CN210158274U - Lifting desk for practice classroom - Google Patents

Lifting desk for practice classroom Download PDF

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Publication number
CN210158274U
CN210158274U CN201920530698.6U CN201920530698U CN210158274U CN 210158274 U CN210158274 U CN 210158274U CN 201920530698 U CN201920530698 U CN 201920530698U CN 210158274 U CN210158274 U CN 210158274U
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CN
China
Prior art keywords
desk
gear
fixedly connected
lifting
desktop
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Expired - Fee Related
Application number
CN201920530698.6U
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Chinese (zh)
Inventor
张丽楠
徐耀芬
胡景娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEILONGJIANG INTERNATIONAL UNIVERSITY
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HEILONGJIANG INTERNATIONAL UNIVERSITY
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Priority to CN201920530698.6U priority Critical patent/CN210158274U/en
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Publication of CN210158274U publication Critical patent/CN210158274U/en
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Abstract

The utility model relates to an educational apparatus technical field, more specifically the lift desk in practical classroom that says so, support the base including the desk, desk elevating gear, lift fixed component and desk desktop main part, when needs are adjusted the height of device, upwards stimulate fixed square column, let gear rack II break away from gear II, the gear shaft rotates, the gear shaft drives desk desktop main part through two gear I meshing transmissions respectively with two gear rack I and reciprocates, thereby change the height of desktop mainboard, when article are too much on the desktop mainboard, rotate the extension desktop of desktop mainboard both sides, it is parallel with the desktop mainboard to let extension desktop, continue to rotate two rotation fixed plate, it is spacing to extension desktop to utilize rotation fixed plate, prevent extension desktop rotation downwards, thereby realize the extension to the desktop mainboard.

Description

Lifting desk for practice classroom
Technical Field
The utility model relates to the technical field of educational equipment, more specifically the lift desk in practice classroom that says so.
Background
There is a detachable lifting desk and chair of patent No. CN90211481.6, which comprises a drawer plate, a seat plate, a desk support frame and a chair support frame, and is characterized in that a through slot is arranged on a support rod of the desk support frame, the through slot is connected with a through hole arranged on a straight rod of the frame through a bolt, the lifting desk drawer frame is fixed on the desk support frame, the drawer plate is arranged on the lifting desk drawer frame, the through slot is arranged on a support rod of the chair support frame, the through slot is connected with the through hole arranged on the straight rod of the upper frame through a bolt, the upper frame of the lifting chair is fixed on the chair support frame, and the seat plate and a backup plate are arranged at the middle. The cross section of the supporting rod of the desk supporting frame and the cross section of the frame straight rod as well as the cross section of the supporting rod of the seat supporting frame and the cross section of the upper frame straight rod are designed into a concave arc shape. The concave arc of the desk supporting rod and the concave arc of the seat supporting rod are respectively provided with a lug boss. This is novel can not extend the desktop, but also can not be steady go up and down to the desktop.
Disclosure of Invention
The utility model relates to an educational apparatus technical field, more specifically the lift desk in practice classroom that says so, including desk support base, desk elevating gear, lift fixed component and desk desktop main part, this device can be steady drive desktop go up and down, can also lengthen the width of desktop according to actual conditions.
A lifting desk for a practical classroom comprises a desk supporting base, a desk lifting device, a lifting fixing component and a desk top main body, wherein the desk supporting base is fixedly connected with the desk lifting device, the lifting fixing component is slidably connected with the desk lifting device, and the desk top main body is fixedly connected to the upper end of the desk supporting base.
As this technical scheme's further optimization, the utility model relates to a lift desk in practice classroom the desk support the base including supporting slat, connecting strip, lift sliding chamber, spacing sliding port, lift square column and rack I, support slat and connecting strip all be provided with two, two support slats be fixed connection both ends about two connecting strips respectively, two equal fixedly connected with lift sliding chamber in upper end that support the slat all are provided with spacing sliding port on two lift sliding chamber, the lift square column be provided with two, equal fixedly connected with rack I on two lift square columns, two lift square columns and two rack I difference sliding connection are in two lift sliding chamber and two spacing sliding ports.
As a further optimization of the technical proposal, the desk lifting device of the lifting desk for practice classroom of the utility model comprises a fixed connecting plate, a gear shaft, a gear I, a rotating cylinder, a labor-saving cylinder, a lifting square groove, a gear II, a rear protecting plate, a front protecting plate and a pedal plate, wherein the left end and the right end of the fixed connecting plate are respectively fixedly connected with two supporting strip plates, the fixed connecting plate is rotatably connected with the gear shaft, the left end and the right end of the gear shaft are both fixedly connected with the gear I, the two gear I are respectively meshed with the two gear I for transmission, the right end of the gear shaft is fixedly connected with the rotating cylinder, the upper side and the lower side of the right end of the rotating cylinder are both fixedly connected with the labor-saving cylinder, the lifting square groove is arranged on the fixed connecting plate, the middle end of the gear shaft is fixedly connected with, the rear end of the front protective plate is fixedly connected with a pedal plate.
As this technical scheme's further optimization, the utility model relates to a lift desk in practice classroom the fixed component of lift include fixed square column, gear rack II, spring, limiting plate and semicircle handle, fixed square column sliding connection is in the square groove that goes up and down, the lower extreme fixedly connected with gear rack II of fixed square column, gear rack II meshes the transmission with gear II, the cover has the spring on the fixed square column, the spring is located between fixed connection board and the gear rack II, the upper end fixedly connected with limiting plate of fixed square column, the upper end fixedly connected with semicircle handle of limiting plate.
As this technical scheme's further optimization, the utility model relates to a lift desk in practice classroom desk desktop main part include the desktop mainboard, store the chamber and connect the leg, the chamber is stored to the lower extreme fixedly connected with of desktop mainboard, stores the equal fixedly connected with in both sides of the left and right sides of chamber lower extreme and connects the leg, two connect the upper end of leg difference fixed connection at two lift square columns.
As this technical scheme's further optimization, the utility model relates to a lift desk in practice classroom desk desktop main part still include extension desktop, axis of rotation, rotation fixed plate and stop nut, extension desktop be provided with two, two extension desktops articulate both ends about the desktop mainboard respectively, the equal fixedly connected with axis of rotation in the left and right sides of desktop mainboard lower extreme, all rotate in two axis of rotation and be connected with rotation fixed plate, the lower extreme of two axis of rotation all has stop nut through threaded connection.
The utility model relates to a lift desk in practice classroom's beneficial effect does:
when the height of needs to the device is adjusted, upwards stimulate fixed square column, let gear rack II break away from gear II, the gear shaft rotates, the gear shaft reciprocates with two gear rack I meshing transmission drive desk desktop main parts respectively through two gear I, thereby change the height of desktop mainboard, when article are too much on the desktop mainboard, rotate the extension desktop of desktop mainboard both sides, let extension desktop and desktop mainboard be parallel, continue to rotate two rotation fixed plate, it is spacing to extension desktop to utilize rotation fixed plate, prevent that extension desktop from rotating downwards, thereby realize the extension to the desktop mainboard.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a lifting desk for a practice classroom of the present invention;
FIG. 2 is a schematic view of a lifting desk in a practice classroom in an unfolded configuration;
FIG. 3 is a schematic view of a structure of a desk support base;
FIG. 4 is a view showing a partial structure of a desk support base;
FIG. 5 is a schematic view of a desk lifting device;
FIG. 6 is a schematic view of a part of the structure of the desk lifting device;
FIG. 7 is a schematic view of the lifting/lowering fixing member;
FIG. 8 is a schematic view of a main structure of a desk top;
FIG. 9 is a first view of a first structural view of a main portion of a desk top;
fig. 10 is a second structural view of the main body of the desk top.
In the figure: a desk support base 1; a support slat 1-1; connecting strips 1-2; 1-3 of a lifting sliding cavity; 1-4 of a limiting sliding opening; 1-5 of a lifting square column; gear rack I1-6; a desk lifting device 2; a fixed connecting plate 2-1; a gear shaft 2-2; gear I2-3; rotating the cylinder 2-4; 2-5 of labor-saving cylinder; 2-6 of a lifting square groove; gear II 2-7; 2-8 parts of a rear protection plate; front protective plates 2-9; 2-10 parts of pedal plate; a lifting fixing member 3; fixing a square column 3-1; gear rack II 3-2; 3-3 of a spring; 3-4 parts of a limiting plate; 3-5 of a semicircular handle; a desk top main body 4; a desktop main board 4-1; a storage chamber 4-2; connecting legs 4-3; lengthening the table top by 4-4; 4-5 of a rotating shaft; rotating the fixed plate 4-6; and 4-7 of a limiting nut.
Detailed Description
The first embodiment is as follows:
the present embodiment will be described with reference to fig. 1-10, and the present invention relates to the technical field of educational equipment, and more specifically to a lifting desk for practical classroom, which comprises a desk supporting base 1, a desk lifting device 2, a lifting fixing member 3 and a desk top main body 4, when the height of the device needs to be adjusted, a fixing square column 3-1 is pulled upwards to make a gear rack II3-2 disengage from a gear II2-7, a gear shaft 2-2 is rotated, the gear shaft 2-2 is respectively engaged with two gear racks I1-6 through two gears I2-3 to drive the desk top main body 4 to move up and down, thereby changing the height of the desktop main board 4-1, when there are too many articles on the desktop main board 4-1, the desktop 4-4 on both sides of the desktop main board 4-1 is rotated to lengthen 4-4, and the lengthened desktop 4-4 is parallel to the desktop main board 4-1, the two rotary fixing plates 4-6 are continuously rotated, the lengthened desktop 4-4 is limited by the rotary fixing plates 4-6, the lengthened desktop 4-4 is prevented from rotating downwards, and therefore the desktop mainboard 4-1 is lengthened;
a lifting desk for a practice classroom comprises a desk supporting base 1, a desk lifting device 2, a lifting fixing component 3 and a desk desktop main body 4, wherein the desk supporting base 1 is fixedly connected with the desk lifting device 2, the lifting fixing component 3 is slidably connected with the desk lifting device 2, and the desk desktop main body 4 is fixedly connected to the upper end of the desk supporting base 1.
The second embodiment is as follows:
this embodiment will be described below with reference to fig. 1 to 10, and this embodiment will further describe the first embodiment: the desk supporting base 1 comprises supporting strip plates 1-1, connecting strips 1-2, lifting sliding cavities 1-3, limiting sliding openings 1-4, lifting square columns 1-5 and gear strips I1-6, wherein the supporting strip plates 1-1 and the connecting strips 1-2 are respectively provided with two numbers, the supporting strip plates 1-1 play a supporting role, the connecting strips 1-2 play a connecting role, the two supporting strip plates 1-1 are respectively and fixedly connected with the left end and the right end of the two connecting strips 1-2, the upper ends of the two supporting strip plates 1-1 are respectively and fixedly connected with the lifting sliding cavities 1-3, the lifting sliding cavities 1-3 can provide a sliding space for the lifting square columns 1-5, the two lifting sliding cavities 1-3 are respectively provided with the limiting sliding openings 1-4, and the limiting sliding openings 1-4 can provide a sliding space for the gear strips I1-6, the lifting square columns 1-5 are provided with two lifting square columns 1-5, the two lifting square columns 1-5 are fixedly connected with gear strips I1-6, the gear strips I1-6 can drive the lifting square columns 1-5 to move up and down, and the two lifting square columns 1-5 and the two gear strips I1-6 are respectively connected in the two lifting sliding cavities 1-3 and the two limiting sliding openings 1-4 in a sliding mode.
The third concrete implementation mode:
the embodiment will be described with reference to fig. 1-10, and the desk lifting device 2 further described in the second embodiment in the present embodiment includes a fixed connection plate 2-1, a gear shaft 2-2, a gear I2-3, a rotating cylinder 2-4, a labor-saving cylinder 2-5, a lifting square groove 2-6, a gear II2-7, a rear protection plate 2-8, a front protection plate 2-9, and a pedal plate 2-10, wherein the left and right ends of the fixed connection plate 2-1 are respectively fixedly connected to two support strips 1-1, the fixed connection plate 2-1 plays a role in bearing and fixing, the fixed connection plate 2-1 is rotatably connected to the gear shaft 2-2, the gear shaft 2-2 can drive two gears I2-3 to rotate, the left and right ends of the gear shaft 2-2 are both fixedly connected to a gear I2-3, the rotary gear I2-3 can drive the gear rack I1-6 to move up and down, the two gears I2-3 are respectively in meshed transmission with the two gear racks I1-6, the right end of the gear shaft 2-2 is fixedly connected with a rotary cylinder 2-4, the rotary cylinder 2-4 can easily drive the gear shaft 2-2 to rotate, the upper side and the lower side of the right end of the rotary cylinder 2-4 are fixedly connected with labor-saving cylinders 2-5, the two labor-saving cylinders 2-5 can more easily drive the rotary cylinder 2-4 to rotate by being supported by fingers, a lifting square groove 2-6 is arranged on the fixed connecting plate 2-1, the lifting square groove 2-6 can provide a sliding space for the fixed square column 3-1, the middle end of the gear shaft 2-2 is fixedly connected with a gear II2-7, and the gear II2-7 can limit whether the gear shaft 2-2 rotates or not, the front end and the rear end of the fixed connecting plate 2-1 are respectively fixedly connected with a rear protective plate 2-8 and a front protective plate 2-9, the rear protective plate 2-8 and the front protective plate 2-9 play a role in protection, the rear end of the front protective plate 2-9 is fixedly connected with a pedal plate 2-10, and a user can place feet on the pedal plate 2-10, so that the user has a comfortable learning environment.
The fourth concrete implementation mode:
the third embodiment is further described with reference to fig. 1-10, in which the lifting fixing member 3 includes a fixing square column 3-1, a gear strip II3-2, a spring 3-3, a limiting plate 3-4 and a semicircular handle 3-5, the fixing square column 3-1 is slidably connected in a lifting square groove 2-6, the fixing square column 3-1 can provide a connecting space for the spring 3-3, the lower end of the fixing square column 3-1 is fixedly connected with a gear strip II3-2, the gear strip II3-2 is in meshing transmission with the gear II2-7, when the gear strip II3-2 is in meshing transmission with the gear II2-7, the gear shaft 2-2 is limited, the height of the whole device is fixed, the spring 3-3 is sleeved on the fixing square column 3-1, the spring 3-3 is positioned between the fixed connecting plate 2-1 and the gear strip II3-2, the spring 3-3 generates a downward force to push against the gear strip II3-2 by utilizing the elastic potential energy of the spring 3-3, the gear strip II3-2 is meshed with the gear II2-7, the upper end of the fixed square column 3-1 is fixedly connected with the limiting plate 3-4, the limiting plate 3-4 plays a limiting role, the upper end of the limiting plate 3-4 is fixedly connected with the semicircular handle 3-5, the semicircular handle 3-5 can be pulled to easily drive the gear strip II3-2 to move upwards through the fixed square column 3-1, so that the gear strip II3-2 is separated from the gear II2-7, and the height of the device can be adjusted by rotating the gear shaft 2-2.
The fifth concrete implementation mode:
the present embodiment is described below with reference to fig. 1 to 10, and the fourth embodiment is further described in the present embodiment, in which the desk top main body 4 includes a desktop main board 4-1, a storage cavity 4-2 and connecting legs 4-3, a user can write on the desktop main board 4-1 for office work, the lower end of the desktop main board 4-1 is fixedly connected with the storage cavity 4-2, some articles can be stored in the storage cavity 4-2, the left and right sides of the lower end of the storage cavity 4-2 are both fixedly connected with the connecting legs 4-3, the connecting legs 4-3 can drive the storage cavity 4-2 to move up and down, and the two connecting legs 4-3 are respectively and fixedly connected to the upper ends of the two lifting square columns 1-5.
The sixth specific implementation mode:
the present embodiment is described below with reference to fig. 1 to 10, and the fifth embodiment is further described in the present embodiment, wherein the desk top main body 4 further includes two lengthened desktops 4-4, two rotating shafts 4-5, two rotating fixing plates 4-6 and two limiting nuts 4-7, the two lengthened desktops 4-4 are respectively hinged to the left and right ends of the desktop main board 4-1, the lengthened desktops 4-4 can lengthen the desktop main board 4-1, so that different use scenarios, such as student learning or educational learning, can be adapted to, the left and right sides of the lower end of the desktop main board 4-1 are both fixedly connected with the rotating shafts 4-5, the rotating shafts 4-5 can provide a rotating axis for the rotating fixing plates 4-6, the two rotating shafts 4-5 are rotatably connected with rotating fixing plates 4-6, when the rotating fixing plates 4-6 are in contact with the lengthened table tops 4-4, the lengthened table tops 4-4 can be limited, the lengthened table tops 4-4 are prevented from rotating downwards, the lower ends of the two rotating shafts 4-5 are respectively connected with limiting nuts 4-7 through threads, the limiting nuts 4-7 can limit the rotating fixing plates 4-6, and the rotating fixing plates 4-6 are prevented from sliding downwards to be separated from the rotating shafts 4-5.
The utility model relates to a theory of operation of lift desk in practice classroom:
when the height of the device needs to be adjusted, the semicircular handle 3-5 is pulled upwards, the semicircular handle 3-5 drives the gear strip II3-2 to move upwards through the fixed square column 3-1, the gear strip II3-2 is separated from the gear II2-7, fingers are propped against the two labor-saving cylinders 2-5 to rotate, the two labor-saving cylinders 2-5 drive the gear shaft 2-2 to rotate through the rotating cylinders 2-4, the rotating gear shaft 2-2 is respectively meshed with the two gear strips I1-6 through the two gears I2-3 to drive the desktop main board 4-1 to move up and down through the two connecting legs 4-3 respectively, so that the height of the desktop main board 4-1 is changed, after the height is adjusted, the semicircular handle 3-5 is released, and the elastic potential energy of the spring 3-3 is utilized, the spring 3-3 generates a downward force to push against the gear strip II3-2, the gear strip II3-2 is meshed with the gear II2-7, the gear shaft 2-2 is limited at this time, the height of the whole device is fixed, when articles on the desktop main board 4-1 are too many, the lengthened desktops 4-4 on the two sides of the desktop main board 4-1 are rotated, the lengthened desktops 4-4 are parallel to the desktop main board 4-1, the two rotation fixing plates 4-6 are continuously rotated, the lengthened desktops 4-4 are limited by the rotation fixing plates 4-6, the lengthened desktops 4-4 are prevented from rotating downwards, and therefore the desktop main board 4-1 is lengthened.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides a lift desk in practice classroom, includes that the desk supports base (1), desk elevating gear (2), lift fixed component (3) and desk desktop main part (4), its characterized in that: the desk supporting base (1) is fixedly connected with the desk lifting device (2), the lifting fixing component (3) is connected with the desk lifting device (2) in a sliding mode, and the desk top body (4) is fixedly connected to the upper end of the desk supporting base (1).
2. The elevating desk of claim 1, wherein: the desk supporting base (1) comprises supporting strips (1-1), connecting strips (1-2), lifting sliding cavities (1-3), limiting sliding openings (1-4), lifting square columns (1-5) and gear strips I (1-6), wherein the number of the supporting strips (1-1) and the number of the connecting strips (1-2) are two, the two supporting strips (1-1) are respectively and fixedly connected to the left end and the right end of the two connecting strips (1-2), the upper ends of the two supporting strips (1-1) are respectively and fixedly connected with the lifting sliding cavities (1-3), the two lifting sliding cavities (1-3) are respectively provided with the limiting sliding openings (1-4), the number of the lifting square columns (1-5) is two, the gear strips I (1-6) are respectively and fixedly connected to the two lifting square columns (1-5), the two lifting square columns (1-5) and the two gear bars I (1-6) are respectively connected in the two lifting sliding cavities (1-3) and the two limiting sliding openings (1-4) in a sliding manner.
3. The elevating desk of claim 2, wherein: the desk lifting device (2) comprises a fixed connecting plate (2-1), a gear shaft (2-2), a gear I (2-3), a rotating cylinder (2-4), a labor-saving cylinder (2-5), a lifting square groove (2-6), a gear II (2-7), a rear protecting plate (2-8), a front protecting plate (2-9) and a pedal plate (2-10), wherein the left end and the right end of the fixed connecting plate (2-1) are respectively and fixedly connected with two supporting strip plates (1-1), the fixed connecting plate (2-1) is rotatably connected with the gear shaft (2-2), the left end and the right end of the gear shaft (2-2) are respectively and fixedly connected with the gear I (2-3), and the two gears I (2-3) are respectively in meshing transmission with the two gear strips I (1-6), the right end of the gear shaft (2-2) is fixedly connected with a rotating cylinder (2-4), the upper side and the lower side of the right end of the rotating cylinder (2-4) are fixedly connected with labor-saving cylinders (2-5), a lifting square groove (2-6) is arranged on a fixed connecting plate (2-1), the middle end of the gear shaft (2-2) is fixedly connected with a gear II (2-7), the front end and the rear end of the fixed connecting plate (2-1) are respectively fixedly connected with a rear protective plate (2-8) and a front protective plate (2-9), and the rear end of the front protective plate (2-9) is fixedly connected with a pedal plate (2-10).
4. The elevating desk of claim 3, wherein: the lifting fixing component (3) comprises a fixed square column (3-1), a gear strip II (3-2), a spring (3-3), a limiting plate (3-4) and a semicircular handle (3-5), the fixed square column (3-1) is connected in the lifting square groove (2-6) in a sliding mode, a gear strip II (3-2) is fixedly connected to the lower end of the fixed square column (3-1), the gear strip II (3-2) is in meshing transmission with the gear II (2-7), a spring (3-3) is sleeved on the fixed square column (3-1), the spring (3-3) is located between the fixed connecting plate (2-1) and the gear strip II (3-2), a limiting plate (3-4) is fixedly connected to the upper end of the fixed square column (3-1), and a semicircular handle (3-5) is fixedly connected to the upper end of the limiting plate (3-4).
5. The elevating desk of claim 4, wherein: the desk desktop main body (4) comprises a desktop main board (4-1), a storage cavity (4-2) and connecting legs (4-3), the lower end of the desktop main board (4-1) is fixedly connected with the storage cavity (4-2), the left side and the right side of the lower end of the storage cavity (4-2) are fixedly connected with the connecting legs (4-3), and the two connecting legs (4-3) are respectively and fixedly connected to the upper ends of the two lifting square columns (1-5).
6. The elevating desk of claim 5, wherein: the desk desktop main body (4) further comprises two lengthened desktops (4-4), two rotating shafts (4-5), two rotating fixing plates (4-6) and limiting nuts (4-7), the two lengthened desktops (4-4) are respectively hinged to the left end and the right end of the desktop main board (4-1), the rotating shafts (4-5) are fixedly connected to the left side and the right side of the lower end of the desktop main board (4-1), the rotating fixing plates (4-6) are rotatably connected to the two rotating shafts (4-5), and the limiting nuts (4-7) are connected to the lower ends of the two rotating shafts (4-5) through threads.
CN201920530698.6U 2019-04-18 2019-04-18 Lifting desk for practice classroom Expired - Fee Related CN210158274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920530698.6U CN210158274U (en) 2019-04-18 2019-04-18 Lifting desk for practice classroom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920530698.6U CN210158274U (en) 2019-04-18 2019-04-18 Lifting desk for practice classroom

Publications (1)

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CN210158274U true CN210158274U (en) 2020-03-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112167830A (en) * 2020-10-31 2021-01-05 江西志超科教设备有限公司 Lifting desk capable of being spliced
CN112315207A (en) * 2020-11-18 2021-02-05 江西腾科实业有限公司 Changeable teaching desk of desktop area

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112167830A (en) * 2020-10-31 2021-01-05 江西志超科教设备有限公司 Lifting desk capable of being spliced
CN112167830B (en) * 2020-10-31 2022-07-12 江西志超教育装备集团有限公司 Lifting desk capable of being spliced
CN112315207A (en) * 2020-11-18 2021-02-05 江西腾科实业有限公司 Changeable teaching desk of desktop area

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