Ground rail door pulley
By designing a ground rail door pulley that can swing up, down, left and right, the existing pulleys are solved for the problem of uneven tracks not smoothly and derailing on uneven tracks, and the smoothness and safety of sliding are achieved.
Patent Information
- Application Number
- CN202421750941.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-23
AI Technical Summary
When existing door and window ground rail pulleys encounter incomplete horizontal ground rails, the pulleys cannot fully contact the ground rails, resulting in poor sliding of doors and windows and easy derailment, posing safety hazards.
A ground rail door pulley is designed, which includes a base, a first support, a second rotation shaft, a second support and a pulley. The first support hinged by the first rotary shaft and the second support hinged by the second rotary shaft can be swung up and down, left and right, so that the pulley can be fitted to the track and ensure smooth sliding.
This design allows the pulley to swing in four directions on uneven tracks, up, down, left and right, maximize the adaptation to uneven tracks, ensure smooth sliding of the ground rail door, reduce the risk of derailment, and improve safety.
Smart Images
Figure CN222976650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door and window fittings, in particular to a floor track door pulley. Background Art
[0002] Sliding doors and sliding windows are widely used in real life. However, due to different degrees of linear tolerances and non-orthogonal tolerances in the manufacturing and installation processes of doors and windows, derailment and jamming phenomena occur during the use of sliding doors and windows. Therefore, floor track pulleys need to be installed to enable the smooth movement of sliding doors or windows. The upper part of the pulley is connected to the door leaf or window sash, and the lower part slides along the floor track with the pulley.
[0003] For existing floor track pulleys of doors and windows, one type is that the pulley is fixedly riveted to the pulley. When the floor track is not completely horizontal, the pulley on the pulley cannot be in full contact with the floor track. This not only causes the doors and windows to slide smoothly, but also easily leads to derailment of the doors and windows, causing unnecessary dangers. Summary of the Utility Model
[0004] The utility model provides a floor track door pulley, aiming to solve at least one of the technical problems existing in the prior art.
[0005] The technical solution of the utility model relates to a floor track door pulley, which is characterized by comprising:
[0006] A base,
[0007] A first support, which is hinged to the lower part of the base through a first rotating shaft, and the first rotating shaft is arranged in the left-right direction;
[0008] A second rotating shaft, the shaft body of which is hinged to the first support, and the second rotating shaft is arranged in the front-back direction;
[0009] Two second supports, which are respectively arranged on the front and rear sides of the first support and are respectively hinged to the second rotating shaft. The left and right sides of the second support are respectively hinged with pulleys through third rotating shafts.
[0010] According to some embodiments of the utility model, the second rotating shaft is hinged to the lower side of the second support and is located below the first rotating shaft and the third rotating shaft.
[0011] According to some embodiments of the utility model, a limiting step is arranged on the lower end surface of the base, and the limiting step is used to limit the displacement amount of the left and right swing of the pulley.
[0012] According to some embodiments of the utility model, a limiting member is further included, and the limiting member is arranged on the outer side of the second support and is used to limit the second rotating shaft within the second support.
[0013] According to some embodiments of the present utility model, arc-shaped limiting portions are provided on both the front side and the rear side of the second support, and a washer is further provided between the limiting member and the second support. The arc-shaped limiting portion is used to provide guiding and limiting effects for the assembly of the washer.
[0014] According to some embodiments of the present utility model, a triangular plate is provided below the base, and the first support is hinged to the triangular plate through the first rotating shaft.
[0015] According to some embodiments of the present utility model, there are two first supports, and the two first supports are distributed below the base in the front-rear direction.
[0016] According to some embodiments of the present utility model, a plurality of positioning columns are provided on the upper surface of the base, and the positioning columns are used for assembling the ground rail door.
[0017] The beneficial effects of the present utility model are as follows:
[0018] 1. By using the base to support the ground rail door, when encountering an uneven track, since the first support is hinged to the base below through the first rotating shaft, the two second supports can swing up and down around the first rotating shaft through the first support, and at the same time, the second support itself can swing left and right around the axis of the second rotating shaft, so that the pulleys on the front, rear, left, and right sides can all fit on the track, ensuring smooth sliding of the ground rail door. Description of the Drawings
[0019] Figure 1 is a schematic structural diagram of a ground rail door pulley according to an embodiment of the present utility model;
[0020] Figure 2 is Figure 1 a cross-sectional view of a ground rail door pulley shown;
[0021] Figure 3 is a schematic structural diagram of the second support according to an embodiment of the present utility model.
[0022] Reference Numerals in the Drawings:
[0023] Base 100, limiting step 110, triangular plate 120, positioning column 130;
[0024] First support 200, first rotating shaft 210;
[0025] Second rotating shaft 300;
[0026] Second support 400, arc-shaped limiting portion 401, pulley 410, third rotating shaft 420, limiting member 430. Detailed Embodiments
[0027] The following content will describe several embodiments of the present utility model, including the embodiments corresponding to the attached drawings. It can be understood that the attached drawings are used to assist in understanding the technical features and technical solutions of the present utility model, and should not be construed as limiting the protection scope of the present utility model.
[0028] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the attached drawings, so as to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.
[0029] It should be noted that unless otherwise clearly defined, when a certain feature is referred to as "fixed", "connected", "installed", "set" on another feature, it can be directly "fixed", "connected", "installed", "set" on another feature, or indirectly "fixed", "connected", "installed", "set" on another feature. The words such as "fixed", "connected", "installed", "set" should be understood in a broad sense, and those skilled in the technical field can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0030] It should be noted that the descriptions of the orientation or positional relationship indicated by up, down, left, right, top, bottom, front, back, inside, outside, etc. in the present utility model are based on the orientation or positional relationship of the attached drawings or embodiments, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.
[0031] It should be noted that the term "and / or" used in the present utility model includes any combination of one or more of the related listed items. The meaning of several is one or more, and the meaning of multiple is at least two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number.
[0032] It should be noted that if the first and second are described in the present utility model, it is only for the purpose of distinguishing technical features, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0033] It should be noted that unless otherwise clearly defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present application. The terms used in the description of this specification are only for describing specific embodiments, rather than for limiting the present utility model.
[0034] Refer to Figures 1 to 3, A ground track door pulley according to the present utility model includes: a base 100, a first support 200, which is hinged below the base 100 through a first rotating shaft 210, and the first rotating shaft 210 is arranged in the left-right direction; a second rotating shaft 300, the shaft body of which is hinged to the first support 200, and the second rotating shaft 300 is arranged in the front-back direction; two second supports 400, which are respectively arranged on the front and rear sides of the first support 200 and are respectively hinged to the second rotating shaft 300, and pulleys 410 are respectively hinged to the left and right sides of the second support 400 through third rotating shafts 420.
[0035] It can be understood that in the above solution, the first support 200 can swing up and down around the first rotating shaft 210, so that the second rotating shaft 300 can swing along with the first support 200. The two second supports 400 connected to the front and rear sides of the second rotating shaft 300 can swing up and down, so that the pulleys 410 on the two second supports 400 can swing up and down to adapt to the uneven track in the front and back. At the same time, the second support 400 itself can swing left and right around the second rotating shaft 300, so that the pulleys 410 on the left and right sides of the second support 400 can swing left and right, so that the pulleys 410 under the entire base 100 can swing in four directions of up, down, left and right, maximizing the adaptation to the uneven track and ensuring the smooth sliding of the ground track door.
[0036] Applying the above ground track door pulley 410 device has at least the following beneficial effects: The ground track door is supported by the base 100. When encountering an uneven track, since the first support 200 is hinged below the base 100 through the first rotating shaft 210, the two second supports 400 can swing up and down around the first rotating shaft 210 through the first support 200. At the same time, the second support 400 itself can swing left and right around the axis of the second rotating shaft 300, so that the pulleys 410 on the front, back, left and right sides can all fit on the track, ensuring the smooth sliding of the ground track door.
[0037] According to some embodiments of the present utility model, the second rotating shaft 300 is hinged to the lower side of the second support 400 and is located below the first rotating shaft 210 and the third rotating shaft 420. By placing the second rotating shaft 300 on the lower side of the second support 400 and lower than the axes of the first rotating shaft 210 and the third rotating shaft 420, the center of gravity of the entire ground track door pulley is lowered. After reducing the overall center of gravity, the pulley 410 can automatically return by relying on the weight of the ground track door, increasing the stability of the overall structure.
[0038] According to some embodiments of the present utility model, a limiting step 110 is provided on the lower end surface of the base 100. The limiting step 110 is used to limit the displacement amount of the left and right swing of the pulley 410. The maximum amplitude of the left and right swing of the pulley 410 is limited by the limiting step 110 to prevent the pulley 410 from not being able to reset due to too large a swing angle.
[0039] According to some embodiments of the present utility model, it further includes a limiting member 430. The limiting member 430 is arranged on the outer side of the second support 400, and the limiting member 430 is used to limit the second rotating shaft 300 within the second support 400.
[0040] According to some embodiments of the present utility model, arc-shaped limiting portions 401 are provided on both the front side and the rear side of the second support 400. A washer is further provided between the limiting member 430 and the second support 400. The arc-shaped limiting portions 401 are used to provide guiding and limiting effects for the assembly of the washer. By adding the arc-shaped limiting portions 401, it is convenient for the assembly of the washer during the production and assembly process, and is used to improve production efficiency.
[0041] According to some embodiments of the present utility model, a triangular plate 120 is provided below the base 100, and the first support 200 is hinged to the triangular plate 120 through a first rotating shaft 210.
[0042] According to some embodiments of the present utility model, there are two first supports 200, and the two first supports 200 are distributed along the front-rear direction below the base 100, increasing the weighing area below the base 100 and reducing the pressure on the track at a local area.
[0043] According to some embodiments of the present utility model, a plurality of positioning columns 130 are provided on the upper surface of the base 100, and the positioning columns 130 are used for assembling the ground rail door.
[0044] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" can be used to describe several embodiments of the present utility model. The specific features, structures, materials or characteristics in several embodiments can be combined under the premise of conforming to the principles and purposes of the present utility model.
[0045] Although some embodiments of the present utility model have been shown and described in this specification, the present utility model should not be limited to the above embodiments. As long as it achieves the technical effects of the present utility model by the same or equivalent means, all changes, modifications, equivalent replacements, and equivalent variations made to these embodiments without departing from the principles and purposes of the present utility model within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure, and should be considered to belong to the scope of protection of the present utility model.
Claims
1. A floor rail door pulley, characterized in that: include: Base, A first support, hinged to the bottom of the base through a first rotating shaft, wherein the first rotating shaft is arranged along the left-right direction; A second rotating shaft, the shaft body of which is hingedly connected to the first support, and the second rotating shaft is arranged along the front-back direction; Two second supports are respectively arranged at the front and rear sides of the first support and are respectively hinged to the second rotating shaft. The left and right sides of the second support are respectively hinged to pulleys through the third rotating shaft.
2. A floor rail door pulley according to claim 1, characterized in that: The second rotating shaft is hinged to the lower side of the second support and is located at the lower side of the first rotating shaft and the third rotating shaft.
3. A floor rail door pulley according to claim 2, characterized in that: A limiting step is provided on the lower end surface of the base, and the limiting step is used to limit the displacement of the left and right swing of the pulley.
4. A floor rail door pulley according to claim 1, characterized in that: It also includes a limiting member, which is arranged on the outer side of the second support and is used to limit the second rotating shaft within the second support.
5. A floor rail door pulley according to claim 4, characterized in that: The front side and the rear side of the second support are both provided with arc-shaped limiting parts, and a gasket is further provided between the limiting member and the second support, and the arc-shaped limiting part is used to provide a guiding and limiting effect for the assembly of the gasket.
6. The floor rail door pulley according to claim 1, characterized in that: A triangular plate is provided below the base, and the first support is hinged to the triangular plate through the first rotating shaft.
7. A floor rail door pulley according to claim 6, characterized in that: Two first supports are provided, and the two first supports are distributed below the base along the front-to-back direction.
8. A floor rail door pulley according to any one of claims 1 to 7, characterized in that: The upper surface of the base is provided with a plurality of positioning columns, and the positioning columns are used for assembling the floor rail door.