CN207677988U - A kind of multi-functional education and instruction public address set - Google Patents

Abstract

The utility model discloses a kind of multi-functional education and instruction public address sets, including babinet, the lower surface of the cabinet wall is fixedly connected with loudspeaker, it is provided with fixed plate in the babinet, the upper surface of the fixed plate is fixedly connected with support board, the upper surface of the support board offers the first sliding groove, the left side of the first sliding groove inner wall is fixedly connected by telescopic device with the left side of sliding block, the upper surface of the sliding block is fixedly connected with movable block, and the left side of the movable block offers second sliding slot.The multi-functional education and instruction public address set, pass through the mutual cooperation between the first in command, the second shaft, second bevel gear, first bevel gear, first rotating shaft, threaded post, thread cap, movable plate, fixed link, pulley, movable block, second sliding slot, slide bar, sliding sleeve, telescopic rod and spring, so that public address set has multiple functions, so that teacher can carry babinet saying class hour, to facilitate the work of teacher.

Description

A kind of multi-functional education and instruction public address set

Technical field

The utility model is related to instructional technology field, specially a kind of multi-functional education and instruction public address set.

Background technology

Teaching is the distinctive personnel training activity of a kind of mankind that the religion of teacher and student are formed.Pass through this work Dynamic, teacher is purposeful, planned and organized ground guiding student learns and grasps cultural and technical knowledge and technical ability, promotes student's element Matter improves, them is made to become the required people of society.

In teaching, in order to enable student can clearly hear the content of teacher's explanation, public address set is usually utilized It is explained, but most public address set is all integrally fixed on lectern, teacher, which once leaves, will reduce amplifying effect, together When public address set have a single function, therefore be badly in need of a kind of multifunction teaching public address set.

Utility model content

（One）The technical issues of solution

In view of the deficiencies of the prior art, the utility model provides a kind of multi-functional education and instruction public address set, solves In teaching, in order to enable student can clearly hear the content of teacher's explanation, usually said using public address set Solution, but most public address set is all integrally fixed on lectern, teacher, which once leaves, will reduce amplifying effect, amplify simultaneously Apparatus function is single, therefore the problem of a kind of multifunction teaching public address set of urgent need.

（Two）Technical solution

To achieve the above object, the utility model provides the following technical solutions：A kind of multi-functional education and instruction amplifies dress It sets, including babinet, the lower surface of the cabinet wall is fixedly connected with loudspeaker, and fixed plate is provided in the babinet, described The upper surface of fixed plate is fixedly connected with support board, and the upper surface of the support board offers the first sliding groove, the first sliding groove The left side of inner wall is fixedly connected by telescopic device with the left side of sliding block, and the upper surface of the sliding block is fixedly connected with activity The left side of block, the movable block offers second sliding slot, and pulley, a left side for the pulley are slidably connected in the second sliding slot End is fixedly connected with the right side of movable plate, the lower surface of the movable plate be fixedly connected there are two fixed link, and two fixations The opposite face of bar is fixedly connected with the left and right sides of thread cap respectively, and the thread cap internal thread is connected with threaded post, described The bottom end of threaded post is fixedly connected with first rotating shaft, and the surface of the first rotating shaft is socketed with first bearing, the first bearing It is connected to the upper surface of fixed plate, the surface of the first rotating shaft is connected with first bevel gear, the first bevel gear and second Bevel gear engages, and the left side of the second bevel gear is fixedly connected with driving device, and the surface of the driving device is socketed with Second bearing, the second bearing are connected to the left side of babinet, and the left side of the movable plate is fixedly connected with sliding sleeve, described Slide bar is socketed in sliding sleeve, the both ends of the slide bar are fixedly connected with the upper surface of the upper surface of cabinet wall and baffle respectively, The left side of the baffle is fixedly connected with the left side of cabinet wall, and the front of the babinet is provided with cover board, the cover board Front be fixedly connected with second handle, the left side of the cover board is fixedly connected by hinge with the front of babinet, the case The front position corresponding with cover board of body offers opening, and the upper surface of the babinet is fixedly connected with handle, the babinet Lower surface be fixedly connected with support leg.

Preferably, the telescopic device includes telescopic rod and is socketed in the spring on telescopic rod surface, in the first sliding groove The left side of wall is fixedly connected by telescopic rod and spring with the left side of sliding block.

Preferably, the driving device includes the first in command, and the right side of the first in command passes through the second shaft and the The left side of two bevel gears is fixedly connected, and second shaft is socketed in second bearing.

Preferably, the quantity of the support leg is four, and four support legs are located at the four corners of babinet lower surface.

Preferably, the shape of the first in command is L-shaped, and the first in command is located at outside babinet.

Preferably, the front of the babinet is provided with ventilated net, and the ventilated net is located at the lower section of cover board.

（Three）Advantageous effect

The utility model provides a kind of multi-functional education and instruction public address set, has following advantageous effect：

（1）, the multi-functional education and instruction public address set, pass through the first in command, the second shaft, second bevel gear, first Bevel gear, threaded post, thread cap, movable plate, fixed link, pulley, movable block, second sliding slot, slide bar, sliding sleeve, stretches at first rotating shaft Mutual cooperation between contracting bar and spring carries the utility model when teacher needs using the utility model by handle, from And be convenient for carrying, when teacher needs object being fixed in babinet, object is placed on support board, rotates clockwise first Handle so that the first in command drives second bevel gear to rotate by the second shaft, and second bevel gear drives first bevel gear rotation, First bevel gear drives threaded post rotation by first rotating shaft so that thread cap drives under the threaded connection effect with threaded post Movable plate moves down, while movable plate is moved down by pulley along second sliding slot, and movable block is pressed against by pulley It moves right, movable block is moved right by sliding block along the first sliding groove, and simultaneous retractable bar and spring are stretched by the pulling force of sliding block It is long, to achieve the purpose that fixed object so that public address set has multiple functions, so that teacher is saying that class hour can be with Body carries babinet, to facilitate the work of teacher.

（2）, the multi-functional education and instruction public address set, pass through the phase between first rotating shaft, first bearing and threaded post Mutually cooperation so that first rotating shaft rotates more steady in first bearing, so that first rotating shaft drives threaded post rotation It is more steady.

（3）, the multi-functional education and instruction public address set, pass through the mutual cooperation between the first sliding groove and sliding block so that It is more steady when sliding block moves left and right in the first sliding groove, so that movable block is moved left and right by sliding block along the first sliding groove Shi Gengjia is steady, and the utility model which has a compact structure and a reasonable design, highly practical.

Description of the drawings

Fig. 1 is the cross-sectional view that the utility model is faced；

Fig. 2 is the structural schematic diagram that the portions A amplify in Fig. 1；

Fig. 3 is the structural schematic diagram that the utility model is faced.

In figure：1 babinet, 2 loudspeakers, 3 fixed plates, 4 support boards, 5 the first sliding grooves, 6 telescopic devices, 61 telescopic rods, 62 bullets Spring, 7 sliding blocks, 8 movable blocks, 9 second sliding slots, 10 pulleys, 11 movable plates, 12 fixed links, 13 thread caps, 14 threaded posts, 15 first Shaft, 16 first bearings, 17 first bevel gears, 18 second bevel gears, 19 second bearings, 20 driving devices, 201 first in command, 202 second Independent Observer Programs, 21 sliding sleeves, 22 slide bars, 23 baffles, 24 cover boards, 25 second handles, 26 hinges, 27 ventilated nets, 28 handles, 29 Support leg.

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.

As shown in Figs. 1-3, the utility model provides a kind of technical solution：A kind of multi-functional education and instruction public address set, Including babinet 1, the lower surface of 1 inner wall of babinet is fixedly connected with loudspeaker 2, is provided with fixed plate 3 in babinet 1, fixed plate 3 it is upper Surface is fixedly connected with support board 4, and the upper surface of support board 4 offers the first sliding groove 5, by between the first sliding groove 5 and sliding block 7 Mutual cooperation so that sliding block 7 is more steady when being moved left and right in the first sliding groove 5, so that movable block 8 passes through sliding block 7 A left side more steady when being moved left and right along the first sliding groove 5, that the left side of 5 inner wall of the first sliding groove passes through telescopic device 6 and sliding block 7 Side is fixedly connected, and telescopic device 6 includes telescopic rod 61 and the spring 62 for being socketed in 61 surface of telescopic rod, 5 inner wall of the first sliding groove Left side be fixedly connected with the left side of sliding block 7 by telescopic rod 61 and spring 62, by be arranged telescopic device 6, work as teacher When needing using object, the first in command 201 is rotated counterclockwise, the first in command 201 drives second bevel gear by the second shaft 202 18 rotations, second bevel gear 18 drive first bevel gear 17 to rotate, and first bevel gear 17 drives threaded post by first rotating shaft 15 14 rotations so that thread cap 13 drives movable plate 11 to move up under the threaded connection effect with threaded post 14, while activity Plate 11 is moved up by pulley 10 along second sliding slot 9, while spring 62 pulls movable block 8 to moving to left using the pulling force of itself It moves and resets, when movable block 8 and object separation, stop operating the first in command 201, and the upper surface of sliding block 7 is fixedly connected with work The left side of motion block 8, movable block 8 offers second sliding slot 9, and pulley 10, the left end of pulley 10 are slidably connected in second sliding slot 9 It is fixedly connected with the right side of movable plate 11, by the way that second sliding slot 9 and pulley 10 is arranged so that pulley 10 is in second sliding slot 9 More steady when mobile, so that movable block 8 can be moved by the extruding of pulley 10, the lower surface of movable plate 11 is fixed There are two fixed links 12 for connection, and the opposite face of two fixed links 12 is fixedly connected with the left and right sides of thread cap 13 respectively, By the way that two fixed links 12 are arranged so that thread cap 13 can be fixed between two fixed links 12, so as to avoid thread cap 13 follow threaded post 14 to rotate together under the threaded connection effect with threaded post 14, so that threaded post 14 can be with screw thread 13 normal cooperating of cap, 13 internal thread of thread cap are connected with threaded post 14, and the bottom end of threaded post 14 is fixedly connected with first The surface of shaft 15, first rotating shaft 15 is socketed with first bearing 16, and first bearing 16 is connected to the upper surface of fixed plate 3, passes through Mutual cooperation between first rotating shaft 15, first bearing 16 and threaded post 14 so that first rotating shaft 15 turns in first bearing 16 Dynamic is more steady, so that first rotating shaft 15 drives threaded post 14 to rotate more steady, the surface card of first rotating shaft 15 It is connected to first bevel gear 17, first bevel gear 17 is engaged with second bevel gear 18, and the left side of second bevel gear 18 is fixedly connected There is driving device 20, is placed on object when teacher needs object being fixed in babinet 1 by the way that driving device 20 is arranged On support board 4, the first in command 201 is rotated clockwise so that the first in command 201 drives second bevel gear by the second shaft 202 18 rotations, second bevel gear 18 drive first bevel gear 17 to rotate, and first bevel gear 17 drives threaded post by first rotating shaft 15 14 rotations so that thread cap 13 drives movable plate 11 to move down under the threaded connection effect with threaded post 14, while activity Plate 11 is moved down by pulley 10 along second sliding slot 9, and movable block 8 is moved right by the extruding of pulley 10, and movable block 8 is logical It crosses sliding block 7 to move right along the first sliding groove 5, simultaneous retractable bar 61 and spring 62 are extended by the pulling force of sliding block 7, work as activity When block 8 is with isoelectric membrane, to achieve the purpose that fixed object, the surface of driving device 20 are socketed with second bearing 19, driving Device 20 includes the first in command 201, and the shape of the first in command 201 is L-shaped, and the first in command 201 is located at outside babinet 1, the first The right side of hand 201 is fixedly connected by the second shaft 202 with the left side of second bevel gear 18, and the second shaft 202 is socketed in In second bearing 19, pass through the mutual cooperation between second bearing 19 and the second shaft 202 so that the second shaft 202 is second What is rotated in bearing 19 is more steady, so that the drive rotation of second bevel gear 18 of the second shaft 202 is more steady, second Bearing 19 is connected to the left side of babinet 1, and the left side of movable plate 11 is fixedly connected with sliding sleeve 21, slide bar is socketed in sliding sleeve 21 22, pass through the mutual cooperation between slide bar 22 and sliding sleeve 21 so that sliding sleeve 21 is more flat when the surface of slide bar 22 moves up and down Surely, the both ends of slide bar 22 are fixedly connected with the upper surface of the upper surface of 1 inner wall of babinet and baffle 23 respectively, the left side of baffle 23 It is fixedly connected with the left side of 1 inner wall of babinet, the front of babinet 1 is provided with cover board 24, and the front of cover board 24 is fixedly connected with Second chief 25, and the left side of cover board 24 is fixedly connected by hinge 26 with the front of babinet 1, and second handle 25 and hinge 26 are passed through Between mutual cooperation so that teacher pass through second handle 25 open cover board 24 when it is more convenient, babinet 1 front with cover board 24 Corresponding position offers opening, and the upper surface of babinet 1 is fixedly connected with handle 28, by the way that handle 28 is arranged so that teacher Lift that babinet 1 is more convenient by handle 29, the lower surface of babinet 1 is fixedly connected with support leg 29, and the front of babinet 1 is provided with Ventilated net 27, ventilated net 27 are located at the lower section of cover board 24, and the quantity of support leg 29 is four, and four support legs 29 are located at The four corners of 1 lower surface of babinet, by the way that support leg 29 is arranged so that the fixation of babinet 1 is more steady.

In use, when teacher needs using the utility model, the utility model is carried by handle 28, to conveniently take Object is placed on support board 4 when teacher needs object being fixed in babinet 1, rotates clockwise the first in command by band 201 so that the first in command 201 drives second bevel gear 18 to rotate by the second shaft 202, and second bevel gear 18 drives the first cone Gear 17 rotate, first bevel gear 17 pass through first rotating shaft 15 drive threaded post 14 rotate so that thread cap 13 with threaded post 14 threaded connection effect is lower to drive movable plate 11 to move down, at the same movable plate 11 by pulley 10 along second sliding slot 9 to Lower movement, movable block 8 are moved right by the extruding of pulley 10, and movable block 8 is moved right by sliding block 7 along the first sliding groove 5, Simultaneous retractable bar 61 and spring 62 are extended by the pulling force of sliding block 7, when movable block 8 and isoelectric membrane so that the first in command 201 stop operating, and to achieve the purpose that fixed object, when teacher needs using object, rotate counterclockwise the first in command 201, the first in command 201 drives second bevel gear 18 to rotate by the second shaft 202, and second bevel gear 18 drives first bevel gear 17 rotation, first bevel gear 17 pass through first rotating shaft 15 drive threaded post 14 rotate so that thread cap 13 with threaded post 14 Threaded connection effect is lower to drive movable plate 11 to move up, at the same movable plate 11 by pulley 10 along second sliding slot 9 to moving up It is dynamic, while spring 62 pulls movable block 8 to be moved to the left and resets using the pulling force of itself, when movable block 8 and object separation, stops Rotation stop moves the first in command 201.

It can to sum up obtain, 1, the multi-functional education and instruction public address set, pass through the first in command 201, the second shaft 202, Two bevel gears 18, first bevel gear 17, first rotating shaft 15, threaded post 14, thread cap 13, movable plate 11, fixed link 12, pulley 10, the mutual cooperation between movable block 8, second sliding slot 9, slide bar 22, sliding sleeve 21, telescopic rod 61 and spring 62, when teacher needs When using the utility model, the utility model is carried by handle 28, to be convenient for carrying, when teacher needs object being fixed on When in babinet 1, object is placed on support board 4, rotates clockwise the first in command 201 so that the first in command 201 passes through second Shaft 202 drives second bevel gear 18 to rotate, and second bevel gear 18 drives first bevel gear 17 to rotate, and first bevel gear 17 passes through First rotating shaft 15 drives threaded post 14 to rotate so that thread cap 13 drives movable plate under the threaded connection effect with threaded post 14 11 move down, while movable plate 11 is moved down by pulley 10 along second sliding slot 9, and movable block 8 is squeezed by pulley 10 It presses to and moves right, movable block 8 is moved right by sliding block 7 along the first sliding groove 5, and simultaneous retractable bar 61 and spring 62 are by sliding block 7 pulling force extends, to achieve the purpose that fixed object so that public address set has multiple functions, so that teacher exists Say that class hour can carry babinet 1, to facilitate the work of teacher.

2, multi-functional education and instruction public address set, by between first rotating shaft 15, first bearing 16 and threaded post 14 Mutual cooperation so that first rotating shaft 15 rotates in the first bearing 16 more steady, so that first rotating shaft 15 drives Threaded post 14 rotates more steady.

3, the multi-functional education and instruction public address set, passes through the mutual cooperation between the first sliding groove 5 and sliding block 7 so that Sliding block 7 is more steady when being moved left and right in the first sliding groove 5, so that movable block 8 is left along the first sliding groove 5 by sliding block 7 It is more steady when moving right, and the utility model which has a compact structure and a reasonable design, it is highly practical.

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 (6)

1. a kind of multi-functional education and instruction public address set, including babinet（1）, it is characterised in that：The babinet（1）Under inner wall Surface is fixedly connected with loudspeaker（2）, the babinet（1）Inside it is provided with fixed plate（3）, the fixed plate（3）Upper surface it is solid Surely it is connected with support board（4）, the support board（4）Upper surface offer the first sliding groove（5）, the first sliding groove（5）Inner wall Left side pass through telescopic device（6）With sliding block（7）Left side be fixedly connected, the sliding block（7）Upper surface be fixedly connected There is movable block（8）, the movable block（8）Left side offer second sliding slot（9）, the second sliding slot（9）Inside it is slidably connected There is pulley（10）, the pulley（10）Left end and movable plate（11）Right side be fixedly connected, the movable plate（11）Under Surface is fixedly connected there are two fixed link（12）, and two fixed links（12）Opposite face respectively with thread cap（13）Left and right two Side is fixedly connected, the thread cap（13）Internal thread is connected with threaded post（14）, the threaded post（14）Bottom end fix connect It is connected to first rotating shaft（15）, the first rotating shaft（15）Surface be socketed with first bearing（16）, the first bearing（16）Card It is connected on fixed plate（3）Upper surface, the first rotating shaft（15）Surface be connected with first bevel gear（17）, the first cone tooth Wheel（17）With second bevel gear（18）Engagement, the second bevel gear（18）Left side be fixedly connected with driving device（20）, The driving device（20）Surface be socketed with second bearing（19）, the second bearing（19）It is connected to babinet（1）Left side Face, the movable plate（11）Left side be fixedly connected with sliding sleeve（21）, the sliding sleeve（21）Inside it is socketed with slide bar（22）, described Slide bar（22）Both ends respectively with babinet（1）The upper surface of inner wall and baffle（23）Upper surface be fixedly connected, the baffle （23）Left side and babinet（1）The left side of inner wall is fixedly connected, the babinet（1）Front be provided with cover board（24）, institute State cover board（24）Front be fixedly connected with second handle（25）, the cover board（24）Left side pass through hinge（26）With babinet （1）Front be fixedly connected, the babinet（1）Front and cover board（24）Corresponding position offers opening, the babinet （1）Upper surface be fixedly connected with handle（28）, the babinet（1）Lower surface be fixedly connected with support leg（29）.

2. a kind of multi-functional education and instruction public address set according to claim 1, it is characterised in that：The telescopic device （6）Including telescopic rod（61）Be socketed in telescopic rod（61）The spring on surface（62）, the first sliding groove（5）The left side of inner wall Pass through telescopic rod（61）And spring（62）With sliding block（7）Left side be fixedly connected.

3. a kind of multi-functional education and instruction public address set according to claim 1, it is characterised in that：The driving device （20）Including the first in command（201）, the first in command（201）Right side pass through the second shaft（202）With second bevel gear （18）Left side be fixedly connected, second shaft（202）It is socketed in second bearing（19）It is interior.

4. a kind of multi-functional education and instruction public address set according to claim 1, it is characterised in that：The support leg （29）Quantity be four, and four support legs（29）It is located at babinet（1）The four corners of lower surface.

5. a kind of multi-functional education and instruction public address set according to claim 3, it is characterised in that：The first in command （201）Shape be L-shaped, and the first in command（201）Positioned at babinet（1）Outside.

6. a kind of multi-functional education and instruction public address set according to claim 1, it is characterised in that：The babinet（1） Front be provided with ventilated net（27）, the ventilated net（27）Positioned at cover board（24）Lower section.