CN112415241B - A plug-in base for low-voltage uninterrupted meter replacement - Google Patents

Abstract

The invention relates to a novel low-voltage uninterrupted meter-changing plug-in base. The problem of general ammeter change in-process outage is solved, including short connector, plug mechanism and automatic telescopic machanism, the short connector setting is on plug mechanism, and automatic telescopic machanism includes two flexible subassemblies, and flexible subassembly includes the supporting seat, and arc pole, straight-bar and rotation lever, arc pole setting are on the supporting seat, and rotation lever one end is connected to straight-bar one end, and the rotation lever other end is connected to arc pole one end, and arc pole one end still is connected with the spring that one end was fixed on the base, and the arc pole other end is connected with the short connector. The beneficial effects are as follows: realized that the ammeter is changed the in-process and is not cut off power supply, change easy operation moreover, only need take out treat the ammeter of changing and insert again new ammeter can, the simple and easy high efficiency of process has alleviateed relevant staff's work burden greatly, in addition, the short circuit ware is automatic in the installation and closes and the separation, does not need manually, has avoided the danger of electric shock.

Description

A plug-in base for low-voltage uninterrupted meter replacement

technical field

The invention relates to a mounting seat for an electric meter, in particular to a plug-in base for changing a meter without power interruption at low voltage.

Background technique

With the continuous advancement of science and technology, the quality and accuracy of today's electric energy meters are also getting higher and higher, and the requirements for lean metering management of State Grid Corporation are also getting higher and higher. Require. However, each electric energy meter always has a certain service life, and there will be certain hidden dangers after many years of operation. Currently, the State Grid Corporation of China needs to replace new electric meters every few years. In addition, when the electric energy meter suddenly fails, it needs to be replaced as soon as possible, so as to ensure the normal power measurement of the user.

For residential users, the current meter replacement adopts the power outage operation mode of "first disconnect the metering box inlet switch, then replace the electric energy meter, and then resume power transmission". Power outage for users who have not changed the meter in the same metering box. At present, in some cases, rural residents are temporarily notified of a power outage before the electricity meter is replaced, so that the home can be properly prepared. , so the meter is replaced by a sudden power outage. Most of the power failure problems of public distribution transformers have been solved by the mutual inversion of distribution lines and dual power supply. There is no effective solution to the power failure problem at the end of the user caused by the replacement of electric energy meters.

Under the background that the majority of power users have higher and higher requirements for power supply reliability, meter replacement and power outages have seriously affected the quality of power supply services, affected users' good power experience, and even caused damage to users' electrical equipment. In fact, no matter what kind of electrical product a sudden power failure is, although the current electrical self-protection function has been very perfect, it cannot 100% guarantee the damage caused by any sudden situation. The most easily damaged are computers and refrigerators, because the refrigerator is suddenly powered off during operation, and the compressor is in a high-voltage state at this time. It is easy to burn out the compressor. The same is true for computers. After a sudden power failure, a sudden power call will generate a surge current, which is easy to burn out the computer motherboard, and lose important data that you forgot to save. Even some large files are damaged due to a sudden power failure and cannot be opened again. Reproduction takes a lot of time and effort. In addition, when frozen or refrigerated food is placed in the home refrigerator, the quality of food preservation will be seriously affected after a power failure, and even the entire refrigerator food will be scrapped, causing great economic losses to users. To sum up, power outages will seriously lead to residents' experience of electricity use, and the business environment will have a poor "feeling of power", which may lead to user claims or direct complaints. Therefore, it is imminent for households to change the meter without power outage.

On the other hand, for the metering and assembling personnel, each time the meter is replaced, the four screws and fixing screws of the wires need to be removed with a screwdriver first, and then the four screws and fixing screws must be tightened again when installing a new meter. In addition, the user is notified in advance. The power outage time, the entire meter replacement time is about 10 minutes. With the continuous expansion and development of cities, the number of residential quarters increases year by year, so the number of residential electricity meters also increases. When the electricity meters are used for a certain number of years, their potential failure rate hidden dangers and measurement accuracy are greatly reduced. At present, there are about 50,000 single-phase electric energy meters in operation in the Binhai branch, and about 20,000 single-phase electric meters in the residential area under construction. The annual rotation number is about 20% of the total, and the annual electric energy meter rotation and failure number are about 14,000 or so. , the number of replacements is huge, so the labor cost required to replace the meter is also increasing year by year. In the case of unabated other additional work tasks, the work pressure of the measurement team is also increasing, the work quality will decline, and the lean indicators will be seriously affected. Therefore, if a quick watch change can be realized, the time consumed by the watch change process can be shortened to a great extent, which can undoubtedly reduce the workload of employees and increase the work efficiency of employees.

SUMMARY OF THE INVENTION

The invention solves the problem of power failure during the replacement process of a general electric meter, and provides a plug-in base for changing the meter without power failure at low voltage.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a plug-in base for low-voltage uninterrupted meter exchange, including a shorter, a plug-in mechanism and an automatic telescopic mechanism, and the shorter is arranged on the plug-in mechanism, The automatic telescopic mechanism includes two telescopic components. The telescopic component includes a support base, an arc-shaped rod, a straight rod and a rotating lever. The arc-shaped rod is arranged on the support base. At one end, one end of the arc-shaped rod is also connected with a spring whose one end is fixed on the base, and the other end of the arc-shaped rod is connected with a shorting connector. When the meter is replaced, the automatic telescopic mechanism automatically drives the short-circuiter to short-circuit the relevant circuit parts in the plug-in mechanism to ensure the continuity of the power supply.

As a preferred solution of the above solution, the support base is provided with an arc groove corresponding to the shape of the arc rod. The middle part of the arc-shaped rod is located in the arc-shaped groove so that the arc-shaped rod can slide along the arc-shaped groove.

As a preferred solution of the above solution, the plug-in mechanism includes a support base plate and four metal plugs arranged on the support base plate. Four metal plugs are arranged in a line.

As a preferred solution of the above solution, the metal plug includes a plug-in head and a plug-in rod, and the plug-in rod is embedded inside the support bottom plate.

As a preferred solution of the above solution, the plugging rod is provided with a first fixing hole and a second fixing hole.

As a preferred solution of the above solution, a first groove and a second groove are opened on the side of the supporting base plate, and four current clips are arranged in the first groove, and the current clips are connected to the first groove of the plug-in rod through screws. on the fixing hole. Because the plugging rod is embedded inside the support base plate, the screw is inserted into the hole in the middle of the current clip and the inner wall of the first groove and then screwed into the first fixing hole of the plugging rod.

As a preferred solution of the above solution, four fixing screws are arranged in the second groove, and the fixing screws penetrate the inner wall of the second groove and the second fixing hole to realize the fixed connection between the insertion rod and the support base plate.

As a preferred solution of the above solution, the shorting connector includes an insulating seat, and insulating brackets are arranged at both ends of the insulating seat, and a short-circuiting metal conductor is arranged on the insulating bracket.

As a preferred solution of the above solution, the short connector is rotatably connected to the side surface of the support bottom plate. The connection between the shorting connector and the side surface of the supporting bottom plate is through the rotational connection between one side of the insulating base of the shorting connector and the side surface of the supporting bottom plate.

As a preferred solution of the above solution, the automatic telescopic mechanism further includes a turning plate, which is rotatably connected to the support bottom plate, and the two ends of the turning plate are respectively connected to the other end of the straight rod.

Compared with the prior art, the beneficial effects of the present invention are:

By setting the automatic telescopic mechanism and the short circuit breaker, the electric meter is not powered on during the replacement process, and the replacement operation is simple. It is only necessary to pull out the electric meter to be replaced and then plug in the new electric meter. The process is simple and efficient, and the work of the relevant staff is greatly reduced. Burden, in addition, the short circuit is automatically closed and separated during installation, no manual operation is required, and the risk of electric shock is avoided.

Description of drawings

Fig. 1 is the side view of the present invention;

Fig. 2 is the structural representation of the plug-in mechanism of the present invention;

3 is a schematic structural diagram of a short-circuited metal conductor of the present invention;

Fig. 4 is the front view of the present invention;

Figure 5 is a wiring diagram of the present invention.

1- base body, 2- plug-in mechanism, 3- short connector, 4- automatic telescopic mechanism, 5- telescopic assembly; 21- support base plate, 22- metal plug; 221- plug-in head, 222- plug-in rod, 223-first fixing hole, 224-second fixing hole; 211-first groove, 212-second groove, 213-current clip, 214-fixing screw; 31-insulation base, 32-insulation bracket, 33- Short-circuit metal conductors; 51-rotating plate, 52-arc rod, 53-support seat, 54-rotating lever, 55-spring, 56-straight rod, 57-arc groove.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The technical solutions of the present invention will be further described below through examples and in conjunction with the accompanying drawings.

Embodiment: In this embodiment, a plug-in base for low-voltage uninterruptible meter replacement, as shown in Figures 1 to 4, includes a base body, a shorter, a plug-in mechanism and an automatic telescopic mechanism, and the shorter is arranged on the plug-in mechanism. The automatic telescopic mechanism includes two telescopic components. The telescopic component includes a support seat, an arc-shaped rod, a straight rod and a rotating lever. The arc-shaped rod is arranged on the support base. One end of the straight rod is connected to one end of the rotating lever, and one end of the arc-shaped rod is connected to the rotating lever. The other end of the lever and one end of the arc-shaped rod are also connected with a spring whose one end is fixed on the base, and the other end of the arc-shaped rod is connected with the short connector. When the meter is replaced, the automatic telescopic mechanism automatically drives the short-circuiter to short-circuit the relevant circuit parts in the plug-in mechanism to ensure the continuity of the power supply.

Wherein, the support seat is provided with an arc groove corresponding to the shape of the arc rod. The middle part of the arc-shaped rod is located in the arc-shaped groove so that the arc-shaped rod can slide along the arc-shaped groove.

Wherein, the plug-in mechanism includes a support base plate and four metal plugs arranged on the support base plate. Four metal plugs are arranged in a line.

Wherein, the metal plug includes a plug-in head and a plug-in rod, and the plug-in rod is embedded inside the support bottom plate.

Wherein, the plugging rod is provided with a first fixing hole and a second fixing hole.

Wherein, a first groove and a second groove are opened on the side of the support base plate, and four current clips are arranged in the first groove, and the current clips are connected to the first fixing holes of the plugging rod through screws. Because the plugging rod is embedded inside the support base plate, the screw is inserted into the hole in the middle of the current clip and the inner wall of the first groove and then screwed into the first fixing hole of the plugging rod.

Wherein, four fixing screws are arranged in the second groove, and the fixing screws penetrate the inner wall of the second groove and the second fixing hole to realize the fixed connection between the plug-in rod and the supporting bottom plate.

Wherein, the shorting connector includes an insulating seat, two ends of the insulating seat are provided with insulating brackets, and the insulating brackets are provided with short-circuiting metal conductors. The shape of the shorting metal conductor corresponds to the current clip, the shorting device is inserted into the first groove, and the shorting metal conductor is embedded in the two current clips, thereby connecting the two current clips.

Wherein, the short connector is rotatably connected to the side surface of the support base plate. The connection between the shorting connector and the side surface of the supporting bottom plate is through the rotational connection between one side of the insulating base of the shorting connector and the side surface of the supporting bottom plate.

Wherein, the automatic telescopic mechanism further comprises a turning plate, the turning plate is rotatably connected to the supporting base plate, and the two ends of the turning plate are respectively connected with the other end of the straight rod.

In addition, as shown in Figure 5, the four metal plugs can be numbered 1, 2, 3, 4 from left to right, and the live wire and the neutral wire are connected to the No. 1 and No. 3 metal plugs respectively after entering from the incoming air switch. , No. 2 and No. 4 metal plugs are respectively connected to the corresponding wiring of the outlet air switch.

Its working process is that during the process of replacing the electric meter, the electric meter originally located on the base is pulled out. During the extraction process, the electric meter slowly begins to not be able to press the turning plate, so that the spring shrinks, and the spring shrinks to drive the arc rod to rotate. The rotation of the rod drives the shorter to be inserted into the first groove, and the two short-circuit metal conductors of the shorter are respectively shorted to the two current clips on the left and the two current clips on the right, because each current clip is connected to the corresponding one metal plugs, so the two metal plugs on the left (ie, metal plugs No. 1 and 2) and the two metal plugs on the right (ie, metal plugs No. 3 and metal plugs No. 4) are short-circuited, so in the meter When it is not completely pulled out, the spare circuit connected by the metal plug will be turned on, and the power will not be cut off during the change of the watch; when the new watch is inserted, the new watch will press the turning plate, and the straight rod will drive the rotating lever to rotate. The lever drives the arc rod to rotate and pull away from the short-circuit connector, the spare line connected by the metal connector is disconnected, and the meter starts to work.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (3)

1. A low-voltage non-power-outage meter-changing pluggable base comprises a base body and is characterized by comprising a short connector, a plugging mechanism and an automatic telescoping mechanism, wherein the short connector is arranged on the plugging mechanism, the automatic telescoping mechanism comprises two telescoping components, each telescoping component comprises a supporting seat, an arc-shaped rod, a straight rod and a rotating lever, the arc-shaped rod is arranged on the supporting seat, one end of the straight rod is connected with one end of the rotating lever, one end of the arc-shaped rod is connected with the other end of the rotating lever, one end of the arc-shaped rod is further connected with a spring, one end of the spring is fixed on the base, the other end of the arc-shaped rod is connected with the short connector, a cambered groove corresponding to the shape of the arc-shaped rod is formed in the supporting seat, the plugging mechanism comprises a supporting bottom plate and four metal plugs arranged on the supporting bottom plate, each metal plug comprises a plugging head and a plugging rod, the plugging rods are embedded in the supporting bottom plate, first fixing holes and second fixing holes are formed in the plugging rods, the first grooves and the second fixing holes are formed in the side faces of the supporting bottom plate, four current clamps are arranged in the first grooves, the current clamps are connected to the first fixing holes of the plugging rods through screws, the short connector comprises an insulating seat, two insulating support brackets are arranged at two ends of which are arranged on which are respectively connected to one side of an insulating conductor, one side of the short connector, one side of the rotating lever, and the rotating plate is connected to one side of the rotating lever, and connected to the rotating plate;

its working process is, changes the ammeter in-process, will originally be located the ammeter on the base and take out, and at the in-process of taking out, the ammeter slowly begins to push down the commentaries on classics board to make the spring shrink, the spring shrink drives the arc pole and rotates, and the arc pole rotates and drives the short connector and insert first recess, and two short circuit metallic conductor of short connector short circuit two current clamps in left side and two current clamps in right side respectively.

2. The low-voltage uninterrupted meter-changing pluggable base as claimed in claim 1, wherein four fixing screws are arranged in the second groove, and the fixing screws penetrate through the inner wall of the second groove and the second fixing hole to realize the fixed connection between the plug-pull rod and the supporting bottom plate.

3. The low-voltage uninterrupted power supply meter-changing pluggable base as claimed in claim 1, wherein the short connector is rotatably connected to the side surface of the supporting baseplate.

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