Clamping hook fixing structure for sheet metal shell

Abstract

The utility model provides a clamping hook fixing structure for a sheet metal shell. The clamping hook fixing structure comprises a fixing assembly and a locking assembly. The fixing assembly comprises a clamping hook and a mounting groove; the whole clamping hook is flat and comprises a limiting part and a connecting part which are connected with each other, and the width of the limiting part is larger than that of the connecting part; the connecting part is detachably connected with a side plate of the main body; the limiting part extends out of the main body backwards; the mounting groove is formed in the back plate and corresponds to the clamping hook, the mounting groove comprises an inserting groove and a fixing groove which are communicated, and the inserting groove is located above the fixing groove; the locking assembly comprises a locking screw, a locking nut and a locking hole; the locking nut is fixed to the top of the back plate, and the locking hole is formed in the fixed edge. During use, the back plate covers the main body, and the limiting part of the clamping hook penetrates through the insertion groove; the back plate is pushed upwards, so that the top of the back plate abuts against the fixing edge, the clamping hooks enter the fixing grooves, and the back plate is fixed; the locking nuts and the locking holes are correspondingly arranged, and the locking screws penetrate through the locking holes and are screwed into the locking nuts to lock the back plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical structure connection technical field especially relates to a kind of clasp fixing structure for sheet metal shell. BACKGROUND

[0002] In the process of mechanical manufacturing and equipment assembly, the fixation of sheet metal shell is a common and important link. The traditional sheet metal shell fixing method mostly adopts simple screw connection or buckle connection. Simple screw connection has the problems of low installation and disassembly efficiency, and repeated disassembly and assembly can easily cause thread slippage. Large-sized sheet metal shell also has the problems of screw alignment difficulty, screw surface treatment damage, etc. Although ordinary buckle connection is convenient to install, it has poor fixing stability. When subjected to external force impact or vibration, the sheet metal shell is easy to loosen or even fall off, which is difficult to meet the use requirements of high-precision and high-stability equipment. Therefore, there is an urgent need for a sheet metal shell fixing structure combining the advantages of convenient installation and reliable fixation. SUMMARY

[0003] The utility model aims to provide a kind of clasp fixing structure for sheet metal shell, which is designed by combining clasp and screw, realizes the quick installation, flexible adjustment and stable fixation of sheet metal shell, and solves the problems of low installation efficiency and poor fixation in the prior art.

[0004] The clasp fixing structure for sheet metal shell provided by the utility model embodiment includes a main body and a back plate closing the rear side of the main body. The top surface of the main body extends rearward to form a fixing edge. The clasp fixing structure includes a fixing assembly and a locking assembly. The fixing assembly includes a clasp and a mounting slot. The clasp is flat overall and includes a limiting portion and a connecting portion connected to each other. The width of the limiting portion is greater than that of the connecting portion. The connecting portion is detachably connected to the side plate of the main body, and the limiting portion extends rearward beyond the main body. The mounting slot is provided on the back plate and corresponds to the clasp. The mounting slot includes a communication insertion slot and a fixing slot. The width of the insertion slot is greater than that of the fixing slot, and the insertion slot is located above the fixing slot. The locking assembly includes a locking screw, a locking nut and a locking hole. The locking nut is fixed to the top of the back plate, and the locking hole is provided on the fixing edge. In use, the back plate is closed to the rear side of the main body, so that the limiting portion of the clasp passes through the insertion slot. The back plate is pushed upward, so that the top of the back plate abuts against the fixing edge. At this time, the clasp enters the fixing slot, and the limiting portion prevents the back plate from being separated, thereby fixing the back plate. The locking nut and the locking hole are correspondingly arranged, the locking screw passes through the locking hole and is screwed into the locking nut to lock the back plate to the main body.

[0005] Preferably, the clamping hooks are multiple, and the multiple clamping hooks are symmetrically and spacedly arranged on the inner walls of the two side plates of the main body; the number of the mounting grooves is consistent with the number of the clamping hooks, and the mounting grooves are arranged in one-to-one correspondence with the clamping hooks.

[0006] Preferably, the connecting portion is provided with a connecting hole, and the clamping hook is fixed to the inner wall of the side plate of the main body through a connecting screw passing through the connecting hole.

[0007] Preferably, the connecting hole is a long waist type hole, and the length of the limiting portion extending to the rear side of the main body is adjusted by adjusting the fixed position of the connecting hole and the connecting screw, so as to adjust the tightness of the fixing of the back plate.

[0008] Preferably, the insertion groove and the fixing groove are smoothly connected through a slope; the height of the insertion groove is greater than the width of the limiting portion, so as to allow the limiting portion to pass through the insertion groove.

[0009] Preferably, the width of the insertion groove is greater than the thickness of the clamping hook, and the width of the fixing groove is equal to the thickness of the clamping hook.

[0010] Preferably, the end of the limiting portion away from the connecting portion extends downward to form a right trapezoidal limiting portion.

[0011] Preferably, the locking nut is a pull rivet nut, and the locking nut is pre-riveted on the top of the back plate.

[0012] Preferably, the locking hole is a counterbore.

[0013] Preferably, the material of the clamping hook is metal.

[0014] Compared with the prior art, the technical scheme of the embodiment of the utility model has at least the following beneficial effects:

[0015] The clamping hook fixing structure for the sheet metal shell provided by the utility model realizes rapid positioning and preliminary fixing of the sheet metal shell, greatly shortens the installation time and improves the assembly efficiency compared with the traditional full screw connection mode; the design of the long waist type hole of the clamping hook can adjust the installation position and the fixed tightness of the clamping hook, effectively compensates manufacturing and installation errors, and enhances the adaptability of the structure to different sheet metal shell sizes and installation environments; the double fixing mode of the preliminary fixing of the clamping hook and the combined locking of the locking screw and the locking nut ensures that the sheet metal shell can still maintain stable connection under the working conditions of external force impact, vibration and the like, avoids loosening and falling off, and improves the reliability and safety of the overall operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1Is the mounting schematic drawing of the hook fixing structure for the sheet metal shell in the embodiment of the utility model;

[0017] Figure 2 Is the schematic drawing of the hook fixing structure for the sheet metal shell installed in the sheet metal shell in the embodiment of the utility model;

[0018] Figure 3 Is Figure 2 Partial enlarged view;

[0019] Figure 4 Is the schematic drawing of the fixing assembly when the hook fixing structure for the sheet metal shell is installed in the sheet metal shell in the embodiment of the utility model;

[0020] Figure 5 Is the schematic drawing of the locking assembly when the hook fixing structure for the sheet metal shell is installed in the sheet metal shell in the embodiment of the utility model.

[0021] Mark explanation:

[0022] 1, main body; 11, fixed edge; 2, back plate; 3, hook; 31, limiting part; 32, connecting part; 33, connecting hole; 4, installation groove; 41, insertion groove; 42, fixed groove; 5, locking screw; 6, locking nut; 7, locking hole; 8, connecting screw. Specific implementation

[0023] In order to make the purpose, features and beneficial effects of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in combination with the drawings. It can be understood that the following specific implementation is only used to explain the utility model, and is not limited to the utility model. In the drawings, the same or similar reference signs may be used to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of prior art elements, features, effects and the like may be omitted.

[0024] The utility model aims at providing a kind of hook fixing structure for sheet metal shell, by hook and screw combination design, realize the quick installation, flexible adjustment and stable fixation of sheet metal shell, solve the problem of low installation efficiency, not firm in prior art.

[0025] Figure 1 Is the mounting schematic drawing of the hook fixing structure for the sheet metal shell in the embodiment of the utility model; Figure 2 Is the schematic drawing of the hook fixing structure for the sheet metal shell installed in the sheet metal shell in the embodiment of the utility model; Figure 3 Is Figure 2 Partial enlarged view; Figure 4 Is the schematic drawing of the fixing assembly when the hook fixing structure for the sheet metal shell is installed in the sheet metal shell in the embodiment of the utility model;Figure 5 is the locking assembly schematic view when the hook fixing structure for sheet metal shell in the utility model is installed in the sheet metal shell.

[0026] Now refer to Figures 1 to 5 The utility model discloses a kind of hook fixing structure for sheet metal shell, sheet metal shell includes main body 1 and the back plate 2 of closed main body 1 rear side, the top surface of main body 1 extends to form fixed edge 11 to rear side, hook fixing structure includes fixed component and locking assembly;Fixed component includes hook 3 and installation slot 4;Hook 3 is flat as a whole, including limit portion 31 and connecting portion 32 connected with each other, the width of limit portion 31 is greater than the width of connecting portion 32;Connecting portion 32 is detachably connected with the side plate of main body 1, limit portion 31 extends main body 1 to rear side;Installation slot 4 is set to back plate 2 and is correspondingly set with hook 3, installation slot 4 includes insertion slot 41 and fixed slot 42, the width of insertion slot 41 is greater than the width of fixed slot 42, insertion slot 41 is located above fixed slot 42;Locking assembly includes locking screw 5, locking nut 6 and locking hole 7;Locking nut 6 is fixed to the top of back plate 2, locking hole 7 is set to fixed edge 11;When using, back plate 2 is covered to the rear side of main body 1, so that the limit portion 31 of hook 3 passes through insertion slot 41;Push back plate 2 upwards, so that the top of back plate 2 is in abutment with fixed edge 11, at this time, hook 3 enters fixed slot 42, limit portion 31 prevents back plate 2 from separating, and back plate 2 is fixed;Locking nut 6 is correspondingly set with locking hole 7, locking screw 5 is screwed into locking nut 6 through locking hole 7, and back plate 2 is locked to main body 1.

[0027] In some embodiments, the plurality of hooks 3 are symmetrically and spacedly installed on the inner walls of the two side plates of the main body 1.

[0028] In some embodiments, the connecting portion 32 is provided with a connecting hole 33, and the hook 3 is fixed to the inner wall of the side plate of the main body 1 by a connecting screw 8 passing through the connecting hole 33.

[0029] In some embodiments, the connecting hole 33 is a long waist type hole, and the length of the limit portion 31 extending to the rear side of the main body 1 is adjusted by adjusting the fixed position of the connecting hole 33 and the connecting screw 8, so as to adjust the tightness of the back plate 2.

[0030] In some embodiments, the insertion slot 41 and the fixed slot 42 are connected through a slope; the height of the insertion slot 41 is greater than the width of the limit portion 31, so as to allow the limit portion 31 to pass through the insertion slot 41.

[0031] In some embodiments, the width of the insertion slot 41 is greater than the thickness of the hook 3, and the width of the fixed slot 42 is equal to the thickness of the hook 3.

[0032] In some embodiments, the limiting portion 31 extends downward from one end of the connecting portion 32 to form a right trapezoidal shape.

[0033] In some embodiments, the locking nut 6 is a pull rivet nut, and the locking nut 6 is pre-riveted to the top of the back plate 2.

[0034] In some embodiments, the locking hole 7 is a counterbore.

[0035] In some embodiments, the material of the clamping hook 3 is metal.

[0036] In the actual assembly process, the specific steps are as follows:

[0037] S1: the locking nut 6 is pre-installed in the corresponding position of the back plate 2;

[0038] S2: the clamping hook 3 is installed inside the installation main body 1 through the connecting screw 8, and the clamping hook 3 is adjusted in position and tightened according to the actual demand by using the long waist type structure of the clamping hook 3 connecting hole 33 and the connecting screw 8;

[0039] S3: the back plate 2 is covered to the rear side of the main body 1, so that the limiting portion 31 of the clamping hook 3 passes through the insertion slot 41; the back plate 2 is pushed upward, so that the top of the back plate 2 abuts against the fixed edge 11, at this time, the clamping hook 3 enters the fixed slot 42, and the limiting portion 31 prevents the back plate 2 from being separated, thereby preliminarily fixing the back plate 2; at this time, the locking nut 6 is correspondingly arranged with the locking hole 7;

[0040] S4: if it is necessary to adjust the tightness of the back plate 2, the back plate 2 is separated from the main body 1, the connecting screw 8 of the clamping hook 3 is loosened, the length of the limiting portion 31 extending out of the main body 1 to the rear side is adjusted by moving the fixed position of the clamping hook 3 connecting hole 33, and then the step 3 is repeated;

[0041] S5: the locking screw 5 is screwed into the locking nut 6 through the locking hole 7 to lock the back plate 2 to the main body 1, and the installation is completed.

[0042] In summary, the clamping hook fixing structure for the sheet metal shell provided by the utility model realizes the rapid positioning and preliminary fixing of the sheet metal shell, greatly shortens the installation time and improves the assembly efficiency compared with the traditional full screw connection mode; the design of the long waist type hole of the clamping hook 3 enables the installation position and the tightness of the clamping hook 3 to be adjustable, can effectively compensate for the manufacturing and installation errors, and enhances the adaptability of the structure to different sheet metal shell sizes and installation environments; the double fixing mode of the preliminary fixing of the clamping hook 3 and the combined locking of the locking screw 5 and the locking nut 6 ensures that the sheet metal shell can still maintain stable connection under the working conditions of external force impact, vibration and the like, avoids loosening and falling off, and improves the reliability and safety of the overall operation of the equipment.

[0043] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even if a single embodiment is described in relation to a particular feature. The examples of features provided in the present disclosure are intended to be illustrative, not limiting, unless otherwise specified. In a specific implementation, one or more technical features of a dependent claim can be combined with technical features of an independent claim, and technical features from a corresponding independent claim can be combined by any appropriate means, not just by the specific combinations listed in the claims, if technically feasible.

[0044] Although the present disclosure has been described as above, the present disclosure is not limited thereto. Any person skilled in the art can make various modifications and changes without departing from the spirit and scope of the present disclosure, and therefore the protection scope of the present disclosure should be subject to the scope defined by the claims.

Claims

1. A hook fixing structure for a sheet metal case including a main body and a back plate closing a rear side of the main body, a top surface of the main body being extended toward the rear side to form a fixing edge, characterized in that, The hook fixing structure comprises a fixing assembly and a locking assembly; the fixing assembly comprises a hook and a mounting slot; the hook is flat as a whole and comprises a limiting portion and a connecting portion connected with each other, the limiting portion has a width greater than that of the connecting portion; the connecting portion is detachably connected with the side plate of the main body, and the limiting portion extends to the rear side of the main body; the mounting slot is arranged on the back plate and corresponds to the hook, and comprises a communicating insertion slot and a fixing slot, the width of the insertion slot is greater than that of the fixing slot, and the insertion slot is located above the fixing slot; the locking assembly comprises a locking screw, a locking nut and a locking hole; the locking nut is fixed to the top of the back plate, and the locking hole is arranged on the fixing edge; in use, the back plate is covered on the rear side of the main body, so that the limiting portion of the hook passes through the insertion slot; the back plate is pushed upward, so that the top of the back plate abuts against the fixing edge, at this time, the hook enters the fixing slot, and the limiting portion prevents the back plate from being separated, thereby fixing the back plate; the locking nut is arranged correspondingly to the locking hole, and the locking screw is screwed into the locking nut through the locking hole to lock the back plate to the main body.

2. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The hooks are a plurality of hooks symmetrically and spacedly arranged on the inner walls of the two side plates of the main body; the number of the mounting slots is consistent with that of the hooks, and the mounting slots are arranged correspondingly to the hooks.

3. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The connecting portion is provided with a connecting hole, and the hook is fixed to the inner wall of the side plate of the main body through a connecting screw passing through the connecting hole.

4. The hook fixing structure for a sheet metal case according to claim 3, characterized in that, The connecting hole is a long waist hole, and the length of the limiting portion extending to the rear side of the main body is adjusted by adjusting the fixing position of the connecting hole and the connecting screw, so as to adjust the tightness of the back plate.

5. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The insertion slot and the fixing slot are smoothly connected through a slope; the height of the insertion slot is greater than the width of the limiting portion, so as to allow the limiting portion to pass through the insertion slot.

6. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The width of the insertion slot is greater than the thickness of the hook, and the width of the fixing slot is equal to the thickness of the hook.

7. The hook fixing structure for a sheet metal case according to claim 1, characterized by The end of the limiting portion away from the connecting portion extends downward to form a right trapezoidal limiting portion.

8. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The locking nut is a pull rivet nut, and the locking nut is pre-riveted to the top of the back plate.

9. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The locking hole is a counterbore.

10. The hook fixing structure for a sheet metal case according to claim 1, characterized in that, The material of the hook is metal.

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