Lifting type learning table
Technical Field
The utility model belongs to the technical field of desks, and relates to a lifting type study desk.
Background
At present, a plurality of lifting learning tables exist on the market, and the height of the table plate is adjusted by adjusting the length of the table legs. Such a study table generally includes supporting component and sets up the table on supporting component, supporting component include fixed spike and movable spike, the movable spike sets up on fixed spike along vertical direction activity, the table sets firmly on movable spike to through adjusting the height of movable spike relative fixed spike, thereby realize adjusting the height of table.
The common adjusting mode is that a plurality of threaded holes are formed in the movable supporting leg at intervals vertically, and an inserting hole is formed in the fixed supporting leg. The desk plate is lifted, the position of the jack corresponds to the position of one of the threaded holes, and the jack is screwed and fixed with the threaded hole through the fastener or the handle, so that the height of the desk plate is adjusted.
The adjusting mode is time-consuming and labor-consuming to operate, the height of each table leg needs to be fixed respectively, and the adjusting mode is complex and tedious and difficult to operate independently for children.
The prior lifting learning desk generally has only one or two desk legs, when the area of the desk board is large, the supporting mode of the two desk legs is unstable, and when articles on the desk board are placed too much and too heavy, the desk board can tilt and shake, and the like.
Disclosure of utility model
The utility model aims to solve the problems of the prior lifting learning table, and provides a learning table which is convenient to adjust and can synchronously adjust the height of each table leg.
The aim of the utility model can be achieved by the following technical scheme:
The lifting type learning table comprises a supporting component and a table board arranged on the supporting component, wherein the supporting component comprises fixed supporting feet and movable supporting feet, the movable supporting feet are movably arranged on the fixed supporting feet along the vertical direction, and the table board is fixedly arranged on the movable supporting feet;
The lifting connecting structure comprises a screw rod rotatably arranged in the movable supporting leg, a nut fixedly connected with the fixed supporting leg, a lower umbrella tooth fixedly connected with the screw rod, and a transmission umbrella tooth I horizontally rotatably arranged on the movable supporting leg, wherein the transmission umbrella tooth I is meshed with the lower umbrella tooth to drive the screw rod to rotate and drive the movable supporting leg to lift;
A transmission connection structure is arranged between two adjacent groups of support assemblies, and comprises a transmission shaft and a transmission bevel gear II which is horizontally and rotatably arranged on the movable supporting leg, and two ends of the transmission shaft are respectively fixedly connected with the transmission bevel gear I or the transmission bevel gear II on the two adjacent groups of support assemblies;
One group of supporting components is also provided with a handle, the handle is rotationally arranged on the movable supporting leg of the supporting component and is fixedly connected with the first transmission bevel gear, the handle is rotated to drive the first transmission bevel gear, the lower bevel gear and the screw rod to rotate so as to drive the movable supporting leg to lift, and simultaneously, the transmission bevel gear on the other three groups of supporting components is synchronously driven to rotate through the transmission shaft so as to enable the four groups of movable supporting legs to lift synchronously.
In the above lifting learning desk, the top of the movable supporting leg is fixedly provided with a mounting seat, and the first transmission bevel gear, the second transmission bevel gear and the lower bevel gear are rotatably arranged on the mounting seat.
In the lifting learning desk, the movable supporting legs are hollow square tubes, and the movable supporting legs are sleeved on the peripheries of the fixed supporting legs.
In the lifting learning desk, the two fixed supporting feet are in a group, the two fixed supporting feet on the left side and the two fixed supporting feet on the right side are connected through a transverse pipe, and the vertical fixed supporting feet are connected with the horizontal transverse pipe through a 90-degree elbow.
In the above-mentioned lifting learning desk, among the four movable supporting feet, a connecting pipe is fixedly arranged between two movable supporting feet, and an inverted U-shaped frame structure is formed by enclosing four groups of supporting components and the connecting pipe, wherein the opening end of the U-shaped frame structure is used as a seating opening for a user.
In the lifting learning table, the first transmission bevel gear and the lower bevel gear are arranged on the support components on the left side and the right side of the seat, and the first transmission bevel gear, the second transmission gear and the lower bevel gear are arranged on the other two support components.
In the lifting learning table, the first transmission umbrella teeth on the support assemblies on the left side and the right side of the seat are fixedly connected with the first transmission umbrella teeth on the adjacent support assemblies through transmission shafts, and the second transmission umbrella teeth on the other two groups of support assemblies are fixedly connected through transmission shafts.
In the above lifting learning desk, the transmission shaft on one of the supporting components on the left side and the right side of the seat is extended outwards to form an extension section after passing through the transmission bevel gear, and the handle is fixedly arranged at the end part of the extension section.
In the lifting learning table, the section of the transmission shaft is non-circular, the first transmission umbrella tooth and the second transmission umbrella tooth are provided with mounting holes, and the section of the mounting holes is matched with the section of the transmission shaft.
Compared with the prior art, the lower bevel gear in each supporting component is driven by the first transmission gear to synchronously rotate, the second transmission gear is connected by the other transmission shaft to synchronously rotate, and the first transmission gear meshed with the second transmission gear is driven by the second transmission gear to synchronously rotate, so that four groups of movable supporting feet can synchronously lift.
Drawings
FIG. 1 is a schematic view of the overall structure of the lift type learning table of the present utility model;
FIG. 2 is a schematic view of the structure of the support assembly of the present utility model;
FIG. 3 is an enlarged schematic view of the internal structure of the mounting base of one of the support assemblies of the present utility model;
FIG. 4 is a schematic diagram of the transmission relationship between a first transmission bevel gear and a second transmission bevel gear, and between the first transmission bevel gear and a second transmission bevel gear;
fig. 5 is an enlarged schematic view of the support assembly of the present utility model.
In the figure, 1, a table board, 2, a fixed supporting leg, 3, a movable supporting leg, 4, a screw rod, 5, a first transmission umbrella tooth, 6, a second transmission umbrella tooth, 8, a handle, 9, a transmission shaft, 10, a mounting seat, 11, a transverse pipe, 12, 90-degree elbow, 13, a connecting pipe, 14 and an extension section.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, the lifting learning desk comprises a supporting component and a desk plate 1 arranged on the supporting component, wherein the supporting component comprises a fixed supporting leg 2 and a movable supporting leg 3, the movable supporting leg 3 is movably arranged on the fixed supporting leg 2 along the vertical direction, and the desk plate 1 is fixedly arranged on the movable supporting leg 3.
As shown in fig. 2 to 4, the supporting components are four groups, a lifting connection structure is arranged between the fixed supporting leg 2 and the movable supporting leg 3 of each group of supporting components, the lifting connection structure comprises a screw rod 4 rotatably arranged in the movable supporting leg 3, a nut fixedly connected with the fixed supporting leg 2, a lower umbrella tooth 6 fixedly connected with the screw rod 4, a transmission umbrella tooth one 5 horizontally rotatably arranged on the movable supporting leg 3, and the transmission umbrella tooth one 5 is meshed with the lower umbrella tooth 6 to drive the screw rod 4 to rotate and drive the movable supporting leg 3 to lift. A transmission connection structure is arranged between two adjacent groups of support components, the transmission connection structure comprises a transmission shaft 9 and a transmission bevel gear II 7 which is horizontally and rotatably arranged on the movable supporting leg 3, and two ends of the transmission shaft 9 are respectively fixedly connected with a transmission bevel gear I5 or a transmission bevel gear II 7 on the two adjacent groups of support components;
One group of supporting components is also provided with a handle 8, the handle 8 is rotatably arranged on the movable supporting leg 3 of the supporting component and fixedly connected with the first transmission bevel gear 5, the handle 8 is rotated to drive the first transmission bevel gear 5, the lower bevel gear 6 and the screw rod 4 to rotate so as to drive the movable supporting leg 3 to lift, and meanwhile, the transmission bevel gear 5 on the other three groups of supporting components is synchronously driven to rotate through the transmission shaft 9 so as to enable the four groups of movable supporting legs 3 to synchronously lift. The top of the movable supporting leg 3 is fixedly provided with a mounting seat 10, and the first transmission umbrella tooth 5, the second transmission umbrella tooth 7 and the lower umbrella tooth 6 are rotatably arranged on the mounting seat 10.
The section of the transmission shaft 9 is non-circular, the first transmission bevel gear 5 and the second transmission bevel gear 7 are provided with mounting holes, and the section of the mounting holes is matched with the section of the transmission shaft 9. The cross-sectional shape of the drive shaft 9 includes regular polygon, semicircle, and the like. The cross-sectional shape of the propeller shaft 9 described in this embodiment is a regular hexagon.
As shown in fig. 5, the movable supporting leg 3 is a hollow square tube, and the movable supporting leg 3 is sleeved on the periphery of the fixed supporting leg 2. The two fixed supporting feet 2 are in groups, the left two fixed supporting feet 2 and the right two fixed supporting feet 2 are connected through a transverse tube 11, and the vertical fixed supporting feet 2 are connected with the horizontal transverse tube 11 through a 90-degree elbow 12. Among the four movable supporting feet 3, a connecting pipe 13 is fixedly arranged between the two movable supporting feet 3, and an inverted U-shaped frame structure is formed by enclosing four groups of supporting components and the connecting pipe 13, and the opening end of the U-shaped frame structure is used as a seating opening of a user.
The support components on the left side and the right side of the seat are only provided with a first transmission bevel gear 5 and a lower bevel gear 6, and the other two support components are respectively provided with the first transmission bevel gear 5, a second transmission gear and the lower bevel gear 6. The first transmission umbrella teeth 5 on the support assemblies on the left side and the right side of the seat are fixedly connected with the first transmission umbrella teeth 5 on the adjacent support assemblies through the transmission shaft 9, and the second transmission umbrella teeth 7 on the other two groups of support assemblies are fixedly connected with each other through the transmission shaft 9. The transmission shaft 9 on one of the supporting components on the left side and the right side of the seat penetrates through the transmission umbrella tooth 5 and then outwards extends to form an extension section 14, and the handle 8 is fixedly arranged at the end part of the extension section 14.
The adjusting mode of the utility model is as follows:
From the support assembly with the handle 8 as the starting end, the frame structure is divided into a first support assembly, a second support assembly, a third support assembly and a fourth support assembly in sequence along the U-shaped frame structure route. The handle 8 is rotated to drive the first transmission umbrella tooth 5 in the first supporting component to rotate, and the first transmission umbrella tooth 5 drives the lower umbrella tooth 6 and the screw rod 4 to rotate, so that the movable supporting leg 3 of the first supporting component is driven to lift;
meanwhile, a transmission shaft 9 fixedly connected with the handle 8 drives a transmission umbrella tooth I5 in the second supporting component to rotate, so that the movable supporting leg 3 of the second supporting component is driven to synchronously lift;
Meanwhile, the first transmission bevel gear 5 in the second support component drives the second transmission bevel gear 7 to rotate, and the second transmission bevel gear 7 is fixedly connected with the second transmission bevel gear 7 in the third support component through the transmission shaft 9 and drives the second transmission bevel gear 7 to rotate, so that the movable supporting leg 3 of the third support component is driven to synchronously lift;
Meanwhile, the first transmission umbrella tooth 5 in the third supporting component is fixedly connected with the first transmission umbrella tooth 5 in the fourth supporting component through the transmission shaft 9 and drives the first transmission umbrella tooth to rotate, so that the movable supporting leg 3 of the fourth supporting component is driven to synchronously lift.
It should be understood that in the claims and the specification of the present utility model, all "including" is to be understood as having an open meaning, i.e. meaning equivalent to "at least containing" and not as having a closed meaning, i.e. meaning not to be understood as "comprising only".
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.