Waterproof device

Abstract

The utility model provides a waterproof device, which is covered on a secondary terminal box and comprises an installation shell, a waterproof cover and a waterproof cover, the rear side of the installation shell is provided with an opening, so that the installation shell is covered on the secondary terminal box through the opening; the sealing assembly comprises a first sealing piece and a first fastening piece, the first sealing piece is fixedly arranged on the inner surface of the top wall of the mounting shell, the first fastening piece is arranged on the bottom wall of the mounting shell in a penetrating mode, and the first fastening piece abuts against the secondary terminal box so that the first sealing piece can abut against the top wall of the secondary terminal box in a matched mode. Through the technical scheme provided by the invention, the problems that the structure of the secondary terminal box is influenced by corrosion of metal parts in the related technology, so that gaps exist between the secondary terminal boxes, rainwater enters the secondary terminal boxes through the corrosion positions or the gaps, the secondary terminal boxes are short-circuited, and normal operation of the transformer substation is influenced can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a transformer substation technical field, specifically, relate to a waterproof device. BACKGROUND

[0002] The secondary terminal box is an important component for connecting outdoor electrical equipment and indoor measurement and control, protection and communication equipment in the power system, and is usually installed in transformer substations or power plants, used for signal transmission and control between electrical equipment, and the design of the secondary terminal box needs to consider waterproof, dustproof, corrosion resistance and other problems, and moisture-proof is an important factor to ensure the normal work of the secondary terminal box in the transformer substation, to ensure stable operation in the plum rain season.

[0003] In the related art, the service life of the secondary terminal box is long, and the metal parts are more and more serious, the corrosion of the parts will affect the sealing effect of the secondary terminal box, the corrosion of the metal parts will affect the structure of the secondary terminal box, so that there are gaps between the secondary terminal boxes, and rainwater will enter the secondary terminal box through the corrosion position or the gap, which will cause the secondary terminal box to short circuit and affect the normal operation of the transformer substation. UTILITY MODEL CONTENTS

[0004] The utility model provides a waterproof device to solve the problem that the corrosion of metal parts in the related art will affect the structure of the secondary terminal box, so that there are gaps between the secondary terminal boxes, and rainwater will enter the secondary terminal box through the corrosion position or the gap, which will cause the secondary terminal box to short circuit and affect the normal operation of the transformer substation.

[0005] The utility model provides a waterproof device, the waterproof device cover is arranged on the secondary terminal box, and the waterproof device comprises: an installation shell, the rear side of the installation shell has an opening, so that the installation shell is covered on the secondary terminal box through the opening; a sealing assembly comprising a first sealing element and a first fastener, the first sealing element is fixedly arranged on the inner surface of the top wall of the installation shell, the first fastener is arranged in the bottom wall of the installation shell, and the first fastener is in abutment with the secondary terminal box, so that the first sealing element is in abutment with the top wall of the secondary terminal box.

[0006] Further, the sealing assembly further comprises a second sealing element, the second sealing element is movably arranged on the bottom wall of the installation shell, and the first fastener abuts the second sealing element on the secondary terminal box.

[0007] Further, the first sealing member comprises a first plate body and a first sealing pad, the first plate body is connected with the top wall of the mounting shell, the first sealing pad is arranged on the second plane opposite to the first plane of the first plate body, and the first sealing pad is in sealing cooperation with the secondary terminal box; the second sealing member comprises a second plate body and a second sealing pad, the first end of the second plate body is movably arranged on the first side wall of the mounting shell, the second end of the second plate body is movably arranged on the second side wall opposite to the first side wall of the mounting shell, the second sealing pad is arranged on the upper surface of the second plate body, and the first fastener is in abutment with the lower surface of the second plate body and drives the second plate body to move towards the secondary terminal box, so that the second plate body is in sealing cooperation with the secondary terminal box through the second sealing pad.

[0008] Further, the sealing assembly further comprises a plurality of first fasteners, the plurality of first fasteners are arranged at intervals along the length direction of the bottom wall of the mounting shell, and the plurality of first fasteners are arranged on the bottom wall of the mounting shell and in abutment with the second plate body.

[0009] Further, the sealing assembly further comprises a third sealing member and a second fastener, the third sealing member is arranged in the mounting shell, the third sealing member is movably arranged on the first side wall of the mounting shell, and the second fastener is arranged on the mounting shell and in cooperation with the third sealing member, so as to control the third sealing member to move along the horizontal direction relative to the mounting shell and in sealing cooperation with the side wall of the secondary terminal box.

[0010] Further, the third sealing member comprises a third plate body and a third sealing pad, the third plate body is movably arranged on the mounting shell, the third sealing pad is arranged on the first plane of the third plate body, the second fastener is in abutment with the second plane of the third plate body and drives the third plate body to move towards the secondary terminal box, so that the third plate body is in sealing cooperation with the secondary terminal box through the third sealing pad, and a blocking structure for preventing rainwater from entering the mounting shell is arranged between the third plate body and the mounting shell.

[0011] Further, the blocking structure comprises a telescopic plate, the telescopic plate comprises a first plate segment and a second plate segment, the first plate segment and the second plate segment both extend along the vertical direction, the first plate segment and the second plate segment are arranged in nesting or stacking, the first side of the first plate segment is connected with the first side wall of the mounting shell, the first side of the second plate segment is slidably arranged on the second side of the first plate segment, the second side of the second plate segment is connected with the third plate body, and the inner side wall of part of the mounting shell, the telescopic plate and the outer surface of the third plate body constitute a drainage channel.

[0012] Further, the first side wall of the mounting shell is further provided with a third sealing member and a second fastener on the second side wall opposite to the first side wall, and the two third sealing members are arranged opposite to each other; the sealing assembly comprises a plurality of second fasteners, and the plurality of second fasteners are arranged on the side wall of the mounting shell.

[0013] Further, the waterproof device further comprises a rectangular frame arranged at the opening of the mounting shell, and the first fastener and the second fastener are both arranged through the rectangular frame.

[0014] Further, the lower part of the mounting shell is provided with a cable avoiding opening.

[0015] The waterproof device comprises a mounting shell and a sealing assembly, the rear side of the mounting shell is provided with an opening, so that the mounting shell can be covered on the secondary terminal box through the opening, and in order to avoid the problem that the secondary terminal box is easily corroded in rainy weather, the first sealing element of the sealing assembly is fixedly arranged on the inner surface of the top wall of the mounting shell, the first fastener is arranged through the bottom wall of the mounting shell, so that the first fastener is in abutting cooperation with the bottom wall of the secondary terminal box, so that an upward force can be applied to the secondary terminal box, since the top wall of the mounting shell is fixedly provided with the first sealing element, the first sealing element is subjected to an upward force of the first fastener, so that the sealing surface of the first sealing element is subjected to a force of the top wall of the secondary terminal box to realize sealing cooperation, the mounting shell is fixedly covered on the secondary terminal box in the vertical direction, the sealing effect is realized under the action of the first sealing element and the first fastener, rainwater is prevented from entering the secondary terminal box through the gap between the top of the secondary terminal box and the door frame, the sealing effect between the first sealing element and the secondary terminal box is realized, the mounting shell can be conveniently covered on the secondary terminal box, the installation mode is convenient, the sealing effect of the waterproof device is improved, and the transformer can normally operate. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of this application form a part of the application and serve to further provide a further understanding of the application, the illustrative embodiments of the application and the explanations thereof serve to explain the application without constituting an improper limitation of the application. In the drawings:

[0017] Figure 1 A schematic view of a waterproof device provided by an embodiment of the application is shown;

[0018] Figure 2 Another view of a waterproof device provided by an embodiment of the application is shown;

[0019] Figure 3 A partial schematic view of a waterproof device provided by an embodiment of the application is shown, wherein the waterproof device is covered on a secondary terminal box;

[0020] Figure 4 A schematic view of a second sealing element movably arranged on the bottom wall of the mounting shell is shown.

[0021] In the above drawings, the following reference signs are used:

[0022] 10. Install the housing; 11. Opening;

[0023] 20. Sealing assembly; 21. First seal; 211. First plate; 22. First fastener; 23. Second seal; 231. Second plate; 24. Third seal; 241. Third plate; 25. Second fastener;

[0024] 31. Rectangular frame; 32. Cable clearance opening. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1 to 4 As shown, this utility model embodiment provides a waterproof device that covers a secondary terminal box. The waterproof device includes a mounting housing 10 and a sealing assembly 20. The mounting housing 10 has an opening 11 on its rear side so that the mounting housing 10 covers the secondary terminal box through the opening 11. The sealing assembly 20 includes a first sealing member 21 and a first fastener 22. The first sealing member 21 is fixedly disposed on the inner surface of the top wall of the mounting housing 10. The first fastener 22 passes through the bottom wall of the mounting housing 10 and abuts against the secondary terminal box so that the first sealing member 21 abuts against the top wall of the secondary terminal box.

[0027] The waterproof device provided by the embodiment comprises a mounting shell 10 and a sealing assembly 20. The rear side of the mounting shell 10 is provided with an opening 11, so that the mounting shell 10 can be covered on the secondary terminal box through the opening 11. In order to avoid the problem that the secondary terminal box is easily corroded in rainy weather, the first sealing piece 21 of the sealing assembly 20 is fixedly arranged on the inner surface of the top wall of the mounting shell 10, and the first fastener 22 is arranged through the bottom wall of the mounting shell 10, so that the first fastener 22 is in abutting connection with the bottom wall of the secondary terminal box. In this way, an upward force can be applied to the secondary terminal box. Since the top wall of the mounting shell 10 is fixedly provided with the first sealing piece 21, the first sealing piece 21 is in sealing connection with the top wall of the secondary terminal box under the action of the upward force applied by the first fastener 22. The mounting shell 10 is fixedly covered on the secondary terminal box in the vertical direction. The sealing effect is realized under the action of the first sealing piece 21 and the first fastener 22, so that rainwater cannot enter the secondary terminal box through the gap between the top of the secondary terminal box and the door frame. The mounting shell 10 can be conveniently covered on the secondary terminal box, the installation method is convenient, the sealing effect of the waterproof device is improved, and the transformer can normally operate.

[0028] As shown in Figures 2 to 4 The sealing assembly 20 further comprises a second sealing piece 23, which is movably arranged on the bottom wall of the mounting shell 10 and abuts against the secondary terminal box through the first fastener 22. With the above structure, the second sealing piece 23 can move in the mounting shell 10, and the first fastener 22 can abut against the second sealing piece 23 by being arranged through the bottom wall of the mounting shell 10. When the first fastener 22 gradually extends into the mounting shell 10, the second sealing piece 23 can be moved in the mounting shell 10, so that the second sealing piece 23 can be in sealing connection with the bottom wall of the secondary terminal box under the action of the first fastener 22. In this way, rainwater cannot flow into the secondary terminal box through the bottom wall and the top wall of the secondary terminal box, and the sealing effect of the sealing assembly 20 is improved.

[0029] It should be noted that the first fastener 22 can be a fastening bolt, and a threaded hole is arranged on the mounting shell 10. The fastening bolt is in threaded connection with the threaded hole, so that the first fastener 22 is arranged through the mounting shell 10.

[0030] As shown in Figure 3As shown, the first sealing member 21 comprises a first plate body 211 and a first sealing gasket, the first plane of the first plate body 211 is connected with the top wall of the mounting shell 10, the first sealing gasket is arranged on the second plane opposite to the first plane of the first plate body 211, and the first sealing gasket is sealingly matched with the secondary terminal box. By connecting the first plane of the first plate body 211 with the top wall of the mounting shell 10 and connecting the second plane of the first plate body 211 with the second plate body 231, the first plate body 211 can be conveniently fixed on the mounting shell 10, and the first sealing gasket can be conveniently fixed on the first plate body 211 to sealingly match with the top wall of the secondary terminal box.

[0031] As shown in Figure 4 As shown, the second sealing member 23 comprises a second plate body 231 and a second sealing gasket, the first end of the second plate body 231 is movably arranged on the first side wall of the mounting shell 10, the second end of the second plate body 231 is movably arranged on the second side wall opposite to the first side wall of the mounting shell 10, the second sealing gasket is arranged on the upper surface of the second plate body 231, the first fastener 22 abuts against the lower surface of the second plate body 231 and drives the second plate body 231 to move towards the secondary terminal box, so that the second plate body 231 is sealingly matched with the secondary terminal box through the second sealing gasket. By movably arranging the second plate body 231 on the mounting shell 10, when the first fastener 22 abuts against the lower surface of the second plate body 231, the second plate body 231 is driven to move towards the secondary terminal box, so that the second sealing gasket on the upper surface of the second plate body 231 can be sealingly matched with the secondary terminal box, and the sealing effect of the second sealing member 23 is improved.

[0032] As shown in Figure 2 and Figure 4 As shown, the sealing assembly 20 further comprises a plurality of first fasteners 22, the plurality of first fasteners 22 are arranged at intervals along the length direction of the bottom wall of the mounting shell 10, and the plurality of first fasteners 22 are arranged through the bottom wall of the mounting shell 10 and abut against the second plate body 231. By arranging the plurality of first fasteners 22 at intervals along the length direction of the bottom wall of the mounting shell 10, the stress balance of the second plate body 231 can be ensured under the action of the plurality of first fasteners 22, so as to ensure the sealing effect of the second sealing gasket and avoid affecting the sealing effect of the second sealing member 23 due to uneven stress.

[0033] As shown in Figure 2 and Figure 4As shown, the sealing assembly 20 further comprises a third sealing member 24 and a second fastener 25, the third sealing member 24 is arranged in the mounting shell 10, the third sealing member 24 is movably arranged on the first side wall of the mounting shell 10, and the second fastener 25 is arranged through the mounting shell 10 and cooperates with the third sealing member 24 to control the movement of the third sealing member 24 relative to the mounting shell 10 in the horizontal direction and the sealing cooperation with the side wall of the secondary terminal box. With the above structure, the third sealing member 24 is movably arranged on the first side wall of the mounting shell 10, and the third sealing member 24 is moved under the action of the second fastener 25, so that the third sealing member 24 can be sealingly cooperated with the side wall of the secondary terminal box, and rainwater is prevented from entering the interior through the side wall of the secondary terminal box, and the sealing effect of the sealing assembly 20 is ensured.

[0034] It should be noted that the second fastener 25 can also be a fastening bolt, and a threaded hole is arranged on the mounting shell 10, and the fastening bolt is threadedly cooperated with the threaded hole, so that the second fastener 25 is arranged through the mounting shell 10.

[0035] As shown in Figure 3 The third sealing member 24 comprises a third plate body 241 and a third sealing gasket, the third plate body 241 is movably arranged on the mounting shell 10, the third sealing gasket is arranged on the first plane of the third plate body 241, the second fastener 25 abuts against the second plane of the third plate body 241 and drives the third plate body 241 to move towards the secondary terminal box, so that the third plate body 241 is sealingly cooperated with the secondary terminal box through the third sealing gasket, and a blocking structure is arranged between the third plate body 241 and the mounting shell 10 to prevent rainwater from entering the interior of the mounting shell 10. With the above structure, the third sealing gasket is arranged on the first plane of the third plate body 241, so that the second fastener 25 is arranged through the mounting shell 10 and is driven to move towards the secondary terminal box in a direction, so that the third sealing gasket on the third plate body 241 can be sealingly cooperated with the side wall of the secondary terminal box, and rainwater is prevented from entering the interior through the side wall of the secondary terminal box.

[0036] In the embodiment, the blocking structure comprises a telescopic plate, the telescopic plate comprises a first plate segment and a second plate segment, the first plate segment and the second plate segment both extend in the vertical direction, the first plate segment and the second plate segment are nested or stacked, the first side of the first plate segment is connected with the first side wall of the mounting shell 10, the first side of the second plate segment is slidably arranged on the second side of the first plate segment, and the second side of the second plate segment is connected with the third plate body 241. The inner side wall of part of the mounting shell 10, the telescopic plate and the inner surface of the third plate body 241 constitute a drainage channel. By nesting or stacking the first plate segment and the second plate segment, the first plate segment can move relative to the second plate segment, the first side of the first plate segment is connected with the first side wall of the mounting shell 10, the first side of the second plate segment is slidably arranged on the second side of the first plate segment, and the second side of the second plate segment is connected with the third plate body 241. When the second fastener drives the third plate body 241 to move towards the secondary terminal box, the second plate segment can move on the first plate segment, thereby improving the reliability of the movement of the third sealing element 24, and the inner side wall of part of the mounting shell 10, the telescopic plate and the outer surface of the third plate body 241 can constitute a drainage channel, so that rainwater cannot enter the mounting shell 10 through the gap between the mounting shell 10 and the third sealing element 24, thereby avoiding rainwater from entering the secondary terminal box and improving the sealing effect.

[0037] In the embodiment, the first side wall of the mounting shell 10 opposite to the second side wall is also provided with the third sealing element 24 and the second fastener 25, and the two third sealing elements 24 are arranged opposite to each other. By arranging the third sealing element 24 and the second fastener 25 on the first side wall and the second side wall of the mounting shell 10, the two third sealing elements 24 can simultaneously clamp the secondary terminal box and play a sealing role, thereby improving the sealing effect of the secondary terminal box.

[0038] It should be noted that the blocking structure is arranged between each third sealing element 24 and the mounting shell 10.

[0039] In the embodiment, the sealing assembly 20 comprises a plurality of second fasteners 25, and the plurality of second fasteners 25 are arranged on the side wall of the mounting shell 10. By arranging the plurality of second fasteners 25 along the length direction of the side wall of the mounting shell 10, the force balance of the third plate body 241 can be ensured under the action of the plurality of second fasteners 25, thereby ensuring the sealing effect of the third sealing element 24 and avoiding the influence of uneven force on the sealing effect of the third sealing element 24.

[0040] As Figure 1 and Figure 2As shown, the waterproof device further comprises a rectangular frame 31, which is arranged at the opening 11 of the mounting shell 10, and the first fastener 22 and the second fastener 25 are both arranged on the rectangular frame 31. With the above structure, by arranging the rectangular frame 31, the structural strength of the mounting shell 10 can be ensured, and the first fastener 22 and the second fastener 25 are both arranged on the rectangular frame 31, so that the positioning and installation of the first fastener 22 and the second fastener 25 can be ensured.

[0041] It should be noted that the side wall and the bottom wall of the rectangular frame 31 are provided with a plurality of threaded holes, the plurality of first fasteners 22 are threadedly connected with the plurality of threaded holes on the bottom wall of the rectangular frame 31, and the plurality of second fasteners 25 are threadedly connected with the plurality of threaded holes on the side wall of the rectangular frame 31.

[0042] As shown in Figure 1 and Figure 2 As shown, the lower portion of the mounting shell 10 is provided with a cable avoiding opening 32. By arranging the cable avoiding opening 32, the cable can be avoided, so that the substation can be normally operated.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0044] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be considered as part of the specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the example embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0045] In the description of the utility model, it is understood that the orientation words such as '' front, back, up, down, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship is usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the protection scope of the utility model;The orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0046] For the convenience of description, spatial relative terms such as '' above'', '' above'', '' upper surface'', '' upper '' and the like can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as '' above '' or '' above '' other devices or structures will be positioned '' below '' or '' below '' other devices or structures. Thus, the exemplary term '' above '' can include both '' above '' and '' below '' orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0047] In addition, it should be noted that the use of '' first'', '' second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore can not be understood as the limitation of the protection scope of the utility model.

[0048] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A waterproof device, wherein the waterproof device is mounted on a secondary terminal box, characterized in that, The waterproof device comprises: a mounting shell (10), a rear side of the mounting shell (10) having an opening (11) to allow the mounting shell (10) to be covered on the secondary terminal box through the opening (11); a sealing assembly (20) comprising a first sealing member (21) and a first fastener (22), the first sealing member (21) being fixedly arranged on an inner surface of a top wall of the mounting shell (10), the first fastener (22) being arranged through a bottom wall of the mounting shell (10), the first fastener (22) abutting against the secondary terminal box to allow the first sealing member (21) to abut and cooperate with a top wall of the secondary terminal box.

2. The waterproofing device of claim 1, wherein, The sealing assembly (20) further comprises a second sealing member (23), the second sealing member (23) being movably arranged on the bottom wall of the mounting shell (10), the first fastener (22) abutting the second sealing member (23) against the secondary terminal box.

3. The waterproof device according to claim 2, wherein the first sealing member (21) comprises a first plate body (211) and a first sealing gasket, a first plane of the first plate body (211) being connected with the top wall of the mounting shell (10), the first sealing gasket being arranged on a second plane opposite to the first plane of the first plate body (211), the first sealing gasket being in sealing cooperation with the secondary terminal box; the second sealing member (23) comprises a second plate body (231) and a second sealing gasket, a first end of the second plate body (231) being movably arranged on a first side wall of the mounting shell (10), a second end of the second plate body (231) being movably arranged on a second side wall opposite to the first side wall of the mounting shell (10), the second sealing gasket being arranged on an upper surface of the second plate body (231), the first fastener (22) abutting against a lower surface of the second plate body (231) and driving the second plate body (231) to move towards the secondary terminal box, so that the second plate body (231) is in sealing cooperation with the secondary terminal box through the second sealing gasket.

4. The waterproofing device of claim 3, wherein, The sealing assembly (20) further comprises a plurality of the first fasteners (22), the plurality of the first fasteners (22) being arranged at intervals along a length direction of the bottom wall of the mounting shell (10), the plurality of the first fasteners (22) being arranged through the bottom wall of the mounting shell (10) and abutting against the second plate body (231).

5. The waterproofing device of claim 3, wherein, The sealing assembly (20) further comprises a third sealing member (24) and a second fastener (25), the third sealing member (24) being arranged in the mounting shell (10), the third sealing member (24) being movably arranged on the first side wall of the mounting shell (10), the second fastener (25) being arranged through the mounting shell (10) and cooperating with the third sealing member (24) to control the third sealing member (24) to move along a horizontal direction relative to the mounting shell (10) and to be in sealing cooperation with a side wall of the secondary terminal box.

6. The waterproofing device of claim 5, wherein, The third sealing member (24) comprises a third plate body (241) movably arranged on the mounting shell (10) and a third sealing gasket arranged on a first plane of the third plate body (241), and the second fastener (25) abuts against a second plane of the third plate body (241) and drives the third plate body (241) to move towards the secondary terminal box, so that the third plate body (241) is sealingly matched with the secondary terminal box through the third sealing gasket, and a blocking structure for preventing rainwater from entering the mounting shell (10) is arranged between the third plate body (241) and the mounting shell (10).

7. The waterproofing device of claim 6, wherein, The blocking structure comprises a telescopic plate, the telescopic plate comprises a first plate segment and a second plate segment, the first plate segment and the second plate segment both extend in the vertical direction, the first plate segment and the second plate segment are arranged in a nested or stacked manner, a first side of the first plate segment is connected with a first side wall of the mounting shell (10), a first side of the second plate segment is slidably arranged on a second side of the first plate segment, and a second side of the second plate segment is connected with the third plate body (241), and an inner side wall of part of the mounting shell (10), the telescopic plate and an outer surface of the third plate body (241) constitute a drainage channel.

8. The waterproof device according to any one of claims 5 to 7, characterized in that The first side wall of the mounting shell (10) is further provided with the third sealing member (24) and the second fastener (25) on the opposite second side wall, and the two third sealing members (24) are oppositely arranged; The sealing assembly (20) comprises a plurality of second fasteners (25), and the plurality of second fasteners (25) are all arranged on the side wall of the mounting shell (10).

9. The waterproofing device of any one of claims 5 to 7, wherein, The waterproof device further comprises a rectangular frame (31) arranged at the opening (11) of the mounting shell (10), and the first fastener (22) and the second fastener (25) are both arranged on the rectangular frame (31).

10. The waterproofing device of claim 1, wherein, A cable avoiding opening (32) is arranged below the mounting shell (10).

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