CN216255981U

CN216255981U - Liftable podium

Info

Publication number: CN216255981U
Application number: CN202122200388.8U
Authority: CN
Inventors: 杭韦
Original assignee: Haian Rongke Textile Co Ltd
Current assignee: Haian Rongke Textile Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-12
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to the technical field of teaching equipment and discloses a liftable podium, which comprises a box body, wherein a first driven shaft is rotatably arranged on the back surface of an inner cavity of the box body, a second driven shaft is rotatably arranged on the outer surface of the first driven shaft, a first disc is fixedly arranged on the outer surface of the first driven shaft and positioned behind the second driven shaft, a first annular gear groove is formed in the front surface of the first disc, the liftable podium drives a rotating shaft to rotate by matching a starting motor with a speed reducer, the rotating shaft drives two push rods to simultaneously rotate upwards or downwards by matching a gear, the first annular gear groove and the second annular gear groove with the first disc, the second disc, the first driven shaft and the second driven shaft in the rotating process, the two push rods drive a push rod to move upwards and downwards by matching a first buckle and a connecting rod with a second buckle, and the purpose of lifting the height of the podium is achieved, is convenient for people with different heights to use.

Description

Liftable podium

Technical Field

The utility model relates to the technical field of teaching equipment, in particular to a liftable podium.

Background

The podium generally refers to the platform that the speaker used, and most podium on the existing market are made with timber or metal of fixed length usually, because the podium height is fixed, therefore can't satisfy the speaker's of different heights demand.

When current podium is using, the highly fixed of podium can't adjust the podium to comfortable height relatively according to the height of speaker, when the user of service carries out the speech of a long time, the inconvenient user of ordinary podium is used for supporting in order to reach the purpose of saving physical power, and then has influenced the speech state when the speaker is long-time speech.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a liftable podium, which has the advantages that the podium can be adjusted to a relatively comfortable height according to the height of a podium, the podium is convenient for the podium to save physical strength by means of the support of the podium, and the like, and the problems that the height of the podium is fixed, the podium cannot be adjusted to the relatively comfortable height according to the height of the podium, the podium is inconvenient for the podium to support so as to achieve the purpose of saving physical strength, and further the lecture state of the podium during long-time lecture is influenced are solved.

(II) technical scheme

In order to solve the technical problems, the utility model provides the following technical scheme: a liftable podium comprises a box body, wherein a first driven shaft is rotatably installed on the back surface of an inner cavity of the box body, a second driven shaft is rotatably installed on the outer surface of the first driven shaft, a first disc is fixedly installed on the outer surface of the first driven shaft and positioned behind the second driven shaft, a first annular gear groove is formed in the front surface of the first disc, a second disc is fixedly installed on the outer surface of the second driven shaft, a second annular gear groove is formed in the back surface of the second disc, push rods are fixedly installed at the right end of the first driven shaft and the left end of the second driven shaft, one ends of the two push rods, which are far away from each other, are rotatably installed with connecting rods through a first fastener, ejector rods are rotatably installed at the tops of the two connecting rods through a second fastener, a motor is fixedly installed at the right side of the box body, and a rotating shaft is fixedly installed at the output end of the motor through a speed reducer, the left end of rotation axis runs through the box and extends to the inside of box, the outer fixed surface of rotation axis installs the gear, the internal surface in a ring gear groove and No. two ring gear grooves all meshes with the surface of gear mutually.

Preferably, the top end of the ejector rod penetrates through the box body and extends to the outside of the box body, and the top end of the ejector rod is fixedly provided with the bedplate.

Preferably, the top of the inner cavity of the box body is fixedly provided with two fixed sliding sleeves.

Preferably, the inner surface of the fixed sliding sleeve is in sliding connection with the outer surfaces of the ejector rods, and springs are sleeved on the outer surfaces of the two ejector rods.

Preferably, the top of the spring is fixedly connected with the bottom of the bedplate, and the bottom of the spring is fixedly connected with the top of the box body.

Preferably, the outer surface of the ejector rod is matched with the inner surface of the fixed sliding sleeve, and the front end of the first driven shaft is rotatably connected with the front surface of the inner cavity of the box body.

(III) advantageous effects

Compared with the prior art, the utility model provides a liftable podium, which has the following beneficial effects: this liftable podium accessible starter motor cooperation speed reducer of podium drives the rotation axis rotatory, the rotation axis passes through the gear at rotatory in-process, a ring gear groove and No. two ring gear grooves cooperate No. one disc, No. two discs, No. one driven shaft and No. two driven shafts drive two push rods and upwards or rotate downwards simultaneously, two push rods move the ejector pin through a buckle and connecting rod cooperation No. two buckles and reciprocate, cooperate fixed sliding sleeve and the steady platen of spring to carry out lift adjustment when reciprocating through the ejector pin.

1. This liftable podium, it is rotatory to drive the rotation axis through starter motor cooperation speed reducer, the rotation axis passes through the gear at rotatory in-process, a ring type gear groove and No. two ring type gear groove cooperations No. one disc, No. two discs, a driven shaft and No. two driven shafts drive two push rods and upwards or rotate downwards simultaneously, two push rods pass through a buckle and connecting rod cooperation No. two buckles and move the ejector pin and reciprocate, the purpose that highly goes up and down to the podium has been reached, the people of being convenient for different heights use, make things convenient for the podium to borrow the podium to support and save physical power, the state of lecture of the podium when long-time lecture has been improved.

2. This liftable podium, through the fixed sliding sleeve of ejector pin cooperation and the steady platen of going up and down to adjust when reciprocating of spring, avoided the podium to appear the problem of rocking when going up and down, guaranteed the stability of podium when going up and down to adjust.

Drawings

FIG. 1 is a front view of the internal structure of the present invention;

FIG. 2 is a top view of the external structure of the first driven shaft, the second driven shaft, the first disc, the second disc, the rotating shaft, the gear and the push rod of the present invention;

fig. 3 is a perspective view of the external structure of the present invention.

In the figure: 1. a box body; 2. a first driven shaft; 3. a second driven shaft; 4. a first disc; 5. a first annular gear groove; 6. a second disc; 7. a second annular gear groove; 8. a push rod; 9. a first buckle; 10. a connecting rod; 11. a second buckle; 12. a top rod; 13. a motor; 14. a rotating shaft; 15. a gear; 16. a platen; 17. fixing the sliding sleeve; 18. a spring.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a liftable speech table comprises a box body 1, a first driven shaft 2 is rotatably mounted on the back surface of an inner cavity of the box body 1, a second driven shaft 3 is rotatably mounted on the outer surface of the first driven shaft 2, a first disc 4 is fixedly mounted on the outer surface of the first driven shaft 2 and behind the second driven shaft 3, a first annular gear groove 5 is formed in the front surface of the first disc 4, a second disc 6 is fixedly mounted on the outer surface of the second driven shaft 3, a second annular gear groove 7 is formed in the back surface of the second disc 6, push rods 8 are fixedly mounted on the right end of the first driven shaft 2 and the left end of the second driven shaft 3, connecting rods 10 are rotatably mounted on the mutually far ends of the two push rods 8 through a first buckle 9, ejector rods 12 are rotatably mounted on the tops of the two connecting rods 10 through a second buckle 11, a motor 13 is fixedly mounted on the right side of the box body 1, the motor 13 is electrically connected with an external power supply and can rotate forwards and backwards, the motor 13 is controlled by a PLC (programmable logic controller), the output end of the motor 13 is fixedly provided with a rotating shaft 14 through a speed reducer, the left end of the rotating shaft 14 penetrates through the box body 1 and extends into the box body 1, the outer surface of the rotating shaft 14 is fixedly provided with a gear 15, the inner surfaces of the first annular gear groove 5 and the second annular gear groove 7 are respectively meshed with the outer surface of the gear 15, the top end of the ejector rod 12 penetrates through the box body 1 and extends to the outside of the box body 1, the top end of the ejector rod 12 is fixedly provided with a bedplate 16, the top of the inner cavity of the box body 1 is fixedly provided with two fixed sliding sleeves 17, the inner surfaces of the fixed sliding sleeves 17 are slidably connected with the outer surface of the ejector rod 12, the outer surfaces of the two ejector rods 12 are respectively sleeved with a spring 18, the top of the spring 18 is fixedly connected with the bottom of the bedplate 16, and the bottom of the spring 18 is fixedly connected with the top of the box body 1, the outer surface of the ejector rod 12 is matched with the inner surface of the fixed sliding sleeve 17, and the front end of the first driven shaft 2 is rotatably connected with the front surface of the inner cavity of the box body 1.

The working principle is as follows: firstly, when a user needs to adjust the height of a podium, the rotating shaft 14 is driven to rotate by the aid of the starting motor 13 in a matching mode with the speed reducer, the rotating shaft 14 drives the first disc 4 and the second disc 6 to rotate in opposite directions by the aid of the gear 15 in a matching mode with the first annular gear groove 5 and the second annular gear groove 7, the first disc 4 and the second disc 6 drive the two push rods 8 to simultaneously rotate upwards or downwards by the aid of the first driven shaft 2 in a matching mode with the second driven shaft 3 in a reverse rotating process, the push rods 12 are driven to vertically move by the aid of the first buckle 9 and the connecting rod 10 in a matching mode with the second buckle 11 in a same-direction moving process of the two push rods 8, and the bedplate 16 is stably adjusted in a lifting mode by the aid of the fixed sliding sleeve 17 and the spring 18 in a matching mode when the push rods 12 vertically move.

In conclusion, this liftable podium accessible starter motor 13 cooperation speed reducer drives rotation axis 14 rotatory, rotation axis 14 passes through gear 15 at rotatory in-process, a ring gear groove 5 and No. two ring gear grooves 7 cooperation a disc 4, No. two discs 6, No. one driven shaft 2 and No. two driven shafts 3 drive two push rods 8 upwards simultaneously or rotate downwards simultaneously, two push rods 8 cooperate No. two buckles 11 through a buckle 9 and connecting rod 10 and drive ejector pin 12 and reciprocate, cooperate fixed sliding sleeve 17 and the steady platform board 16 of spring 18 to carry out lift adjustment when reciprocating through ejector pin 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a podium of liftable, includes box (1), its characterized in that: the rear side of the inner cavity of the box body (1) is rotatably provided with a first driven shaft (2), the outer surface of the first driven shaft (2) is rotatably provided with a second driven shaft (3), the outer surface of the first driven shaft (2) is fixedly provided with a first disc (4) at the rear part of the second driven shaft (3), the front side of the first disc (4) is provided with a first annular gear groove (5), the outer surface of the second driven shaft (3) is fixedly provided with a second disc (6), the rear side of the second disc (6) is provided with a second annular gear groove (7), the right end of the first driven shaft (2) and the left end of the second driven shaft (3) are both fixedly provided with push rods (8), one ends of the two push rods (8) which are far away from each other are both rotatably provided with connecting rods (10) through a first buckle (9), and the tops of the two connecting rods (10) are both rotatably provided with ejector rods (12) through a second buckle (11), the right side fixed mounting of box (1) has motor (13), the output of motor (13) has rotation axis (14) through speed reducer fixed mounting, the left end of rotation axis (14) runs through box (1) and extends to the inside of box (1), the outer fixed surface of rotation axis (14) installs gear (15), the internal surface of a ring type gear groove (5) and No. two ring type gear grooves (7) all meshes with the surface of gear (15) mutually.

2. The liftable podium of claim 1, wherein: the top end of the ejector rod (12) penetrates through the box body (1) and extends to the outside of the box body (1), and a bedplate (16) is fixedly installed at the top end of the ejector rod (12).

3. The liftable podium of claim 1, wherein: the top of the inner cavity of the box body (1) is fixedly provided with two fixed sliding sleeves (17), and the number of the fixed sliding sleeves (17) is two.

4. The liftable podium of claim 3, wherein: the inner surface of the fixed sliding sleeve (17) is in sliding connection with the outer surface of the ejector rods (12), and springs (18) are sleeved on the outer surfaces of the two ejector rods (12).

5. The liftable podium of claim 4, wherein: the top of the spring (18) is fixedly connected with the bottom of the bedplate (16), and the bottom of the spring (18) is fixedly connected with the top of the box body (1).

6. The liftable podium of claim 5, wherein: the outer surface of the ejector rod (12) is matched with the inner surface of the fixed sliding sleeve (17), and the front end of the first driven shaft (2) is rotatably connected with the front surface of the inner cavity of the box body (1).