Distribution box for road electromechanical engineering

Abstract

The invention discloses a distribution box for road electromechanical engineering, and belongs to the technical field of distribution boxes, the distribution box comprises a distribution box body and two groups of plugging mechanisms, the two sides of the distribution box body are provided with ventilation holes, and the two groups of plugging mechanisms are respectively located at the two sides of the distribution box body. The plugging mechanism comprises a plurality of plugging blocks, a first connecting rod, a floating platform, a second connecting rod and a guide assembly, the number of the plugging blocks is equal to that of the ventilation holes, the plugging blocks are fixedly connected through the first connecting rod, the floating platform is fixed to the plugging blocks through the second connecting rod, and the guide assembly is used for guiding the floating platform. When the rainwater level on the outer side of the distribution box body is too high, the floating platform on the outer side of the distribution box body ascends due to the too high water level, the floating platform ascends to drive the blocking block to ascend, the ventilation holes are blocked by the blocking block, rainwater entering the distribution box body is reduced, and damage of the rainwater to electric appliances is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of distribution boxes, and in particular discloses a distribution box for highway electromechanical engineering. Background Art

[0002] The electromechanical system of a highway is divided into six major systems: monitoring, communications, toll collection, low-voltage power supply and distribution, lighting, and tunnel electromechanical engineering. During the construction and development of highways, these three systems—monitoring, toll collection, and communications—are developed simultaneously and in a coordinated manner.

[0003] In the related art, a distribution box for highway electromechanical engineering includes a box body and electrical appliances installed in the box body. Ventilation holes are provided on the side of the box body, and heat dissipation of the electrical appliances in the box body is achieved through the ventilation holes on the box body.

[0004] Regarding the aforementioned related technologies, the inventors discovered that existing ventilation holes are often located in the upper portion of the box to reduce the ingress of rainwater. However, during periods of heavy rain or sewer blockage, the water level on the road can rise rapidly, allowing rainwater to easily enter the distribution box through the ventilation holes, causing short circuits and damage to the electrical appliances inside. Summary of the Invention

[0005] In order to reduce the damage of rainwater to electrical appliances, the present application provides a distribution box for highway electromechanical engineering.

[0006] This application provides a distribution box for highway electromechanical engineering, which adopts the following technical solution: A distribution box for highway electromechanical engineering comprises a distribution box body and a blocking mechanism, ventilation holes are provided on both sides of the distribution box body, two groups of blocking mechanisms are provided, and the two groups of blocking mechanisms are respectively located on both sides of the distribution box body, the blocking mechanism comprises a blocking block, a first connecting rod, a floating platform, a second connecting rod and a guide assembly, the blocking blocks are provided in plurality, and the number of blocking blocks is equal to the number of ventilation holes, the plurality of blocking blocks are fixedly connected by the first connecting rod, the floating platform is fixed to the blocking block by the second connecting rod, and the guide assembly is used to guide the floating platform.

[0007] By adopting the above technical solution, when the rainwater level outside the distribution box body is too high, the excessively high water level causes the floating platform outside the distribution box body to rise. The rise of the floating platform drives the blocking block to rise, so that the blocking block is blocked at the ventilation hole, reducing the entry of rainwater into the interior of the distribution box body, thereby reducing the damage of rainwater to electrical appliances.

[0008] Optionally, the guide assembly includes a first fixed plate, a guide rod, a guide sleeve and a third connecting rod, the first fixed plate is fixed to the bottom of the outer side of the distribution box body, the guide rod is fixed to the first fixed plate, the guide sleeve is slidably connected to the guide rod, and the guide sleeve is fixed to the floating platform through the third connecting rod.

[0009] By adopting the above technical solution, the guide sleeve is slidably connected to the guide rod, so that the floating platform and the blocking block will not move horizontally, so that the blocking block can accurately block the ventilation hole of the distribution box body, which can reduce rainwater from entering the interior of the distribution box body, thereby reducing the damage of rainwater to electrical appliances.

[0010] Optionally, it also includes a first limit assembly, which includes a limit shaft, a first cylinder, a first limit rod and a first humidity sensor switch. The limit shaft is fixed on the third connecting rod, and a limit slot is provided on the limit shaft near one end of the distribution box body. A second fixing plate is fixed on the inner bottom wall of the distribution box body, the first cylinder is fixed on the second fixing plate, the first limit rod is fixed on the telescopic end of the first cylinder, and a first through hole is provided on the side wall of the distribution box body. The first limit rod can pass through the first through hole and be inserted into the limit slot. The first humidity sensor switch is fixed on the bottom of the outer side wall of the distribution box body, and the first humidity sensor switch is connected to the first cylinder.

[0011] By adopting the above technical solution, when it rains, the first humidity sensor switch can cause the telescopic end of the first cylinder to retract, and the first cylinder can drive the first limit rod to disengage from the limit groove, so that the floating platform can be raised and lowered, making it easier for the blocking block to block the ventilation hole when there is too much rain; after the rain stops, the first humidity sensor switch can cause the telescopic end of the first cylinder to extend, so that the first limit rod is inserted into the limit groove, which can prevent the floating platform and the blocking block from moving, thereby ensuring the ventilation effect of the distribution box as much as possible.

[0012] Optionally, a first flaring groove is formed on the outer side of the distribution box body at the first through hole, and a first sealing ring that matches the first flaring groove is fixed on the first limiting rod.

[0013] By adopting the above technical solution, after the first cylinder drives the first limiting rod to shrink, the first sealing ring on the first limiting rod can abut against the first flaring groove, thereby improving the sealing effect at the first through hole.

[0014] Optionally, it also includes a second limit assembly, which includes a second cylinder, a second limit rod, a proximity sensor switch, an induction plate and a second humidity sensor switch. A third fixing plate is fixed to the bottom of the inner wall of the distribution box body, the second cylinder is fixed on the third fixing plate, the second limit rod is fixed to the telescopic end of the second cylinder, and a second through hole is opened on the side wall of the distribution box body. The second limit rod can pass through the second through hole and be inserted into the limit groove. The proximity sensor switch is fixed at the end of the second limit rod away from the second cylinder, the induction plate is fixed in the limit groove, the second humidity sensor switch is fixed on the outer side of the distribution box body, and the second humidity sensor switch, the proximity sensor switch and the second cylinder are connected in series.

[0015] By adopting the above technical solution, when it rains, the second humidity sensor switch is closed, and after the blocking block blocks the ventilation hole, the proximity sensor switch is opposite to the sensing plate, so that the proximity sensor switch is closed, thereby starting the second cylinder, and the second cylinder drives the second limit rod to move, so that the second limit rod is inserted into the limit groove, so that the blocking block can be firmly inserted into the ventilation hole; after the rain stops, the second humidity sensor switch is opened, so that the floating platform and the blocking block can fall, which is convenient for ventilation inside the distribution box.

[0016] Optionally, a second flaring groove is formed on the outer side of the distribution box body at the second through hole, and a second sealing ring that matches the second flaring groove is fixed on the second limiting rod.

[0017] By adopting the above technical solution, after the second cylinder drives the second limiting rod to extend, the second sealing ring on the second limiting rod can abut against the second flaring groove, thereby improving the sealing effect at the second through hole.

[0018] Optionally, the humidity value of the second humidity sensor switch is higher than the humidity value of the first humidity sensor switch.

[0019] By adopting the above technical solution, the floating platform falls before the first limiting rod extends, which makes it easier for the first limiting rod to fix the position of the floating platform.

[0020] Optionally, a ventilation shell cooperating with a blocking block is fixed at the ventilation hole on the outer side wall of the distribution box body, and the ventilation shell and the ventilation hole on the distribution box body form a ventilation channel opening downward.

[0021] By adopting the above technical solution, on the one hand, it can reduce the falling rainwater entering the distribution box body, and on the other hand, it increases the sealing area of the blocking block, improves the sealing effect of the blocking block, and can reduce the rainwater on the road from entering the interior of the distribution box body.

[0022] Optionally, the distribution box body includes a box body, an electrical appliance, a switch door, a door lock, a locking piece, an annular plate and a sealing ring. The electrical appliance is fixed to the top of the inner wall of the box body, one side of the switch door is rotatably connected to the box body, and the other side of the switch door is fixed by a locking piece. The annular plate is fixed inside the box body, and the sealing ring is fixed to the outer side of the annular plate. After the switch door is closed, the inner side of the switch door abuts against the outer side of the sealing ring.

[0023] By adopting the above technical solution, the sealing ring improves the sealing effect between the switch door and the box body, reduces the entry of rainwater into the box body, and the electrical appliances are located at the top of the box body, reducing the damage caused by rainwater entering the box body to the electrical appliances inside the box body.

[0024] Optionally, the floating platform is configured as a hollow platform.

[0025] By adopting the above technical solution, the weight of the floating platform is reduced, making it easier for the floating platform to drive the blocking blocks to move upward.

[0026] In summary, this application includes at least one of the following beneficial technical effects: When the rainwater level outside the distribution box body is too high, the high water level causes the floating platform outside the distribution box body to rise. The rise of the floating platform drives the blocking block to rise, so that the blocking block blocks the ventilation hole, reducing the entry of rainwater into the distribution box body, thereby reducing the damage of rainwater to electrical appliances; When it rains, the first humidity sensor switch can cause the telescopic end of the first cylinder to retract, and the first cylinder can drive the first limiting rod to disengage from the limiting groove, so that the floating platform can be raised and lowered, so that the blocking block can block the ventilation hole when there is too much rain. After the rain stops, the first humidity sensor switch can cause the telescopic end of the first cylinder to extend, so that the first limiting rod can be inserted into the limiting groove, which can prevent the floating platform and the blocking block from moving, thereby ensuring the ventilation effect of the distribution box as much as possible. When it rains, the second humidity sensor switch is closed. After the blocking block blocks the ventilation hole, the proximity sensor switch is opposite to the sensing sheet, causing the proximity sensor switch to be closed, thereby starting the second cylinder. The second cylinder drives the second limit rod to move, so that the second limit rod is inserted into the limit groove, so that the blocking block can be firmly inserted into the ventilation hole; after the rain stops, the second humidity sensor switch is opened, allowing the floating platform and the blocking block to fall, thereby facilitating ventilation inside the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of this application.

[0028] Figure 2 This is a schematic diagram of the structure in which the opening and closing doors are hidden in this application.

[0029] Figure 3 This application Figure 2 Enlarged view of point A in the middle.

[0030] Figure 4 It is a schematic diagram of the internal structure of the box of the present application at the first limit component and the second limit component.

[0031] Explanation of the accompanying symbols: 1. Distribution box body; 11. Box body; 111. Ventilation hole; 112. First through hole; 113. First flared groove; 114. Second through hole; 115. Second flared groove; 12. Electrical appliance; 13. Switch door; 14. Locking member; 15. Annular plate; 16. Sealing ring; 2. Blocking mechanism; 21. Blocking block; 22. First connecting rod; 23. Floating platform; 24. Second connecting rod; 25. Guide assembly; 251. First fixing plate; 252. Guide rod; 253. Guide sleeve ;254, third connecting rod;26, fourth connecting rod;3, first limiting assembly;31, limiting shaft;311, limiting groove;32, first cylinder;33, first limiting rod;331, first sealing ring;34, first humidity sensor switch;4, second fixed plate;5, second limiting assembly;51, second cylinder;52, second limiting rod;521, second sealing ring;53, proximity sensor switch;54, induction sheet;55, second humidity sensor switch;6, third fixed plate;7, ventilation shell. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a distribution box for highway electromechanical engineering. Figure 1 A distribution box for highway electromechanical engineering includes a distribution box body 1, a blocking mechanism 2, a first limiting component 3 and a second limiting component 5.

[0034] Reference Figure 1 and Figure 2The distribution box body 1 includes a box body 11, an electrical appliance 12, a switch door 13, a locking member 14, an annular plate 15, and a sealing ring 16. A plurality of ventilation holes 111 are arranged in an array on opposite sides of the box body 11. A ventilation shell 7 is fixed to the outer wall of the box body 11 at each ventilation hole 111. The ventilation shell 7 and the ventilation holes 111 on the distribution box body 1 form an L-shaped ventilation channel with an opening downward. The ventilation channel can reduce the amount of falling rainwater entering the box body 11. The electrical appliance 12 is fixed to the top of the inner wall of the box body 11. One side of the switch door 13 is rotatably connected to the box body 11, and the other side of the switch door 13 is fixed by the locking member 14. The locking member 14 includes a first mounting plate, a second mounting plate, and a bolt. The first mounting plate is fixed to the outer side of the box body 11. The second mounting plate is fixed to the outer side of the switch door 13. The first mounting plate and the second mounting plate are fixed by bolts. The annular plate 15 is fixed inside the box body 11. The sealing ring 16 is fixed to the outer side of the annular plate 15. After the switch door 13 is closed, the inner side surface of the switch door 13 abuts against the outer side surface of the sealing ring 16 , thereby improving the sealing performance of the connection between the switch door 13 and the box body 11 .

[0035] Reference Figure 1 and Figure 2 , two groups of blocking mechanisms 2 are provided. The two groups of blocking mechanisms 2 are symmetrically arranged on both sides of the box body 11. The blocking mechanism 2 includes a blocking block 21, a first connecting rod 22, a floating platform 23, a second connecting rod 24 and a guide assembly 25. The shape of the blocking block 21 matches the internal structure of the ventilation shell 7. There are multiple blocking blocks 21, and each blocking block 21 is correspondingly arranged at each ventilation hole 111. The multiple blocking blocks 21 are fixedly connected by the first connecting rod 22. The floating platform 23 is fixed to the blocking block 21 by the second connecting rod 24. The floating platform 23 is a hollow platform, which reduces the weight of the floating platform 23 and facilitates the floating platform 23 to drive the blocking block 21 to move upward. A fourth connecting rod 26 is fixed between the floating platform 23 and the first connecting rod 22, which improves the connection strength between the blocking block 21 and the floating platform 23. When the rainwater level outside the box body 11 is too high, the rainwater on the road causes the floating platform 23 to rise, driving the blocking block 21 to rise, so that the blocking block 21 blocks the ventilation hole 111, reducing the rainwater from entering the distribution box body 1, thereby reducing the damage of the rainwater to the electrical appliance 12.

[0036] Reference Figure 1-3, there are two groups of guide assemblies 25, and the two groups of guide assemblies 25 are symmetrically arranged on both sides of the floating platform 23. The guide assembly 25 includes a first fixed plate 251, a guide rod 252, a guide sleeve 253 and a third connecting rod 254. Two first fixed plates 251 are provided, and the two first fixed plates 251 are fixed at an upper and lower interval at the bottom of the outer side of the box body 11. A threaded portion is provided on the side of one end of the guide rod 252, and the guide rod 252 is inserted between the two first fixed plates 251. The guide rod 252 and the first fixed plate 251 are fixed by a nut threadedly connected to the threaded portion of the guide rod 252. The guide sleeve 253 is slidably connected to the guide rod 252. The guide sleeve 253 is fixed to the top of the side of the floating platform 23 through the third connecting rod 254. The setting of the guide rod 252 and the guide sleeve 253 prevents the floating platform 23 and the blocking block 21 from moving horizontally, so that the blocking block 21 can accurately block the ventilation hole 111 of the distribution box body 1, thereby improving the blocking effect of the blocking block 21.

[0037] Reference Figure 1 、 Figure 2 as well as Figure 4 , two first through holes 112 are provided at intervals on the bottom of the two opposite sides of the box body 11. A truncated cone-shaped first flared groove 113 is provided on the outer side of the box body 11 at the first through hole 112. Four groups of first limit assemblies 3 are provided, and the four groups of first limit assemblies 3 are respectively located at the four first through holes 112. The first limit assembly 3 includes a limit shaft 31, a first cylinder 32, a first limit rod 33 and a first humidity sensor switch 34. The limit shaft 31 is fixed on the third connecting rod 254. A limit groove 311 is provided at one end of the limit shaft 31 close to the distribution box body 1. A vertically arranged second fixed plate 4 is fixed to the inner bottom wall of the distribution box body 1. The first cylinder 32 is fixed on the side of the second fixed plate 4. The first limit rod 33 is fixed to the telescopic end of the first cylinder 32. And the first limit rod 33 can pass through the first through hole 112 and be inserted into the limit groove 311. A first sealing ring 331 is fixed to the outer portion of the first limiting rod 33, which is adapted to the first flared groove 113. When the first cylinder 32 drives the first limiting rod 33 to retract, the first sealing ring 331 on the first limiting rod 33 can abut against the first flared groove 113, thereby improving the sealing effect at the first through hole 112.

[0038] Reference Figure 1 、 Figure 2 as well as Figure 4When it rains, the first humidity sensor switch 34 can cause the telescopic end of the first cylinder 32 to retract, and the first cylinder 32 can drive the first limiting rod 33 to disengage from the limiting groove 311, so that the floating platform 23 can be raised and lowered, which is convenient for the blocking block 21 to block the ventilation hole 111 when there is too much rain; after the rain stops, the first humidity sensor switch 34 can cause the telescopic end of the first cylinder 32 to extend, so that the first limiting rod 33 is inserted into the limiting groove 311, which can prevent the floating platform 23 and the blocking block 21 from moving, thereby ensuring the ventilation effect of the distribution box as much as possible.

[0039] Reference Figure 1 、 Figure 2 as well as Figure 4 Two second through holes 114 are provided at intervals above the first through hole 112 on the bottom of the two opposite sides of the box body 11. A truncated cone-shaped second flared groove 115 is provided on the inner side of the box body 11 at the second through holes 114. Four groups of second limit assemblies 5 are provided, and the four groups of second limit assemblies 5 are respectively located at the four second through holes 114. The second limit assembly 5 includes a second cylinder 51, a second limit rod 52, a proximity sensor switch 53, an induction plate 54 and a second humidity sensor switch 55. An L-shaped third fixing plate 6 is fixed to the bottom of the inner wall of the box body 11. The second cylinder 51 is fixed to the side of the third fixing plate 6. The second limit rod 52 is fixed to the telescopic end of the second cylinder 51. The second limit rod 52 can pass through the second through hole 114 and be inserted into the limit groove 311. The second limit rod 52 is fixed on the inner side of the box body 11 with a second sealing ring 521 that cooperates with the second flared groove 115. After the second cylinder 51 extends the second limiting rod 52, the second sealing ring 521 on the second limiting rod 52 can abut against the second flared groove 115, improving the sealing effect at the second through hole 114. The proximity sensor switch 53 is fixed to the end of the second limiting rod 52 facing away from the second cylinder 51. The sensor plate 54 is fixed in the limiting groove 311. The second humidity sensor switch 55 is fixed to the outer side of the distribution box body 1. The humidity value of the second humidity sensor switch 55 is higher than the humidity value of the first humidity sensor switch 34. The second humidity sensor switch 55, the proximity sensor switch 53, and the second cylinder 51 are connected in series.

[0040] Reference Figure 1 、 Figure 2 as well as Figure 4 During rain, the second humidity sensor switch 55 closes. When the road is blocked by excessive rainwater and rises into the ventilation housing 7, the proximity sensor switch 53 faces the induction plate 54, closing the proximity sensor switch 53. This activates the second cylinder 51, which in turn moves the second limiting rod 52, inserting it into the limiting groove 311 and securing the blocking block 21 in the vent 111. After the rain stops, the second humidity sensor switch 55 opens, allowing the floating platform 23 and the blocking block 21 to descend, facilitating ventilation within the distribution box.

[0041] The implementation principle of a distribution box for highway electromechanical engineering in an embodiment of the present application is as follows: when it rains, the second humidity sensor switch 55 is closed. At the same time, the first humidity sensor switch 34 can shrink the telescopic end of the first cylinder 32, and the first cylinder 32 can drive the first limiting rod 33 to disengage from the limiting groove 311, so that the floating platform 23 and the blocking block 21 can rise and fall freely. When the rain on the road continues to increase, the floating platform 23 and the blocking block 21 continue to rise under the action of the buoyancy of the floating platform 23. When it rises into the ventilation shell 7 after blocking, the proximity sensor switch 53 is opposite to the induction plate 54, so that the proximity sensor switch 53 is closed, thereby starting the second cylinder 51, and the second cylinder 51 drives the second limiting rod 52 to move, so that the second limiting rod 52 is inserted into the limiting groove 311, so that the blocking block 21 can be firmly inserted into the ventilation hole 111.

[0042] After the rain stops, the humidity continues to decrease, causing the second humidity sensor switch 55 to open, allowing the floating platform 23 and blocking block 21 to descend, facilitating ventilation within the distribution box. When the humidity drops again, the first humidity sensor switch 34 causes the telescopic end of the first cylinder 32 to extend, allowing the first limiting rod 33 to insert into the limiting slot 311, preventing the floating platform 23 and blocking block 21 from moving and ensuring optimal ventilation within the distribution box.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A distribution box for highway electromechanical engineering, characterized by: The invention comprises a distribution box body (1) and a blocking mechanism (2), wherein ventilation holes (111) are provided on both sides of the distribution box body (1), and the blocking mechanism (2) is provided in two groups, and the two groups of blocking mechanisms (2) are respectively located on both sides of the distribution box body (1), and the blocking mechanism (2) comprises a blocking block (21), a first connecting rod (22), a floating platform (23), a second connecting rod (24) and a guide assembly (25), wherein the blocking block (21) is provided in plurality, and the number of the blocking blocks (21) is equal to the number of the ventilation holes (111), the plurality of blocking blocks (21) are fixedly connected by the first connecting rod (22), the floating platform (23) is fixed to the blocking block (21) by the second connecting rod (24), and the guide assembly (25) is used for guiding the floating platform (23).

2. A distribution box for highway electromechanical engineering according to claim 1, characterized in that: The guide assembly (25) comprises a first fixing plate (251), a guide rod (252), a guide sleeve (253) and a third connecting rod (254); the first fixing plate (251) is fixed to the bottom of the outer side of the distribution box body (1); the guide rod (252) is fixed to the first fixing plate (251); the guide sleeve (253) is slidably connected to the guide rod (252); and the guide sleeve (253) is fixed to the floating platform (23) via the third connecting rod (254).

3. A distribution box for highway electromechanical engineering according to claim 2, characterized in that: The invention also includes a first limiting assembly (3), the first limiting assembly (3) including a limiting shaft (31), a first cylinder (32), a first limiting rod (33) and a first humidity sensor switch (34), the limiting shaft (31) being fixed on the third connecting rod (254), and a limiting groove (311) being provided at one end of the limiting shaft (31) close to the distribution box body (1), a second fixing plate (4) being fixed on the inner bottom wall of the distribution box body (1), the first cylinder (32) being fixed on the second fixing plate (4), the first limiting rod (33) being fixed on the telescopic end of the first cylinder (32), a first through hole (112) being provided on the side wall of the distribution box body (1), the first limiting rod (33) being able to pass through the first through hole (112) and be inserted into the limiting groove (311), the first humidity sensor switch (34) being fixed on the outer side wall of the distribution box body (1), and the first humidity sensor switch (34) being connected to the first cylinder (32).

4. A distribution box for highway electromechanical engineering according to claim 3, characterized in that: A first flared groove (113) is provided on the outer side surface of the distribution box body (1) at the first through hole (112), and a first sealing ring (331) that cooperates with the first flared groove (113) is fixed on the first limiting rod (33).

5. A distribution box for highway electromechanical engineering according to claim 3, characterized in that: The second limiting assembly (5) further comprises a second cylinder (51), a second limiting rod (52), a proximity sensor switch (53), a sensing plate (54) and a second humidity sensor switch (55); a third fixing plate (6) is fixed to the bottom of the inner side wall of the distribution box body (1); the second cylinder (51) is fixed on the third fixing plate (6); the second limiting rod (52) is fixed to the telescopic end of the second cylinder (51); and a second passage is provided on the side wall of the distribution box body (1). The second limiting rod (52) is capable of passing through the second through hole (114) and being inserted into the limiting groove (311). The proximity sensor switch (53) is fixed to the end of the second limiting rod (52) facing away from the second cylinder (51). The sensing piece (54) is fixed in the limiting groove (311). The second humidity sensor switch (55) is fixed to the outer side of the distribution box body (1). The second humidity sensor switch (55), the proximity sensor switch (53) and the second cylinder (51) are connected in series.

6. A distribution box for highway electromechanical engineering according to claim 5, characterized in that: A second flared groove (115) is provided on the inner side of the distribution box body (1) at the second through hole (114), and a second sealing ring (531) that matches the second flared groove (115) is fixed on the second limiting rod (52).

7. A distribution box for highway electromechanical engineering according to claim 5, characterized in that: The humidity value of the second humidity sensor switch (55) is higher than the humidity value of the first humidity sensor switch (34).

8. A distribution box for highway electromechanical engineering according to claim 1, characterized in that: A ventilation shell (7) cooperating with the blocking block (21) is fixed to the ventilation hole (111) on the outer side wall of the distribution box body (1), and the ventilation shell (7) and the ventilation hole (111) on the distribution box body (1) form a ventilation channel opening downward.

9. A distribution box for highway electromechanical engineering according to claim 1, characterized in that: The distribution box body (1) comprises a box body (11), an electrical appliance (12), a switch door (13), a locking member (14), an annular plate (15) and a sealing ring (16), wherein the electrical appliance (12) is fixed to the top of the inner wall of the box body (11), one side of the switch door (13) is rotatably connected to the box body (11), and the other side of the switch door (13) is fixed by the locking member (14), the annular plate (15) is fixed inside the box body (11), and the sealing ring (16) is fixed to the outer side of the annular plate (15), and when the switch door (13) is closed, the inner side of the switch door (13) abuts against the outer side of the sealing ring (16).

10. A distribution box for highway electromechanical engineering according to claim 1, characterized in that: The floating platform (21) is configured as a hollow platform.

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