CN214012262U

CN214012262U - History teaching presentation device

Info

Publication number: CN214012262U
Application number: CN202021359776.XU
Authority: CN
Inventors: 花晓倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-08-20
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses a history teaching demonstration device, which belongs to the technical field of teaching equipment and comprises a teaching blackboard, wherein mounting grooves are drilled at the upper part and the lower part of the front end of the teaching blackboard, a rotating plate is movably hinged between the upper inner wall and the lower inner wall of the two mounting grooves through a hinge shaft, a second rotating groove is drilled at the lower end of the rotating plate positioned at the upper part, a first rotating groove is drilled at the upper end of the rotating plate positioned at the lower part, a screw rod is movably inserted in the second rotating groove, a rotating shaft is movably inserted in the first rotating groove, a thread groove is drilled at the upper end of the rotating shaft, the thread groove is internally threaded to the screw rod, an annular limiting plate is fixedly connected at the middle part of the circumferential surface of the rotating shaft, a fixing ring is sleeved on the circumferential surface of the rotating shaft, finally, the convenience is realized for fixing a history map at one side of the teaching blackboard, a history teacher can explain history knowledge for students by contrasting the map, writing of a blackboard writing can not be influenced when the history map is fixed, the interest of students to the study history is improved, and the practicability is strong.

Description

History teaching presentation device

Technical Field

The utility model relates to a teaching equipment technical field, more specifically say, relate to a history teaching presentation device.

Background

History, called history for short, refers to events and activities past in human society, and records, researches and explains the events in a systematic way, and the history is objectively existed and can not be changed no matter how the history is written by the scientists; the teaching instrument is an instrument with unit price above 800 RMB (including RMB) in teaching and scientific research units and the use direction of teaching or scientific research. The teaching instrument can be divided into two main categories of experiment and practical training and is mainly applied to various professions of the technical and industrial categories.

The existing history teaching demonstration device cannot fix the history map well, so that students can not conveniently learn historical knowledge, and therefore the history teaching demonstration device is provided.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a history teaching presentation device, it can realize being convenient for fix the historical map in one side of teaching blackboard, and historical teacher can explain historical knowledge for the student by contrast map, does not influence writing of writing yet when fixed historical map, has improved the student to the interest of study history, and the practicality is extremely strong.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a history teaching demonstration device comprises a teaching blackboard, wherein mounting grooves are drilled at the upper part and the lower part of the front end of the teaching blackboard, a rotating plate is movably hinged between the upper inner wall and the lower inner wall of each mounting groove through a hinge shaft, a second rotating groove is drilled at the lower end of the rotating plate positioned at the upper part, a first rotating groove is drilled at the upper end of the rotating plate positioned at the lower part, a lead screw is movably inserted in the second rotating groove, a rotating shaft is movably inserted in the first rotating groove, a threaded groove is drilled at the upper end of the rotating shaft, the threaded groove is connected with the lead screw in a threaded manner, an annular limiting plate is fixedly connected to the middle part of the circumferential surface of the rotating shaft, a fixing ring is sleeved on the circumferential surface of the rotating shaft and positioned at the upper part of the annular limiting plate, a history map photo frame is fixedly connected to the front end of the fixing ring, and a rotating mechanism is arranged at the rear side of the history map photo frame, finally, the historical map can be conveniently fixed on one side of the teaching blackboard, historical teachers can explain historical knowledge for students by contrasting the map, writing of blackboard writing is not influenced when the historical map is fixed, interest of the students in learning history is improved, and the practicability is high.

As a preferred scheme of the utility model, slewing mechanism includes gear, rack and time shape stopper, time shape stopper fixed connection is in the rear end left part of historical map photo holder frame, the rack activity is pegged graft in time shape stopper, gear fixed connection is in the circumferential surface of pivot, and the gear is located the lower part of annular limiting plate, gear engagement connects in the rack.

As a preferred scheme of the utility model, the equal fixedly connected with fixed plate in two parts about the upper end of teaching blackboard, two the round hole has all been opened to pound to the front end of fixed plate.

As a preferred scheme of the utility model, the left end fixedly connected with handle of rack, the surface coating of handle has the rubber sleeve, the surface of rubber sleeve is carved with anti-skidding line.

As an optimized proposal of the utility model, the lower part of the right end of the teaching blackboard is fixedly connected with a metal ring.

As an optimal scheme of the utility model, stainless steel is all chooseed for use to becket, two rotor plates, lead screw, pivot and ring limiting plate, and the galvanization is all done on the surface of becket, two rotor plates, lead screw, pivot and ring limiting plate.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is when the position of fixed historical map photo holder frame of needs, rotatory two rotor plates, make two rotor plates stretch out from two mounting grooves, will gu fixed ring cover at the circumferential surface of pivot, place the lower extreme of pivot in first rotary tank, make the upper end of lead screw aim at the second rotary tank, hold the lead screw, the pulling handle, the removal of handle drives the rack and removes, the removal of rack drives gear and pivot rotation, the rotation of pivot makes the lead screw rise, until the lead screw inserts in the second rotary tank, loosen the lead screw, the position of lead screw and pivot is fixed, the position that finally realizes historical map photo holder frame is fixed, when needs take off historical map photo holder frame, reverse operation can.

(2) This scheme is provided with the becket, when need not use the pivot to fix historical map photo holder frame, can insert the becket with the pivot in, and the fixed of pivot position can be realized to annular limiting plate in the upper end of becket under the action of gravity, also can regard the pivot as the teacher's pointer to use, and is very practical.

(3) This scheme is when taking off historical map photo holder frame back, can rotate two rotor plates, places the rotor plate in the mounting groove, fish tail student when preventing that the student from playing between class, has improved the security of this device.

Drawings

FIG. 1 is a perspective view of a history teaching demonstration apparatus of the present invention;

FIG. 2 is a cross-sectional view of the back part of a history map photo frame of a history teaching demonstration device of the present invention;

fig. 3 is a plan view of the history teaching demonstration apparatus of the present invention.

The reference numbers in the figures illustrate:

the teaching blackboard comprises a teaching blackboard 1, a fixing plate 2, a mounting groove 3, a rotating plate 4, a screw rod 5, a history map photo frame 6, a rotating shaft 7, a rack 8, a handle 9, a metal ring 10, a threaded groove 11, a fixing ring 12, an annular limiting plate 13, a square-shaped limiting block 14, a gear 15, a first rotating groove 16 and a second rotating groove 17.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-3, a history teaching demonstration device comprises a teaching blackboard 1, wherein mounting grooves 3 are drilled at the upper and lower parts of the front end of the teaching blackboard 1, a rotating plate 4 is movably hinged between the upper and lower inner walls of the two mounting grooves 3 through a hinge shaft, a second rotating groove 17 is drilled at the lower end of the rotating plate 4 at the upper part, a first rotating groove 16 is drilled at the upper end of the rotating plate 4 at the lower part, a screw rod 5 is movably inserted in the second rotating groove 17, a rotating shaft 7 is movably inserted in the first rotating groove 16, a thread groove 11 is drilled at the upper end of the rotating shaft 7, the thread groove 11 is in threaded connection with the screw rod 5, an annular limiting plate 13 is fixedly connected to the middle part of the circumferential surface of the rotating shaft 7, a fixing ring 12 is sleeved on the circumferential surface, the fixing ring 12 is located on the upper portion of the ring-shaped limiting plate 13, the front end of the fixing ring 12 is fixedly connected with the historical map photo frame 6, and the rear side of the historical map photo frame 6 is provided with a rotating mechanism.

In this embodiment, mounting groove 3 is convenient for the rotor plate 4 is rotatory to be withdrawed, take off back with historical map photo holder frame 6, can rotate two rotor plates 4, place rotor plate 4 in mounting groove 3, fish tail student when preventing student's classroom from playing, the security of this device has been improved, rotor plate 4 supports to press from both sides tight lead screw 5 and pivot 7, lead screw 5 is mutually supported with pivot 7 and realizes the flexible of lead screw 5 through rotatory pivot 7, historical map photo holder frame 6 is the protection historical map, thread groove 11 is the lead screw 5 male of being convenient for, gu fixed ring 12 is placed and is realized fixed historical map photo holder frame 6 position on annular limiting plate 13 upper portion, annular limiting plate 13 supports solid fixed ring 12 position, first turn groove 16 is the pivot 7 of being convenient for fixed, second turn groove 17 is the lead screw 5 of being convenient for fixed.

Specifically, referring to fig. 1-3, the rotating mechanism includes a gear 15, a rack 8 and a clip stopper 14, the clip stopper 14 is fixedly connected to the left portion of the rear end of the history map photo frame 6, the rack 8 is movably inserted into the clip stopper 14, the gear 15 is fixedly connected to the circumferential surface of the rotating shaft 7, the gear 15 is located at the lower portion of the annular stopper 13, and the gear 15 is engaged with the rack 8.

In this embodiment, clip stopper 14 fixed connection is in the rear end left part of historical map photo holder frame 6, and rack 8 activity is pegged graft in clip stopper 14, and gear 15 fixed connection is in the circumferential surface of pivot 7, and gear 15 is located the lower part of annular limiting plate 13, and gear 15 meshes to be connected in rack 8, and the pivot 7's of being convenient for rotation has improved the convenience that this device used.

Specifically, referring to fig. 1 and 3, the left and right parts of the upper end of the teaching blackboard 1 are fixedly connected with fixing plates 2, and the front ends of the two fixing plates 2 are provided with round holes.

In this embodiment, the equal fixedly connected with fixed plate 2 in two parts about the upper end of teaching blackboard 1, the round hole has all been opened to the front end of two fixed plates 2, and the position of the fixed teaching blackboard 1 of being convenient for is fixed teaching blackboard 1 at the wall, has improved the practicality of this device.

Specifically, referring to fig. 1-3, a handle 9 is fixedly connected to the left end of the rack 8, a rubber sleeve is wrapped on the surface of the handle 9, and anti-skid lines are engraved on the surface of the rubber sleeve.

In this embodiment, the left end fixedly connected with handle 9 of rack 8, the surface coating of handle 9 has the rubber sleeve, and the surface of rubber sleeve is carved with anti-skidding line, and the rack 8's of being convenient for removal has improved and has held the comfort level that handle 9 removed rack 8.

Specifically, referring to fig. 1 and 3, a metal ring 10 is fixedly connected to the lower portion of the right end of the teaching blackboard 1.

In this embodiment, the right-hand member lower part fixedly connected with becket 10 of teaching blackboard 1, when need not use pivot 7 to fix history map photo holder frame 6, can insert the becket 10 with pivot 7 in, annular limiting plate 13 can realize the fixed of pivot 7 position under the action of gravity in the upper end of becket 10, also can regard pivot 7 as the teacher's pointer to use, and is very practical.

Specifically, referring to fig. 1-3, the metal ring 10, the two rotating plates 4, the screw 5, the rotating shaft 7 and the ring-shaped limiting plate 13 are made of stainless steel, and the surfaces of the metal ring 10, the two rotating plates 4, the screw 5, the rotating shaft 7 and the ring-shaped limiting plate 13 are galvanized.

In this embodiment, stainless steel is all chooseed for use to becket 10, two rotor plates 4, lead screw 5, pivot 7 and ring limiting plate 13, is of value to and prevents becket 10, two rotor plates 4, lead screw 5, pivot 7 and ring limiting plate 13 by water corrosion, has prolonged the life of this device, and becket 10, two rotor plates 4, lead screw 5, pivot 7 and ring limiting plate 13's surface all makes zinc-plating and handles, makes this device more pleasing to the eye

The working principle is as follows: when the position of the historical map photo frame 6 needs to be fixed, the two rotating plates 4 are rotated to enable the two rotating plates 4 to extend out of the two mounting grooves 3, the fixing ring 12 is sleeved on the circumferential surface of the rotating shaft 7, the lower end of the rotating shaft 7 is placed in the first rotating groove 16, the upper end of the screw rod 5 is aligned to the second rotating groove 17, the screw rod 5 is held by a hand, the handle 9 is pulled, the rack 8 is driven to move by the movement of the handle 9, the gear 15 and the rotating shaft 7 are driven to rotate by the movement of the rack 8, the screw rod 5 is lifted by the rotation of the rotating shaft 7 until the screw rod 5 is inserted into the second rotating groove 17, the screw rod 5 is loosened, the positions of the screw rod 5 and the rotating shaft 7 are fixed, and finally the position of the historical map photo frame 6 is fixed.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides a history teaching presentation device, includes teaching blackboard (1), its characterized in that: the teaching blackboard is characterized in that mounting grooves (3) are drilled in the upper portion and the lower portion of the front end of the teaching blackboard (1), a rotating plate (4) is movably hinged between the upper inner wall and the lower inner wall of each mounting groove (3) through a hinge shaft, a second rotating groove (17) is drilled in the lower end of the rotating plate (4) positioned on the upper portion, a first rotating groove (16) is drilled in the upper end of the rotating plate (4) positioned on the lower portion, a lead screw (5) is movably inserted in the second rotating groove (17), a rotating shaft (7) is movably inserted in the first rotating groove (16), a threaded groove (11) is drilled in the upper end of the rotating shaft (7), the threaded groove (11) is in threaded connection with the lead screw (5), an annular limiting plate (13) is fixedly connected to the middle of the circumferential surface of the rotating shaft (7), a fixing ring (12) is sleeved on the circumferential surface of the rotating shaft (7), and the fixing ring (12) is positioned on the upper portion of the annular limiting plate (13), the front end of the fixing ring (12) is fixedly connected with a historical map photo frame (6), and the rear side of the historical map photo frame (6) is provided with a rotating mechanism.

2. A history teaching demonstration apparatus according to claim 1 wherein: the rotating mechanism comprises a gear (15), a rack (8) and a clip limiting block (14), the clip limiting block (14) is fixedly connected to the left portion of the rear end of the historical map photo frame (6), the rack (8) is movably inserted into the clip limiting block (14), the gear (15) is fixedly connected to the circumferential surface of the rotating shaft (7), the gear (15) is located at the lower portion of the annular limiting plate (13), and the gear (15) is meshed with the rack (8).

3. A history teaching demonstration apparatus according to claim 2 wherein: the teaching blackboard is characterized in that fixing plates (2) are fixedly connected to the left portion and the right portion of the upper end of the teaching blackboard (1), and round holes are formed in the front ends of the two fixing plates (2).

4. A history teaching demonstration apparatus according to claim 3 wherein: the left end fixedly connected with handle (9) of rack (8), the surface parcel of handle (9) has the rubber sleeve, the surface of rubber sleeve is carved with anti-skidding line.

5. A history teaching demonstration apparatus according to claim 4 wherein: the lower part of the right end of the teaching blackboard (1) is fixedly connected with a metal ring (10).

6. A history teaching demonstration apparatus according to claim 5 wherein: the metal ring (10), the two rotating plates (4), the lead screw (5), the rotating shaft (7) and the annular limiting plate (13) are made of stainless steel, and the surfaces of the metal ring (10), the two rotating plates (4), the lead screw (5), the rotating shaft (7) and the annular limiting plate (13) are galvanized.