Load-bearing pulley device and door and window

Abstract

The utility model relates to a load-bearing tackle device and a door and window. The load-bearing tackle device comprises a tackle body, a positioning hook, a limiting block and a swing arm. Grooves are formed in the front end and the tail end of the trolley body, pulleys are installed in the two grooves through pulley shafts, one end of the positioning hook is installed on one side of the trolley body through one end of the pulley shaft at the tail end of the trolley body, and the other end of the positioning hook can be connected with a positioning block of a door and window in a clamped mode. The limiting block is rotatably mounted in the groove through a shaft, and the limiting block can abut against a positioning block of the door and window; one end of the swing arm is rotatably mounted on the vehicle body through a positioning shaft, and a shaft hole is formed in the other end of the swing arm and used for mounting a threaded shaft. By arranging the positioning hook and the limiting block, it is guaranteed that the tackle body can be fixed to the door and window, and when the positioning hook cannot abut against the door and window positioning block, the door and window sash cannot be locked; when the positioning hook abuts against the door and window positioning block, the door and window sash is locked, the stability of the tackle is higher, assembly is easy, and practicability is high.

Description

Technical Field

[0001] This application relates to the field of sliding door and window technology, and more particularly to a load-bearing trolley device and door / window. Background Technology

[0002] With the continuous development of modern building technology and people's increasing demands for the quality of their living environment, rotary sliding doors and windows have been widely used in residential, commercial, and industrial buildings due to their unique opening mechanism and convenient user experience. These door and window designs not only effectively utilize space but also provide excellent ventilation and lighting.

[0003] The doors and windows installed in existing buildings are generally outward-opening or inward-opening, i.e., casement doors and windows. These types of doors and windows use side-hinged (such as hinges) installation structures and open by rotating around their side-hinged points. Structurally, they suffer from defects such as sagging door and window sashes, susceptibility to deformation, and the large space required for opening, and also have poor overall integrity.

[0004] However, in actual use, the trolley system for opening parallel sliding doors and windows often faces some technical challenges during movement, especially when the window sash detaches from the window frame to slide parallel, the stability and control precision of the trolley become key issues. Utility Model Content

[0005] In view of this, this application proposes a load-bearing pulley device to improve the stability of the pulley.

[0006] According to one aspect of this application, a load-bearing window sash trolley device is provided, the device comprising two trolleys placed opposite each other and a connecting rod connecting the two trolleys, each trolley comprising: a body, a sliding cover, a positioning hook, a limiting block and a swing arm;

[0007] The vehicle body is provided with a positioning hook at one end, one end of the positioning hook is installed on one side of the vehicle body, and the other end of the positioning hook can be engaged with the positioning block of the door and window. The limiting block is rotatably installed in the groove via a shaft, and the limiting block can abut against the positioning block of the door and window. The positioning hook and the limiting block are used to fix the vehicle body.

[0008] One end of the swing arm is provided with a cam, which is rotatably mounted on the vehicle body via a positioning shaft. The other end of the swing arm is provided with a shaft hole for installing a threaded shaft, which is used to fix the window sash. The swing arm is used to drive the window sash to move.

[0009] The upper part of the vehicle body is provided with the sliding cover, which is an L-shaped plate structure. The first side of the sliding cover is located on the top surface of the vehicle body, and the second side of the sliding cover is located on the side of the vehicle body. The sliding cover is fixed to the vehicle body by positioning wheel shims, positioning wheels, and positioning wheel rivets.

[0010] The cam of the swing arm can drive the sliding cover to move along the vehicle body direction via the positioning wheel.

[0011] In one possible implementation, the positioning hook has a first positioning protrusion on the side near the vehicle body, the first positioning protrusion being used to engage with the limiting block; the positioning hook has a second positioning protrusion extending downward at one end near the positioning block, the second positioning protrusion being used to engage with the positioning block.

[0012] In one possible implementation, the positioning hook has a positioning hole for connecting with the pulley shaft, and the positioning hook above the positioning hole has a U-shaped groove.

[0013] In one possible implementation, the vehicle body has a through hole running from left to right, which can be used to install the swing arm; the second side of the sliding cover has a downwardly extending protrusion structure, which is used to engage with the U-shaped groove of the positioning hole.

[0014] In one possible implementation, the vehicle body has a corresponding shaft hole in the groove, the shaft hole being used to pass through the positioning shaft and the pulley shaft.

[0015] One possible implementation also includes: pulleys;

[0016] The lower part of the vehicle body has two grooves, and pulleys are installed in the two grooves through pulley shafts. The pulleys can drive the vehicle body to slide on the slide rail.

[0017] One possible implementation also includes: a dust cover;

[0018] The groove opening is fitted with a dust cover.

[0019] In one possible implementation, the sliding cover has a through hole, and the sliding cover is fixed to the vehicle body by means of a positioning wheel washer, a positioning wheel, and a positioning wheel rivet passing through the through hole.

[0020] In one possible implementation, the swing angle of the swing arm is from 0 degrees to 90 degrees.

[0021] According to another aspect of this application, a door or window is provided, including a load-bearing trolley device according to any one of the claims.

[0022] The beneficial effects of this application are as follows: by setting positioning hooks and limiting blocks, the trolley body can be fixed on the door and window. When the positioning hook cannot abut against the door and window positioning block, the door and window cannot be locked. When the positioning hook abuts against the door and window positioning block, the door and window are locked. The trolley is more stable, and the assembly is simple and practical.

[0023] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0025] Figure 1 This diagram shows the main structure of the load-bearing trolley device according to an embodiment of this application;

[0026] Figure 2 An exploded view of the load-bearing trolley device according to an embodiment of this application is shown;

[0027] Figure 3 Show Figure 2 The main structure diagram of the center positioning hook.

[0028] 1. Vehicle body; 11. Sliding cover; 111. Positioning pin; 112. Dust cover; 113. Positioning wheel washer; 114. Positioning wheel; 115. Positioning wheel rivet; 12. Swing arm; 121. Positioning shaft; 131. Positioning hook; 1311. First positioning protrusion; 1312. Second positioning protrusion; 132. Limiting block; 133. Positioning block; 14. Threaded shaft; 15. Pulley; 16. Pulley shaft. Detailed Implementation

[0029] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0030] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0033] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0034] Example 1

[0035] like Figures 1 to 2 As shown, the load-bearing trolley device includes: a car body 1, a sliding cover 11, a positioning pin 111, an upper cover 112, a positioning wheel washer 113, a positioning wheel 114, a positioning wheel rivet 115, a swing arm 12, a positioning shaft 121, a positioning hook 131, a limiting block 132, a threaded shaft 14, a pulley 15, and a pulley shaft 16.

[0036] The front end and the rear end of the vehicle body 1 are provided with grooves. A pulley 15 is installed in the two grooves through a pulley shaft 16. The pulley 15 can drive the vehicle body 1 to slide on a slide rail. One end of the positioning hook 131 is installed on one side of the vehicle body 1 through one end of the pulley shaft 16 at the rear end of the vehicle body 1. The other end of the positioning hook 131 can be engaged with the positioning block 133 of the door and window. The limiting block 132 is rotatably installed in the groove through a shaft. The limiting block 132 can abut against the positioning block 133 of the door and window. The positioning hook 131 and the limiting block 132 are used to fix the vehicle body 1. One end of the swing arm 12 is provided with a cam. The cam is rotatably installed on the vehicle body 1 through a positioning shaft 121. The other end of the swing arm 12 is provided with a shaft hole. The shaft hole is used to install a threaded shaft 14. The threaded shaft 14 is used to fix the window sash. The swing arm 12 is used to drive the window sash to move.

[0037] The positioning hook 131 includes: a first positioning protrusion 1311 and a second positioning protrusion 1312; the first positioning protrusion 1311 extends towards the vehicle body 1 from one side and is used to engage with the limiting block 132; the second positioning protrusion 1312 extends downward from one end of the positioning block and is used to engage with the positioning block 133. The positioning hook 131 has a positioning hole for connecting to the pulley shaft 16, and a U-shaped groove is located on the upper part of the positioning hook 131 above the positioning hole.

[0038] Furthermore, the vehicle body has a through hole running from left to right, which can be used to install the swing arm 12.

[0039] A cavity is provided on the upper part of the vehicle body 1 of the through hole, and the sliding cover 11 is installed in the cavity. The sliding cover 11 is an L-shaped plate structure. The first side of the sliding cover 11 is located on the top surface of the vehicle body 1, and the second side of the sliding cover 11 is located on the side of the vehicle body 1. The second side of the sliding cover 11 has a downwardly extending protrusion structure, which is used to engage with the U-shaped groove of the positioning hole. The first side of the sliding cover 11 has a sliding groove, which is fixed to the vehicle body 1 by a positioning pin 111. The sliding cover 11 can move horizontally along the direction of the vehicle body 1. A dust cover 112 is installed at the opening of the sliding groove.

[0040] The sliding cover 11 has a through hole on its first surface. The sliding cover 11 is fixed to the vehicle body 1 through the through hole by a positioning wheel washer 113, a positioning wheel 114, and a positioning wheel rivet 115. Furthermore, the swing angle of the swing arm 12 is from 0 degrees to 90 degrees.

[0041] Example 2

[0042] This embodiment provides a door and window according to embodiment 1. Each of the door and window is equipped with a set of load-bearing trolley devices at the top and bottom. The door and window are mounted on the load-bearing trolley devices via threaded shaft 14, and the door and window and the load-bearing trolley devices can be slid on the slide rail by the door and window handle.

[0043] Example 3

[0044] When the door / window sash slides to the point where the positioning block closes, the door / window sash drives the swing arm to begin swinging. The swing arm rotates inward under its own weight, and the cam on the swing arm drives the positioning wheel to rotate. The positioning wheel drives the sliding cover to move, and the slide slides towards the door / window positioning block. The limiting block and the positioning block collide and abut, and the sliding cover pushes the positioning hook to rotate downward and lock onto the positioning block. The positioning hook engages with the positioning block through the first positioning protrusion. The spring inside the limiting block is compressed, and the second positioning protrusion of the positioning hook engages with the limiting block. The cam of the swing arm drives the positioning wheel to rotate, and the load-bearing slide device drives the door / window to lock the protrusion structure of the sliding cover and engage with the U-shaped groove of the positioning hook, completing the self-locking and closing the door / window sash.

[0045] When the door or window is opened, the swing arm rotates out, the limit block and the positioning block are not in contact, the spring inside the limit block extends, the limit block can pop out, the positioning hook pops up, and the sliding cover on the trolley is pushed by the spring to move in the direction of the cam track. The sliding cover slides away from the positioning block, and the sliding cover drives the positioning hook to rise. As the trolley moves away, the positioning block rebounds into place and the window sash slides parallel. At this time, the limit block cannot be fixed, the door or window sash cannot be locked, and the trolley can slide along the track. When the door or window sash is hit by an external force and returns to its original position, the positioning hook is restricted by the limit block, so the swing arm cannot rotate in, the positioning hook cannot engage the limit block and the positioning block, and the door or window sash cannot be closed. This achieves the function of restricting the rotation of the window sash, making the use of the door and window convenient and avoiding the inconvenience caused by the sudden locking of the opened door or window.

[0046] It should be noted that although the load-bearing trolley device and doors and windows described above are used as examples, those skilled in the art will understand that this application is not limited to these. In fact, users can flexibly set various parameters according to their personal preferences and / or actual application scenarios, as long as the design is reasonable.

[0047] In this way, by setting positioning hooks and limiting blocks, the trolley body can be fixed to the door and window. When the positioning hook cannot abut against the door and window positioning block, the door and window cannot be locked; when the positioning hook abuts against the door and window positioning block, the door and window are locked. The trolley is more stable, and the assembly is simple and practical.

[0048] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A load-bearing pulley device, the device comprising two pulleys connected end-to-end and a connecting rod connecting the two pulleys, characterized in that, Each trolley includes: a body, a sliding cover, a positioning hook, a limiting block, and a swing arm; The vehicle body is provided with a positioning hook at one end. One end of the positioning hook is installed on one side of the vehicle body, and the other end of the positioning hook can be engaged with the positioning block of the door or window. The limiting block is rotatably installed in the groove of the vehicle body via a shaft. The limiting block can abut against the positioning block of the door or window. The positioning hook and the limiting block are used to fix the vehicle body. One end of the swing arm is provided with a cam, which is rotatably mounted on the vehicle body via a positioning shaft. The other end of the swing arm is provided with a shaft hole for installing a threaded shaft, which is used to fix the window sash. The swing arm is used to drive the window sash to move. The upper part of the vehicle body is provided with the sliding cover, which is an L-shaped plate structure. The first side of the sliding cover is located on the top surface of the vehicle body, and the second side of the sliding cover is located on the side of the vehicle body. The sliding cover is fixed to the vehicle body by positioning wheel shims, positioning wheels, and positioning wheel rivets. The cam of the swing arm can drive the sliding cover to move along the vehicle body direction via the positioning wheel.

2. The load-bearing pulley device according to claim 1, characterized in that, The positioning hook has a first positioning protrusion on the side near the vehicle body, which is used to engage with the limiting block; the positioning hook has a second positioning protrusion extending downward at one end near the positioning block, which is used to engage with the positioning block.

3. The load-bearing pulley device according to claim 1, characterized in that, The positioning hook has a positioning hole for connecting with the pulley shaft, and the positioning hook above the positioning hole has a U-shaped groove.

4. The load-bearing pulley device according to claim 3, characterized in that, The vehicle body has a through hole running from left to right inside, which can be used to install the swing arm; the second side of the sliding cover has a downwardly extending protrusion structure, which is used to engage with the U-shaped groove of the positioning hole.

5. The load-bearing pulley device according to claim 1, characterized in that, Also includes: The vehicle body has a corresponding shaft hole in the groove, and the shaft hole is used to pass through the positioning shaft and the pulley shaft.

6. The load-bearing pulley device according to claim 4, characterized in that, Also includes; pulleys; The lower part of the vehicle body has two grooves, and pulleys are installed in the two grooves through pulley shafts. The pulleys can drive the vehicle body to slide on the slide rail.

7. The load-bearing pulley device according to claim 6, characterized in that, Also includes: Dust cover; The slot of the sliding cover is fitted with a dust cover.

8. The load-bearing pulley device according to claim 6, characterized in that, The sliding cover has a through hole, and the sliding cover is fixed to the vehicle body through the through hole by a positioning wheel washer, a positioning wheel and a positioning wheel rivet.

9. The load-bearing pulley device according to claim 5, characterized in that, The swing angle of the swing arm is from 0 degrees to 90 degrees.

10. A door or window, characterized in that, Includes the load-bearing pulley device according to any one of claims 1 to 9.

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