A dustproof shell for a single-phase electric energy meter and a DIN rail mounting structure thereof

Abstract

The utility model discloses a dustproof shell and DIN rail mounting structure for single-phase electric energy meter, including the top cover of welding in the front side of electric meter box, the top cover is located the top of electric meter box front side, the front side of electric meter box is equipped with the guide slide rail, and the electric meter box is slidably connected with the apron through the guide slide rail, the inner chamber of apron is welded with two hollow members, the inner chamber of two hollow members is slidably connected with rectangular piece, and the spring piece is welded between rectangular piece and hollow member inner chamber, the surface of top cover is opened with two rectangular grooves, and the surface of rectangular piece is slidably connected in the inner chamber of rectangular groove, and the utility model discloses the rebound of spring piece pushes rectangular piece to enter the inner chamber of rectangular groove when the position of rectangular piece and the position of rectangular groove are aligned by pushing apron upwards, and then makes apron get spacing effect, can reach the effect that the top of slide rail is sheltered, and then reduces the massive accumulation of dust, causes the purpose of subsequent slide rail obstruction.

Description

Technical Field

[0001] This utility model belongs to the technical field of electricity meter accessories, and in particular relates to a dustproof housing for a single-phase electricity meter and its DIN rail mounting structure. Background Technology

[0002] A single-phase meter box is a special enclosure used to install a single-phase electricity meter (suitable for 220V single-phase AC power) and related electrical components. It is mainly used in low-power electricity consumption scenarios such as residential homes and small shops, and is one of the core devices for power metering, circuit protection and power management.

[0003] The sliding rail type meter box cover is an opening and closing structure design for meter boxes. It is installed horizontally or vertically via sliding rails to achieve the sliding opening and closing of the cover. Compared with the flip-top type, its design focuses more on the ease of operation. To facilitate the opening and closing of the cover, the top of the sliding rail is often designed to unfold, which can cause dust to accumulate on the surface of the sliding rail. To address this, a dustproof housing and its DIN rail mounting structure for single-phase energy meters have been designed. This structure adds a top cover at the top of the front side of the meter box, which can effectively shield the top of the sliding rail, thereby reducing the large amount of dust accumulation and preventing subsequent blockage of the sliding rail. Utility Model Content

[0004] The purpose of this invention is to provide a dustproof housing for a single-phase electricity meter and its DIN rail mounting structure, which has the effect of shielding the top of the slide rail, thereby reducing the accumulation of dust and preventing subsequent blockage of the slide rail, thus solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A dustproof housing for a single-phase electricity meter and its DIN rail mounting structure, which includes a top cover welded to the front side of the meter box: the top cover is located on the top of the front side of the meter box, a guide rail is installed on the front side of the meter box, a cover plate is slidably connected to the meter box through the guide rail, two hollow parts are welded to the inner cavity of the cover plate, a rectangular part is slidably connected to the inner cavity of each of the two hollow parts, a spring sheet is welded between the rectangular part and the inner cavity of the hollow part, two rectangular grooves are opened on the surface of the top cover, and the surface of the rectangular part is slidably connected to the inner cavity of the rectangular groove.

[0006] Preferably, the inner cavity of the cover plate is connected to two helical tubes, and the surface of the top cover has two screw holes.

[0007] Preferably, the screw hole and the inner cavity of the screw are connected by a common thread, and the top of the rectangular part is provided with a bevel.

[0008] Preferably, the bottom of the top cover has an inner inclined surface, and the surface of the inclined surface and the inner cavity of the inner inclined surface are slidably connected.

[0009] Preferably, limit blocks are welded to both the left and right sides of the rectangular part, and limit grooves are formed on both the left and right sides of the inner cavity of the hollow part.

[0010] Preferably, the surface of the limiting block is slidably connected to the inner cavity of the limiting groove, and a single-phase meter is installed in the inner cavity of the meter box.

[0011] The beneficial effects of this utility model are: 1. This utility model pushes the cover plate upwards. When the position of the rectangular piece is aligned with the position of the rectangular groove, the rebound force of the spring plate pushes the rectangular piece into the inner cavity of the rectangular groove, thereby limiting the cover plate and achieving the effect of blocking the top of the slide rail, thus reducing the accumulation of dust and preventing subsequent blockage of the slide rail. 2. By using the combination of the inclined surface and the inner inclined surface, the top of the rectangular part can receive an inward contraction force when it contacts the bottom of the top cover, which makes it easier for the rectangular part to retract back into the inner cavity of the hollow part. 3. By setting a limiting block, this utility model can provide a linear limiting and guiding force for the rectangular part during the sliding process inside the hollow part, thus preventing the rectangular part from tilting during the sliding process. Attached Figure Description

[0012] in: Figure 1 This is a front view schematic diagram of one embodiment of the present utility model; Figure 2 This is a schematic diagram showing the unfolded form of one embodiment of the present invention; Figure 3 This is a schematic diagram of the inner cavity of the cover plate according to one embodiment of the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the cover plate according to an embodiment of the present utility model; Figure 5 This is one embodiment of the present utility model. Figure 4 A magnified view of point A in the middle.

[0013] The attached diagram lists the components represented by each number as follows: 1. Meter box, 2. Top cover, 3. Guide rail, 4. Cover plate, 5. Hollow part, 6. Rectangular part, 7. Spring plate, 8. Rectangular groove, 9. Screw tube, 10. Screw hole, 11. Screw, 12. Bevel, 13. Inner bevel, 14. Limit block, 15. Single-phase meter. Detailed Implementation

[0014] In the following description, embodiments of the dustproof rail-mounted single-phase meter housing structure of this utility model will be described with reference to the accompanying drawings. Example 1

[0015] Figure 1-5 This invention illustrates a dustproof guide rail mounting structure for a single-phase electricity meter housing according to an embodiment of the present invention. It includes a top cover 2 welded to the front side of the meter box 1. The top cover 2 is located on the top of the front side of the meter box 1. A guide rail 3 is mounted on the front side of the meter box 1. A cover plate 4 is slidably connected to the meter box 1 via the guide rail 3. Two hollow parts 5 are welded to the inner cavity of the cover plate 4. A rectangular part 6 is slidably connected to the inner cavity of each hollow part 5. A spring plate 7 is welded between the rectangular part 6 and the inner cavity of the hollow part 5. Two rectangular grooves 8 are opened on the surface of the top cover 2. The surface of the rectangular part 6 is slidably connected to the rectangular part 8. The inner cavity of the groove 8 and the inner cavity of the cover plate 4 are connected to two screw tubes 9. The surface of the top cover 2 has two screw holes 10. The screw holes 10 and the inner cavity of the screw 11 are connected to the screw 11 by a common thread. The top of the rectangular part 6 has a bevel 12 and the bottom of the top cover 2 has an inner bevel 13. The surface of the bevel 12 and the inner cavity of the inner bevel 13 are slidably connected. Through the cooperation of the bevel 12 and the inner bevel 13, the top of the rectangular part 6 can get an inward contraction force when it contacts the bottom of the top cover 2, which can make the rectangular part 6 more convenient to retract back into the inner cavity of the hollow part 5. Example 2

[0016] Figure 1-5 This invention illustrates a dustproof guide rail mounting structure for a single-phase electricity meter housing according to an embodiment of the present invention. It includes a top cover 2 welded to the front side of a meter box 1. The top cover 2 is located at the top of the front side of the meter box 1. A guide rail 3 is mounted on the front side of the meter box 1. A cover plate 4 is slidably connected to the meter box 1 via the guide rail 3. Two hollow parts 5 are welded to the inner cavity of the cover plate 4. A rectangular part 6 is slidably connected to the inner cavity of each of the two hollow parts 5. A spring sheet 7 is welded between the rectangular part 6 and the inner cavity of the hollow part 5. Two rectangular grooves 8 are opened on the surface of the top cover 2. The surface of the rectangular part 6 is slidably connected to the inner cavity of the rectangular groove 8. The rectangular part 6 has limit blocks 14 welded on both sides. The hollow part 5 has limit grooves on both sides of its inner cavity. The surface of the limit block 14 is slidably connected to the inner cavity of the limit groove. By setting the limit block 14, the rectangular part 6 can obtain a linear limiting and guiding force during the sliding process of the hollow part 5, which can prevent the rectangular part 6 from tilting during the sliding process. The inner cavity of the meter box 1 is equipped with a single-phase meter 15. The sliding rail type meter box is an existing technology. For example, there are existing products in Shangmei Mall, Guannan Qingyuan Decoration and Chunshiguang Furniture.

[0017] Working principle: When using this utility model, the user welds a top cover 2 to the front of the meter box 1, covering the surface of the cover plate 4, thereby blocking the top of the guide rail 3. Then, the user pushes the cover plate 4 upward to slide it upward. When the inclined surface 12 on the surface of the rectangular part 6 contacts the inner wall of the inner inclined surface 13, the continuous upward pushing force causes the rectangular part 6 to be squeezed inward, and then squeezed into the inner cavity of the hollow part 5. Then, when the position of the rectangular part 6 is aligned with the position of the rectangular groove 8, the rebound force of the spring plate 7 pushes the rectangular part 6 into the inner cavity of the rectangular groove 8, thereby limiting the cover plate 4. Then, the top cover 2 and the cover plate 4 are further fixed with screws 11, which can block the top of the rail, thereby reducing the accumulation of dust and preventing subsequent rail blockage.

[0018] In summary: This dustproof guide rail mounting single-phase meter housing structure, by pushing the cover plate 4 upward, when the position of the rectangular piece 6 is aligned with the position of the rectangular groove 8, the rebound force of the spring plate 7 pushes the rectangular piece 6 into the inner cavity of the rectangular groove 8, thereby limiting the cover plate 4, thus achieving the effect of shielding the top of the slide rail, thereby reducing the large accumulation of dust and preventing subsequent slide rail blockage.

Claims

1. A dustproof housing for a single-phase energy meter and its DIN rail mounting structure, characterized in that, Includes a top cover (2) welded to the front side of the meter box (1): the top cover (2) is located on the top of the front side of the meter box (1), a guide rail (3) is installed on the front side of the meter box (1), the meter box (1) is slidably connected to a cover plate (4) through the guide rail (3), two hollow parts (5) are welded to the inner cavity of the cover plate (4), and rectangular parts (6) are slidably connected to the inner cavities of the two hollow parts (5), and spring plates (7) are welded between the rectangular parts (6) and the inner cavities of the hollow parts (5), and two rectangular grooves (8) are opened on the surface of the top cover (2), and the surface of the rectangular parts (6) is slidably connected to the inner cavity of the rectangular grooves (8).

2. The dustproof housing for a single-phase energy meter and its DIN rail mounting structure according to claim 1, characterized in that, The inner cavity of the cover plate (4) is connected to two screw tubes (9), and the surface of the top cover (2) has two screw holes (10).

3. The dustproof housing for a single-phase energy meter and its DIN rail mounting structure according to claim 2, characterized in that, The screw hole (10) and the screw (11) are connected by a screw (11) through a common thread, and the top of the rectangular piece (6) is provided with a bevel (12).

4. The dustproof housing for a single-phase energy meter and its DIN rail mounting structure according to claim 3, characterized in that, The bottom of the top cover (2) is provided with an inner inclined surface (13), and the surface of the inclined surface (12) and the inner cavity of the inner inclined surface (13) are slidably connected.

5. The dustproof housing for a single-phase energy meter and its DIN rail mounting structure according to claim 4, characterized in that, Limiting blocks (14) are welded to both the left and right sides of the rectangular part (6), and limiting grooves are opened on both the left and right sides of the inner cavity of the hollow part (5).

6. The dustproof housing for a single-phase energy meter and its DIN rail mounting structure according to claim 5, characterized in that, The surface of the limiting block (14) is slidably connected to the inner cavity of the limiting groove, and a single-phase meter (15) is installed in the inner cavity of the meter box (1).

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