Mounting structure of closed box top cover
By setting a support step and a clamping frame on the inner side of the top of the box to form an L-shaped gap, the problem of poor sealing of the top cover of the sealed box is solved, achieving better sealing effect and reliable connection, reducing costs and improving aesthetics.
Patent Information
- Application Number
- CN202520581815.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The installation structure of the traditional sealed box top cover has a single horizontal gap, resulting in poor sealing effect. In particular, after the sealing ring ages, water vapor seeps out, affecting the normal operation of the sealed box and the surrounding environment.
A support step is provided on the inner side of the top of the box, so that the top cover is placed on the support step through the sealing ring. The top cover is pressed against the box by the clamping frame and the mounting connector to form a vertical L-shaped gap. The clamping protrusions are provided on both sides of the clamping frame to enhance the sealing effect.
It effectively prevents moisture leakage, enhances the sealing effect, makes screw connections more reliable, reduces costs, and improves the overall aesthetics.
Smart Images

Figure CN223804140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sealed box, specifically to an installation structure for the top cover of the sealed box. Background Technology
[0002] like Figure 1 As shown, the installation structure of a traditional sealed enclosure top cover typically includes: an enclosure body 2, and a top cover 1, which is mounted on the top end face of the enclosure body 2 via a sealing ring 3 and secured to the enclosure body 2 with screws 5. Because the gap between the top end face of the enclosure body 2 and the top cover 1 is a horizontal, straight gap, although a sealing ring 3 is installed in this gap, in actual use, due to the single horizontal direction of the gap, a complete seal cannot be achieved. Especially after long-term use and the aging of the sealing ring 3, moisture in the enclosure body 2 will still seep out from this gap, affecting the normal operation of the entire sealed enclosure and also impacting the surrounding environment. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an installation structure for a sealed box top cover that changes the unidirectional direction of the gap.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an installation structure for a sealed box top cover, comprising: a box body and a top cover disposed on the box body, wherein the box body has a support step corresponding to the top cover on its inner side around the top, the top cover is placed on the support step by a sealing ring, the upper surface of the top cover is flush with the top end face of the box body, and the box body and the top cover are provided with a sealing ring for pressing the top cover tightly onto the box body.
[0005] As a preferred embodiment, in the installation structure of the sealed box top cover, the clamping frame is specifically configured as follows: the clamping frame has several mounting through holes along its circumference, and the box body has mounting threaded holes at its top corresponding to the mounting through holes on the clamping frame. Screws are selected and pass through the mounting through holes on the clamping frame and are set in the corresponding mounting threaded holes on the top end face of the box body.
[0006] As a preferred embodiment, in the installation structure of the sealed box top cover, the box body has an installation through hole at its top corresponding to the installation through hole on the clamping frame, and the box body has an installation connector on the back of its top, with the installation threaded hole on the installation connector.
[0007] As a preferred embodiment, in the mounting structure of the sealed box top cover, the mounting connector is a nut.
[0008] As a preferred scheme, in the mounting structure of the top cover of the closed box, the box body is a hollow structure, and a heat preservation layer is arranged in the inner cavity of the box body.
[0009] As a preferred scheme, in the mounting structure of the top cover of the closed box, the box body is a hollow structure, and a heat preservation layer is arranged in the inner cavity of the box body.
[0010] As a preferred scheme, in the mounting structure of the top cover of the closed box, the specific structure of the top cover comprises an annular framework, an upper cover plate arranged on the upper side of the annular framework and a lower cover plate arranged on the lower side of the annular framework.
[0011] As a preferred scheme, in the mounting structure of the top cover of the closed box, the outer box body plate of the box body is provided with a folded edge inwardly at the upper end of the outer box body plate.
[0012] As a preferred scheme, in the mounting structure of the top cover of the closed box, the folded edge extends into the pressing frame, so that the corresponding side of the pressing frame is pressed on the folded edge.
[0013] As a preferred scheme, in the mounting structure of the top cover of the closed box, the pressing frame is provided with pressing protrusions on the two sides respectively, so that the pressing protrusions on the two sides are pressed on the box body and the top cover respectively.
[0014] The utility model discloses beneficial effect is:
[0015] 1, the utility model discloses a setting rests step on the inside of the top end of the box body, places the top cover on the rests step, thereby forming two vertical L -shaped gaps, and the pressing frame for pressing the top cover is capped on the gap, greatly increases the sealing effect, can effectively prevent the moisture from the gap.
[0016] 2, the utility model discloses the mode of increasing installation connecting piece, make the connection between screw and box body more reliable firm.
[0017] 3, the utility model discloses setting pressing protrusion on the two sides of the pressing frame, so that the upper surface of the top cover and the top end face of the box body are not completely flush, also can press the top cover on the box body.
[0018] 4, the utility model discloses the lower cover plate completely covers the annular framework, since the lower cover plate is usually stainless steel plate, so the annular framework can adopt ordinary section material to reduce the cost, and can avoid the influence of the top cover corrosion to the normal use of the whole closed box.
[0019] 5, the utility model discloses setting the folded edge inwardly on the upper end of the outer box body plate of the box body, so that the installation of the outer box body plate is more convenient, and also makes the whole box body more beautiful.
[0020] 6. The utility model discloses a top cover of a closed box, which comprises a box body and a top cover arranged on the box body. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is the mounting structure schematic diagram of the top cover of the closed box in the background art.
[0022] Figure 1 in the drawing respectively, 1, top cover, 2, box, 3, seal ring, 5, screw.
[0023] Figure 2 is the mounting structure schematic diagram of the top cover of the closed box in the background art.
[0024] Figure 2 in the drawing respectively, 1, top cover, 10, annular framework, 11, upper cover plate, 12, lower cover plate, 18, top cover thermal cotton, 2, box, 20, outer box plate, 201, folding edge, 21, resting step, 28, top cover thermal cotton, 3, seal ring, 4, compression frame, 41, compression convex part, 5, screw, 6, mounting connecting piece. DETAILED DESCRIPTION
[0025] The utility model discloses a kind of mounting structures of top cover of closed box, which will be described in detail below in conjunction with the drawings.
[0026] As shown in Figure 2 the utility model discloses a kind of mounting structures of top cover of closed box, which comprises a box body and a top cover arranged on the box body.The box body is provided with corresponding resting step 21 on its top inner side four around, and the top cover 1 is placed on the resting step 21 by seal ring 3.The top cover 1 includes annular framework 10, upper cover plate 11 arranged on the upper side of annular framework 10 and lower cover plate 12 arranged on the lower side of annular framework 10.The upper surface of the top cover 1, i.e.the upper surface of the upper cover plate 11, is flush with the top end surface of the box body 2.A compression frame 4 is provided on the box body 2 and the top cover 1 for compressing the top cover 1 on the box body 2.The compression frame 4 is provided with a plurality of mounting through holes in the circumferential direction.The box body 2 is provided with mounting through holes corresponding to the mounting through holes of the compression frame 4 on its top end.The box body 2 is provided with a mounting connecting piece 6 on its top end back surface, and the mounting connecting piece 6 is provided with mounting screw holes corresponding to the mounting through holes of the box body 2.
[0027] In actual application, the mounting connector 6 can be replaced by a plurality of nuts, the pressing frame 4 is provided with pressing protrusions 41 on both sides, the upper end of the outer box plate 20 of the box 2 is inwardly provided with a folding edge 201 extending into the pressing frame 4, so that the pressing protrusions 41 on the corresponding side of the pressing frame 4 are pressed on the folding edge 201, and the pressing protrusions 41 on the other side are pressed on the top cover 1; the inner cavity of the box 2 is filled with box heat insulation cotton 28, and heat insulation plates can also be directly placed for convenient installation; the inner cavity of the top cover 1 is filled with top cover heat insulation cotton 18, and heat insulation plates can also be directly placed for convenient installation.
[0028] In conclusion, the above is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made in the shape, structure, features and spirit of the present application within the scope of the present application should be included in the scope of the present application.
Claims
1. A mounting structure of a closure box top cover, comprising: The utility model relates to a box and a top cover arranged on the box, characterized in that the box is provided with a resting step corresponding to the top cover around the inner side of the top of the box, the top cover is arranged on the resting step through a sealing ring, the upper surface of the top cover is flush with the top end surface of the box, and the box and the top cover are provided with a pressing frame for pressing the top cover on the box.
2. A mounting structure for a roof of an enclosed box according to claim 1, characterized in that: The specific arrangement of the pressing frame is that a plurality of mounting through holes are arranged on the pressing frame in the circumferential direction, the box is provided with mounting screw holes corresponding to the mounting through holes on the pressing frame at the top end thereof, and screws are selected to pass through the mounting through holes on the pressing frame and be arranged in the corresponding mounting screw holes on the top end surface of the box.
3. A mounting structure for a roof of an enclosed box according to claim 2, characterized in that: The specific arrangement of the mounting screw holes on the top end of the box is that the box is provided with mounting through holes corresponding to the mounting through holes on the pressing frame at the top end thereof, the box is provided with a mounting connecting piece on the back surface of the top end thereof, and the mounting screw holes are arranged on the mounting connecting piece.
4. A mounting structure for a roof of an enclosed box according to claim 3, characterized in that: The mounting connecting piece is a nut.
5. A mounting structure for a roof of an enclosed box according to claim 1, characterized in that: The box is a hollow structure, and a heat preservation layer is arranged in the inner cavity of the box.
6. A mounting structure for a roof of an enclosed box according to claim 1, characterized in that: The top cover is a hollow structure, and a heat preservation layer is arranged in the inner cavity of the top cover.
7. A mounting structure for a roof of an enclosed box according to claim 1, characterized in that: The specific structure of the top cover comprises an annular framework, an upper cover plate arranged on the upper side of the annular framework, and a lower cover plate arranged on the lower side of the annular framework.
8. A mounting structure for a roof of an enclosed box according to claim 1, characterized in that: The outer box plate of the box is provided with a folded edge inwardly at the upper end thereof.
9. A mounting structure for a roof of an enclosed box according to claim 8, characterized in that: The folded edge extends into the pressing frame, so that the corresponding side of the pressing frame is pressed on the folded edge.
10. A mounting structure for a roof of an enclosed box according to any one of claims 1 to 9, characterized in that: The pressing frame is provided with pressing protruding parts on the two sides thereof, so that the pressing protruding parts on the two sides are pressed on the box and the top cover respectively.