Intelligent terminal access device

Abstract

The invention discloses an intelligent terminal access device which comprises a base, a row of terminal plug bushes and two rows of meter plug bushes are arranged on the base, the intelligent terminal access device further comprises terminal plugs and meter plugs, the meter plug bushes and the terminal plug bushes are connected with connector lugs corresponding to the meter plug bushes in position through conductive connecting pieces respectively to form a plurality of sets of current and voltage loops and a set of grounding loops, two adjacent plug bushes in the terminal plug-in columns in the current outflow loop are respectively provided with a short circuit piece, the terminal plug is provided with an insulating plate for disconnecting the two short circuit pieces, and two groups of integrated interlocking assemblies are arranged between the two rows of meter plug-in columns; when the terminal plug bush is short-circuited, the short-circuiting piece is adopted for short-circuiting, and the protruding conductive connector is arranged on the short-circuiting piece, so that the two short-circuiting pieces are directly prevented from being separated due to deformation, and the safety performance is better; meanwhile, the first clamping block and the second clamping block are connected through the torsion spring arm, an integrated interlocking structure is formed, the meter plug is prevented from being pulled out by mistake, and the use safety is improved.

Description

Technical Field

[0001] The invention belongs to the field of electrical equipment, and in particular relates to an intelligent terminal access device for metering. Background Art

[0002] In the power grid system, a secondary circuit with current and voltage transformers is usually used to indirectly meter or measure the current, voltage, power, phase, frequency and other parameters in the main circuit. In the energized state, the current loop of the secondary circuit cannot be open, otherwise the secondary coil of the current transformer will generate high voltage, which may damage the insulation of the secondary winding and the terminal, and will seriously endanger personal safety. In this case, how to lead out the current and voltage in the secondary circuit without disconnecting the secondary circuit to connect to the smart terminal for electrical parameter measurement is a difficult problem. Publication No. CN216145778U discloses an intelligent terminal access device, which short-circuits at least part of the sockets in the terminal plug-in column through a short-circuit spring when accessing the intelligent terminal. An insulating partition is provided on the plug core of the terminal plug. When the terminal plug is connected to the socket in the terminal plug-in column, the insulating partition is separated from the short-circuit spring, so that the secondary circuit is connected to the intelligent terminal for detection. When the terminal plug is pulled out, the short-circuit spring can automatically short-circuit the two sockets in the current outflow circuit, so as to keep the entire current circuit unbroken; while in this technical solution, only the spring is used to short-circuit The two spring pieces are easily deformed and broken after use, so when the terminal plug is unplugged, the secondary circuit is opened. Publication No. CN113687120A discloses a lossless meter replacement device and a meter replacement method, which prevents the two meter plugs from being unplugged at the same time by setting an interlocking mechanism, thereby causing the secondary circuit to be opened. In the above technical solution, a limit groove is provided on the base, and a first clip and a second clip are provided in the limit groove. The first clip and the second clip realize reverse movement through a spring at the bottom. This structure is relatively complex, and has the defects of high assembly difficulty and easy failure. Summary of the invention

[0003] In view of the problems mentioned in the background technology, an object of the present invention is to provide an intelligent terminal access device to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A smart terminal access device comprises a base, on which a row of terminal sockets and two rows of meter sockets are arranged, and also comprises a terminal plug electrically connected to the terminal sockets, and a meter plug electrically connected to the two rows of meter sockets respectively, and a wiring part is arranged on the side of the base, and the wiring part comprises a plurality of wiring heads, wherein the meter sockets and the terminal sockets are respectively connected to the wiring heads corresponding to the positions through conductive connectors to form a plurality of current and voltage loops and a group of grounding loops, wherein a short-circuit is respectively arranged on two adjacent sockets in the terminal plug-in column in the current outflow loop, and in the initial state (referring to the state in which the access device and the terminal plug are separated), the two short-circuit components realize short-circuiting of the two circuits; correspondingly, an insulating plate for disconnecting the two short-circuit components is arranged on the terminal plug, and after the terminal plug is electrically connected to the terminal socket by docking, the insulating plate is placed between the two short-circuit components, so that the short-circuit point of the secondary circuit is disconnected and connected to the terminal plug; two sets of integrated interlocking components are arranged between the two rows of meter plug-in columns.

[0006] Preferably, the integrated interlocking component includes a torsion spring arm arranged on the base, and a first clamping block and a second clamping block are arranged on both ends of the torsion spring arm. One end of the first clamping block is provided with an inclined push surface inclined downward, and one end of the second clamping block extends to form a hook portion. When installed, the inclined push surface and the hook portion are arranged opposite to each other, respectively corresponding to the meter plugs on both sides, a push block is arranged on the meter plug shell on the side corresponding to the inclined push surface, and a card slot is arranged on the meter plug shell on the side corresponding to the hook portion. The first clamping block and the second clamping block in the two sets of integrated interlocking components correspond to different meter plugs.

[0007] When both meter plugs are inserted into the meter socket, the first card block is pushed by the push block on the meter plug, so that the connected second card block is away from the corresponding meter plug. At this time, one of the two meter plugs can be pulled out at will. When one of the meter plugs is pulled out, the hook portion of the second card block in the integrated interlocking assembly connected to it by an inclined push surface moves toward the other meter plug and is inserted into the card slot to lock the meter plug.

[0008] Preferably, two rotating shafts are integrally formed on the base, and the two rotating shafts are arranged between the two meter plugs. The two rotating shafts are connected to a rotating arm one by one, and a torsion spring is arranged between the rotating arm and the rotating shaft to form the torsion spring arm.

[0009] Preferably, the rotating arm comprises a central sleeve shaft, which extends along both sides of the central sleeve shaft to form a rotating arm body, the central sleeve shaft is sleeved on the rotating shaft, the torsion spring is sleeved on the rotating shaft, and two torsion spring arms respectively abut against the two rotating arm bodies.

[0010] Preferably, the first clamping block includes a first clamping block body, one side of the first clamping block body extends to form the inclined push surface, the first clamping block body is provided with a first connecting hole, the second clamping block includes a second clamping block body, one side of the second clamping block body forms the pointed hook portion, the second clamping block body is provided with a second connecting hole, the first clamping block and the second clamping block are respectively connected to the end of the rotating arm body through the first connecting hole and the second connecting hole.

[0011] Preferably, through holes are provided on the two rotating arm bodies, and the torsion spring arms of the torsion springs are clamped in the through holes.

[0012] Preferably, a fence is arranged around the periphery of the rotating shaft, and sliding grooves are arranged on both sides of the fence. The front ends of the first clamping block and the second clamping block correspond to corresponding sliding grooves respectively to achieve limiting.

[0013] Preferably, the short-circuit comprises a conductive sheet body, the end of the conductive sheet body is bent to form a terminal socket connection pin, and a conductive connector protruding from the conductive sheet body is arranged at the top of the conductive sheet body.

[0014] Preferably, the conductive connector is arranged on the outer side of the top end of the conductive sheet body.

[0015] In summary, the present invention mainly has the following beneficial effects:

[0016] When the present application short-circuits the electrical contacts in the terminal socket, a short-circuit is used for short-circuiting, and a protruding conductive connector is provided on the short-circuit, so that the two short-circuit members will not be separated or broken due to deformation, and the safety performance is better; at the same time, a torsion spring arm is used to connect the first clamping block and the second clamping block to form an integrated interlocking structure, which prevents the meter plug from being accidentally pulled out, improves the safety of use, and has a smaller size, which is convenient for on-site installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of A;

[0020] Figure 4 It is a schematic diagram of the structure of the present invention without the outer shell;

[0021] Figure 5 It is a structural schematic diagram of two meter plug housings of the present invention;

[0022] Figure 6 It is a partial structural schematic diagram of the integrated interlocking assembly of the present invention;

[0023] Figure 7 It is a schematic diagram of the circuit connection structure in the base of the present invention;

[0024] Figure 8 It is a schematic diagram of the cross-sectional structure of the terminal socket portion of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the short-circuit component of the present invention;

[0026] Fig.10 It is a schematic diagram of the terminal plug structure of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] refer to Figure 1-10The intelligent terminal access device described in this embodiment includes a base 1, on which a row of terminal sockets 2 and two rows of meter sockets 3 are provided, and also includes a terminal plug 4 electrically connected to the terminal sockets, and a meter plug 5 electrically connected to the two rows of meter sockets respectively, and the side of the base is provided with a wiring part 6, and the wiring part includes a plurality of wiring heads 7, wherein the meter sockets and the terminal sockets are connected to the wiring heads corresponding to the positions through conductive connectors, respectively, to form a plurality of current and voltage loops 8 and a group of grounding loops 9, wherein a short-circuit 10 is respectively provided on two adjacent sockets in the terminal plug column in the current outflow loop, and in the initial state, the two short-circuit pieces are butt-jointed to realize short-circuit, and correspondingly, an insulating plate 11 for disconnecting the two short-circuit pieces is provided on the terminal plug, and after the terminal plug is electrically connected to the terminal socket, the insulating plate is placed between the two short-circuit pieces, so that the secondary circuit is short-circuited and disconnected. The two rows of meter plug posts are connected and connected. Two sets of integrated interlocking components are arranged between the two rows of meter plug posts. The integrated interlocking components include a torsion spring arm 12 arranged on the base. The two ends of the torsion spring arm are provided with a first clamping block 13 and a second clamping block 14. One end of the first clamping block is provided with an inclined push surface 15 obliquely downward. One end of the second clamping block extends to form a hook portion 16. When installed, the inclined push surface and the hook portion are arranged opposite to each other, respectively corresponding to the meter plugs on both sides. A push block 17 is arranged on the meter plug housing on the side corresponding to the inclined push surface, and a card slot 18 is arranged on the meter plug housing on the side corresponding to the card hook portion. Among them, each meter plug housing is provided with a push block 17 and a card slot 18, and the front and rear positions of the push blocks 17 and the card slot 18 on the two meter plug housings are opposite; the first clamping block and the second clamping block in the two sets of integrated interlocking components correspond to different meter plugs. That is, when one meter plug housing is pulled out, the other meter plug housing is stuck.

[0030] When both meter plugs are inserted into the meter socket, the first card block is pushed by the push block on the meter plug, so that the connected second card block is away from the corresponding meter plug. At this time, one of the two meter plugs can be pulled out at will. When one of the meter plugs is pulled out, the hook portion of the second card block in the integrated interlocking assembly connected to it by an inclined push surface moves toward the other meter plug and is inserted into the card slot to lock the meter plug.

[0031] Specifically, two rotating shafts 19 are integrally formed on the base, and the two rotating shafts are arranged between the two meter plugs. The two rotating shafts are connected to a rotating arm 12 one by one, and a torsion spring is arranged between the rotating arm and the rotating shaft to form the torsion spring arm. The rotating arm includes a central sleeve shaft 21, which extends along the central sleeve shaft to form a rotating arm body 22 on both sides. The central sleeve shaft is sleeved on the rotating shaft, and the torsion spring is sleeved on the rotating shaft. The two torsion spring arms are respectively against the two rotating arm bodies. The first clamping block includes a first clamping block body 23, and one side of the first clamping block body extends to form the inclined push surface. The first clamping block body is provided with a first connecting hole 24, and the second clamping block includes a second clamping block body 25, and one side of the second clamping block body forms a pointed The hook portion, the second clamping block body is provided with a second connecting hole 26, the first clamping block and the second clamping block are respectively connected to the end of the rotating arm body through the first connecting hole and the second connecting hole, and the two rotating arm bodies are provided with a through hole 27, the torsion spring arm of the torsion spring is clamped in the through hole, a fence 28 is provided around the periphery of the rotating shaft, and sliding grooves 29 are provided on both sides of the fence. The front ends of the first clamping block and the second clamping block correspond to corresponding sliding grooves respectively to achieve limiting. The short-circuit component includes a conductive sheet body 30, the end of the conductive sheet body is bent to form a terminal socket connecting pin 31, and the top of the conductive sheet body is provided with a conductive connector 32 protruding from the conductive sheet body, and the conductive connector is arranged on the outer side of the top of the conductive sheet body.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent terminal access device, characterized in that: It includes a base, on which a row of terminal sockets and two rows of meter sockets are provided, and also includes a terminal plug electrically connected to the terminal sockets, and a meter plug electrically connected to the two rows of meter sockets respectively, and a wiring part is provided on the side of the base, and the wiring part includes a plurality of wiring heads, wherein the meter sockets and the terminal sockets are connected to the wiring heads corresponding to the positions through conductive connectors respectively, so as to form a plurality of current and voltage loops and a group of grounding loops, wherein a short-circuit is respectively provided on two adjacent sockets in the terminal plug-in column in the current outflow loop, and in the initial state, the two short-circuit components are butt-jointed to realize short-circuit, and correspondingly, an insulating plate for disconnecting the two short-circuit components is provided on the terminal plug, and after the terminal plug is electrically connected to the terminal socket, the insulating plate is placed between the two short-circuit components, so that the secondary circuit is short-circuited and disconnected and connected to the terminal plug, and two sets of integrated interlocking components are provided between the two rows of meter plug-in columns.

2. The intelligent terminal access device according to claim 1, characterized in that: The integrated interlocking component includes a torsion spring arm arranged on the base, and a first clamping block and a second clamping block are arranged on both ends of the torsion spring arm. One end of the first clamping block is provided with an inclined push surface inclined downward, and one end of the second clamping block extends to form a hook portion. When installed, the inclined push surface and the hook portion are arranged opposite to each other, respectively corresponding to the meter plugs on both sides, a push block is arranged on the meter plug shell on the side corresponding to the inclined push surface, and a card slot is arranged on the meter plug shell on the side corresponding to the hook portion. The first clamping block and the second clamping block in the two sets of integrated interlocking components correspond to different meter plugs.

3. The intelligent terminal access device according to claim 2, characterized in that: Two rotating shafts are integrally formed on the base, and both rotating shafts are arranged between the two meter plugs. The two rotating shafts are connected to a rotating arm one by one, and a torsion spring is arranged between the rotating arm and the rotating shaft to form the torsion spring arm.

4. The intelligent terminal access device according to claim 3, characterized in that: The rotating arm comprises a central sleeve shaft, which extends along the central sleeve shaft to form a rotating arm body, the central sleeve shaft is sleeved on the rotating shaft, the torsion spring is sleeved on the rotating shaft, and two torsion spring arms respectively abut against the two rotating arm bodies.

5. The intelligent terminal access device according to claim 2, characterized in that: The first clamping block includes a first clamping block body, one side of the first clamping block body extends to form the inclined push surface, the first clamping block body is provided with a first connecting hole, the second clamping block includes a second clamping block body, one side of the second clamping block body forms the pointed hook portion, the second clamping block body is provided with a second connecting hole, the first clamping block and the second clamping block are respectively connected to the end of the rotating arm body through the first connecting hole and the second connecting hole.

6. The intelligent terminal access device according to claim 5, characterized in that: Through holes are arranged on the two rotating arm bodies, and the torsion spring arms of the torsion springs are clamped in the through holes.

7. The intelligent terminal access device according to claim 2, characterized in that: A fence is arranged around the periphery of the rotating shaft, and sliding grooves are arranged on both sides of the fence. The front ends of the first clamping block and the second clamping block correspond to the corresponding sliding grooves respectively to achieve limiting.

8. The intelligent terminal access device according to claim 1, characterized in that: The short-circuit comprises a conductive sheet body, the end of which is bent to form a terminal socket connection pin, and a conductive connector protruding from the conductive sheet body is arranged at the top of the conductive sheet body.

9. The intelligent terminal access device according to claim 9, characterized in that: The conductive connector is arranged on the outer side of the top end of the conductive sheet body.

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