An electric energy meter having a hinged rail mounting structure

The design of the articulated rail mounting structure solves the problems of large space occupation and inconvenience in carrying the rail mounting structure of the electricity meter, and realizes convenient installation, disassembly and efficient operation and maintenance.

CN224553348UActive Publication Date: 2026-07-24ZHEJIANG WANKANG ELECTRICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG WANKANG ELECTRICAL TECH CO LTD
Filing Date
2026-06-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing rail mounting structure of electricity meters is an integrated fixed plate, which makes it space-consuming, easy to damage and inconvenient for maintenance personnel to carry and store, thus affecting maintenance efficiency.

Method used

It adopts a hinged structure design, and the upper and lower base plates can be folded through the hinge structure. Combined with the magnetic suction component, the ends are interlocked in the folded state, and the rotation angle is limited by the limiting structure. With the bolt connection, it can be easily installed and disassembled.

Benefits of technology

It improves the storage portability and maintenance efficiency of electricity meters, enhances the structural rigidity in the unfolded state, and simplifies installation and disassembly operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of electric energy meter, and relates to an electric energy meter with hinged guide rail mounting structure, which comprises: an installation base plate, which is detachably connected to the back of the electric energy meter, the installation base plate comprises an upper base plate and a lower base plate hinged through a hinge structure and can rotate relatively between an unfolded state and a folded state; an upper fixed clamping hook, which is arranged at the free end of the upper base plate and is used for clamping one side edge of the guide rail; a sliding block, which is slidably connected to the lower base plate and is provided with a lower movable clamping hook on the sliding block and is used for clamping the other side edge of the guide rail; and a magnetic attraction assembly, which comprises a first magnetic attraction part and a second magnetic attraction part arranged at the free ends of the upper base plate and the lower base plate respectively, and the two magnetic attraction parts are magnetically attracted and matched to realize end interlocking in the folded state. The electric energy meter guide rail mounting structure can be folded and stored and is convenient to carry through the above technical scheme.
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Description

Technical Field

[0001] This utility model belongs to the field of electricity meter technology, and relates to an electricity meter with a hinged guide rail mounting structure. Background Technology

[0002] Rail-mounted energy meters are widely used energy metering devices in power systems. They are fixed to standard DIN rails via a rail mounting structure and are widely used for energy metering and management in industrial power distribution, commercial buildings, and residential communities. They are characterized by convenient installation and neat layout.

[0003] Currently, most electricity meters use a single, rigid, one-piece mounting plate structure for their rail mounting. In power maintenance, emergency repairs, and temporary metering scenarios, maintenance personnel need to carry multiple spare mounting structures. These disparate plates not only take up a lot of space and are inconvenient to store and carry, but they are also prone to damage to the locking components or loss due to bumps, affecting maintenance efficiency. Therefore, there is an urgent need for a foldable, portable electricity meter rail mounting structure. Utility Model Content

[0004] This invention sets the mounting base plate as an upper base plate and a lower base plate that are hinged together by a hinge structure, so that they can rotate relative to each other between the unfolded state and the folded state. Magnetic suction components are set at the free ends of the two base plates to achieve end interlocking in the folded state, so as to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: an energy meter with a hinged guide rail mounting structure includes: The mounting base plate is detachably connected to the back of the energy meter. The mounting base plate includes an upper base plate and a lower base plate that are hinged together by a hinge structure and can rotate relative to each other between an unfolded state and a folded state. An upper fixing hook is provided at the free end of the upper base plate and is used to engage one side edge of the guide rail; A slider is slidably connected to the lower base plate, and the slider is provided with a lower movable hook for engaging the other edge of the guide rail; The magnetic attraction assembly includes a first magnetic attraction part and a second magnetic attraction part respectively disposed at the free ends of the upper substrate and the lower substrate. When folded, the two magnetic attraction parts are engaged to achieve end interlocking.

[0006] The present invention is further provided that the hinge ends of the upper substrate and the lower substrate are provided with mutually cooperating limiting structures to restrict the relative rotation of the upper substrate and the lower substrate to exceed the unfolded state.

[0007] The present invention is further configured such that the limiting structure includes a limiting block protruding from the hinge end of the upper substrate and a limiting groove formed at the hinge end of the lower substrate, wherein when in the unfolded state, the limiting block is embedded in the limiting groove.

[0008] The present invention is further configured such that the first magnetic attraction part is a permanent magnet embedded in the free end of the upper substrate, and the second magnetic attraction part is a magnetic conductor embedded in the free end of the lower substrate, wherein the surfaces of the permanent magnet and the magnetic conductor are flush with the end face of the corresponding substrate.

[0009] The present invention is further provided that the mounting base plate has a plurality of through mounting holes for inserting bolts to detachably fix the mounting base plate to the back of the electricity meter.

[0010] The present invention is further provided with a pull part at the end of the slider away from the upper fixed hook, which is used to pull the slider to disengage the lower movable hook from the guide rail.

[0011] The present invention is further configured such that the hinge structure consists of two parallel hinges.

[0012] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. Folding is achieved by hinged connection between the upper and lower substrates, and the ends are interlocked in the folded state by magnetic components, which improves the storage and portability.

[0013] 2. The rotation angle of the substrate is limited by the limiting structure of the hinge ends, which improves the structural rigidity in the unfolded state.

[0014] 3. The installation of through holes and bolt connections, along with the addition of a pull handle on the slider, improves the ease of installation and disassembly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a front structural diagram of the present invention; Figure 3 This is a schematic diagram of the back structure of this utility model.

[0016] The reference numerals in the figure are as follows: 1. Energy meter; 2. Mounting base plate; 20. Upper base plate; 21. Lower base plate; 3. Hinge structure; 30. Hinge; 4. Upper fixed hook; 5. Slider; 6. Lower movable hook; 7. Magnetic suction assembly; 70. First magnetic suction part; 71. Second magnetic suction part; 8. Limiting structure; 80. Limiting block; 81. Limiting groove; 9. Mounting through hole; 10. Hand pull part. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 : Example 1:

[0018] This embodiment provides an energy meter with a hinged rail mounting structure, including: Mounting base plate 2 is detachably connected to the back of the energy meter 1. The mounting base plate 2 includes an upper base plate 20 and a lower base plate 21 hinged by a hinge structure 3, which can rotate relative to each other between the unfolded state and the folded state. The upper fixing hook 4 is located at the free end of the upper base plate 20 and is used to engage one side edge of the guide rail; The slider 5 is slidably connected to the lower base plate 21. The slider 5 is provided with a lower movable hook 6 for engaging the other edge of the guide rail. The magnetic suction assembly 7 includes a first magnetic suction part 70 and a second magnetic suction part 71 respectively disposed at the free ends of the upper substrate 20 and the lower substrate 21. When folded, the two magnetically engage to achieve end interlocking.

[0019] This embodiment provides an energy meter with a hinged rail mounting structure for detachably mounting the energy meter 1 onto a standard rail. The mounting structure is generally rectangular and mainly consists of a mounting base plate 2, an upper fixed hook 4, a slider 5, a lower movable hook 6, and a magnetic suction assembly 7.

[0020] Mounting base plate 2 is the basic component that supports all other parts. It is rectangular flat plate in shape and is used to connect to the back of the electricity meter 1 and provide installation support. Mounting base plate 2 is divided into two parts: upper base plate 20 and lower base plate 21. The upper base plate 20 and lower base plate 21 are basically the same in shape and size. They are connected to each other by hinge structure 3 and can rotate relative to each other between the folded and unfolded states.

[0021] The hinge structure 3, used to enable relative rotation between the upper substrate 20 and the lower substrate 21, consists of two parallel hinges 30. The two hinges 30 are respectively positioned on both sides of the hinge end of the mounting substrate 2, and each hinge 30 passes through the hinge ends of both the upper substrate 20 and the lower substrate 21, allowing the upper substrate 20 and the lower substrate 21 to rotate around the axis of the hinge 30. Specifically, each hinge 30 is a cylindrical metal pin, with both ends fixed to the side of the substrate by hot riveting and flanging to prevent the pin from falling off; the center lines of both pins coincide with the thickness center lines of the upper substrate 20 and the lower substrate 21, ensuring that the back sides of the two substrates can completely fit together when folded.

[0022] The limiting structure 8 restricts the rotation range of the upper substrate 20 and the lower substrate 21, and provides rigid support in the unfolded state, so that the separate upper substrate 20 and lower substrate 21 form a rigid structure equivalent to the whole plate, preventing them from rotating relative to each other beyond the unfolded state. The limiting structure 8 includes a limiting block 80 and a limiting groove 81. The limiting block 80 is protruding from the hinge end face of the upper substrate 20, and the limiting groove 81 is formed on the hinge end face of the lower substrate 21, corresponding to the limiting block 80. When the mounting substrate 2 is unfolded to a flat state, the limiting block 80 is embedded in the limiting groove 81, preventing the upper substrate 20 and the lower substrate 21 from continuing to rotate in the same direction.

[0023] The upper fixing hook 4 is used to engage one side edge of the guide rail, achieving initial fixation between the mounting structure and the guide rail. The upper fixing hook 4 has a hook-shaped structure and is integrally formed on the free end of the upper base plate 20 away from the hinge end. The opening direction faces the front of the mounting base plate 2, and it can hook the upper edge of the guide rail.

[0024] The slider 5, which supports the lower movable hook 6 and enables its sliding movement, has a rectangular block structure and is slidably connected to the front side of the lower base plate 21. The slider 5 can reciprocate along the length of the lower base plate 21, thereby causing the lower movable hook 6 to move closer to or away from the upper fixed hook 4. Specifically, the front side of the lower base plate 21 has two parallel grooves extending along its length, and the back side of the slider 5 has two corresponding ribs embedded in the grooves, allowing the slider 5 to reciprocate along the length of the grooves. An elastic element is provided between the slider 5 and the lower base plate 21; one end of the elastic element abuts against the end of the slider 5, and the other end abuts against the inner wall of the lower base plate 21, providing an inward restoring force to the slider 5.

[0025] The lower movable hook 6 is used to engage the other edge of the guide rail, and works with the upper fixed hook 4 to securely fix the mounting structure to the guide rail. The lower movable hook 6 has a hook-shaped structure and is integrally formed on the side of the slider 5 facing the hinge end. Its opening direction is opposite to that of the upper fixed hook 4, and it can hook the lower edge of the guide rail.

[0026] The magnetic suction assembly 7 is used to interlock the ends of the upper substrate 20 and the lower substrate 21 in the folded state, preventing them from unfolding on their own during transport. The magnetic suction assembly 7 includes a first magnetic suction part 70 and a second magnetic suction part 71. The first magnetic suction part 70 is embedded inside the free end of the upper substrate 20, and the second magnetic suction part 71 is embedded inside the free end of the lower substrate 21; their positions correspond to each other. When the mounting substrate 2 is in the folded state, the first magnetic suction part 70 and the second magnetic suction part 71 magnetically engage with each other, fixing the free ends of the upper substrate 20 and the lower substrate 21 together.

[0027] The first magnetic attraction part 70 is a permanent magnet, with an overall block structure, and is completely embedded inside the free end of the upper substrate 20, with its outer surface flush with the end face of the upper substrate 20. The second magnetic attraction part 71 is a magnetic conductor, with an overall block structure, and is completely embedded inside the free end of the lower substrate 21, with its outer surface flush with the end face of the lower substrate 21.

[0028] The mounting through holes 9 are used to achieve a detachable connection between the mounting base plate 2 and the back of the energy meter 1. Multiple mounting through holes 9 are respectively provided inside the upper base plate 20 and the lower base plate 21. The positions of the mounting through holes 9 correspond to the positions of the mounting holes on the back of the energy meter 1. Bolts can pass through the mounting through holes 9 and be screwed into the mounting holes on the back of the energy meter 1 to fix the mounting base plate 2 to the back of the energy meter 1.

[0029] The pull part 10 is used to facilitate the operator to pull the slider 5, thereby disengaging the lower movable hook 6 from the guide rail. The pull part 10 is located at the end of the slider 5 away from the upper fixed hook 4, and has a hole-like structure. The operator can hook the pull part 10 with their fingers or tools and pull it outward to make the slider 5 slide.

[0030] In use, the mounting structure is first unfolded from its folded state. The operator overcomes the magnetic force of the magnetic component 7 and rotates the upper substrate 20 and lower substrate 21 to both sides until they are fully unfolded and flat. At this point, the limiting block 80 is embedded in the limiting groove 81, preventing the upper substrate 20 and lower substrate 21 from rotating further, thus keeping the mounting substrate 2 a rigid flat plate. Next, the mounting substrate 2 is fixed to the back of the energy meter 1. The back of the mounting substrate 2 is placed against the back of the energy meter 1, aligning the mounting through hole 9 with the mounting hole on the back of the energy meter 1. Then, the bolt is passed through the mounting through hole 9 and screwed into the mounting hole on the back of the energy meter 1, completing the connection between the mounting structure and the energy meter 1. The energy meter 1 is then installed onto the guide rail. The upper fixing hook 4 is hooked onto the upper edge of the guide rail, and then the lower part of the energy meter 1 is pressed inward, causing the inclined surface of the lower movable hook 6 to contact and be compressed against the lower edge of the guide rail, thus causing the slider 5 to slide outward. After the lower movable hook 6 passes the lower edge of the guide rail, the slider 5 rebounds inward under the action of the internal elastic element, so that the lower movable hook 6 hooks the lower edge of the guide rail, thus completing the installation of the energy meter 1.

[0031] When it is necessary to disassemble the electricity meter 1, the operator pinches the pull handle 10 with their fingers and pulls it outward, causing the slider 5 to slide outward, so that the lower movable hook 6 disengages from the lower edge of the guide rail. Then, the lower part of the electricity meter 1 is rotated outward, so that the upper fixed hook 4 disengages from the upper edge of the guide rail, and the electricity meter 1 can be removed from the guide rail.

[0032] When storage and portability are required, first remove the mounting structure from the back of the electricity meter 1. Unscrew the fixing bolts to separate the mounting base plate 2 from the electricity meter 1. Then fold the upper base plate 20 and the lower base plate 21 inwards so that their backs are pressed together. When folded to the fully closed state, the first magnetic suction part 70 and the second magnetic suction part 71 magnetically attract each other, fixing the free ends of the upper base plate 20 and the lower base plate 21 together to prevent them from unfolding on their own. At this time, the volume of the mounting structure is reduced to half of its original size, making it easy to store and carry.

[0033] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An energy meter with a hinged guide rail mounting structure, characterized in that, include: Mounting base plate (2) is detachably connected to the back of the energy meter (1). The mounting base plate (2) includes an upper base plate (20) and a lower base plate (21) hinged by a hinge structure (3), which can rotate relative to each other between the unfolded state and the folded state. The upper fixing hook (4) is provided at the free end of the upper base plate (20) and is used to engage one side edge of the guide rail; The slider (5) is slidably connected to the lower base plate (21), and the slider (5) is provided with a lower movable hook (6) for engaging the other edge of the guide rail; The magnetic suction assembly (7) includes a first magnetic suction part (70) and a second magnetic suction part (71) respectively disposed at the free ends of the upper substrate (20) and the lower substrate (21). When folded, the two magnetically engage to achieve end interlocking.

2. The energy meter with a hinged guide rail mounting structure according to claim 1, characterized in that, The hinge ends of the upper substrate (20) and the lower substrate (21) are provided with mutually cooperating limiting structures (8) to restrict the upper substrate (20) and the lower substrate (21) from rotating relative to each other to the unfolded state.

3. An energy meter with a hinged guide rail mounting structure according to claim 2, characterized in that, The limiting structure (8) includes a limiting block (80) protruding from the hinge end of the upper substrate (20) and a limiting groove (81) opened at the hinge end of the lower substrate (21). When in the unfolded state, the limiting block (80) is embedded in the limiting groove (81).

4. An energy meter with a hinged guide rail mounting structure according to claim 1, characterized in that, The first magnetic attraction part (70) is a permanent magnet embedded in the free end of the upper substrate (20), and the second magnetic attraction part (71) is a magnetic conductor embedded in the free end of the lower substrate (21). The surfaces of the permanent magnet and the magnetic conductor are flush with the end face of the corresponding substrate.

5. An energy meter with a hinged guide rail mounting structure according to claim 1, characterized in that, The mounting base plate (2) has multiple through mounting holes (9) for inserting bolts to detachably fix the mounting base plate (2) to the back of the energy meter (1).

6. An energy meter with a hinged guide rail mounting structure according to claim 1, characterized in that, The slider (5) has a pull part (10) at one end away from the upper fixed hook (4), which is used to pull the slider (5) to disengage the lower movable hook (6) from the guide rail.

7. An energy meter with a hinged guide rail mounting structure according to claim 1, characterized in that, The hinge structure (3) consists of two parallel hinges (30).