无尘板擦Dust-free eraser
技术领域 本实用新型涉及一种黑板清洁工具，尤其是一种在使用时可避免粉尘污染的新式无尘板擦。Technical field The utility model relates to a blackboard cleaning tool, especially a new dust-free blackboard eraser which can avoid dust pollution during use.
技术背景 目前，黑板擦是学校内最重要的清洁工具之一。虽然黑板擦已经被人们广泛使用和认可，但是黑板擦自身所存在的问题仍没有得到解决，特别是在防尘问题上，现在没有一种黑板擦能够彻底避免粉尘污染，而由于粉尘污染造成的哮喘、咽喉炎等疾病更是多发于教师群体之中。为了彻底解决上述问题，保护教师和学生们的身体健康，有效避免粉尘污染，我们提供了一种新式卫生的无尘黑板擦。Technical background At present, blackboard eraser is one of the most important cleaning tools in schools. Although the blackboard eraser has been widely used and approved by people, the problems of the blackboard eraser itself have not been solved, especially on the dust-proof problem. Now there is no blackboard eraser that can completely avoid dust pollution, and the dust caused by dust pollution Diseases such as asthma and pharyngitis are more common among teachers. In order to completely solve the above problems, protect the health of teachers and students, and effectively avoid dust pollution, we provide a new type of hygienic dust-free blackboard eraser.
发明内容 本实用新型的目的是提供一种无尘板擦，用于解决普通黑板擦无法降低粉尘危害的问题。SUMMARY OF THE INVENTION The purpose of this utility model is to provide a dust-free blackboard eraser, which is used to solve the problem that ordinary blackboard erasers cannot reduce dust hazards.
为达到上述目的，本实用新型无尘板擦，包括一块空体板材，在板材正面纵向粘贴多条清洁布，且保证每条清洁布之间存有缝隙；在多条清洁布的根部下方横向开设一个开口，在开口下底边设有一个挡板，且挡板的高度高于清洁布高度，挡板与板材表面成锐角；在板材的背面开设活动门；沿板材四周固定一圈弹性防护罩，防护罩为开放式结构，且正常伸展高度高于挡板高度；挡板顶端由软性具有弹力的材料制成。In order to achieve the above-mentioned purpose, the dust-free board eraser of the present utility model comprises a hollow plate, and a plurality of cleaning cloths are pasted longitudinally on the front of the plate, and there is a gap between each cleaning cloth; An opening with a baffle at the lower bottom of the opening, and the height of the baffle is higher than the height of the cleaning cloth, and the baffle forms an acute angle with the surface of the board; a movable door is set on the back of the board; an elastic protective cover is fixed around the board , the protective cover is an open structure, and the normal extension height is higher than the height of the baffle; the top of the baffle is made of soft and elastic material.
采用上述结构后，使用者在擦拭黑板的过程中，粉笔灰只能在防护罩内部漂动，稳定后会顺着清洁布之间的缝隙进入开口内，最终存留在空体板材内部，使用者可通过活动门对板材进行清理。After adopting the above structure, when the user is wiping the blackboard, the chalk dust can only float inside the protective cover, and after being stable, it will enter the opening along the gap between the cleaning cloths and finally remain inside the hollow board. The plates can be cleaned through the movable door.
本实用新型的优点是：结构合理、方便实用、卫生高效、美观大方、造价低廉、工艺简单，还能在擦拭黑板时避免粉尘飞舞，有效保护了师生们的身体健康。The utility model has the advantages of reasonable structure, convenient and practical, hygienic and efficient, elegant appearance, low cost, simple process, and can avoid flying dust when wiping the blackboard, effectively protecting the health of teachers and students.
附图说明 图1为本实用新型无尘板擦的俯视图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a top view of the utility model dust-free eraser.
具体实施方式 如图1所示，本实用新型无尘板擦，包括一块空体板材1，在板材1正面纵向粘贴多条清洁布2，且保证每条清洁布2之间存有缝隙；在多条清洁布2的根部下方横向开设一个开口3，在开口3下底边设有一个挡板4，且挡板4的高度高于清洁布2高度，挡板4与板材1表面成锐角；在板材1的背面开设活动门5；沿板材1四周固定一圈弹性防护罩6，防护罩6为开放式结构，且正常伸展高度高于挡板4高度；挡板4顶端由软性具有弹力的材料制成。其中，板材1为木板制作而成，在木板表面用强力胶水粘贴固定三条清洁布2，每两条清洁布2之间的缝隙为1厘米，清洁布2为平行设置；在清洁布2底端一侧开设开口3，开口3作为收集粉尘的通道。当擦拭黑板时，使用者把板材1的正面放置在黑板表面，弹性防护罩6与黑板全面接触，使用者需要向下压才能使得清洁布2与黑板接触，当清洁布于黑板接触时，挡板4的顶端也与黑板接触，并发生弹性形变，此时移动黑板擦，清洁布2对粉笔字迹进行擦拭，擦落的粉笔灰只能在防护罩6内部飘动，并顺着清洁布2之间的缝隙而掉落在挡板4表面，最终从开口3掉落入空体板材1内部，此过程为封闭式操作，粉笔不会外扬，从而有效降低了的粉尘污染；当空体板材1内部所集灰尘过多时，使用者还可打开板材1背面的活动门5进行清理，延长使用寿命。DETAILED DESCRIPTION As shown in Figure 1, the dust-free board eraser of the present utility model comprises a hollow plate 1, and a plurality of cleaning cloths 2 are pasted vertically on the front of the plate 1, and there is a gap between each cleaning cloth 2; An opening 3 is horizontally opened below the root of the strip cleaning cloth 2, and a baffle plate 4 is arranged on the bottom edge of the opening 3, and the height of the baffle plate 4 is higher than the height of the cleaning cloth 2, and the baffle plate 4 forms an acute angle with the surface of the plate 1; A dodge door 5 is provided on the back side of the plate 1; an elastic protective cover 6 is fixed around the plate 1, the protective cover 6 is an open structure, and the normal extension height is higher than the height of the baffle 4; the top of the baffle 4 is made of soft elastic material. Wherein, the plate 1 is made of a wooden board, and three cleaning cloths 2 are pasted and fixed on the surface of the wooden board with strong glue. The gap between every two cleaning cloths 2 is 1 cm, and the cleaning cloths 2 are arranged in parallel; at the bottom of the cleaning cloth 2 An opening 3 is provided on one side, and the opening 3 is used as a passage for collecting dust. When wiping the blackboard, the user places the front of the board 1 on the surface of the blackboard, and the elastic protective cover 6 is in full contact with the blackboard. The user needs to press down to make the cleaning cloth 2 contact with the blackboard. When the cleaning cloth contacts the blackboard, the blocking The top of the board 4 is also in contact with the blackboard, and elastically deforms. At this time, the blackboard eraser is moved, and the cleaning cloth 2 wipes the chalk writing. It falls on the surface of the baffle plate 4 through the gap between them, and finally falls into the interior of the hollow plate 1 from the opening 3. This process is a closed operation, and the chalk will not be lifted, thereby effectively reducing the dust pollution; when the hollow plate 1 When the collected dust is too much, the user can also open the dodge door 5 on the back side of the plate 1 to clean it up, prolonging the service life.