Self-locking speech teaching device with rotation adjustment function

Abstract

The utility model relates to the technical field of teaching, in particular to a speech teaching device with a rotation adjusting self-locking function. The speech teaching device with the rotary adjusting self-locking function comprises a base and a telescopic rod, lifting grooves are formed in the two sides of the upper portion of the telescopic rod, a lower cavity is formed in the side, close to the lower portions of the lifting grooves, of the upper portion of the telescopic rod, and an upper cavity is formed in the position, close to the upper portion of the lower cavity, of the upper portion of the telescopic rod. An outer cylinder is further connected between the upper cavity and the lower cavity of the telescopic rod, cylinder grooves are formed in the outer side of the circumference of the outer cylinder, a stretching hole is formed in the top of the telescopic rod, and self-locking assemblies are arranged in the upper cavity and the lower cavity of the telescopic rod. Through mutual cooperation of the self-locking assembly and the rocking bar, a teacher can conveniently adjust the inclination angle of the speech plate, and through elasticity of the spring assembly, the upper clamping ring and the lower clamping ring are driven to move in the same direction to lock the rotating disc.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching, in particular to a speech teaching device with a rotation adjustment and self-locking function. Background Art

[0002] For example, patent number 201920362942.2, the patent name is a device for publicity and education of natural resource assets, including a publicity and education board, a first embedding groove is opened on one side edge of the publicity and education board near the front position of the publicity and education board, a first auxiliary display board is embedded and connected inside the first embedding groove, and a second embedding groove is opened on the other side edge of the publicity and education board near the back position of the publicity and education board, a second auxiliary display board is embedded and installed inside the second embedding groove, and the bottom ends and the middle parts of the top ends of the first auxiliary display board and the second auxiliary display board are fixedly bonded with fastening rubber strips. The structure of the utility model is scientific and reasonable, and it is safe and convenient to use. Through the first embedding groove, the first auxiliary display board, the second embedding groove, the second auxiliary display board and the fastening rubber strip, the auxiliary display function can be added on the basis of the display of the publicity and education board, so that people can display more learning content when studying, so as to facilitate the rapid learning of learners.

[0003] However, the existing lecture boards are relatively simple, and it is not convenient for teachers to adjust the inclination angle of the lecture board, resulting in students being unable to clearly see the teaching content on the lecture board. At the same time, they do not have a self-locking function, so teachers need to spend time supporting and fixing the adjusted lecture board, thereby wasting teachers' lecture time and reducing lecture efficiency. Utility Model Content

[0004] In order to overcome the shortcomings, the technical problem to be solved is: to provide a speech teaching device with a rotation adjustment self-locking.

[0005] The technical solution of the utility model is: a self-locking lecture teaching device with rotation adjustment, comprising a base and a telescopic rod, the top of the base is connected to the telescopic rod, both sides of the upper part of the telescopic rod are provided with lifting grooves, the upper part of the telescopic rod near the lower part of the lifting groove is provided with a lower cavity, the upper part of the telescopic rod near the upper part of the lower cavity is provided with an upper cavity, an outer cylinder is connected between the upper cavity and the lower cavity of the telescopic rod, the outer side of the circumference of the outer cylinder is provided with cylinder grooves, a stretching hole is provided on the top of the telescopic rod, self-locking components are provided in the upper cavity and the lower cavity of the telescopic rod, and an adjustment component is provided inside the self-locking component.

[0006] As a preferred technical solution of the utility model, the self-locking component includes a pull rod, a first gear, a lifting bar, a spring assembly, the upper part of the pull rod is embedded in the stretching hole of the telescopic rod and slides back and forth, both sides of the lower part of the pull rod are connected to double-sided rack plates, the bottom of the pull rod is connected to an upper clamping ring, both sides of the double-sided rack plates are connected to the first gear, and the other end of the first gear away from the double-sided rack plates is connected to the lifting bar.

[0007] As an optimal technical solution of the utility model, both ends of the lifting bar head are connected to upper rack plates, the bottom of the lifting bar is connected to a lower pressure plate, the other end of the lower part of the lifting bar away from the lower pressure plate is connected to a lower clamping ring, and the bottom of the lower pressure plate is connected to a spring assembly.

[0008] As a preferred technical solution of the utility model, the adjustment component includes a turntable, a rocker, a speech board, a first blackboard and a second blackboard. The turntable is embedded in the outer cylinder and rotates. One side of the turntable is connected to a turnbar, the other end of the turntable away from the turnbar is connected to a rocker, the other end of the turnbar away from the turntable is connected to the speech board, and the first blackboard and the second blackboard are arranged crosswise on the inner side of the speech board.

[0009] As a preferred technical solution of the utility model, a horizontal groove is provided in the middle of one side of the speech board, and upper and lower sliding grooves are provided at both upper and lower ends of the speech board.

[0010] As a preferred technical solution of the utility model, one side of the first blackboard is connected with a connecting rod, and the connecting rod of the first blackboard is embedded in the horizontal groove of the lecture board and slides, and the other end of the connecting rod is connected with a frame rack plate.

[0011] As a preferred technical solution of the utility model, the upper and lower ends of the second blackboard are connected with a plurality of trapezoidal connecting plates, and the trapezoidal connecting plates of the second blackboard are embedded in the upper and lower sliding grooves of the lecture board for sliding, and the other end of the trapezoidal connecting plates is connected with a movable rack plate, and a second gear is also provided between the movable rack plate and the frame rack plate.

[0012] The beneficial effects are: 1. The self-locking component cooperates with the rocker to facilitate the teacher to adjust the tilt angle of the speech board, and the upper clamp ring and the lower clamp ring are driven by the elasticity of the spring component itself to move in the same direction to lock the turntable, which is convenient for self-locking the adjusted speech board, shortening the time for teachers to adjust the speech board and improving convenience.

[0013] 2. The outer frame rack plate and the movable rack plate cooperate with each other, so that the teacher can conveniently exchange the positions of the two blackboards on the lecture board and give explanations and teaching on the blackboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the lecture device of the present utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the self-locking component of the utility model.

[0016] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the self-locking component of the utility model.

[0017] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the adjustment component of the utility model.

[0018] Parts names and serial numbers in the figure: 1_base, 2_telescopic rod, 2101_lifting slot, 2102_lower chamber, 2103_outer cylinder, 2104_cylinder slot, 2105_stretching hole, 2106_upper chamber, 3_self-locking assembly, 31_pull rod, 3101_double-sided rack plate, 3102_upper clamp ring, 32_first gear, 33_lifting bar, 3301_upper rack plate, 3302_lower Clamp ring, 3303_lower pressure plate, 34_spring assembly, 4_adjustment assembly, 41_turntable, 4101_rotating rod, 42_rocker, 43_lecture board, 4301_horizontal groove, 4302_upper and lower slide grooves, 44_first blackboard, 4401_connecting rod, 4402_frame rack plate, 45_second blackboard, 4501_trapezoidal connecting plate, 4502_movable rack plate, 46_second gear. DETAILED DESCRIPTION

[0019] The utility model is described in detail below in conjunction with the accompanying drawings.

[0020] Example 1

[0021] like Figure 1-Figure 4 As shown, a self-locking lecture teaching device with rotation adjustment includes a base 1 and a telescopic rod 2, the top of the base 1 is connected to the telescopic rod 2, both sides of the upper part of the telescopic rod 2 are provided with lifting grooves 2101, a lower cavity 2102 is provided on the upper part of the telescopic rod 2 near the lower part of the lifting groove 2101, an upper cavity 2106 is provided on the upper part of the telescopic rod 2 near the upper part of the lower cavity 2102, an outer cylinder 2103 is connected between the upper cavity 2106 and the lower cavity 2102 of the telescopic rod 2, and cylinder grooves 2104 are provided on the outer side of the circumference of the outer cylinder 2103, a stretching hole 2105 is provided on the top of the telescopic rod 2, and a self-locking component 3 is provided in the upper cavity 2106 and the lower cavity 2102 of the telescopic rod 2, and an adjustment component 4 is provided inside the self-locking component 3.

[0022] The self-locking component 3 includes a pull rod 31, a first gear 32, a lifting bar 33, a spring assembly 34, and the upper part of the pull rod 31 is embedded in the stretching hole 2105 of the telescopic rod 2 to slide back and forth. Both sides of the lower part of the pull rod 31 are connected to double-sided rack plates 3101, and the bottom of the pull rod 31 is connected to an upper clamping ring 3102. Both sides of the double-sided rack plates 3101 are connected to the first gear 32, and the other end of the first gear 32 away from the double-sided rack plates 3101 is connected to the lifting bar 33.

[0023] The two ends of the head of the lifting bar 33 are connected to the upper rack plate 3301, the bottom of the lifting bar 33 is connected to the lower pressure plate 3303, the other end of the lower part of the lifting bar 33 away from the lower pressure plate 3303 is connected to the lower clamping ring 3302, and the bottom of the lower pressure plate 3303 is connected to the spring assembly 34.

[0024] The adjusting component 4 comprises a turntable 41, a rocker 42, a lecture board 43, a first blackboard 44 and a second blackboard 45. The turntable 41 is embedded in the outer cylinder 2103 and rotates. A turntable 41 is connected to one side of the turntable 41 with a turn rod 4101, and the other end of the turntable 41 away from the turn rod 4101 is connected to the rocker 42. The other end of the turntable 4101 away from the turntable 41 is connected to the lecture board 43. The first blackboard 44 and the second blackboard 45 are arranged crosswise on the inner side of the lecture board 43.

[0025] A horizontal groove 4301 is formed in the middle of one side of the lecture board 43 , and upper and lower sliding grooves 4302 are formed at both the upper and lower ends of the lecture board 43 .

[0026] One side of the first blackboard 44 is connected with a connecting rod 4401 , and the connecting rod 4401 of the first blackboard 44 is embedded in the horizontal groove 4301 of the lecture board 43 to slide, and the other end of the connecting rod 4401 is connected with a frame rack plate 4402 .

[0027] The upper and lower ends of the second blackboard 45 are connected with a plurality of trapezoidal connecting plates 4501, and the trapezoidal connecting plates 4501 of the second blackboard 45 are embedded in the upper and lower sliding grooves 4302 of the lecture board 43 for sliding, and the other end of the trapezoidal connecting plates 4501 is connected with a movable rack plate 4502, and a second gear 46 is also provided between the movable rack plate 4502 and the frame rack plate 4402.

[0028] When the teacher needs to give a speech, he or she can first adjust the height of the speech board 43 through the telescopic rods 2 at both ends of the bottom, so as to adapt to different teachers' heights. When the teacher needs to adjust the inclination of the speech board 43, the teacher can hold the pull rod 31 with his or her left hand and pull it upward, so that the upper part of the pull rod 31 moves upward along the stretching hole 2105 of the telescopic rod 2, and while the pull rod 31 moves, it also drives the double-sided rack plates 3101 and the upper clamp ring 3102 to move upward, so that the double-sided rack plates 3101 move upward and mesh with the first gear 32. While the first gear 32 meshes and rotates, it also meshes with the upper rack plate 3301, thereby driving the lifting bar 3101 to rotate upward. 3 and the lower clamp ring 3302 and the lower pressure plate 3303 move downward to squeeze the bottom spring assembly 34, and as the pull rod 31 continues to move upward, the upper clamp ring 3102 and the lower clamp ring 3302 are pulled out from the cylinder grooves 2104 at both ends of the outer cylinder 2103. After the turntable 41 is self-locked and opened, the teacher can hold the rocker 42 with his right hand to rotate it. The rotation of the rocker 42 drives the rotating rod 4101 and the speech board 43 to rotate together to adjust the inclination of the speech board 43. After adjusting the appropriate angle, the pull rod 31 is released, and the upper clamp ring 3102 and the lower clamp ring 3302 are driven by the elasticity of the spring assembly 34 itself to move in the same direction to lock the turntable 41 again.

[0029] In addition, when the teacher needs to swap the positions of the first blackboard 44 and the second blackboard 45 during a speech, the teacher can hold the first blackboard 44 and pull it to one side, so that the first blackboard 44 drives the connecting rod 4401 and the outer frame rack plate 4402 to move along the horizontal groove 4301 of the speech board 43, and the outer frame rack plate 4402 moves while it also meshes with the second gear 46, so that the second gear 46 rotates while it also meshes with the movable rack plate 4502, thereby driving the second blackboard 45 and the trapezoidal connecting plate 4501 to move along the upper and lower slide grooves 4302 of the speech board 43, so that the first blackboard 44 and the second blackboard 45 move toward each other, thereby making it convenient for the teacher to swap and adjust the positions of the two blackboards and convenient for the teacher to explain and teach on the blackboard.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A lecture teaching device with a rotation adjustment and self-locking function, characterized in that: The invention comprises a base (1) and a telescopic rod (2), wherein the top of the base (1) is connected to the telescopic rod (2), both sides of the upper part of the telescopic rod (2) are provided with lifting grooves (2101), a lower cavity (2102) is provided on the upper part of the telescopic rod (2) close to the lower part of the lifting groove (2101), an upper cavity (2106) is provided on the upper part of the telescopic rod (2) close to the upper part of the lower cavity (2102), an outer cylinder (2103) is connected between the upper cavity (2106) and the lower cavity (2102) of the telescopic rod (2), the outer side of the outer cylinder (2103) is provided with cylinder grooves (2104), a stretching hole (2105) is provided on the top of the telescopic rod (2), a self-locking component (3) is provided in the upper cavity (2106) and the lower cavity (2102) of the telescopic rod (2), and an adjusting component (4) is provided inside the self-locking component (3).

2. A lecture teaching device with rotation adjustment and self-locking as claimed in claim 1, characterized in that: The self-locking assembly (3) comprises a pull rod (31), a first gear (32), a lifting bar (33), a spring assembly (34), and an upper portion of the pull rod (31) is embedded in a stretching hole (2105) of the telescopic rod (2) and slides back and forth. Both sides of the lower part of the pull rod (31) are connected to the double-sided rack plate (3101), the bottom of the pull rod (31) is connected to the upper clamp ring (3102), and both sides of the double-sided rack plate (3101) are connected to the first gear (32). The other end of (32) away from the double-sided rack plate (3101) is connected with a lifting bar (33).

3. A lecture teaching device with rotation adjustment and self-locking as claimed in claim 2, characterized in that: Both ends of the head of the lifting bar (33) are connected to an upper rack plate (3301), the bottom of the lifting bar (33) is connected to a lower pressure plate (3303), the other end of the lower part of the lifting bar (33) away from the lower pressure plate (3303) is connected to a lower clamping ring (3302), and the bottom of the lower pressure plate (3303) is connected to a spring assembly (34).

4. A lecture teaching device with rotation adjustment and self-locking as claimed in claim 1, characterized in that: The adjustment component (4) comprises a turntable (41), a rocker (42), a lecture board (43), a first blackboard (44) and a second blackboard (45); the turntable (41) is embedded in the outer cylinder (2103) and rotates; one side of the turntable (41) is connected to a turnbar (4101); the other end of the turntable (41) away from the turnbar (4101) is connected to the rocker (42); the other end of the turnbar (4101) away from the turntable (41) is connected to the lecture board (43); the first blackboard (44) and the second blackboard (45) are arranged crosswise on the inner side of the lecture board (43).

5. A lecture teaching device with rotation adjustment and self-locking as claimed in claim 4, characterized in that: A horizontal groove (4301) is provided in the middle of one side of the lecture board (43), and upper and lower sliding grooves (4302) are provided at both upper and lower ends of the lecture board (43).

6. A lecture teaching device with rotation adjustment and self-locking as claimed in claim 4, characterized in that: One side of the first blackboard (44) is connected with a connecting rod (4401), and the connecting rod (4401) of the first blackboard (44) is embedded in the horizontal groove (4301) of the lecture board (43) for sliding, and the other end of the connecting rod (4401) is connected with a frame rack plate (4402).

7. A lecture teaching device with rotation adjustment and self-locking as claimed in claim 4, characterized in that: The upper and lower ends of the second blackboard (45) are connected to a plurality of trapezoidal connecting plates (4501), and the trapezoidal connecting plates (4501) of the second blackboard (45) are embedded in the upper and lower sliding grooves (4302) of the lecture board (43) for sliding, and the other end of the trapezoidal connecting plates (4501) is connected to a movable rack plate (4502), and a second gear (46) is also provided between the movable rack plate (4502) and the frame rack plate (4402).

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