Sliding wheel assembly and door and window system comprising same

Abstract

The invention discloses a sliding wheel assembly and a door and window system comprising the same. The sliding wheel assembly comprises a shell; the inner shell is used for being in sliding connection with the track, the inner shell is vertically and movably arranged in the outer shell, and a first guide structure and a second guide structure are arranged between the outer shell and the inner shell; the damping assembly comprises a damper and two shifting blocks, the damper is arranged in the inner shell, and the two shifting blocks are arranged at the two ends of the damper respectively. The first guiding structure and the second guiding structure integrate guiding and limiting functions in matching of the guiding groove and the shaft body, the first shaft body is limited to a first clamping position in a parallelogram shape, and the second shaft body is limited to a second clamping position in a parallelogram shape, so that the height positions of the two ends of the inner shell and the two shifting blocks can be adjusted, and the clamping precision is improved. The sliding wheel assembly is simple in structure, does not need extra complex transmission parts, guarantees the integrity of the inner shell structure, simplifies the connection between the shifting block and the damper, improves the structural stability of the whole sliding wheel assembly, and reduces the damage risk caused by the unstable structure.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of door and window hardware fittings, and particularly relates to a sliding wheel assembly and a door and window system comprising the same. BACKGROUND

[0002] In the existing door and window system, in order to simplify the overall structure, there is a sliding wheel assembly that combines a damper and a pulley together, which is installed on the door body and can provide guiding function and damping function to the door body at the same time. This sliding wheel assembly comprises a pulley and a push block. However, the height of the pulley and the push block is difficult to adjust, and it is difficult to adapt to door and window systems of different sizes. During the movement of the door body, the pulley may jump in the track or the push block may not cooperate with the stop block on the track.

[0003] In order to solve the above problems, a single-wheel sliding wheel assembly with a damper disclosed in Chinese Patent No. CN204343864U comprises an inner clamp, a clamp seat and an outer clamp from inside to outside. The inner clamp is assembled with a damper assembly, which comprises a fixed seat, a damper and a tension spring. The radial through slot of the fixed seat is assembled with a damper push piece, which extends out of the lower end of the inner clamp. The damper push piece is provided with a "7" shaped fixed hook. The clamp seat is provided with a pair of sliding wheel assembly holes, and a pair of sliding wheels are assembled in the sliding wheel assembly holes. The outer clamp is provided with two or more pairs of parallel waist-shaped holes. The clamp seat is provided with two or more pairs of pin hole corresponding to the waist-shaped holes, and the inner clamp is provided with two or more pairs of pin holes corresponding to the waist-shaped holes. The movable rivet passes through the waist-shaped holes of the outer clamp, the pin holes of the clamp seat and the pin holes of the inner clamp to connect the outer clamp, the clamp seat and the inner clamp into one body. The single-wheel sliding wheel assembly is easy to install and adjust, can realize synchronous damping, has good damping effect, ensures the stability of the door leaf operation, and can avoid shaking or jumping phenomenon.

[0004] Since the door body needs to move left and right along the track frequently, in order to keep the door body stable and noiseless during left and right movement, it is necessary to provide the single-wheel sliding wheel assembly on the left and right sides of the door body to realize the bidirectional damping function, which increases the complexity and manufacturing cost of the overall door and window system. In order to solve this problem, the inventor of the present application has tried to improve the single-wheel sliding wheel assembly by providing a sliding wheel at each end of the clamp seat and a push block at each end of the damper to cooperate with the two stop blocks of the track. However, if the door body and the track are inclined during the movement of the door body along the track, the sliding wheel at one end of the clamp seat is prone to jumping, and the push block at one end of the damper will be difficult to cooperate with the stop block or the hook on the track, which is difficult to provide stable bidirectional damping effect, and may even cause the damper to fail or be damaged.

[0005] Therefore, in order to make the sliding wheel assembly realize the bidirectional damping function through a single damping pipe, have the adjusting function to adapt to the door and window system of different sizes and installation conditions, and still maintain stable bidirectional damping effect when the inclination between the door body and the track occurs, the inventor of the present application previously provided a Chinese patent with publication number "CN222879494U" and the name "Sliding wheel assembly and door and window system comprising the same", which comprises a shell, a first inner shell, a second inner shell, a damping assembly, a first pulley and a second pulley; the first inner shell is movably connected to the shell up and down, and the second inner shell is movably connected to the shell up and down; the first pulley is rotatably arranged in the first inner shell, and the second pulley is rotatably arranged in the second inner shell; the damping assembly comprises a first driving block, a second driving block and a damping pipe, the first driving block and the second driving block are rotatably connected to both ends of the damping pipe respectively, and the first driving block is slidably connected to the first inner shell, and the second driving block is slidably connected to the second inner shell. However, in the use process of the sliding wheel assembly, since the first inner shell and the second inner shell need to move up and down relative to each other, the connection of the first driving block and the second driving block with both ends of the damping pipe needs to be realized through the connection of the waist-shaped groove and the shaft, and the shaft is rotatably connected with the waist-shaped groove to adapt to the relative displacement between the first inner shell and the second inner shell, so as to adjust the position and posture of the first driving block and the second driving block. However, this adaptive structure has the problems of easy damage and instability. SUMMARY

[0006] In order to overcome at least one of the defects of the prior art described above, the present application provides a sliding wheel assembly and a door and window system comprising the same, which can realize bidirectional damping function through a single damper, has height adjusting function to adapt to the door and window system of different sizes and installation conditions, and still maintains stable bidirectional damping effect when the inclination between the door body and the track occurs, while improving the structural stability and durability of the entire sliding wheel assembly.

[0007] The technical scheme adopted by the present application to solve the problems is: A sliding wheel assembly, comprising: an outer shell; an inner shell for sliding connection with a track, the inner shell being movably arranged in the outer shell in an up-down direction, a first guide structure and a second guide structure being arranged between the outer shell and the inner shell; a damping assembly comprising a damper and two push blocks, the damper being arranged in the inner shell, the two push blocks being respectively arranged at two ends of the damper; the first guide structure comprising a first shaft body, a first guide slot and a second guide slot, the first guide slot being arranged in the outer shell, the second guide slot being arranged at a first end of the inner shell, the first guide slot and the second guide slot intersecting with each other; a first included angle being formed between the first guide slot and a length direction of the outer shell, a second included angle being formed between the second guide slot and a length direction of the inner shell, the first included angle being equal to the second included angle, the first shaft body being simultaneously slidably arranged in the first guide slot and the second guide slot; the second guide structure comprising a second shaft body, a third guide slot and a fourth guide slot; the third guide slot being arranged in the outer shell, the fourth guide slot being arranged at a second end of the inner shell, the third guide slot and the fourth guide slot intersecting with each other; a third included angle being formed between the third guide slot and a length direction of the outer shell, a fourth included angle being formed between the fourth guide slot and a length direction of the inner shell, the third included angle being equal to the fourth included angle, the second shaft body being simultaneously slidably arranged in the third guide slot and the fourth guide slot.

[0008] As an optional implementation, the first guide slot and the second guide slot have equal widths, and the third guide slot and the fourth guide slot have equal widths.

[0009] As an optional implementation, the first included angle is equal to the third included angle, and the second included angle is equal to the fourth included angle.

[0010] As an optional implementation, the outer shell is provided with a sliding groove extending in the up-down direction, and the inner shell is provided with a guide column, the guide column and the sliding groove being in sliding connection; when the first end or the second end of the inner shell moves downward, the guide column provides a support point for the inner shell.

[0011] As an optional implementation, in the length direction of the inner shell, the guide column is located outside the two push blocks.

[0012] As an optional implementation, the sliding wheel assembly further comprises a first elastic member and a second elastic member; the first elastic member is arranged between the outer shell and the first end of the inner shell, and is used to provide an upward elastic force for the first end of the inner shell; the second elastic member is arranged between the outer shell and the second end of the inner shell, and is used to provide an upward elastic force for the second end of the inner shell.

[0013] As an optional implementation, the first elastic member and the second elastic member can promote the inner shell and the outer shell to be parallel to each other when neither end of the inner shell is under pressure.

[0014] As an optional implementation, the sliding wheel assembly further comprises a first pulley arranged at the first end of the inner shell, and the first end of the inner shell can move up and down relative to the outer shell under the guidance of the first guide structure when the first pulley is under pressure; and / or the sliding wheel assembly further comprises a second pulley arranged at the second end of the inner shell, and the second end of the inner shell can move up and down relative to the outer shell under the guidance of the second guide structure when the second pulley is under pressure.

[0015] As an optional implementation, the two knobs are respectively connected to the two ends of the damper, the first knob is closer to the first pulley than to the second pulley, and the highest point of the first knob is higher than the highest point of the first pulley; the second knob is closer to the second pulley than to the first pulley, and the highest point of the second knob is higher than the highest point of the second pulley.

[0016] In addition, the application also provides a door and window system comprising the sliding wheel assembly according to any one of the above embodiments.

[0017] Compared with the prior art, the application has the following beneficial effects: In the first aspect, both knobs can act on the damper to make the damper extend and retract, and the damper can provide buffering when the door body moves left or right along the track, so that only one damper can provide a bidirectional damping function for the door and window system, the structure is simple, and the production cost is low.

[0018] In the second aspect, the positions of the first end and the second end of the inner shell relative to the outer shell can be adaptively adjusted under the guidance of the first guide structure and the second guide structure, so that the height positions of the two ends of the inner shell and the two knobs can be adjusted, thereby ensuring that the sliding wheel assembly meets different size requirements, facilitating application, and also ensuring that the two knobs can stably cooperate with the two stop blocks in the track and that the inner shell can stably slide along the track when the door body and the track are inclined, avoiding the problems of unstable bidirectional damping effect, damper failure or damage caused by the inner shell jumping, the knobs failing to cooperate and the damper when the door body and the track are inclined.

[0019] In a third aspect, by arranging the first guide structure and the second guide structure between the outer shell and the inner shell, a first clamping position of a dynamic parallelogram is formed between the first guide slot and the second guide slot at all times, the axis of the first shaft body is always located at the center of the first clamping position, a second clamping position of a dynamic parallelogram is formed between the third guide slot and the fourth guide slot at all times, the axis of the second shaft body is always located at the center of the second clamping position, so that accurate guidance is provided for the relative movement between the outer shell and the inner shell, more accurate and stable movement constraints are provided for the first shaft body and the second shaft body, it is ensured that the shaft body always slides along a predetermined trajectory during movement, problems such as jamming, deviation or disengagement of the shaft body in the guide slot are effectively avoided, the reliability and stability of the guide structure are improved, and the above guide structure integrates the guiding and limiting functions in the cooperation between the guide slot and the shaft body, without the need for additional complex transmission components, ensuring the integrity of the inner shell structure (without the need to divide the inner shell into two sections), simplifying the connection between the driving block and the damper (without the need to arrange a waist-shaped groove), making the overall structure more compact, improving the structural stability and durability of the entire sliding wheel assembly, and reducing the risk of damage caused by unstable structure. At the same time, this direct and efficient cooperation mode can reduce the energy loss in the transmission process, improve the transmission efficiency, and is conducive to improving the performance of the entire device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a structural schematic view of the sliding wheel assembly of the embodiment of the present application (at this time, the outer shell and the inner shell are parallel to each other); Figure 2 is a structural schematic view of the sliding wheel assembly of the embodiment of the present application (at this time, the outer shell and the inner shell are parallel to each other); Figure 1 is a partial enlarged view of part A in Figure 3 is a structural schematic view of the sliding wheel assembly of the embodiment of the present application (at this time, the first end of the inner shell is lowered relative to the outer shell); Figure 4 is a structural schematic view of the sliding wheel assembly of the embodiment of the present application (at this time, the first end of the inner shell is lowered relative to the outer shell); Figure 3 is a partial enlarged view of part B in Figure 5 is a structural schematic view of the sliding wheel assembly of the embodiment of the present application (at this time, the second end of the inner shell is lowered relative to the outer shell); Figure 6 is a structural schematic view of the sliding wheel assembly of the embodiment of the present application (at this time, the second end of the inner shell is lowered relative to the outer shell); Figure 5 is a partial enlarged view of part C in Figure 7is an exploded structural schematic view of a sliding wheel assembly of an embodiment of the present application; Figure 8 is a schematic view of a sliding wheel assembly of an embodiment of the present application in a fitted state between a door body frame and a track; Figure 9 is a structural schematic view of a damping assembly of the sliding wheel assembly; Figure 10 is a schematic view of a sliding wheel assembly of an embodiment of the present application and a track (when the track is inclined to the horizontal plane and the door body is parallel to the horizontal plane); Figure 11 is a schematic view of a sliding wheel assembly of an embodiment of the present application and a track (when the track is parallel to the horizontal plane and the door body is inclined to the horizontal plane); Figure 12 is a schematic view of a first angle, a second angle, a third angle and a fourth angle in an embodiment of the present application.

[0022] Main figure mark explanation: 1, outer shell; 11, first guide groove; 12, third guide groove; 13, sliding groove; 2, inner shell; 21, second guide groove; 22, fourth guide groove; 23, guide column; 3, first shaft body; 4, second shaft body; 5, first pulley; 6, second pulley; 7, damping assembly; 71, damper; 711, first rotating shaft; 712, second rotating shaft; 72, actuating block; 721, first actuating block; 722, second actuating block; 8, first guide structure; 9, second guide structure; 10, first elastic member; 20, second elastic member; 30, track; 40, door body frame; a, first angle; b, second angle; c, third angle; d, fourth angle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] And, the above-mentioned partial terms, in addition to can be used to express the orientation or positional relationship, also can be used to express other meanings, for example, the term "upper" in some cases can also be used to express a certain dependent relationship or connection relationship. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0026] In addition, the terms "mounting", "setting", "provided with", "connecting", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0028] The technical solutions of the present application will be further described below in conjunction with the embodiments and drawings.

[0029] Please refer to Figures 1 to 9 , the embodiment of the present application provides a sliding wheel assembly, which comprises an outer shell 1, an inner shell 2 and a damping assembly 7; the outer shell 1 is used for fixing on the door body frame 40 to provide a mounting base for the entire sliding wheel assembly; the inner shell 2 is used for sliding connection with the track, and is movably arranged in the outer shell 1; a first guide structure 8 and a second guide structure 9 are arranged between the outer shell 1 and the inner shell 2, and are used for accurately guiding the movement of the two ends of the inner shell 2 to ensure the stability and accuracy of the movement of the inner shell 2; the damping assembly 7 comprises a damper 71 and two movable blocks 72, the damper 71 is arranged in the inner shell 2, and the two movable blocks 72 are respectively arranged at the two ends of the damper 71; the two movable blocks 72 are respectively used for cooperating with two stop blocks arranged on the track 30, and the two movable blocks 72 can act on the damper 71 to make the damper 71 extend and retract, thereby providing buffering during the movement of the door body along the track 30 to the left or to the right, and realizing the bidirectional damping function. As shown in Figure 2 , Figure 4 , Figure 7 and Figure 12 , the first guide structure 8 comprises a first shaft body 3, a first guide groove 11 and a second guide groove 21, the first guide groove 11 is arranged on the outer shell 1, the second guide groove 21 is arranged on the first end of the inner shell 2, and the first guide groove 11 and the second guide groove 21 intersect with each other. The first guide slot 11 forms a first included angle a with the length direction of the outer shell 1, the second guide slot 21 forms a second included angle b with the length direction of the inner shell 2, the first included angle a is equal to the second included angle b, the first shaft body 3 is simultaneously slidably arranged in the first guide slot 11 and the second guide slot 21, a first clamping position of a dynamically changing parallelogram is always formed between the first guide slot 11 and the second guide slot 21, and the axis of the first shaft body 3 is always located at the center of the first clamping position; when the first end of the inner shell 2 is pressed, the first end of the inner shell 2 can move up and down relative to the outer shell 1 under the guidance of the first guide structure 8, so as to adjust the height of the first end of the inner shell 2.

[0030] As shown in Figure 6 , Figure 7 and Figure 12 , the second guide structure 9 comprises a second shaft body 4, a third guide slot 12 and a fourth guide slot 22; the third guide slot 12 is arranged on the outer shell 1, the fourth guide slot 22 is arranged on the second end of the inner shell 2, and the third guide slot 12 and the fourth guide slot 22 intersect with each other; The third guide slot 12 forms a third included angle c with the length direction of the outer shell 1, the fourth guide slot 22 forms a fourth included angle d with the length direction of the inner shell 2, the third included angle c is equal to the fourth included angle d, the second shaft body 4 is simultaneously slidably arranged in the third guide slot 12 and the fourth guide slot 22, a second clamping position of a dynamically changing parallelogram is always formed between the third guide slot 12 and the fourth guide slot 22, and the axis of the second shaft body 4 is always located at the center of the second clamping position; when the second end of the inner shell 2 is pressed, the second end of the inner shell 2 can move up and down relative to the outer shell 1 under the guidance of the second guide structure 9, so as to adjust the height of the second end of the inner shell 2.

[0031] It should be noted that the first clamping position is a parallelogram formed by the straight lines where the two sides of the first guide slot 11 and the two sides of the second guide slot 21 are located, and the shape of the first clamping position is not affected by the shape of the end of the guide slot. Moreover, in the planar projection along the axial direction of the first shaft body 3, the first shaft body 3 is always tangent to the two sides of the first guide slot 11 and the two sides of the second guide slot 21 at the same time.

[0032] It should be noted that the second clamping position is a parallelogram formed by the straight lines where the two sides of the third guide slot 12 and the two sides of the fourth guide slot 22 are located, and the shape of the second clamping position is not affected by the shape of the end of the guide slot. Moreover, in the planar projection along the axial direction of the second shaft body 4, the second shaft body 4 is always tangent to the two sides of the third guide slot 12 and the two sides of the fourth guide slot 22 at the same time.

[0033] The sliding wheel assembly provided by the embodiment of the present application has the following beneficial technical effects: In the first aspect, the two push blocks 72 can act on the damper 71 to make the damper 71 extend and retract, and the damper 71 can provide buffering when the door body moves left or right along the track 30, so that only one damper 71 can provide a bidirectional damping function for the door and window system, the structure is simple, and the production cost is low.

[0034] In the second aspect, the positions of the first end and the second end of the inner shell 2 relative to the outer shell 1 can be adaptively adjusted under the guidance of the first guide structure 8 and the second guide structure 9, so that the height positions of the two ends of the inner shell 2 and the two push blocks 72 can be adjusted, thereby ensuring that the sliding wheel assembly meets different size requirements, facilitates application, and also ensures that the two push blocks 72 can stably cooperate with the two stop blocks in the track 30 and the inner shell 2 can stably slide along the track 30 when the door body and the track 30 are inclined, avoiding problems such as unstable bidirectional damping effect, invalidation or damage of the damper 71 caused by the inner shell 2 jumping and the push blocks 72 failing to cooperate when the door body and the track 30 are inclined.

[0035] In the third aspect, by arranging the first guide structure 8 and the second guide structure 9 between the outer shell 1 and the inner shell 2, the first shaft body 3 is limited in the first clamping position in the parallelogram shape, and the second shaft body 4 is limited in the second clamping position in the parallelogram shape, which can provide precise guidance for the relative movement between the inner shell 2 and the outer shell 1, provide more accurate and stable movement constraints for the first shaft body 3 and the second shaft body 4, and ensure that the shaft body always slides along the predetermined track during movement, effectively avoiding problems such as jamming, deviation or falling out of the shaft body in the guide groove, improving the reliability and stability of the guide structure, and the above guide structure integrates the guiding and limiting functions in the cooperation between the guide groove and the shaft body, without the need for additional complex transmission components, ensuring the integrity of the inner shell 2 structure (without the need to divide the inner shell 2 into two sections), simplifying the connection between the push block 72 and the damper 71 (without the need to arrange a waist-shaped groove), making the overall structure more compact, improving the structural stability and durability of the entire sliding wheel assembly, and reducing the risk of damage caused by unstable structure. At the same time, this direct and efficient cooperation mode can reduce energy loss during transmission, improve transmission efficiency, and help improve the performance of the entire device.

[0036] It can be understood that the length direction of the outer shell 1 is also the direction in which the outer shell 1 moves with the door body. The length direction of the inner shell 2 is also the sliding direction of the inner shell 2 on the track.

[0037] As Figures 1 to 7As shown, in an embodiment, the widths of the first guide groove 11 and the second guide groove 21 are equal, and the widths of the third guide groove 12 and the fourth guide groove 22 are equal, so that the first clamping position and the second clamping position can always maintain a dynamic rhombus shape. This design ensures that the constraint on the first shaft body 3 when sliding in the first guide groove 11 and the second guide groove 21, and the constraint on the second shaft body 4 when sliding in the third guide groove 12 and the fourth guide groove 22, are uniform. The shaft body will not produce unnecessary shaking or jamming due to the difference in the width of the guide groove. This specific shape helps to more stably and accurately clamp the first shaft body 3 and the second shaft body 4, making the relative movement between the inner shell 2 and the outer shell 1 more smooth and smooth, greatly improving the accuracy of movement.

[0038] As shown in Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 12 , in an embodiment, the first angle a and the third angle c are equal, and the second angle b and the fourth angle d are equal. In this way, a symmetrical and regular mechanical structure relationship is formed between the first guide structure 8 and the second guide structure 9. This precise angle matching allows the movement trajectory and stress state of the two ends of the inner shell to be highly coordinated when moving up and down relative to the outer shell. This effectively avoids unbalanced movement caused by angle differences, reduces friction, jamming and other abnormal situations during movement, significantly improves the stability and smoothness of the overall device movement, and further enhances the reliability and stability of the device operation.

[0039] It should be noted that in some other embodiments, the widths of the first guide groove 11 and the second guide groove 21 can not be equal, and the widths of the third guide groove 12 and the fourth guide groove 22 can not be equal, which can be selected according to actual needs.

[0040] It should be noted that in some other embodiments, the first angle a and the third angle c can not be equal, and the second angle b and the fourth angle d can not be equal, which can be selected according to actual needs.

[0041] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in an embodiment, the outer shell 1 is provided with a sliding groove 13 extending in the up-down direction, the inner shell 2 is provided with a guide column 23, the guide column 23 and the sliding groove 13 are in sliding connection, and the guide column 23 can rotate relative to the sliding groove 13; when the first end or the second end of the inner shell 2 moves up and down relative to the outer shell 1, the guide column 23 provides a support point for the inner shell 2, so that this support point can bear part of the weight of the inner shell 2 and various forces generated in the movement process, such as inertial force, friction force, etc., to prevent the inner shell 2 from tilting, shaking or falling during movement, etc., to ensure the stability of the movement of the inner shell 2 and the stability of the structure, and when the inner shell 2 encounters some small external force interference or needs to adapt to different working scenes during up-down movement, the posture of the guide column 23 can be adjusted to adjust its own posture, avoiding the movement jam or structure damage caused by rigid connection, and improving the movement flexibility of the whole device.

[0042] It can be understood that the position between the two drive blocks 72 on the inner shell 2 needs to be used to set the damping assembly 7 and related components, and it is not convenient to pass through the guide column 23, in order to solve the above problem, as shown in Figure 5 As shown, in an embodiment, in the length direction of the inner shell 2, the guide column 23 is located outside the two drive blocks 72, so as to avoid the guide column 23 affecting the installation and action of the damping assembly 7 and related components.

[0043] Preferably, the guide column 23 can be arranged at a position of 1 / 8 to 1 / 4 of the length of the inner shell 2 to avoid the damping assembly 7 and related components.

[0044] It should be noted that in some other embodiments, the position of the sliding groove 13 provided on the outer shell 1 can be set according to actual conditions, for example, the sliding groove 13 can be but not limited to arranged at a position of 1 / 6 or 1 / 7 or 4 / 9 of the length of the outer shell 1.

[0045] As shown in Figure 7As shown, in an embodiment, the sliding wheel assembly further comprises a first elastic member 10 and a second elastic member 20; the first elastic member 10 is arranged between the first end of the outer shell 1 and the inner shell 2, and is used to provide buffering for the relative movement between the first end of the outer shell 1 and the inner shell 2, and to provide an upward elastic force to the first end of the inner shell 2; the second elastic member 20 is arranged between the second end of the outer shell 1 and the inner shell 2, and is used to provide buffering for the relative movement between the second end of the outer shell 1 and the inner shell 2, and to provide an upward elastic force to the second end of the inner shell 2. In this way, first, the buffering effect of the elastic members helps to maintain the continuity of the relative movement between the inner shell 2 and the outer shell 1, and when encountering small obstacles or changes in movement resistance, the elastic members can timely adjust the position and movement state of the inner shell 2, preventing the occurrence of stuttering or jumping phenomena. Second, the first elastic member 10 and the second elastic member 20 can automatically adjust their relative positions according to the relative movement between the inner shell 2 and the outer shell 1; when one end of the inner shell 2 is subjected to a larger external force, the corresponding elastic member will be compressed, while the elastic member at the other end will be stretched accordingly, thereby maintaining the balance and stability of the entire inner shell 2; this automatic adjustment function enables the device to adapt to different working loads and environmental conditions, improving the adaptability and reliability of the device. Third, during actual manufacturing and assembly, there will inevitably be some errors. The arrangement of the elastic members can compensate for these errors to some extent, ensuring that the relative position relationship between the inner shell 2 and the outer shell 1 meets the design requirements; for example, if the inner shell 2 is slightly tilted during assembly, the elastic members can adjust the position of the inner shell 2 through elastic deformation, restoring it to the normal state and ensuring the normal operation of the device.

[0046] As shown, Figures 1 to 7 In an embodiment, the sliding wheel assembly further comprises a first pulley 5 arranged at the first end of the inner shell 2, which is used to be in sliding connection with the track; when the first pulley 5 is pressed, the first end of the inner shell 2 can move up and down relative to the outer shell 1 under the guidance of the first guide structure 8, so as to adjust the height position of the first pulley 5; the sliding wheel assembly further comprises a second pulley 6 arranged at the second end of the inner shell 2, which is used to be in sliding connection with the track; when the second pulley 6 is pressed, the second end of the inner shell 2 can move up and down relative to the outer shell 1 under the guidance of the second guide structure 9, so as to adjust the height position of the second pulley 6.

[0047] It should be noted that in some other embodiments, the first pulley 5 and the second pulley 6 can also be replaced by other sliding members such as sliding blocks, etc., according to actual needs.

[0048] As shown, Figure 1As shown in the drawings, in one embodiment, when neither end of the inner shell (2) is under pressure (i.e. neither the first pulley 5 nor the second pulley 6 is under pressure), the first elastic member 10 and the second elastic member 20 can cause the inner shell 2 and the outer shell 1 to be parallel to each other. In this way, the first elastic member 10 and the second elastic member 20 can ensure that the inner shell 2 and the outer shell 1 are parallel to each other in the absence of external force acting on the pulleys, which provides a stable initial structural configuration for the entire sliding pulley assembly. The stable initial configuration helps to reduce internal stress caused by structural deformation, reduces the risk of fatigue damage due to stress accumulation during long-term use, and prolongs the service life of the device.

[0049] As shown in the drawings, Figure 1 , Figure 3 , Figure 5 and Figure 8 As shown in the drawings, in one embodiment, the actuator block 72 includes a first actuator block 721 and a second actuator block 722, which are respectively connected to the two ends of the damper 71; the first actuator block 721 is closer to the first pulley 5 than the second pulley 6, and the highest point of the first actuator block 721 is higher than the highest point of the first pulley 5; the second actuator block 722 is closer to the second pulley 6 than the first pulley 5, and the highest point of the second actuator block 722 is higher than the highest point of the second pulley 6. In this way, the presence of the actuator blocks 721 and 722 can prevent the blocks in the track 30 from affecting the sliding of the first pulley 5 and the second pulley 6, so that the first pulley 5 and the second pulley 6 can stably slide along the track 30, and the first actuator block 721 and the second actuator block 722 can stably cooperate with the two blocks in the track 30, respectively.

[0050] Specifically, as shown in the drawings, Figure 9 the first actuator block 721 is rotatably connected to the first end of the damper 71 through a first rotating shaft 711, and the second actuator block 722 is rotatably connected to the second end of the damper 71 through a second rotating shaft 712. It can be understood that the first actuator block 721 and the second actuator block 722 will rotate between the unhooking position and the hooking position during operation. Due to the presence of the first guide structure 8 and the second guide structure 9, the connection between the first actuator block 721 and the first end of the damper 71 does not need to be provided with a waist-shaped groove, and the connection between the second actuator block 722 and the second end of the damper 71 does not need to be provided with a waist-shaped groove.

[0051] As shown in the drawings, Figure 8 , Figure 10 and Figure 11As shown, this application embodiment also provides a door and window system, including the sliding wheel assembly as described in any of the above embodiments. The door and window system includes a door body and a track 30. A first stop and a second stop are spaced apart in the track 30 of the door and window system. The outer shell 1 is fixed to the door body. A first actuating block 721 is used to cooperate with the first stop in the track 30. The first actuating block 721 is actuated by the first stop, thereby causing the damper 71 to extend and retract. A second actuating block 722 is used to cooperate with the second stop in the track 30. The second actuating block 722 is actuated by the second stop, thereby causing the damper 71 to extend and retract. The first pulley 5 and the second pulley 6 are used to slide along the track 30.

[0052] When the door moves to the left along track 30, the sliding wheel assembly will move to the left along with the door. When it reaches a certain position, the first actuating block 721 on the sliding wheel assembly will be blocked by the first stop block, so that the first actuating block 721 can no longer move. The sliding wheel assembly and the door will continue to move under the action of inertia. At this time, the damper 71 will have a damping buffering effect, so that the door moves at a certain speed and slowly approaches the left door frame.

[0053] When the door moves to the right along track 30, the sliding wheel assembly will move to the right along with the door. When it reaches a certain position, the second actuating block 722 on the sliding wheel assembly will be blocked by the second stop block on the guide rail, so that the second actuating block 722 can no longer move. The sliding wheel assembly and the door will continue to move under the action of inertia. At this time, the damper 71 will have a damping buffering effect, so that the door moves at a certain speed and slowly approaches the right door frame.

[0054] It should be noted that, Figure 10 The FF reference line in the diagram is a horizontal reference line, and the double-dotted line is the imaginary outline of track 30. Figure 10 The diagram shows the engagement state of the sliding wheel assembly and the track 30 when the track 30 is inclined relative to the horizontal plane and the door body is parallel to the horizontal plane. At this time, the first pulley 5 and the second pulley 6 are both in contact with the guide channel of the track 30 so that they can slide stably along the track 30. The first actuating block 721 and the second actuating block 722 are both at a suitable height so that they can cooperate with the stop block in the track 30.

[0055] It should be noted that, Figure 11 The GG reference line in the diagram is a horizontal reference line, and the double-dotted line is the imaginary outline of track 30. Figure 11 The diagram shows the engagement state of the sliding wheel assembly and the track 30 when the track 30 remains horizontal and the door body is tilted relative to the horizontal plane. At this time, the first pulley 5 and the second pulley 6 are both in contact with the guide channel of the track 30 so that they can slide stably along the track 30. The first actuating block 721 and the second actuating block 722 are both at a suitable height so that they can engage with the stop block in the track 30.

[0056] In summary, the sliding wheel assembly and the door and window system comprising the same disclosed by the present application can bring at least the following beneficial technical effects: (1) The first shaft body 3 is limited in the parallelogram-shaped first clamping position, and the second shaft body 4 is limited in the parallelogram-shaped second clamping position, which can provide accurate guidance for the relative movement between the inner shell 2 and the outer shell 1, and provide more accurate and stable movement constraints for the first shaft body 3 and the second shaft body 4, effectively avoiding problems such as jamming, deviation or falling out of the shaft body in the guide groove; (2) The first guide structure 8 and the second guide structure 9 integrate the guiding and limiting functions in the cooperation of the guide groove and the shaft body, without the need for additional complex transmission components, ensuring the integrity of the inner shell 2 structure, simplifying the connection between the push block 72 and the damper 71, making the overall structure more compact, improving the structural stability and durability of the entire sliding wheel assembly, and reducing the risk of damage caused by unstable structure; (3) Both push blocks 72 can act on the damper 71 to make the damper 71 extend and retract, and the damper 71 can provide buffering during the movement of the door body along the track 30 to the left or to the right, so that only one damper 71 can provide bidirectional damping function for the door and window system, with simple structure and low production cost (4) The positions of the first end and the second end of the inner shell 2 relative to the outer shell 1 can be adaptively adjusted, so that the height positions of the two ends of the inner shell 2 and the two push blocks 72 can be adjusted, thereby ensuring that the sliding wheel assembly meets different size requirements, facilitating application, and also ensuring that the two push blocks 72 can stably cooperate with the two stop blocks in the track 30 when the door body and the track 30 are inclined; The technical means disclosed in the present application scheme is not limited to the technical means disclosed in the above embodiments, but also includes the technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A sliding wheel assembly, characterized in that, include: Outer shell (1); The inner shell (2) is used to slide with the track. The inner shell (2) is movably disposed inside the outer shell (1). A first guide structure (8) and a second guide structure (9) are provided between the outer shell (1) and the inner shell (2). The damping assembly (7) includes a damper (71) and two actuating blocks (72), wherein the damper (71) is disposed in the inner shell (2), and the two actuating blocks (72) are respectively disposed at both ends of the damper (71); The first guide structure (8) includes a first shaft (3), a first guide groove (11) and a second guide groove (21). The first guide groove (11) is disposed on the outer shell (1), and the second guide groove (21) is disposed on the first end of the inner shell (2). The first guide groove (11) and the second guide groove (21) intersect each other. The first guide groove (11) forms a first included angle with the length direction of the outer shell (1), and the second guide groove (21) forms a second included angle with the length direction of the inner shell (2). The first included angle and the second included angle are equal, and the first shaft (3) slides simultaneously in the first guide groove (11) and the second guide groove (21). The second guide structure (9) includes a second shaft (4), a third guide groove (12) and a fourth guide groove (22); the third guide groove (12) is disposed on the outer shell (1), and the fourth guide groove (22) is disposed on the second end of the inner shell (2); the third guide groove (12) and the fourth guide groove (22) intersect each other. The third guide groove (12) forms a third included angle with the length direction of the outer shell (1), and the fourth guide groove (22) forms a fourth included angle with the length direction of the inner shell (2). The third included angle and the fourth included angle are equal, and the second shaft (4) slides simultaneously in the third guide groove (12) and the fourth guide groove (22).

2. The sliding wheel assembly according to claim 1, characterized in that, The widths of the first guide groove (11) and the second guide groove (21) are equal, and the widths of the third guide groove (12) and the fourth guide groove (22) are equal.

3. The sliding wheel assembly according to claim 1, characterized in that, The first included angle and the third included angle are equal, and the second included angle and the fourth included angle are equal.

4. The pulley assembly according to any one of claims 1-3, characterized in that, The outer shell (1) is provided with a sliding groove (13) extending in the vertical direction, and the inner shell (2) is provided with a guide post (23). The guide post (23) and the sliding groove (13) are slidably connected. When the first end or the second end of the inner shell (2) moves downward, the guide post (23) provides a support point for the inner shell (2).

5. The sliding wheel assembly according to claim 4, characterized in that, Along the length of the inner shell (2), the guide post (23) is located outside the two actuating blocks (72).

6. The sliding wheel assembly according to claim 1, characterized in that, The sliding wheel assembly further includes a first elastic element (10) and a second elastic element (20); the first elastic element (10) is disposed between the outer shell (1) and the inner shell (2) at a first end, and the first elastic element (10) is used to provide an upward elastic force to the first end of the inner shell (2); the second elastic element (20) is disposed between the outer shell (1) and the inner shell (2) at a second end, and the second elastic element (20) is used to provide an upward elastic force to the second end of the inner shell (2).

7. The sliding wheel assembly according to claim 6, characterized in that, When both ends of the inner shell (2) are not under pressure, the first elastic element (10) and the second elastic element (20) can make the inner shell (2) and the outer shell (1) parallel to each other.

8. The sliding wheel assembly according to claim 1, characterized in that, The sliding wheel assembly further includes a first pulley (5), which is disposed at the first end of the inner shell (2). When the first pulley (5) is pressed, under the guidance of the first guide structure (8), the first end of the inner shell (2) can move up and down relative to the outer shell (1); and / or, The sliding wheel assembly also includes a second pulley (6), which is disposed at the second end of the inner shell (2). When the second pulley (6) is pressed, under the guidance of the second guide structure (9), the second end of the inner shell (2) can move up and down relative to the outer shell (1).

9. The sliding wheel assembly according to claim 8, characterized in that, The actuating block (72) includes a first actuating block (721) and a second actuating block (722), and the first actuating block (721) and the second actuating block (722) are respectively connected to the two ends of the damper (71); The first actuating block (721) is closer to the first pulley (5) relative to the second pulley (6), and the highest point of the first actuating block (721) is higher than the highest point of the first pulley (5); The second actuating block (722) is closer to the second pulley (6) relative to the first pulley (5), and the highest point of the second actuating block (722) is higher than the highest point of the second pulley (6).

10. A door and window system, characterized in that, Includes the pulley assembly as described in any one of claims 1-9.

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