Box cover fixing structure

Abstract

The utility model discloses a box cover fixing structure which comprises a box body assembly, a cover plate, a built-in fixing frame assembly and a shifting stud. The cover plate is installed on the box body assembly through the built-in type fixing frame assembly, the shifting stud and the built-in type fixing frame assembly are fixedly installed, rotation of the built-in type fixing frame assembly is achieved by pushing the shifting stud up and down, and then closing and opening of the cover plate are achieved. Compared with the prior art, through the arrangement of the built-in fixing frame assembly, the rapid opening and closing of the cover plate relative to the box body can be realized without the help of external tools. And the appearance structure is more attractive and compact.

Description

Technical Field

[0001] This utility model belongs to the field of electronic equipment, and in particular to a box cover fixing structure. Background Technology

[0002] Currently, product design requirements are becoming increasingly aesthetically pleasing and compact. For installations in environments with external protective enclosures or indoor settings, the speed of disassembly and assembly of movable covers and similar components of the equipment must be as fast as possible.

[0003] The conventional installation structure of the cover plate and the box body is as follows: the most common method is to use bolts to fasten the cover plate around its circumference, and to use a socket tool to achieve the operation of disassembly and assembly; or to use a latch, with the upper and lower sections installed on the cover plate and the box body respectively, and to open or close or lock by moving the latch.

[0004] Using a socket tool to remove the bolts to open the cover, or loosening the latches to open the cover, are two common structural forms that can both satisfy the closing and opening of the cover. However, the bolt fixing requires the use of a socket tool, which is time-consuming, and frequent disassembly can easily damage the threads, leading to the bolts seizing. The latch fixing method protrudes around the side of the box, which is not aesthetically pleasing or compact. Utility Model Content

[0005] The purpose of this utility model is to provide a box lid fixing structure that does not require bolts, buckles, or auxiliary tools such as sleeves; through the built-in elastic locking structure, it achieves a beautiful, reliable, and convenient operation of opening and closing the lid.

[0006] The technical solution to achieve the purpose of this utility model is as follows: a box cover fixing structure, including a box body assembly, a cover plate, an internal fixing frame assembly, and a toggle stud; the cover plate is installed on the box body assembly through the internal fixing frame assembly, and the toggle stud is fixedly installed with the internal fixing frame assembly. By pushing the toggle stud up and down, the internal fixing frame assembly is rotated, thereby achieving the closing and opening of the cover plate.

[0007] Compared with the prior art, the significant advantages of this invention are: Through the built-in fixing bracket assembly, the cover can be quickly opened and closed relative to the box without the aid of external tools. Furthermore, the appearance and structure are more aesthetically pleasing and compact. Attached Figure Description

[0008] Figure 1 Overall 3D view;

[0009] Figure 2 Installation diagram of built-in mounting bracket assembly 3 Figure 1 ;

[0010] Figure 3Installation diagram of built-in mounting bracket assembly 3 Figure 2 ;

[0011] Figure 4 Box 1-1 3D view;

[0012] Figure 5 Enlarged view of the 3D area of ​​box 1-1;

[0013] Figure 6 3D view of cover plate 2;

[0014] Figure 7 Schematic diagram of the horizontal position of the built-in mounting bracket assembly 3;

[0015] Figure 8 A schematic diagram of the internal mounting bracket assembly 3 in its flipped-up state;

[0016] Figure 9 Exploded view of concealed mounting bracket assembly 3;

[0017] Figure 10 Schematic diagram of corresponding through-hole installation;

[0018] Figure 11 Activity L banner 3-7 3D diagram;

[0019] Figure 12 3-1 3D view of the right fixed bracket;

[0020] Figure 13 3-3 3D view of the movable positioning column;

[0021] Figure 14 3D view of spring top post 3-4;

[0022] Figure 15 A schematic diagram showing the insertion and locking of the built-in fixing bracket assembly 3 into the housing 1-1;

[0023] Figure 16 A schematic diagram of the internal fixing bracket assembly 3 flipping up with the box body 1-1 (compressed spring state).

[0024] Figure 17 A schematic diagram of the internal fixing bracket assembly 3 flipping up with the box body 1-1 (spring released). Detailed Implementation

[0025] The terminology used in this utility model is for illustrative purposes only and is not intended to limit the scope of the utility model. The following description, in conjunction with the appendix, further clarifies this utility model. Figure 1-17 The following is a detailed description of some embodiments of this utility model.

[0026] The aforementioned box lid fixing structure includes a box body assembly 1, a cover plate 2, an internal fixing bracket assembly 3, a moving stud 4, and an M4*12 countersunk screw 5;

[0027] Box assembly 1: It is made of aluminum alloy material and is assembled by cutting, bending, welding and bolting the cover plate. The main function of box assembly 1 is to form its respective compartment and install the corresponding electrical and structural components.

[0028] Box 1-1 mainly provides the installation position of the internal fixing bracket assembly 3 and the closing function with the cover plate 2; Box 1-1 is provided with box round hole 1-1-1, box countersunk hole 1-1-2, and box waist groove hole 1-1-3;

[0029] The box body has two rows of round holes 1-1-1. The upper round hole 1-1-1 is used to limit the insertion of the insertion post 3-4-1 when the cover plate 2 is opened. The lower round hole 1-1-1 is used to pass through the insertion post 3-4-1 and then cooperate with the cover plate round hole 2-1 on the cover plate 2. The reverse side of the round hole 1-1-1 is chamfered to facilitate better cooperation between the taper of the front end of the spring top post 3-4 and the round hole 1-1-1.

[0030] The countersunk hole 1-1-2 in the housing is for passing through the M4*12 countersunk screw 5;

[0031] The waist groove hole 1-1-3 of the box body is used to pass through the tug stud 4 and provide a movable position for the tug stud 4 to move up and down.

[0032] Cover plate 2: Made of aluminum alloy, formed by cutting, bending and welding the edges; its main function is to provide a tight seal for the box assembly 1.

[0033] The cover plate 2 is provided with a cover plate round hole 2-1 and a cover plate clearance groove hole 2-2;

[0034] The cover plate's round hole 2-1 is used to cooperate with the insertion post 3-4-1 to fix and limit the cover plate 2; the cover plate's clearance groove hole 2-2 is used to provide movement space for the moving stud 4.

[0035] The built-in fixing bracket assembly 3 mainly includes: right fixing bracket 3-1, left fixing bracket 3-2, movable positioning column 3-3, spring top column 3-4, spring 3-5, fixed crossbeam 3-6, movable L-shaped crossbar 3-7, rotating shaft 3-8, and nut washer 3-9.

[0036] Right fixed bracket 3-1: a bent part made of stainless steel, manufactured through processes such as cutting, bending, and press-fitting nuts; one side can be threaded to the rotating shaft 3-8, and the other side can be fastened to the box body 1-1 by countersunk screws 5; the right fixed bracket 3-1 is equipped with a single press-fitting nut 3-1-1 and a double press-fitting nut 3-1-2;

[0037] Left fixed bracket 3-2: a bent part made of stainless steel through processes such as cutting, bending, and riveting nuts; one side can be connected to the rotating shaft 3-8, and the other side can be fastened to the box body 1-1 by countersunk screws 5; it is a symmetrical part of the right fixed bracket 3-1.

[0038] Movable positioning post 3-3: Made of stainless steel round bar, machined; the movable positioning post 3-3 is provided with a smooth shaft section and a threaded section 3-3-1; during installation, the smooth shaft section of the movable positioning post 3-3 passes through the movable crossbar 3-7, the step on the movable positioning post 3-3 stops the fixed crossbeam 3-6, and the threaded section 3-3-1 passes through the fixed crossbeam 3-6. The threaded section 3-3-1 cooperates with the nut washer 3-9 to realize the guidance, distance adjustment and limit between the fixed crossbeam 3-6 and the movable crossbar 3-7.

[0039] like Figure 10 As shown, the spring top post 3-4 is made of stainless steel round steel and machined. The spring top post 3-4 is divided into a plug post 3-4-1, a stop post 3-4-2, and a long post 3-4-3. A spring 3-5 is fitted onto the long post 3-4-3, and the extension and retraction of the spring 3-5 achieves the engagement and limitation of the locking round hole corresponding to the position of the box assembly 1. The long post 3-4-3 engages with the through hole of the fixed crossbeam 3-6, and the two can slide relative to each other. The limiting step of the inner end of the stop post 3-4-2 (corresponding to the step surface where the largest diameter cylindrical surface intersects with it) engages with the inner surface of the movable L crossbar 3-7. In addition, the step surface between the stop post 3-4-2 and the plug post 3-4-1 contacts the inner surface of the box 1-1. The stop post 3-4-2 passes through the round hole on the movable L crossbar 3-7.

[0040] Insert the column 3-4-1 through the through hole on the movable L-shaped horizontal bar 3-7, the box body round hole 1-1-1 on the box body 1-1, and finally match the cover plate round hole 2-1 on the cover plate 2.

[0041] Spring 3-5: This is a purchased component, mainly fitted onto the spring top post 3-4. Spring 3-5 is used to provide the rebound force, realizing the functions of compression and rebound.

[0042] Fixed crossbeam 3-6: Made of stainless steel, formed by cutting and bending; it mainly provides for the installation of rotating shaft 3-8 in the left and right round holes, and together with movable L crossbar 3-7, it is fitted with movable positioning column 3-3 and spring top column 3-4 in the corresponding through round holes.

[0043] Movable L-shaped crossbar 3-7: Made of stainless steel, formed by cutting, bending, and riveting nuts; Movable L-shaped crossbar 3-7 has a through hole for engaging and limiting with the spring top post 3-4, and for the movable positioning post 3-3 to pass through; Movable L-shaped crossbar 3-7 has a crossbar threaded hole 3-7-1 for engaging with the threaded end of the moving stud 4, which is the installation position of the moving stud 4;

[0044] Rotating shaft 3-8: Made of stainless steel round bar, machined into shape; one end of rotating shaft 3-8 is rotatably connected to the round holes on the left and right sides of fixed crossbeam 3-6, and the other end is threaded, which is tightened with the single press-fit nut 3-1-1 of right fixed bracket 3-1 (the connection with left fixed bracket 3-2 is the same); its main function is to enable rotation between right fixed bracket 3-1 and fixed crossbeam 3-6.

[0045] Nuts and washers 3-9: These are national standard parts and can be purchased externally.

[0046] The actuating stud 4 is made of stainless steel and machined. Its function is to be screwed into the threaded hole 3-7-1 on the movable L-shaped crossbar 3-7, which pushes the actuating stud 4 to move, thereby pushing the movable L-shaped crossbar 3-7 to extend and rotate up and down.

[0047] M4*12 countersunk screw 5: This is a national standard part and can be purchased externally;

[0048] The specific operation and instructions are as follows:

[0049] Step 1: Assemble the box assembly 1 by welding, grinding, and bolting the various parts together.

[0050] Step 2: Insert the spring top post 3-4 (a total of 4) with the end face of the insertion post 3-4-1 facing the movable L-shaped horizontal bar 3-7 (e.g., Figure 9As shown, insert the circular holes corresponding to the direction from B to A until they reach the bottom of the stop post 3-4-2 (the connection surface between the largest diameter cylindrical surface and the stop post 3-4-2); then, fit the spring 3-5 into the long post 3-4-3, and insert this end of the long post 3-4-3 into the corresponding circular hole of the fixed crossbeam 3-6; then, first insert the movable positioning posts 3-3 at both ends from the direction A through the circular holes passing through the movable L crossbar 3-7, and then through the corresponding circular holes of the fixed crossbeam 3-6. Continue until the bottom is reached (then insert into the middle 2 places), then tighten the nut washer 3-9 with the threaded section 3-3-1; finally, first screw the rotating shaft 3-8 (threaded section) into the single-press rivet nut 3-1-1 of the right fixed bracket 3-1 (do the same operation to screw the rotating shaft 3-8 (threaded section) into the left fixed bracket 3-2); then, take the left and right fixed brackets and insert them into the left and right side round holes of the fixed crossbeam 3-6; this completes the assembly process of the concealed fixed bracket assembly 3;

[0051] Step 3: Insert the concealed fixing bracket assembly 3 into the upper edge of the box 1-1 (set on the four side walls of the box 1-1), and then use an M4*12 countersunk screw 5 to pass through the countersunk hole 1-1-2 of the box and tighten it with the double pressure rivet nut 3-1-2; at this time, the insertion post 3-4-1 of the spring top post 3-4 is protruding from the round hole 1-1-1 of the box (located in the lower round hole).

[0052] Step 4, as follows Figure 15 and Figure 16 As shown, after passing the swivel stud 4 through the waist groove hole 1-1-3 of the box body, screw it into the threaded hole 3-7-1 of the horizontal bar. Then, press the swivel stud 4 down with both hands at the same time and push it upwards. (The built-in fixing bracket assembly 3 rotates around the rotating shaft 3-8). The detailed process of this operation is as follows: the corresponding spring top post 3-4 retracts into the box body 1-1 (the movable L horizontal bar 3-7 is squeezed by the spring top post 3-4, which causes the spring top post 3-4 to compress the spring 3-5 and retract). When the swivel stud 4 is pushed up to the bottom (restricted by the waist groove hole 1-1-3 of the box body 1-1), when it is released, the spring top post 3-4 rebounds slightly and extends into the box body round hole 1-1-1 of the box body 1-1. The oblique insertion is stuck (the round hole located on the top has a chamfer on the reverse side of the box body round hole 1-1-1, which is conducive to the taper of the front end of the spring top post 3-4 contacting the round hole 1-1-1 better).

[0053] Step 5, as follows Figure 16 and Figure 17 As shown, the final installation and removal process of cover plate 2 is as follows:

[0054] Installation process: Place the cover plate 2 on the upper end of the box 1-1, then compress and turn the stud 4, causing the spring top post 3-4 to retract and then slide downwards until it is restricted by the lower end of the waist groove hole 1-1-3 of the box 1-1; at this time, the spring top post 3-4 passes through the round hole 1-1-1 of the box and then through the round hole 2-1 of the cover plate; if the spring top post 3-4 fails to pass through the round hole 1-1-1 of the box and then through the round hole 2-1 of the cover plate, press the cover plate 2 around the corresponding position with your palm, so that the spring top post 3-4, under the action of the spring 3-5, contacts the approximate middle area of ​​the round hole 2-1 of the cover plate and then passes through, forming a wrapped and restrained state; at this point, the closed assembly of the cover plate 2 and the box assembly 1 is completed;

[0055] Disassembly process: Press down on box 1 with both hands at the same time, and slide the stud 4 on one side upwards. After passing the cover plate and avoiding the waist groove hole 2-2, it is restricted by the waist groove hole 1-1-3 of box 1-1. When you release the stud 4 with both hands, the spring top post 3-4 rebounds slightly and extends into the box body round hole 1-1-1 of box 1-1, where it is stuck at an angle. Then, complete the same operation on the other 3 sides in sequence to remove the cover plate 2.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A cassette cover fixing structure characterized by comprising: The utility model relates to a box body assembly (1), cover plate (2), built-in fixing frame assembly (3), push screw (4), cover plate (2) is installed on box body assembly (1) through built-in fixing frame assembly (3), push screw (4) is fixedly installed with built-in fixing frame assembly (3), through push screw (4) is pushed up and down, further realize built-in fixing frame assembly (3) rotation, further realize cover plate (2) closing and opening.

2. The box cover fixing structure according to claim 1, characterized by The built-in fixing frame assembly (3) includes right fixed support (3-1), left fixed support (3-2), movable positioning column (3-3), spring top column (3-4), spring (3-5), fixed crossbeam (3-6), movable L crossbar (3-7), rotating shaft (3-8) and nut washer (3-9), right fixed support (3-1), left fixed support (3-2) are both realized the rotary connection with the both ends of fixed crossbeam (3-6) through rotating shaft (3-8), movable positioning column (3-3) passes through the through hole on movable L crossbar (3-7) and fixed crossbeam (3-6) and cooperates with nut washer (3-9), realizes the guidance, distance adjustment and limit between movable L crossbar (3-7) and fixed crossbeam (3-6), one end of spring top column (3-4) is provided with spring (3-5), and the through hole of fixed crossbeam (3-6) is cooperated and relatively slides, the other end of spring top column (3-4) passes through the through hole on movable L crossbar (3-7), and spring top column (3-4) is used for realizing cooperation with cover plate (2), spring (3-5) is used for providing rebound force, push screw (4) is fixedly installed on movable L crossbar (3-7).

3. The box cover fixing structure according to claim 2, characterized by The right fixed support (3-1), left fixed support (3-2) are all bending parts, and one side is connected with rotating shaft (3-8), further realize the rotary connection with fixed crossbeam (3-6), the other side is fixedly connected with box body assembly (1).

4. The box cover fixing structure according to claim 2, characterized by The movable positioning column (3-3) is provided with a light axis section and a threaded section (3-3-1), when installing, the step surface on movable positioning column (3-3) is stopped to fixed crossbeam (3-6) and the threaded section (3-3-1) passes through fixed crossbeam (3-6), the threaded section (3-3-1) is cooperated with nut washer (3-9), realizes the guidance, distance adjustment and limit between fixed crossbeam (3-6) and movable L crossbar (3-7).

5. The box cover fixing structure according to claim 2, wherein The spring top post (3-4) is divided into a plug-in post (3-4-1), a stop post (3-4-2) and a long post (3-4-3); the long post (3-4-3) is sleeved with a spring (3-5), and the plug-in post (3-4-1) is matched with and limited by the locking round hole on the box body assembly (1) through the expansion and contraction of the spring (3-5); the long post (3-4-3) is matched with the through hole of the fixed cross beam (3-6), and the long post (3-4-3) and the fixed cross beam (3-6) can slide relative to each other; the limiting step at one end of the stop post (3-4-2) is matched with the inner surface of the movable L-shaped cross bar (3-7), the stop post (3-4-2) passes through the round hole on the movable L-shaped cross bar (3-7), the step surface between the stop post (3-4-2) and the plug-in post (3-4-1) is in contact with the inner surface of the box body (1-1), and the plug-in post (3-4-1) passes through the box body round hole (1-1-1) and is matched with the cover plate round hole (2-1) on the cover plate (2).

6. The box cover fixing structure according to claim 2, wherein The movable L-shaped cross bar (3-7) is provided with a through hole for matching and limiting the spring top post (3-4) and for the movable positioning post (3-3) to pass through; the movable L-shaped cross bar (3-7) is provided with a cross bar threaded hole 3-7-1 for providing the mounting position of the driving stud (4).

7. The box cover fixing structure according to claim 5, wherein The box body assembly (1) comprises a box body (1-1), and the box body (1-1) is provided with a box body round hole (1-1-1), a box body countersunk hole (1-1-2) and a box body waist groove hole (1-1-3); The box body round hole (1-1-1) is provided with two rows, the upper box body round hole (1-1-1) is used for limiting the plug-in post (3-4-1) when the plug-in post (3-4-1) is obliquely inserted during the opening of the cover plate (2), and the lower box body round hole (1-1-1) is used for passing through the plug-in post (3-4-1) and then being matched with the cover plate round hole (2-1) on the cover plate (2); The box body countersunk hole (1-1-2) is used for passing through a countersunk screw, and the box body waist groove hole (1-1-3) is used for passing through the driving stud (4) and providing a movable position for the driving stud (4) to fluctuate up and down.

8. The box cover fixing structure according to claim 7, characterized by The cover plate (2) is provided with a cover plate avoiding waist groove hole (2-2); the cover plate avoiding waist groove hole (2-2) is used for providing a movable space for the driving stud (4).

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