A size-adjustable meter box

By using an adjustable meter box design and connecting and moving mechanisms, the problem of existing meter boxes being unable to flexibly adjust their size and the number of meters that can be installed is solved. This enables flexible adjustment of the meter box size and convenient installation, making it suitable for various occasions and reducing resource waste.

CN224318957UActive Publication Date: 2026-06-02ZHEJIANG HESI ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HESI ELECTRIC CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing meter boxes cannot be flexibly adjusted in size and the number of meters installed, resulting in a waste of resources.

Method used

The adjustable meter box design allows for flexible combination and expansion of the box through connecting and moving mechanisms. Combined with locking blocks, slots, springs, gear racks and pinions, the box is adjustable and easy to install.

Benefits of technology

It enables flexible adjustment of the meter box size, taking into account both ease of installation and structural stability, and is suitable for occasions with limited space or those requiring expansion, reducing customization costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of power equipment technology and discloses an adjustable meter box, including a box body one. A light is installed in the center of the inner top wall of box body one. Connecting mechanisms are provided on both the left and right sides of the outer wall of box body one. These connecting mechanisms are used for combination and splicing to adapt to different space requirements. A moving mechanism is provided inside box body one for easy movement and maintenance. The connecting mechanisms include two box bodies two, each located on the left and right sides of the outer wall of box body one. Locking blocks are fixedly connected to the upper and lower ends of adjacent sides of the outer walls of the two box bodies two. In this utility model, the pressing block enters the sliding groove two and compresses the spring. After the block is fully inserted into the groove, the spring pushes the block into place to lock it. The notch of the sliding plate cooperates with the block, and a pin passes through the sliding plate and is fixed to the circular groove of box body one to prevent slippage. The modular combination and adjustable mounting bracket support multiple application scenarios.
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Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a size-adjustable meter box. Background Technology

[0002] An electric meter box is a box-like device specifically designed to install electric energy metering instruments and related electrical components. It is a key piece of equipment in a power system for realizing the metering, distribution, control, and protection of electric energy. Through a box made of metal or insulating material, it isolates live components from the outside world, preventing the impact of dust, moisture, and external impacts on the equipment. At the same time, a grounding device ensures personal safety in case of leakage. It is widely used in the fields of power transmission and distribution and building power distribution.

[0003] A search revealed Chinese Patent Publication No. CN113721059B, which discloses an electricity meter box comprising a box body, a wire cover, and an electricity meter. A vertical rod is installed inside the box body, and a mounting groove is provided on the back of the electricity meter. Locking holes are provided on both sides of the vertical rod, and locking shafts are symmetrically arranged on both sides of the electricity meter, each vertically connected to a connecting rod. A return spring is provided between the electricity meter and the connecting rods. Both connecting rods are connected to driving rods, which are slidably mounted on the electricity meter, and a retraction assembly is provided between the two driving rods. Multiple insertion holes are provided on the lower end face of the electricity meter, each containing a wire clamp. A rotating gate is rotatably mounted on the electricity meter, and a pressure post is provided on the rotating gate. A through hole communicating with the insertion holes is provided on the surface of the electricity meter. When the rotating gate is closed on the electricity meter, the pressure post passes through the through hole and presses against the wire clamp. A locking assembly is provided between the rotating gate and the electricity meter. This application allows for the quick installation or removal of electricity meters from meter boxes, but it does not allow for flexible adjustment of size and the number of meters installed, resulting in a waste of resources. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a size-adjustable meter box, which aims to improve the problem of resource waste caused by the inability to flexibly adjust the size and number of meters installed in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable meter box, comprising a box body one, wherein a lighting lamp is installed in the middle of the inner top wall of the box body one, and connecting mechanisms are provided on the left and right sides of the outer wall of the box body one, the connecting mechanisms being used for combination and splicing to adapt to different space requirements, and a moving mechanism is provided inside the box body one for easy movement and maintenance; the connecting mechanism includes a box body two, both of which are provided on the left and right sides of the outer wall of the box body one, and locking blocks are fixedly connected to the upper and lower ends of adjacent sides of the outer walls of the two box bodies two, the top wall of the locking blocks having a slot, the upper and lower ends of the left and right sides of the outer wall of the box body one having a sliding groove one, and the inner walls of multiple sliding grooves one having a sliding groove two on adjacent sides, the inner top wall of the sliding groove two being installed with a spring, the end of the spring being installed with a locking block, and fixing components being provided at the four corners of the rear side of the outer wall of the box body one.

[0006] Through the above technical solution: the lighting can provide maintenance illumination and support nighttime maintenance; the connecting mechanism is used for combination and splicing to adapt to different space requirements; the moving mechanism is used for movement to facilitate maintenance; when it is necessary to expand the first box, the locking block of the second box will slide along the first slide groove of the first box and insert itself. The locking block squeezes the card block, causing it to retract into the second slide groove and compress the spring. Once the card block is fully slid into the slot, the spring rebounds and pushes the card block into the slot to complete the locking, thereby preventing slippage. This achieves flexible adjustment of the box size, while taking into account the convenience of installation and the stability of the structure. It is particularly suitable for occasions that require later expansion or where space is limited.

[0007] As a further description of the above technical solution:

[0008] The fixing component includes a sliding block, and multiple sliding blocks are fixedly connected to the four corners of the rear side of the outer wall of the box. A sliding plate is slidably connected to the inner side of the outer wall of the sliding block. A circular groove is opened on both the sliding plate and the rear side of the outer wall of the box. A pin is provided on the inner wall of the circular groove.

[0009] The above technical solution uses a sliding block for sliding the slide plate and a circular groove for placing the pin.

[0010] As a further description of the above technical solution:

[0011] The moving mechanism includes a rotating shaft that passes through the right side of the outer wall of the housing. A gear is fixedly connected to the left side of the outer wall of the rotating shaft, and a rack is meshed with the top of the gear. Slide grooves are provided in the middle of the left and right sides of the inner wall of the housing. A slider is slidably connected to the inner wall of the slide groove. A fixing block is fixedly connected to the adjacent side of the outer wall of the two sliders. The bottom wall of the right fixing block is fixedly connected to the top wall of the rack. A back plate is fixedly connected to the rear side of the outer wall of the two fixing blocks. Multiple mounting plates are fixedly connected at equal intervals to the front side of the outer wall of the back plate. A drive assembly is provided on the right side of the outer wall of the housing.

[0012] Through the above technical solution: the rotation of the shaft drives the gear to rotate, and the movement of the gear causes the rack to shift. The rack is connected to the fixed block on the right side, so the fixed block will move back and forth accordingly. The movement of the fixed block will cause the slider to slide in the slide groove three inside the housing. At the same time, the fixed block is connected to the back plate, and the back plate is connected to multiple mounting plates. Therefore, the back plate and the mounting plates as a whole will also move back and forth, thereby realizing the convenient removal of the mounting plates from the housing for maintenance work.

[0013] As a further description of the above technical solution:

[0014] The drive assembly includes a wheel, which is disposed on the right side of the outer wall of the housing, and a handle is rotatably connected to the upper middle part of the right side of the outer wall of the wheel.

[0015] With the above technical solution: the wheel is located on the right side of the housing, and the handle will drive the wheel to rotate.

[0016] As a further description of the above technical solution:

[0017] The locking block is slidably connected to the slide groove, and the locking block engages with the locking groove.

[0018] Through the above technical solution: the slide groove is used to slide the locking block, and the locking block is used to fix the locking groove on the locking block.

[0019] As a further description of the above technical solution:

[0020] The sliding plate engages with the locking block, and the pin engages with the circular groove.

[0021] The above technical solution uses a sliding block for sliding the slide plate and a circular groove for placing the pin.

[0022] As a further description of the above technical solution:

[0023] The rotating shaft is rotatably connected to the middle right side of the outer wall of the second right-side housing, and the wheel is fixedly connected to the right side of the outer wall of the rotating shaft.

[0024] Through the above technical solution: the rotating shaft rotates on the right side of the second right-side housing, and the rotation of the wheel is then transmitted to the rotating shaft.

[0025] As a further description of the above technical solution:

[0026] The inner wall of the housing is provided with a wire groove, and the back plate is fixedly connected to the rear side of the outer wall of the wire groove.

[0027] The above technical solution provides a dedicated channel for internal wiring, preventing messy and tangled wiring and facilitating installation and maintenance. The backplate is used to move the cable tray.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, when the first box is expanded, the locking block of the second box slides into its first groove, squeezes the card block into the second groove and compresses the spring. After the card block is fully inserted into the slot, the spring pushes the card block to lock in place. The notch of the slide plate cooperates with the card block and is fixed to the circular groove of the first box by a pin passing through the slide plate to prevent sliding. The modular combination and adjustable mounting bracket support multiple application scenarios and reduce customization costs.

[0030] 2. In this utility model, when repairing the meter, the handle is turned to drive the wheel and shaft to rotate. The shaft drives the gear to rotate, the gear drives the rack to move, and the rack is connected to the fixed block to move. At the same time, it drives the slider to slide in the groove. The fixed block is connected to the back plate, and the back plate is connected to the mounting plate, so that the entire back plate and mounting plate can move back and forth, making it convenient to remove the box for repair. Attached Figure Description

[0031] Figure 1 This is a front view of an adjustable-size watch box according to the present invention.

[0032] Figure 2 This is a perspective view of an adjustable-size watch case proposed in this utility model;

[0033] Figure 3 This is a partial structural diagram of an adjustable-size watch box proposed in this utility model;

[0034] Figure 4 This is an exploded view of an adjustable-size watch case according to the present invention.

[0035] Figure 5 This utility model proposes a size-adjustable watch case. Figure 1 Enlarged view of point A in the middle;

[0036] Figure 6 This is a partial structural diagram of an adjustable-size watch case proposed in this utility model.

[0037] Legend:

[0038] 1. Housing 1; 2. Connecting mechanism; 201. Housing 2; 202. Locking block; 203. Slot; 204. Slide 1; 205. Slide 2; 206. Spring; 207. Locking block; 208. Fixing component; 2081. Slide block; 2082. Slide plate; 2083. Circular groove; 2084. Pin; 3. Moving mechanism; 301. Rotating shaft; 302. Gear; 303. Rack; 304. Fixing block; 305. Back plate; 306. Mounting plate; 307. Slider; 308. Slide 3; 309. Drive component; 3091. Wheel; 3092. Handle; 4. Lighting lamp; 5. Cable tray. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of an adjustable meter box, comprising a box body 1. A lighting lamp 4 is installed in the center of the inner top wall of box body 1, providing maintenance lighting and supporting nighttime maintenance. Connecting mechanisms 2 are provided on both the left and right sides of the outer wall of box body 1, used for combination and splicing to adapt to different space requirements. A moving mechanism 3 is provided inside box body 1 for easy movement and maintenance. The connecting mechanism 2 includes two boxes 201, each located on the left and right sides of the outer wall of box body 1. Locking blocks 202 are fixedly connected to the upper and lower ends of adjacent sides of the outer walls of the two boxes 201. A slot 203 is provided on the top wall of the locking block 202. Slide grooves 204 are provided on the upper and lower ends of the left and right sides of the outer wall of box body 1. Slide grooves 205 are provided on adjacent sides of the inner walls of multiple slide grooves 204, used for sliding the locking block 207. A spring 206 is installed on the inner top wall of box 05. A locking block 207 is installed at the end of the spring 206. The spring 206 is used to rebound the locking block 207. Fixing components 208 are provided at the four corners of the rear side of the outer wall of box 1. The fixing components 208 include sliding blocks 2081. Multiple sliding blocks 2081 are fixedly connected to the four corners of the rear side of the outer wall of box 1. A sliding plate 2082 is slidably connected to the inner side of the outer wall of the sliding block 2081. 081 is used for sliding slide plate 2082. Both slide plate 2082 and the rear side of the outer wall of box 1 are provided with circular grooves 2083. The inner wall of circular groove 2083 is provided with pin 2084. Circular groove 2083 is used to place pin 2084. Locking block 202 is slidably connected to slide groove 204. Slot 203 is used to slide locking block 202. Slot 207 is engaged with slot 203. Slot 207 is used to fix slot 203 on locking block 202.

[0041] Specifically, the lighting 4 provides maintenance lighting and supports nighttime maintenance. The connecting mechanism 2 is used for combination and splicing to adapt to different space requirements. The moving mechanism 3 is used for movement to facilitate maintenance. When the enclosure 1 needs to be expanded, the locking block 202 of the enclosure 201 will slide along the slide groove 204 of the enclosure 1 and be inserted. The locking block 202 squeezes the card block 207, causing it to retract into the slide groove 205 and compress the spring 206. Once the card block 207 is fully slid into the slot 203, the spring 206 rebounds and pushes the card block 207 into the slot 203 to complete the locking, thereby preventing sliding. This achieves flexible adjustment of the enclosure size, while taking into account the convenience of installation and the stability of the structure. It is particularly suitable for occasions where later expansion is required or space is limited. The slide block 2081 is used to slide the slide plate 2082, the round groove 2083 is used to place the pin 2084, the slot 203 is used to slide the locking block 202, and the card block 207 is used to fix the slot 203 on the locking block 202.

[0042] Reference Figure 2 , Figure 3 and Figure 6The moving mechanism 3 includes a rotating shaft 301, which passes through the right side of the outer wall of the housing 1. A gear 302 is fixedly connected to the left side of the outer wall of the rotating shaft 301. The rotation of the rotating shaft 301 drives the gear 302 to rotate. A rack 303 is meshed with the top of the gear 302. The movement of the gear 302 causes the rack 303 to move. Slide grooves 308 are provided in the middle of the left and right sides of the inner wall of the housing 1. Sliding blocks 307 are slidably connected to the inner wall of the slide grooves 308. The movement of the fixed block 304 will drive the sliding blocks 307 to slide in the slide grooves 308 in the housing 1. Fixed blocks 304 are fixedly connected to adjacent sides of the outer walls of the two sliding blocks 307. The bottom wall of block 304 is fixedly connected to the top wall of rack 303. The back plate 305 is fixedly connected to the rear side of the outer wall of both fixed blocks 304. Multiple mounting plates 306 are fixedly connected at equal intervals to the front side of the outer wall of the back plate 305. A drive assembly 309 is provided on the right side of the outer wall of housing 1. The drive assembly 309 includes a wheel 3091. The wheel 3091 is located on the right side of the outer wall of housing 1. A handle 3092 is rotatably connected to the upper middle part of the right side of the outer wall of the wheel 3091. A rotating shaft 301 is rotatably connected to the middle part of the right side of the outer wall of housing 201. The rotating shaft 301 rotates on the right side of housing 201. The wheel 3091 is fixedly connected to the right side of the outer wall of the rotating shaft 301.

[0043] Specifically, the rotation of the shaft 301 drives the gear 302 to rotate, and the movement of the gear 302 causes the rack 303 to shift. The rack 303 is connected to the fixed block 304 on the right side, so the fixed block 304 will move back and forth accordingly. The movement of the fixed block 304 will drive the slider 307 to slide in the slide groove 308 in the housing 1. At the same time, the fixed block 304 is connected to the back plate 305, and the back plate 305 is connected to multiple mounting plates 306. Therefore, the back plate 305 and the mounting plates 306 as a whole will also move back and forth, thereby realizing the convenient removal of the mounting plates 306 from the housing 1 for maintenance work. The handle 3092 drives the wheel 3091 to rotate, and the rotation of the wheel 3091 is transmitted to the shaft 301. The shaft 301 rotates on the outer wall of the housing 201 on the right side.

[0044] Reference Figure 3 , Figure 5 and Figure 6 The slide plate 2082 engages with the card block 207, the pin 2084 engages with the circular groove 2083, the inner wall of the box 1 is provided with a wire groove 5, and the back plate 305 is fixedly connected to the rear side of the outer wall of the wire groove 5.

[0045] Specifically, the notch of the slide plate 2082 is inserted into the card block 207, and the slide plate 2082 is further fixed to the circular groove 2083 of the housing 1 by the pin 2084. The wire groove 5 is used to provide a dedicated channel for the internal wiring, avoid the wiring from being messy and tangled, and facilitate installation and maintenance. The back plate 305 is used to move the wire groove 5.

[0046] Working principle: When it is necessary to expand the housing 1, the locking block 202 of the housing 201 slides into the slide groove 204 of the housing 1. The locking block 202 squeezes the card block 207 into the slide groove 205 and compresses the spring 206. When the card block 207 slides completely into the slot 203, the spring 206 rebounds and pushes the card block 207 into the slot 203 to complete the locking. The notch of the slide plate 2082 is inserted into the card block 207, and is further fixed by the pin 2084 through the slide plate 2082 and the circular groove 2083 of the housing 1 to prevent sliding. This realizes the flexible adjustment of the size of the meter box, takes into account the convenience of installation and structural stability, and is suitable for scenarios that require later expansion or have limited space.

[0047] When the internal meter needs to be inspected, turn the handle 3092. The handle 3092 drives the wheel 3091 to rotate. The wheel 3091 drives the rotating shaft 301 to rotate. The rotating shaft 301 drives the gear 302 to rotate. The gear 302 drives the rack 303 to move. The rack 303 is connected to the right-side fixed block 304, which drives the fixed block 304 to move back and forth. The fixed block 304 drives the slider 307 to slide in the sliding groove 308 inside the housing 1. At the same time, the fixed block 304 is connected to the back plate 305. The back plate 305 is connected to multiple mounting plates 306, which allows the back plate 305 and the mounting plates 306 to move back and forth as a whole, so that the mounting plates 306 can be easily removed from the housing 1 for easy inspection.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A size-adjustable meter box, comprising a box body (1), characterized in that: A lighting lamp (4) is installed in the middle of the inner top wall of the box (1). A connecting mechanism (2) is provided on both the left and right sides of the outer wall of the box (1). The connecting mechanism (2) is used to combine and splice to adapt to different space requirements. A moving mechanism (3) is provided inside the box (1). The moving mechanism (3) is used to move for easy maintenance. The connecting mechanism (2) includes a second box (201). Two second boxes (201) are set on the left and right sides of the outer wall of the first box (1). Locking blocks (202) are fixedly connected to the upper and lower ends of the adjacent sides of the outer walls of the two second boxes (201). The top wall of the locking block (202) is provided with a slot (203). The upper and lower ends of the left and right sides of the outer wall of the first box (1) are provided with a sliding groove (204). The inner walls of the multiple sliding grooves (204) are provided with a sliding groove (205) on the adjacent sides. A spring (206) is installed on the inner top wall of the sliding groove (205). A locking block (207) is installed at the end of the spring (206). Fixing components (208) are provided at the four corners of the rear side of the outer wall of the first box (1).

2. The adjustable-size meter box according to claim 1, characterized in that: The fixing component (208) includes a sliding block (2081). Multiple sliding blocks (2081) are fixedly connected to the four corners of the rear side of the outer wall of the box (1). A sliding plate (2082) is slidably connected to the inner side of the outer wall of the sliding block (2081). A circular groove (2083) is opened on the rear side of the outer wall of the sliding plate (2082) and the outer wall of the box (1). A pin (2084) is provided on the inner wall of the circular groove (2083).

3. The adjustable-size meter box according to claim 1, characterized in that: The moving mechanism (3) includes a rotating shaft (301), which passes through the right side of the outer wall of the housing (1). A gear (302) is fixedly connected to the left side of the outer wall of the rotating shaft (301). A rack (303) is meshed with the top of the gear (302). A sliding groove (308) is provided in the middle of the left and right sides of the inner wall of the housing (1). A slider (307) is slidably connected to the inner wall of the sliding groove (308). A fixing block (304) is fixedly connected to the adjacent side of the outer wall of the two sliders (307). The bottom wall of the right fixing block (304) is fixedly connected to the top wall of the rack (303). A back plate (305) is fixedly connected to the rear side of the outer wall of the two fixing blocks (304). A plurality of mounting plates (306) are fixedly connected at equal intervals to the front side of the outer wall of the back plate (305). A drive assembly (309) is provided on the right side of the outer wall of the housing (1).

4. The adjustable-size meter box according to claim 3, characterized in that: The drive assembly (309) includes a wheel (3091), which is located on the right side of the outer wall of the housing (1), and a handle (3092) is rotatably connected to the upper middle part of the right side of the outer wall of the wheel (3091).

5. The adjustable-size meter box according to claim 1, characterized in that: The locking block (202) is slidably connected to the slide groove (204), and the locking block (207) is engaged with the slot (203).

6. The adjustable-size meter box according to claim 2, characterized in that: The sliding plate (2082) engages with the locking block (207), and the pin (2084) engages with the circular groove (2083).

7. The adjustable-size meter box according to claim 4, characterized in that: The rotating shaft (301) is rotatably connected to the middle right side of the outer wall of the second right box (201), and the wheel (3091) is fixedly connected to the right side of the outer wall of the rotating shaft (301).

8. The adjustable-size meter box according to claim 3, characterized in that: The inner wall of the box (1) is provided with a wire groove (5), and the back plate (305) is fixedly connected to the rear side of the outer wall of the wire groove (5).