Multipath power supply detection device

Abstract

The utility model discloses a multipath power supply detection device, which relates to the field of electric power detection, and comprises a phase connector which is connected with a phase detector and is connected with multiphase electricity, the phase connector comprises an insulating clamp body, an insulating handle and a deflection piece which is supported between the insulating clamp body and the insulating handle, the top ends of the insulating plier body and the insulating handle are jointly and movably connected with a clamp for limiting a cable, clamps for clamping the cable are symmetrically attached to the two sides of the clamp, when the insulating handle is pressed, the clamp is driven to overcome elastic force to deflect through the lever effect of the deflection piece, and at the moment, limiting bosses on the two sides of the clamp body synchronously drive the clamp body to move. The sawtooth-shaped pressing rubber on the top of the clamp body makes contact with the cable firstly to form pre-pressing. In the process, the tension spring continuously provides opposite tension, so that the limiting groove of the clamp body is always tightly attached to the boss of the clamp body, the linkage stability of the clamp body and the clamp is ensured, and displacement of the cable is avoided from the initial stage.

Description

Technical Field

[0001] The utility model relates to the field of power detection, in particular to a multi-channel power supply detection device. Background Art

[0002] When used for phase detection, the phase detector mainly collects the voltage / current signals of multiple power sources (such as three-phase electricity) through voltage or current transformers. After amplification, filtering and analog-to-digital conversion, the microcontroller or digital signal processing module calculates the phase angle, frequency, amplitude and other parameters of each phase, thereby achieving accurate measurement of the phase difference between each phase power supply and identification of the phase sequence (positive sequence, reverse sequence). When the phase difference exceeds the set threshold or the sequence is wrong, the device will output an alarm message through an audible and visual alarm or a communication interface. At the same time, it can also display data such as the phase value and phase difference of each phase in real time, and provide interfaces such as relay output and analog output to facilitate linkage control with other equipment.

[0003] However, during the current testing, it is necessary to connect the power to the power connection area of ​​the cable. During use, three power clamps are in contact with the cable, relying on a large clamping force to achieve clamping and power connection. However, this type of method is very prone to slippage when subjected to a large pull, and the traditional clamping method is very prone to deflection of the clamping direction during pulling, resulting in electric sparks, etc., which poses a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of potential safety hazards in the power connection process of the current multi-channel power supply detection device and to propose a multi-channel power supply detection device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a multi-channel power supply detection device, including a phase connector for connecting a phase detector to multi-phase electricity, the phase connector including an insulating clamp body and an insulating handle, and a deflection member supported between the insulating clamp body and the insulating handle, the top ends of the insulating clamp body and the insulating handle are jointly movably connected to a clamp for limiting the cable, and clamps for clamping the cable are symmetrically attached to both sides of the clamp, and the clamp is movably connected in the insulating clamp body, the top of the insulating clamp body is provided with a power connection head that cooperates with the clamp and the clamp to press the cable and connect the electricity, the bottom thread of the insulating clamp body is penetrated by a threaded column for limiting the state of the deflection member, one side of the clamp and the bottom ends of the two clamps are jointly fixed with a tension spring that provides opposite pulling force thereto, and the inner wall of the insulating clamp body is fixed with an elastic arc piece for elastically supporting the clamp.

[0006] As a further description of the above technical solution: the clamp includes a card body, and the card body is provided with an elastic support groove for limiting the bottom end of the elastic arc piece, the card body is also provided with a limiting boss for supporting the clamps on both sides, the card body is provided with a first tension part fixed to the top of the tension spring, the card body is provided with a second movable part movably connected to the top of the insulating handle, and the right side of the card body is provided with a first movable part movably connected to the inner wall of the insulating clamp body.

[0007] As a further description of the above technical solution: the clamp includes a clamp body, and connecting parts coaxial with the first movable part are provided on both sides of the clamp body, a limiting groove engaged with the limiting boss is provided on the clamp body, a second tensioning part fixed to the other end of the tension spring is provided at the bottom of the clamp body, an engaging groove is provided at the top of the clamp body, and a pressure-holding rubber is installed in the engaging groove.

[0008] As a further description of the above technical solution: the bottom end of the deflection member is movably connected to the inner wall of the insulating clamp body through a pin shaft, the top end of the deflection member is movably connected to one side of the insulating handle, and the bottom end of the deflection member is limited by the top end of the threaded column.

[0009] As a further description of the above technical solution: an electrical connection head is provided on the top of the insulating clamp body, and the side of the electrical connection head opposite to the card body is concave.

[0010] As a further description of the above technical solution: both sides of the pressing rubber are convex and fit into the fitting groove, and the surface of the pressing rubber is serrated.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0012] In this solution's initial state, the elastic arc continuously pushes against the clamp, keeping the device open and facilitating rapid cable insertion. When the insulated handle is pressed, the lever action of the deflector drives the clamp to overcome the elastic force and deflect. The retaining bosses on either side of the clamp simultaneously move the clamp, and the serrated gripping rubber on the top of the clamp first contacts the cable, creating a pre-loaded hold. During this process, the tension spring continuously applies opposing tension, keeping the clamp's retaining grooves in close contact with the clamp's bosses. This ensures the stability of the linkage between the clamp and the clamp, preventing cable displacement from the initial stage.

[0013] When the clamp stops moving due to the cable, the continued pressure of the insulated handle continues to deflect, further stretching the tension spring. This significant increase in spring tension, combined with the clamp's lever mechanism, creates an exponentially increasing pressure on the cable. Simultaneously, the clamp's recessed structure, combined with the connector, completely embeds the cable and creates a mechanical lock. This dual combination of the clamp's elastic preload and the clamp's rigid locking mechanism significantly prevents the cable from slipping or rotating during connection testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the phase connector of the utility model;

[0016] Figure 3 This is a front view schematic diagram of the phase connector of the present utility model;

[0017] Figure 4 This is an exploded schematic diagram of the phase connector of the present utility model;

[0018] Figure 5 This is an exploded schematic diagram of the cross section of the phase connector of the present invention;

[0019] Figure 6 This is a schematic diagram of the matching state of the clamp and fixture of the utility model;

[0020] Figure 7 It is a three-dimensional schematic diagram of the clamp of the utility model;

[0021] Figure 8 It is a three-dimensional schematic diagram of the clamp of the present utility model.

[0022] Legend:

[0023] 101. Phase detector; 102. Phase connector;

[0024] 1. Insulated clamp body;

[0025] 2. Clamp; 21. Clamp body; 22. Elastic support groove; 23. Position limiting boss; 24. First movable part; 25. Second movable part; 26. First tension part;

[0026] 3. Clamp; 31. Clamp body; 32. Fitting groove; 33. Holding rubber; 34. Connecting portion; 35. Limiting groove; 36. Second tensioning portion;

[0027] 4. Tension spring; 5. Insulated handle; 6. Deflector; 7. Elastic arc piece; 8. Electrical connector; 9. Threaded column. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1 - Figure 8 As shown, the utility model provides: a multi-channel power supply detection device, including a phase connector 102 connected to a phase detector 101 to access multi-phase electricity, the phase connector 102 includes an insulating clamp body 1 and an insulating handle 5, and a deflection member 6 supported between the insulating clamp body 1 and the insulating handle 5, the top of the insulating clamp body 1 and the insulating handle 5 are jointly movably connected to a clamp 2 for limiting the position of the cable, and the two sides of the clamp 2 are symmetrically fitted with clamps 3 for clamping the cable, and the clamp 3 is movably connected in the insulating clamp body 1, the top of the insulating clamp body 1 is provided with a power supply head 8 that cooperates with the clamp 3 and the clamp 2 to press the cable and connect the electricity, the bottom thread of the insulating clamp body 1 is penetrated by a threaded column 9 for limiting the state of the deflection member 6, one side of the clamp 2 and the bottom ends of the two clamps 2 are jointly fixed with a tension spring 4 that provides opposite pulling force thereto, and the inner wall of the insulating clamp body 1 is fixed with an elastic arc piece 7 for elastically supporting the clamp 2.

[0030] When in use, the elastic arc piece 7 cooperates with the elastic support groove 22 of the clamp 2, so that the clamp 2 is in the open state by default, which is convenient for quick placement of the cable. When the insulating handle 5 is pressed, the deflection member 6 forms a lever structure to reduce the difficulty of applying force. At the same time, the threaded column 9 can be used to lock the state of the deflection member 6, realizing hands-free fixation and improving operational convenience.

[0031] The recessed design on the side of the clamp 2 opposite the connector 8 can fit tightly against the side wall of the circular cable. Combined with the interlocking structure of the limiting boss 23 and the limiting groove 35 of the clamp 3, this ensures that the clamp body 31 always fits in place when the clamp body 21 moves. The tension of the tension spring 4 causes the clamp body 31 to press the cable using the principle of leverage. The serrated surface of the pressing rubber 33 and the trapezoidal protrusion create an interference fit, significantly increasing friction and achieving double clamping and locking of the cable, effectively preventing slippage, sliding, and rotation.

[0032] The overall structure combines pre-clamping and locking structures to avoid sparks caused by pulling on wires, significantly improving safety and stability. The operation process is consistent and suitable for multi-phase electrical connection scenarios that require reliable phase detection, combining high efficiency and reliability.

[0033] Specifically, such as Figure 7 As shown, the clamp 2 includes a card body 21, and the card body 21 is provided with an elastic support groove 22 for limiting the bottom end of the elastic arc piece 7, and the card body 21 is also provided with a limiting boss 23 for supporting the clamps 3 on both sides. The card body 21 is provided with a first tensioning part 26 fixed to the top of the tension spring 4, and the card body 21 is provided with a second movable part 25 movably connected to the top of the insulating handle 5. The right side of the card body 21 is provided with a first movable part 24 movably connected to the inner wall of the insulating clamp body 1.

[0034] By providing the elastic support groove 22 , the elastic support groove 22 can lock the bottom of the elastic arc piece 7 . When the clamp 2 deflects, the elastic support groove 22 reacts to bend the elastic arc piece 7 .

[0035] Specifically, such as Figure 8 As shown, the clamp 3 includes a clamp body 31, and connecting parts 34 coaxial with the first movable part 24 are provided on both sides of the clamp body 31, a limiting groove 35 engaged with the limiting boss 23 is provided on the clamp body 31, and a second tensioning part 36 fixed to the other end of the tension spring 4 is provided at the bottom of the clamp body 31, and an engaging groove 32 is provided at the top of the clamp body 31, and a holding rubber 33 is installed in the engaging groove 32.

[0036] By providing the limiting groove 35 , it can be engaged with the limiting boss 23 . When the clamping body 31 is subjected to the force of the tension spring 4 , the limiting groove 35 is blocked by the limiting boss 23 and always remains in contact with it.

[0037] By providing the second pulling portion 36 , the second pulling portion 36 can be fixed to the bottom end of the tension spring 4 , and the tension spring 4 acts on the second pulling portion 36 to pull the clamping body 31 to form a deflection structure of the lever.

[0038] Specifically, such as Figure 3 As shown, the bottom end of the deflection member 6 is movably connected to the inner wall of the insulating clamp body 1 through a pin shaft, the top end of the deflection member 6 is movably connected to one side of the insulating handle 5, and the bottom end of the deflection member 6 is limited by the top end of the threaded column 9.

[0039] By setting the deflection member 6, the deflection member 6 can support the insulating handle 5, so that it can form a lever and act on the second movable part 25 of the clamp 2, so that its force can be reduced, and the clamp 2 can be pried to deflect through the first movable part 24 thereon. At the same time, the deflection member 6 can push the pressure upward and itself will also tilt. The change in inclination can be squeezed and locked through the threaded column 9 at the bottom.

[0040] Specifically, such as Figure 2 As shown, a connection head 8 is provided on the top of the insulating clamp body 1 , and the side of the connection head 8 opposite to the card body 21 is concave.

[0041] The recess on the side opposite to the electrical connector 8 and the card body 21 can fully match the side wall of the round cable, improving the contact effect;

[0042] Specifically, such as Figure 8 As shown, both sides of the pressing rubber 33 are convex and fit into the fitting groove 32, and the surface of the pressing rubber 33 is serrated.

[0043] Trapezoidal cross-section protrusions are set on both sides of the rubber, forming an interference fit with the shape in the fitting groove 32 of the clamp 3 to ensure that no lateral displacement occurs under a vibration environment. At the same time, the serrated design greatly increases the friction force, which can press and position the cable surface.

[0044] When this solution is in use, the elastic arc piece 7 acts on the clamp 2, so that the elastic support groove 22 of the clamp body 21 is supported by the elastic arc piece 7, keeping the clamp 2 deflected to the left, and the whole is in an open state. By placing the power connection part of the cable into the power connection head 8, the insulating handle 5 is pressed at this time. The insulating handle 5 forms a lever under the support of the deflection member 6 and pries the clamp 2 to overcome the supporting force of the elastic arc piece 7, so that the clamp 2 cooperates with the power connection head 8 to clamp the cable when it is deflected;

[0045] At the same time, during the deflection of the clamp 2, the limiting bosses 23 on both sides of the card body 21 move synchronously, and the clamps 31 on both sides of the card body 21 move with the limiting bosses 23. Under the action of the tension spring 4, the limiting grooves 35 on the surface of the card body 21 always fit with the limiting bosses 23, so that the clamps 31 move with the card body 21 until the card body 21 cooperates with the electrical connector 8 to limit the cable, so that the cable is hooked in a concave shape to prevent it from slipping.

[0046] As the card body 21 moves, the clamping body 31 moves with it. The clamping body 31 first presses the cable against the terminal 8. At this time, the clamping body 31 is blocked by the cable and cannot move further. However, the card body 21 continues to move, which further increases the tension of the tension spring 4. Under the action of the tension, the card body 21 acts in a lever-like manner, tightly clamping the cable to the terminal 8. The increased pressure of the pressing rubber 33 increases the friction, making it less likely to slip and rotate.

[0047] This method increases the tension of the tension spring 4 and combines the lever activity principle of the clamp body 31 to pre-clamp and fix the cable. Then the card body 21 and the electrical connector 8 clamp the cable to form a locking structure, which can prevent it from falling off while avoiding sliding and displacement, and avoid electric sparks caused by pulling the wires, thereby greatly improving the safety and stability of use.

[0048] At the same time, after the clamping is completed, by rotating the threaded column 9, the threaded column 9 moves up and presses against the lower arc surface of the deflection member 6. At this time, the power-on state can be locked without the need for continued clamping by hand. After use, the threaded column 9 can be automatically disengaged by directly rotating it in the opposite direction.

[0049] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A multi-channel power supply detection device, comprising a phase connector (102) for connecting a phase detector (101) to a multi-phase power supply, wherein the phase connector (102) comprises an insulating clamp body (1) and an insulating handle (5), and a deflection member (6) supported between the insulating clamp body (1) and the insulating handle (5), characterized in that: The top ends of the insulating clamp body (1) and the insulating handle (5) are movably connected to a clamp (2) for limiting the position of the cable, and clamps (3) for clamping the cable are symmetrically attached to both sides of the clamp (2), and the clamp (3) is movably connected in the insulating clamp body (1). The top of the insulating clamp body (1) is provided with a power connector (8) for cooperating with the clamp (3) and the clamp (2) to press the cable and connect electricity. The bottom thread of the insulating clamp body (1) is penetrated by a threaded column (9) for limiting the position of the deflection member (6). One side of the clamp (2) and the bottom ends of the two clamps (2) are fixed with a tension spring (4) for providing opposite pulling force thereto. The inner wall of the insulating clamp body (1) is fixed with an elastic arc piece (7) for elastically supporting the clamp (2).

2. A multi-channel power supply detection device according to claim 1, characterized in that: The clamp (2) includes a card body (21), and the card body (21) is provided with an elastic support groove (22) for limiting the bottom end of the elastic arc piece (7), and the card body (21) is also provided with a limiting boss (23) for supporting the clamps (3) on both sides. The card body (21) is provided with a first tension part (26) fixed to the top end of the tension spring (4), and the card body (21) is provided with a second movable part (25) movably connected to the top end of the insulating handle (5). The right side of the card body (21) is provided with a first movable part (24) movably connected to the inner wall of the insulating clamp body (1).

3. A multi-channel power supply detection device according to claim 2, characterized in that: The clamp (3) includes a clamp body (31), and connecting parts (34) coaxial with the first movable part (24) are provided on both sides of the clamp body (31), a limiting groove (35) engaged with the limiting boss (23) is provided on the clamp body (31), a second tensioning part (36) fixed to the other end of the tension spring (4) is provided at the bottom of the clamp body (31), and an engaging groove (32) is provided on the top of the clamp body (31), and a pressure-holding rubber (33) is installed in the engaging groove (32).

4. A multi-channel power supply detection device according to claim 1, characterized in that: The bottom end of the deflection member (6) is movably connected to the inner wall of the insulating clamp body (1) through a pin shaft, the top end of the deflection member (6) is movably connected to one side of the insulating handle (5), and the bottom end of the deflection member (6) is limited by the top end of the threaded column (9).

5. A multi-channel power supply detection device according to claim 2, characterized in that: An electrical connection head (8) is provided on the top of the insulating clamp body (1), and the side of the electrical connection head (8) opposite to the card body (21) is arranged in a concave shape.

6. The multi-channel power supply detection device according to claim 3, characterized in that: Both sides of the pressing rubber (33) are convex and fit with the fitting groove (32), and the surface of the pressing rubber (33) is serrated.

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