CN220576935U - Teaching compass - Google Patents

Abstract

The utility model discloses a teaching compass, which relates to the technical field of teaching compasses and comprises a guide shell, a threaded cylinder and a mounting plate, wherein a connecting hole is formed in the mounting plate, an adsorption pad is connected to the bottom of the mounting plate, a support column is movably connected to the inside of the connecting hole in a jogged mode, a fixing block is symmetrically connected to the top of the support column, a connecting block is connected to one side of the fixing block, and a positioning shaft is connected to the inside of the fixing block in a penetrating mode. According to the utility model, the adsorption pad, the support column and the connecting block are arranged, the adsorption pad is in adsorption connection with the blackboard, the support column is in fixed-point movable connection with the connecting hole, the support column can rotate in the connecting hole by pushing of external force, the positioning shaft movably penetrates through the connecting block, and the connecting block is connected with the bottom of the guide shell, so that the use angle of the guide shell can be conveniently adjusted according to the use requirement, the surface of the blackboard is effectively protected, and the service life of the blackboard is prolonged.

Description

Teaching compass

Technical Field

The utility model relates to the technical field of teaching compasses, in particular to a teaching compasses.

Background

The compass is a tool for drawing circles or strings in mathematics geometry and drawing, is commonly used for drawing rules and gauges, is made of metal, plastic and the like, comprises two parts which are connected, and is provided with an adjustable hinge, so that a teacher needs to draw circles or strings on a blackboard by using the compass in teaching, and the existing compass for teaching needs to be propped against the blackboard by using the needle tip of the compass and then draw circles or strings.

However, when the conventional compass is used, most of the conventional compasses have the problem that the needle tip of the compass needs to be tightly fixed on the blackboard and then the needle tip is pushed to rotate on the blackboard, so that the needle tip of the compass is very easy to wear, and the blackboard is seriously damaged, so that a plurality of small holes are punched on the blackboard, and the service life of the blackboard is influenced.

Therefore, the teaching compass solves the problems.

Disclosure of Invention

First) solving the technical problems

The utility model aims to make up the defects of the prior art and provides a teaching compass.

Two) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a teaching compass, includes direction shell, screw thread section of thick bamboo and mounting panel, the connecting hole has been seted up to the inside of mounting panel, the bottom of mounting panel is connected with the absorption pad, the inside gomphosis swing joint of connecting hole has the pillar, the top symmetry of pillar is connected with the fixed block, one side of fixed block is connected with the connecting block, and the top of connecting block is connected with the bottom of direction shell, the inside through connection of fixed block has the locating shaft, and the inside of locating shaft activity run through the connecting block.

Further, the top of direction shell is connected with a scale.

Further, the top through connection of direction shell has a screw thread section of thick bamboo, the inside through connection of screw thread section of thick bamboo has a threaded rod, and a threaded rod and screw thread section of thick bamboo mesh mutually.

Further, the inside gomphosis swing joint of direction shell has the movable rod, the top of movable rod is connected with No. two graduated scales.

Further, one end of the movable rod is connected with a mounting cylinder, and chalk is movably connected inside the mounting cylinder.

Furthermore, the inside through connection of installation section of thick bamboo has No. two threaded rods, and No. two threaded rods are connected with the installation section of thick bamboo meshing.

Furthermore, one end of the second threaded rod is connected with an extrusion pad, and the extrusion pad is movably connected with the second threaded rod at fixed points.

Third), beneficial effects:

compared with the prior art, the teaching compass has the following beneficial effects:

1. according to the utility model, the adsorption pad, the support and the connecting block are arranged, the adsorption pad is in adsorption connection with the blackboard, the support is in fixed-point movable connection with the connecting hole, the support can rotate in the connecting hole through the pushing of external force, the fixing block is symmetrically connected and installed at the top end of the support, the fixing block movably penetrates through the inside of the connecting block through the positioning shaft, and the fixing block is connected with the bottom of the guide shell through the connecting block, so that the use angle of the guide shell can be conveniently adjusted according to the use requirement, the surface of the blackboard is effectively protected, and the service life of the blackboard is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the guide shell structure of the present utility model;

FIG. 3 is a schematic view of an explosive construction of a mounting plate according to the present utility model;

FIG. 4 is a schematic view of the press pad according to the present utility model.

In the figure: 1. a guide housing; 101. a first scale; 2. a thread cylinder; 201. a first threaded rod; 3. a mounting plate; 301. a connection hole; 302. an adsorption pad; 303. a support post; 304. a fixed block; 305. a connecting block; 306. positioning a shaft; 4. a moving rod; 401. a second scale; 5. a mounting cylinder; 501. a chalk; 6. a second threaded rod; 601. and (3) extruding the pad.

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.

As shown in fig. 1 and 3, the present utility model provides a technical solution: teaching compasses;

including mounting panel 3, connecting hole 301 has been seted up to the inside of mounting panel 3, the bottom of mounting panel 3 is connected with adsorption pad 302, the inside gomphosis swing joint of connecting hole 301 has pillar 303, the top symmetry of pillar 303 is connected with fixed block 304, one side of fixed block 304 is connected with connecting block 305, and the top of connecting block 305 is connected with the bottom of direction shell 1, the inside through connection of fixed block 304 has locating shaft 306, and the inside of locating shaft 306 activity run through connecting block 305, mounting panel 3 is the ring shape, offer the space for connecting hole 301, the connecting hole 301 is used for providing gomphosis fixed point swing joint for pillar 303, adsorption pad 302 is the silica gel sticky pad, adsorb on the blackboard through the adhesion, the effect of connecting is played to pillar 303, carry out fixed point swing joint through pillar 303 and connecting hole 301, can make pillar 303 rotate in the inside of connecting hole 301 through the promotion of external force, fixed block 304 is installed on the top of pillar 303 through symmetrical connection, fixed block 304 provides spacing for connecting block 305, the inside through the movable run through connecting block 305, be connected with the bottom of direction shell 1 through connecting block 305, the use angle of direction shell 1 is convenient for use demand adjustment.

As shown in fig. 1 and 2, the present utility model provides a technical solution: teaching compasses;

including direction shell 1 and screw mandrel 2, the top of direction shell 1 is connected with a scale 101, the top through-connection of direction shell 1 has screw mandrel 2, the inside through-connection of screw mandrel 2 has a threaded rod 201, and a threaded rod 201 meshes with screw mandrel 2 mutually, direction shell 1 is one of the main integrated configuration of teaching compasses, the inside of direction shell 1 has certain space for accomodate and the direction slides to movable rod 4, a scale 101 is measuring assembly, be convenient for observe the diameter of drawing the circle through a scale 101 and No. two scales 401, the inner wall of screw mandrel 2 is the oblique screw thread form, carry out through-engagement connection through screw mandrel 2 and threaded rod 201, can extrude the location to movable rod 4 of direction shell 1 inside through rotatory threaded rod 201.

As shown in fig. 1 and fig. 4, the present utility model provides a technical solution: teaching compasses;

including movable rod 4, installation section of thick bamboo 5 and No. two threaded rods 6, the inside gomphosis swing joint of direction shell 1 has movable rod 4, the top of movable rod 4 is connected with No. two scale 401, the one end of movable rod 4 is connected with installation section of thick bamboo 5, the inside swing joint of installation section of thick bamboo 5 has chalk 501, the inside through-connection of installation section of thick bamboo 5 has No. two threaded rods 6, and No. two threaded rods 6 are connected with installation section of thick bamboo 5 meshing, no. two one end of threaded rods 6 is connected with extrusion pad 601, and extrusion pad 601 and No. two threaded rods 6 fixed point swing joint mutually, movable rod 4 installs the inside at direction shell 1 through swing joint, through drawing movable rod 4, be convenient for adjust the diameter of drawing the circle according to the user demand through direction shell 1 and movable rod 4, installation section of thick bamboo 5 is a circular cylinder for install spacingly to chalk 501, through chalk 501 and blackboard contact slip, can draw the figure, no. two threaded rods 6 are connected through running through No. two threaded rods 6 and extrusion pad 601, can make extrusion pad 601 carry out swing joint at No. two threaded rods 6 at the inside of installation section of thick bamboo 5, can make extrusion pad 601 carry out extrusion pad 601 at the inside installation section of thick bamboo 5, extrusion pad 5 is the extrusion pad is located.

Working principle: before the teaching compass uses, place the inside of installation section of thick bamboo 5 with chalk 501, through rotatory No. two threaded rods 6, make squeeze pad 601 carry out extrusion location to the inside chalk 501 of installation section of thick bamboo 5, adsorb absorption pad 302 and blackboard and be connected, carry out fixed point swing joint through pillar 303 and connecting hole 301, can make pillar 303 rotate in the inside of connecting hole 301 through the promotion of external force, the top at pillar 303 is installed through symmetrical connection to fixed block 304, pass through the inside of locating shaft 306 activity run through connecting block 305, be connected through the bottom of connecting block 305 with direction shell 1, be convenient for adjust the angle of use of direction shell 1 according to the user demand, carry out swing joint through movable rod 4 and direction shell 1, through the position of use of drawing movable rod 4 in direction shell 1 inside, can observe the diameter of drawing the circle through first scale 101 and No. two scales 401, thereby be convenient for draw the circle of different diameters according to the user demand.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "fixedly attached," "mounted," "connected," and "coupled" are to be construed broadly, e.g., as a fixed connection, as a removable connection, or as an integral connection; "coupled" may be either mechanical or electrical; the "connection" may be direct, indirect via an intermediary, or communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a teaching compass, includes direction shell (1), screw thread section of thick bamboo (2) and mounting panel (3), its characterized in that: connecting hole (301) have been seted up to the inside of mounting panel (3), the bottom of mounting panel (3) is connected with adsorption pad (302), the inside gomphosis swing joint of connecting hole (301) has pillar (303), the top symmetry of pillar (303) is connected with fixed block (304), one side of fixed block (304) is connected with connecting block (305), and the top of connecting block (305) is connected with the bottom of direction shell (1), the inside through connection of fixed block (304) has locating shaft (306), and the inside of locating shaft (306) activity run through connecting block (305).

2. A teaching compass as claimed in claim 1, wherein: the top of the guide shell (1) is connected with a first graduated scale (101).

3. A teaching compass as claimed in claim 1, wherein: the top of direction shell (1) is connected with screw thread section of thick bamboo (2) in a penetrating way, the inside of screw thread section of thick bamboo (2) is connected with threaded rod (201) in a penetrating way, and threaded rod (201) and screw thread section of thick bamboo (2) engaged with.

4. A teaching compass as claimed in claim 1, wherein: the inside gomphosis swing joint of direction shell (1) has movable rod (4), the top of movable rod (4) is connected with No. two scale (401).

5. A teaching compass according to claim 4 and characterized in that: one end of the movable rod (4) is connected with a mounting cylinder (5), and a chalk (501) is movably connected inside the mounting cylinder (5).

6. A teaching compass according to claim 5 and characterized in that: the inside of the installation cylinder (5) is connected with a second threaded rod (6) in a penetrating way, and the second threaded rod (6) is connected with the installation cylinder (5) in a meshed way.

7. A teaching compass according to claim 6 and characterized in that: one end of the second threaded rod (6) is connected with an extrusion pad (601), and the extrusion pad (601) is movably connected with the second threaded rod (6) at the corresponding point.