CN107701872A - A kind of teaching demonstration instrument - Google Patents

A kind of teaching demonstration instrument Download PDF

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Publication number
CN107701872A
CN107701872A CN201711024605.4A CN201711024605A CN107701872A CN 107701872 A CN107701872 A CN 107701872A CN 201711024605 A CN201711024605 A CN 201711024605A CN 107701872 A CN107701872 A CN 107701872A
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CN
China
Prior art keywords
fixedly connected
demonstration instrument
base
fixed
fixed column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201711024605.4A
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Chinese (zh)
Inventor
郑艳峰
Original Assignee
郑艳峰
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 郑艳峰 filed Critical 郑艳峰
Priority to CN201711024605.4A priority Critical patent/CN107701872A/en
Publication of CN107701872A publication Critical patent/CN107701872A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/041Allowing quick release of the apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/16Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/242Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by spreading of the legs
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00Teaching not covered by other main groups of this subclass

Abstract

The present invention provides a kind of teaching demonstration instrument, is related to teaching equipment field.The teaching demonstration instrument, including base, the corner of the base bottom is equipped with roller, fixed plate is provided with above the base, the corner of the fixed plate bottom at the top of fixed column with being fixedly connected, the fixed column is internally provided with fix bar, the bottom of the fix bar is through fixed column and extends to the bottom of fixed column with being fixedly connected at the top of base, top at left and right sides of the fix bar is fixedly connected with one end of connecting rod, and the other end of the connecting rod through fixed column and extends to the outside of fixed column.The teaching demonstration instrument, when motor driven screw rod rotates, movable block is set to drive support bar to be moved along screw surface, and then fixed plate is driven to move, moved by fixed column along fix bar, the stability of fixed plate is improved, so as to which the height of demonstration instrument body is adjusted as needed, effectively improves practicality.

Description

A kind of teaching demonstration instrument
Technical field
The present invention relates to teaching aid technical field, is specially a kind of teaching demonstration instrument.
Background technology
In order that student can intuitively, visually understand what is used when each appliances and teachers' instruction used in the content of courses The general name of apparatus, abbreviation teaching aid.Teaching aid can improve the learning interest of student, enrich perceptual knowledge, and help forms clear and definite concept, The observation ability and thinking ability of Developing Students '.Wherein common teaching aid includes, object simulating, including sample, model and other are multiple Product, such as tellurion, manikin, engineering equipment model;Describe things image chart, including picture, photo, map and The various visualization charts such as statistics, design;The sophisticated equipment of things image and its process is reproduced, such as projector, television set, record Sound machine, video recorder, slide projector, projecting apparatus etc..The conventional teaching aid used when also giving lessons, such as blackboard, blackboard eraser, blank, chalk.
With demonstration instrument by the way that demonstration instrument body is placed on support, height is for the most of teaching used at present in market Fixed, it can not be adjusted as needed, so as to have impact on practicality.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, the invention provides a kind of teaching demonstration instrument, solve mentioned above current The most of teaching used in market with demonstration instrument by the way that demonstration instrument body is placed on support, height be it is fixed, can not It is adjusted as needed, the problem of so as to have impact on practicality.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs:A kind of teaching demonstration instrument, including bottom Seat, the corner of the base bottom is equipped with roller, is provided with fixed plate above the base, and the four of the fixed plate bottom Angle at the top of fixed column with being fixedly connected, and the fixed column is internally provided with fix bar, and the bottom of the fix bar is run through Fixed column simultaneously extends to the bottom of fixed column with being fixedly connected at the top of base, the top at left and right sides of the fix bar with even One end of extension bar is fixedly connected, and the other end of the connecting rod through fixed column and extends to the outside of fixed column, the base It is fixedly connected at the center at top with the bottom of motor cabinet, motor, the top of the motor is provided with the top of the motor cabinet It is fixedly connected with the bottom of screw rod, the top of the screw rod is provided with limited block, and the surface of the screw rod is socketed with movable block, institute The left and right sides for stating movable block is fixedly connected with one end of support bar, and the other end of the support bar and the bottom of fixed plate are consolidated Fixed connection, bottom of the support bar away from screw rod side is provided with guide block, guide rod is provided with above the guide block, described to lead The top of bar is provided with limiting plate, and the bottom of the guide rod, which runs through guide block and extends to the bottom of guide block and the top of base, to be fixed Connect, demonstration instrument body, the top of the fixed plate and the rear for being located at demonstration instrument body are provided with the top of the fixed plate Support frame is provided with, compactor is provided with left and right sides of support frame as described above bottom, the compactor is internally provided with liquid Force feed, the inside of the compactor and is provided with piston, the bottom of the piston and the top of depression bar positioned at the bottom of hydraulic oil It is fixedly connected, the bottom of the depression bar is through compactor and extends to the bottom of compactor with being fixedly connected at the top of compact heap, The bottom of the compact heap and the top contact of demonstration instrument body, the top of the base and are provided with the left of fixed plate Fixed seat, the top of the base and is provided with connecting seat on the left of the fixed seat, and the bottom of the connecting seat and pull bar is lived Dynamic connection, the top of the pull bar are set with drawing the bottom of handle to be fixedly connected between the right side of the pull bar and the left side of fixed seat Elastic threads are equipped with, fixed mount is provided with the right side of the base top, the bottom of the fixed mount and the top of electric pushrod are consolidated Fixed connection, with being fixedly connected at the top of sucker, the motor is electrically connected with external control panel for the bottom of the electric pushrod.
Preferably, the surface of the fix bar and loose collar, the table of the fix bar are socketed with positioned at the bottom of fixed column Face and positioned at loose collar bottom and base top between be socketed with spring.
Preferably, one end of the spring is fixedly connected with the bottom of loose collar, and the top of the other end of spring and base Portion is fixedly connected.
Preferably, the fixed column and connecting rod, and the junction of fixed column and connecting rod offers and mutually fitted with connecting rod The groove matched somebody with somebody.
Preferably, the guide block offers the rod aperture being adapted with guide rod with the junction of guide rod, and the inwall of rod aperture is set It is set to smooth surface.
Preferably, the opening of the compactor is provided with block, and the junction of block and depression bar offers and depression bar The circular hole being adapted.
Preferably, the movable block and screw rod, and movable block offers the spiral shell being adapted with screw rod with the junction of screw rod Pit.
Preferably, the fixed plate and demonstration instrument body, and offer at the top of fixed plate and be adapted with demonstration instrument body Standing groove.
Preferably, one end of the elastic threads on the right side of pull bar with being fixedly connected, and the other end and fixed seat of elastic threads Left side be fixedly connected.
(3) beneficial effect
The invention provides a kind of teaching demonstration instrument.Possesses following beneficial effect:
1st, the teaching demonstration instrument, by setting positioned at the fixed column of fixed plate bottom four corners and by connecting rod with The fix bar that fixed column is slidably connected, and the screw rod being fixedly connected with motor by setting and the work for being socketed in screw surface Motion block, while be fixedly connected by one end of setting with the other end being fixedly connected at left and right sides of movable block with the bottom of fixed plate Support bar, so as to be rotated when motor driven screw rod, make movable block drive support bar to be moved along screw surface, and then drive solid Fixed board moves, and is moved by fixed column along fix bar, improves the stability of fixed plate, so as to as needed to exhibition Show that the height of instrument body is adjusted, effectively improve practicality.
2nd, the teaching demonstration instrument, by support bar of the setting at left and right sides of movable block, and the position for passing through setting Through guide block and prolong in guide block of the support bar away from the side bottom of screw rod one, while by above the guide block and bottom of setting Extend the bottom of guide block and the guide rod being fixedly connected at the top of base, so as to when motor driven screw rod rotate, make support bar with Movable block moves, and then drives surface of the guide block along guide rod to slide, so as to effectively improve the stability of support bar action.
3rd, teaching demonstration instrument, by the roller positioned at base bottom corner of setting, and by being arranged on base Top and the fixed seat on the left of the fixed plate and the connecting seat on the left of fixed seat, at the same by setting and connecting seat The pull bar of flexible connection, and by one end of setting with being fixedly connected on the right side of pull bar, the other end connects with fixed on the left of fixed seat The elastic threads connect, so as to pull base to move by pull bar, the convenient movement that position is carried out to demonstration instrument body, it is easy to use.
4th, teaching demonstration instrument, by the fixed mount being arranged on the right side of base top, and by being arranged on fixed mount bottom The electric pushrod in portion, while by the sucker positioned at electric pushrod bottom of setting, so as to be worked when electric pushrod, make its drive Sucker moves down to be adsorbed to ground, so as to be moved when preventing base by external force, and then effectively improves base Stability.
5th, the teaching demonstration instrument, by being arranged at the top of fixed plate and positioned at the support frame at demonstration instrument body rear, and Consolidate by the compactor at left and right sides of support frame bottom of setting and the hydraulic oil inside compactor and with depression bar Surely the piston connected, while be fixedly connected by the top of setting with depression bar and compression that bottom contacts with demonstration instrument bodies top Block, so as to by the active force of hydraulic oil, make piston driving depression bar act compact heap, be easy to compact heap to demonstration instrument sheet Body is compressed, and effectively improves the stability of demonstration instrument body.
Brief description of the drawings
Fig. 1 is the section of structure that the present invention faces;
Fig. 2 is structural side view of the present invention;
Fig. 3 is the internal structure schematic diagram of compactor of the present invention.
In figure:1 base, 2 rollers, 3 fixed plates, 4 fixed columns, 5 fix bars, 6 connecting rods, 7 loose collars, 8 springs, 9 motors Seat, 10 motors, 11 screw rods, 12 limited blocks, 13 movable blocks, 14 support bars, 15 guide blocks, 16 guide rods, 17 limiting plates, 18 demonstration instrument sheets Body, 19 support frames, 20 compactors, 21 hydraulic oil, 22 pistons, 23 depression bars, 24 blocks, 25 compact heaps, 26 fixed seats, 27 connections Handle, 30 elastic threads, 31 fixed mounts, 32 electric pushrods, 33 suckers are drawn in seat, 28 pull bars, 29.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of teaching demonstration instrument, as Figure 1-3, including base 1, the four of the bottom of base 1 Angle is equipped with roller 2, and the top of base 1 is provided with fixed plate 3, and the top of the corner of the bottom of fixed plate 3 with fixed column 4 is fixed Connection, fixed column 4 are internally provided with fix bar 5, and the bottom of fix bar 5 through fixed column 4 and extends to the bottom of fixed column 4 It is fixedly connected with the top of base 1, the surface of fix bar 5 and is socketed with loose collar 7 positioned at the bottom of fixed column 4, fix bar 5 Surface and it is socketed with spring 8 between the bottom of loose collar 7 and the top of base 1, one end of spring 8 and the bottom of loose collar 7 Portion is fixedly connected, and the other end of spring 8 is fixedly connected with the top of base 1, is connect when fixed column 4 moves down with loose collar 7 When touching, by the resilient force of spring 8, so as to enter row buffering to fixed column 4, the top of the left and right sides of fix bar 5 is with connecting One end of extension bar 6 is fixedly connected, and the other end of connecting rod 6 through fixed column 4 and extends to the outside of fixed column 4, the He of fixed column 4 Connecting rod 6, and fixed column 4 offers the groove being adapted with connecting rod 6 with the junction of connecting rod 6, so as to facilitate fixed column 4 Moved along groove, the stability that raising fixed column 4 moves, company is fixed in the bottom at the center at the top of base 1 with motor cabinet 9 Connect, the top of motor cabinet 9 is provided with motor 10, the model of motor 10:Y100L-6, motor 10 refer to determine according to electromagnetic induction Rule realizes electric energy conversion or a kind of calutron transmitted, and its main function is to produce driving torque, as electrical appliance or each The power source of kind machinery, the top of motor 10 are fixedly connected with the bottom of screw rod 11, and the top of screw rod 11 is provided with limited block 12, The surface of screw rod 11 is socketed with movable block 13, spacing so as to effectively be carried out to movable block 13 by the limited block 12 of setting, activity Block 13 and screw rod 11, and movable block 13 offers the screwed hole being adapted with screw rod 11, portable propelling with the junction of screw rod 11 Block 13 with screw rod 11 rotate and it is stable moved along the surface of screw rod 11, the left and right sides of movable block 13 with support bar 14 One end is fixedly connected, and the other end of support bar 14 is fixedly connected with the bottom of fixed plate 3, so as to drive 11 turns of screw rod when motor 10 It is dynamic, make movable block 13 drive support bar 14 to be moved along the surface of screw rod 11, and then drive fixed plate 3 to move, support bar 14 Bottom away from the side of screw rod 11 is provided with guide block 15, and the top of guide block 15 is provided with guide rod 16, and the top of guide rod 16 is provided with Limiting plate 17, the bottom of guide rod 16 is through guide block 15 and extends to the bottom of guide block 15 and is fixedly connected with the top of base 1, works as electricity Machine 10 drives screw rod 11 to rotate, and support bar 14 is moved with movable block 13, and then drives surface of the guide block 15 along guide rod 16 Slide, so as to effectively improve the stability of the action of support bar 14, the junction of guide block 15 and guide rod 16 offers and the phase of guide rod 16 The rod aperture of adaptation, and the inwall of rod aperture is arranged to smooth surface, so as to reduce the friction between guide block 15 and guide rod 16, is easy to guide block 15 slide along the surface of guide rod 16, and the top of fixed plate 3 is provided with demonstration instrument body 18, fixed plate 3 and demonstration instrument body 18, and The top of fixed plate 3 offers the standing groove being adapted with demonstration instrument body 18, is easy to the placement of demonstration instrument body 18, fixed plate 3 top and the rear of demonstration instrument body 18 is provided with support frame 19, support frame 19 is provided with left and right sides of bottom Compactor 20, compactor 20 are internally provided with hydraulic oil 21, the inside of compactor 20 and the bottom setting for being located at hydraulic oil 21 There is piston 22, the bottom of piston 22 is fixedly connected with the top of depression bar 23, and the bottom of depression bar 23 through compactor 20 and extends to The bottom of compactor 20 is fixedly connected with the top of compact heap 25, and the opening of compactor 20 is provided with block 24, and block 24 The circular hole being adapted with depression bar 23 is offered with the junction of depression bar 23, not only depression bar 23 is carried out spacing, and is effectively improved The stability that depression bar 23 acts, the bottom of compact heap 25 and the top contact of demonstration instrument body 18, so as to pass through hydraulic oil 21 Active force, make piston 22 drive depression bar 23 to act compact heap 25, be easy to compact heap 25 to press demonstration instrument body 18 Tightly, effectively improve the stability of demonstration instrument body 18, the top of base 1 and the left side of fixed plate 3 be provided with fixed seat 26, The top of base 1 and the left side of fixed seat 26 being provided with connecting seat 27, connecting seat 27 is flexibly connected with the bottom of pull bar 28, The top of pull bar 28 is fixedly connected with 29 bottom with drawing, and is set between the right side of pull bar 28 and the left side of fixed seat 26 flexible Rope 30, pull base 1 to move by pull bar 28, the convenient movement that position is carried out to demonstration instrument body 18, be easy to use, elastic threads 30 one end is fixedly connected with the right side of pull bar 28, and the other end of elastic threads 30 is fixedly connected with the left side of fixed seat 26, is led to Cross the effect of elastic threads 30, convenient pull bar 28 to be carried out spacing, the right side at the top of base 1 is provided with fixed mount 31, fixed mount 31 Bottom be fixedly connected with the top of electric pushrod 32, the bottom of electric pushrod 32 is fixedly connected with the top of sucker 33, so as to When electric pushrod 32 works, make it drive sucker 33 to move down and ground is adsorbed, during so as to prevent base 1 by external force It is moved, and then effectively improves the stability of base 1, motor 10 is electrically connected with external control panel.
Operation principle:Drive screw rod 11 to rotate in use, working as motor 10, movable block 13 is driven support bar 14 along screw rod 11 surfaces are moved, and then drive fixed plate 3 to move, and are moved by fixed column 4 along fix bar 5, improve the steady of fixed plate 3 It is qualitative, and by driving surface of the guide block 15 along guide rod 16 to slide, so as to effectively improve the stability of the action of support bar 14, enter And the height of demonstration instrument body 18 can be adjusted as needed.
In summary, teaching demonstration instrument, by setting positioned at the fixed column 4 of fixed plate 3 bottom four corners and logical Cross the fix bar 5 that connecting rod 6 and fixed column 4 are slidably connected, and by the screw rod 11 being fixedly connected with motor 10 of setting and The movable block 13 on the surface of screw rod 11 is socketed in, at the same it is another with being fixedly connected at left and right sides of movable block 13 by one end of setting The support bar 14 being fixedly connected with the bottom of fixed plate 3 is held, so as to drive screw rod 11 to rotate when motor 10, drives movable block 13 Support bar 14 moves along the surface of screw rod 11, and then drives fixed plate 3 to move, and is moved by fixed column 4 along fix bar 5 It is dynamic, the stability of fixed plate 3 is improved, so as to which the height of demonstration instrument body 18 is adjusted as needed, is effectively improved Practicality.
Secondly, by the support bar 14 positioned at the left and right sides of movable block 13 of setting, and support bar is located at by setting 14 guide blocks 15 away from the side bottom of screw rod 11 1, while guide block 15 is run through simultaneously by above the guide block 15 and bottom of setting The guide rod 16 that the bottom of guide block 15 and the top of base 1 are fixedly connected is extended to, so as to drive screw rod 11 to rotate when motor 10, is made Support bar 14 moves with movable block 13, and then drives surface of the guide block 15 along guide rod 16 to slide, so as to effectively improve support The stability that bar 14 acts.
Also, by the roller 2 positioned at the bottom four corners of base 1 of setting, and by being arranged on the top of base 1 and being located at The fixed seat 26 in the left side of fixed plate 3 and the connecting seat 27 positioned at the left side of fixed seat 26, while pass through setting and connecting seat 27 The pull bar 28 of flexible connection, and be fixedly connected by one end of setting with the right side of pull bar 28, the other end and the left side of fixed seat 26 The elastic threads 30 being fixedly connected, so as to pull base 1 to move by pull bar 28, the convenient shifting that position is carried out to demonstration instrument body 18 It is dynamic, it is easy to use.
Also, by being arranged on the fixed mount 31 of the top right side of base 1, and by being arranged on the electronic of the bottom of fixed mount 31 Push rod 32, while by the sucker 33 positioned at the bottom of electric pushrod 32 of setting, so as to be worked when electric pushrod 32, make its drive Sucker 33 moves down to be adsorbed to ground, so as to be moved when preventing base 1 by external force, and then effectively improves base 1 stability.
Also, by being arranged on the top of fixed plate 3 and positioned at the support frame 19 at the rear of demonstration instrument body 18, and pass through setting The compactor 20 at left and right sides of the bottom of support frame 19 and the hydraulic oil 21 inside compactor 20 and with depression bar 23 The piston 22 being fixedly connected, while be fixedly connected with depression bar 23 by the top of setting and bottom connects with the top of demonstration instrument body 18 Tactile compact heap 25, so as to by the active force of hydraulic oil 21, make piston 22 drive depression bar 23 to act compact heap 25, just Demonstration instrument body 18 is compressed in compact heap 25, effectively improves the stability of demonstration instrument body 18.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (9)

1. a kind of teaching demonstration instrument, including base (1), the corner of base (1) bottom are equipped with roller (2), its feature It is:Be provided with fixed plate (3) above the base (1), the corner of fixed plate (3) bottom with fixed column (4) Top is fixedly connected, and the fixed column (4) is internally provided with fix bar (5), and fixed column is run through in the bottom of the fix bar (5) (4) and the bottom of fixed column (4) is extended to being fixedly connected at the top of base (1), the top at left and right sides of the fix bar (5) One end with connecting rod (6) is fixedly connected, and the other end of the connecting rod (6) through fixed column (4) and extends to fixed column (4) outside, it is fixedly connected with the bottom of motor cabinet (9) at the center at the top of the base (1), the top of the motor cabinet (9) Portion is provided with motor (10), and the top of the motor (10) is fixedly connected with the bottom of screw rod (11), the top of the screw rod (11) End is provided with limited block (12), and the surface of the screw rod (11) is socketed with movable block (13), the left and right two of the movable block (13) The one end of side with support bar (14) is fixedly connected, and the other end of the support bar (14) is fixed with the bottom of fixed plate (3) to be connected Connect, bottom of the support bar (14) away from screw rod (11) side is provided with guide block (15), and the top of the guide block (15) is set There is guide rod (16), the top of the guide rod (16) is provided with limiting plate (17), and guide block (15) is run through in the bottom of the guide rod (16) And the bottom for extending to guide block (15) is provided with demonstration instrument with being fixedly connected at the top of base (1) at the top of the fixed plate (3) Body (18), the top of the fixed plate (3) and is provided with support frame (19), the branch positioned at the rear of demonstration instrument body (18) Compactor (20) is provided with left and right sides of support (19) bottom, the compactor (20) is internally provided with hydraulic oil (21), the inside of the compactor (20) and the bottom of hydraulic oil (21) is provided with piston (22), the piston (22) Bottom is fixedly connected with the top of depression bar (23), and the bottom of the depression bar (23) through compactor (20) and extends to compactor (20) bottom at the top of compact heap (25) with being fixedly connected, the bottom of the compact heap (25) and the top of demonstration instrument body (18) Portion contacts, and the top of the base (1) and is provided with fixed seat (26), the top of the base (1) on the left of the fixed plate (3) Portion and connecting seat (27) is provided with the left of the fixed seat (26), the bottom activity of the connecting seat (27) and pull bar (28) is even Connect, the top of the pull bar (28) is fixedly connected with the bottom of (29) with drawing, right side and the fixed seat (26) of the pull bar (28) Left side between be provided with elastic threads (30), the right side at the top of the base (1) is provided with fixed mount (31), the fixed mount (31) bottom at the top of electric pushrod (32) with being fixedly connected, the bottom of the electric pushrod (32) and the top of sucker (33) It is fixedly connected, the motor (10) is electrically connected with external control panel.
2. one kind teaching demonstration instrument according to claim 1, it is characterised in that:The surface and position of the fix bar (5) Loose collar (7), the surface of the fix bar (5) and the bottom and bottom for being located at loose collar (7) are socketed with the bottom of fixed column (4) Spring (8) is socketed between the top of seat (1).
3. one kind teaching demonstration instrument according to claim 2, it is characterised in that:One end of the spring (8) and activity The bottom of ring (7) is fixedly connected, and the other end of spring (8) at the top of base (1) with being fixedly connected.
4. one kind teaching demonstration instrument according to claim 1, it is characterised in that:The fixed column (4) and connecting rod (6), and fixed column (4) offers the groove being adapted with connecting rod (6) with the junction of connecting rod (6).
5. one kind teaching demonstration instrument according to claim 1, it is characterised in that:The guide block (15) and guide rod (16) Junction offers the rod aperture being adapted with guide rod (16), and the inwall of rod aperture is arranged to smooth surface.
6. one kind teaching demonstration instrument according to claim 1, it is characterised in that:The opening of the compactor (20) is set Block (24) is equipped with, and block (24) offers the circular hole being adapted with depression bar (23) with the junction of depression bar (23).
7. one kind teaching demonstration instrument according to claim 1, it is characterised in that:The movable block (13) and screw rod (11), and movable block (13) offers the screwed hole being adapted with screw rod (11) with the junction of screw rod (11).
8. one kind teaching demonstration instrument according to claim 1, it is characterised in that:The fixed plate (3) and demonstration instrument sheet Body (18), and the standing groove being adapted with demonstration instrument body (18) is offered at the top of fixed plate (3).
9. one kind teaching demonstration instrument according to claim 1, it is characterised in that:One end of the elastic threads (30) and drawing Bar is fixedly connected on the right side of (28), and the other end of elastic threads (30) on the left of fixed seat (26) with being fixedly connected.
CN201711024605.4A 2017-10-27 2017-10-27 A kind of teaching demonstration instrument Withdrawn CN107701872A (en)

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Application Number Priority Date Filing Date Title
CN201711024605.4A CN107701872A (en) 2017-10-27 2017-10-27 A kind of teaching demonstration instrument

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108803225A (en) * 2018-07-16 2018-11-13 安徽工程大学 A kind of self-adjustable mobile projection screen
CN108895259A (en) * 2018-07-24 2018-11-27 合肥爱玩动漫有限公司 A kind of cartoon displaying device
CN109584676A (en) * 2018-08-20 2019-04-05 安徽倍思特教育科技有限公司 A kind of auxiliary teaching device of College Ideological and Political Education

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108803225A (en) * 2018-07-16 2018-11-13 安徽工程大学 A kind of self-adjustable mobile projection screen
CN108895259A (en) * 2018-07-24 2018-11-27 合肥爱玩动漫有限公司 A kind of cartoon displaying device
CN109584676A (en) * 2018-08-20 2019-04-05 安徽倍思特教育科技有限公司 A kind of auxiliary teaching device of College Ideological and Political Education
CN109584676B (en) * 2018-08-20 2020-09-29 李长高 Supplementary teaching device that university ideological and political education used

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Application publication date: 20180216