CN211878803U - Show rack for teaching instrument - Google Patents
Show rack for teaching instrument Download PDFInfo
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- CN211878803U CN211878803U CN202020408586.6U CN202020408586U CN211878803U CN 211878803 U CN211878803 U CN 211878803U CN 202020408586 U CN202020408586 U CN 202020408586U CN 211878803 U CN211878803 U CN 211878803U
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Abstract
The utility model discloses a show rack for teaching instrument, the on-line screen storage device comprises a base, the groove of accomodating has been seted up to the upper surface of base, the spout has all been seted up to the bottom surface at both ends about accomodating the groove, the cavity has been seted up to the inside of base lower extreme, the cavity is located the groove of accomodating under, first logical groove and second logical groove have been seted up to the lower extreme of base front surface, the second logical groove is located the positive right side in first logical groove, first logical groove and second logical groove all are located the dead ahead of cavity, and first logical groove and second logical groove all communicate with each other with the cavity, the top at both ends all is provided with the connecting plate about first logical groove and the second logical groove, the connecting plate welding is at the lower extreme of base front surface, the positive central threaded connection of connecting plate has locking bolt, the upper end embedding in accomodating the groove has the elevating platform. Through the cooperation setting of first slide-shaft and second slide-shaft, can make the show stand have manual electronic integrative structure.
Description
Technical Field
The utility model relates to a show stand technical field especially relates to a show rack for teaching instrument.
Background
The teaching instrument can be divided into two categories of experiments and practical training and is mainly applied to various professions of physical and technical engineering, such as electronic information engineering, electromechanical integration, computer principle and the like, and can help students to better remember, understand and master knowledge points. And in the show process of teaching instrument, because most teaching instrument is comparatively huge, so need the show stand to hold, and can both observe the teaching instrument in order to guarantee all students, some show stands also have raising and lowering functions.
The show stand of liftable among the prior art is pure electric lift or pure manual lift for the vast majority, does not possess manual and electronic integrative structure, so meet the condition of having a power failure at electronic show stand, and the show stand just can't go up and down, and manual show stand, only can pure manual lift, goes up and down comparatively troublesome, for this reason we have proposed a teaching instrument and uses show rack to solve the above-mentioned technical problem who provides.
SUMMERY OF THE UTILITY MODEL
The utility model provides a show stand of prior art that teaching instrument used show rack provided in order to solve above-mentioned background art does not possess the problem of manual and electronic integrative structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a display rack for teaching instruments comprises a base, wherein the upper surface of the base is provided with a containing groove, the bottom surfaces of the left end and the right end of the containing groove are respectively provided with a sliding groove, the inside of the lower end of the base is provided with a cavity, the cavity is positioned under the containing groove, the lower end of the front surface of the base is provided with a first through groove and a second through groove, the second through groove is positioned right side of the first through groove, the first through groove and the second through groove are positioned right ahead of the cavity and are communicated with the cavity, connecting plates are respectively arranged above the left end and the right end of the first through groove and the second through groove, the connecting plates are welded at the lower end of the front surface of the base, the center of the connecting plates is in threaded connection with a locking bolt, the upper end of the containing groove is embedded with a lifting platform, and slide bars are respectively welded at the left end and the right end of the, the lower end of the sliding rod extends downwards to the inside of the sliding groove, a lifting column is welded at the center of the bottom of the lifting platform, a lead screw is connected to the inside of the lifting column through threads, the lower end of the lead screw penetrates downwards into the inside of the cavity, a driven bevel gear is welded at the bottom of the lead screw, a first rotating shaft is rotatably connected to the left end of the cavity, the left end of the first rotating shaft penetrates through the base, a rotating handle is welded on the left end face of the first rotating shaft, a first sliding shaft is slidably connected to the outer surface of the right end of the first rotating shaft, a first driving bevel gear is welded on the right end face of the first sliding shaft, a second rotating shaft is rotatably connected to the right end of the cavity, the right end of the second rotating shaft is embedded into the base, a stepping motor is fixedly connected to the right end face of the second rotating shaft, a second sliding shaft is slidably connected to the outer surface of the left end of the second rotating shaft, and, the middle sections of the outer surfaces of the first sliding shaft and the second sliding shaft are provided with annular grooves, a first shifting rod is embedded into the front end of the annular groove of the first sliding shaft, the front end of the first shifting rod penetrates through the first through groove forwards, a second shifting rod is embedded into the front end of the annular groove of the second sliding shaft, and the front end of the second shifting rod penetrates through the second through groove forwards.
Furthermore, the sliding groove is connected with the sliding rod in a sliding mode, and the lead screw is connected to the bottom of the accommodating groove in a rotating mode.
Further, the first driving bevel gear and the second driving bevel gear are respectively located at the left end and the right end of the driven bevel gear.
Further, the first driving bevel gear is engaged with the left end of the driven bevel gear, and the second driving bevel gear is engaged with the right end of the driven bevel gear.
Furthermore, first pivot and second pivot all are connected with the base rotation.
Furthermore, the right end of the first rotating shaft and the left end of the second rotating shaft are spline shafts.
Furthermore, the rear end of the first deflector rod is rotatably connected with an annular groove of the first sliding shaft, and the rear end of the second deflector rod is rotatably connected with an annular groove of the second sliding shaft.
Furthermore, the first deflector rod is connected with the first through groove in a sliding manner, and the second deflector rod is connected with the second through groove in a sliding manner.
Furthermore, the front ends of the first deflector rod and the second deflector rod are both positioned right below the connecting plate.
Furthermore, the lower end of the locking bolt above the first through groove is downwards inserted into the first driving lever, and the lower end of the locking bolt above the second through groove is downwards inserted into the second driving lever.
Compared with the prior art, the utility model discloses the beneficial effect who realizes:
through the matching arrangement of the first sliding shaft and the second sliding shaft, the first sliding shaft can synchronously rotate along with the first rotating shaft, the first sliding shaft can slide left and right on the first rotating shaft, the second sliding shaft can synchronously rotate along with the second rotating shaft, and the second sliding shaft can also slide left and right on the second rotating shaft;
when a first driving bevel gear of the first sliding shaft is meshed with a driven bevel gear, the first rotating shaft is manually rotated, a screw rod can be driven to rotate through the meshing of the first driving bevel gear and the driven bevel gear, and then a lifting column in threaded connection with the screw rod can lift up and down, so that the lifting platform is manually lifted;
when a second driving bevel gear of the second sliding shaft is meshed with a driven bevel gear, the stepping motor can drive the screw rod to rotate through the meshing of the second driving bevel gear and the driven bevel gear, so that the lifting platform can be electrically lifted;
therefore, the display stand has a manual and electric integrated structure through the structure.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1 according to the present invention.
Fig. 3 is a schematic top view of the cavity of the present invention.
Fig. 4 is a partially enlarged schematic view of the point B of fig. 3 according to the present invention.
Fig. 5 is a schematic diagram of the external structure of the present invention.
Fig. 6 is a partially enlarged schematic view of the point C of fig. 5 according to the present invention.
Fig. 7 is a schematic structural view of the first shift lever and the first slide shaft of the present invention.
Fig. 8 is a schematic structural view of the second shift lever and the second slide shaft of the present invention.
Fig. 9 is a cross-sectional view of the first shift lever and the first slide shaft according to the present invention.
Fig. 10 is a cross-sectional view of the second shift lever and the second slide shaft according to the present invention.
In FIGS. 1-10: 1-base, 101-containing groove, 102-sliding groove, 103-cavity, 104-first through groove, 105-second through groove, 2-lifting table, 3-sliding rod, 4-lifting column, 5-leading screw, 6-driven bevel gear, 7-first rotating shaft, 701-rotating handle, 8-first sliding shaft, 9-first driving bevel gear, 10-second rotating shaft, 11-stepping motor, 12-second sliding shaft, 13-second driving bevel gear, 14-annular groove, 15-first deflector rod, 16-second deflector rod, 17-connecting plate and 18-locking bolt.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Please refer to fig. 1 to 10:
the utility model provides a show rack for teaching instrument, including base 1, carry out the detailed description below to each part of a show rack for teaching instrument:
the upper surface of the base 1 is provided with a containing groove 101, the bottom surfaces of the left end and the right end of the containing groove 101 are provided with sliding grooves 102, the inside of the lower end of the base 1 is provided with a cavity 103, the cavity 103 is positioned under the containing groove 101, the lower end of the front surface of the base 1 is provided with a first through groove 104 and a second through groove 105, the second through groove 105 is positioned right side of the first through groove 104, the first through groove 104 and the second through groove 105 are positioned right front of the cavity 103, the first through groove 104 and the second through groove 105 are communicated with the cavity 103, the upper parts of the left end and the right end of the first through groove 104 and the second through groove 105 are provided with connecting plates 17, the connecting plates 17 are welded at the lower end of the front surface of the base 1, and the center;
specifically, the accommodating groove 101 can accommodate the lifting platform 2, the sliding groove 102 can enable the sliding rod 3 to synchronously lift in the sliding groove 102 when the lifting platform 2 lifts, so that a lifting guide effect is achieved, the cavity 103 can enable the first driving bevel gear 9 and the second driving bevel gear 13 to move left and right in the base 1, the first through groove 104 and the second through groove 105 can enable the first shifting lever 15 and the second shifting lever 16 to slide left and right in the base 1, and through the matching of the connecting plate 17 and the locking bolt 18, when the first shifting lever 15 or the second shifting lever 16 slides to a position right below the connecting plate 17, the locking bolt 18 is manually screwed, so that the lower end of the locking bolt 18 is embedded into the first shifting lever 15 or the second shifting lever 16, and at this time, the first shifting lever 15 or the second shifting lever 16 is fixed at the current position;
according to the above, the lifting platform 2 is embedded in the upper end of the accommodating groove 101, the slide rods 3 are welded at the left end and the right end of the bottom of the lifting platform 2, the lower ends of the slide rods 3 extend downwards to the inside of the sliding groove 102, the lifting column 4 is welded at the midpoint of the bottom of the lifting platform 2, the inside of the lifting column 4 is connected with the screw rod 5 through threads, the lower end of the screw rod 5 penetrates downwards into the cavity 103, and the driven bevel gear 6 is welded at the bottom of the screw rod 5;
specifically, after the driven bevel gear 6 rotates, the lead screw 5 can be driven to synchronously rotate, and in the rotating process of the lead screw 5, because the lifting column 4 is in threaded connection with the lead screw 5, the rotating lead screw 5 can push the lifting column 4 to move up and down, so that the lifting column 4 moving up and down can drive the lifting platform 2 to lift up and down, and in the lifting process of the lifting platform 2, the slide rod 3 can also slide up and down in the sliding groove 102, so that the slide rod 3 plays a role in lifting and guiding;
according to the above, the left end of the cavity 103 is rotatably connected with the first rotating shaft 7, the left end of the first rotating shaft 7 penetrates through the base 1, the rotating handle 701 is welded on the left end face of the first rotating shaft 7, the outer surface of the right end of the first rotating shaft 7 is slidably connected with the first sliding shaft 8, the right end face of the first sliding shaft 8 is welded with the first drive bevel gear 9, the right end of the cavity 103 is rotatably connected with the second rotating shaft 10, the right end of the second rotating shaft 10 is embedded into the base 1, the right end face of the second rotating shaft 10 is fixedly connected with the stepping motor 11, the outer surface of the left end of the second rotating shaft 10 is slidably connected with the second sliding shaft 12, and the left end face of the second sliding shaft 12 is welded with the second;
specifically, the first sliding shaft 8 can rotate along with the first rotating shaft 7, and meanwhile, the first sliding shaft 8 can slide left and right at the right end of the first rotating shaft 7, when the first sliding shaft 8 slides right, the first driving bevel gear 9 is meshed with the driven bevel gear 6, then the rotating handle 701 is manually rotated to drive the first rotating shaft 7 and the first sliding shaft 8 to rotate, so that the rotating first sliding shaft 8 drives the screw 5 to rotate through the meshing of the first driving bevel gear 9 and the driven bevel gear 6, so as to manually lift the lifting platform 2, and when the first sliding shaft 8 slides left, the first driving bevel gear 9 is disengaged from the driven bevel gear 6;
the second sliding shaft 12 can synchronously rotate along with the first rotating shaft 10 and can slide left and right at the left end of the second rotating shaft 10, so that when the second sliding shaft 12 slides left, the second driving bevel gear 13 is meshed with the driven bevel gear 6, then the electrified stepping motor 11 drives the second rotating shaft 10 and the second sliding shaft 12 to rotate, the second sliding shaft 12 is meshed with the driven bevel gear 6 through the second driving bevel gear 13 to drive the screw 5 to rotate, so as to electrically lift the lifting platform 2, and when the second sliding shaft 12 slides right, the second driving bevel gear 13 is disengaged from the driven bevel gear 6;
according to the above, the middle sections of the outer surfaces of the first sliding shaft 8 and the second sliding shaft 12 are both provided with the annular grooves 14, the front end of the annular groove 14 of the first sliding shaft 8 is embedded with the first driving lever 15, the front end of the first driving lever 15 forwards penetrates through the first through groove 104, the front end of the annular groove 14 of the second sliding shaft 12 is embedded with the second driving lever 16, and the front end of the second driving lever 16 forwards penetrates through the second through groove 105;
specifically, when the first deflector rod 15 is manually shifted, the first deflector rod 15 can slide left and right in the first through groove 104, when the first deflector rod 15 slides to the rightmost end of the first through groove 104, the first deflector rod 15 can push the first sliding shaft 8 to synchronously slide right on the first rotating shaft 7, at this time, the first driving bevel gear 9 is engaged with the driven bevel gear 6, when the first deflector rod 15 slides to the leftmost end of the first through groove 104, the first sliding shaft 8 synchronously slides left, and the first driving bevel gear 9 is disengaged from the driven bevel gear 6;
when the second shifting lever 16 slides to the leftmost end of the second through slot 105, the second shifting lever 16 can push the second sliding shaft 12 to synchronously slide leftwards on the second rotating shaft 10, at this time, the second driving bevel gear 13 is engaged with the driven bevel gear 6, when the second shifting lever 16 slides to the rightmost end of the second through slot 105, the second sliding shaft 12 synchronously slides rightwards, and the second driving bevel gear 13 is disengaged from the driven bevel gear 6.
In summary, when the lifting platform 2 needs to be manually lifted: firstly, a second driving lever 16 is shifted to the rightmost end of a second through groove 105, a locking bolt 18 on a connecting plate 17 is screwed to fix the second driving lever 16, then a first driving lever 15 is shifted to the rightmost end of a first through groove 104, a first driving bevel gear 9 is meshed with a driven bevel gear 6, then the locking bolt 18 is screwed to fix the first driving lever 15, and then a round handle 701 can be manually rotated and a first rotating shaft 7 and a first sliding shaft 8 are driven to rotate, so that the first sliding shaft 8 is meshed with the driven bevel gear 6 through the first driving bevel gear 9 to drive a screw 5 to rotate, and therefore the lifting platform 2 is manually lifted;
when the lifting platform 2 needs to be electrically lifted, the first driving lever 15 is manually shifted to the leftmost end of the first through groove 104 and fixed, then the second driving lever 16 is shifted to the leftmost end of the second through groove 105 and fixed, so that the second driving bevel gear 13 is meshed with the driven gear 6, then the electrified stepping motor 11 can drive the second rotating shaft 10 and the second sliding shaft 12 to rotate, and the second sliding shaft 12 is meshed with the driven gear 6 through the second driving bevel gear 13 to drive the screw 5 to rotate, so that the lifting platform 2 is electrically lifted.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a teaching instrument is with show rack, includes base (1), its characterized in that:
the upper surface of the base (1) is provided with a containing groove (101), the bottom surfaces of the left end and the right end of the containing groove (101) are provided with sliding grooves (102), the inside of the lower end of the base (1) is provided with a cavity (103), the cavity (103) is positioned under the containing groove (101), the lower end of the front surface of the base (1) is provided with a first through groove (104) and a second through groove (105), the second through groove (105) is positioned right side of the first through groove (104), the first through groove (104) and the second through groove (105) are both positioned right front of the cavity (103), the first through groove (104) and the second through groove (105) are both communicated with the cavity (103), connecting plates (17) are respectively arranged above the left end and the right end of the first through groove (104) and the second through groove (105), and the connecting plates (17) are welded at the lower end of the front surface of the base (1), the positive center of the connecting plate (17) is in threaded connection with a locking bolt (18);
a lifting platform (2) is embedded into the upper end of the accommodating groove (101), sliding rods (3) are welded at the left end and the right end of the bottom of the lifting platform (2), the lower ends of the sliding rods (3) extend downwards to the inside of the sliding groove (102), a lifting column (4) is welded at the center of the bottom of the lifting platform (2), a lead screw (5) is connected to the inside of the lifting column (4) through threads, the lower end of the lead screw (5) penetrates downwards into the cavity (103), and a driven bevel gear (6) is welded at the bottom of the lead screw (5);
the left end of the cavity (103) is rotatably connected with a first rotating shaft (7), the left end of the first rotating shaft (7) penetrates through the base (1), the left end face of the first rotating shaft (7) is welded with a rotating handle (701), the outer surface of the right end of the first rotating shaft (7) is slidably connected with a first sliding shaft (8), the right end face of the first sliding shaft (8) is welded with a first driving bevel gear (9), the right end of the cavity (103) is rotatably connected with a second rotating shaft (10), the right end of the second rotating shaft (10) is embedded into the base (1), the right end face of the second rotating shaft (10) is fixedly connected with a stepping motor (11), the outer surface of the left end of the second rotating shaft (10) is slidably connected with a second sliding shaft (12), and the left end face of the second sliding shaft (12) is welded with a second driving bevel gear (13);
annular grooves (14) are formed in the middle sections of the outer surfaces of the first sliding shaft (8) and the second sliding shaft (12), a first shifting rod (15) is embedded into the front end of the annular groove (14) of the first sliding shaft (8), the front end of the first shifting rod (15) penetrates through the first through groove (104) forwards, a second shifting rod (16) is embedded into the front end of the annular groove (14) of the second sliding shaft (12), and the front end of the second shifting rod (16) penetrates through the second through groove (105) forwards.
2. The display rack for teaching instruments according to claim 1, wherein: the sliding groove (102) is connected with the sliding rod (3) in a sliding mode, and the lead screw (5) is rotatably connected to the bottom of the accommodating groove (101).
3. The display rack for teaching instruments according to claim 1, wherein: the first driving bevel gear (9) and the second driving bevel gear (13) are respectively positioned at the left end and the right end of the driven bevel gear (6).
4. A display stand for teaching instruments according to claim 3 wherein: the first driving bevel gear (9) is engaged with the left end of the driven bevel gear (6), and the second driving bevel gear (13) is engaged with the right end of the driven bevel gear (6).
5. The display rack for teaching instruments according to claim 1, wherein: the first rotating shaft (7) and the second rotating shaft (10) are rotatably connected with the base (1).
6. The display rack for teaching instruments according to claim 1, wherein: the right end of the first rotating shaft (7) and the left end of the second rotating shaft (10) are spline shafts.
7. The display rack for teaching instruments according to claim 1, wherein: the rear end of the first deflector rod (15) is rotationally connected with the annular groove (14) of the first sliding shaft (8), and the rear end of the second deflector rod (16) is rotationally connected with the annular groove (14) of the second sliding shaft (12).
8. The display rack for teaching instruments according to claim 1, wherein: the first driving lever (15) is connected with the first through groove (104) in a sliding mode, and the second driving lever (16) is connected with the second through groove (105) in a sliding mode.
9. The display rack for teaching instruments according to claim 1, wherein: the front ends of the first deflector rod (15) and the second deflector rod (16) are both positioned under the connecting plate (17).
10. The display rack for teaching instruments according to claim 9, wherein: the lower end of the locking bolt (18) above the first through groove (104) is inserted downwards into the first driving lever (15), and the lower end of the locking bolt (18) above the second through groove (105) is inserted downwards into the second driving lever (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020408586.6U CN211878803U (en) | 2020-03-26 | 2020-03-26 | Show rack for teaching instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020408586.6U CN211878803U (en) | 2020-03-26 | 2020-03-26 | Show rack for teaching instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211878803U true CN211878803U (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020408586.6U Active CN211878803U (en) | 2020-03-26 | 2020-03-26 | Show rack for teaching instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN211878803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538883A (en) * | 2021-06-29 | 2022-12-30 | 重庆海尔制冷电器有限公司 | Linkage mechanism for refrigeration equipment and refrigeration equipment with linkage mechanism |
-
2020
- 2020-03-26 CN CN202020408586.6U patent/CN211878803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538883A (en) * | 2021-06-29 | 2022-12-30 | 重庆海尔制冷电器有限公司 | Linkage mechanism for refrigeration equipment and refrigeration equipment with linkage mechanism |
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