Electric energy meter convenient to disassemble

Abstract

The utility model relates to an electric energy meter technical field especially, relates to a kind of electric energy meter convenient to dismount, including base, meter body, pull rod, push block, clamping column, card column and spring etc. The right part of base is symmetrically provided with screw hole, the front part of base is placed with meter body, the top of meter body is fixedly connected with pull rod, the right part of base is slidably connected with push block, the rear part of meter body is symmetrically fixedly connected with clamping column, the front part of base is symmetrically provided with round hole, two clamping columns are inserted into the inside of corresponding round hole, the left part of push block is inserted into the inside of base and is symmetrically fixedly connected with card column, clamping slot is formed in the side of one of two clamping columns, two card columns are inserted into the inside of corresponding clamping slot, spring is connected between base and push block. The utility model is pushed to push block by setting left, can drive card column to separate from the clamping slot of clamping column, spring is compressed at this time, clamping column is in free state in round hole, and operator can move meter body forward and complete dismounting by pull rod.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to an electricity meter that is easy to disassemble and assemble. Background Technology

[0002] An electricity meter is a specialized metering instrument for measuring and recording electrical energy consumption, with the unit being kilowatt-hour (kWh), or unit of electricity.

[0003] Currently, the primary installation method for electricity meters is DIN rail mounting, which is the most mainstream installation method for modern electricity meters. The back of the electricity meter is designed with a standard clip structure (usually a top hook and a bottom spring clip). During installation, first align the top hook of the electricity meter with the standard 35mm DIN rail already fixed inside the distribution box, then press it down. The bottom clip will automatically lock onto the rail, ensuring a secure installation. For disassembly, insert a screwdriver into the release hole of the bottom clip and press inward to disengage the clip from the rail. This method is simple and quick, facilitating batch installation and replacement, and is widely used in home distribution boxes, industrial control cabinets, and other scenarios. While the installation method for existing electricity meters on rails is standardized, in practical applications, although installation can be quickly performed by hooking the meter onto the rail, disassembly requires a specialized tool (screwdriver). Operators must position and operate the screwdriver with one hand within the confined space of the distribution box, precisely inserting it into the tiny release hole of the bottom clip and continuously pressing down, while simultaneously catching the detached meter with their other hand. This process is cumbersome, time-consuming, and labor-intensive, especially in high-altitude or poorly lit environments, where there is a high risk of tool slippage, meter drops causing damage, or injury. Furthermore, for scenarios requiring frequent meter replacement and calibration (such as metering centers and laboratories), this mandatory tool reliance significantly reduces work efficiency.

[0004] Therefore, it is necessary to design an energy meter that is easy to install and disassemble in order to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of existing electricity meter rail installation, which is easy to install but requires a screwdriver to operate in a confined space for disassembly, which is time-consuming and laborious, and is prone to tool slippage and meter drop, posing safety risks, and reducing work efficiency in scenarios with frequent replacements, this utility model provides an electricity meter that is easy to install and disassemble.

[0006] The technical solution is: An easy-to-assemble and disassemble electricity meter includes a base, a meter body, a pull rod, a push block, locking pins, locking pins, a spring, a terminal block, and a positioning pin. The base has symmetrically arranged screw holes on its right side. The meter body is placed at the front of the base, and a pull rod is fixedly connected to the top of the meter body. A push block is slidably connected to the right side of the base. Locking pins are symmetrically fixedly connected to the rear of the meter body. The front of the base has symmetrically arranged round holes, and two locking pins are inserted into their corresponding round holes. Locking pins are symmetrically fixedly connected to the left side of the push block inside the base. Each locking pin has a locking groove on one side, and the two locking pins are engaged in their corresponding locking grooves. A spring connects the base and the push block. A terminal block is fixedly connected to the front of the meter body. Multiple wiring slots are vertically arranged on the left side of the terminal block, and a positioning pin is fixedly connected inside each wiring slot.

[0007] Furthermore, it also includes a sealing cover and a fixing screw. The sealing cover is rotatably connected to the front of the watch body, and a fixing screw is threadedly connected between the left side of the watch body and the top of the sealing cover.

[0008] Furthermore, the left side of the sealing cover has multiple vertically distributed wire inlet holes, each located to the left of the corresponding wiring slot.

[0009] Furthermore, it also includes pressure blocks, sliding columns, moving blocks, screws, and connectors. Each wiring slot has a pressure block slidably connected inside. Each pressure block has a sliding groove on both sides. Each sliding groove has a sliding column slidably connected inside. Each pressure block has a moving block fixedly connected between the two sliding columns in the two sliding grooves. Each moving block slides in its corresponding wiring slot. Each wiring slot has a screw rotatably connected inside. Each screw is threadedly connected to its corresponding moving block. Each screw has a connector fixedly connected to the wiring seat on its left side.

[0010] Furthermore, each pressure block is provided with a through hole.

[0011] Furthermore, it also includes magnets, with magnets embedded and fixedly connected to the rear of the watch body and the front of the base.

[0012] Furthermore, each connector has a cross-shaped groove on its left side.

[0013] Furthermore, the sealing cap is made of a transparent material.

[0014] Furthermore, each locating pin passes through the corresponding through hole.

[0015] Furthermore, the two magnets attract each other.

[0016] The beneficial effects of this utility model are as follows: 1. This utility model, by setting a push block to the left, can drive the locking pin to disengage from the locking pin's locking groove. At this time, the spring is compressed, and the locking pin is in a free state in the round hole. The operator can then move the meter body forward to complete the disassembly by pulling the rod. The entire process does not require the use of any tools, avoiding the inconvenience of operating tools in a confined space, significantly reducing the safety risks of tool slippage and meter falling. It is particularly suitable for scenarios where electricity meters need to be replaced frequently, thus improving work efficiency.

[0017] 2. When wiring, the wire end of this utility model passes around the positioning pin. Then, by inserting a screwdriver into the cross groove of the connector and rotating the screw clockwise, the moving block can be moved to the right, causing the sliding column to slide in the groove of the pressure block. This forces the pressure block to move backward, pressing the wire tightly against the inner wall of the wiring groove, ensuring the firmness of the wire connection, effectively preventing loosening caused by vibration, and simplifying the wiring process, thus improving the efficiency and quality of wiring work.

[0018] 3. This utility model utilizes magnets on the back of the watch body and the front of the base to attract each other, automatically guiding the locking pins to accurately align with the round holes on the base. This allows the two locking pins to be smoothly inserted into the holes. When the locking pins align with their locking slots, the push block is released, and the compressed spring pushes the push block and locking pins back to the right, ensuring that the locking pins are precisely locked into their locking slots. This ensures a high success rate for installation and significantly reduces installation difficulty. Even in environments with limited space or poor visibility, it enables fast and accurate installation, greatly improving the convenience and reliability of the installation work. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the base, body, and pull rod of this utility model.

[0021] Figure 3 This is a three-dimensional structural diagram of the push block, locking post, and spring components of this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the watch body, pull rod, and sealing cover.

[0023] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the body, pull rod, and terminal block.

[0024] Figure 6 This is a three-dimensional structural diagram of the terminal block, positioning pin, and pressure block of this utility model.

[0025] Figure 7This is a three-dimensional structural diagram of the moving block, screw, and connector of this utility model.

[0026] Figure 8 This is a three-dimensional structural diagram of the components of this utility model, such as the sliding column, the moving block, and the screw.

[0027] Figure 9 This is a three-dimensional structural diagram of the base, body, and magnet of this utility model.

[0028] Component names and serial numbers in the diagram: 1. Base, 2. Meter body, 3. Pull rod, 4. Push block, 5. Snap-fit ​​post, 6. Snap-fit ​​post, 7. Spring, 8. Sealing cover, 9. Fixing screw, 10. Terminal block, 11. Positioning pin, 12. Pressure block, 13. Slide groove, 14. Slide column, 15. Moving block, 16. Screw, 17. Connector, 18. Magnet. Detailed Implementation

[0029] Example 1 An easy-to-install and disassemble electricity meter, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 9 As shown, the device includes a base 1, a meter body 2, a pull rod 3, a push block 4, a locking pin 5, a locking pin 6, a spring 7, a terminal block 10, and a positioning pin 11. Screw holes are symmetrically arranged on the upper and lower right sides of the base 1. The meter body 2 is placed on the front side of the base 1. The meter body 2 is a single-phase electronic energy meter, suitable for energy meters conforming to the GB / T17215 series standards. The external dimensions, terminal layout, and communication interfaces (such as RS-485, infrared, and carrier module) of the meter body 2 all follow the general design specifications of the aforementioned standards. A pull rod 3 is welded to the top side of the meter body 2, and a push block is slidably connected to the right side of the base 1. 4. The right rear part of the meter body 2 has symmetrically welded locking pins 5. The right front part of the base 1 has symmetrically opened round holes. Both locking pins 5 are inserted into the corresponding round holes. The left side of the push block 4 is inserted into the base 1 and has symmetrically welded locking pins 6. Both locking pins 5 have locking grooves on the side that are close to each other. Both locking pins 6 are locked into the corresponding locking grooves. A spring 7 connects the base 1 and the push block 4. The left front part of the meter body 2 is equipped with a terminal block 10 by screws. Multiple wiring slots are vertically distributed on the left side of the terminal block 10. A positioning pin 11 is welded to the rear side of each wiring slot.

[0030] like Figures 1-9As shown, it also includes a sealing cover 8 and a fixing screw 9. The sealing cover 8 is rotatably connected to the front left side of the meter body 2. The sealing cover 8 is made of transparent plastic, allowing for visual observation of the wiring connection of the terminal block 10 inside the meter body 2. Multiple wire inlet holes are vertically distributed on the left side of the sealing cover 8, and each wire inlet hole is located directly to the left of the corresponding wiring slot. A fixing screw 9 is threadedly connected between the upper left side of the meter body 2 and the top side of the sealing cover 8.

[0031] like Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, it also includes a pressure block 12, a sliding column 14, a moving block 15, a screw 16, a connector 17, and a magnet 18. Each wiring slot has a pressure block 12 slidably connected to its front side. Each pressure block 12 has a through hole, and each positioning pin 11 passes through the corresponding through hole. Each pressure block 12 has a sliding groove 13 on both the upper and lower sides. Each sliding groove 13 has a sliding column 14 slidably connected to its interior. Each pressure block 12 has a moving block 15 installed between the two sliding columns 14 in the two sliding grooves 13 by screws. Each moving block 15 slides in its corresponding wiring slot. Each wiring slot has a screw 16 rotatably connected to its interior. Each screw 16 is threadedly connected to its corresponding moving block 15. Each screw 16 has a connector 17 welded to its left end through the wiring seat 10. Each connector 17 has a cross groove on its left side. Magnets 18 are embedded in the rear side of the body 2 and the front side of the base 1 and are glued together. The two magnets 18 attract each other.

[0032] When this device is needed, first fix the base 1 to the wall or electrical box using screws through the screw holes. After fixing the base 1, the operator needs to push the push block 4 to the left, causing the two locking pins 6 to move to the left together. At this time, the spring 7 is compressed and deformed. Hold the pull rod 3 and move the meter body 2 towards the base 1 so that the back of the meter body 2 fits against the front of the base 1. At this time, the locking pins 5 begin to align with the round holes. In order to ensure accurate installation positioning, the magnets 18 on the back of the meter body 2 and the front of the base 1 will attract each other, guiding the meter body 2 to accurately fit against the base 1 and making the two locking pins 5 fully inserted into the corresponding round holes. When the two locking pins 6 move to align with the locking slots on the two locking pins 5, release the push block 4. At this time, the compressed spring 7 begins to reset, and the push block 4 and the locking pins 6 return to the right, so that the two locking pins 6 accurately lock into the corresponding locking slots, thereby firmly locking the meter body 2 onto the base 1.

[0033] Before wiring, loosen the fixing screw 9 and rotate the sealing cover 8 to open it, exposing the terminal block 10. Insert the wire ends into the wiring slots one by one, so that the wire ends pass around the positioning pin 11. Then, use a screwdriver to insert into the cross groove of the connector 17 and rotate the screw 16 clockwise to move the moving block 15 to the right in the wiring slot. The sliding column 14 slides backward inside the sliding groove 13 of the pressure block 12. Due to the guiding effect of the sliding groove 13, the rightward movement of the sliding column 14 will force the pressure block 12 to slide backward inside the wiring slot. The positioning pin 11 passes through the corresponding through hole, ensuring the stable movement of the pressure block 12 in the front and back directions without deflection. Finally, the pressure block 12 moves backward and presses the wire tightly against the inner wall of the wiring slot, achieving reliable fixing of the wire. After completing all wire connections, rotate the sealing cover 8 to the closed position, with each wire passing through the corresponding inlet hole, and tighten the fixing screw 9 to seal and protect the wiring part.

[0034] When it is necessary to disassemble the watch body 2, first unscrew the fixing screw 9 again and open the sealing cover 8. Then, use a screwdriver to insert into the cross groove, reverse the connector 17 to drive the screw 16 to rotate. At this time, the moving block 15 moves to the left, and the movement of the sliding column 14 drives the pressure block 12 to move forward and disengage from the positioning pin 11. When it moves to the front end, a notch opens between the pressure block 12 and the positioning pin 11, and the wire end can be removed from the positioning pin 11 and pulled out of the wiring slot. Then, the operator pushes the push block 4 to the left again. The push block 4 drives the two locking pins 6 to move to the left, so that they disengage from the locking slot of the locking pin 5. At the same time, the spring 7 is compressed again. At this time, the locking pin 5 is in a free state of unlocking in the round hole. The operator can then use the pull rod 3 to lift the watch body. The meter body 2 moves forward, causing the locking pin 5 to exit from the round hole in the base 1. During this process, the mutual attraction between the meter body 2 and the magnet 18 on the base 1 is overcome, and the meter body 2 is finally completely separated from the base 1. When the push block 4 is released, the spring 7 returns to its original position, and the push block 4 and the locking pin 6 on it return to the initial position to the left, waiting for the next installation. In this energy storage system, the entire energy meter can be installed on the AC side or the DC side to accurately measure key data such as the charging and discharging amount and the amount of electricity connected to the grid. Its communication interface (such as RS485, Modbus protocol) can be connected to Huawei's converter of this model to realize the data upload to the energy management system (EMS) to meet the system's needs for electricity metering and energy dispatch.

Claims

1. An easy-to-install and disassemble electricity meter, characterized in that, The device includes a base (1), a watch body (2), a pull rod (3), a push block (4), a locking pin (5), a locking pin (6), a spring (7), a terminal block (10), and a positioning pin (11). The base (1) has symmetrically arranged screw holes on its right side. The watch body (2) is placed at the front of the base (1). The pull rod (3) is fixedly connected to the top of the watch body (2). The push block (4) is slidably connected to the right side of the base (1). The locking pin (5) is symmetrically fixedly connected to the rear of the watch body (2). Two round holes are symmetrically arranged at the front of the base (1). The locking pins (5) are inserted into the corresponding round holes. The left side of the push block (4) is inserted into the base (1) and symmetrically fixedly connected to the locking pins (6). The two locking pins (5) are provided with locking grooves on one side. The two locking pins (6) are locked into the corresponding locking grooves. The base (1) and the push block (4) are connected by a spring (7). The front of the meter body (2) is fixedly connected to the terminal block (10). The left side of the terminal block (10) is vertically distributed with multiple wiring grooves. Each wiring groove is fixedly connected to a positioning pin (11).

2. The energy meter that is easy to assemble and disassemble according to claim 1, characterized in that, It also includes a sealing cap (8) and a fixing screw (9). The sealing cap (8) is rotatably connected to the front of the watch body (2), and the fixing screw (9) is threadedly connected between the left side of the watch body (2) and the top of the sealing cap (8).

3. The energy meter that is easy to assemble and disassemble according to claim 2, characterized in that, The sealing cover (8) has multiple inlet holes vertically distributed on the left side, and each inlet hole is located to the left of the corresponding wiring slot.

4. The easily detachable and assembleable electricity meter according to claim 3, characterized in that, It also includes a pressure block (12), a sliding column (14), a moving block (15), a screw (16), and a connector (17). Each wiring slot is slidably connected to a pressure block (12). Each pressure block (12) has a sliding groove (13) on both sides. Each sliding groove (13) is slidably connected to a sliding column (14). Each pressure block (12) has a moving block (15) fixedly connected between the two sliding columns (14) in the two sliding grooves (13). Each moving block (15) slides in the corresponding wiring slot. Each wiring slot is rotatably connected to a screw (16). Each screw (16) is threadedly connected to the corresponding moving block (15). Each screw (16) has a connector (17) fixedly connected to the left side of the wiring seat (10).

5. The energy meter that is easy to assemble and disassemble according to claim 4, characterized in that, Each pressure block (12) has a through hole.

6. The energy meter that is easy to assemble and disassemble according to claim 5, characterized in that, It also includes magnets (18), with magnets (18) embedded and fixedly connected to the rear of the body (2) and the front of the base (1).

7. The energy meter that is easy to assemble and disassemble according to claim 6, characterized in that, Each connector (17) has a cross groove on its left side.

8. The easily detachable electricity meter according to claim 7, characterized in that, The sealing cap (8) is made of transparent material.

9. The energy meter that is easy to assemble and disassemble according to claim 8, characterized in that, Each locating pin (11) passes through the corresponding through hole.

10. The easily detachable electricity meter according to claim 9, characterized in that, Two magnets (18) attract each other.

Images