Four-side-formed arc-shaped high-strength top cover structure

Abstract

The utility model relates to the technical field of electric appliance shells, in particular to a four-side-formed arc-shaped high-strength top cover structure which is integrally formed by a top cover, a first flange and a second flange, the first flange and the second flange are added, the first flange is of a concentric-square-shaped structure, and the second flange is of a concentric-square-shaped structure. A first arc and a second arc are respectively arranged between the first flange and the top cover and between the first flange and the second flange, and third arcs are arranged at four corners of the first flange, so that the first arc, the second arc and the third arcs are connected to form a four-side formed top cover structure, and the overall structure and the connection strength are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliance housing technology, and in particular to a high-strength top cover structure with a four-sided formed arc shape. Background Technology

[0002] Currently, most electrical appliances are designed with a square box-like outer shell, such as side-mounted washing machines and dryers, and household refrigerators. The outer shell includes a ring frame and a top cover that covers the top of the ring frame. However, traditional top covers are usually designed as rectangular sheet structures. When the top cover is directly placed on the ring frame, it is either fixed by welding or by screws, which can easily result in low strength of the top cover. Utility Model Content

[0003] The purpose of this utility model is to provide a high-strength top cover structure with a four-sided arc shape, which addresses the shortcomings of the existing technology and aims to solve the technical problem that the traditional top cover design is a rectangular sheet structure, resulting in low strength of the top cover.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A four-sided arc-shaped high-strength top cover structure includes a top cover, a first flange connected to the top cover, and a second flange connected to the first flange. The first flange extends along the thickness direction of the top cover and is located at the four edges of the top cover to form a U-shaped structure. The top cover and the second flange are parallel. There is a first arc and a second arc between the first flange and the top cover and the second flange, respectively. There is a third arc at the four corners of the first flange to connect the first arc, the second arc, and the third arc. The top cover, the first flange, and the second flange are integrally formed.

[0006] The present invention is further configured such that: one side of the first flange is provided with at least two locking holes for snap-fitting.

[0007] The present invention is further configured such that: the four corners of the second flange are provided with process notches, and the process notches correspond to the third arc.

[0008] The present invention is further configured such that: the two symmetrical sides of the second flange are provided with snap-fit ​​pieces, and the snap-fit ​​pieces are provided with protrusions.

[0009] The present invention is further provided with positioning holes on the two symmetrical sides of the second flange.

[0010] The present invention is further configured such that: at least two notches are provided on the side between the two symmetrical sides of the second flange.

[0011] Compared with the prior art, the beneficial effects of this application are as follows: This utility model is integrally formed by the top cover, the first flange and the second flange, and the addition of the first flange and the second flange, the first flange is a loop-shaped structure, and there are a first arc and a second arc between the first flange and the top cover and the second flange respectively, and there are third arcs at the four corners of the first flange, so that the first arc, the second arc and the third arc are connected to form a top cover structure with four sides, thereby enhancing the overall structure and connection strength. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the snap ring structure in this utility model.

[0016] The details of the reference numerals used in the above figures are as follows:

[0017] 1-Top cover;

[0018] 2-First flange, 21-Locking hole;

[0019] 3-Second flange, 31-Process notch, 32-Snap-fit ​​piece, 33-Protrusion, 34-Positioning hole, 35-Notch;

[0020] 4-First arc, 5-Second arc, 6-Third arc, 7-Snap ring. Detailed Implementation

[0021] In the description of this application, the term "at least two" refers to two or more (including two). Technical terms such as "first," "second," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary / secondary relationship of the indicated technical features. Terms such as "installation," "connection," and "linking" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] In the description of this application, the technical terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0023] In order to better understand the above-mentioned objectives, technical solutions and advantages of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings, so as to understand in detail how to solve the problems raised in the background art.

[0024] like Figure 1 and Figure 2 As shown, a four-sided arc-shaped high-strength top cover 1 structure includes a top cover 1, a first flange 2 connected to the top cover 1, and a second flange 3 connected to the first flange 2. The first flange 2 extends along the thickness direction of the top cover 1 and is located at the four edges of the top cover 1 to form a U-shaped structure. The top cover 1 and the second flange 3 are parallel. There is a first arc 4 and a second arc 5 between the first flange 2 and the top cover 1 and the second flange 3, respectively. There is a third arc 6 at the four corners of the first flange 2 to connect the first arc 4, the second arc 5 and the third arc 6. The top cover 1, the first flange 2 and the second flange 3 are integrally formed.

[0025] Through the above scheme, the top cover 1, the first flange 2, and the second flange 3 are integrally formed, which increases the first flange 2 and the second flange 3. The first flange 2 has a first arc 4 and a second arc 5 between it and the top cover 1 and the second flange 3 respectively. The four corners of the first flange 2 have a third arc 6, so that the structure of the top cover 1 is a four-sided formed structure with multiple arcs, thereby enhancing the overall strength. At the same time, when the top cover 1 is in use, the second flange 3 is fixed after being attached to the top surface of the ring frame, which increases the contact area and strengthens the load-bearing strength of the top cover 1. Furthermore, the setting of the first arc 4, the second arc 5, and the third arc 6 can also avoid the formation of sharp corners at the sequential connection of the top cover 1, the first flange 2, and the second flange 3, preventing scratches, improving safety, and ensuring the overall aesthetics.

[0026] In this embodiment, the top cover 1, the first flange 2, and the second flange 3 are integrally formed by stamping or hydroforming, which can improve the waterproof effect of the top cover 1. The thickness of the top cover 1, the first flange 2, and the second flange 3 is 1mm, and the structure of the top cover 1 can be made of galvanized sheet metal to improve corrosion resistance, decorative properties, and wear resistance. The top cover 1 is positioned on top of the annular frame. The first flange 2 and the second flange 3 can be formed by bending the rectangular top cover 1. In actual processing, the second flange 3 is first stamped, and then the first flange 2 is formed. The extension direction of the first flange 2 is towards the annular frame from which the top cover 1 is positioned. The second flange 3 is located around the perimeter of the first flange 2. The extension direction of the second flange 3 is towards the center from the perimeter of the top cover 1, thus making the top cover 1 and the second flange 3 parallel and enhancing the overall strength of the top cover 1 structure. The first arc 4, the second arc 5 and the third arc 6 are all rounded corners to strengthen the structure and connection strength of the top cover 1, the first flange 2 and the second flange 3. Since the top cover 1 can cover the annular frame, the top surface of the annular frame is provided with a planar segment corresponding to the second flange 3, so that the second flange 3 and the planar segment fit together, thereby increasing the contact area between the top cover 1 and the annular frame and strengthening the load-bearing strength of the top cover 1 structure.

[0027] As an improved implementation, one side of the first flange 2 is provided with at least two locking holes 21 for snap-fitting. Specifically, the first flange 2 is perpendicular to the top cover 1 and the second flange 3 respectively. This side of the first flange 2 has two locking holes 21, and buckles can be installed on the two locking holes 21. In actual installation, the annular frame is also provided with through holes corresponding to the locking holes 21. At this time, by inserting the buckles 6 into the locking holes 21 and the through holes respectively, the top cover 1 and the annular frame are tightened together, which is conducive to the quick disassembly and assembly of the top cover 1. After the top cover 1 and the annular frame are precisely fitted, the bearing area of ​​the second flange 3 is guaranteed, and the load-bearing strength of the top cover 1 is improved.

[0028] As one specific implementation of the improvement, the second flange 3 is provided with process notches 31 at its four corners, which correspond to the third arc 6. Specifically, the process notches 31 divide the second flange 3 into four segments, thereby avoiding material extrusion during the forming of the second flange 3. They also prevent the second flange 3 from being deformed by mutual compression when the first flange 2 is subjected to pressure. Furthermore, the third arc 6 increases the yield strength of the four corners of the first flange 2. The cooperation between the process notches 31 and the third arc 6 allows the first flange 2 to recover after elastic deformation, further improving the overall strength of the top cover 1 structure.

[0029] As an improved implementation, the second flange 3 is provided with snap-fit ​​pieces 32 on its two symmetrical sides, and the snap-fit ​​pieces 32 are provided with protrusions 33. Specifically, the two symmetrical sides of the second flange 3 are the left and right sides of one side of the first flange 2. The snap-fit ​​pieces 32 are positioned towards the buckle 6. The snap-fit ​​pieces 32 can be configured as a vertical section, a planar section, and an inclined section connected in sequence. The vertical section is connected to the second flange 3. The protrusions 33 are located on the planar section and are hemispherical. The inclined section is bent downwards. When the top cover 1 and the annular frame are actually installed, the annular frame is also provided with mounting holes and snap-fit ​​holes corresponding to the snap-fit ​​pieces 32. At this time, the top cover 1 is attached to the top surface of the annular frame and pushed towards the buckle 6, so that the snap-fit ​​pieces 32 enter the mounting holes and the protrusions 33 are embedded in the snap-fit ​​holes, realizing the rapid installation of the top cover 1 and the annular frame, ensuring the stable connection between the two, ensuring the accurate force-bearing area of ​​the second flange 3, and improving the load-bearing strength of the top cover 1 structure.

[0030] As one specific implementation of the improvement, the two symmetrical sides of the second flange 3 are also provided with positioning holes 34. Specifically, the positioning holes 34 are arc-shaped. When the top cover 1 and the annular frame are actually installed, the annular block is provided with a protruding structure at the corresponding positioning hole 34. When the snap-fit ​​piece 32 is snapped into place, the protruding structure is also embedded in the positioning hole 34 at the same time, which can prevent the top cover 1 from shifting, improve the connection stability between the top cover 1 and the annular frame, ensure the accuracy of the force-bearing area of ​​the second flange 3, and improve the load-bearing strength of the top cover 1 structure.

[0031] As one specific implementation of the improvement, the side edge between the two symmetrical sides of the second flange 3 is provided with at least two notches 35. Specifically, the side edge of the second flange 3 with notches 35 is symmetrical to the locking hole 21, and there are three notches 35. A spring clip 7 with specific elasticity is engaged with each of the three notches (e.g., a retaining spring clip 7). Figure 3 As shown), during the actual installation of the top cover 1 and the annular frame, the annular frame is also provided with a corresponding through hole 35. At this time, after the top cover 1 and the annular frame are tightly fitted together, the snap ring 7 is inserted into the connected notch 35 and the through hole to achieve mutual clamping of the top cover 1 and the annular frame, which improves the connection stability of the top cover 1 and the annular frame, and ensures the accuracy of the force-bearing area of ​​the second flange 3, thereby improving the load-bearing strength of the top cover 1 structure.

[0032] It is worth noting that the top cover 1 in this embodiment is used in a dryer. In most households, the top space of the dryer is often used to place various sundries or as a platform for clothes washed in the washing machine. The high-strength top cover 1 can support the sundries or clothes. At the same time, the top cover 1 can also be used in kitchen appliances such as microwave ovens and electric ovens, as well as refrigeration appliances such as household refrigerators and cold drink machines.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A four-sided, arc-shaped, high-strength top cover structure, characterized in that, The device includes a top cover, a first flange connected to the top cover, and a second flange connected to the first flange. The first flange extends along the thickness direction of the top cover and is disposed around the perimeter of the top cover to form a U-shaped structure. The top cover and the second flange are parallel. The first flange has a first arc and a second arc between itself and the top cover and the second flange, respectively. The first flange has a third arc at its four corners to connect the first arc, the second arc, and the third arc. The top cover, the first flange, and the second flange are integrally formed.

2. The high-strength, four-sided formed arc-shaped top cover structure according to claim 1, characterized in that, The first flange has at least two locking holes on one side for snap-fitting.

3. The high-strength, four-sided formed arc-shaped top cover structure according to claim 1, characterized in that, The second flange has process notches at its four corners, and the process notches correspond to the third arc.

4. The high-strength, four-sided formed arc-shaped top cover structure according to claim 3, characterized in that, The second flange has two symmetrical sides with snap-fit ​​tabs, and the snap-fit ​​tabs have protrusions.

5. A four-sided formed arc-shaped high-strength top cover structure according to claim 4, characterized in that, The two symmetrical sides of the second flange are also provided with positioning holes.

6. The high-strength, four-sided formed arc-shaped top cover structure according to claim 5, characterized in that, The second flange has at least two notches on the side between the two symmetrical sides.

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