TWI388210B - Lifting mechanism - Google Patents

Description

Lifting mechanism

The present invention relates to a lifting mechanism, and more particularly to a lifting mechanism for use in a liquid crystal display device.

The liquid crystal display device has the advantages of small size and light weight with respect to a CRT (Cathode Ray Tube) display, and has gradually become a mainstream display device for computers. In order to facilitate the viewing of the liquid crystal display in a preferred viewing angle range, the height of the liquid crystal display can be adjusted by providing a lifting mechanism on the liquid crystal display device.

As shown in FIG. 1 , a lifting mechanism 100 for adjusting the height of a liquid crystal display comprises: a lifting base 10, a lifting block 20 and a coil spring 30. A channel 11 is defined in the lifting base 10, and two opposite sliding rails 12 are disposed in the channel 11, and a fixing hole 13 is defined in a top end of the outer edge of the channel 11. The lifting block 20 can be inserted into the sliding rail 11 of the lifting base 10 and can slide relative to the lifting base 10. The top end of the lifting block 20 is provided with a connecting portion 21 connected to the liquid crystal display, and the bottom end of the lifting block 20 is provided with two screw holes 22 . One end of the coil spring 30 is wound around the shaft 31. The two ends of the shaft 31 are respectively provided with fixing holes 311. The screws 33 pass through the fixing holes 311 of the shaft 31 and the fixing holes 13 of the lifting base 10. The shaft 31 is locked to the lifting base 10. The other end of the coil spring 30 is provided with a through hole 32. The end of the coil spring 30 can be locked to the lifting block 20 by the screw 36 passing through the through hole 32 of the coil spring 30 and the screw hole 22 of the lifting block 20. .

When using, if you need to lower the height of the LCD screen, apply pressure to press down the LCD screen to lower the lifting block 20 to the proper position, then stop applying force, because the gravity of the liquid crystal display and the lifting block 20 can be related to the volume. Spring 30 back The compounding force and the friction between the lifting block 20 and the lifting base 10 are balanced, so that the lifting block 20 can be positioned at a predetermined position; if the liquid crystal display is to be raised, an upward thrust is applied to the lifting block 20, the thrust The restoring force of the coil spring 30 overcomes the gravity of the liquid crystal display panel and the lifting block 20 and the friction between the lifting block 20 and the lifting base 10, and raises the lifting block 20 to a predetermined position.

However, the lifting mechanism 100 adopts a chute coil spring lifting, and relies on the friction force between the coil spring 30 and the lifting block 20 and the lifting base 10 as the gravity balance force of the liquid crystal display screen, and the lifting block 20 is on the chute 12. The sliding movement realizes the lifting and lowering, so the lifting mechanism 100 can only perform the adjustment of the large distance, and the precise position adjustment of the liquid crystal display cannot be performed, and the two hands are required for the adjustment, which brings inconvenience to the user.

In view of the above, it is necessary to provide a lifting mechanism that can accurately adjust the position and is easy to operate.

A lifting mechanism comprising a bracket, a sliding member, a lifting adjustment assembly and a supporting adjustment assembly, the lifting adjustment assembly comprising a certain wheel, a pulling rope set, a lifting member, a box body, a rotating shaft gear member and a a coil spring, the fixed wheel is fixed on the bracket, the lifting member is fixed at one end to the bracket, and the other end is connected to the rope set, one end of the rope set passes through the fixed wheel, and is wound around the rotating shaft gear member, the rotating shaft gear The rotation adjustment member is coupled to the casing, the support adjustment assembly includes an active member, a follower member and a rotating member, the active member cooperates with the driven member to transmit rotation, and the rotating member is rotatably coupled to the casing, and Cooperating with the box to convert the rotation into a linear motion, the sliding member is slidably coupled to the bracket, and one end of the coil spring is connected to The other end of the sliding member is connected to the rotating shaft gear member and can drive the pulling rope group to automatically roll up.

The lifting mechanism can realize the large distance adjustment of the height of the liquid crystal display by rolling up or unwinding the pulling rope set and the telescopic expansion of the lifting piece by the coil spring, and can also be driven by the active part and the driven part, thereby driving The rotation of the rotating member and the movement of the upper and lower sides of the box realize fine adjustment of the height of the liquid crystal display. Only one hand needs to rotate the adjusting handle during the fine adjustment process, so the lifting mechanism can accurately adjust the position and is convenient to operate.

The lifting mechanism of the present invention is suitable for an electronic device with a display screen. In the preferred embodiment, the lifting mechanism applied to the liquid crystal display device will be described in detail as an example.

Referring to FIG. 2, in the liquid crystal display device, the elevating mechanism 60 is disposed between the liquid crystal display 50 and the base 70 for adjusting the height of the liquid crystal display panel 50.

Referring to FIG. 3, the lifting mechanism 60 includes a bracket 61, a sliding member 62, a lifting adjustment assembly 63, and a support adjustment assembly 68.

Referring to FIG. 4 and FIG. 5 simultaneously, the bracket 61 includes a lifting base 610, a fixing frame 611, two sliding rails 613 and four friction members 615. The lifting base 610 includes a rectangular back plate 6101 and two side baffles 6103. The two side baffles 6103 are formed by two opposite side vertical back plates 6101 of the back plate 6101. Two fixing holes 6104 are defined in the back plate 6101. Each side baffle 6103 is provided with two fixing holes 6106 near one end thereof, and a plurality of screw holes 6107 are opened in the middle of the side baffle 6103, and each side baffle 6103 is also provided with two solids near the other end thereof. Fixed hole 6108. The fixing frame 611 includes a body 6112 and two side baffles 6113. The two side baffles 6113 are formed by two opposite side vertical bodies 6112 of the body 6112. A through hole 6114 is defined in the middle of the main body 6112, and two fixing holes 6116 are defined in each of the side baffles 6113. The fixing holes 6116 on the fixing frame 611 and the fixing holes 6106 on the lifting base 610 are inserted through screws (not shown). The holder 611 is fixed to the lifting base 610. The sliding rail 613 includes a substrate 6130 and two side baffles 6131. The two side baffles 6131 are formed by two opposite vertical substrates 6130 of the substrate 6130. The substrate 6130 is provided with a plurality of fixing holes 6132, and the fixing holes 6132 are corresponding to the lifting and lowering. The screw hole 6107 on the side baffle 6103 of the seat 610 can be connected to the side baffle 6103 of the lift base 610 by screws (not shown). The friction member 615 has an elongated shape and is provided with six spherical protrusions (not shown). The friction member 615 can be snapped into the slide rail 613 and slid along with its side fence 6131.

The slider 62 includes a frame 621 and two sliding bars 622. The frame 621 includes a rectangular body 6212 and two side baffles 6214. The two side baffles 6214 are formed by two opposite side vertical bodies 6212 of the body 6212. Each of the side baffles 6214 defines a plurality of screw holes 6215. The side baffle 6214 is further provided with a connecting seat 6216 (shown in FIG. 5). The connecting seat 6216 extends from the vertical side baffle 6214 and points to the other side baffle 6214. A recess 6217 is defined in the top portion. Two recessed fixing holes (not shown) are formed in the recess 6217. The frame 621 further includes two connecting pieces 6213 extending from the body 6212 in opposite directions of the side fence 6214 for connecting the liquid crystal display panel 50 to the frame 621 of the slider 62. The sliding bar 622 includes a base body 6221 and two side baffles 6224. The two side baffles 6224 are formed by two opposite side vertical base bodies 6221 of the base body 6221. A plurality of fixing holes 6225 are formed in the base body 6221. The sliding bar 622 can be fixedly coupled to the frame 621 by a screw (not shown) passing through the screw hole 6215 of the frame 621 and the fixing hole 6225 of the sliding bar 622.

Referring to FIG. 5 and FIG. 6 , the lifting and adjusting assembly 63 includes a fixed wheel 630 , a pulling rope set 631 , a lifting and lowering member 632 , a positioning piece 633 , a screw 634 , a box body 635 , a shaft gear member 636 , and a control Piece 637 and a coil spring 638. The fixed wheel 630 includes a disc-shaped fixed wheel 6302 and a roller 6304 formed by a center of the fixed wheel 6302 extending along a central axis thereof. The roller 6304 is rotatable about a central axis thereof. A pin 6306 is disposed at the center of the fixed wheel 6302 and the roller 6304. The pin 6306 can sequentially pass through the through hole 6114 of the fixing frame 611 and the fixing hole 6104 of the lifting base 610 to fix the fixed wheel 630 to the bracket 61. The pull cord set 631 includes a first pull cord 6312 and a second pull cord 6314. Both ends of the first pull cord 6312 and the second pull cord 6314 are provided with a fixing cap 6316 for fixing the end of the pull cord set 631. . The lifting member 632 is a tension spring, which has a curved tubular shape and has a small opening at one end and a larger opening at the other end. One end of the smaller opening is fixedly connected to the first pulling cord 6312 of the string 631 by the fixing cap 6316. . The positioning piece 633 includes a body 6332 and a second blocking piece 6334 extending from two sides of the body 6332. A circular hole 6335 is defined in the center of the body 6332. The flap 6334 of the positioning piece 633 can be snapped into the lifting member 632 to be fixed to the lifting member 632. The screw 634 includes a threaded screw portion 6342 and an end portion 6344. The screw 634 can be passed through the circular hole 6335 of the setting piece 633 to fix the lifting piece 632 to the screw 634 by the positioning piece 633.

The casing 635 includes a main body portion 6350 and a cover portion 6351. The main body portion 6350 includes a bottom plate 6352 and two side baffles 6353, and two side baffles 6353 The bottom plate 6352 is formed by two opposite vertical vertical bottom plates 6352. A square through hole 6354 is defined in the bottom plate 6352. A through hole 6355 is defined in the upper side of the two side baffles 6353, and two side holes 6356 are respectively disposed adjacent to the bottom edge of the side baffle 6353. On one side of the main body portion 6350, the side baffle 6353 extends perpendicularly away from the other side baffle 6353 to extend two mutually perpendicularly connected limiting pieces (not labeled), one of which is parallel to the side baffle 6353 of the main body portion 6350. A through hole 6357 is defined in the limiting piece, and a fixing hole (not shown) is defined on the side baffle 6353 to which the limiting piece is attached. The cover portion 6351 includes a substrate 6358 and two side plates (not shown), and the two side plates are formed by extending the substrate 6358 opposite the vertical substrate 6358. A circular through hole 6359 is defined in a middle portion of the base plate 6358. Two side holes (not labeled) are formed on the side plate of the cover body portion 6351, and the through hole 6356 and the cover portion 6351 of the main body portion 6350 are inserted through the screw (not shown). The screw hole can connect the main body portion 6350 and the cover portion 6351.

The shaft gear member 636 includes a gear 6361 and a shaft portion 6362. The shaft portion 6362 is formed by extending from the middle of the gear 6361, and a through hole 6636 is defined in the center thereof, and a fixing hole (not labeled) is disposed near the gear 6361.

The control member 637 includes a spring 6372, a sleeve 6373, a link 6374 and two pins (not shown). The connecting rod 6374 is provided with two fixing holes 6377, and one end of the connecting rod 6374 is further provided with a slightly smaller end portion 6378 for snapping into the gear 6361 to prevent rotation thereof during fine adjustment. The control member 637 can be engaged between the side baffle 6353 of the main body portion 6350 of the casing 635 and the limiting piece by the pin penetrating into the fixing hole 6377 of the connecting rod 6374.

The coil spring 638 includes a hollow cylindrical crimping portion 6382 and a projecting end (not shown), and the extending end defines a fixing hole 6384. Curl 6382 set in turn The shaft gear member 636 is on the shaft portion 6362. One end of the coil spring 638 can be fixed to the connecting seat 6216 of the frame 621 by a screw (not shown) passing through the fixing hole 6384 of the coil spring 638 and the through hole (not shown) of the connecting seat 6216 of the frame 621.

7 and FIG. 8 , the support adjustment assembly 68 includes a fixing base 680 , an active member 681 , a follower 682 , a rotating member 683 , four connecting members 684 , two fixing rings 685 , an adjusting handle 686 , Two fixed cover 687. One end of the fixing base 680 is provided with two through holes 6801, 6802, and the other end of the fixing base 680 defines a fixing hole 6803 (see FIG. 8) corresponding to the through hole 6801 for the rotating member 683 to pass through. The fixing base 680 further includes two side baffles 6804, and two fixing holes 6805 are opened at one end thereof. A fixing plate 6806 formed by two connecting pieces (not shown) perpendicularly connected to each other is extended from the edge of the side baffle 6804. A semi-cylindrical recess 6807 is defined in a middle portion of the connecting piece perpendicular to the side bracket 6804 of the fixing base 680. A screw hole is formed on both sides of the recess 6807 (not shown), and another connecting piece of the fixing plate 6806 is also opened. There are screw holes (not shown).

The driving member 681 is a worm, and includes a threaded portion 6811 and a worm portion 6812 extending from the threaded portion 6811 to the two sides. The worm portion 6812 is connected to the threaded portion 6811 at one end thereof, and is away from one end of the threaded portion 6811. Thinner.

The follower 682 is a worm wheel, the circumferential side of which is a gear protrusion, and a through hole 6822 is formed in a middle portion thereof.

The rotating member 683 is a screw, and includes a threaded portion 6832 and a rod portion 6834 connected thereto. The rod portion 6834 is thin at both ends and has a thick central portion.

A through hole 6842 is defined in the middle of the connecting member 684 for the driving member 681 to pass through. A fixing hole 6844 is opened on both sides of the through hole 6842 of the connecting member 684.

The adjusting handle 686 has a disk shape, and a fixing hole 6862 is defined in a middle portion of the side of the driving member 681 for fixing the adjusting handle 686 to the driving member 681.

The fixing cover 687 is formed by two connecting pieces (not shown) which are perpendicularly connected to each other, and one of the connecting pieces is provided with a semi-cylindrical protrusion 6872 corresponding to the groove 6807 of the fixing plate 6806 on the fixing seat 680. Two screw holes 6873 are defined on two sides of the protrusions 6872, and a screw hole 6874 is also formed on the other connecting piece of the fixing cover 687. The protrusions 6872 of the fixing cover 687 correspond to the grooves 6807 on the fixing base 680, and the two are fitted to form a cylindrical through hole for the driving member 681 to pass through.

Please refer to Figures 3 to 9. During assembly, the slide rail 613 is first fixedly coupled to the side fence 6103 of the lift base 610 by screws, and the slide bar 622 of the slide member 62 is also fixedly coupled to the frame 621. The friction member 615 is snapped into the slide rail 613, and then the slide bar 622 is snapped into the slide rail 613, so that the side baffle 6224 of the slide bar 622 is engaged with the friction member 615, so that the slide member 62 is slidably coupled to the slide rail. 613. Then, the fixing frame 611 is fixed on the lifting base 610 of the bracket 61, and then the fixing hole 6104 of the lifting base 610 and the through hole 6114 of the fixing frame 611 are passed through the pin 6306 of the fixed wheel 630, thereby fixing the fixed wheel 630 to the bracket 61. And the fixed frame 611. One end of the first pull cord 6312 of the drawstring set 631 is then passed through the smaller opening of the lifter 632 and fixedly coupled to the lifter 632 by a fixed cap 6316. After the other end of the first pull cord 6312 bypasses the roller 6304 of the fixed wheel 630, it penetrates into one of the fixing holes of the groove 6217 of the connecting seat 6216 of the frame 621, by fixing the cap 6316 and the frame. The frame 621 is fixedly connected.

Then, the shaft portion 6362 of the shaft gear member 636 is passed through the curl portion 6382 of the coil spring 638, and one end of the second pull cord 6314 of the string assembly 631 is wound around the shaft portion 6362 of the shaft gear member 636, and is fixed by the fixing cap 6316. And a fixing hole of the shaft portion 6362 fixing one end of the second pulling rope 6314 to the rotating shaft gear member 636. Then, the shaft gear member 636 is inserted between the two side baffles 6353 of the main body portion 6350 of the casing 635, and is respectively passed through the through holes 6355 and the rotating shaft of the two side baffles 6353 of the main body portion 6350 by pins (not shown). The through hole 6364 of the shaft portion 6362 of the gear member 636 secures the shaft gear member 636 to the main body portion 6350 of the case 635. Then, the protruding end of the coil spring 638 is passed through the square through hole 6354 of the main body portion 6350 of the casing 635, and is fixedly connected to the connecting seat 6216 of the frame 621. Then, the other end of the second pull cord 6314 of the pull cord set 631 is also passed through the square through hole 6354 of the main body portion 6350 of the box body 635, and then the fixing hole 6316 and the fixing hole of the recess 6217 of the connecting seat 6216 are fixed. The drawstring set 631 is fixedly attached to the frame 621. Then, the spring 6372 of the receiving sleeve 6373 is pressed between the side baffle 6353 of the box 635 and the limiting piece, and then the connecting rod 6374 of the control member 637 is sequentially passed through the through hole 6357 of the limiting piece, the spring 6372 and The fixing hole corresponding to the through hole 6357 of the side baffle 6353 of the casing 635 is respectively inserted into the fixing hole 6377 of the connecting rod 6374 by the pin, so that the control member 637 is stuck to the side baffle 6353 of the main body portion 6350 of the casing 635. Between the limit piece and the piece. Further, the main body portion 6350 and the lid portion 6351 are fixedly connected.

Finally, the fixing base 680 is fixed on the lifting base 610 of the bracket 61, and the screw 634 is passed through the through hole 6801 of the fixing base 680 and the circular hole 6335 of the positioning piece 633, and then protrudes into the lifting member 632, and blocks the positioning piece 633. Piece 6334 stuck in liter In the lowering member 632, the positioning piece 633 is fixedly coupled to the lifting member 632. The end portion 6344 of the screw 634 is fixed to the fixing seat 680. Then, the threaded portion 6832 of the rotating member 683 is sequentially passed through the circular through hole 6359 of the cover portion 6351 of the casing 635 and the square through hole 6354 of the main body portion 6350, and then the rod portion 6834 of the rotating member 683 is respectively passed through the fixing seat. The through hole 6902 of the 680, the through hole 6822 of the follower 682, and the connecting member 684 lock the rotating member 683 on the fixing base 680.

The two ends of the driving member 681 are respectively passed through the fixing ring 685 and the connecting member 684, and then placed in the recess 6807 of the fixing plate 6806 so that the protrusion 6872 of the fixing cover 687 is engaged with the recess 6807 of the fixing plate 6806. The fixing cover 687 is locked with the fixing plate 6806 by screwing through the screw holes 6873 of the fixing cover 687 and the screw holes of the fixing plate 6806. The connecting member 684 is fixed to the fixing cover 687 and the fixing plate 6806 by screws, thereby connecting the driving member 681 to the fixing base 680. Finally, the adjusting handle 686 is fixedly connected to the two ends of the driving member 681 by the fixing holes 6862 thereon, so that the adjusting handle 686 can drive the driving member 681 to rotate. After the assembly is completed, the sliding member 62 can slide between the fixing frame 611 and the base 680 in the lifting base 610, and can realize large distance adjustment of the lifting height of the sliding member 62 and fine adjustment of a small range. The liquid crystal display panel 50 can be locked to the slider 62 by the locking member.

Referring to FIG. 2 to FIG. 9, when the height of the liquid crystal display panel 50 is adjusted by a large distance using the lifting mechanism 60, only a downward or upward force is applied to the liquid crystal display panel 50, so that the sliding member 62 is in the lifting base 610. slide. Since one end of the pull cord set 631 and the coil spring 638 is fixed to the frame 621 of the sliding member 62, and since one end of the lifting member 632 is fixed to the screw 634, the other end of the lifting member 632 is connected to the first pulling cord 6312 of the pulling cord set 631. Therefore, the lifting member 632 will The tension of the drawstring group 631 is extended and contracted by a large distance, and the coil spring 638 drives the pull cord set 631 around the shaft portion 6362 of the shaft gear member 636 to be rolled up or unfolded, thereby realizing the wide adjustment of the height of the liquid crystal display panel 50. .

The sliding member 62 slides in the vicinity of the predetermined position in the lifting base 610. When fine adjustment is required, the connecting rod 6374 of the control member 637 is pushed in toward the rotating shaft gear member 636, so that the end portion 6378 of the connecting rod 6374 is caught in the serrated protrusion of the gear 6361. To prevent rotation of the shaft gear member 636. The rotation adjustment handle 686 drives the driving member 681 to rotate. Since the follower member 682 is engaged with the driving member 681, the follower member 682 and the rotating member 683 will also rotate accordingly, and the box body 63 moves up and down due to the rotation of the rotating member 683, and moves up and down. The piece 632 is stretched and contracted by the pulling force of the string 631. Since the shaft gear member 636 cannot be rotated at this time, the minimum moving distance of the box body 63 and the cord set 631 is only the thread pitch of the rotating member 683, so that the fine adjustment of the height of the liquid crystal display panel 50 is achieved.

The lifting mechanism 60 of the present invention can drive the cable set 631 to be rolled up or unfolded by the coil spring 638, and the telescopic element 632 can be telescoped, thereby realizing the large distance adjustment of the liquid crystal display screen 50, and the follower member 682 and the active device can also be adopted. The pieces 681 are meshed with each other, thereby driving the rotating member 683 to rotate and the upper and lower movements of the box 63, thereby achieving fine adjustment of the height of the liquid crystal display panel 50. In the fine adjustment process, only one hand needs to rotate the adjusting handle 686, so the lifting mechanism 60 can be precisely adjusted position, easy to adjust and operate.

It can be understood that the active member 681 can also be other active components such as gears. The follower 682 can also be other followers such as gears, that is, the cooperation between the active member 681 and the driven member 682 can be converted by other rotations and linear motions. The transmission mechanism is realized.

It will be appreciated that the lift member 632 can also be other lift members, such as a slide rail assembly.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be equivalently modified or changed in the spirit of the invention. All should be included in the scope of the following patent application.

(this invention)

50‧‧‧LCD display

60‧‧‧ Lifting mechanism

61‧‧‧ bracket

610‧‧‧ Lifting seat

6101‧‧‧ Backplane

6103‧‧‧ side baffle

6104‧‧‧Fixed holes

6106, 6108‧‧‧ fixing holes

6107‧‧‧ screw holes

611‧‧‧Retaining frame

6112‧‧‧ Ontology

6113‧‧‧ side baffle

6114‧‧‧through hole

6116, 6132‧‧‧ fixing holes

613‧‧‧rails

6130‧‧‧Substrate

6131‧‧‧ side baffle

615‧‧‧ friction parts

62‧‧‧Sliding parts

621‧‧‧Frame

6212‧‧‧ Ontology

6213‧‧‧Connecting piece

6214‧‧‧ side baffle

6215‧‧‧ screw hole

6216‧‧‧Connector

6217‧‧‧ Groove

622‧‧‧Sliding strip

6221‧‧‧ base

6224‧‧‧ side baffle

6225‧‧‧Fixed holes

63‧‧‧ Lifting adjustment components

630‧‧‧ fixed wheel

6302‧‧‧Fixed wheel

6304‧‧‧Roller

6306‧‧‧ Pins

631‧‧‧Drawing rope set

6312‧‧‧First drawstring

6314‧‧‧Second drawstring

6316‧‧‧Fixed cap

633‧‧‧ Positioning film

6332‧‧‧ Ontology

6334‧‧‧Block

6335‧‧‧ round hole

634‧‧‧ screw

6342‧‧‧ Screw part

6344‧‧‧End

635‧‧‧ cabinet

6350‧‧‧ Main body

6351‧‧‧ Cover Body

6352‧‧‧floor

6353, 6355‧‧‧ side baffle

6354‧‧‧Square through hole

6356, 6357‧‧‧through holes

6358‧‧‧Substrate

6359‧‧‧Circular through hole

636‧‧‧Shaft gear parts

6361‧‧‧ Gears

6362‧‧‧Axis

6364‧‧‧through hole

637‧‧‧Controls

6372‧‧‧Spring

6373‧‧‧Sleeve

6374‧‧‧ Connecting rod

6377, 6384‧‧‧ fixing holes

6378‧‧‧End

638‧‧‧ coil spring

6382‧‧‧ Curl

68‧‧‧Support adjustment components

680‧‧‧ Fixed seat

6801, 6802‧‧‧through holes

6803, 6805‧‧‧ fixing holes

6804‧‧‧ side baffle

6806‧‧‧Fixed plate

6807‧‧‧ Groove

681‧‧‧Active parts

6811‧‧‧Threaded Department

6812‧‧‧ worm part

682‧‧‧Removable parts

6822, 6842‧‧‧through hole

683‧‧‧Rotating parts

6832‧‧‧Threading Department

6834‧‧‧ Rod

684, 688‧‧‧connectors

6844, 6862‧‧‧ fixing holes

685‧‧‧Fixed ring

686‧‧‧Adjustment handle

687‧‧‧Fixed cover

6872‧‧‧Protrusion

6873‧‧‧ screw hole

6874‧‧‧ screw holes

70‧‧‧Base

(known)

100‧‧‧ Lifting mechanism

10‧‧‧ Lifting seat

11‧‧‧ channel

12‧‧‧Chute

13‧‧‧Fixed holes

20‧‧‧lifting block

21‧‧‧Connecting Department

22‧‧‧ screw holes

30‧‧‧ coil spring

31‧‧‧ shaft

311‧‧‧Fixed holes

32‧‧‧through hole

33, 36‧‧‧ screws

1 is a perspective exploded view of a conventional lifting mechanism; FIG. 2 is a perspective view of a lifting mechanism of a preferred embodiment of the present invention applied to a liquid crystal display device; and FIG. 3 is a perspective assembled view of the lifting mechanism of the preferred embodiment of the present invention; Figure 4 is an exploded perspective view of the elevating mechanism of the preferred embodiment of the present invention; Figure 5 is an exploded perspective view of another embodiment of the elevating mechanism of the preferred embodiment of the present invention; 3 is an exploded perspective view of the lifting and adjusting assembly of the mechanism; FIG. 7 is an exploded perspective view of the supporting and adjusting assembly of the lifting mechanism of the preferred embodiment of the present invention; FIG. 8 is a perspective view of the fixing base of the lifting mechanism of the preferred embodiment of the present invention; A partial assembly view of the lifting mechanism of the preferred embodiment of the present invention.

60‧‧‧ Lifting mechanism

61‧‧‧ bracket

62‧‧‧Sliding parts

63‧‧‧ Lifting adjustment components

68‧‧‧Support adjustment components

Claims (10)

A lifting mechanism comprising a bracket and a sliding member, wherein the lifting mechanism further comprises a lifting adjustment assembly and a supporting adjustment assembly, the lifting adjustment assembly comprising a certain wheel, a pulling rope set, a lifting member, and a lifting mechanism a box body, a shaft gear member and a coil spring fixed to the bracket, the lifting member is fixed at one end to the bracket, and the other end is connected to the rope group, and one end of the rope group passes through the fixed wheel and is wound In the shaft gear member, the shaft gear member is rotatably coupled to the box body, the support adjusting assembly includes an active member, a follower member and a rotating member, and the driving member cooperates with the driven member to transmit rotation, the rotation The piece is rotatably coupled to the box and cooperates with the box to convert the rotation into a linear motion, the sliding member is slidably coupled to the bracket, one end of the coil spring is coupled to the slider, and the other end is coupled to the shaft gear The piece can be driven to automatically roll up the drawstring set. The lifting mechanism of claim 1, wherein the rotating member is a screw, the driving member is a worm, the driven member is a worm wheel, the rotating member is rotatably disposed on the bracket, and the slave is The moving member is fixed on the rotating member, and the rotation of the rotating member can move the box up and down, and the driving member meshes with the driven member. The lifting mechanism of claim 2, wherein the support adjustment component further comprises a fixing base and an adjusting handle, the fixing seat is fixedly connected with the lifting seat of the bracket, and the two ends of the driving component are fixedly connected to Adjusting the handle, the adjusting handle can drive the rotating member to rotate relative to the fixed seat, the rotating member is disposed on the fixing seat through the driven member and the box body, the driven member and the rotating member are engaged with each other and can drive the rotating member to rotate relative to the box body . The lifting mechanism of claim 1, wherein the bracket is further The utility model comprises a lifting seat, a fixing frame and two sliding rails, wherein the fixing frame is fixedly connected with the lifting seat, and the sliding rail is fixedly connected to the lifting seat. The lifting mechanism of claim 1, wherein the casing comprises a main body portion, a cover portion and at least one fixing member, the main body portion comprising a bottom plate and two side baffles, the side baffle The two opposite sides of the bottom plate are vertically extended. The side baffles are respectively provided with two through holes respectively adjacent to the bottom edge. The cover portion includes a substrate and two side plates. The side plates are formed by extending the opposite vertical substrates of the substrate. Two fixing holes are defined in the side plate of the body, and the fixing member passes through the fixing holes of the through hole of the main body portion and the cover portion to connect the main body portion and the cover portion. The lifting mechanism of claim 5, wherein the rotating shaft gear member comprises a gear, a shaft portion extending from an intermediate portion of the gear, and a pin, and a through hole is formed in the center of the shaft portion, the box body A through hole is further defined in the side baffle of the main body portion, and the pin passes through the through hole of the shaft portion and the through hole of the box body to fix the rotating shaft gear member to the box body. The lifting mechanism of claim 4, wherein the sliding member comprises a frame and two sliding bars, the frame comprises a rectangular body and two side baffles, the side baffles being opposite sides of the body The body is formed to extend vertically, wherein a side baffle is further provided with a connecting seat extending perpendicularly to the side baffle direction and pointing to the other side baffle, and the sliding bar is fixedly coupled to the frame and is engaged in the sliding rail. The lifting mechanism of claim 6, wherein the coil spring comprises a hollow cylindrical curling portion and a protruding end, the protruding end is fixed to the sliding member, and the curling portion is sleeved on the rotating shaft gear member. Shaft section. The lifting mechanism of claim 6 or 7, wherein the lifting member is a tension spring, and the pulling rope group comprises a first pulling rope and a second pulling rope. One end of the first pull cord is fixedly connected to the tension spring, and the other end thereof bypasses the fixed wheel of the lifting and adjusting assembly, and is fixed on the lifting seat of the sliding frame, and one end of the second pulling rope is fixed to the frame of the sliding member. The other end of the seat is connected to the shaft portion of the shaft gear member. The lifting mechanism of claim 5, wherein the lifting and lowering adjustment component further comprises a control member, the control member comprises a spring, a sleeve, a connecting rod and a pin, and one end of the connecting rod is opened Two fixing holes, the main body portion of the box body vertically extends outwardly on the side baffle of the through hole away from the bottom plate, and two mutually perpendicularly connected limiting pieces, one of which is opposite to the side baffle of the main body part A through hole is defined in the sheet, and a fixing hole corresponding to the through hole of the limiting piece is formed on the side baffle of the main body portion, and the spring receives the sleeve and presses against the side baffle and the limit of the box body. Between the sheets, the connecting rod passes through the through hole, the spring, the sleeve and the corresponding fixing hole on the side baffle of the box body, and the pin passes through the fixing hole of the connecting rod to clamp the control member Between the side baffle of the main body of the box and the flap.