CN110477622B - A desk with a tabletop that can hover at any angle - Google Patents

Abstract

The invention discloses a desk with a desk plate capable of hovering at any angle, which comprises a desk plate, a base, a rotating mechanism and a supporting mechanism, wherein the desk plate is hinged with the base through the rotating mechanism, the rotating mechanism provides resistance when the desk plate rotates relative to the base, the supporting mechanism comprises a push-pull assembly and a linkage assembly, a first end of the push-pull assembly is fixedly connected with the base, a second end of the push-pull assembly is rotationally connected with a lower end of the linkage assembly, an upper end of the linkage assembly is hinged with the desk plate, the push-pull assembly is matched with the linkage assembly under the action of driving force to drive the desk plate to overturn and provide supporting force, and the rotating mechanism is matched with the supporting mechanism to provide supporting force to enable the desk plate to hover within any preset angle range. The desk can turn over and hover the desk plate at any angle, is more convenient for a user to operate, and can realize slow descent by applying the downward pressure exceeding a certain force at any angle, so that the desk is safer to use, especially in public places.

Description

A desk with a tabletop that can hover at any angle

Technical Field

The invention relates to the technical field of teaching tools, in particular to a desk with a table top capable of hovering at any angle.

Background Art

Although the existing flip desks can adjust the inclination angle of the table top, they cannot hover at any angle or need manual switch control. When the angle is reduced, there is no slow descent or it needs to be pulled to the top of the angle to descend, or the descending device itself has unsafe factors. For example, in one kind of desk, one end of the table top is rotatably connected to the desk body, and a push-pull component is provided between the table top and the desk body, and the inclination angle of the table top is adjusted by telescopic push-pull component. The push-pull component has multiple telescopic adjustment gears, and each adjustment gear corresponds to a corresponding inclination angle. Therefore, the inclination angle of the table top can only be selected from a few fixed inclination angles. The adjustable angle of the table top inclination is limited. And when the table top is lowered, it needs to be pulled up to the maximum angle before it can be lowered. Moreover, the table top angle adjustment device has the safety risk of pressing hands or objects.

Summary of the invention

The purpose of the present invention is to provide a desk with a table top that can hover at any angle, aiming to solve the problem in the prior art that the table top has a limited tilt adjustment angle and cannot continuously adjust the tilt angle of the table top.

The present invention provides a desk with a table top that can be suspended at any angle, comprising a table top, a base, a rotating mechanism and a supporting mechanism, wherein the table top and the base are connected by the rotating mechanism, the table top and the base are hinged by the rotating mechanism, and the rotating mechanism provides resistance when the table top rotates relative to the base, and the supporting mechanism comprises a push-pull component and a linkage component, the first end of the push-pull component is fixedly connected to the base, the second end of the push-pull component is rotationally connected to the lower end of the linkage component, the upper end of the linkage component is hinged to the table top, the push-pull component cooperates with the linkage component to drive the table top to flip and provide supporting force under the action of a driving force, and the rotating mechanism cooperates with the supporting mechanism to provide supporting force to enable the table top to hover within any preset angle range. By setting the table top supporting mechanism and the rotating mechanism, the table top and the base can be suspended at any angle without level within the adjustment range, which is suitable for people of different heights, thereby increasing the use range of the product and improving the user experience.

Furthermore, the bottom of the second end of the push-pull assembly is rollingly connected to the base, the second end of the push-pull assembly can extend in the direction of the linkage assembly to drive the linkage assembly to rotate and push the table top to flip, the linkage mechanism can tilt to cooperate with the flipping of the table top after being driven by the upward or downward force, and the rotation mechanism cooperates with the support mechanism to provide support force to make the table top hover within any preset angle range. The push-pull assembly is a retractable rod with a certain support force, and the support mechanism cooperates with the rotation mechanism to provide thrust when the table top rises and provide support force when the table top hovers.

Furthermore, the support mechanism comprises a first support mechanism and a second support mechanism which are relatively arranged on both sides of the bottom wall of the table board. The table board support mechanisms are arranged on both sides of the bottom end of the table board, which can make the force of the table board more balanced when tilting and adjusting.

Furthermore, the push-pull components in the first supporting mechanism and the second supporting mechanism are both pneumatic rods; the pneumatic rods are used to push the table top to flip upward under the action of external force and cooperate with the rotating mechanism to provide a supporting force to support the table top to hover, so that the table top can hover at any angle.

Furthermore, in the first supporting mechanism or the second supporting mechanism, one of the push-pull components is a gas pressure rod, and the other push-pull component is a damping rod; the gas pressure rod is used to push the table top to flip upward under the action of an external force and cooperate with the rotating mechanism to provide a supporting force to support the table top to suspend, so that the table top can suspend at any angle; the damping rod is used to cooperate with the rotating mechanism to increase the resistance of the table top to flip downward when the table top is pressed down with a large force, so as to prevent the table top from being quickly pressed to a horizontal plane. The gas pressure rod and the damping rod act at the same time. When the table top is lifted, the gas pressure rod provides a supporting force to reduce the resistance of the table top to lift up. When the table top is pressed down, the damping rod provides resistance to reduce the speed of the table top's descent, reducing the risk of the table top descending too quickly and crushing fingers.

Furthermore, the push-pull assembly includes a screw rod, a nut threadedly connected to the screw rod, and a driving motor connected to one end of the screw rod; one end of the linkage assembly is hinged to the nut, and the other end of the linkage assembly is hinged to the bottom wall of the table board; the driving motor drives the screw rod to rotate so that the nut reciprocates along the screw rod to drive the linkage assembly to rotate and drive the table board to flip. Converting manual drive to electric drive improves the efficiency of table board adjustment and the degree of automation of the table board support mechanism.

Furthermore, the rotating mechanism includes a table top mounting plate, a lower connecting member, and a damping shaft disposed between the table top mounting plate and the lower connecting member, wherein the table top mounting plate is connected to the bottom wall of the table top, the lower connecting member is fixedly connected to the base, and the damping shaft is used to increase the resistance of the table top mounting plate to rotation relative to the lower connecting member. The damping shaft further increases the resistance of the table top rotation, improves the stability of the table top when hovering, and improves the speed of the table top when descending.

Furthermore, a cylindrical support column is provided at one end of the base away from the rotating mechanism, and when the support column abuts against the table top, the table top is in a horizontal state. Providing the support column enables the user to quickly adjust the table top to a horizontal position, which is convenient for the user to use.

Furthermore, a mounting tube is sleeved outside the support mechanism, and the two ends of the support mechanism extend from two ends of the mounting tube respectively. The mounting tube is arranged between the table top and the base, and the lower side of the mounting tube is connected to the base, and a gap is left between the upper side of the mounting tube and the table top. The space between the table top and the mounting tube can prevent fingers from being pinched when the table top is fully pressed down, and the fingers are accommodated in the mounting tube to prevent foreign objects from entering and causing damage to the push-pull assembly, thereby maintaining the overall simplicity and beauty.

Furthermore, the base has a side facing the table top that is concave to form a strip groove, the support mechanism is arranged in the strip groove, the first end of the push-pull assembly is fixedly connected to the inner wall of the strip groove, and the upper end of the linkage mechanism extends from the notch of the strip groove. The push-pull assembly and the linkage assembly are arranged in the strip groove to increase the space between the table top and the base.

Based on the above technical scheme, compared with the prior art, the desk with a table top that can hover at any angle proposed in the embodiment of the present invention, the table top support mechanism arranged between the table top and the base can enable the table top to be freely flipped, hovered, and slowly lowered at any angle between the horizontal and the 60-degree usage angle, and there is no need for flipping and hovering at any angle controlled by a switch, which is more convenient for users' daily operation and use. Applying downward pressure exceeding a certain force at any angle to achieve slow lowering makes the use of the table, especially in public places, safer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a desk with a table top capable of hovering at any angle in Embodiment 1 of the present invention;

FIG2 is a schematic structural diagram of a support mechanism and a rotation mechanism of a desk with a table top capable of hovering at any angle in Embodiment 1 of the present invention;

FIG3 is a schematic diagram of the structure of the mounting tube of the desk whose table top can be suspended at any angle in the first embodiment of the present invention.

FIG. 4 is a schematic diagram of the side structure of the support mechanism of the desk whose table top can be suspended at any angle in the first embodiment of the present invention.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

In addition, it should be noted that the terms such as left, right, up, and down in the embodiments of the present invention are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive. The implementation of the present invention is described in detail below in conjunction with specific embodiments.

Embodiment 1

As shown in Figures 1 and 2, they are respectively a structural schematic diagram of a desk in which the table top can be suspended at any angle in this embodiment and a structural schematic diagram of a support mechanism 2 and a rotating mechanism 15. In this embodiment, the table top 1 adjusts the inclination angle with the base 3 through the support mechanism 2 and the rotating mechanism 15, and provides a supporting force so that the table top 1 can be suspended at any angle. Among them, the rotating mechanism 15 is used to provide resistance to reduce the speed at which the table top 1 rotates relative to the base 3. The support mechanism 2 includes a push-pull component 9 and a linkage mechanism 5. The push-pull component 9 cooperates with the linkage component 5 to drive the table top 1 to flip and provide a supporting force under the action of a driving force. The rotating mechanism 15 cooperates with the support mechanism 2 to provide a supporting force so that the table top 1 can be suspended within any preset angle range. In this embodiment, the angle range of the table top 1 flipping upward relative to the base 3 is: 0~60°. The table top 1 can be tilted and suspended at any angle within the angle range of 0~60°, and has a certain supporting force for users to write and read. The inclination angle is adjustable, and the specific adjustment angle depends on the position of the connection point between the support mechanism 2 and the table top 1, and the specific situation will be described in detail below.

There are two support mechanisms 2, namely: a first support mechanism 21 and a second support mechanism 22. The first support mechanism 21 and the second support mechanism 22 are respectively arranged on the left and right sides of the bottom end of the table top 1. Moreover, the first support mechanism 21 and the second support mechanism 22 are arranged in parallel. Such an arrangement can not only ensure that when the table top 1 is tilted, the force is more balanced and the structure is more stable, but also free up the space between the first support mechanism 21 and the second support mechanism 22 as a table drawer for users to store items.

The support mechanism 2 in this embodiment includes: a linkage assembly 5 and a push-pull assembly 9. The first end 90 of the push-pull assembly 9 is fixedly connected to the base 3, and the second end 93 of the push-pull assembly 9 is rotatably connected to the lower end of the linkage assembly 5. The upper end of the linkage assembly 5 is rotatably connected to the bottom wall of the table top 1. The rotating mechanism 15 includes: a table top mounting plate 4 and a lower connecting member 6. The table top mounting plate 4 is used to mount the table top 1, and the lower end of the lower connecting member 6 is fixedly connected to the base 3. The table top mounting plate 4 is rotatably connected to the upper end of the lower connecting member 6.

Specifically, the table top mounting plate 4 includes a rectangular mounting plate 40 and a connecting portion 41 extending downward perpendicularly to the mounting plate 40 along both sides of the mounting plate 40. The connecting portion 41 is provided with a mounting hole 44, and the mounting hole 44 is used to connect to the lower connecting member 6. A plurality of screw holes 42 are provided on the mounting plate 40. The mounting plate 40 is connected to the table top 1 through the screw holes 42 and the bolts 43. The table top 1 can be removed from the table top mounting plate 4 by the starting bolts 43, which is convenient for the inspection and maintenance of the desk. As shown in Figure 4, a connecting piece 45 is connected to the bottom wall of the mounting plate 40, and the connecting piece 45 is arranged between the two connecting portions 41, and the upper end 51 of the linkage assembly 5 is rotatably connected to the connecting piece 45. Specifically, pin holes are provided on the upper end 51 and the connecting piece 45, and the connecting pin passes through the two pin holes in sequence to rotatably connect the linkage assembly 5 to the connecting piece 45.

In this embodiment, the lower end of the lower connecting member 6 is fixedly connected to one end of the base 3 near the rotating mechanism 15, the table top mounting plate 4 and the lower connecting member 6 are rotationally connected via the damping shaft 10, and the table top 1 is rotationally connected to the base 3 via the table top mounting plate 4 and the lower connecting member 6. Specifically, the damping shaft 10 increases the friction resistance for the rotation between the table top mounting plate 4 and the lower connecting member 6, so as to prevent the table top 1 from descending too fast relative to the base 3 and crushing the user's fingers.

In this embodiment, the damping shaft 10 includes a shaft, a sleeve and an elastic sleeve. One end of the shaft is inserted into the sleeve and can rotate relative to the sleeve. The middle part of the shaft protrudes upward to form a separator, which divides the shaft into a connecting part and a shaft head. The shaft head is semi-cylindrical, and the shaft head is inserted into the sleeve to form a cavity for accommodating the elastic sleeve. The elastic sleeve is sleeved in the cavity between the sleeve and the shaft head. The outer diameter of the elastic sleeve is slightly larger than the inner diameter of the sleeve, so the elastic sleeve and the sleeve form an interference fit. The elastic sleeve is used to increase the friction resistance of the sleeve and the shaft. The elastic sleeve is made of elastic material, and the cross-section of the elastic sleeve can be hexagonal or octagonal, and the diameter of its circumscribed circle is slightly larger than the inner diameter of the sleeve. There are two shafts, and the shaft heads of the two shafts are respectively inserted into the two ends of the sleeve. The end of the connecting part is fixedly connected to the table top mounting plate 4, and the outer wall of the sleeve is fixedly connected to the lower connecting piece 6. The table top mounting plate 4 rotates relative to the lower connecting piece 6 and drives the rotating shaft to rotate relative to the sleeve. Under the resistance of the elastic sleeve, the movement resistance of the rotating shaft relative to the sleeve increases, thereby increasing the resistance to the rotation of the table top mounting plate 4 relative to the lower connecting piece 6.

As shown in FIG. 4 , the upper end 51 of the linkage assembly 5 is rotatably connected to the connecting piece 45 at the bottom of the mounting plate 40. In this embodiment, a pin hole is provided on the end of the upper end 51 of the linkage assembly 5 and the connecting piece 45, and the pin passes through the pin hole at the same time and rotatably connects the linkage assembly 5 with the connecting piece 45, so that the linkage assembly 5 can rotate around the table board mounting plate 4. The end of the mounting plate 40 close to the damping shaft 10 is the front end, and the connection position of the connecting piece 45 and the mounting plate 40 can be set between the middle of the mounting plate 40 and the front end of the mounting plate 40. When the connecting piece 45 is close to the middle of the mounting plate 40, the rotation range of the linkage assembly 5 is small, and the rotation angle of the table board 1 relative to the base 3 is small; when the connecting piece 45 is close to the front end of the mounting plate 40, the rotation range of the linkage assembly 5 is large, and the rotation angle of the table board 1 relative to the base 3 is large. By adjusting the position of the connecting piece 45, the inclination angle of the table board 1 relative to the base 3 can be adjusted. During installation, the connecting piece 45 can be connected to the corresponding position of the mounting plate 40 according to the rotation angle of the table board 1. The connecting piece 45 is connected to the mounting plate 40 by screws. The mounting plate 40 is provided with a plurality of screw holes along its length direction. The connecting piece 45 changes the position of connection with the mounting plate 40 by connecting to screw holes at different positions, thereby adjusting the tilt angle range of the table top 1.

The lower end 52 of the linkage assembly 5 and the top of the second end 93 of the push-pull assembly 9 are both provided with screw holes, and they are rotatably connected by bolts and nuts. The push-pull assembly 9 is a rod with a retractable end, and the second end 93 of the push-pull assembly 9 can be extended or retracted. When the table board mounting plate 4 rotates up and down relative to the lower connecting member 6, the upper end 51 rotates and moves relative to the table board mounting plate 4, and then drives the lower end 52 to rotate and move relative to the second end 93 of the push-pull assembly 9. When the table board 1 is pulled up, the table board mounting plate 4 rotates clockwise relative to the lower connecting member 6, drives the upper end 51 to move upward and rotate counterclockwise relative to the table board mounting plate 4. At the same time, the lower end 52 moves to the right and rotates counterclockwise relative to the second end 93 of the push-pull assembly 9 and stretches the push-pull assembly 9 to extend it. When the table board 1 is pressed down, the table board mounting plate 4 rotates counterclockwise relative to the lower connecting member 6, drives the upper end 51 to move downward and rotate clockwise relative to the table board mounting plate 4. At the same time, the lower end 52 moves to the left and rotates clockwise relative to the second end 93 of the push-pull assembly 9 and compresses the push-pull assembly 9 to shorten it.

In this embodiment, the push-pull assembly 9 in the first support mechanism 21 is a pneumatic rod 91, which includes a pressure sleeve and a telescopic rod. The front end of the telescopic rod can extend or retract from the pressure sleeve, and the pressure sleeve and the telescopic rod are sealed. The bottom end of the pressure sleeve is a fixed end, and the front end of the telescopic rod is a movable end. The bottom end of the pressure sleeve is fixed to the base, and the front end of the telescopic rod is rotatably connected to the lower end 52 of the linkage assembly 5. The pneumatic rod 91 is a rod that can withstand a certain pressure and can extend when subjected to a certain tension. When a tension is applied to the pneumatic rod 91, the movable end of the pneumatic rod 91 extends outward. When the applied tension reaches a certain value, exceeding the starting tension of the pneumatic rod 91, the pneumatic rod 91 can generate an upward supporting force. Therefore, when the tension stops being applied, the movable end of the pneumatic rod 91 can provide a certain supporting force, which is greater than the gravity of the table board 1, and the supporting force supports the table board 1 through the linkage assembly 5.

When the table top 1 is in a horizontal state, that is, when the angle θ between the table top mounting plate 4 and the horizontal plane is 0°, the pneumatic rod 91 is in a fully retracted state. When the table top needs to be lifted for reading or writing, an upward flipping force is applied to the table top 1. When the force exceeds the starting pulling force of the pneumatic rod 91, the pneumatic rod 91 generates a supporting force, and the movable end of the pneumatic rod 91 drives the lower end 52 of the linkage assembly 5 to move to the right, while the upper end 51 of the linkage assembly 5 moves upward, and drives the table top mounting plate 4 to rotate clockwise relative to the lower connecting member 5. At this time, the table top 1 rises slowly, and the inclination angle θ between the table top 1 and the horizontal plane gradually increases. When θ reaches 60° or the inclination angle of the table top 1 reaches the angle required by the user, stop applying force to the table top, the length of the pneumatic rod 91 is fixed, and the table top mounting plate 4 and the table top 1 are supported. At the same time, the damping shaft 10 between the table top mounting plate 4 and the lower connecting member 6 also provides partial supporting force, cooperating with the pneumatic rod 91 to prevent the table top from falling. Specifically, when the table top 1 flips upward, the force direction of the damping shaft 10 is opposite to the supporting force direction, preventing the supporting force of the gas pressure rod 91 from being too large, and preventing the table top 1 from directly flipping to the maximum angle. When the table top is suspended, the supporting force direction of the damping shaft 10 and the gas pressure rod 91 are the same. The damping shaft 10 cooperates with the gas pressure rod 91 to provide the supporting force to support the table top 1 to hover, and the user can write or read on the table top.

The push-pull assembly 9 in the second support mechanism 22 is a damping rod 92, which includes an elastic sleeve and a retractable rod. The front end of the retractable rod can extend or retract from the elastic sleeve. A tension spring is provided in the elastic sleeve to pull the rear end of the retractable rod into the elastic sleeve. The bottom end of the elastic sleeve is a fixed end, and the front end of the retractable rod is a movable end. The bottom end of the elastic sleeve is fixedly connected to the base, and the front end of the retractable rod is rotatably connected to the lower end 52 of the linkage assembly 5.

During the descent process, the damping rod 92 generates an upward supporting force to prevent the table top 1 from falling quickly. When the user needs to flatten the hovering desk downward, a downward force is applied to the table top 1. When the force exceeds the supporting force of the gas pressure rod 91 and the damping shaft 10, the table top 1 begins to flip downward. When the table top 1 drops to a certain angle, the resistance of the damping rod 92 decreases. At this time, the upward supporting force of the damping rod 92 works together with the supporting force of the gas pressure rod 91 and the resistance of the damping shaft 10 to reduce the speed of the table top 1 and prevent the table top from falling quickly. In summary, the linkage assembly 5, the gas pressure rod 91, the damping rod 92 and the damping shaft 10 work together to enable the inclination angle θ of the table top 1 to be arbitrarily rotated and tilted within the range of 0 to 60°, and to hover at any angle and provide sufficient supporting force for the table top 1.

It should be understood that the above-mentioned technical effect can also be achieved when the push-pull component in the first support mechanism 21 is a damping rod and the push-pull component in the second support mechanism 22 is a pneumatic rod.

In a new embodiment, the push-pull components in the first support mechanism 21 and the second support mechanism 22 are both pneumatic rods. The supporting force provided by the pneumatic rods in cooperation with the damping shaft is large enough to support the table top to hover at any angle. When the table top needs to be flipped downward, the table top is pressed down with a force greater than the supporting force of the pneumatic rods, which can also achieve the downward flipping of the table top.

A pulley 11 is also provided at the bottom of the second end 93 of the push-pull assembly 9, and the pulley 11 abuts against the base 3 and rolls on the base 3. When the second end 93 of the push-pull assembly 9 is extended or retracted, the pulley 11 rolls on the base 3 driven by the push-pull assembly 9, which, on the one hand, provides support for the second end 93 of the push-pull assembly, and on the other hand, improves the user's comfort. Further, a pulley connector 14 is also provided at the second end 93 of the push-pull assembly 9, and the bottom end of the pulley connector 14 is connected to the rotating shaft of the pulley 11.

Further, as shown in FIG3 , the linkage assembly 5 and the push-pull assembly 9 are provided with a mounting tube 8, and the mounting tube 8 is provided between the base 3 and the table top 1. The lower side wall of the mounting tube 8 is fixedly connected to the base 3. The first end 90 of the push-pull assembly 9 is fixedly connected to the inner wall of the mounting tube 8, and the upper end 51 of the linkage assembly 5 extends from the opening 80 of the mounting tube 8. The push-pull assembly 9 is extended and retracted when the mounting tube 8 and the linkage assembly 5 rotates, and the upper end 51 extends or retracts from the opening 80.

In a new embodiment, the mounting tube 8 is cylindrical, and the cross section of the mounting tube 8 is circular. In this embodiment, the cross section of the mounting tube 8 is square. The mounting tube 8 includes an upper end face 81, a lower end face 82 and two side faces 83. The mounting tube 8 includes a first section and a second section, the upper end face 81 of the first section is parallel to the lower end face 82, and the upper end face 81 of the second section is inclined upward along the extension direction of the linkage component 5. The two side faces 83 extend upward accordingly, and the side faces 83 of the second section and the upper end face 81 and the lower end face 82 enclose and surround the pressure expansion tube 5. Both ends of the mounting tube 8 are closed ends, and an opening 80 is provided on the upper end face 81 of the second section of the mounting tube 8. When the table top 1 is tilted upward, the upper end 51 of the linkage component 5 extends out from the opening 80 of the upper end face 81; when the table top is laid flat, the upper end 51 of the linkage component 5 shrinks from the opening 80 of the upper end face 81 into the mounting tube 8. The lower end surface 82 is connected to the base 3 by bolts, which can provide convenience for installation and maintenance while fixing the mounting tube 8. The mounting tube 8 surrounds the support mechanism 2, and leaves space for the right fingers to grasp between the mounting tube 8 and the table top 1, which can not only prevent the user's fingers from being pinched when the table top is fully lowered, but also prevent foreign objects from entering the support mechanism 2 and causing damage to it.

Two limit members 12 are provided on the inner wall of the mounting tube 8 at positions corresponding to the second end 93 of the push-pull assembly 9, and a strip channel 13 is formed between the two limit members 12. The pulley connector 14 is clamped in the strip channel 13, and the pulley 11 rolls between the strip channel 13 and the lower end surface 82. When the push-pull assembly 9 pushes the linkage assembly 5 to roll, the pulley connector 14 moves in the strip channel 13 to prevent the second end 93 of the push-pull assembly 9 from swinging left and right. The pulley 13 moves between the lower end surface 82 and the strip channel 13 to prevent the linkage assembly 5 from moving up and down, and to limit its vertical movement. The provision of the channel 13 ensures that the movement range and movement direction of the push-pull assembly 9 and the linkage assembly 5 are limited within the range corresponding to the strip channel 13, thereby maintaining the stability of the movement and the safety of the structure.

A support column 7 is also provided between the table top 1 and the base 3. The support column 7 is a vertically arranged rigid cylindrical member, and the bottom end of the support column 7 is fixedly connected to the base 3. The support column 7 is provided at one end of the base 3 away from the rotating mechanism 15. When the table top 1 is pressed down to the lowest point by hand, the upper end surface of the support column 7 abuts against the table top 1, and the table top 1 is in a horizontal state at this time. At this time, there is space for fingers to grip between the table top 1 and the mounting tube 8. When the table top 1 is fully pressed down, the gap between the table top 1 and the mounting tube 8 ensures that the fingers will not be crushed by the table top 1. At the same time, the table top is horizontal when it is fully pressed down, which can facilitate the user to quickly and accurately adjust the table top to a horizontal state.

The operation steps for a user to use the desk with adjustable table top inclination of the present invention are as follows:

1. First, the table top and the support column are in a horizontal state, the gas pressure rod extends to the minimum distance, the upward support force is the minimum after the force is converted by the linkage assembly, the damping rod remains stationary, and the left and right damping shafts remain stationary.

2. When the table top needs to be flipped upward, an upward force is applied to the table top. When the upward force is greater than the resistance of the damping rod and the starting pressure of the gas rod, the table top begins to tilt upward, and the gas rod provides a certain supporting force. At this time, the resistance of the damping rod is smaller, and the damping shaft generates resistance to the upward flipping force. The cooperation of the gas rod and the damping rod makes the table top flip and tilt upward at a uniform speed.

3. When the tilt angle of the table top reaches the maximum or reaches the tilt angle required by the user, stop applying the upward force, the extension distance of the gas rod reaches the maximum or reaches a certain value, and the supporting force of the gas rod is converted into supporting force for the table top through the linkage assembly. The supporting force and the resistance of the damping shaft act at the same time, and the upward cooperative force exceeds the downward gravity of the table top. The table top is suspended and can remain in a suspended state when a certain force is applied to the table top, such as touching or lightly pressing.

4. When the table top needs to be adjusted downward to a horizontal direction, a downward force is applied to the table top. When the downward force exceeds the supporting force of the damping shaft and the pneumatic rod, the table top flips and tilts downward. During the flipping process, the damping rod generates resistance, that is, an upward supporting force. This resistance acts together with the resistance of the damping shaft to prevent the table top from moving downward quickly, thereby reducing the speed at which the table top descends, preventing the table top from descending too quickly and crushing the user's fingers.

Embodiment 2

In this embodiment, the desk with a table top that can be suspended at any angle comprises: a table top mounting plate, a lower connecting member linkage assembly and a push-pull assembly. Among them, the structures of the table top mounting plate, the lower connecting member and the linkage assembly are the same as those in the first embodiment.

The present embodiment further improves the structure of the push-pull assembly, which includes a drive motor, a screw rod and a nut. The drive motor is disposed at the end of the screw rod and is fixedly connected to the base. The drive motor is disposed at one end of the screw rod, and the nut is sleeved on the screw rod. The drive motor is used to drive the screw rod to move. The nut is rotatably connected to the bottom end of the linkage assembly, and the linkage assembly can rotate relative to the nut. By changing the rotation direction of the drive motor, the movement direction of the nut on the screw rod can be adjusted, thereby driving the movement of the linkage assembly. The control panel is disposed on the table top, and the control panel is electrically connected to the drive motor. The control panel can control the opening, closing and rotation direction of the drive motor. By using the drive motor and the screw rod assembly, the electric adjustment of the inclination of the desk is realized, the degree of automation is improved, and it is more suitable for children or students. The other components in this embodiment are the same as those in the first embodiment, and are not described here.

Embodiment 3

In this embodiment, the desk with a table top that can be suspended at any angle comprises: a table top mounting plate, a lower connecting member linkage assembly and a push-pull assembly. Among them, the structures of the table top mounting plate, the lower connecting member and the linkage assembly are the same as those in the first embodiment.

This embodiment further improves the structure of the push-pull assembly, wherein the push-pull assembly includes a hydraulic cylinder, the lower end of the linkage assembly is rotatably connected to the piston rod of the hydraulic cylinder, and the lower end of the linkage assembly moves forward and backward under the drive of the hydraulic cylinder, thereby driving the upper end of the linkage assembly to move up and down and push the table top to tilt, and finally changing the tilt angle of the table top relative to the base. The hydraulic cylinder transmits force to the table top through the linkage assembly and adjusts the tilt angle of the table top relative to the base, which is suitable for use by various people and expands the scope of application of the desk. The other components in this embodiment are the same as those in the first embodiment and are not described here.

Embodiment 4

In a new embodiment, a desk with a table top that can be suspended at any angle comprises: a table top mounting plate, a lower connecting member linkage assembly, and a push-pull assembly. The structures of the table top mounting plate, the lower connecting member, and the linkage assembly are the same as those in the first embodiment, and the structure of the push-pull assembly can adopt any one of the first to third embodiments. However, in this embodiment, no mounting pipe is provided, that is, no pipe fittings are provided outside the push-pull assembly and the linkage assembly.

Specifically, the left and right sides of the base in this embodiment are respectively concave to form two strip grooves, and the table board support mechanism is arranged in the strip groove. A strip cover plate is provided on the strip groove, and a notch is provided at one end of the cover plate close to the front end of the base. The table board support mechanism also includes a linkage component and a push-pull component. The upper end of the linkage component extends out from the notch of the strip groove, and the lower end of the linkage component is rotatably connected to the second end of the push-pull component. The first end of the push-pull component is fixedly connected to the inner wall of the strip groove. This embodiment does not have a mounting tube, and the table board support mechanism is directly arranged in the strip groove of the base 3, which increases the space between the table board 1 and the base 3 and makes the desk more beautiful as a whole. The other components and structures in this embodiment are the same as those in the first embodiment, and are not described here.

The above-described embodiments are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications, replacements and improvements within the technical scope disclosed by the present invention, and these modifications, replacements and improvements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims (5)

1. A desk with a table top that can be suspended at any angle, characterized in that it includes a table top, a base, a rotating mechanism and a supporting mechanism, wherein the table top and the base are hingedly connected through the rotating mechanism, and the rotating mechanism provides resistance when the table top rotates relative to the base, and the supporting mechanism includes a push-pull component and a linkage component, a first end of the push-pull component is fixedly connected to the base, a second end of the push-pull component is rotatably connected to the lower end of the linkage component, an upper end of the linkage component is hinged to the table top, and the bottom of the second end of the push-pull component is rollably connected to the base, the second end of the push-pull component can extend in the direction of the linkage component to drive the linkage component to rotate and push the table top to flip, the linkage component can be tilted to cooperate with the flipping of the table top after being subjected to a driving force of lifting or pressing down, the push-pull component cooperates with the linkage component to drive the table top to flip and provide supporting force under the action of the driving force, and the rotating mechanism cooperates with the supporting mechanism to provide supporting force to make the table top hover within any preset angle range; The support mechanism includes a first support mechanism and a second support mechanism which are relatively arranged on both sides of the bottom wall of the table board, and the push-pull components in the first support mechanism and the second support mechanism are both gas pressure rods; the gas pressure rods are used to push the table board to flip upward under the action of an external force and cooperate with the rotating mechanism to provide a supporting force to support the table board to hover, so that the table board can hover at any angle, or, in the first support mechanism or the second support mechanism, the push-pull component of one is the gas pressure rod, and the push-pull component of the other is a damping rod; the gas pressure rod is used to push the table board to flip upward under the action of an external force and cooperate with the rotating mechanism to provide a supporting force to support the table board to hover, so that the table board can hover at any angle; the damping rod is used to cooperate with the rotating mechanism to increase the resistance of the table board to flip downward when the table board is pressed down with a large force, so as to prevent the table board from being quickly pressed to a horizontal plane; The rotating mechanism comprises a table top mounting plate, a lower connecting member, and a damping shaft disposed between the table top mounting plate and the lower connecting member, wherein the table top mounting plate is connected to the bottom wall of the table top, the lower connecting member is fixedly connected to the base, and the damping shaft is used to increase the resistance of the table top mounting plate to rotation relative to the lower connecting member; The damping shaft comprises a shaft, a sleeve and an elastic sleeve, one end of the shaft is inserted into the sleeve and can rotate relative to the sleeve, the middle part of the shaft protrudes upward to form a separator, and the separator divides the shaft into a connecting part and a shaft head; The shaft head is semi-cylindrical, inserted into the shaft sleeve, and forms a cavity for accommodating the elastic sleeve, and the elastic sleeve is sleeved in the cavity between the shaft sleeve and the shaft head; The outer diameter of the elastic sleeve is slightly larger than the inner diameter of the sleeve, so the elastic sleeve and the sleeve form an interference fit. There are two rotating shafts, and the shaft heads of the two rotating shafts are respectively inserted into the two ends of the sleeve; The end of the connecting portion is fixedly connected to the table top mounting plate, the outer wall of the sleeve is fixedly connected to the lower connecting member, and the table top mounting plate rotates relative to the lower connecting member and drives the rotating shaft to rotate relative to the sleeve. 2. A desk with a table top that can hover at any angle as described in claim 1, characterized in that the push-pull assembly includes a screw rod, a nut threadedly connected to the screw rod, and a drive motor connected to one end of the screw rod, one end of the linkage assembly is hinged to the nut, and the other end of the linkage assembly is hinged to the bottom wall of the table top; the drive motor drives the screw rod to rotate so that the nut moves back and forth along the screw rod to drive the linkage assembly to rotate and drive the table top to flip. 3. A desk with a table top that can hover at any angle as described in any one of claims 1-2, characterized in that a cylindrical support column is provided on the end of the base away from the rotating mechanism, and the table top is in a horizontal state when the support column abuts against the table top. 4. A desk with a table top that can hover at any angle as described in claim 3, characterized in that a mounting tube is also provided outside the supporting mechanism, two ends of the supporting mechanism extend from two ends of the mounting tube respectively, the mounting tube is arranged between the table top and the base, the lower side of the mounting tube is connected to the base, and a gap is left between the upper side of the mounting tube and the table top. 5. A desk with a table top that can hover at any angle as described in claim 3, characterized in that a side of the base facing the table top is concave to form a strip groove, the supporting mechanism is arranged in the strip groove, the first end of the push-pull assembly is fixedly connected to the inner wall of the strip groove, and the upper end of the linkage assembly extends out from the notch of the strip groove.