Sliding airtight window corner pulley and sliding door and window

Abstract

The utility model discloses a sliding airtight window corner pulley and a sliding door and window, and belongs to the technical field of door and window accessories. The device comprises a base which is provided with a guide chute; the bearing seat is arranged on the base in a sliding manner, a pulley is rotatably mounted on the bearing seat, and an inclined side pressing groove is formed in the bearing seat; the pull rod is arranged between the base and the bearing seat, one side of the pull rod is rotationally connected with a limiting rolling sleeve, the other side of the pull rod is rotationally connected with a sliding rolling sleeve, the limiting rolling sleeve is slidably arranged in the guide sliding groove, and the sliding rolling sleeve is slidably arranged in the side pressing groove. When the pull rod is pulled, the two sides of the pull rod interact with the base and the bearing seat through the limiting rolling sleeve and the sliding rolling sleeve correspondingly, so that transmission stress on the two sides of the pull rod is relatively balanced, the inclination phenomenon caused by single-side stress of the pull rod is effectively reduced, friction between the pull rod and other parts is reduced, and the long-term stability of the pull rod is guaranteed. In addition, the pull rod is located between the base and the bearing seat, and transmission of the pull rod can be more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of door and window accessories technology, and in particular to a sliding airtight window corner pulley and a sliding door and window. Background Technology

[0002] In the structure of sliding airtight windows, a guide wheel structure is incorporated to achieve lateral pressure sealing. This works by having a drive column on the pull rod slide along an inclined guide groove on the guide wheel, allowing the door / window to move laterally relative to the guide wheel, thus achieving lateral pressure sealing and improving airtightness. However, this structure suffers from a greater force on one side of the drive column, making the pull rod prone to tilting and compromising its stability. Utility Model Content

[0003] The purpose of this utility model is to provide a corner pulley for a sliding airtight window and a sliding door and window, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: a sliding airtight window corner pulley, comprising: a base with a guide groove; a bearing seat slidably disposed on the base along the length direction perpendicular to the guide groove, the pulley being rotatably mounted on the bearing seat, and the bearing seat having an inclined side pressure groove; a pull rod disposed between the base and the bearing seat, one side of the pull rod being rotatably connected to a limiting sleeve, and the other side being rotatably connected to a sliding sleeve, the limiting sleeve being slidably disposed on the guide groove, and the sliding sleeve being slidably disposed on the side pressure groove.

[0005] This technical solution has at least the following beneficial effects: When the pull rod is pulled, both sides interact with the base and bearing seat respectively through the limiting roller sleeve and sliding roller sleeve, thereby making the transmission force on both sides of the pull rod relatively balanced, effectively reducing the tilting phenomenon caused by unilateral force on the pull rod, reducing the friction between the pull rod and other components, and ensuring the long-term stability of the pull rod. In addition, the pull rod is located between the base and the bearing seat, which makes the transmission of the pull rod more stable and reliable.

[0006] As a further improvement to the above technical solution, the limiting sleeve and the sliding sleeve are coaxially distributed, making the transmission force on both sides of the pull rod more balanced and stable.

[0007] As a further improvement to the above technical solution, the pull rod is provided with a roller sleeve rivet, and the limiting roller sleeve and the sliding roller sleeve are respectively disposed at both ends of the roller sleeve rivet. This can improve the efficiency of relative force resistance on both sides of the pull rod and facilitate assembly.

[0008] As a further improvement to the above technical solution, it also includes a corner block installed on the base and a transmission plate slidably disposed on the corner block. The sliding directions of the two ends of the transmission plate are perpendicular to each other, and one end of the transmission plate is connected to one end of the pull rod. The corner block and the base are installed together to form a whole, which can improve the installation efficiency of door and window hardware. Moreover, the transmission plate is directly connected to the pull rod, which can shorten the distance between the corner position and the pulley, thereby better opening the distance between the two sets of pulleys. When the width of the door and window sash is the same, it can make the sliding of the door and window sash more stable and reliable.

[0009] As a further improvement to the above technical solution, the corner block is riveted to the base. Due to the small gap and strong fit of the riveting process, the overall design can effectively reduce the stroke loss during transmission.

[0010] As a further improvement to the above technical solution, a retaining edge is provided on one side of the base. When the sliding sleeve moves to one end of the side pressure groove, the sliding sleeve and the retaining edge clamp the bearing seat. This makes the bearing seat more stable and effectively improves the problem of door and window swaying.

[0011] As a further improvement to the above technical solution, four limiting blocks are provided on the top of the bearing housing, and four opening slots are provided on the outer side of the pull rod for the four limiting blocks to be respectively inserted and abutted. By using the four limiting blocks to restrict the two sliding directions of the pull rod, the reliability of the pull rod sliding relative to the bearing housing can be ensured.

[0012] As a further improvement to the above technical solution, a rotating shaft is provided through the base, and the bearing seat is rotatably connected to the base via the rotating shaft. The base and the bearing seat are stacked to restrict the rotation of the bearing seat relative to the base. The bearing seat can slide relative to the base along the circumferential direction of the rotating shaft, and the pulley is mounted on the rotating shaft. This interconnection of the base, bearing seat, and pulley via the rotating shaft results in a compact overall structure that facilitates rapid assembly, thereby improving assembly efficiency.

[0013] As a further improvement to the above technical solution, the base has a first through hole, the pull rod has a second through hole, and the pulley extends from the base away from the pull rod through the second through hole and the first through hole in sequence. The pulley is exposed on the surface of the base, allowing for a lower base height and a more compact overall structure. When used with a matching fan frame, the pulley slides within the fan frame, effectively utilizing the frame's profile space and significantly reducing the visible size of the fan frame, making it simpler and more aesthetically pleasing.

[0014] A sliding door / window includes a sash frame and a sliding airtight window corner pulley as described above, wherein the sash frame is provided with a clearance groove for the pulley to be inserted. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the overall structure of a corner pulley for a sliding airtight window according to an embodiment of the present invention;

[0017] Figure 2 This is a partial cross-sectional structural diagram of a corner pulley for a sliding airtight window according to an embodiment of the present invention;

[0018] Figure 3 This is an exploded structural diagram of a corner pulley for a sliding airtight window according to an embodiment of the present invention;

[0019] Figure 4 This is an exploded structural diagram of the base, pull rod, and bearing seat in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation between the pull rod and the bearing seat in an embodiment of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the corner block and the base in an embodiment of the present invention;

[0022] Figure 7 This is an exploded view of the corner block and the base in an embodiment of this utility model;

[0023] Figure 8 This is a cross-sectional structural diagram of the sliding roller sleeve and the retaining edge clamping bearing seat in an embodiment of this utility model;

[0024] Figure 9 This is a schematic diagram showing the relative positional relationship between the corner block and the bearing seat in an embodiment of the present invention when they are in a non-side-pressure state;

[0025] Figure 10 This is a schematic diagram showing the relative positional relationship between the corner block and the bearing seat in a lateral pressure state in an embodiment of this utility model;

[0026] Figure 11 This is an installation diagram of an embodiment of the present utility model;

[0027] Figure 12 This is a structural schematic diagram of a sliding door and window according to an embodiment of the present utility model.

[0028] 100, Base; 110, Guide groove; 120, Edge retainer; 200, Bearing seat; 210, Side pressure groove; 220, Pulley; 300, Limiting block; 310, Opening groove; 400, Tie rod; 410, Roller sleeve rivet; 420, Limiting roller sleeve; 430, Sliding roller sleeve; 440, Side pressure roller sleeve; 500, Corner block; 510, Transmission plate; 511, First connecting block; 512, Second connecting block; 600, Rotating shaft; 700, First through hole; 710, Second through hole; 720, Third through hole; 800, Sector frame; 810, Clearance groove; 900, Stepped groove; 910, Initial positioning block. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, 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 number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figure 1-11 The corner pulley of the sliding airtight window includes a base 100, a bearing seat 200, and a pull rod 400.

[0034] A first through hole 700 is provided in the middle of the base 100. Identical guide grooves 110 are provided on both sides of the base 100. A retaining edge 120 is integrally formed on both sides of the base 100. A rotating shaft 600 passes through both retaining edges 120, and the axis of the rotating shaft 600 is parallel to the length direction of the guide groove 110. A bearing seat 200 passes through the rotating shaft 600 and is positioned between the two retaining edges 120. The width of the bearing seat 200 is less than the distance between the two retaining edges 120, allowing the bearing seat 200 to slide relative to the base 100 along the axis of the rotating shaft 600. A pulley 220 is rotatably mounted on the rotating shaft 600. A third through hole 720 is provided in the middle of the bearing seat 200, and the pulley 220 is positioned within the third through hole 720.

[0035] It is understood that the rotating shaft 600 sequentially passes through a side flange 120, a bearing seat 200 on one side of the third through hole 720, a pulley 220, a bearing seat 200 on the other side of the third through hole 720, and another side flange 120. The base 100 and the bearing seat 200 are stacked together through direct or indirect contact, so that the bottom surface of the base 100 directly or indirectly abuts against the top surface of the bearing seat 200, restricting the rotation of the bearing seat 200 relative to the base 100. This ensures that the bearing seat 200 can only slide stably relative to the base 100 along the axial direction of the rotating shaft 600. Washers are fitted on both sides of the rotating shaft 600 where it is located near the pulley 220.

[0036] Identical side pressure grooves 210 are provided at both ends of the bearing housing 200 at the third through hole 720. The side pressure grooves 210 are inclined, that is, the line connecting the two ends of the side pressure groove 210 has a certain angle with the length direction of the guide groove 110. In this embodiment, the axis of the length direction of the side pressure groove 210 is arc-shaped.

[0037] The pull rod 400 is located between the bottom of the base 100 and the top of the bearing seat 200, that is, the base 100, the pull rod 400 and the bearing seat 200 are stacked in sequence.

[0038] A second through hole 710 is provided in the middle of the pull rod 400. Roller rivets 410 are inserted at both ends of the pull rod 400 within the second through hole 710. One end of the roller rivet 410 has a larger diameter head, and the other end has a smaller diameter rod. A limiting edge with a larger diameter than the head is also provided at the end of the head away from the rod. A limiting roller sleeve 420 and a sliding roller sleeve 430 are respectively fitted at both ends of the roller rivet 410, and the limiting roller sleeve 420 and the sliding roller sleeve 430 are located on opposite sides of the pull rod 400. That is, the roller rivet 410 passes sequentially through the sliding roller sleeve 430, the pull rod 400, and the limiting roller sleeve 420. The inner side of the sliding roller sleeve 430 is adapted to the outer side of the head of the roller rivet 410, and the sliding roller sleeve 430 has a limiting groove for the limiting edge of the roller rivet 410 to be inserted, thereby allowing the sliding roller sleeve 430 to be installed and ensuring that the sliding roller sleeve 430 has a large outer rolling surface. The stepped surface formed between the head of the rolling sleeve rivet 410 and the rod portion abuts against one side of the tie rod 400, thereby restricting the installation position of the rolling sleeve rivet 410. An isolation sleeve is installed at the end of the rolling sleeve rivet 410 away from the limiting edge, and the limiting rolling sleeve 420 is fitted over the isolation sleeve. This allows the limiting rolling sleeve 420 and the sliding rolling sleeve 430 to rotatably occupy positions on both sides of the tie rod 400, with the axes of the limiting rolling sleeve 420 and the sliding rolling sleeve 430 coinciding.

[0039] When the tie rod 400 is stacked between the base 100 and the bearing seat 200, the sliding sleeve 430 is inserted into the side pressure groove 210, and the limiting sleeve 420 passes through the guide groove 110.

[0040] In use, the base 100 is installed in the sash frame 800 with screws. A push-pull guide rail is provided at the installation position of the sash frame 800, and the bottom of the pulley 220 slides within the push-pull guide rail, thus enabling the sash frame 800 to open and close. When the pull rod 400 is pulled, it slides relative to the base 100 along the length of the guide groove 110. Under the guidance of the side pressure groove 210, the pull rod 400 and the base 100 move relative to the bearing seat 200 along a length perpendicular to the guide groove 110, creating a side pressure effect on the sash frame 800, thereby improving the airtightness of the door and window. Furthermore, the rotational force on both sides of the pull rod 400 is relatively balanced, effectively reducing the tilting phenomenon caused by unilateral force on the pull rod 400, reducing friction between the pull rod and other components, and ensuring the long-term stability of the pull rod. In addition, the tie rod 400 is located between the base 100 and the bearing seat 200, which makes the transmission of the tie rod 400 more stable and reliable, improves the efficiency of the relative resistance of the forces on both sides of the tie rod 400, and facilitates assembly.

[0041] In other embodiments, the limiting sleeve 420 and the sliding sleeve 430 can also be coaxially connected by bolts or other shaft components. In other embodiments, the axis of the limiting sleeve 420 and the axis of the sliding sleeve 430 may not coincide, but may be separated by a preset parallel distance.

[0042] The top of pulley 220 passes through the third through hole 720, the second through hole 710, and the first through hole 700, and then extends out to the top of the base 100. This minimizes the height of the base 100, resulting in a more compact overall structure. When used with a matching fan frame 800, the pulley 220 is inserted into the fan frame 800 for movement. This effectively utilizes the profile space of the fan frame 800, significantly reducing its visible size and making the fan frame 800 more concise and aesthetically pleasing.

[0043] Furthermore, the corner pulley of the sliding airtight window also includes a corner mechanism, which comprises a corner block 500 and a transmission plate 510. The transmission plate 510 is made of a soft, elastic material, such as a steel sheet. In this embodiment, the transmission plate 510 is composed of three steel sheets stacked together. In other embodiments, the transmission plate 510 may also consist of one steel sheet or be composed of two or more steel sheets stacked together. The two ends of the corner block 500 are perpendicularly distributed to each other. A groove is provided inside the corner block 500. The middle of the groove is curved and the length directions of the two ends are perpendicular to each other. The transmission plate 510 is slidably disposed in the groove, so that the two ends of the transmission plate 510 can slide at the two ends of the corner block 500 in mutually perpendicular directions, thereby realizing the change of different transmission directions at the two ends of the transmission plate 510. It should be noted that the reversing direction of the transmission plate 510 is on the side of the mounting direction of the base 100.

[0044] One end of the corner block 500 is riveted to the base 100, and one end of the transmission plate 510 is riveted to one end of the pull rod 400. This forms a stable integral structure between the corner block 500 and the base 100, improving the installation efficiency of door and window hardware. Furthermore, due to the small gap and robustness of the riveting process, the overall design effectively reduces stroke loss during transmission.

[0045] A first connecting block 511 is connected to the end of the transmission plate 510 away from the pull rod 400. The first connecting block 511 can be used to connect the transmission rod of the door / window handle. When the door / window handle is operated, the pull rod 400 can be moved by rotating the rod and the transmission plate 510, thereby enabling the side-pressing operation of the door / window when it is locked. A second connecting block 512 is installed at the end of the pull rod 400 away from the transmission plate 510. The second connecting block 512 can be used to install a connecting rod, thereby facilitating the connection of two adjacent pull rods 400 on the same side.

[0046] When the pull rod 400 is moved, causing the sliding sleeve 430 to move to one end of the side pressure groove 210, the sliding sleeve 430 abuts against one side of the side pressure groove 210, causing the bearing seat 200 to abut against the inner side of the corresponding side retaining edge 120. At this time, the sliding sleeve 430 and the retaining edge 120 clamp the bearing seat 200, thereby making the position of the base 100 relative to the bearing seat 200 very stable, thus reducing the shaking of doors and windows.

[0047] Limiting blocks 300 are integrally formed at the four corners of the top surface of the bearing housing 200. The height of the limiting blocks 300 is slightly greater than the thickness of the pull rod 400 to ensure that the pull rod 400 has enough pulling space and to prevent the pull rod 400 from getting stuck. It can be understood that the bearing housing 200 is stacked with the base 100 through the limiting blocks 300.

[0048] Both ends of the pull rod 400 have opening slots 310, which are right-angled, resulting in a wider middle section and narrower ends for the pull rod 400. The middle section of the pull rod 400 is located in the space enclosed by four limiting blocks 300. When the pull rod 400 moves to the ends of the sliding range, two adjacent sides of one limiting block 300 abut against the sidewall of the opening slot 310 of the pull rod 400, and one side of the other limiting block 300 on the same side abuts against one side of the pull rod 400. This allows the four limiting blocks 300 to restrict the relative sliding of the pull rod 400, improving the reliability of the pull rod 400 sliding relative to the bearing seat 200.

[0049] A stepped groove 900 is provided at one end of the corner block 500 that is connected to the base 100. The end of the bearing seat 200 is adapted to the stepped groove 900, so that when the bearing seat 200 slides relative to the corner block 500, the side wall of the stepped groove 900 can restrict the bearing seat 200, thereby improving the stability of the bearing seat 200 when it moves relative to the corner block 500 under lateral pressure.

[0050] An initial positioning block 910 is installed on the side of the corner block 500 away from the connecting base 100. The initial positioning block 910 can assist the corner block 500 in being installed on the fan frame 800. Side pressure rollers 440 are installed at the bottom of the bearing housing 200 and at both ends of the third through hole 720. One side of the side pressure roller 440 abuts against the push-pull guide rail, thereby providing more stable support for the bearing housing 200.

[0051] Reference Figure 12A sliding door and window includes a sash frame 800 and the aforementioned sliding airtight window corner pulley. The sash frame 800 has a clearance groove 810 on the side where the base 100 is installed. When the base 100 is installed on the sash frame 800, the pulley 220 extending out of the base 100 is in the clearance groove 810, thereby effectively utilizing the profile space of the sash frame 800, greatly reducing the visible size of the sash frame 800, and making the sash frame 800 more concise and beautiful.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A corner pulley for a sliding airtight window, characterized in that, include: The base has guide grooves; The bearing housing is slidably disposed on the base along the length direction perpendicular to the guide groove. The bearing housing is rotatably mounted with a pulley and has an inclined side pressure groove. A pull rod is disposed between the base and the bearing seat. A limiting sleeve is rotatably connected to one side of the pull rod, and a sliding sleeve is rotatably connected to the other side. The limiting sleeve is slidably disposed in the guide groove, and the sliding sleeve is slidably disposed in the side pressure groove.

2. The corner pulley for a sliding airtight window according to claim 1, characterized in that: The limiting roller sleeve and the sliding roller sleeve are coaxially distributed.

3. The corner pulley for a sliding airtight window according to claim 2, characterized in that: The pull rod is fitted with a roller sleeve rivet, and the limiting roller sleeve and the sliding roller sleeve are respectively disposed at both ends of the roller sleeve rivet.

4. The corner pulley for a sliding airtight window according to claim 1, characterized in that: It also includes a corner block installed on the base and a transmission plate slidably disposed on the corner block. The sliding directions of the two ends of the transmission plate are perpendicular to each other, and one end of the transmission plate is connected to one end of the pull rod.

5. The corner pulley for a sliding airtight window according to claim 4, characterized in that: The corner block is riveted to the base.

6. The corner pulley for a sliding airtight window according to claim 1, characterized in that: The base has a retaining edge on one side. When the sliding sleeve moves to one end of the side pressure groove, the sliding sleeve and the retaining edge clamp the bearing seat.

7. The corner pulley for a sliding airtight window according to claim 1, characterized in that: The bearing housing is provided with four limiting blocks at its top, and the pull rod is provided with four opening slots on its outer side, each of which allows the four limiting blocks to be inserted and abutted.

8. The corner pulley for a sliding airtight window according to claim 1, characterized in that: The base is provided with a rotating shaft, and the bearing seat is rotatably connected to the base through the rotating shaft. The base and the bearing seat are stacked to restrict the rotation of the bearing seat relative to the base. The bearing seat can slide relative to the base along the circumferential direction of the rotating shaft, and the pulley is installed on the rotating shaft.

9. The corner pulley for a sliding airtight window according to claim 1, characterized in that: The base has a first through hole, the pull rod has a second through hole, and the pulley extends out of the base from the second through hole and the first through hole to the side away from the pull rod.

10. A sliding door and window, characterized in that: The device includes a sash frame and a corner pulley for a sliding airtight window as described in claim 9, wherein the sash frame is provided with a clearance groove for the pulley to be inserted.

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