Connecting rod movement mechanism and display support

Abstract

The utility model discloses a connecting rod movement mechanism and a display support, and the connecting rod movement mechanism comprises a seat body, a first connecting rod module, a second connecting rod module, a first connecting end which is movably connected with one side of the first connecting rod module and one side of the second connecting rod module, and a second connecting end which is movably connected with the other side of the first connecting rod module and the other side of the second connecting rod module. And the second connecting end is arranged on the seat body. A second hinge end is arranged on the seat body, the second hinge end is hinged to the first connecting rod module and the second connecting rod module, and the other ends of the first connecting rod module and the second connecting rod module are hinged to the first connecting end; in the process that the first connecting rod module and the second connecting rod module rotate to complete the lifting action, the first connecting end correspondingly moves, the preset angle orientation of the first connecting end is kept consistent in the rotating process, and therefore in the process that a rotating mechanism connected with the first connecting end ascends and descends after the preset angle, the rotating mechanism does not rotate. The display can be oriented by keeping a certain angle, and in the process of lifting the display through the connecting rod, the display can meet the requirement of keeping a certain angle in the whole process of adjusting the display up and down.

Description

Technical Field

[0001] The utility model belongs to the technical field of display brackets, and particularly relates to a connecting rod motion mechanism and a display bracket. Background Art

[0002] A monitor stand is a device used to secure a monitor. Existing technologies offer the ability to rotate, lift, and translate the monitor. A monitor stand capable of lifting and lowering includes a lifting mechanism and a rotating mechanism capable of rotating the monitor. However, in some scenarios, users need to maintain the rotating mechanism at a certain angle, such as a maximum elevation angle, throughout the entire process of adjusting the monitor up and down. Conventional monitor stands currently fail to meet this requirement. Therefore, a link mechanism and monitor stand are needed to address this need. Utility Model Content

[0003] The purpose of the present utility model is to provide a connecting rod movement mechanism and a display bracket to solve the above-mentioned technical problems. A second hinge end is provided on the base body, and the second hinge end is hinged to the first connecting rod module and the second connecting rod module, wherein the other end of the first connecting rod module and the second connecting rod module is hinged to the first connecting end; in the process of rotating the first connecting rod module and the second connecting rod module to complete the lifting action, the first connecting end moves accordingly, so that the preset angle orientation of the first connecting end remains consistent during the rotation process, so that the rotating mechanism connected to the first connecting end can maintain a certain angle orientation during the lifting and lowering process after the preset angle, and in the process of lifting the display by the connecting rod, the display can meet the requirement of maintaining a certain angle during the entire process of adjusting the display up and down.

[0004] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is as follows:

[0005] A connecting rod movement mechanism includes a base body, a first connecting rod module, a second connecting rod module, a first connecting end movably connecting one side of the first connecting rod module and the second connecting rod module, and a second connecting end movably connecting the other side of the first connecting rod module and the second connecting rod module, wherein the second connecting end is arranged on the base body. A second hinged end is arranged on the base body, and the second hinged end is hinged to the first connecting rod module and the second connecting rod module, wherein the other ends of the first connecting rod module and the second connecting rod module are hinged to the first connecting end; in the process of rotating the first connecting rod module and the second connecting rod module to complete the lifting action, the first connecting end moves accordingly, so that the preset angle orientation of the first connecting end remains consistent during the rotation process, so that the rotating mechanism connected to the first connecting end can maintain a certain angle orientation during the process of lifting and lowering after the preset angle. In the process of lifting and lowering the display by the connecting rod, the display can meet the requirement of maintaining a certain angle during the entire process of adjusting the display up and down.

[0006] Preferably, the first connecting end includes a first connecting body, a first hinged end hinged to the first connecting rod module, and a second hinged end hinged to the second connecting module, and the first hinged end and the second hinged end are both provided on the first connecting body;

[0007] The second connecting end includes a second connecting body, a third hinged end hinged to the first connecting rod module, and a fourth hinged end hinged to the second connecting rod module, wherein the third hinged end and the fourth hinged end are both provided on the second connecting body;

[0008] The second connecting body is provided on the base. A second connecting body is provided on the base, wherein the second connecting body is provided with a third hinge end and a fourth hinge end and is hinged to the first connecting rod module and the second connecting rod module respectively. The other ends of the first connecting rod module and the second connecting module are hinged to the first hinge end and the second hinge end provided on the first connecting body respectively, so that the first connecting rod module and the second connecting rod module are rotated at a distance limited by the first connecting body at one end away from the second connecting body, so that the direction of the connection line between the first hinge end and the second hinge end remains consistent during the rotation of the first connecting rod module and the second connecting rod module, so that the rotating mechanism connected to the first connecting end can maintain a certain angle in the process of lifting and lowering after a preset angle. In the process of lifting the display by the connecting rod, the display can meet the requirement of maintaining a certain angle during the entire process of adjusting the display up and down.

[0009] Preferably, the first connecting rod module includes a first connecting rod; the second connecting rod module includes a second connecting rod;

[0010] The two ends of the first connecting rod are hinged to the first hinge end and the third hinge end respectively;

[0011] The two ends of the second connecting rod are hinged to the second hinge end and the fourth hinge end respectively. A rotatable connecting rod mechanism is formed between the first connecting rod, the second connecting rod, the first connecting body, and the second connecting body. When the first connecting rod and the second connecting rod rotate on the second connecting body, the first connecting rod and the second connecting rod rotate within a limited connection distance of the first connecting body, that is, the line between the first hinge end and the second hinge end is a fixed value, so that the first hinge end and the second hinge end move during the rotation of the first connecting rod and the second connecting rod to ensure that the direction of the line between the first hinge end and the second hinge end remains consistent, so that the rotating mechanism connected to the first connecting end can maintain a certain angle in the process of lifting and lowering after the preset angle. In the process of lifting the display by the connecting rod, the display can meet the requirement of maintaining a certain angle throughout the process of adjusting the display up and down.

[0012] Preferably, in the vertical projection direction, the projections of the third hinge end and the fourth hinge end do not overlap each other. Specifically, the fourth hinge end is arranged obliquely below the third hinge end and the oblique direction is arranged along the direction of installing the display.

[0013] Preferably, the line connecting the first hinge end and the third hinge end is AD, and the line connecting the second hinge end and the fourth hinge end is BC, satisfying AD=BC.

[0014] Preferably, the line connecting the first hinge end and the second hinge end is AB, and the line connecting the third hinge end and the fourth hinge end is DC, satisfying AB=DC.

[0015] Preferably, the first connecting rod, the second connecting rod, the first hinge end, and the second hinge end are arranged in groups and are arranged in one group or in two symmetrical groups. The first connecting rod arranged in groups is designed as an integral whole; two groups are arranged to form a four-bar linkage, which is symmetrically arranged and the overall structure is more stable.

[0016] Preferably, the first connecting rod is connected to one end of a tension spring near the second connecting end, and the second connecting rod is connected to the other end of the tension spring near the first connecting end, and one or more tension springs are provided. In this technical solution, three tension springs are provided, wherein the second connecting rod is fixedly connected to the first tension spring fixing hook, and the first tension spring fixing hook is connected to one end of the tension spring; the first connecting rod is fixedly provided with a second tension spring fixing hook, and the second tension spring fixing hook is connected to the other end of the tension spring; the tension springs increase the tension of the two connecting rods, thereby meeting the supporting force;

[0017] Preferably, the first connecting body includes a first block and a second block arranged opposite to the first block, and the first block and the second block are connected by a first hinge end and a second hinge end. Specifically, the first hinge end and the second hinge end are both pins fixedly arranged between the first block and the second block, wherein the first block and the second block are both provided with connecting holes for fixing the pins, wherein the pins are respectively hinged to the first connecting rod and the second connecting rod; wherein the third hinge end and the fourth hinge end are both hinge columns arranged on the second connecting body, wherein the hinge columns are respectively hinged to the first connecting rod and the second connecting rod; the first block and the second block are arranged opposite to each other, and the first hinge end and the second hinge end are connected between them, so that one end of the first connecting rod and one end of the second connecting rod are arranged between the first block and the second block in a hinged state, with multiple fitting positions, thereby improving the stability of the movement process;

[0018] Preferably, the first connection end is coaxially connected to the rotation mechanism. The first connection end is connected to the rotation mechanism, so that the display can be connected via the rotation mechanism and can be rotated to a certain angle by the rotation mechanism to reach an initial state. At the same time, during the lifting and lowering movement of the connecting rod movement mechanism, the orientations of the first hinged end and the second hinged end remain consistent, so that the orientations of the coaxially connected rotation mechanism remain consistent. As a result, when the rotation mechanism connected to the display is raised and lowered at a preset angle, the certain angle can be maintained. In the process of raising and lowering the display via the connecting rod, the display can meet the requirement of maintaining a certain angle throughout the entire process of adjusting the display up and down.

[0019] The rotating mechanism includes a connecting block and a connecting shaft connected to the connecting block, wherein the connecting shaft extends through the first connecting end. The connecting shaft extends through the midpoint of the line connecting the first hinged end and the second hinged end. The connecting block is provided so that one end of the rotating mechanism can be connected to the display, while the connecting shaft is provided at the other end. The connecting shaft extends through the first connecting body, specifically, so that the axis of the first connecting body overlaps with the connecting shaft, that is, the midpoint of the line connecting the first hinged end and the second hinged end overlaps with the position where the connecting shaft extends.

[0020] The connecting block is fixedly connected to one end of the torsion spring; the other end of the torsion spring is fixedly mounted on the second block. The connecting block is provided with a connecting cavity on the outer periphery of the connecting shaft. The connecting cavity is provided with a first limiting opening for connecting the torsion spring, and the torsion spring is partially nested in the connecting cavity. The second block is provided with a second limiting opening for connecting the other end of the torsion spring. Multiple second limiting openings are provided to meet assembly margin requirements and facilitate assembly. The torsion spring is partially nested in the connecting cavity, making the torsion spring's torsion process more stable.

[0021] A display stand comprises any one of the above-mentioned connecting rod motion mechanisms.

[0022] This application has achieved beneficial technical effects:

[0023] The second hinge end is provided on the base body of the utility model, and the second hinge end is hinged to the first connecting rod module and the second connecting rod module, wherein the other end of the first connecting rod module and the second connecting rod module is hinged to the first connecting end; in the process of the first connecting rod module and the second connecting rod module rotating to complete the lifting action, the first connecting end moves accordingly, so that the preset angle orientation of the first connecting end remains consistent during the rotation process, so that the rotating mechanism connected to the first connecting end can maintain a certain angle orientation during the lifting and lowering process after the preset angle, and in the process of lifting the display by the connecting rod, the display can meet the requirement of maintaining a certain angle during the entire process of adjusting the display up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1Shown is a schematic structural diagram of the utility model;

[0025] Figure 2 Shown is a schematic diagram of the explosion structure of the utility model;

[0026] Figure 3 Shown is a schematic diagram of the exploded structure of the second connecting rod module;

[0027] Figure 4 Shown is an exploded structural diagram of the connecting rod motion mechanism;

[0028] Figure 5 Shown is a side structural schematic diagram of the present utility model;

[0029] Figure 6 Shown Figure 5 AA-direction cross-sectional structural diagram;

[0030] Figure 7 Shown Figure 5 BB-direction cross-sectional structural diagram;

[0031] Figure 8 Shown Figure 5 CC-direction cross-sectional structural diagram;

[0032] Figure 9 Shown is a schematic structural diagram of the first connection end;

[0033] Figure 10 The figure shows a schematic diagram of the connection structure between the first connecting end and the first connecting rod module and the second connecting rod module;

[0034] Figure 11 Shown is a schematic diagram of the explosion structure connecting the block and the torsion spring;

[0035] Figure 12 Shown is a schematic diagram of the arrangement structure of the first limiting block and the first limiting frame;

[0036] Figure 13 The figure shows a schematic diagram of the rotation state of the connecting rod motion mechanism;

[0037] Figure 14 Shown is a schematic diagram of the hinge position of the connecting rod movement mechanism;

[0038] Figure 15 The figure shows the state diagram of the connecting rod movement mechanism rotating to the highest point;

[0039] Figure 16 The figure shows the structure of the connecting rod movement mechanism when it rotates to the lowest point;

[0040] Figure 17 The figure shows the structure of the rotating mechanism when it rotates to the lowest point;

[0041] Figure 18 The figure shows the structure of the rotating mechanism when it rotates to the highest point;

[0042] Figure 19 FIG2 is a schematic diagram showing one mode of operation of the connecting rod motion mechanism connected to the display of the present invention;

[0043] Figure 20 FIG2 is a second schematic diagram showing the operation mode of connecting the connecting rod movement mechanism to the display of the present invention.

[0044] Reference numerals

[0045] 1-first connecting rod module; 2-second connecting rod module; 3-base; 4-first connecting end; 5-second connecting end; 40-first connecting body; 41-first hinged end; 42-second hinged end; 50-second connecting body; 51-third hinged end; 52-fourth hinged end; 11-first connecting rod; 21-second connecting rod; 6-tension spring; 110-second tension spring fixing hook; 210-first tension spring fixing hook; 401-first block; 402-second block; 7-rotation mechanism ;71-connecting block;72-connecting shaft;73-nut assembly;74-torsion spring;711-connecting shaft;7111-first limiting opening;4021-second limiting opening;111-first intersection space;211-second hinge hole;4011-first fitting surface;4012-first protrusion;112-first resistance block;113-second fitting surface;212-second resistance block;213-third fitting surface;114-first resistance groove;214-second resistance groove. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0047] The technical solution of the present utility model is described in detail below with reference to specific embodiments.

[0048] Reference Figures 1 to 20As shown, a connecting rod motion mechanism includes a base body 3, a first connecting rod module 1, a second connecting rod module 2, a first connecting end 4 that movably connects one side of the first connecting rod module 1 and the second connecting rod module 1, and a second connecting end 5 that movably connects the other side of the first connecting rod module 1 and the second connecting rod module 2, wherein the second connecting end 5 is disposed on the base body 3. A second hinged end 5 is disposed on the base body 3 and is hingedly connected to the first connecting rod module 1 and the second connecting rod module 2, wherein the other ends of the first connecting rod module 1 and the second connecting rod module 2 are hingedly connected to the first connecting end 4. During the process of rotating the first connecting rod module 1 and the second connecting rod module 2 to complete the lifting action, the first connecting end 4 moves accordingly, so that the preset angular orientation of the first connecting end 4 remains consistent during the rotation process. Therefore, the rotating mechanism connected to the first connecting end 4 can maintain a certain angular orientation during the process of lifting and lowering after the preset angle. When the display is raised and lowered by the connecting rod, the display can meet the requirement of maintaining a certain angle throughout the entire process of adjusting the display up and down.

[0049] The first connecting end 4 includes a first connecting body 40, a first hinged end 41 hinged to the first connecting rod module 1, and a second hinged end 42 hinged to the second connecting module 2. The first hinged end 41 and the second hinged end 42 are both provided on the first connecting body 40.

[0050] The second connecting end 5 includes a second connecting body 50, a third hinged end 51 hinged to the first connecting rod module 1, and a fourth hinged end 52 hinged to the second connecting rod module 2. The third hinged end 51 and the fourth hinged end 52 are both provided on the second connecting body 50.

[0051] The second connecting body 50 is provided on the base body 3. The second connecting body 50 is provided on the base body 3, wherein the second connecting body 50 is provided with a third hinge end 51 and a fourth hinge end 52 and is respectively hinged to the first connecting rod module 1 and the second connecting rod module 2. The other ends of the first connecting rod module 1 and the second connecting module 2 are respectively hinged to the first hinge end 41 and the second hinge end 42 provided on the first connecting body 40, so that the ends of the first connecting rod module 1 and the second connecting rod module 2 away from the second connecting body 50 rotate at a distance limited by the first connecting body 40, so that the direction of the connection line between the first hinge end 41 and the second hinge end 42 remains consistent during the rotation of the first connecting rod module 1 and the second connecting rod module 2, so that the rotation mechanism connected to the first connecting end 4 can maintain a certain angle when it is raised and lowered after a preset angle. In the process of raising and lowering the display by the connecting rod, the display can meet the requirement of maintaining a certain angle throughout the process of adjusting the display up and down.

[0052] The first connecting rod module 1 includes a first connecting rod 11; the second connecting rod module 2 includes a second connecting rod 21;

[0053] The two ends of the first connecting rod 11 are hinged to the first hinge end 41 and the third hinge end 51 respectively;

[0054] The two ends of the second connecting rod 21 are respectively hinged to the second hinge end 42 and the fourth hinge end 52. A rotatable connecting rod mechanism is formed between the first connecting rod 11, the second connecting rod 21, the first connecting body 40, and the second connecting body 50. When the first connecting rod 11 and the second connecting rod 21 rotate on the second connecting body 50, the first connecting rod 11 and the second connecting rod 21 rotate within a limited connection distance of the first connecting body 40, that is, the line connecting the first hinge end 41 and the second hinge end 42 is a fixed value, so that the first hinge end 41 and the second hinge end 42 move during the rotation of the first connecting rod 11 and the second connecting rod 21 to ensure that the direction of the line connecting the first hinge end 41 and the second hinge end 42 remains consistent, so that the rotating mechanism connected to the first connecting end 4 can maintain a certain angle when it is raised and lowered after a preset angle. In the process of raising and lowering the display by the connecting rod, the display can meet the requirement of maintaining a certain angle throughout the entire process of adjusting the display up and down.

[0055] In the vertical projection direction, the projections of the third hinge end 51 and the fourth hinge end 52 do not overlap. Specifically, the fourth hinge end 52 is disposed obliquely below the third hinge end 51 and is tilted in the direction of mounting the display.

[0056] A line connecting the first hinge end 41 and the third hinge end 51 is AD, and a line connecting the second hinge end 42 and the fourth hinge end 52 is BC, satisfying AD=BC.

[0057] The connecting line between the first hinge end 41 and the second hinge end 42 is AB, and the connecting line between the third hinge end 51 and the fourth hinge end 52 is DC, satisfying AB=DC.

[0058] The first connecting rod 11, the second connecting rod 12, the first hinge end 41, and the second hinge end 42 are arranged in a group and are arranged in one group or two symmetrical groups. The first connecting rod 11 arranged in a group is an integral design; two groups are arranged to form a four-bar linkage mechanism, which is symmetrically arranged and the overall structure is more stable.

[0059] The first connecting rod 11 is connected to one end of the tension spring 6 near the second connecting end 5, and the second connecting rod 21 is connected to the other end of the tension spring 6 near the first connecting end 4. There are one or more tension springs 6. In this technical solution, there are three tension springs, of which the second connecting rod 21 is fixedly connected to the first tension spring fixing hook 210, which is connected to one end of the tension spring 6; the first connecting rod 11 is fixedly provided with a second tension spring fixing hook 110, which is connected to the other end of the tension spring 6. The tension spring 6 increases the tension of the two connecting rods, thereby meeting the supporting force.

[0060] The first connecting body 40 includes a first block 401 and a second block 402 arranged opposite to the first block 401 . A first hinge end 41 and a second hinge end 42 are connected between the first block 401 and the second block 402 . Specifically, the first hinge end 41 and the second hinge end 42 are both pins fixedly arranged between the first block 401 and the second block 402, wherein the first block 401 and the second block 402 are both provided with connecting holes for fixing the pins, wherein the pins are respectively hinged to the first connecting rod 11 and the second connecting rod 21; wherein the third hinge end 51 and the fourth hinge end 52 are both hinge columns arranged on the second connecting body 50, wherein the hinge columns are respectively hinged to the first connecting rod 11 and the second connecting rod 21; the first block 401 and the second block 402 are arranged opposite to each other, and the first hinge end 41 and the second hinge end 42 are connected therebetween, so that one end of the first connecting rod 11 and one end of the second connecting rod 21 are arranged between the first block 401 and the second block 402 in a hinged state, with multiple fitting positions, thereby improving the stability of the movement process;

[0061] The first connection end 4 is coaxially connected to the rotation mechanism 7. The first connection end 4 is connected to the rotation mechanism, so that the display can be connected through the rotation mechanism 7 and can be rotated to a certain angle through the rotation mechanism 7 to reach the initial state. At the same time, during the lifting and lowering movement of the connecting rod movement mechanism, the first hinge end 41 and the second hinge end 42 maintain the same orientation, so that the orientation of the coaxially connected rotation mechanism 7 remains consistent. Therefore, when the rotation mechanism connected to the display is raised and lowered at a preset angle, the certain angle can be maintained. When the display is raised and lowered by the connecting rod, the display can meet the requirement of maintaining a certain angle throughout the entire process of adjusting the display up and down.

[0062] The rotation mechanism 7 includes a connecting block 71 and a connecting shaft 72 connected to the connecting block 71. The connecting shaft 72 extends through the first connection end 4. The connecting shaft 72 extends through the midpoint of the line connecting the first hinge end 41 and the second hinge end 42. The connecting block 71 is provided so that one end of the rotation mechanism 7 can be connected to the display, while the connecting shaft 72 is provided at the other end. The connecting shaft 72 extends through the first connection end 4. Specifically, the connecting shaft 72 extends through the first connection body 40, so that the axis of the first connection body 40 overlaps with the connecting shaft 72. That is, the midpoint of the line connecting the first hinge end 41 and the second hinge end 42 overlaps with the point where the connecting shaft 72 extends.

[0063] The connecting shaft 72 sequentially passes through the second block 402 and the first block 401, and the end of the connecting shaft 72 is threadedly connected to a nut assembly 73 that contacts the surface of the first block 401. By threading the nut assembly 73 to the end of the connecting shaft 72, the connecting shaft 72 is arranged coaxially with the first block 401 and the second block 402, forming a state where the connecting shaft 72 passes through one side, and the second block 402 and the first block 401 are sequentially arranged.

[0064] The connecting block 71 is fixedly connected to one end of the torsion spring 74; the other end of the torsion spring 74 is fixedly mounted on the second block 402. The connecting block 71 is provided with a connecting cavity 711 on the outer periphery of the connecting shaft 72. The connecting cavity 711 is provided with a first limiting opening 7111 for connecting the torsion spring 74, and the torsion spring 74 is partially nested in the connecting cavity 711. The second block 402 is provided with a second limiting opening 4021 for connecting the other end of the torsion spring 74. Multiple second limiting openings 4021 are provided to meet the assembly margin requirements and facilitate assembly. The partial nesting of the torsion spring 74 in the connecting cavity 711 makes the torsion spring 74 more stable during its torsion process.

[0065] The first connecting rod 11 is provided with a first hinge hole 111 hinged to the first hinge end 41, wherein the first hinge hole 111 is coaxially arranged with the connecting hole;

[0066] The second connecting rod 21 is provided with a second hinge hole 211 hinged to the second hinge end 42, wherein the second hinge hole 211 is coaxially arranged with the connecting hole;

[0067] The first block 401 is provided with a first fitting surface 4011 at the location where the connecting hole is provided. The first block 401 is provided with a first protrusion 4012 on one side of the first fitting surface 4011. The axis of the first protrusion 4012 overlaps with the midpoint of the line connecting the first hinge end 41 and the second hinge end 42.

[0068] The first connecting rod 11 is provided with a first contact block 112 and a second fitting surface 113 in sequence on the outer edge of the first hinge hole 111; the first contact block 112 fits with the radial surface of the first protrusion 4012, and the second fitting surface 113 fits with the axial surface of the first protrusion 4012;

[0069] The second connecting rod 21 is provided with a second abutment block 212 and a third abutment surface 213 in sequence on the outer edge of the second hinge hole 211; the second abutment block 212 abuts against the radial surface of the first protrusion 4012, and the third abutment surface 213 abuts against the axial surface of the first protrusion 4012; the provision of multiple abutment surfaces makes the rotation process more stable;

[0070] The first protrusion 4012 is provided with a first limiting post 4013, wherein the first limiting post 4013 is provided on one side of the axis of the first protrusion 4012; the first connecting rod 11 is provided with a first contact groove 114 on the side of the second abutting surface 113 away from the first contact block 112, which can contact the first limiting post 4013 to limit the travel;

[0071] The second connecting rod 21 has a second contact groove 214 on the side of the third contact surface 213 away from the second contact block 212 , which can contact the first limiting column 4013 to limit the stroke.

[0072] The first and second abutment grooves 114 and 214 are provided corresponding to the first limiting posts 4013 so that the connecting rod movement mechanism is limited to operate at a certain rotation angle, thereby avoiding intersections between mechanism components and affecting the stability of the operation.

[0073] In this technical solution, the connecting rod movement mechanism takes the center between the line connecting the hinge end and the fourth hinge end as the center of the circle, and its rotatable angle X is 75°;

[0074] The rotating mechanism has a rotation angle Y of 60° with the center between the first hinge end and the second hinge end as the center of the circle;

[0075] The second block 402 is provided with a first limiting block 4022 , and the rotating mechanism is provided with a first limiting frame 75 which is arranged around the connecting shaft 72 as an axis and can interfere with the first limiting block 4022 for limiting during the rotation process.

[0076] A display stand is characterized by comprising a connecting rod movement mechanism.

[0077] Figure 15 In the middle, the connecting rod movement mechanism rotates to the highest point, which is set to 0°; Figure 16 The middle link mechanism rotates to the lowest point, at which point the angle X between it and the highest point is 75°; Figure 17The rotation mechanism is rotated to the lowest point, which is set to 0°. Figure 18 When the rotating mechanism is rotated to the highest point, the angle Y between it and the lowest point is 60°;

[0078] like Figure 19 As shown, the arrow direction displays its status in sequence, such as 1 row and 1 column to 2 rows and 1 column, and then adjusts from the lowest point of the rotating mechanism, that is, the minimum angle, to the highest point, that is, the maximum angle, such as 3 rows and 1 column, and adjusts the lifting of the connecting rod motion mechanism, first reaching the lowest point of the connecting rod motion mechanism, such as 4 rows and 4 columns, and then adjusts to the highest point of the motion mechanism, such as 6 rows and 4 columns, and then adjusts the rotating mechanism separately from the highest point to the lowest point state 7 rows and 4 columns; this adjustment method can adjust the rotating mechanism separately. After determining the angle of the rotating mechanism, during the lifting and lowering process of the adjusting connecting rod mechanism, the orientation of the display is always in the same direction, meeting the requirement of maintaining a certain angle during the adjustment process.

[0079] like Figure 20 As shown, the arrow direction shows its status in turn. After adjusting the rotating mechanism to the highest point, that is, the maximum angle, adjust the lifting and lowering of the connecting rod movement mechanism. During the lifting process, the display is always oriented in the same direction, meeting the need to maintain a certain angle during the adjustment process.

[0080] The first tension spring's fixing hook is screwed together with the second set of tension rods to form the BC lower link. The first and second hinged ends are connected to different holes, and the line between them forms the AB link. The third hinged end forms the D hinge, and the fourth hinged end forms the C hinge. The third and fourth hinged ends are located on the same part, forming the DC link. When the base is fixed, the DC link becomes the frame, and BC and AD form a double rocker mechanism. One end of the tension spring is fixed to the lower link assembly, and the other end is fixed to the upper link. Under the elastic force of the tension spring, the four-link rocker mechanism is in the highest position.

[0081] The connecting block is provided with a connecting shaft with an axis. The axis passes through the torsion spring, the second block, and the first block, and is secured with a nut, forming a hinge structure for the rotating mechanism. One arm of the torsion spring is fixed to the connecting block, and the other end is fixed to the second block. This increases the rotational force of the connecting block.

[0082] This technical solution provides an inward-moving four-bar linkage. Through the linkage design, users can freely adjust the rotating mechanism connected to the display between minimum and maximum elevation angles throughout the entire vertical adjustment process. Up and down adjustment is achieved through the four-bar linkage; tension springs provide tension to the two rockers to ensure sufficient support. The rotating mechanism and the linkage assembly are separated and connected by an axis, allowing independent movement of the rotating mechanism.

[0083] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

[0085] The above describes in detail the embodiment of a connecting rod motion mechanism and a display stand provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the core concept of the present invention. It should be noted that, for those skilled in the art, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A connecting rod motion mechanism, characterized in that: The invention comprises a base body (3), a first connecting rod module (1), a second connecting rod module (2), a first connecting end (4) movably connecting the first connecting rod module (1) and the second connecting rod module (2) on one side, and a second connecting end (5) movably connecting the first connecting rod module (1) and the second connecting rod module (2) on the other side, wherein the second connecting end (5) is arranged on the base body (3).

2. The connecting rod motion mechanism according to claim 1, characterized in that: The first connecting end (4) comprises a first connecting body (40), a first hinged end (41) hinged to the first connecting rod module (1), and a second hinged end (42) hinged to the second connecting rod module (2), wherein the first hinged end (41) and the second hinged end (42) are both arranged on the first connecting body (40); The second connecting end (5) comprises a second connecting body (50), a third hinged end (51) hinged to the first connecting rod module (1), and a fourth hinged end (52) hinged to the second connecting rod module (2), wherein the third hinged end (51) and the fourth hinged end (52) are both arranged on the second connecting body (50); The second connecting body (50) is arranged on the base (3).

3. The connecting rod motion mechanism according to claim 2, characterized in that: The first connecting rod module (1) includes a first connecting rod (11); the second connecting rod module (2) includes a second connecting rod (21); The two ends of the first connecting rod (11) are hinged to the first hinge end (41) and the third hinge end (51) respectively; Both ends of the second connecting rod (21) are hinged to the second hinge end (42) and the fourth hinge end (52) respectively.

4. The connecting rod motion mechanism according to claim 2, characterized in that: The connecting line between the first hinge end (41) and the third hinge end (51) is AD, and the connecting line between the second hinge end (42) and the fourth hinge end (52) is BC, satisfying AD=BC.

5. The connecting rod motion mechanism according to claim 2, characterized in that: The line connecting the first hinge end (41) and the second hinge end (42) is AB, and the line connecting the third hinge end (51) and the fourth hinge end (52) is DC, satisfying AB=DC.

6. The connecting rod motion mechanism according to claim 3, characterized in that: The first connecting rod (11), the second connecting rod (21), the first hinge end (41), and the second hinge end (42) are arranged in groups, and are arranged in one group or in two symmetrical groups.

7. The connecting rod motion mechanism according to claim 3, characterized in that: The first connecting rod (11) is connected to one end of the tension spring (6) near the second connecting end (5), and the second connecting rod (21) is connected to the other end of the tension spring (6) near the first connecting end (4). One or more tension springs (6) are provided.

8. The connecting rod motion mechanism according to claim 3, characterized in that: The first connecting body (40) comprises a first block (401) and a second block (402) arranged opposite to the first block (401); a first hinge end (41) and a second hinge end (42) are connected between the first block (401) and the second block (402).

9. The connecting rod motion mechanism according to claim 8, characterized in that: The first connecting end (4) is coaxially connected to the rotating mechanism (7); The rotating mechanism (7) comprises a connecting block (71) and a connecting shaft (72) connected to the connecting block (71), wherein the connecting shaft (72) penetrates and connects to the first connecting end (4); The connecting block (71) is fixedly connected to one end of the torsion spring (74); the other end of the torsion spring (74) is fixedly arranged on the second block (402); the connecting block (71) is provided with a connecting cavity (711) on the periphery of the connecting shaft (72), wherein the connecting cavity (711) is provided with a first limiting opening (7111) for connecting the torsion spring (74), wherein the torsion spring (74) is partially nested in the connecting cavity (711); the second block (402) is provided with a second limiting opening (4021) for connecting the other end of the torsion spring (74).

10. A display stand, characterized in that: It comprises a connecting rod motion mechanism as described in any one of claims 1-9.

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