A metering box with a locking and sealing device

Abstract

The present invention belongs to the technical field of meter boxes, and discloses a meter box with a locking and sealing device, including a meter box assembly and a locking and sealing device installed inside the meter box; the meter box assembly includes a box body, heat dissipation holes are opened on both sides of the box body, and a conical groove is opened at the inner end of the heat dissipation hole; the locking and sealing device includes a fixed rod suitable for being moved up and down by a passive action, the outer wall of the fixed rod is fixedly connected to a top cover, the bottom of the top cover is fixedly connected to a corrugated telescopic sleeve, the bottom of the corrugated telescopic sleeve is fixedly connected to a connecting tube, the top cover, the corrugated telescopic sleeve and the connecting tube are connected to form a compression chamber; the bottom of the connecting tube is fixedly connected to an exhaust pipe connected to the compression chamber, and the bottom of the connecting tube is fixedly connected to a mounting plate. In the present invention, the expansion gas sleeve is expanded into the heat dissipation hole, and the outer wall of the expansion gas sleeve is fully fitted with the inner wall of the conical groove to achieve a sealing effect, thereby preventing rainwater from entering the box body, causing short circuit, leakage, damage to electrical components, and causing safety accidents.

Description

Technical Field

[0001] The present invention relates to the field of metering boxes, and more particularly to a metering box with a locking and sealing device. Background Art

[0002] The main function of the electricity meter box is to accurately measure the electricity consumption of users or equipment. Through metering elements such as electricity meters, electricity data can be recorded in real time or periodically, providing an accurate basis for electricity bill settlement and energy management.

[0003] In existing electricity meter box designs, heat dissipation holes are usually opened on the box to ensure the heat dissipation performance of the electrical components inside the box. Although these heat dissipation holes effectively solve the heat dissipation problem of the electrical components, in severe weather conditions such as rainy days, rainwater can easily enter the box through the heat dissipation holes, causing electrical components to short-circuit, leak, damage, and even cause safety accidents. In view of this, we propose a meter box with a locking and sealing device. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a metering box with a locking and sealing device. By expanding the expansion sleeve and expanding it into the heat dissipation hole, the outer wall of the expansion sleeve fully fits the inner wall of the conical groove, achieving a sealing effect. This prevents rainwater from entering the box and causing short circuits, leakage, damage to electrical components, and even safety accidents.

[0005] A metering box with a locking and sealing device, comprising a metering box assembly and a locking and sealing device installed inside the metering box assembly;

[0006] The meter box assembly includes a box body, both sides of the box body are provided with heat dissipation holes, and the inner ends of the heat dissipation holes are provided with cone grooves;

[0007] The locking and sealing device includes a fixed rod adapted to be moved up and down by an action, the outer wall of the fixed rod is fixedly connected to a top cover, the bottom of the top cover is fixedly connected to a bellows telescopic sleeve, the bottom of the bellows telescopic sleeve is fixedly connected to a connecting tube, and the top cover, the bellows telescopic sleeve and the connecting tube are connected to form a compression chamber;

[0008] The bottom of the connecting cylinder is fixedly connected to an exhaust pipe connected to the compression chamber, the bottom of the connecting cylinder is fixedly connected to a mounting plate, the bottom of the exhaust pipe is fixedly connected to the inner wall of the mounting plate, the inner wall of the mounting plate is fixedly connected to an expansion gas sleeve, the expansion chamber of the expansion gas sleeve is connected to the exhaust pipe, a positioning groove is provided at the bottom of the mounting plate, the inner wall of the box is fixedly connected to a limiting arc plate, the positioning groove is suitable for clamping with the limiting arc plate to limit the movement of the mounting plate, and the expansion gas sleeve is suitable for being expanded when the positioning groove and the limiting arc plate are clamped to be sealed with the conical groove, thereby sealing the corresponding heat dissipation hole.

[0009] The cam is fixedly provided with a first sliding rod on each side of the inner wall of the box body, and a limit groove is provided on each side of the inner wall of the box body, and the connecting tube is slidably connected to the inner wall of the corresponding limit groove. The outer wall of the connecting tube is fixedly connected to a sliding block arranged corresponding to the first sliding rod, and the sliding block is slidably connected to the corresponding first sliding rod at the top of the sliding block. The end of the second telescopic sleeve is fixedly connected to the outer wall of the top cover. The connecting plate is fixedly connected to the corresponding second telescopic rod, the outer wall of the corrugated telescopic sleeve is fixedly connected to the slide plate, and the slide plate is slidably connected to the corresponding second telescopic rod. A piston is slidably connected to the corrugated telescopic sleeve in a chamber forming a compression chamber, and the top of the piston is fixedly connected to the fixed rod. A second spring is provided in the connecting tube, the top of the second spring abuts against the piston, and the bottom of the second spring abuts against the bottom of the inner wall of the connecting tube.

[0010] Preferably, the locking and sealing device further comprises an electric push rod, the electric push rod is fixedly connected to the inner wall of the box, the output end of the electric push rod is fixedly connected to a support rod, the two ends of the support rod are respectively fixedly connected to an extension shaft, the outer wall of the extension shaft is rotatably connected to the first telescopic rod, the outer wall of the first telescopic rod is slidably connected to the first telescopic sleeve, the outer wall of the first telescopic sleeve is fixedly connected to the connecting shaft, the end of the connecting shaft passes through the box and is rotatably connected thereto, the outer wall of the first telescopic rod is slidably connected to a sliding ring, and the outer wall of the sliding ring is fixedly connected to the corresponding fixed rod;

[0011] The ends of the extension shafts are embedded with rotatable balls, and both sides of the inner wall of the box are provided with rolling grooves, and the balls are rollingly connected with the corresponding rolling grooves.

[0012] Preferably, the heat dissipation hole is a tapered hole that gradually shrinks from the inside to the outside, the diameter of the heat dissipation hole decreases from the inside to the outside, a filter is installed on the inner wall of the heat dissipation hole, and a plurality of grooves are opened on the circumferential outer wall of the filter.

[0013] Preferably, mounting grooves are provided on both sides of the box body, the inner walls of the mounting grooves are fixedly connected to second sealing strips, and the outer wall of the box body is rotatably connected to two rotating shafts.

[0014] Preferably, the metering box assembly also includes two box doors, which are connected to the box body through corresponding rotating shafts, and the outer side of the box door is formed with a convex portion, which is squeezed into contact with the corresponding second sealing strip, and the inner sides of the two box doors are fixedly connected with a first sealing strip, and an anti-theft lock is installed between the inner sides of the two box doors. Movable holes are provided at the top and bottom of the outer side of the box door, and a second sliding rod is fixedly connected to the inner wall of the movable hole, and a first spring is sleeved on the outer wall of the second sliding rod, and the end of the rotating shaft passes through the movable hole and extends to its outside, and the second sliding rod passes through the rotating shaft and is slidably connected to it, one end of the first spring abuts against the rotating shaft, and the other end of the first spring abuts against the inner wall of the box door.

[0015] Preferably, it also includes a drainage assembly installed on the top of the metering box assembly, the drainage assembly includes a box top, a first arc groove and a second arc groove are provided at the bottom of the box top, a drainage edge is formed at the connection between the first arc groove and the second arc groove, the edge of the second arc groove away from the drainage edge is a first oblique edge, the edge on the side wall of the box top that intersects with the bottom end of the first oblique edge is a second oblique edge, the first oblique edge and the second oblique edge are both inclined, the lower ends of the first oblique edge and the second oblique edge are intersecting ends, the drainage edge is inclined, and the drainage edge is located between the first arc groove and the second arc groove.

[0016] Preferably, the box top is fixedly installed on the top of the box body, a water collecting trough is provided on the top of the box top, a drainage hole connected to the water collecting trough is provided on the box top, and the drainage hole passes through the second arc groove and is connected thereto.

[0017] Preferably, a mounting hole is provided on the top of the box roof, the mounting hole is connected to the drainage hole, a water flow sensor is provided in the mounting hole, a blocking rod is slidably connected to the inner wall of the drainage hole, a linkage mechanism is provided between the connecting shaft and the blocking rod, and the connecting shaft is suitable for driving the blocking rod to slide in the drainage hole through the linkage mechanism to open or close the communication channel between the drainage hole and the second arc groove;

[0018] The metering box also includes a controller, which is connected to the water flow sensor and the electric push rod. The controller is suitable for controlling the action of the electric push rod according to the signal feedback from the water flow sensor. The dynamic mechanism includes a fixed block, which is fixedly connected to the blocking rod. The outer wall of the fixed block is rotatably connected to the first arm, and the end of the first arm is rotatably connected to the second arm, and the second arm is fixedly connected to the connecting shaft.

[0019] Preferably, the side wall of the box is fixedly connected to a water pipe corresponding to the second arc groove, the filter is slidably connected to the heat dissipation hole, the outer wall of the filter can be fixedly connected to a plurality of fan blades in a ring array structure, the inner wall of the filter is rotatably connected to a support shaft, the end of the support shaft is fixedly connected to a push plate, the two ends of the push plate respectively extend to the grooves on the inner wall of the heat dissipation hole, and a third sliding rod is fixedly connected to the grooves, and the outer wall of the third sliding rod is sleeved with a third spring, the end of the third sliding rod passes through the push plate and is slidably connected to it, one end of the third spring abuts against the box, and the other end of the third spring abuts against the push plate, the drainage hole passes through the second arc groove to form an outlet, and the outlet is connected to the inlet of the corresponding water pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The fixing rod drives the top cover and the piston to move. At this time, the connecting tube slides downward along the limit groove, and the connecting tube drives the slider to slide along the outer wall of the first slide rod. When the connecting tube moves, it drives the mounting plate to move until the positioning groove at the bottom of the mounting plate is stuck on the limit arc plate. At this time, the mounting plate is located at the heat dissipation hole position and cannot move downward. The fixing rod continues to move until the piston slides into the connecting tube, and the second spring is compressed. When the top cover moves, the second telescopic rod is driven by the connecting plate to slide along the inner wall of the second telescopic sleeve, so that the corrugated telescopic sleeve is compressed. The air between the connecting tube and the corrugated telescopic sleeve is compressed and discharged into the expansion gas sleeve on the mounting plate through the exhaust pipe. At this time, the expansion gas sleeve expands and expands into the heat dissipation hole. The outer wall of the expansion gas sleeve is fully fitted with the inner wall of the cone groove to achieve a sealing effect. This design can prevent rainwater from entering the box body under severe weather conditions such as rainy days, causing electrical components to short-circuit, leak, damage, and even cause safety accidents.

[0022] 2. The bellows shrinks and stacks during the compression process, which discharges the air inside the bellows. At the same time, it prevents the air in the connecting tube from entering the top of the piston when the piston stops moving, causing the amount of gas in the mounting plate to decrease, resulting in a loose seal between the expansion sleeve and the cone groove, causing rainwater to enter the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2Schematic diagram of the internal structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the meter box assembly of the present invention;

[0027] Figure 4 Schematic diagram of the internal structure of the box of the present invention;

[0028] Figure 5 It is a schematic diagram of the partial structure of the box body of the present invention;

[0029] Figure 6 Schematic diagram of the overall structure of the filter screen of the present invention;

[0030] Figure 7 For the present invention Figure 4 Enlarged view of point A in the middle;

[0031] Figure 8 It is a schematic diagram of the partial structure of the door of the present invention;

[0032] Figure 9 Schematic diagram of the installation structure of the second sealing strip of the present invention;

[0033] Figure 10 This is a schematic diagram of the overall structure of the drainage assembly of the present invention;

[0034] Figure 11 It is a schematic diagram of the partial structure of the box top of the present invention;

[0035] Figure 12 For the present invention Figure 10 Enlarged view of point B in the middle;

[0036] Figure 13 Schematic diagram of the overall structure of the locking and sealing device of the present invention;

[0037] Figure 14 This is a schematic diagram of the installation structure of the installation disk of the present invention;

[0038] Figure 15 Schematic diagram of the installation structure of the piston of the present invention;

[0039] Figure 16 This is a schematic diagram of the installation structure of the expansion sleeve of the present invention;

[0040] Figure 17 Schematic diagram of the structure of the limiting arc plate of the present invention;

[0041] Figure 18 For the present invention Figure 13 Enlarged view of point C in the middle;

[0042] Figure 19 Schematic diagram of the installation structure of the fan blade of the present invention;

[0043] Figure 20 It is a schematic diagram of the installation structure of the push plate of the present invention.

[0044] Description of the numbers in the figure:

[0045] 1. Metering box assembly; 101. Box body; 102. Heat dissipation holes; 103. Conical groove; 104. Rolling groove; 105. Mounting groove; 106. Limiting groove; 107. Slide groove; 108. First slide bar; 109. Filter screen; 110. Strainer groove; 111. Rotating shaft; 112. Box door; 113. First sealing strip; 114. Anti-theft lock; 115. Movable hole; 116. Second slide bar; 117. First spring; 118. Second sealing strip;

[0046] 2. Drain assembly; 201. Top of tank; 202. Sump; 203. Mounting hole; 204. Drain hole; 205. First arc groove; 206. Second arc groove; 2061. First bevel edge; 207. Drain edge; 208. Water flow sensor; 209. Blocking rod; 210. Fixing block; 211. First support arm; 212. Second support arm; 213. Second bevel edge;

[0047] 3. Locking and sealing device; 301. Electric push rod; 302. Support rod; 303. Extension shaft; 304. Ball bearing; 305. First telescopic rod; 306. First telescopic sleeve; 307. Connecting shaft; 308. Sliding ring; 309. Fixed rod; 310. Top cover; 311. Corrugated telescopic sleeve; 312. Connecting cylinder; 313. Sliding block; 314. Second telescopic sleeve; 315. Sliding hole; 316. Limit block; 317. Second telescopic rod; 318. Connecting plate; 319. Slide plate; 320. Piston; 321. Second spring; 322. Exhaust pipe; 323. Mounting plate; 324. Expansion sleeve; 325. Positioning groove; 326. Limiting arc plate;

[0048] 4. Water pipe; 5. Fan blades; 6. Support shaft; 7. Third slide bar; 8. Third spring; 9. Push plate. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The specific embodiments of the present invention are described in detail below in conjunction with the drawings in the specification.

[0050] Example 1: Figures 1-20As shown, a metering box with a locking and sealing device includes a metering box assembly 1 and a locking and sealing device 3 installed inside the metering box assembly 1;

[0051] The meter box assembly 1 includes a box body 101, both sides of the box body 101 are provided with heat dissipation holes 102, and the inner ends of the heat dissipation holes 102 are provided with tapered grooves 103;

[0052] The locking and sealing device 3 includes a fixed rod 309 adapted to be moved up and down by actuation, the outer wall of the fixed rod 309 is fixedly connected to a top cover 310, the bottom of the top cover 310 is fixedly connected to a bellows telescopic sleeve 311, the bottom of the bellows telescopic sleeve 311 is fixedly connected to a connecting tube 312; the top cover 310, the bellows telescopic sleeve 311 and the connecting tube 312 are connected to form a compression chamber, the bottom of the connecting tube 312 is fixedly connected to an exhaust pipe 322 communicating with the compression chamber, the bottom of the connecting tube 312 is fixedly connected to a mounting plate 323, the bottom of the exhaust pipe 322 is fixedly connected to the mounting plate 3 23, an expansion gas sleeve 324 is fixedly connected to the inner wall of the mounting plate 323, and the expansion chamber of the expansion gas sleeve 324 is communicated with the exhaust pipe 322. A positioning groove 325 is provided at the bottom of the mounting plate 323, and a limiting arc plate 326 is fixedly connected to the inner wall of the box body 101. The positioning groove 325 is suitable for engaging with the limiting arc plate 326 to limit the movement of the mounting plate 323; the expansion gas sleeve 324 is suitable for being expanded when the positioning groove 325 and the limiting arc plate 326 are engaged to be sealed with the conical groove 103, thereby sealing the corresponding heat dissipation hole 102;

[0053] In the present invention, the design of the conical groove 103 can reduce the friction between the expansion gas sleeve 324 and the inner edge of the heat dissipation hole 102 when the expansion gas sleeve 324 expands, while increasing the contact area between the expansion gas sleeve 324 and the heat dissipation hole 102, thereby improving the sealing accuracy and effect. In addition, the conical groove 103 can also reduce stress concentration and prevent the edges from scratching the expansion gas sleeve 324.

[0054] The design of the limiting arc plate 326 and the positioning groove 325 can first position the mounting plate 323 and then expand the expansion sleeve 324, thereby improving the sealing accuracy between the expansion sleeve 324 and the heat dissipation hole 102.

[0055] Specifically, two sliding grooves 107 are provided on both sides of the inner wall of the box body 101, and the inner walls of the sliding grooves 107 are fixedly connected to the first sliding rod 108; limiting grooves 106 are provided on both sides of the inner wall of the box body 101, and the connecting tube 312 is slidably connected to the corresponding inner wall of the limiting groove 106. The setting of the limiting groove 106 can limit the connecting tube 312, and the outer wall of the connecting tube 312 is fixedly connected with a slider 313 corresponding to the first sliding rod 108. The slider 313 is slidably connected to the first sliding rod 108. The setting of the slider 313 and the corresponding first sliding rod 108 can limit the distance between the mounting plate 323 and the inner wall of the box body 101 to prevent the mounting plate 323 from moving when the expansion gas sleeve 324 expands, affecting the sealing effect. The top of the slider 313 is fixedly connected to the second telescopic sleeve 314, and the outer wall of the second telescopic sleeve 314 is provided with a sliding Hole 315, the inner wall of the sliding hole 315 is slidably connected to the limit block 316, the inner wall of the second telescopic sleeve 314 is slidably connected to the second telescopic rod 317, the end of the second telescopic rod 317 is fixedly connected to the limit block 316, the outer wall of the top cover 310 is fixedly connected to the connecting plate 318 corresponding to the second telescopic rod 317, the connecting plate 318 is fixedly connected to the corresponding second telescopic rod 317, the outer wall of the corrugated telescopic sleeve 311 is fixedly connected to the slide plate 319, the slide plate 319 is slidably connected to the corresponding second telescopic rod 317, the corrugated telescopic sleeve 311 is slidably connected to the piston 320 in the chamber forming the compression chamber, the top of the piston 320 is fixedly connected to the fixed rod 309, a second spring 321 is provided in the connecting cylinder 312, the top of the second spring 321 abuts against the piston 320, and the bottom of the second spring 321 abuts against the bottom of the inner wall of the connecting cylinder 312;

[0056] The amount of gas inside the mounting plate 323 must remain constant to provide good sealing. In the prior art, the piston moves in a sleeve with a fixed shape. When the piston wears, it compresses the gas, causing some of the gas in the cylinder to enter the cylinder above the piston, resulting in insufficient air intake.

[0057] In the present invention, by installing the bellows expansion sleeve 311 on the top of the connecting tube 312, the fixing rod 309 drives the top cover 310 and the piston 320 to move, so that the bellows expansion sleeve 311 is fully compressed, which can prevent the air below the connecting tube 312 from entering the bellows expansion sleeve 311 above the piston 320, resulting in a reduction in the amount of gas entering the mounting plate 323, resulting in a loose seal between the expansion air sleeve 324 and the conical groove 103, and rainwater entering the box body 101.

[0058] Specifically, if Figures 13-18As shown, the locking and sealing device 3 also includes an electric push rod 301, which is fixedly connected to the inner wall of the box body 101, and the output end of the electric push rod 301 is fixedly connected to the support rod 302, and the two ends of the support rod 302 are respectively fixedly connected to the extension shaft 303, and the outer wall of the extension shaft 303 is rotatably connected to the first telescopic rod 305, and the outer wall of the first telescopic rod 305 is slidably connected to the first telescopic sleeve 306, and the outer wall of the first telescopic sleeve 306 is fixedly connected to the connecting shaft 307, and the end of the connecting shaft 307 passes through the box body 101 and is rotatably connected to it, and the outer wall of the first telescopic rod 305 is slidably connected to the sliding ring 308, and the outer wall of the sliding ring 308 is fixedly connected to the corresponding fixed rod 309. The setting of the first telescopic rod 305 and the first telescopic sleeve 306 can set part of the structure in the locking and sealing device 3 at the inner wall position of the box body 101, which is convenient for the installation of electrical components inside the box body 101, while ensuring that the fixed rod 309 can move a longer distance.

[0059] Specifically, rotatable balls 304 are embedded at the ends of the extension shafts 303, and rolling grooves 104 are opened on both sides of the inner wall of the box body 101, and the balls 304 are rollingly connected with the corresponding rolling grooves 104; the setting of the balls 304 can improve the stability of the support rod 302 when it moves.

[0060] Specifically, if Figure 5 and Figure 6 As shown, the heat dissipation hole 102 is a tapered hole that gradually shrinks from the inside to the outside. The diameter of the heat dissipation hole 102 decreases from the inside to the outside. A filter screen 109 is installed on the inner wall of the heat dissipation hole 102. A plurality of drainage grooves 110 are opened on the outer wall of the filter screen 109. This design enables rainwater at the circumferential edge of the heat dissipation hole 102 to be discharged through the tapered wall of the tapered hole and the drainage grooves 110.

[0061] Specifically, if Figure 4 and Figure 9 As shown, mounting grooves 105 are provided on both sides of the box body 101 , and second sealing strips 118 are fixedly connected in the mounting grooves 105 . Two rotating shafts 111 are rotatably connected to the outer wall of the box body 101 .

[0062] Specifically, if Figure 8 and Figure 9As shown, the metering box assembly 1 also includes two box doors 112, and the box doors 112 are connected to the box body 101 through corresponding rotating shafts 111. The outer side of the box door 112 is convexly formed with a convex portion, and the convex portion is squeezed and contacted with the corresponding second sealing strip 118. The squeezing contact of the second sealing strip 118 and the convex portion can improve the sealing between the box door 112 and the box body 101, and prevent rainwater from entering the interior of the box body 101 along the gap between the box door 112 and the box body 101 under the action of wind; the inner sides of the two box doors 112 are fixedly connected with a first sealing strip 113, and the first sealing strip 113 can improve the sealing between the box doors 112. An anti-theft lock 114 is installed between the inner sides of the two box doors 112. The box door 1 Movable holes 115 are provided at the top and bottom of the outer side of 12, and a second sliding rod 116 is fixedly connected to the inner wall of the movable hole 115, and a first spring 117 is sleeved on the outer wall of the second sliding rod 116. The end of the rotating shaft 111 passes through the movable hole 115 and extends to its outside, and the second sliding rod 116 passes through the rotating shaft 111 and is slidably connected thereto, one end of the first spring 117 abuts against the rotating shaft 111, and the other end of the first spring 117 abuts against the inner wall of the box door 112; under the elastic force of the first spring 117, when closing, the side wall of the box door 112 can be fully squeezed and contacted with the first sealing strip 113, and at the same time, the convex part of the box door 112 and the second sealing strip 118 will be fully squeezed to improve the sealing effect.

[0063] Specifically, if Figure 1 、 Figure 10 and Figure 11 As shown, the metering box also includes a drainage assembly 2 installed on the top of the metering box assembly 1, and the drainage assembly 2 includes a box top 201. A first arc groove 205 and a second arc groove 206 are provided at the bottom of the box top 201. A drainage edge 207 is formed at the connection between the first arc groove 205 and the second arc groove 206. The edge of the second arc groove 206 away from the drainage edge 207 is a first oblique edge 2061. The edge on the side wall of the box top 201 that intersects with the bottom end of the first oblique edge 2061 is a second oblique edge 213. The first oblique edge 2061 and the second oblique edge 213 are both inclined. The first oblique edge 2061 is inclined from the initial end to the second oblique edge 213. , and the height decreases gradually. The second oblique edge 213 extends from the initial end to the connection with the first oblique edge 2061 and the height decreases gradually. The lower ends of the first oblique edge 2061 and the second oblique edge 213 are the intersecting ends. The drainage edge 207 is inclined. The drainage edge 207 extends from the initial end to the bottom end near the first oblique edge 2061 and the height decreases gradually. The drainage edge 207 is located between the first arc groove 205 and the second arc groove 206. The arrangement of the drainage edge 207, the first oblique edge 2061 and the second oblique edge 213 can make rainwater drip along the lower end thereof, thereby preventing rainwater from flowing into the box body 101 along the edges.

[0064] Specifically, if Figure 11As shown, the box top 201 is fixedly installed on the top of the box body 101, and a water collecting trough 202 is opened on the top of the box top 201. A drainage hole 204 connected to the water collecting trough 202 is opened on the box top 201, and the drainage hole 204 passes through the second arc groove 206 and is connected thereto.

[0065] Specifically, if Figure 12 As shown, a mounting hole 203 is provided on the top of the box top 201, and the mounting hole 203 is connected to the drainage hole 204. A water flow sensor 208 is provided in the mounting hole 203, and a blocking rod 209 is slidably connected in the drainage hole 204. A linkage mechanism is provided between the connecting shaft 307 and the blocking rod 209, and the connecting shaft 307 is suitable for driving the blocking rod 209 to slide in the drainage hole 204 through the linkage mechanism to open or close the communication channel between the drainage hole 204 and the second arc groove 206. The metering box also includes a controller, which is connected to the water flow sensor 208 and the electric push rod 301, and the controller is suitable for controlling the action of the electric push rod 301 according to the signal feedback from the water flow sensor 208.

[0066] Specifically, the linkage mechanism includes a fixed block 210, which is fixedly connected to the blocking rod 209. The outer wall of the fixed block 210 is rotatably connected to the first arm 211, and the end of the first arm 211 is rotatably connected to the second arm 212. The second arm 212 is fixedly connected to the connecting shaft 307.

[0067] Working principle: The electrical components inside the box 101 are cooled through the mesh of the filter 109, and the filter 109 filters the dust in the external air;

[0068] The water collection trough 202 on the top of the box roof 201 can collect rainwater in a centralized manner. The rapidly accumulated rainwater enters the drainage hole 204. The water flow sensor 208 senses the rainwater. At this time, the controller in the box body 101 controls the electric push rod 301 to operate. The output end of the electric push rod 301 contracts to drive the support rod 302 to move. The support rod 302 drives the first telescopic rod 305 to move through the extension shaft 303. The extension shaft 303 drives the ball 304 to roll along the inner wall of the rolling groove 104. The first telescopic rod 305 slides along the inner wall of the first telescopic sleeve 306. The first telescopic sleeve 306 drives the connecting shaft 307 to rotate.

[0069] When the connecting shaft 307 rotates, it drives the second arm 212 to rotate. The second arm 212 drives the blocking rod 209 to slide outward along the inner wall of the drainage hole 204 through the first arm 211. At this time, the rainwater inside the sump 202 can be discharged into the second arc groove 206 through the drainage hole 204 and discharged through the second arc groove 206.

[0070] At the same time, when the first telescopic rod 305 moves, the sliding ring 308 moves, and the sliding ring 308 drives the fixed rod 309 to move. Under the elastic support of the second spring 321, the fixed rod 309 drives the top cover 310 and the piston 320 to move. At this time, the connecting cylinder 312 slides downward along the limiting groove 106, and the connecting cylinder 312 drives the slider 313 to slide along the outer wall of the first sliding rod 108. When the connecting cylinder 312 moves, it drives the mounting plate 323 to move until the positioning groove 325 at the bottom of the mounting plate 323 is stuck on the limiting arc plate 326. At this time, the mounting plate 323 is located at the heat dissipation hole 102 and cannot move downward.

[0071] The fixing rod 309 continues to move until the piston 320 slides into the connecting tube 312, the second spring 321 is compressed, and when the top cover 310 moves, the second telescopic rod 317 is driven by the connecting plate 318 to slide along the inner wall of the second telescopic sleeve 314, so that the corrugated telescopic sleeve 311 is compressed. The air between the connecting tube 312 and the corrugated telescopic sleeve 311 is compressed and discharged into the expansion gas sleeve 324 on the mounting plate 323 through the exhaust pipe 322. At this time, the expansion gas sleeve 324 expands and expands into the heat dissipation hole 102. The outer wall of the expansion gas sleeve 324 fully fits the inner wall of the cone groove 103, achieving a sealing effect and preventing rainwater from entering the interior of the box body 101.

[0072] If rainwater enters the heat dissipation hole 102 from the outside, it is blocked by the expansion gas sleeve 324 and is discharged from the box body 101 through the heat dissipation hole 102 and the drainage groove 110;

[0073] The bellows 311 contracts and stacks during the compression process, expelling the air inside the bellows 311. This also prevents the air inside the connecting tube 312 from entering the piston 320 when the piston 320 stops moving, which would reduce the amount of gas inside the mounting plate 323 and cause a loose seal between the expansion sleeve 324 and the conical groove 103, allowing rainwater to enter the box body 101.

[0074] After the rain stops, the controller controls the electric push rod 301 to operate, and the output end of the electric push rod 301 extends, pushing the support rod 302 to move. The support rod 302 drives the first telescopic rod 305 to slide into the first telescopic sleeve 306. At this time, the first telescopic sleeve 306 drives the connecting shaft 307 to rotate in the opposite direction, and the sliding ring 308 drives the fixed rod 309 to move upward, thereby pulling the top cover 310 and the piston 320 to move. Under the elastic force of the second spring 321, the corrugated telescopic sleeve 311 is extended, so that the space between the connecting tube 312 and the corrugated telescopic sleeve 311 increases. At this time, the air inside the mounting plate 323 enters the connecting tube 312. At this time, the expansion gas sleeve 324 contracts and moves out from the inside of the heat dissipation hole 102. Until the corrugated telescopic sleeve 311 is fully extended, the fixed rod 309 continues to move, driving the connecting tube 312 and the mounting plate 323 to move upward and move away from the end of the heat dissipation hole 102, thereby facilitating heat dissipation.

[0075] In addition, in this embodiment, the door 112 is opened by the anti-theft lock 114. At this time, under the pulling force of the first spring 117, the shaft 111 slides toward the other end of the second slide bar 116, and the convex portion of the door 112 is separated from the contact with the second sealing strip 118. When the door 112 is closed, the doors 112 squeeze the first sealing strip 113 against each other, and the shaft 111 slides in the opposite direction along the second slide bar 116. The first spring 117 is stretched, so that the convex portion of the door 112 squeezes the second sealing strip 118, thereby achieving a sealing effect.

[0076] Example 2: The structure of this example is basically the same as that of Example 1, except that: Figure 19 and Figure 20 As shown, the side wall of the box body 101 is fixedly connected to the water pipe 4 arranged corresponding to the second arc groove 206, the filter screen 109 is slidably connected to the heat dissipation hole 102, and the outer wall of the filter screen 109 can be fixedly connected to a plurality of fan blades 5 in a ring array structure. The inner wall of the filter screen 109 is rotatably connected to the support shaft 6, and the end of the support shaft 6 is fixedly connected to the push plate 9. The two ends of the push plate 9 extend into the grooves on the inner wall of the heat dissipation hole 102 respectively, and the third slide rod 7 is fixedly connected in the groove. The outer wall of the third slide rod 7 is sleeved with a third spring 8, and the end of the third slide rod 7 passes through the push plate 9 and is slidably connected thereto. One end of the third spring 8 abuts against the box body 101, and the other end of the third spring 8 abuts against the push plate 9. The drainage hole 204 passes through the second arc groove 206 to form an outlet, and the outlet is connected to the inlet of the corresponding water pipe 4.

[0077] When the expansion gas sleeve 324 expands into the heat dissipation hole 102, the raised part of the expansion gas sleeve 324 will squeeze the push plate 9 toward the outside of the heat dissipation hole 102. At this time, the third spring 8 acts in the opposite direction on the push plate 9, and the push plate 9 acts in the opposite direction on the middle part of the expansion gas sleeve 324, so that the gas in the middle part of the expansion gas sleeve 324 is squeezed toward the periphery of the expansion gas sleeve 324, increasing the contact force with the inner wall of the conical groove 103 and improving the sealing effect.

[0078] At the same time, the expanded inflation air sleeve 324 will push the push plate 9 to slide along the third slide rod 7, moving the filter 109 to the outside of the box body 101. At this time, the filter 109 is located below the drainage hole of the water pipe 4, and the water discharged through the water pipe 4 can flush the filter 109 and the fan blades 5.

[0079] The fan blades 5 drive the filter 109 to rotate, thereby further increasing the contact area between the filter 109 and rainwater and improving the cleaning effect.

[0080] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A metering box with a locking and sealing device, characterized in that: include: A metering box assembly (1) and a locking and sealing device (3) installed inside the metering box assembly (1); The metering box assembly (1) comprises a box body (101), both sides of the box body (101) are provided with heat dissipation holes (102), and the inner ends of the heat dissipation holes (102) are provided with conical grooves (103); The locking and sealing device (3) comprises a fixed rod (309) adapted to be moved up and down by an action, a top cover (310) being fixedly connected to an outer wall of the fixed rod (309), a corrugated telescopic sleeve (311) being fixedly connected to a bottom of the top cover (310), a connecting tube (312) being fixedly connected to a bottom of the corrugated telescopic sleeve (311), and the top cover (310), the corrugated telescopic sleeve (311) and the connecting tube (312) being connected to form a compression chamber; The bottom of the connecting tube (312) is fixedly connected to an exhaust pipe (322) communicating with the compression chamber. The bottom of the connecting tube (312) is fixedly connected to a mounting plate (323). The bottom of the exhaust pipe (322) is fixedly connected to the inner wall of the mounting plate (323). The inner wall of the mounting plate (323) is fixedly connected to an expansion gas sleeve (324). The expansion chamber of the expansion gas sleeve (324) is communicated with the exhaust pipe (322). The bottom of the mounting plate (323) is provided with a positioning groove (325). The inner wall of the box (101) is fixedly connected to a limiting arc plate (326). The positioning groove (325) is adapted to be engaged with the limiting arc plate (326) to limit the movement of the mounting plate (323). The expansion gas sleeve (324) is adapted to be expanded when the positioning groove (325) and the limiting arc plate (326) are engaged to seal the conical groove (103), thereby sealing the corresponding heat dissipation hole (102). Two sliding grooves (107) are provided on both sides of the inner wall of the box body (101), and the inner walls of the sliding grooves (107) are fixedly connected to the first sliding rod (108). Limiting grooves (106) are provided on both sides of the inner wall of the box body (101), and the connecting tube (312) is slidably connected to the inner wall of the corresponding limiting groove (106). The outer wall of the connecting tube (312) is fixedly connected to a slider (313) corresponding to the first sliding rod (108), and the slider (313) is slidably connected to the corresponding first sliding rod (108). The top of the slider (313) is fixedly connected to the second telescopic sleeve (314), and the outer wall of the second telescopic sleeve (314) is provided with a sliding hole (315). The inner wall of the sliding hole (315) is slidably connected to the limiting block (316), and the inner wall of the second telescopic sleeve (314) is slidably connected to the second telescopic rod (317). The end of the second telescopic rod (317) is fixedly connected to the limit block (316); the outer wall of the top cover (310) is fixedly connected to a connecting plate (318) corresponding to the second telescopic rod (317); the connecting plate (318) is fixedly connected to the corresponding second telescopic rod (317); the outer wall of the corrugated telescopic sleeve (311) is fixedly connected to a slide plate (319); the slide plate (319) is slidably connected to the corresponding second telescopic rod (317); a piston (320) is slidably connected in a chamber forming a compression chamber in the corrugated telescopic sleeve (311); the top of the piston (320) is fixedly connected to the fixed rod (309); a second spring (321) is provided in the connecting tube (312); the top of the second spring (321) abuts against the piston (320); and the bottom of the second spring (321) abuts against the bottom of the inner wall of the connecting tube (312).

2. The metering box with a locking and sealing device according to claim 1, characterized in that: The locking and sealing device (3) further comprises an electric push rod (301), wherein the electric push rod (301) is fixedly connected to the inner wall of the box body (101), an output end of the electric push rod (301) is fixedly connected to a support rod (302), both ends of the support rod (302) are fixedly connected to an extension shaft (303), an outer wall of the extension shaft (303) is rotatably connected to a first telescopic rod (305), an outer wall of the first telescopic rod (305) is slidably connected to a first telescopic sleeve (306), an outer wall of the first telescopic sleeve (306) is fixedly connected to a connecting shaft (307), an end of the connecting shaft (307) passes through the box body (101) and is rotatably connected thereto, an outer wall of the first telescopic rod (305) is slidably connected to a sliding ring (308), and an outer wall of the sliding ring (308) is fixedly connected to a corresponding fixed rod (309); The ends of the extension shafts (303) are embedded with rotatable balls (304), and rolling grooves (104) are provided on both sides of the inner wall of the box body (101), and the balls (304) are rollingly connected to the corresponding rolling grooves (104).

3. The metering box with a locking and sealing device according to claim 2, characterized in that: The heat dissipation hole (102) is a tapered hole that gradually contracts from the inside to the outside. The diameter of the heat dissipation hole (102) decreases from the inside to the outside. A filter screen (109) is installed on the inner wall of the heat dissipation hole (102). A plurality of grooves (110) are provided on the circumferential outer wall of the filter screen (109).

4. The metering box with a locking and sealing device according to claim 3, characterized in that: Both sides of the box body (101) are provided with mounting grooves (105), the inner walls of the mounting grooves (105) are fixedly connected to second sealing strips (118), and the outer wall of the box body (101) is rotatably connected to two rotating shafts (111).

5. The metering box with a locking and sealing device according to claim 4, characterized in that: The metering box assembly (1) further comprises two box doors (112), the box doors (112) being connected to the box body (101) via corresponding rotating shafts (111), the outer sides of the box doors (112) being convexly formed with convex portions, the convex portions being in press contact with corresponding second sealing strips (118), the inner sides of the two box doors (112) being fixedly connected with first sealing strips (113), an anti-theft lock (114) being installed between the inner sides of the two box doors (112), and the outer tops and bottoms of the box doors (112) being provided with There is a movable hole (115), the inner wall of the movable hole (115) is fixedly connected to a second slide rod (116), the outer wall of the second slide rod (116) is sleeved with a first spring (117), the end of the rotating shaft (111) passes through the movable hole (115) and extends to the outside thereof, the second slide rod (116) passes through the rotating shaft (111) and is slidably connected thereto, one end of the first spring (117) abuts against the rotating shaft (111), and the other end of the first spring (117) abuts against the inner wall of the box door (112).

6. The metering box with a locking and sealing device according to claim 5, characterized in that: The invention also includes a drainage assembly (2) installed on the top of the metering box assembly (1), wherein the drainage assembly (2) includes a box top (201), a first arc groove (205) and a second arc groove (206) are provided at the bottom of the box top (201), a drainage edge (207) is formed at the connection between the first arc groove (205) and the second arc groove (206), an edge of the second arc groove (206) away from the drainage edge (207) is a first oblique edge (2061), an edge on the side wall of the box top (201) intersecting with the bottom end of the first oblique edge (2061) is a second oblique edge (213), the first oblique edge (2061) and the second oblique edge (213) are both inclined, the lower ends of the first oblique edge (2061) and the second oblique edge (213) are the intersecting ends, the drainage edge (207) is inclined, and the drainage edge (207) is located between the first arc groove (205) and the second arc groove (206).

7. The metering box with a locking and sealing device according to claim 6, characterized in that: The box top (201) is fixedly mounted on the top of the box body (101), a water collecting trough (202) is provided on the top of the box top (201), a drainage hole (204) connected to the water collecting trough (202) is provided on the box top (201), and the drainage hole (204) passes through the second arc groove (206) and is connected thereto.

8. The metering box with a locking and sealing device according to claim 7, characterized in that: A mounting hole (203) is provided on the top of the box top (201), the mounting hole (203) is communicated with the drainage hole (204), a water flow sensor (208) is provided in the mounting hole (203), a blocking rod (209) is slidably connected to the inner wall of the drainage hole (204), a linkage mechanism is provided between the connecting shaft (307) and the blocking rod (209), and the connecting shaft (307) is suitable for driving the blocking rod (209) to slide in the drainage hole (204) through the linkage mechanism to open or close the communication channel between the drainage hole (204) and the second arc groove (206); The metering box further comprises a controller connected to the water flow sensor (208) and the electric push rod (301), the controller being adapted to control the movement of the electric push rod (301) according to a signal fed back by the water flow sensor (208), the linkage mechanism comprising a fixed block (210), the fixed block (210) being fixedly connected to the blocking rod (209), the outer wall of the fixed block (210) being rotatably connected to a first arm (211), the end of the first arm (211) being rotatably connected to a second arm (212), and the second arm (212) being fixedly connected to the connecting shaft (307).

9. The metering box with a locking and sealing device according to claim 8, characterized in that: The side wall of the box body (101) is fixedly connected to a water pipe (4) corresponding to the second arc groove (206), the filter screen (109) is slidably connected to the heat dissipation hole (102), the outer wall of the filter screen (109) can be fixedly connected to a plurality of fan blades (5) in a ring array structure, the inner wall of the filter screen (109) is rotatably connected to a support shaft (6), the end of the support shaft (6) is fixedly connected to a push plate (9), and both ends of the push plate (9) extend to the heat dissipation hole (102) respectively. A third slide bar (7) is fixedly connected to the groove of the inner wall, and a third spring (8) is sleeved on the outer wall of the third slide bar (7). The end of the third slide bar (7) passes through the push plate (9) and is slidably connected thereto. One end of the third spring (8) abuts against the box body (101), and the other end of the third spring (8) abuts against the push plate (9). The drainage hole (204) passes through the second arc groove (206) to form an outlet, and the outlet is connected to the inlet of the corresponding water pipe (4).

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