Multidirectional synchronous tensioning and locking system

Abstract

The invention discloses a multidirectional synchronous tensioning and locking system. The multidirectional synchronous tensioning and locking system comprises a multilateral linkage locking mechanism and a flat pressing type hinge mechanism. The multilateral linkage locking mechanism comprises an operation part and a plurality of connecting rods; two adjacent connecting rods are in transmission connection; the operating part is in transmission connection with at least one connecting rod; the locking points are rotationally arranged on the connecting rod; during locking, the operation part drives the connecting rods to move synchronously, and therefore the locking points are driven to lock the corresponding door frame edges synchronously. The flat pressing type hinge mechanism is connected between the door plate and the door frame and comprises two supports and two connecting rods. The middle parts of the two connecting rods are hinged to form an X-shaped adjusting frame with an adjustable rotating angle; in the door opening state, the two supports are indirectly connected through the X-shaped adjusting frame and keep a certain distance. Through cooperative cooperation of the multilateral linkage locking mechanism and the flat pressing type hinge mechanism, synchronous locking and'first translation and then closing 'actions of the door plate are achieved, it is ensured that the sealing strips are evenly stressed, inclined pressing is avoided, the sealing reliability is remarkably improved, and the service life is remarkably prolonged.

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: 1. Insufficient synchronization of multilateral locking 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.

[0003] 2. The hinge structure causes uneven force on the sealing strip 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.

[0004] 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

[0005] The purpose of the present invention is to provide a multi-directional synchronous tensioning and locking system.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A multi-directional synchronous tensioning and locking system, comprising a multilateral linkage locking mechanism and a flat-pressing 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 the connecting rods to move synchronously, and the synchronous movement of the connecting rods drives the locking points to act synchronously, so that the multilateral linkage tensioning mechanism enters a locked state; in the locked state, each locking point locks its corresponding door frame edge; 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 in the door open state, the two brackets are indirectly connected through the X-shaped adjustment frame and maintain a distance.

[0007] According to a further technical solution, the door frame is rectangular, 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.

[0008] According to a further technical solution, each connecting rod is connected to at least one locking point; 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.

[0009] According to a further technical solution, the locking point includes 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.

[0010] According to a further technical solution, the locking point includes 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.

[0011] A further technical solution is that two adjacent connecting rods at the corners of the corresponding door panels are connected by 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.

[0012] According to a further technical solution, the operating portion is connected to the vertical connecting rod via a rotating rod; a center line of the rotating rod of the operating portion in the longitudinal direction is parallel to the line connecting point A and point B.

[0013] To lock, the operator rotates the operating handle (the pivot portion of which is fixedly connected to the operating lever), driving the vertical connecting rod to rotate first and then translate up and down. Since the horizontal connecting rod is connected to the vertical connecting rod via the transmission member, the horizontal connecting rod is also driven to rotate first and then translate left and right. When the vertical and horizontal connecting rods move synchronously, the lock tongues at each locking point also rotate synchronously, achieving synchronized locking of each side. To unlock, simply rotate the operating handle in the opposite direction to drive the synchronous rotation of each locking point. The specific process is the same as the locking process, so it will not be repeated here.

[0014] A further technical solution is to use tension locks at each of the aforementioned locking points. This not only provides a more airtight tension lock, but also allows for adjustable distance (height adjustment), facilitating equidistant control of each locking point in the system, thereby ensuring consistent compression of the sealing strip on all sides of the door frame. Since the specific structure of the tension lock is known from the prior art, it will not be described in detail in this application.

[0015] According to a further technical solution, the profile interface of the connecting rod is U-shaped.

[0016] According to a further technical solution, a first bracket of the two brackets is fixed on the inner side of the door panel, and a second bracket is fixed on the door frame and is arranged corresponding to the first bracket.

[0017] A further technical solution is that 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.

[0018] According to a further technical solution, the first bracket is provided with a first long hole along its length direction, and the other end of the second connecting rod is slidingly connected to the first long hole; the second bracket is provided with a second long hole along its length direction, and the other end of the first connecting rod is slidingly connected to the second long hole.

[0019] According to a further technical solution, both brackets are right-angle profiles 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 serves as a fixing surface with the door panel or the door frame.

[0020] According to a further technical solution, the second connecting rod is shorter than the first connecting rod, and a limiting groove is provided 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.

[0021] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.

[0022] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0023] The terms “include”, “including”, “have”, etc. used in this document are open-ended terms, meaning including but not limited to.

[0024] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of this application, and in the specific context. Certain terms used to describe this application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.

[0025] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0026] The working principle and advantages of the present invention are as follows: 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.

[0027] 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.

[0028] 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

[0029] Attachment Figure 1 This is a schematic structural diagram of an embodiment of the present invention when the door panel is open; 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; Attachment Figure 3 This is a schematic structural diagram of a multilateral linkage locking mechanism according to an embodiment of the present invention; Attachment Figure 4 Schematic diagram of the locked state of the multilateral linkage locking mechanism according to an embodiment of the present invention; Attachment Figure 5 for Figure 4 The enlarged view of point Ⅰ in the middle; Attachment Figure 6 for Figure 4 Enlarged view of the middle II; Attachment Figure 7 A three-dimensional diagram of a multilateral linkage locking mechanism according to an embodiment of the present invention; Attachment Figure 8 This is an exploded view of the multilateral linkage locking mechanism according to an embodiment of the present invention; 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; Attachment Figure 10 for Figure 9 Enlarged view of point III in the middle; Attachment Figure 11 Schematic diagram of the unlocked state of the multilateral linkage locking mechanism according to an embodiment of the present invention; Attachment Figure 12 for Figure 11 Enlarged view of position IV in the middle; Attachment Figure 13 Schematic diagram of a transmission member in a multilateral linkage locking mechanism according to an embodiment of the present invention; 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 ; 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 ; Attachment Figure 16 According to the embodiment of the present invention Figure 14 The variation scheme shown by the transmission parts; 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; Attachment Figure 18 Schematic diagram of the open state of the flat-press hinge mechanism according to an embodiment of the present invention; Attachment Figure 19 Schematic diagram of the flat-press hinge mechanism during opening or closing according to an embodiment of the present invention; Attachment Figure 20 Schematic diagram of the closed state of the flat-press hinge mechanism according to an embodiment of the present invention; Attachment Figure 21 This is an exploded view of the flat-pressing hinge mechanism according to an embodiment of the present invention; Attachment Figure 22 This is a front view of a door panel closed according to an embodiment of the present invention; Attachment Figure 23 for Figure 22 A top view of Attachment Figure 24 This is a top view of the door panel slightly opened according to an embodiment of the present invention; Attachment Figure 25 for Figure 24Enlarged view of the V in the middle; Attachment Figure 26 This is a front view of a door panel during opening or closing according to an embodiment of the present invention; Attachment Figure 27 for Figure 26 A top view of Attachment Figure 28 This is a front view of an embodiment of the present invention with the door panel opened; Attachment Figure 29 for Figure 28 Top view of .

[0030] In the above figures: 1. Door panel; 2. Door frame; 3. Sealing strip; 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; 21. Bracket; 21a. First bracket; 21b. Second bracket; 22. Connecting rod; 22a. First connecting rod; 22b. Second connecting rod; 211a. First elongated hole; 211b. Second elongated hole; 212. Horizontal surface; 213. Vertical surface; 25. Limiting groove. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments: 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.

[0032] 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.

[0033] 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.

[0034] like Figures 3 to 12 As 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The locking point 12 includes a locking tongue 121 , a locking seat 122 and a rotating rod 123 .

[0040] 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.

[0041] 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.

[0042] In this embodiment, two adjacent connecting rods 11 at the corners of the corresponding door panel 1 are connected through a transmission member 13 .

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] Preferably, the profile interface of the connecting rod 11 is U-shaped.

[0049] 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.

[0050] 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 .

[0051] One of the two brackets 21 is fixed on the door panel 1 , and the other is fixed on the door frame 2 .

[0052] The middle parts of the two connecting rods 22 are hinged, so that the two connecting rods 22 form an X-shaped adjustment frame with adjustable rotation angle.

[0053] The X-shaped adjustment frame is connected between the two brackets 21 , and in the door open state, the two brackets 21 are indirectly connected via the X-shaped adjustment frame and maintain a distance.

[0054] In this embodiment, the first bracket 21 a of the two brackets 21 is fixed to the inner side of the door panel 1 , and the second bracket 21 b is fixed to the door frame 2 and is disposed corresponding to the first bracket 21 a .

[0055] Among them, one end of the first connecting rod 22a of the two connecting rods 22 is hinged to one end of the first bracket 21a, and the other end is slidably connected to the second bracket 21b along the length direction of the second bracket 21b; one end of the second connecting rod 22b is hinged to one end of the second bracket 21b, and the other end is slidably connected to the first bracket 21a along the length direction of the first bracket 21a.

[0056] Preferably, the first bracket 21a is provided with a first long hole 211a along its length direction, and the other end of the second connecting rod 22b is slidingly connected to the first long hole 211a; the second bracket 21b is provided with a second long hole 211b along its length direction, and the other end of the first connecting rod 22a is slidingly connected to the second long hole 211b.

[0057] Preferably, both brackets 21 are right-angle profiles, having a horizontal surface 212 and a vertical surface 213 , wherein the horizontal surface 212 is provided with the first long hole 211 a or the second long hole 211 b , and the vertical surface 213 serves as a fixing surface with the door panel 1 or the door frame 2 .

[0058] Preferably, the length of the second connecting rod 22b is smaller than that of the first connecting rod 22a, and a limiting groove 25 is provided at the other end of the first connecting rod 22a corresponding to the second connecting rod 22b; in the closed state, the other end of the second connecting rod 22b is located in the limiting groove 25.

[0059] The flat-press hinge mechanism of this invention utilizes an X-shaped adjustment frame structured around two hinged connecting rods. The ends of the connecting rods form a sliding and hinged relationship with two brackets. When the system switches from open to closed, the X-shaped adjustment frame first maintains the initial distance between the two brackets, ensuring an appropriate gap between the door panel and the door frame at the hinge. Subsequently, the X-shaped adjustment frame's rotational angle adjustment function allows the door panel to smoothly approach the door frame, completing the closing motion, achieving a "translation-first, closing-second" closing process.

[0060] 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.

[0061] 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 in the door open state, the two brackets are indirectly connected through the X-shaped adjustment frame and maintain a distance.

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.

9. The multi-directional synchronous tensioning and locking system according to claim 1, characterized in that: 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.

10. The multi-directional synchronous tensioning and locking system according to claim 9, characterized in that: 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.

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