WO2023160024A1

WO2023160024A1 - Support frame, display device and lift table

Info

Publication number: WO2023160024A1
Application number: PCT/CN2022/131757
Authority: WO
Inventors: 尤小东; 王宏军
Original assignee: 尤小东
Priority date: 2022-02-25
Filing date: 2022-11-14
Publication date: 2023-08-31
Also published as: CN117859027A; WO2023159493A1

Abstract

A support frame, comprising: a first mounting member (10); an elastic member (20) provided on the first mounting member (10); a first connecting member (30) and a second connecting member (50); a first linkage member A; a second linkage member C, wherein a first end of the first connecting member (30) is connected to the elastic member (20), and a second end of the first connecting member (30) is in linkage connection with the second linkage member C; and a second mounting member (60), wherein the second mounting member (60) and the first mounting member (30) move relative to each other in a preset direction; the second mounting member (60) is connected to the second connecting member (50); and when the second mounting member (60) and the first mounting member (10) move relative to each other, the first linkage member A moves along a first preset arc-shaped trajectory, the second linkage member C moves along a second preset arc-shaped trajectory, the first connecting member (30) moves to drive the elastic member (20) to deform, and the second mounting member (60) or the first mounting member (10) has a hovering support position. The support frame can maintain a hovering state at any position in height. The present invention further relates to a display device and a lift table.

Description

Stands, monitor units and height adjustable tables

This application claims the priority of the patent application with the application number PCT/CN2022/078025, the application date is February 25, 2022, and the invention name is "support frame, display device and lifting table".

technical field

The invention relates to the technical field of mounting brackets, in particular, to a supporting frame, a display device and a lifting table.

Background technique

In the existing technology, in order to adapt to more application scenarios, height adjustment is required. At present, the height adjustment method generally adopts screw locking, and the friction force is provided by the clamping force between the gaskets, thereby realizing the adjustment of different height positions And positioning, this method needs to adjust multiple screws during adjustment, and someone needs to hold the parts to be adjusted all the time to avoid falling, so this method has the disadvantage of inconvenient adjustment, and the experience in realizing height adjustment is poor.

Contents of the invention

The main purpose of the present invention is to provide a support frame, a display device and a lifting table, which can keep the display waiting adjustment parts in a hovering state at any position, and the adjustment is convenient.

In order to achieve the above object, according to one aspect of the present invention, a support frame is provided, including: a first mounting part; an elastic part arranged on the first mounting part; a first connecting part and a second connecting part; a first linkage Part A is movably arranged along the first preset arc track; the second link C is linked with the first link A, and the second link C is movably set along the second preset arc track. The radius of the two preset arc tracks is less than or equal to the radius of the first preset arc track; the first end of the first connector is connected to the elastic member, and the second end of the first connector is linked to the second linkage C , the second connecting piece is connected in linkage with the first linkage piece A; the second mounting piece, along the preset direction, has relative movement between the second mounting piece and the first mounting piece, and the second mounting piece is connected to the second connecting piece, Wherein, when there is relative movement between the second mounting part and the first mounting part, the first link A moves along the first preset arc track, the second link C moves along the second preset arc track, and the first link A moves along the second preset arc track. The connecting part moves to drive the elastic part to deform, and the second mounting part or the first mounting part has a hovering support position.

Further, the support frame further includes: a rotating part pivotally connected with the first mounting part, the first linkage A and the second linkage C are arranged on the rotating part, and the second linkage C is located between the rotating part and the first mounting part Between the pivot point between and the first link A, the first end of the first link is connected with the elastic member, the second end of the first link is linked with the second link C, and the second link is connected with The first linkage part A is connected in linkage, and the rotating part can swing around a pivot point between the rotating part and the first mounting part.

Further, the support frame also includes: a first track, which is arranged on the first mounting part, and both the first linkage part A and the second linkage part C cooperate with the slideway of the first track, and the first linkage part A and the second linkage part The preset track of C coincides; or, the support frame also includes a first track and a second track that are both arranged on the first mounting part, the radius of the second track is smaller than the radius of the first track, and the first linkage A and the first The track is slidably matched, and the second linkage C is slidably matched with the second track.

Further, the second end of the first link is fixedly connected to the second link C or bypasses the second link C and then fixedly connected to the first installation part, and the second link is fixedly connected to the first link A or bypasses the second link C. After passing through the first link A, it is fixedly connected with the first installation part.

Further, the first connecting part is a rope, and the support frame also includes a first guide part connected to the first mounting part, one end of the rope is connected to the elastic part, and the other end of the rope is connected to the second linkage part after bypassing the first guide part. C linkage connection.

Further, when the radius of the first preset arc track is greater than the radius of the second preset arc track, the first guide is a guide wheel; or, the radius of the second preset arc track is equal to the first preset arc When the radius of the trajectory is lower, the first guide includes a first guide wheel and a second guide wheel coaxially arranged, the radius of the first guide wheel is less than the radius of the second guide wheel, there are two ropes, and the elastic member and the first guide wheel Connected by a rope, the second link C is connected with the second guide wheel by another rope.

Further, the support frame also includes a second guide connected to the first mounting part, and the other end of the rope is connected to the rotating part after passing around the second guide and the first guide in turn, wherein the rope is connected to the second guide. The point of tangency lies on the extension of the axis of the elastic element.

Further, the second connecting member is a connecting rod, one end of the connecting rod is hinged to the first link A, and the other end of the connecting rod is hinged to the second mounting member.

Further, the second connecting part is a connecting rope, and the support frame also includes a third guide connected to the first mounting part, one end of the connecting rope is linked with the first linkage A, and the other end of the connecting rope bypasses the third guide After the part is connected to the second mounting part, when relative movement occurs between the second mounting part and the first mounting part, the connecting rope moves to drive the elastic part to deform.

Further, one end of the connecting rope is fixedly connected to the first link A or bypasses the first link A and then fixedly connected to the first installation part.

Further, there are two third guides, and the two third guides are arranged at intervals along the first direction, and the third guides are used to provide guidance for the connecting rope, so as to move between the second mounting part or the first mounting part. During the process, the force is transmitted to the rotating part through the connecting rope.

Further, the third guide includes a coaxial first sub-pulley and a second sub-pulley, the diameter of the first sub-pulley is smaller than the diameter of the second sub-pulley, the connecting rope includes a first rope segment and a second rope segment, the first One end of the rope segment is linked with the first link A, the other end of the first rope segment is connected with the first sub-pulley, one end of the second rope segment is connected with the second sub-pulley, and the other end of the second rope segment is connected with the second pulley. Mounting connection.

Further, the support frame also includes a first fixed block, and the third guide includes a coaxial first sub-pulley and a second sub-pulley, the second sub-pulley has an accommodation cavity, and a card slot is arranged in the accommodation cavity, and the first fixed block Installed in the card slot to fix and limit part of the second connecting piece located in the accommodating cavity, at least one of the first sub-pulley and the second sub-pulley is provided with a helically wound rib structure, so as to be wound on the The second connecting members of adjacent turns on the first sub-pulley and/or the second sub-pulley are spaced apart.

Further, the support frame also includes an adjustment structure for adjusting the stretching amount of the elastic member. The adjustment structure includes a screw and an adjustment member screwed to the screw rod. The adjustment member is connected to the elastic member, and the screw rod is rotatably fixed on the first mounting member. , so that the adjusting part drives the elastic part to move linearly along the axis of the screw.

Further, the support frame further includes a limiting structure, which is arranged on the first mounting part, and under the limiting action of the limiting structure, the adjusting part can drive the elastic part to move a preset distance along the screw rod.

Further, the limiting structure includes a rotation-stop plate and a fixing plate connected to the first mounting part, the rotation-stop plate is installed on the adjusting part, a limiting groove is arranged on the fixing plate, and a first limiting part is arranged on the rotation-stopping plate, The end of the first limiting member away from the adjusting member is clamped in the limiting groove, and can slide along the extending direction of the limiting groove.

Further, the support frame also includes a connecting shaft, the number of elastic parts is two, one end of the two elastic parts is connected with the adjustment part, and the other end of the two elastic parts is connected with the connecting shaft, and the outer wall of the connecting shaft is provided with A groove, one end of the first connecting piece is sleeved on the groove, and the other end of the first connecting piece is linked with the rotating piece.

Further, the support frame also includes a second fixing block, the second mounting part includes a connecting plate and a clamping plate, the clamping plate is installed on the connecting plate, a clamping space is formed between the clamping plate and the connecting plate, and the second fixing block is installed on the second connecting part The first end of the second fixed block is located in the clamping space.

According to another aspect of the present invention, a display device using a support frame is provided. The display device includes a display and the above-mentioned support frame. The second mounting part is a slider connected to the display. Mobile settings.

According to another aspect of the present invention, there is provided a lifting table using a support frame, the lifting table includes a desktop and the above-mentioned support frame connected to the desktop, the first mounting part is the desktop, the second mounting part is connected to the legs of the lifting table The connecting or second mounting part constitutes a leg of the lift table, and the first mounting part is vertically movably arranged relative to the second mounting part.

Applying the technical solution of the present invention, by arranging the elastic member on the first mounting part, the first link A is movably arranged along the first preset arc track, and the second link C is arranged along the second preset arc track It is movably arranged, the first end of the first connecting part is connected with the elastic part, the second end of the first connecting part is linked with the second linkage C, and there is relative movement between the second mounting part and the first mounting part, In this way, when relative movement occurs between the second mounting part and the first mounting part, the first linkage A moves along the first preset track, the second linkage C moves along the second preset arc track, and the first link The parts move to drive the deformation of the elastic parts, so that the second mounting part or the first mounting part can hover at different heights to meet the needs of multi-scenario use; You need to pull up or press down on the desktop to the desired position to hover freely at any height, and the adjustment is convenient, which overcomes the problem of complicated adjustment steps in the height adjustment process.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 shows an exploded view of an embodiment of a support frame of the present invention;

Fig. 2 shows a schematic structural view of Embodiment 1 of the support frame of the present invention (wherein, the second connector is a connecting rope);

Fig. 3 shows the schematic diagram of the front structure of Embodiment 1 of the support frame of the present invention;

Fig. 4 shows the schematic diagram of the front view of the embodiment of the support frame of the present invention (wherein, the second guide wheel is a reducing wheel);

Fig. 5 shows a schematic diagram of the mechanical balance principle of the support frame of the present invention;

Fig. 6 shows the schematic diagram of the front structure of the embodiment of the lift table of the present invention;

FIG. 7 shows a schematic view of the overall structure of an embodiment of the lift table of the present invention;

Fig. 8 shows the schematic diagram of the front structure of Embodiment 2 of the support frame of the present invention (wherein, the support frame includes a first track and a second track);

Fig. 9 shows a front view structural schematic view of Embodiment 3 of the support frame of the present invention (wherein, only the first track is shown);

Fig. 10 shows a schematic front view of the connection between the rotating part and the connecting rod of the support frame of the present invention;

Fig. 11 shows a schematic diagram in which the slider of the support frame of Fig. 10 is at the highest position;

Fig. 12 shows a schematic diagram in which the slider of the support frame of Fig. 10 is located at the lowest position;

Fig. 13 shows a front view structural schematic view of Embodiment 5 of the support frame of the present invention (wherein there are two elastic members);

Fig. 14 shows a schematic diagram of the overall structure of Embodiment 5 of the support frame of the present invention;

Figure 15 shows an exploded view of Embodiment 5 of the support frame of the present invention;

Fig. 16 shows a partial structural schematic diagram of Embodiment 5 of the support frame of the present invention;

Fig. 17 shows a structural schematic diagram of the adjustment structure and the anti-rotation plate of Embodiment 5 of the support frame of the present invention;

Fig. 18 shows a schematic structural view of the second mounting part of Embodiment 5 of the support frame of the present invention;

Fig. 19 shows a schematic structural view of the third guide member of Embodiment 5 of the support frame of the present invention;

FIG. 20 shows a schematic diagram of the internal structure of the third guide member of Embodiment 5 of the support frame of the present invention;

Fig. 21 shows a partial structural schematic diagram of Embodiment 5 of the support frame of the present invention;

Fig. 22 shows the enlarged view at B place of Fig. 21;

Fig. 23 shows another perspective structure diagram of Embodiment 5 of the support frame of the present invention;

Figure 24 shows an enlarged view at D of Figure 23; and

Fig. 25 is a schematic structural diagram showing another angle of the second mounting part of the fifth embodiment of the support frame of the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. First mounting part; 11. Base; 12. Slide rail; 20. Elastic part; 30. First connecting part; 40. Rotating part; 41. First track; 42. Second track; 50. Second connection 51, the first rope section; 52, the second rope section; 60, the second mounting part; 61, the panel; 71, the first guide piece; 711, the first guide wheel; 712, the second guide wheel; 72, The third guide; 721, the first sub-pulley; 722, the second sub-pulley; 723, the slot; 724, the rib structure; 73, the second guide; 80, the adjustment structure; 81, the adjustment member; 82, the screw ; 90, rope; 100, desktop; 101, supporting leg; 102, the first fixed block; Fixed plate; 105, limit groove; 106, first limit piece; 107, anti-rotation groove; 108, connecting shaft; 109, second fixed block; 110, connecting plate; 111, splint; 112, mounting seat; 113 , the second limit piece; 114, the installation groove; 115, the first cover plate; 116, the second cover plate; 117, the rotating shaft.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

general overview

Referring to Fig. 1 to Fig. 12, the present invention provides a support frame. The support frame includes a first mounting part 10 , an elastic part 20 , a first connecting part 30 , a second connecting part 50 , a first linkage part A and a second linkage part C. The elastic part 20 is arranged on the first mounting part 10; the first linkage part A is movably arranged along the first preset arc track; the second linkage part C is linked with the first linkage part A, and the second linkage part C is along the The second preset arc track is movably set, and the radius of the second preset arc track is less than or equal to the radius of the first preset arc track; the first end of the first connecting member 30 is connected with the elastic member 20, and the second The second end of a connecting piece 30 is linked to the second linking piece C, and the second connecting piece 50 is linked to the first linking piece A; the second mounting piece 60 is connected to the first connecting piece 60 along the preset direction. There is relative movement between the mounting parts 10, and the second mounting part 60 is connected to the second connecting part 50, wherein, when the relative movement occurs between the second mounting part 60 and the first mounting part 10, the first linkage A moves along the first The preset arc track moves, the second link C moves along the second preset arc track, the first connecting part 30 moves to drive the elastic part 20 to deform, and the second mounting part 60 or the first mounting part 10 has Hover support position.

The first linkage A and/or the second linkage C are pin shafts. Of course, it can also be a scroll wheel or a rotating wheel.

The first connector 30 is a rope, and the support frame also includes a first guide 71 connected to the first mounting member 10. One end of the rope is connected to the elastic member 20, and the other end of the rope bypasses the first guide 71 in turn and connects with the first guide 71. The two linkages C are connected in linkage, and the first guide 71 is connected to the first mounting piece 10. Through the above arrangement, when the second linkage C moves along the preset arc track, the rope will pull the elastic member 20 to deform the elastic member. .

The second end of the first connecting piece 30 is fixedly connected to the second linkage piece C or bypasses the second linkage piece C and then fixedly connected to the first mounting piece 10, and the second connecting piece 50 is fixedly connected to the first linkage piece A or bypasses the second linkage piece C. After passing through the first link A, it is fixedly connected with the first installation part 10 .

It should be noted that the fact that the radius of the second preset arc track is equal to the radius of the first preset arc track means that the two tracks overlap into one track. The linkage connection refers to that the linkage (including the first linkage A and the second linkage C) can make the structure connected to it generate linkage and play the role of transmitting motion.

Embodiment one

On the basis of the above solution, in Embodiment 1 of the present invention, as shown in Figure 2 and Figure 3, the support frame further includes a rotating part 40 pivotally connected with the first mounting part 10, the first linkage A and the second The link C is arranged on the rotating part 40, the second link C is located between the pivot point between the rotating part 40 and the first mounting part 10 and the first link A, and the first end of the first connecting part 30 is connected to The elastic part 20 is connected, the second end of the first connecting part 30 is connected in linkage with the second linkage part C, the second connecting part 50 is connected in linkage with the first linkage part A, and the rotating part 40 can be connected with the first mounting part around the rotating part 40 The pivot point between 10 swings, referring to the specific structure in FIG. 2 .

At this time, the radius of the first preset arc track is greater than the radius of the second preset arc track, and the first guide member 71 is a guide wheel.

The second connecting part 50 is a connecting rope, and the support frame also includes a third guide 72 connected to the first mounting part 10, one end of the connecting rope is linked with the first linkage A, and the other end of the connecting rope bypasses the third guide The part 72 is connected to the second mounting part 60 afterward, and when relative movement occurs between the second mounting part 60 and the first mounting part 10 , the connecting rope moves to drive the elastic part 20 to deform.

One end of the connecting rope is fixedly connected to the first linkage A or bypasses the first linkage A and then fixedly connects to the first mounting piece 10. Referring to Figures 2 and 3, the other end of the connecting rope bypasses the third guide 72 Connect to the second mount 60 .

It should be noted that the third guide 72 can be used to keep the connecting rope in a tensioned state all the time, and the third guide 72 can also change the direction of the force acting on the connecting rope so that it acts on the rotating member 40. The three guides 72 can be adaptively provided in multiples according to the turning needs of the force.

In the schematic structure of the third guide member 72 in FIG. 2 and FIG. 3 , the two third guide members 72 are arranged at intervals along the first direction, so that the arrangement can not only provide a guiding effect for the connecting rope to move on the second mounting member 60 During the process, the force is transmitted to the rotating member 40 through the connecting rope, which can also ensure that the connecting rope on the opposite side of the elastic member 20 is always kept in a tensioned state, and at the same time ensure that the directions of the two forces acting on the rotating member 40 are opposite.

As a preferred solution, as shown in Figure 4, the third guide 72 may include a coaxial first sub-pulley 721 and a second sub-pulley 722, the diameter of the first sub-pulley 721 is smaller than the diameter of the second sub-pulley 722, connected The rope includes a first rope segment 51 and a second rope segment 52, one end of the first rope segment 51 is linked with the first link A, the other end of the first rope segment 51 is connected with the first sub-pulley 721, and the second rope segment One end of the second rope segment 52 is connected to the second sub-pulley 722 , and the other end of the second rope segment 52 is connected to the second mounting part 60 .

Through the above arrangement, not only can it be ensured that the connecting ropes on the opposite side of the elastic member 20 are always in a tensioned state, and the directions of the two forces acting on the rotating member 40 are guaranteed to be opposite, but also the ratio of the variable diameter wheel can make the elastic member smaller. A large amount of deformation obtains a larger stroke of the second mounting part 60 .

As a preferred solution, the support frame can also include a second guide 73 connected to the first mounting member 10, and the other end of the rope as the first connecting member 30 bypasses the second guide 73 and the first guide 71 in turn. It is connected with the rotating member 40 , wherein the point of tangency between the rope and the second guiding member 73 is located on the extension line of the axis of the elastic member 20 .

By arranging the second guide 73 and the first guide 71 on the first mounting part 10, the position of the elastic member 20 can be limited on the one hand, so that the elastic member 20 will not be shifted due to the rotation of the rotating member 40, ensuring elasticity. The member 20 moves in the first direction as far as possible; on the other hand, the rope can be set to form an angle with the rotating member 40, so as to control the elastic torque of the elastic member 20 to make the rotating member 40 rotate.

The first guide piece 71 and the second guide piece 73 are arranged on the first mounting piece 10 at intervals. Through the above arrangement, while ensuring that the elastic piece 20 does not deviate with the rotation of the rotating piece 40, the first connecting piece can also be 30. Stay tense all the time.

Of course, in an alternative embodiment not shown in the drawings, the specific arrangement of the first guide member 71 and the second guide member 73 can also be selected according to the relative positions of the elastic member 20 and the rotating member 40 .

When the support frame of the first embodiment above is used in a display device, the second mounting part 60 is a slider connected to the display, and the slider is movably arranged relative to the first mounting part 10 .

Through the above settings, the display device can be stopped at different height positions on the first mounting part 10 to meet the needs of multi-scenario use, and overcome problems such as complicated adjustment steps in the height adjustment process and difficulty in maintaining a stable state after adjustment and positioning.

As shown in FIG. 6 and FIG. 7 , when the support frame of Embodiment 1 is used for a lift table, the lift table includes a desktop 100 and a support frame connected to the table top 100 . In this way, the first mounting part 10 is the desktop 100, the second mounting part 60 is connected with the legs 101 of the lifting table or the legs themselves are the second mounting part 60, and the first mounting part 10 can be vertically moved relative to the legs 101. Mobile settings.

Through the above settings, when the desktop 100 of the lifting table, that is, the first mounting part 10, is raised or lowered to a desired position, the desktop 100 is pulled up or pressed down, and the connecting rope moves along the first direction and drives the rotating part 40. When the swing occurs, the first connecting member 30 also moves in the first direction under the swinging action of the rotating member 40, so that the elastic member 20 is deformed accordingly, so as to ensure that the two forces acting on the rotating member 40 are always in balance, and finally realize The desktop 100 of the lift table hovers at any position in the vertical direction.

It should be noted that, in FIG. 6 and FIG. 7 , the function of the rope 90 is to ensure that the two second mounting parts 60 embedded in the leg 101 can move synchronously in the vertical direction. Of course, the second mounting part 60 itself is a fixed leg in the leg 101 of the lift table.

In the schematic structure of the first guide 71 and the second guide 73 in FIG. 6 , the first guide 71 and the second guide 73 are arranged at intervals along the second direction perpendicular to the first direction, and the two first guides The guides 71 are arranged at intervals along the first direction.

Embodiment two

The difference between the support frame of Embodiment 2 and the support frame of Embodiment 1 lies in: the specific way that the first link A and the second link C move along the preset track, refer to the schematic structure of the track in FIG. 8 .

Specifically, in this embodiment, the rotating member 40 pivotally connected to the first mounting part 10 is not provided, but two rails are provided on the first mounting part 10 . With reference to the schematic structure of the track in Figure 8, the support frame also includes a first track 41 and a second track 42 that are all arranged on the first mounting member 10, the radius of the second track 42 is smaller than the radius of the first track 41, and the first linkage Part A is in sliding fit with the first track 41 , and the second linkage part C is in sliding fit with the second track 42 .

It should be noted that when the first linkage A is slidably matched with the first track 41, and when the second linkage C is slidably matched with the second track 42, the first linkage A and the second linkage C are fixedly connected by means of a connecting rod or the like. , to ensure the linkage relationship between the first linkage A and the second linkage C.

Other structures and application products in the second embodiment are the same as those in the first embodiment, and will not be repeated here.

Embodiment three

The difference between the support frame of the third embodiment and the support frame of the second embodiment is that only the first rail 41 is provided in the third embodiment, and the second rail 42 is not provided, and the specific structure of the first guide member 71 is referred to FIG. 9 Schematic structure of the middle rail and the first guide 71.

In this way, both the first linkage A and the second linkage C cooperate with the first track 41 slideways, and the preset tracks of the first linkage A and the second linkage C coincide.

It should be noted here that the first linkage A and the second linkage C are two independent linkages, and the first linkage A and the second linkage C coincide in a direction perpendicular to the first mounting part 10; Alternatively, the first linkage A and the second linkage C constitute an integral linkage, and the linkage is provided with two linkage points, wherein one linkage point is connected with the first guide 71, and the other linkage point is connected with the first guide 71. The two connectors 50 are connected.

As a preferred solution, referring to the schematic structure of the first guide 71 in Fig. 9, the first guide 71 includes a first guide wheel 711 and a second guide wheel 712 coaxially arranged, and the radius of the first guide wheel 711 is smaller than that of the second guide wheel 711. The radius of the guide wheel 712 is two ropes, the elastic member 20 is connected to the first guide wheel 711 by a rope, and the second link C is connected to the second guide wheel 712 by another rope.

It should be noted here that, in this embodiment, the first linkage A and the second linkage C are overlapped and arranged along the direction perpendicular to the first track 41, wherein the first linkage A and the second linkage C are independent The two linkages, or the first linkage A and the second linkage C are combined into a new integral linkage B, and the integral linkage B has linkage connections with the first connecting piece 30 and the second connecting piece 50 respectively. Just two parts.

Other structures and application products in the third embodiment are the same as those in the second embodiment, and will not be repeated here.

Embodiment four

The difference between the support frame of Embodiment 4 and the support frame of any one of Embodiments 1 to 3 lies in: the specific structure of the second connector 50 , refer to FIG. 1 , and the schematic structure of the second connector 50 in FIGS. 8 to 12 .

The second connecting member 50 is a connecting rod, one end of the connecting rod is hinged to the first link A, and the other end of the connecting rod is hinged to the second mounting member 60 .

Through the above arrangement, the gravity component of the component to be adjusted acting on the second connecting member 50 can act on the rotating member 40 through the first linkage A, so that the rotating member 40 can pivot around the rotating member 40 and the first mounting member 10 Point rotation, when the rotating member 40 rotates, because one end of the first connecting member 30 is connected with the elastic member 20, the second end of the first connecting member 30 is connected to the rotating member 40 through the second linkage C, so that the first connecting member 30 moves and then drives the elastic member 20 to deform, and the elastic force generated by the deformation of the elastic member 20 also acts on the rotating member 40 through the first connecting member 30. At this time, the component force of the gravity of the component to be adjusted and the elastic member 20 The elastic force generated by the deformation acts on the rotating member 40 together, and according to the principle of moment balance, the second mounting member 60 can finally hover at different height positions.

The gravitational torque of the second connecting member 50 to the rotating member 40 and the elastic torque of the first connecting member 30 to the rotating member 40 satisfy the following conditions:

M _F -M _G =0, namely G*L1*sin(b)/cos(c)=F*L2*sin(a), where M _F =F*L2*sin(a); M _G =G *L1*sin(b)/cos(c).

Among them, G refers to the weight of the part to be adjusted, and the unit is N; F refers to the elastic force of the elastic member 20, and the unit is N; L1 refers to the length of the rotating member 40, and the unit is m; L2 refers to the rotating member The distance between the second linkage C on the rotating member 40 and the pivot point O of the rotating member 40 and the first mounting member 10 is in m; b refers to the angle between the rotating member 40 and the second connecting member 50 c refers to the angle between the second connecting member 50 and the vertical direction; a refers to the angle between the rotating member 40 and the first connecting member 30 .

It should be noted that the gravitational torque of the second connecting member 50 on the rotating member 40 and the elastic torque of the first connecting member 30 on the rotating member 40 satisfy M _F −M _G =0. When the component to be adjusted moves on the slide rail 12 through the second mounting part 60, the angle b between the rotating part 40 and the second connecting part 50, the angle c between the second connecting part 50 and the vertical direction, and The angle a between the rotating member 40 and the first connecting member 30 will change accordingly, which can ensure the establishment of the formula of G*L1*sin(b)/cos(c)=F*L2*sin(a), namely The gravitational torque and elastic torque are always in balance (refer to FIG. 5 for the specific principle). Therefore, through the above configuration, the component to be adjusted can hover at any height position of the first mounting part 10 .

Other structures in Embodiment 4 may be the same as any one of Embodiments 1 to 3, and will not be repeated here.

other structures

As shown in FIG. 1 , the supporting frame further includes a base 11 and a panel 61 . One side of the base 11 is connected to the first mounting part 10 through locking parts such as screws, and the other side of the base 11 is in contact with the support surface. The base 11 is used to install the first mounting part 10, and the panel 61 is installed on the second mounting part. On the part 60, it is used to install the display and wait for the adjustment parts.

The first mounting part 10 is installed on the base 11, the panel 61 is installed on the second mounting part 60, and the second mounting part 60 can move along the slide rail 12 in the vertical direction. It moves up and down with the movement of the second mounting part 60 to meet the use of more application scenarios.

Preferably, in order to ensure smooth sliding of the second mounting part 60 , a slide rail 12 is provided on the first mounting part 10 , and the second mounting part 60 is slidingly matched with the slide rail 12 . Since the slide rail 12 has a sliding stroke, the sliding of the second mounting member 60 on the slide rail 12 has a maximum position limit and a minimum position limit.

As shown in Figure 11, the second mounting member 60 is located at the highest position of the slide rail 12, and for the same member to be adjusted, the deformation of the elastic member 20 is the smallest at this time, that is, the elastic force of the elastic member 20 is the smallest; as shown in Figure 12 , the second mounting part 60 is located at the lowest position of the slide rail 12. For the same part to be adjusted, the deformation of the elastic part 20 is the largest at this time, that is, the elastic force of the elastic part 20 is the largest.

As shown in FIGS. 10 to 12 , the support frame further includes an adjustment structure 80 for adjusting the stretching amount of the elastic member 20 . The adjustment structure 80 includes a screw rod 82 and an adjustment member 81 threadedly connected with the screw rod 82. The adjustment member 81 is connected with the elastic member 20, and the screw rod 82 is rotatably fixed on the first mounting member 10, so that the adjustment member 81 drives the elastic member 20 along the The axial direction of the screw 82 moves linearly.

In the above technical solution, the adjustment structure 80 includes a screw rod 82 and an adjustment member 81 threadedly connected with the screw rod 82, the adjustment member 81 is connected with the elastic member 20, and the screw rod 82 is rotatably fixed on the first mounting member 10. Through the above arrangement, Turning the screw rod 82 can drive the adjustment member 81 to move along the screw rod 82, thereby adjusting the elastic force of the elastic member 20, so that the support frame can adapt to parts to be adjusted with different loads.

Embodiment five

The difference between the support frame of embodiment five and the support frame of embodiment one is:

First: the specific structure of the first mounting part 10 and the second mounting part 60;

Second: the number of elastic members 20 is two;

Third: the specific structure of the third guide member 72 .

Referring to Fig. 19 to Fig. 22, the support frame further includes a first fixed block 102, and the third guide member 72 includes a coaxial first sub-pulley 721 and a second sub-pulley 722, and the second sub-pulley 722 has a receiving cavity. A slot 723 is provided in the accommodating cavity, and the first fixing block 102 is installed in the slot 723 to fix and limit part of the second connecting member 50 located in the accommodating cavity. The first sub-pulley 721 and the second sub-pulley 722 At least one of them is provided with a helically wound rib structure 724 to space the adjacent turns of the second connecting member 50 wound on the first sub-pulley 721 and/or the second sub-pulley 722 .

In the above technical solution, the second connecting member 50 is a rope, the second connecting member 50 is wound around the second sub-pulley 722 with a predetermined length, and the second sub-pulley 722 is provided with an opening on the side close to the first sub-pulley 721 , A part of the second connecting piece 50 is located in the receiving chamber and is fixed by the first fixing block 102 . One end of the second connecting piece 50 can pass through the opening, and then wrap around the first sub-pulley 721 . Through the above arrangement, it can be ensured that when one end of the second connecting member 50 is pulled, the other end will not move, which is equivalent to two independent ropes. In addition, the second sub-pulley 722 is set at the end far away from the first sub-pulley 721 The second cover plate 116 can prevent the first fixing block 102 from coming out of the slot 723 . The rib structure 724 on the first sub-pulley 721 and the second sub-pulley 722 can separate the winding rope, avoiding the contact wear and tear of the rope during the winding process, and at the same time, it can also prevent the rope from being broken during the winding process. Mutual contact produces abnormal noise.

Referring to Fig. 13 to Fig. 17, the support frame also includes a limit structure, which is arranged on the first mounting part 10, and under the limit action of the limit structure, the adjusting part 81 can drive the elastic part 20 to move along the screw rod. 82 moves a preset distance.

Through the above setting, the stretching length of the elastic member 20 can be limited to ensure that the deformation of the elastic member 20 is within a reasonable range, thereby avoiding failure or damage of the elastic member 20 due to excessive stretching.

Referring to Fig. 13 to Fig. 17, the limiting structure includes a rotation-stopping plate 103 and a fixing plate 104 connected to the first installation part 10, the rotation-stopping plate 103 is installed on the adjusting part 81, and the fixing plate 104 is provided with a limiting groove 105 , the anti-rotation plate 103 is provided with a first limiting member 106 , and the end of the first limiting member 106 away from the adjusting member 81 is locked in the limiting groove 105 and can slide along the extending direction of the limiting groove 105 .

In the above technical solution, one end of the elastic member 20 is connected to the adjustment member 81, the anti-rotation plate 103 is installed on the adjustment member 81, and the first limiting member 106 on the anti-rotation plate 103 is clamped in the limiting groove 105, at this time , the anti-rotation plate 103 can only slide along the extension direction of the limit groove 105 relative to the fixed plate 104, and the two ends of the adjustment member 81 are respectively connected with the two ends of the anti-rotation plate 103, so that the length of the elastic member 20 can be adjusted when the screw rod 82 is turned. At this time, due to the limiting effect between the first limiting member 106 and the fixed plate 104, the anti-rotation plate 103 will not rotate in the circumferential direction, and the adjusting member 81 will not rotate in the circumferential direction, so that it can ensure that the two elastic members 20 It will not rotate relative to the fixed plate 104, thereby ensuring the structural stability and reliability of the device.

Specifically, the anti-rotation plate 103 includes a first plate section 1031, a second plate section 1032 and a third plate section 1033, the second plate section 1032 is bent relative to the first plate section 1031, and the third plate section 1033 is bent relative to the second plate section 1033. The plate segment 1032 is bent, the first plate segment 1031 and the second plate segment 1032 are provided with anti-rotation grooves 107 , and the two ends of the adjusting member 81 respectively engage with the anti-rotation grooves 107 for anti-rotation. Wherein, the first limiting member 106 is arranged on the second plate section 1032, the anti-rotation groove 107 has a first anti-rotation plane, and the two ends of the adjustment member 81 are connecting sections adapted to the anti-rotating groove 107, and the connecting section has The second anti-rotation plane matched with the first anti-rotation plane, this kind of cooperation can increase the friction force between the adjustment member 81 and the anti-rotation groove 107, so that there will be no relative rotation between the two, thereby improving Anti-rotation effect.

13 to 16, in one embodiment of the present invention, the support frame further includes a connecting shaft 108, the number of elastic members 20 is two, and one end of the two elastic members 20 is connected to the adjustment member 81, The other ends of the two elastic members 20 are all connected to the connecting shaft 108, the outer wall of the connecting shaft 108 is provided with a groove, one end of the first connecting member 30 is sleeved on the groove, and the other end of the first connecting member 30 is connected to the rotating shaft. Part 40 linkage connection.

In the above technical solution, the ends of the two elastic members 20 away from the adjustment member 81 are respectively hung on the two ends of the connecting shaft 108, one end of the first connecting member 30 is sleeved at the groove, and the other end is connected to the second linkage C linkage connection. Through the above arrangement, the two elastic members 20 can be linked and connected with the second linkage member C, so that the first connecting member 30 can move to drive the deformation of the elastic member 20, and the elastic force generated by the deformation of the elastic member 20 can pass through the first connection The member 30 acts on the rotating member 40. At this time, the component force of the gravity of the part to be adjusted and the elastic force produced by the deformation of the elastic member 20 act together on the rotating member 40. According to the principle of moment balance, the second mounting member 60 and the second mounting member 60 are finally realized. The components to be adjusted mounted on the second mounting part 60 hover at different height positions.

As shown in Figure 18 and Figure 21, the support frame also includes a second fixing block 109, the second mounting part 60 includes a connecting plate 110 and a clamping plate 111, the clamping plate 111 is installed on the connecting plate 110, and the clamping plate 111 and the connecting plate 110 form a In the locking space, the second fixing block 109 is installed on the first end of the second connecting member 50, and the second fixing block 109 is located in the locking space.

In the above technical solution, the second fixing block 109 is installed at the end of the second connecting piece 50, the connecting plate 110 and the clamping plate 111 are connected by screws, the second fixing block 109 is located between the connecting plate 110 and the clamping plate 111, and the screw can The second fixing block 109 is limited so that it will not escape from the clamping space. This installation method is stable and reliable, and the second fixing block 109 will not be exposed to the outside, which can prevent the second fixing block 109 from contacting the inner wall of the first mounting part 10 during the process of the second mounting part 60 sliding up and down, causing abnormal noise The problem.

Referring to FIGS. 13 to 25 , the second mounting part 60 also includes a mounting seat 112 and a second limiter 113 , the mounting seat 112 is connected to the connecting plate 110 , and the mounting seat 112 is close to the end face of one end of the first mounting part 10 A mounting groove 114 is provided on the top, and the second limiting member 113 is installed in the installing groove 114. The second limiting member 113 is located between the mounting seat 112 and the first mounting member 10, and is against the outer surface of the first mounting member 10. catch.

Since the connecting plate 110 has a certain toughness, when the mounting seat 112 is adjusted or rotated left and right, the mounting seat 112 will shake. In the above technical solution, at least one second limiting member 113 is provided at both ends of the mounting base 112, and the second limiting member 113 is located between the mounting base 112 and the first mounting member 10 and is connected to the first mounting base 112. When the outer surfaces are in contact with each other, when adjusting or rotating the mounting base 112, since the second stopper 113 abuts between the first mounting base 112 and the mounting base 112, the shaking range of the mounting base 112 can be reduced, thereby improving the height of the mounting base 112. structural stability.

It should be noted that the second mounting member 60 also includes a first cover plate 115 and a rotating shaft 117, the second limiting member 113 can be a roller, the roller is installed in the installation groove 114 through the rotating shaft 117, and the first cover plate 115 is fixed by bolts On the mounting seat 112 , the first cover plate 115 can prevent the roller from falling out of the mounting groove 114 . Moreover, since the roller can roll, when moving the second mounting part 60 up and down, even if it touches the first mounting part 10, it will not affect its sliding up and down. The adjustment structure 80 in this embodiment is also applicable to the support frames in Embodiments 1 to 4, which will not be repeated here.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: by arranging the elastic member on the first mounting member, the first linkage member A can move along the first preset arc track It is set that the second link C is movably arranged along the second preset arc track, the first end of the first link is connected with the elastic member, the second end of the first link is linked with the second link C, There is relative movement between the second mounting part and the first mounting part, so that when the relative movement occurs between the second mounting part and the first mounting part, the first linkage A moves along the first preset track, and the second linkage Part C moves along the second preset arc track, the first connecting part moves to drive the elastic part to deform, and the second mounting part or the first mounting part can hover at different heights to meet the needs of multiple scenarios. In addition, When adjusting the height, you only need to pull up or press the part to be adjusted to the desired position to hover freely at any height position. The adjustment is convenient, and the problem of complicated adjustment steps in the height adjustment process is overcome.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

A support frame, characterized in that it comprises:

a first mounting part (10);

an elastic member (20), arranged on the first mounting member (10);

The first connecting piece (30) and the second connecting piece (50);

The first linkage A is movably arranged along a first preset arc track;

The second linkage C is in linkage connection with the first linkage A, the second linkage C is movably arranged along a second preset arc track, and the radius of the second preset arc track is less than or Equal to the radius of the first preset arc track; the first end of the first connecting member (30) is connected to the elastic member (20), and the second end of the first connecting member (30) is connected to the The second linkage part C is connected in linkage, and the second connection part (50) is connected in linkage with the first linkage part A;

The second mounting part (60), along a preset direction, has relative movement between the second mounting part (60) and the first mounting part (10), and the second mounting part (60) and the The second connecting part (50) is connected, wherein when relative movement occurs between the second mounting part (60) and the first mounting part (10), the first linkage A Assuming that the arc track moves, the second linkage member C moves along the second preset arc track, the first connecting member (30) moves to drive the elastic member (20) to deform, and the first connecting member (30) moves. The second mounting part (60) or the first mounting part (10) has a hovering support position.
The support frame according to claim 1, wherein the support frame further comprises:

A rotating part (40), pivotally connected with the first mounting part (10), the first linkage A and the second linkage C are arranged on the rotation part (40), and the second linkage C is located at Between the pivot point between the rotating part (40) and the first mounting part (10) and the first linkage A, the first end of the first connecting part (30) and the The elastic member (20) is connected, the second end of the first connecting member (30) is connected in linkage with the second linkage member C, and the second connection member (50) is connected in linkage with the first linkage member A , the rotating member (40) can swing around a pivot point between the rotating member (40) and the first mounting member (10).
The support frame according to claim 1, wherein the support frame further comprises:

The first track (41) is arranged on the first mounting part (10), and both the first linkage A and the second linkage C are matched with the slideway of the first track (41), so The preset tracks of the first linkage A and the second linkage C coincide; or,

The support frame also includes a first track (41) and a second track (42) both arranged on the first mounting part (10), and the radius of the second track (42) is smaller than that of the first track (41), the first linkage A is in sliding fit with the first track (41), and the second linkage C is in sliding fit with the second track (42).
The support frame according to any one of claims 1 to 3, characterized in that, the second end of the first connecting member (30) is fixedly connected with the second linkage C or bypasses the second Linkage piece C is fixedly connected with described first mounting piece (10) afterward, and described second connecting piece (50) is fixedly connected with described first linkage piece A or bypasses described first linkage piece A and is connected with described The first mounting part (10) is fixedly connected.
The supporting frame according to claim 2 or 3, characterized in that, the first connecting member (30) is a rope, and the supporting frame further comprises a first guiding member connected with the first mounting member (10) (71), one end of the rope is connected to the elastic member (20), and the other end of the rope is connected to the second linkage member C after bypassing the first guide member (71).
The support frame according to claim 5, characterized in that, when the radius of the first preset arc track is greater than the radius of the second preset arc track, the first guide (71) is a guide wheel; or,

When the radius of the second preset arc track is equal to the radius of the first preset arc track, the first guide (71) includes a coaxial first guide wheel (711) and a second guide wheel (712), the radius of the first guide wheel (711) is smaller than the radius of the second guide wheel (712), the rope is two, the elastic member (20) and the first guide wheel (711) is connected by a rope, and the second linkage C and the second guide wheel (712) are connected by another rope.
The support frame according to claim 5, characterized in that, the support frame further comprises a second guide piece (73) connected to the first installation piece (10), and the other end of the rope goes around the The second guide piece (73) and the first guide piece (71) are connected to the rotating piece (40), wherein the tangent point between the rope and the second guide piece (73) is located at the elastic piece (20) on the extension line of the axis.
The support frame according to any one of claims 1 to 3, characterized in that, the second connecting member (50) is a connecting rod, and one end of the connecting rod is hinged to the first linkage A, so The other end of the connecting rod is hinged to the second mounting part (60).
The support frame according to any one of claims 1 to 3, characterized in that, the second connector (50) is a connecting rope, and the support frame also includes a The third guide (72), one end of the connecting rope is linked with the first linkage A, and the other end of the connecting rope is connected to the first linkage after bypassing the third guide (72). Two mounting parts (60), when relative movement occurs between the second mounting part (60) and the first mounting part (10), the connecting rope moves to drive the deformation of the elastic part (20) .
The support frame according to claim 9, characterized in that, one end of the connecting rope is fixedly connected to the first linkage A or bypasses the first linkage A and then connects to the first installation piece (10 ) fixed connection.
The support frame according to claim 9, characterized in that, there are two third guides (72), and the two third guides (72) are arranged at intervals along the first direction, and the third guides The member (72) is used to provide guidance for the connecting rope, so that the force is transmitted through the connecting rope during the movement of the second mounting part (60) or the first mounting part (10). to the rotating part (40).
The support frame according to claim 9, wherein the third guide (72) comprises a coaxial first sub-pulley (721) and a second sub-pulley (722), and the first sub-pulley ( 721) has a diameter smaller than the diameter of the second sub-pulley (722), the connecting rope includes a first rope segment (51) and a second rope segment (52), and one end of the first rope segment (51) is connected to The first linkage A is connected in linkage, the other end of the first rope segment (51) is connected to the first sub-pulley (721), one end of the second rope segment (52) is connected to the second The sub pulley (722) is connected, and the other end of the second rope segment (52) is connected with the second mounting part (60).
The support frame according to claim 9, characterized in that, the support frame further comprises a first fixed block (102), and the third guide member (72) comprises a coaxial first sub-pulley (721) and a second Two sub-pulleys (722), the second sub-pulley (722) has an accommodating cavity, and a slot (723) is arranged in the accommodating cavity, and the first fixing block (102) is installed in the slot (723) ), so as to fix and limit the part of the second connecting member (50) located in the accommodating cavity, at least one of the first sub-pulley (721) and the second sub-pulley (722) A helically wound rib structure (724) is provided on it to connect the second of adjacent turns wound on the first sub-pulley (721) and/or the second sub-pulley (722) Parts (50) are spaced.
The support frame according to claim 2, characterized in that, the support frame also includes an adjustment structure (80) for adjusting the stretching amount of the elastic member (20), and the adjustment structure (80) includes a screw (82) and the adjustment member (81) threaded with the screw rod (82), the adjustment member (81) is connected with the elastic member (20), and the screw rod (82) is rotatably fixed on the on the first mounting part (10), so that the adjusting part (81) drives the elastic part (20) to move linearly along the axial direction of the screw rod (82).
The support frame according to claim 14, characterized in that, the support frame further comprises a position-limiting structure, the position-limiting structure is arranged on the first installation part (10), and the position-limiting structure Under the action of position, the adjustment member (81) can drive the elastic member (20) to move a preset distance along the screw rod (82).
The support frame according to claim 15, characterized in that, the limiting structure comprises a rotation stop plate (103) and a fixing plate (104) connected to the first installation part (10), and the rotation stop plate (103) is installed on the adjusting member (81), the fixing plate (104) is provided with a limiting groove (105), and the anti-rotation plate (103) is provided with a first limiting member (106), The end of the first limiting member (106) away from the adjusting member (81) is clamped in the limiting groove (105), and can slide along the extending direction of the limiting groove (105).
The support frame according to claim 14, characterized in that, the support frame further comprises a connecting shaft (108), the number of the elastic members (20) is two, and one end of the two elastic members (20) Both are connected with the adjustment member (81), and the other ends of the two elastic members (20) are connected with the connecting shaft (108), and grooves are arranged on the outer wall of the connecting shaft (108), so that One end of the first connecting piece (30) is sheathed on the groove, and the other end of the first connecting piece (30) is linked and connected with the rotating piece (40).
The support frame according to claim 1, characterized in that, the support frame further comprises a second fixing block (109), and the second mounting part (60) comprises a connecting plate (110) and a clamping plate (111), the The splint (111) is installed on the connecting plate (110), and a clamping space is formed between the splint (111) and the connecting plate (110), and the second fixing block (109) is installed on the The first end of the second connecting piece (50), the second fixing block (109) is located in the clamping space.
A display device using a support frame, characterized in that the display device comprises a display and the support frame according to any one of claims 1 to 18, and the second mounting part (60) is connected to the display a slider, the slider is movably arranged relative to the first mounting part (10).
An elevating table using a support frame, characterized in that the elevating table comprises a desktop (100) and any one of claims 1 to 7, 9 to 12 and 14 connected to the desktop (100) The support frame, the first mounting part (10) is the desktop (100), the second mounting part (60) is connected to the leg (101) of the lifting table or the second mounting part (60 ) constituting the legs (101) of the lifting table, the first mounting part (10) is movably arranged in the vertical direction relative to the second mounting part (60)