Waterproof electric energy metering box

Abstract

The application discloses a waterproof electric energy metering box, which comprises an outer box body and an inner box body movably embedded in the inner box body, a waterproof cover is arranged on the upper portion of the outer box body, a gas hole one is arranged on the upper portion of the outer box body and located at the bottom of the outer box body, a gas hole two is arranged on the two side walls of the outer box body, a gas hole three corresponding to the gas hole two is arranged on the two side walls of the inner box body, a limiting opening is arranged on the upper end of the outer box body, a limiting assembly corresponding to the limiting opening is arranged on the bottom plate of the cavity of the outer box body, the limiting assembly comprises a plurality of limiting rods, slide rails are arranged on the two sides of the bottom of the inner box body, a lifting assembly is arranged between the two slide rails and is arranged on the lower portion of the inner box body and is fixedly arranged on the bottom plate of the inner cavity of the outer box body, guide rails are arranged on the two sides of the outer end of the gas hole three, a sliding block is slidably arranged in the guide rail, a heat dissipation cover is fixedly arranged on the upper portion of the inner box body, scissor mechanisms are arranged on the two sides of the heat dissipation cover, the other ends of the scissor mechanisms are connected to the inner side of the waterproof cover, and a cover plate is connected to the outer end of the gas hole two.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, specifically to a waterproof power metering box. Background Technology

[0002] Meter boxes, also known as electricity meter boxes, are enclosed sets of equipment in power systems that integrate and install electricity metering devices and supporting protection components. Their core functions are to accurately measure electricity consumption, isolate and protect circuits, prevent electricity theft, and standardize power supply and meter reading management. They are essential basic power facilities for residential, commercial, industrial, and high-voltage power transmission systems. (See Douyin Encyclopedia)

[0003] Electronic components installed inside metering boxes typically generate heat during operation. To maintain a suitable operating temperature inside the box, multiple ventilation holes are usually provided on the side walls of the box. However, many electricity metering boxes need to be installed in outdoor environments, which exposes them to severe weather conditions such as heavy rain. In windy and rainy conditions, rainwater can easily enter the box through the ventilation holes under the influence of wind or flow along the box walls. Once water enters, water may accumulate inside the box, leading to a reduction in electrical clearances and creepage distances, a decrease in insulation strength, and in turn, problems such as partial discharge, short circuits, or corrosion of metal components. In severe cases, it can cause abnormalities in electrical components, rendering the metering box completely unusable. To address the aforementioned issues, prior art patent application number 202110153244.3 discloses a self-moving waterproof distribution cabinet. This cabinet utilizes sensors and a control module to inflate airbags installed inside the cabinet and positioned below the mounting components when rain falls, raising the mounting plate away from the water surface. The air vents are closed to prevent further rainwater intrusion. However, firstly, the use of rubber airbags as support components has a short lifespan. Exposure to sun and rain can easily lead to shortened lifespan or mold growth, increasing inert gas and posing a risk of explosion within the cabinet. Secondly, during airbag operation, the irregular airflow and slow expansion can cause imbalance in the support plate, leading to misalignment of upper components and potentially damaging the mounting positions of electrical components. Finally, while closing the air vents during rain achieves waterproofing, the increased moisture content in the air during rainy weather... If air is not circulated, the air will condense into water droplets inside the stuffy enclosure, which is a problem for electronic components in dormitories. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a waterproof electricity metering box, which solves the technical problems mentioned in the background section.

[0005] The technical solution of this invention is as follows: To achieve the above objectives, the present invention provides the following technical solution: A waterproof electricity metering box includes an outer casing and an inner casing movably embedded therein. A waterproof cover is also provided on the upper part of the outer casing. The outer casing has a vent hole 1 located at its bottom and vent holes 2 on its side walls. The inner casing has corresponding vent holes 3 on its side walls. A limiting opening is provided at the upper end of the outer casing, and a limiting assembly is provided corresponding to this opening, placed on the bottom plate of the outer casing cavity. The limiting assembly includes multiple limiting rods. The inner casing is slidably disposed between the multiple limiting rods, with its top positioned within the limiting opening. Slide rails are provided on both sides of the bottom of the inner casing. A lifting assembly is provided to support the lower part of the inner box and is fixedly mounted on the bottom plate of the inner cavity of the outer box. Guide rails are provided on both sides of the outer port of the third vent, and sliders are slidably arranged in the guide rails. A heat dissipation box corresponding to the second vent is axially connected to the upper side of the inner port of the second vent. The other diagonal side of the heat dissipation box is axially connected between the two sliders. A fan is built into the heat dissipation box. A heat dissipation cover is fixedly provided on the upper part of the inner box. A scissor mechanism is provided on both sides of the heat dissipation cover. The other end of the scissor mechanism is connected to the inner side of the waterproof cover. A cover plate is axially connected to the outer end of the second vent. A connecting rod is provided between the cover plate and the waterproof cover.

[0006] Preferably, the outer casing and the waterproof cover are separate structures. The outer casing is a hollow rectangular structure. The top of the outer casing is provided with brackets placed on both sides of the limiting port. The brackets are axially connected to a scissor mechanism. The scissor mechanism includes two support rods that are axially connected at the middle. One end of the support rod is axially connected to the outside of the heat sink cover, and the other end of the support rod is axially connected to the inside of the waterproof cover.

[0007] Preferably, there are at least four limiting rods, which are arranged in a rectangular array and vertically mounted on the bottom plate inside the outer casing.

[0008] Preferably, the inner box is provided with support wings on both sides, and the support wings are provided with openings. The inner box is slidably mounted on the limiting rod through the support wings.

[0009] Preferably, the lifting assembly includes a bearing seat with two parallel, open-end cavities inside. A lifting shaft is installed in each cavity, with both ends of the lifting shaft extending outside the cavity. A transmission gear is provided at both ends of the lifting shaft, and the transmission gears at the ends of the two lifting shafts mesh with each other. Lifting plates are also provided at both ends of the lifting shaft. A lifting column is provided at one end of each lifting plate, and the lifting column is slidably embedded in a slide rail on the corresponding side of the inner housing. A V-shaped support structure is formed between the lifting plates at the same ends of the two lifting shafts. A drive motor is coaxially connected to one end of the lifting shaft.

[0010] Preferably, the slider has protrusions on both the top and bottom, and the slider is slidably embedded in the guide rail through the upper and lower protrusions. The outer side of the slider is provided with a spring that is connected to the outer wall of the inner box, and the inner side of the slider is axially fixed to the heat sink.

[0011] Preferably, the heat dissipation box is a hollow rectangular cavity structure with front and rear openings, and filters are provided at both front and rear openings. A fan is installed between the front and rear filters and placed inside the heat dissipation box. The air outlet of the fan is provided corresponding to the second vent, and the air extraction end of the fan is provided corresponding to the third vent.

[0012] Preferably, one end of the upper side of the heat sink is axially connected to the upper side of the inner port of the second vent hole, and the other end diagonally opposite to this axially connected end is axially connected between the sliders. The rotation of the heat sink along the axially connected side is driven by the lifting and lowering of the inner box.

[0013] Preferably, the upper end of the cover plate has two protruding fixing pieces that form a right angle structure with the cover plate. The fixing pieces are axially connected to the connecting rod, and the opening and closing of the cover plate is controlled by the lifting action of the waterproof cover.

[0014] Preferably, the outer casing is further provided with a water-proof control module, which includes a water level sensor and a control unit. The output terminal of the water level sensor is electrically connected to the input terminal of the control unit, and the control unit is used to control the drive motor.

[0015] Beneficial effects This invention provides a waterproof electricity metering box, which has the following beneficial effects: (1) When the water level sensor detects rainwater, it controls the drive motor to rotate and the lifting shaft to rotate relative to each other, reducing the angle between the two lifting plates. The lifting column slides in the slide rail, thereby lifting the inner box, increasing the height of the inner box, avoiding contact with rainwater or ground moisture, and making the lifting more stable.

[0016] (2) By setting a scissor mechanism between the heat dissipation cover and the waterproof cover, under normal conditions, there is a gap between the waterproof cover and the outer box, so that the inner box can diffuse heat to the outside through the heat dissipation cover. When encountering rain, the inner box is raised, and the scissor mechanism is controlled to lower the waterproof cover at the same time and cover the top of the outer box to prevent rainwater from entering. During the descent of the waterproof cover, the lowering of the waterproof cover is controlled by the connecting rod to completely close the cover plate at the outer end of the two vent holes, sealing the port of the outer box that can enter rainwater and preventing rainwater from entering.

[0017] (3) By lifting the inner box, one end of the heat sink is pulled upward by the inner box. While the slider is rising, it can also move back and forth in the guide rail, so that one side of the heat sink forms an arc movement with its shaft end as the fixed point and flips upward. Finally, the air outlet end of the heat sink completes a 90° flip and the opening is downward. Under normal conditions, the heat sink guides the hot air from the exhaust end through the vent three and exhausts it through the exhaust end through the vent three. During its flipping process, the vent two is closed by the cover plate, the air outlet is downward, and the hot air or water vapor generated in the inner box is exhausted through the vent three and guided by the heat sink to flow downward. Finally, it is discharged through the vent one, completing the air circulation action under the condition of preventing external rainwater, avoiding the accumulation of water vapor to form liquid, and the problem of heat not being discharged in time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 for Figure 1 A partial structural diagram of A in the middle; Figure 3 This is a schematic diagram of the outer casing of the present invention; Figure 4 This is a schematic diagram of the inner box structure of the present invention; Figure 5 for Figure 4 A schematic diagram of the partial structure of B in the diagram; Figure 6 This is a schematic diagram of the limiting rod structure of the present invention; Figure 7 This is a cross-sectional view of the heat dissipation structure of the present invention.

[0019] In the picture: 1. Outer casing; 101. Vent hole one; 102. Limiting port; 103. Bracket; 104. Support rod; 105. Vent hole two; 2. Inner casing; 201. Vent hole three; 202. Heat sink cover; 203. Slide rail; 204. Support wing; 205. Guide rail; 206. Slider; 207. Spring; 3. Waterproof cover; 301. Connecting rod; 4. Cover plate; 401. Fixing plate; 5. Shaft seat; 501. Lifting shaft; 502. Transmission gear; 503. Lifting plate; 504. Lifting column; 6. Limiting rod; 7. Heat sink box; 701. Filter screen; 702. Fan. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Example 1 Combination Figure 1 , 3 4. This embodiment discloses a specific assembly structure for a waterproof power metering box. This device is mainly used for the protection, heat dissipation, and waterproofing and moisture-proofing of outdoor power metering equipment. The whole includes an outer box 1 and an inner box 2 that is movably embedded inside the outer box 1. The inner box 2 is the core mounting carrier for power metering elements and protective components, while the outer box 1 is the overall protective base. The two adopt a split movable assembly structure, which can realize the vertical lifting and adjustment of the inner box 2 to meet the waterproof protection requirements in rainy weather.

[0024] Combination Figure 1 , 24. The outer casing 1 is a rectangular box structure with a hollow interior. Multiple ventilation holes 101 are opened through the bottom of the outer casing 1 for air circulation and moisture discharge. Ventilation holes 105 are symmetrically opened on the left and right side walls of the outer casing 1, serving as the main channels for heat dissipation and ventilation under normal conditions. A limiting port 102 is opened in the center of the upper surface of the outer casing 1. A limiting component is fixed to the bottom plate of the inner cavity of the outer casing 1 directly below the limiting port 102. The limiting component consists of at least four limiting rods 6, which are arranged in a rectangular array and vertically fixed to the bottom plate of the outer casing 1 to form a limiting guide frame. The inner housing 2 has integrally formed support wings 204 on both the left and right sides. The support wings 204 have through holes that match the limiting rods 6. The inner housing 2 is slidably fitted between the four limiting rods 6 through the support wings 204, and can be raised and lowered vertically and smoothly along the limiting rods 6. The top edge of the inner housing 2 is always embedded in the limiting port 102 at the upper end of the outer housing 1. The limiting rods 6 achieve full-process guidance and limitation, effectively preventing the inner housing 2 from shifting or shaking during the raising and lowering process, and ensuring the stability of the electrical component installation position.

[0025] Combination Figure 3 , 5 The inner housing 2 has symmetrically fixed slide rails 203 on its left and right sides at the bottom. Two sets of slide rails 203 are arranged parallel to each other. A lifting assembly is positioned between the two slide rails 203. The lifting assembly is fixed to the bottom plate of the outer housing 1, serving as the driving structure for the vertical lifting of the inner housing 2. The lifting assembly includes a bearing 5 fixed to the bottom plate of the outer housing 1. The bearing 5 has two parallel, through-hole cavities inside. A lifting shaft 501 is slidably mounted inside each cavity, with both ends of the lifting shaft 501 extending outside the cavity. Transmission gears 502 are fixedly mounted on the same side of the two lifting shafts 501. The two transmission gears 502 mesh with each other, enabling the synchronous counter-rotation of the two lifting shafts 501. Each lifting shaft 501 has a lifting plate 503 fixedly connected to both ends. A lifting column 504 is fixedly mounted on the free end of each lifting plate 503. The lifting column 504 is slidably embedded inside the corresponding slide rail 203 of the inner housing 2. Two sets of lifting plates 503 on the same side of the two lifting shafts 501 are symmetrically arranged, forming a V-shaped dynamic support structure. A drive motor is coaxially fixedly connected to the end of one of the lifting shafts 501. The drive motor is fixedly mounted on the outside of the shaft seat 5, providing active driving force for the lifting assembly. By rotating the motor forward and backward, the angle between the two sets of lifting plates 503 can be controlled to adjust the height of the inner housing 2.

[0026] Combination Figure 3Ventilation holes 201 are provided on the left and right side walls of the inner casing 2, corresponding to the ventilation holes 105 of the outer casing 1, to allow air exchange between the inner casing 2 and the outer casing 1. A transverse guide rail 205 is symmetrically fixed to both sides of the outer port of each ventilation hole 201. A matching slider 206 is slidably embedded inside the guide rail 205. Limiting protrusions are provided at the upper and lower ends of the slider 206. The slider 206 is slidably assembled inside the guide rail 205 by engaging with the upper and lower protrusions, allowing it to move horizontally back and forth along the guide rail 205 without falling off. A return spring 207 is mounted on the outer side of the slider 206, with the other end of the spring 207 fixedly connected to the outer side wall of the inner casing 2, for automatic reset of the slider 206. The inner side of the slider 206 is axially fixed to the heat sink 7 at diagonal positions.

[0027] Combination Figure 5 , 6 The heat dissipation box 7 is a hollow rectangular cavity structure with complete openings at both the front and rear. Dust filters 701 are fixedly installed at both openings to prevent external dust and debris from entering the box. A cooling fan 702 is fixedly installed inside the cavity between the two sets of filters 701. The fan 702 is horizontally positioned, with its exhaust end facing the inner vent 201 and its exhaust end facing the outer vent 105. One end of the upper side of the heat dissipation box 7 is hinged to the upper side of the inner port of the second vent 105, and the other end, diagonally opposite to this hinged end, is hinged between the two sliding blocks 206, forming a fixed-point hinged, follow-up rotating assembly structure. This structure can move horizontally with the sliding blocks 206 in conjunction with the lifting and lowering motion of the inner box 2, allowing the heat dissipation box 7 to be adjusted by tilting.

[0028] Combination Figure 1 The outer casing 1 is fitted with a waterproof cover 3 on its upper part. The waterproof cover 3 and the outer casing 1 are separate protective structures. Supports 103 are symmetrically fixed to the top of the outer casing 1 and on both sides of the limiting port 102. A scissor mechanism is hinged to the inner side of the support 103. The scissor mechanism consists of two cross-axis support rods 104, forming a telescopic and foldable scissor structure. One end of each support rod 104 is hinged to the inner side of the fixed support 103, and the other end is hinged and fixed to the outside of the heat dissipation cover 202 fixed to the upper part of the inner casing 2. The heat dissipation cover 202 covers the top of the inner casing 2 and is used to collect the heat dissipated from the upper part of the inner casing 2. The upper end of the support rod 104 of the scissor mechanism is hinged to the inner wall of the waterproof cover 3. Through the telescopic and folding action of the scissor mechanism, the waterproof cover 3 can be vertically raised and lowered, realizing the opening and closing of the top of the outer casing 1.

[0029] Combination Figure 1 , 2A sealing cover plate 4 is hinged to the upper side of the outer port of the second vent 105 of the outer casing 1. The upper two sides of the cover plate 4 form a fixing piece 401 at a right angle to the cover plate 4. The fixing piece 401 is hinged to the lower end of the inclined connecting rod 301. The upper end of the connecting rod 301 is hinged to the inner wall of the waterproof cover 3, so that the opening and closing action of the cover plate 4 and the lifting action of the waterproof cover 3 form a mechanical linkage. The cover plate 4 can be automatically controlled to block or open the second vent 105 by the lifting of the waterproof cover 3.

[0030] The outer casing 1 also integrates a water-proof control module, which includes a water level sensor and a control unit. The water level sensor is fixedly installed in a low-lying area on the bottom plate of the outer casing 1, and can sense the signals of external rainwater accumulation and humid environment in real time. The signal output terminal of the water level sensor is electrically connected to the signal input terminal of the control unit, and the control output terminal of the control unit is electrically connected to the drive motor of the lifting component. It can automatically control the start, stop, forward and reverse rotation of the drive motor according to the monitoring signal to realize the automated waterproof protection control of the equipment.

[0031] Example 2 This embodiment, based on the equipment structure of Embodiment 1, fully illustrates the fully automatic workflow of this waterproof energy metering box in both normal dry and rainy / humid environments. It achieves integrated functions including efficient heat dissipation under normal conditions, all-around waterproofing in rainy weather, condensation prevention, and prevention of component misalignment. The specific working process is as follows: Under normal operating conditions with no rain and a dry environment, the equipment operates in normal heat dissipation mode. At this time, the drive motor is not running, the two sets of lifting plates 503 of the lifting assembly maintain the maximum V-angle, the inner housing 2 is in its lowest installation position, fitting snugly against the lower part of the outer housing 1, and the overall structure of the equipment is stable. The scissor mechanism is in its extended and open state, supporting the waterproof cover 3 suspended above the top of the outer housing 1, maintaining a ventilation gap between the waterproof cover 3 and the upper part of the outer housing 1. The heat dissipation hood 202 on the top of the inner housing 2 can normally dissipate the heat accumulated inside the housing upwards.

[0032] In this state, the cover plate 4 on the outside of vent 2 105 is kept open by the connecting rod 301, and vent 1 101, vent 2 105, and vent 3 201 are fully connected. The heat dissipation box 7 remains horizontally laid out, and the internal fan 702 starts and runs normally. The fan 702 draws out the high-temperature hot air generated by the electrical components inside the inner box 2 through the inner exhaust end and vent 3 201. After being transported by the fan 702, the hot air is directly discharged to the outside of the box from the exhaust end through vent 2 105. At the same time, ambient air enters the box from the bottom of vent 1 101 and vent 2 105, forming continuous convection ventilation, quickly removing the heat inside the box, achieving normal and efficient heat dissipation of the metering box, and avoiding high-temperature heat accumulation that affects the working performance of electrical components. At this time, the slider 206 is in the initial position under the action of the spring 207, and the heat dissipation box 7 maintains a horizontal ventilation posture without angular deviation.

[0033] When encountering heavy rain, water accumulation on the ground, or high humidity and rainy weather, the water level sensor at the bottom of the outer casing 1 monitors the water accumulation or high humidity signal in real time and transmits the monitoring signal to the control unit. After receiving the signal, the control unit automatically starts the drive motor.

[0034] The drive motor rotates the lifting shaft 501 on the same side, and through the meshing transmission gear 502, it drives the two lifting shafts 501 to rotate synchronously in opposite directions. The lifting plates 503 at the ends of the two lifting shafts 501 rotate synchronously, reducing the V-shaped support angle. The lifting columns 504 at the ends of the lifting plates 503 slide synchronously within the slide rails 203 at the bottom of the inner box 2, smoothly lifting the inner box 2. The inner box 2 is vertically and smoothly lifted along the surrounding limiting rods 6. The entire process is limited and guided by the limiting rods 6, and there will be no left or right deviation or tilting. This completely solves the problems of uneven force and component misalignment in traditional airbag support structures, effectively raising the overall height of the inner box 2 and the internal electrical components, keeping them away from bottom water and ground moisture, and preventing water immersion and moisture corrosion of electrical equipment.

[0035] During the lifting of the inner casing 2, the upper heat dissipation cover 202 moves upward simultaneously. The heat dissipation cover 202 pulls the scissor mechanism to fold and retract, changing the scissor mechanism from an extended state to a retracted state. This causes the waterproof cover 3 to descend vertically, completely covering the top of the outer casing 1 and sealing the upper limit opening 102 and the top gap of the outer casing 1, preventing rainwater from seeping into the interior through the gaps at the top of the casing. At the same time, during the descent of the waterproof cover 3, the hinged connecting rod 301 pulls the outer cover plate 4 to flip, causing the cover plate 4 to completely fit and seal the outer end of the second vent 105, completely sealing the side ventilation port and blocking the passage of rainwater carried by wind and rain from entering the interior of the casing through the second vent 105, achieving all-round physical waterproofing.

[0036] After the second vent 105 is completely sealed by the cover plate 4, as the inner box 2 continues to rise, it will pull the diagonal ends of the heat sink 7 upward. The heat sink 7 will rotate in an arc with the upper side shaft joint of the inner port of the second vent 105 as the fixed point. At the same time, it will pull the slider 206 to slide horizontally along the guide rail 205 to adapt to the rotation displacement of the heat sink 7. The spring 207 will stretch and deform with the movement of the slider 206 to ensure smooth and uninterrupted structural movement. Finally, the heat sink 7 will complete a 90° rotation, and the air outlet of the fan 702 will change from the original horizontal outward state to the vertical downward state.

[0037] At this point, all external ventilation ports of the enclosure are sealed to prevent rainwater from entering. Simultaneously, the equipment establishes an independent internal circulating ventilation system: residual heat and moisture inside the inner enclosure 2 are drawn out by the internal fan 702 of the heat dissipation box 7 through vent 3 201, flow vertically downwards through the inverted heat dissipation box 7, and finally exit through vent 101 at the bottom of the outer enclosure 1. This structural design allows the equipment to maintain continuous air circulation inside the enclosure even in a completely waterproof and sealed state. It effectively solves the technical problems of traditional waterproof equipment, such as stuffiness, moisture buildup, and condensation that corrodes electronic components after sealing, fundamentally preventing condensation, water accumulation, corrosion, and short circuits inside the enclosure.

[0038] When the rain stops, the water recedes, and the ambient humidity returns to normal, the water level sensor signal returns to normal, the control unit controls the drive motor to rotate in the opposite direction, the lifting plate 503 gradually opens at an angle, and the inner box 2 smoothly descends and resets to its initial low position. At the same time, the scissor mechanism re-extends, pushing the waterproof cover 3 to rise and reset, the connecting rod 301 drives the cover plate 4 to reopen the vent 105, and the heat dissipation box 7 automatically flips and resets to a horizontal state as the inner box 2 descends. The equipment automatically switches to normal convection cooling mode, completing a single waterproof protection cycle.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof electricity metering box, comprising an outer box (1) and an inner box (2) movably embedded therein, the outer box (1) being provided with a waterproof cover (3) on its upper part, the outer box (1) having a vent hole 1 (101) at its bottom and vent holes 2 (105) on its two side walls, the inner box (2) having vent holes 3 (201) corresponding to the vent holes 2 (105) on its two side walls, characterized in that: The upper end of the outer casing (1) has a limiting port (102). A limiting component is provided on the bottom plate of the cavity of the outer casing (1) corresponding to the limiting port (102). The limiting component includes multiple limiting rods (6). The inner casing (2) is slidably disposed between the multiple limiting rods (6) and its top is placed in the limiting port (102). Slide rails (203) are provided on both sides of the bottom of the inner casing (2). A lifting component is provided between the two slide rails (203) to support the lower part of the inner casing (2) and fixedly disposed on the bottom plate of the inner cavity of the outer casing (1). Guide rails (205) are provided on both sides of the outer port of the vent hole three (201). 5) A slider (206) is provided inside. A heat dissipation box (7) corresponding to the second vent (105) is axially connected to the upper side of the inner port of the second vent (105). The other diagonal side of the heat dissipation box (7) is axially connected between the two sliders (206). A fan (702) is built into the heat dissipation box (7). A heat dissipation cover (202) is fixed on the upper part of the inner box (2). A scissor mechanism is provided on both sides of the heat dissipation cover (202). The other end of the scissor mechanism is connected to the inner side of the waterproof cover (3). A cover plate (4) is axially connected to the outer end of the second vent (105). A connecting rod (301) is provided between the cover plate (4) and the waterproof cover (3).

2. The waterproof power metering box according to claim 1, characterized in that: The outer casing (1) and the waterproof cover (3) are separate structures. The outer casing (1) is a rectangular structure with a hollow interior. The top of the outer casing (1) is provided with brackets (103) placed on both sides of the limiting port (102). The brackets (103) are connected to a scissor mechanism on the inner side. The scissor mechanism includes two cross-connected support rods (104) in the middle. One end of the support rod (104) is connected to the outside of the heat sink cover (202), and the other end of the support rod (104) is connected to the inside of the waterproof cover (3).

3. A waterproof power metering box according to claim 1, characterized in that: There are at least four limiting rods (6), which are arranged in a rectangular array and vertically set on the inner bottom plate of the outer box (1).

4. A waterproof power metering box according to claim 1, characterized in that: The inner box (2) is provided with support wings (204) on both sides, and the support wings (204) have openings. The inner box (2) is slidably mounted on the limiting rod (6) through the support wings (204).

5. A waterproof power metering box according to claim 1, characterized in that: The lifting assembly includes a bearing seat (5), which has two parallel tubes with open ends. Each tube is equipped with a lifting shaft (501). Both ends of the lifting shaft (501) extend outside the tubes, and both ends are provided with transmission gears (502). The transmission gears (502) at the ends of the two lifting shafts (501) mesh with each other. Both ends of the lifting shaft (501) are also provided with lifting plates (503). One end of the lifting plate (503) is provided with a lifting column (504). The lifting column (504) is slidably embedded in the slide rail (203) on the corresponding side of the inner box (2). The lifting plates (503) at the same end of the two lifting shafts (501) form a V-shaped support structure. One end of the lifting shaft is coaxially connected to a drive motor.

6. A waterproof power metering box according to claim 1, characterized in that: The slider (206) is provided with protrusions on both the top and bottom. The slider (206) is slidably embedded in the guide rail (205) through the upper and lower protrusions. The outer side of the slider (206) is provided with a spring (207) connected to the outer wall of the inner box (2). The inner side of the slider (206) is axially fixed to the heat sink (7).

7. A waterproof power metering box according to claim 1, characterized in that: The heat dissipation box (7) is a rectangular cavity structure with a hollow interior. The heat dissipation box (7) has openings at the front and back, and filters (701) are provided at both the front and back openings. A fan (702) is installed between the front and back filters (701) of the heat dissipation box (7) and placed inside the heat dissipation box (7). The air outlet of the fan (702) is set with air vent two (105), and the air exhaust end of the fan (702) is set with air vent three (201).

8. A waterproof power metering box according to claim 1, characterized in that: The upper side of the heat sink (7) is axially connected to the upper side of the inner port of the second vent (105), and the diagonally opposite end of the axial connection is axially connected between the sliders (206). The heat sink (7) is rotated along the axial connection by the lifting and lowering of the inner box (2).

9. A waterproof power metering box according to claim 1, characterized in that: The upper end of the cover plate (4) has two protruding fixing pieces (401) that form a right angle structure with the cover plate (4). The fixing pieces (401) are axially connected to the connecting rod (301) and the opening and closing of the cover plate (4) is controlled by the lifting action of the waterproof cover (3).

10. A waterproof energy metering box according to claim 1, characterized in that: The outer casing (1) is also equipped with a water-proof control module, which includes a water level sensor and a control unit. The output of the water level sensor is electrically connected to the input of the control unit, and the control unit is used to control the drive motor.

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