A up-and-down linkage mechanism

Abstract

This application belongs to the field of folding structure technology, and particularly relates to a vertical linkage mechanism. It includes a fixed support, a drive mechanism, and a swing mechanism; the drive mechanism includes a drive mechanism body and a drive mechanism moving end; the fixed support is movably connected to the drive mechanism body, and the swing mechanism is movably connected to the drive mechanism moving end. The swing mechanism occupies less space and can be applied to the vertical linkage rotation in smaller, narrower spaces, providing more possibilities for the application of this entire vertical linkage mechanism in more narrow and elongated spaces.

Description

Technical Field

[0001] This application belongs to the field of folding structure technology, and in particular relates to an upper and lower linkage mechanism. Background Technology

[0002] Existing tables, especially mahjong tables, typically have their tabletops hinged to the top of the uprights for easy transport and space-saving storage when not in use. During transport or storage, the tabletop is folded along the hinge, allowing the bottom of the tabletop to fit against one side of the upright, thus achieving convenience and space-saving. However, in current technology, the support base of tables, especially mahjong tables, is usually a non-foldable mechanism. Although the base area is smaller than the tabletop area, when the tabletop is folded, the protruding base, located on the opposite side of the upright and tabletop, still occupies a certain amount of space. From a space-saving storage perspective, current folding tables, especially folding mahjong tables, still need improvement.

[0003] Taking a mahjong table as an example, in its normal state, the base can stably support the mahjong table. However, in the folded state, due to the flipping of the tabletop, the overall center of gravity of the mahjong table shifts towards the folding side. But the support center of the base is not adjusted accordingly. Therefore, existing folding mahjong tables are not very stable when folded and are only supported by the base. They are very easy to tip over to the folding side of the tabletop and are usually placed against the wall.

[0004] Many tabletop folding devices on the market often have exposed folding structures for the tabletop and uprights, which are not only unsightly and easily damaged by touch, but also pose a risk of injury if bumped into, resulting in poor safety. In addition, the uprights of existing folding devices are thick and unsightly, and the bases are also quite thick, which affects the user experience and takes up space.

[0005] All of the above-mentioned issues are hot topics and pain points that need to be addressed in this field. Utility Model Content

[0006] The purpose of this application is to provide a vertical linkage mechanism.

[0007] A vertical linkage mechanism includes: a fixed support, a drive mechanism, and a swing mechanism;

[0008] The drive mechanism includes a drive mechanism body and a drive mechanism moving end;

[0009] The fixed bracket is movably connected to the main body of the drive mechanism, and the swing mechanism is movably connected to the moving end of the drive mechanism.

[0010] Preferably, the drive mechanism includes any one of an electric drive mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism.

[0011] Preferably, the driving mechanism is an electric driving mechanism;

[0012] The drive mechanism body includes a permanent magnet synchronous motor and a lead screw assembly driven by the permanent magnet synchronous motor;

[0013] The moving end of the drive mechanism is a lead screw nut that is adapted to the lead screw assembly.

[0014] Preferably, the lead screw assembly includes: a lead screw fixing sleeve and a lead screw, the lead screw fixing sleeve being movably connected to the fixing bracket, and the permanent magnet synchronous motor driving the lead screw to rotate through gear meshing transmission.

[0015] Preferably, the upper and lower linkage mechanism includes a rotating mechanism, which is movably connected to the fixed bracket. The rotating mechanism includes a first rotating arm and a second rotating arm, and the end point of the first rotating arm is movably connected to the lower end point of the swing mechanism.

[0016] Preferably, the rotation range of the first rotating arm is from a horizontal downward 45-degree angle position to a horizontal upward 45-degree angle position.

[0017] Preferably, the rotation range of the second rotating arm is from a vertical left 45-degree angle position to a vertical right 45-degree angle position.

[0018] Preferably, the drive mechanism body is disposed within the fixed bracket.

[0019] Preferably, the upper and lower linkage mechanism includes a micro switch, which is electrically connected to the drive mechanism.

[0020] Preferably, the micro switch is fixed to one side of the swing mechanism, and the swing mechanism is provided with micro switch contacts adapted to the micro switch.

[0021] Preferably, the micro switch is fixed to the side of the position where the swing mechanism extends out of the column.

[0022] Preferably, the upper and lower linkage mechanism includes: an upper rotating component, the upper end point of the swing mechanism is movably connected to the upper rotating component, and the rotation range of the line connecting the pivot point of the upper rotating component and the upper end point of the swing mechanism is from a horizontal downward 45-degree angle position to a horizontal upward 45-degree angle position.

[0023] Compared with the prior art, this application has the following technical effects:

[0024] ① The base consists of a mobile base and a fixed base. The uprights are set on the fixed base. When the mobile base is fully extended, the machine cover is horizontal. The entire base is symmetrical from left to right. The rotation of the machine cover and the extension of the mobile base are synchronized. Moreover, the center of gravity of the desktop on the machine cover moves in a manner that is basically consistent with the real-time center of gravity of the entire base. This overcomes the defects of unstable center of gravity and large space occupation after folding. At the same time, it makes the extension of the base and the rotation of the machine cover synchronized, improving the user experience.

[0025] ② When the machine cover is horizontal, the height of the fork arm is flush with the surface of the machine cover, and the machine cover is centered. When the machine cover is vertical, the thickness of the fork arm is the same as the thickness of the machine cover, which can be approximately the thickness of a tabletop. When the mobile end base is fully popped out, the base consisting of the fixed end base and the mobile end base is symmetrically arranged, thus making full use of and saving space. The machine cover facilitates the installation and replacement of the tabletop, and the space inside the machine cover can also be used to install the necessary accessory structure for the tabletop, improving the compatibility of the folding device. It can easily install various tabletop devices, such as the main unit of an electric mahjong machine or an electric playing card machine, and the main unit tabletop can be installed on the machine cover.

[0026] In this application, the thickness of the fork arm is the same as the thickness of the column, and the thickness of the fork arm is the same as the thickness of the machine cover. When the machine cover is vertical, the swing mechanism is embedded in the machine cover, thereby ensuring that after folding, the tabletop on the side of the machine cover that is mounted on the table is in close contact with the machine cover and the column, saving space and protecting the swing mechanism.

[0027] ③ The vertical linkage mechanism within the entire column swings synchronously with the vertical movement of the swing mechanism. Moreover, with a very small swing amplitude, it saves the space occupied by the vertical linkage mechanism. By designing a specific positional relationship between the vertical connection point of the swing mechanism (specifically composed of the upper swing arm and connecting rod in the embodiment) and the rotation point of the machine cover or the rotation point of the rotating mechanism (specifically the lower swing arm in the embodiment), the vertical stroke of the swing mechanism can be converted into the actual required rotation stroke of the machine cover or the rotating mechanism. The rotating mechanism then converts the vertical stroke into the horizontal stroke by setting the first rotating arm and the second rotating arm, thereby realizing the synchronous drive of the machine cover to rotate 90 degrees and the left and right movement of the mobile end base.

[0028] ④ Through the above design, the number of structural components is greatly reduced, the space of the equipment is fully utilized, the production cost is reduced, installation and maintenance are convenient, the user experience is improved, and unexpected technical effects are achieved. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the embodiments of the present application to explain the application and do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 A 3D view of the machine cover in a vertical position while the mobile device base retracts;

[0031] Figure 2 Left and front views of the machine cover in vertical position while the mobile base is retracted;

[0032] Figure 3 A 3D view showing the machine casing in a horizontal position with the end base with a desktop extended.

[0033] Figure 4 This is the folded state with the desktop rotated halfway;

[0034] Figure 5 This shows the right, back, left, and front views when the desktop is rotated to vertical.

[0035] Figure 6 This is a 3D image showing the desktop rotated to a vertical position.

[0036] Figure 7 A three-dimensional structure without the outer shell of the pillars and the outer shell of the base. Figure 1 ;

[0037] Figure 8 A three-dimensional structure without the outer shell of the pillars and the outer shell of the base. Figure 2 ;

[0038] Figure 9 This is a three-dimensional structural diagram without the column housing, base housing, and machine cover.

[0039] Figure 10 This is a schematic diagram of the internal structure of the column and base when the machine cover is in a vertical position.

[0040] Figure 11 This is a schematic diagram of the machine cover structure;

[0041] Figure 12 This is a partial structural diagram of the lead screw driving a permanent magnet synchronous motor.

[0042] Figure 13 This is a schematic diagram of the internal structure of the column and base when the machine cover is in a horizontal position.

[0043] In the diagram: Desktop 1; Machine cover 2, Machine cover support plate 21, Locking shaft 22, Micro switch 23; Column 3, Fork arm 31, Connecting rod 321, Upper swing arm 322, Lower swing arm 323, Swing arm bracket 33, Lead screw nut 34, Lead screw 35, Lead screw fixing sleeve 36, Lead screw component support frame 37, Push rod bracket plate 38, Permanent magnet synchronous motor 39; Base 4, Fixed end base 41, Fixed end guide rail 411, Moving end base 42, Moving end guide rail 421, Moving base connecting rod 422. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] This embodiment consists of several parts, such as Figures 1 to 13 As shown, it specifically includes: a machine cover rotatably connected to the upper end of the column and a fixed end base at the bottom of the column, with a movable end base embedded in the fixed end base.

[0048] The machine cover, installed between the fork arms at the top of the column, has U-shaped fork arms. When the machine cover is horizontal, it is located exactly in the middle of the fork arms. This ensures that when a mahjong machine host is installed on the machine cover, the center of gravity is centered. When the machine cover is perpendicular to the fork arms, it is located inside the fork arms. In other words, the top surface of the machine cover and the ground are flush with the two sides of the fork arms. This ensures the aesthetic and simple style of the equipment and improves the user experience.

[0049] In this embodiment, a machine cover support plate is provided between the machine cover and the fork arm. The machine cover support plate is fixed on the machine cover. By using the pivot (referred to as point A) set at the upper left corner of the fork arm, when the machine cover is horizontal, it is located exactly in the middle of the fork arm. When the machine cover is vertical relative to the fork arm, the lower half of the machine cover is located exactly inside the fork arm.

[0050] A compression spring is installed inside the pivot at the upper left corner of the fork arm. The spring is in its natural state when the machine cover is horizontal and in its compressed state when the machine cover is vertical. This way, when the machine cover changes from vertical to horizontal, the motor requires more power and outputs more force than when it changes from vertical to horizontal. The compression spring can provide a certain amount of rotational force, thereby reducing the power output of the motor and saving energy consumption. When the machine cover rotates from vertical to horizontal, the spring can also play a good buffering role.

[0051] To ensure the machine cover and fork arm remain stable and wobble-free regardless of whether they are relatively horizontal or vertical, a locking seat is provided at the lower right corner of the fork arm. A corresponding locking hole is located on the machine cover support plate. The locking seat contains a locking shaft, and a locking disc is located outside the locking shaft. This mechanism can be configured, for example, to lock by rotating 90 degrees clockwise and unlock by rotating counterclockwise. The machine cover support plate has two locking holes: one for a horizontal position and one for a vertical position.

[0052] A connecting rod insertion groove is provided at the bottom of the machine cover for the connecting rod to be inserted. When the machine cover is vertical, the connecting rod is inserted into the groove, which prevents the connection between the connecting rod and the machine cover from being exposed at the bottom of the machine cover. This prevents the connecting rod and the connection between the connecting rod and the machine cover from being easily bumped and damaged. At the same time, it can maintain the simple and beautiful appearance of the equipment and improve the user's comfort.

[0053] The upper end of the connecting rod is movably connected to the bottom of the machine cover (referred to as point B), the lower end of the connecting rod is fixed to the right side of the upper swing arm, and the left side of the upper swing arm is movably connected to the lead screw nut (referred to as point C), further forming a horizontal rotational connection, such as... Figure 10 As shown, when the machine cover is in a vertical state, the bottom of the upper swing arm is movably connected to the upper left side of the lower swing arm (referred to as point D), and further connected by a horizontal rotation. The lower left side of the lower swing arm can be directly movably connected to the mobile base (referred to as point E), or the lower left side of the lower swing arm can be movably connected to the connecting rod of the mobile base, and further connected by a horizontal rotation. The mobile base is movably connected to the crossbeam on the pop-out side of the mobile base through the connecting rod of the mobile base, thus completing the retraction and pop-out of the mobile base.

[0054] The right side of the lower swing arm is movably connected to the swing arm bracket (referred to as point F), and is further connected by horizontal rotation. The swing arm bracket is fixed on the fixed end base.

[0055] Here, the function of the movable base connecting rod is to transfer the force of the lower left end of the lower swing arm moving in an arc around the fixed point of the swing arm bracket to the crossbeam on the side of the movable base in the pop-out direction, forming an outward pushing force to pop out and retract the movable base. Compared with directly connecting to the movable base, this avoids the possibility of point E getting stuck on the movable base when swinging up and down. By using the movable base connecting rod, the forward pushing force and backward pulling force of point E swinging up and down are directly converted into forward pushing force and backward pulling force, automatically solving the force of up and down swinging, making the pushing and pulling action of the movable base smoother.

[0056] A lead screw nut is fitted onto the lead screw, and a lead screw fixing sleeve is provided at the lower end of the lead screw. The lead screw fixing sleeve is movably connected to the lead screw component support frame (referred to as point G), and further connected horizontally. A permanent magnet synchronous motor is provided on the right side of the lead screw fixing sleeve. The two are fixedly connected together by a push rod bracket plate. The permanent magnet synchronous motor has a first gear on the upper part of the push rod bracket plate, and the lead screw fixing sleeve has a second gear on the upper part of the push rod bracket plate. The second gear is fixedly connected to the lead screw, and the two gears mesh with each other, thereby providing power from the permanent magnet synchronous motor to the lead screw, driving the lead screw to rotate. Since the lead screw nut cannot rotate, the lead screw rotation drives the lead screw nut to move up and down. The lead screw component support frame is fixed on the fixed end base.

[0057] An electric drive mechanism consisting of a permanent magnet synchronous motor, a lead screw, and a lead screw nut drives the lead screw nut to move up and down, thereby driving the swing mechanism consisting of the upper swing arm and the connecting rod to move up and down synchronously while swinging left and right around point C. The entire electric drive mechanism of the permanent magnet synchronous motor can also rotate around point G. This electric drive mechanism can also be replaced by a hydraulic drive or a pneumatic drive mechanism. Similarly, the body of the hydraulic drive or pneumatic drive mechanism can rotate around point G, and the top of the hydraulic drive or pneumatic drive mechanism can move up and down. At the same time, the top is set to enable the swing mechanism consisting of the upper swing arm and the connecting rod to swing left and right around point C. Therefore, the drive mechanism of this application can be an electric drive mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism.

[0058] As can be seen from the accompanying drawings, the embodiments of this application feature a meticulous spatial arrangement of the entire linkage mechanism. ① The lead screw component support frame is fixed on the left side, and the swing arm bracket is fixed on the left side, making full use of the left and right space. The lead screw nut, lead screw, and lead screw fixing sleeve are installed on the left side, and the permanent magnet synchronous motor is installed on the right side, also making full use of the left and right space. ② Looking from the inside out, the lead screw component support frame, lead screw nut, lead screw, lead screw fixing sleeve, and permanent magnet synchronous motor are installed on the innermost side, the upper swing arm and lower swing arm are installed on the middle layer, and the swing arm bracket is installed on the outermost layer, making full use of space and allowing the motion mechanism inside the entire column to be sufficiently slender, thereby making the column also sufficiently slender, increasing the simplicity and aesthetics of the equipment, and improving the user experience. ③ For example, the permanent magnet synchronous motor drive mechanism is only one set that can simultaneously drive the retraction and extension of the mobile end base and the horizontal and vertical rotation switching of the machine cover, which is convenient to operate and saves space.

[0059] The mobile terminal base is completely embedded in the fixed terminal base. The fixed terminal base is equipped with a fixed terminal guide rail, and the mobile terminal base is equipped with a matching mobile terminal guide rail, so that the mobile terminal base can slide relative to the fixed terminal base. Each of the two outer corners of the mobile terminal base is equipped with a set of rollers, and each of the two outer corners of the fixed terminal base is equipped with a set of rollers.

[0060] One end of the movable base connecting rod is movably connected to one side of the movable end base in the direction of movement, and the other end is movably connected to the lower left end of the lower swing arm. This movable connection is a rotatable connection. The lower left end of the lower swing arm generates an inward pulling force and an outward pushing force by rotating around the connection point between the lower swing arm and the swing arm bracket. This causes the movable base connecting rod to pull the movable end base relative to the fixed end base, thereby achieving the technical effect of half of the fixed end base being fixed and the other half of the movable end base being completely retracted and extended.

[0061] The width of the fixed base can be designed to be approximately equal to the sum of the thickness of the mahjong machine main unit and the thickness of the upright column. This maximizes space utilization, saves space, and facilitates equipment storage. The overall layout is as follows: Figure 5 and Figure 6 As shown, the top left side is the mahjong machine host, the top right side is the column and machine cover, and the bottom is the fixed end base. When the table is vertical, the overall thickness of the device is only the thickness of two tabletops, saving the space occupied by the device to the maximum extent.

[0062] The bottom of the fork arm has two structures. One structure is a through hole for the connecting rod to extend and move. The other structure contains a micro switch. When the lead screw nut contacts the micro switch, the machine cover rotates to a vertical 90-degree position, and the micro switch stops the permanent magnet synchronous motor. When the machine cover rotates to a horizontal position, a micro switch contact is located at the corresponding position on the connecting rod, thus stopping the motor. Of course, the micro switch contact for stopping the permanent magnet synchronous motor when the machine cover rotates to a vertical 90-degree position can also be located at the corresponding position where the connecting rod stops. This micro switch automatically disconnects the circuit when the folding device completes its two states, ensuring safety, efficiency, low production cost, and a simple structure.

[0063] The fork arm is equipped with a control switch for the permanent magnet synchronous motor, which can be defined to control the forward and reverse rotation of the motor in different states, thereby controlling the rotation of the machine cover and the retraction and ejection of the moving end base. The linkage between the control switch and the micro switch realizes the forward and reverse rotation of the permanent magnet synchronous motor.

[0064] The specific working process is as follows: For example, when the control switch is pressed on, the motor rotates forward. When the machine cover turns horizontal, the microswitch contact on the connecting rod triggers the motor's forward rotation circuit to disconnect, completing the process of the machine cover flipping to a horizontal position. Simultaneously, the process of the moving end base extending is also completed. When the control switch is pressed off, the motor rotates in reverse. When the machine cover turns vertically by 90 degrees, the microswitch contact on the lead screw nut triggers the motor's reverse rotation circuit to disconnect, completing the process of the machine cover flipping to a vertical position. Simultaneously, the process of the moving end base retracting into the fixed end base is also completed. This cycle repeats continuously.

[0065] In the process of completing this application, the problem of unstable center of gravity of the main unit installed on it when the folding device rotates can be solved, which is easy to damage the equipment. For example, when the mahjong machine host is installed on the machine cover of this application, when rotating from horizontal to vertical, the center of gravity of the mahjong machine moves from the center towards the fixed end base. At the same time, the moving end base also retracts towards the fixed end base. This ensures that the center of gravity of the mahjong machine host installed on the machine cover is always consistent with the center of gravity of the overall base composed of the moving end base and the fixed end base. This overcomes the problem of unstable center of gravity causing damage to the machine and improves the service life of the equipment. When rotating from vertical to horizontal, the center of gravity of the mahjong machine host installed on the machine cover moves from one side towards the middle. At the same time, the moving end base changes from a retracted state to an open state. This ensures that the center of gravity of the mahjong machine host is always consistent with the center of gravity of the overall base composed of the moving end base and the fixed end base. This solves the problem of unstable center of gravity of the table equipment. In addition, when the machine cover of this application changes from horizontal to vertical to one side, the moving end base retracts to the same side. This means that when the equipment is not in use, it only occupies half of the usable space, which greatly facilitates the storage and use of the equipment and improves the user experience.

[0066] In this application, when the permanent magnet synchronous motor is not installed, or when the permanent magnet synchronous motor is de-energized, the other structures of this application can still constitute a complete manual folding device, achieving the same technical effect as described above. The only difference is that one is electrically operated while the other is manually operated; otherwise, there is no difference. Therefore, this application can constitute a complete manual folding device without installing a drive mechanism, achieving similar technical effects.

[0067] This application has a wide range of applications and is easy to install and disassemble. For example, the internal space of the machine cover can be used to install some of the table structure, such as the mahjong table host, which is set on the machine cover. This makes it easy to disassemble and repair various hosts installed on the machine cover, such as the mahjong machine host or the poker machine, and improves the overall user experience of the equipment.

[0068] The design concept of this application is that the linkage mechanism inside the column can be an independent linkage mechanism, which can be applied to columns or columnar spaces with similar functions as this application.

[0069] A vertical linkage mechanism includes: a fixed bracket, a drive mechanism, and a swing mechanism; the drive mechanism includes a drive mechanism body and a drive mechanism moving end; the fixed bracket is movably connected to the drive mechanism body, and the swing mechanism is movably connected to the drive mechanism moving end.

[0070] The drive mechanism includes a rotating mechanism, which is movably connected to a fixed bracket. The rotating mechanism includes a first rotating arm, the end of which is movably connected to the lower end of a swing mechanism.

[0071] The first rotating arm rotates from a 45-degree downward horizontal position to a 45-degree upward horizontal position. The purpose is to minimize the left and right displacement of the swing mechanism.

[0072] The rotating mechanism includes a second rotating arm, which rotates from a position 45 degrees to the left to a position 45 degrees to the right. The purpose is to convert the vertical oscillation into a horizontal oscillation. The goal is to minimize the vertical displacement of the oscillation mechanism.

[0073] The vertical linkage mechanism includes: a lower horizontal moving component (corresponding to the moving end base), which is movably connected to the end point of the second rotating arm.

[0074] The drive mechanism body is housed within the fixed bracket.

[0075] The upper and lower linkage mechanism includes: an upper rotating component (corresponding to the machine cover), the upper end point of the swing mechanism being movably connected to the upper rotating component, and the line connecting the pivot point of the upper rotating component and the upper end point of the swing mechanism rotating from a horizontal downward 45-degree angle position to a horizontal upward 45-degree angle position. This corresponds to the machine cover completing a 90-degree fold.

[0076] The up-and-down linkage mechanism includes a micro switch, which is electrically connected to the drive mechanism. The micro switch is fixed near the side of the swing mechanism, and a micro switch contact adapted to the micro switch is provided at the corresponding position of the swing mechanism when it completes its stroke.

[0077] The innovation of this application design lies in:

[0078] The function of the lower swing arm is to convert the left and right movement of the mobile terminal base into up and down movement. Therefore, the E-point stroke of the up and down swing around point F is converted into the E-point stroke of the left and right swing, thereby enabling the mobile terminal base to move left and right.

[0079] The swing mechanism, consisting of the upper swing arm and the connecting rod, is movably connected to the lead screw nut at point C. As the lead screw nut moves upward, the tilt of the entire swing mechanism depends on the real-time positions of points B and D. The real-time position of point C determines the tilt angle between points C and G, which is the tilt angle of the lead screw, because the lead screw fixing sleeve is also movably connected to the lead screw fastener support frame.

[0080] This application places the permanent magnet synchronous motor and the lead screw fixing sleeve in the integral bracket composed of the swing arm bracket and the lead screw component support frame, making full use of the space inside the column. The transmission mechanism consisting of the connecting rod, the upper swing arm and the lower swing arm is located outside the drive mechanism, which also makes full use of the space inside the column.

[0081] For this application, once the machine cover has rotated, whether vertical or horizontal, the connecting rod remains vertical. This means the vertical displacement changes, but the horizontal displacement remains the same. Therefore, the trajectory of the line segment formed by points A and B must be a quarter circle, bisected by the horizontal line. This ensures that when the machine cover is vertical, the connecting rod is vertical and perfectly aligned with the bottom of the groove. Similarly, the trajectory of the line segment formed by points D and F is also a quarter circle, also bisected by the horizontal line. This ensures that the upper swing arm remains vertical in both states (whether the machine cover has rotated vertically or horizontally), meaning the vertical displacement changes, but the horizontal displacement remains the same, thus correspondingly keeping the permanent magnet synchronous motor in a vertical position.

[0082] The aforementioned precise structural design ensures that, regardless of whether the machine cover is horizontal or vertical, the AB or FE line segment always maintains a 45-degree angle with the horizontal line. This minimizes the swing amplitude of the swing mechanism composed of the upper swing arm and connecting rod during the folding process. Furthermore, in both folded states, the swing mechanism is vertical. This contrasts sharply with designs where the AB or FE line segment is not at a 45-degree angle to the horizontal line, resulting in a non-vertical swing mechanism in both folded states. The advantages of this design include energy savings, increased equipment lifespan, and a smaller space requirement for the swing mechanism. This allows for the application of the entire upper and lower linkage mechanism in more confined and narrow spaces, providing greater possibilities for its use in such environments.

[0083] The trajectory of EF was further optimized so that the angle between the EF and DF line segments was exactly 90 degrees and was bisected by the vertical line. In this way, with a given EF length, the horizontal displacement corresponding to the arc is the longest and the vertical swing amplitude is the smallest, resulting in a more uniform and symmetrical force distribution, which improves the service life of the equipment. At the same time, because the vertical swing amplitude is the smallest, the base can also be designed to be thinner.

[0084] This application fully considers the space constraints of the machine cover, columns, and base, and designs a folding device with a precise structure, low cost, high efficiency, and strong compatibility, achieving high space utilization and a stable center of gravity during operation, thereby improving the user experience.

[0085] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A vertical linkage mechanism, characterized in that, include: Fixed bracket, drive mechanism, swing mechanism; The drive mechanism includes a drive mechanism body and a drive mechanism moving end; The fixed bracket is movably connected to the main body of the drive mechanism, and the swing mechanism is movably connected to the moving end of the drive mechanism. The drive mechanism includes an electric drive mechanism; The driving mechanism is an electric driving mechanism; The drive mechanism body includes a permanent magnet synchronous motor and a lead screw assembly driven by the permanent magnet synchronous motor; The moving end of the drive mechanism is a lead screw nut that is adapted to the lead screw assembly; The lead screw assembly includes a lead screw fixing sleeve and a lead screw. The lead screw fixing sleeve is movably connected to the fixing bracket. The permanent magnet synchronous motor drives the lead screw to rotate through gear meshing transmission.

2. The vertical linkage mechanism according to claim 1, characterized in that, The aforementioned vertical linkage mechanism includes a rotating mechanism, which is movably connected to the fixed bracket. The rotating mechanism includes a first rotating arm and a second rotating arm, with the end point of the first rotating arm movably connected to the lower end point of the swing mechanism.

3. The vertical linkage mechanism according to claim 2, characterized in that, The rotation range of the first rotating arm is from a horizontal downward 45-degree angle position to a horizontal upward 45-degree angle position.

4. The vertical linkage mechanism according to claim 2, characterized in that, The rotation range of the second rotating arm is from a vertical left 45-degree angle position to a vertical right 45-degree angle position.

5. The vertical linkage mechanism according to claim 1, characterized in that, The drive mechanism body is housed within the fixed bracket.

6. The vertical linkage mechanism according to claim 1, characterized in that, The aforementioned vertical linkage mechanism includes a micro switch, which is electrically connected to the aforementioned drive mechanism.

7. The vertical linkage mechanism according to claim 6, characterized in that, The micro switch is fixed to one side of the swing mechanism, and the swing mechanism is provided with micro switch contacts adapted to the micro switch.

8. The vertical linkage mechanism according to claim 7, characterized in that, The micro switch is fixed to the side of the position where the swing mechanism extends out of the column.

9. The vertical linkage mechanism according to claim 1, characterized in that, The aforementioned vertical linkage mechanism includes an upper rotating component, the upper end point of the swing mechanism is movably connected to the upper rotating component, and the rotation range of the line connecting the pivot point of the upper rotating component and the upper end point of the swing mechanism is from a horizontal downward 45-degree angle position to a horizontal upward 45-degree angle position.

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