Sliding wheel assembly and door and window system comprising same

Abstract

The utility model discloses a sliding wheel assembly and a door and window system comprising the same. The pulley assembly includes: a housing; the first inner shell is vertically and movably connected to the outer shell; the second inner shell is vertically and movably connected to the outer shell; the first pulley is arranged in the first inner shell; the second pulley is arranged in the second inner shell, and the first pulley and the second pulley are used for sliding along the track; the damping assembly comprises a first shifting block, a second shifting block and a damping tube, the first shifting block and the second shifting block are rotationally connected to the two ends of the damping tube respectively, the first shifting block is slidably connected to the first inner shell, and the second shifting block is slidably connected to the second inner shell. Therefore, the height positions of the first shifting block, the second shifting block, the first pulley and the second pulley can be adjusted, so that the first shifting block and the second shifting block can be ensured to be stably matched with the check block in the track when the door body and the track are inclined, and the first pulley and the second pulley can be ensured to stably slide along the track.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hardware accessories, in particular to a sliding wheel assembly and a door and window system comprising the sliding wheel assembly. Background Art

[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. The sliding wheel assembly is installed on the door body and can provide the door body with guiding function and damping function at the same time. This sliding wheel assembly includes a pulley and a toggle block. However, the height of both the pulley and the toggle 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 toggle block may not cooperate with the block on the track.

[0003] In order to solve the above problems, a Chinese patent with publication number CN204343864U discloses a single-wheel sliding wheel assembly with a damper, which includes an inner clamp, a clamp seat, and an outer clamp from the inside to the outside; the inner clamp is equipped with a damper assembly, the damper assembly includes a fixed seat, a damper and a tension spring, the radial through groove of the fixed seat is equipped with a damper toggle plate, the damper toggle plate extends out of the lower end of the inner clamp, and the damper toggle plate is provided with a "7"-shaped fixing hook; the clamp seat is provided with a pair of sliding wheel assembly holes, and the sliding wheels are assembled in the pair of sliding wheel assembly holes; the outer clamp is provided with more than two pairs of parallel waist-shaped holes, the clamp seat is provided with more than two pairs of pin holes corresponding to the waist-shaped holes, and the inner clamp is provided with more than two 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 on 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. The single-wheel sliding wheel assembly is easy to install and adjust, can realize synchronous damping, and has a good damping effect, thereby ensuring the smoothness of the door leaf operation and avoiding shaking or jumping.

[0004] Since the door body needs to frequently move left and right along the track, in order to make the door body remain stable and noiseless during the movement to the left and right, it is usually necessary to respectively arrange the above-mentioned single-wheel sliding wheel assembly on the left and right sides of the door body to realize the two-way damping function, which will increase the overall complexity and manufacturing cost of the door and window system. In order to solve this problem, the utility model inventor has tried to make improvements on the basis of the above-mentioned single-wheel sliding wheel assembly, respectively arrange a sliding wheel at both ends of its clamping seat, and respectively arrange a toggle block at both ends of its damper to cooperate with the two blocks of the track respectively. However, in the process of the door body moving along the track, if there is an inclination between the door body and the track, the sliding wheel at one end of the clamping seat is prone to jumping, and the toggle block at one end of the damping tube will be difficult to cooperate with the block or hook on the track, making it difficult to provide a stable two-way damping effect, and may even cause the damper to fail or be damaged. Utility Model Content

[0005] In order to overcome at least one of the defects described in the above-mentioned prior art, the utility model provides a sliding wheel assembly and a door and window system including the sliding wheel assembly. The sliding wheel assembly can achieve a two-way damping function through a single damping tube, and at the same time has an adjustment function to adapt to door and window systems of different sizes and installation conditions, and can maintain a stable two-way damping effect when there is a tilt between the door body and the track.

[0006] The technical solution adopted by the utility model to solve the problem is:

[0007] The sliding wheel assembly comprises: an outer shell; a first inner shell movably connected to the outer shell up and down; a second inner shell movably connected to the outer shell up and down; a first pulley arranged in the first inner shell; a second pulley arranged in the second inner shell, the first pulley and the second pulley are used to slide along a track; a damping component comprises a first toggle block, a second toggle block and a damping tube, the first toggle block and the second toggle block are respectively rotatably connected to the two ends of the damping tube, and the first toggle block is slidably connected to the first inner shell, and the second toggle block is slidably connected to the second inner shell.

[0008] According to some embodiments of the utility model, one of the first toggle block and the damping tube is provided with a first waist-shaped groove, and the other is provided with a first shaft body, and the first shaft body is rotatably connected to the first waist-shaped groove; the first toggle block is rotatably connected to the first connecting end of the damping tube through the cooperation of the first waist-shaped groove and the first shaft body.

[0009] According to some embodiments of the utility model, one of the second toggle block and the damping tube is provided with a second waist-shaped groove, and the other is provided with a second shaft body, and the second shaft body is rotatably connected to the second waist-shaped groove; the second toggle block is rotatably connected to the second connecting end of the damping tube through the cooperation of the second waist-shaped groove and the second shaft body.

[0010] According to some embodiments of the utility model, one of the outer shell and the first inner shell is provided with a first guide groove, and the other is provided with a first guide column, the first guide column is slidably connected in the first guide groove, and the first inner shell can move up and down along the extension direction of the first guide groove.

[0011] According to some embodiments of the utility model, one of the outer shell and the second inner shell is provided with a second guide groove, and the other is provided with a second guide column, the second guide column is slidably connected in the second guide groove, and the second inner shell can move up and down along the extension direction of the second guide groove.

[0012] According to some embodiments of the present invention, both the first guide groove and the second guide groove are inclined to a horizontal plane, and the first guide groove and the second guide groove have the same extension direction.

[0013] According to some embodiments of the present invention, the highest point of the first toggle block is higher than the highest point of the first pulley, and the highest point of the second toggle block is higher than the highest point of the second pulley.

[0014] According to some embodiments of the present invention, the first inner shell has a first end, the second inner shell has a second end, and the first end and the second end are opposite to each other; when the first inner shell and the second inner shell are in an initial position, an adjustment gap is formed between the first end and the second end to allow the first inner shell and the second inner shell to move relative to each other.

[0015] According to some embodiments of the utility model, the adjustment interval includes a first interval, a second interval and a third interval connected in sequence, the first interval and the third interval extend vertically, the second interval extends horizontally, and the first interval and the third interval are respectively located on the upper and lower sides of the second interval.

[0016] According to some embodiments of the present utility model, at least two first guide grooves are provided, at least two first guide posts are provided, and the first guide posts and the first guide grooves are slidably connected in a one-to-one correspondence.

[0017] According to some embodiments of the present invention, at least two second guide grooves are provided, at least two second guide posts are provided, and the second guide posts and the second guide grooves are slidably connected in a one-to-one correspondence.

[0018] According to some embodiments of the utility model, the sliding wheel assembly also includes an elastic member; the elastic member is arranged between the outer shell and the first inner shell, and the elastic member is used to provide a buffer for the relative movement between the first inner shell and the outer shell, and / or the elastic member is arranged between the outer shell and the second inner shell, and the elastic member is used to provide a buffer for the relative movement between the second inner shell and the outer shell.

[0019] According to some embodiments of the present invention, the sliding wheel assembly further includes a guide wheel, and the guide wheel is rotatably connected to the first inner shell and / or the second inner shell.

[0020] In addition, the utility model also provides a door and window system, comprising the sliding wheel assembly as described above, and also comprising a door body, wherein the shell is connected to the door body.

[0021] In summary, the sliding wheel assembly and the door and window system including the sliding wheel assembly provided by the utility model have at least the following technical effects:

[0022] On the one hand, the first toggle block and the second toggle block can both act on the damping tube to make the damping tube expand and contract. The damping tube can provide buffering when the door body moves to the left or right along the track. In this way, only one damping tube can provide a two-way damping function for the door and window system, with a simple structure and low production cost. On the other hand, the first inner shell and the second inner shell can both move up and down relative to the outer shell. In this way, the relative position of the first inner shell and the outer shell and the relative position of the second inner shell and the outer shell can be adjusted, thereby adjusting the height position of the first toggle block, the second toggle block, the first pulley and the second pulley, thereby ensuring that the sliding wheel assembly meets different size requirements and is convenient for application. In addition, when there is a tilt between the door body and the track, it can also ensure that the first toggle block and the second toggle block can stably cooperate with the block in the track, and ensure that the first pulley and the second pulley can stably slide along the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the sliding wheel assembly (the first inner shell and the second inner shell are in the initial position) of an embodiment of the utility model;

[0024] Figure 2 for Figure 1 A partial enlarged view of the middle A part;

[0025] Figure 3 It is a structural schematic diagram of the sliding wheel assembly (the first inner shell moves downward relative to the outer shell) of an embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the sliding wheel assembly (the second inner shell moves downward relative to the outer shell) of an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the damping assembly of an embodiment of the utility model;

[0028] Figure 6 for Figure 5 A partial enlarged view of the middle B part;

[0029] Figure 7 for Figure 5 A partial enlarged view of the middle C part;

[0030] Figure 8 It is a schematic diagram of the matching state of the sliding wheel assembly and the track in an embodiment of the utility model;

[0031] Fig. 9 It is a schematic diagram of the matching state of the sliding wheel assembly and the track (when the track is inclined to the horizontal plane) of the embodiment of the utility model;

[0032] Fig.10It is a schematic diagram of the matching state of the sliding wheel assembly, the track and the door body (when the track is parallel to the horizontal plane and the door body is inclined to the horizontal plane) according to an embodiment of the utility model.

[0033] The meanings of the reference numerals are as follows:

[0034] 1. Outer shell; 11. First guide groove; 12. Second guide groove; 2. First inner shell; 21. First guide column; 22. First end; 23. First extension block; 24. First slide groove; 3. Second inner shell; 31. Second guide column; 32. Second end; 33. Second extension block; 34. Second slide groove; 4. Damping assembly; 41. First toggle block; 411. First waist-shaped groove; 412. First slider; 42. Second toggle block; 421. Second waist-shaped groove; 422. Second slider; 43. Damping tube; 431. Tube body; 432. Telescopic rod; 433. First connector; 434. Second connector; 435. First shaft body; 436. Second shaft body; 5. Adjustment interval; 51. First interval; 52. Second interval; 53. Third interval; 6. First pulley; 7. Second pulley; 8. Track; 9. Door body. DETAILED DESCRIPTION

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] The present invention is further described in detail below with reference to the accompanying drawings. It should be noted that: Figure 1 , Figure 3 and Figure 4 The solid lines in the figure represent visible contours, and the dashed lines represent invisible contours.

[0039] See also Figures 1 to 5The present embodiment discloses a sliding wheel assembly, which includes an outer shell 1, a first inner shell 2, a second inner shell 3, a damping component 4, a first pulley 6 and a second pulley 7; the first inner shell 2 is movably connected to the outer shell 1 up and down, and the second inner shell 3 is movably connected to the outer shell 1 up and down; the first pulley 6 is rotatably arranged on the first inner shell 2, and the second pulley 7 is rotatably arranged on the second inner shell 3; the damping component 4 includes a first toggle block 41, a second toggle block 42 and a damping tube 43, the first toggle block 41 and the second toggle block 42 are rotatably connected to the two ends of the damping tube 43 respectively, and the first toggle block 41 is slidably connected to the first inner shell 2, and the second toggle block 42 is slidably connected to the second inner shell 3.

[0040] Specifically, the door and window system includes a door body and a track. A first block and a second block are arranged at intervals in the track of the door and window system. The outer shell 1 is used to be fixed to the door body. The first toggle block 41 is used to cooperate with the first block in the track. The first toggle block 41 is acted upon by the first block so that the damping tube 43 is extended and retracted. The second toggle block 42 is used to cooperate with the second block in the track. The second toggle block 42 is acted upon by the second block so that the damping tube 43 is extended and retracted. The first pulley 6 and the second pulley 7 are used to slide along the track.

[0041] When the door body moves to the left along the track, the sliding wheel assembly will move to the left along with the door body and move to a certain position. The first toggle block 41 on the sliding wheel assembly will be blocked by the first stop block, so that the first toggle block 41 cannot continue to move, and the sliding wheel assembly and the door body continue to move under the action of inertia. At this time, the damping tube 43 has a damping and buffering effect, so that the door body does not move too fast and slowly approaches the left door frame.

[0042] When the door body moves to the right along the track, the sliding wheel assembly will move to the right along with the door body and move to a certain position. The second toggle block 42 on the sliding wheel assembly will be blocked by the second stop block on the guide rail, so that the second toggle block 42 cannot continue to move, and the sliding wheel assembly and the door body continue to move under the action of inertia. At this time, the damping tube 43 has a damping and buffering effect, so that the door body does not move too fast and slowly approaches the right door frame.

[0043] The sliding wheel assembly disclosed in this embodiment, on the one hand, the first toggle block 41 and the second toggle block 42 can act on the damping tube 43 to make the damping tube 43 expand and contract, and the damping tube 43 can provide buffering when the door body moves leftward or rightward along the track. In this way, only one damping tube 43 can provide a two-way damping function for the door and window system, the structure is simple, and the production cost is low. On the other hand, Figure 8 , Fig. 9 and Fig.10As shown, the first inner shell 2 and the second inner shell 3 can both move up and down relative to the outer shell 1, so that the relative positions of the first inner shell 2 and the outer shell 1 and the second inner shell 3 and the outer shell 1 can be adjusted, thereby adjusting the height positions of the first toggle block 41, the second toggle block 42, the first pulley 6 and the second pulley 7, thereby ensuring that the sliding wheel assembly meets different size requirements and is convenient for application, and also ensuring that the first toggle block 41 and the second toggle block 42 can stably cooperate with the block in the track when there is a tilt between the door body and the track, and ensuring that the first pulley 6 and the second pulley 7 can stably slide along the track 8.

[0044] It should be noted that Fig. 9 The DD reference line in is the horizontal reference line, and the double-dotted line is the imaginary contour line. Fig. 9 It shows the matching state of the damper and the track 8 when the track 8 is inclined relative to the horizontal plane. At this time, the first pulley 6 and the second pulley 7 both remain in contact with the guide channel of the track so that they can slide stably along the track 8, and the first toggle block 41 and the second toggle block 42 are both at a suitable height so that they can match with the block in the track.

[0045] It should be noted that Fig.10 The EE reference line in is the horizontal reference line, and the double-dotted line is the imaginary contour line. Fig.10 It indicates the coordination state of the damper, track 8 and door body 9 when the track remains horizontal and the door body 9 is inclined relative to the horizontal plane. At this time, the first pulley 6 and the second pulley 7 both remain in contact with the guide channel of the track so that they can slide stably along the track 8. The first toggle block 41 and the second toggle block 42 are both at a suitable height so that they can cooperate with the block in the track.

[0046] like Figure 1 and Figure 3 As shown, specifically, in this embodiment, when the first toggle block 41 slides to the first release position relative to the first inner shell 2, the first toggle block 41 can rotate relative to the first inner shell 2; when the second toggle block 42 slides to the second release position relative to the second inner shell 3, the second toggle block 42 can rotate relative to the second inner shell 3.

[0047] like Figure 1 and Figure 3As shown, preferably, in the present embodiment, the side wall of the first inner shell 2 is provided with a first slide groove 24, the first toggle block 41 is provided with a first slider 412, the first toggle block 41 is slidably connected to the first slide groove 24 through the first slider 412, more specifically, the first slide groove 24 includes a first horizontal groove and a first inclined groove connected to the first horizontal groove, specifically, in the present embodiment, the first slider 412 can move relative to the first horizontal groove and the first inclined groove in sequence, more specifically, when the first toggle block 41 moves relatively to the intersection between the first horizontal groove and the first inclined groove (that is, the above-mentioned first release position), the first toggle block 41 can rotate along the first inclined groove relative to the first connecting end of the damping tube 43, and at this time the first toggle block 41 can release the cooperation with the first stop block.

[0048] like Figure 1 and Figure 3 As shown, preferably, in the present embodiment, the side wall of the second inner shell 3 is provided with a second slide groove 34, the second toggle block 42 is provided with a second slider 422, the second toggle block 42 is slidably connected to the second slide groove 34 through the second slider 422, more specifically, the second slide groove 34 includes a second horizontal groove and a second inclined groove connected to the second horizontal groove, specifically, in the present embodiment, the second slider 422 can move relative to the second horizontal groove and the second inclined groove in sequence, more specifically, when the second toggle block 42 moves relatively to the intersection between the second horizontal groove and the second inclined groove (that is, the above-mentioned second release position), the second toggle block 42 can rotate along the second inclined groove relative to the second connecting end of the damping tube 43, and at this time the second toggle block 42 can release the cooperation with the second stop block.

[0049] More specifically, in this embodiment, both the first inclined groove and the second inclined groove are arc-shaped.

[0050] like Figure 5 and Figure 6 As shown, preferably, in the present embodiment, in order to avoid the rotation of the first toggle block 41 being affected by the up and down movement of the first inner shell 2 relative to the outer shell 1, the first toggle block 41 is provided with a first waist-shaped groove 411, and the first connecting end of the damping tube 43 is provided with a first shaft body 435. The first toggle block 41 is rotatably connected to the first shaft body 435 through the cooperation of the first waist-shaped groove 411 and the first shaft body 435. In this way, the first toggle block 41 will not be stuck when it moves to the first release position relative to the first inner shell 2, and the first toggle block 41 can rotate relatively smoothly along the first inclined groove relative to the first connecting end of the damping tube 43.

[0051] like Figure 5 and Figure 7As shown, preferably, in the present embodiment, in order to avoid the rotation of the second toggle block 42 being affected by the up and down movement of the second inner shell 3 relative to the outer shell 1, the second toggle block 42 is provided with a second waist-shaped groove 421, and the second connecting end of the damping tube 43 is provided with a second shaft 436. The second toggle block 42 is rotatably connected to the second shaft 436 through the second waist-shaped groove 421. In this way, the second toggle block 42 will not be stuck when it moves to the second release position relative to the second inner shell 3, and the second toggle block 42 can rotate relatively smoothly along the second inclined groove relative to the second connecting end of the damping tube 43.

[0052] It should be noted that, in some other embodiments, the first waist-shaped groove 411 can also be set at the first connecting end of the damping tube 43, and the first shaft 435 can be set at the first toggle block 41; the second waist-shaped groove 421 can be set at the second connecting end of the damping tube 43, and the second shaft 436 can be set at the second toggle block 42, and the selection can be made according to actual needs.

[0053] It should be noted that in some other embodiments, the first waist-shaped groove 411 may be provided only on the first toggle block 41 without providing the second waist-shaped groove 421 on the second toggle block 42; or, the second waist-shaped groove 421 may be provided only on the second toggle block 42 without providing the first waist-shaped groove 411 on the first toggle block 41, which can be selected according to actual needs.

[0054] like Figure 1 , Figure 3 and Figure 4 As shown, preferably, in this embodiment, the outer shell 1 is provided with a first guide groove 11 and a second guide groove 12, and the first guide groove 11 and the second guide groove 12 are both inclined to the horizontal plane, the first inner shell 2 is provided with a first guide column 21, and the second inner shell 3 is provided with a second guide column 31; the first guide column 21 is slidably connected in the first guide groove 11, and the first inner shell 2 can move up and down along the extension direction of the first guide groove 11, and the second guide column 31 is slidably connected in the second guide groove 12, and the second inner shell 3 can move up and down along the extension direction of the second guide groove 12, so that the cooperation of the first guide column 21 and the first guide groove 11 provides guidance for the up and down movement of the first inner shell 2 relative to the outer shell 1, and the cooperation of the second guide column 31 and the second guide groove 12 provides guidance for the up and down movement of the second inner shell 3 relative to the outer shell 1, and the first inner shell 2 and the second inner shell 3 both move in a direction inclined to the horizontal plane, which is smoother and less likely to jump than moving in a direction perpendicular to the horizontal plane.

[0055] like Figure 1 , Figure 3 and Figure 4As shown, preferably, in this embodiment, two first guide grooves 11 are provided, two first guide columns 21 are provided, the two first guide columns 21 and the two first guide grooves 11 are slidably connected in a one-to-one correspondence, two second guide grooves 12 are provided, two second guide columns 31 are provided, and the two second guide columns 31 and the two second guide grooves 12 are slidably connected in a one-to-one correspondence, so as to further reduce the jitter occurring when the first inner shell 2 and the second inner shell 3 move relative to the outer shell 1, thereby further smoothing the movement of the first inner shell 2 and the second inner shell 3 relative to the outer shell 1.

[0056] It should be noted that, in some other embodiments, the number of first guide grooves 11 may be but is not limited to 1 or 3 or 4, etc., the number of second guide grooves 12 may be but is not limited to 1 or 3 or 4, etc., the number of first guide columns 21 may be correspondingly equal to the first guide grooves 11, and the number of second guide columns 31 may be correspondingly equal to the second guide grooves 12, and no sole limitation is made here.

[0057] More preferably, in this embodiment, the extension directions of the first guide groove 11 and the second guide groove 12 are the same, so that the movement of the first inner shell 2 can be further prevented from hindering the movement of the second inner shell 3, and the movement of the second inner shell 3 can be further prevented from hindering the movement of the first inner shell 2, thereby making the position adjustment of the first inner shell 2 and the second inner shell 3 more convenient and smooth.

[0058] It should be noted that, in some other embodiments, the first guide groove 11 can also be set in the first inner shell 2, the second guide groove 12 can be set in the second inner shell 3, and the first guide column 21 and the second guide column 31 can be correspondingly set in the outer shell 1, according to actual needs.

[0059] like Figure 1 and Figure 2 As shown, further, in the present embodiment, the first inner shell 2 has a first end 22, the second inner shell 3 has a second end 32, and the first end 22 and the second end 32 are opposite to each other; when the first inner shell 2 and the second inner shell 3 are in the initial position, an adjustment gap 5 is formed between the first end 22 and the second end 32 to allow the first inner shell 2 and the second inner shell 3 to move relative to each other, so as to avoid the problem of collision and interference between the first inner shell 2 and the second inner shell 3 when the first inner shell 2 and the second inner shell 3 move up and down relative to the outer shell 1.

[0060] like Figure 2As shown, preferably, in this embodiment, the adjustment interval 5 includes a first interval 51, a second interval 52 and a third interval 53 which are connected in sequence, the first interval 51 and the third interval 53 extend vertically, the second interval 52 extends horizontally, and the first interval 51 and the third interval 53 are respectively located on the upper and lower sides of the second interval 52, so that sufficient avoidance space can be provided for the relative movement of the first inner shell 2 and the second inner shell 3.

[0061] like Figure 2 As shown, specifically, in this embodiment, the first end portion 22 protrudes with a first extension block 23, and the second end portion 32 protrudes with a second extension block 33; Figure 2 and Figure 3 As shown, when the first inner shell 2 moves downward relative to the outer shell 1, the second extension block 33 can abut against the first end 22; Figure 2 and Figure 4 As shown, when the second inner shell 3 moves downward relative to the outer shell 1 , the first extending block 23 may abut against the second extending block 33 .

[0062] Preferably, in this embodiment, if Figure 8 , Fig. 9 and Fig.10 As shown, the highest point of the first toggle block 41 is higher than the highest point of the first pulley 6, and the highest point of the second toggle block 42 is higher than the highest point of the second pulley 7. In this way, the first block and the second block in the track 8 can be prevented from affecting the sliding of the first pulley 6 and the second pulley 7. In this way, the first pulley 6 and the second pulley 7 can slide stably along the track 8, and the first toggle block 41 and the second toggle block 42 can stably cooperate with the blocks in the track.

[0063] Preferably, in this embodiment, the sliding wheel assembly further includes an elastic member (not shown in the figure), which is disposed between the outer shell 1 and the first inner shell 2 and between the outer shell 1 and the second inner shell 3, and is used to provide a buffer for the relative movement between the first inner shell 2 and the outer shell 1, and also for providing a buffer for the relative movement between the second inner shell 3 and the outer shell 1. Specifically, when the first inner shell 2 is pressed and moves downward, the elastic member deforms to generate elastic force to offset the external pressure, thereby achieving a buffer between the first inner shell 2 and the outer shell 1, and when the second inner shell 3 is pressed and moves downward, the elastic member deforms to generate elastic force to offset the external pressure, thereby achieving a buffer between the second inner shell 3 and the outer shell 1.

[0064] It can be understood that when there is an obstacle on the moving track of the guide wheel 6, an elastic member can be used to enable a small range of relative movement between the first inner shell 2 and the outer shell 1 or between the second inner shell 3 and the outer shell 1, thereby ensuring that the guide wheel 6 can pass over the obstacle. In this way, a strong collision between the guide wheel 6 and the obstacle can be effectively avoided, the damage to the guide wheel 6 caused by the obstacle is reduced, and the service life of the guide wheel 6 is increased.

[0065] More preferably, in this embodiment, the elastic member is a torsion spring. Of course, in some other embodiments, the elastic member may also be, but not limited to, a compression spring or elastic rubber, etc., which can be selected according to actual needs.

[0066] It should be noted that, in some other embodiments, the elastic member may also be disposed only between the first inner shell 2 and the outer shell 1 or only between the second inner shell 3 and the outer shell 1 , depending on actual needs.

[0067] It should be noted that, in some other embodiments, the guide wheel 6 may be disposed only in the first inner shell 2 or only in the second inner shell 3 , which can be selected according to actual needs.

[0068] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, specifically, in this embodiment, the damping tube 43 includes a tube body 431, a telescopic rod 432, a first connecting head 433 and a second connecting head 434, the telescopic rod 432 is telescopically arranged on the tube body 431, the first connecting head 433 is connected to one end of the tube body 431, the second connecting head 434 is connected to one end of the telescopic rod 432, the first connecting end of the damping tube 43 is located at the first connecting head 433, the second connecting end of the damping tube 43 is located at the second connecting head 434, the first shaft body 435 is arranged on the first connecting head 433, and the second shaft body 436 is arranged on the second connecting head 434.

[0069] In addition, this embodiment also provides a door and window system, including the sliding wheel assembly as described above, and also includes a door body, and the outer shell 1 is connected to the door body. The door and window system has all the advantages of the sliding wheel assembly described above, which will not be repeated here.

[0070] In summary, the sliding wheel assembly and the door and window system including the sliding wheel assembly disclosed in the utility model can at least bring the following beneficial technical effects:

[0071] 1) The height positions of the first toggle block 41, the second toggle block 42, the first pulley 6 and the second pulley 7 can be adjusted, thereby ensuring that the sliding wheel assembly meets different size requirements and is convenient for application;

[0072] 2) When the door body and the track are tilted, it can ensure that the first toggle block 41 and the second toggle block 42 can stably cooperate with the block in the track, and ensure that the first pulley 6 and the second pulley 7 can stably slide along the track;

[0073] 3) The cooperation between the first waist-shaped groove 411 and the first shaft 435 and the cooperation between the second waist-shaped groove 421 and the second shaft 436 can prevent the first and second toggle blocks 41 and 42 from getting stuck due to the up and down movement of the first inner shell 2 and the second inner shell 3;

[0074] 4) The setting of the adjustment gap 5 can allow the first inner shell 2 and the second inner shell 3 to move relative to each other, thereby avoiding collision and interference between the first inner shell 2 and the second inner shell 3.

[0075] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A sliding wheel assembly, characterized in that: include: Housing (1); A first inner shell (2) movably connected to the outer shell (1) in an up-and-down manner; A second inner shell (3) movably connected to the outer shell (1) in an up-and-down manner; A first pulley (6) is arranged on the first inner shell (2); A second pulley (7) is arranged on the second inner shell (3), and the first pulley (6) and the second pulley (7) are used to slide along the track; The damping assembly (4) comprises a first toggle block (41), a second toggle block (42) and a damping tube (43); the first toggle block (41) and the second toggle block (42) are rotatably connected to two ends of the damping tube (43), respectively; the first toggle block (41) is slidably connected to the first inner shell (2), and the second toggle block (42) is slidably connected to the second inner shell (3).

2. The sliding wheel assembly according to claim 1, characterized in that: One of the first toggle block (41) and the damping tube (43) is provided with a first waist-shaped groove (411), and the other is provided with a first shaft (435), and the first shaft (435) is rotatably connected to the first waist-shaped groove (411); the first toggle block (41) is rotatably connected to the first connecting end of the damping tube (43) through the cooperation between the first waist-shaped groove (411) and the first shaft (435).

3. The sliding wheel assembly according to claim 2, characterized in that: One of the second toggle block (42) and the damping tube (43) is provided with a second waist-shaped groove (421), and the other is provided with a second shaft (436), and the second shaft (436) is rotatably connected to the second waist-shaped groove (421); the second toggle block (42) is rotatably connected to the second connecting end of the damping tube (43) through the cooperation between the second waist-shaped groove (421) and the second shaft (436).

4. The sliding wheel assembly according to claim 1, characterized in that: One of the outer shell (1) and the first inner shell (2) is provided with a first guide groove (11), and the other is provided with a first guide column (21), wherein the first guide column (21) is slidably connected in the first guide groove (11); the first inner shell (2) can move up and down along the extension direction of the first guide groove (11); One of the outer shell (1) and the second inner shell (3) is provided with a second guide groove (12), and the other is provided with a second guide column (31), and the second guide column (31) is slidably connected in the second guide groove (12); the second inner shell (3) can move up and down along the extension direction of the second guide groove (12).

5. The sliding wheel assembly according to claim 4, characterized in that: The first guide groove (11) and the second guide groove (12) are both inclined to a horizontal plane, and the first guide groove (11) and the second guide groove (12) extend in the same direction.

6. The sliding wheel assembly according to claim 1, characterized in that: The highest point of the first toggle block (41) is higher than the highest point of the first pulley (6), and the highest point of the second toggle block (42) is higher than the highest point of the second pulley (7).

7. The sliding wheel assembly according to any one of claims 1 to 6, characterized in that: The first inner shell (2) has a first end (22), the second inner shell (3) has a second end (32), and the first end (22) and the second end (32) are opposite to each other; when the first inner shell (2) and the second inner shell (3) are in an initial position, an adjustment gap (5) is formed between the first end (22) and the second end (32) to allow the first inner shell (2) and the second inner shell (3) to move relative to each other.

8. The sliding wheel assembly according to claim 7, characterized in that: The adjustment interval (5) comprises a first interval (51), a second interval (52) and a third interval (53) which are connected in sequence, the first interval (51) and the third interval (53) extend vertically, the second interval (52) extends horizontally, and the first interval (51) and the third interval (53) are respectively located at the upper and lower sides of the second interval (52).

9. The sliding wheel assembly according to claim 1 or 2 or 3 or 4 or 5 or 6 or 8, characterized in that: The sliding wheel assembly also includes an elastic member; the elastic member is arranged between the outer shell (1) and the first inner shell (2), and the elastic member is used to provide a buffer for the relative movement between the first inner shell (2) and the outer shell (1); and / or the elastic member is arranged between the outer shell (1) and the second inner shell (3), and the elastic member is used to provide a buffer for the relative movement between the second inner shell (3) and the outer shell (1).

10. Door and window system, characterized in that, It comprises the sliding wheel assembly as claimed in any one of claims 1 to 9, and also comprises a door body, and the housing (1) is connected to the door body.

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