CN112369848A - Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof - Google Patents

Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof Download PDF

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Publication number
CN112369848A
CN112369848A CN202011259493.2A CN202011259493A CN112369848A CN 112369848 A CN112369848 A CN 112369848A CN 202011259493 A CN202011259493 A CN 202011259493A CN 112369848 A CN112369848 A CN 112369848A
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CN
China
Prior art keywords
intelligent blackboard
frame body
fixing device
blackboard
limiting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011259493.2A
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Chinese (zh)
Inventor
朱玉荣
汤鹏飞
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Anhui Wenxiang Information Technology Co Ltd
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Anhui Wenxiang Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Wenxiang Information Technology Co Ltd filed Critical Anhui Wenxiang Information Technology Co Ltd
Priority to CN202011259493.2A priority Critical patent/CN112369848A/en
Publication of CN112369848A publication Critical patent/CN112369848A/en
Withdrawn legal-status Critical Current

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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
    • A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
    • A47B97/04—Easels or stands for blackboards or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

The invention discloses an intelligent blackboard installation support convenient to incline and fix and a using method thereof, and relates to the technical field of intelligent blackboard installation. The invention comprises a bottom frame, upright posts and a limiting frame; the underframe comprises a lower frame body, an upper frame body and a plurality of support rods; two sides of three transverse plates of the upper frame body are provided with sliding grooves; the three transverse plates of the upper frame body are respectively provided with a sliding block in a sliding way; the upper surface of the sliding block is provided with an intelligent blackboard lower edge fixing device; an intelligent blackboard upper edge fixing device is slidably arranged on the upright post; the upper surfaces of the three transverse plates of the limiting frame are provided with semicircular limiting balls corresponding to the through holes. According to the invention, the upper edge fixing device of the intelligent blackboard capable of sliding left and right is arranged on the chassis, the limiting mechanism is formed by the semicircular limiting balls to fix the lower edge of the intelligent blackboard, the upper edge fixing device of the intelligent blackboard is arranged on the upright stanchion, the inclination angle of the intelligent blackboard is adjusted by stepping on the pedal, so that the electronic elements are installed on the intelligent blackboard, the operation is convenient, and the damage caused by falling of the blackboard is avoided.

Description

Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof
Technical Field
The invention belongs to the technical field of intelligent blackboard installation, and particularly relates to an intelligent blackboard installation support convenient to incline and fix and a use method thereof.
Background
With the increasing popularization of electronic intelligent products, the technology change of the education equipment industry is being carried out, and under the influence of the intelligent trend of teaching tools, the intelligent blackboard is popularized in most teaching environments and gradually exposes the corners of the head.
The wisdom blackboard includes the electronic flat board to and be used for the clipboard of writing on the blackboard, the electronic flat board is mostly the touch display device of large size, and the clipboard is generally two, and the symmetry sets up the both sides at the electronic flat board. Generally speaking, the electronic flat plate has a large mass, and the traditional method for installing the electronic display device by the top hook often causes the intelligent blackboard to be inconvenient in the installation process and has poor safety in the installation process. At present, the installation of the intelligent blackboard is usually realized by adopting a mode that a hanging frame is matched with a force bearing part. For example, the invention provides a Chinese patent document named as a blackboard suspension device, a blackboard and an installation method (2019100794526) thereof, the suspension device of the application comprises a hanger component and a bearing part, the hanger component is arranged on a wall body, and a hanging groove is arranged on the hanger component; the bearing piece is arranged on the back of the blackboard and detachably embedded into the hanging groove to hang and fix the blackboard. The application also discloses an assembling method of the blackboard, which comprises the steps of firstly installing the electronic flat plate on a wall body through a bearing part and then hanging the writing boards on the two sides on the wall body.
However, when the intelligent blackboard is installed, the electronic flat board is large in quality and smooth in appearance, no good force application point is arranged on the support frame, and meanwhile, the intelligent blackboard easily slides down due to the fact that various components need to be installed when the intelligent blackboard is assembled, the intelligent blackboard is damaged by falling, and loss is caused, so that the electronic flat board is difficult to install.
Disclosure of Invention
The invention aims to provide a smart blackboard installing support convenient to incline and fix and a using method thereof.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an intelligent blackboard installing support convenient to incline and fix, which comprises an underframe, a plurality of stand columns and a limiting frame, wherein the stand columns and the limiting frame are positioned on one side of the upper surface of the underframe;
the underframe comprises a lower frame body, an upper frame body and a plurality of support rods fixed between the lower frame body and the upper frame body; the lower frame body and the upper frame body are of a structure of a frame body shaped like a Chinese character 'ri';
a plurality of through holes are formed in the three transverse plates of the upper frame body at equal intervals; two sides of the three transverse plates of the upper frame body are provided with sliding grooves; the three transverse plates of the upper frame body are respectively provided with a sliding block in a sliding manner; the upper surface of the sliding block is provided with an intelligent blackboard lower edge fixing device; the lower edge fixing device of the intelligent blackboard is an L-shaped plate; a spring is fixedly connected between one side surface of the L-shaped plate and the sliding block;
a T-shaped groove is formed in one surface of the upright post; an intelligent blackboard upper edge fixing device is slidably mounted on the upright post;
the limiting frame is an E-shaped frame body; one end of each of the three transverse plates of the E-shaped frame body is movably arranged on a vertical rod of the upper frame body; the other ends of the three transverse plates of the E-shaped frame body are connected with a vertical plate; semicircular limiting balls corresponding to the through holes are arranged on the upper surfaces of the three transverse plates of the E-shaped frame body; a spring is fixed on the upper surface of the limiting frame; the upper end of the spring is fixed on the lower surface of the upper frame body.
Furthermore, three transverse edges of the lower frame body are provided with grooves; and a through groove is formed in the supporting rod on the front side of the underframe.
Furthermore, the sliding block is a U-shaped template; limiting plates are arranged on two opposite sides of the bottom of the sliding block; the sliding block is matched with the sliding groove through a limiting plate and is slidably mounted on the transverse plate of the upper frame body.
Further, the length of the sliding block is smaller than the distance between two adjacent through holes, and when the semicircular limiting balls extend out of the through holes, the semicircular limiting balls on two sides of the sliding block limit the sliding block.
Furthermore, a pedal is arranged in the middle of a vertical plate of the limiting frame; the three transverse plates of the pedal and the limiting frame are respectively positioned at two sides of the vertical plate; one end of the pedal penetrates through the through groove and is arranged on the outer side of the underframe.
Furthermore, the fixing device on the upper edge of the intelligent blackboard is a rod body; a stepped groove is formed in one side of the upper edge fixing device of the intelligent blackboard; a pressing and fastening device is arranged in the stepped groove; a plurality of T-shaped sliding blocks are movably arranged on the intelligent blackboard at equal intervals along one side of the fixing device; the mutual matching sliding installation of the T-shaped sliding block and the T-shaped groove is arranged on the stand column along the fixing device on the intelligent blackboard.
Further, the compressing and fastening device is a screw rod; one end of the screw penetrates through the fixing device on the upper edge of the intelligent blackboard and is arranged in the stepped groove, and a rubber soft cushion is arranged at one end arranged in the stepped groove; and a rotary handle is arranged at the other end of the screw rod.
The invention relates to a use method of an intelligent blackboard installation bracket convenient for inclined fixation, which comprises the following steps:
step S1: the pedal is stepped by feet, so that the semicircular limiting ball is separated from the through hole;
step S2; placing the lower edge of the intelligent blackboard on the lower edge fixing device of the intelligent blackboard;
step S3; the upper edge of the intelligent blackboard is clamped in the fixing device of the upper edge of the intelligent blackboard by inclining the intelligent blackboard;
step S4; the movable sliding block inclines the intelligent blackboard to a specified angle, and the upper edge of the intelligent blackboard slides up and down along the upright post along the fixing device;
step S5; after the designated angle of the intelligent blackboard is adjusted, the pedal is loosened by feet, and the limiting frame can be lifted up under the action of the elastic force of the spring until the semicircular limiting ball enters the through hole;
step S6; the slider forms spacingly between two semicircle spacing balls to fix the wisdom blackboard on the installing support.
Further, in step S2, the display surface of the intelligent blackboard faces the mounting bracket, and the back surface of the intelligent blackboard faces upward.
Further, in step S3, when the upper edge of the intelligent blackboard is fixed in the upper edge fixing device of the intelligent blackboard, the pressing and fastening device is screwed to tightly attach the rubber cushion to the intelligent blackboard.
The invention has the following beneficial effects:
according to the invention, the upper edge fixing device of the intelligent blackboard capable of sliding left and right is arranged on the chassis, the limiting mechanism is formed by the semicircular limiting balls to fix the lower edge of the intelligent blackboard, the upper edge fixing device of the intelligent blackboard is arranged on the upright stanchion, the inclination angle of the intelligent blackboard is adjusted by stepping on the pedal, so that the electronic elements are installed on the intelligent blackboard, the operation is convenient, and the damage caused by falling of the blackboard is avoided.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view showing a structure of a mounting bracket for an intelligent blackboard in a state where a limit frame is pressed down;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of the mounting bracket of the intelligent blackboard in the recovery state of the position-limiting frame;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a schematic view of the fixing device for the upper edge of the intelligent blackboard;
FIG. 6 is a side view of FIG. 5;
FIG. 7 is a schematic view of a slider structure;
in the drawings, the components represented by the respective reference numerals are listed below:
1-underframe, 2-upright post, 3-lower frame, 4-upper frame, 5-support rod, 6-limit frame, 7-slide block, 8-intelligent blackboard upper edge fixing device, 102-, 201-T-shaped groove, 301-groove, 401-through hole, 402-sliding groove, 501-through groove, 601-vertical plate, 602-semicircular limit ball, 603-pedal, 701-intelligent blackboard lower edge fixing device, 702-spring, 703-limit plate, 801-step groove, 802-pressing fastening device, 803-T-shaped slide block, 804-rubber cushion and 805-rotating handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention relates to a mounting bracket for an intelligent blackboard convenient for inclined fixing, which comprises a bottom frame 1, a plurality of upright posts 2 positioned on one side of the upper surface of the bottom frame 1, and a limiting frame 6;
the underframe 1 comprises a lower frame body 3, an upper frame body 4 and a plurality of support rods 5 fixed between the lower frame body 3 and the upper frame body 4; the lower frame body 3 and the upper frame body 4 are of a structure of a frame body shaped like a Chinese character 'ri';
a plurality of through holes 401 are arranged on the three transverse plates of the upper frame body 4 at equal intervals; two sides of the three transverse plates of the upper frame body 4 are provided with sliding grooves 402; the three transverse plates of the upper frame body 4 are all provided with sliding blocks 7 in a sliding manner; the upper surface of the sliding block 7 is provided with an intelligent blackboard lower edge fixing device 701; the lower edge fixing device 701 of the intelligent blackboard is an L-shaped plate; a spring 702 is fixedly connected between one side surface of the L-shaped plate and the sliding block 7;
a T-shaped groove 201 is formed in one surface of the upright post 2; an intelligent blackboard upper edge fixing device 8 is slidably arranged on the upright post 2;
the limiting frame 6 is an E-shaped frame body; one end of three transverse plates of the E-shaped frame body is movably arranged on a vertical rod of the upper frame body 4; the other ends of the three transverse plates of the E-shaped frame body are connected with a vertical plate 601; semicircular limiting balls 602 corresponding to the through holes 401 are arranged on the upper surfaces of the three transverse plates of the E-shaped frame body; a spring is fixed on the upper surface of the limit frame 6; the upper end of the spring is fixed on the lower surface of the upper frame 4.
Wherein, three transverse edges of the lower frame body 3 are provided with grooves 301; the strut 5 at the front side of the underframe 1 is provided with a through groove 501.
Wherein, the sliding block 7 is a U-shaped template; limiting plates 703 are arranged on two opposite sides of the bottom of the sliding block 7; the slide block 7 is slidably mounted on the transverse plate of the upper frame 4 by the cooperation of the limit plate 703 and the chute 402.
The length of the slider 7 is less than the distance between two adjacent through holes 401, and when the semicircular limiting balls 602 extend out of the through holes 401, the semicircular limiting balls 602 on two sides of the slider 7 limit the slider 7.
Wherein, the middle part of the vertical plate 601 of the limit frame 6 is provided with a pedal 603; the three transverse plates of the pedal 603 and the limiting frame 6 are respectively positioned at two sides of the vertical plate 601; one end of the pedal 603 is disposed outside the chassis 1 through the through-slot 501.
Wherein, the fixing device 8 on the upper edge of the intelligent blackboard is a rod body; a stepped groove 801 is formed in one side of the fixing device 8 on the upper edge of the intelligent blackboard; a pressing and fastening device 802 is arranged in the stepped groove 801; a plurality of T-shaped sliding blocks 803 are movably arranged on the intelligent blackboard at equal intervals along one side of the fixing device 8; the upper edge of the intelligent blackboard is slidably mounted on the upright post 2 through the mutual matching of the T-shaped sliding block 803 and the T-shaped groove 201 along the fixing device 8.
Wherein, the compressing and fastening device 802 is a screw rod; one end of the screw rod penetrates through the upper edge fixing device 8 of the intelligent blackboard and is arranged in the stepped groove 801, and a rubber soft pad 804 is arranged at one end arranged in the stepped groove 801; the other end of the screw is provided with a rotating handle 805.
The invention relates to a use method of an intelligent blackboard installation bracket convenient for inclined fixation, which comprises the following steps:
step S1: the pedal is stepped by feet, so that the semicircular limiting ball is separated from the through hole;
step S2; placing the lower edge of the intelligent blackboard on the lower edge fixing device of the intelligent blackboard;
step S3; the upper edge of the intelligent blackboard is clamped in the fixing device of the upper edge of the intelligent blackboard by inclining the intelligent blackboard;
step S4; the movable sliding block inclines the intelligent blackboard to a specified angle, and the upper edge of the intelligent blackboard slides up and down along the upright post along the fixing device;
step S5; after the designated angle of the intelligent blackboard is adjusted, the pedal is loosened by feet, and the limiting frame can be lifted up under the action of the elastic force of the spring until the semicircular limiting ball enters the through hole;
step S6; the slider forms spacingly between two semicircle spacing balls to fix the wisdom blackboard on the installing support.
In step S2, the display surface of the intelligent blackboard faces the mounting bracket, and the back surface of the intelligent blackboard faces upward.
In step S3, when the upper edge of the intelligent blackboard is fixed in the upper edge fixing device, the pressing and fastening device is screwed to tightly attach the rubber cushion to the intelligent blackboard.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. An intelligent blackboard installing support convenient to incline and fix is characterized by comprising a bottom frame (1), a plurality of stand columns (2) and a limiting frame (6), wherein the stand columns (2) are positioned on one side of the upper surface of the bottom frame (1);
the underframe (1) comprises a lower frame body (3), an upper frame body (4) and a plurality of support rods (5) fixed between the lower frame body (3) and the upper frame body (4); the lower frame body (3) and the upper frame body (4) are of a structure of a Chinese character 'ri';
a plurality of through holes (401) are formed in the three transverse plates of the upper frame body (4) at equal intervals; two sides of the three transverse plates of the upper frame body (4) are provided with sliding grooves (402); the three transverse plates of the upper frame body (4) are provided with sliding blocks (7) in a sliding manner; the upper surface of the sliding block (7) is provided with an intelligent blackboard lower edge fixing device (701); the lower edge fixing device (701) of the intelligent blackboard is an L-shaped plate; a spring (702) is fixedly connected between one side surface of the L-shaped plate and the sliding block (7);
one surface of the upright post (2) is provided with a T-shaped groove (201); an intelligent blackboard upper edge fixing device (8) is slidably mounted on the upright post (2);
the limiting frame (6) is an E-shaped frame body; one end of each of three transverse plates of the E-shaped frame body is movably arranged on a vertical rod of the upper frame body (4); the other ends of the three transverse plates of the E-shaped frame body are connected with a vertical plate (601); semi-circular limiting balls (602) corresponding to the through holes (401) are arranged on the upper surfaces of the three transverse plates of the E-shaped frame body; a spring is fixed on the upper surface of the limiting frame (6); the upper end of the spring is fixed on the lower surface of the upper frame body (4).
2. The intelligent blackboard installation bracket convenient for inclination fixing according to claim 1, wherein three transverse edges of the lower frame body (3) are provided with grooves (301); a through groove (501) is formed in the supporting rod (5) on the front side of the underframe (1).
3. The intelligent blackboard installing support convenient to incline and fix according to claim 1, characterized in that the slider (7) is a U-shaped plate; limiting plates (703) are arranged on two opposite sides of the bottom of the sliding block (7); the sliding block (7) is matched with the sliding groove (402) through a limiting plate (703) and is slidably mounted on a transverse plate of the upper frame body (4).
4. The intelligent blackboard mounting bracket convenient for inclination fixing according to claim 3, wherein the length of the slider (7) is less than the distance between two adjacent through holes (401), and when the semicircular limiting balls (602) extend out of the through holes (401), the semicircular limiting balls (602) on two sides of the slider (7) limit the slider (7).
5. The intelligent blackboard mounting bracket convenient for inclined fixation according to claim 1, wherein a pedal (603) is arranged in the middle of the vertical plate (601) of the limiting frame (6); the three transverse plates of the pedal (603) and the limiting frame (6) are respectively positioned at two sides of the vertical plate (601); one end of the pedal (603) penetrates through the through groove (501) and is arranged on the outer side of the underframe (1).
6. The intelligent blackboard installation bracket convenient for inclination fixing according to claim 1, wherein the intelligent blackboard upper edge fixing device (8) is a rod body; a stepped groove (801) is formed in one side of the upper edge fixing device (8) of the intelligent blackboard; a pressing and fastening device (802) is arranged in the stepped groove (801); a plurality of T-shaped sliding blocks (803) are movably arranged on the intelligent blackboard at equal intervals along one side of the fixing device (8); the intelligent blackboard is characterized in that the intelligent blackboard upper edge fixing device (8) is slidably mounted on the upright post (2) through the mutual matching of the T-shaped sliding block (803) and the T-shaped groove (201).
7. The intelligent blackboard mounting bracket convenient for inclined fixation according to claim 6, wherein the pressing and fastening device (802) is a screw; one end of the screw rod penetrates through the fixing device (8) on the upper edge of the intelligent blackboard and is arranged in the stepped groove (801), and a rubber soft pad (804) is arranged at one end arranged in the stepped groove (801); and a rotary handle (805) is arranged at the other end of the screw rod.
8. The use method of the intelligent blackboard installation support convenient for inclination and fixation is characterized by comprising the following steps:
step S1: the pedal is stepped by feet, so that the semicircular limiting ball is separated from the through hole;
step S2; placing the lower edge of the intelligent blackboard on the lower edge fixing device of the intelligent blackboard;
step S3; the upper edge of the intelligent blackboard is clamped in the fixing device of the upper edge of the intelligent blackboard by inclining the intelligent blackboard;
step S4; the movable sliding block inclines the intelligent blackboard to a specified angle, and the upper edge of the intelligent blackboard slides up and down along the upright post along the fixing device;
step S5; after the designated angle of the intelligent blackboard is adjusted, the pedal is loosened by feet, and the limiting frame can be lifted up under the action of the elastic force of the spring until the semicircular limiting ball enters the through hole;
step S6; the slider forms spacingly between two semicircle spacing balls to fix the wisdom blackboard on the installing support.
9. The intelligent blackboard installation bracket convenient for inclined fixation and the use method thereof according to claim 1, wherein in the step S2, the display surface of the intelligent blackboard faces to the installation bracket, and the back surface of the intelligent blackboard faces upwards.
10. The intelligent blackboard installation bracket convenient for inclined fixation and the use method thereof as claimed in claim 1, wherein in step S3, when the upper edge of the intelligent blackboard is fixed in the fixing device, the pressing and fastening device is screwed to tightly press the rubber cushion against the intelligent blackboard.
CN202011259493.2A 2020-11-12 2020-11-12 Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof Withdrawn CN112369848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011259493.2A CN112369848A (en) 2020-11-12 2020-11-12 Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011259493.2A CN112369848A (en) 2020-11-12 2020-11-12 Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof

Publications (1)

Publication Number Publication Date
CN112369848A true CN112369848A (en) 2021-02-19

Family

ID=74583083

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011259493.2A Withdrawn CN112369848A (en) 2020-11-12 2020-11-12 Intelligent blackboard mounting bracket convenient to incline and fix and using method thereof

Country Status (1)

Country Link
CN (1) CN112369848A (en)

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Application publication date: 20210219

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