A folding and unfolding mechanism for double ultra-wide thin flat plates and a method for implementing the same

Abstract

The present invention relates to the technical field of transmission mechanisms, and specifically discloses a folding and unfolding mechanism for double ultra-wide thin flat panels and an implementation method thereof, wherein the folding and unfolding mechanism for double ultra-wide thin flat panels comprises a main flat panel, a sub-flat panel hinged to a main platform, a locking device for locking the main flat panel and the sub-flat panel after folding, and a driving mechanism hinged to the main flat panel and the sub-flat panel at both ends; the driving mechanism comprises hinge seats respectively arranged on the outside of the main flat panel and the sub-flat panel and hinged to each other, and a driving device hinged to the hinge seat at one end; the other end of the driving device is hinged to the outside of the main flat panel and the sub-flat panel respectively. And discloses its implementation method, the present invention can effectively realize the large-angle folding and unfolding of the ultra-wide thin flat panel unit within the range of 0° to 180°; the structure is simple and the practicability is strong.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission mechanisms, and more particularly to a folding and unfolding mechanism for double ultra-wide thin flat plates and a method for realizing the folding and unfolding mechanism. Background Art

[0002] In the field of engineering machinery or amusement facilities, there is a functional requirement to fold and unfold two ultra-wide flat plate units. The two ultra-wide flat plate units, including the main plate and the secondary plate, are usually larger than 6 meters, and their thickness is usually less than 0.2 meters. Therefore, such plates are defined as ultra-wide thin flat plate units. Usually, the mechanism is installed on a certain foundation through the external mounting point on the main plate, and the foundation may be a moving part. There is a hinge point between the main plate and the secondary plate, and the secondary plate rotates 180° around the hinge point, and finally the secondary plate is aligned with the main plate. Functional components are usually installed on the main plate and the secondary plate, so the main and secondary plates need to have a certain rigidity in both the folded and unfolded states. If the secondary plate needs to be rotated to a certain angle relative to the main plate around a hinge point, it can usually be rotated by a push rod, one end of which is fixed to the main plate and the other end is fixed to the secondary plate. The extension and retraction of the push rod can achieve such rotation, but the following difficulties will be encountered when achieving large-angle folding and unfolding:

[0003] 1) The rotation achieved by a single push rod usually has a small angle range. When achieving a 180° rotation, the telescopic ratio of the push rod required is usually greater than 5, resulting in no available push rods available;

[0004] 2.) When using a single push rod mode, especially at 0° and 180°, the push rod thrust angle is extremely small, resulting in extremely low push rod efficiency and extremely large push rod thrust.

[0005] Patent number: CN204688219U, patent name: New flatbed dump semi-trailer, specifically involving a light flatbed, which can be rotated around a point by a hydraulic cylinder, with a maximum rotation angle of about 90°;

[0006] Patent number: CN110805329A, patent name: side-positioned three-dimensional parking device, specifically involving the use of a parallel four-bar mechanism to lift two small flat plates in parallel to a certain height, and the overall rotation angle of the small flat plates is less than 90°;

[0007] Patent number CN201410334240.5, patent name is a lifting mechanism with orthogonal posture transformation function, which is suitable for lifting materials in automated production lines with small lifting weight. The above patent does not provide for large-angle folding and unfolding of ultra-wide thin flat plate units within the range of 0° to 180°. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a folding and unfolding mechanism for a double ultra-wide thin flat panel and an implementation method thereof, which can effectively realize large-angle folding and unfolding of the ultra-wide thin flat panel unit within the range of 0° to 180°; the structure is simple and the practicability is strong.

[0009] The solution adopted by the present invention to solve the technical problem is:

[0010] on the one hand:

[0011] The present invention discloses a folding and unfolding mechanism for double ultra-wide thin flat plates, comprising a main flat plate, a secondary flat plate hinged to a main platform, a locking device for locking the main flat plate and the secondary flat plate after folding, and a driving mechanism with two ends respectively hinged to the main flat plate and the secondary flat plate;

[0012] The driving mechanism comprises hinge seats respectively arranged on the outside of the main plate and the auxiliary plate and hinged to each other, and a driving device with one end hinged to the hinge seat; the other end of the driving device is respectively hinged to the outside of the main plate and the auxiliary plate.

[0013] The present invention drives the auxiliary plate to rotate around the hinge point between the auxiliary plate and the main plate toward a side away from the main plate through a driving device, thereby effectively realizing the main plate and the auxiliary plate from a 0° folding state to a 180° unfolding state; when folded at 0°, the relative positions of the two can be effectively locked through a locking device.

[0014] In some possible implementations, in order to effectively realize folding and unfolding of the main plate and the auxiliary plate by 0°-180° through the driving device;

[0015] The driving device includes an intermediate rod with one end hinged to the hinge seat and two groups of telescopic driving members hinged to the other end of the intermediate rod; the other end of one group of telescopic driving members is hinged to the main plate, and the other end of the other group of telescopic driving members is hinged to the auxiliary plate.

[0016] In some possible implementations, in order to effectively realize the hinge connection between the main plate and the auxiliary plate, and to enable the intermediate rod to be hinged to the hinge seat;

[0017] The two groups of hinge seats are respectively provided with plate rotation hinge points, and the main plate and the auxiliary plate are hinged through the plate rotation hinge points; the intermediate rod is hinged with the two groups of hinge seats through the plate rotation hinge points.

[0018] In some possible implementations, in order to effectively realize the articulation between the intermediate rod and the two sets of telescopic driving members;

[0019] A rod hinge point is arranged at one end of the middle rod away from the plate rotation hinge point; the two groups of telescopic driving members are respectively hinged to the middle rod through the rod hinge point.

[0020] In some possible implementations, in order to effectively realize the articulation of the two sets of telescopic driving members with the main plate and the auxiliary plate respectively;

[0021] The main plate is provided with a main driving member articulated seat articulated with a group of telescopic driving members, and the auxiliary plate is provided with an auxiliary driving member articulated with another group of telescopic driving members;

[0022] The main driving member hinge seat and the auxiliary driving member hinge seat are at an equal distance from the plate rotation hinge point;

[0023] When the main plate and the auxiliary plate are unfolded at 180 degrees, the hinge point of the main driving member hinge seat and the hinge point of the auxiliary driving member hinge seat are on the same straight line.

[0024] In some possible implementations, the two groups of telescopic driving members have the same structure and are hydraulic cylinders.

[0025] In some possible implementations,

[0026] When the main plate and the auxiliary plate are folded at 0°, a gap a is formed between the main plate and the auxiliary plate on one side close to each other, and the angle formed by the two sets of telescopic driving parts along their long directions is b; wherein a>3D, D is the outer diameter of the hydraulic cylinder; b≥40°;

[0027] When the main plate and the auxiliary plate are deployed at 180°, the angle formed by the two sets of telescopic driving members along their long directions is c, 90°<c≤140°.

[0028] In some possible implementations,

[0029] The locking device comprises a locking rod installed on the outer side of the auxiliary plate, and a locking seat arranged corresponding to the locking rod and installed on the outer side of the main plate; the locking seat is provided with a hydraulic locking pin that cooperates with the locking rod to lock.

[0030] In some possible implementations, in order to make the main flat panel and the auxiliary flat panel more stable when they are unfolded or folded;

[0031] The driving mechanisms are in two groups and are symmetrically arranged. The locking devices are in two groups and are arranged on the same side as the two groups of driving mechanisms respectively.

[0032] on the other hand:

[0033] The invention discloses a method for realizing a folding and unfolding mechanism of a double ultra-wide thin flat plate.

[0034] When unfolding, the locking device is first unlocked; then the two sets of telescopic driving members extend synchronously, and the telescopic driving member hinged to the main plate drives the intermediate rod to rotate around the plate rotation hinge point to the side away from the main plate, and at the same time, the telescopic driving member hinged to the auxiliary plate drives the auxiliary plate to rotate to the side away from the main plate, until the main plate and the auxiliary plate are in a 180° unfolded state and the side walls of the two are in contact, and the unfolding is completed;

[0035] When folding, the two sets of telescopic driving parts are shortened synchronously. The telescopic driving part hinged to the main plate will drive the middle rod to rotate around the plate rotation hinge point toward the side close to the main plate. At the same time, the telescopic driving part hinged to the auxiliary plate will drive the auxiliary plate to rotate toward the side of the hinged main plate until the locking rod is perpendicular to the main plate. The locking rod is then locked with the locking seat to complete the 0° folding.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention is installed on the outer sides of the main plate and the auxiliary plate by means of the cooperation of the hinge seat, the middle rod, the two sets of telescopic driving parts, the main driving part hinge seat, and the auxiliary driving part hinge seat. On the one hand, the main plate and the auxiliary plate can be effectively folded 0° and unfolded 180°. On the other hand, the installation of functional parts on the main plate and the auxiliary plate is not affected. As a functional component installation platform, the upper installation space is large.

[0038] The present invention provides a locking device to enable the main plate and the auxiliary plate to form a whole when folded at 0°, thereby effectively improving the vibration resistance of the two during transportation;

[0039] The present invention effectively limits the length of the intermediate rod by relative angles formed by the telescopic driving members, so that the setting of the intermediate rod will not affect the functional parts installed on the main plate and the auxiliary plate;

[0040] In the folded state, all the mechanisms of the present invention are located in the area between the two flat plates. The folded state of the entire mechanism is similar to a rectangular space, and its spatial shape is regular and the space volume is small, which is conducive to the installation of the mechanism on a platform with contour restrictions such as a vehicle, and has a wide range of practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a working principle diagram of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the present invention in a 0° folded state;

[0043] Figure 3-Figure 4 It is a schematic diagram of the structure during the development of the present invention;

[0044] Figure 5This is a schematic diagram of the structure of the present invention in a 180° unfolded state;

[0045] Figure 6 It is a structural schematic diagram of the locking seat in the present invention;

[0046] Among them: 1. main plate; 11. main driving member articulated seat; 2. auxiliary plate; 21. auxiliary driving member articulated seat; 3. locking device; 31. locking rod; 32. locking seat; 321. hydraulic locking pin; 4. driving mechanism; 41. articulated seat; 42. intermediate rod; 43. telescopic driving member. DETAILED DESCRIPTION

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity restriction, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The present invention is described in detail below.

[0049] like Figure 1-Figure 6 As shown:

[0050] A folding and unfolding mechanism for a double ultra-wide thin flat panel, comprising a main flat panel 1, a secondary flat panel 2 hinged to a main platform, a locking device 3 for locking the main flat panel 1 and the secondary flat panel 2 after folding, and a driving mechanism 4 with two ends respectively hinged to the main flat panel 1 and the secondary flat panel 2;

[0051] The driving mechanism 4 includes an articulated seat 41 which is respectively arranged on the outside of the main plate 1 and the auxiliary plate 2 and is hinged to each other, and a driving device whose one end is hinged to the articulated seat 41 and is arranged on the same side as the articulated seat 41; the other end of the driving device is respectively articulated to the outside of the main plate 1 and the auxiliary plate 2 (the side where the articulated seat 41 is installed).

[0052] The locking device 3 is located at a side of the driving device away from the hinge seat 41 and at the outer sides of the main plate 1 and the auxiliary plate 2 .

[0053] The present invention drives the auxiliary plate 2 to rotate around the hinge point between the auxiliary plate 2 and the main plate 1 toward the side away from the main plate 1 through a driving device, thereby effectively realizing the main plate 1 and the auxiliary plate 2 from a 0° folded state to a 180° unfolding state; when folded at 0°, the relative positions of the two can be effectively locked through the locking device 3.

[0054] In some possible implementations, in order to effectively realize the folding and unfolding of the main plate 1 and the auxiliary plate 2 by 0°-180° through the driving device;

[0055] The driving device includes an intermediate rod 42 with one end hinged to the hinge seat 41, and two groups of telescopic driving members 43 hinged to the other end of the intermediate rod 42; the other end of one group of telescopic driving members 43 is hinged to the main plate 1, and the other end of the other group of telescopic driving members 43 is hinged to the auxiliary plate 2.

[0056] In some possible implementations, in order to effectively realize the hinge connection between the main plate 1 and the auxiliary plate 2, and to make the middle rod 42 hinged to the hinge seat 41;

[0057] The two sets of hinge seats 41 are respectively provided with plate rotation hinge points, and the main plate 1 and the auxiliary plate 2 are hinged through the plate rotation hinge points; the intermediate rod 42 is hinged to the two sets of hinge seats 41 through the plate rotation hinge points.

[0058] In some possible implementations, in order to effectively realize the articulation between the intermediate rod 42 and the two sets of telescopic driving members 43;

[0059] The middle rod 42 is provided with a rod hinge point at one end away from the plate rotation hinge point; the two groups of telescopic driving members 43 are respectively hinged to the middle rod 42 through the rod hinge point.

[0060] In some possible implementations, in order to effectively realize the articulation of the two sets of telescopic driving members 43 with the main plate 1 and the auxiliary plate 2 respectively;

[0061] The main plate 1 is provided with a main driving member articulated seat 11 articulated with a group of telescopic driving members 43, and the auxiliary plate 2 is provided with an auxiliary driving member articulated seat 21 articulated with another group of telescopic driving members 43;

[0062] The main driving member articulated seat 11 and the auxiliary driving member articulated seat 21 are at equal distances from the plate rotation hinge point, so that the two sets of telescopic driving members 43 have the same telescopic length, so that the main plate 1 and the auxiliary plate 2 can reach a 180° unfolded state; when the main plate 1 and the auxiliary plate 2 are in a 0° folded state, the line connecting the hinge point of the main driving member articulated seat 11 and the hinge point of the auxiliary driving member articulated seat 21 will be perpendicular to the upper surface of the main plate 1;

[0063] When the main plate 1 and the auxiliary plate 2 are in the 180° unfolded state, the hinge point of the main driving member hinge seat 11 and the hinge point of the auxiliary driving member hinge seat 21 are in the same straight line, thereby ensuring that when the two sets of telescopic driving members 43 are extended to the same length, the main plate 1 and the auxiliary plate 2 can be unfolded to 180°. When the main plate 1 and the auxiliary plate 2 are unfolded to 180°, the middle piece will be vertically arranged and perpendicular to the upper surface of the main plate 1.

[0064] In some possible implementations, the telescopic drive member 43 mainly realizes telescopic movement along its long direction;

[0065] The two groups of telescopic driving members 43 have the same structure and are hydraulic cylinders. When hydraulic cylinders are used, a set of hydraulic control is used to drive the two groups of telescopic driving members 43, thereby effectively ensuring the synchronous movement of the two groups of telescopic driving members 43.

[0066] In some possible implementations,

[0067] When the main plate 1 and the auxiliary plate 2 are folded at 0°, a gap a is formed between the main plate 1 and the auxiliary plate 2 on one side close to each other, and an angle b is formed by the two sets of telescopic driving members 43 along their long directions;

[0068] Where, a>3D, D is the outer diameter of the hydraulic cylinder; b≥40°;

[0069] When the main plate 1 and the auxiliary plate 2 are unfolded at 180°, the angle formed by the two sets of telescopic driving members 43 along their long directions is c, 90°<c≤140°, and further c=2b, which will effectively ensure the working efficiency of the telescopic driving member 43 when driving when folding;

[0070] In the present invention, by effectively limiting the angle formed by the two sets of telescopic driving members 43 in different states (0° folded state and 180° unfolded state), the length of the intermediate rod 42 is limited, ensuring that when the main plate 1 and the secondary plate 2 are unfolded at 180°, the length of the intermediate rod 42 will not cause excessive obstruction to the functional parts installed on the main plate 1 and the secondary plate 2, causing unnecessary trouble for normal use in the later stage;

[0071] In some possible implementations,

[0072] The locking device 3 includes a locking rod 31 installed on the outer side of the auxiliary plate 2 and perpendicular to the auxiliary plate 2, and a locking seat 32 arranged corresponding to the locking rod 31 and installed on the outer side of the main plate 1; the locking seat 32 includes a hydraulic locking pin 321 provided with a locking rod 31 for locking, and a locking seat provided with a pin hole and installed on the side of the main plate; the hydraulic locking pin 321 is inserted into the pin hole and moves along the axial direction of the pin hole.

[0073] The hydraulic locking pin 321 includes a hydraulic cylinder, a locking pin connected to the output end of the hydraulic cylinder and sleeved in the pin hole, and a slot connected to the pin hole is provided on the locking seat; the hydraulic cylinder is used to control the locking pin to move along its long direction to move toward or away from the slot.

[0074] By providing the locking device 3, it is effectively ensured that when the main plate 1 and the auxiliary plate 2 are in the 0° folded state, the main plate 1 and the auxiliary plate 2 can be locked with each other to form a whole, thereby effectively enhancing the vibration resistance in the 0° folded state;

[0075] Preferably, the locking seat 32 is provided with a pin hole for the hydraulic locking pin 321 to move, and the locking rod 31 is provided with a through hole that matches the pin hole. When in use, the locking rod 31 moves toward one side of the locking seat 32 and enters the slot. When the 0° folding state is reached, the pin hole and the through hole will be coaxial and connected. At this time, the hydraulic locking pin 321 will pass through the pin hole and the through hole in sequence, thereby realizing the plugging of the locking rod 31 and the hydraulic locking pin 321, so that the two are locked with each other, thereby realizing that the main plate 1 and the auxiliary plate 2 form a whole;

[0076] In some possible implementations, in order to make the main flat panel 1 and the auxiliary flat panel 2 more stable when being unfolded or folded;

[0077] The driving mechanisms 4 are in two groups and are symmetrically arranged. The locking devices 3 are in two groups and are arranged on the same side as the two groups of driving mechanisms 4 respectively.

[0078] like Figure 1-Figure 5 As shown, when the main plate 1 and the auxiliary plate 2 are unfolded from the 0° folded state to the 180° unfolded state,

[0079] First, the two sets of telescopic driving members 43 will extend synchronously, wherein the telescopic driving member 43 hinged to the main plate 1 will push the intermediate rod 42 to rotate counterclockwise around the plate rotation hinge point between it and the hinge seat 41, and the telescopic driving member 43 hinged to the auxiliary plate 2 will push the auxiliary plate 2 to rotate counterclockwise around the plate rotation hinge point. Under the synchronous drive of the two sets of telescopic driving members 43, the main plate 1 and the auxiliary plate 2 will be unfolded from the initial state of 0° to 180°; when unfolded to the full extent, in the 0° state, the main plate 1 and the auxiliary plate 2 will be on the same plane on one side close to each other, and as shown in FIG. Figure 1As shown, the left side wall of the main plate 1 and the left side wall of the auxiliary plate 2 will abut against each other, and under the limiting effect of the contact force, the mechanism stops moving, and the entire mechanism reaches a force balance state, thereby realizing the deployment of the entire mechanism.

[0080] On the contrary, when folding from the 180° unfolded state to the 0° folded state, first, the two groups of telescopic driving members 43 will shrink synchronously, among which the telescopic driving member 43 hinged to the main plate 1 will push the middle rod 42 to rotate clockwise around the plate rotation hinge point between it and the hinge seat 41, and the telescopic driving member 43 hinged to the auxiliary plate 2 will push the auxiliary plate 2 to rotate clockwise around the plate rotation hinge point. Under the synchronous drive of the two groups of telescopic driving members 43, the main plate 1 and the auxiliary plate 2 will be folded from the initial state of 180° to 0°; when folded into place, the locking rod 31 provided on the auxiliary main board will cooperate with the hydraulic locking pin 321 on the locking seat 32 corresponding to the main plate 1 to achieve locking, thereby ensuring that the relative position of the main plate 1 and the auxiliary plate 2 does not change, making the 0° folded state more stable, and the main and auxiliary plates 2 are locked as a whole, thereby improving the vibration resistance of the entire mechanism during transportation.

[0081] Furthermore, in order to effectively ensure that the main plate 1 and the auxiliary plate 2 can be reliably connected to form a stable whole when they are unfolded at 180°, as shown in FIG. Figure 2-Figure 5 As shown, a supporting plug-in is provided on the main flat panel 1, and a plug-in block is provided on the secondary flat panel 2 which is plugged into the supporting plug-in when unfolded 180°. After the two are plugged in, the supporting plug-in is connected to the main flat panel 1, so that the main flat panel 1 and the secondary flat panel 2 are effectively supported and connected.

[0082] The present invention has a locking design when in the folded state and has a position limit when unfolded to the 180° position, so in both the folded and unfolded states, the overall state is stable and the mechanism strength is high, so when it is used as a load-bearing platform, its load-bearing capacity is high;

[0083] Furthermore, in the present invention, the aspect ratios of the main plate 1 and the auxiliary plate 2 are both greater than 4, and the formed mechanism as a whole can work stably in any state between horizontal and vertical under the action of the external mounting point at the bottom of the main plate 1.

[0084] By adopting the present invention, after the main plate 1 and the auxiliary plate 2 are unfolded, the upper surface of the main plate 1 is flush with the upper surface of the auxiliary plate 2 after unfolding, and there is no height difference between the upper surfaces of the two plates, which is conducive to the grouped use and arrangement of functional components. At the same time, because the two plates are flush, the overall aesthetics is good.

[0085] The present invention arranges the driving mechanism 4 and the locking device 3 on two symmetrical outer sides of the main plate 1 and the auxiliary plate 2, which will not affect the installation and use of the functional parts on the main plate 1 and the auxiliary plate 2;

[0086] In the process of pushing the auxiliary plate to expand at a large angle of 2180°, the telescopic driving member 43 of the present invention has a thrust angle greater than 20° at any position, and the telescopic driving member 43 has high execution efficiency, thereby reducing the thrust required by the telescopic driving member 43, which is conducive to the selection of the telescopic driving member 43 and has good economy.

[0087] on the other hand:

[0088] A method for realizing a folding and unfolding mechanism of a double ultra-wide thin flat plate,

[0089] When unfolding, the locking device 3 is first unlocked; then the two sets of telescopic driving members 43 are synchronously extended, and the telescopic driving member 43 hinged to the main plate 1 drives the intermediate rod 42 to rotate around the plate rotation hinge point to the side away from the main plate 1, and at the same time, the telescopic driving member 43 hinged to the auxiliary plate 2 drives the auxiliary plate 2 to rotate to the side away from the main plate 1, until the main plate 1 and the auxiliary plate 2 are in a 180° unfolded state and the side walls of the two are in contact, and the unfolding is completed;

[0090] When folding, the two sets of telescopic driving members 43 are shortened synchronously, and the telescopic driving member 43 hinged to the main plate 1 will drive the intermediate rod 42 to rotate around the plate rotation hinge point toward the side close to the main plate 1. At the same time, the telescopic driving member 43 hinged to the auxiliary plate 2 will drive the auxiliary plate 2 to rotate toward the side of the hinged main plate 1 until the locking rod 31 is perpendicular to the main plate 1. Then the locking rod 31 is locked with the locking seat 32, completing the 0° folding and ensuring that the relative positions of the main plate 1 and the auxiliary plate 2 will not change when in the 0° folded state, forming a stable whole.

[0091] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A folding and unfolding mechanism for double ultra-wide thin flat panels, characterized in that: It includes a main plate, a secondary plate hinged to the main platform, a locking device for locking the main plate and the secondary plate after folding, and a driving mechanism with two ends respectively hinged to the main plate and the secondary plate; The driving mechanism comprises hinged seats respectively arranged on the outside of the main plate and the auxiliary plate and hinged to each other, and a driving device having one end hinged to the hinged seat; the other end of the driving device is respectively hinged to the outside of the main plate and the auxiliary plate; The driving device comprises an intermediate rod hinged to the hinge seat at one end and two sets of telescopic driving members hinged to the other end of the intermediate rod; the other end of one set of telescopic driving members is hinged to the main plate, and the other end of the other set of telescopic driving members is hinged to the auxiliary plate; When the main plate and the auxiliary plate are folded at 0°, a gap a is formed between the main plate and the auxiliary plate on one side close to each other, and an angle b is formed by the two sets of telescopic driving members along their long directions; Where, a>3D, D is the outer diameter of the hydraulic cylinder; b≥40°; When the main plate and the auxiliary plate are deployed at 180°, the angle formed by the two sets of telescopic driving members along their long directions is c, 90°<c≤140° and c=2b.

2. The folding and unfolding mechanism of a double ultra-wide thin flat panel according to claim 1, characterized in that: The two groups of hinge seats are respectively provided with plate rotation hinge points, and the main plate and the auxiliary plate are hinged through the plate rotation hinge points; the intermediate rod is hinged with the two groups of hinge seats through the plate rotation hinge points.

3. The folding and unfolding mechanism of a double ultra-wide thin flat panel according to claim 1, characterized in that: A rod hinge point is arranged at one end of the middle rod away from the plate rotation hinge point; the two groups of telescopic driving members are respectively hinged to the middle rod through the rod hinge point.

4. The folding and unfolding mechanism of a double ultra-wide thin flat panel according to claim 1, characterized in that: The main plate is provided with a main driving member articulated seat articulated with a group of telescopic driving members, and the auxiliary plate is provided with an auxiliary driving member articulated with another group of telescopic driving members; The main driving member hinge seat and the auxiliary driving member hinge seat are at an equal distance from the plate rotation hinge point; When the main plate and the auxiliary plate are unfolded at 180 degrees, the hinge point of the main driving member hinge seat and the hinge point of the auxiliary driving member hinge seat are on the same straight line.

5. The folding and unfolding mechanism of a double ultra-wide thin flat panel according to claim 1, characterized in that: The two sets of telescopic driving parts have the same structure and are hydraulic cylinders.

6. The folding and unfolding mechanism of a double ultra-wide thin flat panel according to claim 1, characterized in that: The locking device comprises a locking rod installed on the outer side of the auxiliary plate, and a locking seat arranged corresponding to the locking rod and installed on the outer side of the main plate; the locking seat is provided with a hydraulic locking pin that cooperates with the locking rod to lock.

7. A folding and unfolding mechanism for double ultra-wide thin flat panels according to any one of claims 1 to 6, characterized in that: The driving mechanisms are in two groups and are symmetrically arranged. The locking devices are in two groups and are arranged on the same side as the two groups of driving mechanisms respectively.

8. A method for implementing the folding and unfolding mechanism of a double ultra-wide thin flat panel according to any one of claims 1 to 7, characterized in that: When unfolding, the locking device is first unlocked; then the two sets of telescopic driving members extend synchronously, and the telescopic driving member hinged to the main plate drives the intermediate rod to rotate around the plate rotation hinge point to the side away from the main plate, and at the same time, the telescopic driving member hinged to the auxiliary plate drives the auxiliary plate to rotate to the side away from the main plate, until the main plate and the auxiliary plate are in a 180° unfolded state and the side walls of the two are in contact, and the unfolding is completed; When folding, the two sets of telescopic driving parts are shortened synchronously. The telescopic driving part hinged to the main plate will drive the middle rod to rotate around the plate rotation hinge point toward the side close to the main plate. At the same time, the telescopic driving part hinged to the auxiliary plate will drive the auxiliary plate to rotate toward the side of the hinged main plate until the locking rod is perpendicular to the main plate. The locking rod is then locked with the locking seat to complete the 0° folding.

Images