阅读说明：本技术 无尘延伸滚轴短期记忆黑板 (Dustless extension roller short-term memory blackboard ) 是由 王宗超 于 2020-07-01 设计创作，主要内容包括：本发明属于教学用具技术领域,尤其为无尘延伸滚轴短期记忆黑板,包括顶盒,顶盒的下端面固定连接有安装盒,安装盒的下端面的后侧固定连接有底盒,顶盒的内壁从前至后安装有小转轴和第一大转轴,第一大转轴的外侧绕接有传送带和薄膜,薄膜的另一端与小转轴绕接,传送带的另一端贯穿顶盒并延伸至安装盒的前方,传送带的另一端绕接有第二大转轴,第二大转轴位于底盒的内部；教师在黑板贴纸上书写后,启动三个电机,第一大转轴和第二大转轴均顺时针转动,进而将传送带卷绕在第一大转轴的外侧,同时小转轴旋转薄膜绕出并覆盖在黑板贴纸上,薄膜可减少转轴对板书字迹的磨损,进而可将书写的字迹保存下来,以便于学生在自习上查看。(The invention belongs to the technical field of teaching aids, in particular to a dust-free extension roller short-term memory blackboard which comprises a top box, wherein the lower end surface of the top box is fixedly connected with a mounting box, the rear side of the lower end surface of the mounting box is fixedly connected with a bottom box, the inner wall of the top box is provided with a small rotating shaft and a first large rotating shaft from front to back, the outer side of the first large rotating shaft is wound with a conveyor belt and a thin film, the other end of the thin film is wound with the small rotating shaft, the other end of the conveyor belt penetrates through the top box and extends to the front of the mounting box, the other end of the conveyor belt is wound with a second large rotating shaft, and the second large rotating shaft is positioned in the bottom box; the teacher writes the back on the blackboard sticker, starts three motor, and the equal clockwise rotation of the big pivot of first big pivot and second, and then convolutes the conveyer belt in the outside of first big pivot, and the rotatory film of little pivot is simultaneously wound out and is covered on the blackboard sticker, and the wearing and tearing of the reducible pivot of film to writing, and then can save the writing of writing down to be convenient for the student looks over in the study.)

1. Dustless extension roller short-term memory blackboard, including top box (1), its characterized in that: the lower end face of the top box (1) is fixedly connected with a mounting box (2), the rear side of the lower end face of the mounting box (2) is fixedly connected with a bottom box (3), a small rotating shaft (102) and a first large rotating shaft (101) are mounted on the inner wall of the top box (1) from front to back, a conveying belt (1011) and a thin film (1021) are wound on the outer side of the first large rotating shaft (101), the other end of the thin film (1021) is wound and connected with the small rotating shaft (102), the other end of the conveying belt (1011) penetrates through the top box (1) and extends to the front of the mounting box (2), a second large rotating shaft (301) is wound and connected on the other end of the conveying belt (1011), the second large rotating shaft (301) is located inside the bottom box (3), the left ends of the first large rotating shaft (101), the small rotating shaft (102) and the second large rotating shaft (301) respectively penetrate through the top box (1) and the bottom box (3) and are provided with a motor (4), the front end face of the conveyor belt (1011) is pasted with a blackboard paster (1012).

2. A dust-free extended roller short term memory blackboard in accordance with claim 1, wherein: the front end face of the mounting box (2) is fixedly provided with a bearing plate (203), and the bearing plate (203) is located between the conveyor belt (1011) and the mounting box (2).

3. A dust-free extended roller short term memory blackboard in accordance with claim 2, wherein: first slot hole (201) and second slot hole (202) have been seted up respectively to both sides around mounting box (2) lower terminal surface, conveyer belt (1011) run through first slot hole (201) and second slot hole (202) in proper order, the upper and lower both sides of loading board (203) are provided with first rotary rod (5) and two second rotary rod (6) respectively, the inner wall of mounting box (2) is rotated and is installed two third rotary rods (7), both ends are rotated and are connected with head rod (501), two about first rotary rod (5) the upper end of head rod (501) all with the outer wall fixed mounting of STB (1), two both ends all are rotated and are connected with second connecting rod (601) about second rotary rod (6), two the upper end of second connecting rod (601) all with the outer wall fixed mounting of mounting box (2), first rotary rod (5), The outer sides of the two second rotating rods (6) and the two third rotating rods (7) are movably connected with the conveyor belt (1011).

4. A dust-free extended roller short term memory blackboard in accordance with claim 1, wherein: basin (8) are installed to the bottom of mounting box (2) inner wall, inner wall fixedly connected with fixed block (801) of basin (8), recess (8011) are all seted up to both sides around fixed block (801) up end, and the inside joint of rear side recess (8011) has fixture block (9), equal fixedly connected with branch (901) in the left and right sides of fixture block (9) up end, two the upper end fixedly connected with dead lever (902) of branch (901), big sponge (903) have been cup jointed to the outer wall of dead lever (902), the rear side fixedly connected with little sponge (904) of big sponge (903), the outer wall and blackboard sticker (1012) swing joint of little sponge (904).

5. The dust-free extended roller short term memory blackboard of claim 4, wherein: lower terminal surface fixedly connected with slider (802) of basin (8), the outer wall sliding connection of slider (802) has spout (803), the lower terminal surface of spout (803) and the inner wall fixed connection of mounting box (2), spout (803) are located between first slot hole (201) and second slot hole (202), the left side wall of mounting box (2) can be dismantled and be connected with chamber door (204).

Technical Field

The invention relates to the technical field of teaching aids, in particular to a dust-free extension roller short-term memory blackboard.

Background

The blackboard is a plane which can be repeatedly written by chalk, the board surface is hard and is mainly used for teaching, the blackboard is generally made of wood boards or ground glass and the like, and the blackboard can be written on by using specific writing materials such as chalk and the like; the traditional blackboard is limited to the size of the blackboard surface no matter how the writing area of the traditional blackboard is changed, and the traditional blackboard is fixed, so people design a flexible blackboard with a roller device, the product can greatly extend the writing area of the blackboard by using a curled blackboard sticker to match with a rotating shaft device, and the limitation of the blackboard surface is broken through.

The existing rollable blackboard has the following problems:

1. after the blackboard writing written on the blackboard by the teacher is rolled into a roll, the handwriting and the sticker rub with each other, the handwriting is fuzzy, important knowledge points cannot be reserved, and in addition, the blackboard writing of the class is erased before the next class, which has influence on the note taking of students;

2. the blackboard is the integral type, is difficult for changing after the blackboard face is impaired, and the change process is troublesome, and the engineering volume is big and the replacement cost is high.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a dust-free extension roller short-term memory blackboard which has the characteristic of being convenient for storing writing on the blackboard and is convenient for replacing the damaged blackboard surface.

In order to achieve the purpose, the invention provides the following technical scheme: dustless extension roller bearing short-term memory blackboard, including the STB, the lower terminal surface fixedly connected with mounting box of STB, box at the bottom of the rear side fixedly connected with of the lower terminal surface of mounting box, little pivot and first big pivot are installed to the inner wall of STB from the past to the back, the outside of first big pivot has been around the connection conveyer belt and film, the other end and the little pivot wire-wound of film, the other end of conveyer belt runs through the STB and extends to the place ahead of mounting box, the other end of conveyer belt has been around the connection the big pivot of second, the big pivot of second is located the inside of end box, the left end of the big pivot of first big pivot, little pivot and second runs through STB and end box respectively and installs the motor, the preceding terminal surface of conveyer belt is pasted and is had the blackboard sticker.

In order to support the blackboard sticker and further facilitate the teacher to write, as the preferable dust-free extension roller short-term memory blackboard of the invention, the front end face of the mounting box is fixedly provided with the bearing plate, and the bearing plate is positioned between the conveyor belt and the mounting box.

In order to increase the drying area of the blackboard paster, the dust-free extension roller short-term memory blackboard is preferable, the front side and the rear side of the lower end surface of the mounting box are respectively provided with a first long hole and a second long hole, the conveyor belt sequentially penetrates through the first long hole and the second long hole, the upper side and the lower side of the bearing plate are respectively provided with a first rotating rod and two second rotating rods, the inner wall of the mounting box is rotatably provided with two third rotating rods, the left and right ends of the first rotating rod are rotatably connected with first connecting rods, the upper ends of the two first connecting rods are fixedly arranged on the outer wall of the top box, the left and right ends of the two second rotating rods are rotatably connected with second connecting rods, the upper ends of the two second connecting rods are fixedly arranged on the outer wall of the mounting box, the outsides of the first rotating rod, the two second rotating rods and the two third rotating rods are movably connected with the conveying belt.

In order to facilitate automatic cleaning of handwriting on a blackboard sticker, the dust-free extension roller short-term memory blackboard is preferably characterized in that a water tank is mounted at the bottom of the inner wall of a mounting box, a fixing block is fixedly connected to the inner wall of the water tank, grooves are formed in the front side and the rear side of the upper end face of the fixing block, a clamping block is clamped in the rear side groove, supporting rods are fixedly connected to the left side and the right side of the upper end face of the clamping block, fixing rods are fixedly connected to the upper ends of the two supporting rods, a large sponge is sleeved on the outer wall of each fixing rod, a small sponge is fixedly connected to the rear side of the large sponge, and the outer wall of the small sponge is movably connected with the blackboard sticker.

In order to conveniently detach the water tank and the sponge and further clean the sponge, the dust-free extension roller short-term memory blackboard is preferably characterized in that the lower end face of the water tank is fixedly connected with a sliding block, the outer wall of the sliding block is connected with a sliding groove in a sliding mode, the lower end face of the sliding groove is fixedly connected with the inner wall of the mounting box, the sliding groove is located between the first long hole and the second long hole, and the left side wall of the mounting box is detachably connected with a box door.

Compared with the prior art, the invention has the beneficial effects that:

1. this kind of dustless extension roller bearing short-term memory blackboard, the teacher writes the back on the blackboard sticker, starts three motor, the equal clockwise rotation of the big pivot of first big pivot and second, and then convolute the conveyer belt in the outside of first big pivot, and the rotatory film of little pivot is walked around out and is covered on the blackboard sticker simultaneously, and the wearing and tearing of the reducible pivot of film to the writing, and then can keep down the writing of writing to be convenient for the student looks over in the study.

2. This kind of dustless extension roller bearing short-term memory blackboard, can directly follow the conveyer belt with the damage part after blackboard sticker damages and cut off, and paste the blackboard sticker of equidimension again, if need wholly change blackboard sticker, only need to prepare the blackboard sticker of regulation size, turn to the end with the big pivot of second, then fix the one end of blackboard sticker on the conveyer belt, start first big pivot, can be like rolling up the toilet paper and go on pasting the scroll with the blackboard, thereby reach the effect of conveniently replacing blackboard sticker.

3. This kind of dustless extension roller bearing short-term memory blackboard, be covered with the writing on the blackboard sticker of storage, can make the conveyer belt conveying downwards through the big pivot of pivot second, the rear side and the blackboard sticker contact of sponge in the data send process, and then erase the writing on the blackboard sticker, the water stain is left on the sticker surface after erasing the writing, rotate the conveyer belt that shifts up in the first big pivot again, the conveyer belt through with a plurality of rotary rod swing joint, and then increase the area that dries of blackboard sticker, the blackboard sticker that makes to expose in the device outside is in dry state, the teacher of being convenient for writes the blackboard writing at any time.

4. This kind of dustless extension roller bearing short-term memory blackboard, when need not rinse blackboard sticker surface, shift up big sponge wholly, install the lower extreme of fixture block in the recess that leans on the front side again, and then make the rear side of little sponge and blackboard sticker separation to reach the effect of adjusting two sponge positions.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a short term memory blackboard with a dust-free extension roller according to the present invention;

FIG. 2 is a cross-sectional view of a dust-free extended roller short-term memory blackboard in accordance with the present invention;

FIG. 3 is a cross-sectional view of the conveyor belt and blackboard sticker of the present invention;

FIG. 4 is a view of the structure of the sink of the present invention;

FIG. 5 is a schematic view of the invention at point A.

In the figure, 1, a set-top box; 101. a first large rotating shaft; 102. a small rotating shaft; 1011. a conveyor belt; 1012. blackboard stickers; 1021. a film; 2. mounting a box; 201. a first long hole; 202. a second long hole; 203. a carrier plate; 204. a box door; 3. a bottom case; 301. a second large rotating shaft; 4. a motor; 5. a first rotating rod; 501. a first connecting rod; 6. a second rotating rod; 601. a second connecting rod; 7. a third rotating rod; 8. a water tank; 801. a fixed block; 8011. a groove; 802. a slider; 803. a chute; 9. a clamping block; 901. a strut; 902. fixing the rod; 903. big sponge; 904. a small sponge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-5, the present invention provides the following technical solutions: dustless extension roller bearing short-term memory blackboard, including STB 1, the lower terminal surface fixedly connected with mounting box 2 of STB 1, box 3 at the bottom of the rear side fixedly connected with of the lower terminal surface of mounting box 2, little pivot 102 and first big pivot 101 are installed to the inner wall of STB 1 from the past to the back, the outside of first big pivot 101 has been around having been connect conveyer belt 1011 and film 1021, the other end and the little pivot 102 of film 1021 are around connecing, the other end of conveyer belt 1011 runs through STB 1 and extends to the place ahead of mounting box 2, the other end of conveyer belt 1011 has been around having been connected with the big pivot 301 of second, the big pivot 301 of second is located the inside of end box 3, first big pivot 101, the left end of little pivot 102 and the big pivot 301 of second runs through STB 1 and end box 3 respectively and installs motor 4, the preceding terminal surface paste of conveyer belt 1011 has blackboard sticker 1012.

In this embodiment: after a teacher writes on the blackboard sticker 1012, the three motors 4 are started, the first large rotating shaft 101 and the second large rotating shaft 301 rotate clockwise, the conveyor belt 1011 is wound on the outer side of the first large rotating shaft 101, meanwhile, the small rotating shaft 102 rotates the film 1021 to wind out and cover the blackboard sticker 1012, the film 1021 can reduce abrasion of the rotating shafts on writing, and the written writing can be stored and can be conveniently checked by students; can directly follow conveyer belt 1011 after blackboard sticker 1012 damages and cut off the damage part to paste blackboard sticker 1012 of the same size again, if need wholly change blackboard sticker, only need to prepare the blackboard sticker 1012 of regulation size, turn to the end with the big pivot 301 of second, then fix the one end of blackboard sticker 1012 on conveyer belt 1011, start first big pivot 101, can roll up blackboard sticker 1012 like rolling up toilet paper, thereby reach the effect of conveniently replacing blackboard sticker 1012.

As a technical optimization scheme of the invention, the bearing plate 203 is fixedly installed on the front end surface of the installation box 2, and the bearing plate 203 is positioned between the conveyor belt 1011 and the installation box 2.

In this embodiment: through the rear side swing joint who makes loading board 203 and blackboard sticker 1012, and then under the condition that does not influence blackboard sticker 1012 and reciprocate, can support convenient to use person to write to loading board 203 simultaneously.

As a technical optimization scheme of the invention, a first long hole 201 and a second long hole 202 are respectively formed in the front side and the rear side of the lower end surface of a mounting box 2, a conveyor belt 1011 sequentially penetrates through the first long hole 201 and the second long hole 202, a first rotary rod 5 and two second rotary rods 6 are respectively arranged on the upper side and the lower side of a bearing plate 203, two third rotary rods 7 are rotatably mounted on the inner wall of the mounting box 2, first connecting rods 501 are rotatably connected to the left end and the right end of the first rotary rod 5, the upper ends of the two first connecting rods 501 are fixedly mounted with the outer wall of a top box 1, second connecting rods 601 are rotatably connected to the left end and the right end of the two second rotary rods 6, the upper ends of the two second connecting rods 601 are fixedly mounted with the outer wall of the mounting box 2, and the outer sides of the first rotary rod 5, the two second rotary rods 6 and the two third rotary rods 7 are movably connected with the conveyor belt 1011.

In this embodiment: the writing is covered with on the blackboard sticker 1012 of storage, can make conveyer belt 1011 conveying downwards through the big pivot 301 of pivot second, the rear side and the blackboard sticker 1012 contact of sponge 904 in the data send process, and then erase the writing on blackboard sticker 1012, the sticker surface leaves water stain after erasing the writing, it shifts up conveyer belt 1011 on the first big pivot 101 to rotate again, conveyer belt 1011 is through with a plurality of rotary rod swing joint, and then increase blackboard sticker 1012's the area of drying, make the blackboard sticker 1012 that exposes in the device outside be in dry state, be convenient for the teacher to write the blackboard writing at any time.

As a technical optimization scheme of the invention, a water tank 8 is arranged at the bottom of the inner wall of a mounting box 2, a fixing block 801 is fixedly connected to the inner wall of the water tank 8, grooves 8011 are respectively formed in the front side and the rear side of the upper end face of the fixing block 801, a clamping block 9 is clamped in the rear side groove 8011, supporting rods 901 are respectively fixedly connected to the left side and the right side of the upper end face of the clamping block 9, fixing rods 902 are fixedly connected to the upper ends of the two supporting rods 901, a large sponge 903 is sleeved on the outer wall of each fixing rod 902, a small sponge 904 is fixedly connected to the rear side of the large sponge 903, and the outer wall of the small sponge 904 is movably connected with a blackboard sticker 1012.

In this embodiment: when the surface of the blackboard sticker 1012 does not need to be cleaned, the large sponge 903 is integrally moved upwards, the lower end of the fixture block 9 is installed in the groove 8011 close to the front side, and then the rear side of the small sponge 904 is separated from the blackboard sticker 1012, so that the effect of adjusting the positions of the two sponges is achieved.

As a technical optimization scheme of the present invention, a sliding block 802 is fixedly connected to a lower end surface of the water tank 8, a sliding groove 803 is slidably connected to an outer wall of the sliding block 802, a lower end surface of the sliding groove 803 is fixedly connected to an inner wall of the mounting box 2, the sliding groove 803 is located between the first long hole 201 and the second long hole 202, and a box door 204 is detachably connected to a left side wall of the mounting box 2.

In this embodiment: when the sponge needs to be cleaned, the box door 204 is opened, the sliding block 802 slides out from the front side of the sliding groove 803, the clamping block 9 is separated from the groove 8011, and then the sponge and the water tank 8 are cleaned respectively.

The working principle and the using process of the invention are as follows: after the teacher writes on the blackboard sticker 1012, the three motors 4 are started, the first large rotating shaft 101 and the second large rotating shaft 301 both rotate clockwise, further, the conveyor belt 1011 is wound around the outside of the first large rotating shaft 101, and the film 1021 is wound out by the rotation of the small rotating shaft 102 and covered on the blackboard sticker 1012, further, the written handwriting can be stored, the stored blackboard sticker 1012 is fully covered with the handwriting, the second big rotating shaft 301 can make the conveyer belt 1011 transfer downwards, the back side of the small sponge 904 contacts the blackboard paster 1012 during the transferring process, then erasing the writing on the blackboard sticker 1012, leaving water stain on the surface of the sticker after erasing the writing, then rotating the first big rotating shaft 101 to move up the conveyor belt 1011, the conveyor belt 1011 is movably connected with a plurality of rotating rods, further increasing the drying area of the blackboard sticker 1012, so that the blackboard sticker 1012 exposed outside the device is in a dry state, and a teacher can write a blackboard at any time conveniently.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.