Teaching display device for teachers

Abstract

The utility model discloses a teacher teaching display device, which comprises a blackboard, a baffle plate, a placing groove, an auxiliary plate, an upper end seat, a positioning recess, a positioning convex plate and a fixing component, and is characterized in that the fixing component comprises a shell, a sealing cover, an inner cavity, a sliding block and a reset spring, and the sliding block is composed of a left end sliding block and a right end baffle block; a limiting filling block is arranged on the left end wall of the right end check block, a limiting check block is arranged on the upper end wall of the right side of the inner cavity, a spacing cavity is formed between the limiting filling block and the upper end wall of the inner cavity, and a guide hole communicated with the spacing cavity is fixedly formed in the upper end of the shell. The teaching aid has the following advantages and effects: a teacher can write through the auxiliary board, so that the teaching aid is very convenient; the auxiliary plate further has the advantage of being convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the field of teaching, in particular to a teaching display device for teachers. Background Art

[0002] Blackboard is a common teaching display device used by teachers in their teaching work. However, in actual teaching work, teachers may fill up the blackboard and cannot continue writing. If an auxiliary board can be added to the blackboard for teachers to write on without erasing the content on the blackboard, it will undoubtedly provide convenience for actual teaching. At the same time, the detachability of the auxiliary board should also be considered to facilitate the installation and removal of the teacher. Utility Model Content

[0003] The purpose of the utility model is to provide a teacher teaching display device to solve the problems raised in the background technology.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a teacher teaching display device, including a blackboard, a baffle is fixedly provided at the lower end of the blackboard, a placement groove is formed between the baffle and the blackboard, an auxiliary board is placed in the placement groove, and the lower end of the auxiliary board is limited by the baffle; an upper end seat is fixedly provided at the upper end of the blackboard, a square positioning recess is provided below the upper end seat, a positioning convex plate adapted to the positioning recess is fixedly provided at the upper end of the auxiliary board, and the positioning convex plate is embedded in the positioning recess; a fixing member for fixing the upper end of the auxiliary board is provided on the left side of the upper end seat;

[0005] The fixing member includes a shell fixedly arranged on the upper end seat, the left side of the shell is closed by a cover, a transverse inner cavity is formed inside the shell, and a sliding block is slidably arranged in the inner cavity, the sliding block is composed of a left end slider and a right end stopper, the right end stopper can extend rightward out of the inner cavity and block the outer side of the positioning convex plate, so as to achieve the purpose of fixing the auxiliary plate; a return spring is compressed and arranged between the left end slider and the cover, and the return spring allows the right end stopper to always have a tendency to move rightward;

[0006] The right end stopper is flush with the lower end of the left end slider, the upper end of the right end stopper is lower than the left end slider, and a limited filling block is fixedly arranged on the left end wall of the right end stopper, and a limited stopper is fixedly arranged on the upper end wall on the right side of the inner cavity, which can resist the limited filling block to prevent the sliding block from completely slipping out of the inner cavity; a spacing cavity is formed between the limited filling block and the upper end wall of the inner cavity, and a guide hole is fixedly arranged on the upper end of the outer shell, through which gas can be injected into the spacing cavity, thereby pushing the sliding block to move left, and finally achieving the purpose of separating the right end stopper from the positioning convex plate.

[0007] A further configuration is that a connecting pipe connected to the guide hole is fixedly arranged at the upper end outside the shell, and the connecting pipe can be connected to an external air pump through a pipeline.

[0008] A further configuration is that the cover is fixed to the housing by screws.

[0009] The beneficial effects of the utility model are:

[0010] 1. In the utility model, a placement groove is provided for placing the auxiliary board, and the lower end of the auxiliary board is limited by a baffle; a positioning convex plate is provided on the upper end of the auxiliary board, and the positioning convex plate can be embedded in the positioning recess of the upper end seat, and then the upper end of the auxiliary board is fixed by a fixing member; thus, the teacher can write on the auxiliary board, which is very convenient.

[0011] 2. The installation and disassembly structure of the auxiliary plate is optimized in the utility model. Gas can be injected into the spacer cavity through the guide hole, which can push the sliding block to move left, so that the right end block is hidden in the inner cavity. Then, after the positioning convex plate is embedded into the positioning recess of the upper end seat, the guide hole is opened, and the reset spring pushes the right end block to move right, which can automatically squeeze out the gas in the spacer cavity. At the same time, the right end block can extend to the right of the inner cavity and block the outside of the positioning convex plate, so as to achieve the purpose of fixing the auxiliary plate. When the auxiliary plate needs to be disassembled, gas is injected into the spacer cavity through the guide hole to push the right end block to move left and separate from the positioning convex plate, so that the auxiliary plate can be disassembled quickly and conveniently.

[0012] 3. In the utility model, a connecting pipe is provided to facilitate connection with the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment;

[0014] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0015] In the figure: 11, blackboard; 12, baffle; 13, auxiliary plate; 131, positioning convex plate; 21, upper end seat; 211, positioning recess; 31, outer shell; 32, cover; 33, screw; 41, inner cavity; 42, return spring; 51, left end slider; 52, right end stopper; 61, limit filling block; 62, limit stopper; 71, spacer cavity; 72, guide hole; 73, connecting pipe. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] As attached Figure 1 and 2 As shown;

[0018] The present embodiment discloses a teaching demonstration device for teachers, comprising a blackboard 11, a baffle 12 is fixedly arranged at the lower end of the blackboard 11, a placement groove is formed between the baffle 12 and the blackboard 11, an auxiliary board 13 is placed in the placement groove, and the lower end of the auxiliary board 13 is limited by the baffle 12; an upper end seat 21 is fixedly arranged at the upper end of the blackboard 11, a square positioning recess 211 is opened below the upper end seat 21, a positioning convex plate 131 adapted to the positioning recess 211 is fixedly arranged at the upper end of the auxiliary board 13, and the positioning convex plate 131 is embedded in the positioning recess 211; a fixing member for fixing the upper end of the auxiliary board 13 is arranged on the left side of the upper end seat 21;

[0019] The fixing member includes a shell 31 fixedly arranged on the upper end seat 21, the left side of the shell 31 is closed by a cover 32, a transverse inner cavity 41 is formed inside the shell 31, and a sliding block is slidably arranged in the inner cavity 41, the sliding block is composed of a left end slider 51 and a right end stopper 52, the right end stopper 52 can extend rightward out of the inner cavity 41 and block the outer side of the positioning convex plate 131, so as to achieve the purpose of fixing the auxiliary plate 13; a return spring 42 is compressed and arranged between the left end slider 51 and the cover 32, and the return spring 42 allows the right end stopper 52 to always have a tendency to move rightward;

[0020] The right end stopper 52 is flush with the lower end of the left end slider 51, and the upper end of the right end stopper 52 is lower than the left end slider 51, and a limit filling block 61 is fixedly arranged on the left end wall of the right end stopper 52, and a limit stopper 62 is fixedly arranged on the upper end wall on the right side of the inner cavity 41, which can resist the limit filling block 61 to prevent the sliding block from completely slipping out of the inner cavity 41; a spacing cavity 71 is formed between the limit filling block 61 and the upper end wall of the inner cavity 41, and a guide hole 72 is fixedly arranged on the upper end of the outer shell 31, through which gas can be injected into the spacing cavity 71, thereby pushing the sliding block to move left, and finally achieving the purpose of separating the right end stopper 52 from the positioning protrusion 131.

[0021] A connecting pipe 73 connected to the guide hole 72 is fixedly provided at the upper end outside the housing 31 , and the connecting pipe 73 can be connected to an external air pump through a pipeline.

[0022] The cover 32 and the housing 31 are fixed together by screws 33 .

[0023] The working principle of this embodiment is:

[0024] This embodiment optimizes the installation and disassembly structure of the auxiliary plate 13. Gas can be injected into the spacer cavity 71 through the guide hole 72, thereby pushing the sliding block to move left, allowing the right end block 52 to be hidden in the inner cavity 41. Then, after the positioning convex plate 131 is embedded into the positioning recess 211 of the upper end seat 21, the guide hole 72 is opened to allow the return spring 42 to push the right end block 52 to move right, which can automatically squeeze out the gas in the spacer cavity 71. At the same time, the right end block 52 can extend rightward out of the inner cavity 41 and block the outer side of the positioning convex plate 131, thereby achieving the purpose of fixing the auxiliary plate 13. When the auxiliary plate 13 needs to be disassembled, gas is injected into the spacer cavity 71 through the guide hole 72 to push the right end block 52 to move left and separate from the positioning convex plate 131, thereby quickly and conveniently disassembling the auxiliary plate 13.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A teaching demonstration device for teachers, comprising a blackboard (11), characterized in that: A baffle (12) is fixedly provided at the lower end of the blackboard (11), a placement groove is formed between the baffle (12) and the blackboard (11), an auxiliary plate (13) is placed in the placement groove, and the lower end of the auxiliary plate (13) is limited by the baffle (12); an upper end seat (21) is fixedly provided at the upper end of the blackboard (11), a square positioning recess (211) is provided below the upper end seat (21), a positioning convex plate (131) adapted to the positioning recess (211) is fixedly provided at the upper end of the auxiliary plate (13), and the positioning convex plate (131) is embedded in the positioning recess (211); a fixing component for fixing the upper end of the auxiliary plate (13) is provided on the left side of the upper end seat (21); The fixing member comprises a shell (31) fixedly arranged on the upper end seat (21), the left side of the shell (31) is closed by a cover (32), a transverse inner cavity (41) is formed inside the shell (31), and a sliding block is slidably arranged in the inner cavity (41), the sliding block is composed of a left end slider (51) and a right end stopper (52), the right end stopper (52) can extend rightward out of the inner cavity (41) and block the outer side of the positioning convex plate (131), so as to achieve the purpose of fixing the auxiliary plate (13); a return spring (42) is compressed and arranged between the left end slider (51) and the cover (32), and the return spring (42) allows the right end stopper (52) to always have a tendency to move rightward; The right end stopper (52) is flush with the lower end of the left end slider (51), the upper end of the right end stopper (52) is lower than the left end slider (51), and a limit filling block (61) is fixedly arranged on the left end wall of the right end stopper (52), and a limit stopper (62) is fixedly arranged on the upper end wall on the right side of the inner cavity (41) to abut against the limit filling block (61) to prevent the entire sliding block from escaping from the inner cavity (41); a spacing cavity (71) is formed between the limit filling block (61) and the upper end wall of the inner cavity (41), and a guide hole (72) is fixedly arranged on the upper end of the outer shell (31), through which gas can be injected into the spacing cavity (71), thereby pushing the sliding block to move left, and finally achieving the purpose of separating the right end stopper (52) from the positioning convex plate (131).

2. A teacher teaching demonstration device according to claim 1, characterized in that: A connecting pipe (73) connected to the guide hole (72) is fixedly arranged at the upper end outside the housing (31), and the connecting pipe (73) can be connected to an external air pump through a pipeline.

3. A teacher teaching demonstration device according to claim 1, characterized in that: The sealing cover (32) and the housing (31) are fixed by screws (33).

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