CN111166115B

CN111166115B - Multi-functional chemical instrumentation show shelf convenient to go up and down

Info

Publication number: CN111166115B
Application number: CN202010025068.0A
Authority: CN
Inventors: 冯俊豪; 范瑶飞
Original assignee: Hangzhou Leshou Technology Co Ltd
Current assignee: Hefei Quezhifeng Intellectual Property Agency Co.,Ltd.
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2021-02-26
Anticipated expiration: 2040-01-10
Also published as: CN111166115A

Abstract

The invention relates to the technical field of chemical instrument display stands, in particular to a multifunctional chemical instrument display stand convenient to lift, which comprises a driving structure, a display structure, a storage structure, a fixing structure, a moving structure and a transmission structure, wherein the driving structure is arranged on the display structure; the moving structures are arranged inside the fixed structures and are connected with the fixed structures in a sliding mode, so that the driving structures can drive the two moving structures to slide in the direction opposite to the sliding direction of the fixed structures, the containing structures on the two moving structures can change the heights alternately, chemical instruments in the display structures on the containing structures with different heights can be taken conveniently, the space utilization efficiency is greatly improved, and the display effect is better; accomodate the inside of structure simultaneously and be equipped with the show structure that a plurality of directions show chemical instrumentation simultaneously, and then be convenient for closely observation and show chemical instrumentation, accomodate the use of structure cooperation show structure simultaneously and be convenient for seal chemical instrumentation, make dustproof performance good.

Description

Multi-functional chemical instrumentation show shelf convenient to go up and down

Technical Field

The invention relates to the technical field of chemical instrument display stands, in particular to a multifunctional chemical instrument display stand convenient to lift.

Background

Instruments used in chemical experiments are called chemical instruments; the materials may be metered or reacted; mainly divided into a measuring instrument and a reaction instrument; make up the constitution device with the instrument with specific mode, realize the experiment purpose, need place chemical instrumentation on the show shelf in the teaching, then mr learns student's identification instrument type step by step according to the instrument on the show shelf, takes the instrument simultaneously and teaches student's concrete operation.

However, traditional chemical instrumentation show shelf is fixed mostly, when the high height of show shelf is too high, the instrument of taking not convenient for, when the height of show shelf is low excessively, space utilization efficiency is low, be not convenient for teaching in the laboratory and use, and the rigidity between the instrument in the show shelf, closely show teaching of being not convenient for in the show process, and be not convenient for closely a plurality of chemical instruments of show, when having door and window, the quick instrument of taking not convenient for in dirt-proof, the show shelf without door and window makes a large amount of dusts that bond on the instrument easily, be unfavorable for the use of teaching in-process.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a multifunctional chemical instrument display stand convenient to lift.

The technical scheme adopted by the invention for solving the technical problems is as follows: a multifunctional chemical instrument display stand convenient to lift comprises a driving structure, a display structure, a storage structure, a fixing structure, a moving structure and a transmission structure; the fixed structure is provided with the driving structures for driving the two moving structures, the two moving structures are diagonally and symmetrically arranged at two ends of the fixed structure, and the sliding directions of the two moving structures and the fixed structure are opposite; the mobile structure is provided with the containing structure for preventing dust of the chemical instrument, and the containing structure is connected with the fixed structure in a sliding manner; the accommodating structure is provided with the display structure for storing and displaying the chemical instruments in a classified manner; the storage structure is internally provided with a transmission structure for driving the display structure to be opened and closed, and the transmission structure is connected with the display structure.

Specifically, the fixed knot constructs including access panel, fixed frame and guide rail, the rectangle structure fixed frame with sliding connection between the removal structure, be equipped with bolted connection on the fixed frame the access panel, the both ends symmetry of fixed frame is equipped with two the guide rail, the removal structure with sliding connection between the guide rail.

Specifically, the moving structure comprises a sliding block, a sliding rod, three guide blocks, a first return spring, a first piston, a convex block and a flow guide hole, the two sliding blocks with L-shaped cross sections are symmetrically arranged on two sides of the fixed frame diagonally, the sliding block is connected with the guide rail in a sliding manner, the sliding block is connected with the sliding rod in a sliding manner, one end of the sliding rod, which is far away from the sliding block, is fixed on the accommodating structure, one end of the flow guide hole penetrates through the sliding block and extends to the sliding rod, the first piston is connected with the sliding block in a sliding manner, the first return spring is arranged between the first piston and the sliding block, the other end of the flow guide hole extends to a cavity in which the first return spring is located inside the sliding block, the convex block penetrates through the sliding block and is fixed on the first piston, and the sliding direction between the first piston and the sliding block is vertical, the lug with sliding connection between the slider, the both ends orientation of fixed frame the one end symmetry of drive structure is equipped with two cross-sections and is right trapezoid the guide block, another cross-section is isosceles trapezoid the guide block is fixed in one of them side of fixed frame and with one of them cross-section be right trapezoid the guide block one-to-one.

Specifically, the drive structure includes actuating lever, transfer line, first gear, second gear, reversing lever, third gear, fourth gear and lead screw, the vertical fixation has on the fixed frame the transfer line, the transfer line with rotate between the fixed frame and be connected, the transfer line with the slip direction of slider is perpendicular, the actuating lever with sliding connection between the transfer line, the one end that the transfer line deviates from the actuating lever is equipped with the first gear, first gear with the meshing of second gear, first gear with the second gear all locates the inside of fixed frame, reversing lever through connection in fixed frame with the second gear, the transfer line with between the reversing lever perpendicularly, the reversing lever with rotate between the fixed frame and be connected, the both ends symmetry of reversing lever is equipped with two third gear, the third gear is meshed with the fourth gear, the screw rod is in through connection with the fixed frame and the fourth gear, the first gear, the second gear, the third gear and the fourth gear are all helical gears, the screw rod is in rotational connection with the fixed frame, the screw thread directions of the two screw rods are opposite, and the screw rod is in threaded connection with the sliding block.

Specifically, the containing structure includes observation window and containing box, two the slide bar deviates from the one end of slider all is fixed with the containing box, the lateral wall of containing box with the difference of the maximum distance between the access panel and its minimum distance is less than the length of slide bar, the containing box deviates from the one end of access panel is equipped with and is used for observing the transparent of chemical instrumentation the observation window.

Specifically, the display structure comprises a first display box, a second display box, a third display box, a stop block, a first guide rod and a second guide rod, wherein the top end of the containing box is provided with the third display box which is used for storing chemical instruments and is deviated from the fixed frame, one end of the third display box is not sealed, the sliding direction of the third display box is parallel to the sliding direction of the sliding block, the second display box which is vertical to the fixed frame and is not sealed is arranged on the containing box, the bottom end of the containing box is symmetrically provided with two first display boxes, the two first display boxes slide oppositely or oppositely, the sliding direction of the first display box with the unsealed top end is vertical to the sliding direction of the second display box, the side wall of the third display box is provided with the stop block, and the stop block is connected with the containing box in a sliding manner, the end part of the first guide rod is fixed on the containing box, the first guide rod is connected with the second display box in a sliding mode, the second guide rod is fixed on the containing box, and the first display box is connected with the second guide rod in a sliding mode.

Specifically, the transmission structure comprises a connecting rod, a positioning rod, a second piston, a second return spring and a containing chamber, one end of the connecting rod is fixed to the stop block, the other end of the connecting rod penetrates through the containing chamber and extends to the second piston, the connecting rod is in sliding connection with the containing chamber, the connecting rod penetrates through the second return spring, the second piston and the containing chamber are enclosed to form the containing chamber, the first guide rod and the second guide rod both extend to the containing chamber, the first guide rod and the second guide rod are of hollow cylinder structures, the positioning rod is in sliding connection with the containing chamber, the positioning rod is fixed to one end, deviating from the connecting rod, of the second piston, and the positioning rod is in conflict with the bottom end of the fixing frame.

The invention has the beneficial effects that:

(1) according to the multifunctional chemical instrument display rack convenient to lift, the moving structures are arranged inside the fixed structures and are connected with the fixed structures in a sliding mode, so that the two moving structures and the fixed structures are driven by the driving structures to slide in opposite directions, the accommodating structures on the two moving structures are enabled to change heights alternately, chemical instruments in the display structures on the accommodating structures with different heights can be taken conveniently, the space utilization efficiency is greatly improved, and the display effect is better, namely: fixing a fixed frame on a wall surface of a laboratory through bolts, when chemical instruments at different heights need to be taken alternately, pulling a driving rod to enable the driving rod and a transmission rod to slide, enabling the driving rod to slide out of the transmission rod, further avoiding a containing structure to shield the driving rod when sliding between a sliding rod and a sliding block, rotating the driving rod, enabling the driving rod to drive the transmission rod to rotate, enabling a first gear on the transmission rod to drive a second gear to rotate, enabling the second gear to drive a reversing rod and the fixed frame to rotate, enabling a third gear at the end part of the reversing rod to drive a fourth gear to rotate, enabling the fourth gear to drive a lead screw to rotate, enabling the thread directions of the lead screw to be opposite, further driving two sliding blocks to slide in opposite directions, symmetrically arranging two guide blocks with right trapezoid cross sections at two ends of the fixed frame towards one end of the driving structure, enabling the other guide block with the isosceles trapezoid cross section to be fixed at one, when the lug on one of them slider contradicts and slides with the guide block that the cross-section is isosceles trapezoid, the lug contradicts and slides between first piston and the slider, and then makes the compression of first reset spring, and the air current slides through water conservancy diversion hole drive slide bar and slider, and then makes the structure of accomodating on two slide bars stagger, and each other does not influence the slip, and then the height of two structures of accomodating of quick regulation of being convenient for, makes the space utilization efficiency of chemical instrumentation's storage higher, the closely show of being convenient for simultaneously.

(2) According to the multifunctional chemical instrument display rack convenient to lift, the storage structure is arranged on the fixed moving structure, the display structure convenient for displaying chemical instruments in multiple directions simultaneously is arranged inside the storage structure, so that the chemical instruments can be conveniently observed and displayed in a short distance, the chemical instruments can be conveniently sealed by matching the storage structure with the display structure, and the dustproof performance is good, namely: when a lug on one sliding block is abutted to a guide block with a right trapezoid cross section to slide, the lug is abutted to slide between a first piston and the sliding block, so that a first reset spring is compressed, air flow drives a slide rod to slide through a flow guide hole, so that two containing boxes are completely staggered, the difference between the maximum distance and the minimum distance between the side wall of each containing box and an access panel is smaller than the length of the slide rod, so that the two containing boxes are not influenced by each other, the first display box, the second display box and the third display box are conveniently and completely unfolded, a plurality of chemical instruments are conveniently and simultaneously unfolded, the chemical instruments can be conveniently checked and learned from multiple angles on the top end and the side wall in a short distance, the chemical instruments can be conveniently taken, the display quality of the chemical instruments is greatly improved, the teaching is more convenient and rapid, and the first display box, the second display box and the third display box are made of transparent materials, and then the use of cooperation observation window makes the show more convenient, makes chemical instrumentation's leakproofness better, the chemical instrumentation of being convenient for categorised simultaneously.

(3) According to the multifunctional chemical instrument display stand convenient to lift, the transmission structure is arranged inside the storage structure and connected with the display structure, so that when the fixing structure is abutted against the transmission structure, the display structure is driven to be unfolded simultaneously through the transmission structure, and the display structure is opened and closed more conveniently and quickly, namely: when the locating lever is contradicted to fixed frame, the locating lever drives and slides between second piston and the containing box, the compression of second reset spring, the volume of containing chamber reduces, the inside gas of containing chamber is discharged from first guide bar and second guide bar, and then slide between drive second show case and the first guide bar, make second show case roll-off containing box, first show case slides with the second guide bar, second piston conflict connecting rod simultaneously, connecting rod conflict dog drive third show case exposes the containing box, and then be convenient for the simultaneous control first show case, the opening and close of second show case and third show case, and then make the effect of show better, make the operational flexibility better, when the locating lever does not contradict with fixed frame, the extension of second reset spring drives first show case, second show case and third show case reset.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of the overall structure of a preferred embodiment of a multi-functional chemical instrument display stand convenient for lifting and lowering provided by the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion B shown in FIG. 1;

FIG. 4 is a schematic view of a connection structure between the driving structure and the moving structure shown in FIG. 1;

FIG. 5 is a schematic view of a connection structure between the fixed structure and the movable structure shown in FIG. 1;

FIG. 6 is a schematic structural view of the moving structure shown in FIG. 2;

FIG. 7 is a schematic view of a connection structure between the display structure and the receiving structure shown in FIG. 1;

fig. 8 is an enlarged schematic view of the portion C shown in fig. 7.

In the figure: 1. the device comprises a driving structure, 11, a driving rod, 12, a driving rod, 13, a first gear, 14, a second gear, 15, a reversing rod, 16, a third gear, 17, a fourth gear, 18, a screw rod, 2, a display structure, 21, a first display box, 22, a second display box, 23, a third display box, 24, a stop, 25, a first guide rod, 26, a second guide rod, 3, a containing structure, 31, an observation window, 32, a containing box, 4, a fixed structure, 41, an access panel, 42, a fixed frame, 43, a guide rail, 5, a moving structure, 51, a sliding block, 52, a sliding rod, 53, a guide block, 54, a first return spring, 55, a first piston, 56, a lug, 57, a diversion hole, 6, a transmission structure, 61, a connecting rod, 62, a positioning rod, 63, a second piston, 64, a second return spring, 65 and a containing chamber.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-8, the multifunctional chemical instrument display rack convenient to lift comprises a driving structure 1, a display structure 2, a storage structure 3, a fixing structure 4, a moving structure 5 and a transmission structure 6; the fixed structure 4 is provided with the driving structures 1 for driving the two moving structures 5, the two moving structures 5 are diagonally and symmetrically arranged at two ends of the fixed structure 4, and the sliding directions of the two moving structures 5 and the fixed structure 4 are opposite; the mobile structure 5 is provided with the accommodating structure 3 for preventing dust of a chemical instrument, and the accommodating structure 3 is connected with the fixed structure 4 in a sliding manner; the accommodating structure 3 is provided with the display structure 2 for storing and displaying the chemical instruments in a classified manner; the containing structure 3 is internally provided with a transmission structure 6 for driving the display structure 2 to be opened and closed, and the transmission structure 6 is connected with the display structure 2.

Specifically, fixed knot constructs 4 including access panel 41, fixed frame 42 and guide rail 43, the rectangle structure fixed frame 42 with sliding connection between the moving structure 5, be equipped with bolted connection on the fixed frame 42 access panel 41, the both ends symmetry of fixed frame 42 is equipped with two guide rail 43, moving structure 5 with sliding connection between the guide rail 43.

Specifically, the moving structure 5 includes a sliding block 51, a sliding rod 52, three guide blocks 53, a first return spring 54, a first piston 55, a protrusion 56, and a guide hole 57, the two sliding blocks 51 with L-shaped cross sections are diagonally and symmetrically disposed on two sides of the fixed frame 42, the sliding block 51 is slidably connected with the guide rail 43, the sliding block 51 is slidably connected with the sliding rod 52, one end of the sliding rod 52 away from the sliding block 51 is fixed to the accommodating structure 3, one end of the guide hole 57 penetrates through the sliding block 51 and extends to the sliding rod 52, the first piston 55 is slidably connected with the sliding block 51, the first return spring 54 is disposed between the first piston 55 and the sliding block 51, the other end of the guide hole 57 extends to a cavity in the sliding block 51 where the first return spring 54 is located, the protrusion 56 penetrates through the sliding block 51 and is fixed to the first piston 55, first piston 55 with sliding direction between the slider 51 is perpendicular, the lug 56 with sliding connection between the slider 51, the both ends orientation of fixed frame 42 the one end symmetry of drive structure 1 is equipped with two cross-sections and is right trapezoid guide block 53, and another cross-section is isosceles trapezoid guide block 53 is fixed in one of them side of fixed frame 42 just is right trapezoid with one of them cross-section guide block 53 one-to-one.

Specifically, drive structure 1 includes actuating lever 11, transfer line 12, first gear 13, second gear 14, reversing lever 15, third gear 16, fourth gear 17 and lead screw 18, fixed perpendicularly has on the fixed frame 42 transfer line 12, transfer line 12 with rotate between the fixed frame 42 and be connected, transfer line 12 with slider 51's slip direction is perpendicular, actuating lever 11 with sliding connection between the transfer line 12, transfer line 12 deviates from the one end of actuating lever 11 is equipped with first gear 13, first gear 13 with the meshing of second gear 14, first gear 13 with second gear 14 all locates the inside of fixed frame 42, reversing lever 15 through connection in fixed frame 42 with second gear 14, transfer line 12 with perpendicular between the reversing lever 15, reversing lever 15 with rotate between the fixed frame 42 and be connected, two third gears 16 are symmetrically arranged at two ends of the reversing rod 15, the third gears 16 are meshed with the fourth gears 17, the screw rod 18 is connected to the fixed frame 42 and the fourth gears 17 in a penetrating manner, the first gear 13, the second gear 14, the third gears 16 and the fourth gears 17 are all helical gears, the screw rod 18 is rotatably connected with the fixed frame 42, the thread directions of the two screw rods 18 are opposite, and the screw rod 18 is in threaded connection with the sliding block 51; moving structure 5 locates fixed knot constructs 4's inside, moving structure 5 with sliding connection between the fixed knot constructs 4, and then be convenient for pass through drive structure 1 drive two moving structure 5 with fixed knot constructs 4 slip opposite direction, makes two on the moving structure 5 accomodate structure 3 changes the height in turn, and then is convenient for take not co-altitude accomodate on the structure 3 chemical instrumentation in the show structure 2, and then has improved space utilization efficiency greatly, makes the bandwagon effect better, promptly: firstly, the fixing frame 42 is fixed on a wall surface of a laboratory through bolts, when chemical instruments at different heights need to be taken alternately, the driving rod 11 is pulled to enable the driving rod 11 and the driving rod 12 to slide, the driving rod 11 slides out of the driving rod 12, further, the accommodating structure 3 is prevented from shielding the driving rod 11 when the sliding rod 52 and the sliding block 51 slide, the driving rod 11 is rotated, the driving rod 11 drives the driving rod 12 to rotate, the first gear 13 on the driving rod 12 drives the second gear 14 to rotate, the second gear 14 drives the reversing rod 15 and the fixing frame 42 to rotate, the third gear 16 at the end part of the reversing rod 15 drives the fourth gear 17 to rotate, the fourth gear 17 drives the screw rod 18 to rotate, and the thread directions of the screw rod 18 are opposite, and then the sliding directions of the two sliding blocks 51 are opposite, two guiding blocks 53 with right trapezoid cross sections are symmetrically arranged at two ends of the fixing frame 42 towards one end of the driving structure 1, the other guiding block 53 with isosceles trapezoid cross section is fixed at one side of the fixing frame 42 and corresponds to one guiding block 53 with right trapezoid cross section, when the projection 56 on one sliding block 51 is abutted and slides against the guiding block 53 with isosceles trapezoid cross section, the projection 56 is abutted against the first piston 55 and slides against the sliding block 51, so that the first return spring 54 is compressed, the air flow drives the sliding rod 52 and the sliding block 51 to slide through the flow guide hole 57, so that the receiving structures 3 on the two sliding rods 52 are staggered and do not affect sliding each other, thereby facilitating quick adjustment of the heights of the two receiving structures 3, the utilization efficiency of the storage space of the chemical instrument is higher, and the short-distance display is convenient.

Specifically, accomodate structure 3 and include observation window 31 and containing box 32, two slide bar 52 deviates from the one end of slider 51 all is fixed with containing box 32, containing box 32's lateral wall with the difference of the biggest distance between access panel 41 and its minimum distance is less than slide bar 52's length, containing box 32 deviates from the one end of access panel 41 is equipped with the transparent that is used for observing chemical instrumentation observation window 31.

Specifically, the display structure 2 includes a first display box 21, a second display box 22, a third display box 23, a stopper 24, a first guide rod 25 and a second guide rod 26, the top end of the storage box 32 is provided with the third display box 23 which is separated from the fixed frame 42 and used for storing chemical instruments, the sliding direction of the third display box 23 is parallel to the sliding direction of the slider 51, the storage box 32 is provided with the second display box 22 which is vertical to the fixed frame 42 and has an unsealed top end, the bottom end of the storage box 32 is symmetrically provided with two first display boxes 21, the two first display boxes 21 slide oppositely or oppositely, the sliding direction of the first display box 21 which has an unsealed top end is vertical to the sliding direction of the second display box 22, the side wall of the third display box 23 is provided with the stopper 24, the stopper 24 is slidably connected with the containing box 32, the end of the first guide rod 25 is fixed to the containing box 32, the first guide rod 25 is slidably connected with the second display box 22, the second guide rod 26 is fixed to the containing box 32, and the first display box 21 is slidably connected with the second guide rod 26; accomodate structure 3 and locate to be fixed in remove structure 5, simultaneously accomodate the inside of structure 3 and be equipped with a plurality of directions of being convenient for show chemical instrumentation simultaneously show structure 2, and then be convenient for closely observation and show chemical instrumentation, simultaneously accomodate the cooperation of structure 3 the use of show structure 2 is convenient for seal chemical instrumentation, makes dustproof performance good, promptly: when the protrusion 56 of one of the sliders 51 is abutted against and slides against the guide block 53 having a right trapezoid cross section, the protrusion 56 abuts against and slides between the first piston 55 and the slider 51, so that the first return spring 54 is compressed, the slide rod 52 and the slider 51 are driven to slide by the airflow passing through the flow guide hole 57, so that the two storage boxes 31 are completely staggered, the difference between the maximum distance and the minimum distance between the side wall of the storage box 32 and the access panel 41 is smaller than the length of the slide rod 52, so that the two storage boxes 32 are not affected by each other, the first display box 21, the second display box 22 and the third display box 23 are conveniently and completely unfolded, a plurality of chemical instruments are conveniently and simultaneously unfolded, the chemical instruments can be conveniently checked and studied in a short distance from a plurality of angles on the top end and the side wall, and the chemical instruments can be conveniently taken, and then improved the quality of the show of chemical instrumentation greatly, made the teaching convenient and fast more, just first show case 21 with second show case 22 reaches third show case 23 is transparent material, and then the cooperation the use of observation window 31 makes the show more convenient, makes chemical instrumentation's leakproofness better, the categorised chemical instrumentation of taking of being convenient for simultaneously.

Specifically, the transmission structure 6 includes a connecting rod 61, a positioning rod 62, a second piston 63, a second return spring 64 and a receiving chamber 65, one end of the connecting rod 61 is fixed to the stopper 24, the other end of the connecting rod 61 penetrates through the receiving box 32 and extends to the second piston 63, the connecting rod 61 is slidably connected with the receiving box 32, the connecting rod 61 penetrates through the second return spring 64, the receiving chamber 65 is defined between the second piston 63 and the receiving box 32, the first guide rod 25 and the second guide rod 26 both extend to the receiving chamber 65, the first guide rod 25 and the second guide rod 26 are both hollow cylindrical structures, the positioning rod 62 is slidably connected with the receiving box 32, the positioning rod 62 is fixed to one end of the second piston 63, which is far away from the connecting rod 61, the positioning rod 62 is abutted against the bottom end of the fixed frame 42; drive structure 6 is located accomodate the inside of structure 3, just drive structure 6 connect in show structure 2, and then work as fixed knot constructs 4 with when drive structure 6 is contradicted, be convenient for pass through drive structure 6 drive show structure 2 expandes simultaneously, and then makes opening and close of show structure 2 convenient and fast more, promptly: when the positioning rod 62 is abutted to the fixing frame 42, the positioning rod 62 drives the second piston 63 and the storage box 32 to slide, the second return spring 64 is compressed, the volume of the storage chamber 65 is reduced, the gas in the storage chamber 65 is discharged from the first guide rod 25 and the second guide rod 26, so as to drive the second display box 22 and the first guide rod 25 to slide, so that the second display box 22 slides out of the storage box 32, the first display box 21 slides with the second guide rod 26, meanwhile, the second piston 63 is abutted to the connecting rod 61, the connecting rod 61 is abutted to the stopper 24 to drive the third display box 23 to expose the storage box 32, so that the opening and closing of the first display box 21, the second display box 22 and the third display box 23 can be simultaneously controlled, and the display effect is better, the operation flexibility is improved, and when the positioning rod 62 is not abutted against the fixing frame 42, the second return spring 64 extends to drive the first display box 21, the second display box 22 and the third display box 23 to return.

When the chemical instruments at different heights are required to be taken alternately, the driving rod 11 is pulled to slide between the driving rod 11 and the transmission rod 12, so that the driving rod 11 slides out of the transmission rod 12, the accommodating structure 3 is prevented from shielding the driving rod 11 when the sliding rod 52 and the sliding block 51 slide, the driving rod 11 is rotated, the driving rod 11 drives the transmission rod 12 to rotate, the first gear 13 on the transmission rod 12 drives the second gear 14 to rotate, the second gear 14 drives the reversing rod 15 and the fixed frame 42 to rotate, the third gear 16 at the end part of the reversing rod 15 drives the fourth gear 17 to rotate, the fourth gear 17 drives the screw rod 18 to rotate, the thread directions of the screw rods 18 are opposite, so that the sliding directions of the two sliding blocks 51 are opposite, two guide blocks 53 with right trapezoid cross sections are symmetrically arranged at two ends of the fixed frame 42 facing one end of the driving structure 1, the other guide block 53 with an isosceles trapezoid cross section is fixed on one side of the fixed frame 42 and corresponds to one guide block 53 with a right trapezoid cross section one by one, when the bump 56 on one of the slide blocks 51 is abutted and slides with the guide block 53 with an isosceles trapezoid cross section, the bump 56 is abutted to slide between the first piston 55 and the slide block 51, so that the first return spring 54 is compressed, the air flow drives the slide rods 52 and the slide blocks 51 to slide through the flow guide holes 57, and the containing structures 3 on the two slide rods 52 are staggered without affecting sliding, so that the heights of the two containing structures 3 can be conveniently and rapidly adjusted, the storage space utilization efficiency of the chemical instrument is higher, and the short-distance display is facilitated; when the convex block 56 on one of the sliding blocks 51 is abutted against and slides on the guide block 53 with a right trapezoid cross section, the convex block 56 abuts against and slides between the first piston 55 and the sliding block 51, so that the first return spring 54 is compressed, the airflow passes through the diversion hole 57 to drive the sliding rod 52 and the sliding block 51 to slide, so that the two storage boxes 31 are completely staggered, the difference between the maximum distance and the minimum distance between the side wall of the storage box 32 and the access panel 41 is less than the length of the sliding rod 52, so that the two storage boxes 32 are not affected with each other, when the positioning rod 62 is abutted against the fixed frame 42, the positioning rod 62 drives the second piston 63 and the storage box 32 to slide, the second return spring 64 is compressed, the volume of the storage chamber 65 is reduced, the gas in the storage chamber 65 is discharged from the first guide rod 25 and the second guide rod 26, so that the second display box 22 and the first guide rod 25 are driven to slide, so that the second display box 22, the first display box 21 and the second guide rod 26 slide, the second piston 63 abuts against the connecting rod 61, the connecting rod 61 abuts against the stop block 24 to drive the third display box 23 to expose out of the containing box 32, so that opening and closing of the first display box 21, the second display box 22 and the third display box 23 are conveniently controlled simultaneously, the display effect is better, the operation flexibility is better, and when the positioning rod 62 is not abutted against the fixed frame 42, the second reset spring 64 extends to drive the first display box 21, the second display box 22 and the third display box 23 to reset; be convenient for first show case 21 and second show case 22 and third show case 23 expand completely, be convenient for make a plurality of chemical instruments expand simultaneously, be convenient for carry out the study of looking over closely to the chemical instrument from a plurality of angles of top and lateral wall, be convenient for take the chemical instrument simultaneously, and then the quality of the show of chemical instrument has been improved greatly, make the teaching convenient and fast more, and first show case 21 and second show case 22 and third show case 23 are transparent material, and then the use of cooperation observation window 31 makes the show more convenient, make the leakproofness of chemical instrument better, be convenient for the categorised chemical instrument of taking of while.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multi-functional chemical instrumentation show shelf convenient to go up and down which characterized in that: comprises a driving structure (1), a display structure (2), a containing structure (3), a fixed structure (4), a moving structure (5) and a transmission structure (6); the fixed structure (4) is provided with the driving structure (1) for driving the two moving structures (5), the two moving structures (5) are diagonally and symmetrically arranged at two ends of the fixed structure (4), and the sliding directions of the two moving structures (5) and the fixed structure (4) are opposite; the mobile structure (5) is provided with the containing structure (3) for preventing dust of the chemical instrument, and the containing structure (3) is connected with the fixed structure (4) in a sliding manner; the containing structure (3) is provided with a display structure (2) for storing and displaying chemical instruments in a classified manner; the transmission structure (6) used for driving the display structure (2) to open and close is arranged in the containing structure (3), and the transmission structure (6) is connected to the display structure (2);

the fixed structure (4) comprises an access panel (41), a fixed frame (42) and a guide rail (43), the fixed frame (42) of a rectangular structure is in sliding connection with the movable structure (5), the fixed frame (42) is provided with the access panel (41) connected through bolts, two guide rails (43) are symmetrically arranged at two ends of the fixed frame (42), and the movable structure (5) is in sliding connection with the guide rails (43);

the moving structure (5) comprises a sliding block (51), a sliding rod (52), three guide blocks (53), a first reset spring (54), a first piston (55), a convex block (56) and a flow guide hole (57), wherein the two cross sections of the sliding block (51) are of L-shaped structures and are symmetrically arranged on two sides of the fixed frame (42) in diagonal angles, the sliding block (51) is connected with the guide rail (43) in a sliding manner, the sliding block (51) is connected with the sliding rod (52) in a sliding manner, one end of the sliding rod (52) departing from the sliding block (51) is fixed on the accommodating structure (3), one end of the flow guide hole (57) penetrates through the sliding block (51) and extends to the sliding rod (52), the first piston (55) is connected with the sliding block (51) in a sliding manner, and the first reset spring (54) is arranged between the first piston (55) and the sliding block (51), the other end of the flow guide hole (57) extends to a cavity in which the first return spring (54) is located inside the sliding block (51), the protruding block (56) penetrates through the sliding block (51) and is fixed to the first piston (55), the sliding direction between the first piston (55) and the sliding block (51) is perpendicular, the protruding block (56) is connected with the sliding block (51) in a sliding mode, two guide blocks (53) with right trapezoid cross sections are symmetrically arranged at two ends of the fixing frame (42) towards one end of the driving structure (1), and the other guide block (53) with isosceles trapezoid cross section is fixed to one side of the fixing frame (42) and corresponds to one guide block (53) with right trapezoid cross section;

drive structure (1) is including actuating lever (11), transfer line (12), first gear (13), second gear (14), reversing lever (15), third gear (16), fourth gear (17) and lead screw (18), fixed perpendicularly has on fixed frame (42) transfer line (12), transfer line (12) with rotate between fixed frame (42) and be connected, transfer line (12) with the slip direction of slider (51) is perpendicular, actuating lever (11) with sliding connection between transfer line (12), the one end that transfer line (12) deviates from actuating lever (11) is equipped with first gear (13), first gear (13) with second gear (14) meshing, first gear (13) with second gear (14) all locate the inside of fixed frame (42), reversing lever (15) through connection in fixed frame (42) with second gear (14), the transmission rod (12) is perpendicular to the reversing rod (15), the reversing rod (15) is rotatably connected with the fixed frame (42), two third gears (16) are symmetrically arranged at two ends of the reversing rod (15), the third gears (16) are meshed with the fourth gears (17), the screw rod (18) is connected with the fixed frame (42) and the fourth gears (17) in a penetrating manner, the first gear (13), the second gear (14), the third gears (16) and the fourth gears (17) are all helical gears, the screw rod (18) is rotatably connected with the fixed frame (42), the thread directions of the two screw rods (18) are opposite, and the screw rod (18) is in threaded connection with the sliding block (51);

accomodate structure (3) and include observation window (31) and containing box (32), two slide bar (52) deviate from the one end of slider (51) all is fixed with containing box (32), the lateral wall of containing box (32) with the difference of maximum distance between access panel (41) and its minimum distance is less than the length of slide bar (52), containing box (32) deviate from the one end of access panel (41) is equipped with the transparency that is used for observing chemical instrumentation observation window (31).

2. The multifunctional chemical instrument display stand convenient to lift according to claim 1, characterized in that: the display structure (2) comprises a first display box (21), a second display box (22), a third display box (23), a stop block (24), a first guide rod (25) and a second guide rod (26), wherein the top end of the storage box (32) is provided with the third display box (23) which deviates from the fixed frame (42) and is used for storing chemical instruments, one end of the third display box (23) is not sealed, the sliding direction of the third display box is parallel to that of the sliding block (51), the storage box (32) is provided with the second display box (22) which is vertical to the fixed frame (42) and is not sealed at the top end, the bottom end of the storage box (32) is symmetrically provided with two first display boxes (21), the two first display boxes (21) slide oppositely or oppositely, the sliding direction of the first display boxes (21) is not sealed at the top end, the sliding direction of the first display box (21) is vertical to that of the second display box (22), the lateral wall of third show case (23) is equipped with dog (24), dog (24) with sliding connection between containing box (32), the tip of first guide bar (25) is fixed in containing box (32), sliding connection between first guide bar (25) and second show case (22), second guide bar (26) is fixed in containing box (32), first show case (21) with sliding connection between second guide bar (26).

3. The multifunctional chemical instrument display stand convenient to lift according to claim 2, characterized in that: the transmission structure (6) comprises a connecting rod (61), a positioning rod (62), a second piston (63), a second return spring (64) and a containing chamber (65), one end of the connecting rod (61) is fixed to the stop block (24), the other end of the connecting rod (61) penetrates through the containing box (32) and extends to the second piston (63), the connecting rod (61) is in sliding connection with the containing box (32), the connecting rod (61) penetrates through the second return spring (64), the containing chamber (65) is enclosed between the second piston (63) and the containing box (32), the first guide rod (25) and the second guide rod (26) both extend to the containing chamber (65), the first guide rod (25) and the second guide rod (26) are both in hollow cylinder structures, and the positioning rod (62) is in sliding connection with the containing box (32), the locating lever (62) is fixed in the second piston (63) deviates from one end of the connecting rod (61), and the locating lever (62) is abutted against the bottom end of the fixed frame (42).