CN202919302U - Guide rail type sliding chalk box - Google Patents

Abstract

The utility model relates to a chalk box, in particular to a rail-type sliding chalk box. Including chalk box (1), side guide wheels (2), bottom surface guide wheels (3), rollers (4), guide rails (5), blackboard bottom frame (6), poles (7), the chalk The back of the box body (1) is connected to the side guide wheel (2) through the roller (4), and the bottom is connected to the support rod (7); the side guide wheel (2) is connected to the guide rail (5); the bottom guide wheel (3) is The surface is connected with the pole (7) through the roller (4), and the upper surface is connected with the bottom of the blackboard bottom frame (6) through the guide rail (5). The utility model is simple in structure, easy to produce, convenient to use and more reasonable.

Description

A rail-type sliding chalk box

technical field

The utility model relates to a chalk box, in particular to a rail-type sliding chalk box.

Background technique

The chalk box is the most common item in schools. It is a tool used to hold chalk, usually in the form of cuboids and cubes. The most basic function of the chalk box is to facilitate the placement of chalk, but the traditional chalk box can be placed anywhere, and it is easy to dump, easy to lose, easy to break and other disadvantages follow, so the chalk box also needs a constraint.

Utility model content

The technical problem to be solved by the utility model is to provide a rail-type sliding chalk box, which makes the chalk box more convenient and reasonable to use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a rail-type sliding chalk box, including a chalk box body, side guide wheels, bottom surface guide wheels, rollers, guide rails, blackboard bottom frame, and support rods. The back of the chalk box body is connected to the side guide wheel through the roller, and the bottom is connected to the pole; the side guide wheel is connected to the guide rail; the lower surface of the bottom guide wheel is connected to the pole through the roller, and the upper surface is connected to the bottom of the bottom frame of the blackboard through the guide rail. .

The side guide wheels and the bottom guide wheels are oblate cylindrical, and the length is the net length of the bottom frame of the blackboard.

The length of the guide rail is the net length of the blackboard bottom frame, and the inner diameter is 2 millimeters larger than the diameter of the side guide wheel and the bottom surface guide wheel. The beneficial effects of the utility model:

(1) The utility model has a simple structure and is easy to produce;

(2) Easy to use and more reasonable.

Description of drawings

Fig. 1 is a schematic view of the side structure of the utility model

Among them, 1-chalk box; 2-side guide wheel; 3-bottom guide wheel; 4-roller; 5-guide rail; 6-blackboard bottom frame; 7-support rod.

Fig. 2 is a plan view of the utility model

Wherein 1-chalk box; 2-side guide wheel; 3-bottom guide wheel; 4-roller; 7-strut.

Detailed ways

The utility model will be described in further detail below with reference to the accompanying drawings and in conjunction with the embodiments.

A rail-type sliding chalk box, comprising a chalk box body 1, side guide wheels 2, bottom surface guide wheels 3, rollers 4, guide rails 5, blackboard bottom frame 6, and poles 7, and the back of the chalk box body 1 passes through rollers The shaft 4 is connected with the side guide wheel 2, the bottom is connected with the pole 7; the side guide wheel 2 is connected with the guide rail 5; the lower surface of the bottom guide wheel 3 is connected with the pole 7 through the roller 4, and the upper surface is connected with the bottom frame of the blackboard through the guide rail 5 6 Bottom connection.

The side guide wheels 2 and the bottom guide wheels 3 are oblate cylindrical, and the length is the net length of the bottom frame 6 of the blackboard.

Described guide rail 5 lengths are the clear length of blackboard bottom frame 6, and internal diameter is 2 millimeters larger than side guide wheel 2, bottom surface guide wheel 3 diameters.

Claims (3)

1. guide tracked slip chalk holder, comprise chalk box body (1), side guide wheel (2), bottom surface guide wheel (3), roller bearing (4), guide rail (5), blackboard underframe (6), pole (7), it is characterized in that: described chalk box body (1) back side is connected with side guide wheel (2) by roller bearing (4), and the bottom is connected with pole (7); Side guide wheel (2) is connected with guide rail (5); Bottom surface guide wheel (3) lower surface is connected with pole (7) by roller bearing (4), and upper surface is connected bottom blackboard underframe (6) by guide rail (5).

2. guide tracked slip chalk holder according to claim 1 is characterized in that: described side guide wheel (2), bottom surface guide wheel (3) are oblate cylindricality, and length is the clean length of blackboard underframe (6).

3. guide tracked slip chalk holder according to claim 1, it is characterized in that: described guide rail (5) length is the clean length of blackboard underframe (6), internal diameter is than large 2 millimeters of side guide wheel (2), bottom surface guide wheel (3) diameter.

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