CN112545177B - Prevent hidden flat display screen support protection device that falls - Google Patents
Prevent hidden flat display screen support protection device that falls Download PDFInfo
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- CN112545177B CN112545177B CN202011605574.3A CN202011605574A CN112545177B CN 112545177 B CN112545177 B CN 112545177B CN 202011605574 A CN202011605574 A CN 202011605574A CN 112545177 B CN112545177 B CN 112545177B
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- fixedly connected
- groove
- plate
- desktop
- lifting
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/02—Tables or desks for office equipment, e.g. typewriters, keyboards with vertical adjustable parts
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/04—Tables or desks for office equipment, e.g. typewriters, keyboards characterised by means for holding or fastening typewriters or computer equipment
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- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a falling-prevention hidden type flat panel display screen supporting and protecting device, which comprises a desktop, wherein the lower side of the desktop is fixedly connected with a fixed shell, a rotary reset device is arranged in the desktop, the rotary reset device comprises a desktop through groove communicated with the upper end surface and the lower end surface of the desktop, a rotating shaft is rotatably connected between the front end wall and the rear end wall of the desktop through groove, and a torsion spring is fixedly connected between the rotating shaft and the desktop, the device can lift a lifting platform to the same horizontal position as the desktop through a lifting device when in use, fix a flat panel in the device through a clamping and adjusting device, simultaneously reach the optimal angle with the human visual line, and when the desktop moves and the flat panel does not shake carefully, protective cover plates at two sides can rapidly fix the edge of the flat panel so as to avoid the danger caused by the falling of the flat panel, and meanwhile, the rotary cover plates and the desktop are positioned on the same horizontal plane when not in use, the integration of the desktop is increased, and the aesthetic feeling is improved.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a falling-prevention hidden type flat panel display screen supporting and protecting device.
Background
Tablet support is good multiple on the market, and the purpose is in seeing the shadow and using for the convenience people, but present tablet mobile phone support generally can not fix the desktop, can cause when the desktop takes place to rock to fall, further causes electronic product's damage, simultaneously, owing to charge often when using and use, can connect the condition of taking the dull and stereotyped condition of pulling together in the condition of carelessness, simultaneously, these supports can be difficult to accomodate under the condition of not using, and are very inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a falling-prevention hidden type flat panel display screen supporting and protecting device, and solves the problem.
The invention is realized by the following technical scheme.
The invention relates to a falling-prevention hidden type flat panel display screen supporting and protecting device, which comprises a desktop, wherein the lower side of the desktop is fixedly connected with a fixed shell, a rotary reset device is arranged in the desktop, the rotary reset device comprises a desktop through groove communicated with the upper end surface and the lower end surface of the desktop, a rotating shaft is rotatably connected between the front end wall and the rear end wall of the desktop through groove, a torsion spring is fixedly connected between the rotating shaft and the desktop, a sector gear is fixedly connected onto the rotating shaft, a rotary cover plate is fixedly connected onto the sector gear, a knock pin groove and a gear groove positioned on the lower side of the knock pin groove are arranged on the right end wall of the desktop through groove, a knock pin is slidably connected into the knock pin groove, a knock pin spring is fixedly connected between the knock pin and the desktop, an upper rotating shaft and a lower rotating shaft positioned on the lower side of the upper rotating shaft are rotatably connected into the gear groove, the upper rotating shaft is fixedly connected with an upper gear meshed with the sector gear, when the rotating cover plate rotates from a horizontal state to a vertical state, the sector gear is firstly meshed with the upper gear, when the rotating cover plate presses the ejector pin, the sector gear is separated from the upper gear, the lower rotating shaft is fixedly connected with a transmission gear meshed with the upper gear, the lower rotating shaft is fixedly connected with an upper belt pulley positioned at the rear side of the transmission gear, a lifting device is arranged in the fixed shell and comprises a lifting groove with an upward opening, the lifting groove is communicated with the table top through groove, the front end wall and the rear end wall of the lifting groove are provided with lifting chutes, lifting toothed plates are connected in the lifting chutes in a sliding manner, lifting springs are fixedly connected between the lifting toothed plates and the fixed shell, and the left end surface and the right end surface of each lifting toothed plate are designed, the right end face of the lifting toothed plate is meshed with a left gear, a left rotating shaft is fixedly connected with the axis of the left gear and rotatably connected with the fixed shell, a left belt pulley is fixedly connected onto the left rotating shaft, a right rotating shaft which is located on the right side of the left rotating shaft and on the lower side of the lower rotating shaft is rotatably connected between the front end wall and the rear end wall of the lifting groove, a right belt pulley is fixedly connected onto the right rotating shaft, a lower transmission belt is fixedly connected between the right belt pulley and the left belt pulley, a lower belt pulley is fixedly connected onto the right rotating shaft, an upper transmission belt is fixedly connected between the lower belt pulley and the upper belt pulley, a limiting plate sliding groove communicated with the lifting sliding groove is formed in the front end wall and the rear end wall of the lifting groove, a limiting plate is slidably connected into the limiting plate sliding groove, and a limiting plate spring is fixedly connected between the limiting plate and the fixed shell, when the limiting plate is located at the right limit position, the up-and-down movement of the lifting tooth plate can be limited.
Preferably, fixedly connected with lift platform on the lifting teeth board, be equipped with in the lift platform and press from both sides tight adjusting device, it includes the ascending swivelling chute of opening to press from both sides tight adjusting device, fixedly connected with motor in the front end wall of swivelling chute, the front side power connection of motor has the power shaft, fixedly connected with angle adjusting plate on the power shaft, be equipped with the ascending dashpot of opening in the angle adjusting plate, sliding connection has the buffer board in the dashpot, the buffer board with equal fixedly connected with buffer spring between the front and back left and right sides end wall of dashpot, be equipped with the ascending holding tank of opening in the buffer board, the equal fixedly connected with electro-magnet of inner wall about the holding tank, sliding connection has the magnet piece that sets up about two in the holding tank, magnet piece and homonymy fixedly connected with electromagnetic spring between the electro-magnet.
Preferably, the upper end face of the buffer plate is provided with two reset chutes which are bilaterally symmetrical about the accommodating groove, the reset chutes are connected with sliding plates in a sliding mode, the sliding plates are fixedly provided with protective cover plates positioned on the upper sides of the buffer plates, the sliding plates and the buffer plates are fixedly connected with reset springs, the lower end walls of the reset chutes are provided with limit pin chutes, the limit pin chutes are connected with limit pins extending upwards in a sliding mode, and the limit pins and the buffer plates are fixedly connected with the limit pin springs.
Preferably, be equipped with the ascending fixed slot of opening in the rotatory apron, the right-hand member wall of fixed slot is equipped with flexible groove, flexible inslot sliding connection has and extends to expansion plate in the fixed slot, the expansion plate with fixedly connected with expanding spring between the rotatory apron, the terminal surface all is equipped with the spout around the rotatory apron, the front and back end wall that the desktop led to the groove all is equipped with the slider spacing groove, sliding connection has the slider in the spout, the slider with the first slider spring of fixedly connected with between the rotatory apron.
Preferably, the expansion plate with fixedly connected with second slider spring between the slider, when the expansion plate is in left extreme position, two slider department state of keeping away from each other, the knock pin with fixedly connected with stay cord between the limiting plate, when the knock pin is located right extreme position, the limiting plate is located right extreme position equally and the restriction the reciprocating of lifting tooth plate, the spacer pin with fixedly connected with spacing stay cord between the angle adjusting plate, when the buffer board is in when taking place the displacement in the angle adjusting plate, spacing stay cord pulling the spacer pin removes downwards.
The invention has the beneficial effects that: this device can rise lift platform to the same horizontal position with the desktop through elevating gear when using, through pressing from both sides tight adjusting device, fix the flat board and reach the angle best with people's line of vision simultaneously in the device, and take place to remove and when the flat board rocks carelessly at the desktop, the protection apron of both sides can be fixed dull and stereotyped edge rapidly, avoid the flat board to drop and cause danger, rotatory apron is located same horizontal plane with the desktop when not using simultaneously, at the integrative nature that increases the desktop, promote the aesthetic feeling.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the embodiment of the present invention at A in FIG. 1;
FIG. 3 is a partial cross-sectional view of the buffer plate and the angle adjustment plate of FIG. 1 according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the motor and the rotating shaft of FIG. 1 according to an embodiment of the present invention;
fig. 5 is a partial cross-sectional view of the rotating cover plate of fig. 1 in accordance with an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The falling prevention hidden flat panel display supporting and protecting device described in conjunction with the accompanying drawings 1-5 comprises a desktop 65, a fixed casing 10 is fixedly connected to the lower side of the desktop 65, a rotary reset device 901 is arranged in the desktop 65, the rotary reset device 901 comprises a desktop through groove 19 communicating the upper end surface and the lower end surface of the desktop 65, a rotating shaft 39 is rotatably connected between the front end wall and the rear end wall of the desktop through groove 19, a torsion spring 71 is fixedly connected between the rotating shaft 39 and the desktop 65, a sector gear 40 is fixedly connected to the rotating shaft 39, a rotary cover plate 61 is fixedly connected to the sector gear 40, a knock pin groove 22 and a gear groove 26 positioned at the lower side of the knock pin groove 22 are arranged on the right end wall of the desktop through groove 19, a knock pin 21 is slidably connected to the knock pin groove 22, and a knock pin spring 23 is fixedly connected between the knock pin 21 and the desktop 65, an upper rotating shaft 24 and a lower rotating shaft 38 positioned on the lower side of the upper rotating shaft 24 are rotatably connected in the gear groove 26, an upper gear 25 engaged with the sector gear 40 is fixedly connected to the upper rotating shaft 24, when the rotating cover plate 61 rotates from a horizontal state to a vertical state, the sector gear 40 is firstly engaged with the upper gear 25, and when the rotating cover plate 61 presses the ejector pin 21, the sector gear 40 is disconnected from the upper gear 25, a transmission gear 28 engaged with the upper gear 25 is fixedly connected to the lower rotating shaft 38, an upper belt pulley 27 positioned on the rear side of the transmission gear 28 is fixedly connected to the lower rotating shaft 38, a lifting device 902 is arranged in the fixed shell 10, the lifting device 902 comprises a lifting groove 33 with an upward opening, the lifting groove 33 is communicated with the table top through groove 19, and lifting chutes 13 are arranged on the front and rear end walls of the lifting groove 33, sliding connection has a lifting toothed plate 17 in the lift spout 13, fixedly connected with lifting spring 12 between lifting toothed plate 17 and the fixed casing 10, the terminal surface is the flank of tooth design about lifting toothed plate 17, the right-hand member face tooth of lifting toothed plate 17 has left gear 11, the axle center department fixedly connected with of left gear 11 with fixed casing 10 rotates the left pivot 37 of connecting, fixedly connected with left belt pulley 35 on the left pivot 37, it is located the left pivot 37 right side and is located the right pivot 32 of lower pivot 38 downside to rotate to be connected between the front and back end wall of lift groove 33, fixedly connected with right belt pulley 30 on the right pivot 32, fixedly connected with lower driving belt 34 between right belt pulley 30 and the left belt pulley 35, fixedly connected with lower belt pulley 31 on the right pivot 32, lower belt pulley 31 with fixedly connected with upper driving belt 29 between the upper belt pulley 27, the front end wall and the rear end wall of the lifting groove 33 are provided with limiting plate sliding grooves 15 communicated with the lifting sliding grooves 13, limiting plates 36 are connected in the limiting plate sliding grooves 15 in a sliding mode, the limiting plates 36 are fixedly connected between the fixed shell 10 and limiting plate springs 16, and when the limiting plates 36 are located at the right limit position, the up-down movement of the lifting toothed plate 17 can be limited.
Beneficially, a lifting platform 18 is fixedly connected to the lifting toothed plate 17, a clamping adjusting device 903 is arranged in the lifting platform 18, the clamping adjusting device 903 comprises a rotating groove 66 with an upward opening, a motor 67 is fixedly connected to the inner side of the front end wall of the rotating groove 66, a power shaft 53 is dynamically connected to the front side of the motor 67, an angle adjusting plate 54 is fixedly connected to the power shaft 53, a buffer groove 52 with an upward opening is arranged in the angle adjusting plate 54, and a buffer plate 51 is slidably connected to the buffer groove 52.
Advantageously, a buffer spring 68 is fixedly connected between the front, rear, left and right end walls of the buffer plate 51 and the buffer slot 52, a receiving slot 69 with an upward opening is arranged in the buffer plate 51, electromagnets 42 are fixedly connected to the left and right inner walls of the receiving slot 69, two magnet blocks 44 arranged left and right are slidably connected in the receiving slot 69, an electromagnetic spring 43 is fixedly connected between the magnet blocks 44 and the electromagnets 42 on the same side, two restoring chutes 70 bilaterally symmetrical with respect to the receiving slot 69 are arranged on the upper end surface of the buffer plate 51, a sliding plate 49 is slidably connected in the restoring chute 70, a protective cover plate 41 positioned on the upper side of the buffer plate 51 is fixed on the sliding plate 49, a restoring spring 50 is fixedly connected between the sliding plate 49 and the buffer plate 51, a limit pin chute 45 is arranged on the lower end wall of the restoring chute 70, and an upward extending limit pin 48 is slidably connected in the limit pin chute 45, a limit pin spring 46 is fixedly connected between the limit pin 48 and the buffer plate 51.
Beneficially, a fixing groove 57 with an upward opening is formed in the rotating cover plate 61, a telescopic groove 55 is formed in a right end wall of the fixing groove 57, a telescopic plate 56 extending into the fixing groove 57 is slidably connected in the telescopic groove 55, a telescopic spring 58 is fixedly connected between the telescopic plate 56 and the rotating cover plate 61, sliding grooves 62 are formed in front and rear end faces of the rotating cover plate 61, sliding block limiting grooves 64 are formed in front and rear end walls of the desktop through groove 19, a sliding block 60 is slidably connected in the sliding grooves 62, and a first sliding block spring 63 is fixedly connected between the sliding block 60 and the rotating cover plate 61.
Advantageously, a second slider spring 59 is fixedly connected between the retractable plate 56 and the slider 60, when the retractable plate 56 is at the left limit position, the two slider 60 are away from each other, a pull rope 14 is fixedly connected between the top pin 21 and the limiting plate 36, when the top pin 21 is at the right limit position, the limiting plate 36 is also at the right limit position and limits the up-and-down movement of the lifting tooth plate 17, a limiting pull rope 47 is fixedly connected between the limiting pin 48 and the angle adjusting plate 54, and when the buffer plate 51 is displaced in the angle adjusting plate 54, the limiting pull rope 47 pulls the limiting pin 48 to move downwards.
In an initial state, the two protective cover plates 41 are at extreme positions far away from each other, the return spring 50 is in a stretched state, the limit pin 48 is at an upper extreme position and limits the return of the sliding plate 49, the magnet block 44 is at an extreme position close to the electromagnet 42 on the same side, the rotary cover plate 61 is in a horizontal state, the torsion spring 71 is in a force storage state, the lifting platform 18 and the lifting toothed plate 17 are at lower extreme positions, and the ejector pin 21 is at a left extreme position and limits the plate spring 16 to be in a compressed state.
The retractable plate 56 is moved rightwards by hand, the two sliding blocks 60 are moved towards the direction of approaching each other by pulling the sliding blocks 60, the sliding blocks 60 are separated from the sliding block limiting grooves 64, the rotary cover plate 61 rotates clockwise under the action of the torsion spring 71, at this time, the rotary cover plate 61 drives the rotary shaft 39 and the sector gear 40 to rotate, and further, the upper gear 25, the upper rotary shaft 24, the transmission gear 28, the lower rotary shaft 38, the upper belt pulley 27, the upper transmission belt 29, the lower belt pulley 31, the right rotary shaft 32, the right belt pulley 30, the lower transmission belt 34, the left belt pulley 35 and the left rotary shaft 37 drive the left gear 11 to rotate clockwise, and further, the lifting toothed plate 17 is driven to move upwards by the meshing of the left gear 11 and the lifting toothed plate 17, and further, when the lifting platform 18 is driven to move upwards to the position horizontal to the upper end face of the desktop 65, the sector gear 40 is separated from the upper gear 25, the upper end surface of the rotary cover plate 61 presses the jacking pin 21 to move rightwards, so that the pull rope 14 is loosened, the limiting plate 36 moves rightwards to jack the left end surface of the lifting toothed plate 17 and limit the upper and lower positions of the lifting toothed plate 17 under the action of the limiting plate spring 16, the lifting platform 18 is prevented from moving upwards and downwards, and the stability of the lifting platform 18 is improved;
the motor 67 is manually controlled to start, the motor 67 starts to rotate forwards, the power shaft 53 drives the angle adjusting plate 54 to rotate anticlockwise, the angle adjusting plate 54 is adjusted to a position comfortable with a human visual line, the flat plate is placed between the two magnet blocks 44, the two electromagnets 42 are electrified, the electromagnets 42 repel the two magnet blocks 44 to enable the two magnet blocks 44 to move towards the mutually approaching direction, meanwhile, the two magnet blocks 44 clamp the flat plate, and the situation that the flat plate slides back and forth in the accommodating groove 69 due to different sizes of the flat plate is avoided;
when the desktop bumps or the flat plate shakes in the accommodating groove 69 under external force, the buffer plate 51 shakes, the limiting pin 48 moves downwards by tensioning the limiting pull rope 47, the sliding plate 49 moves towards one side close to the electromagnet 42 under the action of the return spring 50, and the two protective cover plates 41 are driven to move towards the directions close to each other, and because the two protective cover plates 41 are positioned above the flat plate, the flat plate can be effectively prevented from falling off between the two magnet blocks 44, and property loss is avoided;
the electromagnet 42 is powered off, the flat plate is taken out, the expansion plate 56 is pressed to enter the expansion groove 55, the rotating cover plate 61 is pulled to rotate anticlockwise until the rotating cover plate 61 rotates to the horizontal position, and the device resets.
The embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. The utility model provides a hidden flat panel display screen that prevents to fall supports protection device, includes the desktop, its characterized in that: the lower side of the desktop is fixedly connected with a fixed shell, a rotary reset device is arranged in the desktop, the rotary reset device comprises a desktop through groove communicated with the upper end surface and the lower end surface of the desktop, a rotating shaft is rotatably connected between the front end wall and the rear end wall of the desktop through groove, a torsional spring is fixedly connected between the rotating shaft and the desktop, a sector gear is fixedly connected on the rotating shaft, a rotary cover plate is fixedly connected on the sector gear, a knock pin groove and a gear groove positioned on the lower side of the knock pin groove are arranged on the right end wall of the desktop through groove, a knock pin is slidably connected in the knock pin groove, a knock pin spring is fixedly connected between the knock pin and the desktop, an upper rotating shaft and a lower rotating shaft positioned on the lower side of the upper rotating shaft are rotatably connected in the gear groove, an upper gear meshed with the sector gear is fixedly connected on the upper rotating shaft, and when the rotary cover plate rotates from a horizontal state to a vertical state, the sector gear is meshed with the upper gear firstly, when the rotating cover plate presses the ejector pin, the sector gear is disconnected with the upper gear, the lower rotating shaft is fixedly connected with a transmission gear meshed with the upper gear, the lower rotating shaft is fixedly connected with an upper belt pulley positioned at the rear side of the transmission gear, a lifting device is arranged in the fixed shell and comprises a lifting groove with an upward opening, the lifting groove is communicated with the desktop through groove, the front end wall and the rear end wall of the lifting groove are provided with lifting sliding grooves, the lifting sliding grooves are in sliding connection with lifting toothed plates, lifting springs are fixedly connected between the lifting toothed plates and the fixed shell, the left end face and the right end face of each lifting toothed plate are both in tooth surface design, the right end face of each lifting toothed plate is meshed with a left gear, and the axis of the left gear is fixedly connected with a left rotating shaft rotatably connected with the fixed shell, a left belt pulley is fixedly connected to the left rotating shaft, a right rotating shaft which is located on the right side of the left rotating shaft and located on the lower side of the lower rotating shaft is rotatably connected between the front end wall and the rear end wall of the lifting groove, a right belt pulley is fixedly connected to the right rotating shaft, a lower transmission belt is fixedly connected between the right belt pulley and the left belt pulley, an upper transmission belt is fixedly connected between the lower belt pulley and the upper belt pulley, limiting plate sliding grooves communicated with the lifting sliding grooves are formed in the front end wall and the rear end wall of the lifting groove, limiting plates are slidably connected in the limiting plate sliding grooves, limiting plate springs are fixedly connected between the limiting plates and the fixed shell, and when the limiting plates are located at the right limit position, the up-and-down movement of the lifting toothed plate can be limited; the lifting toothed plate is fixedly connected with a lifting platform, a clamping adjusting device is arranged in the lifting platform and comprises a rotating groove with an upward opening, a motor is fixedly connected in the front end wall of the rotating groove, the front side power of the motor is connected with a power shaft, an angle adjusting plate is fixedly connected on the power shaft, a buffer groove with an upward opening is arranged in the angle adjusting plate, a buffer plate is connected in the buffer groove in a sliding manner, buffer springs are fixedly connected between the buffer plate and the front, rear, left and right end walls of the buffer groove, a containing groove with an upward opening is arranged in the buffer plate, electromagnets are fixedly connected to the left and right inner walls of the containing groove, two magnet blocks which are arranged left and right are connected in the containing groove in a sliding manner, and an electromagnetic spring is fixedly connected between the magnet block and the electromagnet at the same side; the upper end face of the buffer plate is provided with two reset chutes which are bilaterally symmetrical about the accommodating groove, the reset chutes are connected with sliding plates in a sliding mode, the sliding plates are fixedly provided with protective cover plates positioned on the upper side of the buffer plate, reset springs are fixedly connected between the sliding plates and the buffer plate, the lower end wall of each reset chute is provided with a limiting pin chute, a limiting pin extending upwards is connected in the limiting pin chute in a sliding mode, and a limiting pin spring is fixedly connected between the limiting pin and the buffer plate; a fixed groove with an upward opening is formed in the rotary cover plate, a telescopic groove is formed in the right end wall of the fixed groove, a telescopic plate extending into the fixed groove is connected in the telescopic groove in a sliding mode, a telescopic spring is fixedly connected between the telescopic plate and the rotary cover plate, sliding grooves are formed in the front end face and the rear end face of the rotary cover plate, sliding block limiting grooves are formed in the front end wall and the rear end wall of the desktop through groove, a sliding block is connected in the sliding grooves in a sliding mode, and a first sliding block spring is fixedly connected between the sliding block and the rotary cover plate; the expansion plate with fixedly connected with second slider spring between the slider, work as when the expansion plate is in left extreme position, two the state that slider department kept away from each other, the knock pin with fixedly connected with stay cord between the limiting plate, work as when the knock pin is located right extreme position, the limiting plate is located right extreme position equally and restriction the reciprocating of lifting tooth plate, the spacer pin with the spacing stay cord of fixedly connected with between the angle adjusting plate, work as the buffer board is in when taking place the displacement in the angle adjusting plate, spacing stay cord pulling the spacer pin removes downwards.
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CN202011605574.3A CN112545177B (en) | 2020-12-30 | 2020-12-30 | Prevent hidden flat display screen support protection device that falls |
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CN202011605574.3A CN112545177B (en) | 2020-12-30 | 2020-12-30 | Prevent hidden flat display screen support protection device that falls |
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JP2016221137A (en) * | 2015-06-03 | 2016-12-28 | 株式会社北島製作所 | table |
KR101581881B1 (en) * | 2015-07-02 | 2016-01-04 | 아이자드 주식회사 | Automatically Monitor Receiving Type Desk |
CN209965614U (en) * | 2019-03-27 | 2020-01-21 | 湖南软件职业学院 | Real workstation of instructing of computer convenient to accomodate |
CN110179247A (en) * | 2019-04-17 | 2019-08-30 | 厦门翟湾电脑有限公司 | A kind of Dust-proof computer table |
CN212088602U (en) * | 2020-03-24 | 2020-12-08 | 佛山科学技术学院 | Table with liftable and adjustable table top |
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