CN211092406U

CN211092406U - Multimedia teacher's desk with high space utilization rate

Info

Publication number: CN211092406U
Application number: CN201921574067.0U
Authority: CN
Inventors: 崔金敏; 李�杰
Original assignee: Guangzhou Focus Digital Technology Co ltd
Current assignee: Guangzhou Focus Digital Technology Co ltd
Priority date: 2019-09-21
Filing date: 2019-09-21
Publication date: 2020-07-28
Anticipated expiration: 2029-09-21

Abstract

The utility model discloses a multimedia lectern that space utilization is high, including foundation ditch, lead screw, lectern and P L C, bolt fixedly connected with fixed plate is passed through to foundation ditch lower half inner wall both sides, fixed plate top both sides central authorities rotate through the bearing and are connected with the lead screw, foundation ditch bottom inner wall corresponds lead screw below and passes through bolt fixedly connected with gear motor, the utility model discloses a lead screw, diaphragm and gear motor that set up have realized when need not to use the lectern, rotate through gear motor and drive the lead screw and rotate, convert the rotary motion of lead screw into the linear motion of diaphragm under screw-nut's effect to make the lectern descend inside the foundation ditch, improved space utilization, through the electronic slide rail and the flexible apron that set up, realized that it shelters from to the lectern that gets into in the foundation ditch to drive flexible apron through electronic slide rail removal, prevent that the dust from causing the influence with sunshine lectern, improved the life of lectern.

Description

Multimedia teacher's desk with high space utilization rate

Technical Field

The utility model relates to a multimedia lectern technical field specifically is a multimedia lectern that space utilization is high.

Background

The multimedia teaching desk is an integrated platform for effectively integrating, managing, preventing burglary and preventing damage of multimedia teaching equipment, and is an important tool for multimedia teaching. The multimedia teacher desk belongs to a continuously-changed device, and can be classified in various modes according to the development history of the multimedia teacher desk, the types of the installed devices and different use environments.

However, the conventional multimedia lectern has some disadvantages in the use process, such as:

1. traditional multimedia lectern generally places subaerial, is less than some interactive teaching, when carrying out student's scene deduction interaction, often needs great open space, and at this moment multimedia lectern often occupies great ground area, causes the deduction place narrow and small, and when carrying out ground transport operation, causes the lectern to collide with easily in the handling simultaneously.

2. When traditional multimedia lectern was placed for a long time on ground, the ground dust received sunshine simultaneously great easy to the electronic component of lectern inside ageing with higher speed, influence the life of lectern.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multimedia lectern that space utilization is high to solve the problem that proposes among the above-mentioned background art.

To achieve the above object, the utility model provides a multimedia lectern that space utilization is high, including foundation ditch, lead screw, lectern and P L C, there is the fixed plate bolt fixedly connected with in foundation ditch lower half inner wall both sides, fixed plate top both sides central authorities are connected with the lead screw through the bearing rotation, there is gear motor through bolt fixedly connected with below the corresponding lead screw of foundation ditch bottom inner wall, gear motor power output shaft one end is through shaft coupling and lead screw bottom fixed connection, the lead screw top is connected with the bearing frame through the bearing rotation, bearing frame one side is through bolt fixed connection on the foundation ditch inner wall, the lead screw corresponds between fixed plate and the bearing frame part and is connected with the diaphragm through screw-nut rotation, diaphragm upper surface central authorities are through bolt fixedly connected with lectern through bolt fixedly connected with, fixed plate upper surface central authorities are through the spacing buffer board of screw fixedly connected with, foundation ditch both sides inner wall corresponds the bearing frame top through bolt fixedly connected with electronic slide rail, there is flexible apron through joint sliding connection between the electronic slide rail, the foundation ditch corresponds perpendicular to install the first one half of bearing frame and has electronic flexible bracing piece through bolt fixedly connected with the telescopic support rod of electronic signal input end and P L C signal output end electric connection, electronic signal output end and P63.

Further, the top of the electric telescopic supporting rod is fixedly connected with a proximity switch sensor through a screw, and the signal output end of the proximity switch sensor of the electric telescopic supporting rod is electrically connected with the signal input end of P L C for controlling the time for extending the piston rod of the electric telescopic supporting rod.

Further, the shortest vertical distance between the top of the piston rod and the transverse plate is 3-8cm when the electric telescopic support rod is in the shortest state, and the maximum stroke of the piston rod of the electric telescopic support rod is half of the width of the transverse plate and is used for preventing the electric telescopic support rod from colliding with the transverse plate and the electric telescopic support rod on the opposite side.

Furthermore, a clamping groove is formed in the joint of the foundation pit corresponding to the telescopic cover plate and used for firm connection of the telescopic cover plate.

Furthermore, the two ends of the electric slide rail are fixedly connected with limiting blocks through welding for preventing the telescopic cover plate from being separated from the track.

Furthermore, flexible apron passes through joint fixedly connected with sealing strip with the foundation ditch junction for dustproof and waterproof.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a lead screw, diaphragm and gear motor that set up have realized when need not to use the lectern, rotate through gear motor and drive the lead screw and rotate, convert the rotary motion of lead screw into the linear motion of diaphragm under screw-nut's effect to inside making the lectern descend the foundation ditch, improved space utilization.

2. The utility model discloses an electronic slide rail and the flexible apron that set up have realized moving through electronic slide rail and have driven flexible apron and remove and shelter from to the lectern that gets into in the foundation ditch, prevent that dust and sunshine are talkbacked the table and are caused the influence, have improved the life of lectern.

Drawings

FIG. 1 is a schematic sectional view of the overall front view structure of the present invention;

FIG. 2 is a schematic sectional view of the overall left-side view structure of the present invention;

FIG. 3 is a schematic sectional view of the overall top view structure of the present invention;

fig. 4 is a schematic view of the electronic component connection control system of the present invention.

In the figures 1-4, the foundation pit is 1, the fixing plate is 2, the transverse plate is 3, the screw rod is 4, the bearing seat is 5, the telescopic cover plate is 6, the lectern is 7, the electric slide rail is 8, the speed reducing motor is 9, the limiting buffer plate is 10, the electric telescopic support rod is 11, and the P L C is 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model provides a technical scheme, a multimedia lectern with high space utilization, including foundation ditch 1, lead screw 4, lectern 7 and P L C12, the P L C12 model is S7-200, foundation ditch 1 lower half inner wall both sides are through bolt fixedly connected with fixed plate 2, fixed plate 2 top both sides central authorities are connected with lead screw 4 through the bearing rotation, through bolt fixedly connected with gear motor 9 below the corresponding lead screw 4 of foundation ditch 1 bottom inner wall, gear motor 9 power output shaft one end is through shaft coupling and lead screw 4 bottom fixed connection, lead screw 4 top is connected with bearing frame 5 through the bearing rotation, be used for fixed lead screw 4, bearing frame 5 one side is through bolt fixed connection on foundation ditch 1 inner wall, the part is connected with diaphragm 3 through the lead screw nut rotation between lead screw 4 corresponds fixed plate 2 and the bearing frame 5, be used for turning the rotary motion of lead screw 4 into the linear motion of diaphragm 3 through the lead screw nut, diaphragm 3 upper surface central authorities are connected with spacing buffer table 7 through bolt fixedly connected with, fixed plate 2 upper surface central authorities through bolt fixedly connected with spacing buffer board 10, be used for buffering and the effect and the supporting rod, the corresponding to the telescopic signal output end of the sliding connection of the sliding rail 358 of the telescopic signal of the sliding connection of the supporting rod, the supporting rod 3, the supporting rod is connected with the electric signal input end of the corresponding to the telescopic signal input end of the electronic 358 through bolt connected with the supporting rod 3 through the telescopic signal input end of the telescopic.

The top of the electric telescopic supporting rod 11 is fixedly connected with a proximity switch sensor through a screw, the signal output end of the proximity switch sensor of the electric telescopic supporting rod 11 is electrically connected with the signal input end of a P L C12, the electric telescopic supporting rod 11 is used for controlling the time when a piston rod of the electric telescopic supporting rod 11 extends out, the shortest vertical distance between the top of the piston rod and a transverse plate 3 is 3-8cm when the electric telescopic supporting rod 11 is in the shortest state, the maximum stroke of the piston rod of the electric telescopic supporting rod 11 is half of the width of the transverse plate 3, the electric telescopic supporting rod 11 is used for preventing the electric telescopic supporting rod 11 from colliding with the transverse plate 3 and the electric telescopic supporting rod 11 on the opposite side, a clamping groove is formed in the joint of the foundation pit 1 corresponding to the telescopic cover plate 6, the electric slide rail 8 is firmly connected with a limiting block through.

The working principle is that when the teaching desk is used, when the teaching desk 7 is not needed, all piston rods of the electric telescopic supporting rods 11 are controlled to retract through the P L C12, the speed reducing motor 9 is controlled to rotate in the forward direction to drive the screw rod 4 to rotate, the rotary motion of the screw rod 4 is converted into the linear downward motion of the transverse plate 3 under the action of the screw nut, so that the teaching desk 7 descends into the foundation pit 1, then the electric sliding rail 8 is controlled to drive the telescopic cover plate 6 to move to shield the teaching desk 7 entering the foundation pit 1, dust and sunlight are prevented from influencing the teaching desk 7, the service life of the teaching desk 7 is prolonged, the space utilization rate is improved, when the teaching desk 7 is needed, the electric telescopic cover plate 6 of the electric sliding rail 8 is controlled to open through the P L C12, the speed reducing motor 9 is controlled to rotate in the reverse direction, the transverse plate 3 is driven to move upwards, when the proximity switch sensor on the electric telescopic supporting rods 11 ascends to the designated position, the transverse plate 3 is controlled to stretch out through the P L C12, the electric telescopic supporting rods 11, and the bottom surface of the teaching desk is sensed to stretch out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multimedia lectern that space utilization is high, includes foundation ditch (1), lead screw (4), lectern (7) and P L C (12), there is fixed plate (2) bolt fixedly connected with in foundation ditch (1) lower half inner wall both sides, its characterized in that fixed plate (2) top both sides central authorities rotate through the bearing and are connected with lead screw (4), there is gear motor (9) bolt fixedly connected with below foundation ditch (1) bottom inner wall corresponds lead screw (4), gear motor (9) power output shaft one end is passed through shaft coupling and lead screw (4) bottom fixed connection, lead screw (4) top is connected with bearing frame (5) through the bearing rotation, bolt fixed connection is passed through on bearing frame (5) one side on foundation ditch (1) inner wall, part is rotated through the screw-nut between lead screw (4) corresponding fixed plate (2) and bearing frame (5) and is connected with diaphragm (3), diaphragm (3) upper surface central authorities pass through bolt fixedly connected with lectern (7) bolt fixedly connected with through bolt fixedly connected with, there is electronic signal input end (3611) through bolt fixedly connected with telescopic signal output end (3611) and telescopic signal output end (3611) through bolt fixedly connected with the vertical signal input end (3611) through bolt (6) and the telescopic signal input end (3611) the telescopic signal output end of foundation ditch (3611), the telescopic signal input end is connected with the telescopic signal input end (368) through bolt fixedly connected with the foundation ditch (6) through the telescopic signal input end (3611C 6).

2. The multimedia lectern with high space utilization according to claim 1, wherein a proximity switch sensor is fixedly connected above the electric telescopic support rod (11) through a screw, and a signal output end of the proximity switch sensor of the electric telescopic support rod (11) is electrically connected with a signal input end of P L C (12).

3. The multimedia lectern of claim 1, wherein: when the electric telescopic supporting rod (11) is in the shortest state, the shortest vertical distance between the top of the piston rod and the transverse plate (3) is 3-8cm, and the maximum stroke of the piston rod of the electric telescopic supporting rod (11) is half of the width of the transverse plate (3).

4. The multimedia lectern of claim 1, wherein: the foundation pit (1) is provided with a clamping groove corresponding to the joint of the telescopic cover plate (6).

5. The multimedia lectern of claim 1, wherein: the two ends of the electric sliding rail (8) are fixedly connected with limiting blocks through welding.

6. The multimedia lectern of claim 1, wherein: the flexible apron (6) passes through joint fixedly connected with sealing strip with foundation ditch (1) junction.