CN201204767Y - Casing of electronic device - Google Patents

Abstract

The utility model discloses an electronic device's casing, it contains a casing, a lid and a locking mechanical system, the casing includes a lateral wall and a protruding inboard location hook of locating the lateral wall, the lid includes a curb plate that is located the lateral wall outside, the curb plate has the perforation, locking mechanical system locates the curb plate and includes a base plate, an installed part, a location shell fragment and a button, the base plate is fixed in the curb plate inboard and with curb plate looks interval, the installed part is organized and is connected on the base plate, location shell fragment top is fixed in between base plate and the curb plate, the location shell fragment has a block piece of pulling in the location hook, the button is worn to locate to perforate and organize and connect on the location shell fragment and through installed part and base plate joint, the button can make block piece block in the first locating position of location hook for the installed part, and make block piece break away from the second locating position inter-movement of location hook.

Description

Cases of electronic devices

technical field

The utility model relates to a casing of an electronic device, in particular to a locking mechanism of the casing of the electronic device.

Background technique

As shown in Fig. 1, Fig. 2 and Fig. 3, the casing 1 of a general electronic device includes a casing 11, and a cover body 12 covering the casing 11. Each side wall 111 is provided with a positioning hook 112 adjacent to the top end. The cover body 12 includes a top plate 121, two side plates 122 located on the left and right opposite sides of the top plate 121, two positioning springs 123 and two buttons 124, and two spaced clips are provided at the inner surface of the top plate 121 near the rear end. 125 , each engaging piece 125 is used to engage with the top of the rear wall 113 of the casing 11 . Each positioning elastic piece 123 is joined to the inner surface of each side plate 122 adjacent to the top end, each positioning elastic piece 123 has two latching parts 126 located at the bottom for engaging with the positioning hook 112, and each button 124 is passed through each side plate 122 The perforations 127 of each positioning elastic piece 123 are engaged with each button 124 to be pressed by the user to drive the locking portion 126 of each positioning elastic piece 123 to disengage from the positioning hook 112 . The clips 125 on the inner surface of the top plate 121 of the cover 12 are engaged with the top of the rear wall 113 of the housing 11 , and the plurality of blocking pieces 128 at the front edges of the top plate 121 and the side plates 122 abut against the front wall of the housing 11 114 , and the rear locking portion 126 of each positioning elastic piece 123 is engaged with the rear end of each positioning hook 112 , so that the cover 12 is in a locked state relative to the housing 11 .

As shown in Figure 4, when detaching the cover body 12 from the housing 11, first, the user needs to press the two buttons 124 inward at the same time to push the positioning elastic piece 123 to deflect inward at a certain angle, so that the positioning elastic piece 123 is locked. The catch portion 126 is out of the engaging position with the positioning hook 112 , and then, the cover 12 is pushed forward, so that the cover 12 can be detached from the casing 11 . However, in the process of operation, when the user presses the two buttons 124 inward, the inward deflection angle of the positioning spring 123 is likely to be insufficient due to too little applied force. Therefore, the user then pushes the cover body 12 forward. When moving, the rear engaging portion 126 of the positioning elastic piece 123 will still be engaged with the rear end of the positioning hook 112, so that the cover 12 cannot be pushed forward. Moreover, in the situation where the aforementioned cover body 12 cannot be pushed forward, if the user further increases the force of pushing forward, the positioning elastic piece 123 is likely to be deformed due to pressure. Furthermore, the user needs to press the button 124 to keep the positioning elastic piece 123 at a certain angle inwardly, and then the cover body 12 can be pushed forward at the same time. Since the user needs to apply force in two different directions at the same time, Therefore, it is inconvenient to operate.

Utility model content

The purpose of this utility model is to provide a casing of an electronic device. Through the design of the locking mechanism, the button can be positioned after being pressed inside, so as to facilitate the detachment of the cover from the casing and increase the convenience of operation.

The purpose of the utility model and its technical problems are achieved by adopting the following technical means. According to the casing of the electronic device disclosed in the utility model, it includes a casing, a cover and a locking mechanism.

The housing includes a side wall and a positioning hook protruding from the inner side of the side wall. The cover body covers the housing and can move relative to the housing. The cover body includes a side plate located outside the side wall. The side plate has a Through holes, the locking mechanism is set on the side plate and includes a base plate, a mounting piece, a positioning elastic piece and a button. The base plate is fixed on the inner side of the side plate and is spaced from the side plate. Between the base plate and the side plate, the positioning elastic piece has a locking piece located at the bottom and locked in the positioning hook. The button is passed through the hole and assembled on the positioning elastic piece, and is engaged with the base plate through the mounting piece. The button can be opposite The mounting part moves between a first positioning position where the locking part is engaged with the positioning hook, and a second positioning position where the locking part is disengaged from the positioning hook.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical means.

The casing of the aforementioned electronic device, the casing also includes a protruding piece located in front of the positioning hook, the protruding piece is used for contacting the latching piece to make the button disengage from the second positioning position, and the positioning elastic piece is used to provide the button to reset to the first positioning The return spring of the position.

In the casing of the aforementioned electronic device, the width of the inner side of the protruding part from the side wall is greater than the width of the inner side of the positioning hook from the side wall.

In the casing of the aforementioned electronic device, the button has a positioning rod, and the mounting part has a positioning guide hole for the positioning rod to pass through. The positioning guide hole defines a first positioning end and a second positioning end located inside the first positioning end. When the button is at the first positioning position, the positioning rod is clamped to the first positioning end, and when the button is at the second positioning position, the positioning rod is clamped to the second positioning end. The positioning guide hole is generally V-shaped, and the positioning guide hole also defines a stop end located inside the second positioning end, and the stop end is used for abutting against the positioning rod. The protruding part is used for the locking part to contact so that the positioning rod abuts against the blocking end.

In the casing of the aforementioned electronic device, the protruding piece has a contact portion spaced from the side wall for the contact of the locking member and is upright, and a contact portion extends obliquely outwards from the top of the contact portion near the rear side to hold the card. The first guide part guides the catch part to the contact part, and a second guide part extends obliquely outward from the front end of the contact part to guide the catch part to the contact part.

The utility model has the advantage that the casing of the electronic device can be moved between the first positioning position and the second positioning position through the button of the locking mechanism, so as to control the engaging or disengagement of the locking part of the positioning spring and the positioning hook, In this way, the action of pressing the button and pushing the cover can be separated, which can provide the user with convenience in operation; moreover, it can avoid the situation that the cover cannot be pushed due to the force of pressing the button is too small, and the situation caused by improper application can be avoided. The situation where the positioning shrapnel is deformed or other components are damaged due to the force.

Description of drawings

1 is a perspective view of a casing of an existing electronic device;

2 is a partially enlarged view of a casing of an existing electronic device;

3 is a cross-sectional view of a casing of a conventional electronic device, which illustrates that the locking part is locked on the positioning hook;

4 is a cross-sectional view of a casing of a conventional electronic device, which illustrates that the button is pressed to drive the locking part to disengage from the positioning hook;

5 is a perspective view of a preferred embodiment of the housing of the electronic device of the present invention;

Fig. 6 is a schematic cross-sectional view taken along the line 6-6 in Fig. 5, which illustrates that the button is in the first positioning position, and the locking part is engaged with the positioning hook;

7 is a partial perspective view of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the locking part is locked on the positioning hook;

Fig. 8 is a partial three-dimensional exploded view of a preferred embodiment of the housing of the electronic device of the present invention, which illustrates the components of the locking mechanism;

Fig. 9 is a bottom exploded view of the mounting parts and buttons of a preferred embodiment of the casing of the electronic device of the present invention;

Fig. 10 is a bottom view of the installation part and the button of a preferred embodiment of the casing of the electronic device of the present invention, which shows that the button is in the first positioning position, and the third rod part of the positioning rod is engaged with the positioning guide hole first positioning end;

Fig. 11 is a side view of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the mounting parts and buttons are respectively assembled on the base plate and the positioning elastic piece;

Fig. 12 is a schematic cross-sectional view similar to Fig. 6, illustrating that the button is pressed to reach the second positioning position, and the locking part is separated from the positioning hook;

Fig. 13 is a bottom view of the mounting part and the button of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the button is in the second positioning position, and the third rod portion of the positioning rod is engaged with the positioning guide hole second positioning end;

14 is a schematic diagram of the operation of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the cover is pushed forward so that the bent portion is guided to the contact portion through the first guide portion;

Fig. 15 is a schematic cross-sectional view similar to Fig. 6, which illustrates that the bent portion is in contact with the contact portion of the protrusion;

Fig. 16 is a bottom view of the installation part and the button of a preferred embodiment of the casing of the electronic device of the present invention, which shows that the third rod part of the positioning rod abuts against the stop end of the positioning guide hole;

Fig. 17 is a schematic diagram of the operation of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the bending part is separated from the contact part of the protruding part;

Fig. 18 is a schematic diagram of the operation of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the bending part passes through the channel;

Fig. 19 is a schematic diagram of the operation of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the button is in the second positioning position before the cover is assembled back to the casing;

20 is a schematic diagram of the operation of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the cover is pushed back so that the bent portion is guided to the contact portion through the second guide portion; and

FIG. 21 is a partially enlarged view of the contact portion of a preferred embodiment of the casing of the electronic device of the present invention, which illustrates that the contact portion is in an arc shape.

Symbol description of main components (existing)

1 The casing of the electronic device

11 shell

111 side wall

112 positioning hook

113 rear wall

114 front wall

12 cover body

121 top plate

122 side panels

123 Positioning shrapnel

124 buttons

125 clips

126 Locking part

127 perforations

128 baffle

[this utility model]

200 Enclosures for electronic devices

2 shell

21 side wall

22 positioning hook

221 hypotenuse

23 protruding pieces

230 channels

231 connection part

232, 235 contact part

233 First Guidance Department

234 Second Guidance Department

24 rear wall

25 front wall

3 cover

31 top plate

311 card connector

32 side panels

321 perforation

322 studs

4 locking mechanism

41 Substrate

411 opening

412 positioning hole

42 positioning shrapnel

421 pieces

422 joint

423 card catch

424 through holes

425 locking part

426 bending part

427 abutment surface

43 Mounting parts

431 storage tank

432 The first clamping part

433 The second clamping part

434 Long guide hole

435 positioning guide hole

436 The first positioning end

437 The second positioning end

438 stop end

439 positioning column

44 buttons

441 cylinder

442 Press part

443 positioning rod

444 bump

445 pivot hole

446 Wall

447 spring arm

448 hook

449 First shaft

450 second shaft

451 Third shaft

45 spring

46 screws

I, II, III arrows

Detailed ways

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. Through the description of the specific implementation, one can gain a deeper and more specific understanding of the technical means and effects of the utility model to achieve the intended purpose. new restrictions.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

As shown in Figure 5 and Figure 6, it is a preferred embodiment of the casing of the electronic device of the present invention, the electronic device can be a computer mainframe or a server, and the casing 200 of the electronic device includes a casing 2, a cover Body 3, and two locking mechanisms 4.

As shown in FIG. 5 , FIG. 6 , FIG. 7 and FIG. 8 , the housing 2 is U-shaped and includes two sidewalls 21 located on opposite sides of the left and right sides, two positioning hooks 22 and two protruding pieces 23 . Each positioning hook 22 protrudes from the inner side of each side wall 21 near the top end, and each protruding piece 23 is formed by stamping inwardly from each side wall 21 and after being bent, each protruding piece 23 is located in front of each positioning hook 22 and has an L shape. Each protruding piece 23 has a connecting portion 231 extending laterally inwardly from the side wall 21, a contact portion 232 extending upward from the inner side of the connecting portion 231 to be an upright shape, and a contact portion 232 extending outward from the top of the contact portion 232 near the rear side. and a first guide portion 233 that extends obliquely upward, and a second guide portion 234 that extends obliquely upward from the front end of the contact portion 232, wherein the contact portion 232 inside the protrusion 23 is far from the side wall 21 The width is greater than the width from the inside of the positioning hook 22 to the side wall 21 .

The cover body 3 is inverted U-shaped and can be moved forward and backward to cover the housing 2. The cover body 3 includes a top plate 31, two side plates 32 located on the left and right opposite sides of the top plate 31, and a plurality of side plates 32 arranged between the top plate 31 and the right side. The baffle 33 on the front edge of the side plate 32, the inner surface of the top plate 31 protrudes from the rear side and is provided with two clips 311, each clip 311 is used to clip on the top of the rear wall 24 of the housing 2, and each baffle The piece 33 is used to abut against the front wall 25 of the housing 2 , so that after the cover 3 is assembled in the housing 2 , the cover 3 can be prevented from moving backward and upward from the housing 2 .

Each locking mechanism 4 is disposed on each side plate 32 of the cover body 3 , and each locking mechanism 4 includes a base plate 41 , a positioning spring 42 , a mounting part 43 , a button 44 and a spring 45 . The base plate 41 is arranged on the inner side of the side plate 32 and has an opening 411. The position of the opening 411 corresponds to the position of a through hole 321 of the side plate 32, and is used for the installation part 43 to pass through. The positioning holes 412 corresponding to the positions of the studs 322 on the inner side of the board 32 can be locked to the side plates by a plurality of screws 46 respectively pierced through the positioning holes 412 of the base plate 41 and screwed to the studs 322 of the side plates 32 on. The positioning elastic piece 42 is arranged between the side plate 32 and the base plate 41. The positioning elastic piece 42 is made of metal and has a body 421, a joint portion 422 extending laterally inward from the top of the body 421 and bending upward, and two spaced protrusions. At the catch piece 423 at the bottom of the sheet body 421, the sheet body 421 is provided with a through hole 424 corresponding to the position of the through hole 321 of the side plate 32 and the opening 411 of the base plate 41. The through hole 321 and the through hole 424 are used for the button 44 to pass through. set up. Each catch piece 423 is provided with a catch portion 425 extending downward from the bottom end of the sheet body 421 to catch the positioning hook 22 . The bent portion 426 of the joint portion 422 is joined with the base plate 41 by riveting, so that the positioning elastic piece 42 can be fixed on the base plate 41 . It should be noted that the substrate 41 can also be fixed on the side plate 32 by welding or other methods, and is not limited to the connection method disclosed in this embodiment.

As shown in Fig. 8, Fig. 9 and Fig. 10, the mounting part 43 is provided with a housing groove 431 for accommodating the button 44 and the spring 45. The first clamping portion 432, and two hook-shaped second clamping portions 433 protruding from the front and rear opposite sides of the outer surface respectively, each first clamping portion 432 is spaced from each second clamping portion 433 Thus, after the mounting member 43 is inserted through the opening 411 of the substrate 41 , the substrate 41 can be clamped between the first and second clamping portions 432 , 433 . The top side of the mounting part 43 is provided with an elongated guide hole 434 extending laterally, and the bottom side is provided with a positioning guide hole 435. The positioning guide hole 435 is generally V-shaped with an opening facing the outside from the bottom view of FIG. The guide hole 435 is defined with a first positioning end 436 and a second positioning end 437 adjacent to the front and rear sides respectively, and a stopper end 438 adjacent to the inner side, wherein the second positioning end 437 is located at the side of the first positioning end 436 inside, and the blocking end 438 is located inside the second positioning end 437 .

The button 44 has a hollow cylinder 441 , a pressing portion 442 formed at the outer end of the cylinder 441 , and a positioning rod 443 disposed in the cylinder 441 . The cylinder 441 is used to pass through the accommodating groove 431 of the mounting part 43, and has an elongated guide hole 434 passing through the mounting part 43 and a protrusion 444 that can move along the elongated guide hole 434, and a The pivot hole 445 on the outer side of the protrusion 444 . The pressing part 442 is used for pressing by the user, and it is provided with a peripheral wall 446 in a surrounding shape, and two elastic arms 447 formed on the top and bottom opposite sides of the peripheral wall 446 respectively, and a free end of each elastic arm 447 protrudes. The hook 448 and the button 44 can pass through the through hole 424 of the positioning elastic piece 42, abut against the outside of the sheet body 421 of the positioning elastic piece 42 through the peripheral wall 446, and the hooks 448 of each elastic arm 447 are engaged with the inside of the sheet body 421, The button 44 can be assembled on the positioning elastic piece 42 .

The positioning rod 443 has a first rod portion 449 extending transversely, a second rod portion 450 protruding from the top side of the first rod portion 449 and adjacent to the outer end of the first rod portion 449, and a second rod portion 450 protruding from the first rod portion 449. 449 bottom side and adjacent to the third rod 451 at the inner end of the first rod 449, the second rod 450 is used to pass through the pivot hole 445 of the column 441, so that the positioning rod 443 can use the second rod 450 as the axis The heart pivots relative to the cylinder 441 . The third rod 451 exposes the inner side of the cylinder 441 and is used to pass through the positioning guide hole 435 of the mounting part 43. Since the second rod 450 is pivotally connected to the pivoting hole 445, when the button 44 moves relative to the mounting part 43 , the third rod portion 451 can move along the direction defined by the positioning guide hole 435 . In addition, the spring 45 is sheathed on a positioning post 439 ( FIG. 9 ) in the receiving groove 431 of the mounting member 43 , and the spring 45 abuts against the second rod portion 450 of the positioning rod 443 to provide a reset elastic force for the button 44 .

When assembling the locking mechanism 4 on the side plate 32 of the cover body 3, the spring 45 is sleeved on the positioning post 439 of the mounting part 43, and the second rod portion 450 of the positioning rod 443 is passed through the pivot hole 445 of the post body 441 , so that the third rod portion 451 is exposed to the inner end of the cylinder 441, and then the button 44 is inserted into the accommodating groove 431 of the mounting part 43, so that the protrusion 444 of the button 44 is passed through the elongated guide hole 434, and the third The rod portion 451 passes through the positioning guide hole 435 , and the spring 45 abuts against the second rod portion 450 . At this time, the assembly of the button 44 and the mounting member 43 is completed. Wherein, due to the elastic force of the spring 45 , the third rod portion 451 is engaged with the first positioning end 436 of the positioning guide hole 435 .

As shown in FIG. 6 , FIG. 8 and FIG. 11 , after the joint portion 422 of the positioning elastic piece 42 is riveted to the outer surface of the substrate 41 , then the assembled button 44 and the mounting part 43 are inserted into the through hole 424 from the outside of the positioning elastic piece 42 , Make the installation part 43 pass through the opening 411 of the base plate 41, and the base plate 41 is clamped between the first and second engaging parts 432, 433 of the installation part 43. In addition, when the two hooks 448 of the button 44 respectively interfere with When the second abutment surface 427 of the sheet body 421 of the positioning elastic sheet 42 is reached, it will shrink inwardly. After the hook 448 passes through the through hole 424, the reset elastic force of the elastic arm 447 drives the hook 448 to reset, and the hook 448 is snapped to the sheet body. 421, and the peripheral wall 446 of the pressing portion 442 is engaged with the outer surface of the sheet body 421. At this time, the installation part 43 and the button 44 are assembled with the base plate 41 and the positioning elastic piece 42 respectively. Finally, each screw 46 passes through each positioning hole 412 of the base plate 41 and is screwed to each stud 322 of the side plate 32, so that the pressing portion 442 of the button 44 is penetrated through the through hole 321 of the side plate 32, and the locking mechanism 4 is It is assembled on the side plate 32 of the cover body 3 .

As shown in Figure 6, Figure 7 and Figure 10, due to the elastic force of the spring 45, the third rod portion 451 of the positioning rod 443 is engaged with the first positioning end 436 of the positioning guide hole 435, at this time, the button 44 is relatively The mounting member 43 is at a first positioning position, and the engaging portion 425 of the rear engaging member 423 is engaged with the rear end of the positioning hook 22 , and the positioning spring 42 and the positioning hook 22 are in a locked state. As shown in FIGS. 12 and 13 , when the user presses the pressing portions 442 of the two buttons 44 in the direction shown by the arrow I and moves inwardly, the third rod portion 451 of the positioning rod 443 will move from the first rod portion 451 shown in FIG. 10 . The position of the positioning end 436 moves toward the stop end 438. When the third rod portion 451 abuts against the stop end 438, the button 44 can no longer move inwardly relative to the mounting part 43, and then the button pressed on the pressing portion 442 is released. Power, because the third rod portion 451 moves slightly backward and toward the second positioning end 437 due to the guidance of the stopper end 438, therefore, the return elastic force of the spring 45 and the sheet body 421 of the positioning elastic piece 42 will drive the position of the positioning rod 443. The third rod portion 451 moves from the stop end 438 to the second positioning end 437 , so that the third rod portion 451 is engaged with the second positioning end 437 . At this time, the button 44 is at a second positioning position relative to the mounting member 43 . Driven by the button 44, the sheet body 421 of the positioning elastic piece 42 will swing inward with the connection between its top end and the joint portion 422 as the axis. When the button 44 is in the second positioning position relative to the mounting part 43, The locking portion 425 of the locking member 423 is completely separated from the positioning hook 22, so that the positioning spring 42 and the positioning hook 22 are in an unlocked state, and the user can move the cover body 3 in the direction shown by the arrow II (Figure 14). Push forward so that the cover 3 is detached from the housing 2.

As shown in Fig. 14, Fig. 15, Fig. 16 and Fig. 17, since the contact portion 232 on the inner side of the protruding piece 23 is wider than the width from the side wall 21 to the inner side of the positioning hook 22, and is matched with the first guide portion 233 Therefore, when the user pushes the cover body 3 forward in the direction indicated by the arrow II, the bent portion 426 of the engaging member 423 will touch the first guiding portion 233 on the rear side of the protruding member 23 . When the bent part 426 touches the first guide part 233, the first guide part 233 will exert an inward force on the bent part 426 so that the bent part 426 will gradually deflect inward, and the bent part will 426 is guided to the contact portion 232, and at the same time, the sheet body 421 of the positioning elastic piece 42 will drive the button 44 to move inward relative to the mounting piece 43, so that the third rod portion 451 of the positioning rod 443 (Figure 13) is moved by the second The positioning end 437 moves toward the stop end 438 . When the bent portion 426 abuts against the contact portion 232, the third rod portion 451 abuts against the stopper end 438, and is guided by the stopper end 438 to move slightly forward toward the first positioning end 436. When the folded portion 426 moves to the position shown in FIG. 17 and breaks away from the contact portion 232, the button 44 is reset to the first positioning position by the reset elastic force of the sheet body 421 of the positioning elastic piece 42 and the reset elastic force of the spring 45. At this time, The sheet body 421 is reset to the position when it is not deflected ( FIG. 17 ), and the third rod portion 451 is reset to the position where it is engaged with the first positioning end 436 as shown in FIG. 10 .

Thus, the user can release the button 44 and push the cover 3 forward after pressing the button 44 to make it positioned at the second fixed position during operation, so as to detach the cover 3 from the housing 2. During the process, It will not happen that the cover body 3 cannot be pushed forward because the force applied to the button 44 is too small, so that the deflection angle of the positioning spring 42 is not large enough to break away from the engagement with the positioning hook 22. The application of force results in the deformation of the positioning elastic piece 42 or the damage of other components. Furthermore, separating the action of pressing the button 44 from the action of pushing the cover 3 can provide the user with convenience in operation, and when the cover 3 is detached, the two buttons 44 can achieve an automatic reset action.

As shown in Figure 18, when the cover body 3 is to be assembled back to the housing 2, the user can push the cover body 3 backwards in the direction indicated by arrow III. position, the bent portion 426 of the catch piece 423 will pass through the channel 230 defined by the contact portion 232 of the side wall 21 and the protruding piece 23 and the first and second guide portions 233, 234, when the catch piece The locking part 425 of 423 is in contact with the hypotenuse 221 of the positioning hook 22, and the positioning hook 22 will exert an inward force on the locking part 425 to make the locking part 425 deflect inwardly, and when the locking part 425 moves to the positioning hook 22 and not in contact with the positioning hook 22, the button 44 is reset to the first positioning position through the return elastic force of the sheet body 421 (Figure 8) and the spring 45 (Figure 8), and the locking part 425 is reset to the position shown in Figure 7. The latch shown is at the latching position on the rear side of the positioning hook 22 .

As shown in Figure 19 and Figure 20, before the cover body 3 is assembled back to the housing 2, if the button 44 (Figure 13) is positioned at the second positioning position as shown in Figure 13 due to mispressing, the cover body will 3 During the process of being pushed backwards in the direction indicated by arrow III, the bent portion 426 of the locking member 423 will touch the second guide portion 234 on the front side of the protruding member 23, and the second guide portion 234 will drive The bent part 426 deflects inwardly, and guides the bent part 426 to the contact part 232, so that the third rod part 451 of the positioning rod 443 abuts against the stop end 438 as shown in FIG. When the part 426 breaks away from the protruding part 23 and the locking part 425 moves to the rear of the positioning hook 22, the button 44 is reset to the first position as shown in FIG. a positioning position, and the latching portion 425 resets to the latching position latched on the rear side of the positioning hook 22 as shown in FIG. 7 .

As shown in Figure 13, Figure 16 and Figure 21, viewed from the top view of Figure 21, in this embodiment, the contact portion 235 of the protruding piece 23 can also be in the shape of an arc with the opening facing the side wall 21, which can also be used for locking The bending portion 426 ( FIG. 8 ) of the piece 423 contacts to drive the third rod portion 451 of the positioning rod 443 to move from the first positioning end 436 or the second positioning end 437 to the stop end 438 and abut against the stop end 438.

To sum up the above, the button 44 of the locking mechanism 4 in this embodiment can move between the first positioning position and the second positioning position to control the latching part 423 of the positioning spring 42 and the positioning hook 22 to engage or disengage, by This can separate the action of pressing the button 44 from the action of pushing the cover 3 , which can provide convenience for the user in operation. Furthermore, it is possible to avoid the situation where the cover body 3 cannot be pushed due to too little force for pressing the button 44, and the situation where the positioning spring 42 is deformed or other components are damaged due to improper application of force, and it can indeed achieve the requirements of the utility model. Purpose.

Claims (26)

1. A casing of an electronic device, comprising: a casing including a side wall, and a positioning hook protruding from the inside of the side wall; The housing moves, the cover body includes a side plate located on the outside of the side wall, the side plate has a perforation; and a locking mechanism is arranged on the side plate, the locking mechanism includes: a base plate, fixed on the inside of the side plate and It is spaced from the side plate; the mounting piece is assembled on the base plate; the top end of the positioning elastic piece is fixed between the base plate and the side plate, and the positioning elastic piece has a clip located at the bottom end and caught in the positioning hook A catch; a button, which is installed in the through hole and assembled on the positioning elastic sheet, and is engaged with the base plate through the mounting part, and the button can be locked in the positioning relative to the mounting part The hook moves between a first positioning position and a second positioning position where the engaging member is disengaged from the positioning hook. 2. The casing of the electronic device according to claim 1, wherein the button has a positioning rod, the mounting part has a positioning guide hole for the positioning rod to pass through, and the positioning guide hole defines a first A positioning end, and a second positioning end located inside the first positioning end, when the button is at the first positioning position, the positioning rod is engaged with the first positioning end, and when the button is at the second positioning position , the positioning rod is clipped to the second positioning end. 3 . The casing of the electronic device according to claim 2 , wherein the positioning elastic piece is used to provide a reset elastic force for the button to return to the first positioning position. 4 . 4. The casing of the electronic device according to claim 1, wherein the casing further comprises a protruding piece located in front of the positioning hook, the protruding piece is used for the latching piece to contact to disengage the button In the second positioning position, the positioning elastic piece is used to provide a reset elastic force for the button to return to the first positioning position. 5 . The casing of the electronic device according to claim 4 , wherein the width of the inner side of the protruding member from the side wall is larger than the width of the inner side of the positioning hook from the side wall. 5 . 6. The casing of an electronic device according to claim 5, wherein the protruding member has an upright contact portion spaced from the side wall for the engaging member to contact, and a contact portion formed by the engaging member. The top end of the contact part extends obliquely outwards near the rear side to guide the locking part to the first guide part of the contact part. 7. The casing of the electronic device according to claim 6, wherein the protruding member further has a tip extending outwardly from the front end of the contact portion to guide the engaging member to the contact portion. of the second guide. 8. The casing of an electronic device according to claim 5, wherein the protruding member has an upright contact portion spaced from the side wall for the engaging member to contact, and a contact portion formed by the engaging member. The top end of the contact part extends obliquely outwards near the front side, and is used for guiding the locking part to the second guide part of the contact part. 9. The housing of an electronic device according to claim 5, wherein the protruding member has a contact portion spaced from the side wall for the locking member to contact, the contact portion is an opening facing the The arc shape of the side walls. 10. The casing of an electronic device according to claim 5, wherein the protruding member has a contact portion spaced from the side wall for the engaging member to contact, and the casing further includes a contact portion formed by the engaging member. A channel is defined between the side wall and the contact portion for the engaging component to pass through. 11. The casing of the electronic device according to claim 5, wherein the locking mechanism further comprises a spring for providing a return elastic force for the button to return to the first positioning position. 12. The casing of an electronic device according to claim 6, 7, 8, 9 or 10, wherein the protruding member is L-shaped and has a connection portion connected between the side wall and the contact portion . 13. The casing of the electronic device according to claim 5, wherein the button has a positioning rod, the mounting part has a positioning guide hole for the positioning rod to pass through, and the positioning guide hole defines a first A positioning end, and a second positioning end located inside the first positioning end, when the button is at the first positioning position, the positioning rod is engaged with the first positioning end, and when the button is at the second positioning position , the positioning rod is clipped to the second positioning end. 14. The casing of an electronic device according to claim 13, wherein the positioning guide hole is V-shaped, and the positioning guide hole further defines a stop end located inside the second positioning end, the stop end It is used for the abutment of the positioning rod. 15 . The casing of the electronic device according to claim 14 , wherein the protruding member is used for the engaging member to contact so that the positioning rod abuts against the stopping end. 16 . 16. The casing of an electronic device according to claim 15, wherein the protruding member has an upright contact portion spaced from the side wall for the engaging member to contact, and a contact portion formed by the engaging member. The top end of the contact part extends obliquely outwards near the rear side to guide the locking part to the first guide part of the contact part. 17. The casing of an electronic device according to claim 16, wherein the protruding member further has a tip extending outwardly from the front end of the contact portion to guide the engaging member to the contact portion of the second guide. 18. The casing of an electronic device according to claim 15, wherein the protruding member has an upright contact portion spaced from the side wall for the engaging member to contact, and a contact portion formed by the protruding member. The top end of the contact part extends obliquely outwards near the front side, and is used for guiding the locking part to the second guide part of the contact part. 19. The casing of an electronic device according to claim 15, wherein the protruding member has a contact portion spaced from the side wall for the engaging member to contact, the contact portion is an opening facing the The arc shape of the side walls. 20. The casing of an electronic device according to claim 15, wherein the protruding member has a contact portion spaced from the side wall for the engaging member to contact, and the housing further includes a contact portion formed by the engaging member. A channel is defined between the side wall and the contact portion for the engaging component to pass through. 21. The casing of an electronic device according to claim 16, 17, 18, 19 or 20, wherein the locking part comprises a locking part for locking the positioning hook, and a locking part for locking the positioning hook. The bottom end of the catch part extends inwardly and is used as a bent part for contacting with the contact part. 22. The casing of the electronic device according to claim 15, wherein the locking mechanism further comprises a spring for providing a return elastic force for the button to return to the first positioning position. 23. The casing of an electronic device according to claim 15, wherein the button further has a pivot hole, and the positioning rod comprises a first rod part, a protruding one side of the first rod part and The second rod part is passed through the pivot hole, and a third rod part is protruded from the other side of the first rod part and passed through the positioning guide hole. 24. The casing of an electronic device according to claim 15, wherein the mounting part further has a receiving groove for accommodating the button and the spring, and a long guide hole extending laterally, the button It also has a projection that passes through the elongated guide hole and can move along the elongated guide hole. 25. The casing of an electronic device according to claim 15, wherein the base plate has an opening, the mounting part is passed through the opening and has two first engaging portions disposed on opposite sides, and Two second clamping parts arranged on opposite sides, the substrate is clamped between each of the first and second clamping parts. 26. The casing of an electronic device according to claim 15, wherein the top of the positioning elastic piece is fixed on the substrate, the positioning elastic piece also has a through hole for the button to pass through, and the button also has an abutment The surrounding wall on the outside of the positioning elastic piece, and two elastic arms formed on the opposite side of the surrounding wall, each of the elastic arms includes a hook engaged on the inside of the positioning elastic piece.

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