Waterproof box

Abstract

The waterproof box comprises a waterproof box body, two sealing gaskets and two waterproof nuts, the waterproof box body comprises a first sub-box body and a second sub-box body, and the first sub-box body and the second sub-box body are connected and sealed, so that a waterproof cavity is defined between the first sub-box body and the second sub-box body; the first sub-box body and the second sub-box body are matched to form two screw joints, the two screw joints are arranged at two ends of the waterproof box main body, and each screw joint is provided with an external thread; the two sealing gaskets and the two screw joints are in one-to-one correspondence, and the two sealing gaskets are installed in the corresponding screw joints and abut against the first cable or the second cable; each waterproof nut comprises a first sub-nut and a second sub-nut, the first sub-nut is detachably connected to the second sub-nut, so that the first sub-nut and the second sub-nut jointly form an internal thread and a necking part, and the internal thread can be in threaded connection with the corresponding external thread and is used for guiding the necking part to compress the corresponding sealing gasket.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of waterproof protection of outdoor power supply, in particular to a waterproof box. BACKGROUND

[0002] When using a power plug and a power socket outdoors, the electrical connection part between the two usually needs to be waterproof and sealed to achieve effective protection in a rain environment. However, since the power plug itself has a plug, and the power socket is also connected to a plug through a cable, most existing waterproof structures can only be integrated at one end of the socket, or can only seal the part where the plug and the socket meet, and cannot cover the cable exit area, so that the cable interface is easily exposed to moisture or rain, thereby reducing the reliability and safety of the overall waterproof seal. SUMMARY

[0003] Therefore, it is necessary to provide a waterproof box for solving the above technical problems.

[0004] A waterproof box, the waterproof box comprising: a waterproof box body comprising a first sub-box body and a second sub-box body, the first sub-box body being capable of being connected and sealed with the second sub-box body to form a waterproof chamber between the first sub-box body and the second sub-box body, and to form two screw joints with the first sub-box body and the second sub-box body, the two screw joints being arranged at two ends of the waterproof box body, and each of the screw joints having an external thread formed thereon, wherein the waterproof chamber is used to accommodate a plugged power socket and a power plug, a first cable on the power socket extending outward from one of the screw joints, and a second cable on the power plug extending outward from the other screw joint; two sealing gaskets corresponding to the two screw joints, and the two sealing gaskets being installed inside the corresponding screw joints and abutting against the first cable or the second cable; two waterproof nuts corresponding to the two screw joints, wherein each of the waterproof nuts comprises a first sub-nut and a second sub-nut, the first sub-nut being detachably connected to the second sub-nut to form an internal thread and a necked portion together with the second sub-nut, the internal thread being capable of being screwed with the corresponding external thread to guide the necked portion to compress the corresponding sealing gasket.

[0005] It can be understood that by adopting the split waterproof nut which is threadedly connected with the screw joint and compresses the internal sealing gasket, the waterproof box can cover the power socket, the power plug and the cable leading-out area of each of them in the sealing range, which effectively covers the key part of the cable interface, blocks the moisture and rain from entering the waterproof box from the interface, and significantly improves the overall sealing reliability and use safety of the waterproof box.

[0006] In one of the embodiments, a plurality of tabs are formed on each of the screw joints, and the plurality of tabs are arranged in sequence along the circumferential direction of the screw joint. Furthermore, the plurality of tabs are arranged between the corresponding sealing gasket and the corresponding waterproof nut, and the necked portion of the waterproof nut can compress the corresponding sealing gasket through the plurality of tabs.

[0007] It can be understood that the use of the tab structure enables the waterproof nut to directly compress and push the sealing gasket when tightened, so that the sealing gasket can tightly wrap and hold the cable under the pushing of the tab, which can significantly improve the mechanical stability of the waterproof box when fixing the cable, effectively preventing the cable from being displaced due to external force pulling or shaking; on the other hand, it also ensures that a uniform and lasting extrusion seal is formed between the sealing gasket and the outer surface of the cable, fundamentally improving the waterproof reliability of the waterproof box to the cable.

[0008] In one of the embodiments, the necked portion is conical. Furthermore, the installation position of the waterproof nut on the corresponding screw joint can be adjusted to adjust the compression amount of the necked portion when compressing the corresponding sealing gasket.

[0009] It can be understood that the control of the different compression amounts of the sealing gasket by the waterproof nut enables the waterproof box to be applicable to the sealing of cables with different diameters, which expands the application range of the waterproof box.

[0010] In one of the embodiments, the first split nut is rotationally connected to the second split nut, and the first split nut and the second split nut can be locked by clamping. The waterproof nut has an expanded state and a closed state, when the waterproof nut is in the expanded state, the first split nut can be flipped relative to the second split nut; when the waterproof nut is in the closed state, the first split nut and the second split nut are locked.

[0011] It can be understood that the clamping is used to lock the first split nut and the second split nut which are in rotation, which can facilitate the disassembly and assembly of the waterproof nut on the corresponding screw joint, and is conducive to the operation and use of the waterproof box on site.

[0012] In one of the embodiments, one of the first and second sub-nuts is configured with a protruding tab, and the other is configured with a recess; When the waterproof nut is in the closed state, the tab can be inserted into the recess.

[0013] It can be understood that the insertion between the tab and the recess can ensure the accuracy of the position of the first and second sub-nuts when they are closed, which is beneficial to the screwing of the first and second sub-nuts with the corresponding screw joint after being closed.

[0014] In one of the embodiments, the first sub-box is provided with two first sub-joints, and the two first sub-joints are arranged at two ends of the first sub-box; The second sub-box is provided with two second sub-joints, and the two second sub-joints are arranged at two ends of the second sub-box; When the first sub-box and the second sub-box are connected and sealed, the two first sub-joints and the two second sub-joints are connected and matched to form the two screw joints.

[0015] In one of the embodiments, each of the sealing pads includes a first sub-sealing pad and a second sub-sealing pad, and the first sub-sealing pad is independently arranged relative to the second sub-sealing pad; The first sub-sealing pad is installed in the first sub-joint, and the second sub-sealing pad is installed in the second sub-joint.

[0016] It can be understood that the split sealing pad is used to realize the waterproof sealing of the cable, so that the first and second sub-sealing pads can be pre-installed in the first and second sub-joints, and then combined with the connection between the first and second sub-boxes to form a sealing pad structure, which facilitates the assembly of the sealing pad in the waterproof box.

[0017] In one of the embodiments, the first sub-sealing pad has a first wire clamping portion, and the second sub-sealing pad has a second wire clamping portion; When the first sub-box and the second sub-box are connected and sealed, the first and second wire clamping portions are arranged on two opposite sides and can be elastically deformed at the same time.

[0018] It can be understood that the elastic deformation of the first and second wire clamping portions of the first and second sub-sealing pads under pressure can realize the second sealing of the cable, which can ensure the sealing performance of the waterproof box when sealing the cable.

[0019] In one embodiment, the first compartment is rotatably connected to the second compartment, and the first compartment and the second compartment can be locked together by a snap-fit ​​mechanism. The waterproof box body has an unfolded state and a closed state. When the waterproof box body is in the unfolded state, the first sub-box can be flipped relative to the second sub-box; when the waterproof box body is in the closed state, the first sub-box and the second sub-box are locked together.

[0020] It is understandable that using a snap-fit ​​mechanism to lock the rotating first and second sub-boxes together not only facilitates the assembly and disassembly of the first and second sub-boxes, but also benefits the operation of the waterproof box on site.

[0021] In one embodiment, the first and / or the second compartment are provided with hooks, and the waterproof box body can be suspended laterally via the hooks.

[0022] Understandably, using hooks to hang the waterproof box horizontally not only facilitates its use on site but also improves the overall sealing performance of the waterproof box.

[0023] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The waterproof box claimed in this application uses a split waterproof nut and a threaded connector to compress the internal sealing gasket, which allows the waterproof box to include the power socket, power plug, and the cable outlet areas of both within the sealed range. This design effectively covers the critical parts of the cable interface, preventing moisture and rainwater from entering the waterproof box from the interface, thereby significantly improving the overall sealing reliability and safety of the waterproof box. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural diagram of the waterproof box provided in this application.

[0026] Figure 2 for Figure 1 Sectional view of AA.

[0027] Figure 3 This is a structural schematic diagram of the waterproof box provided in this application from another perspective.

[0028] Figure 4 This is a structural diagram of another state of the waterproof box provided in this application.

[0029] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0030] Figure 6 This is a structural schematic diagram of the main body of the waterproof box in this application.

[0031] Figure 7 This is a schematic diagram of the waterproof nut in this application.

[0032] Reference numerals: 100, Waterproof box; 10, Waterproof box body; 101, Waterproof chamber; 110, First hinge; 11, First sub-box body; 111, Buckle plate; 112, First opening edge; 113, First tap; 12, Second sub-box body; 121, Limiting post; 122, Second opening edge; 123, Second tap; 13, Threaded connector; 131, External thread; 132, Paddle; 14, Hook; 20, Sealing gasket; 21, First... 1. Sealing gasket; 211. First wire clamping part; 22. Second sealing gasket; 221. Second wire clamping part; 30. Waterproof nut; 310. Internal thread; 320. Recessed part; 330. Second hinge; 31. First nut; 311. Clamping plate; 312. Groove; 32. Second nut; 321. Connecting protrusion; 322. Protrusion; 200. Power plug; 201. Second cable; 300. Power socket; 301. First cable. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] The waterproof box 100 claimed in this application, as an independent unit, is capable of providing a waterproof seal for the plug-in power plug 200 and power socket 300.

[0037] like Figures 1 to 7 As shown, the waterproof box 100 provided in this application includes a waterproof box body 10, two sealing gaskets 20, and two waterproof nuts 30. The waterproof box body 10 includes a first sub-box 11 and a second sub-box 12. The first sub-box 11 and the second sub-box 12 are connected and sealed to form a waterproof chamber 101. The first sub-box 11 and the second sub-box 12 are fitted together to form two screw joints 13. The two screw joints 13 are disposed at both ends of the waterproof box body 10, and each screw joint 13 has an external thread 131. The waterproof chamber 101 is used to accommodate a plugged-in power socket 300 and a power plug 200. The first cable 301 on the power socket 300 passes through one of the screw joints 13. Extending outwards, the second cable 201 on the power plug 200 extends outwards from another screw connector 13; two sealing gaskets 20 correspond one-to-one with the two screw connectors 13, and the two sealing gaskets 20 are installed inside the corresponding screw connectors 13 and abut against the first cable 301 or the second cable 201; two waterproof nuts 30 correspond one-to-one with the two screw connectors 13, wherein each waterproof nut 30 includes a first sub-nut 31 and a second sub-nut 32, the first sub-nut 31 is detachably connected to the second sub-nut 32 so that the first sub-nut 31 and the second sub-nut 32 together form an internal thread 310 and a constricted portion 320, the internal thread 310 can be screwed into the corresponding external thread 131, for guiding the constricted portion 320 to compress the corresponding sealing gasket 20.

[0038] As can be seen from the above, the waterproof box 100 of this application uses a split waterproof nut 30 to engage with the threaded connector 13 and compress the internal sealing gasket 20, so that the waterproof box 100 can include the power socket 300, the power plug 200 and the lead-out areas of their respective cables within the sealed range. This design effectively covers the key parts of the cable interface, preventing moisture and rainwater from entering the waterproof box from the interface, thereby significantly improving the overall sealing reliability and safety of the waterproof box 100.

[0039] like Figure 1 , Figure 3 ,Figure 4 and Figure 6 As shown, in one embodiment, the first sub-box 11 is rotatably connected to the second sub-box 12, and the first sub-box 11 and the second sub-box 12 can be locked together by a snap-fit ​​mechanism. Furthermore, the waterproof box body 10 has an unfolded state and a closed state. When the waterproof box body 10 is in the unfolded state, the first sub-box 11 can be flipped relative to the second sub-box 12; when the waterproof box body 10 is in the closed state, the first sub-box 11 and the second sub-box 12 are locked together. In other words, this embodiment uses a snap-fit ​​mechanism to achieve the locking between the first sub-box 11 and the second sub-box 12. This not only facilitates the assembly and disassembly of the first sub-box 11 and the second sub-box 12, but also benefits the on-site operation and use of the waterproof box 100. Here, the accommodating cavity formed by the first sub-box 11 itself is specifically half of the waterproof chamber 101 formed when it is connected and sealed with the second sub-box 12, making the shapes of the first sub-box 11 and the second sub-box 12 substantially the same.

[0040] like Figure 3 , Figure 6 The first sub-box 11 and the second sub-box 12 are rotatably connected by a first hinge 110. A snap-on plate 111 is formed on the opposite end of the first sub-box 11, and the snap-on plate 111 can be flipped relative to the first sub-box 11. Correspondingly, a limiting post 121 is formed on the opposite end of the second sub-box 12, and the snap-on plate 111 can engage with the limiting post 121, thus achieving the engagement between the first sub-box 11 and the second sub-box 12. Here, the snap-on plate 111 and the first sub-box 11 are designed as a single piece of plastic, and the limiting post 121 and the second sub-box 12 can also be designed as a single piece of plastic. Alternatively, the first sub-box 11 and the second sub-box 12 can be designed as independent units, and the assembly connection between the first sub-box 11 and the second sub-box 12 can be achieved by a snap-on connection.

[0041] like Figure 6 As shown, the first sub-box 11 has a first opening edge 112, and the second sub-box 12 has a second opening edge 122. When the first sub-box 11 and the second sub-box 12 are connected and sealed, the first opening edge 112 and the second opening edge 122 are mated and sealed. Preferably, the first opening edge 112 and the second opening edge 122 are mated and sealed by a concave-convex fit, which can further improve the sealing performance of the connection between the first sub-box 11 and the second sub-box 12.

[0042] like Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, in one embodiment, the first sub-box 11 and / or the second sub-box 12 are provided with hooks 14, and the waterproof box body 10 can be hung horizontally through the hooks 14. By using the horizontal hanging method, when the waterproof box 100 is hung through the hooks 14, the waterproof box 100 can be installed horizontally. This not only facilitates the use of the waterproof box 100 on site, but also helps the waterproof box 100 to achieve a good seal.

[0043] Here, the hook 14 is disposed on the first sub-box 11, and can be connected to the first sub-box 11 as a whole; wherein, the number of hooks 14 is set to two, specifically, the hooks 14 can be arranged on the two outer sides of the two buckle plates 111 on the first sub-box 11, so as to improve the stability of the waterproof box 100 when it is suspended horizontally. Of course, in other embodiments, one hook 14 can also be disposed on the first sub-box 11 and the other on the second sub-box 12, or both hooks 14 can be disposed on the second sub-box 12.

[0044] like Figure 6 As shown, in one embodiment, the first sub-box 11 is provided with two first taps 113, which are located at both ends of the first sub-box 11; the second sub-box 12 is provided with two second taps 123, which are located at both ends of the second sub-box 12; and when the first sub-box 11 and the second sub-box 12 are connected and sealed, the two first taps 113 and the two second taps 123 are mated and cooperate to form two screw joints 13. That is to say, the two screw joints 13 on the waterproof box body 10 in this embodiment can be formed by mating the first taps 113 on the first sub-box 11 and the corresponding second taps 123 on the second sub-box 12, thus creating conditions for the subsequent installation of the sealing gasket 20 into the interior of the screw joints 13.

[0045] like Figure 2 , Figure 6As shown, in one embodiment, each screw connector 13 has a plurality of tabs 132 formed thereon, which are arranged sequentially at intervals along the circumferential direction of the screw connector 13. The tabs 132 are disposed between the corresponding sealing gasket 20 and the corresponding waterproof nut 30, and the constricted portion 320 of the waterproof nut 30 can compress the corresponding sealing gasket 20 through the tabs 132. That is, when the waterproof nut 30 of this embodiment is tightened, it can directly compress and push the sealing gasket 20 through the tabs 132, so that the sealing gasket 20 can tightly wrap and clamp the cable under the pushing of the tabs 132. This can significantly improve the mechanical stability of the waterproof box 100 when fixing the cable and effectively prevent the cable from shifting due to external pulling or shaking. On the other hand, it also ensures that a uniform and durable compression seal is formed between the sealing gasket 20 and the outer surface of the cable, fundamentally improving the reliability of the waterproof box 100 in preventing water seepage from the cable.

[0046] Here, each screw connector 13 has six paddles 132. Three paddles 132 are located on the first tap 113 of the first sub-box 11, and the other three paddles 132 are located on the second tap 123 of the second sub-box 12, corresponding to the three paddles 132 on the first tap 113. Of course, the number of paddles 132 on each screw connector 13 can also be four, eight, etc. The shape of each paddle 132 and the spacing between two adjacent paddles 132 in the circumferential direction of the screw connector 13 can be specifically set according to the usage requirements, which will not be elaborated here.

[0047] like Figure 4 , Figure 5 As shown, in one embodiment, each sealing gasket 20 includes a first sub-sealing gasket 21 and a second sub-sealing gasket 22, with the first sub-sealing gasket 21 being independently disposed relative to the second sub-sealing gasket 22. The first sub-sealing gasket 21 is installed within the first tap 113, and the second sub-sealing gasket 22 is installed within the second tap 123. In other words, this embodiment uses a split-type sealing gasket 20 to achieve waterproof sealing of the cable, allowing the first sub-sealing gasket 21 and the second sub-sealing gasket 22 to be pre-installed into the first tap 113 and the second tap 123, and then combined with the connection between the first sub-box 11 and the second sub-box 12 to form the sealing gasket 20 structure. This facilitates the assembly and application of the sealing gasket 20 within the waterproof box 100. Here, the first sub-sealing gasket 21 and the second sub-sealing gasket 22 are configured with the same structure, specifically, each sub-sealing gasket 20 can be half of the entire sealing gasket 20.

[0048] Here, the first sub-sealing gasket 21 is embedded in the first tap joint 113, specifically using a concave-convex fit to limit the assembly of the first sub-sealing gasket 21 within the first tap joint 113. Similarly, the second sub-sealing gasket 22 is embedded in the second tap joint 123, also specifically using a concave-convex fit to limit the assembly of the second sub-sealing gasket 22 within the second tap joint 123.

[0049] like Figure 5 In one embodiment, the first sub-sealing gasket 21 has a first wire-clamping portion 211, and the second sub-sealing gasket 22 has a second wire-clamping portion 221. Furthermore, when the first sub-box body 11 and the second sub-box body 12 are connected and sealed, the first wire-clamping portion 211 and the second wire-clamping portion 221 are positioned on opposite sides and can simultaneously undergo elastic deformation under pressure. In other words, this embodiment utilizes the elastic deformation of the first wire-clamping portion 211 on the first sub-sealing gasket 21 and the second wire-clamping portion 221 on the second sub-sealing gasket 22 under pressure to achieve a second seal for the first cable 301 and the second cable 201, thus ensuring the sealing performance of the waterproof box 100 when sealing the cables.

[0050] like Figure 7 As shown, in one embodiment, the constricted portion 320 is conical; and the installation position of the waterproof nut 30 on the corresponding threaded connector 13 can be adjusted to regulate the compression amount when the constricted portion 320 compresses the corresponding sealing gasket 20. In other words, by controlling the amount of screwing of the waterproof nut 30 on its internal thread 310 to the corresponding external thread 131 on the threaded connector 13, the compression amount of the constricted portion 320 on the sealing gasket 20 can be controlled. This allows the waterproof box 100 to be used for sealing cables with different wire diameters, thereby expanding the applicability of the waterproof box 100.

[0051] like Figure 4 , Figure 7 As shown, in one embodiment, the first nut 31 is rotatably connected to the second nut 32, and the first nut 31 and the second nut 32 can be locked together by a snap-fit ​​mechanism. The waterproof nut 30 has an unfolded state and a closed state. When the waterproof nut 30 is in the unfolded state, the first nut 31 can rotate relative to the second nut 32; when the waterproof nut 30 is in the closed state, the first nut 31 and the second nut 32 are locked together. In other words, this embodiment uses a snap-fit ​​mechanism to achieve rotatable locking between the first nut 31 and the second nut 32. This not only facilitates the assembly and disassembly of the first nut 31 and the second nut 32, but also benefits the on-site operation and use of the waterproof box 100. Here, half of the internal thread 310 is formed on the first nut 31, while the other half of the internal thread 310 is formed on the second nut 32.

[0052] like Figure 7 The first nut 31 and the second nut 32 are rotatably connected by a second hinge 330. A snap-fit ​​plate 311 is formed on the opposite end of the first nut 31, and the snap-fit ​​plate 311 can be flipped relative to the first nut 31. Correspondingly, a connecting protrusion 321 is formed on the opposite end of the second nut 32, and the snap-fit ​​plate 311 can snap into the connecting protrusion 321, thus achieving the snap-fit ​​connection between the first nut 31 and the second nut 32. Here, the snap-fit ​​plate 311 and the first nut 31 are made as a single piece of plastic, and the connecting protrusion 321 and the second nut 32 can also be made as a single piece of plastic. Of course, the first nut 31 and the second nut 32 can also be made as independent entities, and the snap-fit ​​connection between the first nut 31 and the second nut 32 can be achieved after docking.

[0053] Furthermore, such as Figure 7 As shown, one of the first nut 31 and the second nut 32 has a protruding tab 322, while the other has a groove 312. When the waterproof nut 30 is in the closed state, the tab 322 can engage with the groove 312, thereby ensuring the accuracy of the positions of the first nut 31 and the second nut 32 when closed, which facilitates the connection of the closed first nut 31 and the second nut 32 with the corresponding screw connector 13. Here, the tab 322 is provided on the second nut 32, and the groove 312 is provided on the first nut 31. Two tabs 322 are provided on opposite sides of the second nut 32. Of course, in other embodiments, both tabs can be provided on the first nut 31, or tabs and grooves can be provided on the first nut 31 and the second nut 32 respectively.

[0054] In summary, when the waterproof box 100 of this application is installed and used on site, firstly, the second sub-box 12 is correspondingly snapped onto the plugged-in power socket 300 and power plug 200, and the first cable 301 of the power socket 300 and the second cable 201 of the power plug 200 are respectively snapped into the second sealing gaskets 22 inside the two second taps 123 of the second sub-box 12; then, the first sub-box 11 is flipped over so that it covers the second sub-box 12, and the buckle plate 111 of the first sub-box 11 is pushed to lock with the limiting post 121 on the second sub-box 12; finally, the waterproof nut 30 is driven to close on the screw joint 13, and the waterproof nut 30 is screwed until it is tightened and cannot be turned any further, thus achieving a complete waterproof seal of the power socket 300, the power plug 200 and the two cables by the waterproof box 100.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A waterproof box, characterized in that, Waterproof box (100) includes: The waterproof box body (10) includes a first sub-box body (11) and a second sub-box body (12). The first sub-box body (11) can be connected and sealed with the second sub-box body (12) to form a waterproof chamber (101) between the first sub-box body (11) and the second sub-box body (12). The first sub-box body (11) and the second sub-box body (12) cooperate to form two screw joints (13). The two screw joints (13) are disposed at both ends of the waterproof box body (10). Each screw joint (13) has an external thread (131). The waterproof chamber (101) is used to accommodate a plugged-in power socket (300) and a power plug (200). The first cable (301) on the power socket (300) extends outward from one of the screw joints (13), and the second cable (201) on the power plug (200) extends outward from the other screw joint (13). Two sealing gaskets (20) correspond one-to-one with the two screw connectors (13), and the two sealing gaskets (20) are installed inside the corresponding screw connectors (13) and abut against the first cable (301) or the second cable (201); Two waterproof nuts (30) correspond one-to-one with two screw connectors (13). Each waterproof nut (30) includes a first sub-nut (31) and a second sub-nut (32). The first sub-nut (31) is detachably connected to the second sub-nut (32) so that the first sub-nut (31) and the second sub-nut (32) together form an internal thread (310) and a constriction portion (320). The internal thread (310) can be screwed into the corresponding external thread (131) to guide the constriction portion (320) to compress the corresponding sealing gasket (20).

2. The waterproof box according to claim 1, characterized in that, Each of the screw connectors (13) has a plurality of paddles (132) formed thereon, and the plurality of paddles (132) are arranged at intervals along the circumferential direction of the screw connector (13); Furthermore, multiple paddles (132) are disposed between the corresponding sealing gasket (20) and the corresponding waterproof nut (30), and the constricted portion (320) of the waterproof nut (30) can compress the corresponding sealing gasket (20) by the multiple paddles (132).

3. The waterproof box according to claim 1 or 2, characterized in that, The constricted portion (320) is conical in shape; Furthermore, the installation position of the waterproof nut (30) on the corresponding screw joint (13) can be adjusted to regulate the amount of compression when the constricted portion (320) compresses the corresponding sealing gasket (20).

4. The waterproof box according to claim 1, characterized in that, The first nut (31) is rotatably connected to the second nut (32), and the first nut (31) and the second nut (32) can be locked together by a snap-fit ​​method; The waterproof nut (30) has an unfolded state and a closed state. When the waterproof nut (30) is in the unfolded state, the first sub-nut (31) can be flipped relative to the second sub-nut (32). When the waterproof nut (30) is in the closed state, the first sub-nut (31) and the second sub-nut (32) are locked together.

5. The waterproof box according to claim 4, characterized in that, One of the first nut (31) and the second nut (32) is provided with a protruding tab (322), and the other is provided with a groove (312). When the waterproof nut (30) is in the closed state, the protrusion (322) can be inserted into the groove (312).

6. The waterproof box according to claim 1, characterized in that, The first sub-box body (11) is provided with two first taps (113), and the two first taps (113) are located at both ends of the first sub-box body (11); The second sub-box (12) is provided with two second taps (123), which are located at both ends of the second sub-box (12); When the first sub-box body (11) is connected and sealed with the second sub-box body (12), the two first taps (113) and the two second taps (123) are connected and cooperate to form two screw joints (13).

7. The waterproof box according to claim 6, characterized in that, Each of the sealing gaskets (20) includes a first sub-sealing gasket (21) and a second sub-sealing gasket (22), wherein the first sub-sealing gasket (21) is disposed independently relative to the second sub-sealing gasket (22); The first sub-sealing gasket (21) is installed inside the first tap (113), and the second sub-sealing gasket (22) is installed inside the second tap (123).

8. The waterproof box according to claim 7, characterized in that, The first sub-sealing gasket (21) has a first wire-locking portion (211), and the second sub-sealing gasket (22) has a second wire-locking portion (221). When the first sub-box body (11) and the second sub-box body (12) are connected and sealed, the first locking wire part (211) and the second locking wire part (221) are disposed on two opposite sides and can be simultaneously subjected to pressure and undergo elastic deformation.

9. The waterproof box according to claim 1, characterized in that, The first sub-box body (11) is rotatably connected to the second sub-box body (12), and the first sub-box body (11) and the second sub-box body (12) can be locked together by a snap-fit ​​method; The waterproof box body (10) has an unfolded state and a closed state. When the waterproof box body (10) is in the unfolded state, the first sub-box body (11) can be flipped relative to the second sub-box body (12). When the waterproof box body (10) is in the closed state, the first sub-box body (11) and the second sub-box body (12) are locked together.

10. The waterproof box according to claim 1, characterized in that, The first sub-box (11) and / or the second sub-box (12) are provided with hooks (14), and the waterproof box body (10) can be hung horizontally through the hooks (14).

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