The utility model relates to the technical field of writing board, in particular to a writing board for senior high school students, which comprises a writing board body. The lower ends of the writing board body are provided with supporting rods, and the lower ends of the supporting rods are provided with sleeves, and the supporting rods are inserted into the sleeves. A sliding mechanism is arranged on one side of the lower end of the supporting rods, and racks are arranged on the other side of the supporting rods, and the sleeves are close to each other. A cavity is arranged on the inner wall of one side of the rack, and a gear meshing with the rack is arranged in the cavity. A connecting column is fixed on one side of the gear. The connecting column runs through one side of the sleeve and extends out of the sleeve. The outer side of the connecting column is provided with a bearing, the inner ring of the bearing is fixedly connected with the gear, the outer ring of the bearing is fixedly connected with the inner wall of the sleeve, and the connecting column is fixedly connected with the inner wall of the sleeve. The other end is connected with a knob, which is provided with a locking mechanism. The utility model has the characteristics of fast lifting and adjusting height and simple operation.
【技术实现步骤摘要】
一种高中生书写用写字板
本技术涉及写字板
,尤其涉及一种高中生书写用写字板。
技术介绍
写字板用于满足人们在不同的工作环境中,进行学习、工作的需要,比普通的办工作具有优越性,现有的写字板不能根据使用者,进行写字板高度的调节,长期使用,容易对使用者的视力和颈椎造成影响。
技术实现思路
本技术的目的是为了解决现有技术中存在不能调节高度的缺点,而提出的一种高中生书写用写字板。为了实现上述目的,本技术采用了如下技术方案:设计一种高中生书写用写字板,包括写字板本体,所述写字板本体下侧两端均设有支撑杆,所述支撑杆下端设有套筒,且支撑杆插接在套筒内,所述支撑杆下端一侧设有滑动机构,所述支撑杆下端另一侧设有齿条,所述套筒靠近齿条一侧的内壁上开设有空腔,所述空腔内设有与齿条相啮合的齿轮,所述齿轮一侧固定连接有连接柱,所述连接柱贯穿套筒的一侧,并连接柱延伸出套筒,所述连接柱外侧设有轴承,所述轴承内圈与齿轮固定连接,所述轴承外圈与套筒内壁固定连接,所述连接柱另一端连接有旋钮,所述旋钮上设有锁紧机构。优选的,所述锁紧机构包括在旋钮四周等距离开设有多个卡槽,所述旋钮上方设有与套筒固定连接的支 ...
【技术保护点】
1.一种高中生书写用写字板,包括写字板本体(1),其特征在于,所述写字板本体(1)下侧两端均设有支撑杆(2),所述支撑杆(2)下端设有套筒(3),且支撑杆(2)插接在套筒(3)内,所述支撑杆(2)下端一侧设有滑动机构,所述支撑杆(2)下端另一侧设有齿条(16),所述套筒(3)靠近齿条(16)一侧的内壁上开设有空腔(19),所述空腔(19)内设有与齿条(16)相啮合的齿轮(17),所述齿轮(17)一侧固定连接有连接柱(18),所述连接柱(18)贯穿套筒(3)的一侧,并连接柱(18)延伸出套筒(3),所述连接柱(18)外侧设有轴承(20),所述轴承(20)内圈与齿轮(17)固定 ...
【技术特征摘要】
1.一种高中生书写用写字板,包括写字板本体(1),其特征在于,所述写字板本体(1)下侧两端均设有支撑杆(2),所述支撑杆(2)下端设有套筒(3),且支撑杆(2)插接在套筒(3)内,所述支撑杆(2)下端一侧设有滑动机构,所述支撑杆(2)下端另一侧设有齿条(16),所述套筒(3)靠近齿条(16)一侧的内壁上开设有空腔(19),所述空腔(19)内设有与齿条(16)相啮合的齿轮(17),所述齿轮(17)一侧固定连接有连接柱(18),所述连接柱(18)贯穿套筒(3)的一侧,并连接柱(18)延伸出套筒(3),所述连接柱(18)外侧设有轴承(20),所述轴承(20)内圈与齿轮(17)固定连接,所述轴承(20)外圈与套筒(3)内壁固定连接,所述连接柱(18)另一端连接有旋钮(13),所述旋钮(13)上设有锁紧机构。2.根据权利要求1所述的一种高中生书写用写字板,其特征在于,所述锁紧机构包括在旋钮(13)四周...
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