Wiring device

Abstract

The invention relates to the field of electrical measurement, and discloses a wiring device which comprises an installation main body used for being connected with a shell of an instrument, an extension plate installed on the outer side of the installation main body and used for unlocking the installation main body, and a hoop installed on the outer side of the installation main body and the outer side of the extension plate and used for locking the installation main body. The hoop is used for locking the mounting main body, the protective component is mounted on the outer side of the mounting main body, the connecting wire is mounted in the mounting main body and the protective component, and the protective component is used for limiting the mounting main body to be mounted before the connecting wire; through the mutual cooperation of the installation main body, the extension plate and the hoop, the installation main body can be stably installed in the groove of the electric energy meter shell, and through the arrangement of the protection part, the dismounting sequence that the connection line can be installed after the installation of the installation main body is completed, and the dismounting sequence that the installation main body can be dismounted after the connection line is dismounted can be forcibly limited. Therefore, the short circuit risk can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of electrical measurement, and in particular to a wiring device. Background Technology

[0002] In the wiring process of electrical measurements, alligator clips (also known as spring clips or test clips) are widely used due to their large opening and strong clamping force. However, when applied to energy meters with compact structures and densely packed terminals, they have many drawbacks: First, electricity meter terminals come in various sizes, while alligator clips only come in a few universal sizes, making it difficult to accommodate different terminals ranging from micro to large. For incompatible terminals, alligator clips cannot provide effective clamping and are prone to loosening and falling off under the pull of the test leads, resulting in signal interruption and inaccurate data. Repeated reconnection is required, which seriously affects the verification efficiency and the reliability of the results.

[0003] Secondly, the terminals of electricity meters are densely arranged, especially in three-phase electricity meters. Traditional alligator clips are bulky, and their insulating shells usually only cover the handle, failing to effectively isolate the metal spring arms. The metal spring arms are completely exposed. When operating in a narrow space, the exposed metal of adjacent alligator clips is very likely to touch each other due to operation or the weight of the wires, instantly causing phase-to-phase or phase-to-ground short circuits, generating electric arcs, which seriously threaten the safety of equipment and personnel.

[0004] Finally, within the confined space of the electricity meter box, its large size and rigid wiring make wiring cumbersome. Operators need to spend a lot of effort carefully finding the clamping position and avoiding touching it, which greatly increases the difficulty and intensity of the work and reduces the efficiency of operation. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is that traditional alligator clips are difficult to adapt to the wiring requirements of electricity meters.

[0006] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a wiring device, which includes, Mounting body, which is used to connect to the housing of the instrument; An extension plate is installed on the outside of the mounting body, and the extension plate is used to unlock the mounting body; A clamp is installed on the outside of the mounting body and the extension plate, and the clamp is used to lock the mounting body; Protective components are installed on the outside of the mounting body; A connecting wire, installed inside the mounting body and protective components, is used to electrically connect the measured element to the instrument; The protective component is used to limit the installation of the mounting body to be installed before the connecting line.

[0007] In a preferred embodiment of the wiring device of the present invention: the mounting body includes a sleeve, a first clamping plate and a second clamping plate hinged to the outside of the sleeve, and a first thread formed inside the sleeve.

[0008] In a preferred embodiment of the wiring device of the present invention: the extension plate includes an extension plate body disposed on the outside of the second clamping plate, a locking block fixedly connected to the outside of the extension plate body, a buckle hinged to the outside of the second clamping plate, and a slot formed inside the buckle.

[0009] In a preferred embodiment of the wiring device of the present invention: the clamp includes a first clamp hinged to the outside of the extension plate body, a first tooth fixedly connected to the outside of the first clamp, a second clamp hinged to the outside of the first clamp, an arc groove formed inside the second clamp, and a second tooth fixedly connected inside the arc groove. The first clamp is elastic.

[0010] In a preferred embodiment of the wiring device of the present invention: the protective component includes a first hinge piece hinged to the outside of the first clamping plate, a second hinge piece hinged to the outside of the second clamping plate, a first slider hinged to the outside of the first hinge piece, a second slider hinged to the outside of the second hinge piece, and a protective joint disposed on the outside of the first slider and the second slider. The first slider and the second slider are slidably connected inside the sleeve.

[0011] In a preferred embodiment of the wiring device of the present invention: the protective connector includes a first connector fixedly connected to the outside of the first slider, a second connector fixedly connected to the outside of the second slider, and a second thread formed inside the first connector and the second connector.

[0012] In a preferred embodiment of the wiring device of the present invention: the connecting wire includes a threaded probe, an insulating shell mounted on the outside of the threaded probe, a wire electrically connected to the threaded probe, an insulating connection port mounted on the outside of the wire, and a sliding cover slidably connected to the outside of the insulating shell; The threaded probe is made of conductive material, and the insulating shell, the insulating connection port, and the sliding cover are made of insulating material. The first thread and the second thread are configured to engage with the same threaded probe.

[0013] In a preferred embodiment of the wiring device of the present invention: the first clamp and the second clamp are elastic.

[0014] The beneficial effects of this invention are as follows: through the cooperation of the mounting body, the extension plate and the clamp, the mounting body can be stably installed in the groove of the electricity meter housing. By setting protective components, the installation and disassembly sequence can be forcibly restricted to the complete installation of the mounting body before the connection wire can be installed, and the connection wire can be disassembled before the mounting body can be disassembled, thereby effectively reducing the risk of short circuit. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0016] Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic diagram of the extension plate of the present invention is shown; Figure 3 A schematic diagram of the clamp of the present invention is shown; Figure 4 A cross-sectional view of the overall structure of the present invention is shown; Figure 5 A top view schematic diagram of the protective component of the present invention is shown; Figure 6 A schematic diagram of the connecting lines of the present invention is shown; Figure 7 This illustrates the electrical energy representation concept of the present invention; Figure 8 A schematic diagram of the protective component of the present invention with the addition of a synchronization plate is shown. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new techniques. Furthermore, specific terms may be chosen independently, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of the invention.

[0019] Reference Figures 1-7 This embodiment provides a wiring device, including, Mounting body 1, which is used to connect to the housing of the instrument; Extension plate 2 is installed on the outside of mounting body 1. Extension plate 2 is used to unlock mounting body 1. Clamp 3 is installed on the outside of the mounting body 1 and the extension plate 2. Clamp 3 is used to lock the mounting body 1. Protective component 4 is installed on the outside of the mounting body 1; The connecting wire 5 is installed inside the mounting body 1 and the protective component 4. The connecting wire 5 is used to electrically connect the measured element to the instrument. The protective component 4 is used to limit the installation of the main body 1 before the connecting line 5.

[0020] It is worth noting that the main installation body 1, extension plate 2, clamp 3, and protective component 4 are all made of insulating materials; The instrument used in this embodiment is an electricity meter; As attached Figure 7 As shown, the electricity meter includes a housing, a groove inside the housing, a side wall inside the groove, and a connecting piece and a terminal installed inside the groove. The connecting piece and the terminal are made of conductive material.

[0021] When in use, the staff needs to connect the extension plate 2 to the installation body 1 first, and use the clamp 3 to install the installation body 1 in the groove opened inside the electricity meter housing, specifically by expanding the installation body 1 outward to support it against the side wall of the groove.

[0022] During the expansion of the main body 1, the protective component 4 will move along with the expansion of the main body 1 until the main body 1 is supported by the side wall of the groove and locked. At this time, the protective component 4 will no longer move. Only then can the staff connect the connecting wire 5 to the protective component 4 and the main body 1 in sequence until it comes into contact with the terminal block to complete the electrical connection between the connecting wire 5 and the electricity meter.

[0023] As one embodiment provided in this application, such as Figure 1 , Figure 2 and Figure 4 The mounting body 1 includes a sleeve 11, a first clamping plate 12 and a second clamping plate 13 hinged to the outside of the sleeve 11, and a first thread 14 formed inside the sleeve 11. It is worth noting that rubber pads can be installed at the bottom of the first clamping plate 12 and the second clamping plate 13.

[0024] During installation, the workers first place the first clamping plate 12 and the second clamping plate 13 inside the groove of the electricity meter housing. Since the first clamping plate 12 and the second clamping plate 13 are hinged to the sleeve 11, when the top of the first clamping plate 12 and the top of the second clamping plate 13 approach each other, the bottom of the first clamping plate 12 and the bottom of the second clamping plate 13 can expand outward to both sides to support the side wall of the groove. When the top of the first clamping plate 12 and the top of the second clamping plate 13 approach each other, the clamp 3 will lock.

[0025] As one embodiment provided in this application, such as Figures 1-4 The extension plate 2 includes an extension plate body 21 disposed on the outside of the second clamping plate 13, a locking block 22 fixedly connected to the outside of the extension plate body 21, a buckle 23 hinged to the outside of the second clamping plate 13, and a slot 24 opened inside the buckle 23. The buckle 23 can engage with the second clamping plate 13.

[0026] During installation, as shown in the attached document. Figure 2 As shown, the worker attaches the extension plate body 21 to the outside of the second clamping plate 13, and then snaps the buckle 23 into the second clamping plate 13. During this process, the position of the extension plate body 21 needs to be adjusted so that the clip 22 can be accurately snapped into the slot 24. When the buckle 23 is snapped into the second clamping plate 13, the second clamping plate 13 and the extension plate body 21 are installed.

[0027] It is worth noting that the buckle 23 and the second clamping plate 13 need to be firmly locked together to ensure the stability of the installation of the second clamping plate 13 and the extension plate body 21. To achieve a firm connection between the buckle 23 and the second clamping plate 13, the friction can be increased by knurling, spraying rough particles, or setting anti-slip serrations on the locking surface, or by opening slots on the sides of the buckle 23 and the second clamping plate 13 and inserting pins into the slots to achieve the purpose of firmly locking the buckle 23 and the second clamping plate 13 together.

[0028] As one embodiment provided in this application, such as Figures 1-4 The clamp 3 includes a first clamp 31 hinged to the outside of the extension plate body 21, a first tooth 32 fixedly connected to the outside of the first clamp 31, a second clamp 33 hinged to the outside of the first clamp plate 12, an arc groove 34 opened inside the second clamp 33, and a second tooth 35 fixedly connected inside the arc groove 34. The first clamp 31 is elastic, and the first tooth 32 and the second tooth 35 can mesh with each other; As attached Figure 3 As shown, the arc groove 34 penetrates the top surface of the second clamp 33.

[0029] After the extension plate 2 is installed, the workers place the bottom of the first clamp 12 and the bottom of the second clamp 13 into the groove of the electricity meter housing, and bring the first clamp 31 and the second clamp 33 closer to each other in sync, so that the first clamp 31 can be inserted into the arc groove 34 of the second clamp 33. During the insertion process, since the first clamp 31 is elastic, the first tooth 32 and the second tooth 35 can be meshed with each other through the elastic deformation of the first clamp 31.

[0030] During the process of inserting the first clamp 31 into the arc groove 34, the hinges between the first clamp 12 and the second clamp 33 and the sleeve 11, the connection between the second clamp 13 and the extension plate body 21, the hinge between the extension plate body 21 and the first clamp 31, and the hinge between the second clamp 13 and the sleeve 11 can be used to expand the bottom of the first clamp 12 and the bottom of the second clamp 13 outwards, thereby supporting the groove sidewall of the electricity meter housing, realizing the connection between the installation body 1 and the electricity meter housing, and locking the first clamp 12 and the second clamp 13 through the mutual cooperation of the first tooth 32 and the second tooth 35.

[0031] As attached Figure 4 As shown, when it is necessary to disassemble the main body 1, the worker can release the buckle 23 from the second clamping plate 13 to separate the extension plate body 21 from the second clamping plate 13, thereby releasing the clamp 3 from the main body 1. Since the arc groove 34 penetrates the top surface of the second clamping plate 33, the first clamping plate 31 can be pulled upward to separate the first clamping plate 31 from the second clamping plate 33.

[0032] As one embodiment provided in this application, such as Figures 1-8 The protective component 4 includes a first hinge piece 41 hinged to the outside of the first clamping plate 12, a second hinge piece 42 hinged to the outside of the second clamping plate 13, a first slider 43 hinged to the outside of the first hinge piece 41, a second slider 44 hinged to the outside of the second hinge piece 42, and a protective joint 45 disposed on the outside of the first slider 43 and the second slider 44. The first slider 43 and the second slider 44 are slidably connected inside the sleeve 11.

[0033] The protective connector 45 includes a first connector 451 fixedly connected to the outside of the first slider 43, a second connector 452 fixedly connected to the outside of the second slider 44, and a second thread 453 formed inside the first connector 451 and the second connector 452.

[0034] The connecting wire 5 includes a threaded probe 51, and a first thread 14 and a second thread 453 are configured to engage with the same threaded probe 51. Specifically, in order to enable the first thread 14 and the second thread 453 to engage with the same thread probe 51, the first thread 14 and the second thread 453 can be configured to have the same nominal diameter, pitch, tooth profile, tooth angle, and direction of rotation.

[0035] As attached Figure 4As shown, during the process of inserting the first clamp 31 into the arc groove 34, since the first hinge piece 41 is hinged to the first clamping plate 12 and the first slider 43, the second hinge piece 42 is hinged to the second clamping plate 13 and the second slider 44, and the first slider 43 and the second slider 44 are slidably connected to the sleeve 11, when the top of the first clamping plate 12 and the top of the second clamping plate 13 approach each other, the first slider 43 and the second slider 44 will move downward inside the sleeve 11, thereby driving the first connector 451 and the second connector 452 to move downward until the bottom of the first clamping plate 12 and the bottom of the second clamping plate 13 expand outward to support the groove of the energy meter housing, the first clamping plate 12 and the second clamping plate 13 can no longer expand outward and are locked by the clamp 3. At this time, the first connector 451 and the second connector 452 also cannot continue to move and are locked.

[0036] At this point, the main installation body 1 has been installed and the protective component 4 has been moved into place. The staff can then screw the threaded probe 51 into the second thread 453 and the first thread 14 in sequence. As the threaded probe 51 descends during the screwing process, it will gradually come into contact with the terminal block of the electricity meter, thereby completing the electrical connection.

[0037] It is worth noting that, due to the installation of protective component 4, the installation of the main body 1 can be mandated to be carried out first, followed by the installation of the connecting wire 5.

[0038] Specifically, if the operator attempts to first screw the threaded probe 51 into the second thread 453 and the first thread 14, and then connect the mounting body 1 to the groove of the electricity meter housing, it will be found that after the threaded probe 51 is screwed into the second thread 453 and the first thread 14, the first clamping plate 12 and the second clamping plate 13 will be locked by the mutual cooperation of the threaded probe 51 with the second thread 453 and the first thread 14, thus preventing outward expansion or inward contraction. Furthermore, since the first connector 451 and the second connector 452 can satisfy the screwing of the threaded probe 51 into the second thread 453 and the first thread 14 in multiple positions, the outward expansion angle when the first clamping plate 12 and the second clamping plate 13 are locked can also have multiple possibilities.

[0039] When the first clamping plate 12 and the second clamping plate 13 are locked and there are multiple possible outward expansion angles, if the staff wants to directly insert the first clamping plate 12 and the second clamping plate 13 into the groove, it is almost impossible for the outward expansion of the first clamping plate 12 and the second clamping plate 13 to fit exactly against the side wall of the groove. That is, the first clamping plate 12 and the second clamping plate 13 will most likely not be able to be inserted into the groove or will not fit tightly against the side wall of the groove after being inserted into the groove. When the mounting body 1 cannot be installed in the groove of the electricity meter housing, the connecting wire 5 cannot complete the electrical connection. In this case, the staff will no longer attempt to first screw the threaded probe 51 with the second thread 453 and the first thread 14, and then connect the mounting body 1 to the groove of the electricity meter housing. Or, if the staff accidentally confuses the disassembly and assembly sequence, they can also promptly discover the problem when the first clamping plate 12 and the second clamping plate 13 cannot be installed correctly.

[0040] The requirement to install the main body 1 before installing the connecting wire 5 is due to the following reason: If the threaded probe 51 is screwed into the second thread 453 and the first thread 14 first, the threaded probe 51, when electrically connected to the energy meter, is prone to misalignment due to hand tremors or limited visibility, potentially causing it to land on the wrong terminal. This could result in severe phase-to-phase or ground short circuits, generating huge short-circuit currents and arcs, endangering equipment and personnel safety. By installing the main body 1 first, the final landing point of the threaded probe 51 is determined by the main body 1. Ensuring a safe final landing point before connecting the threaded probe 51 prevents short circuits.

[0041] Similarly, during disassembly, the staff must first remove the threaded probe 51 before the first clamp 12 and the second clamp 13 can be unlocked. If the mounting body 1 can be removed without removing the threaded probe 51, the mounting body 1 carrying the threaded probe 51 may shake or have its vision obstructed during the disassembly process, which may cause the threaded probe 51 to accidentally touch other wiring, thus causing a short circuit risk.

[0042] In addition, to ensure that the thread probe 51 can engage with the first thread 14, it is necessary to ensure that the first connector 451 and the second connector 452 move synchronously. Therefore, when the operator inserts the first clamp 31 into the second clamp 33, it is necessary to ensure that the first clamp 31 and the second clamp 33 move the same distance.

[0043] Furthermore, if it is difficult to ensure that the first clamp 31 and the second clamp 33 move the same distance, the following measures can be taken: Figure 8The solution is to fix the first slider 43 and the second slider 44 into a whole by fixing them together with a synchronization plate. In this case, it can be ensured that the first connector 451 and the second connector 452 can be raised and lowered synchronously.

[0044] As one embodiment provided in this application, such as Figures 1-7 The connecting wire 5 also includes an insulating shell 52 installed on the outside of the threaded probe 51, a wire 53 electrically connected to the threaded probe 51, an insulating connection port 54 installed on the outside of the wire 53, and a sliding cover 55 slidably connected to the outside of the insulating shell 52. The threaded probe 51 is made of conductive material, while the insulating shell 52, the insulating connection port 54, and the sliding cover 55 are made of insulating material. The sliding cover 55 covers the outside of the threaded probe 51.

[0045] When the threaded probe 51 is engaged with the second thread 453 and begins to engage with the first thread 14, the sliding cover 55 will be blocked by the first connector 451 and the second connector 452 and will not be able to descend. When the threaded probe 51 continues to engage with the first thread 14, the sliding cover 55 will slide outside the insulating shell 52 and always cover the outside of the threaded probe 51 until the bottom of the threaded probe 51 contacts the terminal block and completes the electrical connection.

[0046] By setting the sliding cover 55, if after the threaded probe 51 contacts the connector, if some threads are still exposed outside and fail to engage with the second thread 453, the sliding cover 55 can cover the outside of the exposed part, thereby preventing the exposed part of the threaded probe 51 from being accidentally touched or interfered with by other connectors.

[0047] In summary, through the cooperation of the mounting body 1, the extension plate 2, and the clamp 3, the mounting body 1 can be stably installed in the groove of the electricity meter housing. By setting the protective component 4, the installation and disassembly sequence can be forcibly restricted to the complete installation of the mounting body 1 before the installation of the connecting wire 5, and the disassembly and disassembly sequence of the mounting body 1 before the disassembly of the connecting wire 5, thereby effectively reducing the risk of short circuit.

[0048] As one embodiment provided in this application, such as Figures 1-6 The first clamping plate 12 and the second clamping plate 13 are elastic.

[0049] It is worth noting that since the groove dimensions of the electricity meter housing are not exactly the same, the degree of outward expansion of the bottom of the first clamping plate 12 and the bottom of the second clamping plate 13 is different for different grooves. That is, the distance that the first slider 43 and the second slider 44 descend is different. Therefore, there is a situation where the distance that the first slider 43 and the second slider 44 descend makes it impossible for the thread probe 51 to be screwed into the first thread 14 when it is screwed into the second thread 453 and abuts against the entrance of the first thread 14.

[0050] In response to the above situation, the operator can rotate the threaded probe 51 in the reverse direction one turn, and then press the threaded probe 51 down forcefully until the bottom of the threaded probe 51 hits the inlet of the second thread 453. While keeping the threaded probe 51 against the inlet of the second thread 453, rotate the threaded probe 51 in the forward direction. At this time, the first connector 451 and the second connector 452 will move slightly upward under the action of the second thread 453, and the threaded probe 51 can be screwed into the first thread 14 normally.

[0051] When the threaded probe 51 is pressed down, the hinge point of the first clamping plate 12 and the first hinge piece 41 will be slightly close to the hinge point of the second clamping plate 13 and the second hinge piece 42 due to the cooperation of the protective component 4. Since the groove size is fixed, the bottom of the first clamping plate 12 and the bottom of the second clamping plate 13 cannot expand outward, so the first clamping plate 12 and the second clamping plate 13 need to have a certain elasticity.

[0052] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A wiring device, characterized in that: include, Mounting body (1), which is used to connect to the housing of the instrument; An extension plate (2) is installed on the outside of the mounting body (1), and the extension plate (2) is used to unlock the mounting body (1). A clamp (3) is installed on the outside of the mounting body (1) and the extension plate (2), and the clamp (3) is used to lock the mounting body (1). Protective component (4) is installed on the outside of the mounting body (1); A connecting wire (5) is installed inside the mounting body (1) and the protective component (4). The connecting wire (5) is used to electrically connect the measured element to the instrument. The protective component (4) is used to limit the installation body (1) to be installed before the connecting line (5).

2. The wiring device according to claim 1, characterized in that: The mounting body (1) includes a sleeve (11), a first clamping plate (12) and a second clamping plate (13) hinged to the outside of the sleeve (11), and a first thread (14) formed inside the sleeve (11).

3. The wiring device according to claim 2, characterized in that: The extension plate (2) includes an extension plate body (21) disposed on the outside of the second clamping plate (13), a locking block (22) fixedly connected to the outside of the extension plate body (21), a buckle (23) hinged to the outside of the second clamping plate (13), and a slot (24) formed inside the buckle (23).

4. The wiring device according to claim 3, characterized in that: The clamp (3) includes a first clamp (31) hinged to the outside of the extension plate body (21), a first tooth (32) fixedly connected to the outside of the first clamp (31), a second clamp (33) hinged to the outside of the first clamp plate (12), an arc groove (34) opened inside the second clamp (33), and a second tooth (35) fixedly connected inside the arc groove (34). The first clamp (31) is elastic.

5. The wiring device according to claim 4, characterized in that: The protective component (4) includes a first hinge piece (41) hinged to the outside of the first clamping plate (12), a second hinge piece (42) hinged to the outside of the second clamping plate (13), a first slider (43) hinged to the outside of the first hinge piece (41), a second slider (44) hinged to the outside of the second hinge piece (42), and a protective joint (45) disposed on the outside of the first slider (43) and the second slider (44). The first slider (43) and the second slider (44) are slidably connected inside the sleeve (11).

6. The wiring device according to claim 5, characterized in that: The protective connector (45) includes a first connector (451) fixedly connected to the outside of the first slider (43), a second connector (452) fixedly connected to the outside of the second slider (44), and a second thread (453) formed inside the first connector (451) and the second connector (452).

7. The wiring device according to claim 6, characterized in that: The connecting wire (5) includes a threaded probe (51), an insulating shell (52) installed on the outside of the threaded probe (51), a wire (53) electrically connected to the threaded probe (51), an insulating connection port (54) installed on the outside of the wire (53), and a sliding cover (55) slidably connected to the outside of the insulating shell (52). The threaded probe (51) is made of conductive material, and the insulating shell (52), the insulating connection port (54) and the sliding cover (55) are made of insulating material; The first thread (14) and the second thread (453) are configured to engage with the same thread probe (51).

8. The wiring device according to any one of claims 2 to 7, characterized in that: The first clamping plate (12) and the second clamping plate (13) are elastic.

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