CN209995616U

CN209995616U - A copy table for fine arts teaching

Info

Publication number: CN209995616U
Application number: CN201920575336.9U
Authority: CN
Inventors: 许涛
Original assignee: Chengdu Normal University
Current assignee: Chengdu Normal University
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-31
Anticipated expiration: 2029-04-24

Abstract

The utility model relates to a copy table for fine arts teaching, including the table of by three at least table leg supporting, the four corners of rectangle opening lower extreme sets up the vertical spacing post that extends down, the V type groove that sets up on the rectangle open-ended four corners encloses into can hold the cuboid space of copy board, rectangle opening fit-in can gliding floating plate from top to bottom, the symmetry sets up contra-rotation drive screw section on the drive screw, every section drive screw section and drive swivel nut screw-thread fit, the drive swivel nut is connected fixedly with drive slider respectively, the floating plate bottom sets up two wedges, set up the atress inclined plane on the wedge, the angular bisector of the atress inclined plane's contained angle on two wedges is located vertical direction upwards, atress inclined plane on the wedge and the drive inclined plane sliding fit on the drive slider, drive screw's middle section empty cover , fixed cover that sets up tensioning spring is sheathe in to the fixed cover, tensioning spring's free end and floating plate bottom are connected.

Description

A copy table for fine arts teaching

Technical Field

The utility model relates to an kind of teaching aids, concretely relates to kind copy tables that are used for fine arts teaching.

Background

In art teaching, copy and drawing teaching work can be carried out frequently, a copy board is a professional tool for carrying out copy and animation drawing, a conventional LED copy board is flat and is formed by covering a light boxes with acrylic boards, when the teaching desk is used, a plurality of paintings are overlapped on , paper is directly covered on a display screen of the copying desk for copying, the operation is simple and convenient, the pictures on the bottom paintings can be clearly seen, copying is carried out on th piece of paper, when the conventional LED copy board is used at present, the copy board is placed on a conventional teaching desktop, then copying paper is placed on the copying board, and when the copying board is used, the copying paper is not fixed with the desktop, the copying board is easy to shift or even slip in the copying process, paper dislocation and serious influence are caused, in the copying mode, height difference exists between the copying board and the desktop, the copying paper is placed in a high-low area, the copying paper is easy to be damaged by pressing in the copying process, the conventional teaching desk is difficult to copy, and the teaching desk is used in a plurality of teaching desk special copy modes, and the teaching desk is difficult to carry out the teaching rhythm of copy operation in the teaching.

Disclosure of Invention

The utility model aims at prior art's not enough, provide copy tables for fine arts teaching, it can solve traditional copy mode in the table can't carry on spacingly to the copy board, the copy board appears shifting easily or even slippage to and there is the difference in height between copy board and the desktop, the copy paper is the phenomenon of being cut the destruction easily.

copy tables for fine arts teaching, include by the table of three at least table leg supports, set up a plurality of vertical rectangle openings up on the table, the four corners of rectangle opening lower extreme sets up the vertical spacing post that extends down, set up vertical downwardly extending's V type groove on the spacing post, V type groove and rectangle open-ended interior angle smooth transition, the V type groove that sets up on the rectangle open-ended four corners encloses into and can hold the cuboid space of copy board, rectangle open-ended fit can gliding floating plate from top to bottom, the floating plate can slide from top to bottom in the cuboid space, but table bottom support free rotation's drive screw, the symmetry sets up to the opposite drive screw section of direction on the drive screw, every section drive screw section and drive swivel screw spiral fit, the drive swivel is connected fixedly with drive slider respectively, the floating plate bottom sets up two wedges, set up the inclined plane of atress on the wedge, the angle of the atress wedge on the two wedges is located the fixed square angle, the drive screw is connected fixedly with the fixed spring flat set up on the inclined plane of the perpendicular wedge, the drive spring flat set up the free spring and is connected with the fixed set up the middle section and is connected with the fixed spring on the inclined plane, the fixed spring section, the fixed spring is connected with the fixed set up on the middle section.

installation beams are arranged between the lower ends of two limiting columns in the length direction of each rectangular opening, two installation beams are correspondingly arranged below each rectangular opening, the end face and the side face of each installation beam are respectively contacted and fixed with the bottom faces of two grooves of a V-shaped groove of each limiting column, and the two ends of each driving screw are respectively supported in bearing holes in the installation beams.

And a sliding rod parallel to the driving screw rod is arranged between two corresponding mounting cross beams below each rectangular opening, two ends of the sliding rod are respectively connected and fixed with the mounting cross beams, the sliding rod penetrates through via holes in the two sliding blocks, and the via holes are in sliding fit with the sliding rod.

And the stressed inclined plane on the inclined wedge is in sliding fit with the driving inclined plane on the driving sliding block through a sliding rail.

The angular bisector of the included angle of the stressed inclined planes of the two inclined wedges arranged at the bottom of the floating plate is vertically upward, and the two inclined wedges are positioned between the two driving sliding blocks.

The outer circumference of the driving threaded sleeve is sequentially provided with a spline section, a polished rod section and a limiting shaft shoulder section, the driving sliding block is provided with a spline connecting hole which is in spline fit with the spline section, the polished rod section is sleeved with a buffer rubber pad, and the limiting shaft shoulder of the limiting shaft shoulder section axially presses the buffer rubber pad to enable the other end of the rubber buffer pad to be tightly pressed on the side wall of the sliding block.

The bottom of the floating plate is respectively and symmetrically provided with L-shaped supporting columns, the lower ends of the supporting columns transversely extend outwards to form a downward projection area of the floating plate, and the extending ends are arranged and are in sliding fit with sliding upright columns vertically arranged downwards on the table plate through sliding rails.

The angle of the V-shaped groove is 90 degrees.

The end of the drive screw is provided with a rotating handle.

When the floating board is in a floating state, the floating board is capable of sliding up and down, the floating board is capable of being in a floating state, the board is capable of being in a floating state, the board is capable of being in the board, the board is capable of being in the board, the.

A sliding rod parallel to the driving screw rod is arranged between two mounting cross beams correspondingly arranged below each rectangular opening, two ends of the sliding rod are fixedly connected with the mounting cross beams respectively, the sliding rod penetrates through via holes in the two sliding blocks, the via holes are in sliding fit with the sliding rod, the sliding rod is arranged to support the driving sliding block, and the sliding rod can advance to limit the tendency that the driving sliding block rotates around the axial lead of the driving threaded sleeve.

The force-bearing inclined plane on the inclined wedge is in sliding fit with the driving inclined plane on the driving sliding block through the sliding rail, the sliding rail is adopted, the movement resistance is small, the abrasion is small, and the movement smoothness and the stability are guaranteed.

The angular bisector of the included angle of the stressed inclined planes of the two inclined wedges arranged at the bottom of the floating plate is vertically upward, the two inclined wedges are positioned between the two driving sliding blocks, when the driving sliding blocks move in opposite directions, the two inclined wedges move upwards, and when the driving sliding blocks move in the opposite directions, the inclined wedges move downwards.

Set gradually spline section, polished rod section, spacing shoulder section on the outer circumference of drive swivel nut, set up spline connection hole and spline section spline fit on the drive slider, rubber cushion pad is put to the cover on the polished rod section, the spacing shoulder of spacing shoulder section is exerted pressure to rubber cushion pad axial and is made rubber cushion's ends in addition compress tightly at the slider lateral wall, adopts this kind of structure, and spline fit can play the effect of splining, and rubber cushion pad can carry out axial compression and realize pretightening to the drive slider to the realization is carried out the pretension to helical gearing structure, prevents spacious moving.

The bottom of floating plate symmetry respectively sets up the support post that is L shape, the lower extreme of support post transversely outwards stretches out the decurrent projection area of floating plate, should stretch out the end establish and pass through slide rail sliding fit with the slip stand that erects the setting downwards on the table, adopts this kind of structure, can lead the cooperation to the floating plate, prevents the wearing and tearing that the floating plate will be between the spacing post, adopts the slide rail cooperation, and the motion resistance is little, and wearing and tearing are little, have guaranteed to move smoothly and stability.

The end of drive screw sets up twist grip, sets up twist grip and can be convenient for the student and rotate, applys torque to drive screw.

By adopting the utility model, the problem that the copying plate can not be limited by the table plate in the traditional copying mode and is easy to shift or even slip can be avoided; and the phenomenon that the copy paper is easily cut and damaged because of the height difference between the copy plate and the table top.

The present invention will be described with reference to the accompanying drawings and specific embodiments at .

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic bottom structure of the present invention;

fig. 3 is a schematic structural diagram of the driving slider and the wedge.

In the drawing, 10 is a table, 12 is a limit column, 14 is a floating plate, 15 is a driving screw, 16 is a driving screw sleeve, 17 is a driving slide block, 18 is a wedge, 22 is a fixed sleeve, 23 is a tension spring, 24 is an installation cross beam, 26 is a sliding rod, 33 is a support column, 34 is a sliding upright column, 35 is a rotating handle, 101 is a rectangular opening, 121 is a V-shaped groove, 151 is a driving thread section, 171 is a driving inclined plane, and 181 is a stress inclined plane.

Detailed Description

Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, embodiments of a copy table for art teaching include a table 10 supported by at least three table legs , in this embodiment, four table legs are disposed at the lower end of the table, a plurality of vertical upward rectangular openings 101 are disposed on the table 10, a vertically downward extending limiting column 12 is disposed at four corners of the lower end of the rectangular opening 101, a vertically downward extending V-shaped groove 121 is disposed on the limiting column 12, the angle of the V-shaped groove 121 may be greater than or equal to 90 °, in this embodiment, the angle of the V-shaped groove 121 is 90 °, the V-shaped groove 121 and an inner angle of the rectangular opening are in smooth transition, a V-shaped groove 121 disposed at four corners of the rectangular opening 101 encloses a rectangular space 8655 which can accommodate a copy plate, the rectangular space is enclosed by a V-shaped groove 121, a floating plate 14 which can slide up and down is disposed in the rectangular opening 101, the floating plate 14 can slide up and down in the rectangular space, the floating plate 14 can slide up and down in the floating plate 14 can slide up and down in the rectangular space, the floating plate 14 can slide up and down in the floating plate 14, the driving plate 14 can slide up and down in the rectangular space, the driving plate 14, the driving screw rod 15, the driving the sliding plate is disposed on the sliding plate, the sliding plate 17, the sliding plate is capable of rotating, the sliding of the sliding belt 17, the sliding belt 17, the sliding belt is disposed on the sliding belt 17, the sliding belt is disposed on the sliding belt, the sliding belt 17, the sliding belt 17, the sliding belt is disposed on the sliding belt, the sliding belt 17, the sliding belt 17, the sliding belt.

Preferably, a sliding rod 26 parallel to the driving screw 15 is arranged between two corresponding mounting cross beams 24 below each rectangular opening 101, two ends of the sliding rod 26 are respectively connected and fixed with the mounting cross beams 24, the sliding rod 26 passes through via holes on the two sliders, the via holes are in sliding fit with the sliding rod 26, the sliding rod 26 is arranged to support the driving slider 17, and the sliding rod 26 can move to limit the tendency of the driving slider 17 to rotate around the axis of the driving screw sleeve 16.

Preferably, the bottom of the floating plate 14 is symmetrically provided with L-shaped supporting columns 33, the lower ends of the supporting columns 33 transversely extend out of the downward projection area of the floating plate 14, the extending ends are provided with sliding columns 34 vertically arranged on the table plate 10 downwards and slidably matched with the sliding columns through sliding rails, by adopting the structure, the floating plate 14 can be guided and matched, the floating plate 14 is prevented from being worn between the limiting columns 12, and by adopting the sliding rail matching, the motion resistance is small, the wear is small, and the smooth motion and the stability are ensured.

When the scheme is adopted for copy teaching, when the rotating handle is rotated, the driving screw rod 15 rotates, the driving screw thread sections 151 with opposite rotation directions symmetrically arranged on the driving screw rod 15 rotate and then drive the screw sleeves 16 to move in the axial direction through screw matching, because the rotation directions are opposite, the two driving screw sleeves 16 move in opposite directions or move in the back direction and then respectively drive the two driving slide blocks 17 to move in opposite directions or in the back direction, the stress inclined plane 181 on the inclined wedge 18 is in sliding fit with the driving inclined plane 171 on the driving slide block 17, the horizontal movement of the driving slide block 17 can push the inclined wedge 18 to move up and down, when the sinking depth of the floating plate 14 is equal to the thickness of the LED copy plate, the LED copy plate is embedded, the copy plate is fully limited, the phenomenon that the copy plate slides randomly when copying and learning on a traditional desktop is avoided, and simultaneously, the upper end surface of the copy plate is flush with the surface of the desk plate 10, when copying learning is carried out, the area of the copying paper on the copying board is flush with the area on the desktop, so that the copying paper is convenient to tile and bear force, and the shearing action of the edge of the copying board on the copying paper can be eliminated; floating plate 14 seals rectangle opening 101 when rising to the face with table 10 at the same time, and this kind of state can provide the desktop of flat plate shape, makes things convenient for mr, student to carry out the teaching of traditional teaching and place books or learning aid, adopts under this kind of state the utility model discloses can replace traditional desk, satisfy traditional teaching demand. By adopting the utility model, the transmission structure at the bottom of the desk plate is compact, the ground clearance at the bottom of the desk plate is large, the applicability is strong, various teaching requirements can be effectively met, the teaching rhythm and the teaching effect can be ensured, the situation that the position of the copy plate can not be limited by the desk plate in the traditional copy mode and the copy plate is easy to shift or even slip can be avoided; and the phenomenon that the copy paper is easily cut and damaged because of the height difference between the copy plate and the table top.

Claims

The copying table for art teaching comprises a table plate (10) supported by at least three table legs and is characterized in that a plurality of vertical upward rectangular openings (101) are formed in the table plate (10), limiting columns (12) extending vertically downwards are arranged at four corners of the lower ends of the rectangular openings (101), vertical downward extending V-shaped grooves (121) are formed in the limiting columns (12), inner angles of the V-shaped grooves (121) and the rectangular openings are in smooth transition, rectangular spaces capable of accommodating copying plates are defined by the V-shaped grooves (121) arranged at the four corners of the rectangular openings (101) in a surrounding mode that can be used for accommodating the copying plates, floating plates (14) capable of sliding up and down are matched with rectangular openings (101), the floating plates (14) can slide up and down in the rectangular spaces, driving screws (15) capable of freely rotating are supported at the bottoms of the table plate (10) and , driving screw threads (151) opposite to each other are symmetrically arranged on the driving screw threads (151), each driving screw thread segment is spirally matched with a driving screw sleeve (16), the driving screw sleeve (16) is connected with a driving screw (18) on a vertical line (18), and two inclined driving screw sleeves (181) which are connected with inclined driving wedges (18), and two inclined driving wedges (18) arranged on a vertical inclined plane (18), and two inclined driving wedge (181), and a driving wedge (18) which is connected with a fixed driving wedge (18), and a vertical inclined plane (18) which is connected with a vertical inclined plane (18), and a vertical inclined plane (17), and a vertical inclined plane (18) which is connected with a vertical inclined plane (18) which is arranged on a vertical inclined plane (181), and a driving spring (18), and a vertical inclined plane (18).
2. The copy table for art teaching as claimed in claim 1, wherein installation beams (24) are arranged between the lower ends of the two limiting columns (12) in the length direction of each rectangular opening (101), two installation beams (24) are correspondingly arranged below each rectangular opening (101), the end surfaces and the side surfaces of the installation beams (24) are respectively contacted and fixed with the two groove bottom surfaces of the V-shaped grooves (121) of the limiting columns (12), and the two ends of the driving screw (15) are respectively supported in bearing holes in the installation beams (24).
3. The copying table for art teaching as claimed in claim 2, wherein a sliding rod (26) parallel to the driving screw (15) is arranged between two corresponding mounting beams (24) below each rectangular opening (101), two ends of the sliding rod (26) are respectively connected and fixed with the mounting beams (24), the sliding rod (26) passes through via holes on the two sliding blocks, and the via holes are in sliding fit with the sliding rod (26).
4. The copy table for art teaching of claim 1 wherein: the stressed inclined plane (181) on the inclined wedge (18) is in sliding fit with the driving inclined plane (171) on the driving sliding block (17) through a sliding rail.
5. The copy table for art teaching of claim 1 wherein: the angle bisector of the included angle of the stress inclined planes (181) of the two inclined wedges (18) arranged at the bottom of the floating plate (14) is vertically upward, and the two inclined wedges (18) are positioned between the two driving sliding blocks (17).
6. The copying table for art teaching of claim 1, wherein the driving screw sleeve (16) is sequentially provided with a spline section, a polished rod section and a limiting shaft shoulder section on the outer circumference, the driving slide block (17) is provided with a spline connecting hole in spline fit with the spline section, the polished rod section is sleeved with a cushion rubber pad, and the limiting shaft shoulder of the limiting shaft shoulder section axially presses the cushion rubber pad to enable the other end of the rubber cushion pad to be tightly pressed on the side wall of the slide block.
7. The copy table for art teaching of claim 1 wherein: the bottom of the floating plate (14) is respectively and symmetrically provided with L-shaped supporting columns (33), the lower ends of the supporting columns (33) transversely extend outwards to form a downward projection area of the floating plate (14), and the extending ends are arranged and are in sliding fit with sliding upright columns (34) which are vertically arranged downwards on the table plate (10) through sliding rails.
8. The copy table for art teaching of claim 1 wherein: the angle of the V-shaped groove (121) is 90 degrees.
9. The copy table for art teaching as claimed in claim 1, wherein a rotational handle (35) is provided at the end of the driving screw (15).