TWI400026B - Vent covering assembly - Google Patents

Description

Vent shield

The invention relates to a venting shield.

The computer case is generally provided with dense ventilation holes on the front panel. When the computer is working, the vents help to dissipate heat from the computer case. However, the venting holes also allow dust outside the computer case to enter the inside of the computer case. In particular, a large amount of dust enters the computer case through the vent holes when the computer stops working without heat dissipation. This jeopardizes the electronic components inside the computer case and affects the life of the computer.

In view of the above, it is necessary to provide a vent shield that can be properly adjusted to effectively prevent dust.

A vent shielding device includes a fixing base, a sliding seat slidably mounted on the fixing base, an operating portion rotatably mounted on the sliding seat, and a shielding module mounted on the sliding seat. The fixing base is provided with a first rack and a first hooking piece. The sliding seat is provided with a gear set and a third hooking piece. The third hooking piece is away from the first hooking piece. a first rack, the gear set includes a first gear and a second gear disposed on the same shaft, the first gear meshes with the first rack, and the operating portion extends out of an arcuate second rack. The second rack is engaged with the second gear. The shielding module comprises a plurality of rotatable shielding sheets arranged side by side and a coupling body capable of rotating the shielding sheets simultaneously, the coupling body extending two second a hooking piece, the two hooking pieces are located between the first hooking piece and the third hooking piece, the first hooking piece and the same A first spring is connected between the two hooking pieces, and a second spring is connected between the third hooking piece and the second hooking piece adjacent thereto.

After being installed in an electronic device such as a computer, the vent shielding device of the present invention can control the closing, opening and opening angles and degrees of the mask by operating the operating portion, thereby preventing dust from entering at least when the computer stops working.

8‧‧‧Ventinel shelter

10‧‧‧ Fixed seat

30‧‧‧Sliding seat

50‧‧‧Shadow module

70‧‧‧Operation Department

90‧‧‧ Cover

11‧‧‧Ventilated area

12‧‧‧ slot

13‧‧‧Locker

14‧‧‧First rack

15‧‧‧Fixed body

17‧‧‧ Lead screw

151‧‧‧Support block

152‧‧‧force block

153, 520, 310‧‧‧ semi-cylindrical groove

16‧‧‧First hook piece

160, 550, 350‧ ‧ holes

51‧‧‧Mask

52‧‧‧pressure bars

53‧‧‧Connected shaft

511‧‧‧ tablets

512‧‧‧Shaft axis

513‧‧‧ linkage arm

54‧‧‧Second hook piece

540‧‧‧ hanging loop

55‧‧‧First fixed piece

31‧‧‧ side

39‧‧‧ beams

32‧‧‧First opening

33‧‧‧second opening

316‧‧‧corresponding hook

314‧‧‧ Third hook piece

315‧‧‧ hook

35‧‧‧Second fix

34‧‧‧ shaft

36‧‧‧torsion spring

361‧‧‧First foot

362‧‧‧second foot

37‧‧‧First gear

38‧‧‧second gear

311‧‧‧First avoidance hole

312‧‧‧Bumps

3120‧‧‧through hole

313‧‧‧Second avoidance hole

71‧‧‧Axis hole

72‧‧‧second rack

73‧‧‧ tongue

41‧‧‧First spring

42‧‧‧Second spring

91‧‧‧Semicircular trough

1 is a perspective view of a preferred embodiment of a venting shield of the present invention in a closed state.

Fig. 2 is an exploded perspective view of Fig. 1;

3 is a partially exploded enlarged view of the mask module of FIG. 2.

Figure 4 is an enlarged view of the slide base of Figure 2;

Figure 5 is a perspective view of the vent shielding device of Figure 1 in an open state.

Figure 6 is a perspective view of the vent shield of Figure 5 with the cover removed.

Referring to FIG. 1 and FIG. 2 , a preferred embodiment of the vent shielding device 8 of the present invention includes a fixing base 10 , a sliding seat 30 , a shielding module 50 , an operating portion 70 , and a cover 90 .

The holder 10 has a horizontally long rectangular shape. A rectangular ventilation zone 11 is arranged in the middle of the fixing base 10, and a plurality of longitudinal ventilation holes are laterally spaced apart in the ventilation zone 11. The fixing base 10 defines a slot 12 at an intermediate position near the right end thereof, and a locking member 13 is disposed in the slot 12. The fixing base 10 is provided with a first rack 14 on each of the front and rear sides of the slot 12. Two screw fixing bodies 15 are provided at intervals on the front and rear sides of the fixing base 10 for erecting the lead screw 17. Each of the screw fixing bodies 15 includes a support block 151 and a pressing block 152. The support blocks 151 are fixed to the respective side edges of the fixing base 10 for supporting the lead screw 17. The pressing block 152 can be screwed to the top of the support block 151 by screws for pressing the lead screw 17. Top of support block 151 and compacted A half cylindrical groove 153 is provided at the bottom of the block 152. After the compacting blocks 152 are locked to the support block 151, their semi-cylindrical grooves 153 merge into a cylindrical groove to match the shape of the lead screw 17. A first hooking piece 16 extends upward from the front and rear edges of the fixing base 10 respectively. Each of the first hooking pieces 16 is located between the two lead screw fixing bodies 15 of the respective side edges. Each of the first hooking pieces 16 defines a hole 160.

Referring to FIG. 3 , the shielding module 50 includes a plurality of mating sheets 51 arranged side by side, two pressing strips 52 , and two connecting shaft bodies 53 . Each of the masks 51 includes an elongated sheet 511. A convex shaft 512 extends from each end of each of the body 511, and the convex shaft 512 abuts the same side edge of the body 511. A connecting arm 513 extends perpendicularly from the end of each of the protruding shafts 512 away from the corresponding body 511. The linkage arm 513 located on the same side of the mask 51 is rotatably mounted to a coupling body 53. The second hook piece 54 extends from the middle of each of the coupling bodies 53 in a direction away from the cover 51. Each of the second hooking pieces 54 is provided with a hanging loop 540. The pressing strip 52 is used to press the convex shaft 512 of the mask 51 to the sliding seat 30. Each of the pressing bars 52 is provided with a plurality of semi-cylindrical grooves 520 matching the shape of the convex shaft 512 of the mask 51. One end of each of the pressing strips 52 extends from a first fixing piece 55, and the first fixing piece 55 defines a hole 550.

Referring to FIG. 4, the sliding seat 30 has an "H" shape, and includes two opposite side edges 31 and a beam 39 vertically connected between the middle sides of the two side edges 31. The sliding seat 30 defines a first opening 32 on the left side of the beam 39 and a second opening 33 on the right side of the beam 39. A portion of each side edge 31 adjacent to the first opening 32 defines a plurality of semi-cylindrical grooves 310 that match the shape of the convex axis 512 of the mask 51 for supporting the convex axis 512 of the mask 51. A hook 316 extends from one end of each side edge 31 adjacent to the first opening 32. A third hooking piece 314 is disposed on each of the side edges 31 of the corresponding hook 316. A hook 315 extends from the third hooking piece 314. Two sliding second fixing pieces 35 are respectively protruded from the sliding seat 30 at the intersection of the side edges 31 and the beam 39. The two second fixing pieces 35 open the coaxial holes 350. A shaft 34 is disposed in the second opening 33 adjacent to the beam 39. The rotating shaft 34 is parallel to the beam 39, and the two ends thereof are detachably mounted on the two side edges 31. Two torsion springs 36 are detachably sleeved on the rotating shaft 34. Each torsion spring 36 is provided with a first leg 361 and a second leg 362. The first leg 361 is fastened to the beam 39. Side of each side 31 A portion adjacent to the second opening 33 is provided with a gear set. The gear set includes a shaft (not shown) that is rotatably mounted to the respective side edges 31 and a first gear 37 and a second gear 38 that are coaxially mounted to the shaft. The second gear 38 is located in the second opening 33 , and the first gear 37 is located outside the second opening 33 and matches the first rack 14 of the fixing base 10 . Each of the side edges 31 corresponds to the lead screw fixing body 15 of the fixing base 10 to open two first avoiding holes 311. Each of the two side edges 31 is provided with two protrusions 312 between the two first avoidance holes 311 , and the two protrusions 312 respectively adjoin the two first avoidance holes 311 . The two protrusions 312 are provided with coaxial through holes 3120. Each of the side edges 31 defines a second avoidance hole 313 corresponding to the first hooking piece 16 of the fixing base 10.

The operation portion 70 is a rectangular parallelepiped hollow casing. The opposite ends of the operating portion 70 are provided with shaft holes 71 corresponding to the rotating shaft 34 on the sliding base 30. The opposite ends correspond to the second gears 38 on the sliding seat 30, respectively extending downwardly from an arcuate second rack 72. A bottom surface of the operating portion 70 extends downwardly from a tongue 73 (see FIG. 6). The tongue 73 is mated with the fastener 13 of the fixing base 10 and has such a fitting property that when an external force causes the tongue 73 to be pressed into the fastener 13, the tongue 73 is locked by the locking member 13; when the external force presses the tongue again At 73, the tongue 73 will be unlocked.

The cover 90 is used for covering the sliding seat 30, and its shape is adapted to the sliding seat 30, and is generally "H" shaped.

Referring to FIG. 6, when assembling, the sliding seat 30 is placed flat on the fixing base 10, so that the first opening 32 of the sliding seat 30 is aligned with the ventilation area 11 of the fixing base 10, and the screw fixing body 15 of the fixing base 10 is The first hooking piece 16 passes through the corresponding first and third avoiding holes 311 and 313 of the sliding seat 30, respectively. The two lead screws 17 are respectively passed through the through holes 3120 of the protrusions 312 of the side edges 31 of the sliding seat 30 and fixed to the corresponding fixing bodies 15 of the fixing base 10, so that the sliding seat 30 is slidably mounted through the lead screw 17. In the fixed seat 10. At this time, the first gear 37 of the slide base 30 meshes with the corresponding first rack 14 of the mount 10. The shielding module 50 is placed in the first opening 32 of the sliding seat 30 such that the convex axis 512 of the shielding 51 is supported in the corresponding semi-cylindrical groove 310 of the sliding seat 30. The two pressure fixing strips 52 are pressed to the convex shafts 512 on both sides of the shielding sheet 51, and the first fixing pieces 55 of each pressing strip 52 are inserted into the corresponding two parts of the sliding seat 30. Between the two fixing pieces 35. One end of the pressing bar 52 can be fixed to the sliding seat 30 by a pin (not shown) or a screw (not shown) passing through the hole 350 of the second fixing piece 35 and the hole 550 of the first fixing piece. The other end of the pressing bar 52 is hooked by the corresponding hook 316 of the sliding seat 30. Then, the pressing strip 52 is fixed to the sliding seat 30, so that the mask 51 of the shielding module 50 is pressed against the sliding seat 30 through the pressing strip 52. A first spring 41 is coupled between each of the first hooking pieces 16 of the fixing base 10 and the second hooking piece 54 of the shielding module 50 which is closest to the first hooking piece 16. When connecting, the two ends of the first spring 41 are respectively hooked on the holes 160 of the corresponding first hooking piece 16 and the hanging ring 540 of the corresponding second hooking piece 54. A second spring 42 is coupled between each of the third hooking pieces 314 of the sliding base 30 and the second hooking piece 54 of the shielding module 50 that is closest to the third hooking piece 314. When connecting, the two ends of the second spring 42 are respectively hooked on the hook 315 of the corresponding third hooking piece 314 and the hanging ring 540 of the corresponding second hooking piece 54. The operating portion 70 is rotatably mounted on the rotating shaft 34 of the sliding seat 30 through the shaft hole 71 (this process needs to first separate the rotating shaft 34 from the sliding seat 30), so that the second leg 362 of the torsion spring 36 abuts the operating portion. The bottom surface of the 70 is inserted into the operating portion 70, and the second rack 72 of the operating portion 70 is engaged with the corresponding second gear 38 of the sliding seat 30. Finally, the cover 90 is closed to the sliding seat 30.

The bottom surface of the cover 90 defines a plurality of semicircular grooves 91 matching the shape of the convex shaft 512 of the mask 51 to further press the mask 51. In addition, the cover 90 is mainly used to cover the sliding seat 30 to make the vent shielding device 8 of the present invention more beautiful. In other embodiments, the cover 90 can be omitted.

Referring to FIG. 1 , FIG. 5 and FIG. 6 , in use, if the tongue 73 is locked by the fastener 13 ( FIG. 1 ), the mask 51 is in a closed state. At this time, the first spring 41 and the second spring 42 . Not stretched. The operating portion 70 is pressed to unlock the tongue 73, and the elastic force of the torsion spring 36 causes the operating portion 70 to rotate counterclockwise (as shown in FIGS. 5 and 6) for a short distance, and the tongue 73 is ejected from the fastener 13. The operation unit 70 is manually operated to rotate the operation unit 70 counterclockwise. The second rack 72 of the operating portion 70 rotates the gear set by meshing with the second gear 38 of the gear set. The rotation of the gear set causes its first gear 37 to roll to the left along the first rack 14 of the mount 10 such that the slide seat 30 in which the gear set is located slides to the left. The sliding seat 30 slides to the left, so that the shielding module 50 mounted on the sliding seat 30 slides leftward with the sliding seat 30 as a whole, and also causes the third hooking piece 314 of the movable 30 to be away from the first hooking piece of the fixing base 10. 16 causes the first spring 41 and the second spring 42 to be stretched. Wherein, since the first spring 41 and the second spring 42 correspond to a series relationship, the distance between the coupling body 53 connected in series between the first spring 41 and the second spring 42 to the left is smaller than the first spring 41 and the second The total elongation of the spring 42 (i.e., the distance the slider 30 moves to the left). That is, the coupling body 53 is actually moved to the right relative to the sliding base 30, so that the shielding piece 51 of the shielding module 50 is driven by the coupling body 53 to rotate clockwise with respect to the sliding seat 30, thereby making the shielding piece 51 is gradually opened. In addition, since there is a static frictional force between the sliding seat 30 and the fixed seat 10, the static frictional force is greater than the resultant force of the first spring 41, the second spring 42, and the torsion spring 36, which allows the sliding seat 30 to be slid to any position and then positioned. Thus, the operator can control the closing, opening, and opening angles and degrees of the mask 51 of the mask module 50 by operating the operation portion 70.

It should be noted that when the matte 51 is rotated, the coupling body 53 will float up and down due to the rotation of the mask 51. The invention adopts a flexible connection manner of the first spring 41 and the second spring 42, which can cancel the influence of the vertical and downward floating of the coupling body 53.

In other embodiments, a torsion spring 36 can be omitted.

In other embodiments, all of the torsion springs 36 can be omitted. Thus, when the operation unit 70 is opened, it is only required to be manually operated by the operator. In addition, the tongue 73 and the lock 13 can be omitted at the same time.

In other embodiments, a coupling body 53 and corresponding first and second springs 41, 42 may be omitted.

In other embodiments, a gear set and corresponding first and second racks 14, 72 may be omitted.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above is only a preferred embodiment of the present invention, and it is not possible to limit the patent application of the present invention. range. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧ Fixed seat

30‧‧‧Sliding seat

50‧‧‧Shadow module

70‧‧‧Operation Department

13‧‧‧Locker

14‧‧‧First rack

15‧‧‧Fixed body

17‧‧‧ Lead screw

16‧‧‧First hook piece

51‧‧‧Mask

52‧‧‧pressure bars

53‧‧‧Connected shaft

54‧‧‧Second hook piece

316‧‧‧corresponding hook

314‧‧‧ Third hook piece

35‧‧‧Second fix

37‧‧‧First gear

38‧‧‧second gear

72‧‧‧second rack

73‧‧‧ tongue

41‧‧‧First spring

42‧‧‧Second spring

Claims (8)

A vent shielding device includes a fixing base, a sliding seat slidably mounted on the fixing base, an operating portion rotatably mounted on the sliding seat, and a shielding module mounted on the sliding seat a fixed rack is provided with a first rack and a first hooking piece. The sliding seat is provided with a gear set and a third hooking piece. The third hooking piece is away from the first hooking piece. The first rack, the gear set includes a first gear and a second gear disposed on the same shaft, the first gear meshes with the first rack, and the operating portion extends an arc-shaped second rack. The second rack is engaged with the second gear. The shielding module includes a plurality of rotatable shielding sheets arranged side by side and a coupling body capable of driving the shielding sheets to rotate at the same time. The coupling body extends two a second hooking piece, the two hooking pieces are located between the first hooking piece and the third hooking piece, and the first hooking piece and the second hooking piece adjacent thereto are connected A spring, a second spring is connected between the third hook piece and the second hook piece adjacent thereto. The vent shielding device according to claim 1, wherein the fixing seat is fixed with a locking member, and the operating portion extends a tongue matched with the locking member, and when an external force is applied, the tongue is pressed into When the fastener is locked, the tongue is locked by the lock, and when the external force presses the tongue again, the tongue is unlocked. The venting device of claim 2, wherein the operating portion is rotatably mounted on the sliding seat through a rotating shaft, the rotating shaft is sleeved with a torsion spring, and the torsion spring is provided with a first leg. And a second leg fixed to the sliding seat, the second leg acting on the operating portion. The vent shielding device of claim 1, wherein the fixing seat is provided with two parallel screw rods, and the two screw rods are respectively disposed on opposite sides of the sliding seat, so that the sliding seat can be along The lead screw slides. The venting device of claim 1, wherein each of the shielding modules comprises a body, and opposite ends of each of the bodies respectively extend a convex axis, the sliding seat opening a plurality of The semi-cylindrical groove is matched with the convex shaft shape, and the convex shaft is supported in the corresponding semi-cylindrical groove of the sliding seat. The venting device of claim 5, wherein the shielding module further comprises two pressing bars, each of which has a plurality of semi-cylindrical grooves matching the shape of the convex axis of the shielding plate. The pressing strips are respectively fixed on the convex shafts on the same side of the shielding module through the semi-cylindrical grooves thereof. The vent shielding device of claim 6, wherein one end of each pressing strip extends a first fixing piece, and the first fixing piece of each pressing piece defines a hole, and the sliding seat corresponds to Each of the first fixing pieces protrudes from two spaced second fixing pieces, the two fixing pieces open coaxial holes, and the first fixing pieces are respectively inserted between the corresponding two second fixing pieces, and the pins or screws pass through The holes of the two second fixing pieces and the holes of the first fixing piece fix the pressing bar to the sliding seat. The ventilation hole shielding device of claim 5, wherein each of the convex shafts on the same side of the shielding module vertically extends a linkage arm, and the linkage arm is rotatably mounted on the coupling body .