Pulley assembly for side pressure sliding window

Abstract

The utility model relates to the technical field of door and window sliding devices, and discloses a pulley assembly for a side pressure sliding window, which comprises a plurality of rollers and further comprises a mounting frame, a movable frame with an opening on one side is arranged in the mounting frame, and symmetrical fixed shafts penetrating through the movable frame are fixedly connected between opposite side walls in the mounting frame. The movable frame can move in the mounting frame along the fixed shaft, the plurality of rollers are rotatably connected in the movable frame, a gap is formed between the bottom in the mounting frame and the side, away from the opening, of the movable frame, and symmetrical arc-shaped plates with one open side are fixedly mounted at the bottom in the mounting frame. According to the utility model, the balls, the fixed shaft and the like are arranged, the mounting frame moves left and right on the movable frame through the matching of the fixed shaft and the balls, and the friction coefficient between the mounting frame and the movable frame during relative movement is reduced by the balls, so that people can conveniently move the whole door and window along the track and in the direction vertical to the track; and the service life of the whole pulley assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window sliding devices, in particular to a pulley assembly for a side-pressure sliding window. Background Art

[0002] The side-pressure sliding design allows doors and windows to be opened horizontally instead of the traditional inward or outward opening. This design not only saves indoor space, but also improves the sealing of doors and windows. Therefore, more and more side-pressure sliding doors and windows are put into use on the market. Pulley assemblies are required when installing sliding doors and windows.

[0003] In order to improve the stability of side-pressure sliding doors and windows during sliding, the prior art has made many improvements to the pulley assembly for side-pressure sliding doors and windows. For example, the patent with patent publication number CN220203685U discloses a pulley assembly for a side-pressure sliding window system, including a pulley outer frame, an adjusting balance frame, a balance frame shaft, a wheel, a pulley shaft, an adjusting pulley assembly and a guide wheel assembly. The adjusting balance frame is arranged in the pulley outer frame, and the wheel is fixedly mounted on the adjusting balance frame through the pulley shaft. The wheel is located in the mounting groove of the inclined structure of the sash frame, the balance frame shaft passes through the adjusting balance frame inside the pulley outer frame and is installed on the pulley outer frame, the adjusting pulley assembly passes through the pulley outer frame and is connected to the adjusting balance frame, and the top of the guide wheel assembly is mounted on one side of the pulley outer frame, and the bottom is mounted on the track of the sash frame. The pulley assembly for the side-pressure sliding window system provided by the utility model can satisfy the functions of left and right pushing and pulling, as well as the functions of inside-outside translation, and has a positioning wheel, which can ensure stability during pushing and pulling or side-pressure, thereby avoiding shaking.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] During use, the side-pressure sliding doors and windows in the prior art need to use a pulley assembly to move in the track mounting groove, and also need to move the pulley assembly left and right on the track to realize the side-pressure process of the doors and windows. The side pressure is for improving the sealing of the doors and windows. In the above-mentioned comparative document, the side pressure is realized by moving the wheels left and right on the track. In the case of the weight of the doors and windows, the friction between the wheels and the track is relatively large, and a large force is required to perform the side-pressure operation on the doors and windows. In addition, the left and right movement of the wheels on the track will cause wear of the wheels in the long run. When a certain part of the side of the wheel is severely worn, the mobility of the entire pulley will be reduced, causing the doors and windows to jam when moving. Therefore, there is an urgent need in the art to improve the pulley assembly for side-pressure sliding windows to solve the defects of the prior art. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a pulley assembly for a side-pressure sliding window, which facilitates people to move the entire door and window along a track and in a direction perpendicular to the track, thereby extending the service life of the entire pulley assembly.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulley assembly for a side-pressure sliding window, comprising a plurality of rollers and a mounting frame, a movable frame with an opening on one side is provided in the mounting frame, a symmetrical fixed axis that runs through the movable frame is fixedly connected between opposite side walls in the mounting frame, the movable frame can move in the mounting frame along the fixed axis, a plurality of the rollers are rotatably connected in the movable frame, a spacing is provided between the bottom of the mounting frame and the side of the movable frame away from the opening, a symmetrical arc-shaped plate with an opening on one side is fixedly installed in the bottom of the mounting frame, one side of the arc-shaped plate extends to the outside and the open side of the arc-shaped plate is connected to the inside of the mounting frame, a plurality of balls are provided in the arc-shaped plate, and the side of the movable frame away from the opening is in contact with the side surfaces of the plurality of balls.

[0008] Preferably, it further comprises a limiting unit which is arranged in the arc plate and is used to limit the positions of a plurality of balls, wherein the balls are embedded in the limiting unit and are rotatable.

[0009] Preferably, the limiting unit includes a first limiting frame and a second limiting frame adapted to the cavity in the arc plate, and the first limiting frame and the second limiting frame are each provided with a plurality of rotating grooves adapted to the ball, and the cavity radius in the rotating groove is larger than the radius of the ball, and a plurality of adapted stepped holes are provided between the first limiting frame and the second limiting frame, and the stepped holes are penetrated with fastening bolts for fixing the first limiting frame and the second limiting frame.

[0010] Preferably, threaded rings are fixedly mounted at both ends of the arc-shaped plate, a side of the threaded ring away from the arc-shaped plate is flush with a side surface of the mounting frame, and an inner thread of the threaded ring is connected to a limit block.

[0011] Preferably, a symmetrical plug-in strip is fixedly connected to the side surface of the first limiting frame, and a symmetrical plug-in groove adapted to the plug-in strip is formed on the inner side wall of the arc-shaped plate.

[0012] Preferably, buckle grooves are formed at both ends of the first limiting frame, and a pull-out rod is fixedly installed between the inner side walls of the buckle grooves.

[0013] Preferably, a groove communicating with the outside is formed on a side of the limiting block away from the first limiting frame, and a polygonal clamping block is fixedly installed in the groove.

[0014] In view of the deficiencies of the prior art, the utility model provides a pulley assembly for a side-pressure sliding window, which overcomes the deficiencies of the prior art. The beneficial effects of the utility model are:

[0015] 1. In the utility model, by arranging balls and fixed shafts, when the doors and windows move in the horizontal direction, the position of the mobile frame remains unchanged, and the mounting frame moves left and right on the mobile frame through the cooperation of the fixed shaft and the balls. The balls reduce the friction coefficient between the mounting frame and the mobile frame during relative movement, thereby facilitating people to move the entire doors and windows along the track and in a direction perpendicular to the track, thereby extending the service life of the entire pulley assembly.

[0016] 2. In the utility model, the first limiting frame and the second limiting frame are provided, and the side surface of the ball is embedded in the rotating groove of the first limiting frame and the second limiting frame. When the ball needs to be replaced, the ball can be taken out and replaced conveniently through the cooperation of the fastening bolts and the stepped holes.

[0017] 3. In the utility model, by setting a limit block, a plug-in strip and a plug-in groove, when the ball needs to be replaced, the limit block is removed by the clamping block, the first limit frame and the second limit frame are taken out from the arc plate, and the balls in the first limit frame and the second limit frame are replaced. After the ball is replaced, the first limit frame and the second limit frame are reinserted into the arc plate, and the plug-in strip and the plug-in groove cooperate to limit the position of the first limit frame and the second limit frame in the arc plate, and the limit block is threadedly connected in the threaded ring, which is convenient for removing the entire limit unit from the mounting frame and facilitating the later maintenance of the pulley assembly.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model as a whole from a top view;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model when viewed from the side;

[0022] Figure 3 It is a schematic diagram of the overall cross-section structure of the utility model;

[0023] Figure 4 It is a schematic structural diagram of the cross-section of the mounting frame and the arc-shaped plate in the utility model;

[0024] Figure 5This is a structural schematic diagram of the position of the arc-shaped plate on the mounting frame in the utility model;

[0025] Figure 6 It is a schematic diagram of the explosion structure of the arc plate, the first limiting frame and the second limiting frame in the utility model;

[0026] Figure 7 It is a schematic structural diagram of the cross-section of the arc plate, the first limiting frame and the second limiting frame in the utility model;

[0027] Figure 8 for Figure 5 The enlarged structural diagram at A in the middle;

[0028] Fig. 9 for Figure 7 The enlarged structural diagram at B in the middle;

[0029] Fig.10 for Figure 7 The enlarged structural diagram at C in the middle;

[0030] Fig.11 for Figure 7 Enlarged structural diagram at point D in the middle.

[0031] In the figure: 1. mounting frame; 2. movable frame; 3. fixed shaft; 4. roller; 5. arc plate; 6. ball bearing; 7. limiting unit; 8. first limiting frame; 9. second limiting frame; 10. rotating groove; 11. stepped hole; 12. fastening bolt; 13. threaded ring; 14. limiting block; 15. plug-in strip; 16. plug-in groove; 17. buckle groove; 18. pull-out rod; 19. groove; 20. clamping block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 11A pulley assembly for a side-pressure sliding window includes a plurality of rollers 4 and a mounting frame 1. A movable frame 2 with an opening on one side is provided in the mounting frame 1. A symmetrical fixed shaft 3 that runs through the movable frame 2 is fixedly connected between opposite side walls in the mounting frame 1. The movable frame 2 can move in the mounting frame 1 along the fixed shaft 3. A plurality of rollers 4 are rotatably connected in the movable frame 2. There is a spacing between the bottom of the mounting frame 1 and the side of the movable frame 2 away from the opening. A symmetrical arc-shaped plate 5 with an opening on one side is fixedly installed in the bottom of the mounting frame 1. One side of the arc-shaped plate 5 extends to the outside and the open side of the arc-shaped plate 5 is connected to the inside of the mounting frame 1. A plurality of balls 6 are provided in the arc-shaped plate 5. The side of the movable frame 2 away from the opening is attached to the side of the plurality of balls 6.

[0035] The specific implementation method of this embodiment is as follows: the mounting frame 1 is fixedly installed on the doors and windows through the cooperation of the mounting frame 1 and the fasteners, the roller 4 is engaged with the installed track, and the doors and windows are moved by the roller 4. When the doors and windows need to move horizontally, the position of the mobile frame 2 remains unchanged, and the mounting frame 1 moves left and right on the mobile frame 2 through the cooperation of the fixed shaft 3 and the ball 6, wherein the fixed shaft 3 is used to limit the position between the mobile frame 2 and the mounting frame 1, and the ball 6 reduces the friction coefficient between the mounting frame 1 and the mobile frame 2 during relative movement, thereby facilitating people to move and translate the entire door and window along the track, thereby extending the service life of the overall pulley assembly.

[0036] Embodiment 2

[0037] See also Figure 3-Figure 11 The present embodiment includes the above-mentioned embodiment, wherein it further includes: a limiting unit 7 provided in the arc plate 5 and used for limiting a plurality of balls 6, the balls 6 are embedded in the limiting unit 7 and the balls 6 can rotate, the limiting unit 7 includes a first limiting frame 8 and a second limiting frame 9 adapted to the cavity in the arc plate 5, a plurality of rotation grooves 10 adapted to the balls 6 are provided in the first limiting frame 8 and the second limiting frame 9, the cavity radius in the rotation groove 10 is greater than the radius of the balls 6, a plurality of adapted stepped holes 11 are provided between the first limiting frame 8 and the second limiting frame 9, and a fastening bolt 12 for fixing the first limiting frame 8 and the second limiting frame 9 is passed through the stepped hole 11.

[0038] Specific implementation method of this embodiment: when the ball 6 is embedded in the first limit frame 8 and the second limit frame 9, the ball 6 cannot slide out of the rotating groove 10, and the side surface of the ball 6 and the inner wall of the rotating groove 10 are coated with grease to improve the smoothness of the ball 6 during rotation. When the ball 6 is severely worn, the fastening bolt 12 can be disassembled and the second limit frame 9 can be removed to remove the ball 6 and replace it. The new ball 6 is replaced and fixed between the first limit frame 8 and the second limit frame 9 by the cooperation of the fastening bolt 12 and the stepped hole 11. The structure is simple and convenient for later maintenance.

[0039] Embodiment 3

[0040] See also Figure 5-Figure 10 This embodiment includes all the above embodiments, which further includes: threaded rings 13 are fixedly installed at both ends of the arc plate 5, the threaded ring 13 is flush with the side of the mounting frame 1 away from the arc plate 5, the inner thread of the threaded ring 13 is connected to a limiting block 14, a symmetrical plug-in strip 15 is fixedly connected to the side of the first limiting frame 8, and a symmetrical plug-in groove 16 that is compatible with the plug-in strip 15 is opened on the inner side wall of the arc plate 5, buckle grooves 17 are opened at both ends of the first limiting frame 8, and a pull-out rod 18 is fixedly installed between the inner side walls of the buckle groove 17, and a groove 19 connected to the outside is opened on the side of the limiting block 14 away from the first limiting frame 8, and a polygonal clamping block 20 is fixedly installed in the groove 19.

[0041] Specific implementation method in this embodiment: when the ball 6 needs to be replaced, it is clamped with the clamping block 20 through a tool (such as a socket wrench), and the limit block 14 is removed through the clamping block 20, and the first limit frame 8 and the second limit frame 9 are taken out from the arc plate 5 through the pull-out rod 18, and the ball 6 in the first limit frame 8 and the second limit frame 9 is replaced. After the ball 6 is replaced, the first limit frame 8 and the second limit frame 9 are reinserted into the arc plate 5 by aligning the plug-in strip 15 with the plug-in groove 16, and the positions of the first limit frame 8 and the second limit frame 9 in the arc plate 5 are limited by the cooperation of the plug-in strip 15 and the plug-in groove 16, and the limit block 14 is threadedly connected to the threaded ring 13, so as to facilitate the removal of the entire limit unit 7 from the mounting frame 1 and facilitate the later maintenance of the pulley assembly.

[0042] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pulley assembly for a side-pressure sliding window, comprising a plurality of rollers (4), It is characterized in that The invention also comprises a mounting frame (1), wherein a movable frame (2) having an opening on one side is arranged inside the mounting frame (1), a fixed shaft (3) symmetrically penetrating the movable frame (2) is fixedly connected between opposite side walls inside the mounting frame (1), the movable frame (2) can move inside the mounting frame (1) along the fixed shaft (3), a plurality of rollers (4) are rotatably connected inside the movable frame (2), a spacing is provided between the bottom of the mounting frame (1) and the side of the movable frame (2) away from the opening, a symmetrical arc-shaped plate (5) having an opening on one side is fixedly installed on the bottom of the mounting frame (1), one side of the arc-shaped plate (5) extends to the outside and the side of the opening of the arc-shaped plate (5) is connected to the inside of the mounting frame (1), a plurality of balls (6) are arranged inside the arc-shaped plate (5), and the side of the movable frame (2) away from the opening is in contact with the side of the plurality of balls (6).

2. A pulley assembly for a side-pressure sliding window according to claim 1, It is characterized in that It also comprises a limiting unit (7) which is arranged in the arc-shaped plate (5) and is used to limit the position of a plurality of balls (6); the balls (6) are embedded in the limiting unit (7) and are able to rotate.

3. A pulley assembly for a side-pressure sliding window according to claim 2, It is characterized in that The limiting unit (7) comprises a first limiting frame (8) and a second limiting frame (9) adapted to the inner cavity of the arc plate (5); a plurality of rotation grooves (10) adapted to the ball (6) are provided in the first limiting frame (8) and the second limiting frame (9); the cavity radius in the rotation groove (10) is greater than the radius of the ball (6); a plurality of adapted stepped holes (11) are provided between the first limiting frame (8) and the second limiting frame (9); and fastening bolts (12) for fixing the first limiting frame (8) and the second limiting frame (9) are passed through the stepped holes (11).

4. A pulley assembly for a side-pressure sliding window according to claim 3, It is characterized in that Threaded rings (13) are fixedly mounted on both ends of the arc-shaped plate (5); the side of the threaded ring (13) away from the arc-shaped plate (5) is flush with the side of the mounting frame (1); and the inner thread of the threaded ring (13) is connected to a limiting block (14).

5. The pulley assembly for a side-pressure sliding window according to claim 3, It is characterized in that A symmetrical plug-in strip (15) is fixedly connected to the side of the first limiting frame (8), and a symmetrical plug-in slot (16) adapted to the plug-in strip (15) is formed on the inner side wall of the arc-shaped plate (5).

6. The pulley assembly for a side-pressure sliding window according to claim 3, It is characterized in that Buckle grooves (17) are provided at both ends of the first limiting frame (8), and a pull-out rod (18) is fixedly installed between the inner side walls of the buckle groove (17).

7. The pulley assembly for a side-pressure sliding window according to claim 4, It is characterized in that A groove (19) communicating with the outside is formed on one side of the limit block (14) away from the first limit frame (8), and a polygonal clamping block (20) is fixedly installed in the groove (19).

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