A multi-door, ultra-narrow aluminum frame, left-right mutual push and unidirectional linkage hanging wheel system

Abstract

This utility model discloses a hanging wheel system for multi-door ultra-narrow aluminum profiles that allows for left-right mutual pushing and unidirectional linkage. It includes multiple anti-sway wheel assemblies and multiple guide grooves. The anti-sway wheel assemblies are respectively installed at the bottom of each door. Each anti-sway wheel assembly includes an anti-sway wheel body and an anti-sway rod. The anti-sway wheel body has a connecting part on its upper part and a first contact wheel at its bottom. One end of the anti-sway rod is connected to the connecting part, and the other end has a second contact wheel. Multiple guide grooves are respectively located at corresponding positions on the bottom of each door for limiting engagement with the second contact wheels of adjacent doors. The second contact wheels at least partially extend into the guide grooves of adjacent doors and roll during relative movement of the doors to restrict lateral swaying and achieve left-right mutual pushing and unidirectional linkage. Therefore, by adopting a layered limiting method of "second contact wheel + guide groove," the lateral swaying during the sliding process of each door is effectively suppressed, ensuring that the movement paths of each limiting structure do not interfere with each other during the left-right mutual pushing linkage of multiple doors, thus guaranteeing stable and smooth linkage operation.

Description

Technical Field

[0001] This utility model relates to the field of anti-sway wheel technology for doors and windows, specifically to a hanging wheel system that allows multiple doors with extremely narrow aluminum profiles to push each other in the same direction. Background Technology

[0002] Interlocking doors are widely used in engineering partitions and residential spaces because they enable simultaneous opening and closing of multiple doors in the same direction or by pushing each other left and right. In particular, flush-mounted interlocking doors using ultra-narrow aluminum profiles have linkage mechanisms that can be concealed within the door body or frame, preserving the overall appearance while allowing for synchronized movement of multiple doors, thus increasing their application demand.

[0003] The linkage mechanism of existing interlocking doors is usually achieved through guide wheels, belts, and connecting components located on the upper part of the door. However, in actual use, the door often sways laterally or back and forth when sliding, which not only affects the smoothness of opening and closing but may also cause abnormal force on the linkage mechanism, resulting in jamming.

[0004] To reduce swaying, common technical solutions include: First, installing fixed and linked anti-sway components at the bottom of the door to limit swaying through their cooperation. However, this method requires drilling holes in the ground to install the fixed anti-sway components, making construction complex; furthermore, the linked anti-sway components can usually only be placed on one side of the door, limiting the anti-swaying effect. Second, installing anti-sway wheels at the bottom of the door to reduce swaying by adjusting the contact pressure between the anti-sway wheels and the ground. This solution is suitable for single doors or a small number of interlocking doors, but when there are many doors, especially when multiple doors need to be linked by left-right mutual pushing, the anti-sway wheels at the bottom of each door are prone to interference during movement, causing jamming or sluggish operation.

[0005] Therefore, existing technologies cannot simultaneously meet the following requirements: adapt to linkage structures composed of multiple door panels; be able to arrange anti-sway components on both sides of the bottom of each door panel; ensure that multiple door panels do not interfere with each other during linkage or mutual pushing; and achieve stable anti-sway effect and smooth linkage transmission.

[0006] In view of the above problems, there is an urgent need for a linkage structure that is suitable for multiple doors, can provide a stable anti-sway function at the bottom of the door, and can avoid interference between multiple anti-sway mechanisms. Utility Model Content

[0007] To overcome the defects described in the prior art, this utility model provides a multi-door ultra-narrow aluminum material left and right mutual push and same direction linkage hanging wheel system. It adopts a layered limiting method of "second contact wheel + guide groove" to effectively suppress the lateral swing of each door body during the sliding process, so that the movement paths of each limiting structure do not interfere with each other when the multiple doors push and link left and right. This ensures stable and smooth linkage operation.

[0008] The technical solution adopted by this utility model to solve its problem is: A system for interlocking, left-right pushing and unidirectional linkage of multiple ultra-narrow aluminum profiles includes: Multiple anti-sway wheel assemblies are respectively installed at the bottom of each of the multiple door bodies. Each anti-sway wheel assembly includes an anti-sway wheel body and an anti-sway rod. The anti-sway wheel body is provided with a connecting part and its bottom is provided with a first contact wheel for rolling on the ground. One end of the anti-sway rod is connected to the connecting part, and the other end is provided with a second contact wheel. Multiple guide grooves are respectively set at corresponding positions on the bottom of each of the door bodies, for limiting cooperation with the second contact wheel on the adjacent door body; In this configuration, the second contact wheel on any of the door bodies extends at least partially into the guide groove at the bottom of its adjacent door body, and rolls within the corresponding guide groove when the two adjacent door bodies move relative to each other, thereby limiting the lateral swing between the two adjacent door bodies and enabling the multiple door bodies to achieve left-right mutual push in the same direction.

[0009] Furthermore, each of the door bodies is provided with an anti-sway wheel body on both the left and right sides of its bottom; wherein, the two outermost door bodies are connected to the anti-sway rod only on the anti-sway wheel body on the side facing the adjacent door body, while each of the middle door bodies is provided with the anti-sway rod on the anti-sway wheel body on both its left and right sides, so that the second contact wheel on each anti-sway rod extends into the guide groove at the bottom of its adjacent door body to form a limiting fit.

[0010] Furthermore, the connecting part includes a slider disposed at one end of the anti-sway wheel body; one end of the anti-sway rod is provided with a groove that is slidably connected to the corresponding slider; The slider is provided with a screw hole, and the anti-sway rod is provided with a locking hole corresponding to the screw hole. A first fastener passes through the locking hole and is fastened in the screw hole to fix the slider and the slide groove in place.

[0011] Furthermore, the locking hole is an oblong hole extending along the length direction of the anti-sway bar.

[0012] Furthermore, each of the anti-sway wheel bodies is provided with a first positioning groove, and each of the anti-sway rods is provided with a first positioning guide block that cooperates with the first positioning groove; Each of the anti-sway wheel bodies is also provided with a second positioning groove, and each of the anti-sway rods is provided with a second positioning guide block that cooperates with the second positioning groove.

[0013] Furthermore, each of the door bodies has a groove at its bottom, and each of the anti-sway wheel bodies has a locking block that mates with the groove; when the anti-sway wheel body is installed at the bottom of the door body, the locking block is engaged in the groove and fixed by a second fastener.

[0014] Furthermore, the groove is located at the middle position of the bottom of the door body, and guide grooves are formed on the left and right sides of the groove, so that the second contact wheel on the adjacent door body can extend into and engage.

[0015] Furthermore, the guide groove is a groove extending along the moving direction of the door body.

[0016] Furthermore, when any of the door panels is pushed outward relative to its adjacent door panel, the anti-sway bars on the adjacent door panels abut against each other, or the second contact wheel abuts against the adjacent anti-sway bars, to restrict the door panels from detaching outward.

[0017] Furthermore, each of the doors is provided with a roller assembly at the top for guiding the movement of the door.

[0018] In summary, this utility model has the following technical effects: 1. This utility model provides a multi-door, ultra-narrow aluminum frame system with interlocking left-right pushing and unidirectional linkage of hanging wheels. By installing an anti-sway wheel assembly consisting of an anti-sway wheel body and an anti-sway rod at the bottom of each door, and combining it with a guide groove structure installed at the bottom of adjacent doors, the second contact wheel on the anti-sway rod can partially extend into the guide groove of the adjacent door. During relative movement between the doors, it achieves rolling limitation along the guide groove, effectively suppressing the lateral swaying of each door during movement. This solves the problems of lateral swaying, shaking, and jamming that easily occur with traditional upper belt linkage mechanisms, significantly improving the smoothness of door opening and closing and the overall structural stability, enhancing overall anti-sway rigidity, and avoiding the insufficient anti-swaying problem caused by existing technologies where anti-sway components can only be arranged on one side. Furthermore, this utility model does not require drilling holes in the ground to install and fix the anti-sway components, making construction convenient and more adaptable.

[0019] 2. This utility model satisfies the requirements of a multi-door ultra-narrow aluminum material left-right mutual push and same-direction linkage hanging wheel system. Compared with the existing technology where multiple anti-sway wheels may interfere with each other when multiple doors are linked, this utility model uses the structure of "second contact wheel + matching guide groove" to achieve layered and zoned limiting relationship between different doors. The movement paths do not overlap, avoiding hard collisions or interference between anti-sway wheels when multiple doors are linked left-right, ensuring that multiple doors can maintain stable operation under long stroke and long life conditions.

[0020] 3. This utility model satisfies the requirements of a multi-door ultra-narrow aluminum frame left-right mutual pushing and unidirectional linkage hanging wheel system. By setting anti-sway wheel bodies and anti-sway rods at the bottom of each door, and utilizing the rolling limit between the second contact wheel and the bottom guide groove of the adjacent door, stable guidance and effective anti-swaying are achieved for multiple doors during left-right mutual pushing and unidirectional linkage. Furthermore, by arranging the anti-sway rods as needed, the outermost door only has an anti-sway rod on the side facing the adjacent door, while the middle door has anti-sway rods on both sides of its bottom, allowing the second contact wheel to extend into the guide groove of the adjacent door to form a limiting fit. This differentiated arrangement avoids the common problem of mutual interference between bottom anti-sway structures in multi-door linkage, ensuring that adjacent doors maintain reliable lateral restraint during sliding, and preventing "component interference" or operational obstruction due to an increase in the number of linked doors. At the same time, this structure ensures smooth movement and posture stability of each door in the linkage transmission, achieving high-stability linkage control under multi-door ultra-narrow aluminum frame structure, and possessing higher compatibility, expandability, and reliability.

[0021] 4. This utility model satisfies the requirements of a multi-door, ultra-narrow aluminum profile, left-right mutual pushing, unidirectional linkage hanging wheel system. By setting a slider on the anti-sway wheel body and a sliding groove at the end of the anti-sway rod, and using a waist-shaped hole extending along the length of the anti-sway rod in conjunction with a screw hole, the anti-sway rod can be flexibly positioned relative to the anti-sway wheel body in the lateral direction. By adjusting the position of the first fastener in the waist-shaped hole, the lateral installation position of the anti-sway rod on the connecting part can be flexibly changed, allowing the fit clearance between the second contact wheel and the bottom guide groove of the adjacent door body to be adjusted according to the actual needs of different door thicknesses, profile sizes, or multi-door structures. This adjustment capability not only ensures that the second contact wheels of different thicknesses or structures can accurately extend into the corresponding guide grooves to form reliable rolling limits, but also avoids problems such as jamming, interference, or reduced anti-sway effect caused by door size tolerances or installation deviations. Therefore, the anti-sway mechanism can ensure stable operation of multiple doors during linkage and left-right mutual pushing with higher adaptability and assembly tolerance, achieving better anti-sway performance and higher system compatibility. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the multi-door structure of this utility model; Figure 2 This is a schematic diagram of the multi-door installation structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the multi-door body of this utility model; Figure 4 This is a structural schematic diagram of the multi-door linkage open state of this utility model; Figure 5 This is a schematic diagram of the structure of the present invention, showing the multi-door linkage fully opening. Figure 6 for Figure 5 Enlarged diagram of section A in the middle; Figure 7 This is a schematic diagram of the structure of the door body with an anti-sway bar on one side in this utility model; Figure 8 This is a schematic diagram of the structure of the present invention, in which anti-sway bars are provided on both sides of the door body; Figure 9 This is a schematic diagram of the bottom structure of the anti-sway wheel assembly connecting to the door body in this utility model; Figure 10 This is an exploded view of the anti-swing wheel assembly in this utility model; Figure 11 This is a side view of the anti-swing wheel assembly in this utility model.

[0023] The meanings of the reference numerals in the attached figures are as follows: 1. Door body; 11. Guide groove; 12. Groove; 2. Anti-sway wheel body; 21. Slider; 211. Screw hole; 22. First positioning groove; 23. Second positioning groove; 24. Locking block; 3. First contact wheel; 4. Anti-sway rod; 41. Locking hole; 411. Clearance groove; 42. Sliding groove; 43. First positioning guide block; 44. Second positioning guide block; 5. Second contact wheel; 6. Second fastener; 7. First fastener; 8. Hanging wheel assembly; 9. Hanging rail. Detailed Implementation

[0024] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] like Figures 1 to 11As shown, this utility model provides a hanging wheel system that enables multiple doors made of extremely narrow aluminum profiles to push and move in the same direction. It includes multiple anti-sway wheel assemblies and multiple guide grooves 11 correspondingly disposed at the bottom of each door body 1. The multiple anti-sway wheel assemblies are respectively installed at the bottom of multiple door bodies 1. Each anti-sway wheel assembly includes an anti-sway wheel body 2 and an anti-sway rod 4. The anti-sway wheel body 2 has a connecting portion, and its bottom is provided with a first contact wheel 3 for rolling on the ground. One end of the anti-sway rod 4 is connected to the connecting portion, and the other end is provided with a second contact wheel 5. Multiple guide grooves 11 are respectively formed at relative positions at the bottom of each door body 1, for limiting engagement with the second contact wheels 5 on adjacent door bodies 1. The second contact wheel 5 on any door body 1 at least partially extends into the guide groove 11 at the bottom of its adjacent door body 1, and rolls within the guide groove 11 when the adjacent door bodies 1 move relative to each other. This structure effectively suppresses the lateral swaying between doors 1 caused by the narrow frame structure without adding a complex linkage mechanism, enabling multiple doors 1 to achieve smooth unidirectional linkage when pushing each other left and right. This significantly improves the operational stability of the multi-door system under long stroke conditions and avoids problems such as shaking, interference, or jamming that are prone to occur in traditional linkage.

[0028] See Figure 7-8 Each door 1 has an anti-sway wheel body 2 on both the left and right sides of its bottom. The two outermost door bodies 1 have anti-sway rods 4 connected only to the anti-sway wheel body 2 on the side facing the adjacent door body 1, while the middle door body 1 has anti-sway rods 4 connected to both its left and right sides. This arrangement allows the second contact wheels 5 on each anti-sway rod 4 to extend into the guide grooves 11 at the bottom of their respective adjacent door bodies 1, forming double-sided limiting. This arrangement not only improves the overall anti-sway rigidity of the middle door body 1 but also ensures an orderly distribution of the limiting relationships among the door bodies 1 under multi-door linkage, further reducing the risk of interference during the linkage process.

[0029] See Figure 10-11 The connecting part includes a slider 21 disposed at one end of the anti-sway wheel body 2, and a groove 42 at one end of the anti-sway rod 4 that slides with the slider 21. A screw hole 211 is formed on the slider 21, and a locking hole 41 corresponding to the screw hole 211 is provided on the anti-sway rod 4. By passing the first fastener 7 through the locking hole 41 and screwing it into the screw hole 211, a reliable fixed connection can be achieved between the slider 21 and the groove 42.

[0030] Preferably, the locking hole 41 is an oblong hole extending along the length of the anti-sway rod 4, allowing the anti-sway rod 4 to have a certain amount of adjustment in the lateral direction relative to the anti-sway wheel body 2, thereby adapting to door bodies 1 of different thicknesses, keeping the limiting gap consistent, and further improving the installation adaptability and operational stability of the whole machine. It should be noted that in this embodiment, the screw holes 211 are set as two and arranged symmetrically with respect to the center line of the anti-sway wheel body 2. When the anti-sway rod 4 slides into the corresponding groove 42 from either side of the anti-sway wheel body 2, the screw hole 211 in the corresponding direction can be used for fastening, thereby improving the installation flexibility and facilitating production assembly.

[0031] In this embodiment, the anti-sway bar 4 is also provided with a clearance groove 411 communicating with the locking hole 41. Since the head of the first fastener 7 is usually thick, if it is directly exposed, it will easily affect the overall appearance of the door body 1, and may cause interference during the movement of the anti-sway bar 4. By providing the clearance groove 411, the head of the first fastener 7 can be partially or entirely embedded in the internal space of the anti-sway bar 4 after locking, thereby avoiding the situation of protruding and exposing, which not only improves the aesthetics after assembly, but also ensures the reliable avoidance and smooth operation of the anti-sway bar 4 during swinging or sliding.

[0032] Furthermore, each anti-sway wheel body 2 is provided with a first positioning groove 22 and a second positioning groove 23, and the anti-sway rod 4 is provided with a first positioning guide block 43 and a second positioning guide block 44 that cooperate with it. Through the double positioning structure, the anti-sway rod 4 can maintain its stable posture when adjusting its position, prevent rotational sway, and improve the reliability of assembly.

[0033] Meanwhile, the first positioning guide block 43, the slide groove 42, and the second positioning guide block 44 together form a stable grooved guide structure, enabling the anti-sway rod 4 to maintain controlled linear sliding when adjusted along the slider 21, thereby precisely adjusting the distance between the second contact wheel 5 and the anti-sway wheel body 2 to adapt to door bodies 1 of different thicknesses. Furthermore, this grooved structure effectively prevents the anti-sway rod 4 from shifting laterally or wobbling during adjustment or operation, ensuring that the connection between the anti-sway rod 4 and the anti-sway wheel body 2 maintains good rigidity and positioning stability, thereby further improving the reliability and anti-sway effect of the entire anti-sway structure.

[0034] In this embodiment, to ensure the installation stability and adjustment accuracy of the anti-sway bar assembly, the anti-sway bar assembly can only move along the predetermined slide groove 42 direction to adjust the wheel distance between the second contact wheel 5 and the anti-sway wheel body 2, thereby avoiding interference with adjacent anti-sway bars 4 and ensuring that the anti-sway bars 4 under each door 1 do not hook up with each other. To address the potential instability issue when using only a single first fastener 7 to fix the anti-sway bar 4 to the anti-sway wheel body 2, a grooved guide structure is formed on the anti-sway bar 4, allowing the anti-sway bar 4 to slide in from the side of the anti-sway wheel body 2 and be locked. This grooved guide structure effectively restricts the displacement of the anti-sway bar 4 in the direction perpendicular to the slider 21, thus maintaining the stability of the assembly even when fixed with a single first fastener 7, preventing the anti-sway bar 4 from loosening during movement, while ensuring accurate adjustment of the wheel distance between the second contact wheel 5 and the anti-sway wheel body 2 and smooth linkage between each door 1.

[0035] Furthermore, each door body 1 has a groove 12 at its bottom, and each anti-sway wheel body 2 has a locking block 24. When the anti-sway wheel body 2 is installed at the bottom of the corresponding door body 1, the locking block 24 first engages with the groove 12 for initial positioning; then, the second fastener 6 is screwed in from bottom to top, so that the end of the second fastener 6 presses against the top inner wall of the groove 12. Under this pressure, the locking block 24 is forced to press down on the bottom of the groove 12, thereby forming a stable and fixed structure with bidirectional clamping within the groove 12. This structure not only ensures that the anti-sway wheel body 2 remains stable and reliable under long-term sliding and frequent linkage conditions, and is not easy to loosen or wobble, but also allows for installation without additional processing of the profiles, significantly improving assembly convenience and the integrated performance of the door body 1 structure.

[0036] In this embodiment, the guide groove 11 is a groove extending along the moving direction of the door body 1, which is conducive to the second contact wheel 5 rolling and limiting stably within the guide groove 11, thereby maintaining the smooth linkage of each door body 1 throughout the entire stroke.

[0037] It should be noted that, in this embodiment, refer to Figure 9 The groove 12 is located at the center of the bottom of the door body 1, and guide grooves 11 are formed on the left and right sides of the groove 12 for the second contact wheel 5 to extend into. This arrangement allows the guide grooves 11 to form a stable rolling limit engagement with the second contact wheel 5 on the adjacent door body 1, thereby effectively constraining the lateral posture of the door body 1 during sliding or left-right pushing, further improving the overall anti-sway effect and the smoothness and stability of multi-door linkage.

[0038] It should be further noted that in this embodiment, the door body 1 is made of an extremely narrow aluminum structure, which makes the overall thickness of the door body 1 small and the frame space limited, thus making it more suitable for multi-door side-by-side arrangement and left-right mutual push linkage application scenarios. At the same time, the aluminum structure can be easily formed into a groove 12 for installing the anti-sway wheel body 2 and guide grooves 11 on both sides of the groove 12 through profile extrusion or processing, thereby simplifying the processing flow while ensuring structural accuracy and facilitating mass production.

[0039] In other embodiments, each anti-sway wheel body 2 may be provided with an elastic element (not shown in the figure) and an adjusting screw connected to the elastic element. By adjusting the adjusting screw, the elastic element applies an adjustable preload to the anti-sway wheel body 2, thereby ensuring that the first contact wheel 3 is always stably pressed against the ground. This structure can automatically compensate for wear gaps caused by long-term operation, improve the fit reliability of the anti-sway wheel assembly, and enhance the friction between the first contact wheel 3 and the ground while maintaining the smoothness and posture stability of the door body 1 during long-term operation, which helps to further suppress the swaying and lateral displacement of the door body 1.

[0040] In this embodiment, the first contact wheel 3 is preferably made of soft rubber material, which gives it better friction performance and shock absorption effect when rolling in contact with the ground, which helps to improve the smoothness of the door 1 movement and reduce operating noise.

[0041] See Figure 5-6 When any door 1 is pushed outward relative to its adjacent door 1, the anti-sway bars 4 on the adjacent door 1 abut against each other, or the second contact wheel 5 of the door 1 abuts against the anti-sway bar 4 of the adjacent door 1, thereby forming an effective outer limit to prevent the door 1 from completely detaching outward. Through the above abutment relationship, while preventing the door 1 from excessively swinging outward, it can also drive the adjacent door 1 to move synchronously during the outward pushing process, so that the entire multi-door system maintains a continuous and stable operating state during the outward pushing linkage, further improving the safety and smoothness of linkage.

[0042] See Figure 2 Each door 1 is equipped with a hanging wheel assembly 8 at its top to guide the door 1 to move smoothly along the upper track. The top hanging wheel assembly 8 and the bottom anti-sway wheel assembly together form a coordinated upper and lower guiding system, which ensures that the door 1 maintains a stable posture during longitudinal sliding, effectively reducing swaying and guide deviation, thereby further improving the overall smoothness of operation and the reliability of long-term use of the multi-door linkage structure.

[0043] It should be noted that in actual use, a hanging rail 9 can be installed at the top of the door body 1, and the hanging wheel assembly 8 is slidably connected to the hanging rail 9, allowing the door body 1 to move smoothly along the upper rail. The top hanging wheel assembly 8, together with the bottom anti-sway structure, forms a coordinated dual-rail guiding system, ensuring not only the stability of the door body 1 during its entire sliding motion, reducing swaying and deviation, but also further improving the smoothness and reliability of the multi-door linkage system during long-stroke operation.

[0044] In summary, this utility model satisfies the requirements of a multi-door ultra-narrow aluminum material left-right mutual push and unidirectional linkage hanging wheel system. By setting an anti-sway wheel assembly consisting of an anti-sway wheel body 2 and an anti-sway rod 4 at the bottom of each door body 1, and combining it with the guide groove 11 structure installed at the bottom of adjacent door bodies 1, the second contact wheel 5 on the anti-sway rod 4 can partially extend into the guide groove 11 of the adjacent door body 1, and achieve rolling limit along the guide groove 11 when the door bodies 1 move relative to each other. Moreover, the lateral sway of each door body 1 during the movement process is effectively suppressed, solving the problems of lateral sway, shaking and jamming that are easy to occur when using the traditional upper belt linkage mechanism, thereby improving the smoothness of opening and closing of the door body 1 and the operational stability of the overall structure.

[0045] This invention provides a multi-door, ultra-narrow aluminum frame system with mutually pushing, unidirectional, and linked hanging wheels. The anti-sway wheel assemblies can be arranged in pairs on both sides of the bottom of the middle door 1, allowing each middle door 1 to form a double-sided limiting fit with its adjacent front and rear door 1s. This structure not only enhances the overall anti-sway rigidity but also avoids the insufficient anti-sway problem caused by existing technologies where anti-sway components can only be arranged on one side. Furthermore, this invention eliminates the need for drilling holes in the ground to install and fix the anti-sway components, making construction convenient and offering greater adaptability.

[0046] This utility model satisfies the requirements of a multi-door ultra-narrow aluminum material left-right mutual push and same-direction linkage hanging wheel system. Compared with the existing technology where multiple anti-sway wheels may interfere with each other when multiple doors are linked, this utility model uses the structure of "second contact wheel 5 + matching guide groove 11" to achieve layered and zoned limiting relationship between different door bodies 1, and the movement paths do not overlap. This fundamentally avoids hard collisions or interference between anti-sway wheels when multiple doors are linked left-right, ensuring that multiple door bodies 1 can maintain stable operation under long stroke and long life conditions.

[0047] This utility model satisfies the requirements of a multi-door ultra-narrow aluminum material left and right mutual push and same direction linkage hanging wheel system. It not only realizes the left and right mutual push and same direction linkage of multiple door bodies 1, but also has many advantages such as anti-sway stability, compact structure, no mutual interference and convenient installation. It effectively overcomes the shortcomings of the existing linkage door structure and significantly improves the overall performance.

[0048] This utility model satisfies the requirements of a multi-door, ultra-narrow aluminum frame system with interlocking left-right and unidirectional linkage hanging wheels. By installing anti-sway wheel bodies 2 and anti-sway rods 4 at the bottom of each door body 1, and utilizing the rolling limit between the second contact wheel 5 and the bottom guide groove 11 of the adjacent door body 1, stable guidance and effective anti-swaying are achieved during the left-right and unidirectional linkage of multiple door bodies 1. Furthermore, by arranging the anti-sway rods 4 as needed, the outermost door body 1 has anti-sway rods 4 only on the side facing the adjacent door body 1, while the middle door body 1 has anti-sway rods 4 on both its bottom left and right sides. This allows the second contact wheels 5 to extend into the guide grooves 11 of the adjacent door bodies 1 to form a limiting fit. This differentiated arrangement avoids the common problem of interference between bottom anti-sway structures in multi-door linkage systems, ensuring that adjacent door bodies 1 maintain reliable lateral restraint during sliding, preventing "component interference" or operational obstruction due to an increase in the number of linked doors. Meanwhile, this structure ensures smooth movement and posture stability of each door body 1 in the linkage transmission, realizing high-stability linkage control under the multi-door ultra-narrow aluminum structure, and has higher compatibility, expandability and reliability.

[0049] This utility model satisfies the requirements of a multi-door, ultra-narrow aluminum profile, left-right mutual push, same-direction linkage hanging wheel system. By setting a slider 21 on the anti-sway wheel body 2 and a sliding groove 42 at the end of the anti-sway rod 4, and using a waist-shaped hole extending along the length of the anti-sway rod 4 to cooperate with a screw hole 211, the anti-sway rod 4 can be flexibly positioned in the lateral direction relative to the anti-sway wheel body 2. By adjusting the position of the first fastener 7 in the waist-shaped hole, the lateral installation position of the anti-sway rod 4 on the connecting part can be flexibly changed, thus allowing the fitting clearance between the second contact wheel 5 and the bottom guide groove 11 of the adjacent door body 1 to be adjusted according to the actual needs of different door body 1 thicknesses, profile sizes, or multi-door structures. This adjustment capability not only ensures that the second contact wheel 5 of door bodies 1 with different thicknesses or structures can accurately extend into the corresponding guide groove 11 to form a reliable rolling limit, but also avoids problems such as jamming, interference, or reduced anti-sway effect caused by door body 1 dimensional tolerances or installation deviations. Therefore, the anti-sway mechanism can ensure the stable operation of multiple door panels 1 during linkage and left-right mutual pushing with higher adaptability and assembly tolerance, achieving better anti-sway performance and higher system compatibility.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0051] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0053] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A system for interlocking left and right push-and-right linkage of hanging wheels for multiple doors made of extremely narrow aluminum profiles, characterized in that, include: Multiple anti-sway wheel assemblies are respectively installed at the bottom of each of the multiple door bodies. Each anti-sway wheel assembly includes an anti-sway wheel body and an anti-sway rod. The anti-sway wheel body is provided with a connecting part, and its bottom is provided with a first contact wheel for rolling on the ground. One end of the anti-sway bar is connected to the connecting part, and the other end is provided with a second contact wheel; Multiple guide grooves are respectively set at corresponding positions on the bottom of each of the door bodies, for limiting cooperation with the second contact wheel on the adjacent door body; In this configuration, the second contact wheel on any of the door bodies extends at least partially into the guide groove at the bottom of its adjacent door body, and rolls within the corresponding guide groove when the two adjacent door bodies move relative to each other, thereby limiting the lateral swing between the two adjacent door bodies and enabling the multiple door bodies to achieve left-right mutual push in the same direction.

2. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 1, characterized in that, Each of the door panels has an anti-sway wheel body on its bottom left and right sides; the two outermost door panels have anti-sway rods connected only to the anti-sway wheel bodies on the side facing the adjacent door panel, while each of the middle door panels has anti-sway rods on the anti-sway wheel bodies on its left and right sides, so that the second contact wheel on each anti-sway rod extends into the guide groove at the bottom of its adjacent door panel to form a limiting fit.

3. The multi-door ultra-narrow aluminum profile left-right mutual pushing and unidirectional linkage hanging wheel system according to claim 2, characterized in that, The connecting part includes a slider disposed at one end of the anti-sway wheel body; one end of the anti-sway rod is provided with a groove that is slidably connected to the corresponding slider; The slider is provided with a screw hole, and the anti-sway rod is provided with a locking hole corresponding to the screw hole. A first fastener passes through the locking hole and is fastened in the screw hole to fix the slider and the slide groove in place.

4. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 3, characterized in that, The locking hole is an oblong hole extending along the length of the anti-sway bar.

5. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 3, characterized in that, Each of the anti-sway wheel bodies is provided with a first positioning groove, and each of the anti-sway rods is provided with a first positioning guide block that cooperates with the first positioning groove; Each of the anti-sway wheel bodies is also provided with a second positioning groove, and each of the anti-sway rods is provided with a second positioning guide block that cooperates with the second positioning groove.

6. The multi-door ultra-narrow aluminum profile left-right mutual pushing and unidirectional linkage hanging wheel system according to claim 2, characterized in that, Each of the door panels has a groove at its bottom, and each of the anti-sway wheel bodies has a locking block that mates with the groove; when the anti-sway wheel body is installed at the bottom of the door panel, the locking block is engaged in the groove and fixed by a second fastener.

7. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 6, characterized in that, The groove is located at the middle of the bottom of the door body, and guide grooves are formed on the left and right sides of the groove, so that the second contact wheel on the adjacent door body can extend into and engage.

8. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 1, characterized in that, The guide groove is a groove that extends along the moving direction of the door.

9. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 1, characterized in that, When any of the doors is pushed outward relative to its adjacent door, the anti-sway bars on the adjacent door abut against each other, or the second contact wheel abuts against the adjacent anti-sway bar, to restrict the door from detaching outward.

10. The multi-door ultra-narrow aluminum profile left-right mutual push and unidirectional linkage hanging wheel system according to claim 1, characterized in that, Each of the gates is provided with a roller assembly at the top for guiding the movement of the gate.

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