CN210444477U

CN210444477U - Public address set for science and technology education

Info

Publication number: CN210444477U
Application number: CN201921305378.7U
Authority: CN
Inventors: 胥巍峰
Original assignee: Nanjing Zhigankeju Education Technology Co Ltd
Current assignee: Nanjing Zhigankeju Education Technology Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-01
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses a public address set for science and technology education, which comprises a base, universal wheels are installed on two sides of the bottom of the base, a public address body is arranged above the base, a buffer board is fixedly connected to the bottom of the public address body, slide bars are fixedly connected to the upper surface of the base below two sides of the buffer board, the upper ends of the slide bars pass through the buffer board and are connected with a limiting plate, a first spring is sleeved outside the slide bars below the buffer board, and a plurality of shock absorbing pieces are arranged between the two slide bars; an electric wire is fixedly connected to the lower part of one side of the loudspeaker body, and one end, far away from the loudspeaker body, of the electric wire is connected with a microphone; a fixed ring is fixedly connected to one side of the loudspeaker body above the electric wire, a connecting cylinder is fixedly connected to one side of the fixed ring close to the loudspeaker body, a movable rod is arranged at one end of the connecting cylinder far away from the loudspeaker body, one end of the movable rod is inserted into the connecting cylinder, the other end of the movable rod is connected with an arc-shaped pressing plate, and a third spring is sleeved outside the movable rod; the problem that the loudspeaker is damaged easily due to large vibration amplitude of the moving device is effectively solved.

Description

Public address set for science and technology education

Technical Field

The utility model relates to a public address set technical field specifically is a public address set for science and technology education.

Background

The public address device for science and technology education is mainly used for a megaphone for teaching, the voice of a person giving lessons is easily injured in long-time teaching, discomfort can be caused, the public address device for teaching can be used for improving the teaching quality in order to better transfer teaching contents without influencing the normal listening of the person to be taught, and the voice can be effectively protected at the same time; in addition, the microphone is directly placed on the loudspeaker body in the moving process, so that the microphone is easy to roll and fall off, the microphone is damaged, and the teaching quality is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a public address set for science and technology education to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the sound amplifying device for scientific and technological education comprises a base, universal wheels are mounted on two sides of the bottom of the base, a sound amplifier body is arranged above the base, a buffer plate is fixedly connected to the bottom of the sound amplifier body, slide rods are fixedly connected to the upper surface of the base below two sides of the buffer plate, the upper ends of the slide rods penetrate through the buffer plate and are connected with a limiting plate, a first spring is sleeved outside the slide rods below the buffer plate, and a plurality of shock absorbing pieces are arranged between the two slide rods;

an electric wire is fixedly connected to the lower portion of one side of the loudspeaker body, and a microphone is connected to one end, far away from the loudspeaker body, of the electric wire; one side of megaphone body has the retainer plate in the top rigid coupling of electric wire, and one side rigid coupling that the retainer plate is close to the megaphone body has the connecting cylinder, and the one end that the megaphone body was kept away from to the connecting cylinder is equipped with the movable rod, and the connecting cylinder is inserted to the one end of movable rod, and the other end is connected with the arc clamp plate, and the outside cover of movable rod is equipped with the third spring.

Preferably, a plurality of the shock absorbing parts are arranged at equal intervals, each shock absorbing part comprises a sleeve, a sleeve shaft and a second spring, the sleeves are fixedly connected with the base, one end of each second spring is fixedly connected with the inside of each sleeve, the other end of each second spring is fixedly connected with the sleeve shaft, and one end, far away from the second spring, of each sleeve shaft penetrates through the sleeves and is fixedly connected with the buffer plate.

Preferably, one side of the base, which is far away from the electric wire, is fixedly connected with a fixed cylinder, a movable column is arranged in the fixed cylinder, and a handle is arranged at the top end of the movable column.

Preferably, the upper portion of a fixed section of thick bamboo is equipped with the fixed orifices, is equipped with a plurality of movable holes on the removal post, and the fixed orifices corresponds and the specification is unanimous with the movable hole position, passes through fixing bolt fixed connection between fixed orifices and the movable hole.

Preferably, the third spring is positioned between the connecting cylinder and the arc-shaped pressure plate.

Preferably, one side of the loudspeaker body is fixedly connected with a connecting rod between the electric wire and the fixing ring, and one end, far away from the loudspeaker body, of the connecting rod is connected with the roller.

Preferably, the front surface of the loudspeaker body is provided with a sound outlet hole, and a dust screen is arranged inside the sound outlet hole; the loudspeaker comprises a loudspeaker body and is characterized in that supporting blocks are fixedly connected to two sides of the upper surface of the loudspeaker body, and rain baffles are transversely and fixedly connected to the upper ends of the two supporting blocks.

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

1. the utility model discloses a be equipped with slide bar, limiting plate, first spring and shock attenuation piece, it is big effectively to have solved amplitude of vibration in the public address set removes, easily leads to the problem that the megaphone body damaged.

2. The utility model effectively solves the problem that the microphone is easy to drop during moving by arranging the fixed ring, the connecting cylinder, the movable rod and the third spring; through being equipped with connecting rod and cylinder, when public address set did not use, can be neatly twined the electric wire on the cylinder, it is pleasing to the eye to look, also can prevent to be stumbled by the condition emergence of electric wire.

3. The utility model is provided with the fixed cylinder, the movable column, the handle, the fixed hole and the movable hole, so that the push-pull height of the handle can be changed, and the utility model is suitable for teachers with different heights; the universal wheels are arranged, so that the movement is convenient; through being equipped with the supporting shoe and keeping off the rain board, effectively solved for the science and technology education megaphone and met rainy day rainwater and get into the inside problem that leads to the megaphone short circuit of megaphone.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partially enlarged structure of the present invention;

FIG. 3 is a schematic structural view of the middle shock absorbing member of the present invention;

fig. 4 is a schematic top view of the fixing ring of the present invention.

In the figure: 1. a base; 2. a universal wheel; 3. a loudspeaker body; 4. a buffer plate; 5. a slide bar; 6. a limiting plate; 7. a first spring; 8. a shock absorbing member; 81. a sleeve; 82. a sleeve shaft; 83. a second spring; 9. a fixed cylinder; 10. moving the column; 11. a handle; 12. a fixing hole; 13. a movable hole; 14. an electric wire; 15. a microphone; 16. a stationary ring; 17. a connecting cylinder; 18. a movable rod; 19. an arc-shaped pressing plate; 20. a third spring; 21. a connecting rod; 22. a drum; 23. a sound outlet hole; 24. a dust screen; 25. a support block; 26. a rain shield.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a public address set for science and technology education, includes base 1, universal wheel 2 is installed to 1 bottom both sides of base, and the top of base 1 is equipped with megaphone body 3, and the bottom rigid coupling of megaphone body 3 has buffer board 4, slide bar 5 is all rigid coupled below buffer board 4 both sides on 1 upper surface of base, and the upper end of slide bar 5 passes buffer board 4 and is connected with limiting plate 6, the outside of slide bar 5 is overlapped below buffer board 4 and is equipped with first spring 7, is equipped with a plurality of shock attenuation pieces 8 between two slide bars 5;

an electric wire 14 is fixedly connected to the lower part of one side of the loudspeaker body 3, and a microphone 15 is connected to one end, far away from the loudspeaker body 3, of the electric wire 14; one side of megaphone body 3 has retainer plate 16 in the top rigid coupling of electric wire 14, and one side rigid coupling that retainer plate 16 is close to megaphone body 3 has a connecting cylinder 17, and the one end that loudspeaker body 3 was kept away from to connecting cylinder 17 is equipped with movable rod 18, and connecting cylinder 17 is inserted to the one end of movable rod 18, and the other end is connected with arc clamp plate 19, and the outside cover of movable rod 18 is equipped with third spring 20.

Preferably, a plurality of the shock absorbing members 8 are arranged at equal intervals, each shock absorbing member 8 comprises a sleeve 81, a sleeve shaft 82 and a second spring 83, the sleeve 81 is fixedly connected with the base 1, one end of the second spring 83 is fixedly connected with the inside of the sleeve 81, the other end of the second spring 83 is fixedly connected with the sleeve shaft 82, and one end of the sleeve shaft 82 far away from the second spring 83 penetrates through the sleeve 81 to be fixedly connected with the buffer plate 4.

Preferably, a fixed cylinder 9 is fixedly connected to one side of the base 1 away from the electric wire 14, a movable column 10 is arranged in the fixed cylinder 9, and a handle 11 is arranged at the top end of the movable column 10.

Preferably, the upper portion of the fixed cylinder 9 is provided with a fixed hole 12, the movable column 10 is provided with a plurality of movable holes 13, the fixed hole 12 corresponds to the movable holes 13 in position and has the same specification, and the fixed hole 12 is fixedly connected with the movable holes 13 through fixed bolts.

Preferably, the third spring 20 is located between the connecting cylinder 17 and the arc-shaped pressure plate 19.

Preferably, a connecting rod 21 is fixedly connected between the electric wire 14 and the fixing ring 16 on one side of the microphone body 3, and a roller 22 is connected to one end of the connecting rod 21 far away from the microphone body 3.

Preferably, the front surface of the loudspeaker body 3 is provided with a sound outlet hole 23, and a dust screen 24 is arranged inside the sound outlet hole 23; two sides of the upper surface of the loudspeaker body 3 are fixedly connected with supporting blocks 25, and the upper ends of the two supporting blocks 25 are transversely and fixedly connected with rain baffles 26.

The working principle is as follows: when the handle is used, the push-pull height of the handle 11 is changed by moving the movable column 10, during moving, firstly, the fixing bolt between the fixed hole 12 and the movable hole 13 is rotationally disassembled, then the position of the movable column 10 is adjusted up and down, at the moment, the fixed hole 12 corresponds to one movable hole 13, then, the fixed hole 12 is fixedly connected with the movable hole 13 through the fixing bolt, and further, the movable column 10 is fixed with the fixed cylinder 9, so that the push-pull height of the handle 11 can be changed, and the handle is suitable for teachers with different heights; then, the universal wheel 2 is moved through the push-pull handle 11 to push the device to a specified teaching place, the device is convenient to move, in the moving process, the loudspeaker body 3 jolts to generate vibration, the buffer plate 4 is downwards extruded, the buffer plate 4 slides on the sliding rod 5 to extrude the first spring 7 and the sleeve shaft 82 in the damping piece 8, and further the first spring 7 and the second spring 83 deform, the damping effect is achieved, and the problem that the loudspeaker body 3 is easily damaged due to large vibration amplitude in the moving process of the loudspeaker device is effectively solved; during moving, the microphone 15 is placed in the fixed ring 16, when the microphone 15 is placed, the arc-shaped pressing plate 19 is extruded, so that the arc-shaped pressing plate 19 moves towards the direction close to the loudspeaker body 3, then the microphone 15 enters the fixed ring 16 from the bottom of the fixed ring 16, then the arc-shaped pressing plate 19 is loosened, and the arc-shaped pressing plate 19 stably clamps the microphone 15 in the fixed ring 16 under the elastic action of the third spring 20, so that the problem that the microphone 15 is easy to fall off during moving is effectively solved; the problem that rainwater enters the loudspeaker in rainy days to cause short circuit of the loudspeaker in the loudspeaker for scientific and technological education is effectively solved by arranging the supporting block 25 and the rain baffle 26; by providing the connecting rod 21 and the drum 22, the electric wire 14 can be wound around the drum 22 in order when the speaker is not in use, so that the appearance is beautiful and the occurrence of tripping over the electric wire 14 can be prevented.

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

Claims

1. The public address device for scientific and technological education is characterized by comprising a base (1), universal wheels (2) are installed on two sides of the bottom of the base (1), a public address body (3) is arranged above the base (1), a buffer plate (4) is fixedly connected to the bottom of the public address body (3), sliding rods (5) are fixedly connected to the upper surface of the base (1) below two sides of the buffer plate (4), the upper ends of the sliding rods (5) penetrate through the buffer plate (4) to be connected with a limiting plate (6), a first spring (7) is sleeved outside the sliding rods (5) below the buffer plate (4), and a plurality of shock absorbing pieces (8) are arranged between the two sliding rods (5);

an electric wire (14) is fixedly connected to the lower portion of one side of the loudspeaker body (3), and a microphone (15) is connected to one end, far away from the loudspeaker body (3), of the electric wire (14); one side of megaphone body (3) has retainer plate (16) in the top rigid coupling of electric wire (14), and one side rigid coupling that retainer plate (16) are close to megaphone body (3) has connecting cylinder (17), and the one end that megaphone body (3) were kept away from in connecting cylinder (17) is equipped with movable rod (18), and connecting cylinder (17) are inserted to the one end of movable rod (18), and the other end is connected with arc clamp plate (19), and the outside cover of movable rod (18) is equipped with third spring (20).

2. The public address set for scientific and technical education as set forth in claim 1, wherein: a plurality of shock-absorbing members (8) are arranged at equal intervals, each shock-absorbing member (8) comprises a sleeve (81), a sleeve shaft (82) and a second spring (83), the sleeve (81) is fixedly connected with the base (1), one end of each second spring (83) is fixedly connected with the inside of the sleeve (81), the other end of each second spring is fixedly connected with the corresponding sleeve shaft (82), and one end, far away from the corresponding second spring (83), of each sleeve shaft (82) penetrates through the corresponding sleeve (81) and is fixedly connected with the corresponding buffer plate (4).

3. The public address set for scientific and technical education as set forth in claim 1, wherein: one side of the base (1) far away from the electric wire (14) is fixedly connected with a fixed cylinder (9), a movable column (10) is arranged in the fixed cylinder (9), and a handle (11) is arranged at the top end of the movable column (10).

4. A microphone device for scientific and technical education according to claim 3, wherein: the upper portion of a fixed cylinder (9) is provided with a fixed hole (12), a plurality of movable holes (13) are formed in a movable column (10), the fixed hole (12) corresponds to the movable holes (13) in position and is consistent in specification, and the fixed hole (12) is fixedly connected with the movable holes (13) through fixing bolts.

5. The public address set for scientific and technical education as set forth in claim 1, wherein: the third spring (20) is positioned between the connecting cylinder (17) and the arc-shaped pressing plate (19).

6. The public address set for scientific and technical education as set forth in claim 1, wherein: one side of the loudspeaker body (3) is fixedly connected with a connecting rod (21) between the electric wire (14) and the fixing ring (16), and one end, far away from the loudspeaker body (3), of the connecting rod (21) is connected with a roller (22).

7. The public address set for scientific and technical education as set forth in claim 1, wherein: a sound outlet hole (23) is formed in the front face of the loudspeaker body (3), and a dust screen (24) is arranged in the sound outlet hole (23); the loudspeaker is characterized in that supporting blocks (25) are fixedly connected to two sides of the upper surface of the loudspeaker body (3), and rain baffles (26) are transversely and fixedly connected to the upper ends of the two supporting blocks (25).