CN223212150U - Blackboard teaching aid convenient to flexible accomodate - Google Patents

Blackboard teaching aid convenient to flexible accomodate

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Publication number
CN223212150U
CN223212150U CN202422045863.2U CN202422045863U CN223212150U CN 223212150 U CN223212150 U CN 223212150U CN 202422045863 U CN202422045863 U CN 202422045863U CN 223212150 U CN223212150 U CN 223212150U
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CN
China
Prior art keywords
fixed column
blackboard
connecting rod
fixedly connected
hinged
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CN202422045863.2U
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Chinese (zh)
Inventor
田伟
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Shaanxi Yimi Technology Innovation Co ltd
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Shaanxi Yimi Technology Innovation Co ltd
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Priority to CN202422045863.2U priority Critical patent/CN223212150U/en
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Abstract

The utility model relates to the technical field of blackboard teaching aids, and discloses a blackboard teaching aid convenient to telescopic and store, which comprises a first fixed column, wherein the first fixed column is rotationally connected with a first threaded rod, the first threaded rod is fixedly connected with a rotary handle, the first threaded rod is in threaded connection with a threaded sleeve, the threaded sleeve is fixedly connected with a second fixed column, the first fixed column is hinged with a first connecting rod, the first connecting rod is hinged with a second connecting rod, and the second connecting rod is hinged on the second fixed column. According to the utility model, the blackboard can be contracted when not in use, the occupied space is reduced, the storage is convenient, the problem of reflection of light on the board surface caused by sunlight irradiation can be effectively avoided, the content on the blackboard can be clearly visible, the teaching effect is improved, the physical injury to teachers and students caused by sudden falling of the blackboard in the use process can be avoided, the occurrence of safety accidents is reduced, and the safety of personnel is ensured.

Description

Blackboard teaching aid convenient to flexible accomodate
Technical Field
The utility model relates to the technical field of blackboard teaching aids, in particular to a blackboard teaching aid convenient to telescopic and store.
Background
The teaching aid refers to a model, a physical object, a specimen, an instrument, a chart, a slide show and the like for explaining something, and comprises teaching equipment, a teaching instrument, practical training equipment, educational equipment, experimental equipment, a teaching specimen, a teaching model and the like, and the teaching aid is a physical object for the purposes of propagation technology and education people and is an indispensable instrument in teenager science and technology activities.
The prior art has the following defects that when the traditional blackboard teaching aid is used, the angle of a board surface is often fixed, sunlight directly irradiates and possibly reflects light, so that the content on the blackboard cannot be seen clearly, the teaching effect is reduced, the traditional blackboard teaching aid is often unable to be stably supported on the ground, safety accidents are easily caused by dumping when the user writes hard, the traditional blackboard teaching aid is often unable to shrink, and the traditional blackboard teaching aid occupies a large space and is inconvenient to store.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a blackboard teaching aid convenient to telescopic and store.
In order to achieve the purpose, the blackboard teaching aid convenient to stretch and retract comprises a first fixed column, wherein the first fixed column is connected with a first threaded rod in a rotating mode, the first threaded rod is fixedly connected with a rotary handle, the first threaded rod is connected with a threaded sleeve in a threaded mode, the threaded sleeve is fixedly connected with a second fixed column, the first fixed column is hinged with a first connecting rod, the first connecting rod is hinged with a second connecting rod, the second connecting rod is hinged to the second fixed column, a first sliding groove is formed in the second fixed column, a first sliding block is connected in the first sliding groove in a sliding mode, a third connecting rod is hinged to the first sliding block, a fourth connecting rod is hinged to the fourth connecting rod, a second sliding groove is formed in the first fixed column, and the second sliding groove is connected with a second sliding block in a sliding mode.
As a further description of the above technical solution:
The first fixed column is rotationally connected with a worm, the worm is fixedly connected with a knob, the worm is meshed with a worm wheel, the worm wheel is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a first blackboard, the first blackboard is slidingly connected with a second blackboard, and the second blackboard is rotationally connected onto the second fixed column through a connecting rod.
As a further description of the above technical solution:
The first fixed column fixedly connected with driving motor, driving motor's output fixedly connected with second threaded rod, second threaded rod threaded connection has the screw thread piece, screw thread piece fixedly connected with connecting plate, the connecting plate articulates the bracing piece, the bracing piece articulates there is the sliding block, be equipped with the third spout on the first fixed column, sliding connection has the sliding block in the third spout.
As a further description of the above technical solution:
The first fixing column is provided with a fourth sliding groove, a third sliding block is connected to the fourth sliding groove in a sliding mode, and the third sliding block is fixedly connected to the threaded block.
As a further description of the above technical solution:
The first fixed column is fixedly connected with a telescopic column, and the telescopic column is fixedly connected to the second fixed column.
As a further description of the above technical solution:
The first connecting rod is hinged with a fourth connecting rod, the second connecting rod is hinged with a third connecting rod, and the first fixing column is fixedly connected with a universal wheel.
As a further description of the above technical solution:
The rotation shaft is rotationally connected to the first fixed column, and the support rods are symmetrically provided with two groups.
The utility model has the following beneficial effects:
1. According to the utility model, the first threaded rod is driven to rotate by rotating the rotary handle, so that the second sliding block slides downwards in the second sliding groove, and the second fixed column moves to drive the second blackboard to shrink in the first blackboard, so that the second blackboard can shrink when not used, the occupied space is reduced, and the storage is convenient.
2. According to the utility model, the worm is driven to rotate through rotation of the knob, so that the problem of reflection of light on the board surface caused by sunlight irradiation can be effectively avoided, the content on the blackboard can be clearly seen, the teaching effect is improved, the driving motor drives the second threaded rod to rotate, one end of the supporting rod is attached to the ground, physical injury to teachers and students caused by sudden falling of the blackboard in the using process can be avoided, the occurrence of safety accidents is reduced, and the safety of personnel is ensured.
Drawings
Fig. 1 is a schematic perspective view of a blackboard teaching aid convenient for telescopic storage according to the present utility model;
fig. 2 is a schematic diagram of a part of a blackboard teaching aid for telescopic accommodation according to the present utility model;
Fig. 3 is a schematic diagram of a part of a blackboard teaching aid convenient for telescopic storage according to the second embodiment of the utility model;
Fig. 4 is a schematic diagram of a local explosion structure for conveniently telescopic and storing a blackboard teaching aid according to the present utility model.
Legend description:
1. The first fixing column, 2, universal wheels, 3, telescopic columns, 4, a first blackboard, 5, a second blackboard, 6, a second fixing column, 7, a rotating shaft, 8, a worm, 9, a knob, 10, a worm gear, 11, a first threaded rod, 12, a rotating handle, 13, a threaded sleeve, 14, a first connecting rod, 15, a second connecting rod, 16, a first sliding groove, 17, a first sliding block, 18, a third connecting rod, 19, a fourth connecting rod, 20, a second sliding block, 21, a second sliding groove, 22, a driving motor, 23, a second threaded rod, 24, a threaded block, 25, a connecting plate, 26, a supporting rod, 27, a sliding block, 28, a third sliding groove, 30, a fourth sliding groove, 31 and a third sliding block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the embodiment of the utility model provides a blackboard teaching aid convenient to retract and store, which comprises a first fixed column 1, wherein the first fixed column 1 is rotatably connected with a first threaded rod 11, the first threaded rod 11 is fixedly connected with a rotary handle 12, the first threaded rod 11 is in threaded connection with a threaded sleeve 13, the threaded sleeve 13 is fixedly connected with a second fixed column 6, the first fixed column 1 is hinged with a first connecting rod 14, the first connecting rod 14 is hinged with a second connecting rod 15, the second connecting rod 15 is hinged on the second fixed column 6, the second fixed column 6 is provided with a first sliding groove 16, the first sliding groove 16 is slidably connected with a first sliding block 17, the first sliding block 17 is hinged with a third connecting rod 18, the third connecting rod 18 is hinged with a fourth connecting rod 19, the fourth connecting rod 19 is hinged with a second sliding block 20, the first fixed column 1 is provided with a second sliding groove 21, the second sliding rod 21 is slidably connected with the second sliding block 20, the second sliding handle 12 is rotated to drive the first threaded rod 11 to rotate, so that the second sliding block 20 slides downwards in the second sliding groove 21, the second sliding groove 6 slides downwards, the second sliding rod 6 is driven to retract and store the blackboard 5 in the second sliding groove 4.
The first fixed column 1 is rotationally connected with a worm 8, the worm 8 is fixedly connected with a knob 9, the worm 8 is meshed with a worm wheel 10, the worm wheel 10 is fixedly connected with a rotating shaft 7, the rotating shaft 7 is fixedly connected with a first blackboard 4, the first blackboard 4 is slidingly connected with a second blackboard 5, the second blackboard 5 is rotationally connected with a second fixed column 6 through a connecting rod, the first fixed column 1 is fixedly connected with a driving motor 22, the output end of the driving motor 22 is fixedly connected with a second threaded rod 23, the second threaded rod 23 is in threaded connection with a threaded block 24, the threaded block 24 is fixedly connected with a connecting plate 25, the connecting plate 25 is hinged with a supporting rod 26, the supporting rod 26 is hinged with a sliding block 27, a third sliding groove 28 is arranged on the first fixed column 1, the third sliding groove 28 is slidingly connected with a sliding block 27, a fourth sliding groove 30 is arranged on the first fixed column 1, the fourth sliding groove 30 is slidingly connected with a third sliding block 31, the third slide block 31 is fixedly connected to the threaded block 24, the first fixed column 1 is fixedly connected with the telescopic column 3, the telescopic column 3 is fixedly connected to the second fixed column 6, the first connecting rod 14 is hinged with the fourth connecting rod 19, the second connecting rod 15 is hinged with the third connecting rod 18, the first fixed column 1 is fixedly connected with the universal wheel 2, the rotating shaft 7 is rotationally connected to the first fixed column 1, the supporting rods 26 are symmetrically provided with two groups, the worm 8 is rotationally driven by the knob 9 to rotate, so that the problem of reflection of light on the plate surface caused by sunlight can be effectively avoided, the content on the blackboard can be clearly seen, the teaching effect is improved, the driving motor 22 drives the second threaded rod 23 to rotate, one end of the supporting rod 26 is attached to the ground, the physical injury to teachers and students due to sudden toppling of the blackboard in the use process can be avoided, the occurrence of safety accidents is reduced, the personnel safety is ensured.
Working principle: firstly, when the blackboard teaching aid is not used, the first fixing column 1 is held by a hand to prevent movement, the rotary handle 12 is manually rotated, the rotary handle 12 is rotated to drive the first threaded rod 11 to rotate, the first threaded rod 11 is rotated to drive the threaded sleeve 13 to retract on the first threaded rod 11, thereby driving the second fixing column 6 to approach the first fixing column 1, enabling the first sliding block 17 to slide downwards in the first sliding groove 16, driving the vertical included angle between the second connecting rod 15 and the third connecting rod 18 to be smaller, enabling the vertical included angle between the first connecting rod 14 and the fourth connecting rod 19 to be smaller, enabling the second sliding block 20 to slide downwards in the second sliding groove 21, enabling the second fixing column 6 to move to drive the second blackboard 5 to retract in the first blackboard 4, enabling the second blackboard to retract when not used, reducing occupied space and being convenient to store, the knob 9 is manually rotated, the knob 9 rotates to drive the worm 8 to rotate, the worm 8 rotates to drive the worm wheel 10 to rotate, the worm wheel 10 rotates to drive the rotating shaft 7 to rotate, the rotating shaft 7 rotates to drive the first blackboard 4 and the second blackboard 5 to adjust the angle, so that the problem of reflecting light on the board surface caused by sunlight irradiation can be effectively avoided, the clear visibility of the content on the blackboard is ensured, the teaching effect is improved, then, the driving motor 22 is started, the driving motor 22 drives the second threaded rod 23 to rotate, the second threaded rod 23 rotates to drive the threaded block 24 to move downwards, the threaded block 24 moves downwards to drive the connecting plate 25 to move downwards, the supporting rod 26 is driven to overturn downwards, one end of the supporting rod 26 is attached to the ground, the physical injury to teachers and students caused by sudden falling of the blackboard in the using process can be avoided, the occurrence of safety accidents is reduced, the personnel safety is ensured.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.

Claims (7)

1.一种便于伸缩收纳黑板教具，包括第一固定柱(1)，其特征在于：所述第一固定柱(1)转动连接有第一螺纹杆(11)，所述第一螺纹杆(11)固定连接有旋转握把(12)，所述第一螺纹杆(11)螺纹连接有螺纹套筒(13)，所述螺纹套筒(13)固定连接有第二固定柱(6)，所述第一固定柱(1)铰接有第一连接杆(14)，所述第一连接杆(14)铰接有第二连接杆(15)，所述第二连接杆(15)铰接于第二固定柱(6)上，所述第二固定柱(6)上设有第一滑槽(16)，所述第一滑槽(16)内滑动连接有第一滑块(17)，所述第一滑块(17)铰接有第三连接杆(18)，所述第三连接杆(18)铰接有第四连接杆(19)，所述第四连接杆(19)铰接有第二滑块(20)，所述第一固定柱(1)上设有第二滑槽(21)，所述第二滑槽(21)内滑动连接有第二滑块(20)。1. A blackboard teaching aid that is easy to retract and store, comprising a first fixed column (1), characterized in that: the first fixed column (1) is rotatably connected to a first threaded rod (11), the first threaded rod (11) is fixedly connected to a rotating handle (12), the first threaded rod (11) is threadedly connected to a threaded sleeve (13), the threaded sleeve (13) is fixedly connected to a second fixed column (6), the first fixed column (1) is hinged to a first connecting rod (14), the first connecting rod (14) is hinged to a second connecting rod (15), the second connecting rod The connecting rod (15) is hinged to the second fixed column (6), the second fixed column (6) is provided with a first sliding groove (16), the first sliding groove (16) is slidably connected to a first slider (17), the first slider (17) is hinged to a third connecting rod (18), the third connecting rod (18) is hinged to a fourth connecting rod (19), the fourth connecting rod (19) is hinged to a second slider (20), the first fixed column (1) is provided with a second sliding groove (21), the second slider (20) is slidably connected to the second sliding groove (21). 2.根据权利要求1所述的一种便于伸缩收纳黑板教具，其特征在于：所述第一固定柱(1)转动连接有蜗杆(8)，所述蜗杆(8)固定连接有旋钮(9)，所述蜗杆(8)啮合有蜗轮(10)，所述蜗轮(10)固定连接有转动轴(7)，所述转动轴(7)固定连接有第一黑板(4)，所述第一黑板(4)滑动连接有第二黑板(5)，所述第二黑板(5)通过连杆转动连接于第二固定柱(6)上。2. A telescopic and storable blackboard teaching aid according to claim 1, characterized in that: the first fixed column (1) is rotatably connected to a worm (8), the worm (8) is fixedly connected to a knob (9), the worm (8) is engaged with a worm wheel (10), the worm wheel (10) is fixedly connected to a rotating shaft (7), the rotating shaft (7) is fixedly connected to the first blackboard (4), the first blackboard (4) is slidably connected to the second blackboard (5), and the second blackboard (5) is rotatably connected to the second fixed column (6) through a connecting rod. 3.根据权利要求2所述的一种便于伸缩收纳黑板教具，其特征在于：所述第一固定柱(1)固定连接有驱动电机(22)，所述驱动电机(22)的输出端固定连接有第二螺纹杆(23)，所述第二螺纹杆(23)螺纹连接有螺纹块(24)，所述螺纹块(24)固定连接有连接板(25)，所述连接板(25)铰接支撑杆(26)，所述支撑杆(26)铰接有滑动块(27)，所述第一固定柱(1)上设有第三滑槽(28)，所述第三滑槽(28)内滑动连接有滑动块(27)。3. A blackboard teaching aid that is easy to retract and store according to claim 2, characterized in that: the first fixed column (1) is fixedly connected to a driving motor (22), the output end of the driving motor (22) is fixedly connected to a second threaded rod (23), the second threaded rod (23) is threadedly connected to a threaded block (24), the threaded block (24) is fixedly connected to a connecting plate (25), the connecting plate (25) is hinged to a support rod (26), the support rod (26) is hinged to a sliding block (27), the first fixed column (1) is provided with a third sliding groove (28), and the sliding block (27) is slidably connected in the third sliding groove (28). 4.根据权利要求3所述的一种便于伸缩收纳黑板教具，其特征在于：所述第一固定柱(1)上设有第四滑槽(30)，所述第四滑槽(30)内滑动连接有第三滑块(31)，所述第三滑块(31)固定连接于螺纹块(24)上。4. A blackboard teaching aid that is easy to retract and store according to claim 3, characterized in that: a fourth sliding groove (30) is provided on the first fixed column (1), a third slider (31) is slidably connected in the fourth sliding groove (30), and the third slider (31) is fixedly connected to the threaded block (24). 5.根据权利要求4所述的一种便于伸缩收纳黑板教具，其特征在于：所述第一固定柱(1)固定连接有伸缩柱(3)，所述伸缩柱(3)固定连接于第二固定柱(6)上。5. A blackboard teaching aid that is easy to retract and store according to claim 4, characterized in that the first fixed column (1) is fixedly connected to a telescopic column (3), and the telescopic column (3) is fixedly connected to the second fixed column (6). 6.根据权利要求5所述的一种便于伸缩收纳黑板教具，其特征在于：所述第一连接杆(14)铰接有第四连接杆(19)，所述第二连接杆(15)铰接有第三连接杆(18)，所述第一固定柱(1)固定连接有万向轮(2)。6. A blackboard teaching aid that is easy to retract and store according to claim 5, characterized in that: the first connecting rod (14) is hinged to the fourth connecting rod (19), the second connecting rod (15) is hinged to the third connecting rod (18), and the first fixed column (1) is fixedly connected to the universal wheel (2). 7.根据权利要求6所述的一种便于伸缩收纳黑板教具，其特征在于：所述转动轴(7)转动连接于第一固定柱(1)上，所述支撑杆(26)对称设有两组。7. A blackboard teaching aid that is easy to retract and store according to claim 6, characterized in that the rotating shaft (7) is rotatably connected to the first fixed column (1), and the support rods (26) are symmetrically provided in two groups.
CN202422045863.2U 2024-08-22 2024-08-22 Blackboard teaching aid convenient to flexible accomodate Active CN223212150U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202422045863.2U CN223212150U (en) 2024-08-22 2024-08-22 Blackboard teaching aid convenient to flexible accomodate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202422045863.2U CN223212150U (en) 2024-08-22 2024-08-22 Blackboard teaching aid convenient to flexible accomodate

Publications (1)

Publication Number Publication Date
CN223212150U true CN223212150U (en) 2025-08-12

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CN202422045863.2U Active CN223212150U (en) 2024-08-22 2024-08-22 Blackboard teaching aid convenient to flexible accomodate

Country Status (1)

Country Link
CN (1) CN223212150U (en)

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