Overturning structure of lifting table top

Abstract

The utility model relates to the technical field of office furniture, in particular to a lifting table top overturning structure which comprises a bottom frame. The top frame is parallel to the bottom frame; the supporting arm group comprises a first supporting rod and a second supporting rod which are rotationally connected in the center; one end of the first supporting rod is provided with a first sliding structure in sliding connection with the bottom frame, and the other end is rotationally connected with the top frame; one end of the second supporting rod is rotatably connected with the bottom frame, and the other end is provided with a second sliding structure slidably connected with the top frame; one end of the lifting air spring is rotationally connected with the short shaft, and the other end is rotationally connected with the second supporting rod; the table top is rotationally connected with the top frame; one end of the turnover air spring is rotationally connected with the desktop, and the other end is rotationally connected with the top frame. According to the utility model, the space utilization rate is effectively improved, and flexible use of lifting and overturning is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to office furniture technical field especially, relate to a lifting desktop turnover structure. BACKGROUND

[0002] With the continuous development of office environment and work mode, as a kind of equipment that can improve work efficiency, improve work comfort, desktop lifting system has been widely used in office, education and other various work places;In order to meet different use requirements, many lifting table designs introduce a variety of structures, so that users can adjust the desktop angle according to needs.

[0003] Now the rise of multifunctional office space and flexible work mode, "table on table" concept is gradually proposed, in "table on table" application scene, the efficient use of space requires that desktop not only can be lifted, but also has flexible turnover or angle adjustment function;And in the prior art, many existing designs can realize lifting function, but fail to consider the needs of desktop turnover and multi-angle adjustment, unable to fully meet the needs of flexible adjustment and multifunctionality of desktop in modern office scene. INVENTION CONTENTS

[0004] The utility model provides a kind of lifting desktop turnover structure, can effectively improve space utilization, realize the flexible adjustment of lifting and turnover.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is a kind of lifting desktop turnover structure, comprising:

[0006] Bottom frame;

[0007] Top frame, it is parallelly arranged with bottom frame;

[0008] Support arm group, including the first support rod and the second support rod of center rotation connection;First support rod one end has with bottom frame sliding connection first sliding structure, the other end is rotationally connected with top frame;Second support rod one end is rotationally connected with bottom frame, the other end has with top frame sliding connection second sliding structure;

[0009] Lifting gas spring, one end rotationally connects first sliding structure, the other end rotationally connects second support rod;

[0010] Desktop, rotationally connected with top frame;

[0011] Turnover gas spring, one end rotationally connects desktop, the other end rotationally connects top frame.

[0012] In the embodiment of the utility model, first sliding structure includes from the first guide rail group that has from one end to the other end extension from bottom frame, and with the first guide rail group sliding connection's first short axle, second sliding structure includes from the second guide rail group that has from one end to the other end extension from top frame, and with the second guide rail group sliding connection's second short axle.

[0013] In the embodiment of the utility model, first support rod is divided into parallelly arranged first long rod and second long rod, and is connected through first short axle, second support rod is all central rotation connection with first long rod, second long rod,

[0014] In the embodiment of the utility model, the both ends of first short axle are provided with one square roller that can be embedded in first guide rail group, and first short axle rotates around first short axle axis, the both ends of second short axle are provided with one square roller that can be embedded in second guide rail group, and second short axle rotates around second short axle axis.

[0015] In the embodiment of the utility model, still include multiple turnover hinges, interval setting in the same side of top frame, rotation connection desktop and top frame.

[0016] In the embodiment of the utility model, the side of desktop close to turnover hinge is provided with a stop, and the stop is higher than the plane where the desktop is located.

[0017] In the embodiment of the utility model, the side of bottom frame close to turnover hinge extends a distance away from the direction of desktop.

[0018] In the embodiment of the utility model, still include steel axle through the center of first support rod and the center of second support rod, and first support rod and second support rod rotate around steel axle.

[0019] In the embodiment of the utility model, transition plate is arranged on the side of the length center of second support rod, and the side is close to second guide rail group, and the region protruding of transition plate is rotationally connected with lifting gas spring.

[0020] In the embodiment of the utility model, lifting handle is arranged on the lower end surface of desktop and connected with lifting gas spring, and turnover handle is arranged on the side of the lower end surface of desktop away from turnover hinge and connected with turnover gas spring.

[0021] The utility model discloses the beneficial effects are: adopt lifting gas spring and support arm structure, can be suspended at any height within effective stroke, through the middle segment connection of lifting gas spring and support arm, help to share a part in the process of lifting, reduce the pressure of support point, save the space occupied by gas spring, the structure that turnover gas spring is combined with turnover hinge can satisfy the angle turnover of 0~60 degrees of desktop, help user to adjust the desktop to an ergonomic angle according to own sitting posture or standing posture, protect the cervical vertebra and spine of user, reduce the fatigue of neck and eye. ACCURACY

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0023] Figure 1 It is a whole structure schematic diagram of a lifting table top turnover structure in the present application;

[0024] Figure 2 It is a front view schematic diagram of a lifting structure in the lifting table top turnover structure in the present application;

[0025] Figure 3 It is a partial enlarged schematic diagram of A in the present application Figure 1

[0026] Figure 4 It is a side view schematic diagram of a lifting table top turnover structure in the present application;

[0027] Figure 5 It is a partial enlarged schematic diagram of B in the present application Figure 4

[0028] Reference signs: 1, bottom frame; 2, top frame; 21, turnover hinge; 3, support arm group; 31, first support rod; 31a, first long rod; 31b, second long rod; 32, second support rod; 32a, transition plate; 33, first sliding structure; 33a, first guide rail group; 33b, first short shaft; 34, second sliding structure; 34a, second guide rail group; 34b, second short shaft; 35, steel shaft; 36, square roller; 4, lifting gas spring; 5, table top; 51, baffle; 52, lifting handle; 53, turnover handle; 6, turnover gas spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments.

[0030] ​​In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] A type of height-adjustable and flip-top desktop structure, such as Figures 1-5 As shown, it includes:

[0033] The base frame 1 is used to support the lifting and flipping structure of the desktop; preferably, support feet can be provided on the lower end of the base frame 1 to enhance the stability of the overall structure.

[0034] Top frame 2 is set parallel to bottom frame 1;

[0035] The support arm assembly 3 includes a first support rod 31 and a second support rod 32 that are centrally rotatably connected. One end of the first support rod 31 has a first sliding structure 33 that is slidably connected to the bottom frame 1, and the other end is rotatably connected to the top frame 2. One end of the second support rod 32 is rotatably connected to the bottom frame 1, and the other end has a second sliding structure 34 that is slidably connected to the top frame 2. This design allows the second support rod 32 to be raised when the first support rod 31 is raised along with the first sliding structure 33, thus synchronously adjusting the height of the tabletop 5 and ensuring that the tabletop 5 is level.

[0036] The lifting gas spring 4 is rotatably connected at one end to the first sliding structure 33 and at the other end to the second support rod 32.

[0037] Desktop 5 is rotatably connected to top frame 2;

[0038] The turnover air spring 6 is rotatably connected to the tabletop 5 at one end and rotatably connected to the top frame 2 at the other end; in some embodiments of the utility model, the space of the turnover structure is not sufficient, and when the rotatably connected tabletop 5 is used, the space is relatively narrow, and the effect of pushing the tabletop 5 to turn over by the turnover air spring 6 cannot be achieved; at this time, the effect of pushing the tabletop 5 to turn over by the turnover air spring 6 can be achieved by using the mode that the turnover air spring 6 is slidably connected to the tabletop 5.

[0039] As shown in Figure 1 and Figure 2 The working principle of the utility model is as follows:

[0040] The bottom frame 1 is placed on a plane, the first supporting rod 31 and the second supporting rod 32 are connected by using a steel shaft 35 at the center rotation points, the first supporting rod 31 and the second supporting rod 32 form a shearing motion, and after being expanded, the whole is X-shaped; similarly, the second supporting rod 32 repeats the above-mentioned action, so that the first supporting rod 31 and the second supporting rod 32 can slide in the same direction, and the first sliding structure 33 and the second sliding structure 34 are arranged on the same side of the tabletop 5; then the lifting air spring 4 is fixed on the short shaft in the first sliding structure 33 and connected with the second supporting rod 32; finally, the tabletop 5 is rotatably connected to the side edge of the top frame 2 through the turnover hinge 21, and the turnover air spring 6 is connected to the top frame 2 and the tabletop 5.

[0041] When the utility model is not expanded, it is in a folded state: the first supporting rod 31 slides to the farthest end from the center of the tabletop 5 along the sliding structure, and the second supporting rod 32 also slides to one side; at this time, the bottom frame 1 and the top frame 2 are in contact, and the top frame 2 abuts against the tabletop 5;

[0042] When the user uses the utility model, holds and moves the lifting handle 52 located below the tabletop 5 to control the first sliding structure 33 to slide towards the center of the tabletop 5, at this time, the first supporting rod 31 is lifted, the piston rod in the lifting air spring 4 starts to extend, drives the second supporting rod 32 to lift, and the top frame 2 is lifted upwards, so that when the tabletop 5 reaches the expected height of the user, the lifting handle 52 is stopped to move; if it is necessary to adjust the angle of the tabletop 5 to reach the same level as the visual angle, to protect the cervical vertebrae and improve the experience, the turnover handle 53 on one side of the tabletop 5 is slid, the extension length of the piston rod of the turnover air spring 6 is controlled, and the turning angle of the tabletop 5 is continuously adjusted to a suitable angle; and because the stopper 51 is arranged on the side of the turning shaft of the tabletop 5, the objects on the tabletop 5 can be blocked, and falling is not worried;

[0043] After using the utility model, the original state can be restored only by using the turnover handle 53 and the lifting handle 52 again.

[0044] In some embodiments of the utility model, first sliding structure 33 includes from bottom frame 1 has from one end to the other end extends first guide rail group 33a, and with first guide rail group 33a sliding connection first short shaft 33b;Second sliding structure 34 includes from top frame 2 has from one end to the other end extends second guide rail group 34a, and with second guide rail group 34a sliding connection second short shaft 34b;

[0045] On the basis of the above embodiment, first guide rail group 33a and second guide rail group 34a are designed to be on the same side of the tabletop 5, so that when the tabletop 5 is raised and lowered, the first short shaft 33b and the second short shaft 34b slide synchronously, making the tabletop 5 move vertically upward and downward without horizontal displacement.

[0046] First guide rail group 33a and second guide rail group 34a can each be composed of two C-shaped metal sheets arranged inside the frame;This makes the manufacturing process simple and cost-effective, and also saves space on the table, while providing good rigidity and strength to ensure the stability and load-bearing capacity of the lifting table.

[0047] Please refer to Figure 1 and Figure 4 , the first support rod 31 is divided into a first long rod 31a and a second long rod 31b arranged in parallel, and connected by a short shaft;The second support rod 32 is centrally rotatably connected to the first long rod 31a and the second long rod 31b;Compared with the traditional support arm, this design can use one less rod, reducing construction costs and space, while also ensuring symmetry, effectively and evenly transferring the load on the tabletop 5 to the bottom frame 1, ensuring stability during the lifting of the tabletop 5.

[0048] Preferably, as shown in Figure 3 , each end of the first short shaft 33b is provided with a square roller 36 that can be embedded in the first guide rail group 33a, and the first short shaft 33b rotates around the first short shaft 33b axis;Each end of the second short shaft 34b is provided with a square roller 36 that can be embedded in the second guide rail group 34a, and the second short shaft 34b rotates around the second short shaft 34b axis;When installing, the square rollers 36 are fitted on both ends of the two short shafts before being installed in the guide rail;The square rollers 36 can effectively guide the movement of the short shaft along the guide rail, evenly distribute the force transmitted by the load on the tabletop 5, reduce the pressure at the contact point of the short shaft and the guide rail, and reduce direct friction;And the square rollers 36 do not spin like circular rollers, causing positional deviation;The square rollers 36 have a larger contact area, which has significant advantages in terms of guiding accuracy, load-bearing capacity, friction distribution, stability, etc.

[0049] As shown in Figure 4As shown in some embodiments of the utility model, a plurality of turnover hinges 21 are arranged at one side of the top frame 2 at intervals, and the tabletop 5 is rotatably connected to the top frame 2; the plurality of turnover hinges 21 are evenly distributed to ensure that the tabletop 5 is more evenly stressed when it is turned over, and to assist the angle turning of the tabletop 5 by the turnover gas spring 6; after the tabletop 5 stops turning over, the pressure brought by the tabletop 5 and the objects is dispersed to each hinge, thereby improving the compression resistance and stability of the entire turnover structure and prolonging the service life.

[0050] Preferably, a side of the tabletop 5 close to the turnover hinge 21 is provided with a stop strip 51, and the stop strip 51 is higher than the plane on which the tabletop 5 is located; when the tabletop 5 is turned over to a certain angle, the objects (such as files, electronic devices, stationery, etc.) on the tabletop 5 slide down due to gravity, and the stop strip 51 can block the objects as a physical barrier to prevent them from falling off the tabletop 5, thereby enhancing the safety, stability and user experience of the tabletop 5 turnover system.

[0051] Please refer to Figure 1 , a side of the bottom frame 1 close to the turnover hinge 21 extends a distance away from the tabletop 5, which can serve as an additional support to stabilize the entire lifting tabletop turnover structure; moreover, the extended part can form a containing area in which office supplies such as a keyboard, a pencil, etc. can be placed, and the other working objects on the tabletop 5 such as a computer, a display, etc. can be cooperated with, thereby improving the convenience of object storage and work efficiency.

[0052] As Figure 4 shown, in some embodiments of the utility model, a steel shaft 35 passes through the centers of the first support rod 31 and the second support rod 32, and the first support rod 31 and the second support rod 32 rotate around the steel shaft 35; the steel shaft 35 has high strength and rigidity, and can effectively withstand the impact force and load in the lifting and turning process; in this way, the steel shaft 35 can withstand and share the pressure generated by the two support rods in the lifting process, thereby reducing the risk of system loosening, deformation or damage that may occur during use, and enhancing the stability and safety of the equipment.

[0053] In some embodiments of the utility model, as Figure 5As shown, the transition plate 32a is arranged on one side of the second support rod 32 at the length center, which is close to the second guide rail group 34a; the transition plate 32a protrudes a region and is rotationally connected with the lifting gas spring 4; the transition plate 32a achieves the effect that the lifting gas spring 4 is rotationally connected with the second support rod 32, when the utility model is in the folding state, the length of the transition plate 32a makes the lifting gas spring 4 not directly impact the plane where the bottom frame 1 is located, thereby maintaining the stability of the whole lifting structure; moreover, the lifting gas spring 4 is not directly connected with the second support rod 32, thereby avoiding the damage to the supporting capacity of the second support rod 32 and the stability caused by the internal force balance, and reducing the stroke required for the lifting gas spring 4 to stretch and retract, so that the whole structure occupies a smaller space and requires a smaller lifting power.

[0054] Preferably, the lifting handle 52 is arranged on the lower end surface of the desktop 5 and is connected with the lifting gas spring 4; the lifting handle 52 and the lifting gas spring 4 can be connected by a steel wire rope, so as to achieve the effect that the lifting handle 52 is rotated, the steel wire rope drives the lifting gas spring 4 to move, and the lifting gas spring 4 is controlled to stretch and retract at a distance; the user does not need to rely on a complex electric system or external tools, and can quickly adjust the height of the desktop 5 whether sitting or standing, thereby enhancing the convenience and practicality of operation.

[0055] In some embodiments of the utility model, the turnover handle 53 is arranged on the side of the lower end surface of the desktop 5 away from the turnover hinge 21 and is connected with the turnover gas spring 6; because the whole lifting desktop turnover structure is a design concept of "a table on a table", the overall size is not very large, so the turnover handle 53 is designed on the side away from the user, and the user only needs to stretch out the hand to pass through the whole desktop 5 and easily contact the turnover handle 53; when the turnover angle is required, the turnover handle 53 is moved towards the user to be adjusted, and the user can also intuitively see whether the angle meets the requirements without additional actions; the turnover handle 53 and the turnover gas spring 6 can also be connected by a steel wire rope to control the stretching and retraction of the turnover gas spring 6; on the basis of the above, a buckle can be arranged on the turnover handle 53, and a clamping groove is arranged on one side of the top frame, so that when the desktop 5 is not turned over, the buckle is clamped in the clamping groove, and the desktop 5 will not automatically turn over due to accidental touch.

[0056] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lift table top inversion structure, characterized by, It comprises: a bottom frame (1); a top frame (2) arranged in parallel with the bottom frame (1); a support arm group (3) comprising a first support rod (31) and a second support rod (32) connected at the center; the first support rod (31) has a first sliding structure (33) slidingly connected to the bottom frame (1) at one end and rotatably connected to the top frame (2) at the other end; the second support rod (32) is rotatably connected to the bottom frame (1) at one end and has a second sliding structure (34) slidingly connected to the top frame (2) at the other end; a lifting gas spring (4) rotatably connected to the first sliding structure (33) at one end and to the second support rod (32) at the other end; a tabletop (5) rotatably connected to the top frame (2); a turnover gas spring (6) rotatably connected to the tabletop (5) at one end and to the top frame (2) at the other end.

2. The lift-desk flip structure of claim 1, wherein, The first sliding structure (33) comprises a first guide rail group (33a) extending from one end to the other end of the bottom frame (1), and a first short shaft (33b) slidingly connected to the first guide rail group (33a); the second sliding structure (34) comprises a second guide rail group (34a) extending from one end to the other end of the top frame (2), and a second short shaft (34b) slidingly connected to the second guide rail group (34a).

3. The lift-desk flip structure of claim 2, wherein, The first support rod (31) is divided into a first long rod (31a) and a second long rod (31b) arranged in parallel and connected by a first short shaft (33b); the second support rod (32) is rotatably connected to the first long rod (31a) and the second long rod (31b) at the center.

4. The lift-desk flip structure of claim 3, wherein, The first short shaft (33b) has a square roller (36) embedded in the first guide rail group (33a) at each end, and the first short shaft (33b) rotates around the first short shaft (33b) axis; the second short shaft (34b) has a square roller (36) embedded in the second guide rail group (34a) at each end, and the second short shaft (34b) rotates around the second short shaft (34b) axis.

5. The lift-desk flip structure of claim 1, wherein, It also comprises a plurality of turnover hinges (21) arranged at intervals on the same side of the top frame (2) and rotatably connecting the tabletop (5) and the top frame (2).

6. The lift-desk flip structure of claim 5, wherein, The tabletop (5) is provided with a stop strip (51) on the side close to the turnover hinge (21), and the stop strip (51) is higher than the support plane of the tabletop (5).

7. The lift-desk flip structure of claim 5, wherein, The bottom frame (1) extends a distance away from the tabletop (5) on the side close to the turnover hinge (21).

8. The lift-desk flip structure of claim 1, wherein, It also comprises a steel shaft (35) passing through the center of the first support rod (31) and the center of the second support rod (32), and the first support rod (31) and the second support rod (32) rotate around the steel shaft (35).

9. The lift-desk flip structure of claim 2, wherein, A transition plate (32a) is arranged on one side of the length center of the second support rod (32), and this side is close to the second guide rail group (34a); the transition plate (32a) protrudes an area rotatably connected to the lifting gas spring (4).

10. The lift-desk flip structure of claim 5, wherein, The lower end surface of the table top (5) is provided with a lifting handle (52) connected with the lifting gas spring (4); the side of the lower end surface of the table top (5) away from the turnover hinge (21) is provided with a turnover handle (53) connected with the turnover gas spring (6).

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