CN214984449U

CN214984449U - Teaching aid on tourism line

Info

Publication number: CN214984449U
Application number: CN202120635949.4U
Authority: CN
Inventors: 朱珊珊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-12-03
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a teaching aid on a tourism line, which relates to the field of teaching equipment and comprises a bottom plate, wherein a vertical support column is fixedly connected at the center of the top surface of the bottom plate, horizontal connecting rods are fixedly connected at the upper and lower ends of the support column, the two connecting rods run through the support column and are parallel to the short edge of the bottom plate, the two ends of the connecting rods are symmetrically positioned at the two sides of the axle center of the support column, a horizontal sliding device is fixedly connected on the two connecting rods, a blackboard is connected on the sliding device in a sliding way, vertical support plates are arranged around the bottom of the bottom plate, a containing box is fixedly connected at the bottom of the support plates, a containing space is formed between the support plates and the bottom plate and the containing box, the bottom plate is movably connected with the support plates, a lifting device for driving the bottom plate to move up and down is arranged in the containing space, the utility model can reduce the space occupied by the whole blackboard under the condition of ensuring the use area of the blackboard by arranging the sliding device, the teacher can use the teaching aid at home to carry out on-line teaching.

Description

Teaching aid on tourism line

Technical Field

The utility model relates to a teaching equipment field especially relates to a teaching aid on tourism line.

Background

Due to the sudden outbreak of an epidemic, many people, including students, have had to fall out; in order to enable students to be free from delaying learning, online teaching becomes a remedy means adopted by each school, online teaching teachers mostly adopt PPT to explain contents for the students, but for the subjects with larger graphic structure knowledge such as tourism, oral explanation by the teachers is not vivid enough, and the students can be deeply understood by visually representing and sketching on the graphics; however, most teachers in online teaching are limited in places and cannot install large-area blackboards.

SUMMERY OF THE UTILITY MODEL

The utility model provides a teaching aid on the tourism line provides a folding teaching blackboard that uses, makes teachers also can have the blackboard of sufficient area in limited space and use to the not enough that prior art exists.

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

the utility model provides a teaching aid on tourist line, includes the bottom plate, the vertical support column of fixedly connected with in bottom plate top surface center department, the equal horizontally connecting rod of fixedly connected with in upper and lower both ends of support column, two the connecting rod runs through the support column and with the minor face of bottom plate is parallel, the both ends symmetrical position of connecting rod is in the axle center both sides of support column, two fixedly connected with horizontally slider on the connecting rod, sliding connection has the blackboard on the slider, the bottom plate bottom all is equipped with vertical backup pad all around, the bottom fixedly connected with containing box of backup pad, the backup pad with the bottom plate with form the accommodation space between the containing box, the bottom plate with backup pad swing joint, be equipped with the drive in the accommodation space the elevating gear that the bottom plate reciprocated.

Through adopting above-mentioned technical scheme, control the lift of universal wheel through elevating gear, drive elevating gear puts down the universal wheel when needing to remove the light, and convenient removal light is to required scene, when treating to remove suitable place, drives elevating gear and makes the universal wheel shift out or between the immigration two backup pads, can make the light through the steady placing of backup pad subaerial, need not the manpower and prevents its slip.

The lifting device comprises a motor fixedly connected to the top of the outer portion of the containing box, the output end of the motor extends in the vertical direction, and the output end of the motor is fixedly connected with a first helical gear; the bottom surface of the bottom plate is fixedly connected with a vertical lifting plate, the bottom of the lifting plate is fixedly connected with a first sliding plate parallel to the short edge of the bottom plate, the bottom of the first sliding plate is fixedly connected with a semicircular second sliding plate, and lifting slideways matched with the first sliding plate and the second sliding plate in shape are recessed on one side surfaces, close to the motor, of the first sliding plate and the second sliding plate along the direction far away from the motor; a vertical support frame is fixedly connected to the top surface of the outer part of the containing box, the support frame is positioned between the motor and the lifting plate, a horizontal rotating shaft is rotatably connected to the support frame, a second helical gear is fixedly connected to the rotating shaft, and the first helical gear is meshed with the second helical gear; the both ends fixedly connected with lifter of pivot, lifter fixedly connected with is located the lug in the lift slide.

The sliding device comprises first sliding rods which are fixedly connected to two ends of the connecting rod and perpendicular to the long edge direction of the connecting rod, semicircular second sliding rods are fixedly connected between two ends of each first sliding rod, the two arc ends of each second sliding rod extend to form vertical parts parallel to the first sliding rods, folding slide ways matched with the first sliding rods and the second sliding rods in shape are recessed on the side faces, close to each other, of two pairs of first sliding rods and the second sliding rods which are distributed at the upper end and the lower end of the supporting column, first openings communicated with the folding slide ways and used for moving out the blackboard are formed in the second sliding rods, and the number of the first openings is two and the first openings are distributed at the vertical parts of the second sliding rods; the top surface and the equal fixedly connected with slip post in bottom surface of blackboard, the tip of slip post all rotates and is connected with the ball, the ball is located in the folding slide.

Lie in the blackboard with one side the ball sets up to two at least, two the ball is located respectively the both ends on blackboard long limit, works as the ball along when folding slide slides, at last through first open-ended ball diameter is greater than first open-ended diameter, all the other the diameter of ball all is less than first open-ended diameter.

The blackboard with be equipped with the hasp between the first litter, bottom plate top surface fixedly connected with limiting plate, the limiting plate is located folding slide is kept away from one side of support column, the limiting plate is located first opening is close to one side of support column, the movable part fixed connection of hasp is in the limiting plate top surface, fixedly connected with stopper on the first litter, the stopper is located folding slide is close to one side of support column, the fixed part fixed connection of hasp is in on the stopper.

The front of containing box has seted up the second opening, rotate on the second open-ended mouth wall be connected with the door body that the second opening shape matches, fixedly connected with handle on the door body, the bottom fixedly connected with universal wheel of containing box.

The blackboard eraser is characterized in that a containing groove for containing chalks and a blackboard eraser is formed in the bottom plate, and the containing groove is located on one side, away from the supporting column, of the first sliding rod and is parallel to the long edge of the bottom plate.

Compared with the prior art, the utility model discloses possess following beneficial effect: by arranging the sliding device, the occupied space of the whole blackboard can be reduced under the condition of ensuring the use area of the blackboard, and a teacher can conveniently use the blackboard at home to carry out online teaching; simultaneously add elevating gear, can carry out the regulation of height according to the live equipment that different mr used, also can change the position through the universal wheel at any time in use, use the tow sides of blackboard, guarantee high efficiency and the convenience of using.

Drawings

The invention is described in the following with reference to the accompanying drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of the lifting device of the present invention.

Labeled as: 1. a base plate; 2. a support pillar; 3. a connecting rod; 4. a blackboard; 5. a support plate; 6. a storage box; 7. a motor; 8. a first helical gear; 9. a lifting plate; 10. a first slide plate; 11. a second slide plate; 12. a lifting slideway; 13. a support frame; 14. a rotating shaft; 15. a second helical gear; 16. a lifting rod; 17. a bump; 18. a first slide bar; 19. a second slide bar; 20. folding the slideway; 21. a first opening; 22. a sliding post; 23. a ball bearing; 24. a limiting plate; 25. locking; 26. a limiting block; 27. a second opening; 28. a door body; 29. a handle; 30. a receiving groove; 31. a universal wheel.

Detailed Description

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

The utility model provides a teaching aid on tourist line, as shown in fig. 1-2, comprising a base plate 1, 1 top surface center department fixedly connected with vertical support column 2 of bottom plate, the equal fixed connection in both ends has horizontally connecting rod 3 about support column 2, two connecting rod 3 run through support column 2 and are parallel with bottom plate 1's minor face, the both ends symmetry of connecting rod 3 is located support column 2's axle center both sides, fixedly connected with horizontally slider on two connecting rod 3, slider goes up sliding connection has blackboard 4, 1 bottom of bottom plate all is equipped with vertical backup pad 5 all around, the bottom fixedly connected with containing box 6 of backup pad 5, form the accommodation space between backup pad 5 and bottom plate 1 and the containing box 6, bottom plate 1 and 5 swing joint of backup pad, be equipped with the elevating gear that drive bottom plate 1 reciprocated in the accommodation space.

As shown in fig. 1-2, in the present application, two parallel blackboards 4 are slidably connected to the sliding device, when the blackboards 4 are used for online teaching, if one surface of the blackboard 4 is full, the position of the blackboard 4 can be adjusted by the sliding device, and the two blackboards 4 are alternately used, both surfaces of one blackboard 4 can be used for writing, which is equivalent to increase the area of the blackboard 4 by four times; simultaneously blackboard 4 highly can drive elevating gear for the height that corresponds the teacher's camera, and automatic adjustment is carried out to some teaching aids that the teacher's teaching used can be accomodate in containing box 6, makes things convenient for the teacher to use.

As shown in fig. 1 and 3, the lifting device includes a motor 7 fixedly connected to the top surface of the outside of the storage box 6, an output end of the motor 7 penetrates through the top surface of the storage box 6 and extends into the accommodating space, and an output end of the motor 7 extends in a vertical direction; the bottom surface of the bottom plate 1 is fixedly connected with a vertical lifting plate 9, the bottom of the lifting plate 9 is fixedly connected with a first sliding plate 10 parallel to the short edge of the bottom plate 1, the bottom of the first sliding plate 10 is fixedly connected with a semicircular second sliding plate 11, and lifting slideways 12 matched with the shapes of the first sliding plate 10 and the second sliding plate 11 are sunken on one side surfaces, close to the motor 7, of the first sliding plate 10 and the second sliding plate 11 in the direction far away from the motor 7; a vertical supporting frame 13 is fixedly connected to the top surface of the outer part of the containing box 6, the supporting frame 13 is positioned between the motor 7 and the lifting plate 9, a horizontal rotating shaft 14 is rotatably connected to the supporting frame 13, a second helical gear 15 is fixedly connected to the rotating shaft 14, and the first helical gear 8 is meshed with the second helical gear 15; two ends of the rotating shaft 14 are fixedly connected with a lifting rod 16, and the lifting rod 16 is fixedly connected with a lug 17 positioned in the lifting slideway 12.

As shown in fig. 1 and 3, when the height of the blackboard 4 needs to be adjusted, the motor 7 is activated, the first bevel gear 8 at the output end of the motor 7 rotates to drive the second bevel gear 15 engaged with the motor 7 to rotate, the second bevel gear 15 drives the rotating shaft 14 fixed with the second bevel gear 15 to rotate, when the rotating shaft 14 rotates, the lifting rod 16 fixed on the rotating shaft 14 rotates, the lug 17 moves along with the first bevel gear, the lug 17 moves in the lifting slideway 12, when in an initial position, the lug moves in the arc slideway part, the position of the whole device is unchanged, when the rotating shaft 14 rotates to a horizontal slideway, because the length of the lifting rod 16 is greater than the vertical distance from the first sliding plate 10 to the axis of the rotating shaft 14 when in the initial position, a vertical upward force is applied to the first sliding plate 10, the lifting plate 9 fixed with the first sliding plate 10 is driven to move upward, the lifting plate 9 transmits the force to the bottom plate 1, the bottom plate 1 and the blackboard 4 body on the bottom plate 1 move upward together, the purpose of adjusting the height of the blackboard 4 is achieved; the elevating means may be provided in plurality to increase the urging force of the elevating means for urging the blackboard 4 to rise upward.

As shown in fig. 1-2, the sliding device includes first slide rods 18 fixedly connected to two ends of the connecting rod 3 and perpendicular to the long side direction of the connecting rod 3, a semicircular second slide rod 19 is fixedly connected between two ends of each of the first slide rods 18, vertical portions parallel to the first slide rods 18 extend from two circular arc ends of the second slide rod 19, folding slide ways 20 matched with the first slide rods 18 and the second slide rods 19 in shape are recessed on the side surfaces, close to each other, of two pairs of the first slide rods 18 and the second slide rods 19 distributed at the upper and lower ends of the supporting column 2, first openings 21 communicated with the folding slide ways 20 and used for moving out a blackboard are formed in the second slide rods 19, and the number of the first openings is two and distributed at the vertical portions of the second slide rods; the top surface and the bottom surface of the blackboard 4 are fixedly connected with sliding columns 22, the end parts of the sliding columns 22 are rotatably connected with rolling balls 23, and the rolling balls 23 are positioned in the folding slide ways 20.

As shown in fig. 1-2, to use the blackboard 4 alternately, force is applied to the blackboard 4 to make it slide horizontally, at this time, the blackboard 4 will slide out from the first opening 21 to the outside of the first slide rod and the second slide rod, when most of the blackboard 4 slides out, the last ball 23 slides into the second slide rod 19, and slides into the first slide rod 18 on the other side through the second slide rod 19, at this time, opposite force is applied to the blackboard 4, the whole blackboard 4 body slides into the folding slideway 20 from the first opening 21 communicated with the slide rod on the one side, the blackboard 4 on the one side originally slides along opposite tracks at the same time, after completing this operation, the front and back of the blackboard 4 can be turned over, and the purpose of enlarging the writing area is achieved; if the teacher needs to show the contents on the two blackboards 4 at the same time, the half parts of the two blackboards 4 are positioned outside the slide rod, at the moment, the two blackboards 4 are distributed in tandem, and the positions are slightly adjusted to expose the whole surfaces of the two blackboards 4.

As shown in fig. 1-2, at least two balls 23 are provided on the same side of the blackboard 4, the two balls 23 are respectively located at two ends of the long side of the blackboard 4, when the balls 23 slide along the folding slide way 20, the diameter of the ball passing through the first opening is larger than that of the first opening, and the diameters of the rest balls are smaller than that of the first opening.

As shown in fig. 1-2, in order to prevent uneven force application by a person, the blackboard 4 slides in the folding slideway 20 and is inconvenient to use, the diameter of the ball 23 is designed to be limited, firstly, in the moving direction of the blackboard 4, the diameter of the ball 23 passing through the first opening 21 is smaller than that of the first opening 21, so that the blackboard 4 can smoothly slide out, and when the second ball 23 arrives, the diameter of the second ball 23 is larger than that of the first opening 21, so that the second ball can be blocked, and the ball 23 at the back can be prevented from sliding out of the folding slideway 20, so that the second ball can smoothly slide into the second slide rod 19 and further turn to the other side.

As shown in fig. 1-2, a latch 25 is disposed between the blackboard 4 and the first sliding rod 18, a limiting plate 24 is fixedly connected to the top surface of the bottom plate 1, the limiting plate 24 is located on one side of the folding slideway 20 away from the supporting column 2, the limiting plate 24 is located on one side of the first opening 21 close to the supporting column 2, a movable portion of the latch 25 is fixedly connected to the top surface of the limiting plate 24, a limiting block 26 is fixedly connected to the first sliding rod 18, the limiting block 26 is located on one side of the folding slideway 20 close to the supporting column 2, and a fixed portion of the latch 25 is fixedly connected to the limiting block 26.

As shown in FIGS. 1-2, in order to maintain the writing stability of the blackboard 4 when the blackboard 4 is not required to be moved, the locking device is provided to prevent the balls 23 from moving by themselves when writing, and at least two locking devices 25 are provided, and the positions are respectively arranged outside the positions where the balls at the left and right ends stay when the blackboard 4 is in use.

As shown in fig. 1-2, a second opening 27 is formed in the front surface of the storage box 6, a door 28 matching the shape of the second opening 27 is rotatably connected to the wall of the second opening 27, a handle 29 is fixedly connected to the door 28, and a universal wheel 31 is fixedly connected to the bottom of the storage box 6.

As shown in fig. 1-2, the face when using the blackboard is set to be the front, add containing box 6 and carry out the opening in the front again in the bottom of whole equipment, not only can accomodate other teaching aids, and can increase blackboard 4's height to a certain extent, make blackboard 4's height highly accord with the height that the human body used, simultaneously for the convenience of teacher's use, can be convenient carry out the alternate use of four faces of blackboard 4, containing box 6's bottom fixedly connected with universal wheel 31, when using blackboard 4, one side is full of, move the universal wheel 31 and write on another blackboard 4 forever, two blackboard 4 of rethreading, write in the reverse side of two blackboard 4.

As shown in fig. 1-2, in order to facilitate the use, the bottom plate 1 is provided with a receiving groove 30 for receiving chalk and a blackboard eraser, and the receiving groove 30 is located on the side of the first slide rod 18 far away from the supporting column 2 and is parallel to the long side of the bottom plate 1.

Above, only the embodiment of the present invention is provided, but the technical features of the present invention are not limited thereto, and any of the technical features of the present invention is based on the present invention, and the technical problems are basically the same, and the technical effects are basically the same, and the simple changes, equivalent replacements or modifications made are all covered by the protection scope of the present invention.

Claims

1. The utility model provides a teaching aid on tourism line, includes bottom plate (1), its characterized in that: the bottom plate is characterized in that a vertical support column (2) is fixedly connected to the center of the top surface of the bottom plate (1), horizontal connecting rods (3) are fixedly connected to the upper end and the lower end of the support column (2), the two connecting rods (3) penetrate through the support column (2) and are parallel to the short edge of the bottom plate (1), the two ends of each connecting rod (3) are symmetrically located on the two sides of the axis of the support column (2), horizontal sliding devices are fixedly connected to the two connecting rods (3), two blackboards (4) are slidably connected to the sliding devices, vertical support plates (5) are arranged on the periphery of the bottom plate (1), a containing box (6) is fixedly connected to the bottom of each support plate (5), an accommodating space is formed between each support plate (5) and the bottom plate (1) and the containing box (6), and the bottom plate (1) is movably connected with the support plates (5), the containing space is internally provided with a lifting device for driving the bottom plate (1) to move up and down.

2. The on-line tourist teaching aid of claim 1, wherein: the lifting device comprises a motor (7) fixedly connected to the outer top surface of the containing box (6), the output end of the motor (7) extends in the vertical direction, and the output end of the motor (7) is fixedly connected with a first bevel gear (8); a vertical lifting plate (9) is fixedly connected to the bottom surface of the bottom plate (1), a first sliding plate (10) parallel to the short side of the bottom plate (1) is fixedly connected to the bottom of the lifting plate (9), a semicircular second sliding plate (11) is fixedly connected to the bottom of the first sliding plate (10), and lifting slideways (12) matched with the first sliding plate (10) and the second sliding plate (11) in shape are recessed from one side surfaces, close to the motor (7), of the first sliding plate (10) and the second sliding plate (11) in the direction away from the motor (7); a vertical supporting frame (13) is fixedly connected to the top surface of the outer part of the containing box (6), the supporting frame (13) is positioned between the motor (7) and the lifting plate (9), a horizontal rotating shaft (14) is rotatably connected to the supporting frame (13), a second helical gear (15) is fixedly connected to the rotating shaft (14), and the first helical gear (8) is meshed with the second helical gear (15); the both ends fixedly connected with lifter (16) of pivot (14), lifter (16) fixedly connected with is located lug (17) in lift slide (12).

3. The on-line tourist teaching aid of claim 1, wherein: the sliding device comprises first sliding rods (18) which are fixedly connected with the two ends of the connecting rod (3) and are vertical to the long side direction of the connecting rod (3), a semicircular second sliding rod (19) is fixedly connected between the two ends of the two first sliding rods (18), vertical parts parallel to the first slide rod (18) extend from the two arc end parts of the second slide rod (19), folding slide ways (20) matched with the first slide rod (18) and the second slide rod (19) in shape are sunken on the side surfaces, close to each other, of the two pairs of the first slide rod (18) and the second slide rod (19) distributed at the upper end and the lower end of the supporting column (2), a first opening (21) which is communicated with the folding slideway (20) and is used for moving out the blackboard (4) is arranged on the second slide rod (19), the first openings (21) are two in number and distributed at the vertical part of the second slide bar (19); the top surface and the equal fixedly connected with slip post (22) in bottom surface of blackboard (4), the tip of slip post (22) all rotates and is connected with ball (23), ball (23) are located in folding slide (20).

4. The on-line tourist teaching aid of claim 3, wherein: lie in blackboard (4) are with one side ball (23) set up to two at least, two ball (23) are located respectively the both ends on blackboard (4) long limit, work as ball (23) along when folding slide (20) slide, pass through at last ball (23) diameter is greater than first opening (21) diameter, remaining ball (23) diameter all is less than first opening (21) diameter.

5. The on-line tourist teaching aid of claim 4, wherein: blackboard (4) with be equipped with hasp (25) between first litter (18), bottom plate (1) top surface fixedly connected with limiting plate (24), limiting plate (24) are located folding slide (20) are kept away from one side of support column (2), limiting plate (24) are located first opening (21) are close to one side of support column (2), the movable part fixed connection of hasp (25) is in limiting plate (24) top surface, fixedly connected with stopper (26) are gone up in first litter (18), stopper (26) are located folding slide (20) are close to one side of support column (2), the fixed part fixed connection of hasp (25) is in on stopper (26).

6. The on-line tourist teaching aid of claim 1, wherein: second opening (27) have been seted up in the front of containing box (6), rotate on the oral wall of second opening (27) be connected with door body (28) that second opening (27) shape matches, fixedly connected with handle (29) on door body (28), the bottom fixedly connected with universal wheel (31) of containing box (6).

7. The on-line tourist teaching aid of claim 3, wherein: the blackboard eraser is characterized in that an accommodating groove (30) for accommodating chalks and a blackboard eraser is formed in the bottom plate (1), and the accommodating groove (30) is located on one side, away from the supporting column (2), of the first sliding rod (18) and is parallel to the long edge of the bottom plate (1).