CN212046589U

CN212046589U - A convertible blackboard for sports teaching

Info

Publication number: CN212046589U
Application number: CN201922503179.3U
Authority: CN
Inventors: 石征凯
Original assignee: Liaoning Jianzhu Vocational College
Current assignee: Liaoning Jianzhu Vocational College
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-12-01
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a convertible blackboard for sports teaching includes blackboard, leads to groove, connecting plate and lifter, the bottom plate is all installed at the both ends of connecting plate, the base is all installed on the top of bottom plate, the spout has all been seted up to the inside of base, and the inside of spout all is provided with the lifter, first trapezoidal tooth is all evenly installed to one side of lifter, logical groove has all been seted up on the lateral wall of the inboard one end of base. The utility model discloses a mutually supporting of base and lifter is used, when needs adjusting device's use height, upwards mentions the lifter, and the lifter can upwards slide in the inside of spout this moment, and the use of device highly obtains increasing, through outside pulling handle, and fly leaf compression spring makes separation between trapezoidal tooth of second and the first trapezoidal tooth this moment, and the lifter can freely slide in the inside of spout this moment to can select the use height that reduces the lifter, and is simple and convenient.

Description

A convertible blackboard for sports teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is a convertible blackboard for sports teaching.

Background

The teaching aid is a material object aiming at propagating science and technology and educating people, is a complete science and technology medium, is an important blackboard in the teaching aid, is not particularly a black board, is a plane capable of being repeatedly written in the traditional sense, is hard in board surface, is mainly used for teaching, and is an indispensable device in teenager science and technology activities.

The blackboard for the current sports teaching is because its simple structure, and the blackboard is very inconvenient when removing the use, and the use height of blackboard can't be adjusted, and the in-service use effect of blackboard is relatively poor, and the blackboard for the current sports teaching can't overturn the teaching, and the size of the writing board face of blackboard can't be adjusted, and the limitation of blackboard when using is great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a convertible blackboard for sports teaching to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a turnover blackboard for physical education comprises a blackboard, through grooves, a connecting plate and a lifting rod, wherein bottom plates are arranged at two ends of the connecting plate, a base is arranged at the top end of each bottom plate, sliding grooves are formed in the base, the lifting rod is arranged in each sliding groove, first trapezoidal teeth are uniformly arranged on one side of each lifting rod, the through grooves are formed in the side wall of one end of the inner side of the base, connecting blocks are arranged at the top end and the bottom end of the inner side of each lifting rod, a fixing rod is arranged at one end, away from the lifting rod, of each connecting block, a limiting sleeve is arranged at the bottom end, away from one end of each connecting block, of each fixing rod, a sliding sleeve is sleeved outside the upper end of each fixing rod, a turntable is arranged at one end, away from the sliding sleeve, of each turntable is arranged at one end, away, the inside on blackboard top has seted up and has put the thing groove.

Preferably, the constant head tank has all been seted up to the inside one side of base, the locating hole has all been seted up on the base is close to the lateral wall of constant head tank one side, the inside of locating hole all is provided with the fly leaf, and the fly leaf keeps away from one side of lifter and all installs the handle, the second trapezoidal tooth with first trapezoidal tooth intermeshing is all evenly installed to one side that the locating hole is close to the lifter, the spring is all installed to the top and the bottom of constant head tank, and the spring is close to the one end of second trapezoidal tooth and all is connected with the fly leaf.

Preferably, the storage groove is internally provided with a built-in plate, and the top end of the built-in plate is provided with a hanging rod.

Preferably, the cross-sectional shape of peg is "Y" type.

Preferably, the top ends of the lifting rods are provided with handles.

Preferably, the universal wheels are installed on two sides of the bottom end of the bottom plate, and the braking devices are installed inside the universal wheels.

Compared with the prior art, the beneficial effects of the utility model are that: the turnover blackboard for sports teaching is used by mutually matching the base and the lifting rod, when the use height of the device is required to be adjusted, the lifting rod is lifted upwards, the lifting rod can slide upwards in the sliding groove, the use height of the device is increased, the handle is pulled outwards, the movable plate compresses the spring, the second trapezoidal tooth is separated from the first trapezoidal tooth, the lifting rod can slide freely in the sliding groove, the use height of the lifting rod can be reduced selectively, the use height of the device is reduced, the turnover blackboard is simple and convenient, the stability is high, by mutually matching the built-in plate and the blackboard, when the use area of the device is required to be increased, the sliding sleeve can slide upwards, then the turntable is turned, the blackboard is turned over, after the turnover is finished, the blackboard is inserted into the limiting sleeve again, and the stability of the device in use is improved, at the moment, the hanging rod is pulled out, so that the using area of the device can be increased, the device is simple to use, teaching display courseware such as posters can be hung by using the hanging rod, and the practicability of the device is improved.

Drawings

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

fig. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic side cross-sectional view of the present invention;

fig. 4 is a right side view of the base of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a storage groove; 2. a hanging rod; 3. a built-in plate; 4. a blackboard; 5. a sliding sleeve; 6. a turntable; 7. fixing the rod; 8. connecting blocks; 9. a through groove; 10. a chute; 11. a base plate; 12. a connecting plate; 13. a universal wheel; 14. a base; 15. a limiting sleeve; 16. a first trapezoidal tooth; 17. a lifting rod; 18. positioning a groove; 19. positioning holes; 20. a handle; 21. a movable plate; 22. a spring; 23. a second trapezoidal tooth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a turnover blackboard for physical education comprises a blackboard 4, through grooves 9, a connecting plate 12 and lifting rods 17, wherein bottom plates 11 are arranged at two ends of the connecting plate 12, a base 14 is arranged at the top end of each bottom plate 11, sliding grooves 10 are formed in the base 14, the lifting rods 17 are arranged in the sliding grooves 10, first trapezoidal teeth 16 are uniformly arranged on one sides of the lifting rods 17, the through grooves 9 are formed in the side walls of one end of the inner side of the base 14, connecting blocks 8 are arranged at the top end and the bottom end of the inner side of each lifting rod 17, a fixing rod 7 is arranged at one end of each connecting block 8 far away from the lifting rod 17, a limiting sleeve 15 is arranged at the bottom end of each fixing rod 7 far away from one end of each connecting block 8, a sliding sleeve 5 is sleeved outside the upper end of each fixing rod 7, a turntable 6 is arranged at one end of each sliding sleeve 5 far away from the lifting rod 17, a blackboard 4 is, the inside of blackboard 4 top is seted up and is put thing groove 1.

In this implementation: the positioning groove 18 is arranged on one side of the inside of the base 14, the positioning holes 19 are arranged on the side wall of the base 14 close to one side of the positioning groove 18, the movable plates 21 are arranged inside the positioning holes 19, the handles 20 are arranged on one sides of the movable plates 21 far away from the lifting rods 17, the second trapezoidal teeth 23 meshed with the first trapezoidal teeth 16 are uniformly arranged on one sides of the positioning holes 19 close to the lifting rods 17, the springs 22 are arranged at the top end and the bottom end of the positioning groove 18, one ends of the springs 22 close to the second trapezoidal teeth 23 are connected with the movable plates 21, the use height of the device can be adjusted by using the structure, the device is more convenient, safer and higher in practicability, the built-in plate 3 is arranged inside the storage groove 1, the hanging rod 2 is arranged at the top end of the built-in plate 3, the teaching poster can be hung by using the hanging rod 2, the applicability of the device is, the use convenience of the device is realized by the plurality of groups of hanging rods 2, and handles are arranged at the top ends of the lifting rods 17. Universal wheels 13 are mounted on two sides of the bottom end of the bottom plate 11, and braking devices are mounted inside the universal wheels 13, so that the device can be moved conveniently.

The working principle is as follows: firstly, the blackboard for sports teaching can be conveniently moved to a place needing to be used through the universal wheel 13, when the using height of the device needs to be adjusted, the lifting rod 17 is lifted upwards through the handle, at the moment, the inclined surfaces of the first trapezoidal teeth 16 and the second trapezoidal teeth 23 are mutually extruded, the movable plate 21 can be extruded to slide in the positioning holes 19, the spring 22 is extruded, the spring 22 is contracted, at the moment, the lifting rod 17 can slide upwards in the sliding groove 10, the using height of the device is increased, when the using height of the device needs to be reduced, the handle 20 can be pulled outwards, at the moment, the movable plate 21 compresses the spring 22, the second trapezoidal teeth 23 are separated from the first trapezoidal teeth 16, at the moment, the lifting rod 17 can freely slide in the sliding groove 10, so that the using height of the lifting rod 17 can be selected to be reduced, and the using height of the device can be reduced, simple and convenient, and stability is strong, when needs increase the usable floor area of device, can upwards slide sliding sleeve 5, when the bottom of blackboard 4 leaves the inside of stop collar 15, through upset carousel 6, thereby make blackboard 4 overturn, after the upset is accomplished, insert the inside of stop collar 15 with blackboard 4 again, stability when improving the device and using, this moment through pulling peg 2, thereby take built-in board 3 out, can increase the usable floor area of device, the actual result of use of device is better.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a convertible blackboard for sports teaching, includes blackboard (4), leads to groove (9), connecting plate (12) and lifter (17), its characterized in that: the connecting plate is characterized in that bottom plates (11) are installed at two ends of the connecting plate (12), bases (14) are installed at the top ends of the bottom plates (11), sliding grooves (10) are formed in the bases (14), lifting rods (17) are arranged in the sliding grooves (10), first trapezoidal teeth (16) are evenly installed on one sides of the lifting rods (17), through grooves (9) are formed in the side wall of one end of the inner side of each base (14), connecting blocks (8) are installed at the top end and the bottom end of the inner side of each lifting rod (17), fixing rods (7) are installed at the ends, far away from the lifting rods (17), of the connecting blocks (7), limiting sleeves (15) are installed at the bottom ends, far away from the connecting blocks (8), of the fixing rods (7) are sleeved with sliding sleeves (5), and turntables (6) are installed at the ends, far away from the lifting rods (17), of the sliding sleeves (, the blackboard is installed to the one end that sliding sleeve (5) were kept away from in carousel (6), and the bottom of blackboard (4) extends into the inside of stop collar (15), the inside on blackboard (4) top has been seted up and has been put thing groove (1).

2. The flip-up blackboard for sports teaching according to claim 1, characterized in that: locating slot (18) have all been seted up to inside one side of base (14), locating hole (19) have all been seted up on base (14) are close to the lateral wall of locating slot (18) one side, the inside of locating hole (19) all is provided with fly leaf (21), and fly leaf (21) keep away from one side of lifter (17) and all install handle (20), one side that locating hole (19) are close to lifter (17) all evenly installs second trapezoidal tooth (23) with first trapezoidal tooth (16) intermeshing, spring (22) are all installed to the top and the bottom of locating slot (18), and the one end that spring (22) are close to second trapezoidal tooth (23) all is connected with fly leaf (21).

3. The flip-up blackboard for sports teaching according to claim 1, characterized in that: the inside of putting thing groove (1) is provided with built-in board (3), peg (2) are installed on the top of built-in board (3).

4. The flip-up blackboard for sports teaching according to claim 3, characterized in that: the section of the hanging rod (2) is Y-shaped.

5. The flip-up blackboard for sports teaching according to claim 1, characterized in that: handles are mounted at the top ends of the lifting rods (17).

6. The flip-up blackboard for sports teaching according to claim 1, characterized in that: universal wheels (13) are installed on two sides of the bottom end of the bottom plate (11), and braking devices are installed inside the universal wheels (13).