CN220796088U

CN220796088U - Teaching stick

Info

Publication number: CN220796088U
Application number: CN202322373931.3U
Authority: CN
Inventors: 聂欢
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-04-16
Anticipated expiration: 2033-09-01

Abstract

The utility model relates to a teaching rod, which comprises a bottom pipe, a first adjusting pipe and a second adjusting pipe, wherein the first adjusting pipe is arranged in the bottom pipe in a sliding manner, and the second adjusting pipe is arranged in the first adjusting pipe in a sliding manner; the inner walls of the bottom pipe and the first adjusting pipe are symmetrically provided with a first annular groove and a second annular groove, and the first annular groove is positioned below the second annular groove; the telescopic structure formed by the bottom tube, the first adjusting tube and the second adjusting tube can facilitate the length adjustment of a teacher according to the needs, can be conveniently contracted and carried, does not occupy a large space, and can position the first adjusting tube and the second adjusting tube when being pulled out through the arrangement of the positioning assembly and avoid the first adjusting tube and the second adjusting tube from being pulled out and disjointed through the arrangement of the anti-falling assembly.

Description

Teaching stick

Technical Field

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

Background

The teaching stick is a rod-shaped material for indicating a blackboard writing and a picture when a teacher speaks.

To further understand the teaching sticks of the prior art, the bulletin number is: the Chinese patent of CN202331889U discloses a teaching stick for teaching, in particular to a multipurpose teaching stick capable of indicating and marking. The chalk comprises a teaching rod and a chalk, wherein the object point of the chalk is that the upper end of the teaching rod is fixedly connected with a pen cap, and an inner hole matched with the outer diameter of the chalk is arranged on the pen cap. A pen cap is fixedly connected above the teaching rod, an inner hole is formed in the upper surface of the pen cap, the size of the inner hole is matched with the outer diameter of the chalk, a device for sleeving the chalk is arranged at the top of the teaching rod, the teaching rod can be fully utilized before a blackboard in a classroom, and students have a more profound impression on the key points in teaching contents.

Although the teaching stick in this patent can carry out the centre gripping to the chalk, then the teaching stick length in this patent is fixed, can not carry out length adjustment, to carrying the teacher of many teaching books or laboratory glassware when the teaching, can not carry conveniently.

Disclosure of Invention

Aiming at the technical problem of fixed length of the teaching rod in the prior patent, the utility model provides the teaching rod.

The technical scheme adopted by the utility model is as follows: the teaching stick comprises a bottom pipe, a first adjusting pipe and a second adjusting pipe, wherein the first adjusting pipe is arranged in the bottom pipe in a sliding manner, and the second adjusting pipe is arranged in the first adjusting pipe in a sliding manner; the inner walls of the bottom pipe and the first adjusting pipe are symmetrically provided with a first annular groove and a second annular groove, and the first annular groove is positioned below the second annular groove; the outside of first regulation pipe and second regulation pipe all is equipped with locating component, be equipped with the anticreep subassembly that prevents that bottom pipe, first regulation pipe and second regulation pipe from breaking away from each other in the locating component.

Further, the outer wall of first regulation pipe and second regulation pipe all is equipped with multiunit mounting groove, locating component is including sliding the slide bar that sets up in the mounting groove, rotate the ball of connecting in slide bar one end and set up the spring between slide bar and mounting groove, fixedly connected with guide ring in the mounting groove, the slide bar runs through the guide ring.

Further, the upper side and the lower side of the second annular groove are respectively provided with a first arc-shaped inclined plane and a second arc-shaped inclined plane.

Further, the anti-falling component is an elastic inclined plate fixedly connected to the outer portion of the sliding rod, an accommodating groove is formed in the position, corresponding to the outer portion of the sliding rod, of the elastic inclined plate, and a limiting groove is formed in the first arc-shaped inclined surface.

Further, the two outer side edges of the first annular groove are respectively provided with a third arc-shaped inclined plane.

Further, the inner wall of the bottom tube is fixedly connected with a first magnet.

Further, the inner wall fixedly connected with second magnet of first regulation pipe, the bottom of first regulation pipe and second regulation pipe is all fixedly connected with iron sheet.

Further, the outside fixed cover of bottom tube is equipped with the sheath, just the bottom threaded connection of bottom tube has the plunger, fixedly connected with laser emitter on the plunger.

Further, the inner wall of the second adjusting pipe is fixedly connected with a plurality of groups of arc-shaped sheets.

The beneficial effects of the utility model are as follows: compared with the prior art, the telescopic structure formed by the bottom pipe, the first adjusting pipe and the second adjusting pipe can facilitate a teacher to adjust the length according to needs, and can also be conveniently contracted and carried without occupying a large space, and meanwhile, the position of the first adjusting pipe and the second adjusting pipe can be positioned when being pulled out through the arrangement of the positioning component, and the first adjusting pipe and the second adjusting pipe are prevented from being pulled out by the arrangement of the anti-falling component.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the structure of an arcuate tab in a second regulator tube in accordance with the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic cross-sectional view of a midsole tube of the present utility model;

FIG. 5 is a schematic cross-sectional view of a first regulator tube according to the present utility model;

FIG. 6 is a schematic view of the structure of the plunger of the present utility model;

FIG. 7 is a schematic cross-sectional view of a midsole tube and a first regulator tube of the present utility model;

FIG. 8 is an enlarged schematic view of area A of FIG. 7;

FIG. 9 is an enlarged schematic view of the area B in FIG. 8;

FIG. 10 is a schematic view showing the internal structure of a second annular groove in a first regulating tube according to the present utility model

FIG. 11 is an enlarged schematic view of the area C in FIG. 10;

FIG. 12 is a schematic view of the structure of a first regulator tube according to the present utility model;

fig. 13 is an enlarged schematic view of the area D in fig. 12.

Marked in the figure as: 1. a bottom tube; 2. a sheath; 3. a plunger; 4. a first regulating tube; 5. a second regulating tube; 6. an arc-shaped sheet; 7. a first magnet; 8. a laser emitter; 9. a second magnet; 10. a first annular groove; 11. a second annular groove; 12. a first arcuate ramp; 13. a limit groove; 14. a spring; 15. a slide bar; 16. a ball; 17. a second arcuate ramp; 18. a third arcuate ramp; 19. a receiving groove; 20. a mounting groove; 21. a guide ring; 22. an elastic sloping plate.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be 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.

The utility model will be further described with reference to fig. 1-13.

In order to solve the problems in the background technology, the application provides the following technical scheme: a teaching stick.

In a specific technical scheme, the telescopic structure comprises a bottom pipe 1, a first regulating pipe 4 and a second regulating pipe 5, wherein the bottom pipe 1, the first regulating pipe 4 and the second regulating pipe 5 form a telescopic structure.

Wherein, still be equipped with sheath 2 at the outside fixed cover of end pipe 1, and the bottom threaded connection of end pipe 1 has plunger 3, fixedly connected with laser emitter 8 on the plunger 3 for the transmission laser makes things convenient for the teacher to instruct the higher position of blackboard, still at the 5 inner wall fixedly connected with multiunit arc piece 6 of second governing pipe, arc piece 6 is the stretch-forming, with the centre gripping chalk, conveniently write at the teaching stick shrink back, centre gripping chalk.

The specific design is as follows, the first adjusting tube 4 is arranged in the bottom tube 1 in a sliding way, and the second adjusting tube 5 is arranged in the first adjusting tube 4 in a sliding way.

Wherein, the inner walls of the bottom pipe 1 and the first adjusting pipe 4 are symmetrically provided with a first annular groove 10 and a second annular groove 11, and the first annular groove 10 is positioned below the second annular groove 11.

Wherein, the outer parts of the first adjusting pipe 4 and the second adjusting pipe 5 are respectively provided with a positioning component;

the specific design is as follows:

the outer wall of first regulation pipe 4 and second regulation pipe 5 all is equipped with multiunit mounting groove 20, positioning assembly is including sliding slide bar 15 that sets up in mounting groove 20, rotate the ball 16 of connecting in slide bar 15 one end and set up the spring 14 between slide bar 15 and mounting groove 20, fixedly connected with guide ring 21 in the mounting groove 20, slide bar 15 runs through guide ring 21, in order to conveniently slide, so be equipped with first arc inclined plane 12 and second arc inclined plane 17 respectively with the upper and lower both sides of second ring channel 11, under the elasticity effect of spring 14, can let ball 16 fix a position in first ring channel 10 or second ring channel 11 firmly.

For easy sliding, a third arc-shaped inclined surface 18 is provided at both outer edges of the first annular groove 10.

In order to avoid the occurrence of a disconnection caused when pulled with force, a disconnection preventing assembly for preventing the bottom tube 1, the first regulating tube 4 and the second regulating tube 5 from being disconnected from each other is provided in the positioning assembly.

In particular, the method comprises the steps of,

the anticreep subassembly is fixed connection at the outside elasticity swash plate 22 of slide bar 15, and elasticity swash plate 22 is made for elastic steel or plastics, for buckling structure, and is equipped with holding tank 19 in the outside elasticity swash plate 22's that corresponds of slide bar 15 position, and holding tank 19 is used for holding elasticity swash plate 22, and is equipped with spacing recess 13 on the first arc inclined plane 12 for contradict to block elasticity swash plate 22, realize the anticreep, explain as follows: the first adjusting tube 4 is pulled out until the balls 16 outside the first adjusting tube 4 are clamped and abutted in the second annular groove 11 in the inner wall of the bottom tube 1, and then the elastic inclined plate 22 is clamped and abutted in the limit groove 13 on the first arc inclined surface 12, so that the first adjusting tube 4 can not be pulled out.

In order to increase the stability when accomodating first regulation pipe 4 and second regulation pipe 5, so at the inner wall fixedly connected with first magnet 7 of bottom tube 1, and at the inner wall fixedly connected with second magnet 9 of first regulation pipe 4, the equal fixedly connected with iron sheet of bottom of first regulation pipe 4 and second regulation pipe 5 for adsorb fixedly with first magnet 7 and second magnet 9, when first regulation pipe 4 and second regulation pipe 5 all shrink, so through the adsorption fixation of iron sheet, first magnet 7, second magnet 9, can increase the stability after the shrink.

The present utility model is summarized as follows for a full understanding of the technical solution by those skilled in the art:

when the device is used, a teacher can hold the bottom pipe 1 by hand and then adjust the first adjusting pipe 4 and the second adjusting pipe 5 according to the required length;

specifically, the first adjusting tube 4 is pulled out until the balls 16 outside the first adjusting tube 4 are pressed against the second annular groove 11 in the inner wall of the bottom tube 1 by the elastic force of the spring 14, and at this time, referring to fig. 9, the elastic sloping plate 22 is pressed against the limit groove 13 on the first arc sloping surface 12 by a pressing manner, so that the first adjusting tube 4 can not be pulled out.

Similarly, the drawing principle of the second adjusting tube 5 in the first adjusting tube 4 is consistent with the principle, so that the corresponding length of the teaching rod can be adjusted according to the requirement.

When the forceps are retracted, the first adjusting tube 4 or the second adjusting tube 5 is only pressed with force, so that the balls 16 outside the first adjusting tube 4 slide out of the second annular groove 11 on the forceps arm of the bottom tube 1 until the balls are buckled in the first annular groove 10 on the inner wall of the bottom tube 1.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be obvious to those skilled in the art that the scope of the present utility model is defined by the appended claims and equivalents thereof.

Claims

1. A teaching stick, which is characterized by comprising

A bottom tube (1);

a first adjusting pipe (4), wherein the first adjusting pipe (4) is arranged in the bottom pipe (1) in a sliding way;

a second adjusting pipe (5), wherein the second adjusting pipe (5) is arranged in the first adjusting pipe (4) in a sliding way;

the inner walls of the bottom pipe (1) and the first adjusting pipe (4) are symmetrically provided with a first annular groove (10) and a second annular groove (11), and the first annular groove (10) is positioned below the second annular groove (11); the outside of first regulation pipe (4) and second regulation pipe (5) all is equipped with locating component, be equipped with the anticreep subassembly that prevents bottom tube (1), first regulation pipe (4) and second regulation pipe (5) break away from each other in the locating component.

2. The teaching stick according to claim 1, characterized in that the outer walls of the first adjusting pipe (4) and the second adjusting pipe (5) are respectively provided with a plurality of groups of mounting grooves (20), the positioning assembly comprises a sliding rod (15) arranged in the mounting grooves (20) in a sliding manner, a ball (16) rotatably connected to one end of the sliding rod (15) and a spring (14) arranged between the sliding rod (15) and the mounting grooves (20), a guide ring (21) is fixedly connected in the mounting grooves (20), and the sliding rod (15) penetrates through the guide ring (21).

3. A teaching stick according to claim 2, characterized in that the upper and lower sides of the second annular groove (11) are respectively provided with a first arc-shaped inclined surface (12) and a second arc-shaped inclined surface (17).

4. A teaching stick according to claim 3 and characterized in that the anti-drop component is an elastic sloping plate (22) fixedly connected to the outside of the sliding rod (15), a containing groove (19) is arranged at the position of the elastic sloping plate (22) corresponding to the outside of the sliding rod (15), and a limit groove (13) is arranged on the first arc-shaped sloping surface (12).

5. A teaching stick according to claim 4, characterized in that both outer edges of the first annular groove (10) are provided with third arcuate inclined surfaces (18).

6. A teaching stick according to claim 5, characterized in that the inner wall of the bottom tube (1) is fixedly connected with a first magnet (7).

7. The teaching stick according to claim 6, characterized in that the inner wall of the first adjusting tube (4) is fixedly connected with a second magnet (9), and the bottom ends of the first adjusting tube (4) and the second adjusting tube (5) are fixedly connected with iron sheets.

8. The teaching stick according to claim 7, characterized in that the outer fixing sleeve of the bottom tube (1) is provided with a sheath (2), the bottom of the bottom tube (1) is connected with a plunger (3) in a threaded manner, and the plunger (3) is fixedly connected with a laser emitter (8).

9. The teaching stick according to claim 8, characterized in that the inner wall of the second adjusting tube (5) is fixedly connected with a plurality of groups of arc-shaped sheets (6).