On-load current detection device for low-voltage outgoing cable

Abstract

The utility model discloses a low-voltage outgoing cable on-load current detection device, belongs to the technical field of current detection, and mainly solves the problems that a current detection device in the prior art is limited in size, the height of a current induction clamp is difficult to freely adjust, current detection cannot be carried out on a low-voltage outgoing cable at a higher position, and the applicability is not high. The detection device comprises a supporting rod, a detector body is fixedly installed below the supporting rod, a telescopic rod is fixedly installed at the top end of the supporting rod, one end of the telescopic rod is fixedly connected with a first clamp handle through a connecting base, a second clamp handle is arranged on one side of the first clamp handle, and current sensing clamp heads are arranged at one end of the second clamp handle and one end of the first clamp handle. A transmission guide assembly is arranged on the surface of the telescopic rod, two fixing plates are fixedly connected to the surface of the supporting rod, adjusting rods are rotationally connected to the surfaces, close to each other, of the two fixing plates through rotating shafts, and winding holes are formed in the front faces of the adjusting rods in a penetrating mode.

Description

Technical Field

[0001] The utility model relates to the technical field of current detection, and more specifically, to a low-voltage outlet cable load current detection device. Background Art

[0002] Cables are conductors covered with insulation, protective layers, shielding layers, etc., used to transmit electricity or signal current or signal voltage. According to voltage, they can be divided into high-voltage cables and low-voltage cables. Low-voltage cables have the characteristics of reliable operation, no need for poles, no ground occupation, no obstruction of appearance, and little influence from the outside world. They are widely used in low-voltage power distribution systems. There is load current flowing through the low-voltage outgoing cable, and a current detection device is required to detect the load current.

[0003] However, existing current detection devices vary widely. For example, utility model patent CN213041979U relates to a portable leakage current detection device with wireless communication capabilities. This device collects leakage current from the outside of the device body and displays it on a liquid crystal display. A built-in controller performs vector summation on the collected currents to calculate leakage current values ​​for complex wiring. A wireless communication module enables data communication between the three devices, enabling leakage current measurement at both ends of long-distance cables. This device can collect various types of system leakage current, enabling precise measurement and calculation of leakage current at various locations, significantly improving the accuracy and efficiency of system leakage current testing.

[0004] Although the current detection device can perform current detection and is easy to carry, the volume of the detection device is limited, and the height of the current sensing clamp is difficult to adjust freely, and it is impossible to perform current detection on low-voltage outgoing cables at higher locations. The applicability is not high. In order to avoid this phenomenon, it is very necessary to design a low-voltage outgoing cable load current detection device. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] To achieve the above objectives, the present invention provides a low-voltage outlet cable load current detection device, which is achieved by the following specific technical means:

[0007] A low-voltage outlet cable load current detection device includes a support rod, a detector body is fixedly installed below the support rod, a telescopic rod is fixedly installed on the top of the support rod, one end of the telescopic rod is fixedly connected to a first clamp handle through a connecting seat, a second clamp handle is provided on one side of the first clamp handle, and one end of the second clamp handle and the first clamp handle are both provided with current sensing clamp heads, a transmission guide assembly is provided on the surface of the telescopic rod, two fixed plates are fixedly connected to the surface of the support rod, and the surfaces of the two fixed plates close to each other are rotatably connected to an adjustment rod through a rotating shaft, and a winding hole is provided through the front of the adjustment rod.

[0008] Preferably, the transmission guide assembly consists of a fixed frame, a support plate, a first guide pulley, a mounting seat, a second guide pulley and a pulling rope. A fixed frame is provided at the end of the telescopic rod away from the support rod, and the fixed frame is U-shaped. The inner wall of the fixed frame is fixedly connected to two support plates, and the surfaces of the two support plates close to each other are rotatably connected to the first guide pulley through a rotating shaft.

[0009] Preferably, the surface of the support rod is fixedly connected to a mounting seat, and one side surface of the mounting seat is fixedly connected to two horizontal plates. The surfaces of the two horizontal plates close to each other are rotatably connected to a second guide pulley through a rotating shaft, and the second guide pulley is located below the first guide pulley, and one end of the second clamp handle is fixedly connected to a pulling rope.

[0010] Preferably, a compression spring is fixedly connected to the surfaces of the first clamp handle and the second clamp handle that are close to each other, and a through hole is provided through the surface of the support rod, and the through hole can allow the pulling rope to pass through.

[0011] Preferably, the two fixing plates are arranged symmetrically, the pulling rope passes through the winding hole, and the pulling rope is wound around the surfaces of the first guide pulley and the second guide pulley.

[0012] Preferably, a rotary damper is fixedly mounted on the bottom end of the support rod, the bottom of the rotary damper is fixedly connected to a mounting rod, an assembly sleeve is fixed on the surface of the mounting rod, and the detector body is fixed to the outer surface of the assembly sleeve.

[0013] Preferably, a transmission line is connected to one side surface of the detector body, and the detector body is electrically connected to the current sensing clamp through the transmission line. A display screen and an adjustment knob are provided on the front of the detector body, and the display screen is located below the adjustment knob.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] When current detection is performed on a low-voltage outlet cable at a higher location, the telescopic rod is extended to lift the current sensing clamp head to a higher location. When the detection clamp is lifted to a suitable height position, the two current sensing clamp heads are ensured to be in a closed state, and the pulling rope is tightened. One end of the pulling rope is passed through the winding hole, the pulling rope is knotted and tied, and then the adjusting rod is held tightly to drive one end of the deflected adjusting rod to move, and the pulling rope is pulled by one end of the adjusting rod to tighten the pulling rope. Subsequently, through the transmission action of the transmission guide assembly, the end of the second clamp handle is pulled to deflect the second clamp handle, driving the two current sensing clamp heads to open, so that the cable can be placed in the center of the two current sensing clamp heads and pass through. This ensures that the device is easy to use and the height of the detection clamp can be freely adjusted. The current sensing clamp head is used to detect the current flowing through the low-voltage outlet cable at a high location. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a structural diagram of the transmission component;

[0019] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0020] Figure 4 It is a structural diagram of the detection clamp;

[0021] Figure 5 It is an enlarged schematic diagram of point A;

[0022] Figure 6 Schematic diagram of the structure of the adjusting rod.

[0023] In the figure: 1. Support rod; 2. Telescopic rod; 3. Connecting seat; 4. First clamp handle; 5. Second clamp handle; 6. Current sensing clamp head; 7. Compression spring; 8. Fixed frame; 9. Support plate; 10. First guide pulley; 11. Mounting seat; 12. Second guide pulley; 13. Pull rope; 14. Fixed plate; 15. Adjusting rod; 16. Winding hole; 17. Through-hole; 18. Rotary damper; 19. Mounting rod; 20. Assembly sleeve; 21. Detector body; 22. Transmission line; 23. Display screen; 24. Adjusting knob. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0027] like Figure 2 、 Figure 4 as well as Figure 6 As shown, it is a structural schematic diagram of the load current detection device for low-voltage outlet cable in this embodiment, the current detection device includes a support rod 1, a current sensing clamp head 6 and a detector body 21, a telescopic rod 2 is fixedly installed on the top of the support rod 1, one end of the telescopic rod 2 is fixedly connected to the first clamp handle 4 through a connecting seat 3, a second clamp handle 5 is provided on one side of the first clamp handle 4, one end of the second clamp handle 5 and the first clamp handle 4 are both provided with a current sensing clamp head 6, one end of the second clamp handle 5 is fixedly connected to a pulling rope 13, two fixing plates 14 are fixedly connected to the surface of the support rod 1, the two fixing plates 14 are symmetrically arranged, and the surfaces of the two fixing plates 14 close to each other are rotatably connected to an adjusting rod 15 through a rotating shaft, a winding hole 16 is provided through the front of the adjusting rod 15, and the pulling rope 13 passes through the winding hole 16. When performing current detection on a low-voltage outlet cable at a higher position, first extend the telescopic rod 2, and then When the current sensing clamp head 6 is lifted to a high position, when the detection clamp is lifted to a suitable height position, the two current sensing clamp heads 6 are ensured to be in a closed state, and the pulling rope 13 is tightened, one end of the pulling rope 13 is passed through the winding hole 16 of the adjusting rod 15, the pulling rope 13 is knotted and tied, and then the adjusting rod 15 is gripped so that the deflected adjusting rod 15 drives one end thereof to move, and the pulling rope 13 is pulled by one end of the adjusting rod 15, thereby tightening the pulling rope 13. Through the transmission action of the pulling rope 13, the second clamp handle 5 connected to it is pulled, causing the second clamp handle 5 to deflect, thereby driving the two current sensing clamp heads 6 to open, so that the cable can be placed in the center of the two current sensing clamp heads 6 and pass through. While ensuring the convenience of use of the device, the height of the detection clamp can be freely adjusted, and the current sensing clamp head 6 is used to detect the current flowing through the low-voltage outgoing cable at a high position.

[0028] In addition, if Figure 2 and Figure 5 As shown, in this embodiment, a fixing frame 8 is provided at one end of the telescopic rod 2 away from the support rod 1, and the fixing frame 8 is U-shaped, and the inner wall of the fixing frame 8 is fixedly connected to two support plates 9, and the surfaces of the two support plates 9 close to each other are rotatably connected to the first guide pulley 10 through a rotating shaft, and the surface of the support rod 1 is fixedly connected to a mounting seat 11, and one side surface of the mounting seat 11 is fixedly connected to two cross plates, and the surfaces of the two cross plates close to each other are rotatably connected to the second guide pulley 12 through a rotating shaft, and the second guide pulley 12 is located below the first guide pulley 10, and the traction rope 13 is wound around the surfaces of the first guide pulley 10 and the second guide pulley 12, and grooves are provided in the first guide pulley 10 and the second guide pulley 12, and the wound traction rope 13 is stuck in the grooves to guide and limit the traction rope 13.

[0029] It is worth noting that the fixed frame 8, support plate 9, first guide pulley 10, mounting seat 11, second guide pulley 12 and traction rope 13 in this embodiment constitute a transmission guide assembly, which is used to guide the sliding of the pulled traction rope 13 to ensure the stability of the traction rope 13 during movement.

[0030] like Figure 4 As shown, in this embodiment, the surfaces of the first clamp handle 4 and the second clamp handle 5 that are close to each other are fixedly connected with a compression spring 7. The two clamp handles are supported by the rebound energy of the compression spring 7. When there is no external force, the two current sensing clamp heads 6 are always in a closed state. A through hole 17 is provided on the surface of the support rod 1, and the through hole 17 can allow the pulling rope 13 to pass through.

[0031] like Figure 1 and Figure 3 As shown, in this embodiment, a rotary damper 18 is fixedly installed at the bottom end of the support rod 1, and a mounting rod 19 is fixedly connected to the bottom of the rotary damper 18. An assembly sleeve 20 is fixed on the surface of the mounting rod 19, and a detector body 21 is fixedly installed on the outer surface of the assembly sleeve 20. The rotary damper 18 can be used to rotate the support rod 1 and the telescopic rod 2 to adjust the angle of the current sensing clamp 6 to adapt to the position of the low-voltage outgoing cable.

[0032] like Figure 6 As shown, in this embodiment, a transmission line 22 is connected to the surface of one side of the detector body 21, and the detector body 21 is electrically connected to the current sensing clamp 6 through the transmission line 22. A display screen 23 and an adjustment knob 24 are provided on the front of the detector body 21, and the display screen 23 is located below the adjustment knob 24.

[0033] 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 low-voltage outlet cable load current detection device, comprising a support rod (1), a detector body (21) fixedly mounted below the support rod (1), characterized in that: A telescopic rod (2) is fixedly installed on the top of the support rod (1), one end of the telescopic rod (2) is fixedly connected to a first clamp handle (4) through a connecting seat (3), a second clamp handle (5) is provided on one side of the first clamp handle (4), and one end of the second clamp handle (5) and the first clamp handle (4) are both provided with a current sensing clamp head (6), a transmission guide component is provided on the surface of the telescopic rod (2), two fixed plates (14) are fixedly connected to the surface of the support rod (1), and the surfaces of the two fixed plates (14) close to each other are rotatably connected to an adjusting rod (15) through a rotating shaft, and a winding hole (16) is provided on the front of the adjusting rod (15).

2. The low-voltage outlet cable load current detection device according to claim 1, characterized in that: The transmission guide assembly comprises a fixed frame (8), a support plate (9), a first guide pulley (10), a mounting seat (11), a second guide pulley (12) and a pulling rope (13). A fixed frame (8) is provided at one end of the telescopic rod (2) away from the support rod (1), and the fixed frame (8) is U-shaped. The inner wall of the fixed frame (8) is fixedly connected to two support plates (9), and the surfaces of the two support plates (9) close to each other are rotatably connected to the first guide pulley (10) via a rotating shaft.

3. The low-voltage outlet cable load current detection device according to claim 1, characterized in that: The surface of the support rod (1) is fixedly connected to a mounting seat (11), one side surface of the mounting seat (11) is fixedly connected to two horizontal plates, and surfaces of the two horizontal plates close to each other are rotatably connected to a second guide pulley (12) via a rotating shaft, and the second guide pulley (12) is located below the first guide pulley (10), and one end of the second clamp handle (5) is fixedly connected to a pulling rope (13).

4. The low-voltage outlet cable load current detection device according to claim 1, characterized in that: A compression spring (7) is fixedly connected to the surfaces of the first clamp handle (4) and the second clamp handle (5) that are close to each other. A through hole (17) is provided through the surface of the support rod (1), and the through hole (17) can allow the pulling rope (13) to pass through.

5. The low-voltage outlet cable load current detection device according to claim 1, characterized in that: The two fixing plates (14) are symmetrically arranged, the pulling rope (13) passes through the winding hole (16), and the pulling rope (13) is wound around the surfaces of the first guide pulley (10) and the second guide pulley (12).

6. The low-voltage outlet cable load current detection device according to claim 1, characterized in that: A rotation damper (18) is fixedly mounted on the bottom end of the support rod (1), a mounting rod (19) is fixedly connected to the bottom of the rotation damper (18), an assembly sleeve (20) is fixed on the surface of the mounting rod (19), and a detector body (21) is fixed to the outer surface of the assembly sleeve (20).

7. The low-voltage outlet cable load current detection device according to claim 1, characterized in that: A transmission line (22) is connected to a surface of one side of the detector body (21), and the detector body (21) is electrically connected to the current sensing clamp (6) via the transmission line (22). A display screen (23) and an adjustment knob (24) are provided on the front of the detector body (21), and the display screen (23) is located below the adjustment knob (24).

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