CN208069201U - A kind of education blackboard of draw and insert-type - Google Patents

Abstract

The utility model is related to teaching aid technical fields, and disclose a kind of education blackboard of draw and insert-type, including outer blackboard, the internal activity of the outer blackboard is equipped with interior blackboard, the back side inner wall of the outer blackboard is fixedly connected with connecting rod, the back side upper end of the interior blackboard offers the sliding slot one to interlock with connecting rod, the bottom interior wall of the outer blackboard offers sliding slot two, the bottom of the interior blackboard is installed with and the matched idler wheel of sliding slot two-phase, the back side lower end of the interior blackboard is installed with rack, the bottom interior wall lower end of the outer blackboard is fixedly connected with fixing axle.The education blackboard of the draw and insert-type, push stick that the rack on interior blackboard is made to be engaged with fluted disc by pressing, using the bottom roller of interior blackboard to release interior blackboard, the write area of outer blackboard is expanded, when not in use, pushes the other end in blackboard, fluted disc drives the rack on interior blackboard, using bottom roller, interior blackboard is taken in into outer blackboard, to solve the problems, such as that volume is big.

Description

A kind of education blackboard of draw and insert-type

Technical field

The utility model is related to teaching aid technical field, the education blackboard of specially a kind of draw and insert-type.

Background technology

Blackboard is not to refer in particular to the plate face of black, said in traditional sense it be one can be with the plane of repeated writing, plate face is hard Firmly, it is chiefly used in imparting knowledge to students.Made of plank or ground glass etc., it can be write above with the specific writing material such as chalk. Mostly black, blackish green, white or ecru.

Before word invention, it has been found that charcoal can draw a picture, it can be found that Gu in some ancient times grottos in Europe Some mural paintings in generation, the palisades for drawing these mural paintings have been properly termed as blackboard from traditional sense, over more than 200 years, blackboard It is applied to plank with blacking from earliest, the water mill glass of the nineties, color coating steel are arrived in the hard objects such as cement surface Plate, composite panel have witnessed the development step by step of world's educational undertaking, have conveyed knowledge for the mankind, and sweat has been made in universal education Horse contribution, the type of existing blackboard also begin to become complicated various, and dividing from color has blackboard, and green plate, blank is from surface shape Dividing has surface plate, cambered plate, and dividing from structure composition has holder movable plate, draw back plate, lifter plate, magnet board, from purposes Dividing has blackboard for education, blank of handling official business, billboard, display board etc., and blackboard for education has electronic blackboard, Multifunctional combined board, group Push-and-pull blackboard, interactive electric whiteboard, band curtain projection plate etc. are closed, blackboard volume currently on the market is larger, is fixed, adds The limited area in upper classroom, thus when in use, it is very inconvenient, and the content write is also seldom.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of education blackboard of draw and insert-type, have it is small, The advantages that can expanding, solves the problems, such as that volume is big, panel is small.

(2) technical solution

For realize it is above-mentioned it is small, purpose can be expanded, the utility model provides the following technical solutions：A kind of religion of draw and insert-type It educates and uses blackboard, including outer blackboard, the internal activity of the outer blackboard that interior blackboard is installed, the back side inner wall of the outer blackboard is fixed It is connected with connecting rod, the back side upper end of the interior blackboard offers the sliding slot one to interlock with connecting rod, the bottom interior wall of the outer blackboard Sliding slot two is offered, the bottom of the interior blackboard is installed with and the matched idler wheel of sliding slot two-phase, the back side of the interior blackboard Lower end is installed with rack, and the bottom interior wall lower end of the outer blackboard is fixedly connected with fixing axle, the inner wall of the outer blackboard Lower end is installed with fixed seat, and the quantity of the fixed seat is two, and two fixed seats are with the center line of fluted disc cross section Symmetry axis is symmetricly set on the both sides of fluted disc, and the middle card of the fixed seat is equipped with fluted disc, and one end of the fluted disc is connected with company It takes over the baton, the internal sleeve of the fixing axle is equipped with pitman, and the pitman other end is fixedly connected with promotion stick, the promotion stick The spring being sleeved on outside pitman is fixedly connected between outer blackboard.

Preferably, the width of the sliding slot one is 3-5 centimetres, and sliding slot one is mutually clamped with connecting rod.

Preferably, the outer blackboard length is three meters, width is two meters, and two meters of interior blackboard length, width are 1 point 6 meter.

Preferably, the compression elongation of the spring is ten centimetres.

(3) advantageous effect

Compared with prior art, the utility model provides a kind of education blackboard of draw and insert-type, has following beneficial to effect Fruit：The education blackboard of the draw and insert-type pushes stick that the rack on interior blackboard is made to be engaged with fluted disc, utilizes interior blackboard by pressing Bottom roller expands the write area of outer blackboard to release interior blackboard, when not in use, pushes the other end in blackboard, fluted disc Interior blackboard is taken in outer blackboard by the rack in driving on blackboard using bottom roller, to solve the problems, such as that volume is big.

Description of the drawings

Fig. 1 is the utility model structure schematic diagram；

Fig. 2 is the utility model texture edge schematic diagram；

Fig. 3 is the partial enlargement structural representation in the portions A in the utility model Fig. 2.

In figure：1 outer blackboard, blackboard, 3 connecting rods, 4 sliding slots one, 5 sliding slots two, 6 idler wheels, 7 racks, 8 fluted discs, 9 are fixed in 2 Seat, 10 pitmans, 11 fixing axles, 12 push stick, 13 springs.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of education blackboard of draw and insert-type, including it is outer The internal activity of blackboard 1, outer blackboard 1 is equipped with interior blackboard 2, and 1 length of outer blackboard is three meters, width is two meters, 2 length of interior blackboard Two meters, width be 1 point 6 meter, the back side inner wall of outer blackboard 1 is fixedly connected with connecting rod 3, and the back side upper end of interior blackboard 2 offers The width of the sliding slot 1 to interlock with connecting rod 3, sliding slot 1 is 3-5 centimetres, and sliding slot 1 is clamped with 3 phase of connecting rod, outer blackboard 1 Bottom interior wall offers sliding slot 25, pushes stick 12 that the rack 7 on interior blackboard 2 is made to be engaged with fluted disc 8 by pressing, using interior black The bottom roller 6 of plate 2 expands the write area of outer blackboard 1 to release interior blackboard 2, and the bottom of interior blackboard 2 is fixedly mounted There are the idler wheel 6 to match with sliding slot 25, the back side lower end of interior blackboard 2 to be installed with rack 7, the bottom interior wall of outer blackboard 1 Lower end is fixedly connected with fixing axle 11, and the inner wall lower end of outer blackboard 1 is installed with fixed seat 9, and the quantity of fixed seat 9 is two It is a, and two fixed seats 9 are symmetricly set on the both sides of fluted disc 8 using the center line of 8 cross section of fluted disc as symmetry axis, in fixed seat 9 Between be installed with fluted disc 8, one end of fluted disc 8 is connected with pitman 10, and the internal sleeve of fixing axle 11 is equipped with pitman 10, pitman 10 The other end, which is fixedly connected with, pushes stick 12, when not in use, the other end of interior blackboard 2, fluted disc 8 is pushed to drive the tooth on interior blackboard 2 Interior blackboard 2 is taken in outer blackboard 1 by item 7 using bottom roller 6, to solve the problems, such as that volume is big, push stick 12 and outer blackboard 1 it Between be fixedly connected with the compression elongation that the spring 13 being sleeved on outside pitman 10 is sleeved on the external springs 13 of pitman 10 It is ten centimetres.

When in use, pressing pushes stick 12 that its pitman 10 connected is made to push fluted disc 8, and rack 7 and fluted disc 8 is made to engage, It is easily pushed and pulled using 2 bottom roller 6 of interior blackboard, to release the interior blackboard 2 in outer blackboard 1, usually when not in use, together Interior blackboard 2 is promoted outer blackboard 1 by reason using the engaging of 2 bottom roller 6 of interior blackboard and rack 7, is reached and is saved space, write area Small problem.

In conclusion the education blackboard of the draw and insert-type, pushes stick 12 to make rack 7 and tooth on interior blackboard 2 by pressing Disk 8 engages, and using the bottom roller 6 of interior blackboard 2 to release interior blackboard 2, expands the write area of outer blackboard 1, does not use When, push the other end of interior blackboard 2, fluted disc 8 to drive the rack 7 on interior blackboard 2, using bottom roller 6, interior blackboard 2 is taken in Outer blackboard 1, to solve the problems, such as that volume is big.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of education blackboard of draw and insert-type, including outer blackboard (1), it is characterised in that：The internal activity of the outer blackboard (1) Interior blackboard (2) is installed, the back side inner wall of the outer blackboard (1) is fixedly connected with connecting rod (3), the back side of the interior blackboard (2) Upper end offers the sliding slot one (4) to interlock with connecting rod (3), and the bottom interior wall of the outer blackboard (1) offers sliding slot two (5), institute The bottom for stating interior blackboard (2) is installed with the idler wheel (6) to match with sliding slot two (5), the back side lower end of the interior blackboard (2) It is installed with rack (7), the bottom interior wall lower end of the outer blackboard (1) is fixedly connected with fixing axle (11), the outer blackboard (1) inner wall has lower end to be installed with fixed seat (9), and the quantity of the fixed seat (9) is two, and two fixed seats (9) The both sides of fluted disc (8) are symmetricly set on using the center line of fluted disc (8) cross section as symmetry axis, the intermediate of the fixed seat (9) clamps There are fluted disc (8), one end of the fluted disc (8) to be connected with pitman (10), the internal sleeve of the fixing axle (11) is equipped with pitman (10), pitman (10) other end, which is fixedly connected with, pushes stick (12), solid between the promotion stick (12) and outer blackboard (1) Surely it is connected with and is sleeved on the external spring (13) of pitman (10).

2. a kind of education blackboard of draw and insert-type according to claim 1, it is characterised in that：The width of the sliding slot one (4) Degree is 3-5 centimetres, and sliding slot one (4) is mutually clamped with connecting rod (3).

3. a kind of education blackboard of draw and insert-type according to claim 1, it is characterised in that：Outer blackboard (1) length It it is two meters for three meters, width, interior two meters of blackboard (2) length, width are 1 point 6 meter.

4. a kind of education blackboard of draw and insert-type according to claim 1, it is characterised in that：The compression of the spring (13) Elongation is ten centimetres.