TWI383727B - Fixing device and combination of fixing device and electronic device - Google Patents

Description

Fixing device and its combination with electronic equipment

The present invention relates to a fixing device, and more particularly to a fixing device for fixing an electronic device to other objects and a combination thereof with the electronic device.

With the development of electronic technology, various portable electronic devices have emerged, such as portable optical disc playback devices and personal digital assistants (PDAs). Due to the portability of portable electronic devices, people often carry electronic devices while on the go to add fun when riding a vehicle.

However, when people use vehicles, they often use portable electronic devices or put them on their knees, which brings inconvenience to users. In addition, due to the bumps of the vehicle, portable electronic devices may also fall from the hands or knees and be damaged.

In view of this, it is necessary to provide a fixture that facilitates the attachment of electronic devices to other objects.

In addition, it is also necessary to provide a combination of the fixture and the electronic device.

A fixing device includes a housing and a latching device received in the housing. The latching device comprises a sliding member, a locking member and an unlocking member, the sliding member comprising a sliding seat sliding relative to the housing, an elastic member fixed to the sliding seat and the housing, and a locking portion disposed at one end of the sliding seat The sliding member further has a driving block, the driving block is provided with a first inclined surface; the locking member is pivoted at one end thereof a latching tongue is disposed on the housing, and a retaining block on the first inclined surface is protruded from a side of the latching member; the unlocking member is fixed on the housing, and an unlocking portion is disposed thereon. The unlocking portion is located between the housing and the locking portion; a side of the unlocking portion opposite to the housing is further provided with a contact portion; the housing further defines an opening and an opening, the locking tongue and the locking portion The contact portion protrudes outside the housing through the opening and the opening; the lock block corresponding to the bayonet is also protruded from the housing, and is compressed when the sliding member slides toward the unlocking member The elastic member and the locking block are engaged in the locking portion, and the first inclined surface pushes the driven block to rotate the locking member relative to the housing to retract the locking tongue into the housing, and by pressing the pressing force The unlocking portion lifts the locking portion to disengage the locking block from the locking portion, and the sliding member is reset by the elastic member to extend the locking tongue out of the housing.

A combination of a fixture and an electronic device includes an electronic device and a fixture. The fixture is used to secure the electronic device to other objects. The electronic device is provided with a plurality of card slots. The fixing device comprises a housing and a latching device received in the housing, the latching device comprising a sliding member, a locking member and an unlocking member. The sliding member includes a sliding seat that slides relative to the housing, an elastic member fixed to the sliding seat and the housing, and a locking portion disposed at one end of the sliding seat. The sliding member further has a driving block, and the driving block is provided with a first a slope. One end of the locking member is pivotally disposed on the housing, and a locking tongue is disposed thereon. A side of the locking member further protrudes from the driven block on the first inclined surface. The unlocking member is fixed on the casing, and an unlocking portion is disposed on the casing. The unlocking portion is located between the casing and the locking portion. The side of the unlocking portion opposite to the casing is further provided with a contact portion. An opening and an opening are defined in the housing, and the locking tongue and the contact portion respectively protrude through the opening and the opening to protrude from the shell Outside the body. A lock block corresponding to the lock portion is also protruded from the housing. When the sliding member slides toward the unlocking member, the elastic member is compressed and the locking block is engaged in the locking portion, while the first inclined surface pushes the driven block to rotate the locking member relative to the housing to retract the locking tongue In the housing, the pressing portion is lifted by the pressing portion to lift the locking portion to disengage the locking block from the locking portion, and the sliding member is reset by the elastic member to make the locking tongue Extending out of the housing is inserted into one of the slots.

Due to the above-mentioned fixing device, when the electronic device is used to carry the vehicle, the electronic device can be installed in the vehicle by the fixing device, thereby bringing convenience to the people. In addition, since the fixing device is provided with a locking device, and the locking member is engaged and released by the unlocking member of the locking device and the locking block, the first inclined surface provided on the sliding member drives the locking tongue to lock or release. This electronic device makes it easy to install or uninstall electronic devices.

Referring to Figures 1 and 2, the fixture 20 is used to removably secure the electronic device 10 to other objects, such as a car seat. In the embodiment, the electronic device 10 is a CD-ROM drive. In other embodiments, the electronic device 10 can also be other audio and video playback devices such as a notebook computer and a television.

The electronic device 10 has a substantially rectangular shape with a display screen 12 on one side and a plurality of card slots 140 on the other side opposite the display screen 12.

Referring to FIG. 3 at the same time, the fixing device 20 is integrally matched with the shape of the electronic device 10. The front housing 30 is opposite to the electronic device 10, the rear housing 40 is engaged with the front housing 30, and partially received. Housing 30 and rear housing Two latching devices 50 between 40.

Referring to FIGS. 4-6, the front housing 30 has an outer surface 320 opposite the electronic device 10 and an inner surface 322 opposite the rear housing 40. The hooks 31 are disposed on the outer surface 320 at the same number and opposite positions as the card slots 140. Each of the hooks 31 can pass through the card slot 140 and be hooked in the electronic device 10. The inner surface 322 is juxtaposed with two mounting portions 33 for symmetrically mounting the two latching devices 50 on both sides of the front housing 30.

The mounting portion 33 includes a notch 350 formed on the side wall of the front case 30 and a plurality of guiding posts 352 that are sequentially protruded from the notch 350 on the inner surface 322, and the plurality of guiding posts 352 are sequentially arranged on a straight line a.

The mounting portion 33 further includes a lock block 390 protruding from the inner surface 322 and two fixing posts 394 and an opening 392 extending through the front housing 30. The lock block 390 and the opening 392 are sequentially arranged on a straight line a where the three guide posts 352 are located. The lock block 390 has a wedge shape that includes a plane 391 that is parallel to the inner surface 322 and an inclined surface 393 that is obliquely coupled to the plane 391. The thickness of the lock block 390 gradually increases toward the opening 392.

The mounting portion 33 further includes an opening 372 formed in the front housing 30 and next to a hook 31, a limiting post 374 protruding from the inner surface 322 and a stop portion 376, and two side plates 370. The straight line b where the opening 372 and the limiting post 374 are located is parallel to the straight line a where the three guiding posts 350 are located. The two side plates 370 are respectively disposed opposite to the two sides of the straight line b where the opening 372 and the limiting post 374 are located. Each of the two side plates 370 is provided with a pivot hole 371. The stop portion 376 is located on one side of the straight line b where the opening 372 and the limiting post 374 are located, which is a hook portion extending perpendicularly from the inner surface 322.

The latching device 50 includes a slider 60 slidably mounted to the inner surface 322, a latching member 70 pivotally mounted to the inner surface 322, and an unlocking member 80 secured to the inner surface 322.

The sliding member 60 includes a sliding seat 61, a driving block 62 protruding from one side of the sliding seat 61, an operating portion 63 and a locking portion 64 connected to opposite ends of the sliding seat 61, and an elastic member 65 whose one end is connected to the sliding seat 61. .

The carriage 61 has a substantially elongated shape and is provided with a rectangular chute 612 equal in number to the guide post 352. The chutes 612 are respectively used for the guide post 352 to pass through, and slide along the first direction OX and the second direction OY opposite to the first direction OX, so that the slide 61 is slidably fixed to the inner surface 322. The first direction OX is the direction from the guide post 352 to the lock block 390 in a sequential arrangement.

The operating portion 63 is fixed to one end of the sliding seat 61 and can be exposed to the front casing 30 by the notch 350 to facilitate the user to press or the like.

One end of the elastic member 65 is fixed to the slider 61, and the other end is fixed to one of the guide posts 352. When the operating portion 63 is pressed to move the slider 61 in the first direction OX, the elastic member 65 is compressed, thereby accumulating one. An elastic potential energy for moving the carriage 61 in a second direction OY that is opposite to the first direction OX.

The locking portion 64 is connected to one end of the sliding seat 61 away from the operating portion 63 and is located on the locking block 390. A bayonet 640 is defined in the latching portion 64. When the carriage 61 moves in the first direction OX under the pressing operation of the operation portion 63, the lock portion 64 can be slid along the inclined surface 393, and when the bayonet 640 of the lock portion 64 passes over the inclined surface 393, The locking block 390 is partially engaged in the bayonet 640 to lock the slider 60 against the force of the elastic member 65 along the second The direction OY moves and returns to the position when it was not pressed.

The driving block 62 includes a first inclined block 620 extending from the sliding seat 61 near the opening 372 in a rectangular block shape, and supporting blocks 624a and 624b connected to the opposite ends of the first inclined block 620 in a rectangular block shape. The top of the first oblique block 620 opposite to the rear housing 40 gradually decreases toward the locking portion 64 to form a first inclined surface 622.

The tops of the support blocks 624a and 624b opposite to the rear housing 10 have two first horizontal surfaces 621a and 621b connected to opposite ends of the inclined surface 622, and the first horizontal surfaces 621a and 621b are respectively opposite from opposite ends of the inclined surface 622. The first direction OX and the second direction OY extend in parallel.

One end of the locking member 70 is pivotally disposed on the inner surface 322, and a locking tongue 72 is protruded from the bottom of the other end. A follower block 76 is also protruded from the locking member 70.

One end of the locking member 70 protrudes from the opposite sides to two pivot shafts 71. The two pivot shafts 71 are respectively fixed in the two pivot holes 371, so that the locking member 70 is rotatably assembled to the front housing 30. On the inner surface 322.

The locking tongue 72 is disposed at an end of the locking member 70 away from the pivot 71, and protrudes out of the front housing 30 through the opening 372.

The central portion of the locking member 70 is further provided with a through hole 78 so as to be received therein to limit the movable range of the locking member 70. A cylindrical mounting shaft 73 is further disposed on the side wall of the locking member 70, and the mounting shaft 73 and the driven block 76 are respectively located on two sides of the two pivot shafts 71.

The locking member 70 is further provided with a torsion spring 74. The torsion spring 74 is sleeved on the mounting shaft 73. One end portion 742a is hooked on the locking member 70, and the other end portion 742b is restrained in the stopping portion 376. The torsion spring 74 is clamped to the locking member 70 and the stopping portion 376 between. When the locking member 70 is rotated toward the rear housing 40, the torsion spring 74 is pressed to accumulate the elastic potential energy for restoring the locking member 70.

The driven block 76 includes a second oblique block 760 extending perpendicularly outward from the side wall of the self-locking fastener 70 and a base block 764 connected to the second oblique block 760. The bottom of the second oblique block 760 opposite to the inner surface 322 is formed with a second inclined surface 761 having the same inclination direction as the first inclined surface 622. The bottom of the base block 764 opposite the inner surface 332 has a second horizontal surface 763 that is coupled to the second ramp 762. The second horizontal surface 763 is located on the first horizontal surface 621a such that the second inclined surface 761 and the first inclined surface 622 are coincident with each other, so that the driven block 76 can be stably placed on the driving block 62.

When the driving block 62 moves along the first direction OX following the carriage 61, the driven block 76 slides the first inclined surface 762 along the first inclined surface 622 under the pushing of the first inclined surface 622, thereby causing the locking member 70 to be locked. Under the action of the limiting hole 78 and the limiting post 374, the rear housing 30 is stably pivoted, and the locking member 70 is lifted, thereby retracting the locking tongue 72 into the front housing 30. At the same time, the torsion spring 74 is pressed, so that the torsion spring 74 generates an elastic potential energy for pivoting the locking member 70 to the front housing 30, so that the second inclined surface 762 is also in contact with the first inclined surface 622 when the driving block 62 moves toward the OY direction. . That is, the latching member 70 cooperates with the first inclined surface 622 of the driving block 62 by the second inclined surface 762 of the driven block 76 to cause the driven block 76 to drive the locking member 70 to the front shell under the driving of the driving block 62. The body 30 or the rear housing 40 pivots such that the locking tongue 72 extends beyond the front housing 30 or retracts beyond the front housing 30.

The unlocking member 80 includes an arm 84 and a fixing portion 82 and an unlocking portion 86 that are disposed at opposite ends of the arm 84. The fixing portion 82 is provided with two fixing holes 81 for fixedly engaging with the two fixing posts 394 such that the unlocking member 80 is fitted on the inner surface 322. The end of the locking portion 64 is pressed against the unlocking portion 86, and the unlocking portion A contact portion 83 is protruded from a side of the back portion of the locking portion 64. The contact portion 83 can extend through the opening 392 and protrude out of the front housing 30. The unlocking portion 86 can lift the locking portion 64 under the pressing action of the contact portion 83, so that the locking block 390 can be released in the bayonet 640, while the sliding seat 61 is along the second elastic force of the elastic member 65. The direction OY is moved to reset the slider 60, thereby resetting the latch member 70. In the present embodiment, the arm 84 is made of an elastic material.

When the fixing device 20 is assembled: First, the locking device 50 is mounted on the inner and outer surfaces 320 of the front housing 30, that is, the sliding groove 612 of the sliding member 60 is sleeved in the guiding post 352, and the operating portion 63 is notched. The outer surface of the front housing 30 is exposed, and the bayonet 640 is located on the plane 391 of the locking block 390. The two pivots 71 of the locking member 70 are respectively pivoted in the two pivot holes 371 to pivot the locking member 70. Connected to the inner surface 322, and the limiting hole 78 sleeves the limiting post 374 therein, and the locking tongue 72 passes through the opening 372 of the locking portion 37 and is adjacent to the hook 31 adjacent to the opening 372. The second horizontal plane 763 is on the first horizontal plane 621a of the driving block, and the second inclined surface 762 is matched with the first inclined surface 622; the fixing hole 88 of the unlocking member 80 is fixed on the two fixing posts 394, and the contact portion 83 passes through the self-locking The opening 392 of the portion 39 extends beyond the front housing 30 on its outer surface 320, and the end of the locking portion 64 abuts against the side of the unlocking portion 86 that faces away from the contact portion 83. The front housing 30 is then engaged with the rear housing 40 such that the end portion 742b of the torsion spring 74 is supported on the rear housing 40 such that the torsion spring 74 is clamped between the locking member 70 and the rear housing 40. That is, the fixing device 20 is assembled.

Typically, the fixture 20 is secured to an object, such as behind a vehicle seat (not shown), at which point the front surface 322 of the fixture 20 is remote from the side of the object.

When the electronic device 10 is mounted on the assembled fixture 20: a push is applied Forced on the operating portion 63, the slider 60 is moved along the first direction OX until the locking block 390 is caught in the bayonet 640 of the latching portion 64, and at the same time, the driving block 62 also pushes the second block of the driven block 76. The two inclined surfaces 762 slide on the first inclined surface 622 to move the base block 764 from the first horizontal surface 621a of the support block 624a to the first horizontal surface 621b of the support block 624b, so that the locking member 70 rotates along the rearward housing 40, thereby driving The bolt 72 is integrally retracted from the opening 372 between the front housing 30 and the rear housing 40. Next, the card slot 140 of the electronic device 10 is in one-to-one correspondence with the hooks 31 on the outer surface 320, and the hooks 31 are slid into the corresponding card slots 140 to hook the electronic device 10, and the electronic device 10 will be squeezed. The contact portion 83 on the outer surface 320 is pressed such that the unlocking portion 86 pushes the locking portion 64 against the rear housing 40 in the direction of the rear housing 40, so that the bayonet 640 of the locking portion 64 and the lock block 390 Separating and releasing the sliding member 60, while the sliding member 60 is repositioned under the elastic potential of the elastic member 65, that is, in the second direction OY opposite to the first direction OX, and the elastic force of the locking member 70 in the torsion spring acts. The lowering, that is, the locking member 70 is rotated toward the front housing 30, so that the locking tongue 72 passes through the opening 372 again and is inserted into the card slot 140 corresponding to the hook 31 immediately adjacent thereto.

When the electronic device 10 is unloaded from the fixing device 20, a thrust is applied to the operating portion 64 to lock the slider 60 while the locking tongue 72 is integrally retracted from the opening 372 between the front housing 30 and the rear housing 40. Then, the fixing device 20 hook 31 is separated from the card slot 140 of the electronic device 10.

Since people can use the electronic device 10 to take a vehicle, the electronic device 10 can be installed in the vehicle by the fixing device 20, thereby bringing convenience to people.

Further, when the electronic device 10 is mounted, the user only needs to press the operation. After the slider 63 locks the slider 60, the hook 31 is slid into the slot 140 of the electronic device 10 to hook the electronic device 10, and the electronic device 10 presses the contact portion 83 to automatically insert the bolt 72 into the electronic device 10. In the card slot 140, thereby restricting the movement of the hooks 31 in the card slot 140, the electronic device 10 can be securely mounted thereon. In the case of unloading, it is only necessary to press the operation portion 63 again, and it is convenient to install and unload the electronic device 10.

Further, the sliding slot 612 of the sliding member 60 and the limiting hole 78 of the locking member 70 are respectively defined by the guiding post 352 and the limiting post 374 on the front housing 30, thereby defining the sliding member 60 and the lock to some extent. The direction of movement of the fastener 70 serves as a good guide.

Still further, since the second horizontal surfaces 621a and 621b of the driving block 62 cooperate with the second horizontal surface 763 of the driven block 76, the driven block 76 can be stably contacted at the driving block 62, and moved under the driving of the driving block 62. stable.

10‧‧‧Electronic devices

20‧‧‧Fixed devices

30‧‧‧ front housing

40‧‧‧ Rear housing

50‧‧‧Katch lock device

12‧‧‧ display

140‧‧‧ card slot

31‧‧‧ hook

60‧‧‧Sliding parts

70‧‧‧Locks

80‧‧‧Unlocking pieces

61‧‧‧Slide

62‧‧‧ drive block

63‧‧‧Operation Department

64‧‧‧Locking Department

33‧‧‧Installation Department

320‧‧‧ outer surface

322‧‧‧ inner surface

65‧‧‧Flexible components

612‧‧ ‧ chute

372‧‧‧ openings

OX‧‧‧ first direction

OY‧‧‧ second direction

640‧‧‧ bayonet

620‧‧‧ first diagonal block

624a, 624b‧‧‧ support blocks

622‧‧‧ first slope

621a, 621b‧‧‧ first water level

72‧‧‧Lock tongue

78‧‧‧Limited holes

73‧‧‧Installation shaft

74‧‧‧torsion spring

760‧‧‧second diagonal block

764‧‧‧ block

761‧‧‧second bevel

763‧‧‧Second water level

84‧‧‧ Arm

82‧‧‧ fixed department

86‧‧‧Unlocking Department

81‧‧‧Fixed holes

83‧‧‧Touching

350‧‧ ‧ gap

352‧‧‧ Guide column

a, b‧‧‧ straight line

390‧‧‧Lock block

374‧‧‧Limited column

394‧‧‧Fixed column

392‧‧‧Opening

391‧‧‧ Plane

393‧‧‧ sloped surface

1 is a perspective view of a preferred embodiment of a combination of a fixture and an electronic device.

2 is an exploded perspective view showing the combination of the fixing device and the fixed electronic device shown in FIG. 1.

Figure 3 is an exploded perspective view of the fixture shown in Figure 2.

Figure 4 is a partial exploded view of the fixture shown in Figure 3.

Figure 5 is another perspective exploded view of the fixture shown in Figure 4.

Figure 6 is a partial enlarged view of the fixing device shown in Figure 3.

10‧‧‧Electronic devices

20‧‧‧Fixed devices

140‧‧‧ card slot

31‧‧‧ hook

320‧‧‧ outer surface

Claims (16)

A fixing device comprising a housing and a latching device received in the housing, wherein the latching device comprises a sliding member, a locking member and an unlocking member, the sliding member comprising a sliding seat fixed relative to the housing and fixed An elastic member on the sliding seat and the housing, a locking portion disposed at one end of the sliding block, the sliding member further has a driving block, the driving block is provided with a first inclined surface; the locking member is pivoted at one end of the housing The upper side of the locking member is further provided with a driven block on the first inclined surface; the unlocking member is fixed on the housing, and an unlocking portion is disposed on the unlocking portion. Between the housing and the latching portion, a side of the unlocking portion opposite to the housing is further provided with a contact portion; the housing further defines an opening and an opening, the latch and the touch The portion protrudes outwardly from the opening through the opening and the opening; the housing further has a locking block corresponding to the locking portion, and when the sliding member slides toward the unlocking member, compressing the portion An elastic member and the lock block is engaged in the lock portion, and the first inclined surface pushes the driven block to make the lock Rotating relative to the housing to retract the locking tongue into the housing, and pressing the pressing portion causes the unlocking portion to lift the locking portion to disengage the locking block from the locking portion, and the sliding member is elastic The element is reset under the action of the element such that the bolt extends out of the housing. The fixing device of claim 1, wherein the driving block comprises a first inclined block extending from a side wall of the sliding block, and a top portion of the first inclined block gradually decreases toward the locking portion to form the first inclined surface. The fixing device of claim 2, wherein the driven block has a second inclined surface, and the inclined direction of the second inclined surface coincides with the inclined direction of the first inclined surface, and the driven block is provided by the second The inclined surface is located on the first inclined surface, and the second inclined surface slides on the first inclined surface when the sliding member slides The movable lock fastener rotates. The fixing device of claim 3, wherein the driving block further comprises two supporting blocks connected to opposite ends of the inclined block, the two supporting blocks having two parallel firsts connected to the first inclined surface level. The fixing device of claim 4, wherein the driven block further comprises a second horizontal plane connected to the second inclined surface, the second horizontal plane is located on one of the horizontal planes, and when the second inclined surface slides, Moving from one of the first horizontal planes to the other of the first horizontal plane. The fixing device of claim 1, wherein the sliding seat is provided with at least one guiding groove, and a guiding column is protruded from the corresponding position of the guiding groove, and the guiding column is received in the guiding groove. . The fixing device of claim 1, wherein the locking portion is provided with a bayonet, and the locking block can be locked in the bayonet. The fixing device of claim 1, wherein the locking member is provided with a limiting hole, and a position limiting column is arranged on the housing corresponding to the limiting hole, and the limiting column is received in the limit Within the hole. The fixing device of claim 1, wherein the locking device further comprises a torsion spring, the housing further comprising a stopping portion, the locking member further comprising a mounting shaft, the mounting shaft and the mounting shaft The driven blocks are respectively disposed on two sides of the locking member, and the torsion spring is sleeved on the mounting shaft, and one end thereof is hooked on the locking member, and the other end is restricted in the stopping portion. The fixing device of claim 1, wherein the housing is further provided with a hook adjacent to the opening such that the locking tongue is in close proximity to the hook when it passes through the opening. A combination of a fixture and an electronic device, comprising an electronic device and a fixture for securing the electronic device to other objects, The improvement is that the electronic device is provided with a plurality of card slots; the fixing device comprises a housing and a latching device received in the housing, the latching device comprises a sliding member, a locking member and an unlocking member, the sliding member comprises an opposite shell a sliding body, a resilient member fixed to the sliding seat and the housing, a locking portion disposed at one end of the sliding block, the sliding member further having a driving block, the driving block is provided with a first inclined surface; the locking buckle One end of the piece is pivotally disposed on the housing, and a locking tongue is disposed thereon. A locking block on the first inclined surface is further protruded from one side of the locking member; the unlocking member is fixed on the housing and is disposed thereon An unlocking portion is disposed between the housing and the locking portion, and a side of the unlocking portion opposite to the housing is further provided with a contact portion; the opening further defines an opening and an opening. The locking tongue and the contact portion respectively protrude outside the housing through the opening and the opening; the housing further has a locking block corresponding to the locking portion, when the sliding member is When the unlocking member slides, the elastic member is compressed and the lock block is engaged in the locking portion while the first slope is The moving block rotates the locking member relative to the housing to retract the locking tongue into the housing, and the pressing portion pushes the unlocking portion to lift the locking portion to lock the locking block with the locking portion The portion is disengaged, and the sliding member is reset by the elastic member, so that the locking tongue extends out of the housing and is inserted into one of the slots. The combination of the fixing device and the electronic device according to claim 11, wherein the housing is provided with the same number of hooks as the card slot, and the hooks respectively pass through the corresponding card slots to hook the electronic device. device. The combination of the fixing device and the electronic device according to claim 11, wherein the driving block comprises a first inclined block extending from a side wall of the sliding block, and a top portion of the first inclined block is gradually lowered toward the locking portion. The first slope. The combination of the fixing device and the electronic device according to claim 13 , wherein the driven block has a second inclined surface, and the inclined direction of the second inclined surface In accordance with the oblique direction of the first inclined surface, the driven block is located on the first inclined surface by the second inclined surface, and the second inclined surface slides on the first inclined surface when the sliding member slides to drive the locking member to rotate. . The combination of the fixing device and the electronic device according to claim 11, wherein the locking device further comprises a torsion spring, the housing further comprising a stopping portion, the locking member further comprising a mounting shaft, The mounting shaft and the driven block are respectively located on two sides of the locking member, and the torsion spring is sleeved on the mounting shaft, and one end thereof is hooked on the locking member, and the other end is restricted in the stopping portion. The combination of the fixing device and the electronic device according to claim 11, wherein the locking portion is provided with a bayonet, and the locking block can be locked in the bayonet.