A multi-directional synchronous tensioning and locking system

Abstract

The application discloses a multi-directional synchronous tensioning and locking system, comprising a multi-edge linkage locking mechanism and a flat-pressing hinge mechanism; the multi-edge linkage locking mechanism comprises an operation part and a plurality of connecting rods; two adjacent connecting rods are in transmission connection; the operation part is in transmission connection with at least one connecting rod; a plurality of locking points are further included and are rotationally arranged on the connecting rods; when locking, the operation part drives the connecting rods to move synchronously, thereby driving the locking points to synchronously lock the corresponding door frame edges; the flat-pressing hinge mechanism is connected between a door plate and a door frame and comprises two supports and two connecting rods; the middle parts of the two connecting rods are hingedly connected, thereby forming an X-shaped adjusting support with an adjustable rotation angle; in the door opening state, the two supports are indirectly connected through the X-shaped adjusting support and keep a distance apart. Through the cooperation of the multi-edge linkage locking mechanism and the flat-pressing hinge mechanism, the door plate is synchronously locked and the "first translation and then closing" action is realized, the sealing strip is uniformly stressed and is prevented from being obliquely stressed, and the sealing reliability and service life are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage containers, and in particular to a multi-directional synchronous tensioning and locking system. The locking system can be applied to objects with high sealing requirements such as energy storage containers. Background Art

[0002] Energy storage containers are key infrastructure in the new energy sector. The sealing and reliability of their door systems directly affect the safe operation of internal power equipment. Currently, common energy storage container door systems on the market have the following technical defects:

[0003] 1. Insufficient synchronization of multilateral locking

[0004] Although traditional energy storage container doors utilize a multi-sided locking mechanism, mechanical limitations prevent the doors from achieving highly synchronized locking on all sides. This results in the sealing strips on each side of the door frame being stressed sequentially. The first-stressed sealing strips, subjected to prolonged and intense pressure, are susceptible to deformation or damage, compromising overall sealing performance. Furthermore, existing technologies often employ single- or three-sided locking mechanisms with hinges, making it difficult to ensure consistent compression of the sealing strips at all locations, exacerbating the risk of seal failure.

[0005] 2. The hinge structure causes uneven force on the sealing strip

[0006] Traditional hinges rotate around a pin, preventing the sealing strip between the door panel and door frame from being compressed vertically. This can even lead to damage due to tilted forces. This structure results in uncontrollable compression of the sealing strip. Over time, uneven stress at the hinged joint can lead to failure, compromising the overall container seal.

[0007] In summary, there is an urgent need for an energy storage container door system that can achieve multilateral synchronous locking and uniform sealing force to solve the problems of sealing failure and insufficient structural durability in the existing technology. Summary of the Invention

[0008] The purpose of the present invention is to provide a multi-directional synchronous tensioning and locking system.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] A multi-directional synchronous tensioning and locking system, comprising a multilateral linkage locking mechanism and a flat-pressing hinge mechanism;

[0011] The multi-lateral linkage locking mechanism is provided on the door panel and includes an operating portion and a plurality of connecting rods; the connecting rods are respectively provided corresponding to each side of the door frame to be locked, and two adjacent connecting rods are transmission-connected; the operating portion is transmission-connected to at least one of the connecting rods;

[0012] Further comprising a plurality of locking points, which are rotatably arranged on the connecting rods;

[0013] In the locked state, the operation part drives the connecting rods to move synchronously, and the synchronous movement of the connecting rods drives the locking points to move synchronously, so that the multi-edge linkage tensioning mechanism enters the locked state; in the locked state, each locking point locks the corresponding door frame edge;

[0014] The flat-press type hinge mechanism is arranged between the door panel and the door frame to be locked, and at least one set is provided, each set comprising two supports and two connecting rods;

[0015] One of the two supports is fixedly arranged on the door panel, and the other is fixedly arranged on the door frame;

[0016] The middle parts of the two connecting rods are hingedly connected, so that the two connecting rods form an X-shaped adjusting frame with an adjustable rotation angle;

[0017] The X-shaped adjusting frame is connected between the two supports, and in the open door state, the two supports are indirectly connected through the X-shaped adjusting frame and maintain a distance.

[0018] In a further technical solution, the door frame is rectangular, and the connecting rods are arranged corresponding to the upper, lower, left and right edges of the door panel, and at least one connecting rod is arranged on each edge.

[0019] In a further technical solution, at least one locking point is arranged on each connecting rod; in the locked state, the length direction of the locking tongue of each locking point is perpendicular to the length direction of the connected connecting rod.

[0020] In a further technical solution, the locking point comprises a lock seat, a locking tongue and a rotating rod;

[0021] The lock seat is fixed relative to the door panel, and the locking tongue is rotatably arranged in the lock seat; the first end of the rotating rod is coaxially fixed with the locking tongue, and the second end is rotatably connected to a pull rod, which is fixedly arranged on the connecting rod.

[0022] In a further technical solution, the locking point comprises a first locking point and a second locking point, the first locking point is arranged on the vertical connecting rod on the left and right sides of the door panel, and the second locking point is arranged on the horizontal connecting rod on the upper and lower sides of the door panel.

[0023] In a further technical solution, the adjacent two connecting rods at the corner of the door panel are connected through a transmission member;

[0024] The transmission member has non-collinear A point, B point and C point; wherein the transmission member is positioned on the door panel through the A point, is rotationally connected with the vertical connecting rod through the B point, and is rotationally connected with the horizontal connecting rod through the C point; and the line connecting the A point and the B point is parallel to the center line of the length direction of the rotating rod of the first locking point; and the line connecting the A point and the C point is parallel to the center line of the length direction of the rotating rod of the second locking point.

[0025] Further technical solutions, the operation part is rotationally connected with the vertical connecting rod through a rotating rod; the center line of the length direction of the rotating rod of the operation part is parallel to the line connecting the A point and the B point.

[0026] When locked, the operator drives the vertical connecting rod to rotate first and then to move up and down by rotating the handle of the operation part (the rotating shaft part of the handle is fixedly connected with the rotating rod of the operation part), so that the horizontal connecting rod is also driven to rotate first and then to move left and right. When the vertical connecting rods and the horizontal connecting rods act synchronously, the locking latches of the locking points also rotate synchronously, so that the edges are synchronously locked. When unlocked, the operator only needs to rotate the handle of the operation part in the reverse direction to drive the locking points to rotate reversely and synchronously, and the specific process is the same as that of the locking process, so it is not described herein.

[0027] Further technical solutions, the lock of each locking point is a tension lock, which can realize more sealing tension locking and distance adjustment (height adjustment), and is convenient for realizing equidistance control of the locking points of the system, so as to ensure that the compression amounts of the sealing strips of the edges of the door frame are consistent. Since the specific structure of the tension lock is prior art, the present case is not described herein.

[0028] Further technical solutions, the profile interface of the connecting rod is in a U shape.

[0029] Further technical solutions, the first support of the two supports is fixedly arranged on the inner side of the door panel, and the second support is fixedly arranged on the door frame and is arranged in correspondence with the first support.

[0030] Further technical solutions, one end of the first connecting rod of the two connecting rods is hingedly connected with one end of the first support, and the other end is slidingly connected with the second support along the length direction of the second support; one end of the second connecting rod is hingedly connected with one end of the second support, and the other end is slidingly connected with the first support along the length direction of the first support.

[0031] Further technical solutions, the first support is provided with a first long hole along the length direction thereof, and the other end of the second connecting rod is slidingly connected with the first long hole; the second support is provided with a second long hole along the length direction thereof, and the other end of the first connecting rod is slidingly connected with the second long hole.

[0032] Further, the two supports are right-angle profiles, each having a horizontal surface and a vertical surface, wherein the horizontal surface is provided with the first long hole or the second long hole, and the vertical surface is a fixing surface of the door panel or the door frame.

[0033] Further, the second connecting rod is shorter than the first connecting rod, and the first connecting rod is provided with a limiting slot corresponding to the other end of the second connecting rod.

[0034] In the closed state, the other end of the second connecting rod is located in the limiting slot.

[0035] As used herein, "first", "second", and the like, do not particularly denote an order or sequence, and are not used to limit the present application, but are merely used to distinguish components or operations described by the same technical terms.

[0036] As used herein, "connected" or "positioned" can mean that two or more components or devices are directly or indirectly connected or positioned, and can also mean that two or more components or devices are in operation or action with each other.

[0037] As used herein, "comprising", "including", "having", and the like, are open terms, meaning "including but not limited to".

[0038] As used herein, the terms have their ordinary meanings in the field of the application, unless otherwise indicated. Certain terms used herein will be discussed below or elsewhere in the specification, to provide additional guidance to those skilled in the art regarding the description of the present application.

[0039] As used herein, "front", "back", "up", "down", "left", "right", and the like, are directional terms, and are used in the present application only to describe the positional relationship between structures, and are not used to limit the scope of protection and the specific direction of actual implementation.

[0040] The working principle and advantages of the present application are as follows:

[0041] First, the present invention utilizes an innovative multilateral linkage locking mechanism design and a transmission-connected linkage system to achieve a "one-rod drive, multiple-rod synchronization" locking effect. This allows the door panel and door frame to be precisely locked simultaneously and equidistantly on all sides, and in conjunction with high-performance sealing strips, forms a completely sealed structure. Its unique synchronized locking mechanism evenly applies force to the sealing strips on all sides of the door frame, avoiding localized damage to the sealing strips caused by uneven force in traditional technologies and significantly extending the service life of the sealing system. The innovative multilateral equidistant tensioning linkage design is highly adjustable and can precisely control the compression of the sealing strips, resolving the problem of inconsistent compression on all sides of the sealing strips in traditional technologies. Furthermore, a flat-pressure angle-limited hinge replaces the traditional rotating pin structure to achieve vertical positive pressure on the sealing strips, preventing damage caused by oblique force. The coordinated locking mechanism ensures uniform pressure release. The overall design simplifies the operation process, allowing for multi-sided synchronized locking with a single operation point. The rational structure, simple maintenance, and stable and reliable operation make it suitable for a variety of harsh environments, providing a more reliable and durable sealing solution for energy storage container door systems.

[0042] 2. The present invention provides an innovative flat-pressure angle-limited hinge, which realizes the "first translation, then closing" door closing action through the unique X-shaped adjustment frame design, effectively solving the problem of tilting or damage caused by traditional hinges pressing the sealing strip. The design uses two hinged connecting rods to form an X-shaped structure with adjustable rotation angle. When switching from the open state to the closed state, the initial distance between the door panel and the door frame hinge is maintained by the X-shaped adjustment frame to ensure that the sealing strip is not compressed prematurely; during the door closing process, the translation action is completed first and then the final closure is achieved, so that the pressure can be slowly and evenly released to the sealing strips on all sides of the door frame, avoiding the defect of traditional hinges applying concentrated pressure to the sealing strips at the initial closing stage. This innovative hinge structure not only protects the sealing strip from damage caused by tilting force, but also significantly extends the service life of the sealing strip at the hinge, thereby ensuring the overall sealing performance of the energy storage container door system under long-term operation and solving the problem of sealing failure caused by traditional hinge design.

[0043] 3. The present invention, through the coordinated cooperation of a multilateral locking mechanism and a flat-press hinge mechanism, can ensure that the system is less susceptible to premature damage due to shortened lifespan of localized sealing strips after long-term operation. The multilateral locking mechanism ensures that all sides of the door panel are locked synchronously, so that the sealing strip is evenly stressed; the flat-press hinge mechanism, through the unique action of "first translating, then closing," prevents the sealing strip from being tilted or subjected to concentrated pressure during the closing process. Compared to traditional solutions, this coordinated design of the present invention not only improves the sealing performance of each side due to the uniform force, but also ensures the reliability of the seal during long-term use. The organic combination of these two innovative mechanisms not only solves the problems of uneven force and inconsistent compression on the sealing strip in traditional technologies, but also achieves the long-term stability and reliability of the sealing system, allowing the door panel to automatically adjust its position during the closing process, ensuring that the sealing strip is always in the optimal pressure state. This coordinated design significantly improves the overall performance and service life of the system, providing a safer and more reliable sealing solution for energy storage containers, and thus has outstanding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Attachment Figure 1 This is a schematic structural diagram of an embodiment of the present invention when the door panel is open;

[0045] Attachment Figure 2 This is a schematic diagram of a locked state when the door panel is closed according to an embodiment of the present invention;

[0046] Attachment Figure 3 This is a schematic structural diagram of a multilateral linkage locking mechanism according to an embodiment of the present invention;

[0047] Attachment Figure 4 Schematic diagram of the locked state of the multilateral linkage locking mechanism according to an embodiment of the present invention;

[0048] Attachment Figure 5 for Figure 4 The enlarged view of point Ⅰ in the middle;

[0049] Attachment Figure 6 for Figure 4 Enlarged view of the middle II;

[0050] Attachment Figure 7 A three-dimensional diagram of a multilateral linkage locking mechanism according to an embodiment of the present invention;

[0051] Attachment Figure 8 This is an exploded view of the multilateral linkage locking mechanism according to an embodiment of the present invention;

[0052] Attachment Figure 9 Schematic diagram of the unlocking or locking process of the multilateral linkage locking mechanism according to an embodiment of the present invention;

[0053] Attachment Figure 10 for Figure 9 Enlarged view of point III in the middle;

[0054] Attachment Figure 11 Schematic diagram of the unlocked state of the multilateral linkage locking mechanism according to an embodiment of the present invention;

[0055] Attachment Figure 12 for Figure 11 Enlarged view of position IV in the middle;

[0056] Attachment Figure 13 Schematic diagram of a transmission member in a multilateral linkage locking mechanism according to an embodiment of the present invention;

[0057] Attachment Figure 14 Schematic diagram of the changes of the transmission parts in the multilateral linkage locking mechanism of the embodiment of the present invention Figure 1 ;

[0058] Attachment Figure 15 Schematic diagram of the changes of the transmission parts in the multilateral linkage locking mechanism of the embodiment of the present invention Figure 2 ;

[0059] Attachment Figure 16 According to the embodiment of the present invention Figure 14 The variation scheme shown by the transmission parts;

[0060] Attachment Figure 17 Schematic diagram of a six-locking point solution of a multilateral linkage locking mechanism according to an embodiment of the present invention;

[0061] Attachment Figure 18 Schematic diagram of the open state of the flat-press hinge mechanism according to an embodiment of the present invention;

[0062] Attachment Figure 19 Schematic diagram of the flat-press hinge mechanism during opening or closing according to an embodiment of the present invention;

[0063] Attachment Figure 20 Schematic diagram of the closed state of the flat-press hinge mechanism according to an embodiment of the present invention;

[0064] Attachment Figure 21 This is an exploded view of the flat-pressing hinge mechanism according to an embodiment of the present invention;

[0065] Attachment Figure 22 This is a front view of a door panel closed according to an embodiment of the present invention;

[0066] Attachment Figure 23 for Figure 22 A top view of

[0067] Attachment Figure 24 This is a top view of the door panel of the embodiment of the present invention when it is slightly open;

[0068] Attachment Figure 25 for Figure 24 Enlarged view of the V in the middle;

[0069] Attachment Figure 26This is a front view of a door panel during opening or closing according to an embodiment of the present invention;

[0070] Attachment Figure 27 for Figure 26 A top view of

[0071] Attachment Figure 28 This is a front view of an embodiment of the present invention with the door panel opened;

[0072] Attachment Figure 29 for Figure 28 Top view of .

[0073] In the above figures: 1. Door panel; 2. Door frame; 3. Sealing strip;

[0074] 10. Operating unit; 11. Connecting rod; 11a. Vertical connecting rod; 11b. Horizontal connecting rod; 12. Locking point; 121. Lock tongue; 122. Lock seat; 123. Rotating lever; 124. Pull rod; 12a. First locking point; 12b. Second locking point; 13. Transmission member;

[0075] 21. Bracket; 21a. First bracket; 21b. Second bracket; 22. Connecting rod; 22a. First connecting rod; 22b. Second connecting rod; 211a. First slot; 211b. Second slot; 212. Horizontal surface; 213. Vertical surface; 25. Limiting groove. DETAILED DESCRIPTION

[0076] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0077] Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0078] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.

[0079] See attached Figure 1 、 2 As shown, a multi-directional synchronous tension locking system includes a multilateral linkage locking mechanism and a flat-press hinge mechanism. The multilateral linkage locking mechanism is provided on the door panel 1, and the flat-press hinge mechanism is connected between the door panel 1 and the door frame 2 to be locked.

[0080] like Figures 3 to 12As shown, the multilateral linkage locking mechanism includes an operating part 10 and multiple connecting rods 11; the connecting rods 11 are respectively arranged corresponding to each side of the door frame 2 to be locked, and two adjacent connecting rods 11 are transmission connected; the operating part 10 is transmission connected to one of the connecting rods 11.

[0081] It also includes a plurality of locking points 12, which are rotatably arranged on the connecting rod 11. Figures 1 to 3 For a ten-locking-point solution, Figures 4 to 12 A twelve-point locking scheme.

[0082] When locking, the operating part 10 drives each of the connecting rods 11 to move synchronously, and the synchronous movement of each of the connecting rods 11 drives the locking points 12 to move synchronously, so that the multilateral linkage tensioning mechanism enters a locked state; in the locked state, each of the locking points 12 locks its corresponding door frame edge.

[0083] In this embodiment, the door panel 1 and the door frame 2 are both rectangular, and the connecting rods 11 are respectively provided corresponding to the upper, lower, left and right sides of the door panel 1, and at least one connecting rod 11 is provided on each side.

[0084] Preferably, each connecting rod 11 is connected to at least one locking point 12; in the locked state, the length direction of the lock tongue 121 of each locking point 12 is perpendicular to the length direction of the connecting rod 11 and is arranged toward the outside of the door panel 1.

[0085] The locking point 12 includes a locking tongue 121 , a locking seat 122 and a rotating rod 123 .

[0086] The lock seat 12 is fixed relative to the door panel 1, and the lock tongue 121 is rotatably set in the lock seat 122; the first end of the rotating rod 123 is coaxially fixed with the lock tongue 121, and the second end is rotatably connected to a pull rod 124, which is fixed to the connecting rod 11.

[0087] The locking points include a first locking point 12a and a second locking point 12b. The first locking point 12a is connected to the vertical connecting rods 11a on the left and right sides of the door panel 1, and the second locking point 12b is connected to the horizontal connecting rods 11b on the upper and lower sides of the door panel 1.

[0088] In this embodiment, two adjacent connecting rods 11 at the corners of the corresponding door panel 1 are connected through a transmission member 13 .

[0089] The transmission member 13 has non-collinear points A, B and C; wherein, the transmission member 13 is rotationally positioned on the door panel 1 through point A, is rotationally connected to the vertical connecting rod 11a through point B, and is rotationally connected to the horizontal connecting rod 11b through point C; and, the line connecting point A and point B is parallel to the center line of the length direction of the rotating rod 123 of the first locking point 12a; the line connecting point A and point C is parallel to the center line of the length direction of the rotating rod 123 of the second locking point 12b.

[0090] Preferably, the operating portion 10 is connected to the vertical connecting rod 11a via a rotating rod 123; the center line of the rotating rod 123 in the longitudinal direction of the operating portion 10 is parallel to the line connecting point A and point B.

[0091] like Figures 14 to 16 As shown, the transmission member 13 may also include other structural forms. From the perspective of structural strength, it is preferred Figure 13 triangle.

[0092] To lock, the operator rotates the handle 101 of the operating unit 10 (the shaft portion of the handle 101 is fixedly connected to the rotating rod 123 of the operating unit 10), driving the vertical connecting rod 11a to rotate first and then translate up and down. Since the horizontal connecting rod 11b is connected to the vertical connecting rod 11a via the transmission member 13, the horizontal connecting rod 11b is also driven to rotate first and then translate left and right. When each vertical connecting rod 11a and each horizontal connecting rod 11b move synchronously, the lock tongue 121 of each locking point 12 also rotates synchronously, thereby achieving synchronous locking of each side. To unlock, simply rotate the handle 101 of the operating unit 10 in the opposite direction to drive each locking point 12 to rotate synchronously in the opposite direction. The specific process is the same as the locking process, so it will not be repeated here.

[0093] Preferably, the locks at each locking point 12 are tension locks, which can achieve a more airtight tension lock and also enable adjustable tension height, solving the problem of inconsistent compression of the sealing strips on each side. Since the specific structure of the tension lock is prior art, it will not be described in detail in this case.

[0094] Preferably, the profile interface of the connecting rod 11 is U-shaped.

[0095] Figure 17 Another application form of this embodiment is shown, that is, the vertical connecting rod 11a on one side is omitted and the number of locking points 12 is set to six.

[0096] like Figures 18-29 As shown, there is at least one set of flat-press hinge mechanisms, and each set includes two brackets 21 and two connecting rods 22 .

[0097] One of the two brackets 21 is fixed on the door panel 1 , and the other is fixed on the door frame 2 .

[0098] The two connecting rods 22 are hingedly connected in the middle, so that the two connecting rods 22 form an X-shaped adjusting frame with an adjustable rotation angle.

[0099] The X-shaped adjusting frame is connected between the two supports 21, and in the open door state, the two supports 21 are indirectly connected and kept a distance apart through the X-shaped adjusting frame.

[0100] In this embodiment, the first support 21a of the two supports 21 is fixedly arranged on the inner side of the door panel 1, and the second support 21b is fixedly arranged on the door frame 2 and corresponds to the first support 21a.

[0101] The first connecting rod 22a of the two connecting rods 22 is hingedly connected to one end of the first support 21a, and the other end is slidingly connected to the second support 21b along the length direction of the second support 21b; the second connecting rod 22b is hingedly connected to one end of the second support 21b, and the other end is slidingly connected to the first support 21a along the length direction of the first support 21a.

[0102] Preferably, the first support 21a is provided with a first long hole 211a along the length direction thereof, and the other end of the second connecting rod 22b is slidingly connected to the first long hole 211a; the second support 21b is provided with a second long hole 211b along the length direction thereof, and the other end of the first connecting rod 22a is slidingly connected to the second long hole 211b.

[0103] Preferably, the two supports 21 are both right-angled profiles, which have a horizontal surface 212 and a vertical surface 213, wherein the horizontal surface 212 is provided with the first long hole 211a or the second long hole 211b, and the vertical surface 213 is a fixed surface of the door panel 1 or the door frame 2.

[0104] Preferably, the length of the second connecting rod 22b is less than that of the first connecting rod 22a, and the first connecting rod 22a is provided with a limiting groove 25 corresponding to the other end of the second connecting rod 22b; in the closed door state, the other end of the second connecting rod 22b is located in the limiting groove 25.

[0105] The flat pressing type hinge mechanism of the present application adopts the structure design of two connecting rods hingedly connected to form an X-shaped adjusting frame. The two ends of the two connecting rods are respectively slidingly and hingedly connected to the two supports. When the system switches from the open door state to the closed door state, the X-shaped adjusting frame first maintains the initial distance between the two supports, so that the hinge joint between the door panel and the door frame maintains a proper distance; then through the rotation angle adjustment function of the X-shaped adjusting frame, the door panel is smoothly moved to approach the door frame to complete the closing action, realizing the "first translation, then closing" door closing process.

[0106] During the initial closing phase, an X-shaped adjustment bracket maintains the initial spacing between the door panel and the door frame, preventing premature compression of the sealing strip. Later in the closing phase, the bracket's precise guidance ensures that the door panel is pressed steadily against the door frame. This phased closing method ensures that the sealing strip at the junction of the door panel and the door frame is evenly stressed, avoiding the tilting or concentrated pressure caused by traditional hinges. This effectively protects the sealing strip and ensures that the system maintains the required high sealing performance over long-term operation.

[0107] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A multi-directional synchronous tensioning and locking system, characterized by: Including a multilateral linkage locking mechanism and a flat-press hinge mechanism; The multi-lateral linkage locking mechanism is provided on the door panel and includes an operating portion and a plurality of connecting rods; the connecting rods are respectively provided corresponding to each side of the door frame to be locked, and two adjacent connecting rods are transmission-connected; the operating portion is transmission-connected to at least one of the connecting rods; It also includes a plurality of locking points, wherein the locking points are rotatably arranged on the connecting rod; When locking, the operating part drives each of the connecting rods to move synchronously, and the synchronous movement of each connecting rod drives the locking points to synchronously lock the corresponding door frame edges; The flat-press hinge mechanism is connected between the door panel and the door frame to be locked, and is provided with at least one set, each set including two brackets and two connecting rods; One of the two brackets is fixed on the door panel, and the other is fixed on the door frame; The middle parts of the two connecting rods are hinged, so that the two connecting rods form an X-shaped adjustment frame with adjustable rotation angle; The X-shaped adjustment frame is connected between the two brackets, and when the door is open, the two brackets are indirectly connected through the X-shaped adjustment frame and maintain a distance; The first of the two brackets is fixed on the inner side of the door panel, and the second bracket is fixed on the door frame and is arranged corresponding to the first bracket; One end of the first connecting rod of the two connecting rods is hinged to one end of the first bracket, and the other end is slidably connected to the second bracket along the length direction of the second bracket; one end of the second connecting rod is hinged to one end of the second bracket, and the other end is slidably connected to the first bracket along the length direction of the first bracket; The length of the second connecting rod is smaller than that of the first connecting rod, and a limiting groove is formed at the other end of the first connecting rod corresponding to the second connecting rod; In the door closing state, the other end of the second connecting rod is located in the limiting groove.

2. The multi-directional synchronous tensioning and locking system according to claim 1, characterized in that: The door frame is rectangular, and the connecting rods are respectively arranged corresponding to the upper, lower, left and right sides of the door panel, and at least one connecting rod is arranged on each side.

3. The multi-directional synchronous tensioning and locking system according to claim 1, characterized in that: At least one locking point is connected to each connecting rod; in a locked state, the length direction of the lock tongue of each locking point is perpendicular to the length direction of the connecting rod.

4. The multi-directional synchronous tensioning and locking system according to claim 1, characterized in that: The locking points include a lock seat, a lock tongue and a rotating rod; The lock seat is fixed relative to the door panel, and the lock tongue is rotatably arranged in the lock seat; the first end of the rotating rod is coaxially fixed with the lock tongue, and the second end is rotatably connected to a pull rod, which is fixed to the connecting rod.

5. The multi-directional synchronous tensioning and locking system according to claim 4, characterized in that: The locking points include a first locking point and a second locking point, wherein the first locking point is connected to the vertical connecting rods on the left and right sides of the door panel, and the second locking point is connected to the horizontal connecting rods on the upper and lower sides of the door panel.

6. The multi-directional synchronous tensioning and locking system according to claim 5, characterized in that: Two adjacent connecting rods at corresponding door panel corners are connected through a transmission member; The transmission member has non-collinear points A, B and C; wherein, the transmission member is rotated and positioned on the door panel through point A, is rotationally connected to the vertical connecting rod through point B, and is rotationally connected to the horizontal connecting rod through point C; and, the line connecting point A and point B is parallel to the center line of the length direction of the rotating rod of the first locking point; the line connecting point A and point C is parallel to the center line of the length direction of the rotating rod of the second locking point.

7. The multi-directional synchronous tensioning and locking system according to claim 6, characterized in that: The operating portion is connected to the vertical connecting rod through a rotating rod; the center line of the rotating rod in the longitudinal direction of the operating portion is parallel to the line connecting point A and point B.

8. The multi-directional synchronous tensioning and locking system according to claim 1, characterized in that: The locks at each locking point are tension locks.

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