CN213935304U

CN213935304U - Computer teaching demonstration show board

Info

Publication number: CN213935304U
Application number: CN202120125106.XU
Authority: CN
Inventors: 刘东旭; 王子健
Original assignee: Henan Quality Polytechnic
Current assignee: Henan Quality Polytechnic
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-08-10
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses a computer teaching demonstration show board, including the background board, the lower surface of background board is close to the equal fixedly connected with support column in both ends, the axle sleeve has all been welded at the bottom middle part of support column, and the bottom welding of axle sleeve has first half frustum, open at the top middle part of first half frustum has the arc breach, and rotates in the arc breach and be connected with the fixed axle, first half frustum top tangent plane is opened there is the screw, and the screw is located one side of arc breach, and one side hinged joint that the screw was kept away from to first half frustum top tangent plane has C type snap ring, one side that the pin joint was kept away from to C type snap ring is provided with self-locking bolt, and first half frustum and second half frustum bottom all are equipped with gyro wheel mechanism. The utility model discloses can reduce its base area through rotatory second half frustum when using computer teaching demonstration show board, the gyro wheel mechanism that the cooperation base set up removes and the show board that stews.

Description

Computer teaching demonstration show board

Technical Field

The utility model relates to a teaching aid technical field especially relates to a computer teaching demonstration show board.

Background

Along with the continuous innovation of education mode, the teaching tool is also the kind more and more, education teaching is with show board just one of them, education teaching show board kind on the market is very many at present, has satisfied teaching education's needs basically, along with the high-speed development of computer technology, the information security problem is more and more also more and more receives people's attention, simultaneously, also more and more to the demand of information security professional talent, the information security subject is a discipline of practicality and theoretical.

Through the retrieval, chinese patent application number is CN 201820336442.7's patent, disclose an information security teaching is with show board, teaching is with show board main part including information security, teaching is with show board shell, the show district, the riser, a pedestal, pulley and dash board, teaching is with the middle part of show board main part is provided with teaching of information security and is with show board shell, teaching of information security is with show board shell and teaching of information security and is with show board main part fixed connection, the bottom in show district is provided with the riser, riser and show district fixed connection. But the device is at the show in-process, for reaching the more stable purpose of messenger's show board, the base area of show board usually sets up great, has sharp-pointed corner, knocks over the foot or stumbles easily when dragging the show board and using.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a computer teaching demonstration display board.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a computer teaching demonstration display board comprises a background board, wherein support columns are fixedly connected to the lower surface of the background board close to two ends of the lower surface of the background board through bolts, shaft sleeves are welded to the middle portions of the bottoms of the support columns, first half-cones are welded to the bottoms of the shaft sleeves, arc-shaped notches are formed in the middle portions of the tops of the first half-cones and are rotatably connected with fixed shafts, bearings are sleeved on the outer walls of the circumferences of the fixed shafts, bearing mounting holes are formed in the bottoms of the support columns, outer rings of the bearings are clamped in the bearing mounting holes, screw holes are formed in the top tangent planes of the first half-cones and are located on one sides of the arc-shaped notches, C-shaped clamp rings are hinged to one sides, away from the hinged joints, of the C-shaped clamp rings are provided with self-locking bolts, two outer roller mechanisms are fixed to the outer edges of the bottoms of the first half-cones, and two inner roller mechanisms are fixed to the inner edges of the bottoms of the second half-cones, the outer roller mechanism and the inner roller mechanism are identical in structure, and the first half frustum, the second half frustum, the outer roller mechanism and the inner roller mechanism form a base.

Furthermore, a plurality of anti-slip strips are fixed on the inner surface of the C-shaped clamping ring, and the anti-slip strips are made of rubber materials with rectangular cross sections.

Further, the second half frustum circumference inner wall is close to the bottom and welds the horizontally backup pad, and fixed surface has the balancing weight in the backup pad, and backup pad and balancing weight are installed in the lower position of base, and the balancing weight has reduced the holistic focus of show board, is difficult to empty when the main part that the focus is low is placed to in the use, the show board is vertical to be placed more stably.

Further, outer roller mechanism includes a roller section of thick bamboo, compression spring, universal wheel, and compression spring's upper and lower both ends are fixed respectively on the top of a roller section of thick bamboo and the top of universal wheel, and cloth is equallyd divide to first half frustum surface and second half frustum internal surface has the mounting groove, the size of mounting groove and the external diameter looks adaptation of a roller section of thick bamboo, the lower surface parallel and level of four roller sections, and the degree of depth of a roller section of thick bamboo is greater than the height of universal wheel.

Further, the background board all is provided with the frame all around, and the front of background board is located the upper surface sliding connection of the frame of bottom has electronic display board, and frame top installation LED lamp, frame bottom are equipped with and supply the gliding guide rail of electronic display board, and in the use, electronic display board passes through the guide rail and removes, and is more nimble, and mobilizable electronic display board avoids the background board to exist by the region of absolute coverage, improves the area that the background board can supply to write.

Furthermore, one side of the frame, which is far away from the background plate, is covered with an iron sheet, a chalk box is adsorbed on the iron sheet, one side of the chalk box, which is close to the frame, is provided with a magnet, and the magnet and the iron sheet are attracted with each other, so that the chalk box is adsorbed on the iron sheet.

Furthermore, a magnet groove is formed in one side, close to the frame, of the chalk box, and a convex shape matched with the magnet groove is formed in one side, close to the magnet groove, of the magnet, so that the magnet is embedded in the magnet groove.

The utility model has the advantages that:

1. the two overlapped semi-frustum-shaped base bodies are matched with the fixed shaft and the C-shaped clamping ring which can rotate and clamp, so that the base can rotate to be in a semi-conical shape in the use process, the occupied area is reduced, and the condition that people trip over the display board in the use process is ensured; when the display board is stored, the display board can be rotated to be conical, and the placement is more stable.

2. Through the continuous device of compression spring and universal wheel that sets up, in the use, when compression spring is not compressed, the relative gyro wheel bobbin base of universal wheel is in the state of stretching out, and the show board passes through the universal wheel and freely removes, when compression spring is compressed, drives the universal wheel and hides into in the gyro wheel section of thick bamboo, and gyro wheel bobbin base contact ground makes the show board place in original place steadily, and has reduced the distance on base lower limb and ground, prevents that the people from colliding with the corner when walking about.

3. Through the device of the C type snap ring of the interior fixed antislip strip that sets up, in the use, when the auto-lock bolt is slowly locking, can drive the antislip strip at C type snap ring middle part and constantly compress tightly the surface of fixed axle, increased the static frictional force between antislip strip and the fixed axle, and then let C type snap ring can be with the fixed axle chucking, let the relative position of half first frustum and the half frustum of second fixed to it is more stable to make the show board place.

Drawings

Fig. 1 is a schematic view of an overall structure of a computer teaching demonstration display board provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of an assembly structure of a base of a computer teaching demonstration display board provided in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a computer teaching demonstration display board provided in embodiment 1 of the present invention when a base is unfolded;

fig. 4 is a cross-sectional view of a chalk box of a computer teaching demonstration display board provided in embodiment 2 of the present invention.

In the figure: the automatic pencil sharpener comprises an electronic display board 1, a frame 2, a support column 3, a first half frustum 4, an outer roller mechanism 5, a second half frustum 6, an inner roller mechanism 7, a balancing weight 8, a background plate 9, a fixing shaft 10, a shaft sleeve 11, a 12C-shaped clamping ring, a self-locking bolt 13, a screw hole 14, a mounting groove 15, a roller barrel 16, a compression spring 17, a universal wheel 18, a support plate 19, an LED lamp 20, an iron sheet 21, a chalk box 22, a magnet groove 23 and a magnet 24.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

Example 1

Referring to fig. 1-3, a computer teaching demonstration display board comprises a background board 9, wherein support columns 3 are fixedly connected to the lower surface of the background board 9 close to the two ends of the lower surface of the background board 9 through bolts, shaft sleeves 11 are welded to the middle portions of the bottoms of the support columns 3, first half cones 4 are welded to the bottoms of the shaft sleeves 11, arc-shaped notches are formed in the middle portions of the tops of the first half cones 4, fixed shafts 10 are rotatably connected in the arc-shaped notches, bearings are sleeved on the outer circumferential walls of the fixed shafts 10, bearing mounting holes are formed in the bottoms of the support columns 3, outer rings of the bearings are clamped in the bearing mounting holes, screw holes 14 are formed in the top tangent planes of the first half cones 4, the screw holes 14 are located on one sides of the arc-shaped notches, a C-shaped clamp ring 12 is hinged to one side, away from a hinge joint, of the C-shaped clamp ring 12 is provided with self-locking bolts 13, two outer roller mechanisms 5 are fixed to the outer edges of the bottoms of the first half cones 4, two inner roller mechanisms 7 are fixed at the inner edge of the bottom of the second half frustum 6, the outer roller mechanisms 5 and the inner roller mechanisms 7 have the same structure, the first half frustum 4, the second half frustum 6, the outer roller mechanisms 5 and the inner roller mechanisms 7 form a base, and the base is provided with two overlapped half frustum type bases and matched with a fixing shaft 10 and a C-shaped snap ring 12 which can rotate and be clamped, so that the base can rotate into two half cones which are sleeved together in the use process, the fact that no obstacle exists in front of the ground where the board surface is located in the use process is ensured, and the situation that people are stumbled when walking in front of the display board can be avoided; and the base can rotate to the conical shape when the show board is idle, and the placement is more stable.

The internal surface fixation of C type snap ring 12 has a plurality of antislip strip, and the antislip strip is rectangular rubber material for the cross-section, thereby in the use, when self-locking bolt 13 when slowly locking, can drive the antislip strip at C type snap ring 12 middle part constantly compress tightly the surface of fixed axle 11, the static friction power between antislip strip and the fixed axle 11 has been increased, and then let C type snap ring 12 can be with fixed axle 11 chucking, let the relative position of first half frustum 4 and the half frustum 6 of second fixed.

The utility model discloses in, 6 circumference inner walls of half frustum of second are close to the bottom and weld horizontally

backup pad

19, and 19 upper surface of backup pad have a balancing weight 8, and backup pad 19 and balancing weight 8 are installed in the lower position of base, and balancing weight 8 has reduced the holistic focus of show board, is difficult to empty when the main part that the focus is low is placed to in the use, the show board is vertical to be placed more stably.

In the utility model, the outer roller mechanism comprises a roller tube 16, a compression spring 17 and a universal wheel 18, the upper end and the lower end of the compression spring 17 are respectively fixed on the top end of the roller tube 16 and the top end of the universal wheel 18, the outer surface of the first half frustum 4 and the inner surface of the second half frustum 6 are equally distributed with mounting grooves 15, the size of the mounting grooves 15 is matched with the outer diameter of the roller tube 16, the lower surfaces of the four roller tubes 16 are flush, the depth of the roller tube 16 is greater than the height of the universal wheel 18, through the device for connecting the compression spring 17 and the universal wheel 18, in the using process, when the compression spring 17 is not compressed, the universal wheel 18 is in an extending state relative to the bottom of the roller tube 16, the display board freely moves through the universal wheel 18, when the compression spring 17 is compressed, the universal wheel 18 is driven to be hidden into the roller tube 16, the bottom of the roller tube 16 is contacted with the ground, so that the display board is stably placed in place, and the distance between the lower edge of the base and the ground is reduced, so that the person is prevented from knocking to corners when walking.

The utility model discloses in, all be provided with frame 2 around background board 9, and the front of background board 9 is located the frame 2's of bottom last sliding surface connection has electronic display panel 1, 2 top installation LED lamps 20 of frame, 2 bottoms of frame are equipped with the gliding guide rail of electronic display panel 1, in the use, electronic display panel 1 removes about through the guide rail, and is more nimble, and mobilizable electronic display panel 1 avoids background board 9 to have the region by absolute coverage, improves the area that the background board can supply to write.

The working principle of the embodiment is as follows: when the self-locking device is used, the self-locking bolt 13 is unscrewed, the second half frustum 6 rotates around the fixed shaft 10, the base rotates to be a half cone shape that the first half frustum 4 and the second half frustum 6 are sleeved together, the self-locking bolt 13 is screwed, the anti-slip strip in the middle of the C-shaped clamp ring 12 is pressed on the surface of the fixed shaft 11, the static friction force between the anti-slip strip and the fixed shaft 11 is increased, the C-shaped clamp ring 12 can tightly clamp the fixed shaft 11, and the relative positions of the first half frustum 4 and the second half frustum 6 are fixed; when the self-locking bolt 13 is not used, the self-locking bolt 13 is unscrewed, and the second half frustum 6 is rotated, so that the first half frustum 4 and the second half frustum 6 form a cone frustum; when the display board is moved, the display board can be moved by slightly lifting the display board, the universal wheel 18 in the roller tube 16 is partially ejected by the compression spring 17; when the display board is in a static state, the compression spring 17 is in a compression state due to the self weight of the display board, the universal wheel 18 is hidden in the roller tube 16, the bottom of the roller tube 16 is in contact with the ground, and the display board is stably placed in place.

Example 2

Referring to fig. 3 and 4, a computer teaching demonstration display board, this embodiment is different from embodiment 1 in that a side of the frame 2 away from the background board 9 is covered with an iron sheet 21, a chalk box 22 is attached to the iron sheet 21, a magnet 24 is installed on a side of the chalk box 22 close to the frame 2, the magnet 24 is attracted to the iron sheet 21, so that the chalk box 22 is attached to the iron sheet 21, and the chalk box 22 can be moved freely on the iron sheet 21 during use, which is more flexible and convenient.

The utility model discloses in, one side that chalk box 22 is close to frame 2 is opened there is magnet recess 23, and magnet 24 is close to one side of magnet recess 23 and sets to the convex with magnet recess 23 looks adaptation, inlays in magnet recess 23 for making magnet 24.

The working principle of the embodiment is as follows: the magnet 24 is embedded on one side of the chalk box 22 close to the frame 2, and the position where the chalk box 22 is placed can be freely moved on the iron sheet on the side surface of the frame 2 according to the attraction between the magnet 24 and the iron sheet 21.

In the description of this patent, it is to be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In this patent, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, or they may be connected internally or in an interactive relationship with each other, and unless otherwise specifically limited, the specific meaning of the above terms in this patent will be understood by those skilled in the art according to the specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The computer teaching demonstration display board comprises a background board (9), wherein the lower surface of the background board (9) is close to two ends and is fixedly connected with supporting columns (3), and is characterized in that shaft sleeves (11) are welded at the middle parts of the bottoms of the supporting columns (3), a first half frustum (4) is welded at the bottom end of each shaft sleeve (11), an arc-shaped notch is formed in the middle part of the top end of each first half frustum (4), a fixing shaft (10) is rotatably connected in the arc-shaped notch, a bearing is sleeved on the outer wall of the circumference of the fixing shaft (10), a bearing mounting hole is formed in the bottom end of each supporting column (3), an outer ring of the bearing is clamped in the bearing mounting hole, a screw hole (14) is formed in the top tangent plane of each first half frustum (4), the screw hole (14) is located on one side of the arc-shaped notch, a C-shaped clamping ring (12) is hinged to one side, far away from the screw hole (14), of the top tangent plane of each first half frustum (4), one side that C type snap ring (12) kept away from the pin joint is provided with self-locking bolt (13), and the outer edge in bottom of first half frustum (4) is fixed with two outer roller mechanism (5), and the inner edge in bottom of second half frustum (6) is fixed with two interior roller mechanism (7), and outer roller mechanism (5) and interior roller mechanism (7) structure are the same, first half frustum (4), second half frustum (6), outer roller mechanism (5) and interior roller mechanism (7) constitute the base.

2. The computer teaching demonstration display board according to claim 1, wherein a plurality of anti-slip strips are fixed on the inner surface of the C-shaped snap ring (12), and the anti-slip strips are made of rubber materials with rectangular cross sections.

3. The computer teaching demonstration display board according to claim 1, wherein a horizontal support plate (19) is welded to the inner circumferential wall of the second half frustum (6) near the bottom end, and a balancing weight (8) is fixed to the upper surface of the support plate (19).

4. The computer teaching demonstration display board according to claim 1, wherein the outer roller mechanism comprises roller cylinders (16), compression springs (17) and universal wheels (18), the upper ends and the lower ends of the compression springs (17) are respectively fixed to the top ends of the roller cylinders (16) and the top ends of the universal wheels (18), mounting grooves (15) are evenly distributed on the outer surface of the first half frustum (4) and the inner surface of the second half frustum (6), the mounting grooves (15) are matched with the outer diameters of the roller cylinders (16), the lower surfaces of the four roller cylinders (16) are flush, and the depth of the roller cylinders (16) is greater than the height of the universal wheels (18).

5. The computer teaching demonstration display board according to claim 1, wherein a frame (2) is arranged around the background board (9), an electronic display board (1) is connected to the upper surface of the frame (2) at the bottom of the front surface of the background board (9) in a sliding manner, an LED lamp (20) is mounted at the top of the frame (2), and a guide rail for the electronic display board (1) to slide is arranged at the bottom of the frame (2).

6. A computer teaching demonstration and display board according to claim 5, characterized in that the side of the frame (2) far away from the background board (9) is covered with an iron sheet (21), the iron sheet (21) is adsorbed with a chalk box (22), a magnet (24) is arranged on the side of the chalk box (22) near the frame (2), and the magnet (24) is attracted with the iron sheet (21).

7. The computer teaching demonstration display board according to claim 6, wherein a magnet groove (23) is formed in one side of the chalk box (22) close to the frame (2), and a convex shape matched with the magnet groove (23) is formed in one side of the magnet (24) close to the magnet groove (23).