CN214822205U - External hanging type multi-line drawing tool - Google Patents

Abstract

An externally-hung multi-line drawing tool comprises an externally-connected slideway, wherein a fixed stop card is arranged at the end of the externally-connected slideway, and a sliding block is arranged on the externally-connected slideway in a sliding manner; a first movable arm is arranged on the sliding block, and a second movable arm is arranged on the first movable arm in a sliding manner; the chalk clamp is fixedly arranged at the end of the second movable arm and comprises a clamp head support, the clamp head support is fixedly connected with the end of the second movable arm, chalk clamp heads are arranged on the front end face of the clamp head support in an array mode, the inner diameter of each chalk clamp head is gradually changed, and the end of each chalk clamp head is in a sleeve pipe form with an elastic closing-in mode. The utility model discloses simple structure, convenient to use, low in cost and easy to maintain have solved all sorts of problems that blackboard writing figure exists among the prior art through simple structure, have realized that efficient multilinear blackboard writing figure is drawn, very big improvement mr's work efficiency.

Description

External hanging type multi-line drawing tool

Technical Field

The utility model relates to a general teaching aid field of machine especially relates to an outer hanging multi-line drawing instrument.

Background

Writing and drawing on a blackboard are difficult problems faced by teachers in various departments. Especially, the staff in music teaching, the English four-line grid and various geometric figures in mathematics teaching have long temporary use time in drawing, and currently, corresponding solutions or tool supports are not available. Moreover, since the marking tools prepared by teachers in different departments need to be carried respectively, great inconvenience is brought to teaching work, and the purchasing cost of the teaching aid is correspondingly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art weak point, provide a simple structure, safe and reliable, convenient to use's an outer hanging many lines instrument of drawing.

The equipment comprises an external slideway, wherein the end of the external slideway is provided with a fixed baffle card, and the fixed baffle card is used for fixing the external slideway on the side edge of the blackboard;

a sliding block is arranged on the external slideway in a sliding manner;

a first movable arm is arranged on the sliding block, and a second movable arm is arranged on the first movable arm in a sliding manner;

the chalk clamp is fixedly arranged at the end of the second movable arm and comprises a clamp head support, the clamp head support is fixedly connected with the end of the second movable arm, chalk clamp heads are arranged on the front end face of the clamp head support in an array mode, the inner diameter of each chalk clamp head is gradually changed, and the end of each chalk clamp head is in a sleeve pipe form with an elastic closing-in mode.

Further, the fixed blocking card can be arranged in the following form: the external slide both ends head is equipped with splint respectively, wear to be equipped with the bolt on the splint, fix whole equipment at the blackboard side through the hard spacing of bolt.

Furthermore, a fixed handle is arranged on the sliding block, the fixed handle penetrates through the outer wall surface of the sliding block through a bolt, and the bolt is controlled to feed and return by screwing the handle, so that the sliding block is integrally limited on the external connection slide way.

Further, the first boom is in the form of a sleeve;

the end position of the first movable arm is provided with a sliding block, the second movable arm is provided with a sliding groove, and the second movable arm is in sliding connection with the first movable arm through the sliding block on the first movable arm and can rotate by taking the sliding block as a circle center.

Furthermore, a holding handle is arranged on the chuck support;

the chalk chucks are at least five and hinged with the chuck support through hinges.

The utility model has the advantages that: the utility model discloses simple structure, convenient to use, low in cost and easy to maintain have solved all sorts of problems that blackboard writing figure exists among the prior art through simple structure, have realized that efficient multilinear blackboard writing figure is drawn, very big improvement mr's work efficiency.

Drawings

Fig. 1 is a schematic structural view of an externally-hung multi-line drawing tool according to the present invention;

reference numerals:

1-fixed stop 2-external slideway 3-fixed handle 4-slider 5-first movable arm 6-second movable arm 7-chuck support 8-holding handle 9-chalk chuck 10-hinge

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1, the externally-hung multi-line drawing tool of the present invention comprises an external slide 2, wherein a fixed stopper 1 is disposed at an end of the external slide 2, and the fixed stopper 1 is used for fixing the external slide 2 on a side edge of a blackboard;

a sliding block 4 is arranged on the external slideway 2 in a sliding manner;

a first movable arm 5 is arranged on the sliding block 4, and a second movable arm 6 is arranged on the first movable arm 5 in a sliding manner;

the chalk clamp is fixedly arranged at the end of the second movable arm 6 and comprises a clamp head support 7, the clamp head support 7 is fixedly connected with the end of the second movable arm 6, chalk clamp heads 9 are arranged on the front end face array of the clamp head support 7, the inner diameter of each chalk clamp head 9 is gradually changed, and the end of each chalk clamp head is in a sleeve pipe form with an elastic closing-in mode.

Further, the arrangement form of the fixed baffle card 1 can adopt the following form: the 2 both ends heads of external slide divide and are equipped with splint, wear to be equipped with the bolt on the splint, fix whole equipment at the blackboard side through the hard spacing of bolt.

Further, be equipped with fixed handle 3 on the slider 4, fixed handle 3 wears to locate the outer wall face of slider 4 through the bolt, moves handle control bolt through twisting and feeds and roll back, makes slider 4 wholly spacing on external slide 2.

Namely, under the condition that the sliding block 4 is limited, the stability of the scribing foundation is ensured.

Further, the first boom 5 is in the form of a sleeve;

the end position of the first movable arm 5 is provided with a sliding block 4, the second movable arm 6 is provided with a sliding groove, and the second movable arm 6 is in sliding connection with the first movable arm 5 through the sliding block 4 on the first movable arm 5 and can rotate by taking the sliding block 4 as a circle center.

The arrangement is to draw lines, and the equipment can be used as a ruler or a compass to draw figures at corresponding positions on a blackboard.

Furthermore, a holding handle 8 is arranged on the chuck support 7;

at least five chalk chucks 9 are arranged, and the chalk chucks 9 are hinged with the chuck support 7 through hinges 10.

The purpose of this kind of arrangement is in order to deal with different marking requirements, whether different chalk clip heads 9 fall on the blackboard during marking is controlled through the hinge 10.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides an outer hanging many lines instrument of drawing, includes external slide, external slide end is equipped with fixed fender card, its characterized in that: a sliding block is arranged on the external slideway in a sliding manner;

a first movable arm is arranged on the sliding block, and a second movable arm is arranged on the first movable arm in a sliding manner;

the chalk clamp is fixedly arranged at the end of the second movable arm and comprises a clamp head support, the clamp head support is fixedly connected with the end of the second movable arm, chalk clamp heads are arranged on the front end face of the clamp head support in an array mode, the inner diameter of each chalk clamp head is gradually changed, and the end of each chalk clamp head is in a sleeve pipe form with an elastic closing-in mode.

2. An externally-hung multi-line drawing tool as claimed in claim 1, wherein the fixed stop arrangement can be as follows: the external slide both ends head is equipped with splint respectively, wear to be equipped with the bolt on the splint.

3. The externally-hung multi-line drawing tool as claimed in claim 1, wherein the sliding block is provided with a fixed handle, and the fixed handle is arranged on the outer wall surface of the sliding block in a penetrating manner through a bolt.

4. An externally-hung multi-line drawing tool as claimed in claim 1, wherein the first movable arm is in the form of a sleeve;

the end position of the first movable arm is provided with a sliding block, the second movable arm is provided with a sliding groove, and the second movable arm is in sliding connection with the first movable arm through the sliding block on the first movable arm and can rotate by taking the sliding block as a circle center.

5. An externally-hung multi-line drawing tool as claimed in claim 1, wherein the chuck support is provided with a gripping handle;

the chalk chucks are at least five and hinged with the chuck support through hinges.

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