Electric meter box with protection function

Abstract

The invention relates to the technical field of electrical equipment, and discloses an electric meter box with a protection function, the electric meter box comprises an electric meter box body and main heat dissipation holes formed in the side wall of the electric meter box body, a rotating shaft is rotatably inserted in the side wall of the electric meter box body, one end of the rotating shaft is provided with a windmill, and the other end of the rotating shaft is provided with a gear; the outer side of the main baffle plate is provided with teeth engaged with the gear, the bottom of the electric meter box body is provided with standby heat dissipation holes, the bottom of the electric meter box body is slidably provided with a standby baffle plate, and a linkage assembly is arranged between the main baffle plate and the standby baffle plate. In strong wind weather, a windmill is rotated by strong airflow, so that the windmill drives a gear to rotate, a main baffle is driven to move upwards to seal main heat dissipation holes through meshing of the gear and teeth, meanwhile, a linkage assembly drives a standby baffle to move, sealing of standby heat dissipation holes is relieved, and heat in the electric meter box body is dissipated through the standby heat dissipation holes. Therefore, the device can be conveniently used outdoors in windy weather.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, in particular to an electric meter box with a protective function. Background Art

[0002] The electric meter box is a device used to store electric meters. The electric meter box with protective function plays a vital role in the power system. The electric meter box is usually made of metal or composite materials, and has excellent properties such as anti-oxidation, anti-corrosion, and anti-vibration. It not only protects the electric meter from damage by the external environment, but also ensures the safe and stable operation of the power system.

[0003] The meter box is well designed and can effectively prevent non-professionals from opening it at will, avoiding safety accidents such as electric shock. The meter box is the entrance to the power supply and is usually installed on the outer wall of the house or in the indoor distribution room. It is responsible for introducing electricity from the power supply network into the home and recording the household's electricity consumption through the internal electricity metering device.

[0004] Some new electricity meter boxes use intelligent technology, which can monitor electricity usage in real time and upload the data to the cloud for analysis and processing. This not only improves the operating efficiency of the power system, but also provides users with a more convenient and intelligent electricity usage experience.

[0005] Factories require a large amount of electricity supply to support the operation of production equipment. The electric meter box not only needs to have electricity metering and protection functions, but also needs to have stronger stability and reliability. Shopping malls, office buildings, etc. also need electric meter boxes to manage power supply. The electricity consumption in these places is usually large and the electricity demand is volatile. The electric meter box needs to have higher adaptability and flexibility, be able to monitor electricity usage in real time, and intelligently dispatch and optimize electricity.

[0006] At present, the existing meter box is generally provided with heat dissipation holes on the side for dissipating the heat of the meter inside. However, when the meter box is set outdoors in windy weather, dust is easily blown into the meter box through the heat dissipation holes and attached to the meter. A large amount of dust adhesion can easily affect the meter reading and easily cause meter failure and current tripping, making the existing meter box not conducive to outdoor use in windy weather. Therefore, it does not meet the existing needs. We propose a meter box with a protective function. Summary of the invention

[0007] The present invention provides an electric meter box with a protective function, which has the beneficial effect of reducing dust from entering the electric meter box as much as possible, thereby making the existing electric meter box convenient for outdoor use in windy weather, and solves the problem mentioned in the above background technology that the existing electric meter box is generally provided with heat dissipation holes on the side for dissipating heat of the electric meter therein, but when the electric meter box is arranged outdoors in windy weather, dust is easily blown into the electric meter box through the heat dissipation holes and attached to the electric meter, and a large amount of dust adhesion is easy to affect the reading of the electric meter, and is also easy to cause the electric meter failure and current tripping, thereby making the existing electric meter box not conducive to outdoor use in windy weather.

[0008] The present invention provides the following technical solutions: an electric meter box with a protective function, comprising an electric meter box body and a main heat dissipation hole opened on the side wall of the electric meter box body, a rotating shaft is rotatably plugged into the side wall of the electric meter box body, a windmill is installed at one end of the rotating shaft located outside the electric meter box body, a gear is installed at one end of the rotating shaft located inside the electric meter box body, a main baffle is slidably provided on the inner wall of the electric meter box body, teeth are provided on the outer side of the main baffle, the teeth mesh with the gear, a spare heat dissipation hole is opened at the bottom of the electric meter box body, a spare baffle is slidably provided at the bottom of the electric meter box body, the spare baffle closes the spare heat dissipation hole, a heat dissipation cavity is provided below the electric meter box body, the heat dissipation cavity is connected with the spare heat dissipation hole, and a linkage group is provided between the main baffle and the spare baffle.

[0009] As an optional solution for an electric meter box with a protective function described in the present invention, a bearing is sleeved in the middle of the rotating shaft, the bearing is installed in the side wall of the electric meter box body, the rotating shaft is fitted with the inner ring of the bearing, and the inner wall of the electric meter box body is fitted with the outer ring of the bearing.

[0010] As an optional solution for an electric meter box with a protective function described in the present invention, the linkage assembly includes an electric lifting rod installed inside the electric meter box body, an insertion shaft installed on the inner wall of the electric meter box body, a lever rotatably installed in the middle of the insertion shaft, a first spring installed at one end of the lever, a first electric contact installed at the other end of the lever, a second electric contact arranged below the first electric contact, a third electric contact arranged above the first electric contact, a controller arranged on the side of the electric lifting rod, and a cable electrically connected between the electric lifting rod and the first electric contact, the second electric contact and the third electric contact are electrically connected to the controller through the cables respectively, the controller is electrically connected to an external power supply through the cables, and the controller is used to control the extension and retraction of the electric lifting rod.

[0011] As an optional solution for an electric meter box with a protective function described in the present invention, the telescopic end of the electric lifting rod is connected to the spare baffle, and the two ends of the first spring are respectively connected to the bottom of the lever and the inner wall of the electric meter box body.

[0012] As an optional solution for an electric meter box with a protective function described in the present invention, wherein: in an initial state, the main baffle is away from the main heat dissipation hole, and the spare baffle closes the spare heat dissipation hole, so that the interior of the electric meter box body can circulate with the outside air through the main heat dissipation hole, and the bottom of the main baffle is pressed on the end of the lever close to the first spring, the first spring is compressed, the first electric contact piece is separated from the second electric contact piece, and the first electric contact piece is in conflict with the third electric contact piece.

[0013] As an optional solution for an electric meter box with a protective function described in the present invention, wherein: a sliding rod is slidably inserted into the side wall of the electric meter box body, and a windward plate is installed at one end of the sliding rod located on the outside of the electric meter box body, and a second spring is installed on the outside of the windward plate. The number of the second springs is set to be several, one end of the second spring is connected to the windward plate, and the other end of the second spring is connected to the inner wall of the electric meter box body.

[0014] As an optional scheme for an electric meter box with a protective function described in the present invention, wherein: a first wedge block is installed at one end of the sliding rod located on the inner side of the electric meter box body, a second wedge block and a third wedge block are slidably arranged on the inner side of the electric meter box body, the second wedge block and the third wedge block are respectively slidably matched with the two sides of the first wedge block, a first connecting rod is respectively installed on the outer side of the second wedge block and the third wedge block, and limiting plates are installed on the ends of the two first connecting rods, the limiting plates are both arranged as arc-shaped plates, and the two limiting plates are jointly sleeved on the outer side of the rotating shaft.

[0015] As an optional solution of the electric meter box with protection function described in the present invention, wherein: sliders are installed on the two inclined surfaces of the first wedge block, and the inclined surfaces of the second wedge block and the third wedge block are respectively provided with sliding grooves used in conjunction with the sliders, and the sliders are slidably inserted in the sliding grooves; An empty slot is provided on the side of the rotating shaft, an insertion rod is rotatably arranged in the empty slot, a torsion spring is installed between the insertion rod and the rotating shaft, and a slot is provided on the inner side of each of the limiting plates, and the end of the insertion rod is slidably inserted in the slot.

[0016] As an optional solution for an electric meter box with a protective function described in the present invention, a second connecting rod is also installed at one end of the sliding rod located inside the electric meter box body, a mounting plate is installed at the end of the second connecting rod, an air pipe is installed on the side of the mounting plate, the air pipe is set to be a soft pipe, a spacer is set inside the air pipe, the number of the spacers is set to be several, the spacers are all connected to the inner wall of the air pipe, and air holes are opened in the middle of the spacers.

[0017] As an optional solution for an electric meter box with a protective function described in the present invention, a protrusion is installed on the outer side of the main baffle, and in an initial state, the protrusion abuts against the side of the air pipe.

[0018] The present invention has the following beneficial effects: 1. In the case of strong winds, the windmill of the electric meter box with protective function rotates due to strong airflow, so that the windmill drives the gear to rotate through the rotating shaft, and drives the main baffle to move up through the meshing of the gear and the teeth, thereby closing the main heat dissipation hole and preventing a large amount of dust from being blown into the electric meter box body as much as possible. At the same time, the upward moving main baffle releases the pressure on one end of the lever, and under the action of the first spring rebound force, the first electric contact piece descends and separates from the third electric contact piece and contacts with the second electric contact piece, so that the telescopic end of the electric lifting rod is controlled by the controller to extend outward, driving the spare baffle away from the spare heat dissipation hole, releasing the closure of the spare heat dissipation hole, so that the heat in the electric meter box body diffuses into the heat dissipation cavity through the spare heat dissipation hole, and the heat is exchanged with the side wall of the heat dissipation cavity and the earth, thereby achieving the heat dissipation effect; Subsequently, after the strong wind ends, the main baffle plate descends and resets under the action of its own gravity, releasing the blockage of the main heat dissipation hole, and the reset main baffle plate is pressed down on one end of the lever again, so that the first electric contact plate contacts the third electric contact plate, and the controller controls the telescopic end of the electric lifting rod to retract, so that the spare baffle plate closes the spare heat dissipation hole again, which is conducive to the outdoor use of the device in windy weather.

[0019] 2. For the electric meter box with protection function, when the wind speed is low: the inward thrust of the wind pressure on the windward plate is smaller than the supporting force of the second spring on the windward plate, so that the windward plate is fixed, at this time, the plug rod is inserted in the slot, the rotation of the rotating shaft is blocked, so that the windmill remains stationary; when the wind speed is high: the inward thrust of the wind pressure on the windward plate is larger than the supporting force of the second spring on the windward plate, so that the windward plate slides inward, and the second spring is compressed, at this time, the windward plate pushes the first wedge block inward through the sliding rod, and also pushes the air pipe backward through the second connecting rod, so that the air pipe is away from the protrusion, at the same time, through the cooperation of the first wedge block with the second wedge block and the third wedge block, the two limit plates are driven to move outward respectively, so that the plug rod slides out of the slot, the restriction on the rotation of the rotating shaft is released, and the windmill rotates, thereby closing the main heat dissipation hole; Moreover, when the strong wind ends, the windward plate is reset under the action of the rebound force of the second spring, driving the limit plate to reset, so that the plug rod is reinserted into the slot, and at this time the main baffle plate is lowered and reset, and the engagement of the teeth and the gear causes the shaft to rotate in the opposite direction, and the plug rod is squeezed by the limit plate and slides out of the slot, causing the plug rod to rotate into the empty slot, and the torsion spring is compressed, so that the shaft can rotate in the opposite direction without restriction, thereby allowing the main baffle plate to descend. In summary, when the strong wind weather reaches a certain intensity, the main baffle plate will close the main heat dissipation hole of the meter box body, thereby improving the use effect of the device.

[0020] 3. For the electric meter box with protective function, when a strong airflow blows through, the windward plate drives the mounting plate and the air pipe to reset through the second connecting rod, so that the protrusion is pressed against the side of the air pipe, and the air in the air pipe flows slowly through the air holes, so that the main baffle slowly drops down. Subsequently, another strong airflow blows through, and at this time the main baffle has not yet released the blockage of the main heat dissipation holes. When the strong airflows end, the main baffle slowly but continuously drops and resets, and then releases the blockage of the main heat dissipation holes, which is beneficial to enhance the dust blocking effect of the main baffle in weather with unstable strong airflows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the partial cutaway structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the local explosion structure of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting piece of the present invention.

[0027] Figure 7 It is a schematic diagram of the cross-section structure of the first wedge block of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-section structure of the rotating shaft of the present invention in the first state.

[0029] Fig. 9 It is a schematic diagram of the cross-section structure of the rotating shaft of the present invention in the second state.

[0030] Fig.10 It is a schematic diagram of the trachea cutaway structure of the present invention.

[0031] In the figure: 110, electric meter box body; 120, main heat dissipation hole; 130, rotating shaft; 131, bearing; 140, windmill; 150, gear; 160, main baffle; 170, teeth; 180, spare heat dissipation hole; 190, spare baffle; 200, heat dissipation cavity; 210, linkage assembly; 211, electric lifting rod; 212, plug shaft; 213, lever; 214, first spring; 215, first electric contact; 216, second electric contact; 217, third electric contact; 218, control Control device; 219, cable; 220, slide bar; 221, windward plate; 222, second spring; 230, first wedge block; 231, second wedge block; 232, third wedge block; 233, first connecting rod; 234, limit plate; 240, slider; 241, slide groove; 242, empty groove; 243, insert rod; 244, torsion spring; 245, slot; 250, second connecting rod; 251, mounting plate; 252, air pipe; 253, spacer; 254, air hole; 260, bump. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: This embodiment is intended to promote the solution of the problem that the existing electric meter box generally has a heat dissipation hole on the side for the electric meter inside. However, when the electric meter box is set outdoors in windy weather, dust is easily blown into the electric meter box through the heat dissipation hole and attached to the electric meter. A large amount of dust adhesion is easy to affect the reading of the electric meter, and it is also easy to cause the electric meter failure and current tripping, so that the existing electric meter box is not conducive to outdoor use in windy weather. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A meter box with a protective function includes a meter box body 110 and a main heat dissipation hole 120 opened on the side wall of the meter box body 110. A rotating shaft 130 is rotatably inserted into the side wall of the meter box body 110. A bearing 131 is sleeved in the middle of the rotating shaft 130. The bearing 131 is fixedly installed in the side wall of the meter box body 110. The rotating shaft 130 is fixedly fitted with the inner ring of the bearing 131, and the inner wall of the meter box body 110 is fixedly fitted with the outer ring of the bearing 131.

[0034] See Figure 1 and Figure 2A windmill 140 is fixedly installed at one end of the rotating shaft 130 located outside the meter box body 110, and there is enough gap between the windmill 140 and the outer wall of the meter box body 110 to avoid obstruction to the rotation of the windmill 140. A gear 150 is fixedly installed at one end of the rotating shaft 130 located inside the meter box body 110. A main baffle 160 is slidably provided on the inner wall of the meter box body 110. A tooth 170 is provided on the outer side of the main baffle 160. The tooth 170 is meshed with the gear 150. Figure 3 A spare heat dissipation hole 180 is opened at the bottom of the meter box body 110, and a spare baffle 190 is slidably set at the bottom of the meter box body 110. The spare baffle 190 closes the spare heat dissipation hole 180. A heat dissipation cavity 200 is set below the meter box body 110. The heat dissipation cavity 200 is connected to the spare heat dissipation hole 180, and a linkage component 210 is set between the main baffle 160 and the spare baffle 190.

[0035] See Figure 2 The linkage assembly 210 includes an electric lifting rod 211 fixedly installed inside the electric meter box body 110, an insertion shaft 212 installed on the inner wall of the electric meter box body 110, a lever 213 rotatably installed in the middle of the insertion shaft 212, a first spring 214 installed at one end of the lever 213, a first electric contact piece 215 installed at the other end of the lever 213, a second electric contact piece 216 arranged below the first electric contact piece 215, a third electric contact piece 217 arranged above the first electric contact piece 215, and a controller 21 arranged on the side of the electric lifting rod 211. 8. A cable 219 is electrically connected between the electric lifting rod 211 and the first electric contact 215. The second electric contact 216 and the third electric contact 217 are electrically connected to the controller 218 through the cable 219 respectively. The controller 218 is electrically connected to an external power supply through the cable 219. The controller 218 is used to control the extension and retraction of the electric lifting rod 211. The extension end of the electric lifting rod 211 is fixedly connected to the spare baffle 190. The two ends of the first spring 214 are fixedly connected to the bottom of the lever 213 and the inner wall of the meter box body 110 respectively.

[0036] In the initial state, the main baffle 160 is away from the main heat dissipation hole 120, and the spare baffle 190 closes the spare heat dissipation hole 180, so that the interior of the meter box body 110 can circulate with the outside air through the main heat dissipation hole 120, which is convenient for the heat inside the meter box body 110 to be dissipated through the main heat dissipation hole 120. The bottom of the main baffle 160 is pressed on one end of the lever 213 close to the first spring 214, the first spring 214 is compressed, the first electric contact piece 215 is separated from the second electric contact piece 216, and the first electric contact piece 215 is in conflict with the third electric contact piece 217.

[0037] In this embodiment: the electric lifting rod 211 is connected to the controller 218 through the cable 219, the first electric contact piece 215 and the third electric contact piece 217 in sequence, so that the telescopic end of the electric lifting rod 211 remains in a retracted state, so that the spare baffle 190 closes the spare heat dissipation hole 180, so that the heat inside the meter box body 110 is dissipated through the main heat dissipation hole 120; In windy weather, the windmill 140 rotates due to the strong airflow, so that the windmill 140 drives the gear 150 to rotate through the rotating shaft 130, and the main baffle 160 is driven to move upward through the meshing of the gear 150 and the teeth 170, so as to close the main heat dissipation hole 120 and prevent a large amount of dust from being blown into the meter box body 110 as much as possible. At the same time, the upward moving main baffle 160 releases the pressure on one end of the lever 213, and under the action of the rebound force of the first spring 214, the first electric The contact piece 215 descends and separates from the third electric contact piece 217 and contacts the second electric contact piece 216, so that the telescopic end of the electric lifting rod 211 is controlled by the controller 218 to extend outward, driving the spare baffle 190 away from the spare heat dissipation hole 180, releasing the sealing of the spare heat dissipation hole 180, so that the heat in the meter box body 110 diffuses into the heat dissipation cavity 200 through the spare heat dissipation hole 180, and the heat is exchanged with the side wall of the heat dissipation cavity 200 and the ground, thereby achieving the heat dissipation effect; Subsequently, after the strong wind ends, the main baffle 160 descends and resets under the action of its own gravity, releasing the closure of the main heat dissipation hole 120, and the reset main baffle 160 is pressed down on one end of the lever 213 again, so that the first electric contact 215 and the third electric contact 217 collide with each other, and the controller 218 controls the telescopic end of the electric lifting rod 211 to retract, so that the spare baffle 190 closes the spare heat dissipation hole 180 again, which is conducive to the outdoor use of the device in strong winds, and solves the problem that the side of the existing meter box is generally provided with heat dissipation holes for the heat dissipation of the electric meter therein, but when the meter box is set outdoors in strong winds, dust is easily blown into the meter box through the heat dissipation holes and attached to the meter, and a large amount of dust adhesion can easily affect the meter reading, and can also easily cause meter failure and current tripping, thereby making the existing meter box not conducive to outdoor use in strong winds.

[0038] Embodiment 2: This embodiment is intended to solve the problem that when the wind speed is low, the dust raised is very small and it is difficult to be blown into the meter box body 110 through the main heat dissipation hole 120. At this time, if the windmill 140 rotates to close the main heat dissipation hole 120, it is easy to affect the heat dissipation of the meter box body 110, thereby easily affecting the use effect of the device. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 A sliding rod 220 is slidably inserted into the side wall of the meter box body 110, and a windward plate 221 is fixedly installed at one end of the sliding rod 220 located on the outside of the meter box body 110. A second spring 222 is installed on the outside of the windward plate 221. The number of the second springs 222 is set to be several, one end of the second spring 222 is fixedly connected to the windward plate 221, and the other end of the second spring 222 is fixedly connected to the inner wall of the meter box body 110.

[0039] See Figure 4 , Figure 5 and Figure 6 A first wedge block 230 is fixedly installed on one end of the sliding rod 220 located on the inner side of the meter box body 110, and a second wedge block 231 and a third wedge block 232 are slidably arranged on the inner side of the meter box body 110. The second wedge block 231 and the third wedge block 232 are respectively slidably matched with the two sides of the first wedge block 230, and a first connecting rod 233 is respectively fixedly installed on the outer side of the second wedge block 231 and the third wedge block 232, and a limiting plate 234 is fixedly installed on the ends of the two first connecting rods 233. The limiting plates 234 are both configured as arc-shaped plates, and the two limiting plates 234 are jointly sleeved on the outer side of the rotating shaft 130.

[0040] Slide blocks 240 are fixedly installed on the two inclined surfaces of the first wedge block 230, and sliding grooves 241 used in conjunction with the slide blocks 240 are respectively opened on the inclined surfaces of the second wedge block 231 and the third wedge block 232. The slide blocks 240 are slidably inserted in the sliding grooves 241, so that the first wedge block 230 can always maintain sliding cooperation with the second wedge block 231 and the third wedge block 232. An empty groove 242 is opened on the side of the rotating shaft 130. The number of the empty grooves 242 is set to be several, and they are evenly opened on the outside of the rotating shaft 130 in an annular direction. Insert rods 243 are rotatably set in the empty grooves 242, and a torsion spring 244 is installed between the insert rod 243 and the rotating shaft 130. A slot 245 is opened on the inner side of the limiting plate 234, and the end of the insert rod 243 is slidably inserted in the slot 245.

[0041] In this embodiment, when the wind speed is low, the inward thrust of the windward plate 221 by the wind pressure is smaller than the supporting force of the second spring 222 on the windward plate 221, so that the windward plate 221 is fixed. At this time, the insertion rod 243 is inserted into the slot 245, and the rotation of the rotating shaft 130 is blocked, so that the windmill 140 remains stationary. When the wind speed is high, the inward thrust of the windward plate 221 by the wind pressure is larger than the supporting force of the second spring 222 on the windward plate 221, so that the windward plate 221 slides inward, and the second spring 222 is compressed. At this time, The windward plate 221 pushes the first wedge block 230 inwards through the sliding rod 220, and also pushes the air pipe 252 backwards through the second connecting rod 250, so that the air pipe 252 is away from the protrusion 260. At the same time, the first wedge block 230 cooperates with the second wedge block 231 and the third wedge block 232 to drive the two limiting pieces 234 to move outwards respectively, so that the insertion rod 243 slides out of the slot 245, and the restriction on the rotation of the rotating shaft 130 is released, so that the windmill 140 rotates, thereby closing the main heat dissipation hole 120. Moreover, when the strong wind ends, the windward plate 221 is reset under the action of the rebound force of the second spring 222, driving the limit plate 234 to reset, so that the insertion rod 243 is reinserted into the slot 245, and at this time the main baffle 160 is lowered and reset, and the engagement of the teeth 170 with the gear 150 causes the rotating shaft 130 to rotate in the opposite direction, and the insertion rod 243 is squeezed by the limit plate 234 and slides out of the slot 245, so that the insertion rod 243 rotates into the empty slot 242, and the torsion spring 244 is compressed, so that the rotation of the rotating shaft 130 in the opposite direction is not restricted, so that the main baffle 160 can be lowered. In summary, when the strong wind weather reaches a certain intensity, the main baffle 160 will close the main heat dissipation hole 120 of the meter box body 110, thereby improving the use effect of the device.

[0042] Embodiment 3: This embodiment is intended to solve the problem that when strong airflow blows through, the main baffle 160 is frequently lowered and reset, which may affect the main baffle 160 from blocking dust. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Fig.10 ,See Figure 4 and Figure 5 The sliding rod 220 is also fixedly mounted on one end of the meter box body 110 with a second connecting rod 250, a mounting plate 251 is fixedly mounted on the end of the second connecting rod 250, and an air pipe 252 is mounted on the side of the mounting plate 251. The air pipe 252 is set as a soft pipe. Fig.10A spacer 253 is arranged inside the air pipe 252, and the number of the spacers 253 is evenly set to be several. The spacers 253 are fixedly connected to the inner wall of the air pipe 252, and air holes 254 are opened in the middle of the spacers 253. A protrusion 260 is fixedly installed on the outer side of the main baffle 160. In the initial state, the protrusion 260 abuts against the side of the air pipe 252.

[0043] In the present embodiment, when a strong airflow blows through, the windward plate 221 drives the mounting plate 251 and the air pipe 252 to reset through the second connecting rod 250, so that the protrusion 260 is pressed against the side of the air pipe 252, and the air in the air pipe 252 flows slowly through the air hole 254, thereby causing the main baffle 160 to slowly drop. Subsequently, another strong airflow blows through, and at this time the main baffle 160 has not yet released the blockage of the main heat dissipation hole 120. When the strong airflows end, the main baffle 160 slowly but continuously drops and resets, and then releases the blockage of the main heat dissipation hole 120, which is beneficial for enhancing the dust blocking effect of the main baffle 160 in weather with unstable strong airflows.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electric meter box with a protective function, comprising an electric meter box body (110) and a main heat dissipation hole (120) provided on a side wall of the electric meter box body (110), characterized in that: A rotating shaft (130) is rotatably plugged into the side wall of the meter box body (110); a windmill (140) is installed at one end of the rotating shaft (130) located outside the meter box body (110); a gear (150) is installed at one end of the rotating shaft (130) located inside the meter box body (110); a main baffle (160) is slidably provided on the inner wall of the meter box body (110); teeth (170) are provided on the outer side of the main baffle (160); the teeth (170) and the gear (150) are rotatably connected to each other. The electric meter box body (110) is meshed, a spare heat dissipation hole (180) is provided at the bottom, a spare baffle (190) is slidably provided at the bottom of the electric meter box body (110), the spare baffle (190) closes the spare heat dissipation hole (180), a heat dissipation cavity (200) is provided below the electric meter box body (110), the heat dissipation cavity (200) is communicated with the spare heat dissipation hole (180), and a linkage component (210) is provided between the main baffle (160) and the spare baffle (190).

2. The electric meter box with protection function according to claim 1, characterized in that: A bearing (131) is sleeved on the middle of the rotating shaft (130), and the bearing (131) is installed in the side wall of the meter box body (110). The rotating shaft (130) fits with the inner ring of the bearing (131), and the inner wall of the meter box body (110) fits with the outer ring of the bearing (131).

3. The electric meter box with protection function according to claim 1, characterized in that: The linkage assembly (210) comprises an electric lifting rod (211) installed inside the meter box body (110), and an insertion shaft (212) installed on the inner wall of the meter box body (110); a lever (213) is rotatably installed in the middle of the insertion shaft (212); a first spring (214) is installed at one end of the lever (213); a first electric contact (215) is installed at the other end of the lever (213); a second electric contact (216) is arranged below the first electric contact (215); a third electric contact (217) is arranged above the first electric contact (215); a controller (218) is arranged on the side of the electric lifting rod (211); and a cable (219) is electrically connected between the electric lifting rod (211) and the first electric contact (215); The second electric contact piece (216) and the third electric contact piece (217) are respectively electrically connected to the controller (218) via the cable (219); the controller (218) is electrically connected to an external power source via the cable (219); and the controller (218) is used to control the extension and retraction of the electric lifting rod (211).

4. The electric meter box with protection function according to claim 3 is characterized in that: The telescopic end of the electric lifting rod (211) is connected to the spare baffle (190), and the two ends of the first spring (214) are respectively connected to the bottom of the lever (213) and the inner wall of the meter box body (110).

5. The electric meter box with protection function according to claim 3 is characterized in that: In an initial state, the main baffle (160) is away from the main heat dissipation hole (120), and the standby baffle (190) closes the standby heat dissipation hole (180), so that the interior of the meter box body (110) is circulated with external air through the main heat dissipation hole (120), and the bottom of the main baffle (160) is pressed against one end of the lever (213) close to the first spring (214), the first spring (214) is compressed, the first electric contact piece (215) is separated from the second electric contact piece (216), and the first electric contact piece (215) is in contact with the third electric contact piece (217).

6. The electric meter box with protection function according to claim 1, characterized in that: A sliding rod (220) is slidably inserted into the side wall of the meter box body (110); a windward plate (221) is installed at one end of the sliding rod (220) located outside the meter box body (110); a second spring (222) is installed outside the windward plate (221); the number of the second springs (222) is set to be a plurality; one end of each of the second springs (222) is connected to the windward plate (221); and the other end of each of the second springs (222) is connected to the inner wall of the meter box body (110).

7. The electric meter box with protection function according to claim 6, characterized in that: A first wedge block (230) is installed at one end of the sliding rod (220) located inside the meter box body (110), and a second wedge block (231) and a third wedge block (232) are slidably arranged inside the meter box body (110), the second wedge block (231) and the third wedge block (232) are respectively slidably matched with two sides of the first wedge block (230), and first connecting rods (233) are respectively installed outside the second wedge block (231) and the third wedge block (232), and limiting plates (234) are installed at the ends of the two first connecting rods (233), and the limiting plates (234) are both arranged as arc-shaped plates, and the two limiting plates (234) are jointly sleeved on the outside of the rotating shaft (130).

8. The electric meter box with protection function according to claim 7, characterized in that: Slide blocks (240) are installed on both inclined surfaces of the first wedge block (230); and slide grooves (241) for use with the slide blocks (240) are respectively provided on the inclined surfaces of the second wedge block (231) and the third wedge block (232); and the slide blocks (240) are slidably inserted in the slide grooves (241); A slot (242) is provided on the side of the rotating shaft (130), an insertion rod (243) is rotatably arranged in the slot (242), a torsion spring (244) is installed between the insertion rod (243) and the rotating shaft (130), a slot (245) is provided on the inner side of each of the limiting plates (234), and an end of the insertion rod (243) is slidably inserted in the slot (245).

9. The electric meter box with protection function according to claim 6, characterized in that: A second connecting rod (250) is also installed at one end of the sliding rod (220) located inside the electric meter box body (110); a mounting plate (251) is installed at the end of the second connecting rod (250); an air pipe (252) is installed on the side of the mounting plate (251); the air pipe (252) is configured as a soft pipe; a spacer (253) is provided inside the air pipe (252); the number of the spacers (253) is configured as a plurality; the spacers (253) are all connected to the inner wall of the air pipe (252); and air holes (254) are provided in the middle of the spacers (253).

10. The electric meter box with protection function according to claim 9, characterized in that: A protrusion (260) is installed on the outer side of the main baffle (160), and in an initial state, the protrusion (260) abuts against the side of the air pipe (252).

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