CN210842024U - Mechanically controlled lifting lecturer podium - Google Patents
Mechanically controlled lifting lecturer podium Download PDFInfo
- Publication number
- CN210842024U CN210842024U CN201921284279.5U CN201921284279U CN210842024U CN 210842024 U CN210842024 U CN 210842024U CN 201921284279 U CN201921284279 U CN 201921284279U CN 210842024 U CN210842024 U CN 210842024U
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- China
- Prior art keywords
- handle
- tooth
- column
- lecturer
- hole
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Abstract
The utility model discloses a lecturer podium that mechanical control goes up and down, including the base, set up in the base be used for supporting the supporting component of mesa and set firmly in the mesa of supporting component upper end, the last elevating gear that is provided with of supporting component. The utility model discloses a lecturer podium presses the lift of handle drive lift post to drive the mesa through the hand and rises, makes lift post and the last mesa decline through trampling the second handle. Because the utility model discloses reduced the volume of lecturer podium, slowly go up and down through holding the mesa when descending, need not pay out too big strength. The utility model discloses a mechanical transmission goes up and down, and firstly, convenient going up and down does not need the electric drive secondly.
Description
Technical Field
The utility model relates to a podium, specific saying so relates to a lecturer podium that mechanical control goes up and down.
Background
The lecture stations include lecture stations used in various lecture places and lecture stations used by teachers in schools. Once the existing lecture table leaves the factory, the height is fixed, no matter the stature of the lecturer is high or low, the height of the lecture table cannot be adjusted at will, and the discordance of the heights between the lecturer and the lecture table can directly influence the lecture effect.
In the prior art, many podiums are lifted through electric drive, and the podiums lifted through the electric drive have high cost and are overstaffed.
SUMMERY OF THE UTILITY MODEL
To the not enough among the prior art, the to-be-solved technical problem of the utility model lies in providing a lecturer podium that mechanical control goes up and down, and the purpose of designing this lecturer podium is convenient going up and down, does not need to use the electric drive.
In order to solve the technical problem, the utility model discloses a following scheme realizes: the utility model provides a lecturer podium that mechanical control goes up and down, includes the base, set up in the base be used for supporting the supporting component of mesa and set firmly in the mesa of supporting component upper end, the last elevating gear that is provided with of supporting component, this elevating gear includes:
the upright post is fixedly arranged on the upper end surface of the base and is vertical to the base, the upright post is provided with a lifting cavity, two through holes, namely an upper through hole and a lower through hole, are arranged along one outer side surface of the lifting cavity towards the upper end surface, and the left side wall surface and the right side wall surface of the upper through hole are provided with sliding chutes;
the upper end of the lifting column is fixedly connected with the table board, one side surface of the lifting column is provided with a tooth part, and the column body provided with the tooth part is arranged in the lifting cavity in a penetrating way;
the semi-circular gear assembly is arranged on the upper through hole and can drive the lifting column to ascend, and comprises a pressing handle, a connecting shaft, a semi-circular gear, 2 spring seats and 2 first springs, wherein a first shaft sleeve is sleeved on a shaft rod of the connecting shaft, the two ends of the diameter of the first shaft sleeve are fixedly connected with the semi-circular gear and the pressing handle respectively, the side surface of the semi-circular gear is provided with tooth patterns matched with the tooth parts, the two ends of the connecting shaft are inserted into the two sliding grooves, the shaft bodies at the two ends of the connecting shaft are hung with the first springs, the other end of each first spring is fixedly connected to the spring seat, the spring seats are fixedly arranged on the left side wall surface and the right side wall surface of the upper through hole, and the semi-circular gear assembly is pulled away from the tooth parts; the pressing handle extends upwards through the hole outer opening part and exposes a section of handle body outside the upright post;
a fixed column component which is arranged at the lower through hole and can fix the lifting column, the fixed column component comprises a crank, the crank is fixedly connected with a first handle and a second handle through a second shaft sleeve to form an L-shaped part, the second shaft sleeve is axially connected on a shaft sleeve seat and can swing in the same vertical plane along the shaft sleeve seat, the first handle extends leftwards and upwards, the top of the first handle is bent and arranged at the tip part, the tip part is enough clamped into the tooth groove of the tooth part, the second handle extends downwards through the hole outer opening part and exposes a section of handle body outside the upright column, the lower end of the exposed part of the handle body is fixedly connected with a second spring, the other end of the second spring is fixedly connected with the upper plate surface of the base, the second spring is a compression spring, the elastic force of the lifting column always pushes the tip of the first handle against the tooth groove of the tooth part to fix the lifting column, and after the second handle is stepped, the tip of the first handle can be separated from the tooth groove of the tooth part to enable the lifting column to descend.
Furthermore, a linear slide rail is arranged on one side wall surface, far away from the rack tooth part, in the lifting cavity.
Furthermore, the lifting column is a square column, and a sliding groove matched with the linear sliding rail is arranged on the side face, opposite to the tooth part, of the square column.
Furthermore, the bottom end of the lifting column is provided with a limiting anti-falling block.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a lecturer podium presses the lift of handle drive lift post to drive the mesa through the hand and rises, makes lift post and the last mesa decline through trampling the second handle. Because the utility model discloses reduced the volume of lecturer podium, slowly go up and down through holding the mesa when descending, need not pay out too big strength. The utility model discloses a mechanical transmission goes up and down, and firstly, convenient going up and down does not need the electric drive secondly.
Drawings
Fig. 1 is a view of the outline of the lecture platform of the present invention.
Fig. 2 is a schematic view of the lifting device of the present invention.
Fig. 3 is a schematic view of the structure of the chute position and the mounting position of the first spring according to the present invention.
Fig. 4 is a schematic view of the mounting structure of the second spring of the present invention.
Detailed Description
The technical solution 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, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention. It is obvious that the described embodiments of the invention are only some of the embodiments of the invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Embodiment 1, the utility model discloses a specific structure as follows:
referring to fig. 1-4, the utility model discloses a lecturer podium that mechanical control goes up and down, including base 1, set up in base 1 and be used for supporting the supporting component of mesa 4 and set firmly in mesa 4 of supporting component upper end, be provided with elevating gear on the supporting component, this elevating gear includes:
the upright post 2 is fixedly arranged on the upper end surface of the base 1 and is vertical to the base 1, the upright post 2 is provided with a lifting cavity, two through holes, namely an upper through hole and a lower through hole, are arranged on one outer side surface along the lifting cavity, and sliding grooves 52 are formed in the left side wall surface and the right side wall surface of the upper through hole;
the upper end of the lifting column 3 is fixedly connected with the table top 4, one side surface of the lifting column is provided with a tooth part 31, and a column body provided with the tooth part 31 is arranged in the lifting cavity in a penetrating way;
the semicircular gear assembly 5 is arranged on an upper through hole and can drive the lifting column 3 to ascend, the semicircular gear assembly 5 comprises a pressing handle 55, a connecting shaft 56, a semicircular gear 51, 2 spring seats 54 and 2 first springs 53, a first shaft sleeve is sleeved on a shaft rod of the connecting shaft 56, the semicircular gear 51 and the pressing handle 55 are fixedly connected to two ends of the diameter of the first shaft sleeve respectively, the side face of the semicircular gear 51 is provided with a tooth pattern matched with the tooth part 31, two ends of the connecting shaft 56 are inserted into the two sliding grooves 52, the shaft bodies at two ends are hung with the first springs 53, the other end of the first spring 53 is fixedly connected to the side wall 54 of the spring seat, the spring seats 54 are fixedly arranged on the left side face and the right side face of the upper through hole, and the semicircular gear assembly 5 is pulled away from the tooth part 31 by the first springs 53 when not stressed; the pressing handle 55 extends upwards through the outer opening of the hole and exposes a section of handle body outside the upright post 2;
a fixed column component 6 which is arranged at the lower through hole and can fix the lifting column 3, the fixed column component 6 comprises a crank, the crank is fixedly connected with a first handle 62 and a second handle 61 through a second shaft sleeve to form an L-shaped part, the second shaft sleeve is axially connected with a shaft sleeve seat and can swing in the same vertical plane along the shaft sleeve seat, the first handle 62 extends towards the left upper part, the top part of the first handle is bent and arranged at the tip part, the tip part is enough clamped in the tooth groove of the tooth part 31, the second handle 61 extends downwards through the hole outer opening part and exposes a section of handle body outside the upright post 2, the lower end of the exposed part of the handle body is fixedly connected with a second spring 64, the other end of the second spring 64 is fixedly connected to the upper plate surface of the base 1, the second spring 64 is a compression spring, the elastic force of the first lever 62 always pushes the tip portion of the first lever 62 against the tooth grooves of the tooth portions 31 to fix the lifting column 3, and the tip portion of the first lever 62 can be separated from the tooth grooves of the tooth portions 31 to lower the lifting column 3 after the second lever 61 is stepped on.
A preferred technical solution of this embodiment: and a linear slide rail 21 is arranged on one side wall surface of the lifting cavity far away from the rack tooth part.
A preferred technical solution of this embodiment: the lifting column 3 is a square column, and a sliding groove matched with the linear sliding rail 21 is formed in the side face, opposite to the tooth part, of the square column.
A preferred technical solution of this embodiment: the bottom end of the lifting column 3 is provided with a limiting anti-falling block 32.
Example 2:
the table top is lifted up.
The hand is used for pressing the pressing handle leftwards, so that the connecting shaft on the semicircular gear assembly 5 is located at the left end of the sliding groove 52, the insections on the semicircular gear 51 are meshed with the tooth part 31, the pressing handle 55 is pressed downwards, the lifting column 3 is driven to ascend through the rotation of the semicircular gear 51, and the tip part on the first handle 62 can be clamped into the tooth groove of the tooth part 31 every time the lifting column ascends for a certain distance, so that the lifting column 3 is fixed.
Then the pressing handle 55 is released, the first spring 53 drives the connecting shaft to move rightwards, the semicircular gear 51 is separated from the tooth part 31, the pressing handle 55 is lifted upwards, then the actions are repeated, the lifting column 3 continuously rises, and the proper position is reached, the fixed column assembly 6 fixes the lifting column 3, and the table top 4 is in the proper position.
Example 3:
and (5) lowering the table top.
Because the utility model discloses a to the lecture table design of volume reduction, consequently, the whole weight of mesa 4 and stand 3 is not very heavy, and the adult can hold up completely.
The table top 4 is held by a hand, the foot treads the fixed column component 6, and since the semicircular gear component 5 and the tooth part 31 are in a separated state, after the foot treads the fixed column component 6, the tooth part 31 is opened by the first handle 62, the table top is slowly put down by two hands to reach a proper position, the foot is loosened, and the tip part on the first handle is clamped into the tooth socket of the tooth part 31.
Example 4:
in order to avoid mistakenly stepping on the fixed column assembly 6, an inverted U-shaped frame can be erected at the outer end of the exposed part of the second handle of the fixed column assembly 6, and the U-shaped frame and the exposed part of the second handle are provided with a height capable of extending feet.
To sum up, the utility model discloses a lecturer podium presses the lift drive mesa of handle drive lift post to rise through the hand, makes lift post and the last mesa decline through trampling the second handle. Because the utility model discloses reduced the volume of lecturer podium, slowly go up and down through holding the mesa when descending, need not pay out too big strength. The utility model discloses a mechanical transmission goes up and down, and firstly, convenient going up and down does not need the electric drive secondly.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (4)
1. The utility model provides a lecturer podium that mechanical control goes up and down, includes base (1), set up in base (1) be used for supporting the supporting component of mesa (4) and set firmly in mesa (4) of supporting component upper end, the last elevating gear that is provided with of supporting component, its characterized in that: this elevating gear includes:
the upright post (2) is fixedly arranged on the upper end surface of the base (1) and is vertical to the base (1), the upright post (2) is provided with a lifting cavity, two through holes, namely an upper through hole and a lower through hole, are arranged on one outer side surface along the lifting cavity, and sliding grooves (52) are arranged on the left side wall surface and the right side wall surface of the upper through hole;
the upper end of the lifting column (3) is fixedly connected with the table top (4), one side surface of the lifting column is provided with a tooth part (31), and a column body provided with the tooth part (31) penetrates through the lifting cavity;
the semi-circular gear assembly (5) is arranged on the upper through hole and can drive the lifting column (3) to ascend, the semi-circular gear assembly (5) comprises a pressing handle (55), a connecting shaft (56), a semi-circular gear (51), 2 spring seats (54) and 2 first springs (53), a first shaft sleeve is sleeved on a shaft rod of the connecting shaft (56), the semi-circular gear (51) and the pressing handle (55) are fixedly connected to two ends of the diameter of the first shaft sleeve respectively, the side face of the semi-circular gear (51) is provided with tooth patterns matched with the tooth parts (31), two ends of the connecting shaft (56) are inserted into the two sliding grooves (52), the shaft bodies at two ends of the connecting shaft are hung with the first springs (53), the other ends of the first springs (53) are fixedly connected to the spring seats (54), the spring seats (54) are fixedly arranged on the left and right faces of the upper through hole, and the semi-circular gear assembly (5) is pulled away from the tooth parts (31) by the first springs (53) when not stressed; the pressing handle (55) extends upwards through the hole outer opening part and exposes a section of handle body outside the upright post (2);
a fixed column component (6) which is arranged at the lower through hole and can fix the lifting column (3), wherein the fixed column component (6) comprises a crank, the crank is fixedly connected with a first handle (62) and a second handle (61) through a second shaft sleeve to form an L-shaped piece, the second shaft sleeve is connected to a shaft sleeve seat in a shaft sleeve way and can swing in the same vertical plane along the shaft sleeve seat, the first handle (62) extends towards the left upper side and the top of the first handle is bent and arranged at the tip part, the tip part is enough clamped into the tooth socket of the tooth part (31), the second handle (61) extends towards the outer opening part of the lower through hole and exposes one section of the handle body to the outside of the upright column (2), the lower end of the exposed part of the handle body is fixedly connected with a second spring (64), the other end of the second spring (64) is fixedly connected to the upper plate surface of the base (1), the second spring (64) is a compression spring, and the elasticity of the second spring always pushes the tip part of the first handle (62) in the tooth socket of the tooth part (31, after the second handle (61) is stepped on, the tip of the first handle (62) can be separated from the tooth groove of the tooth part (31) to enable the lifting column (3) to descend.
2. A mechanically controlled elevating lecturer's lecture table according to claim 1, wherein: and a linear slide rail (21) is arranged on one side wall surface of the lifting cavity far away from the rack tooth part.
3. A mechanically controlled elevating lecturer's lecture table according to claim 2, wherein: the lifting column (3) is a square column, and a sliding groove matched with the linear sliding rail (21) is formed in the side face, opposite to the tooth part, of the square column.
4. A mechanically controlled elevating lecturer's lecture table according to claim 3, wherein: the bottom end of the lifting column (3) is provided with a limiting anti-falling block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921284279.5U CN210842024U (en) | 2019-08-09 | 2019-08-09 | Mechanically controlled lifting lecturer podium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921284279.5U CN210842024U (en) | 2019-08-09 | 2019-08-09 | Mechanically controlled lifting lecturer podium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210842024U true CN210842024U (en) | 2020-06-26 |
Family
ID=71302684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921284279.5U Expired - Fee Related CN210842024U (en) | 2019-08-09 | 2019-08-09 | Mechanically controlled lifting lecturer podium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210842024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114343327A (en) * | 2022-03-21 | 2022-04-15 | 常州市凯迪电器股份有限公司 | Electric lifting upright post, lifting type rostrum, electric lifting table and wiring method |
-
2019
- 2019-08-09 CN CN201921284279.5U patent/CN210842024U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114343327A (en) * | 2022-03-21 | 2022-04-15 | 常州市凯迪电器股份有限公司 | Electric lifting upright post, lifting type rostrum, electric lifting table and wiring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |