Sheet metal box

Abstract

The utility model relates to a metal plate box body which comprises a box body and a box cover, the box cover is detachably arranged on the box body, and a convex hull is arranged at the position, combined with the box body, of the box cover. And the sealing strip is arranged at the joint of the box cover and the box body, and the sealing strip is higher than the convex hull on the box cover. The convex hull is arranged on the box cover, the convex hull is arranged at the joint of the box body and the box cover, the sealing strip is arranged at the joint of the box body and the box cover, and the height of the sealing strip is larger than that of the convex hull, so that when the box cover is installed on the box body, a certain distance is kept between the upper surface of the box body and the lower surface of the box cover through the convex hull; therefore, the compression amount of the sealing strip is guaranteed, small gaps are prevented from being generated, waterproof failure is avoided, and meanwhile the deformation amount when the box cover is locked is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of box sealing methods, and in particular to a sheet metal box. Background Art

[0002] The existing sealing methods of IP67 sheet metal boxes are mainly as follows:

[0003] Solution 1: If Figure 1 For the box cover of solution 1 shown in the figure, stick the silicone strip (with adhesive backing) on ​​the box cover, fill the joint with sealant, and after the sealant dries, lock the box cover on the box body with bolts;

[0004] Solution 2: If Figure 2 The box cover of the scheme 2 shown is provided with an integrated silicone strip on the box cover, and then the joints are filled with sealant. After the sealant dries, the box cover is bolted to the box body;

[0005] Solution 3: Apply sealant to the junction of the box body and the box cover, and lock the box cover to the box body with bolts. After the sealant dries, scrape off the overflowed sealant.

[0006] However, in Scheme 1 and Scheme 2, relatively large manpower is required, especially in Scheme 1; in Scheme 1, glue needs to be dispensed at the joints, which poses a risk of failure; in Schemes 1 and 2, the silicone strip is attached to the box cover. Due to the compressibility of the silicone strip, small gaps are easily generated during the locking with the box body, resulting in waterproof failure; the use of an integrated silicone strip in Scheme 2 will result in material waste in the middle part of the silicone strip; in Scheme 1 and Scheme 2, the silicone strip will be deformed after multiple disassemblies, and it is easy to fail to meet the IP67 sealing requirement; Scheme 3 will make disassembly and maintenance difficult, and it is easy to cause deformation of the box cover during disassembly, rendering the product unusable. Utility Model Content

[0007] In view of the above problems, the present application provides a sheet metal box to solve the problem of waterproof failure caused by the compressibility of the silicone strip and the locking of the box, which is solved by attaching silicone strips in the existing sheet metal box sealing method.

[0008] To achieve the above object, the inventor provides a sheet metal box, comprising:

[0009] Box, and

[0010] A box cover, the box cover is detachably arranged on the box body, and a convex bump is arranged at the position where the box cover is combined with the box body;

[0011] A sealing strip is arranged at the junction of the box cover and the box body, and the sealing strip is higher than the bulge on the box cover.

[0012] Different from the prior art, the above technical solution is to provide a convex hump on the box cover, and the convex hump is provided at the position where the box body is combined with the box cover. At the same time, a sealing strip is provided at the joint of the box body and the box cover. The height of the sealing strip is greater than the height of the convex hump, so that when the box cover is installed on the box body, the convex hump allows the upper surface of the box body and the lower surface of the box cover to maintain a certain distance, so as to ensure the compression of the sealing strip, avoid the generation of small gaps, avoid waterproof failure, and also reduce the deformation of the box cover when it is locked.

[0013] In some embodiments, in order to make the seal more reliable, the sealing strip includes a first sealing strip and a second sealing strip;

[0014] The first sealing strip and the second sealing strip are respectively arranged on two sides of the convex bulge of the box cover.

[0015] In some embodiments, in order to ensure the sealing performance under high temperature conditions, the sealing strip is a silicone sealing strip.

[0016] In some embodiments, in order to ensure that the sealing strip can be attached to the box cover, the sealing strip is reinforced on the box cover by an adhesive.

[0017] In some embodiments, in order to ensure that the box cover can be disassembled multiple times and avoid the situation where repeated disassembly of the box cover may cause sealing failure, the convex bulge is multiple and the convex bulge is arranged at intervals around the box cover;

[0018] The box cover is provided with bolt openings between adjacent convex humps.

[0019] In some embodiments, in order to prevent the sealing strip from being exposed to the sun and prevent the sealing strip from failing, folded edges are provided on the four sides of the box cover.

[0020] In some embodiments, in order to ensure the compression amount of the sealing strip and make the sealing performance more reliable, the height of the convex bump is 1.3 mm and the height of the sealing strip is 2.05 mm.

[0021] In some embodiments, in order to reduce manpower input and improve glue application accuracy, the sealing strip is applied to the box cover by means of a glue strip.

[0022] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0024] In the drawings of the specification:

[0025] Figure 1 A schematic diagram of the structure of the box cover of solution 1 described in the background technology;

[0026] Figure 2 A schematic diagram of the structure of the box cover of solution 2 described in the background technology;

[0027] Figure 3 A structural schematic diagram of a sheet metal box according to a specific implementation method;

[0028] Figure 4 A structural schematic diagram of the box cover described in the specific implementation method;

[0029] Figure 5 It is another structural schematic diagram of the sheet metal box described in the specific implementation method.

[0030] The reference numerals in the above drawings are described as follows:

[0031] 110. Cabinet,

[0032] 120. Box cover,

[0033] 121. Convex hull,

[0034] 122. Bolt mouth,

[0035] 123. Folding edge,

[0036] 131. The first sealing strip,

[0037] 132. Second sealing strip,

[0038] 140. Flange bolts. DETAILED DESCRIPTION

[0039] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0041] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0042] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0043] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0044] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0045] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0046] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] See also Figure 3-4 This embodiment provides a sheet metal box, including:

[0049] The housing 110, and

[0050] A box cover 120, wherein the box cover 120 is detachably disposed on the box body 110, and a convex bump 121 is disposed at a position where the box cover 120 is combined with the box body 110;

[0051] A sealing strip is provided at the junction of the box cover 120 and the box body 110 , and the sealing strip is higher than the convex bump 121 on the box cover 120 .

[0052] By arranging a convex hump 121 on the box cover 120, the convex hump 121 is arranged at the position on the box body 110 where the box cover 120 is combined, and at the same time a sealing strip is arranged at the joint of the box body 110 and the box cover 120, and the height of the sealing strip is greater than the height of the convex hump 121, when the box cover 120 is installed on the box body 110, the convex hump 121 allows the upper surface of the box body 110 and the lower surface of the box cover 120 to maintain a certain distance, so as to ensure the compression amount of the sealing strip, avoid the generation of small gaps, avoid waterproof failure, and also reduce the deformation amount of the box cover 120 when it is locked.

[0053] The convex bump 121 is formed by stamping on the box cover 120 , and an external force is applied to the four sides of the box cover 120 by a press machine, so that the four sides of the box cover 120 are deformed to form the convex bump 121 , and the processing technology is simple.

[0054] See also Figure 3 In some embodiments, the sealing strip includes a first sealing strip 131 and a second sealing strip 132;

[0055] The first sealing strip 131 and the second sealing strip 132 are respectively disposed on two sides of the convex bulge 121 of the box cover 120 .

[0056] By setting two sealing strips: a first sealing strip 131 and a second sealing strip 132, which are respectively set on both sides of the convex 121 of the box cover 120, the positions on both sides of the convex 121 can be sealed, ensuring the sealing of the sheet metal box when the box cover 120 is installed on the box body 110, making the sealing performance more reliable.

[0057] In some embodiments, the sealing strip is a silicone sealing strip. The sealing strip is made of silicone sealing strip. The sealing strip made of silicone material has superior performance and can withstand high temperatures, ensuring the sealing performance under high temperature conditions. The silicone sealing strip has a transparent and smooth appearance, is soft and elastic, non-toxic and tasteless. It has good elasticity (Shore 35-75 degrees), high and low temperature resistance (-80℃-280℃), and is not easy to age, deform, and resistant to slight acids and alkalis. In addition, it also has good performance in ozone resistance, solubility resistance, and electrical insulation. It is the first choice for seals in the chemical, pharmaceutical, food, electronics, and mechanical industries. In other embodiments, the sealing strip can also be made of other materials, such as EPDM sealing strips, chloroprene sealing strips, nitrile rubber sealing strips, polyurethane rubber sealing strips, etc.

[0058] In some embodiments, the sealing strip is reinforced by an adhesive and arranged on the box cover 120. In order to ensure that the sealing strip can be attached to the box cover 120, the sealing strip is reinforced by an adhesive so that the sealing strip can be attached to the box cover 120.

[0059] See also Figure 3-5 In some embodiments, there are multiple convex bumps 121, and the convex bumps 121 are arranged at intervals around the box cover 120;

[0060] The box cover 120 is provided with bolt openings 122 between adjacent convex bumps 121 .

[0061] By providing a plurality of convex bumps 121 around the box cover 120, and providing bolt openings 122 between adjacent convex bumps 121, bolts can pass through the bolt openings 122 to lock the box cover 120 on the box body 110, wherein the bolts are flange bolts 140, which can enhance the sealing effect and prevent water from entering through the bolt openings 122. In other embodiments, a circle of convex bumps 121 can be formed by punching around the box cover 120, and a plurality of bolt openings 122 are provided at intervals at the bottom of the convex bumps 121, so that the flange bolts 140 can be used to lock the box cover 120 on the box body 110.

[0062] See also Figure 3 In some embodiments, the four sides of the box cover 120 are further provided with folded edges 123.

[0063] By providing folded edges 123 on the four sides of the box cover 120, when the box cover 120 is locked on the box body 110, the folded edges 123 on the four sides of the box cover 120 can cover the joint between the box cover 120 and the box body 110, that is, cover the sealing strip between the box cover 120 and the box body 110. The folded edge 123 design can prevent the sealing strip from being exposed to the sun, thereby preventing the sealing strip from failing.

[0064] In some embodiments, the height of the convex bump 121 is 1.3 mm, and the height of the sealing strip is 2.05 mm.

[0065] By setting the height of the convex hump 121 to 1.3 mm and the height of the sealing strip to 2.05 (the heights of the first sealing strip 131 and the second sealing strip 132 are both 2.05 mm), the compression amount of the sealing strip is about 0.75, which can ensure the compression amount of the sealing strip while ensuring a good sealing effect between the box body 110 and the box cover 120. In other embodiments, the heights of the first sealing strip 131, the second sealing strip 132 and the convex hump 121 can be set to other sizes to ensure that the heights of the first sealing strip 131 and the second sealing strip 132 are higher than the height of the convex hump 121.

[0066] In some embodiments, the sealing strip is applied to the box cover 120 by a glue strip. By using a glue machine to apply the sealing strip to the box cover 120 and then performing high-temperature curing, the input of manpower can be reduced, and the glue application accuracy can be improved at the same time to ensure the overall sealing of the sheet metal box. The glue machine is an automated device that specifically controls and drips and applies the coating to the surface of the product. It uses compressed air to send the coating into the glue supply hose, and then through program control, the coating is dripped or applied according to a pre-set path. The glue machine can achieve accurate dotting, injection, coating, and dripping of the coating to the precise position of each product, and can be used to achieve dotting, drawing lines, circular or arc shapes. In this application, the coating is a sealing strip. When the glue machine applies the sealing strip to the box cover, the sealing strip is a fluid. After the sealing strip is applied to the box cover, the sealing strip is subjected to high-temperature curing so that a sealing strip is formed on the box cover.

[0067] In some embodiments, a sealing method for a sheet metal box is provided to achieve a waterproof rating of IP67. The structure of the sheet metal box is mainly composed of a box body 110, a box cover 120, a first sealing strip 131 and a second sealing strip 132. The box cover 120 has folded edges 123 on all sides, and 14 convex bumps 121 are punched out on the box cover 120. The convex bumps 121 are of the same height. The first sealing strip 131 and the second sealing strip 132 are applied to the box cover 120 using a glue machine, and then cured at high temperature. The box cover 120 is locked to the box body 110 with flange bolts 140. The junction of the box body 110 and the box cover 120 is sealed by the first sealing strip 131 and the second sealing strip 132 to ensure that the product waterproof rating reaches IP67. IP is the abbreviation of Ingress Protection Rating (or International Protection code), which defines the protection capability of an interface against liquid and solid particles. IP is followed by two digits. The first is the solid protection level, ranging from 0-6, which indicates protection from large particles to dust; the second is the liquid protection level, ranging from 0-8, which indicates protection from vertical water drops to underwater pressure. The larger the number, the stronger the ability. IP67 level can protect against dust inhalation (overall protection against contact, protection against dust penetration) and short-term immersion (anti-immersion).

[0068] The material of the first sealing strip 131 and the second sealing strip 132 of this design is silicone with superior performance. To ensure that the sealing strip can be attached to the box cover 120, an adhesive is used to reinforce the first sealing strip 131 and the second sealing strip 132. A convex bump 121 is stamped on the box cover 120, and the convex bump 121 is shorter than the height of the sealing strip. When locking, the convex bump 121 allows the upper surface of the box body 110 and the lower plane of the box cover 120 to maintain a certain distance to ensure the compression of the sealing strip, and also reduce the deformation of the box cover 120 when locking. After calculation and testing, the height of the convex bump 121 is 1.3mm, and the height of the sealing strip is 2.05mm.

[0069] The sealing method of the sheet metal box of the present application has the following advantages:

[0070] Advantage 1: The 120 gluing of the box cover is replaced by a machine, which can reduce the manpower input and improve the gluing accuracy to ensure the overall sealing.

[0071] Advantage 2: The box cover 120 adopts a convex bump 121 design to ensure the compression amount of the sealing strip, and the sealing performance is more reliable.

[0072] Advantage 3: The box cover 120 can be disassembled multiple times, which is convenient for subsequent maintenance and can also avoid the sealing failure that may occur due to repeated disassembly of the box cover 120.

[0073] Advantage 4: High temperature resistant silicone material is used as the sealing strip to ensure the sealing performance under high temperature conditions.

[0074] Advantage 5: Two sealing strips are used, making the seal more reliable.

[0075] Advantage 6: The bolt opening 122 is sealed by the flange nut, thereby enhancing the sealing effect and preventing water from entering through the bolt opening 122 .

[0076] Advantage 7: The box cover 120 adopts the folding edge 123 design, which can prevent the sealant from being exposed to the sun and prevent the sealing strip from failing.

[0077] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A sheet metal box, characterized in that: include: Box, and A box cover, the box cover is detachably arranged on the box body, and a convex bump is arranged at the position where the box cover is combined with the box body; A sealing strip is arranged at the junction of the box cover and the box body, and the sealing strip is higher than the bulge on the box cover.

2. The sheet metal box according to claim 1, characterized in that: The sealing strip comprises a first sealing strip and a second sealing strip; The first sealing strip and the second sealing strip are respectively arranged on two sides of the convex bulge of the box cover.

3. The sheet metal box according to claim 1, characterized in that: The sealing strip is a silicone sealing strip.

4. The sheet metal box according to claim 1, characterized in that: The sealing strip is reinforced on the box cover by an adhesive.

5. The sheet metal box according to claim 1, characterized in that: There are multiple convex humps, which are arranged at intervals around the box cover; The box cover is provided with bolt openings between adjacent convex humps.

6. The sheet metal box according to claim 1, characterized in that: The four sides of the box cover are also provided with folding edges.

7. The sheet metal box according to claim 1, characterized in that: The height of the convex bulge is 1.3 mm, and the height of the sealing strip is 2.05 mm.

8. The sheet metal box according to claim 1, characterized in that: The sealing strip is punched onto the box cover by means of a glue strip.

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