Rail mounting structure of an electric energy meter

Abstract

The utility model belongs to the electric energy meter technical field, especially point to a guide rail mounting structure of electric energy meter. Including electric energy meter casing and the upper hook of being located at its back, the back of electric energy meter casing still is equipped with modularization buckle assembly, modularization buckle assembly includes: installation sliding plate, installation sliding plate is slidably connected with electric energy meter casing, and is fixedly connected through fastener after sliding to preset position, spring seat, is fixedly installed in installation sliding plate, buckle sliding block, is slidably connected with the back of electric energy meter casing, reset elastic part is connected between spring seat and buckle sliding block, wherein, buckle sliding block can cooperate with the upper hook of electric energy meter casing under the elastic action of reset elastic part and be fixed on the guide rail. The utility model discloses a guide rail type electric energy meter with modularization dismounting function through the above technical scheme buckle assembly.

Description

Technical Field

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

[0002] Rail-mounted energy meters are widely used in industrial, commercial, and building power distribution systems, and are typically installed and fixed using standard DIN rails. These meters generally have a hook and a movable clip structure on the back to facilitate quick installation and removal from the rail.

[0003] In existing rail-mounted energy meters, the latching assembly on the back is typically a single unit consisting of a sliding component and a resilient reset element directly embedded in a groove on the back of the casing. However, this structure presents several inconveniences in practical use: when the latching assembly experiences fatigue of the resilient reset element, breakage of the sliding component, or jamming failure due to prolonged use, the components are not independent modules and are deeply embedded inside the casing, making it difficult for maintenance personnel to replace the parts on-site. Sometimes, this even necessitates scrapping the entire energy meter casing, resulting in high maintenance costs and poor maintainability. Therefore, there is an urgent need for a rail-mounted energy meter with a modular latching assembly that allows for easy disassembly and reassembly. Utility Model Content

[0004] This invention solves the problems mentioned in the background section by setting up a modular buckle assembly consisting of a mounting slide, a spring seat, a buckle slider, and a reset elastic element, and by making the mounting slide slide into the energy meter housing and then fixing it with fasteners, thereby realizing the modular assembly and disassembly of the buckle assembly.

[0005] The technical solution of this utility model is implemented as follows: a guide rail mounting structure for an electricity meter includes an electricity meter housing and an upper hook disposed on its back. The back of the electricity meter housing also provides a modular buckle assembly, which includes:

[0006] The mounting plate is slidably engaged with the housing of the electricity meter and is fixedly connected by fasteners after sliding to a preset position.

[0007] Spring seat, fixed to the mounting slide plate;

[0008] The latching slider slides in conjunction with the back of the energy meter housing.

[0009] A reset elastic element is connected between the spring seat and the latch slider;

[0010] The latch slider, under the elastic action of the reset elastic element, can cooperate with the upper hook of the energy meter housing to be fixed on the guide rail.

[0011] The present invention is further configured such that the reset elastic element is a helical spring.

[0012] The present invention is further configured such that a groove is provided on the back of the energy meter housing, and a slider is provided on the mounting plate that slides in cooperation with the groove, and the mounting plate slides along the groove to a preset position via the slider.

[0013] The present invention is further configured such that guide ribs are provided on both sides of the buckle slider, and guide grooves are provided on the sliding groove on the back of the energy meter housing, and the guide ribs and guide grooves are slidably engaged.

[0014] The present invention is further configured such that the fastener is a screw, the mounting plate is provided with a countersunk hole, and the screw passes through the countersunk hole and is fixedly connected to a pre-set threaded hole on the energy meter housing.

[0015] The present invention is further configured such that the end of the slide groove is provided with a positioning step, and when the mounting slide slides to the preset position, its end abuts against the positioning step, so that the countersunk hole and the threaded hole are aligned.

[0016] The present invention is further configured such that the spring seat and the mounting slide are integrally injection molded structures.

[0017] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:

[0018] 1. By installing a sliding plate that slides into the electricity meter housing and is fixed by fasteners, the spring seat, the latch slider, and the reset elastic element are integrated into an independent module that can be disassembled as a whole, thus improving the maintainability of the latch assembly.

[0019] 2. By sliding the guide ribs on both sides of the snap-on slider with the guide groove of the snap-on slide on the back of the energy meter housing, the movement path of the snap-on slider and the assembly path of the mounting plate do not interfere with each other, thus improving the working reliability of the snap-on assembly.

[0020] 3. By sliding the slider of the mounting plate along the mounting track and using a positioning step to abut and limit the end of the mounting plate, the countersunk hole and the threaded hole are automatically aligned, which improves the assembly efficiency of the modular snap-fit ​​assembly. Attached Figure Description

[0021] Figure 1 This is a complete structural schematic diagram of the present invention;

[0022] Figure 2 This is an assembly diagram of the sliding plate installation method of this utility model;

[0023] Figure 3 This is a structural diagram of the snap-on slider at different positions of this utility model.

[0024] The attached figures are labeled as follows: 1. Energy meter housing; 2. Upper hook; 3. Modular snap-fit ​​assembly; 30. Mounting slide plate; 31. Fastener; 32. Spring seat; 33. Snap-fit ​​slider; 34. Reset elastic element; 4. Mounting slide; 5. Slider; 6. Guide rib; 7. Guide groove; 8. Countersunk hole; 9. Threaded hole; 10. Positioning step. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :

[0026] Example 1:

[0027] This embodiment provides a rail mounting structure for an electricity meter, including an electricity meter housing 1 and an upper hook 2 disposed on its back. The back of the electricity meter housing 1 is also provided with a modular buckle assembly 3, which includes:

[0028] The mounting slide plate 30 slides in conjunction with the energy meter housing 1 and is fixedly connected by fasteners 31 after sliding to a preset position.

[0029] Spring seat 32 is fixed to the mounting slide plate 30;

[0030] The snap-on slider 33 is slidably engaged with the back of the energy meter housing 1;

[0031] The reset elastic element 34 is connected between the spring seat 32 and the snap-fit ​​slider 33;

[0032] The latching slider 33, under the elastic action of the reset elastic member 34, can cooperate with the upper hook 2 of the energy meter housing 1 to be fixed on the guide rail.

[0033] This utility model provides a guide rail mounting structure for an electricity meter, including an electricity meter housing 1. An upper hook 2 is provided on the back of the electricity meter housing 1 for hooking onto the upper edge of a standard DIN guide rail from above. The back of the electricity meter housing 1 also features a modular snap-fit ​​assembly 3 that can be disassembled as a whole. This modular snap-fit ​​assembly 3 consists of four parts: a mounting plate 30, a spring seat 32, a snap-fit ​​slider 33, and a reset elastic element 34.

[0034] The mounting slide plate 30 is a plate-shaped component that supports the remaining parts of the modular snap-fit ​​assembly 3 and serves as a carrier for connecting and disassembling with the electricity meter housing 1. The mounting slide plate 30 can be slidably installed onto the back of the electricity meter housing 1. After sliding to a preset installation position, it is detachably fixed to the electricity meter housing 1 by fasteners 31. In one specific structure, a recessed mounting track 4 is provided on the back of the electricity meter housing 1. A slider 5, integrally formed on the surface of the mounting slide plate 30, has a shape matching the cross-sectional shape of the mounting track 4. The slider 5 is embedded in the mounting track 4 and can slide along the extension direction of the mounting track 4, thereby guiding the mounting slide plate 30 accurately to the preset position. To confirm this preset position, an inwardly protruding positioning step 10 is integrally formed at the end of the mounting track 4. When the mounting slide plate 30 slides to the point where its end abuts against the positioning step 10, the mounting slide plate 30 reaches the preset position and cannot slide further forward. At this point, the countersunk hole 8 pre-drilled on the mounting plate 30 is precisely aligned with the threaded hole 9 pre-drilled on the back of the energy meter housing 1. The operator can then pass the screw, which serves as the fastener 31, through the countersunk hole 8 and screw it into the threaded hole 9. The head of the screw is completely recessed into the countersunk hole 8 and does not protrude from the surface of the mounting plate 30, thereby firmly locking the entire modular snap-fit ​​assembly 3 in the working position. In another optional embodiment, the fastener 31 can also use a snap-fit ​​structure instead of a screw: that is, a hook and a slot are respectively provided at the corresponding preset positions on the mounting plate 30 and the back of the energy meter housing 1. When the mounting plate 30 slides to the preset position, the hook automatically engages with the slot, achieving a push-in quick locking, and the fixed assembly can be completed without the aid of tools.

[0035] The spring seat 32 is fixedly mounted on the surface of the mounting slide 30, located on the outer side of the mounting slide 30, and its function is to provide a fixed support base for the reset elastic element 34. In a preferred embodiment, the spring seat 32 and the mounting slide 30 are integrally injection molded, and the two are an inseparable integral plastic part, which reduces the number of parts and improves the overall strength of the structure.

[0036] The reset elastic element 34 is an elastic component that can return to its original shape after the external force is removed, and it is connected between the spring seat 32 and the latching slider 33. In one specific embodiment, the reset elastic element 34 is a helical spring. In another optional embodiment, the reset elastic element 34 can also be a wave spring. The spring seat 32 and the latching slider 33 have limit slots at their opposite ends, and the two ends of the helical reset spring are respectively inserted into the limit slots on both sides to achieve axial positioning assembly; after assembly, the helical reset spring is in a pre-compressed state and can continuously apply an elastic pushing force towards the locking direction to the latching slider 33. After the external force pulls the latching slider 33 to displace and compress the spring, the external force is removed, and the latching slider 33 can automatically reset by relying on the spring's own elastic force.

[0037] The latching slider 33 is a reciprocating sliding component. Its function is to engage with the upper hook 2 on the energy meter housing 1 under the drive of elastic force, thereby locking the lower edge of the guide rail. The latching slider 33 is slidably engaged in a designated area on the back of the energy meter housing 1. Specifically, a latching slide is provided on the back of the energy meter housing 1 to accommodate and guide the latching slider 33. The extension direction of the latching slide is consistent with the direction in which the latching slider 33 needs to move to lock or release the guide rail. A guide groove 7 is provided on each side wall of the latching slide. Correspondingly, a guide rib 6 is integrally formed on each side edge of the latching slider 33. The cross-sectional shape of the guide rib 6 matches the cross-sectional shape of the guide groove 7 and is embedded in the guide groove 7 to form a sliding engagement relationship. Specifically, the mounting slide 4 and the snap-on slide on the back of the electricity meter housing 1 extend in the same direction and are parallel to each other. The mounting slide 4 is located on one side of the snap-on slide, and the two are offset vertically on the back of the housing, so that the sliding of the mounting plate 30 along the mounting slide 4 and the movement of the snap-on slider 33 along the snap-on slide are completely separated in space and do not affect each other. Thus, the extending directions of the guide rib 6 and the guide groove 7 are parallel to the extending direction of the mounting slide 4 of the aforementioned mounting plate 30, ensuring that the snap-on slider 33 will not obstruct the mounting plate 30 during the entire process of pushing it into the back of the electricity meter housing 1, and vice versa.

[0038] During the installation of the modular snap-fit ​​assembly 3, the operator holds the assembly as a whole and aligns the slider 5 of the mounting plate 30 with the entrance of the mounting slide 4 on the back of the energy meter housing 1, pushing it inward. During this process, the guide ribs 6 on both sides of the snap-fit ​​slider 33 simultaneously enter the guide groove 7 of the snap-fit ​​slide from the side. When the end of the mounting plate 30 abuts against the positioning step 10 at the end of the mounting slide 4, the slider 5 can no longer move forward, and the mounting plate 30 reaches the preset position. At this point, the countersunk hole 8 and the threaded hole 9 are precisely aligned, and the guide ribs 6 are fully engaged in their working positions within the guide groove 7. Then, tightening the screws secures the entire assembly to the energy meter housing 1. At this time, the snap-fit ​​slider 33 is in its normal position under the elastic force of the coil spring. When the energy meter is hooked onto the guide rail via the upper hook 2, pressing down and releasing it causes the snap-fit ​​slider 33 to press against the lower edge of the guide rail under the elastic force, completing a stable guide rail fixation.

[0039] When any part of the modular snap-fit ​​assembly 3 needs to be repaired or replaced, simply loosen and remove the screws, pinch the mounting slide plate 30 and pull it outwards. The mounting slide plate 30, together with the spring seat 32 fixed thereon, the reset elastic element 34 connecting the two, and the snap-fit ​​slider 33, can be separated from the electricity meter housing 1 as a whole module without disassembling any other structure of the electricity meter itself. The operation process is simple and quick.

[0040] 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. A rail mounting structure of an electric energy meter comprising an electric energy meter housing (1) and an upper hook (2) provided at the back thereof, characterized in that, The back of the energy meter housing (1) is also provided with a modular buckle assembly (3), the modular buckle assembly (3) including: The mounting plate (30) is slidably engaged with the energy meter housing (1) and is fixedly connected by fasteners (31) after sliding to a preset position; Spring seat (32) is fixed to the mounting plate (30); The snap-on slider (33) is slidably engaged with the back of the energy meter housing (1); The reset elastic element (34) is connected between the spring seat (32) and the snap-fit ​​slider (33); The latch slider (33) can be engaged with the upper hook (2) of the energy meter housing (1) to be fixed on the guide rail under the elastic action of the reset elastic member (34).

2. The rail mounting structure of an electric energy meter according to claim 1, wherein The reset elastic element (34) is a helical spring.

3. The rail mounting structure of an electric energy meter according to claim 1, wherein The back of the energy meter housing (1) is provided with an installation slide (4), and the installation slide plate (30) is provided with a slider (5) that slides in cooperation with the installation slide (4). The installation slide plate (30) slides along the installation slide (4) to a preset position via the slider (5).

4. The guide rail mounting structure for an electricity meter according to claim 1, characterized in that, The buckle slider (33) is provided with guide ribs (6) on both sides, and the buckle slide on the back of the energy meter housing (1) is provided with guide grooves (7) respectively. The guide ribs (6) and the guide grooves (7) are slidably engaged.

5. The guide rail mounting structure for an electricity meter according to claim 1, characterized in that, The fastener (31) is a screw, and the mounting plate (30) is provided with a countersunk hole (8). The screw passes through the countersunk hole (8) and is fixedly connected to the threaded hole (9) on the energy meter housing (1).

6. The guide rail mounting structure for an electricity meter according to claim 3, characterized in that, The end of the mounting slide (4) is provided with a positioning step (10). When the mounting slide (30) slides to the preset position, its end abuts against the positioning step (10), so that the countersunk hole (8) and the threaded hole (9) are aligned.

7. The guide rail mounting structure for an electricity meter according to claim 1, characterized in that, The spring seat (32) and the mounting plate (30) are integrally injection molded structures.

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