CN214312212U

CN214312212U - Teaching board with adjustable angle

Info

Publication number: CN214312212U
Application number: CN202022884471.7U
Authority: CN
Inventors: 王晓宇; 徐瑞阳
Original assignee: Shandong Polytechnic College
Current assignee: Shandong Polytechnic College
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-28
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses an angularly adjustable teaching board, include: the base is provided with rollers; the bracket is arranged on the base, can vertically move relative to the base and is provided with a pivot hole; the teaching board is provided with a pivot shaft, the pivot shaft is in pivot fit with the pivot hole, one end of the pivot shaft is fixedly connected with a gear, and the gear is provided with a plurality of tooth grooves which are arranged at intervals along the circumferential direction of the gear; the fixture block is positioned below the gear and can be installed on the bracket in a vertically sliding mode, a spring is arranged on the fixture block, the spring drives the fixture block to slide upwards to enable the fixture block to be clamped into any tooth groove to fix the gear, and a shifting lever is arranged on the fixture block. The height and angle adjustment of the teaching board can be realized, the adjustment process is simple, and the use is convenient.

Description

Teaching board with adjustable angle

Technical Field

The utility model belongs to the technical field of the teaching articles for use and specifically relates to a teaching board of angularly adjustable is related to.

Background

At present, no matter teaching activities in education training or school, a traditional teaching mode is still generally adopted, namely, a teacher giving lessons gives lessons on a platform, and main contents of the lessons are written on a blackboard by chalk, so that the blackboard eraser is necessary to wipe the blackboard, but in the process of wiping the blackboard, chalk dust flies, once the chalk dust is sucked into a body, the health of students and the teacher is slightly damaged, meanwhile, the chalk dust has no adjustability, the function is single, the use performance is poor, the chalk dust cannot be better used for teaching, and a translation teaching display board is needed; the prior teaching display board generally adopts a support frame and a drawing board to be combined and then teaching is carried out on the drawing board; the angle and the height of the present teaching display board are inconvenient to adjust, the use performance is poor, the teaching display board cannot be better used in teaching, and the improvement is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the first objective of the present invention is to provide an angle-adjustable teaching board.

The technical scheme of the utility model as follows: an angularly adjustable teaching board comprising: the base is provided with rollers; the bracket is arranged on the base, can vertically move relative to the base and is provided with a pivot hole; the teaching board is provided with a pivot shaft, the pivot shaft is in pivot fit with the pivot hole, one end of the pivot shaft is fixedly connected with a gear, and the gear is provided with a plurality of tooth grooves which are arranged at intervals along the circumferential direction of the gear; the fixture block is positioned below the gear and can be installed on the bracket in a vertically sliding mode, a spring is arranged on the fixture block, the spring drives the fixture block to slide upwards to enable the fixture block to be clamped into any tooth groove to fix the gear, and a shifting lever is arranged on the fixture block.

Further, the base includes the sleeve, be equipped with a plurality of spacing holes that separate along vertical direction on the sleeve, the support includes the bracing piece of vertical setting, be equipped with the snak link on the bracing piece, the bracing piece inserts in the sleeve, the snak link is located one of them spacing downthehole, the snak link can be pressed in order to break away from corresponding spacing hole.

Further, the base still includes first connecting plate and second connecting plate, telescopic bottom fixedly connected with first connecting plate, first connecting plate extends along controlling the direction, both ends difference fixedly connected with about first connecting plate the second connecting plate, the second connecting plate extends along the fore-and-aft direction, both ends are equipped with the gyro wheel respectively around the lower surface of second connecting plate.

Further, the support still includes first frame plate and second frame plate, first frame plate level sets up, first frame plate is located the upper end of bracing piece and with bracing piece fixed connection, both ends are equipped with respectively about first frame plate the second frame plate, the vertical setting of second frame plate, be equipped with on the second frame plate the pivot hole, both ends are equipped with respectively about the teaching board the pivot axle, both sides the pivot axle and both sides the pivot hole one-to-one cooperation.

Furthermore, a limiting seat is arranged on the support and is positioned below the gear, the upper surface of the limiting seat is recessed downwards to form an accommodating groove, a sliding groove is formed in the surface of the limiting seat, which is far away from the support, and the sliding groove is communicated with the accommodating groove; the fixture block is located in the accommodating groove, the spring is abutted between the lower groove surface of the accommodating groove and the lower surface of the fixture block, and the shifting lever penetrates through the sliding groove and is fixedly connected with the fixture block.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this device is in the use, through the height that reciprocates the adjustable support of support and then the demonstration height of adjustment teaching board, and when the angle of needs adjustment teaching board, then stir the driving lever downwards earlier in order to drive the fixture block and overcome the elasticity of spring and move down and break away from the tooth's socket, the gear of rotation again, because the gear links to each other with the pivot axle, the pivot axle links to each other with the teaching board, consequently behind the gear of rotation, the teaching board also can rotate thereupon, thereby can adjust the angle of teaching board, when adjusting to suitable position, loosen the driving lever, under the effect of spring, the fixture block can be automatically shifted up the card and go into the tooth's inslot of gear with fixed gear and teaching board, adjustment process is simple, and convenient to use.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work:

fig. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a perspective view of the present invention;

fig. 4 is a perspective view of the teaching board of the present invention;

fig. 5 is a perspective view of the latch of the present invention.

Reference numerals:

1. a base; 2. a roller; 3. a support; 4. a teaching board; 5. a pivotal shaft; 6. a gear; 7. a clamping block; 8. a spring; 9. a deflector rod; 10. a sleeve; 11. a support bar; 12. a limiting seat; 13. a spring buckle; 14. a first connecting plate; 15. a second connecting plate; 16. a first frame plate; 17. a second shelf.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

An angularly adjustable teaching board 4 according to an embodiment of the present invention is described below with reference to fig. 1 to 5 of the accompanying drawings, the apparatus including: base 1, support 3, teaching board 4 and fixture block 7.

As shown in fig. 1 and 2, rollers 2 are provided on a base 1, thereby facilitating movement of the device; on base 1 was located to support 3, but support 3 vertical removal relatively base 1 from this through the height that reciprocates support 3 adjustable support 3 and then the demonstration height of adjustment teaching board 4.

As shown in fig. 3, 4 and 5, a pivot hole is formed in the bracket 3, a pivot shaft 5 is formed on the teaching board 4, the pivot shaft 5 is in pivot fit with the pivot hole, one end of the pivot shaft 5 is fixedly connected with a gear 6, and the gear 6 is provided with a plurality of tooth grooves which are circumferentially arranged at intervals along the gear 6; fixture block 7 is located gear 6 below and can install on support 3 with sliding from top to bottom, be equipped with spring 8 on fixture block 7, spring 8 often drives fixture block 7 and upwards slides so that fixture block 7 blocks in arbitrary tooth's socket with fixed gear 6, that is to say, spring 8 applies the effort that gives fixture block 7 and can make fixture block 7 have the trend of upward movement all the time, fixture block 7 just very easily blocks in the tooth's socket, fixed gear 6 makes gear 6 can not rotate, and then fixed teaching board 4, be equipped with driving lever 9 on fixture block 7, fixture block 7 can be reciprocated through stirring lever 9 from top to bottom, thereby can make fixture block 7 and tooth's socket break away from the cooperation.

This device is in the use, through the height that reciprocates support 3 adjustable support 3 and then the demonstration height of adjustment teaching board 4, and when needing to adjust the angle of teaching board 4, then stir driving lever 9 downwards earlier in order to drive fixture block 7 and overcome the elasticity of spring 8 and remove downwards and break away from the tooth's socket, gear 6 rotates again, because gear 6 links to each other with pivot axle 5, pivot axle 5 links to each other with teaching board 4, consequently, behind gear 6 rotates, teaching board 4 also can rotate thereupon, thereby can adjust the angle of teaching board 4, when adjusting to suitable position, loosen driving lever 9, under the effect of spring 8, fixture block 7 can move up automatically and block in order fixed gear 6 and teaching board 4 in the tooth's socket of gear 6 is blocked to the card, adjustment process is simple, and convenient to use.

In this embodiment, as shown in fig. 3, the base 1 includes a sleeve 10, the sleeve 10 is provided with a plurality of limiting holes spaced apart along a vertical direction, the support 3 includes a vertically disposed support rod 11, the support rod 11 is provided with a spring fastener 13, the support rod 11 is inserted into the sleeve 10, the spring fastener 13 is located in one of the limiting holes, and the spring fastener 13 can be pressed to be separated from the corresponding limiting hole, so that the support 3 can be adjusted and fixed up and down.

In this embodiment, as shown in fig. 4, the base 1 further includes a first connecting plate 14 and a second connecting plate 15, the bottom end of the sleeve 10 is fixedly connected with the first connecting plate 14, the first connecting plate 14 extends along the left-right direction, the left end and the right end of the first connecting plate 14 are respectively fixedly connected with the second connecting plate 15, the second connecting plate 15 extends along the front-back direction, and the front end and the rear end of the lower surface of the second connecting plate 15 are respectively provided with the roller 2, so that the base 1 is simple in structural form, high in structural strength and not easy to damage.

In this embodiment, as shown in fig. 2 and 3, the bracket 3 further includes a first frame plate 16 and a second frame plate 17, the first frame plate 16 is horizontally disposed, the first frame plate 16 is located at the upper end of the support rod 11 and is fixedly connected to the support rod 11, the second frame plate 17 is respectively disposed at the left end and the right end of the first frame plate 16, the second frame plate 17 is vertically disposed, the second frame plate 17 is provided with pivot holes, the left end and the right end of the teaching board 4 are respectively provided with pivot shafts 5, the pivot shafts 5 at the two sides are in one-to-one correspondence with the pivot holes at the two sides, and therefore the bracket 3 can stably support the teaching board 4.

In this embodiment, as shown in fig. 4 and 5, the bracket 3 is provided with a limiting seat 12, the limiting seat 12 is located below the gear 6, an upper surface of the limiting seat 12 is recessed downward to form an accommodating groove, a surface of the limiting seat 12 away from the bracket 3 is provided with a sliding groove, and the sliding groove is communicated with the accommodating groove; the fixture block 7 is located in the accommodating groove, the spring 8 is abutted between the lower groove face of the accommodating groove and the lower surface of the fixture block 7, the shifting lever 9 penetrates through the sliding groove to be fixedly connected with the fixture block 7, and the limiting seat 12 is arranged to limit the spring 8 and the fixture block 7.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An angularly adjustable teaching board, comprising:

the base is provided with rollers;

the bracket is arranged on the base, can vertically move relative to the base and is provided with a pivot hole;

the teaching board is provided with a pivot shaft, the pivot shaft is in pivot fit with the pivot hole, one end of the pivot shaft is fixedly connected with a gear, and the gear is provided with a plurality of tooth grooves which are arranged at intervals along the circumferential direction of the gear;

the fixture block is positioned below the gear and can be installed on the bracket in a vertically sliding mode, a spring is arranged on the fixture block, the spring drives the fixture block to slide upwards to enable the fixture block to be clamped into any tooth groove to fix the gear, and a shifting lever is arranged on the fixture block.

2. The angularly adjustable teaching board of claim 1, wherein the base includes a sleeve, the sleeve having a plurality of vertically spaced-apart limiting holes, the support includes a vertically disposed support rod, the support rod having a snap fastener, the support rod being inserted into the sleeve, the snap fastener being located in one of the limiting holes, the snap fastener being depressible to disengage the corresponding limiting hole.

3. The angularly adjustable teaching board of claim 2, wherein the base further comprises a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected to the bottom end of the sleeve, the first connecting plate extends in the left-right direction, the second connecting plate is fixedly connected to the left and right ends of the first connecting plate, respectively, the second connecting plate extends in the front-rear direction, and the rollers are provided at the front and rear ends of the lower surface of the second connecting plate, respectively.

4. The angularly adjustable teaching board of claim 2, wherein the bracket further includes a first frame plate and a second frame plate, the first frame plate is horizontally disposed, the first frame plate is located at the upper end of the support rod and is fixedly connected to the support rod, the second frame plate is respectively disposed at the left and right ends of the first frame plate, the second frame plate is vertically disposed, the second frame plate is provided with the pivot holes, the pivot shafts are respectively disposed at the left and right ends of the teaching board, and the pivot shafts on both sides are in one-to-one correspondence with the pivot holes on both sides.

5. The angularly adjustable teaching board according to claim 1, wherein the bracket is provided with a limiting seat, the limiting seat is located below the gear, an upper surface of the limiting seat is recessed downward to form a receiving groove, a surface of the limiting seat away from the bracket is provided with a sliding groove, and the sliding groove is communicated with the receiving groove;

the fixture block is located in the accommodating groove, the spring is abutted between the lower groove surface of the accommodating groove and the lower surface of the fixture block, and the shifting lever penetrates through the sliding groove and is fixedly connected with the fixture block.