A rainproof cable distribution box

Abstract

The present invention discloses a rain-proof cable distribution box, which relates to the technical field of electrical configuration. It includes an outer box shell, an internal installation platform, a hole-blocking component, and a monitoring component. On rainy days, the lifting mechanism is used to drive the internal installation platform to rise, thereby triggering the hole-blocking component to block the heat dissipation holes in the heat dissipation area, preventing rainwater from entering the box due to the open heat dissipation holes. When it is not raining, the lifting mechanism drives the internal installation platform to lower and reset, and the hole-blocking component opens all the heat dissipation holes in the heat dissipation area, and the heat dissipation holes resume their heat dissipation function. The present invention adopts the method of driving the internal installation platform to rise and fall by the lifting mechanism, and combines with the ingenious structural arrangement of the hole-blocking component to realize the switching between the heat dissipation mode and the closed mode of the outer box shell. On the basis of ensuring the heat dissipation performance of the box body, the rain-proof performance of the cable distribution box is improved, and the probability of failures or accidents of the cable distribution box on rainy days is effectively reduced, solving the problem that the existing cable distribution boxes cannot have both heat dissipation performance and rain-proof performance.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical configurations, and particularly to a rainproof cable distribution box. Background Art

[0002] A cable distribution box is a box used for tapping and transferring cables and is used as a cable branch. Currently, cable distribution boxes are usually placed outdoors and are inevitably exposed to wind, rain, and sunlight. Especially on rainy days, once rainwater enters the box, it will damage the electrical accessories inside the box, and even cause electric leakage accidents, posing potential safety hazards. Therefore, it is particularly important to improve the rainproof performance of cable distribution boxes.

[0003] However, existing cable distribution boxes often need to set heat dissipation holes on the side walls of the box body to dissipate heat from the inside of the box body. The existence of heat dissipation holes increases the design difficulty of the cable distribution box with rainproof performance, and existing cable distribution boxes often cannot have both heat dissipation performance and rainproof performance. Therefore, it is necessary to propose an outdoor cable distribution box with a rainproof function. Summary of the Invention

[0004] The purpose of the present invention is to provide a rainproof cable distribution box, which can improve the rainproof performance of the cable distribution box on the basis of ensuring the heat dissipation performance of the box body, so as to solve the problem that existing cable distribution boxes cannot have both heat dissipation performance and rainproof performance.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The present invention provides a rainproof cable distribution box, including:

[0007] An outer box shell, legs are arranged at the bottom of the outer box shell, a door frame is provided on the front side of the outer box shell, a box door is configured at the door frame, a heat dissipation area is arranged on the side wall of the outer box shell, and a plurality of heat dissipation holes are arranged in the heat dissipation area in an up-and-down arrangement;

[0008] An internal installation platform, which is movably arranged in the outer box shell and is used for installing electrical accessories; the bottom of the internal installation platform is connected to the outer box shell through a lifting mechanism, and the lifting mechanism is used to raise the internal installation platform relative to the outer box shell when it rains;

[0009] Hole-blocking component, the hole-blocking component includes bumps, slide rails, a hole-blocking plate bracket and a hole-blocking plate. The hole-blocking plate bracket is vertically arranged between the built-in installation table and the heat dissipation area of the outer box shell. A plurality of the hole-blocking plates are arranged on one side of the hole-blocking plate bracket facing the heat dissipation area, and the hole-blocking plates are arranged in one-to-one correspondence with the heat dissipation holes in the heat dissipation area; the slide rail is horizontally arranged above the heat dissipation area, and one end of the slide rail is connected to the inner wall of the outer box shell. The top of the hole-blocking plate bracket is slidably connected to the bottom of the slide rail, and a return spring is connected between the hole-blocking plate bracket and the heat dissipation area. The bump is arranged at a position near the bottom of the side wall of the built-in installation table, and the side of the bump away from the built-in installation table protrudes outward gradually from top to bottom. The bump is used to squeeze the hole-blocking plate bracket towards the heat dissipation area during the rising process of the built-in installation table, so that the corresponding heat dissipation holes are completely blocked by the hole-blocking plates; the return spring is used to push the hole-blocking plate bracket away from the heat dissipation area after the built-in installation table descends, so that the corresponding heat dissipation holes are completely opened by the hole-blocking plates;

[0010] Monitoring component, the monitoring component includes a control module, a humidity sensor and a temperature sensor. The humidity sensor, the temperature sensor and the lifting mechanism are all communicatively connected to the control module.

[0011] Optionally, the built-in installation table includes a bottom plate and an installation table arranged above the bottom plate. Electrical accessories are installed on the installation table.

[0012] Optionally, four groups of legs are symmetrically arranged at the bottom of the outer box shell; the lifting mechanism includes four electric telescopic rods. One electric telescopic rod is arranged in any one of the legs, and the top end of any one electric telescopic rod penetrates through the bottom wall of the outer box shell and is connected to the bottom plate.

[0013] Optionally, sliding grooves extending from front to back are opened at the top of both sides of the door frame. The top parts of both sides of the box door are respectively slidably hinged to the two sliding grooves through hinge pins; a support column is arranged below any one of the sliding grooves. When the box door is turned upwards and opened around the hinge pin and slides from front to back along the sliding groove, it can be kept in a horizontal state under the support of the support column.

[0014] Optionally, the sliding groove includes a circular hinge hole and a rectangular slideway that are sequentially penetrated from front to back. The hinge pin is rotationally matched with the circular hinge hole, and the hinge pin is slidably matched with the rectangular slideway.

[0015] Optionally, sector-shaped rain-proof enclosures are connected between the top parts of both sides of the box door and the door frame, and the sector-shaped rain-proof enclosures contract when the box door is closed and expand when the box door is opened.

[0016] Optionally, heat dissipation areas are provided on both the left and right side walls of the outer box shell, and a hole shielding assembly is provided between any one of the heat dissipation areas and the built-in mounting platform.

[0017] Optionally, any one of the heat dissipation holes is a strip-shaped heat dissipation hole extending from front to back, and a rain shield is provided above any one of the strip-shaped heat dissipation holes, and the outer end of any one of the rain shields is bent downward.

[0018] Optionally, the bump includes an arc transition section and a straight section. The arc transition section protrudes towards the outer box shell. The top end of the arc transition section is connected to the built-in mounting platform, and the bottom end of the arc transition section is connected to the top end of the straight section. A buffer spring is provided between the bottom of the arc transition section and the built-in mounting platform, and between the straight section and the built-in mounting platform.

[0019] Optionally, a semiconductor condensation dehumidification device is provided inside the outer box shell; a lightning arrester is provided on the outer top of the outer box shell.

[0020] The present invention has achieved the following technical effects compared with the prior art:

[0021] The rainproof cable distribution box proposed by the present invention is provided with a liftable built-in mounting platform inside the outer box shell, and a hole shielding assembly is arranged between the built-in mounting platform and the heat dissipation area on the side wall of the outer box shell. When it rains, the lift mechanism can be used to drive the built-in mounting platform to rise, thereby triggering the hole shielding assembly to block and seal the heat dissipation holes in the heat dissipation area, avoiding rainwater from entering the box due to the open heat dissipation holes. When it does not rain, the lift mechanism is used to drive the built-in mounting platform to lower and reset, and the hole shielding assembly opens all the heat dissipation holes in the heat dissipation area, and the heat dissipation holes resume their heat dissipation function. The present invention adopts the method of using a lift mechanism to drive the built-in mounting platform to rise and fall, and cooperates with the ingenious structural arrangement of the hole shielding assembly to realize the switching between the heat dissipation mode and the closed mode of the outer box shell. On the basis of ensuring the heat dissipation performance of the box body, the rainproof performance of the cable distribution box is improved, and the probability of failure or accident of the cable distribution box in rainy days is effectively reduced, solving the problem that the existing cable distribution box cannot have both heat dissipation performance and rainproof performance. At the same time, raising the built-in mounting platform on rainy days can also avoid the electrical equipment on the built-in mounting platform from being soaked and damaged by the water entering the outer box shell, further improving the use safety of the cable distribution box in rainy days.

[0022] In some technical solutions of the present invention, a sliding hinge cooperation method is adopted between the box door and the door frame of the outer box shell, which is convenient for opening and closing, and the box door can be kept in an open state without manual operation; and since the box door in the open state can be kept horizontal, it cooperates with the fan-shaped rainproof enclosures opened on both sides to jointly enclose a multi-directional rainproof structure, which can shelter the operators who repair the equipment on rainy days, and is of great significance for facilitating the repair of cables outdoors in the rain; at the same time, the formation of the multi-directional rainproof structure can further prevent rainwater from entering the box, effectively improving the safety of equipment repair on rainy days. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the rainproof cable distribution box disclosed in the embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the rainproof cable distribution box disclosed in the embodiment of the present invention when the box door is in an open state;

[0026] Figure 3 It is a schematic diagram of the installation of the hole shielding component and the heat dissipation area in the rainproof cable distribution box disclosed in the embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the rainproof cable distribution box disclosed in the embodiment of the present invention when the built-in installation platform is in the lowest position;

[0028] Figure 5 It is a position relationship diagram of the convex block and the hole shielding plate bracket when the built-in installation platform is in the lowest position in the rainproof cable distribution box disclosed in the embodiment of the present invention (at this time, the heat dissipation holes are in an open state);

[0029] Figure 6 It is a schematic diagram of the structure of the rainproof cable distribution box disclosed in the embodiment of the present invention when the built-in installation platform is in the highest position;

[0030] Figure 7 It is a position relationship diagram of the convex block and the hole shielding plate bracket when the built-in installation platform is in the highest position in the rainproof cable distribution box disclosed in the embodiment of the present invention (at this time, the heat dissipation holes are blocked by the corresponding hole shielding plates);

[0031] Figure 8 It is a schematic diagram of the structure between the box door and the door frame when the box door of the rainproof cable distribution box disclosed in the embodiment of the present invention is opened;

[0032] Figure 9 The front view of the structure between the cabinet door and the door frame when the cabinet door of the rainproof cable branch box disclosed in the embodiment of the present invention is opened;

[0033] Figure 10 It is Figure 9 The enlarged structural schematic diagram of the position A in;

[0034] Figure 11 The assembly structural schematic diagram of the cabinet door and the sliding groove disclosed in the embodiment of the present invention;

[0035] Figure 12 The positional relationship diagram between the cabinet door and the support column during the process of the cabinet door of the embodiment of the present invention being closed to fully opened;

[0036] Among them, the reference numerals are:

[0037] 100, rainproof cable branch box;

[0038] 1, outer box shell; 11, door frame; 12, cabinet door; 13, heat dissipation holes; 14, sliding groove; 141, circular hinge hole; 142, rectangular slideway; 15, pin shaft; 16, support column; 17, fan-shaped rainproof enclosure; 18, rainproof baffle;

[0039] 2, support leg;

[0040] 3, built-in installation platform; 31, bottom plate; 32, installation platform;

[0041] 4, electric telescopic rod;

[0042] 5, hole covering component; 51, convex block; 511, arc transition section; 512, straight section; 52, slide rail; 53, hole covering plate bracket; 54, hole covering plate; 55, return spring; 56, buffer spring;

[0043] 6, semiconductor condensation dehumidification device;

[0044] 7, lightning arrester. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] One of the objectives of the present invention is to provide a rainproof cable distribution box, which can improve the rainproof performance of the cable distribution box on the basis of ensuring the heat dissipation performance of the box body, so as to solve the problem that the existing cable distribution box cannot have both heat dissipation performance and rainproof performance.

[0047] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Embodiment 1

[0049] As Figures 1 - 12As shown in the figure, this embodiment provides a rain-proof cable distribution box 100, which mainly includes an outer box shell 1, an internal installation platform 3, a hole-blocking component 5 and a monitoring component. Legs 2 are provided at the bottom of the outer box shell 1. A door frame 11 is provided on the front side of the outer box shell 1, and a box door 12 is configured at the door frame 11. A heat dissipation area is provided on the side wall of the outer box shell 1, and a number of heat dissipation holes 13 arranged from top to bottom are provided in the heat dissipation area; The internal installation platform 3 is movably arranged inside the outer box shell 1 and is used for installing and fixing electrical accessories, cables, etc.; The bottom of the internal installation platform 3 is connected to the outer box shell 1 through a lifting mechanism, and the lifting mechanism is used to raise the internal installation platform 3 relative to the outer box shell 1 when it rains; The hole-blocking component 5 includes a convex block 51, a slide rail 52, a hole-blocking plate support 53 and a hole-blocking plate 54. The hole-blocking plate support 53 is vertically arranged between the internal installation platform 3 and the heat dissipation area of the outer box shell 1. A plurality of hole-blocking plates 54 are arranged on the side of the hole-blocking plate support 53 facing the heat dissipation area, and the hole-blocking plates 54 are arranged in one-to-one correspondence with the heat dissipation holes 13 in the heat dissipation area; The slide rail 52 is horizontally arranged above the heat dissipation area, and one end of the slide rail 52 is connected to the inner wall of the outer box shell 1. The top of the hole-blocking plate support 53 is slidably connected to the bottom of the slide rail 52, and a return spring 55 is connected between the hole-blocking plate support 53 and the heat dissipation area. The convex block 51 is arranged at a position near the bottom of the side wall of the internal installation platform 3, and the side of the convex block 51 away from the internal installation platform 3 gradually protrudes outward from top to bottom. The convex block 51 is used to gradually squeeze the hole-blocking plate support 53 towards the heat dissipation area during the rising process of the internal installation platform 3 until the hole-blocking plate 54 on the hole-blocking plate support 53 fits against the inner wall of the outer box shell 1, so that the hole-blocking plate 54 completely blocks the corresponding heat dissipation hole 13, realizing the overall sealing of the outer box shell 1 and achieving the effect of preventing rainwater from entering the box. The return spring 55 is used to push the hole-blocking plate support 53 away from the heat dissipation area after the internal installation platform 3 descends, so that the hole-blocking plate 54 completely opens the corresponding heat dissipation hole 13, and the outer box shell 1 resumes its heat dissipation function. The monitoring component includes a control module, a humidity sensor and a temperature sensor. The humidity sensor, the temperature sensor and the above-mentioned lifting mechanism are all communicatively connected to the control module. The humidity sensor is installed on the outer box shell 1 and can be installed outside or inside the box. Under normal use conditions, in order to ensure good heat dissipation inside the box, each heat dissipation hole 13 in the heat dissipation area is in an open state. At this time, the inside of the outer box shell 1 is connected to the outside of the outer box shell 1. The humidity sensor detects the humidity in the air. When the humidity value reaches a certain preset value, the control module receives the signal and determines that it is a rainy state at this time. Then the control module can control the lifting mechanism to raise the internal installation platform 3 and push the hole-blocking plate support 53 towards the heat dissipation hole 13, realizing the blocking and sealing of the heat dissipation hole 13 by the hole-blocking plate, making the outer box shell 1 have overall sealing and achieving the rain-proof effect.Taking the humidity sensor disposed outside the outer box shell 1 as an example, when the humidity sensor detects that the external air humidity drops to a certain set value, the control module receives the signal and determines that it is not raining at this time. Then the control module can control the lifting mechanism to lower the built-in mounting platform 3, and the protrusion 51 releases the squeezing force on the perforated plate bracket 53. The perforated plate bracket 53 can be moved away from the heat dissipation area under the action of the reset spring 55, so that the perforated plate 54 fully opens the corresponding heat dissipation hole 13, and the heat dissipation area of ​​the outer box shell 1 resumes the heat dissipation function. The temperature sensor is generally only disposed inside the outer box shell 1. When the temperature sensor detects that the internal ambient temperature of the outer box shell 1 rises to a certain set value, the control module receives the high temperature signal and controls the opening of the blocked heat dissipation hole 13 to dissipate heat and cool the box, or the control module directly sends a remote alarm signal to remind maintenance personnel to perform corresponding maintenance.

[0050] In this embodiment, the built-in mounting platform 3 includes a bottom plate 31 and a mounting platform 32 arranged above the bottom plate 31, and the mounting platform 32 is used to install electrical accessories or fix cables. The above-mentioned electrical accessories are conventional accessories for cable branching or switching in existing cable branch boxes, and the details are not repeated here. The mounting platform 32 is preferably a rectangular parallelepiped structure, which is made of pressure-resistant and explosion-proof stainless steel, and the surface of the mounting platform 32 is insulated by coating an insulating layer or the like.

[0051] In this embodiment, the outer box shell 1 is a rectangular box shell, and four groups of legs 2 are symmetrically arranged at the bottom. Figures 1 - 12 As shown, four groups of legs 2 are respectively located at the four corners of the bottom of the outer box shell 1; correspondingly, the lifting mechanism includes four electric telescopic rods 4, any group of legs 2 are hollow legs, any group of legs 2 are provided with an electric telescopic rod 4, and the bottom end of any electric telescopic rod 4 is connected to the legs 2, and the top end passes through the bottom wall of the outer box shell 1 and is connected to the bottom plate 31. The bottom plate 31 is a rectangular plate, and the four electric telescopic rods 4 are respectively connected to the four corners of the lower surface of the bottom plate 31. This solution adopts a lifting mechanism to drive the lifting of the built-in mounting platform 3, so as to realize the switching of the heat dissipation mode and the closed mode of the outer box shell 1. At the same time, the built-in mounting platform 3 is raised on rainy days, which can also prevent the water in the outer box shell 1 from soaking and damaging the electrical equipment on the built-in mounting platform 3, further improving the safety of the cable branch box on rainy days.

[0052] In this embodiment, Figures 8 - 11As shown in the figure, sliding grooves 14 extending from front to back are provided at the top on both sides of the door frame 11. The top parts on both sides of the box door 12 are respectively and slidably hinged to the two sliding grooves 14 through pin shafts 15. Here, "slidably hinged" means that the pin shaft 15 is both hinged to the corresponding sliding groove 14 and can slide along the corresponding sliding groove 14; a support column 16 is provided below any one of the sliding grooves 14. The support column 16 is located inside the outer box shell 1 and does not affect the opening and closing of the box door 12. When the box door 12 is turned upward around the pin shaft 15 to a horizontal state and slides from front to back along the sliding groove 14 to above the support column 16, at this time, the box door 12 can be kept in a horizontal state under the support of the support column 16. The support column 16 and the pin shaft 15 are arranged in parallel. The pin shaft 15 is of a cylindrical structure, and the support column 16 can be either of a cylindrical structure or of a prismatic structure.

[0053] In this embodiment, as Figures 11 - 12 shown, the sliding groove 14 includes a circular hinge hole 141 and a rectangular slideway 142 that are sequentially penetrated from front to back. The pin shaft 15 is hinged to the circular hinge hole 141, that is, the pin shaft 15 is rotationally engaged with the circular hinge hole 141, and the pin shaft 15 is slidably engaged with the rectangular slideway 142. The pin shaft 15 can slide from the circular hinge hole 141 into the rectangular slideway 142. As Figure 12 shown, the closed box door 12 is in a vertical state. When the box door 12 is turned counterclockwise as Figure 12 shown, the box door 12 gradually tends to be horizontal. When the box door 12 is in a horizontal state, it is in a fully open state. If electrical equipment needs to be repaired, the box door 12 needs to be kept in an open state. At this time, move the horizontally placed box door 12 in the direction of the left arrow as Figure 12 shown. The pin shaft 15 of the box door 12 will slide from the circular hinge hole 141 into the rectangular slideway 142. Then continue to move the box door 12 to the left until the box door 12 moves above the support column 16 and forms a lap joint with the support column 16. The box door 12 can be released. At this time, the box door 12 is supported by the support column 16 and can be kept in an open state without manual assistance. At the same time, if equipment repair is carried out on a rainy day, the opened box door 12 can also play a role in shielding rain for the repair workers and preventing rainwater from falling into the box. If the box door 12 needs to be closed, move the box door 12 in the reverse direction (pull forward) until the pin shaft 15 slides from the rectangular slideway 142 into the circular hinge hole 141. Then, the box door 12 can be closed by turning the box door 12 downward. To ensure the use safety of the cable distribution box, generally, a concealed lock structure is configured on the box door 12. After the box door 12 is closed, it is locked by the box door 12 to avoid the loss of electrical equipment or the occurrence of accidental electric shock caused by human touch.

[0054] In this embodiment, a sector-shaped rain shield 17 is connected between the top parts on both sides of the box door 12 and the door frame 11, as Figure 2 and Figure 3As shown, the fan-shaped rain shield 17 contracts when the box door 12 is closed and expands when the box door 12 is opened. The setting of the fan-shaped rain shield 17 can prevent rainwater from falling into the box from the side of the door frame 1 during equipment maintenance on rainy days. The box door 12 that is opened and in a horizontal state, together with the fan-shaped rain shields 17 that are expanded on both sides, jointly enclose a multi-directional rain shielding structure, improving the safety of equipment maintenance on rainy days. The above-mentioned fan-shaped rain shield 17 uses conventional rainproof cloth, such as polyester, PG cloth, nylon, transparent plastic, etc. used for making umbrellas. These are all soft materials, which do not affect the opening, closing, flipping, and movement in the horizontal state of the box door 12. In actual operation, the fan-shaped rain shield 17 only plays an auxiliary role in rain shielding and does not need to be tightly connected to the door frame 11 and the box door 12. During the process of the box door 12 being opened and horizontally moved above the support column 16, the soft fan-shaped rain shield 17 allows some stacking and wrinkling to occur, but does not affect the movement of the box door 12.

[0055] In this embodiment, heat dissipation areas are provided on both the left and right side walls of the outer box shell 1, and a hole shielding component 5 is provided between any one heat dissipation area and the built-in installation platform 3. As Figure 5 and Figure 7 shown, it is a schematic diagram of the cooperation between the left and right groups of hole shielding components 5 and the left and right groups of heat dissipation areas. The structures of the left and right groups of heat dissipation areas are preferably exactly the same, and the two groups of heat dissipation areas are arranged symmetrically left and right. The working states of the two groups of hole shielding components 5 are also exactly the same.

[0056] In this embodiment, any one heat dissipation hole 13 is preferably a strip-shaped heat dissipation hole extending from front to back, and a rain shield 18 is provided above any one strip-shaped heat dissipation hole. The outer end of any one rain shield 18 is bent downward. The setting of the rain shield 18 can effectively prevent rainwater from falling into the box through the heat dissipation hole 13. Especially in situations such as the humidity sensor failing and the lifting mechanism malfunctioning, even if the heat dissipation hole 13 is not blocked in time during rain, the rain shield 18 can basically prevent rainwater from falling into the box through the heat dissipation hole 13. The rain shield 18 is preferably a three-sided semi-surrounding structure that shields rain from the top and both sides, and it is preferably integrally formed with the outer box shell 1.

[0057] In this embodiment, as Figures 4 - 7As shown in the figure, the bump 51 includes an arc transition section 511 and a straight section 512. The arc transition section 511 protrudes towards the outer box shell 1. The top end of the arc transition section 511 is connected to the built-in mounting table 3, and the bottom end of the arc transition section 511 is connected to the top end of the straight section 512. A buffer spring 56 is provided between the bottom of the arc transition section 511 and the built-in mounting table 3, and between the straight section 512 and the built-in mounting table 3. During the upward movement of the built-in mounting table 3, the arc transition section 511 moves upward accordingly and pushes the hole-blocking plate bracket 53 closer to the heat dissipation area. When the bottommost end of the arc transition section 511 touches the hole-blocking plate bracket 53, the hole-blocking plate bracket 53 is completely pressed against the side wall of the heat dissipation area of the outer box shell 1. The straight section 512 is vertically arranged and is tangent to the bottommost end of the arc transition section 511. As the built-in mounting table 3 continues to rise, the straight section 512 maintains the pressing state on the hole-blocking plate bracket 53 to ensure the blocking effect of the hole-blocking plate 54. The setting of the buffer spring 56 can further ensure that the straight section 512 always remains in contact with the hole-blocking plate bracket 53 during the upward movement, ensuring that the hole-blocking plate 54 is effectively blocked.

[0058] In this embodiment, a semiconductor condensation dehumidification device 6 is provided inside the outer box shell 1 for dehumidifying the inside of the outer box shell 1; a lightning arrester 7 is provided on the outer top of the outer box shell 1. The semiconductor condensation dehumidification device 6 and the lightning arrester 7 are both prior arts, and their specific structures and working principles will not be elaborated here.

[0059] For the rainproof cable distribution box proposed by this technical solution, by arranging a liftable built-in mounting table 3 inside the outer box shell 1 and arranging a hole-blocking component between the built-in mounting table 3 and the heat dissipation area on the side wall of the outer box shell 1, when it rains, the lift mechanism can be used to drive the built-in mounting table 3 to rise, thereby triggering the hole-blocking component to block and seal the heat dissipation holes in the heat dissipation area, avoiding rainwater from entering the box due to the open heat dissipation holes; when it does not rain, the lift mechanism is used to drive the built-in mounting table 3 to lower and reset, and the hole-blocking component opens all the heat dissipation holes in the heat dissipation area, and the heat dissipation holes resume their heat dissipation function. This solution uses the lift mechanism to drive the built-in mounting table 3 to lift and lower, and then cooperates with the ingenious structural arrangement of the hole-blocking component to realize the switching between the heat dissipation mode and the closed mode of the outer box shell 1. On the basis of ensuring the heat dissipation performance of the box body, the rainproof performance of the cable distribution box is improved, and the problem that the existing cable distribution box cannot have both heat dissipation performance and rainproof performance is solved. At the same time, setting the built-in mounting table 3 to rise on rainy days can also prevent the electrical equipment on the built-in mounting table 3 from being soaked and damaged by the water entering the outer box shell 1, further improving the use safety of the cable distribution box on rainy days.

[0060] In addition, a sliding hinge fitting mode is adopted between the box door and the door frame of the outer box shell 1, which is convenient for opening and closing, and the box door can be kept in an open state without manual operation. Moreover, since the box door in the open state can be kept horizontal, it cooperates with the fan-shaped rain-proof enclosures 17 opened on both sides to jointly form a multi-directional rain-proof structure, which can shelter the operators who perform equipment maintenance on rainy days from the rain, and at the same time prevent rainwater from entering the box, effectively improving the safety of equipment maintenance on rainy days.

[0061] It should be noted that for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0062] Specific examples are used in the present invention to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A rainproof cable distribution box, characterized in that, Comprising: An outer box shell, legs are provided at the bottom of the outer box shell, a door frame is provided on the front side of the outer box shell, a box door is configured at the door frame, a heat dissipation area is provided on the side wall of the outer box shell, and a plurality of vertically arranged heat dissipation holes are provided in the heat dissipation area; An internal installation platform, which is movably arranged in the outer box shell and is used for installing electrical accessories; the bottom of the internal installation platform is connected to the outer box shell through a lifting mechanism, and the lifting mechanism is used to raise the internal installation platform relative to the outer box shell when it rains; A hole covering component, which includes a convex block, a slide rail, a hole covering plate support and a hole covering plate. The hole covering plate support is vertically arranged between the internal installation platform and the heat dissipation area of the outer box shell. A plurality of the hole covering plates are arranged on the side of the hole covering plate support facing the heat dissipation area, and the hole covering plates are arranged in one-to-one correspondence with the heat dissipation holes in the heat dissipation area; the slide rail is horizontally arranged above the heat dissipation area, and one end of the slide rail is connected to the inner wall of the outer box shell. The top of the hole covering plate support is slidably connected to the bottom of the slide rail, and a return spring is connected between the hole covering plate support and the heat dissipation area. The convex block is arranged at a position near the bottom of the side wall of the internal installation platform, and the side of the convex block away from the internal installation platform gradually protrudes outwards from top to bottom. The convex block is used to squeeze the hole covering plate support towards the heat dissipation area during the rising process of the internal installation platform, so that the hole covering plate completely blocks the corresponding heat dissipation hole; the return spring is used to push the hole covering plate support away from the heat dissipation area after the internal installation platform descends, so that the hole covering plate completely opens the corresponding heat dissipation hole; A monitoring component, which includes a control module, a humidity sensor and a temperature sensor. The humidity sensor, the temperature sensor and the lifting mechanism are all communicatively connected to the control module.

2. The rainproof cable distribution box according to claim 1, characterized in that, The internal installation platform includes a bottom plate and an installation platform arranged above the bottom plate, and the electrical accessories are installed on the installation platform.

3. The rainproof cable distribution box according to claim 2, wherein Four groups of the legs are symmetrically arranged at the bottom of the outer box shell; the lifting mechanism includes four electric telescopic rods. One electric telescopic rod is arranged in any one of the legs, and the top end of any one electric telescopic rod penetrates through the bottom wall of the outer box shell and is connected to the bottom plate.

4. The rainproof cable distribution box according to any one of claims 1 to 3, characterized in that, Chutes extending from front to back are provided at the top of both sides of the door frame, and the top parts of both sides of the box door are respectively slidably hinged to the two chutes through hinge pins; support columns are arranged below any one of the chutes. When the box door is turned upwards and opened around the hinge pin and slides from front to back along the chute, it can be kept in a horizontal state under the support of the support columns.

5. The rainproof cable distribution box according to claim 4, characterized in that The chute includes a circular hinge hole and a rectangular slideway that are sequentially penetrated from front to back. The hinge pin is rotationally matched with the circular hinge hole, and the hinge pin is slidably matched with the rectangular slideway.

6. The rainproof cable distribution box according to claim 4, characterized in that, Sector-shaped rainproof enclosures are connected between the top parts of both sides of the box door and the door frame, and the sector-shaped rainproof enclosures contract when the box door is closed and expand when the box door is opened.

7. The rainproof cable distribution box according to any one of claims 1 to 3, characterized in that, The left and right side walls of the outer box shell are both provided with the heat dissipation areas, and the hole shielding components are arranged between any one of the heat dissipation areas and the built-in mounting table.

8. The rainproof cable distribution box according to claim 7, characterized in that, Any one of the heat dissipation holes is a strip-shaped heat dissipation hole extending from front to back, and a rain shield is arranged above any one of the strip-shaped heat dissipation holes, and the outer end of any one of the rain shields is bent downward.

9. The rainproof cable distribution box according to claim 7, wherein, The bump includes an arc transition section and a straight section. The arc transition section protrudes towards the outer box shell. The top end of the arc transition section is connected to the built-in mounting table, and the bottom end of the arc transition section is connected to the top end of the straight section. Buffer springs are arranged between the bottom of the arc transition section and the built-in mounting table, and between the straight section and the built-in mounting table.

10. The rainproof cable distribution box according to any one of claims 1 to 3, characterized in that A semiconductor condensation dehumidification device is arranged inside the outer box shell; a lightning arrester is arranged on the outer top of the outer box shell.

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