Novel roller skating group structure for sliding door and window

Abstract

The utility model discloses a novel pulley block structure for a sliding door and window, which is detachable and convenient to maintain, and is provided with two groups of pulley components, so that the stability is better. The technical problem to be solved by the utility model is solved by the following technical means: the novel pulley block structure for the sliding door and window is characterized by comprising a pulley yoke, the pulley yoke comprises vertical support leg walls distributed on two sides and in the middle along the length direction and a horizontal connecting wall connected with the vertical support leg walls, and the horizontal connecting wall is connected with the vertical support leg walls. A plurality of groups of shaft holes are uniformly formed in the middle parts of the vertical supporting leg walls along the length direction, and two adjacent vertical supporting leg walls form two pulley mounting cavities; the cover plate is provided with a plurality of pulley exposure holes communicated with the pulley mounting cavity, the pulley exposure holes are positioned above the shaft holes in the same group, and the cover plate is detachably mounted at the upper part of the pulley yoke; the pulley assembly is provided with a pulley shaft and an outer wheel body, and the pulley shaft is inserted into the shaft hole so that the pulley assembly can be arranged in the pulley installation cavity in a sleeved mode. The utility model relates to the technical field of sliding doors and windows.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding doors and windows, in particular to a novel roller pulley structure for sliding doors and windows. Background Art

[0002] A Chinese patent with publication number CN208040135U discloses an integrated panoramic sliding door and window roller row. In this solution, the horizontal connecting wall and the vertical connecting wall of the roller frame are integrally formed, which is inconvenient for the maintenance of the rollers. A group of rollers are installed. With the development of ultra-quiet door and window technology, this solution has poor stability and high noise when used on heavy doors and windows. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a new type of roller pulley structure for sliding doors and windows, which is easy to disassemble, making the later maintenance cost lower, and is applied to heavy doors and windows, which is quieter and more stable.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A new type of roller pulley structure for sliding doors and windows, characterized in that it includes a pulley frame, the pulley frame includes vertical support foot walls distributed on both sides and the middle along the length direction, horizontal connecting walls connecting the vertical support foot walls, and multiple groups of axial holes are evenly arranged in the middle of the vertical support foot walls along the length direction, and two adjacent vertical support foot walls form two pulley mounting cavities; a cover plate, a plurality of pulley exposure holes are distributed on the cover plate and communicated with the pulley mounting cavity, the pulley exposure holes are located above the same group of axial holes, and the cover plate can be detachably mounted on the upper part of the pulley frame; a pulley assembly, the pulley assembly is provided with a pulley shaft and an outer wheel body, the pulley shaft is inserted into the axial hole to sleeve the pulley assembly in the pulley mounting cavity.

[0006] According to some embodiments of the utility model, a clamping portion is provided on the upper portion of the vertical support foot walls on both sides of the pulley frame, and a cover plate clamping portion adapted to the clamping portion is provided on both sides of the cover plate, which functions to clamp the cover plate and the pulley frame.

[0007] According to some embodiments of the present invention, the pulley assembly includes a pulley shaft, an outer wheel body, a bearing mounted on the pulley shaft and embedded in the outer wheel body, and a gasket mounted between the bearing and the vertical support foot wall.

[0008] According to some embodiments of the present invention, the middle portion of the outer wheel body is concave to form an abutting portion abutting against the outside.

[0009] According to some embodiments of the present utility model, the horizontal connecting wall is provided with a clearance groove corresponding to the exposed hole of the pulley.

[0010] According to some embodiments of the present utility model, the shaft holes on the vertical support leg walls on one side of the pulley frame are staggeredly distributed with the shaft holes on the vertical support leg walls on the other side.

[0011] According to some embodiments of the present utility model, the distance between two adjacent pulley assemblies in the same side direction is 80 mm - 120 mm.

[0012] According to some embodiments of the present utility model, it further includes a bottom frame profile and a support strip. Two installation grooves for accommodating the support strip are arranged along the length direction at the bottom of the bottom frame profile. One end of the support strip is installed in the installation groove, and the other end protrudes from the bottom of the bottom frame profile and abuts against the abutting portion of the outer wheel body.

[0013] According to some embodiments of the present utility model, the material of the outer wheel body is POM polyoxymethylene material.

[0014] In summary, the beneficial effects of the present utility model are as follows: By adding at least 1 vertical support leg wall in the middle of the pulley frame, the pulley installation cavity is divided into 2 independent installation cavities, enabling the installation of two rows of pulley groups. The two rows of pulley groups can be arranged side by side or staggeredly, making the use more flexible. In heavy-duty doors and windows, the staggeredly arranged pulley groups have better effects in terms of stability and sound insulation; by providing a cover plate, it is more convenient to maintain the pulley group. Only by opening the cover plate can the replacement of the damaged pulley group and the cleaning of foreign matters such as dust accumulated in the pulley be completed; by providing an inwardly concave abutting portion, when the bottom frame profile of the door and window is actually installed, even if the pulley group is not installed flatly, it can still be well abutted, with stronger applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded structural schematic diagram of Embodiment 1 of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged view of Part A of

[0017] Figure 3 is an axial sectional view of Embodiment 1 of the present utility model along the axis of the pulley shaft;

[0018] Figure 4 is an axial sectional view of Embodiment 2 of the present utility model along the axis of the pulley shaft;

[0019] Reference numerals: 1. Pulley frame; 11. Vertical support leg wall; 11a. Shaft hole; 11b. Clamping portion; 12. Horizontal connecting wall; 12a. Relief groove; 13. Pulley installation groove; 2. Cover plate; 21. Cover plate clamping portion; 2a. Pulley exposed hole; 3. Pulley assembly; 31. Pulley shaft; 32. Bearing; 33. Gasket; 34. Outer wheel body; 34a. Abutting portion; 4. Bottom frame profile; 41. Installation groove; 5. Support strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0021] In the description of the present utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention 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. Therefore, it should not be construed as limiting the present invention.

[0022] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and 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. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not 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.

[0023] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. 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 invention in combination with the specific content of the technical solution.

[0024] Embodiment 1:

[0025] As Figures 1 to 3 shown, a new type of roller skating group structure for a push-pull door and window according to an embodiment of the present utility model includes a pulley frame 1. The pulley frame 1 includes vertical support foot walls 11 distributed on both sides and in the middle along the length direction, a horizontal connection wall 12 connecting the vertical support foot walls 11. A plurality of shaft holes 11a are uniformly arranged in the middle of the vertical support foot walls 11 along the length direction, and two adjacent vertical support foot walls 11 form two pulley installation cavities 13; a cover plate 2. A plurality of pulley exposed holes 2a are distributed on the cover plate 2 in communication with the pulley installation cavities 13. The pulley exposed holes 2a are located above the same group of shaft holes 11a. The cover plate 2 is detachably installed on the upper part of the pulley frame 1; a pulley assembly 3. The pulley assembly 3 is provided with a pulley shaft 31 and an outer wheel body 34. The pulley shaft 31 is inserted into the shaft hole 11a to sleave the pulley assembly 3 in the pulley installation cavity 13.

[0026] Specifically, by providing two vertical connecting walls 11 in the middle of the pulley frame 1, the two vertical connecting walls 11 in the middle respectively form two independent pulley mounting cavities 13 with the vertical connecting walls 11 on both sides. At this time, the shaft holes 11a of the two vertical connecting walls 11 that form the independent pulley mounting cavity 13 can be coaxial with the shaft holes 11a of another pulley mounting cavity 13, or they can be non - coaxial. Each pulley mounting cavity 13 can be separately installed with multiple pulley assemblies 3. The width of the pulley assembly 3 is slightly smaller than the width of the pulley mounting cavity 13. There are multiple groups of corresponding shaft holes 11a on the vertical mounting walls 11 on both sides inside the pulley mounting cavity 13. The pulley assembly 3 is fixedly installed on the shaft holes 11a inside the pulley mounting cavity 13 through the pulley shaft 31, and the upper part of the outer wheel body 34 passes through the pulley exposed hole 2a and thus is exposed outside the cover plate 2.

[0027] In some specific embodiments of the present utility model, a clamping portion 11b is provided on the upper part of the vertical support leg walls 11 on both sides of the pulley frame 1, and a cover plate clamping portion 21b adapted to the clamping portion 11b is provided on both sides of the cover plate 2, and its function is to clamp the cover plate 2 and the pulley frame 1.

[0028] Specifically, the clamping portion 11b is provided on the vertical support leg walls 11 on both sides, and the cover plate clamping portion 21b is provided on both sides of the cover plate, so that the two can be clamped to each other. When maintenance of the pulley group is required, just pry it open at the clamping portion 11b with force to open the cover plate 2. After the maintenance is completed, close the cover plate 2 with force to close it.

[0029] In some specific embodiments of the present utility model, the pulley assembly includes a pulley shaft 31, an outer wheel body 34, a bearing 32 installed on the pulley shaft 31 and embedded inside the outer wheel body 34, and a gasket 33 installed between the bearing 32 and the vertical support leg wall 11.

[0030] Specifically, the bearing 32 and the gasket 33 are installed on the pulley shaft 31, the bearing 32 is embedded into the outer wheel body 34. The bearing 32 can be as long as the outer wheel body 34, in which case only two bearings 32 are needed, or two small bearings 32, in which case the two bearings are evenly distributed on both sides of the outer wheel body 34. There are two gaskets 33, which are respectively distributed in the middle of the bearings 32 on both sides and the vertical support leg wall 11. The pulley shaft 31 fixedly installs the pulley assembly 3 in the pulley mounting cavity 13. The gasket 33 can assist the bearing 32 to slide and at the same time plays a limiting role for the bearing 32.

[0031] In some specific embodiments of the present utility model, a contact portion 34a for contacting the outside is formed by concave - inwarding in the middle of the outer wheel body 34.

[0032] Specifically, the concave abutment portion 34a can effectively limit the support bar 5 when abutting against the support bar 5, so that the support bar 5 will not deviate during the sliding process; and when the pulley block is unevenly installed, the support bar 5 will still not shift sideways during the sliding process.

[0033] In some specific embodiments of the present invention, the horizontal connecting wall 12 is provided with a clearance groove 12a corresponding to the pulley exposed hole 2a.

[0034] Specifically, when the diameter of the outer wheel body 34 is larger, the outer wheel body 34 can pass through the clearance groove 12a and be installed on the axial hole 11a. Dust and other foreign matter generated in the installation cavity 13 can fall to the bottom through the clearance groove 12a, keeping the installation cavity 13 clean and improving the service life.

[0035] In some specific embodiments of the present invention, the shaft holes 11 a on the vertical support foot wall 11 on one side of the pulley frame 1 are staggered with the shaft holes 11 a on the vertical support foot wall 11 on the other side.

[0036] Specifically, the staggered distribution method can make the load-bearing capacity of the entire pulley group structure more uniform, and it is more stable when used on heavy doors and windows to achieve a silent effect.

[0037] In some specific embodiments of the present invention, the distance between two adjacent pulley assemblies 3 on the same side is 80 mm-120 mm.

[0038] In some specific embodiments of the present invention, a frame bottom profile 4 and a support bar 5 are further included. Two mounting grooves 41 for accommodating the support bar 5 are provided at the bottom of the frame bottom profile 4 along the length direction. One end of the support bar 5 is installed in the mounting groove 41, and the other end protrudes from the bottom of the frame bottom profile 4 and abuts against the abutment portion 34a of the outer wheel body 34.

[0039] Specifically, the frame bottom profile 4 is the profile at the bottom of the door and window frame. By setting the installation groove 41, the support bar 5 can be quickly installed in the frame bottom profile 4. The other end of the support bar 5 is exposed at the bottom of the frame bottom profile 4, and the outer wheel body 34 is exposed at the cover plate 2, so that the frame bottom profile 4 installed with the support bar 5 will not contact other obstacles during the sliding process with the outer wheel body 34 to ensure smoothness.

[0040] In some specific embodiments of the present invention, the outer wheel body 34 is made of POM polyoxymethylene material.

[0041] Specifically, the POM polyoxymethylene material has the characteristics of wear resistance, tensile resistance, corrosion resistance and compression resistance, which makes its use effect better during use.

[0042] Embodiment 2:

[0043] This embodiment provides that a vertical connecting wall 11 is provided in the middle of the pulley frame 1. Refer to Figure 1 , Figure 2 , Figure 4 shown. The difference between this embodiment and the first embodiment is that a middle connecting wall 11 is provided in the middle of the pulley frame 1.

[0044] Specifically, when there is only one vertical connecting wall 11 provided in the middle, the vertical connecting wall 11 in the middle respectively forms independent pulley installation cavities 13 with the vertical connecting walls 11 on both sides. When the pulley assemblies 3 in the two pulley installation cavities 13 are coaxially arranged, at this time, only one pulley shaft 31 can pass through the shaft holes 11a on the three vertical connecting walls 11 to install and fix the two groups of pulley assemblies 3. When the pulley assemblies 3 in the two pulley installation cavities 13 are staggeredly arranged, at this time, the middle numerical connecting wall 11 needs to be respectively provided with shaft holes 11a corresponding to the vertical connecting walls 11 on both sides.

Claims

1. A new type of roller pulley structure for sliding doors and windows, characterized in that: include The pulley frame includes vertical support foot walls distributed on both sides and in the middle along the length direction, a horizontal connecting wall connecting the vertical support foot walls, a plurality of groups of axial holes are evenly arranged in the middle of the vertical support foot walls along the length direction, and two adjacent vertical support foot walls form two pulley installation cavities; A cover plate, wherein a plurality of pulley exposure holes are distributed and opened on the cover plate so as to communicate with the pulley installation cavity, and the pulley exposure holes are located above the same group of shaft holes, and the cover plate is detachably mounted on the upper part of the pulley frame; The pulley assembly is provided with a pulley shaft and an outer wheel body. The pulley shaft is inserted into the shaft hole and the pulley assembly is sleeved in the pulley installation cavity.

2. A new type of roller pulley structure for sliding doors and windows according to claim 1, characterized in that: The upper parts of the vertical supporting foot walls on both sides of the pulley frame are provided with clamping parts, and the cover plate clamping parts matched with the clamping parts are provided on both sides of the cover plate, and their function is to clamp the cover plate and the pulley frame.

3. The new roller pulley structure for sliding doors and windows according to claim 1 is characterized in that: The pulley assembly comprises a pulley shaft, an outer wheel body, a bearing installed on the pulley shaft and embedded in the outer wheel body, and a gasket installed between the bearing and the vertical support foot wall.

4. The new roller pulley structure for sliding doors and windows according to claim 1, characterized in that: The middle part of the outer wheel body is concave to form an abutting part abutting against the outside.

5. The new roller pulley structure for sliding doors and windows according to claim 1, characterized in that: The horizontal connecting wall is provided with a clearance groove corresponding to the pulley exposed hole.

6. The new roller pulley structure for sliding doors and windows according to claim 1, characterized in that: The axial holes on the vertical supporting foot wall on one side of the pulley frame are staggered with the axial holes on the vertical supporting foot wall on the other side.

7. A new type of roller pulley structure for sliding doors and windows according to claim 6, characterized in that: The distance between two adjacent pulley assemblies on the same side is 80mm-120mm.

8. The new roller pulley structure for sliding doors and windows according to claim 4, characterized in that: It also includes a frame bottom profile and a support bar. The bottom of the frame bottom profile is provided with two installation grooves for accommodating the support bar along the length direction. One end of the support bar is installed in the installation groove, and the other end protrudes from the bottom of the frame bottom profile and abuts against the abutment portion of the outer wheel body.

9. The new roller pulley structure for sliding doors and windows according to claim 1, characterized in that: The outer wheel body is made of POM polyoxymethylene material.

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