Terminal residual current monitoring device
By designing wire clamping mechanisms and fastening mechanisms suitable for lines with different thicknesses, the problem that existing power equipment detection devices cannot be suitable for lines with too thick or thinness is solved, and a wider and more stable detection effect is achieved.
Patent Information
- Application Number
- CN202311145060.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-05
- Publication Date
- 2025-03-07
AI Technical Summary
The residual current detection device of existing power equipment cannot be suitable for lines that are too thick or too thin, and the connection ends lack tightening measures, resulting in unstable detection.
A terminal residual current monitoring device is designed, adopting a wire clamping mechanism and a fastening mechanism. The wire clamping mechanism includes an arc-shaped clamping plate, a ball and a spring. The fastening mechanism includes a cylinder, a knob rod, an arc-shaped clamping block and a limiting rod, which can clamp lines of different thicknesses and maintain connection tightness.
The device can adapt to equipment to be tested in different shapes and sizes, improves the breadth and stability of detection, reduces wear on the lines, and ensures the normal use of the device.
Smart Images
Figure CN119574916A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric power equipment detection tools, and in particular to a terminal residual current monitoring device. Background Art
[0002] When a fault occurs in existing power equipment, especially when the main protection device trips and the power is cut off, the leakage fault point is generally determined by using a clamp ammeter to conduct an overall inspection of all lines in the entire substation. During the inspection process, it is often necessary to measure the residual current of several strands of wires in the entire circuit. After searching, a Chinese patent with an authorization announcement number of is disclosed, which discloses a residual current detection device with convenient detection, including a clamp ammeter, the clamp ammeter includes a shell, a detection jaw, a circuit board and a battery, the detection jaw is electrically connected to the circuit board, a display screen is provided on the shell, and also includes a Rogowski coil electrically connected to the circuit board, the Rogowski coil is movably connected to the clamp ammeter, a switching switch is provided on the side wall of the shell, the switching switch is electrically connected to the circuit board, the switching switch has a first gear and a second gear, the detection jaw works when the switching switch is switched to the first gear, and the Rogowski coil works when the switching switch is switched to the second gear, so that the detection jaw and the Rogowski coil of the residual current detection device can work separately, that is, the residual current detection device has two detection functions, which greatly improves the versatility of the residual current detection device, and can well improve the detection convenience of the clamp ammeter and the maintenance convenience of the maintenance personnel.
[0003] However, in actual use, this solution can only clamp lines of fixed thickness due to the fixed inner wall structure of the fixed clamp and the movable clamp, and is not suitable for lines that are too thick or too thin, resulting in limitations in use; secondly, when the first connecting end is connected to the shell, it is at the bottom and lacks fastening measures, so it may fall off, which is not conducive to the normal use of the device.
[0004] Therefore, we made improvements on this and proposed a terminal residual current monitoring device. Summary of the invention
[0005] In order to make up for the above deficiencies, the present invention provides a terminal residual current monitoring device.
[0006] The present invention is achieved in that:
[0007] A terminal residual current monitoring device comprises a shell, a connecting wire and a hollow coil, a clamp seat is installed at the top of the shell, a detection jaw is arranged at the top of the clamp seat, arc grooves are arranged on both sides of the inner wall of the detection jaw, a wire clamping mechanism is arranged inside the two arc grooves, the wire clamping mechanism comprises a pair of arc clamping plates, a plurality of balls and a plurality of springs, the pair of arc clamping plates are respectively slidably connected to the inside of the two arc grooves, the inside of the two arc grooves are respectively connected to a plurality of springs, one end of the plurality of springs is respectively connected to one side of the pair of arc clamping plates Connection, a pair of adjacent sides of the arc-shaped clamping plates are provided with a plurality of spherical grooves, and the interiors of the plurality of spherical grooves are respectively rotatably connected to the plurality of ball bearings, and a fastening mechanism is provided at the bottom end of the shell, and the fastening mechanism includes a cylinder, a knob rod, an arc-shaped clamping block and a limit rod, and the two sides of the cylinder are respectively threadedly connected to the knob rod, and one end of the two knob rods respectively extends to the interior of the cylinder and is rotatably connected to one side of the arc-shaped clamping block, and the adjacent sides of the two arc-shaped clamping blocks are respectively fitted with one end of the connecting wire, and one end of the connecting wire is connected to one end of the hollow coil.
[0008] Furthermore, slide grooves are respectively provided on both sides of the inner wall of the cylinder, and the interior of the slide grooves is respectively connected to a slidable limit rod, and one end of the limit rod is connected to one side of the arc-shaped clamping block.
[0009] The beneficial effect of adopting the above further solution is that, by sliding the limit rod inside the slide groove, the range of motion of the arc-shaped clamp block is limited, thereby preventing the arc-shaped clamp block from rotating along with the knob rod.
[0010] Furthermore, the hollow coil includes a connector, a coil body and a magnetic buckle, and the coil body is installed on one side of the top end of the connector.
[0011] The beneficial effect of adopting the above further scheme is that, through the connection and use of the coil body, the coil body can be deformed and can adapt to the equipment to be detected of different shapes and sizes, which greatly improves the detection versatility of the hollow coil and thus improves the detection versatility of the device.
[0012] Furthermore, one end of the coil body is connected to a magnetic buckle, and one side of the magnetic buckle is adsorbed and connected to one end of the connector.
[0013] The beneficial effect of adopting the above further solution is that, through the connection of the magnetic buckle, the docking of one end of the coil body and the connector is more convenient.
[0014] Furthermore, the detection jaws include a right clamp and a left clamp, and the right clamp and the left clamp are hinged to each other.
[0015] The beneficial effect of adopting the above further solution is that the circuit can be clamped conveniently by installing and using the right clamp and the left clamp.
[0016] Furthermore, the shell includes a shell, a regulating knob and a push handle. The regulating knob is installed on one side of the shell, and the outer wall of the regulating knob is flush with the outer wall of the shell.
[0017] The beneficial effect of adopting the above further solution is that, by installing and using the regulating knob, it is convenient to perform simple data adjustment on the device.
[0018] Furthermore, a handle is installed on one side of the shell, and one side of the handle is connected to one side of the right clamp.
[0019] The beneficial effect of adopting the above further solution is that the opening and closing of the detection jaws can be easily controlled by using the connection of the handle.
[0020] Furthermore, a display screen is embedded and installed on one side of the clamp seat, and a protective film is pasted on the outer wall of the display screen.
[0021] The beneficial effect of adopting the above further solution is that, by installing and using the display screen, it is convenient to observe the detection data of the device in real time.
[0022] Furthermore, the outer walls of the shell and the handle are respectively covered with insulating sleeves.
[0023] The beneficial effect of adopting the above further solution is that the safety of the device is effectively improved through the use of the insulating sleeve as a set.
[0024] The beneficial effects of the present invention are as follows: through the cooperation between the detection jaws and the wire clamping mechanism, the device can clamp the ends of lines of different thicknesses, wherein, through the elastic action of the spring on the two arc-shaped clamping plates, the two arc-shaped clamping plates respectively maintain a tendency to face each other, so that the two arc-shaped clamping plates can be adjusted to adapt to lines of different thicknesses, and then through the connection and use of balls, the line can slide arbitrarily when it contacts the detection jaws, and the traditional sliding friction is replaced by rolling friction, thereby effectively reducing the wear on the line; secondly, by rotating the knob rod, the knob rod retracts and squeezes the arc-shaped clamping block until the two arc-shaped clamping blocks complete the clamping of one end of the connecting line, and through the sliding connection of the limit rod, the two arc-shaped clamping blocks maintain stable movement, thereby ensuring that the connection between the shell and the connecting line remains tight. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 A three-dimensional diagram of a terminal residual current monitoring device provided by the present invention;
[0027] Figure 2 A cross-sectional view of a wire clamping mechanism of a terminal residual current monitoring device provided by the present invention;
[0028] Figure 3 A cross-sectional view of a fastening mechanism of a terminal residual current monitoring device provided by the present invention;
[0029] Figure 4 A schematic diagram of an air-core coil of a terminal residual current monitoring device provided by the present invention;
[0030] Figure 5 This is a front view of the shell of a terminal residual current monitoring device provided by the present invention.
[0031] In the figure: 100, shell; 1001, shell; 1002, regulating knob; 1003, button; 200, connecting wire; 300, hollow coil; 3001, connector; 3002, coil body; 3003, magnetic buckle; 400, detection jaws; 4001, right clamp; 4002, left clamp; 500, clamp seat; 600, display screen; 700, wire clamping mechanism; 7001, arc clamping plate; 7002, ball; 7003, spring; 800, fastening mechanism; 8001, cylinder; 8002, knob rod; 8003, arc clamping block; 8004, limit rod. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.
[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.
[0034] Embodiment 1
[0035] See also Figure 1-5The present invention provides a technical solution: a terminal residual current monitoring device, comprising a housing 100, a connecting wire 200 and a hollow coil 300, a clamp seat 500 is installed at the top of the housing 100, a detection jaw 400 is arranged at the top of the clamp seat 500, arc grooves are arranged on both sides of the inner wall of the detection jaw 400, and a wire clamping mechanism 700 is arranged inside the two arc grooves, and the wire clamping mechanism 700 includes a pair of arc clamping plates 7001, a plurality of balls 7002 and a plurality of springs 7003, the pair of arc clamping plates 7001 are respectively slidably connected to the inside of the two arc grooves, the inside of the two arc grooves are respectively connected to a plurality of springs 7003, one end of the plurality of springs 7003 is respectively connected to the pair of arc clamping plates 700 1, a pair of arc-shaped clamping plates 7001 are connected on one side, and adjacent sides are provided with a plurality of spherical grooves, and the interiors of the plurality of spherical grooves are respectively rotatably connected to a plurality of ball bearings 7002, and a fastening mechanism 800 is provided at the bottom end of the housing 100, and the fastening mechanism 800 comprises a cylinder 8001, a knob rod 8002, an arc-shaped clamping block 8003 and a limiting rod 8004, and the knob rods 8002 are respectively threadedly connected to the two sides of the cylinder 8001, and one end of the two knob rods 8002 respectively extends to the interior of the cylinder 8001 and is rotatably connected to one side of the arc-shaped clamping block 8003, and the adjacent sides of the two arc-shaped clamping blocks 8003 are respectively fitted with one end of the connecting line 200, and one end of the connecting line 200 is connected to one end of the hollow coil 300.
[0036] Embodiment 2
[0037] See also Figure 1-5As an embodiment of the present invention, further, slide grooves are respectively provided on both sides of the inner wall of the cylinder 8001, and the interior of the slide grooves is respectively connected with a sliding limit rod 8004, and one end of the limit rod 8004 is connected to one side of the arc clamping block 8003. The limit rod 8004 slides inside the slide groove to limit the range of movement of the arc clamping block 8003, thereby preventing the arc clamping block 8003 from rotating with the knob rod 8002. The hollow coil 300 includes a connector 3001, a coil body 3002 and a magnetic buckle 3003. The coil body 3002 is installed on one side of the top of the connector 3001. Through the connection and use of the coil body 3002, the coil body 3002 is deformable and can adapt to devices to be detected of different shapes and sizes, greatly improving the detection versatility of the hollow coil 300, thereby improving the detection versatility of the device. One end of the coil body 3002 is connected to the magnetic buckle 3003, and one side of the magnetic buckle 3003 is adsorbed and connected to one end of the connector 3001. Through the connection of the magnetic buckle 3003, the docking of one end of the coil body 3002 with the connector 3001 is more convenient. The detection jaw 400 includes a right clamp 4001 and a left clamp 4002. The right clamp 4001 and the left clamp 4002 are hinged to each other. Through the installation and use of the right clamp 4001 and the left clamp 4002, it is convenient to clamp the line. The shell 100 includes a shell 1001, a regulating knob 1002 and a button 1003. The regulating knob 1002 is installed on one side of the shell 1001, and the outer wall of the regulating knob 1002 is flush with the outer wall of the shell 1001. Through the installation and use of the regulating knob 1002, it is convenient to perform simple data adjustment on the device.
[0038] Embodiment 3
[0039] See also Figure 1-5 As an embodiment of the present invention, further, a button handle 1003 is installed on one side of the shell 1001, and one side of the button handle 1003 is connected to one side of the right clamp 4001. Through the connection and use of the button handle 1003, it is convenient to control the opening and closing of the detection jaw 400. A display screen 600 is embedded and installed on one side of the clamp seat 500. A protective film is pasted on the outer wall of the display screen 600. Through the installation and use of the display screen 600, it is convenient to observe the detection data of the device in real time. The outer walls of the shell 1001 and the button handle 1003 are respectively covered with insulating sleeves. Through the use of the insulating sleeves, the safety of the use of the device is effectively improved.
[0040] Specifically, the working principle of the terminal residual current monitoring device is as follows: when using it, first check whether the structure of the device is intact, and then put it into use after ensuring that the structure is intact. Among them, through the elastic effect of the spring 7003 on the two arc-shaped clamping plates 7001, the two arc-shaped clamping plates 7001 respectively maintain a tendency to face each other, so that the two arc-shaped clamping plates 7001 can be adjusted to adapt to lines of different thicknesses, and then through the connection and use of the ball 7002, the line can slide arbitrarily when it contacts the detection jaw 400, and the traditional sliding friction is replaced by rolling friction, which effectively reduces the wear on the line; secondly, by turning the knob rod 8002, the knob rod 80 02 The arc-shaped clamping blocks 8003 are indented and squeezed until the two arc-shaped clamping blocks 8003 complete clamping of one end of the connecting line 200, and the two arc-shaped clamping blocks 8003 are connected by the sliding connection of the limit rod 8004 to keep stable movement, thereby ensuring that the connection between the shell 100 and the connecting line 200 remains tight, and then the coil body 3002 is connected and used to make the coil body 3002 deformable and adaptable to equipment to be tested of different shapes and sizes, greatly improving the detection versatility of the hollow coil 300, thereby improving the detection versatility of the device, and through the connection of the magnetic buckle 3003, it is more convenient to connect one end of the coil body 3002 with the connector 3001.
[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A terminal residual current monitoring device, characterized in that: The invention comprises a housing (100), a connecting wire (200) and a hollow coil (300), wherein a clamp seat (500) is installed at the top of the housing (100), a detection jaw (400) is provided at the top of the clamp seat (500), arc-shaped grooves are provided on both sides of the inner wall of the detection jaw (400), and a wire clamping mechanism (700) is provided inside the two arc-shaped grooves, respectively. The wire clamping mechanism (700) comprises a pair of arc-shaped clamping plates (7001), a plurality of ball bearings (7002) and a plurality of springs (7003), wherein the pair of arc-shaped clamping plates (7001) are respectively slidably connected inside the two arc-shaped grooves, and the two arc-shaped grooves are respectively connected inside with a plurality of springs (7003), and one end of the plurality of springs (7003) is respectively connected to one side of the pair of arc-shaped clamping plates (7001), and the pair of arc-shaped clamping plates ( A plurality of spherical grooves are provided on the adjacent side of the cylinder (8001), and the interiors of the plurality of spherical grooves are rotatably connected to the plurality of balls (7002). A fastening mechanism (800) is provided at the bottom end of the housing (100), and the fastening mechanism (800) comprises a cylinder (8001), a knob rod (8002), an arc-shaped clamping block (8003) and a limit rod (8004). The two sides of the cylinder (8001) are respectively threadedly connected to the knob rod (8002), one end of the two knob rods (8002) respectively extends to the interior of the cylinder (8001) and is rotatably connected to one side of the arc-shaped clamping block (8003), and the adjacent sides of the two arc-shaped clamping blocks (8003) are respectively fitted with one end of the connecting wire (200), and one end of the connecting wire (200) is connected to one end of the hollow coil (300).
2. A terminal residual current monitoring device according to claim 1, characterized in that: Slide grooves are provided on both sides of the inner wall of the cylinder (8001), and the interior of the slide grooves is slidably connected to limit rods (8004), and one end of the limit rod (8004) is connected to one side of the arc-shaped clamping block (8003).
3. The terminal residual current monitoring device according to claim 1, characterized in that: The hollow coil (300) comprises a connector (3001), a coil body (3002) and a magnetic buckle (3003), and the coil body (3002) is installed on one side of the top end of the connector (3001).
4. A terminal residual current monitoring device according to claim 3, characterized in that: One end of the coil body (3002) is connected to the magnetic buckle (3003), and one side of the magnetic buckle (3003) is adsorbed and connected to one end of the connector (3001).
5. The terminal residual current monitoring device according to claim 1, characterized in that: The detection jaws (400) include a right clamp (4001) and a left clamp (4002), and the right clamp (4001) and the left clamp (4002) are hinged to each other.
6. A terminal residual current monitoring device according to claim 5, characterized in that: The housing (100) comprises a shell (1001), a regulating knob (1002) and a button (1003); the regulating knob (1002) is installed on one side of the shell (1001); and the outer wall of the regulating knob (1002) is flush with the outer wall of the shell (1001).
7. The terminal residual current monitoring device according to claim 7, characterized in that: A push handle (1003) is installed on one side of the shell (1001), and one side of the push handle (1003) is connected to one side of the right clamp (4001).
8. The terminal residual current monitoring device according to claim 1, characterized in that: A display screen (600) is embedded and installed on one side of the clamp seat (500), and a protective film is pasted on the outer wall of the display screen (600).
9. The terminal residual current monitoring device according to claim 8, characterized in that: The outer walls of the shell (1001) and the button (1003) are respectively covered with insulating sleeves.