Wiring clamp

Abstract

The utility model relates to a jointing clamp which comprises a clamp body, a clamping mechanism is arranged on the clamp body, an insulating sleeve is telescopically arranged on the clamp body, a conductive trigger rod is in threaded connection in an inner hole of the insulating sleeve, and the lower end portion of the trigger rod extends out of the insulating sleeve. The insulating sleeve is provided with a non-triggering position extending out of the clamp body and a triggering position retracting into the clamp body, a first detection part used for detecting whether hooking is carried out or not and a conductive second detection part used for detecting the material of a hooking line are arranged on the telescopic path of the insulating sleeve, and when the hooking line is hooked in place, the second detection part is used for detecting the material of the hooking line. The insulating sleeve reaches a triggering position under external force, the lower end of the triggering rod is in contact with the hanging circuit, the triggering rod is in contact with the second detection component for conduction, the triggering rod triggers the first detection component, and the first detection component and the second detection component are both electrically connected with the control device. And information such as whether hitching is in place or not and the material of a hitching line can be automatically detected.

Description

Technical Field

[0001] This utility model relates to the field of electrical safety operations, and in particular to a wiring clamp. Background Technology

[0002] As a safety tool in power production, grounding wires are widely used in the maintenance of power equipment due to their advantages of low cost, simple and reliable principle, and convenient operation. They provide grounding protection for the equipment or lines under maintenance, preventing personal injury and equipment damage caused by accidental power surges. A grounding wire consists of a clamp that connects to a live wire, a soft copper wire connected to the clamp at one end, and a grounding clamp connected to the other end of the soft copper wire. Whether the clamp is properly engaged, whether the external insulation layer of the connected wire has been removed, and whether the connected wire is bare or insulated all require manual judgment, making it difficult to guarantee the effectiveness of the engagement and posing significant safety hazards. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model discloses a wiring clamp that can automatically detect whether the wiring clamp is properly engaged and the material of the engaged wire when the grounding wire is connected to the line, thus solving the problems in the existing technology.

[0004] This utility model is achieved through the following technical solution:

[0005] A wiring clamp includes a clamp body with a clamping mechanism. An insulating sleeve is retractably provided on the clamp body. A conductive trigger rod is threaded into the inner hole of the insulating sleeve, with the lower end of the trigger rod extending out of the insulating sleeve. The insulating sleeve has a non-triggering position extending out of the clamp body and a triggering position retracted into the clamp body. A first detection component for detecting whether the wiring is engaged and a second conductive detection component for detecting the material of the engaged wiring are provided along the extension and retraction path of the insulating sleeve. When the wiring is engaged, the insulating sleeve is subjected to external force to reach the triggering position, the lower end of the trigger rod contacts the engaged wiring, and the trigger rod conducts electricity in contact with the second detection component. The trigger rod triggers the first detection component. Both the first and second detection components are electrically connected to a control device.

[0006] Further optimized, the control device includes a control box connected to the lower end of the clamp, and a battery and a control board are provided inside the control box. The control board integrates a hook detection circuit, a conductor detection circuit, and an MCU. The input terminal of the hook detection circuit is electrically connected to a first detection component, and the input terminal of the conductor detection circuit is electrically connected to a second detection component. The output terminals of the hook detection circuit and the conductor detection circuit are respectively connected to two pins of the MCU.

[0007] Further optimized, a wiring groove is provided on one side surface of the clamp body, the lower end of the clamp body is hollow and connected to the control box, a wiring hole is provided in the wiring groove at the lower end of the clamp body and communicates with the hollow part at the lower end of the clamp body, a grounding screw hole is provided in the wiring groove near the wiring hole, a grounding screw screw is screwed into the grounding screw hole and electrically connected to the grounding terminal of the control board through a wire, and a protective cover plate is covered on the wiring groove.

[0008] Further optimized, a first connecting sleeve communicating with the hollow part at the lower end of the clamp body is provided at the lower end of the clamp body, and a second connecting sleeve communicating with the inside of the control box is provided at the upper end of the control box. The second connecting sleeve is sleeved outside the first connecting sleeve, and the second connecting sleeve is connected to the first connecting sleeve by a set screw.

[0009] In a further optimized manner, the first detection component includes a first conductive rod and a conductive sheet disposed on the upper end face of the insulating sleeve. The first conductive rod is disposed on an insulating mounting plate located above the insulating sleeve. When the insulating sleeve reaches the trigger position, the two first conductive rods and the conductive sheet come into contact and conduct electricity. The two first conductive rods are connected through the conductive sheet, and the two first conductive rods are electrically connected to the control device.

[0010] In a further optimized configuration, the second detection component includes a second conductive rod disposed on the mounting plate. When the insulating sleeve reaches the trigger position, the trigger rod contacts the second conductive rod to conduct electricity, and the second conductive rod is electrically connected to the control device.

[0011] In a further optimized configuration, a circuit board is provided above the mounting plate, and the first and second conductive rods are electrically connected to the circuit board. A 3-pin terminal is electrically connected to the circuit board, and the two first conductive rods and one second conductive rod are electrically connected to the control device through the 3-pin terminal.

[0012] In a further optimized design, a retaining cover is placed over the circuit board, which is connected to the clamp. Both the circuit board and the mounting plate are mounted on the retaining cover.

[0013] Further optimized, the insulating sleeve is a stepped sleeve, and the clamp is provided with a stepped hole that matches the outer diameter of the insulating sleeve. The insulating sleeve is slidably disposed in the stepped hole along the axis, and the lower end face of the large diameter portion of the insulating sleeve abuts against the inner end face of the large diameter of the stepped hole.

[0014] Further optimized, a return spring is provided between the insulating sleeve and the mounting plate. The lower end of the return spring abuts against the insulating sleeve, and the upper end of the return spring abuts against the mounting plate. An upper limit groove is provided at the part of the mounting plate that abuts against the return spring, and a lower limit groove is provided at the part of the insulating sleeve that abuts against the return spring.

[0015] The beneficial effects of this utility model are as follows: When the wire is properly attached, the insulating sleeve on the clamp is subjected to external force to reach the trigger position, the lower end of the trigger rod contacts the wire, the trigger rod contacts the second detection component to conduct electricity, the trigger rod triggers the first detection component, the control device receives the electrical signal, and automatically determines whether the attachment is in place and the material of the attached wire. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0020] In the diagram: 1. Clamp, 2. Insulating sleeve, 3. Trigger rod, 4. First conductive rod, 5. Conductive sheet, 6. Mounting plate, 7. Second conductive rod, 8. Circuit board, 9. 3P terminal block, 10. Reset spring, 11. Control box, 12. Battery, 13. Wiring trough, 14. Wiring hole, 15. Grounding screw hole, 16. Set screw, 17. Fixing cover. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0022] like Figure 1-3As shown, a wiring clamp includes a clamp body 1, a clamping mechanism on the clamp body 1, and an insulating sleeve 2 retractably mounted on the clamp body 1. A conductive trigger rod 3 is threaded into the inner hole of the insulating sleeve 2, with the lower end of the trigger rod 3 extending out of the insulating sleeve 2. The insulating sleeve 2 has a non-triggering position extending out of the clamp body 1 and a triggering position retracted into the clamp body 1. A first detection component for detecting whether the wiring is connected and a conductive second detection component for detecting the material of the connected wiring are provided along the extension and retraction path of the insulating sleeve 2. When the wiring is connected in place, the insulating sleeve 2 is subjected to external force to reach the triggering position, the lower end of the trigger rod 3 contacts the connected wiring, and the trigger rod 3 contacts the second detection component to conduct electricity. The trigger rod 3 triggers the first detection component, and both the first and second detection components are electrically connected to a control device.

[0023] The clamp 1 of the grounding wire is made of conductive metal (industry common sense). In use, the clamp 1 is connected to the grounding terminal of the control device via a wire. During the connection process, the insulating sleeve 2 is subjected to external force from the connection and gradually retracts into the clamp 1. When the insulating sleeve 2 reaches the trigger position, the trigger rod 3 triggers the first detection component. The control device determines whether the connection is properly connected based on the received electrical signal. The trigger rod 3 contacts the second detection component for conductivity. If the connection material is bare wire, the connection acts as a conductor, making the second detection component and the clamp 1 conductive. The control device receives a level change signal, determines the material of the connection, and indicates whether the connection is successful. This invention can be used with any type of grounding wire, such as a tongue-and-groove grounding wire or a flat-mouth spiral grounding wire. This invention uses a double-tongue grounding wire clamp as an example for explanation.

[0024] In some embodiments, the control device includes a control box 11 connected to the lower end of the clamp 1. A battery 12 and a control board are provided in the control box 11. The control board integrates a hook detection circuit, a conductor detection circuit, and an MCU. The input terminal of the hook detection circuit is electrically connected to a first detection component, and the input terminal of the conductor detection circuit is electrically connected to a second detection component. The output terminals of the hook detection circuit and the conductor detection circuit are respectively connected to two pins of the MCU.

[0025] This embodiment designs two detection circuits to convert the connection status into electrical signals. The MCU makes connection judgments based on the electrical signals received from the two pins. The control board also integrates a wireless communication module, such as a LoRa module, which can transmit the acquired connection judgment results to other electronic devices for display.

[0026] In some embodiments, a wiring groove 13 is provided on one side surface of the clamp body 1, the lower end of the clamp body 1 is hollow and connected to the control box 11, a wiring hole 14 communicating with the hollow part of the lower end of the clamp body 1 is provided in the wiring groove 13 at the lower end of the clamp body 1, a grounding screw hole 15 is provided in the wiring groove 13 near the wiring hole 14, a grounding screw screw screwed into the grounding screw hole 15 is electrically connected to the grounding terminal of the control board through a wire, and a protective cover plate 16 is covered on the wiring groove 13.

[0027] This embodiment makes wiring safer, more aesthetically pleasing and more convenient by reasonably setting the wiring groove 13, wiring hole 14 and the connection structure between clamp 1 and control box 11.

[0028] In some embodiments, a first connecting sleeve communicating with the hollow portion of the lower end of the clamp 1 is provided at the lower end of the clamp 1, and a second connecting sleeve communicating with the interior of the control box 11 is provided at the upper end of the control box 11. The second connecting sleeve is sleeved outside the first connecting sleeve, and the second connecting sleeve is connected to the first connecting sleeve by a set screw 16.

[0029] This embodiment uses the connection structure between the clamp 1 and the control box 11 described above, which makes disassembly and assembly very convenient.

[0030] In some embodiments, the first detection component includes a first conductive rod 4 and a conductive sheet 5 disposed on the upper end face of the insulating sleeve 2. The first conductive rod 4 is disposed on an insulating mounting plate 6 located above the insulating sleeve 2. When the insulating sleeve 2 reaches the trigger position, the two first conductive rods 4 and the conductive sheet 5 come into contact and conduct electricity, and the two first conductive rods 4 are connected through the conductive sheet 5. The two first conductive rods 4 are electrically connected to the control device. One of the two first conductive rods 4 is electrically connected to the input terminal of the detection circuit, and the other is electrically connected to the ground terminal of the control board.

[0031] In some embodiments, the second detection component includes a second conductive rod 7 disposed on the mounting plate 6. When the insulating sleeve 2 reaches the trigger position, the trigger rod 3 contacts the second conductive rod 7 for conductivity, and the second conductive rod 7 is electrically connected to the control device. Specifically, the second conductive rod 7 is electrically connected to the input terminal of the conductor detection circuit. The clamp 1 is grounded by a grounding screw screwed into the grounding screw hole 15. When a bare wire is attached and is properly attached, the second conductive rod 7 is grounded through the trigger rod 3 and the bare wire. The conductor detection circuit outputs a low-level signal to the MCU, and the MCU detects and determines the material of the attached wire.

[0032] In some embodiments, a circuit board 8 is provided above the mounting plate 6. The first conductive rod 4 and the second conductive rod 7 are electrically connected to the circuit board 8. A 3P terminal 9 is electrically connected to the circuit board 8. The two first conductive rods 4 and the second conductive rod 7 are electrically connected to the control device through the 3P terminal 9. The first conductive rods 4 and the second conductive rod 7 adopt a telescopic structure, such as a spring pin.

[0033] In some embodiments, a fixing cover 17 is provided above the circuit board 8. The fixing cover 17 is connected to the clamp 1, and both the circuit board 8 and the mounting plate 6 are mounted on the fixing cover 17.

[0034] In some embodiments, the insulating sleeve 2 is a stepped sleeve, and the clamping body 1 is provided with a stepped hole that matches the outer diameter of the insulating sleeve 2. The insulating sleeve 2 is slidably disposed in the stepped hole along the axis, and the lower end face of the large diameter portion of the insulating sleeve 2 abuts against the inner end face of the large diameter of the stepped hole.

[0035] In some embodiments, a return spring 10 is provided between the insulating sleeve 2 and the mounting plate 6. The lower end of the return spring 10 abuts against the insulating sleeve 2, and the upper end of the return spring 10 abuts against the mounting plate 6. An upper limit groove is provided at the part where the mounting plate 6 abuts against the return spring 10, and a lower limit groove is provided at the part where the insulating sleeve 2 abuts against the return spring 10.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0037] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A wiring clamp, comprising a clamp body, wherein a clamping mechanism is provided on the clamp body, characterized in that: An insulating sleeve is retractably provided on the clamp body. A conductive trigger rod is threaded into the inner hole of the insulating sleeve. The lower end of the trigger rod extends out of the insulating sleeve. The insulating sleeve has a non-trigger position extending out of the clamp body and a trigger position retracted into the clamp body. A first detection component for detecting whether the wire is hooked and a second conductive detection component for detecting the material of the hooked wire are provided along the extension and retraction path of the insulating sleeve. When the hooked wire is hooked in place, the insulating sleeve is subjected to external force to reach the trigger position. The lower end of the trigger rod contacts the hooked wire, and the trigger rod contacts the second detection component to conduct electricity. The trigger rod triggers the first detection component. Both the first and second detection components are electrically connected to the control device. The insulating sleeve is a stepped sleeve. The clamp body has a stepped hole that matches the outer diameter of the insulating sleeve. The insulating sleeve is slidably disposed in the stepped hole along the axis. The lower end face of the larger diameter portion of the insulating sleeve abuts against the inner end face of the larger diameter of the stepped hole.

2. A connector according to claim 1, characterized in that: The control device includes a control box connected to the lower end of the clamp. The control box contains a battery and a control board. The control board integrates a hook detection circuit, a conductor detection circuit, and an MCU. The input terminal of the hook detection circuit is electrically connected to a first detection component, and the input terminal of the conductor detection circuit is electrically connected to a second detection component. The output terminals of the hook detection circuit and the conductor detection circuit are respectively connected to two pins of the MCU.

3. A wiring clamp according to claim 2, characterized in that: A wiring groove is provided on one side surface of the clamp body. The lower end of the clamp body is hollow and connected to the control box. A wiring hole is provided in the wiring groove at the lower end of the clamp body, which is connected to the hollow part at the lower end of the clamp body. A grounding screw hole is provided in the wiring groove near the wiring hole. A grounding screw screw is screwed into the grounding screw hole and electrically connected to the grounding terminal of the control board through a wire. A protective cover plate is provided on top of the wiring groove.

4. A wiring clamp according to claim 3, characterized in that: A first connecting sleeve communicating with the hollow part of the lower end of the clamp is provided at the lower end of the clamp body, and a second connecting sleeve communicating with the inside of the control box is provided at the upper end of the control box. The second connecting sleeve is sleeved outside the first connecting sleeve, and the second connecting sleeve is connected to the first connecting sleeve by a set screw.

5. A connector according to claim 1, characterized in that: The first detection component includes a first conductive rod and a conductive sheet disposed on the upper end face of the insulating sleeve. The first conductive rod is disposed on an insulating mounting plate located above the insulating sleeve. When the insulating sleeve reaches the trigger position, the two first conductive rods and the conductive sheet come into contact and conduct electricity. The two first conductive rods are connected through the conductive sheet, and the two first conductive rods are electrically connected to the control device.

6. A wiring clamp according to claim 5, characterized in that: The second detection component includes a second conductive rod disposed on the mounting plate. When the insulating sleeve reaches the trigger position, the trigger rod contacts the second conductive rod to conduct electricity, and the second conductive rod is electrically connected to the control device.

7. A connector according to claim 6, characterized in that: A circuit board is provided above the mounting plate. The first and second conductive rods are electrically connected to the circuit board. A 3-pin terminal is electrically connected to the circuit board. The two first conductive rods and one second conductive rod are electrically connected to the control device through the 3-pin terminal.

8. A connector according to claim 7, characterized in that: A retaining cover is placed over the circuit board, and the retaining cover is connected to the clamp. Both the circuit board and the mounting plate are mounted on the retaining cover.

9. A wiring clamp according to claim 1, characterized in that: A return spring is provided between the insulating sleeve and the mounting plate. The lower end of the return spring abuts against the insulating sleeve, and the upper end of the return spring abuts against the mounting plate. An upper limit groove is provided at the part of the mounting plate that abuts against the return spring, and a lower limit groove is provided at the part of the insulating sleeve that abuts against the return spring.

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