CN213720537U

CN213720537U - Platform for lecture

Info

Publication number: CN213720537U
Application number: CN202021734495.8U
Authority: CN
Inventors: 罗源
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-07-20
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a platform, include: a body and a counterweight assembly; the body includes base, support column and desktop, and the desktop passes through the support column to be connected with the base, and the counter weight subassembly includes first counter weight unit and second counter weight unit, and the mobilizable setting of first counter weight unit is on the base, and the mobilizable setting of second counter weight unit is on the support column to adjust the focus of body. The utility model provides a podium is adjusted the holistic focus of podium through setting up mobilizable counter weight unit to be convenient for remove the transport, place on the inclined plane and also can keep better stability.

Description

Platform for lecture

Technical Field

The utility model relates to an education device design field especially relates to a podium.

Background

The education and teaching problems are always paid extensive attention to all the social circles, and the education development is more important in the social development. The teaching mode that gives lessons that teacher and student are face-to-face is usually taken to current education and teaching system, normal classroom teaching mode promptly, and wherein the podium is the indispensable apparatus of teaching in-process, and wherein the stability of guaranteeing the podium is indispensable.

Among the prior art, in order to guarantee the stability of podium, generally can be fixed with the balancing weight through screws etc. in podium base position, increase the holistic weight of podium through the balancing weight, also can reduce the holistic focus of podium simultaneously, also can improve the frictional force on podium and ground simultaneously, the teaching environment that is applicable to that can be better, also improved the holistic stability of podium simultaneously.

However, the center of gravity of the existing platform is fixed, so that the platform is inconvenient to move and carry and is easy to topple when placed on an inclined plane.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a podium, and the focus of podium can be adjusted to be convenient for remove the transport and place on the inclined plane and also can keep better stability.

An embodiment of the utility model provides a podium, include: a body and a counterweight assembly; the body includes base, support column and desktop, and the desktop passes through the support column to be connected with the base, and the counter weight subassembly includes first counter weight unit and second counter weight unit, and the mobilizable setting of first counter weight unit is on the base, and the mobilizable setting of second counter weight unit is on the support column to adjust the focus of body.

In a particular embodiment of the present invention, the first counterweight unit and the second counterweight unit are located within a plane of symmetry of the body.

The utility model discloses an among the concrete implementation manner, first counter weight unit is located the base, and first counter weight unit includes first balancing weight, and the base includes the bottom plate and encloses the curb plate of establishing in bottom plate week side, the upper surface rigid coupling of support column and bottom plate, and the lower surface of bottom plate has the guide rail, and the guide rail is located the plane of symmetry, and first counter weight unit is located the guide rail, and can follow the extending direction removal of guide rail.

In a specific embodiment of the present invention, the first counterweight unit further includes a first transmission assembly, and the first transmission assembly is connected to the first counterweight block to drive the first counterweight block to move.

The utility model discloses an among the embodiment, first drive assembly includes first driving piece, worm wheel and the worm that meshes mutually with the worm wheel, and first driving piece is connected with the worm wheel to drive worm wheel rotation, the axis of worm is parallel with the extending direction of guide rail, and the worm passes through threaded connection with first balancing weight, so that the worm drives first balancing weight and removes.

In a specific embodiment of the present invention, the number of the second weight units is two, and the two second weight units are disposed oppositely.

In a specific embodiment of the present invention, the second counterweight unit includes a second counterweight block and a second transmission assembly, and the second transmission assembly is connected to the second counterweight block to drive the second counterweight block to move along the vertical direction.

The utility model discloses an among the concrete implementation manner, second drive assembly includes second driving piece, hold-in range and synchronizing wheel, and second driving piece and synchronizing wheel are connected with the support column, and the second balancing weight is connected with the hold-in range, and the drive end of second driving piece passes through the hold-in range to be connected with the synchronizing wheel to remove along vertical direction through hold-in range drive second balancing weight.

The utility model discloses an among the concrete implementation manner, the desktop is articulated with the support column, has the third drive assembly on the support column, and the third drive assembly includes third driving piece and the regulation double-screw bolt of being connected with the third driving piece, adjusts the double-screw bolt and passes through threaded connection with the desktop, and the third driving piece is used for the drive to adjust the double-screw bolt rotation to adjust the contained angle between desktop and the horizontal plane.

In the specific embodiment of the utility model, the desktop is a display screen; and/or the second counterweight unit is located within the support column.

The embodiment of the utility model provides a podium through being provided with first counter weight unit and second counter weight unit respectively on one side of base and support column, first counter weight unit can the movable adjustment on the base, and second counter weight unit can the movable adjustment on the support column to the holistic focus of podium is adjusted, has guaranteed the holistic equilibrium of podium. By arranging the movable counterweight unit, the center of gravity of the platform is easy to adjust, and the platform is more convenient to move and carry; when the platform is positioned on the inclined plane, the movable counterweight unit can ensure that the platform is stably fixed on the inclined plane in a balanced manner through the adjustment of the integral gravity center of the platform, so that the stability of the platform is effectively ensured, and the integral safety is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a platform according to an embodiment of the present invention;

fig. 2 is a schematic view of a mechanical model when the platform is placed on a horizontal plane according to an embodiment of the present invention;

fig. 3 is a schematic view of a mechanical model when the platform is on an inclined plane according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a first counterweight unit in a platform according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second counterweight unit in a platform according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a second counterweight unit in another podium provided by the embodiment of the present invention;

fig. 7 is a schematic view illustrating the movement of the counterweight assembly when the platform is at an inclined plane according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a third counterweight unit in a platform according to an embodiment of the present invention.

Description of reference numerals:

10-a body;

11-a base;

111-a backplane;

112-side plate;

113-a guide rail;

12-a support column;

121-a third drive assembly;

1211 — a third driving member;

1212-adjusting the stud;

13-a table top;

20-a counterweight assembly;

21-a first counterweight unit;

211-a first weight;

212 — a first transmission assembly;

2121-a first drive member;

2122-worm gear;

2123-worm;

22-a second counterweight unit;

221-a second counterweight;

222-a second transmission assembly;

2221-a second driver;

2222-synchronous belt;

2223-synchronizing wheel;

100-a platform;

200-plane of symmetry.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The teaching mode that gives lessons that teacher and student are face-to-face is usually taken to current education and teaching system, normal classroom teaching mode promptly, and wherein the podium is the indispensable apparatus of teaching in-process, and wherein the stability of guaranteeing the podium is indispensable. Among the prior art, in order to guarantee the stability of podium, generally can be fixed with the balancing weight through screws etc. in podium base position, increase the holistic weight of podium through the balancing weight, also can reduce the holistic focus of podium simultaneously, also can improve the frictional force on podium and ground simultaneously, the teaching environment that is applicable to that can be better, also improved the holistic stability of podium simultaneously. However, this method causes the center of gravity of the platform to be fixed, and it is difficult to transport the platform in an inclined manner, and at the same time, because the center of gravity of the platform is fixed, when the platform needs to be placed in an inclined manner (for example, a slope mechanics experiment is performed), or the placing surface of the platform is an inclined surface, the stability of the platform is poor, and the platform is not convenient for teaching.

Based on this, the utility model provides a pair of podium, this podium is adjusted the holistic focus of podium through setting up the removal balancing weight to be convenient for remove the transport and carry out the mechanics experiment.

Fig. 1 is a schematic structural view of a platform according to an embodiment of the present invention; fig. 2 is a schematic view of a mechanical model when the platform is placed on a horizontal plane according to an embodiment of the present invention; fig. 3 is a schematic view of a mechanical model when the platform is located on an inclined plane according to an embodiment of the present invention. As shown in fig. 1 to 3, the present embodiment provides a lectern 100 including a body 10 and a weight assembly 20.

Specifically, the body 10 includes a base 11, a supporting column 12 and a table top 13, the table top 13 is connected to the base 11 through the supporting column 12, the counterweight assembly 20 includes a first counterweight unit 21 and a second counterweight unit 22, the first counterweight unit 21 is movably disposed on the base 11, and the second counterweight unit 22 is movably disposed on the supporting column 12 to adjust the center of gravity of the body 10.

Wherein, one side of base 11 is connected with the one end of support column 12, and the other end of support column 12 is connected with desktop 13, and wherein the one side of being connected with support column 12 in base 11 is the upside, then base 11 provides the support to support column 12 and desktop 13 simultaneously towards the upside. The supporting column 12 is used for connecting the base 11 and the table top 13, and the table top 13 is convenient for placing sundry books and the like during teaching.

Wherein, in order to guarantee the equilibrium of body 10, base 11 generally sets up to flat base, and support column 12 is solid or hollow vertical cylinder, can guarantee that body 10 has certain stability when the level is placed subaerial, and this embodiment does not do the restriction to this.

The counterweight assembly 20 includes a first counterweight unit 21 and a second counterweight unit 22, the first counterweight unit 21 is disposed on the base 11, the second counterweight unit 22 is disposed on the supporting column 12, the first counterweight unit 21 can be movably adjusted on the base 11, the second counterweight unit 22 can be movably adjusted on the supporting column 12, and the center of gravity of the whole body 10 can be adjusted during the movement of the first counterweight unit 21 and the second counterweight unit 22.

Note that the first weight unit 21 is provided on the base 11, wherein the first weight unit 21 may be provided on the upper surface of the base 11, and the first weight unit 21 may move on the upper surface of the base 11; the first weight unit 21 may also be disposed inside the base 11, and the movement of the first weight unit 21 on the base 11 may be completed, which is not limited in this embodiment.

It should be noted that the second counterweight unit 22 is disposed on the supporting column 12, wherein the second counterweight unit 22 may be disposed on an outer surface of the supporting column 12, and the second counterweight unit 22 may also be disposed inside the supporting column 12, and it is only necessary that the second counterweight unit 22 can move relative to the supporting column 12, which is not limited in this embodiment.

The first counterweight unit 21 is movably arranged on the base 11, when the first counterweight unit 21 is arranged on the upper surface of the base 11, the first counterweight unit 21 can be movably connected with the base 11, or directly arranged on the upper surface of the base 11, and when the center of gravity needs to be adjusted, the first counterweight unit 21 is directly moved; when the first counterweight unit 21 is disposed on the lower surface of the base 11 or disposed inside the base 11, a movable member such as a slide rail may be disposed on the bottom surface of the base 11 or inside the base 11, so that the first counterweight unit 21 is connected to the base 11, and the first counterweight unit 21 can move relative to the base 11, which is not limited in this embodiment.

Similarly, the second counterweight unit 22 is movably disposed on the support column 12, and when the second counterweight unit 22 is disposed on the outer side wall of the support column 12, a slide rail, a clamping groove, and the like may be disposed on the outer side wall of the support column 12 to limit the position of the second counterweight unit 22, so as to adjust the center of gravity; when the second counterweight unit 22 is disposed inside the supporting column 12, a sliding slot or the like may be disposed inside the supporting column 12 to facilitate the movement of the second counterweight unit 22, which is not limited in this embodiment.

The weight of the base 11 is G1, the weight of the supporting column 12 is G2, the weight of the table top 13 is G3, the weight of the first weight unit 21 is G4, and the weight of the second weight unit 22 is G5. When the base 11 of the body 10 is placed on a horizontal plane, the mechanical structure of the lectern 100 is as shown in fig. 2. Wherein, the entire mechanics model of the platform 100 adopts a parallelogram structure, thereby ensuring that the body 10 is in a balanced state.

As shown in fig. 3, when the placing surface of the main body 10 is an inclined surface or the main body 10 needs to be placed in an inclined manner (if a slope experiment needs to be performed), the main body 10 is placed on the inclined surface, and the original center of gravity of the main body 10 is shifted in the inclined direction, so that the main body cannot be stably placed by only being supported by the base 11. At this time, the center of gravity of the platform 100 can be adjusted to be in the most stable state in terms of mechanical structure by adjusting the positions of the first counterweight unit 21 and the second counterweight unit 22, that is, the first counterweight unit 21 moves toward the slope direction with respect to the base 11, and the second counterweight unit 22 can properly move downward with respect to the supporting column 12 on the original basis. The weights of the first counterweight unit 21 and the second counterweight unit 22 and the movement amount required for tilting need to be determined through a mechanical balance analysis of the entire platform 100, which is the prior art and will not be described in detail in this embodiment.

When the body 10 is placed on a horizontal plane, the base 11, the support column 12, the tabletop 13, the first counterweight unit 21 and the second counterweight unit 22 together construct an integral mechanical balance system of the platform 100, at the moment, the body 10 is stably placed on the horizontal plane and is not easy to move, the tabletop 13 is convenient to use, teaching articles and the like are convenient to place, or teaching interaction is carried out; when a mechanics experiment is needed, the body 10 is placed in an inclined manner, the original center of gravity of the body 10 is shifted to the inclined direction, and the body cannot be stably placed only by the support of the base 11. At this time, the positions of the first counterweight unit 21 and the second counterweight unit 22 can be adjusted, that is, the first counterweight unit 21 moves towards the slope direction relative to the base 11, and the second counterweight unit 22 can properly move downwards relative to the supporting column 12 on the original basis, so that the center of gravity of the platform 100 is adjusted, the platform is in the most stable state in the mechanical structure, that is, the body 10 can be stably placed on the slope with a certain slope, and the slope experiment can be performed through the tabletop 13.

According to the platform 100 provided by the embodiment, the first counterweight unit 21 and the second counterweight unit 22 are respectively arranged on one sides of the base 11 and the supporting column 12, the first counterweight unit 21 can be movably adjusted on the base 11, and the second counterweight unit 22 can be movably adjusted on the supporting column 12, so that the whole gravity center of the platform 100 is adjusted, and the whole balance of the platform is ensured. By arranging the movable counterweight unit, the gravity center of the platform 100 is easy to adjust, and the platform is more convenient to move and carry; when the platform 100 is located on the inclined plane, for example, during a slope experiment, the movable counterweight unit can be used for stably fixing the platform 100 on the inclined plane in a balanced manner by adjusting the whole gravity center of the platform 100, so that the stability of the platform is effectively guaranteed, and the overall safety is improved.

Various possible configurations and implementations of the podium 100 are described in detail below.

When the first and second weight units 21 and 22 adjust the center of gravity of the platform 100, the adjustment data needs to be combined with a mechanical balance analysis of the entire platform 100, and the entire is to ensure the stability of the platform 100. Optionally, the first and second weight units 21, 22 are located within the plane of symmetry 200 of the body 10.

The body 10 has a symmetry plane 200, and the symmetry plane 200 is a vertical plane that can divide the body 10 into two symmetrical structures, namely the symmetry plane 200 can pass through the front and back sides of the body 10 and divide the body 10 into two symmetrical parts, as shown in fig. 1, and reference numeral 200 in fig. 1 is the symmetry plane 200 of the body 10. Wherein, the first counterweight unit 21 and the second counterweight unit 22 are arranged in the symmetry plane 200 of the body 10, that is, the first counterweight unit 21 moves back and forth on the symmetry plane 200 of the body 10 to adjust the gravity center position of the base 11 on the symmetry plane 200 of the body 10; the second weight unit 22 moves up and down on the symmetrical plane 200 of the support pole 12 to adjust the position of the center of gravity of the support pole 12, thereby adjusting the position of the center of gravity of the body 10 as a whole.

Fig. 4 is a schematic structural view of a first counterweight unit in a platform according to an embodiment of the present invention, as shown in fig. 4, optionally, the first counterweight unit 21 is located in the base 11, the first counterweight unit 21 includes a first counterweight block 211, the base 11 includes a bottom plate 111 and a side plate 112 surrounding the bottom plate 111, the supporting column 12 is fixedly connected to an upper surface of the bottom plate 111, a guide rail 113 is located on a lower surface of the bottom plate 111, the guide rail 113 is located in a vertical plane, the first counterweight unit 21 is located in the guide rail 113, and can move along an extending direction of the guide rail 113.

The base 11 includes a bottom plate 111 and side plates 112 arranged around the bottom plate 111, that is, the bottom plate 111 and the side plates 112 enclose an activity space on the bottom surface of the base 11, and the first counterweight unit 21 is located in the base 11, that is, the first counterweight unit 21 is located in the activity space formed by the bottom plate 111 and the side plates 112 for movement. In addition, a guide rail 113 is arranged in a movable space formed by the bottom plate 111 and the side plate 112, the guide rail 113 is arranged on the lower surface of the bottom plate 111, and the guide rail 113 is also positioned on the symmetrical plane 200 of the body 10, namely the guide rail 113 is positioned on the center line of the body 10 and faces to the front end and the rear end of the body 10; at this time, the first weight unit 21 is located on the guide rail 113, and the first weight unit 21 may be moved in the extending direction of the guide rail 113, that is, the first weight unit 21 may be moved toward both front and rear ends of the body 10 along the guide rail 113 to adjust the position of the center of gravity of the base 11.

When the first counterweight unit 21 is located in the base 11, if the first counterweight block 211 needs to be adjusted, optionally, the first counterweight unit 21 further includes a first transmission assembly 212, and the first transmission assembly 212 is connected to the first counterweight block 211 to drive the first counterweight block 211 to move.

The first weight block 211 and the first transmission assembly 212 are both located in the base 11, and when the first weight block 211 needs to be moved, the first weight block 211 can be moved and adjusted by controlling the first transmission assembly 212.

Optionally, the first transmission assembly 212 includes a first driving member 2121, a worm wheel 2122 and a worm 2123 engaged with the worm wheel 2122, the first driving member 2121 is connected to the worm wheel 2122 to drive the worm wheel 2122 to rotate, an axis of the worm 2123 is parallel to an extending direction of the guide rail 113, and the worm 2123 is in threaded connection with the first weight 211, such that the worm 2123 drives the first weight 211 to move.

The first transmission assembly 212 is configured to transmit the first weight block 211 by engaging a worm wheel 2122 and a worm 2123, and specifically, the first transmission assembly 212 includes a first driving element 2121, a worm wheel 2122, and a worm 2123, the worm wheel 2122 is engaged with the worm 2123, and the worm wheel 2122 is driven by the first driving element 2121 to rotate, so that the worm wheel 2122 also drives the worm 2123 to rotate. The worm 2123 is disposed parallel to the extending direction of the guide rail 113, and the worm 2123 is connected to the first counterweight 211 on the guide rail 113 through a screw thread, that is, when the worm 2123 rotates, because the first counterweight 211 is connected to the worm 2123 through a screw thread, the first counterweight 211 is driven by the worm 2123 when the worm 2123 rotates to move back and forth in the guide rail 113, thereby adjusting the position of the center of gravity of the base 11. The extension direction of the worm 2123 and the extension direction of the guide rail 113 are parallel to each other, so that the first counterweight block 211 can slide smoothly on the guide rail 113 when being driven by the worm 2123.

The first driving component 212 adopts a transmission manner that the worm wheel 2122 and the worm 2123 are matched, so that the first driving member 2121 can better transmit kinetic energy to the first counterweight 211, and is more beneficial to the transmission of a heavy object such as a counterweight.

Fig. 5 is a schematic structural view of the second counterweight unit in the platform according to the embodiment of the present invention, as shown in fig. 5, in order to facilitate adjusting the overall gravity center of the body 10, optionally, the number of the second counterweight units 22 is two, and the two second counterweight units 22 are disposed relatively, that is, the second counterweight units 22 are disposed around the supporting column 12.

Wherein, the second weight units 22 are arranged in the symmetrical plane 200 of the body 10, when there are two second weight units 22 and the two second weight units 22 are symmetrically arranged, that is, the second weight units 22 are respectively arranged on the front side and the rear side of the supporting column 12, so that the supporting column 12 is kept balanced as a whole.

Optionally, the second counterweight unit 22 includes a second counterweight block 221 and a second transmission assembly 222, and the second transmission assembly 222 is connected to the second counterweight block 221 to drive the second counterweight block 221 to move along the vertical direction. In the present embodiment, two second weight units 22 are provided, and the description will be made below with respect to the second weight unit 22a and the second weight unit 22b, in which the second weight unit 22a is provided on the front side of the support column 12 and the second weight unit 22b is provided on the rear side of the support column 12.

Wherein, a second counterweight unit 22a is arranged at the front side of the supporting column 12, and a second counterweight unit 22b is arranged at the rear side opposite to the front side of the supporting column, wherein the second counterweight block 221a and the second transmission component 222a of the second counterweight unit 22a are both arranged at the front side of the supporting column 12, and the second counterweight block 221b and the second transmission component 222b of the second counterweight unit 22b are both arranged at the rear side of the supporting column 12. The second weight block 221a is driven by the second transmission assembly 222a and moves up and down relative to the supporting column 12 at the front side of the supporting column 12, and the second weight block 221b is driven by the second transmission assembly 222b and moves up and down relative to the supporting column 12 at the rear side of the supporting column 12.

Optionally, the second transmission assembly 222 includes a second driving member 2221, a timing belt 2222 and a synchronizing wheel 2223, the second driving member 2221 and the synchronizing wheel 2223 are connected with the support column 12, the second balancing weight 221 is connected with the timing belt 2222, and a driving end of the second driving member 2221 is connected with the synchronizing wheel 2223 through the timing belt 2222 so as to drive the second balancing weight 221 to move along the vertical direction through the timing belt 2222.

Wherein, second driving piece 2221 and synchronizing wheel 2223 in the second transmission subassembly 222 all are connected with support column 12, and the drive end of second driving piece 2221 is connected with the one end of hold-in range 2222, the other end of hold-in range 2222 passes synchronizing wheel 2223 and is connected with second balancing weight 221, hold-in range 2222 promptly, synchronizing wheel 2223 and second balancing weight 221 constitute hold-in range rotating-structure, drive the motion of hold-in range 2222 through second driving piece 2221, thereby drive second balancing weight 221 and remove along vertical direction.

Wherein, fig. 6 is a schematic structural diagram of the second counterweight unit in another podium provided by the embodiment of the present invention, as shown in fig. 6, the second transmission assembly 222 can also constitute a pulley structure to realize the ascending and descending of the second counterweight block 221, the second driving part 2221 and the synchronizing wheel 2223 in the second transmission assembly 222 are both connected with the support column 12, and the driving end of the second driving part 2221 is connected with one end of the synchronous belt 2222, the other end of the synchronous belt 2222 passes through the synchronizing wheel 2223 and is connected with the second counterweight block 221, that is, the synchronous belt 2222, the synchronous wheel 2223 and the second counterweight block 221 constitute a pulley structure, the synchronous belt 2222 is driven by the second driving part 2221 to move, thereby driving the second counterweight block 221 to move along the vertical direction, which this embodiment is not limited.

In order to ensure the moving range of the second balancing weight 221, one end of the synchronizing wheel 2223 should be disposed on the upper side of the second driving member 2221, and the synchronizing wheel 2223 can be disposed to be attached to the top of the supporting column 12, so that the second balancing weight 221 can move in the range of the upper end and the lower end of the supporting column 12, which is not limited in this embodiment.

To enhance aesthetics, the second weight unit 22 is optionally located within the support column 12. That is, the supporting column 12 may be a hollow cylindrical structure, and the second counterweight unit 22 is disposed in the inner space of the supporting column 12, and the second counterweight unit may move up and down in the inner space of the supporting column 12, so as to complete the adjustment of the center of gravity, which is not limited in this embodiment.

Fig. 7 is a schematic view illustrating the movement of the counterweight assembly when the platform is on the inclined plane according to an embodiment of the present invention, as shown in fig. 7, in this embodiment, when the body 10 is placed on the inclined plane, the center of gravity of the whole body 10 is oriented to the inclined direction, and at this time, the body 10 is unstable to be placed and is easy to topple over. At this time, the center of gravity of the body 10 as a whole needs to be moved backward, thereby ensuring the balance and stability of the body 10. At this time, the moving distance and the moving direction of the first and second counterweight units 21 and 22 are determined through the mechanical balance analysis of the whole platform 100 according to the weights and the inclined angles of the first and second counterweight units 21 and 22, and when the body 10 is placed obliquely, the first counterweight 211 located in the base 11 slides backwards relative to the base 11, so as to move the center of gravity of the base 11 backwards; in addition, the second weight block 221a located on the front surface of the supporting column 12 moves upward, and the second weight block 221b located on the rear surface of the supporting column 12 moves downward, so that the center of gravity of the whole body 10 moves backward, and the stability of the body 10 placed on the inclined plane is ensured.

Fig. 8 is a schematic structural view of a third counterweight unit in a podium provided by an embodiment of the present invention, as shown in fig. 8, optionally, the table top 13 is hinged to the supporting column 12, the supporting column 12 has a third driving component 121, the third driving component 121 includes a third driving member 1211 and an adjusting stud 1212 connected to the third driving member 1211, the adjusting stud 1212 is connected to the table top 13 through a thread, and the third driving member 1211 is used for driving the adjusting stud 1212 to rotate so as to adjust an included angle between the table top 13 and a horizontal plane.

Specifically, one end of the table top 13 is hinged to the supporting column 12, that is, the other end of the table top 13 can rotate around the hinged end with the supporting column 12, so as to adjust the angle of the table top 13. In order to facilitate the adjustment of the angle of table top 13, a third driving assembly 121 is disposed on the supporting column 12, the third driving assembly 121 includes a third driving member 1211 and an adjusting stud 1212 connected to the third driving member 1211, wherein the adjusting stud 1212 is threadedly connected to the back of the table top 13, and when the adjusting stud 1212 rotates, the table top 13 can be unscrewed and jacked up or screwed to fit, thereby completing the angle adjustment of the table top 13. In addition, the adjusting screw 1212 is driven by the third driving member 1211, and the third driving member 1211 drives the adjusting screw 1212 to rotate, so as to complete the adjustment of the angle of the tabletop 13.

It should be noted that the first driving member 2121, the second driving member 2221, and the third driving member 1211 in the above embodiments may be driving members such as motors, for example, toothed stepping motors, etc., which can ensure the power output of the adjusting stud 1212, the worm wheel 2122, the timing belt 2222, etc., and the present embodiment is not limited thereto.

It should be noted that, when the angle of the table top 13 is adjusted, the weight G3 of the table top 13 may also change in mechanical structure, that is, after the angle of the table top 13 is adjusted, the first counterweight unit 21 and the second counterweight unit 22 also need to be disposed to ensure the balance of the platform 100 as a whole, which is not limited in this embodiment. To increase the utility and versatility of the lectern 100, the desktop 13 is optionally a display screen. The desktop 13 can be a touch display screen or the like, and is used as an interactive end for multimedia teaching, so that teaching convenience is improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A podium, comprising: a body and a counterweight assembly;

the body includes base, support column and desktop, the desktop pass through the support column with the base is connected, the counter weight subassembly includes first counter weight unit and second counter weight unit, the mobilizable setting of first counter weight unit is in on the base, just the mobilizable setting of second counter weight unit is in on the support column, in order to adjust the focus of body.

2. A podium according to claim 1, wherein the first and second weight units are located within a plane of symmetry of the body.

3. The platform according to claim 2, wherein the first weight unit is located in the base, the first weight unit includes a first weight block, the base includes a bottom plate and a side plate surrounding the bottom plate, the support column is fixedly connected to the upper surface of the bottom plate, the lower surface of the bottom plate has a guide rail, the guide rail is located in the symmetry plane, and the first weight unit is located in the guide rail and can move along the extending direction of the guide rail.

4. The podium of claim 3, wherein the first counterweight unit further comprises a first transmission assembly coupled to the first counterweight block to drive movement of the first counterweight block.

5. The platform as claimed in claim 4, wherein the first transmission assembly includes a first driving member, a worm wheel and a worm engaged with the worm wheel, the first driving member is connected with the worm wheel to drive the worm wheel to rotate, an axis of the worm is parallel to an extending direction of the guide rail, and the worm is connected with the first weight block through a screw thread, so that the worm drives the first weight block to move.

6. The podium of claim 2, wherein the number of second weight units is two, the two second weight units being disposed opposite to each other.

7. The podium of claim 6, wherein the second weight unit includes a second weight block and a second transmission assembly connected to the second weight block to drive the second weight block to move in a vertical direction.

8. The platform of claim 7, wherein the second transmission assembly comprises a second driving member, a synchronous belt and a synchronous wheel, the second driving member and the synchronous wheel are connected to the supporting column, the second counterweight block is connected to the synchronous belt, and a driving end of the second driving member is connected to the synchronous wheel through the synchronous belt so as to drive the second counterweight block to move in a vertical direction through the synchronous belt.

9. The platform of claim 1, wherein the tabletop is hinged to the support column, the support column has a third driving assembly thereon, the third driving assembly includes a third driving member and an adjusting stud connected to the third driving member, the adjusting stud is connected to the tabletop via a screw thread, and the third driving member is configured to drive the adjusting stud to rotate so as to adjust an included angle between the tabletop and a horizontal plane.

10. A platform according to any of claims 1 to 9, wherein the desktop is a display screen; and/or the second counterweight unit is located within the support column.