteristics that when the drop-out switch is blown, the resistance is infinite and the current tends to zero. However, in the batch detection process, the connection with voltmeters and ammeters is frequent, which affects the detection efficiency. In addition, the detection meter is prone to failure and inaccurate data due to frequent use. Summary of the invention

[0004] The technical problem of the present invention is to provide a drop-type switch test device, so as to intuitively judge the resistance size through the height of the magnetic block, so as to make the detection faster and more efficient.

[0005] To achieve the above object, the present invention provides the following technical solution: a drop switch test device, comprising a detection device and a drop switch, wherein a transformer and a power supply are arranged in the detection device, and a plurality of support columns are arranged on the detection device, and an upper mounting ring is fixedly mounted on the upper end of the support column, and the upper mounting ring is provided with: A fixed detection member, the fixed detection member is fixedly mounted on the upper mounting ring, the fixed detection member can clamp and fix the drop-type switch, and both upper and lower ends of the fixed detection member are provided with movable connection units, and the movable connection units can quickly connect the drop-type switch to the detection device; The movable detection part is composed of two groups of detection units, and the detection units are slidably connected to the upper mounting ring. The two groups of detection units are respectively connected to the two ends of the power supply in the detection device. The end of the detection unit away from the detection device can be quickly connected to the drop-type switch. The detection units are all provided with magnetic blocks, and the magnetic blocks can be moved to different heights according to the size of the resistance.

[0006] As a further solution of the present invention, the fixed detection component includes a driving cylinder, and the upper and lower ends of the driving cylinder are fixedly installed with connecting seats, the lower end of the connecting seat is fixedly installed on the upper mounting ring, and telescopic rods are provided at both ends of the driving cylinder, the telescopic rod passes through the connecting seat and a movable block is fixedly installed at one end away from the driving cylinder, and the movable block is slidably connected to the movable connection unit.

[0007] As a further solution of the present invention, the movable connection unit includes a movable part, and an external threaded rod is rotatably installed on one side of the movable part close to the movable block, and a clamping end is fixedly installed on the surface of the side of the movable part close to the connecting seat, and a thread groove is provided on the movable block, and the thread groove is threadedly connected to the external threaded rod, and a rotating motor is fixedly installed on one end of the movable part, and the output end of the rotating motor is fixedly connected to the external threaded rod.

[0008] As a further solution of the present invention, the detection unit includes a movable column, the lower end of the movable column is slidably connected to the upper mounting ring, the movable column is slidably connected with a movable seat, the movable seat is fixedly mounted with a connecting frame, a magnetic induction coil is arranged between the connecting frames, the upper end of the magnetic induction coil is connected with an upper detection wire, the end of the upper detection wire away from the connecting frame is fixedly mounted with a connecting clip, the lower end of the magnetic induction coil is fixedly connected with a lower detection wire, the lower end of the lower detection wire is connected to the power supply in the detection device, the upper end of the connecting frame is fixedly mounted with an upper connecting plate, and a magnetic block is slidably connected to the upper connecting plate.

[0009] As a further solution of the present invention, the drop-out switch includes a fuse tube and an insulating member, the lower end of the fuse tube is rotatably connected to the lower end of the insulating member, the upper end of the fuse tube is clamped with the insulating member, and the upper and lower ends of the connection between the fuse tube and the insulating member are respectively fixedly installed with an upper connecting end and a lower connecting end, and the upper connecting end and the lower connecting end can be clamped with the clamping end, and a fusible wire passes through the fuse tube, and the upper and lower ends of the fusible wire are respectively connected to the upper connecting end and the lower connecting end.

[0010] As a further solution of the present invention, a mounting groove is provided on one side of the connecting seat close to the upper mounting ring, an internally threaded rod is rotatably installed in the mounting groove, a clamping plate is connected to the internal thread of the internally threaded rod, the clamping plate is slidably connected to the mounting groove, and the clamping plates are close to each other to clamp and fix the insulating part, a driving motor is fixedly installed in the mounting groove, and the output end of the driving motor is fixedly connected to the internally threaded rod.

[0011] As a further solution of the present invention, the power output end in the detection device is fixedly connected to the lower clamping end through a lower connecting line, and the power input end is fixedly connected to the upper clamping end through a lower connecting line.

[0012] As a further solution of the present invention, the lower detection wires are provided with two groups and are respectively connected to the two poles of the power supply, and a scale is provided on the magnetic block. In a natural state, the magnetic block is at the lowest point under the action of gravity.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention connects the two ends of the resistor to be measured through two groups of detection units. At this time, the power supply outputs a fixed voltage value. When the measured resistance value is larger, the current is smaller, the magnetic field received by the magnetic block is smaller, and the moving distance of the magnetic block is smaller. The user can intuitively judge the size of the detection resistance value by the moving distance of the magnetic block. The movement of the magnetic block is only affected by the current size, and the fault can be directly observed.

[0014] The fixed detection part in the present invention can quickly connect the drop-type switch to the power supply through the clamping end, and the movable detection part can be quickly clamped on both sides of the resistor by the connecting clamp, so as to quickly connect the position of the resistor to be tested to the power supply, simplifying the steps of separately screwing the wires at both ends in the past, increasing the detection speed of the drop-type switch, and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The structure of the present invention under the detection state is schematically shown Figure 1 ; Figure 3 The structure of the present invention under the detection state is schematically shown Figure 2 ; Figure 4 For the present invention Figure 3 A partial schematic diagram of the structure at A in the middle; Figure 5 For the present invention Figure 3 A partial schematic diagram of the structure at B in the middle; Figure 6 It is a schematic diagram of the front side viewing angle structure in the detection state of the present invention; Figure 7 For the present invention Figure 6 A partial schematic diagram of the structure at C in the middle; Figure 8 It is a structural cross-sectional view of the present invention.

[0017] In the accompanying drawings: 1. detection device; 2. connecting seat; 3. driving cylinder; 4. movable part; 5. external threaded rod; 6. movable block; 7. drop-type switch; 701. fuse; 702. insulating member; 703. lower connecting end; 704. upper connecting end; 705. fusible wire; 8. mounting groove; 9. clamping plate; 10. clamping end; 11. upper mounting ring; 12. supporting column; 13. movable column; 14. moving seat; 15. connecting frame; 16. connecting clamp; 17. magnetic block; 18. upper connecting plate; 19. magnetic induction coil; 20. internal threaded rod; 21. lower connecting wire; 22. lower detection wire; 23. upper detection wire. DETAILED DESCRIPTION

[0018] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 The present invention provides a technical solution: a drop switch test device, comprising a detection device 1 for testing the fusing performance of the drop switch 7, the detection device 1 comprising a transformer, a power supply and positive and negative terminals of the power supply, and an existing means, wherein a plurality of support columns 12 are arranged on the detection device 1, and an upper mounting ring 11 is fixedly mounted on the upper end of the support column 12, and the upper mounting ring 11 is provided with: A fixed detection member, which is fixedly mounted on the upper mounting ring 11, and can clamp and fix the drop-type switch 7. Both upper and lower ends of the fixed detection member are provided with movable connection units, and the movable connection units can quickly electrically connect the drop-type switch 7 with the detection device 1; The movable detection part is composed of two groups of detection units, which are slidably connected to the upper mounting ring 11. The two groups of detection units are respectively connected to the positive and negative ends of the power supply in the detection device 1. The end of the detection unit away from the detection device 1 can be quickly connected to the main body of the drop-type switch 7. The detection unit is provided with a magnetic block 17, which can be moved to different heights according to the size of the resistance.

[0020] During operation, the present invention fixes and clamps the drop-type switch 7 by means of a fixed detection member. When the fusing capacity of the drop-type switch 7 needs to be detected, the user drives the movable connection unit to connect to the two ends of the drop-type switch 7, and gradually increases the output voltage of the power supply until the drop-type switch 7 is blown, thereby judging whether the critical fusing value of the drop-type switch 7 meets the standard. In addition, during the inspection process, the movable connection unit can quickly establish an electrical connection with the drop-type switch 7, thereby improving the detection efficiency. When the resistance value of each part of the drop-type switch 7 needs to be measured, two groups of detection units can be used to respectively connect the two ends of the part to be measured. At this time, the power supply outputs a fixed voltage value. When the measured resistance value is larger, the current is smaller, the magnetic field received by the magnetic block 17 is also smaller, and the moving distance of the magnetic block 17 is smaller. The user can intuitively judge the size of the detection resistance value by the moving distance of the magnetic block 17. The movement of the magnetic block 17 is only affected by the current size, and the fault can be directly observed, thereby achieving high detection efficiency.

[0021] As a further solution of the present invention, the fixed detection part includes a driving cylinder 3, and the upper and lower ends of the driving cylinder 3 are fixedly installed with connecting seats 2, the lower end connecting seat 2 is fixedly installed on the upper mounting ring 11, and telescopic rods are provided at both ends of the driving cylinder 3. The telescopic rod passes through the connecting seat 2 and a movable block 6 is fixedly installed at one end away from the driving cylinder 3, and the movable block 6 is slidably connected to the movable connection unit.

[0022] During operation, the driving cylinder 3 in the present invention can be extended or shortened to adjust the distance between the movable connection unit and the drop-type switch 7, and ensure that the drop-type switch 7 is in a vertical placement state during detection as in actual use, ensuring that the detection data can be more in line with the actual application data.

[0023] As a further solution of the present invention, the movable connection unit includes a movable part 4, and an externally threaded rod 5 is rotatably installed on one side of the movable part 4 close to the movable block 6. A clamping end 10 is fixedly installed on the surface of the movable part 4 close to the connecting seat 2. The two clamping ends 10 are respectively used to install the positive and negative terminal terminals of the detection device 1. A thread groove is provided on the movable block 6, and the thread groove is threadedly connected to the externally threaded rod 5. A rotating motor is fixedly installed on one end of the movable part 4, and the output end of the rotating motor is fixedly connected to the externally threaded rod 5.

[0024] During operation, the rotating motor of the present invention drives the external threaded rod 5 to rotate. Through the interaction between the rotation of the external threaded rod 5 and the movable block 6, the relative distance between the movable block 6 and the movable part 4 can be adjusted, thereby adjusting the relative position between the clamping end 10 and the drop-type switch 7, ensuring that the clamping end 10 and the connecting terminal of the drop-type switch can be on the same axis. Through the mutual approach of the movable part 4, the clamping end 10 is close to the drop-type switch 7, thereby quickly connecting the drop-type switch 7 to the detection device 1 electrically through the clamping end 10.

[0025] As a further solution of the present invention, the detection unit includes a movable column 13, the lower end of the movable column 13 is slidably connected to the upper mounting ring 11, the movable column 13 is slidably connected with a movable seat 14, the movable seat 14 is fixedly mounted with a connecting frame 15, a magnetic induction coil 19 is arranged between the connecting frames 15, the upper end of the magnetic induction coil 19 is connected with an upper detection wire 23, the end of the upper detection wire 23 away from the connecting frame 15 is fixedly mounted with a connecting clip 16, the lower end of the magnetic induction coil 19 is fixedly connected with a lower detection wire 22, the lower end of the lower detection wire 22 is connected to the power supply in the detection device 1, the upper end of the connecting frame 15 is fixedly mounted with an upper connecting plate 18, and the upper connecting plate 18 is slidably connected with a magnetic block 17.

[0026] During operation, when the present invention detects the gap through the detection unit, it can be clamped at both ends of the resistor to be tested through the connecting clip 16. The current is output through the lower detection wire 22 on one side of the power output end and enters the magnetic induction coil 19, and then enters the resistor through the upper detection wire 23 on the output end and the connecting clip 16, and then enters the magnetic induction coil 19 of another detection unit through the upper detection wire 23 on one side of the power input end, and finally returns to the power supply through the lower detection wire 22 to form a loop. The current size of the loop reflects the size of the resistance value, and the current size determines the size of the magnetic field generated by the magnetic induction coil 19. The larger the current, the larger the magnetic field, the greater the repulsive force on the magnetic induction coil 19, the greater the upward movement height of the magnetic block 17, and the smaller the resistance value. It will not be affected by the numerical value of the internal mechanical structure failure such as the ammeter, so as to avoid the user from recording data incorrectly. Two groups of magnetic induction coils 19 are arranged in the same loop. The accuracy of the data can be verified by comparing the height data of the two groups of magnetic blocks 17, thereby further increasing the accuracy of the detected numerical value. In the present invention, the fixed detection part can quickly connect the drop-type switch 7 to the power supply through the clamping end, and the movable detection part can be clamped on both sides of the resistor by the connecting clamp 16, so as to quickly connect the position of the resistor to be tested to the power supply, simplifying the steps of separately screwing the wires at both ends in the past, increasing the detection speed of the drop-type switch 7, and improving the detection efficiency.

[0027] As a further solution of the present invention, the drop-type switch 7 includes a fuse tube 701 and an insulating member 702, the lower end of the fuse tube 701 is rotatably connected to the lower end of the insulating member 702, the upper end of the fuse tube 701 is clamped with the insulating member 702, and the upper and lower ends of the connection between the fuse tube 701 and the insulating member 702 are respectively fixedly installed with an upper connecting end 704 and a lower connecting end 703, the upper connecting end 704 and the lower connecting end 703 can be clamped with the clamping end 10, and a fuse wire 705 passes through the fuse tube 701, and the upper and lower ends of the fuse wire 705 are respectively connected to the upper connecting end 704 and the lower connecting end 703.

[0028] During operation, the upper connecting end 704 of the present invention is clamped with the upper clamping end 10, and the lower connecting end 703 is clamped with the lower clamping end 10. The upper connecting end 704 and the lower connecting end 703 are respectively connected to the lower connecting line 21 through the clamping end 10, thereby connecting to both ends of the power supply.

[0029] As a further solution of the present invention, a mounting groove 8 is opened on one side of the connecting seat 2 close to the upper mounting ring 11, and an internal threaded rod 20 is rotatably installed in the mounting groove 8. The internal threaded rod 20 is connected to a clamping plate 9 by the internal thread. The clamping plate 9 is slidingly connected to the mounting groove 8. The clamping plates 9 are close to each other to clamp and fix the insulating part 702. A driving motor is fixedly installed in the mounting groove 8, and the output end of the driving motor is fixedly connected to the internal threaded rod 20.

[0030] During operation, the driving motor of the present invention drives the internal threaded rod 20 to rotate, and the rotation of the internal threaded rod 20 interacts with the clamping plate 9, thereby driving the clamping plate 9 to move in the mounting groove 8. When the upper and lower clamping plates 9 are close to each other, the drop-type switch 7 can be clamped and fixed, so that the drop-type switch 7 can be quickly fixedly connected to the detection device.

[0031] As a further solution of the present invention, the power output terminal in the detection device 1 is fixedly connected to the lower clamping terminal 10 through the lower connecting wire 21 , and the power input terminal is fixedly connected to the upper clamping terminal 10 through the lower connecting wire 21 .

[0032] During operation, the present invention is electrically connected to the clamping terminal 10 via the lower connecting wire 21 .

[0033] As a further solution of the present invention, two groups of lower detection wires 22 are provided and respectively connected to the two poles of the power supply. A scale is provided on the magnetic block 17. In a natural state, the magnetic block 17 is at the lowest point under the action of gravity.

[0034] During operation, the scale on the magnetic block 17 of the present invention can facilitate the user to obtain the moving distance of the magnetic block 17 more intuitively.

[0035] 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 drop-type switch test device, comprising a detection device (1), wherein the detection device (1) comprises a transformer and a power supply, and is characterized in that: The detection device (1) is provided with a plurality of groups of support columns (12), an upper mounting ring (11) is fixedly mounted on the upper end of the support column (12), and the upper mounting ring (11) is provided with: A fixed detection member, the fixed detection member being fixedly mounted on the upper mounting ring (11), the fixed detection member being capable of clamping and fixing the drop-type switch (7), and the upper and lower ends of the fixed detection member being provided with movable connection units, the movable connection units being capable of quickly connecting the drop-type switch (7) to the detection device (1); A movable detection member, the movable detection member is composed of two groups of detection units, the detection units are slidably connected to the upper mounting ring (11), the two groups of detection units are respectively connected to two ends of a power supply in the detection device (1), one end of the detection unit away from the detection device (1) can be quickly connected to the main body of the drop-type switch (7), and the detection units are each provided with a magnetic block (17), and the magnetic block (17) can be moved to different heights according to the size of the resistance.

2. A drop switch test device according to claim 1, characterized in that: The fixed detection component comprises a driving cylinder (3), and a connecting seat (2) is fixedly mounted on both upper and lower ends of the driving cylinder (3), and the lower end of the connecting seat (2) is fixedly mounted on the upper mounting ring (11). Both ends of the driving cylinder (3) are provided with a telescopic rod, and the telescopic rod passes through the connecting seat (2) and is fixedly mounted with a movable block (6) at one end away from the driving cylinder (3), and the movable block (6) is slidably connected to the movable connection unit.

3. A drop-type switch test device according to claim 2, characterized in that: The movable connection unit comprises a movable part (4), an external threaded rod (5) is rotatably mounted on one side of the movable part (4) close to the movable block (6), a clamping end (10) is fixedly mounted on the surface of one side of the movable part (4) close to the connecting seat (2), a thread groove is provided on the movable block (6), the thread groove is threadedly connected to the external threaded rod (5), a rotating motor is fixedly mounted on one end of the movable part (4), and an output end of the rotating motor is fixedly connected to the external threaded rod (5).

4. A drop-type switch test device according to claim 3, characterized in that: The detection unit comprises a movable column (13), the lower end of the movable column (13) is slidably connected to the upper mounting ring (11), the movable column (13) is slidably connected to a movable seat (14), a connecting frame (15) is fixedly mounted on the movable seat (14), a magnetic induction coil (19) is arranged between the connecting frames (15), the upper end of the magnetic induction coil (19) is connected to an upper detection wire (23), an end of the upper detection wire (23) away from the connecting frame (15) is fixedly mounted with a connecting clamp (16), the lower end of the magnetic induction coil (19) is fixedly connected to a lower detection wire (22), the lower end of the lower detection wire (22) is connected to the power supply in the detection device (1), an upper connecting plate (18) is fixedly mounted on the upper end of the connecting frame (15), and a magnetic block (17) is slidably connected to the upper connecting plate (18).

5. A drop-type switch test device according to claim 4, characterized in that: The drop-out switch (7) comprises a fusible tube (701) and an insulating member (702); the lower end of the fusible tube (701) is rotatably connected to the lower end of the insulating member (702); the upper end of the fusible tube (701) is clamped to the insulating member (702); an upper connecting end (704) and a lower connecting end (703) are respectively fixedly mounted at the upper and lower ends of the connection between the fusible tube (701) and the insulating member (702); the upper connecting end (704) and the lower connecting end (703) are capable of being clamped to the clamping end (10); a fusible wire (705) passes through the fusible tube (701); and the upper and lower ends of the fusible wire (705) are respectively connected to the upper connecting end (704) and the lower connecting end (703).

6. A drop-type switch test device according to claim 5, characterized in that: A mounting groove (8) is provided on one side of the connecting seat (2) close to the upper mounting ring (11), an internal threaded rod (20) is rotatably mounted in the mounting groove (8), the internal thread of the internal threaded rod (20) is connected to a clamping plate (9), the clamping plate (9) is slidably connected to the mounting groove (8), the clamping plates (9) are able to clamp and fix the insulating member (702) when the clamping plates (9) are close to each other, a driving motor is fixedly mounted in the mounting groove (8), and the output end of the driving motor is fixedly connected to the internal threaded rod (20).

7. A drop-type switch test device according to claim 6, characterized in that: The power output end in the detection device (1) is fixedly connected to the lower clamping end (10) via a lower connecting line (21), and the power input end is fixedly connected to the upper clamping end (10) via a lower connecting line (21).

8. A drop-type switch test device according to claim 7, characterized in that: The lower detection wires (22) are provided in two groups and are respectively connected to the two poles of the power supply. A scale is provided on the magnetic block (17). In a natural state, the magnetic block (17) is at the lowest point under the action of gravity.

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