Bearing wheel assembly and side pressure door and window system

Abstract

The utility model provides a bearing wheel assembly and a side pressure door and window system, the bearing wheel assembly comprises a bearing wheel base, a bearing wheel sliding block, a base plate, a gasket and a pulley, the pulley is arranged on the bearing wheel sliding block, and the bearing wheel assembly is arranged at the bottom of a movable sash through the bearing wheel base; the base plate and the gasket are both in a flat plate shape, the base plate is arranged at the bottom of the bearing wheel base, and the gasket is arranged at the top of the bearing wheel sliding block. The bearing wheel base is arranged above the bearing wheel sliding block in the mode that the lower surface of a base plate is attached to the upper surface of a gasket, and the friction coefficient between the lower surface of the base plate and the upper surface of the gasket is smaller than that between the bearing wheel base and the bearing wheel sliding block. According to the utility model, the side pressing operation of the side pressing door and window system is smoother.

Description

Technical Field

[0001] This utility model relates to the field of door and window hardware, and more specifically, to a load-bearing wheel assembly and a side-pressure door and window system. Background Technology

[0002] Sliding doors and windows are a common type of door and window in daily life. Due to their space-saving, aesthetically pleasing, and breathable characteristics, they are widely used in modern architecture. However, the sliding structure of sliding doors and windows limits their sealing performance, resulting in relatively poor sealing. Therefore, side-pressing sliding doors and windows were developed. These primarily use a side-pressing system to cause the movable sash to slide laterally and press against the outer frame, forming a tight connection and thus improving the sealing effect.

[0003] In existing side-pressure systems on the market, the side pressure of the movable fan is mainly achieved through sliding friction between the slider of the movable fan and the base of the movable fan. However, as the weight of the movable fan increases, the sliding friction also increases accordingly, which in turn affects the smoothness of operation during the side-pressure process. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a new load-bearing wheel assembly and a side-pressure door and window system, which addresses the problem of unsmooth side-pressure operation caused by the increased weight of the movable sash in the above-mentioned side-pressure system.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a load-bearing wheel assembly for use in a side-pressure door and window system. The load-bearing wheel assembly includes a load-bearing wheel base, a load-bearing wheel slider, a pad, a gasket, and a pulley. The pulley is installed on the load-bearing wheel slider, and the load-bearing wheel assembly is installed to the bottom of the movable sash through the load-bearing wheel base. The pad and the gasket are both flat, and the pad is installed at the bottom of the load-bearing wheel base, and the gasket is installed at the top of the load-bearing wheel slider. The load-bearing wheel base is installed above the load-bearing wheel slider with the lower surface of the pad and the upper surface of the gasket in contact. The coefficient of friction between the lower surface of the pad and the upper surface of the gasket is less than the coefficient of friction between the load-bearing wheel base and the load-bearing wheel slider.

[0006] As a further improvement of this utility model, the top of the load-bearing wheel slider has a first mounting surface parallel to the horizontal plane, and the first mounting surface has a first groove adapted to the gasket; the gasket is installed in the first groove, and the upper surface of the gasket is flush with or protrudes from the first mounting surface.

[0007] As a further improvement of this utility model, the bottom wall of the first groove has a sliding groove, and the angle between the center line of the sliding groove and the length direction of the first mounting surface is greater than 0° and less than 30°.

[0008] The pad has a first through hole that extends vertically through the upper and lower surfaces of the pad and is adapted to the groove. When the pad is installed on the load-bearing wheel slider, the vertical projection of the groove on the pad is located within the first through hole.

[0009] As a further improvement of this utility model, the gasket has a plurality of oil storage holes, which are located on both sides of the first through hole and penetrate the upper and lower surfaces of the gasket.

[0010] As a further improvement of this utility model, the width of the pad is greater than the width of the gasket, and when the gasket slides relative to the pad, the oil storage hole is always located within the coverage area of ​​the pad.

[0011] The bottom wall of the first groove has a guide groove arranged along the width direction of the first mounting surface. The pad and the pad plate each have a guide through hole adapted to the guide groove. The load-bearing wheel base has a guide rod, and when the load-bearing wheel base is installed on the load-bearing wheel slider, the guide rod passes through the guide through hole on the pad and the pad and inserts into the guide groove.

[0012] As a further improvement of this utility model, the bottom of the load-bearing wheel base has a second mounting surface parallel to the horizontal plane, and the second mounting surface has a second groove adapted to the pad; the pad is installed in the second groove, and the lower surface of the pad is flush with or protrudes from the second mounting surface.

[0013] As a further improvement of this utility model, the load-bearing wheel base has a second through hole, the center line of the second through hole is parallel to the length direction of the second mounting surface and extends vertically from the top of the load-bearing wheel base to the second mounting surface;

[0014] The pad has a third through hole, which extends vertically through the upper and lower surfaces of the pad and is adapted to the second through hole. When the pad is installed on the load-bearing wheel base, the vertical projection of the second through hole is located within the third through hole.

[0015] As a further improvement of this utility model, the load-bearing wheel base has two flanges respectively arranged along the width direction of the second mounting surface, the two flanges respectively protrude below the second mounting surface and form two guide grooves at both ends of the length direction of the second mounting surface; the load-bearing wheel slider has two protruding ridges adapted to the guide grooves, and when the load-bearing wheel base is assembled to the load-bearing wheel slider, the two protruding ridges are respectively embedded into the two guide grooves.

[0016] As a further improvement of this utility model, the load-bearing wheel base and the load-bearing wheel slider are made of zinc alloy, and the pad and gasket are made of stainless steel.

[0017] This utility model also provides a side-pressure door and window system, including a lower guide rail, a movable sash, and a load-bearing wheel assembly as described above. The load-bearing wheel base is installed at the bottom of the movable sash, and the pulley is installed on the lower guide rail.

[0018] The present invention has the following beneficial effects: by adding a pad and a shim with a relatively small coefficient of friction between the load-bearing wheel base and the load-bearing wheel slider, the friction between the pad and the shim replaces the friction between the load-bearing wheel base and the load-bearing wheel slider during side pressure, thereby making the side pressure operation smoother. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the load-bearing wheel assembly provided in an embodiment of this utility model.

[0020] Figure 2 This is an exploded structural diagram of the load-bearing wheel assembly provided in this embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the shim being assembled onto the load-bearing wheel slider in the load-bearing wheel assembly provided in this embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of the pad being assembled onto the base of the load-bearing wheel assembly provided in this embodiment of the utility model.

[0023] Figure 5 This is a cross-sectional structural diagram of the load-bearing wheel assembly provided in this embodiment of the utility model.

[0024] Attached icon number

[0025] 10 Load-bearing wheel base; 11 Second mounting surface

[0026] 12 Second groove 13 Second through hole

[0027] 14 Flange 15 Guide groove

[0028] 16 Edge retainer 17 Positioning block

[0029] 18 Guide rods 20 Load-bearing wheels sliders

[0030] 21 First mounting surface 22 First groove

[0031] 23 Slide groove 24 Guide groove

[0032] 25 convex rib 30 pad

[0033] 31 Third through hole; 32 Guide through hole

[0034] 33 Positioning notch 40 Gasket

[0035] 41 First through hole 42 Oil reservoir hole

[0036] 43 Guide hole 50 Pulley Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] like Figure 1 , Figure 2 The diagram shows a structural schematic of the load-bearing roller assembly provided in this embodiment of the present invention. This load-bearing roller assembly is applied to a side-pressure door and window system and can be combined with a transmission component to realize the lateral translation (i.e., movement perpendicular to the thickness direction of the door leaf) of the movable sash (door leaf or window leaf). The load-bearing roller assembly of this embodiment includes a load-bearing roller base 10, a load-bearing roller slider 20, a pad 30, a gasket 40, and a pulley 50. The pulley 50 is mounted on the load-bearing roller slider 20, and the load-bearing roller assembly is fixed to the bottom of the movable sash through the load-bearing roller base 10 and assembled to the slide rail (i.e., the lower guide rail of the door frame or the lower guide rail of the window frame) through the pulley 50. In the above-mentioned load-bearing roller assembly, the assembly structure of the pulley 50, the load-bearing roller base 10 and the movable sash, and the structure of the pulley 50 being assembled to the load-bearing roller slider 20 can all adopt conventional structures in the art, and will not be described in detail here.

[0039] Both the pad 30 and the shim 40 are flat, for example, thin plates with a thickness of 0.5-3mm. In practical applications, the thicknesses of the pad 30 and the shim 40 can be the same or different. The pad 30 is installed at the bottom of the load-bearing wheel base 10, and the pad 30 and the load-bearing wheel base 10 cannot move relative to each other; the shim 40 is installed at the top of the load-bearing wheel slider 20, and the shim 40 and the load-bearing wheel slider 20 cannot move relative to each other. The load-bearing wheel base 10 is mounted above the load-bearing wheel slider 20. The lower surface of the pad 30 is in contact with the upper surface of the pad 40. That is, the load-bearing wheel base 10 and the load-bearing wheel slider 20 do not directly contact each other, or the direct contact area is relatively small (for example, the contact area between the pad 30 and the pad 40 is more than 5 times the contact area between the load-bearing wheel base 10 and the load-bearing wheel slider 20). Furthermore, the coefficient of friction between the lower surface of the pad 30 and the upper surface of the pad 40 is less than the coefficient of friction between the load-bearing wheel base 10 and the load-bearing wheel slider 20.

[0040] The aforementioned load-bearing roller assembly, by adding a pad 30 and a shim 40 with a relatively low coefficient of friction between the load-bearing roller base 10 and the load-bearing roller slider 20, allows the friction between the pad 30 and the shim 40 to replace (including partially replace) the friction between the load-bearing roller base 10 and the load-bearing roller slider 20 during side-pressing operations, thereby reducing the frictional force during side-pressing operations and making the side-pressing operations smoother.

[0041] In one embodiment of this invention, similar to existing side-pressing systems, the load-bearing wheel base 10 and the load-bearing wheel slider 20 are made of zinc alloy, while the pad 30 and the gasket 40 are made of stainless steel (e.g., 304 stainless steel). That is, during side-pressing operation, sliding friction between stainless steel components replaces sliding friction between zinc alloy components. Since the coefficient of friction between stainless steel components is lower than that between zinc alloy components under the same conditions, the frictional force during side-pressing operation can be significantly reduced, making the side-pressing operation smoother.

[0042] Furthermore, due to the high structural strength of stainless steel, even with a small thickness, the pads 30 and 40 can withstand the weight of the movable fan without significantly increasing the cost of the load-bearing roller assembly. In addition, compared to adding ball bearings between the load-bearing roller base 10 and the load-bearing roller slider 20, the pads 30 and 40 do not damage the zinc alloy-made load-bearing roller base 10 and load-bearing roller slider 20, eliminating the need to use high-strength materials in their manufacture.

[0043] Of course, in practical applications, either a pad 30 or a shim 40 can be added to the load-bearing wheel base 10 and the load-bearing wheel slider 20, or only one of the pad 30 and the shim 40 can be made of stainless steel, but its effect of reducing friction is relatively poor.

[0044] Combination Figure 2 , Figure 3As shown, in one embodiment of this utility model, the aforementioned load-bearing wheel slider 20 includes a first mounting surface 21, which is located at the top of the load-bearing wheel slider 20 and parallel to the horizontal plane (after the load-bearing wheel assembly is assembled). The first mounting surface 21 has a first groove 22, and the gasket 40 is assembled to the load-bearing wheel slider 20 by embedding into the first groove 22. The first groove 22 is adapted to the gasket 40, that is, the first groove 22 and the gasket 40 have the same shape, and the size of the first groove 22 is slightly smaller than the size of the gasket 40, so that the gasket 40 can be assembled into the first groove 22, and the gasket 40 cannot slide relative to the load-bearing wheel slider 20 (or the relative sliding dimension is negligible). Furthermore, when the gasket 40 is installed in the first groove 22, the upper surface of the gasket 40 is flush with or protrudes from the first mounting surface 21 (preferably the upper surface of the gasket 40 slightly protrudes from the first mounting surface 21), that is, the thickness of the gasket 40 is slightly greater than the depth of the first groove 22. The above structure allows for the assembly of the shim 40 and the load-bearing wheel slider 20. This assembly is not only simple and stable, but also relatively easy to perform. Of course, in practical applications, the shim 40 can also be fixed to the top of the load-bearing wheel slider 20 using screws, but this is a more cumbersome operation.

[0045] In one embodiment of this utility model, the bottom wall of the first groove 22 of the above-mentioned load-bearing wheel slider 20 has a groove 23, the center line of which is parallel to the length direction of the first mounting surface 21 (e.g., Figure 2 The included angle (pointing to the arrow X in the diagram) is greater than 0° and less than 30°. Correspondingly, the gasket 40 has a first through hole 41, which vertically penetrates both the upper and lower surfaces of the gasket 40 and is adapted to the groove 23. When the gasket 40 is installed on the load-bearing wheel slider 20, the vertical projection of the groove 23 onto the gasket 40 is located within the first through hole 41; that is, the shape and size of the first through hole 41 are adapted to the shape and size of the groove 23 (or slightly larger than the size of the groove 23). The groove 23 described above is similar to the corresponding structure in existing side-pressure systems and will not be described further here.

[0046] like Figure 3 As shown, in one embodiment of this utility model, the gasket 40 has a plurality of oil storage holes 42 (e.g., Figure 3 (Six shown in the diagram) The oil reservoir 42 is located on both sides of the first through hole 41 and penetrates the upper and lower surfaces of the gasket 40. After assembly onto the load-bearing wheel slider 20, lubricating oil can be added to the oil reservoir 42. Thus, after the load-bearing wheel assembly is assembled between the movable fan and the lower guide rail, the lubricating oil in the oil reservoir will seep out under the gravity of the movable fan, lubricating between the gasket 30 and the gasket 40, thereby making the side pressure operation smoother.

[0047] Furthermore, the width of the pad 30 is greater than the width of the gasket 40 (i.e., Figure 2The dimension (in the direction indicated by arrow Y) is such that, when the gasket 40 slides relative to the pad 30, the oil reservoir 42 is always within the coverage area of ​​the pad 30. This prevents lubricating oil in the oil reservoir 42 from leaking from the side of the load-bearing wheel assembly. Those skilled in the art will understand that the length of the pad 30 may be equal to or greater than the length of the gasket 40.

[0048] In one embodiment of this utility model, the bottom wall of the first groove 22 further has a shape along the width direction of the first mounting surface 21 (e.g., Figure 2 The guide groove 24 (in the direction indicated by arrow Y) is provided. Correspondingly, the pad 40 and the pad plate 30 have guide through holes 43 and 32 (i.e., guide through holes 43 and 32 are both strip holes) that are adapted to the guide groove 24. The load-bearing wheel base 10 has a guide rod 18 that protrudes below the load-bearing wheel base 10. When the load-bearing wheel base 10 is installed on the load-bearing wheel slider 20, the guide rod 18 passes through the guide through holes 32 and 43 on the pad plate 30 and the pad 40 and inserts into the guide groove 24. Through the cooperation of the guide groove 24, the guide through holes 32 and 43 and the guide rod 18, the sliding direction and sliding distance of the load-bearing wheel base 10 and the movable fan on the load-bearing wheel slider 20 can be limited, making the lateral translation of the load-bearing wheel base 10 and the movable fan more accurate during side pressure operation.

[0049] like Figure 4 As shown, in one embodiment of this utility model, the aforementioned load-bearing wheel base 10 has a second mounting surface 11. This second mounting surface 11 is located at the bottom of the load-bearing wheel base 10 (the bottom refers only to the area below the second mounting surface 11 facing the load-bearing wheel base 10, not the lowest point of the load-bearing wheel base 10) and is parallel to the horizontal plane (after the load-bearing wheel assembly is assembled). The second mounting surface 11 has a second groove 12, and the pad 30 is mounted on the load-bearing wheel base 10 by embedding it into the second groove 12. The second groove 12 is adapted to the pad 30, meaning that the second groove 12 and the pad 30 have the same shape. The size of the second groove 12 is slightly smaller than the size of the pad 30, so that the pad 30 can be assembled into the second groove 12, and the pad 30 cannot slide relative to the load-bearing wheel base 10 (or the relative sliding dimension is negligible).

[0050] Furthermore, when the pad 30 is installed in the second groove 12, the lower surface of the pad 30 is flush with or protrudes from the second mounting surface 11 (preferably the upper surface of the pad 30 protrudes slightly from the second mounting surface 11), meaning the thickness of the pad 30 is slightly greater than the depth of the second groove 12. This structure allows for the assembly of the pad 30 with the load-bearing wheel base 10, resulting in a simple and stable structure with relatively easy assembly. Of course, in practical applications, the pad 30 can also be fixed to the bottom of the load-bearing wheel base 10 using screws, but this operation is relatively cumbersome.

[0051] The edge of the second groove 12 may also have a positioning block 17. Correspondingly, the edge of the pad 30 has a positioning notch 33, and when the pad 30 is inserted into the second groove 12, the positioning block 17 is inserted into the positioning notch 33. With the above structure, the pad 30 can be prevented from being installed backwards.

[0052] In one embodiment of this utility model, the aforementioned load-bearing wheel base 10 has a second through hole 13, the centerline of which is parallel to the length direction of the second mounting surface 11 and extends vertically from the top of the load-bearing wheel base 10 to the second mounting surface 11. Correspondingly, the pad 30 has a third through hole 31 (the guide through hole 32 can communicate with the third through hole 31), the third through hole 31 extends vertically through the upper and lower surfaces of the pad 30 and is adapted to the second through hole 13. When the pad 30 is installed on the load-bearing wheel base 10, the vertical projection of the second through hole 13 is located within the third through hole 31, that is, the size of the third through hole 31 is slightly larger than or the same as the size of the second through hole 13. In this way, the drive rod of the side pressure system can pass through the second through hole 13, the third through hole 31, and the first through hole 41 and be inserted into the slide groove 23, and drive the load-bearing wheel base 10 to move laterally relative to the load-bearing wheel slider 20 by sliding within the slide groove 23.

[0053] Combination Figure 3 , Figure 4 As shown, in one embodiment of this utility model, the load-bearing wheel base 10 has two flanges 14 respectively arranged along the width direction of the second mounting surface 11. The two flanges 14 protrude below the second mounting surface 11 and form two guide grooves 15 at both ends of the length direction of the second mounting surface 11 (i.e., the guide grooves 15 are located between the second mounting surface 11 and the flanges 14). Correspondingly, the load-bearing wheel slider 20 has two protruding ribs 25 adapted to the guide grooves 15, and when the load-bearing wheel base 10 is assembled to the load-bearing wheel slider 20, the two protruding ribs 25 are respectively embedded into the two guide grooves 15. With the above structure, the sliding of the load-bearing wheel base 10 relative to the load-bearing wheel slider 20 can be limited to avoid displacement during lateral pressure.

[0054] In addition, a retaining edge 16 can be provided on the load-bearing wheel base 10. The retaining edge 16 is located on one side of the second mounting surface 11 in the width direction and protrudes downward from the plane where the second mounting surface 11 is located. The retaining edge 16 can limit the relative sliding between the load-bearing wheel base 10 and the load-bearing wheel slider 20, and prevent the load-bearing wheel base 10 from coming off the side of the load-bearing wheel slider 20.

[0055] This utility model also provides a side-pressure door and window system, including a lower guide rail, a movable sash, and a load-bearing wheel assembly as described above. The load-bearing wheel base is installed at the bottom of the movable sash, and the pulley is installed on the lower guide rail.

[0056] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A load-bearing wheel assembly, applied to a side-pressure door and window system, characterized in that, The load-bearing wheel assembly includes a load-bearing wheel base, a load-bearing wheel slider, a pad, a gasket, and a pulley. The pulley is mounted on the load-bearing wheel slider. The load-bearing wheel assembly is installed to the bottom of the movable fan via the load-bearing wheel base. Both the pad and the gasket are flat. The pad is mounted to the bottom of the load-bearing wheel base, and the gasket is mounted to the top of the load-bearing wheel slider. The load-bearing wheel base is mounted above the load-bearing wheel slider with the lower surface of the pad and the upper surface of the gasket in contact. The coefficient of friction between the lower surface of the pad and the upper surface of the gasket is less than the coefficient of friction between the load-bearing wheel base and the load-bearing wheel slider.

2. The load-bearing wheel assembly according to claim 1, characterized in that, The top of the load-bearing wheel slider has a first mounting surface parallel to the horizontal plane, and the first mounting surface has a first groove adapted to the gasket; the gasket is installed in the first groove, and the upper surface of the gasket is flush with or protrudes from the first mounting surface.

3. The load-bearing wheel assembly according to claim 2, characterized in that, The bottom wall of the first groove has a sliding groove, and the angle between the center line of the sliding groove and the length direction of the first mounting surface is greater than 0° and less than 30°. The pad has a first through hole that extends vertically through the upper and lower surfaces of the pad and is adapted to the groove. When the pad is installed on the load-bearing wheel slider, the vertical projection of the groove on the pad is located within the first through hole.

4. The load-bearing wheel assembly according to claim 3, characterized in that, The gasket has several oil storage holes, which are located on both sides of the first through hole and penetrate the upper and lower surfaces of the gasket.

5. The load-bearing wheel assembly according to claim 4, characterized in that, The width of the pad is greater than the width of the gasket, and the oil reservoir hole is always within the coverage area of ​​the pad when the gasket slides relative to the pad. The bottom wall of the first groove has a guide groove arranged along the width direction of the first mounting surface. The pad and the pad plate each have a guide through hole adapted to the guide groove. The load-bearing wheel base has a guide rod, and when the load-bearing wheel base is installed on the load-bearing wheel slider, the guide rod passes through the guide through hole on the pad and the pad and inserts into the guide groove.

6. The load-bearing wheel assembly according to claim 1, characterized in that, The bottom of the load-bearing wheel base has a second mounting surface parallel to the horizontal plane, and the second mounting surface has a second groove adapted to the pad; the pad is installed in the second groove, and the lower surface of the pad is flush with or protrudes from the second mounting surface.

7. The load-bearing wheel assembly according to claim 6, characterized in that, The load-bearing wheel base has a second through hole, the center line of which is parallel to the length direction of the second mounting surface and extends vertically from the top of the load-bearing wheel base to the second mounting surface. The pad has a third through hole, which extends vertically through the upper and lower surfaces of the pad and is adapted to the second through hole. When the pad is installed on the load-bearing wheel base, the vertical projection of the second through hole is located within the third through hole.

8. The load-bearing wheel assembly according to claim 6, characterized in that, The load-bearing wheel base has two flanges respectively arranged along the width direction of the second mounting surface. The two flanges respectively protrude below the second mounting surface and form two guide grooves at both ends of the length direction of the second mounting surface. The load-bearing wheel slider has two protruding ribs that are adapted to the guide grooves. When the load-bearing wheel base is assembled to the load-bearing wheel slider, the two protruding ribs are respectively embedded into the two guide grooves.

9. The load-bearing wheel assembly according to any one of claims 1-8, characterized in that, The load-bearing wheel base and the load-bearing wheel slider are made of zinc alloy, and the pad and gasket are made of stainless steel.

10. A side-pressure door and window system, characterized in that, It includes a lower guide rail, a movable fan, and a load-bearing wheel assembly as described in any one of claims 1-9, wherein the load-bearing wheel base is mounted on the bottom of the movable fan, and the pulley is mounted on the lower guide rail.

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