Assembling mechanism for fixing upper shell and lower shell without screws

Abstract

The utility model relates to a screw-free upper and lower shell fixing assembling mechanism which comprises an upper shell and a lower shell, the edges of the two sides of the upper shell respectively extend downwards to form skirt edges, each skirt edge is provided with more than two clamping hooks, the clamping hooks further extend downwards from the skirt edges, the lower shell is provided with two vertical side walls, the vertical side walls are provided with more than two clamping buckle edge strips, and the clamping buckle edge strips are connected with the upper shell and the lower shell. The buckle edge strips extend by a preset length in the length direction of the vertical side wall, are bent inwards from the top edge of the vertical side wall and then extend by a preset height upwards, the preset height is equal to or smaller than the downward extending height of the skirt edge, the buckle edge strips are combined to the inner side of the skirt edge, a clamping opening is defined between the buckle edge strips, and the clamping hook is buckled to the clamping opening. At least the bottom end of the clamping hook is combined with the inner wall face below the clamping opening. According to the mechanism, the clamping hook and the clamping buckle edge strip are mutually buckled and assembled, structural space is not occupied, assembling and disassembling are convenient, the structure is compact and firm after buckling, space is saved, product competitiveness is improved, assembling time is saved, and good experience is provided for a user.

Description

Technical Field

[0001] The utility model relates to the technical field of server power supply structures, in particular to an assembly mechanism for fixing upper and lower shells without screws. Background Art

[0002] With the continuous development of the Internet, online services have become the primary sales method for all walks of life, which requires more and more servers. Server power supplies also bring massive demands, such as digital power products such as big data computing power supplies. In the power supply structure, the commonly used shell assembly mechanism includes upper and lower shells, and the upper and lower shells are usually fixed by screws. This screw fastening structure requires space for the locking screws to avoid, and requires the user to screw, which brings inconvenience to the user. Utility Model Content

[0003] In view of this, a screwless upper and lower shell assembly mechanism is provided, which has the advantages of screwless buckle fixing, convenient assembly and disassembly, compact structure and reliable structure.

[0004] A screwless upper and lower shell assembly mechanism comprises an upper shell and a lower shell, wherein the edges of both sides of the upper shell are respectively extended downward with skirts, each skirt is provided with more than two hooks, and each hook is further extended downward from the skirt, and the lower shell has two vertical side walls, each vertical side wall is provided with more than two buckle edge strips, each buckle edge strip extends a predetermined length along the length direction of the vertical side wall, and each buckle edge strip is formed by bending inwardly from the top edge of the vertical side wall and then extending upward to a predetermined height, and the predetermined height is equal to or less than the downward extension height of the skirt, the buckle edge strip is combined with the inner side of the skirt, and a bayonet is defined between at least two of the buckle edge strips, the hook is buckled in the bayonet, and the hook is combined with the inner wall surface below the bayonet at least at the bottom end.

[0005] Specifically, the vertical side wall of the lower shell is provided with an elastic sheet, and the upper shell is provided with a sinking stopper at a position corresponding to the elastic sheet, and the elastic sheet is snap-fitted with the sinking stopper.

[0006] Specifically, the sum of the lengths of all the buckle side strips and the hooks is equal to or slightly less than the length of the entire vertical side wall or side edge.

[0007] Specifically, the adjacent snap edge strips and hooks are staggered in sequence, and the hooks and skirts are correspondingly staggered and combined on the inner side of the vertical side wall and the outer side of the snap edge strip, and each hook is bent inward from the bottom edge of the skirt and then extends downward.

[0008] Preferably, the length of the buckle side strip is greater than the length of the hook, and the length of the buckle side strip is more than three times the length of the hook.

[0009] In some specific embodiments, the skirt has a protrusion or a convex strip extending downward near at least one side of the hook, the protrusion or the convex strip is engaged with the bayonet, and the protrusion or the convex strip extends downward to a height of about 1-1.5 mm.

[0010] Furthermore, the upper shell is L-shaped, and has an end side wall connected between the two skirts. The lower shell includes a bottom wall and two vertical side walls. The edge of the lower shell between the two vertical side walls is open, and the end side wall covers one of the openings. The end side wall is provided with a heat dissipation grille.

[0011] Furthermore, the spring sheet is arranged at one end of the vertical side wall, the sinking stopper is arranged on the main surface shell of the upper shell, and the sinking stopper is integrally formed with the upper shell by punching a hole.

[0012] In some preferred embodiments, the spring sheet is arranged at one end of the vertical side wall and extends parallel to the length direction of the vertical side wall, the sinking stop block is arranged on the main surface shell of the upper shell, the sinking stop block is integrally formed with the upper shell by punching a hole, a side wedge block is erected upward from the inner edge of the spring sheet, the side wedge block of the spring sheet slides over the pressing portion and is buckled on the sinking stop block, the sinking stop block includes a sunken pressing portion, and the sinking stop block is formed with a buckle hole after stamping, and the top of the side wedge block of the spring sheet is stuck in the buckle hole.

[0013] In some specific embodiments, the downward extension height of the skirt is 3-5mm, the predetermined height of the buckle edge strip extending upward is 3-5mm, the downward extension length of the hook is 2-4mm, the skirt extends along the entire edge of the corresponding side edge of the upper shell, the sum of the lengths of each buckle edge strip and each bayonet is consistent with the length of the skirt, the width of the hook is 3-5cm, and the width of the bayonet is consistent with the width of the hook.

[0014] In the above-mentioned screwless upper and lower shell assembly mechanism, hooks and buckle side strips are hooked and assembled with each other, which not only does not occupy structural space, but is overall coordinated, and is convenient for installation and disassembly. Through the mutual buckling of multiple hooks, buckle side strips and bayonet ports, the structure is compact and reliable. This solves the limitation of internal space, improves product competitiveness, saves assembly time, and provides a good experience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an upper and lower shell assembly mechanism without screws provided by an embodiment of the utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional exploded structure of the upper and lower shell assembly mechanism without screws.

[0017] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the upper shell in the screwless upper and lower shell assembly mechanism.

[0018] Figure 4 yes Figure 1 An enlarged structural diagram of the assembly location of the spring piece and the sinking stop block in the screwless upper and lower shell assembly mechanism.

[0019] In the attached figure:

[0020] 10. Upper shell; 12. Skirt; 13. Hook; 132. Outer stopper; 15. End side wall; 151. Heat dissipation grille; 17. Sinking stopper; 171. Pressing part; 172. Buckle hole; 18. Bump or convex strip; 20. Lower shell; 21. Vertical side wall; 22. Buckle edge strip; 23. Bayonet; 24. Bottom wall; 25. Open mouth; 28. Press buckle; 31. Spring piece; 311. Side wedge block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , showing a screwless upper and lower shell assembly mechanism provided by an embodiment of the utility model, comprising an upper shell 10 and a lower shell 20, wherein the edges of both sides of the upper shell 10 extend downward with skirts 12 respectively, and each skirt 12 is provided with more than two hooks 13, and each hook 13 extends further downward from the skirt 12, and the lower shell 20 has two vertical side walls 21, and each vertical side wall 21 is provided with more than two buckle edge strips 22, and each buckle edge strip 22 extends a predetermined length along the length direction of the vertical side wall 21, and each buckle edge strip 22 is bent inwardly from the top edge of the vertical side wall 21 and then extends upward by a predetermined height, and the predetermined height is equal to or less than the downward extension height of the skirt 12, and the buckle edge strip 22 is combined with the inner side of the skirt 12, and a bayonet 23 is defined between at least two of the buckle edge strips 22, and the hook 13 is buckled in the bayonet 23, and the hook 13 is combined with the inner wall surface below the bayonet 23 at least at the bottom.

[0023] Specifically, the vertical side wall 21 of the lower shell 20 is provided with an elastic sheet 31, and the upper shell 10 is provided with a sinking stopper 17 at a position corresponding to the elastic sheet 31. The elastic sheet 31 is snap-fitted with the sinking stopper 17 to limit the horizontal movement of the upper shell 10 and the lower shell 20. The sinking stopper 17 is stamped from the upper shell.

[0024] Preferably, the sum of the lengths of all the buckle side strips 22 and the hooks 13 is equal to or slightly less than the length of the entire vertical side wall 21 or the side edge, thereby providing sufficient length to support the upper and lower shells to be firmly assembled together.

[0025] Specifically, the adjacent snap edge strips 22 and the hooks 13 are staggered in sequence, and the hooks 13 and the skirt 12 are correspondingly staggered and combined on the inner side surface of the vertical side wall 21 and the outer side surface of the snap edge strip 22. In a specific embodiment, the hook 13 is combined on the inner side surface of the vertical side wall 21. The skirt 12 is combined on the outer side surfaces of two adjacent snap edge strips 22. Preferably, each hook 13 is bent inward from the bottom edge of the skirt 12 and then extends downward.

[0026] Preferably, the length of the buckle edge strip 22 is greater than the length of the hook 13, and the length of the buckle edge strip 22 is more than three times the length of the hook 13. Therefore, the skirt 12 is mainly combined with each of the buckle edge strips 22, and the hook 13 is combined with the inner side surface of the vertical side wall 21 to provide a reverse combination force, and then cooperates with the buckling effect of the spring sheet 31 and the sinking stopper 17, so that the upper and lower shells are stably assembled.

[0027] like Figure 2 As shown, in some specific embodiments, the skirt 12 has a protrusion or convex strip 18 extending downward at at least one side of the hook 13, and the protrusion or convex strip 18 is stuck on the inner side or outer side of the vertical side wall 21. The protrusion or convex strip extends downward to a height of about 1-1.5 mm. The protrusion or convex strip 18 extends directly from the surface of the skirt 12 without bending inward or outward. The protrusion or convex strip 18 is slightly shorter than the hook 13, and the protrusion or convex strip 18 basically fills the vacancy of the bayonet 23. Therefore, the total length of the hook 13 and the protrusion or convex strip 18 at the same location is basically consistent with the horizontal length of the bayonet.

[0028] Furthermore, the upper shell 10 is L-shaped, and has an end side wall 15 connected between the two skirts 12. The lower shell 20 includes a bottom wall 24 and two vertical side walls 21. The edge of the lower shell 20 between the two vertical side walls 21 is an opening 25. The end side wall 15 covers one of the openings 25, and the end side wall 15 is provided with a heat dissipation grille 151.

[0029] like Figure 1 and 4As shown, further, the spring piece 31 is arranged at one end of the vertical side wall 21, extending parallel to the length direction of the side wall, and the main surface of the spring piece 31 extends horizontally. The sinking block 17 is arranged on the main surface shell of the upper shell 10, and the sinking block 17 is integrally formed on the upper shell 10 by punching out a hole. Specifically, a side wedge block 311 stands up from the inner side edge of the spring piece 31, and the sinking block 17 includes a sinking pressing portion 171. The sinking block 17 is formed with a buckle hole 172 after punching. The side wedge block 311 of the spring piece 31 slides over the pressing portion 172 and then buckles on the sinking block 17 to limit the horizontal movement of the upper and lower shells. The upper surface of the spring piece 31 is attached to the inner surface of the pressing portion 171. Specifically, the top of the side wedge block 311 of the spring piece 31 is stuck in the buckle hole 172. The vertical side wall 21 is provided with a press buckle 28 at a position corresponding to the buckle hole 172 or the spring sheet 31. Figure 3 As shown, a hook 13 close to the buckle 28 has an outer stopper 132 extending outwardly toward the buckle 28 , and the outer stopper 132 presses on the buckle 28 , thereby limiting the vertical looseness of the upper and lower shells and fixing the upper and lower shells vertically.

[0030] Preferably, the downward extension height of the skirt 12 is 3-5 mm, the predetermined height of the buckle edge strip 22 extending upward is 3-5 mm, and the length of the hook 13 extending downward is 2-4 mm. More preferably, the skirt 12 extends along the entire edge of the corresponding side edge of the upper shell 10, the sum of the lengths of each buckle edge strip 22 and each bayonet 23 is consistent with the length of the skirt 12, the width of the hook 13 is 3-5 cm, and the width of the bayonet 23 corresponds to the width of the hook 13.

[0031] It can be seen that in the above-mentioned screwless upper and lower shell assembly mechanism, the hook 13 and the buckle side strip 22 are hooked and assembled with each other, which does not occupy the structural space, is overall coordinated, and is convenient for installation and disassembly. The multiple hooks 13, the buckle side strips 22 and the bayonet 23 are buckled with each other, and the structure is compact and reliable. This solves the limitation of the internal space, improves the competitiveness of the product, saves assembly time, and provides a good experience for users.

[0032] It should be noted that the present invention is not limited to the above-mentioned embodiments. According to the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made according to the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A screwless upper and lower shell assembly mechanism, comprising an upper shell and a lower shell, characterized in that: The edges of both sides of the upper shell each extend downward with skirts, each skirt is provided with more than two hooks, and each hook extends further downward from the skirt; the lower shell has two vertical side walls, each vertical side wall is provided with more than two buckle edge strips, each buckle edge strip extends a predetermined length along the length direction of the vertical side wall, and each buckle edge strip is formed by bending inwardly from the top edge of the vertical side wall and then extending upward to a predetermined height, and the predetermined height is equal to or less than the downward extension height of the skirt; the buckle edge strip is combined with the inner side of the skirt, and a bayonet is defined between at least two of the buckle edge strips, and the hook is buckled in the bayonet, and the hook is combined with the inner wall surface below the bayonet at least at the end.

2. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The vertical side wall of the lower shell is provided with an elastic sheet, and the upper shell is provided with a sinking stopper at a position corresponding to the elastic sheet, and the elastic sheet is buckled and combined with the sinking stopper.

3. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The sum of the lengths of all the buckle side strips and the hooks is equal to or slightly less than the length of the entire vertical side wall or side edge.

4. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The adjacent snap edge strips and hooks are staggered in sequence, and the hooks and skirts are correspondingly staggered and combined on the inner side of the vertical side wall and the outer side of the snap edge strip. Each hook is bent inward from the bottom edge of the skirt and then extends downward.

5. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The length of the buckle side strip is greater than the length of the hook, and the length of the buckle side strip is more than three times the length of the hook.

6. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The skirt has a convex point or a convex strip extending downwardly at a position close to at least one side of the hook, and the convex point or the convex strip is clamped in the bayonet, and the convex point or the convex strip extends downwardly to a height of about 1-1.5 mm.

7. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The upper shell is L-shaped and has an end side wall connected between the two skirts. The lower shell includes a bottom wall and two vertical side walls. The edge of the lower shell between the two vertical side walls is open, and the end side wall covers one of the openings. The end side wall is provided with a heat dissipation grille.

8. The screwless upper and lower shell assembly mechanism according to claim 2, characterized in that: The spring sheet is arranged at one end of the vertical side wall, the sinking stopper is arranged on the main surface shell of the upper shell, and the sinking stopper is integrally formed with the upper shell by punching out a hole.

9. The screwless upper and lower shell assembly mechanism according to claim 2, characterized in that: The spring sheet is arranged at one end of the vertical side wall and extends parallel to the length direction of the vertical side wall. The sinking stop block is arranged on the main surface shell of the upper shell. The sinking stop block is integrally formed with the upper shell by punching a hole. A side wedge block stands up from the inner edge of the spring sheet. The side wedge block of the spring sheet slides over the pressing part and is buckled on the sinking stop block. The sinking stop block includes a sunken pressing part. The sinking stop block is formed with a buckle hole after stamping, and the top of the side wedge block of the spring sheet is stuck in the buckle hole.

10. The screwless upper and lower shell assembly mechanism according to claim 1, characterized in that: The downward extension height of the skirt is 0.5-1.5cm, the predetermined height of the buckle edge strip extending upward is 0.5-1.5cm, the length of the hook extending downward is 1-2cm, the skirt extends along the entire edge of the corresponding side edge of the upper shell, the sum of the lengths of each buckle edge strip and each bayonet is consistent with the length of the skirt, the width of the hook is 3-5cm, and the width of the bayonet is consistent with the width of the hook.

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