CN216388445U

CN216388445U - Telescopic whiteboard for teaching

Info

Publication number: CN216388445U
Application number: CN202120870791.9U
Authority: CN
Inventors: 王逸凡; 区永龙; 刘锦鑫; 张霄
Original assignee: Shunde Polytechnic
Current assignee: Shunde Polytechnic
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-04-26
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a telescopic whiteboard for teaching, which comprises two groups of sleeves, wherein the bottom ends of the sleeves are fixedly connected with a base, the lower surface wall of the base is provided with a chute, the inner side of the chute is provided with a support leg, the side wall of the support leg is fixedly connected with a pin shaft, the support leg is rotatably connected with the chute through the pin shaft, the inner part of the sleeve is movably connected with an upright post in an upward extending manner, the outer annular surface of the side surface wall of the sleeve, which is close to the upright post, is provided with a butterfly screw, the number of the upright posts is the same as that of the sleeves, and the upper ends of a group of upright posts are fixedly connected with winding posts; this scalable blank is used in teaching is through setting up coiling post, spacing post, pivot, reel, soft blank curtain, wire rope, extension spring, location disc and inserted bar, and usable tensile soft blank curtain between coiling post and spacing post provides the area of writing, can make soft blank curtain possess the light characteristics of writing of matter, and soft blank curtain can possess the effect of withdrawing automatically, and the practicality is higher.

Description

Telescopic whiteboard for teaching

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a telescopic whiteboard for teaching.

Background

The whiteboard is the most practical teaching tool, and the most front lines of teaching and research are actively conducted at every place. The whiteboard is a teaching tool with large volume and heavy weight in the impression of people, and a woman teacher cannot move the whiteboard alone in many times.

The prior art has the following defects or problems:

1. in the teaching whiteboard in the prior art, the weight and the volume of the whiteboard often limit the whiteboard to only play a role in a fixed classroom, so that the heavy whiteboard has potential safety hazards in some occasions with more children, and a woman teacher even cannot move the whiteboard alone in many times;

2. in addition, when the white board in the prior art is installed and supported for use by using the supporting bracket, the structure of the supporting bracket is relatively fixed, so that the white board is often difficult to carry during outdoor activities and in some occasions with portable requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a telescopic whiteboard for teaching aiming at the defects of the prior art, and solves the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a scalable blank is used in teaching, includes the sleeve pipe, sheathed tube quantity is two sets ofly, sheathed tube bottom fixedly connected with base, the chute has been seted up to the lower surface wall of base, the inboard of chute is provided with the landing leg, the lateral wall fixedly connected with round pin axle of landing leg, the landing leg rotates with the chute through the round pin axle to be connected, sheathed tube inside and upwards extend swing joint have the stand, sheathed tube side surface wall is close to the outer anchor ring of stand and is provided with the butterfly screw, the quantity of stand is the same with sheathed tube quantity, and is a set of the upper end fixedly connected with of stand coils the post, another group the upper end fixed mounting of stand has spacing post, is provided with the magnet piece on two sets of sheathed tube lateral walls.

As a preferred technical scheme of the present invention, the inner wall of the limiting column is rotatably connected with a rotating shaft through a bearing, the outer ring surface of the rotating shaft is fixedly connected with a winding drum near the inside of the limiting column, a soft white board curtain is wound on the winding drum, one end of the soft white board curtain is fixedly connected with the outer ring surface of the winding drum, the other end of the soft white board curtain penetrates through the side wall of the winding column and is fixedly provided with a circular clamping column, and the outer side of the circular clamping column near the side wall of the limiting column is movably connected with a clamping groove.

As a preferred technical scheme of the utility model, the two sides of the outer ring surface of the rotating shaft, which are close to the winding drum, are wound with steel wire ropes, one end of each steel wire rope is fixedly connected with the rotating shaft, and the other end of the rotating shaft, which is close to the inner side wall of the sleeve, is fixedly connected with a tension spring.

As a preferred technical scheme of the utility model, one end of the rotating shaft is provided with a positioning disc close to the upper surface wall of the winding column, the surface wall of the positioning disc is longitudinally provided with a positioning hole, the inner side of the positioning hole is inserted with an inserted rod close to the upper surface wall of the sleeve, and the upper surface wall of the sleeve is provided with a slot with the outer diameter similar to that of the bottom end of the inserted rod.

As a preferred technical scheme of the utility model, the number of the bases is two, and the lower end of each base corresponds to three groups of the supporting legs.

As a preferred technical scheme of the utility model, the sleeve, the upright post, the winding post and the limiting post are all made of aluminum alloy materials.

As a preferable technical scheme of the present invention, the number of the magnet blocks is two, the magnet blocks are symmetrically and parallelly distributed on opposite side walls of the sleeve, and the outer diameter of the sleeve is the same as the outer diameter of the winding column and the limiting column.

Compared with the prior art, the utility model provides a telescopic whiteboard for teaching, which has the following beneficial effects:

1. the stretchable whiteboard for teaching is characterized in that a winding column, a limiting column, a rotating shaft, a winding drum, a flexible whiteboard curtain, a steel wire rope, a tension spring, a positioning disc and an insertion rod are arranged, the circular clamping column connected to the flexible whiteboard curtain can draw the flexible whiteboard curtain wound on the winding drum by the circular clamping column, the steel wire rope is wound on the rotating shaft and the tension spring is drawn by the steel wire rope under the axial motion of the rotating shaft, the circular clamping column can be inserted into a clamping groove under the condition that the insertion rod limits the positioning disc, so that the flexible whiteboard curtain stretched between the winding column and the limiting column can provide a writing area, the flexible whiteboard curtain has the characteristics of light weight and convenience in writing, the flexible whiteboard curtain is more practical in teaching use, in addition, the insertion rod is matched with the positioning hole on the positioning disc, the winding drum connected to the rotating shaft can have the locking effect of the flexible whiteboard curtain, thereby providing the effect of automatically rolling the soft white board curtain;

2. this scalable blank is used in teaching, through setting up the sleeve pipe, the chute, the landing leg, the magnet piece, stand and butterfly screw, utilize the sleeve pipe, under stand and the cooperation of butterfly screw three, can provide the vertical position of putting of coiling post and spacing post and heighten spacing and accomodate, then utilize the three-point bearing structure of landing leg to avoid the sleeve pipe to take place the problem of toppling as far as possible, and under the normal running fit of landing leg through round pin axle and chute, the triangular structure of traditional rigid support has been got rid of, so that provide the accomodating of inside shrink, when treating soft whiteboard curtain book on the reel, utilize the magnet piece that two sets of sleeve pipe lateral walls correspond, can let its two sets of sleeve pipes paste each other, so that holistic carrying, it is more convenient and reliable to use.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a side plan view of the bushing of the present invention;

FIG. 3 is an enlarged top view of the base of the present invention;

FIG. 4 is a top view of a knot-limiting post of the present invention;

fig. 5 is a plan sectional view of the winding post of the present invention.

In the figure: 1. a sleeve; 2. a base; 3. a chute; 4. a support leg; 5. a pin shaft; 6. a magnet block; 7. a column; 8. a butterfly screw; 9. winding the column; 10. a limiting column; 11. a rotating shaft; 12. a reel; 13. a soft white board curtain; 14. a circular clamping column; 15. a card slot; 16. a wire rope; 17. a tension spring; 18. positioning the disc; 19. positioning holes; 20. and (4) inserting the rod.

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. 1-5, in this embodiment: the utility model provides a scalable blank is used in teaching, including sleeve pipe 1, sleeve pipe 1's quantity is two sets of, sleeve pipe 1's bottom fixedly connected with base 2, chute 3 has been seted up to base 2's lower diaphram, chute 3's inboard is provided with landing leg 4, landing leg 4's lateral wall fixedly connected with round pin axle 5, landing leg 4 rotates with chute 3 through round pin axle 5 and is connected, sleeve pipe 1's inside and upwards extend swing joint have stand 7, sleeve pipe 1's side diaphram wall is close to the outer anchor ring of stand 7 and is provided with butterfly screw 8, the quantity of stand 7 is the same with sleeve pipe 1's quantity, the upper end fixedly connected with of a set of stand 7 coils post 9, the upper end fixed mounting of another group stand 7 has spacing post 10, be provided with magnet piece (6) on the lateral wall of two sets of sleeve pipe (1).

In this embodiment, the inner wall of the limiting column 10 is rotatably connected with a rotating shaft 11 through a bearing, the outer annular surface of the rotating shaft 11 is fixedly connected with a winding drum 12 near the inside of the limiting column 10, a soft white board curtain 13 is wound on the winding drum 12, one end of the soft white board curtain 13 is fixedly connected with the outer annular surface of the winding drum 12, the other end of the soft white board curtain 13 penetrates through the side wall of the winding column 9 and is fixedly provided with a circular clamping column 14, and the outer side of the circular clamping column 14 near the side wall of the limiting column 10 is movably connected with a clamping groove 15; a steel wire rope 16 is wound on the outer annular surface of the rotating shaft 11 close to two sides of the winding drum 12, one end of the steel wire rope 16 is fixedly connected with the rotating shaft 11, and the other end of the rotating shaft 11 close to the inner side wall of the sleeve 1 is fixedly connected with a tension spring 17; the flexible white screen 13 wound on the winding drum 12 can be drawn by the circular clip column 14, and under the axial movement of the rotating shaft 11, the wire rope 16 is wound on the rotating shaft 11 and the tension spring 17 is drawn by the wire rope 16, and then the circular clip column 14 can be inserted into the clip groove 15, and the elastic reset of the tension spring 17 can provide the subsequent processing of the rotation of the winding drum 12. A positioning disc 18 is arranged at one end of the rotating shaft 11 close to the upper surface wall of the winding column 9, a positioning hole 19 is longitudinally arranged in the surface wall of the positioning disc 18, an inserting rod 20 is inserted into the inner side of the positioning hole 19 close to the upper surface wall of the sleeve 1, and a slot with the outer diameter similar to that of the bottom end of the inserting rod 20 is formed in the upper surface wall of the sleeve 1; the insertion rod 20 is matched with the positioning hole 19 on the positioning disc 18, so that the reel 12 connected to the rotating shaft 11 has the locking effect of the soft whiteboard curtain 13, the soft whiteboard curtain 13 can be automatically rolled back, and the insertion slot can provide an insertion space for the insertion rod 20. The number of the bases 2 is two, and the lower end of each group of bases 2 corresponds to three groups of supporting legs 4; utilize the three point support structure of landing leg 4 to avoid sleeve pipe 1 to take place the problem of toppling as far as possible, and landing leg 4 has broken away from the triangular structure of traditional rigid support through the normal running fit of round pin axle 5 with chute 3 to provide the accomodation of inside shrink. The sleeve 1, the upright post 7, the winding post 9 and the limiting post 10 are all made of aluminum alloy materials; by adopting the light aluminum alloy material, the weight can be effectively reduced. The number of the magnet blocks 6 is two, the magnet blocks 6 are symmetrically and parallelly distributed on the opposite side walls of the sleeve 1, and the outer diameter of the sleeve 1 is the same as the outer diameter of the winding column 9 and the limiting column 10; when the soft white board curtain 13 is rolled back on the winding drum 12, the two sets of sleeves 1 can be attached to each other by the magnets 6 corresponding to the side walls of the two sets of sleeves 1, so that the whole white board curtain can be conveniently carried.

The working principle and the using process of the utility model are as follows: firstly, the circular clip column 14 connected to the soft white board curtain 13 can draw the soft white board curtain 13 wound on the winding drum 12 through the circular clip column 14, under the axial movement of the rotating shaft 11, the wire rope 16 is wound on the rotating shaft 11 and the tension spring 17 is drawn by the wire rope 16, the circular clamping column 14 can be inserted into the clamping groove 15 under the limit of the positioning disc 18 limited by the inserting rod 20, thereby providing a writing area by stretching the soft white screen 13 between the winding posts 9 and the limiting posts 10, the soft white board curtain 13 has the characteristic of light weight and convenient writing, so that the soft white board curtain 13 is more practical for teaching use, and in addition, by utilizing the matching of the inserted rod 20 and the positioning hole 19 on the positioning disc 18, the reel 12 connected to the rotating shaft 11 can have the locking effect of the soft whiteboard curtain 13, so that the soft whiteboard curtain 13 can be automatically rolled back; then utilize sleeve pipe 1, stand 7 and butterfly screw 8 three's cooperation down, can provide the spacing and the accomodating of the vertical position heightening of coiling post 9 and spacing post 10, then utilize the three point support structure of landing leg 4 to avoid sleeve pipe 1 to take place the problem of toppling as far as possible, and landing leg 4 is through the normal running fit of round pin 5 with chute 3 down, the triangular structure of traditional rigid support has been got rid of, so that provide the accomodating of inside shrink, when waiting that soft whiteboard curtain 13 rolls back on reel 12, utilize the magnet piece 6 that two sets of sleeve pipe 1 lateral walls correspond, can let its two sets of sleeve pipes 1 paste each other, so that holistic carrying, it is more convenient and reliable to use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a scalable blank is used in teaching which characterized in that: comprises two groups of sleeves (1), the bottom ends of the sleeves (1) are fixedly connected with a base (2), the lower surface wall of the base (2) is provided with a chute (3), the inner side of the chute (3) is provided with a supporting leg (4), the side walls of the supporting legs (4) are fixedly connected with pin shafts (5), the supporting legs (4) are rotatably connected with the inclined grooves (3) through the pin shafts (5), magnet blocks (6) are arranged on the side walls of the two groups of sleeves (1), the inside of the sleeve (1) extends upwards and is movably connected with a vertical column (7), the outer ring surface of the side surface wall of the sleeve (1) close to the upright post (7) is provided with a butterfly screw (8), the quantity of stand (7) is the same with the quantity of sleeve pipe (1), and is a set of the upper end fixedly connected with of stand (7) winds post (9), another group the upper end fixed mounting of stand (7) has spacing post (10).

2. The retractable whiteboard for teaching as claimed in claim 1, wherein: the inner wall of spacing post (10) rotates through the bearing and is connected with pivot (11), the inside fixedly connected with reel (12) that the outer anchor ring of pivot (11) is close to spacing post (10), it has soft whiteboard curtain (13) to coil on reel (12), the one end and the reel (12) outer anchor ring fixed connection of soft whiteboard curtain (13), the other end of soft whiteboard curtain (13) runs through the lateral wall and the fixed mounting of coiling post (9) have circular calorie of post (14), the lateral wall swing joint that the outside of circular calorie of post (14) is close to spacing post (10) has draw-in groove (15).

3. The retractable whiteboard for teaching as claimed in claim 2, wherein: and steel wire ropes (16) are wound on two sides, close to the winding drum (12), of the outer annular surface of the rotating shaft (11), one end of each steel wire rope (16) is fixedly connected with the rotating shaft (11), and the other end of each rotating shaft (11) is close to the inner side wall of the corresponding sleeve (1) and is fixedly connected with a tension spring (17).

4. The retractable whiteboard for teaching as claimed in claim 2, wherein: one end of the rotating shaft (11) is provided with a positioning disc (18) close to the upper surface wall of the winding column (9), a positioning hole (19) is longitudinally formed in the surface wall of the positioning disc (18), the inner side of the positioning hole (19) is inserted into an insertion rod (20) close to the upper surface wall of the sleeve (1), and the upper surface wall of the sleeve (1) is provided with a slot with the outer diameter similar to that of the bottom end of the insertion rod (20).

5. The retractable whiteboard for teaching as claimed in claim 1, wherein: the quantity of base (2) is two sets of, every group the lower extreme of base (2) corresponds three sets of landing leg (4).

6. The retractable whiteboard for teaching as claimed in claim 1, wherein: the sleeve (1), the upright post (7), the winding post (9) and the limiting post (10) are all made of aluminum alloy materials.

7. The retractable whiteboard for teaching as claimed in claim 1, wherein: the number of the magnet blocks (6) is two, the magnet blocks (6) are symmetrically and parallelly distributed on opposite side walls of the sleeve (1), and the outer diameter of the sleeve (1) is the same as that of the winding column (9) and the limiting column (10).