CN102125356A - Adjustable desk for pupils and adjusting method thereof - Google Patents
Adjustable desk for pupils and adjusting method thereof Download PDFInfo
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- CN102125356A CN102125356A CN201110087973XA CN201110087973A CN102125356A CN 102125356 A CN102125356 A CN 102125356A CN 201110087973X A CN201110087973X A CN 201110087973XA CN 201110087973 A CN201110087973 A CN 201110087973A CN 102125356 A CN102125356 A CN 102125356A
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Abstract
The invention relates to an adjustable desk for pupils and an adjusting method thereof. The desk is designed for solving the technical problem that the traditional similar product has a single function and is not convenient to assemble and disassemble. The key technical point is that: horizontal adjusting rods of the desk are symmetrically fixed on an upper side bracket; a lifting fixing base is fixed on an upper back bracket; one end of a height adjusting rod is hinged with the horizontal adjusting rods; the other end of the height adjusting rod is hinged with a drawer fixing base; the drawer fixing base is fixedly connected with a drawer frame; one end of a lifting rod is hinged with the lifting fixing base; the other end of the lifting rod is hinged with a lifting pedestal; the lifting pedestal is pressed against the drawer frame; the middle parts of the height adjusting rod and the lifting rod are connected in series into a whole through a central shaft; an angle adjusting piece is triangular; one side of the angle adjusting piece is connected with the bottom of a desk top; and the opposite angle of the side is connected with the drawer frame through an angle adjusting bolt. The adjustable desk has reasonable design, a simple structure and attractive appearance and is simple and feasible in height; and the angle adjusting method, is convenient to use, and is suitable for the adjustment of the heights and angles of the similar products, such as desks and the like, and the structural improvement of the similar products.
Description
Technical field
The present invention relates to desk or desk, is a kind of adjustable pupil's desk and control method thereof.
Technical background
Desk is to write or read the desk of usefulness for the student when learning in school, and some desks are used for house and write or read usefulness, or is called desk.These desks generally are made up of desktop, drawer, table leg, mainly are divided into according to its structure and material difference: solid wood desk, lifting desk, rubber and plastic desk.Wherein, some lifting desks adopt the fork configuration of intersection rod-type, and as the CN85205066U that discloses in the Chinese patent literature, on November 5 1986 day for announcing, the utility model title " can be regulated table "; The ZL patent No. 97200026.7 that and for example discloses in the Chinese patent literature, October 7 1998 Granted publication day, utility model title " the desktop stepless is adjusted lowering or hoisting gear "; The application number 200810059396.1 that discloses in the Chinese patent literature for another example, open day on August 5th, 2009, denomination of invention " a kind of height-adjustable desk ".The lift adjustment mode of above-mentioned desk adopts two V shapes of four bars, four fulcrums, and other desks adopt fluid pressure type to carry out lift adjustment and angular adjustment, and the regulative mode of these desks is comparatively complicated, uses comparatively inconvenience.
Summary of the invention
For overcoming above-mentioned deficiency, the objective of the invention is to provide a kind of single tine formula and height, two adjustable pupil's desk and the control methods of regulating thereof of angle of four bars, three fulcrums to this area, solve existing like product complex structure and awkward technical problem, its objective is and realize by the following technical solutions.
A kind of adjustable pupil's desk, this desk is made up of drawer appliance and bracket component, described bracket component is made up of table leg support and height adjustment assembly, and height adjustment assembly comprises height adjustment bolt, levelling lever, height regulating rod, central shaft, drawer holder, lifting base, lifting holder, lifting bar; The levelling lever symmetry that its design main points are described height adjustment assemblies is fixedly set in the upside shelf inner diameter of table leg support, and the lifting holder is fixedly set in the last after-poppet of table leg support; One end of height regulating rod is hinged with levelling lever respectively, and the other end is hinged with the drawer holder respectively, and the drawer holder is fixedlyed connected with the bottom of drawer frame; One end and the lifting holder of lifting bar are hinged, and the other end and lifting base are hinged, and the bottom of lifting base and drawer frame offsets; The middle part of the middle part of height regulating rod, lifting bar is by the fixing series connection of central shaft one.Like this, a lifting base and two drawer holders constitute three strong points bottom the drawer frame, two height regulating rods are connected by central shaft with a lifting bar and are single tine shape, move horizontally by height regulating rod and to drive the above-mentioned strong point lifting drawer appliance that moves up and down, the said structure feature is the single tine formula lift adjustment mode of described four bars, three fulcrums.
Described levelling lever is provided with horizontal concrete chute, and the hinged end of height regulating rod and levelling lever is arranged in the horizontal concrete chute, and the last side stand of table leg support one side is provided with height adjustment bolt, and the adjustable side of height adjustment bolt is connected with the hinged end of height regulating rod.According to above-mentioned single tine shape support operation principle, the hinged end of height regulating rod moves horizontally in the horizontal concrete chute of levelling lever, the hinged end that drives height regulating rod and levelling lever by a height adjustment bolt moves horizontally, or passes through the hinged end of height adjustment bolt degree of tightness level altitude adjusting rod and levelling lever; Thereby drive the fan-shaped rotation of central shaft level, central shaft drives the fan-shaped rotation of lifting bar and another height regulating rod is subjected to displacement, and reaches the purpose of regulating strong point height.
Be provided with adjusting screw(rod) and bar slide block in the horizontal concrete chute of described levelling lever, an end of adjusting screw(rod) is fixedlyed connected with height adjustment bolt, and an end and the bar slide block of height regulating rod are hinged, the screw-threaded engagement of the screw thread of adjusting screw(rod) and bar slide block.Drive adjusting screw(rod) by height adjustment bolt and rotate, adjusting screw(rod) drives the bar slide block and moves horizontally, and the hinged end that the bar slide block drives height regulating rod moves horizontally, thereby realizes the purpose of above-mentioned adjusting strong point height.
Described adjusting screw(rod) replaces with eccentric screw, and the bar slide block is fixed in the sliding tray between horizontal concrete chute and the eccentric screw.When the distal end and the bar slide block of eccentric screw offsets, the position of height regulating rod in horizontal concrete chute locked by eccentric screw; When the proximal part of eccentric screw is relative with the bar slide block, height regulating rod can move horizontally in horizontal concrete chute.
The angular adjustment part of described drawer appliance is triangular in shape, one side of angular adjustment part is connected with the bottom of desktop, the diagonal angle on this limit of angular adjustment part is connected by the open side of angle adjustable bolt with drawer frame one end, and angular adjustment part, angle adjustable bolt are symmetricly set in drawer appliance.Regulate start point between desktop and the drawer frame by angle adjustable bolt, i.e. angle between desktop and the drawer frame, thereby the gradient of regulating desktop.
Pass through the mode latched position of angle adjustable bolt, the stressed increase frictional force of nut between above-mentioned drawer appliance and the angular adjustment part; Perhaps: the angle adjustable bolt of described drawer frame one side is passed angular adjustment part, drawer frame successively, angle adjustable bolt is fixedlyed connected with the angular adjustment part of drawer appliance, the toothed disc of angle latch assembly, the cage knob of angle latch assembly is fixed in drawer frame by set bolt, set bolt between cage knob and the drawer frame is provided with torsion spring, and an end of cage knob and the tooth mouth of toothed disc fasten.Push cage knob, the tooth mouth of cage knob and toothed disc breaks away from, and rotational angle is regulated the angle that bolt is regulated desktop; After the angle initialization of desktop is finished, unclamp cage knob, cage knob automatically resets by torsion spring, and the tooth mouth of cage knob and toothed disc fastens, and the angle of desktop can be fixed.
The table leg support of described bracket component is arc, and this structural design had both been stablized the stability of this desk base, has improved the good looking appearance of this desk again.
According to the said structure characteristics, the control method of described adjustable pupil's desk comprises the control method of height of table top and the control method of desktop angle, the control method of its height of table top is: lifting bar one end of described height adjustment assembly is fixed in the last after-poppet of table leg support, last side stand is arranged with height regulating rod, the horizontal slip in the horizontal concrete chute of levelling lever respectively of one end of height regulating rod drives the other end of lifting bar, the other end lifting drawer frame of two height regulating rods by central shaft; An end that is lifting bar and levelling lever is fixing respectively, the other end of lifting bar holds up drawer frame, drive the central point of central shaft by the horizontal movement of the levelling lever other end, and the picking-up of lifting bar and drawer frame holds fan-shaped rotation, thereby drives the stiff end of levelling lever and horizontal lifting is held in the picking-up of lifting bar.An above-mentioned lifting bar, a central shaft, both heights adjusting rod constitute the single tine formula supporting mechanism of four bars, three fulcrums, be that an end of lifting bar and an end of height regulating rod are fixed respectively, horizontal level by the height regulating rod other end changes the level height that drives central shaft and changes, the drawer frame that central shaft drives the lifting bar other end holds up the fan-shaped rotation of end, and central shaft drives another height regulating rod and this height regulating rod is made same movement, changes thereby drive the elevation of water that the picking-up end of the stiff end of two height regulating rods and lifting bar constituted.
The control method of above-mentioned height of table top is realized by following structure: the stiff end of described height regulating rod is fixedlyed connected with the bottom of drawer frame by the drawer holder, and the stiff end of described lifting bar is fixedly hinged in the last after-poppet of table leg support by the lifting holder; The horizontal slip end of described height regulating rod is regulated and locking by height adjustment bolt.
The control method of its desktop angle is: described drawer frame and desktop adopt split-type design, by the angle adjustable bolt adjusting angle regulating part of described drawer frame one end opening side and the angle between the drawer frame, thus the angle between adjusting desktop and this desk horizontal plane.Above-mentioned regulative mode is by the mode lock mode of increase frictional force or the locate mode of toothed disc.
Height of table top of the present invention and angular adjustment are convenient, and stability, security are good, and it is reasonable in design, and is simple in structure, and good looking appearance is easy to use, highly, angular adjustment method simple possible; Be applicable to the height and the angular adjustment of like products such as desk and desk, and the architecture advances of like product.
Description of drawings
Fig. 1 is a structural representation of the present invention, and arrow is the direction of rotation of angle adjustable bolt among the figure.
Fig. 2 is the desktop heeling condition structural representation of Fig. 1.
Fig. 3 is a bracket component rounding state structural representation of the present invention.
Fig. 4 is a bracket component deployed condition structural representation of the present invention.
Fig. 5 is the height adjustment assembly structural representation of Fig. 4, and arrow is the direction of motion of corresponding component among the figure.
Fig. 6 is a levelling lever sectional structure schematic diagram of the present invention.
Fig. 7 is the improved structure schematic diagram of Fig. 6.
Fig. 8 is an angle locking modular construction schematic diagram of the present invention.
Fig. 9 is the blast structural representation of Fig. 8.
Figure number and title: 1, drawer appliance, 101, desktop, 102, drawer frame, 103, the angular adjustment part, 104, angle adjustable bolt, 2, bracket component, 201, table leg support, 2011, last side stand, 2012, last after-poppet, 202, height adjustment bolt, 2021, adjusting screw(rod), 2022, eccentric screw, 203, levelling lever, 2031, horizontal concrete chute, 204, height regulating rod, 2041, the bar slide block, 205, central shaft, 206, the drawer holder, 207, the lifting base, 208, the lifting holder, 209, the lifting bar, 3, the angle latch assembly, 301, toothed disc, 302, cage knob, 303, set bolt, 304, torsion spring, 100, height adjustment assembly.
The specific embodiment
Now in conjunction with the accompanying drawings, structure of the present invention and operation principle are further described.As Fig. 1～shown in Figure 5, the bracket component 2 of this desk is arc, and bracket component is provided with drawer appliance 1, only fixedlys connected by an end of height regulating rod 204 between bracket component and the drawer appliance.The inboard of bracket component is provided with height adjustment assembly 100, the levelling lever 203 of height adjustment assembly is symmetricly set in last side stand 2011 internal diameters of table leg support 201, the levelling lever of one side is provided with height adjustment bolt 202, the hinged respectively horizontal concrete chute that is arranged at levelling lever of one end of height regulating rod, the other end of height regulating rod is fixedlyed connected with the drawer frame 102 of drawer appliance by drawer holder 206 respectively, and this end height regulating rod is hinged with the drawer holder respectively.The last after-poppet 2012 of table leg support is provided with lifting holder 208, and an end and the lifting holder of lifting bar 209 are hinged, and the other end and lifting base 207 are hinged, and the bottom of lifting base and drawer frame offsets.The middle part of above-mentioned symmetrically arranged two height regulating rods and a lifting bar constitutes the single tine formula structure of four bars, three fulcrums by central shaft 205 fixing series connection one.The drawer frame of drawer appliance and desktop 101 adopt split-type design, and desktop is connected with drawer frame by angular adjustment part 103.That is: the angular adjustment part is triangular in shape, the angular adjustment part is symmetricly set in the bottom of desktop, one side of angular adjustment part is connected with the bottom of desktop respectively, and wherein this diagonal angle, limit of an angular adjustment part is connected with the open side of drawer frame one end by angle adjustable bolt 104.According to last design feature, this desk is made up of drawer appliance and bracket component, and bracket component is made up of table leg support and height adjustment assembly; Height adjustment assembly is made up of height adjustment bolt, levelling lever, height regulating rod, central shaft, drawer holder, lifting base, lifting holder, lifting bar.
As Fig. 6～shown in Figure 9, bar slide block 2041 horizontal slip in the horizontal concrete chute of levelling lever that the hinged end of above-mentioned height regulating rod and levelling lever adopts the adjusting screw(rod) 2021 of height adjustment bolt to drive height regulating rods realizes, or the bar slide block that adopts eccentric screw 2022 lockings of levelling lever and unclamp height regulating rod is realized height regulating rod horizontal slip in the horizontal concrete chute of levelling lever; Angular adjustment between above-mentioned desktop and the drawer frame adopts the mode of angle adjustable bolt, the stressed increase frictional force of nut to lock, or the mode that adopts angle adjustable bolt, toothed disc 301, cage knob 302 to increase damping force locks.
As described in Figure 6, the hinged end of height regulating rod is connected with the bar slide block, and the bar slide block is arranged in the horizontal concrete chute of levelling lever, the screw-threaded engagement of the screw thread of adjusting screw(rod) and bar slide block.Rotate height adjustment bolt and drive the adjusting screw(rod) rotation, adjusting screw(rod) drives the bar slide block relative displacement takes place in horizontal concrete chute, the bar slide block drives the height regulating rod occurred level and moves, and drawer frame is subjected to the gravity effect, and the stiff end elevation of water that drives height regulating rod changes; At this moment, the height regulating rod of this side changes by the elevation of water that central shaft drives lifting bar, another height regulating rod and drawer frame, thereby realizes the height change of drawer frame and desktop.According to above-mentioned operation principle, as shown in Figure 7, adjusting screw(rod) replaces with eccentric screw, the bar slide block is fixed in horizontal slip in the horizontal concrete chute, driving eccentric screw by height adjustment bolt rotates, the distal end of eccentric screw and the locking of bar slide block, the proximal part of eccentric screw and bar slide block unclamp, and also can reach identical technical purpose of above-mentioned adjusting screw(rod) and technique effect.
The angle adjustable bolt of drawer frame one side is passed angular adjustment part, drawer frame successively, and angle adjustable bolt is fixedlyed connected with the angular adjustment part of drawer appliance, the toothed disc of angle latch assembly 3; As Fig. 8, shown in Figure 9, the set bolt 303 of angle latch assembly passes the internal diameter that cage knob, torsion spring 304 are fixed in drawer frame successively, and an end of cage knob and the tooth mouth of toothed disc fasten, and said gear dish, cage knob, set bolt, torsion spring are formed the angle latch assembly.Push the other end of cage knob, the tooth mouth of cage knob and toothed disc breaks away from, and rotational angle is regulated bolt, and angle adjustable bolt drives the angular adjustment part and toothed disc rotates, and the angular adjustment part of symmetrical opposite side also rotates; Cage knob is unclamped after regulating and finishing in the angle of inclination of desktop, and an end of torsion spring catch knob automatically resets, and cage knob fastens the locking position of angular adjustment part with tooth mouth with toothed disc.
Height and the angular adjustment of the present invention by desktop reaches sitting posture, line-of-sight distance, light angle and meets ergonomics purpose, helps user's health and keeps comfortable, correct sitting posture, prevents myopia and prevention pseudo-myopia.
Claims (10)
1. adjustable pupil's desk, this desk is made up of drawer appliance (1) and bracket component (2), described bracket component is made up of table leg support (201) and height adjustment assembly (100), and height adjustment assembly comprises height adjustment bolt (202), levelling lever (203), height regulating rod (204), central shaft (205), drawer holder (206), lifting base (207), lifting holder (208), lifting bar (209); It is characterized in that levelling lever (203) symmetry of described height adjustment assembly (100) is fixedly set in last side stand (2011) internal diameter of table leg support (201), lifting holder (208) is fixedly set in the last after-poppet (2012) of table leg support; One end of height regulating rod (204) is hinged with levelling lever respectively, and the other end is hinged with drawer holder (206) respectively, and the drawer holder is fixedlyed connected with the bottom of drawer frame (102); One end and the lifting holder of lifting bar (209) are hinged, and the other end and lifting base (207) are hinged, and the bottom of lifting base and drawer frame offsets; The middle part of the middle part of height regulating rod, lifting bar is by the fixing series connection of central shaft (205) one.
2. adjustable pupil's desk according to claim 1, it is characterized in that described levelling lever (203) is provided with horizontal concrete chute (2031), height regulating rod (204) is arranged in the horizontal concrete chute with the hinged end of levelling lever, the last side stand (2011) of table leg support (201) one sides is provided with height adjustment bolt (202), and the adjustable side of height adjustment bolt is connected with the hinged end of height regulating rod.
3. adjustable pupil's desk according to claim 2, it is characterized in that being provided with adjusting screw(rod) (2021) and bar slide block (2041) in the horizontal concrete chute (2031) of described levelling lever (203), one end of adjusting screw(rod) is fixedlyed connected with height adjustment bolt (202), one end and the bar slide block of height regulating rod (204) are hinged, the screw-threaded engagement of the screw thread of adjusting screw(rod) and bar slide block.
4. adjustable pupil's desk according to claim 3 is characterized in that described adjusting screw(rod) (2021) replaces with eccentric screw (2022), and bar slide block (2041) is fixed in the sliding tray between horizontal concrete chute (2031) and the eccentric screw.
5. adjustable pupil's desk according to claim 1, the angular adjustment part (103) that it is characterized in that described drawer appliance (1) is triangular in shape, one side of angular adjustment part is connected with the bottom of desktop (101), the diagonal angle on this limit of angular adjustment part is connected with the open side of drawer frame (102) one ends by angle adjustable bolt (104), and angular adjustment part, angle adjustable bolt are symmetricly set in drawer appliance.
6. adjustable pupil's desk according to claim 5, the angle adjustable bolt (104) that it is characterized in that described drawer frame (102) one sides is passed angular adjustment part (103) successively, drawer frame (102), the angular adjustment part (103) of angle adjustable bolt and drawer appliance (1), the toothed disc (301) of angle latch assembly (3) is fixedly connected, the cage knob of angle latch assembly (302) is fixed in drawer frame (102) by set bolt (303), set bolt between cage knob and the drawer frame is provided with torsion spring (304), and an end of cage knob and the tooth mouth of toothed disc fasten.
7. adjustable pupil's desk according to claim 1 is characterized in that the table leg support (201) of described bracket component (2) is arc.
8. the control method of adjustable pupil's desk, this desk is made up of drawer appliance (1) and bracket component (2), described bracket component is made up of table leg support (201) and height adjustment assembly (100), and height adjustment assembly comprises height adjustment bolt (202), levelling lever (203), height regulating rod (204), central shaft (205), drawer holder (206), lifting base (207), lifting holder (208), lifting bar (209); It is characterized in that lifting bar (209) one ends of described height adjustment assembly (100) are fixed in the last after-poppet (2012) of table leg support (201), last side stand (2011) is arranged with height regulating rod (204), one end of height regulating rod is horizontal slip in the horizontal concrete chute (2031) of levelling lever (203) respectively, drives the other end of lifting bar, the other end lifting drawer frame (102) of two height regulating rods by central shaft (205); An end that is lifting bar and levelling lever is fixing respectively, the other end of lifting bar holds up drawer frame, drive the central point of central shaft by the horizontal movement of the levelling lever other end, and the picking-up of lifting bar and drawer frame holds fan-shaped rotation, thereby drives the stiff end of levelling lever and horizontal lifting is held in the picking-up of lifting bar.
9. the control method of described according to Claim 8 adjustable pupil's desk, the stiff end that it is characterized in that described height regulating rod (204) is fixedlyed connected with the bottom of drawer frame (102) by drawer holder (206), and the stiff end of described lifting bar (209) is fixedly hinged in the last after-poppet (2012) of table leg support (201) by lifting holder (208); The horizontal slip end of described height regulating rod is regulated and locking by height adjustment bolt (202).
10. according to the control method of the described adjustable pupil's desk of claim 5, it is characterized in that described drawer frame (102) and desktop (101) adopt split-type design, by angle adjustable bolt (104) the adjusting angle regulating part (103) of described drawer frame one end opening side and the angle between the drawer frame, thus the angle between adjusting desktop and this desk horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110087973 CN102125356B (en) | 2011-03-31 | 2011-03-31 | Adjustable desk for pupils and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110087973 CN102125356B (en) | 2011-03-31 | 2011-03-31 | Adjustable desk for pupils and adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102125356A true CN102125356A (en) | 2011-07-20 |
| CN102125356B CN102125356B (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110087973 Expired - Fee Related CN102125356B (en) | 2011-03-31 | 2011-03-31 | Adjustable desk for pupils and adjusting method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102125356B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105394971A (en) * | 2015-11-13 | 2016-03-16 | 广东工业大学 | Study desk for children |
| CN105852531A (en) * | 2016-04-07 | 2016-08-17 | 中山艾华企业管理咨询有限公司 | Exhibition stand with movable overturn piece |
| CN108712687A (en) * | 2018-05-17 | 2018-10-26 | 合肥利元杰信息科技有限公司 | A kind of computer sound equipment rack |
| CN110811134A (en) * | 2019-12-24 | 2020-02-21 | 青岛理工大学 | Safe turnover device for table board |
| CN112841897A (en) * | 2021-03-05 | 2021-05-28 | 江西美达文体器材有限公司 | Adjustable lifting multifunctional desk |
| CN113862915A (en) * | 2021-10-11 | 2021-12-31 | 浙江工贸职业技术学院 | Detachable adjustable hand embroidery shed frame |
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| CN2407645Y (en) * | 2000-03-17 | 2000-11-29 | 刘士龙 | Adjustable health table |
| CN2664473Y (en) * | 2003-10-22 | 2004-12-22 | 罗玉明 | Table top multiple angle adjustable table |
| WO2006059810A1 (en) * | 2004-11-30 | 2006-06-08 | Duoback Korea Co., Ltd. | Adjustable height table |
| CN101496679A (en) * | 2008-01-31 | 2009-08-05 | 马跃凌 | Desk with adjustable height |
| CN201968124U (en) * | 2011-03-31 | 2011-09-14 | 高贝 | Adjustable desk for primary school students |
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2011
- 2011-03-31 CN CN 201110087973 patent/CN102125356B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2407645Y (en) * | 2000-03-17 | 2000-11-29 | 刘士龙 | Adjustable health table |
| CN2664473Y (en) * | 2003-10-22 | 2004-12-22 | 罗玉明 | Table top multiple angle adjustable table |
| WO2006059810A1 (en) * | 2004-11-30 | 2006-06-08 | Duoback Korea Co., Ltd. | Adjustable height table |
| CN101496679A (en) * | 2008-01-31 | 2009-08-05 | 马跃凌 | Desk with adjustable height |
| CN201968124U (en) * | 2011-03-31 | 2011-09-14 | 高贝 | Adjustable desk for primary school students |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105394971A (en) * | 2015-11-13 | 2016-03-16 | 广东工业大学 | Study desk for children |
| CN105394971B (en) * | 2015-11-13 | 2019-02-01 | 广东工业大学 | A kind of child learning desk |
| CN105852531A (en) * | 2016-04-07 | 2016-08-17 | 中山艾华企业管理咨询有限公司 | Exhibition stand with movable overturn piece |
| CN108712687A (en) * | 2018-05-17 | 2018-10-26 | 合肥利元杰信息科技有限公司 | A kind of computer sound equipment rack |
| CN110811134A (en) * | 2019-12-24 | 2020-02-21 | 青岛理工大学 | Safe turnover device for table board |
| CN112841897A (en) * | 2021-03-05 | 2021-05-28 | 江西美达文体器材有限公司 | Adjustable lifting multifunctional desk |
| CN112841897B (en) * | 2021-03-05 | 2022-07-29 | 江西美达教育设备集团有限公司 | Adjustable lifting multifunctional desk |
| CN113862915A (en) * | 2021-10-11 | 2021-12-31 | 浙江工贸职业技术学院 | Detachable adjustable hand embroidery shed frame |
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|---|---|
| CN102125356B (en) | 2013-04-10 |
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Granted publication date: 20130410 Termination date: 20140331 |