Passive aluminum alloy automatic sliding door system and using method thereof

Abstract

The invention provides a passive aluminum alloy automatic sliding door system and a using method thereof.The passive aluminum alloy automatic sliding door system comprises a fixed door leaf, a movable door leaf and linkage pressing and sealing mechanisms, the movable door leaf and the fixed door leaf are arranged in a relative sliding mode, and the linkage pressing and sealing mechanisms are arranged on the upper side and the lower side of the movable door leaf; the linkage pressing sealing mechanism drives the movable connecting rod to move through collision, the movement is converted into the movement of the pressing mechanism, the sealing rubber strip is driven to press downwards, and tight sealing is formed. Through the innovative sealing structure design, the purposes of high efficiency, energy conservation, excellent sealing, long-term durability and the like are successfully achieved, and the sealing structure is particularly suitable for door and window systems of high-efficiency buildings such as passive buildings and energy-saving buildings. In addition, due to the barrier-free design, stable operation and high passing efficiency, the practicability and user experience of the system are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building doors and windows, and in particular to a passive aluminum alloy automatic sliding door system and its usage method. Background Art

[0002] Traditional aluminum alloy automatic sliding doors are widely used in public places such as hospitals and exhibition halls, but they have the following defects: insufficient sealing performance, when the door leaf closes, it only relies on ordinary rubber strips, which are difficult to block air penetration, resulting in energy loss. Thermal bridge effect, the thermal conductivity coefficient of ordinary aluminum alloy profiles is high, forming a thermal bridge and reducing the heat preservation performance. Threshold structure, a threshold needs to be set at the bottom of the traditional door to assist in sealing, which hinders barrier-free passage. Rubber strip wear, when the door is opened and closed, the rubber strip rubs against the ground or the door frame, resulting in sealing failure. With the strict requirements of passive buildings for sealing performance and heat preservation performance, a new type of automatic sliding door technology is urgently needed. Summary of the Invention

[0003] The purpose of the present invention is to provide a passive aluminum alloy automatic sliding door system and its usage method, which has excellent sealing performance and heat preservation performance, and realizes the functions of automatic opening and closing through intelligent control. It is applicable to passive buildings and high-efficiency energy-saving buildings, and can effectively reduce energy consumption and improve comfort.

[0004] According to an object of the present invention, the present invention provides a passive aluminum alloy automatic sliding door system, including a fixed door leaf, a movable door leaf and a linkage pressing and sealing mechanism. The movable door leaf is slidably arranged relative to the fixed door leaf. The linkage pressing and sealing mechanism is arranged on the upper and lower sides of the movable door leaf. The linkage pressing and sealing mechanism drives the movement of the movable connecting rod through collision, converts it into the movement of the pressing mechanism, and drives the sealing rubber strip to press downwards to form a tight seal.

[0005] Furthermore, both the fixed door leaf and the movable door leaf include an indoor aluminum alloy profile and an outdoor aluminum alloy profile. The indoor aluminum alloy profile and the outdoor aluminum alloy profile are connected by a nylon heat insulation strip to form an integral structure. The cavity formed by the nylon heat insulation strip and the indoor aluminum alloy profile and the outdoor aluminum alloy profile is filled with polyurethane foam.

[0006] Furthermore, the fixed door leaf and the movable door leaf are made of broken bridge aluminum alloy profiles, and both the fixed door leaf and the movable door leaf are embedded with a vacuum glass composite insulating glass unit.

[0007] Furthermore, a PE heat preservation cotton is provided between the vacuum glass composite insulating glass unit embedded in the fixed door leaf and the movable door leaf and the aluminum profile.

[0008] Further, it also includes a sensor and a track frame. The track frame is fixed on the transverse keel, and the sensor is arranged above the movable door leaf.

[0009] Further, the sensor is a microwave and infrared dual-mode sensor.

[0010] Further, an anti-sway mechanism is arranged in the outer groove at the lower part of the movable door leaf.

[0011] Further, the contact positions between the movable door leaf and the fixed door leaf, and between the opposite movable door leaves are tightly sealed with a sealing strip.

[0012] Further, the linkage pressing and sealing mechanism includes a seal base, a movable connecting rod, a seal movable pressing rod and a rotatable connecting rod. The seal base is connected to the inner part of the bottom groove of the movable door leaf. An activity connecting rod support is arranged on the seal base. The movable connecting rod is arranged on the activity connecting rod support and is slidably connected with the activity connecting rod support. A spring is arranged between the movable connecting rod and the activity connecting rod support. The seal movable pressing rod is arranged in the activity connecting rod support. The rotatable connecting rod is respectively hinged to the seal base and the seal movable pressing rod. The movable connecting rod is hinged to the rotatable connecting rod.

[0013] According to another object of the present invention, the present invention provides a method for using the above passive aluminum alloy automatic sliding door system, including the following steps:

[0014] S1. When closing the door, the movable door leaf moves to the end position of the closing stroke. The contact point of the movable connecting rod collides with the block of the linkage pressing and sealing mechanism, driving the movable connecting rod and the rotatable connecting rod to rotate, driving the seal movable pressing rod to move downward, pressing the sealing strip, and forming a tight seal.

[0015] S2. When opening the door, the contact point of the movable connecting rod disengages from the block of the linkage pressing and sealing mechanism. The rotatable connecting rod returns to the original position under the elastic force of the spring. The seal movable pressing rod drives the sealing strip to be lifted upward, and the sealing strip disengages from the contact. Then, the door is opened horizontally, reducing the frictional resistance and avoiding the wear of the sealing strip.

[0016] Through the innovative sealing structure design, the technical solution of the present invention has successfully achieved the goals of high efficiency in energy conservation, excellent sealing, long-term durability, etc., and is particularly suitable for the door and window systems of high-performance buildings such as passive buildings and energy-saving buildings. In addition, the barrier-free design, stable operation and high traffic efficiency of the present invention greatly improve the practicality of the system and the user experience. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of the four-panel side-opening sliding door according to the embodiment of the present invention;

[0019] Figure 2 Side view of the four-panel side-opening sliding door according to the embodiment of the present invention;

[0020] Figure 3 Top view of the four-panel side-opening sliding door according to the embodiment of the present invention;

[0021] Figure 4 Structural schematic diagram of the two-panel overlapping sliding door according to the embodiment of the present invention;

[0022] Figure 5 Side view of the two-panel overlapping sliding door according to the embodiment of the present invention;

[0023] Figure 6 Top view of the two-panel overlapping sliding door according to the embodiment of the present invention;

[0024] Figure 7 Partial structural schematic diagram of the door leaf structure according to the embodiment of the present invention;

[0025] Figure 8 Structural schematic diagram of the automatic door in the top-open state according to the embodiment of the present invention;

[0026] Figure 9 Structural schematic diagram of the automatic door in the top-closed state according to the embodiment of the present invention;

[0027] Figure 10 Structural schematic diagram of the linkage pressing and sealing mechanism in the open state according to the embodiment of the present invention;

[0028] Figure 11 Structural schematic diagram of the linkage pressing and sealing mechanism in the closed state according to the embodiment of the present invention;

[0029] Figure 12 Structural schematic diagram of the automatic door in the bottom-open state according to the embodiment of the present invention;

[0030] Figure 13 Structural schematic diagram of the automatic door in the bottom-closed state according to the embodiment of the present invention;

[0031] Figure 14Schematic diagram of the partial structure at the overlapping position between the movable door leaf and the fixed door leaf in the embodiment of the present invention;

[0032] Figure 15 Position structure diagram between the double-opening door leaves in the embodiment of the present invention;

[0033] Figure 16 Position structure diagram between the movable door leaf and the side wall in the embodiment of the present invention;

[0034] In the figure: 1, fixed door leaf; 2, movable door leaf; 3, sensor;

[0035] 4, track frame; 41, horizontal keel; 42, track; 43, pulley; 44, motor; 45, thermal insulation layer; 46, housing;

[0036] 5, linkage compression sealing mechanism; 501, seal base; 502, seal movable pressure rod; 503, sealing strip; 504, linkage compression sealing mechanism stop block; 505, movable connecting rod contact point; 506, spring; 507, movable connecting rod support; 508, movable connecting rod; 509, rotatable connecting rod;

[0037] 6, anti-sway mechanism; 7, indoor aluminum alloy profile; 8, outdoor aluminum alloy profile; 9, nylon heat insulation strip; 10, polyurethane foam; 11, PE thermal insulation cotton; 12, outdoor sheet glass; 13, double-layer vacuum insulating glass; 14, inert gas; 15, insulating glass warm edge spacer; 16, cover; 17, cover gasket strip; 18, cover sealing strip; 19, sealing wool strip; 20, door leaf outer sealing strip; 21, vertical keel; 22, embedded frame; 23, side sealing wool strip. Detailed implementation manners

[0038] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected", and "joined" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Embodiment 1

[0042] As Figures 1 - 16 shown:

[0043] A passive aluminum alloy automatic sliding door system includes a fixed door leaf 1, a movable door leaf 2, a sensor 3, a track frame 4, and a linkage pressing and sealing mechanism 5. The linkage pressing and sealing mechanism 5 includes a connecting rod-spring mechanism and a sealing strip. The movable door leaf triggers the connecting rod-spring mechanism to press the sealing strip at the end of closing, and releases the strip when opening the door to reduce friction.

[0044] The fixed door leaf 1 and the movable door leaf 2 are made of broken bridge aluminum alloy profiles. Both the fixed door leaf 1 and the movable door leaf 2 are embedded with vacuum glass laminated insulating glass to improve the heat insulation performance.

[0045] Specifically, as Figure 7 shown, in this embodiment, both the fixed door leaf and the movable door leaf include an indoor aluminum alloy profile 7 and an outdoor aluminum alloy profile 8. The indoor aluminum alloy profile 7 and the outdoor aluminum alloy profile 8 are connected by a nylon heat insulation strip 9 to form an integral structure. The nylon heat insulation strip 9 is the most commonly used aluminum alloy broken bridge material, which greatly reduces the energy loss caused by heat conduction on the premise of ensuring strength. The cavity formed by the nylon heat insulation strip 9 and the indoor aluminum alloy profile 7 and the outdoor aluminum alloy profile 8 is filled with polyurethane foam 10 to block heat conduction (thermal conductivity ≤ 1.3 W / (m 2 ·K)).

[0046] The fixed door leaf and the movable door leaf are embedded with a glass assembly, and a PE thermal insulation cotton 11 is added between the glass assembly and the aluminum profile to block air convection and reduce heat transfer;

[0047] In this embodiment, the glass assembly adopts vacuum glass laminated insulating glass, specifically including an outdoor glass sheet 12 (with a low-E reflective film) and a double-layer vacuum glass 13. A hollow glass warm-edge spacer 15 is provided between the outdoor glass sheet and the double-layer vacuum glass, and an inert gas 14 is filled. The overall U-value ≤ 0.5W / (m 2 ·K).

[0048] The above thermal insulation measures ensure that the thermal insulation performance of the profiles and glass meets the performance requirements of passive doors and windows.

[0049] As Figures 1 - 3 shown, this embodiment demonstrates an automatic sliding door with four door leaves, that is, a four-panel double-opening structure with two movable door leaves in the middle and two fixed door leaves on both sides, and an automatic sliding door in which the two movable door leaves in the middle open to both sides. The two middle doors slide to both sides, suitable for wide door openings (≥ 3m) scenarios.

[0050] As Figures 4 - 6 shown, this embodiment also demonstrates an automatic sliding door with two door leaves, that is, an overlapping automatic sliding door with one movable door leaf opening behind the other fixed door leaf. A single door slides behind the other, saving space and suitable for narrow passages.

[0051] As Figure 8 and Figure 9 shown, the horizontal keel 41 at the top of the automatic door is the main load-bearing structure, and the track 42 is installed on the horizontal keel 41; the motor 44 and the controller are installed on the track 42, and the pulley 43 and the bracket of the movable door are installed and fixed at the top of the movable door leaf and slide on the track 42; the horizontal keel 41 and the outside of the track 42 are wrapped with a thermal insulation layer 45, and an aluminum plate is used as the shell 46 of the track frame outside; sensors 3 are installed on both the inner and outer sides of the shell 46. When the sensors 3 sense that people are approaching the door body, the controller controls the motor 44 to drive the pulley 43 to rotate and drive the movable door leaf 2 to move horizontally to open. When people leave, the movable door leaf is closed in time. When there is no one passing through the movable door leaf 2, it is in a closed and sealed state to avoid energy loss caused by the door being open for a long time.

[0052] Two groups of linkage pressing and sealing mechanisms are provided on both sides of the upper part of the movable door leaf 2. When the movable door leaf 2 moves to the end position of the door closing, the linkage pressing and sealing mechanism drives the movement of the movable link through collision, which is converted into the movement of the pressing mechanism, driving the sealing strip to press downwards to form a tight seal.

[0053] When opening the door, the contact point of the movable link disengages, and the linkage pressing and sealing mechanism moves in the reverse direction under the action of the spring force, lifting the sealing strip, disengaging the sealing strip from contact, and then moving horizontally to open the door, reducing the frictional resistance and avoiding wear of the sealing strip.

[0054] A set of linkage compression sealing mechanism is also provided at the bottom of the movable door leaf 2. When the movable door leaf 2 moves to the end position of door closing, the linkage compression sealing mechanism drives the movement of the movable connecting rod through collision, which is converted into the movement of the compression mechanism, driving the sealing strip to press downwards to form a tight seal. The door sill-free sealing is adopted, and the bottom compression mechanism is embedded inside the lower cross frame of the movable door leaf, canceling the traditional raised door sill, and combining with anti-sway guide wheels to ensure the translation stability.

[0055] When opening the door, the contact point of the movable connecting rod is disengaged, and the linkage compression sealing mechanism moves in the reverse direction under the action of the spring force, lifting the sealing strip so that the sealing strip is disengaged from the contact, and then moving horizontally to open the door, reducing the frictional resistance and avoiding the wear of the sealing strip.

[0056] During the horizontal movement of the movable door leaf 2 during opening and closing, an anti-sway mechanism 6 is provided in the outer groove at the bottom of the movable door leaf 2 to prevent the door leaf from shaking. There is no raised or sunken door sill structure on the ground under the lower edge of the movable door leaf 2, which is convenient for applications in scenarios where a large number of people pass through. The stoppers of the linkage compression sealing mechanism and the stoppers of the anti-sway mechanism 6 are both arranged at the corner positions close to the fixed door leaf, which will not affect the passage of people.

[0057] As Figure 10 and Figure 11 shown, taking the lower part of the movable door leaf 2 as an example, the structure of the linkage compression sealing mechanism is shown (the form of the linkage compression sealing mechanism in the upper part is the same). The seal base 501 is connected to the inner part of the bottom groove of the movable door leaf 2, the movable connecting rod support 507 is connected to the seal base 501, and the movable connecting rod 508 slides on the movable connecting rod support 507. The spring 506 connects the movable connecting rod 508 and the movable connecting rod support 507. The rotatable connecting rod 509 is hinged between the seal base 501 and the seal movable pressure rod 502, and the sealing strip 503 is installed in the groove of the seal movable pressure rod 502. The movable connecting rod 508 is hinged to the rotatable connecting rod 509.

[0058] The movable connecting rod contact point 505 protrudes from the front end of the movable door leaf 2. When closing the door, when the movable door leaf 2 moves to the end position of the closing stroke, the movable connecting rod contact point 505 collides with the stopper 504 of the linkage compression sealing mechanism, driving the rotation of the movable connecting rod 508 and the rotatable connecting rod 509, driving the seal movable pressure rod 502 to move downwards, pressing the sealing strip 503 to form a tight seal;

[0059] For the case of two opposing movable door leaves, at the middle position between the two opposing movable door leaves, there is no need to set a stopper for the linkage compression sealing mechanism. The movable connecting rod contact points of the linkage compression sealing mechanisms of the corresponding two movable door leaves are mutually pressed to realize the pressing action of the rubber strip. Double-layer EPDM rubber strips are used for staggered pressing, and the compression amount is ≥4mm.

[0060] When the door is opened, the moving link contact point 505 disengages from the linkage pressing and sealing mechanism block 504. The rotatable link 509 returns to its original position under the elastic force of the spring 506. The seal moving pressure rod 502 drives the sealing strip 503 to lift upward, and the sealing strip 503 disengages. Then, the door is moved horizontally to open, reducing the frictional resistance and avoiding wear of the sealing strip.

[0061] As Figure 12 and Figure 13 shown, there is no raised or sunken threshold structure on the ground under the movable door leaf, which is convenient for the application in scenarios where a large number of people pass through. The positions where the linkage pressing and sealing mechanism 5 and the anti-swing mechanism block 6 are set will not affect the passage of people.

[0062] A series of pressing and sealing measures are taken at the hooked parts of the movable door leaf 2 and the fixed door leaf 1, the docking parts of the opposed movable door leaves, the docking parts of the single movable door leaf and its side door frame, etc., to ensure that the closed door has very high sealing performance and heat insulation performance, meeting the requirements of passive buildings.

[0063] Specifically, as Figure 14 shown, at the overlapping position of the movable door leaf 2 and the fixed door leaf 1: The profiles of the fixed door leaf 1 and the movable door leaf 2 at the overlapping part are installed with sealing wool strips 19 and cover sealing rubber strips 18 using covers 16. When the door leaf is closed, the cover sealing rubber strips 18 are compressed against each other to improve the sealing performance; the cover gasket strip 17 is a non-metallic heat-insulating material, forming a thermal break to block the rapid conduction and dissipation of heat.

[0064] As Figure 15 shown, at the position between the opposed door leaves: A door leaf outer sealing rubber strip 20 is fixed on the opposite side of the movable door leaf 2. A structure with double sealing rubber strips cooperating and pressing is adopted between the two movable door leaves 2 to improve the sealing performance between the two door leaves.

[0065] As Figure 16 shown, at the position between the movable door leaf and the side wall: The side wall has vertical keels 21. The outside of the vertical keels 21 is wrapped with a thermal insulation layer + aluminum plate to ensure heat insulation, and the embedded frame adopts a thermal break aluminum alloy structure; The movable door leaf and the embedded frame 22 are sealed with a structure with double sealing rubber strips cooperating and pressing. Combined with the frame wrapping the fan structure, the side sealing wool strip 23 prevents dust, and the overall sealing performance meets the requirements of passive doors and windows.

[0066] In the above embodiments, the compression deformation rate of the adopted sealing rubber strip ≥ 30%, and the resilience rate ≥ 90%.

[0067] In the above embodiments, an intelligent control module is used to control the movement of the door leaf. Specifically, a microwave + infrared dual-mode sensor is used to monitor the flow of people in real time, and the pressing and sealing program is started within 10 seconds after the door leaf is closed. A motor is used to drive a pulley set (reduction ratio 1:50) to achieve smooth start and stop, and the running noise is ≤45 dB. The control system parameters are set, and the start and stop acceleration of the motor is controlled by the PID algorithm to be ≤0.3 m / s 2 , preventing the inertial swing of the door leaf.

[0068] The present invention has good energy-saving performance and durability. The overall heat transfer coefficient U ≤ 0.8 W / (m 2 ·K), and the airtightness reaches the EN12207 standard Class 4, meeting the requirements of passive buildings. The pressing and sealing mechanism can withstand ≥500,000 opening and closing cycle tests, and the wear amount of the rubber strip is <0.2 mm.

[0069] The present invention adopts a barrier-free design. The threshold-free structure complies with the GB50763-2012 barrier-free specification, and the passing efficiency is increased by 30%. An intelligent maintenance design is adopted. The controller is built-in with a fault diagnosis module to monitor the sealing pressure and motor torque in real time and alarm in case of abnormality.

[0070] Through the collaborative innovation of mechanical-material-control technologies, the present invention realizes ultra-low energy consumption and long-term sealing of automatic sliding doors in high-frequency usage scenarios, filling the technical gap in the field of automatic doors for passive buildings.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A passive aluminum alloy automatic sliding door system, characterized in that: It includes a fixed door leaf, a movable door leaf and a linked compression and sealing mechanism. The movable door leaf is arranged to slide relative to the fixed door leaf. The linked compression and sealing mechanism is arranged on the upper and lower sides of the movable door leaf. The linked compression and sealing mechanism drives the movable connecting rod to move through collision, which is converted into movement of the compression mechanism, and drives the sealing strip to be compressed downward to form a tight seal.

2. The passive aluminum alloy automatic sliding door system according to claim 1 is characterized in that: The fixed door leaf and the movable door leaf both include an indoor aluminum alloy profile and an outdoor aluminum alloy profile. The indoor aluminum alloy profile and the outdoor aluminum alloy profile are connected by a nylon insulation strip to form an integral structure. The cavity formed by the nylon insulation strip and the indoor aluminum alloy profile and the outdoor aluminum alloy profile is filled with polyurethane foam.

3. The passive aluminum alloy automatic sliding door system according to claim 1 is characterized in that: The fixed door leaf and the movable door leaf are made of thermally-broken aluminum alloy profiles, and both the fixed door leaf and the movable door leaf are embedded with vacuum glass composite insulating glass components.

4. The passive aluminum alloy automatic sliding door system according to claim 3 is characterized in that: PE thermal insulation cotton is arranged between the vacuum glass composite insulating glass assembly embedded in the fixed door leaf and the movable door leaf and the aluminum profile.

5. The passive aluminum alloy automatic sliding door system according to claim 1, characterized in that: It also includes a sensor and a track frame, wherein the track frame is fixed on the transverse keel, and the sensor is arranged above the movable door leaf.

6. The passive aluminum alloy automatic sliding door system according to claim 5, characterized in that: The sensor is a microwave and infrared dual-mode sensor.

7. The passive aluminum alloy automatic sliding door system according to claim 1, characterized in that: An anti-sway mechanism is arranged in the lower outer groove of the movable door leaf.

8. The passive aluminum alloy automatic sliding door system according to claim 1, characterized in that: The contact positions between the movable door leaf and the fixed door leaf and the movable door leaf that opens into two parts are compressed and sealed by using sealing strips.

9. The passive aluminum alloy automatic sliding door system according to claim 1, characterized in that: The linkage compression sealing mechanism includes a sealing base, a movable connecting rod, a sealing movable pressure rod and a rotatable connecting rod. The sealing base is connected to the bottom groove of the movable door leaf, and a movable connecting rod support is provided on the sealing base. The movable connecting rod is arranged on the movable connecting rod support and is slidably connected to the movable connecting rod support. A spring is provided between the movable connecting rod and the movable connecting rod support. The sealing movable pressure rod is arranged in the movable connecting rod support. The rotatable connecting rod is respectively hingedly connected to the sealing base and the sealing movable pressure rod, and the movable connecting rod is hinged to the rotatable connecting rod.

10. The method for using the passive aluminum alloy automatic sliding door system according to claim 9, characterized in that: The steps include: S1. When closing the door, the movable door leaf moves to the end of the closing stroke, the movable connecting rod touches the stopper of the linkage compression sealing mechanism, driving the movable connecting rod and the rotatable connecting rod to rotate, driving the movable compression rod of the sealing member to move downward, compressing the sealing strip to form a tight seal; S2. When opening the door, the contact point of the movable connecting rod is disengaged from the stopper of the linkage compression sealing mechanism, and the rotatable connecting rod returns to its original position under the elastic force of the spring. The movable pressure rod of the seal drives the sealing strip to be lifted upward, and the sealing strip is disengaged, and then the door is opened by moving horizontally, thereby reducing friction resistance and avoiding wear of the sealing strip.

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