CN210836695U - Auxiliary teaching board for marketing teaching - Google Patents

Abstract

The utility model discloses an auxiliary teaching board for marketing teaching, which comprises a main teaching board and a slidable auxiliary teaching board positioned in the main teaching board, wherein expansion springs are arranged in the main teaching board and at the upper and lower sides of the auxiliary teaching board, the expansion springs are provided with limiting bulges towards one end of the auxiliary teaching board, and a plurality of limiting grooves corresponding to the limiting bulges are arranged on the upper and lower end surfaces of the auxiliary teaching board; install the expansion spring and the spacing round bulge that lie in main teaching board inside through the design, elasticity through expansion spring can be fixed with vice teaching board centre gripping automatically, it is spacing to need not extra action with vice teaching board, and can realize stopping promptly of vice teaching board and fix, guide pillar etc. that lie in main teaching board have been installed through the design simultaneously, be convenient for carry on spacingly to vice teaching board, make vice teaching board and main teaching board be in parallel state as far as possible, and the limiting plate can prevent that vice teaching board from droing.

Description

Auxiliary teaching board for marketing teaching

technical field

The utility model belongs to the technical field of marketing, in particular to an auxiliary teaching board for marketing teaching.

Background technique

Application No. CN201821120315.X discloses a new type of auxiliary teaching board for marketing teaching, including a base, a main board, an auxiliary teaching board, a support rod and a rubber band. The main board is hinged on the base, and the auxiliary teaching board is slidingly connected to the In the main board, the struts are connected to the main board through threads, and the two ends of the rubber bands are respectively hung on the main board and the sub-teacher board; the utility model is provided with a main board that can be angled and can be folded flat, which can be adjusted according to actual needs Angle, can be folded flat when not in use, easy to carry and store, the main board is provided with a slide-out sub-teaching board to increase the available teaching panel area.

However, the sub-teaching board is fixed with bolts, and holes need to be opened on the main board and the sub-teaching board, and the bolts need to be rotated when fixing or moving the sub-teaching board, which is relatively inconvenient to use. We propose an auxiliary teaching board for teaching marketing.

Utility model content

The purpose of the present invention is to provide an auxiliary teaching board for marketing teaching, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: an auxiliary teaching board for marketing teaching, including a main board and a sub-teaching board that is slidable inside the main board, and the interior of the main board is located at the upper and lower sides of the sub-teaching board. Expansion springs are installed on both sides, and a limit circular protrusion is installed at one end of the expansion spring toward the auxiliary teaching board, and the upper and lower end surfaces of the auxiliary teaching board are provided with a plurality of limiting grooves corresponding to the limiting circular protrusions.

Preferably, a guide post is installed inside the main board, a guide hole corresponding to the guide post is opened inside the auxiliary board, and the end of the guide post is inserted into the inside of the guide hole, and the guide post A limit plate is installed at the end of the .

Preferably, the expansion spring and the limiting circular protrusion are located at a position close to the open end of one side of the main board.

Preferably, the maximum outer diameter of the limiting plate is larger than the maximum outer diameter of the guide post.

Preferably, a plurality of the limiting grooves are evenly arranged on the upper and lower end faces of the auxiliary teaching board, respectively.

Preferably, a base is movably connected to the bottom of the main board, and struts are installed on both side walls of the main board.

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

Through the design and installation of the expansion spring and the limiting circular protrusion located inside the main board, the auxiliary board can be automatically clamped and fixed by the elastic force of the expansion spring, and the auxiliary board can be limited without additional actions, and the auxiliary board can be realized. The board is fixed when it stops. At the same time, the guide posts located in the main board are designed and installed, which is convenient to limit the position of the auxiliary board. The assistant board fell off.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the main board and the auxiliary board of the present utility model;

3 is a schematic diagram of the internal structure of the main board and the auxiliary board of the present invention;

Fig. 4 is the enlarged structural representation of the A part of the utility model;

In the figure: 1. base; 2. main board; 3. secondary teaching board; 4. support rod; 5. guide hole; 6. guide post; 7. expansion spring; 8. limit circular convex; 9. limit plate ; 10. Limit groove.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Please refer to FIG. 1-FIG. 4, the present utility model provides a technical solution: an auxiliary teaching board for marketing teaching, including a main board 2 and a sub-teaching board 3 that is slidable inside the main board 2, and is located inside the main board 2 and located in the main board 2. The upper and lower sides of the assistant teaching board 3 are installed with expansion springs 7, and the expansion spring 7 is installed with a limiting circular protrusion 8 toward one end of the secondary teaching board 3, and the upper and lower end faces of the secondary teaching board 3 are provided with a plurality of limiting circular protrusions. 8 corresponds to the limit groove 10.

In this embodiment, preferably, a guide post 6 is installed inside the main board 2 , a guide hole 5 corresponding to the guide post 6 is opened inside the sub-teacher board 3 , and the end of the guide post 6 is inserted into the interior of the guide hole 5 . , and a limiting plate 9 is installed at the end of the guide post 6 .

In this embodiment, preferably, the expansion spring 7 and the limiting circular protrusion 8 are located at a position close to the open end of the main board 2 on one side, so as to limit the position of the withdrawn auxiliary board 3 .

In this embodiment, preferably, the maximum outer diameter of the limiting plate 9 is larger than the maximum outer diameter of the guide post 6 to prevent the auxiliary teaching board 3 from falling off.

In this embodiment, preferably, the plurality of limiting grooves 10 are evenly arranged on the upper and lower end surfaces of the auxiliary teaching board 3 respectively.

In this embodiment, preferably, the base 1 is movably connected to the bottom of the main board 2 , and support rods 4 are installed on both side walls of the main board 2 .

The working principle and use process of the utility model: when the device is in use, when the auxiliary teaching board 3 is taken out, the auxiliary teaching board 3 is directly pulled, and in the process of pulling, the circular protrusion 8 is limited by the elastic force of the expansion spring 7 By engaging with the plurality of limiting grooves 10 one by one, the sub-teaching board 3 can be fixed during the pulling process and at the end of the pulling, and the guide post 6 can provide part of the auxiliary teaching board 3 when the auxiliary teaching board 3 is pulled and fixed. The supporting force is used to limit the position of the sub-teaching board 3, so that the sub-teaching board 3 and the main board 2 are in a parallel state as much as possible, and the limiting plate 9 can prevent the sub-teaching board 3 from falling off.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. Marketing teaching is with supplementary teaching board, including main teaching board (2) and be located main teaching board (2) inside slidable vice teaching board (3), its characterized in that: expansion spring (7) are all installed to the inside of main teaching board (2) and the upper and lower both sides that are located vice teaching board (3), spacing protruding (8) are installed towards the one end of vice teaching board (3) in expansion spring (7), just a plurality of spacing recess (10) that correspond with spacing protruding (8) are all seted up to the upper and lower terminal surface of vice teaching board (3).

2. The auxiliary teaching board for marketing teaching of claim 1, wherein: the teaching board is characterized in that a guide post (6) is mounted inside the main teaching board (2), a guide hole (5) corresponding to the guide post (6) is formed inside the auxiliary teaching board (3), the tail end of the guide post (6) is inserted into the guide hole (5), and a limiting plate (9) is mounted at the tail end of the guide post (6).

3. The auxiliary teaching board for marketing teaching of claim 1, wherein: the expansion spring (7) and the limiting round bulge (8) are positioned at the position close to the opening end on one side of the main teaching board (2).

4. The auxiliary teaching board for marketing teaching of claim 2, wherein: the maximum outer diameter of the limiting plate (9) is larger than that of the guide pillar (6).

5. The auxiliary teaching board for marketing teaching of claim 1, wherein: the limiting grooves (10) are uniformly distributed on the upper end face and the lower end face of the auxiliary teaching board (3) respectively.

6. The auxiliary teaching board for marketing teaching of claim 1, wherein: the bottom swing joint of main teaching board (2) has base (1), branch (4) are all installed to the both sides wall of main teaching board (2).

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