CN215596768U

CN215596768U - Telescopic platform for laser television

Info

Publication number: CN215596768U
Application number: CN202121068364.5U
Authority: CN
Inventors: 王广文
Original assignee: Fuding Nail Intelligent Technology Co ltd
Current assignee: Fuding Nail Intelligent Technology Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-01-21
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a telescopic platform for a laser television, which comprises a shell; a driving unit provided on the housing; and a first support plate and a second support plate provided on the driving unit; the driving unit is configured to drive the second support plate to reciprocate along a second direction N while driving the first support plate to reciprocate along a first direction M, so that the first support plate and the second support plate simultaneously extend or retract relative to the housing, and the first direction M is different from the second direction N. The thickness of the extension platform can be reduced by using only one driving unit, so that the energy consumption can be saved; when the telescopic platform is used for a laser television, one of the first supporting plate and the second supporting plate is firstly arranged on a desk or other fixed platforms, and then the projection end is placed on the other of the first supporting plate and the second supporting plate; when the projection end is not used, the first supporting plate and the second supporting plate can be retracted simultaneously, so that the occupied area of the telescopic platform is reduced.

Description

Telescopic platform for laser television

Technical Field

The utility model relates to the field of laser television accessories, in particular to a telescopic platform for a laser television.

Background

The laser television projects a picture comparable to that of a television by adopting a laser light source and matching with an optical screen. The size of the picture projected onto the optical screen by the projection end of the laser television is related to the distance from the projection end to the optical screen, and the larger the picture to be projected onto the optical screen is, the longer the distance from the projection end to the optical screen is required to be. However, by placing the projection end on a platform with a large area, it is not practical for a room with a small space to obtain a large picture projected on the optical screen by moving the projection end to adjust the relative distance between the projection end and the optical screen. Therefore, a common solution is to place the projection end on a two-way telescopic table, adjust the distance from the projection end to the optical screen by adjusting the telescopic length of the two-way telescopic table, and keep the two-way telescopic table in a retracted state when the laser television is not used, so that the area of the space occupied by the two-way telescopic table is minimized, and the space of a room is not occupied too much.

However, in order to achieve the extension and contraction of the conventional bidirectional extension and contraction table in two directions, a plurality of sets of driving units are generally required, and the thickness of the bidirectional extension and contraction table is inevitably increased by the plurality of sets of driving units, and the energy consumption is high during use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of high thickness and high energy consumption of a general bidirectional telescopic table, the utility model provides a telescopic platform for a laser television according to one aspect of the utility model.

The telescopic platform for the laser television (hereinafter referred to as telescopic platform) comprises a shell; a driving unit provided on the housing; and a first support plate and a second support plate provided on the driving unit; wherein, drive unit sets up to drive the second backup pad and removes towards second direction N when driving first backup pad and removing towards first direction M, drive unit still sets up to drive the second backup pad and remove towards deviating from second direction N when driving first backup pad and removing towards deviating from first direction M, first direction M is the relative casing of first backup pad orientation direction, second direction N is the relative casing of second backup pad orientation direction of stretching out, and first direction M is different from second direction N.

Therefore, when the bidirectional telescopic platform is used, the first supporting plate can be driven to move towards the first direction M through the driving unit, the second supporting plate is driven to move towards the second direction N, the two supporting plates are driven to move towards different directions through the single driving unit relative to the shell, the problem that the thickness of the bidirectional telescopic platform is thick due to the fact that the driving units are used can be solved, and energy consumption can be saved.

In some embodiments, the first direction M and the second direction N are parallel to a support surface of at least one of the first support plate and the second support plate, and the first direction M and the second direction N are oppositely disposed. Due to the fact that the first direction M and the second direction N are arranged oppositely, when at least one of the extension amount of the first support plate relative to the housing in the first direction M and the extension amount of the second support plate relative to the housing in the second direction N is a limit value (namely, the maximum extension amount), the distance from the end of the first support plate facing away from the second support plate to the end of the second support plate facing away from the first support plate (namely, the extension amount of the telescopic platform) is maximum.

In some embodiments, the first and second support plates are disposed on oppositely disposed first and second sides of the housing. Therefore, the first support plate and the second support plate can be prevented from obstructing the movement of the other support plate when moving simultaneously.

In some embodiments, the housing comprises a frame surrounded by circumferential side walls to form a receiving chamber for receiving the drive unit; the first cover plate is arranged between the frame and the first supporting plate, and the second cover plate is arranged between the frame and the second supporting plate; the first cover plate is provided with a first through groove for communicating the accommodating cavity with the outside, and the first through groove is arranged in parallel to the first direction M so that the first supporting plate positioned outside the accommodating cavity can be connected with the driving unit positioned inside the accommodating cavity; the second cover plate is provided with a second through groove for communicating the accommodating cavity with the outside, and the second through groove is parallel to the second direction N, so that a second supporting plate located outside the accommodating cavity can be connected with a driving unit located inside the accommodating cavity. Therefore, the probability that an external article touches the driving unit can be reduced, and the driving unit can operate smoothly. Preferably, at least one of the first cover plate and the second cover plate is detachably connected to the housing. Therefore, the processing of the first through groove of the first cover body and the second through groove of the second cover body is facilitated, and the replacement and maintenance of the driving unit are facilitated.

In some embodiments, the first support plate and the second support plate have the same maximum protrusion with respect to the housing. Thereby, the extension amount of the telescopic platform can be maximized.

In some embodiments, the maximum retraction amount of the first support plate and the second support plate relative to the shell is equal, and the shell is arranged such that when the first support plate and the second support plate are in the maximum retraction position, the projection planes of the first support plate and the second support plate, which are perpendicular to the support plane, are coincident; and the projection plane of the shell perpendicular to the supporting surface is positioned in the projection plane of the first supporting plate and the second supporting plate perpendicular to the supporting surface, or the projection plane of the first supporting plate and the second supporting plate perpendicular to the supporting surface is positioned in the projection plane of the shell perpendicular to the supporting surface.

Therefore, when the first supporting plate and the second supporting plate of the telescopic platform are at the maximum retraction position, namely when the telescopic platform is in a retraction state, the occupied area of the telescopic platform is the minimum.

In some embodiments, the drive unit comprises a first mobile drive module comprising a first rotary motor disposed on the housing; a driving gear coaxially connected to a rotating shaft of the first rotating motor; the first driven gear and the second driven gear are arranged on two sides of the driving gear side by side and are meshed with the driving gear; the first screw rod is coaxially connected with the first driven gear, and the second screw rod is coaxially connected with the second driven gear; the first nut is matched on the first screw rod, and the second nut is matched on the second screw rod; the first nut is arranged on the first supporting plate and can move along the extending direction of the first screw rod when the first screw rod rotates around the axis of the first screw rod; the second nut is arranged on the second support plate and is arranged to be capable of moving in the extending direction of the second screw rod when the second screw rod rotates around the axis of the second screw rod.

Therefore, when the first rotating motor drives the driving gear to rotate, the driving gear drives the first driven gear and the second driven gear to synchronously and reversely rotate, so that the moving directions of the first nut and the second nut are opposite, and the first supporting plate and the second supporting plate which are respectively connected to the first nut and the second nut are driven to synchronously and reversely move; when the moving direction of the first supporting plate and the second supporting plate needs to be adjusted, the direction of the first rotating motor for driving the driving gear to rotate is adjusted.

In some embodiments, the first screw rod and the second screw rod are arranged side by side, and a plane formed by the axes of the first screw rod and the second screw rod is parallel to the supporting surface of any one of the first supporting plate and the second supporting plate. Thereby, the thickness of the telescopic platform can be as thin as possible.

In some embodiments, the drive unit further comprises a first movement guide module and a second movement guide module; the first nut is arranged on the first support plate through the first movable guide module, wherein a first guide rail of the first movable guide module is arranged on the shell and is parallel to the first screw rod, and the first nut and the first support plate are arranged on a first slide block, which is matched with the first guide rail, of the first movable guide module; the second nut is arranged on the second support plate through the second movable guiding module, wherein a second guide rail of the second movable guiding module is arranged on the shell and is parallel to the second screw rod, and the second nut and the second support plate are arranged on a second sliding block, matched with the second guide rail, of the second movable guiding module.

Therefore, the first support plate can be guaranteed to move along the first screw rod through the first moving guide module, and the second support plate can be guaranteed to move along the second screw rod.

In some embodiments, the driving unit includes a second movement driving module including a second rotating motor provided on one side of the housing; a first belt wheel coaxially connected to a rotating shaft of the second rotating motor; a second belt pulley pivotally connected to a side of the housing opposite to the side provided with the second rotating motor; the synchronous belt is sleeved on the first belt wheel and the second belt wheel, and the synchronous belt between the first belt wheel and the second belt wheel is arranged along a first direction M; wherein, first backup pad is established on the synchronous belt of one of them side of first band pulley and second band pulley, and the second backup pad is established on the synchronous belt of the opposite side of first band pulley and second band pulley to when making the second rotate motor drive first band pulley and rotate, can drive the direction reverse motion of establishing first backup pad and second backup pad on the synchronous belt along the hold-in range extension between first band pulley and the second band pulley.

Therefore, when the second rotation drives the first belt wheel to rotate, the first belt wheel drives the second belt wheel to synchronously rotate through the synchronous belt, the first supporting plate and the second supporting plate connected to the synchronous belt between the first belt wheel and the second belt wheel synchronously move in the opposite direction along with the movement of the synchronous belt connected with the first belt wheel and the second belt wheel, and when the moving direction of the first supporting plate and the second supporting plate needs to be adjusted, the first belt wheel is driven to rotate by adjusting the first rotating motor.

In some embodiments, the driving unit further comprises a third movement guide module and a fourth movement guide module; the first support plate is arranged on a synchronous belt on one side of the first belt wheel and the second belt wheel through a third mobile guide module, wherein a third guide rail of the third mobile guide module is arranged on the shell and is parallel to the extending direction of the synchronous belt between the first belt wheel and the second belt wheel, and the first support plate is arranged on a third slide block, which is matched with the third guide rail, of the third mobile guide module; the second support plate is arranged on the synchronous belt on the opposite side of the first belt wheel and the second belt wheel through the fourth mobile guide module, wherein a fourth guide rail of the fourth mobile guide module is arranged on the shell and is parallel to the extending direction of the synchronous belt between the first belt wheel and the second belt wheel, and the second support plate is arranged on a fourth sliding block, matched with the fourth guide rail, of the fourth mobile guide module.

From this, can guarantee the stability that first backup pad and second backup pad removed along the hold-in range between first band pulley and the second band pulley through third removal direction module and fourth removal direction module respectively.

In some embodiments, there are two sets of each of the third and fourth mobile guide modules; the two groups of third mobile guide modules and the two groups of fourth mobile guide modules are respectively arranged on two opposite sides of the second mobile driving module, one group of third mobile guide modules is positioned on one side of one group of fourth mobile guide modules, which faces the second mobile driving module, and the other group of third mobile guide modules is positioned on one side of the other group of fourth mobile guide modules, which faces away from the second mobile driving module.

Therefore, the stability of the first support plate and the second support plate moving along the synchronous belt between the first belt wheel and the second belt wheel can be further improved through the two groups of third moving guide modules and fourth moving guide modules respectively; moreover, since one group of the third mobile guide modules is located on one side of one group of the fourth mobile guide modules facing the second mobile drive module, and the other group of the third mobile guide modules is located on one side of the other group of the fourth mobile guide modules facing away from the second mobile drive module, that is, the third mobile guide modules and the fourth mobile guide modules are alternately arranged, the third mobile guide modules and the fourth mobile guide modules can ensure equal stability of the movement of the first support plate and the second support plate.

Drawings

Fig. 1 is a schematic structural diagram illustrating a first support plate and a second support plate of a telescopic platform for a laser television according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a telescopic platform for a laser television according to an embodiment of the present invention, in which a first support plate and a second support plate are extended;

fig. 3 is a schematic structural view of the telescopic platform for a laser television provided with the driving unit of the first embodiment, omitting the first cover plate, the first support plate and the second support plate;

fig. 4 is a schematic structural diagram of another view angle of the telescopic platform for the laser television shown in fig. 3;

fig. 5 is a schematic structural diagram of another view angle of the telescopic platform for the laser television shown in fig. 3;

FIG. 6 is a schematic cross-sectional view of the telescopic platform for a laser TV shown in FIG. 5 along the A-A direction;

fig. 7 is a schematic structural diagram of another view angle of the telescopic platform for the laser television shown in fig. 3;

FIG. 8 is a schematic cross-sectional view taken along the direction B-B of the telescopic platform for a laser TV shown in FIG. 6;

fig. 9 is a schematic structural view of the telescopic platform for a laser television provided with the driving unit of the second embodiment, omitting the second cover plate, the first support plate and the second support plate;

fig. 10 is a schematic structural view showing the retraction of the first support plate and the second support plate of the telescopic platform for a laser television provided with the driving unit of the second embodiment;

FIG. 11 is a schematic cross-sectional view of the telescopic platform for a laser TV shown in FIG. 10, taken along the direction C-C;

fig. 12 is a schematic view of another perspective of the telescopic platform for a laser tv shown in fig. 10;

FIG. 13 is a schematic cross-sectional view of the telescopic platform for a laser TV shown in FIG. 12, taken along the direction D-D;

reference numerals: 20. a housing; 21. a frame; 211. an accommodating chamber; 212. a socket; 22. a first cover plate; 221. a first through groove; 23. a second cover plate; 231. a second through groove; 201. a first side; 202. a second side; 30. a drive unit; 31. a first mobile driving module; 311. a first rotating electric machine; 312. a driving gear; 313. a first driven gear; 314. a second driven gear; 315. a first lead screw; 316. a second lead screw; 317. a first nut; 318. a second nut; 32. a first mobile guidance module; 321. a first guide rail; 322. a first slider; 33. a second mobile guidance module; 331. a second guide rail; 332. a second slider; 34. a second mobile driving module; 341. a second rotating electric machine; 342. a first pulley; 343. a second pulley; 344. a synchronous belt; 35. a third mobile guide module; 351. a third guide rail; 352. a third slider; 36. a fourth mobile guidance module; 361. a fourth guide rail; 362. a fourth slider; 41. a first support plate; 42. a second support plate; 400. a support surface; 50. a support; 61. a first connecting plate; 62. a second connecting plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 to 13 schematically show a telescopic platform for a laser television according to an embodiment of the present invention.

The telescopic platform for the laser television includes a housing 20 (shown in fig. 2 to 9, 11 and 13), a driving unit 30, a first support plate 41 and a second support plate 42 (shown in fig. 2, 5 to 9, 11 and 13); wherein the driving unit 30 is mounted on the housing 20; the first support plate 41 and the second support plate 42 are mounted on the driving unit 30; wherein the driving unit 30 is configured to drive the second support plate 42 to move towards the second direction N while driving the first support plate 41 to move towards the first direction M, the driving unit 30 is further configured to drive the second support plate 42 to move away from the second direction N while driving the first support plate 41 to move away from the first direction M, the first direction M is a direction in which the first support plate 41 extends relative to the housing 20, and the direction away from the first direction M is a direction in which the first support plate 41 retracts relative to the housing 20; the second direction N is a direction in which the second support plate 42 extends relative to the housing 20, and a direction away from the second direction N is a direction in which the second support plate 42 retracts relative to the housing 20; the first direction M is different from the second direction N.

Thereby, the expansion of the telescopic platform can be realized by driving the first support plate 41 to move in the first direction M and simultaneously driving the second support plate 42 to move in the second direction N by the driving unit 30 (refer to fig. 2 and 5 to 8); the retractable platform can also be retracted by driving the first support plate 41 to move towards the side away from the first direction M and simultaneously driving the second support plate 42 to move towards the side away from the second direction N by the driving unit 30 (see fig. 1, 10 and 12). When the telescopic platform is used for a laser television, one of the first support plate 41 and the second support plate 42 is firstly installed on a table or other fixable tables, then the projection end is placed on the other one of the first support plate 41 and the second support plate 42, the first support plate 41 and the second support plate 42 are driven to simultaneously extend and retract through the driving unit 30, and the position of the projection end can be adjusted; when the projection end is not used, the first support plate 41 and the second support plate 42 can be driven to retract simultaneously by the driving unit 30 to reduce the floor area of the telescopic platform. Because only one driving unit 30 is used in the driving process, the problem that the thickness of the bidirectional telescopic platform is thick due to the use of a plurality of driving units 30 can be avoided, and energy consumption can be saved.

In a preferred embodiment, as shown with reference to fig. 2, the first direction M and the second direction N are parallel to the support surface 400 of at least one of the first support plate 41 and the second support plate 42, and the first direction M and the second direction N are oppositely disposed. So that the distance from the end of the first support plate 41 facing away from the second support plate 42 to the end of the second support plate 42 facing away from the first support plate 41 is the largest when at least one of the amount of protrusion of the first support plate 41 in the first direction M with respect to the housing 20 and the amount of protrusion of the second support plate 42 in the second direction N with respect to the housing 20 is the limit value.

Fig. 3 to 8 schematically and schematically show one embodiment of the driving unit 30, in this embodiment, the driving unit 30 includes a first moving driving module 31, the first moving driving module 31 includes a first rotating motor 311, a driving gear 312, a first driven gear 313 and a second driven gear 314 engaged with the driving gear 312, a first lead screw 315 and a first nut 317 fitted to each other, and a second lead screw 316 and a second nut 318 fitted to each other; wherein the first rotating motor 311 is mounted on the housing 20; the driving gear 312 is coaxially connected to the rotating shaft of the first rotating motor 311; the first driven gear 313 and the second driven gear 314 are arranged side by side on both sides of the driving gear 312; the first lead screw 315 is coaxially connected with the first driven gear 313; the second screw rod 316 is coaxially connected with the second driven gear 314; the first nut 317 is connected to the first support plate 41, and the first nut 317 is provided to be movable in the extending direction of the first lead screw 315 when the first lead screw 315 rotates about its own axis; the second nut 318 is connected to the second support plate 42, and the second nut 318 is provided to be movable in the extending direction of the second lead screw 316 when the second lead screw 316 is rotated about its own axis.

Therefore, when the first rotating motor 311 drives the driving gear 312 to rotate, the driving gear 312 drives the first driven gear 313 and the second driven gear 314 to synchronously rotate in opposite directions, so that the first nut 317 can move in the first direction M and the second nut 318 can move in the second direction N; the first nut 317 may be moved to a side away from the first direction M while the nut is moved to a side away from the second direction N; the movement of the first and

second support plates

41 and 42 connected thereto is achieved by the movement of the first and

second nuts

317 and 318. Also, the direction in which the first rotation motor 311 drives the driving gear 312 to rotate may be adjusted to adjust the moving direction of the first and

second support plates

41 and 42.

In a preferred embodiment, referring to fig. 3, the first screw 315 is arranged side by side with the second screw 316, and the plane formed by the axes of the first screw 315 and the second screw 316 is parallel to the support surface 400 of either one of the first support plate 41 and the second support plate 42. So that the thickness of the telescopic platform can be as thin as possible.

In some preferred embodiments, and with continued reference to fig. 3, the drive unit 30 further includes a first mobile guidance module 32 and a second mobile guidance module 33; the first nut 317 is connected to the first support plate 41 through the first moving guide module 32; the second nut 318 is coupled with the second support plate 42 through the second moving guide module 33; wherein, the first moving guide module 32 includes a first guide rail 321 and a first module which are adapted to each other; the second moving guide module 33 includes a second guide rail 331 and a second module which are fitted to each other; the first guide rail 321 is installed on the housing 20 and is arranged parallel to the first lead screw 315, the first nut 317 and the first support plate 41 are connected to a first slider 322 of the first moving guide module 32, which is adapted to the first guide rail 321, specifically, the first nut 317 and the first slider 322 are connected through a first connection plate 61, and the first support plate 41 can be directly connected to the first slider 322; the second guide rail 331 is installed on the housing 20 and is disposed parallel to the second lead screw 316, the second nut 318 and the second support plate 42 are installed on a second slider 332 of the second moving guide module 33, which is adapted to the second guide rail 331, specifically, the second nut 318 and the second slider 332 may be connected by a second connection plate 62, and the second support plate 42 may be directly connected to the second slider 332. Thereby, it is possible to secure the stability of the movement of the first support plate 41 along the first lead screw 315 and the stability of the movement of the second support plate 42 along the second lead screw 316 by the first movement guide module 32.

Further, with continued reference to fig. 3, two sets of first and second mobile guiding

modules

32 and 33 are provided; the two sets of first moving guide modules 32 are respectively disposed on two opposite sides of the first moving drive module 31, the two sets of second moving guide modules 33 are respectively disposed on two opposite sides of the first moving drive module 31, one set of first moving guide modules 32 is located on one side of one set of second moving guide modules 33 facing the first moving drive module 31, and the other set of first moving guide modules 32 is located on one side of the other set of second moving guide modules 33 facing away from the first moving drive module 31. So as to further improve the stability of the first support plate 41 and the second support plate 42 moving along the first lead screw 315 and the second lead screw 316 through the two sets of the first moving guide module 32 and the second moving guide module 33, respectively; moreover, since one of the groups of first movement guide modules 32 is located on the side of one of the groups of second movement guide modules 33 facing the first movement drive module 31, and the other group of first movement guide modules 32 is located on the side of the other group of second movement guide modules 33 facing away from the first movement drive module 31, that is, the first movement guide modules 32 and the second movement guide modules 33 are alternately arranged, the first movement guide modules 32 and the second movement guide modules 33 can be equalized in ability to ensure the stability of the movement of the first support plate 41 and the second support plate 42.

Fig. 9 to 13 schematically and first show another embodiment of the driving unit 30, in which the driving unit 30 includes a second movement driving module 34, and the second movement driving module 34 includes a second rotating motor 341, a first pulley 342, a second pulley 343, and a timing belt 344; wherein the second rotating motor 341 is installed on one side of the housing 20; the first pulley 342 is coaxially connected to a rotating shaft of the second rotating motor 341; the second pulley 343 is pivotably connected on the side of the housing 20 opposite to the side where the second rotating motor 341 is provided; the synchronous belt 344 is sleeved on the first belt wheel 342 and the second belt wheel 343, so that when the first belt wheel 342 rotates, the second belt wheel 343 is driven to synchronously rotate through the synchronous belt 344, and the synchronous belt 344 between the first belt wheel 342 and the second belt wheel 343 is arranged along a first direction M; the first support plate 41 is connected to a timing belt 344 on one side of the first pulley 342 and the second pulley 343, and the second support plate 42 is connected to a timing belt 344 on the opposite side of the first pulley 342 and the second pulley 343, so that when the second rotating motor 341 drives the first pulley 342 to rotate, the first support plate 41 and the second support plate 42 provided on the timing belt 344 can be driven to move in opposite directions in a direction in which the timing belt 344 between the first pulley 342 and the second pulley 343 extends.

Therefore, when the first pulley 342 is driven to rotate by the second rotation, the first support plate 41 and the second support plate 42 connected to the timing belt 344 between the first pulley 342 and the second pulley 343 are moved in opposite directions in synchronization with the movement of the timing belt 344 connecting the first pulley 342 and the second pulley 343, and when the moving direction of the first support plate 41 and the second support plate 42 needs to be adjusted, the direction in which the first pulley 342 is driven to rotate by the first rotation motor 311 may be adjusted.

In a preferred embodiment, as shown with reference to fig. 9, the driving unit 30 further comprises a third movement guide module 35 and a fourth movement guide module 36; the first support plate 41 is connected to the timing belt 344 on one side of the first and

second pulleys

342 and 343 through the third moving guide module 35, and the second support plate 42 is connected to the timing belt 344 on the opposite side of the first and

second pulleys

342 and 343 through the fourth moving guide module 36; the third moving guide module 35 includes a third guide rail 351 and a third slider 352, which are adapted to each other, and the fourth moving guide module 36 includes a fourth guide rail 361 and a fourth slider 362, which are adapted to each other; a third guide rail 351 is installed on the housing 20 and is parallel to the extending direction of the timing belt 344 between the first pulley 342 and the second pulley 343, and a first support plate 41 is installed on the third slider 352; the fourth guide 361 is installed on the housing 20 in parallel to the extending direction of the timing belt 344 between the first pulley 342 and the second pulley 343, and the second support plate 42 is installed on the fourth slider 362. Thereby, the stability of the movement of the first support plate 41 along the timing belt 344 between the first pulley 342 and the second pulley 343 may be ensured by the third moving guide module 35, and the stability of the movement of the second support plate 42 along the timing belt 344 between the first pulley 342 and the second pulley 343 may be ensured by the fourth moving guide module 36.

Further, as shown in fig. 9, two sets of the third moving guide module 35 and the fourth moving guide module 36 are provided; two sets of third moving guide modules 35 are respectively disposed at two opposite sides of the second moving drive module 34, two sets of fourth moving guide modules 36 are respectively disposed at two opposite sides of the second moving drive module 34, one set of third moving guide modules 35 is located at one side of one set of fourth moving guide modules 36 facing the second moving drive module 34, and the other set of third moving guide modules 35 is located at one side of the other set of fourth moving guide modules 36 facing away from the second moving drive module 34. To further improve the stability of the movement of the first and

second support plates

41 and 42 along the timing belt 344 between the first and

second pulleys

342 and 343 by the two sets of third and fourth moving

guide modules

35 and 36, respectively; moreover, since one set of the third movement guiding modules 35 is located on the side of one set of the fourth movement guiding modules 36 facing the second movement driving module 34, and the other set of the third movement guiding modules 35 is located on the side of the other set of the fourth movement guiding modules 36 facing away from the second movement driving module 34, that is, the third movement guiding modules 35 and the fourth movement guiding modules 36 are alternately arranged, the third movement guiding modules 35 and the fourth movement guiding modules 36 can be made to have equal capability of ensuring the stability of the movement of the first supporting plate 41 and the second supporting plate 42.

Regardless of the specific embodiment of the driving unit 30, in order to avoid the first support plate 41 and the second support plate 42 from obstructing the movement of each other when they move simultaneously, it is preferable to refer to fig. 1, 2, 6 and 7 that the first support plate 41 and the second support plate 42 are disposed on the first side 201 and the second side 202 of the housing 20, which are disposed opposite to each other.

In a preferred embodiment, the housing 20 includes a frame 21, a first cover plate 22, and a second cover plate 23; wherein the frame 21 is enclosed by circumferential side walls and has a receiving cavity 211 (shown in fig. 3 and 9) for receiving the driving unit 30; the first cover 22 is provided between the frame 21 and the first support plate 41, and the second cover 23 is provided between the frame 21 and the second support plate 42 (see fig. 6, 8, 11, and 13); a first through groove 221 (shown in fig. 5, 6, 10 and 11) for communicating the accommodating cavity 211 with the outside is integrally formed or machined on the first cover plate 22, and the first through groove 221 is arranged parallel to the first direction M so that the first support plate 41 located outside the accommodating cavity 211 can be connected with the driving unit 30 located inside the accommodating cavity 211 (shown in fig. 7, 8, 12 and 13); a second through groove 231 for communicating the accommodating chamber 211 with the outside is integrally formed or machined on the second cover plate 23, and the second through groove 231 is disposed parallel to the second direction N, so that the second support plate 42 located outside the accommodating chamber 211 can be connected to the driving unit 30 located inside the accommodating chamber 211. Therefore, the probability that an external article touches the driving unit 30 can be reduced, and smooth operation of the driving unit 30 can be ensured. Preferably, at least one of the first cover plate 22 and the second cover plate 23 is detachably coupled to the housing 20. This facilitates the processing of the first through groove 221 of the first cover and the second through groove 231 of the second cover, and also facilitates the replacement and maintenance of the drive unit 30.

In the preferred embodiment, the maximum extension of the first support plate 41 and the second support plate 42 relative to the housing 20 is equal. To maximize the amount of extension of the telescoping platform.

In a preferred embodiment, the maximum retraction amount of the first support plate 41 and the second support plate 42 relative to the housing 20 is equal, and the housing 20 is configured such that the projection planes of the first support plate 41 and the second support plate 42 perpendicular to the support plane 400 coincide when the first support plate 41 and the second support plate 42 are in the maximum retraction position; and the projection plane of the case 20 perpendicular to the supporting surface 400 is located in the projection plane of the first and second supporting

plates

41 and 42 perpendicular to the supporting surface 400, or the projection plane of the first and second supporting

plates

41 and 42 perpendicular to the supporting surface 400 is located in the projection plane of the case 20 perpendicular to the supporting surface 400. So that the first support plate 41 and the second support plate 42 of the telescopic platform occupy the smallest floor area when in the maximum retracted position, i.e. when the telescopic platform is in the retracted state.

Preferably, in order to facilitate the connection of the telescopic platform with the outside, as shown in fig. 1, a bracket 50 is connected to one of the first support plate 41 and the second support plate 42, and a through hole for a screw to pass through is integrally formed or machined on the bracket 50.

Preferably, as shown in fig. 2, in order to facilitate the placement of the projection end, the plane of at least one of the first support plate 41 and the second support plate 42 is arranged in a rectangular shape. Further, in order to minimize the floor space when the telescopic platform is in the retracted state, referring to fig. 1 and 3, the cross sections of the first support plate 41, the second support plate 42 and the housing 20 are set to be the same or similar.

In the utility model, the installation or connection can be realized by a common detachable connection mode in the prior art, and also can be realized by a common non-detachable connection mode in the prior art; wherein, the common detachable connection mode is screw connection, key connection or pin connection; common non-detachable connections are welding or gluing.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. A telescopic platform for a laser television, comprising:

a housing;

a drive unit provided on the housing;

and a first support plate and a second support plate provided on the driving unit; wherein,

the drive unit sets up to drive when the drive first backup pad removes towards first direction M the second backup pad removes towards second direction N, drive unit still sets up to drive first backup pad removes towards deviating from first direction M the drive when the second backup pad removes towards deviating from second direction N, first direction M is first backup pad is relative the direction that the casing stretches out, second direction N is the second backup pad is relative the direction that the casing stretches out, just first direction M is different from second direction N.

2. The telescopic platform for a laser television set according to claim 1, wherein the first direction M and the second direction N are parallel to a support surface of at least one of the first support plate and the second support plate, and the first direction M and the second direction N are opposite to each other.

3. The telescopic platform for a laser television according to claim 2, wherein the first and second support plates are provided at first and second oppositely disposed sides of the housing.

4. The telescopic platform for a laser television according to claim 3, wherein the housing comprises:

a frame surrounded by circumferential side walls to form a containing cavity for containing the driving unit;

the first cover plate is arranged between the frame and the first supporting plate, and the second cover plate is arranged between the frame and the second supporting plate; wherein,

the first cover plate is provided with a first through groove which is used for communicating the accommodating cavity with the outside, and the first through groove is arranged in parallel to the first direction M, so that a first supporting plate positioned outside the accommodating cavity can be connected with a driving unit positioned inside the accommodating cavity;

a second through groove for communicating the accommodating cavity with the outside is formed in the second cover plate, and the second through groove is parallel to the second direction N, so that a second support plate positioned outside the accommodating cavity can be connected with a driving unit positioned inside the accommodating cavity;

at least one of the first cover plate and the second cover plate is detachably connected with the frame;

the maximum extending amount of the first supporting plate and the maximum extending amount of the second supporting plate relative to the shell are equal.

5. The telescopic platform for a laser television according to any one of claims 2 to 4, wherein the driving unit comprises a first moving driving module, and the first moving driving module comprises:

a first rotating motor provided on the housing;

a driving gear coaxially connected to a rotating shaft of the first rotating motor;

the first driven gear and the second driven gear are arranged on two sides of the driving gear side by side and are meshed with the driving gear;

the first screw rod is coaxially connected with the first driven gear, and the second screw rod is coaxially connected with the second driven gear;

and a first nut adapted on the first lead screw and a second nut adapted on the second lead screw; wherein,

the first nut is arranged on the first supporting plate and can move along the extending direction of the first screw rod when the first screw rod rotates around the axis of the first screw rod;

the second nut is arranged on the second support plate and can move along the extending direction of the second screw rod when the second screw rod rotates around the axis of the second screw rod.

6. The telescopic platform for a laser television as claimed in claim 5, wherein the first lead screw and the second lead screw are arranged side by side, and a plane formed by axes of the first lead screw and the second lead screw is parallel to a supporting surface of any one of the first supporting plate and the second supporting plate.

7. The telescopic platform for a laser television according to claim 6, wherein the driving unit further comprises a first moving guide module and a second moving guide module;

the first nut is arranged on a first support plate through the first movable guide module, wherein a first guide rail of the first movable guide module is arranged on the shell and is parallel to the first screw rod, and the first nut and the first support plate are arranged on a first slide block, which is matched with the first guide rail, of the first movable guide module;

the second nut passes through the second removes the direction module and establishes in the second backup pad, wherein, the second guide rail that the second removed the direction module is established on the casing, and be on a parallel with the second lead screw sets up, second nut and second backup pad are established the second remove the direction module with on the second slider of second guide rail adaptation.

8. The telescopic platform for a laser television according to any one of claims 2 to 4, wherein the driving unit comprises a second moving driving module, and the second moving driving module comprises:

a second rotating motor provided on one side of the housing;

a first belt wheel coaxially connected to a rotating shaft of the second rotating motor;

a second belt pulley pivotably connected to a side of the housing opposite to the side where the second rotating motor is provided;

the synchronous belt is sleeved on the first belt wheel and the second belt wheel, and the synchronous belt between the first belt wheel and the second belt wheel is arranged along a first direction M; wherein,

first backup pad is established on the synchronous belt of one of them side of first band pulley and second band pulley, the second backup pad is established on the synchronous belt of the opposite side of first band pulley and second band pulley, so that the second rotates motor drive when first band pulley rotates, can drive and establish first backup pad and second backup pad on the synchronous belt are followed the direction reverse motion that the synchronous belt between first band pulley and the second band pulley extends.

9. The telescopic platform for a laser television according to claim 8, wherein the driving unit further comprises a third moving guide module and a fourth moving guide module;

the first support plate is arranged on a synchronous belt on one side of the first belt wheel and the second belt wheel through the third mobile guide module, a third guide rail of the third mobile guide module is arranged on the shell and is parallel to the extending direction of the synchronous belt between the first belt wheel and the second belt wheel, and the first support plate is arranged on a third slide block, matched with the third guide rail, of the third mobile guide module;

the second support plate is arranged on the synchronous belt on the opposite side of the first belt wheel and the second belt wheel through the fourth mobile guide module, wherein a fourth guide rail of the fourth mobile guide module is arranged on the shell and is parallel to the extending direction of the synchronous belt between the first belt wheel and the second belt wheel, and the second support plate is arranged on a fourth sliding block, matched with the fourth guide rail, of the fourth mobile guide module.

10. The telescopic platform for a laser television as claimed in claim 9, wherein there are two sets of the third and fourth moving guide modules;

the two groups of third movable guide modules and the two groups of fourth movable guide modules are respectively arranged on two opposite sides of the second movable driving module, one group of third movable guide modules is positioned on one side, facing the second movable driving module, of one group of fourth movable guide modules, and the other group of third movable guide modules is positioned on one side, facing away from the second movable driving module, of the other group of fourth movable guide modules.