Electric energy meter convenient to disassemble and assemble

Abstract

The electric energy meter convenient to disassemble and assemble comprises an electric energy meter body, one side of the electric energy meter body is provided with a disassembly and assembly adjusting groove extending in the vertical direction, and a connecting plate is installed in the groove in an up-down sliding mode; the electric energy meter body is further provided with an energy storage assembly, a pull rope is connected between the energy storage assembly and the connecting plate, and energy storage of the energy storage assembly is achieved by moving the pull rope of the connecting plate. The electric energy meter body comprises a wiring terminal board, and the bottom of the wiring terminal board is provided with a plurality of terminal slots in which wiring terminals are inserted; the electric energy meter is internally provided with an end pop-up mechanism which is in transmission connection with the energy storage assembly. And the terminals can be ejected in batches under the driving of the energy storage assembly. And through the pressing assembly, the binding posts can be popped up in batches and in order. According to the design, wires with different potentials are isolated in time and space, so that an operator can process the wires leisurely.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric energy meter, in particular to an electric energy meter convenient to disassemble and assemble. BACKGROUND

[0002] The electric energy meter is a metering instrument for measuring and recording electric energy consumption, usually installed in the distribution box of residential, commercial or industrial sites. It is connected with external power lines and load lines through terminals, and is an important basis for electric power companies to charge users.

[0003] However, the existing electric energy meter still has low efficiency and safety hazards in the process of disassembly and replacement. The operator needs to loosen each terminal screw or push the overall spring structure one by one, so as to take down all the electric wires connected to the electric energy meter. After all the terminals are removed at one time, the exposed metal wire ends will gather together due to the loss of fixed support, which can easily cause short circuit.

[0004] In order to reduce the risk of short circuit, maintenance personnel usually need to wrap each bare wire with insulating tape, or temporarily support and fix it immediately after the terminal is removed. The above operation not only increases the labor cost, but also prolongs the power-off time, affecting the normal power supply and maintenance efficiency of the power distribution system.

[0005] Although there are quick-release terminal designs that can release the terminal assembly in one key, they still cannot avoid the problem of short circuit caused by the simultaneous contact of all wire ends after being popped out, and cannot significantly improve the safety and convenience of the disassembly process. SUMMARY

[0006] The main purpose of the present application is to overcome the shortcomings of the prior art, and to provide an electric energy meter convenient to disassemble and assemble, which aims to solve the problems of low disassembly efficiency, complicated operation and serious short circuit safety hazards of the existing electric energy meter.

[0007] In order to achieve the above purpose, the present application provides the following technical scheme:

[0008] An electric energy meter convenient to disassemble and assemble, comprising an electric energy meter body, a disassembly and assembly adjusting groove is arranged on one side of the electric energy meter body, and a connecting plate is slidably installed in the disassembly and assembly adjusting groove;

[0009] An energy storage assembly is further arranged on the electric energy meter body, and a pull rope is connected between the energy storage assembly and the connecting plate, so that the energy storage of the energy storage assembly is realized by moving the connecting plate and the pull rope;

[0010] The electric energy meter body comprises a terminal block, a plurality of terminal insertion slots into which terminal blocks are inserted are arranged on the bottom of the terminal block; an terminal ejection mechanism is installed inside the electric energy meter and is in transmission connection with the energy storage assembly; the terminal ejection mechanism can eject the terminal blocks in batches under the drive of the energy storage assembly.

[0011] As a further optimization of the present application:

[0012] The energy storage assembly comprises a central shaft fixed in the body of the electric energy meter, an energy storage wheel and a rope wheel rotatably sleeved on the outer wall of the central shaft, a ratchet fixed on one side of the energy storage wheel, a pawl provided on the side edge of the ratchet, the pawl being rotatably installed on the rope wheel through a rotating shaft, an energy storage coil spring provided in the energy storage wheel, the two ends of the energy storage coil spring being connected to the rope wheel and the energy storage wheel respectively, the rope wound around the rope wheel, and one end of the rope connected to the connecting plate.

[0013] Further, the dismounting and adjusting groove extends in the vertical direction; the terminal ejection mechanism comprises a pressing assembly and an ejecting assembly;

[0014] The pressing assembly comprises a left transmission gear and a right transmission gear engaged with the energy storage wheel, and a driving bevel gear fixed on each of the left transmission gear and the right transmission gear.

[0015] The pressing assembly further comprises a pressing rod slidable in the vertical direction, and the pressing rod is in transmission connection with the driving bevel gear.

[0016] Further, the energy storage wheel is provided with a pressing rod on each side, one side of the pressing rod is used to drive a part of the ejecting assembly, and the other side of the pressing rod is used to drive the remaining ejecting assembly.

[0017] The movement phases of the pressing rods on the two sides are opposite.

[0018] Further, the ejecting assembly comprises a housing, a ejection rod slidably arranged in the housing, and a tapered clamping portion provided on the ejection rod.

[0019] A pressing piece in sliding connection with the ejection rod is sleeved on the outside of the ejection rod, a resilient spring is arranged between the pressing piece and the ejection rod, and a trigger rod is further fixedly connected to the pressing piece.

[0020] A clamping block is slidably arranged in the housing in the horizontal direction, a notch corresponding to the clamping portion is provided on the clamping block, and an oblique sliding groove corresponding to the trigger rod is further provided on the clamping block.

[0021] Further, a first reset spring is arranged between the housing and the pressing piece, and a second reset spring is arranged between the clamping block and the housing.

[0022] Further, the terminal ejection mechanism further comprises a limiting block slidable in the horizontal direction, one end of the limiting block is engaged with the energy storage wheel, and a pushing portion is further provided on the limiting block.

[0023] Further, a limiting spring is arranged between the limiting block and the electric energy meter body, and the limiting spring makes the limiting block have a movement tendency close to the energy storage wheel.

[0024] Further, the outer side of the terminal block is detachably connected with the electric energy meter body through a bolt and an extrusion plate.

[0025] Further, the left and right ends of the connecting plate are both front and rear through dismounting holes.

[0026] The connecting plate can be fixedly connected with the electric energy meter body through a bolt.

[0027] The beneficial effects of the present application are:

[0028] 1. Realize batch ejection, fundamentally avoid short circuit risk: through the pressing assembly, realize the batch and orderly ejection of the terminal (for example, first eject the phase line group, then eject the zero line). This design isolates the wires of different potentials in time and space, so that the operator can calmly handle the first batch of ejected wires and then handle the second batch.

[0029] 2. Simplify the operation mode and improve the work efficiency: change the traditional complicated "screw by screw" operation into a simple "energy storage-triggering" two-step mechanical action. The operator does not need to use any tool, and only needs to pull the connecting plate and operate the limiting block to complete the automatic separation of all terminals in a few seconds. This greatly simplifies the operation process and directly solves the problems of complicated operation and low efficiency in the background technology.

[0030] 3. Eliminate redundant auxiliary procedures and significantly reduce the comprehensive cost: since the batch ejection mechanism itself provides high safety, the operator does not need to perform additional auxiliary work such as pre-wrapping insulation tape before dismounting. This not only saves material cost and labor cost, but more importantly, by shortening the overall operation process, effectively reduces the power-off time of the user, improves the power supply reliability and customer satisfaction of the power grid, and effectively solves the problem of increasing comprehensive cost caused by additional procedures. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present application.

[0033] Figure 2This is a cross-sectional view of an embodiment of the present invention;

[0034] Figure 3 for Figure 2 Enlarged view of part A;

[0035] Figure 4 This is a perspective sectional view of an energy storage component according to an embodiment of the present invention;

[0036] Figure 5 This is a cross-sectional view of a terminal block in one embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Electricity meter body; 11. Disassembly and adjustment slot; 12. Connecting plate; 13. Disassembly and assembly hole;

[0039] 2. Energy storage component; 21. Central shaft; 22. Energy storage wheel; 221. Left drive gear; 222. Right drive gear; 23. Rope pulley; 24. Pawl; 25. Ratchet; 26. Energy storage coil spring; 27. Drive bevel gear;

[0040] 3. Terminal block; 31. Terminal block; 32. Terminal slot;

[0041] 4. Terminal ejection mechanism; 41. Ejection assembly; 411. Housing; 412. Ejection rod; 4121. Snap-fit ​​part; 4122. Spring; 413. Pressing part; 414. Locking block; 415. Angled slide groove; 416. Trigger rod; 417. First reset spring; 418. Second reset spring;

[0042] 5. Pressing rod; 6. Restricting block; 61. Restricting spring; 7. Squeezing plate. Detailed Implementation

[0043] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0044] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0045] like Figures 1 to 5 As shown, the present invention provides an energy meter that is easy to assemble and disassemble. It mainly includes an energy meter body 1, a connecting plate 12 installed on the rear side of the body, an energy storage component 2, a terminal block 3, and a terminal pop-out mechanism 4.

[0046] The rear side of the electric energy meter body 1 is provided with a vertical disassembly and adjustment slot 11, and the connecting plate 12 can slide up and down in the slot. The connecting plate 12 is provided with a disassembly hole 13, and can be fixed at a specific position by a bolt.

[0047] The energy storage assembly 2 is a power source for automatic ejection. It includes a central shaft 21, and the energy storage wheel 22 and the rope wheel 23 are independently rotatable on the central shaft 21. The rope wheel 23 is wound with a pull rope, and the end of the pull rope is connected with the connecting plate 12. When the connecting plate 12 is slid downward, the pull rope is pulled to rotate the rope wheel 23. The pawl 24 is installed on the rope wheel 23, and the ratchet 25 is fixed on the energy storage wheel 22. When the rope wheel 23 rotates, the pawl 24 will push the ratchet 25 to drive the energy storage wheel 22 to rotate in the same direction. The energy storage coil spring 26 is arranged in the energy storage wheel 22, and one end of the energy storage coil spring 26 is connected with the energy storage wheel 22, and the other end is connected with the rope wheel 23. Therefore, the rotation of the energy storage wheel 22 will tighten the energy storage coil spring 26, so as to store the ejection energy.

[0048] The terminal ejection mechanism 4 is the core of safe disassembly. It is composed of a pressing assembly and a plurality of ejection assemblies 41.

[0049] The pressing assembly is in transmission connection with the energy storage wheel 22. Specifically, the left and right sides of the energy storage wheel 22 are respectively engaged with the left transmission gear 221 and the right transmission gear 222. The driving bevel gear 27 is coaxially fixed on the two gears, and the driving bevel gear 27 is in engagement with the rack or corresponding bevel gear on the press rod 5. The key is that the design of the two-side transmission mechanism makes the two press rods 5 produce opposite vertical movements when the energy storage wheel 22 rotates, that is, one goes down while the other keeps still or goes up, and vice versa. One side of the press rod 5 corresponds to control a part of the terminal 31 (such as the live wire and the neutral wire), and the other side of the press rod 5 controls the remaining terminals (such as other phase wires).

[0050] The biggest risk of the traditional disassembly method is that the multiple bare wires with different potentials (such as live wires L1, L2, L3 and neutral wire N) are exposed in the same narrow space, which is easy to be connected to cause severe inter-phase short circuit or ground short circuit. The batch ejection mechanism ensures that the wires with different potentials are effectively isolated in physical space and operation time through preset programs, such as ejecting the live wire group (L1, L2, L3) first, and then ejecting the neutral wire (N), or vice versa. The operator can calmly handle the first batch of ejected wires (for example, put on an insulating cap or connect to a temporary terminal row), and then trigger the ejection of the second batch of wires, thereby completely and significantly reducing the possibility of all wires being exposed and contacted at the same time at the physical level.

[0051] Meanwhile, in the presence of live or residual charge, simultaneous disconnection of multiple wires can cause arcing. Disconnecting in batches and small scale significantly reduces the energy and probability of dangerous arcing, protecting the operator from the risk of arc burns. Further, the controlled and orderly process of disassembly greatly relieves the psychological stress of the operator when facing complex wiring. Instead of trying to control all the falling wires in an instant, the operator can focus and calmly deal with a few wires, which itself greatly reduces the risk of misoperation due to tension.

[0052] Each terminal 31 corresponds to a pop-out assembly 41. As shown in Figure 3 、 Figure 4 , the pop-out assembly 41 includes a housing 411, an ejector rod 412, a pressing piece 413, and a locking block 414. The terminal 31 is inserted below the ejector rod 412. In normal operation, the locking block 414 is clamped with the conical clamping portion 4121 on the ejector rod 412 through the gap on the locking block 414 under the action of the second reset spring 418, firmly locking the terminal.

[0053] The external pressing rod 5 presses the top of the pressing piece 413 downward. The pressing piece 413 starts to slide vertically downward under external force. The vertical downward movement of the pressing piece 413 is converted into a horizontal rightward pushing force on the locking block 414 through a beveled slide groove 415. This horizontal pushing force forces the locking block 414 to slide rightward against the elastic force of the first reset spring 417. When the locking block 414 moves rightward by a sufficient distance, the gap on the left side of the locking block 414 is completely separated from the clamping portion 4121 of the ejector rod, and the locking of the ejector rod is instantly released.

[0054] The elastic potential energy stored in the compressed elastic spring 4122 is instantly released, pushing the ejector rod downward with great force. The lower end of the ejector rod hits and ejects the terminal 31 at high speed, making it separate from the wire from the terminal slot 32, completing the ejection action.

[0055] When the external downward pressure disappears, the second reset spring 418 at the top pushes the pressing piece 413 back to its initial upward position.

[0056] At the same time, the reset spring of the locking block 414 also pushes the locking block 414 back to its initial left locking position, preparing for the next locking.

[0057] In addition, the embodiment also includes a limiting block 6, which is engaged with the outer teeth of the energy storage wheel 22 under the action of the limiting spring 61, serving as a limiting and rhythm control function, ensuring the stability and reliability of the pop-out process. The outer side of the terminal plate 3 can also be installed with a pressing plate 7 through bolts, for further fixing and protecting the firmness of the wire connection.

[0058] The working process of the embodiment is as follows:

[0059] When the connecting plate 12 is slid downward during the installation of the electric energy meter body, the pull rope is pulled to rotate the rope wheel 23. The pawl 24 is installed on the rope wheel 23, and the ratchet wheel 25 is fixed on the energy storage wheel 22. When the rope wheel 23 rotates, the pawl 24 drives the ratchet wheel 25 to rotate the energy storage wheel 22 in the same direction. The energy storage coil spring 26 is installed inside the energy storage wheel 22, one end of which is connected to the energy storage wheel 22, and the other end of which is connected to the rope wheel 23. Therefore, the rotation of the energy storage wheel 22 tightens the energy storage coil spring 26, thereby storing elastic energy.

[0060] During the disassembly of the electric energy meter body, the operator first disconnects the upper power supply. Then, the operator removes the pressing plate 7, and then drives the limiting block 6. When the limiting block 6 is operated, the teeth thereof are disengaged from the tooth groove of the energy storage wheel 22, thereby releasing the locking of the energy storage wheel 22. Under the action of the strong elastic force accumulated in the energy storage coil spring 26, the energy storage wheel 22 reversely rotates at a high speed in an instant, thereby releasing the elastic potential energy stored therein.

[0061] The high-speed rotation of the energy storage wheel 22 drives the pressing rods 5 on both sides through the transmission gears and the driving bevel gears 27 on the left and right sides. Due to the opposite phase design of the transmission mechanisms on both sides, the pressing rod 5 on one side is first driven to move downward.

[0062] The pressing rod 5 presses down a corresponding batch of ejection assemblies 41 (such as the live wires L1, L2, and L3), thereby triggering the release of the ejecting rod 412 by the detent block 414 inside, and the first batch of terminal pins 31 together with the wires are instantaneously and neatly ejected.

[0063] At this time, the limiting block 6 is reset under the action of the limiting spring 61, thereby being engaged with the energy storage wheel 22 and limiting the rotation thereof. The operator again drives the limiting block 6, and with the re-rotation of the energy storage wheel 22, the pressing rod 5 on the other side is driven to move downward, thereby triggering the remaining ejection assemblies 41 in the same way to eject the second batch of terminal pins 31 (such as the neutral wire N).

[0064] The entire process is automatically completed in a very short time, and the operator only needs to perform two simple “unlocking” operations to realize the batch-by-batch, orderly, and safe separation of all the terminal pins. Subsequently, only the two batches of ejected wires need to be handled separately.

[0065] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An easily detachable electricity meter, comprising an electricity meter body, characterized in that: A disassembly and adjustment groove is provided on one side of the electricity meter body, and a connecting plate is slidably installed in the disassembly and adjustment groove. The electricity meter body is also equipped with an energy storage component. A pull rope connects the energy storage component to the connecting plate. The energy storage component stores energy by moving the connecting plate and pulling the rope. The electricity meter body includes a terminal block with multiple terminal slots for inserting terminals at its bottom; the electricity meter is equipped with a terminal ejection mechanism that is connected to the energy storage component; the terminal ejection mechanism can eject the terminals in batches under the drive of the energy storage component.

2. An easily detachable electricity meter, comprising an electricity meter body, characterized in that, The energy storage component includes a central shaft fixed within the electricity meter body. An energy storage wheel and a rope wheel are rotatably mounted on the outer wall of the central shaft. A ratchet is fixed to one side of the energy storage wheel, and a pawl is provided on the side of the ratchet. The pawl is rotatably mounted on the rope wheel via a rotating shaft. An energy storage coil spring is provided inside the energy storage wheel, and both ends of the energy storage coil spring are respectively connected to the rope wheel and the energy storage wheel. The pull rope is wound around the rope wheel, and one end of the pull rope is connected to the connecting plate.

3. The easy-to-disassemble electricity meter according to claim 1, characterized in that, The disassembly and assembly adjustment groove extends in a vertical direction; the terminal pop-out mechanism includes a pressing component and a pop-out component; The pressing assembly includes a left transmission gear and a right transmission gear that mesh with the energy storage wheel, and both the left transmission gear and the right transmission gear are fixed with drive bevel gears. The pressing assembly also includes a pressing rod that can slide in a vertical direction, and the pressing rod is drivenly connected to the drive bevel gear.

4. The easily detachable and assembleable electricity meter according to claim 3, characterized in that, Both sides of the energy storage wheel are provided with pressing rods. One pressing rod is used to drive a portion of the pop-out components, and the other pressing rod is used to drive the remaining pop-out components. The pressing rods on both sides move in opposite phases.

5. The easily detachable electricity meter according to claim 3, characterized in that, The ejection assembly includes a housing, an ejector rod slidably disposed within the housing, and a conical locking portion disposed on the ejector rod; A pressing component is slidably connected to the outer side of the ejector rod, and a spring is provided between the pressing component and the ejector rod; a trigger rod is also fixedly connected to the pressing component. A locking block is slidably disposed within the housing along the horizontal direction. The locking block has a notch corresponding to the locking part and an oblique groove corresponding to the trigger rod.

6. The energy meter that is easy to assemble and disassemble according to claim 5, characterized in that, A first reset spring is provided between the housing and the pressing member, and a second reset spring is provided between the locking block and the housing.

7. The energy meter that is easy to assemble and disassemble according to claim 1, characterized in that, The terminal ejection mechanism also includes a slidable limiting block, which can slide horizontally and has one end engaged with the energy storage wheel. The limiting block is also provided with a toggle part.

8. The easily detachable electricity meter according to claim 7, characterized in that, A limiting spring is provided between the limiting block and the energy meter body, and the limiting spring causes the limiting block to have a tendency to move closer to the energy storage wheel.

9. The energy meter that is easy to assemble and disassemble according to claim 1, characterized in that, A compression plate is detachably connected to the electricity meter body via bolts on the outer side of the terminal block.

10. The easily detachable energy meter according to claim 1, characterized in that, The connecting plate has disassembly holes running through both the left and right ends. The connecting plate can be fixedly connected to the electricity meter body by bolts.

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