CN112554611A - Elevating platform is used in theatre stage speech - Google Patents
Elevating platform is used in theatre stage speech Download PDFInfo
- Publication number
- CN112554611A CN112554611A CN202011385354.4A CN202011385354A CN112554611A CN 112554611 A CN112554611 A CN 112554611A CN 202011385354 A CN202011385354 A CN 202011385354A CN 112554611 A CN112554611 A CN 112554611A
- Authority
- CN
- China
- Prior art keywords
- wall
- gear
- welded
- box
- stage
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/12—Tribunes, grandstands or terraces for spectators
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/12—Tribunes, grandstands or terraces for spectators
- E04H3/123—Telescopic grandstands
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention discloses a lifting platform for stage lectures in a theater, which comprises a base, wherein a lifting frame is welded on the outer wall of the top of the base, an air cylinder is installed on the lifting frame, a box body is welded on the outer wall of the top of the lifting frame, a driving motor is installed on the inner wall of the bottom of the box body through a bolt, a first gear is coaxially sleeved on an output shaft of the driving motor, a transmission shaft is arranged in the box body, a second gear is coaxially sleeved on the transmission shaft, a disc is welded on the outer wall of the top end of the transmission shaft, reinforcing columns distributed in an annular mode are welded on the outer wall of the top of the disc, and a same standing circular truncated cone. According to the invention, as the effective tooth number of the second gear is about 3.6 times of that of the first gear, the standing circular truncated cone can intermittently rotate, and the speed reduction effect of the speed reducer is matched, so that the standing circular truncated cone is convenient for audiences in multiple directions to watch, and certain watching time can be reserved for the audiences in the rotating process.
Description
Technical Field
The invention relates to the technical field of lifting platforms, in particular to a lifting platform for a theater stage lecture.
Background
The speech is also called a lecture or a speech, which means that in public places, vocal language is taken as a main means, physical language is taken as an auxiliary means, own opinions and advices are clearly and completely published aiming at a specific problem, a language interpersonal activity for explaining affairs or expressing emotions and carrying out propaganda and promotion is illustrated, and the lifting platform is a frequently used performance tool in theater stage speech. Meanwhile, with the abundance of various lecture types and the diversification of program types, the requirements on the lifting platform are continuously improved.
However, the existing lifting table is unstable in the lifting process due to poor anti-seismic performance, the safety coefficient is low, and the adjusted position cannot be fixed again after the lifting is finished, so that the phenomenon of getting down the bed is possibly caused; in addition, the conventional elevating platform cannot rotate after the elevating platform is lifted, so that the conventional elevating platform is not beneficial to watching audiences from a plurality of directions. Therefore, we propose a lifting platform for theater stage lectures.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a lifting platform for a theater stage lecture.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a theater stage is elevating platform for speech, includes the base, the welding of the top outer wall of base has the crane, and installs the cylinder on the crane, the welding of the top outer wall of crane has the box, and the bottom inner wall of box installs driving motor through the bolt, coaxial first gear that has cup jointed on driving motor's the output shaft, be equipped with the transmission shaft in the box, and coaxial second gear that has cup jointed on the transmission shaft, the welding of the top outer wall of transmission shaft has the disc, and the welding of the top outer wall of disc has the enhancement post of annular distribution, and is a plurality of the welding of the top outer wall of enhancement post has same round platform of standing, the bottom four corners position of box all is equipped with damper, and four damper all include the supporting box of welding at base top outer wall, insert the support column of establishing in the supporting box, the equidistance set up a, The first damping spring of cover on the support column and the welding are two second damping spring at support box bottom inner wall, the welding of the top outer wall of base has two mounting panels, and all is equipped with two locking mechanism, four on two mounting panels locking mechanism all includes the lead screw, the screw thread cover of cover on the lead screw, the L type inserted bar of welding at screw thread cover top outer wall and cup joints the belt pulley on the lead screw, two the equal fixed mounting of one side outer wall that the mounting panel was kept away from each other has the motor storehouse, and one side inner wall of two motor storehouses all installs servo motor, two servo motor's output shaft all is connected with two lead screws wherein through the shaft coupling respectively.
Preferably, the transmission shaft is respectively connected with the inner wall of the top and the inner wall of the bottom of the box body through two bearings, and the output shaft of the driving motor is connected with the inner wall of the top of the box body through a bearing.
Preferably, the first gear and the second gear are both located in the box body, the first gear and the second gear are meshed with each other, the effective tooth number of the second gear is about 3.6 times of that of the first gear, and a speed reducer is arranged on an output shaft of the driving motor.
Preferably, the top inner wall of the support box is provided with a jack matched with the support column, and the outer wall of the support column is connected with the inner wall of the jack in a sliding manner.
Preferably, the outer walls of the two ends of the first damping spring are respectively welded on the outer wall of the bottom of the box body and the outer wall of the top of the supporting box, and the outer walls of the top ends of the two second damping springs are respectively welded on the outer wall of the bottom of the supporting column.
Preferably, the lead screw passes through two bearings and is connected with one side inner wall of mounting panel and supporting box respectively, and the one end outer wall of L type inserted bar extends to in one of them fixed slot, and two sets of belt pulleys all connect through a belt transmission.
Preferably, one side of the supporting box is provided with a limiting inserting channel matched with the L-shaped inserting rod, and the outer wall of the L-shaped inserting rod is connected with the inner wall of the limiting inserting channel in a sliding mode.
Preferably, the servo motor is connected with a reversing switch through a wire, and the reversing switch is connected with a power line.
The invention has the beneficial effects that:
1. due to the arrangement of the damping mechanism and the locking mechanism, double damping can be performed in the vertical direction by utilizing the elasticity of the first damping spring and the second damping spring in the lifting process, the lifting process can be more stable, the screw rod is driven to rotate through the servo motor after the lifting is completed, the screw sleeve drives the L-shaped inserted rod to move and be inserted into the fixed groove under the limiting action of the limiting insertion channel after the screw rod rotates, so that the stability is further improved under the fixed support of the four L-shaped inserted rods, the probability of occurrence of the phenomenon that the user possibly leaves the couch after the lifting is completed is reduced, and the safety coefficient of the whole upgrading platform is improved;
2. through driving motor, first gear, the cooperation of transmission shaft and second gear is used, the first gear of driving motor drive rotates, first gear rotates the second gear rotation that drives meshing with it, the round platform of standing of transmission shaft top is driven in the rotation of second gear, because the number of effective teeth of second gear is about 3.6 times of the number of effective teeth of first gear, so stand the round platform can be done intermittent type nature and rotate, and the speed reduction effect of cooperation reduction gear, not only can make things convenient for the spectator in a plurality of positions to watch, and can also reserve certain viewing time for spectator at the rotatory in-process.
Drawings
Fig. 1 is a schematic structural view of a lifting platform for a theater stage lecture according to the present invention;
FIG. 2 is a partially enlarged schematic view of FIG. 1;
fig. 3 is a schematic top view of the engagement between the first gear and the second gear in the elevating platform for theater stage lecture according to the present invention;
fig. 4 is a schematic view of a partial three-dimensional structure below a lifting platform for a theater stage lecture according to the present invention;
fig. 5 is a schematic view of a three-dimensional structure above the elevating platform for theater stage lecture according to the present invention.
In the figure: the device comprises a base 1, a lifting frame 2, a cylinder 3, a box 4, a driving motor 5, a first gear 6, a transmission shaft 7, a second gear 8, a disk 9, a reinforcing column 10, a standing round table 11, a supporting box 12, a supporting column 13, a fixing groove 14, a first damping spring 15, a second damping spring 16, a mounting plate 17, a motor cabin 18, a servo motor 19, a screw rod 20, a belt pulley 21, a threaded sleeve 22 and an L-shaped inserted rod 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Embodiment 1, referring to fig. 1 to 5, a lifting platform for theater stage lecture comprises a base 1, a lifting frame 2 welded on the outer wall of the top of the base 1, a cylinder 3 installed on the lifting frame 2, a box 4 welded on the outer wall of the top of the lifting frame 2, a driving motor 5 installed on the inner wall of the bottom of the box 4 through a bolt, a first gear 6 coaxially sleeved on an output shaft of the driving motor 5, a transmission shaft 7 installed in the box 4, a second gear 8 coaxially sleeved on the transmission shaft 7, the first gear 6 and the second gear 8 both located in the box 4, the first gear 6 and the second gear 8 meshed with each other, the number of effective teeth of the second gear 8 is about 3.6 times the number of effective teeth of the first gear 6, a reducer installed on the output shaft of the driving motor 5, the transmission shaft 7 respectively connected with the inner wall of the top and the inner wall of the bottom of the box 4 through two bearings, and the output shaft of the driving motor 5 connected with the, the disc 9 is welded on the outer wall of the top end of the transmission shaft 7, the reinforcing columns 10 distributed in an annular mode are welded on the outer wall of the top portion of the disc 9, the same standing circular truncated cone 11 is welded on the outer wall of the top end of the plurality of reinforcing columns 10, the driving motor 5, the first gear 6, the transmission shaft 7 and the second gear 8 are matched for use, the driving motor 5 drives the first gear 6 to rotate, the first gear 6 rotates to drive the second gear 8 meshed with the first gear to rotate, the second gear 8 rotates to drive the standing circular truncated cone 11 above the transmission shaft 7 to rotate, and as the effective tooth number of the second gear 8 is about 3.6 times of the effective tooth number of the first gear 6, the standing circular truncated cone 11 can rotate intermittently and is matched with the speed reduction effect of the speed reducer, so that the spectators in multiple directions can be watched conveniently, and certain watching time can be reserved;
four corners of the bottom of the box body 4 are respectively provided with a damping mechanism, and the four damping mechanisms respectively comprise a supporting box 12 welded on the outer wall of the top of the base 1, a supporting column 13 inserted in the supporting box 12, a plurality of fixing grooves 14 equidistantly arranged on the inner wall of one side of the supporting column 13, a first damping spring 15 sleeved on the supporting column 13 and two second damping springs 16 welded on the inner wall of the bottom of the supporting box 12, the inner wall of the top of the supporting box 12 is provided with a jack matched with the supporting column 13, the outer wall of the supporting column 13 is connected with the inner wall of the jack in a sliding way, the outer walls of two ends of the first damping spring 15 are respectively welded on the outer wall of the bottom of the box body 4 and the outer wall of the top of the supporting box 12, the outer walls of the top ends of the two second damping springs 16 are both welded on the outer wall of the bottom of the supporting column, the four locking mechanisms comprise screw rods 20, threaded sleeves 22 sleeved on the screw rods 20, L-shaped insert rods 23 welded on the outer walls of the tops of the threaded sleeves 22 and belt pulleys 21 sleeved on the screw rods 20, motor cabins 18 are fixedly installed on the outer walls of the sides, far away from each other, of the two mounting plates 17, servo motors 19 are installed on the inner walls of one sides of the two motor cabins 18 through bolts, output shafts of the two servo motors 19 are respectively connected with the two screw rods 20 through couplers, the screw rods 20 are respectively connected with the mounting plates 17 and the inner walls of one side of the supporting box 12 through two bearings, the outer wall of one end of each L-shaped insert rod 23 extends into one of the fixing grooves 14, the two groups of belt pulleys 21 are in transmission connection through one belt, a limiting insert channel matched with the L-shaped insert rods 23 is formed in one side of the supporting box 12, and the outer walls of the L-shaped, servo motor 19 is connected with the switch of falling in the same direction as the direction as.
When the lifting table is used, a speaker stands on the standing circular table 11, the lifting frame 2 is driven to ascend or descend by the air cylinder 3, in the lifting process, the elasticity of the first damping spring 15 and the second damping spring 16 is utilized to perform double damping in the vertical direction, so that the lifting process is more stable, after the lifting is completed, the four screw rods 20 rotate simultaneously through the two servo motors 19 and the transmission of the two groups of belt pulleys 21, under the limiting action of the four limiting insertion ways after the four screw rods 20 rotate, the four thread sleeves 22 drive the four L-shaped insertion rods 23 to move and be inserted into the four corresponding fixing grooves 14, so that under the fixed support of the four L-shaped insertion rods 23, the stability is further improved, the probability of upgrading possibly occurring when the lifting is completed is reduced, and the safety factor of the whole lifting table is improved, when rotating, the first gear 6 of driving motor 5 drive rotates, first gear 6 rotates and drives the second gear 8 rotation of meshing with it, second gear 8 rotates and drives transmission shaft 7 and rotate, transmission shaft 7 rotates and drives disc 9 and rotates, disc 9 rotates the back under the reinforcing effect of a plurality of enhancement posts 10, the round platform 11 of standing of top can stabilize the rotation, because the effective number of teeth of second gear 8 is about 3.6 times of the effective number of teeth of first gear 6, so stand round platform 11 can be made intermittent type nature and rotate, and the speed reduction effect of cooperation reduction gear, not only make things convenient for the spectator in a plurality of positions to watch, and still reserve certain watch time for spectator at rotatory in-process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The elevating platform for the stage lecture in the theater comprises a base (1) and is characterized in that a lifting frame (2) is welded on the outer wall of the top of the base (1), an air cylinder (3) is installed on the lifting frame (2), a box body (4) is welded on the outer wall of the top of the lifting frame (2), a driving motor (5) is installed on the inner wall of the bottom of the box body (4) through a bolt, a first gear (6) is coaxially sleeved on an output shaft of the driving motor (5), a transmission shaft (7) is arranged in the box body (4), a second gear (8) is coaxially sleeved on the transmission shaft (7), a disc (9) is welded on the outer wall of the top of the transmission shaft (7), reinforcing columns (10) which are distributed in an annular shape are welded on the outer wall of the top of the disc (9), and the same standing round platform (11) is, the damping mechanisms are arranged at four corners of the bottom of the box body (4), each damping mechanism comprises a support box (12) welded on the outer wall of the top of the base (1), a support column (13) inserted into the support box (12), a plurality of fixing grooves (14) formed in the inner wall of one side of the support column (13) at equal intervals, a first damping spring (15) sleeved on the support column (13) and two second damping springs (16) welded on the inner wall of the bottom of the support box (12), two mounting plates (17) are welded on the outer wall of the top of the base (1), two locking mechanisms are arranged on the two mounting plates (17), each locking mechanism comprises a screw rod (20), a threaded sleeve (22) sleeved on the screw rod (20), an L-shaped insert rod (23) welded on the outer wall of the top of the threaded sleeve (22) and a belt pulley (21) sleeved on the screw rod (20), two the equal fixed mounting in one side outer wall that mounting panel (17) kept away from each other has motor storehouse (18), and one side inner wall in two motor storehouses (18) all installs servo motor (19), two through the bolt the output shaft of servo motor (19) all is connected with two of them lead screw (20) respectively through the shaft coupling.
2. The elevating platform for stage lecture in theater according to claim 1, wherein the transmission shaft (7) is connected with the top inner wall and the bottom inner wall of the cabinet (4) through two bearings, respectively, and the output shaft of the driving motor (5) is connected with the top inner wall of the cabinet (4) through a bearing.
3. The elevating platform for stage lecture in theatre according to claim 1, wherein the first gear (6) and the second gear (8) are both located in the box (4), the first gear (6) and the second gear (8) are engaged with each other, the effective number of teeth of the second gear (8) is about 3.6 times that of the first gear (6), and a reducer is provided on the output shaft of the driving motor (5).
4. The elevating platform for stage lecture in theatre as claimed in claim 1, wherein the top inner wall of the support box (12) is provided with a jack adapted to the support column (13), and the outer wall of the support column (13) is slidably connected to the inner wall of the jack.
5. The elevating platform for stage lectures in theatre as claimed in claim 1, wherein the outer walls of both ends of the first damping spring (15) are welded to the outer wall of the bottom of the box body (4) and the outer wall of the top of the supporting box (12), respectively, and the outer walls of the top ends of the two second damping springs (16) are welded to the outer wall of the bottom of the supporting column (13).
6. The elevating platform for stage lecture in theatre as claimed in claim 1, wherein the screw rod (20) is connected with the mounting plate (17) and one side of the inner wall of the supporting box (12) through two bearings, the outer wall of one end of the L-shaped insert rod (23) extends into one of the fixing slots (14), and the two sets of belt pulleys (21) are connected through a belt drive.
7. The elevating platform for stage lecture in theatre according to claim 1, wherein one side of the support box (12) is provided with a limit insert channel adapted to the L-shaped insert rod (23), and the outer wall of the L-shaped insert rod (23) is slidably connected with the inner wall of the limit insert channel.
8. The elevating platform for stage lecture in theatre as claimed in claim 1, wherein the servo motor (19) is connected with a reversing switch through a wire, and the reversing switch is connected with a power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011385354.4A CN112554611A (en) | 2020-12-02 | 2020-12-02 | Elevating platform is used in theatre stage speech |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011385354.4A CN112554611A (en) | 2020-12-02 | 2020-12-02 | Elevating platform is used in theatre stage speech |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112554611A true CN112554611A (en) | 2021-03-26 |
Family
ID=75046055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011385354.4A Pending CN112554611A (en) | 2020-12-02 | 2020-12-02 | Elevating platform is used in theatre stage speech |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112554611A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319952A (en) * | 2022-01-11 | 2022-04-12 | 济南民发液压机械有限公司 | Lifting rotary type stage display stand |
| CN115028107A (en) * | 2022-06-23 | 2022-09-09 | 武汉船用机械有限责任公司 | Lifting device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160345722A1 (en) * | 2015-05-29 | 2016-12-01 | Hangzhou Dechang Hardware & Furniture Co., Ltd. | Electric lifting device |
| CN207122149U (en) * | 2017-09-06 | 2018-03-20 | 深圳市默睿文化创意有限公司 | A kind of lifting rotation stage |
| CN108320636A (en) * | 2018-01-22 | 2018-07-24 | 佛山杰致信息科技有限公司 | A kind of physics teaching buoyancy experiment equipment |
| CN208058306U (en) * | 2018-04-19 | 2018-11-06 | 漳州市泰源环保科技有限公司 | A kind of adjustable water pump support device |
| CN209149673U (en) * | 2018-08-21 | 2019-07-23 | 苏州山湖精密机械科技有限公司 | A kind of precision die facilitating demonstration displaying device |
| CN110040333A (en) * | 2019-03-20 | 2019-07-23 | 珠海建峰化工产品有限公司 | A kind of Multifunctional storage device shown for chemical products |
| CN209353805U (en) * | 2018-12-10 | 2019-09-06 | 中恩国际文化发展有限公司 | A kind of lifting rotation stage |
| CN211232245U (en) * | 2019-12-06 | 2020-08-11 | 荣创创意(北京)科技有限公司 | Sand table for exhibition hall |
| CN211341955U (en) * | 2019-11-13 | 2020-08-25 | 江苏金银杏舞台设备有限公司 | Underwater lifting revolving stage |
| EP3715314A1 (en) * | 2019-03-29 | 2020-09-30 | Arrival Limited | Lifting apparatus supported by two wheel automatic guided vehicles |
-
2020
- 2020-12-02 CN CN202011385354.4A patent/CN112554611A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160345722A1 (en) * | 2015-05-29 | 2016-12-01 | Hangzhou Dechang Hardware & Furniture Co., Ltd. | Electric lifting device |
| CN207122149U (en) * | 2017-09-06 | 2018-03-20 | 深圳市默睿文化创意有限公司 | A kind of lifting rotation stage |
| CN108320636A (en) * | 2018-01-22 | 2018-07-24 | 佛山杰致信息科技有限公司 | A kind of physics teaching buoyancy experiment equipment |
| CN208058306U (en) * | 2018-04-19 | 2018-11-06 | 漳州市泰源环保科技有限公司 | A kind of adjustable water pump support device |
| CN209149673U (en) * | 2018-08-21 | 2019-07-23 | 苏州山湖精密机械科技有限公司 | A kind of precision die facilitating demonstration displaying device |
| CN209353805U (en) * | 2018-12-10 | 2019-09-06 | 中恩国际文化发展有限公司 | A kind of lifting rotation stage |
| CN110040333A (en) * | 2019-03-20 | 2019-07-23 | 珠海建峰化工产品有限公司 | A kind of Multifunctional storage device shown for chemical products |
| EP3715314A1 (en) * | 2019-03-29 | 2020-09-30 | Arrival Limited | Lifting apparatus supported by two wheel automatic guided vehicles |
| CN211341955U (en) * | 2019-11-13 | 2020-08-25 | 江苏金银杏舞台设备有限公司 | Underwater lifting revolving stage |
| CN211232245U (en) * | 2019-12-06 | 2020-08-11 | 荣创创意(北京)科技有限公司 | Sand table for exhibition hall |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319952A (en) * | 2022-01-11 | 2022-04-12 | 济南民发液压机械有限公司 | Lifting rotary type stage display stand |
| CN114319952B (en) * | 2022-01-11 | 2023-11-24 | 济南民发液压机械有限公司 | Lifting rotary stage display stand |
| CN115028107A (en) * | 2022-06-23 | 2022-09-09 | 武汉船用机械有限责任公司 | Lifting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112554611A (en) | Elevating platform is used in theatre stage speech | |
| CN108962047B (en) | LED display screen fixing frame | |
| CN208573235U (en) | A kind of document shelf with elevating function | |
| CN108777086A (en) | A kind of career planing careers guidance and basic lecture auxiliary device of starting an undertaking | |
| CN213428925U (en) | Single-motor lifting table | |
| CN208988290U (en) | A kind of environment art design teaching displaying device | |
| CN107146477A (en) | A kind of multimedia teaching facility | |
| CN108772452A (en) | A kind of apparatus for bending of the electronic product production convenient for adjusting bending degree | |
| CN108542108B (en) | Electric drive lifting type desk pushing device and desk frame and office desk with same | |
| CN104278858A (en) | Theater with multi-dimension moving auditorium | |
| CN206400852U (en) | A kind of three-dimensional solfeggio instructional device | |
| CN203347285U (en) | Theatre with multi-dimensional movable auditoriums | |
| CN107344465A (en) | A kind of education for computer board of education | |
| CN212541800U (en) | Engineering management bid inviting device | |
| CN211673495U (en) | Traditional culture show experience device | |
| CN211354736U (en) | Holographic showcase of circular cone multimedia | |
| CN114038303A (en) | Detachable building model for design and display | |
| CN107470518A (en) | A kind of Rectangular Spring winding equipment | |
| CN220824055U (en) | Table plate lifting structure | |
| CN216875470U (en) | Teaching platform for lifting type teaching platform | |
| CN219613448U (en) | Lifting bed with lifting adjusting function | |
| CN218698558U (en) | Automatic turnover device for vacuum cavity machining | |
| CN213405568U (en) | Intelligent control exhibition stand based on target identification | |
| CN210667215U (en) | Legal case analysis display device | |
| CN210667255U (en) | Novel special exercise of english listening comprehension device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210326 |
|
| RJ01 | Rejection of invention patent application after publication |