Pulley device and sliding door and window

Abstract

The invention provides a pulley device and a sliding door and window, and relates to the technical field of door and window structures. The rotating part comprises a rotating shaft rotationally connected to the connecting support and two rotating seats arranged at the two ends of the rotating shaft respectively; the rolling wheel component comprises two rolling wheel assemblies arranged at the two ends of the rotating shaft respectively, each rolling wheel assembly comprises two rolling wheel units arranged on the two sides of the rotating base respectively, and each rolling wheel unit comprises a rolling wheel base rotationally connected with the rotating base and two rolling wheels rotationally connected to the rolling wheel base. The rolling wheel units are arranged on the two sides of the rotating base respectively, each rolling wheel on the rolling wheel units can roll independently, and when any rolling wheel is damaged, the rolling wheel units can still be used for a period of time; no matter the lower frame profile deforms and inclines in the length direction or / and the width direction, the contact concave surfaces of the rolling wheels are in close contact with the moving guide rails all the time, and the fan body can smoothly move along the moving guide rails.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window structures, and in particular to a pulley device and a sliding door and window. Background Art

[0002] Door and window structures are usually divided into hinged doors and windows and movable doors and windows. Among them, movable doors and windows can move along fixed lines or tracks. The moving trajectory of movable doors and windows can be set along the wall or even set inside the wall. Compared with hinged doors and windows, the opening and closing space of doors and windows can be greatly reduced.

[0003] In the door and window industry, pulley devices are commonly used hardware for sliding doors and windows. The design structure of the pulley device determines the quality of sliding doors and windows to a certain extent. Since the existing rolling wheels are usually designed in pairs, when the sliding doors and windows are impacted by external forces and the rolling wheels are partially damaged, the sliding doors and windows cannot be opened or closed normally. In addition, sliding doors and windows with heavy loads usually adopt the lower pulley structure, that is, a movable guide rail is provided on the lower frame profile, and the door and window opening and closing effect is achieved by the rolling wheels moving on the movable guide rail. However, since the doors and windows spend most of their time in a certain position when opened and closed within the frame, long-term use will cause the lower frame profile to deform to varying degrees in the length and width directions, resulting in uneven force on the pulley device and poor contact between the pulley and the moving guide rail. Long-term use of the roller unit is prone to skew, shake, derailment and deformation. In addition, due to machining accuracy, transportation, etc., assembly errors occur between the door and window sash and the door and window frame. After the door and window frame is embedded in the wall, it is also easy to cause deformation of the door and window frame. Many factors make it difficult to accurately match the door and window sash with the door and window frame, and the door and window sash has poor adaptability to the door and window frame. Summary of the invention

[0004] Based on this, in order to solve the above problems, the present invention provides a pulley device and a sliding door and window, and its specific technical solution is as follows: A pulley device, comprising: Connecting support; The rotating component comprises a rotating shaft rotatably connected to the connecting support, and two rotating seats respectively arranged at two ends of the rotating shaft; The roller component includes two groups of roller assemblies respectively arranged at both ends of the rotating shaft, the roller assembly includes two roller units respectively arranged on both sides of the rotating seat, the roller unit includes a roller seat rotatably connected to the rotating seat, and two rolling wheels rotatably connected to the roller seat, and the rolling wheels are provided with a contact concave surface adapted to the movable guide rail.

[0005] The above-mentioned pulley device is configured by respectively arranging roller units on both sides of the rotating seat. Each rolling wheel on the roller unit can roll independently. When any rolling wheel is damaged, the roller unit can continue to be used for a period of time. At the same time, when the lower frame profile is deformed and tilted in the length direction, the roller seat can rotate relative to the rotating seat, and the fan body can move smoothly along the movable guide rail. In addition, when the lower frame profile is deformed and tilted in the width direction, the rotating seat can rotate relative to the rotating axis, and the fan body can move smoothly along the movable guide rail.

[0006] Further, the connecting support includes a plate body and a first seat body arranged in the middle of the plate body, the first seat body is provided with an installation through hole adapted to the rotating shaft; the rotating seat includes a second seat body and an extending shaft respectively arranged on both sides of the second seat body, the second seat body is provided with a connecting through hole adapted to the installation through hole, and the roller seat is rotatably connected to the extending shaft.

[0007] Furthermore, a connecting hole adapted to the extending shaft is provided in the middle of the roller seat, and two rolling wheels are rotatably connected to two sides of the connecting hole respectively.

[0008] Furthermore, the plate body is provided with a clearance groove adapted to the rolling wheel; the connecting support also includes a dustproof unit arranged on both sides of the plate body, and the dustproof unit includes a dustproof block and a felt piece arranged on the dustproof block.

[0009] Furthermore, the roller seat is rotatably connected to the extending shaft via a first copper sleeve; and the second seat body is rotatably connected to the rotating shaft via a second copper sleeve.

[0010] Furthermore, the rotating shaft is provided with a first assembly shaft end and a limiting shaft end, the limiting shaft end is provided with a limiting shaft shoulder adapted to the second copper sleeve, the first assembly shaft end is provided with a first limiting plate; the shaft end of the extending shaft is provided with a second limiting plate.

[0011] Furthermore, the rolling wheel comprises a roller shaft and a roller body rotatably connected to the roller shaft; the roller shaft is provided with a second assembly shaft end for connecting to the roller seat.

[0012] Further, the first assembly shaft end is provided with a first concave edge, the shaft end of the extension shaft is provided with a second concave edge, the second assembly shaft end is provided with a third concave edge, and rotation through holes are respectively provided on both sides of the connecting hole; The assembly process of the pulley device is as follows: S1. Install the second copper sleeves into the connecting holes of the two rotating seats respectively; S2, insert one rotating seat onto the rotating shaft until the limiting shaft end contacts the second copper sleeve, then pass the rotating shaft through the installation through hole, and insert another rotating seat from the first assembly shaft end; S3, after the first assembly shaft end is sleeved with the first limiting plate, a first concave edge is punched to form a first limiting ring plate, and the first limiting ring plate limits the position of the rotating seat of the first assembly shaft end on the rotating shaft; S4, the second assembly shaft end passes through the rotating through hole, and a third concave edge is punched to form a third limiting ring piece, and the third limiting ring piece limits the position of the second assembly shaft end in the rotating through hole; S5. Insert the roller seat equipped with the rolling wheel into the four extended shafts respectively, and insert the second limiting plate into the shaft end of each extended shaft, and punch the second concave edge to form a second limiting ring plate, which limits the position of the roller seat on the extended shaft.

[0013] On the other hand, a sliding door and window includes a frame body provided with a sliding space, and a fan body arranged in the sliding space; the frame body includes a lower frame profile, and the lower frame profile is provided with two movable guide rails; the fan body includes a fan body, and a pulley device, and the pulley device is arranged at the bottom of the fan body.

[0014] Furthermore, the frame body includes an upper frame profile and an auxiliary mounting part arranged on the upper frame profile, the auxiliary mounting part is provided with a plurality of dust-proof soft edges in contact with the top of the fan body; a dust-proof flange is provided at the bottom of the fan body, and the dust-proof flange is arranged on both sides of the pulley device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0016] Figure 1 is a schematic structural diagram of a pulley device according to an embodiment of the present invention; Figure 2 is a cross-sectional view of the structure of a pulley device according to an embodiment of the present invention Figure 1 ; Figure 3 is a cross-sectional view of the structure of a pulley device according to an embodiment of the present invention Figure 2 ; Figure 4 is a structural cross-sectional view of a sliding door and window according to an embodiment of the present invention; Figure 5 yes Figure 4 A magnified view of the structure at E in the middle; Figure 6 yes Figure 4 A magnified view of the structure at F in the middle; Figure 7 It is a schematic structural diagram of an auxiliary mounting member according to an embodiment of the present invention.

[0017] Description of reference numerals: 1. Connecting support; 2. Rotating component; 3. Roller component; 5. Frame; 6. Fan body; 11. plate body; 12. first seat body; 13. dustproof unit; 131. dust block; 132. felt piece; 21. Rotating shaft; 22. Rotating seat; 221, second seat body; 222, extension shaft; 31. roller unit; 32. roller seat; 33. rolling wheel; 34. roller shaft; 35. roller body; 41. first copper sleeve; 42. second copper sleeve; 43. third copper sleeve; 51. lower frame profile; 52. movable guide rail; 53. upper frame profile; 54. auxiliary mounting parts; 55. mounting groove; 56. mounting flange; 541, dustproof soft edge; 61. Fan body; 62. Pulley device. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0022] On the one hand, if Figure 1 and Figure 2 , Figure 3 As shown, a pulley device in one embodiment of the present invention includes: Connecting support 1; The rotating component 2 includes a rotating shaft 21 rotatably connected to the connecting support 1, and two rotating seats 22 respectively arranged at both ends of the rotating shaft 21; The roller component 3 includes two groups of roller assemblies respectively arranged at both ends of the rotating shaft 21. The roller assembly includes two roller units 31 respectively arranged on both sides of the rotating seat 22. The roller unit 31 includes a roller seat 32 rotatably connected to the rotating seat 22, and two rolling wheels 33 rotatably connected to the roller seat 32. The rolling wheels 33 are provided with a contact concave surface adapted to the movable guide rail.

[0023] The above-mentioned pulley device is configured by respectively arranging roller units 31 on both sides of the rotating seat 22. Each rolling wheel 33 on the roller unit 31 can roll independently and is in close contact with the movable guide rail. When any rolling wheel 33 is damaged, the roller unit 31 can continue to be used for a period of time; at the same time, when the lower frame profile is deformed and tilted in the length direction, the roller seat 32 can rotate relative to the rotating seat 22, and the fan body can move smoothly along the movable guide rail; in addition, when the lower frame profile is deformed and tilted in the width direction, the rotating seat 22 can rotate relative to the rotating shaft 21, and the fan body can move smoothly along the movable guide rail.

[0024] In one embodiment, the connecting support 1 includes a plate body 11 and a first seat body 12 arranged in the middle of the plate body 11, and the first seat body 12 is provided with a mounting through hole adapted to the rotating shaft 21; the rotating seat 22 includes a second seat body 221, and an extending shaft 222 respectively arranged on both sides of the second seat body 221, and the second seat body 221 is provided with a connecting through hole adapted to the mounting through hole, and the roller seat 32 is rotatably connected to the extending shaft 222.

[0025] In one embodiment, a connecting hole adapted to the extending shaft 222 is provided in the middle of the roller seat 32, and two rollers 33 are rotatably connected to the two sides of the connecting hole. Specifically, the two rollers 33 are symmetrically arranged on the two sides of the connecting hole.

[0026] In one of the embodiments, the plate body 11 is provided with an air-avoiding groove adapted to the rolling wheel 33; the connecting support 1 also includes a dustproof unit 13 arranged on both sides of the plate body 11, and the dustproof unit 13 includes a dustproof block 131 and a felt piece 132 arranged on the dustproof block 131. Specifically, the felt piece 132 includes a first felt brush in contact with the outer wheel surface of the rolling wheel 33, and a second felt brush in contact with the moving guide rail. In this way, the overall height of the pulley device can be reduced by the air-avoiding groove, thereby improving the applicability of the pulley device; in addition, the rolling wheel 33 and the moving guide rail can be brushed separately by the felt brush to prevent foreign matter from contacting the rolling wheel 33 and damaging the outer wheel surface of the rolling wheel 33, thereby ensuring the service life of the rolling wheel 33.

[0027] In one embodiment, the roller seat 32 is rotatably connected to the extension shaft 222 through the first copper sleeve 41; the second seat body 221 is rotatably connected to the rotation shaft 21 through the second copper sleeve 42. In this way, the roller seat 32 can rotate smoothly relative to the extension shaft 222 and the second seat body 221 can rotate smoothly relative to the rotation shaft 21 through the copper sleeve; at the same time, the structure of the copper sleeve is compact, which is convenient for reducing the overall volume of the pulley device.

[0028] In one embodiment, the rotating shaft 21 is provided with a first assembly shaft end and a limiting shaft end, the limiting shaft end is provided with a limiting shaft shoulder adapted to the second copper sleeve 42, the first assembly shaft end is provided with a first limiting piece, and the shaft end of the extension shaft 222 is provided with a second limiting piece. In this way, the axial position of each part is limited by the limiting piece, the contact surface is large, the structure is simple, and it is easy to maintain the structural stability of the pulley device.

[0029] In one embodiment, the rolling wheel 33 includes a roller shaft 34 and a roller body 35 rotatably connected to the roller shaft 34; the roller shaft 34 is provided with a second assembly shaft end for connecting to the roller seat 32. Specifically, the roller body 35 is rotatably connected to the roller shaft 34 through a bearing.

[0030] In one embodiment, the rotating shaft 21 is rotatably connected to the mounting through hole through the third copper sleeve 43. In this way, the copper sleeve allows the rotating shaft 21 to rotate smoothly relative to the connecting support 1; at the same time, the assembly area of ​​the rotating shaft 21 and the first seat body 12 is reduced, thereby reducing the processing cost.

[0031] In one embodiment, the first assembly shaft end is provided with a first concave edge, the shaft end of the extension shaft 222 is provided with a second concave edge, the second assembly shaft end is provided with a third concave edge, and rotation through holes are provided on both sides of the connecting hole; The assembly process of the pulley device is as follows: S1, insert the second copper sleeve 42 into the connecting through holes of the two rotating seats 22 respectively; S2, insert one rotating seat 22 onto the rotating shaft 21 until the limiting shaft end contacts the second copper sleeve 42, and then pass the rotating shaft 21 through the installation through hole and insert another rotating seat 22 from the first assembly shaft end; S3, after the first assembly shaft end is inserted into the first limiting plate, a first concave edge is punched to form a first limiting ring plate, and the first limiting ring plate limits the position of the rotating seat 22 of the first assembly shaft end on the rotating shaft 21; S4, the second assembly shaft end passes through the rotating through hole, and a third concave edge is punched to form a third limiting ring piece, and the third limiting ring piece limits the position of the second assembly shaft end in the rotating through hole; S5. Insert the roller seat 32 equipped with the rolling wheel 33 into the four extending shafts 222 respectively, and insert the second limiting plate into the shaft end of each extending shaft 222, and punch the second concave edge to form a second limiting ring plate, which limits the position of the roller seat 32 on the extending shaft 222.

[0032] In this way, by punching the concave edge into a limiting ring piece, the structure is stable and reliable, and there is no possibility of the screw loosening compared to screw locking, so that the pulley device can maintain good mobility during long-term use.

[0033] On the other hand, Figure 4 and Figure 5 , Figure 6 As shown, a sliding door and window in one embodiment of the present invention comprises a frame 5 provided with a sliding space, and a fan body 6 arranged in the sliding space; the frame 5 comprises a lower frame profile 51, and the lower frame profile 51 is provided with two moving guide rails 52; the fan body 6 comprises a fan body 61, and a pulley device 62, and the pulley device 62 is arranged at the bottom of the fan body 61. In this way, each rolling wheel 33 on the roller unit 31 can roll independently, and when any rolling wheel 33 is damaged, the fan body 6 can still rely on the roller unit 31 and continue to be used for a period of time; at the same time, no matter the lower frame profile 51 is deformed and tilted in the length direction or / and the width direction, the contact concave surface of the rolling wheel 33 is always in close contact with the moving guide rail 52, and the fan body 6 can move smoothly along the moving guide rail 52.

[0034] like Figure 6 and Figure 7 In one embodiment shown, the frame 5 includes an upper frame profile 53 and an auxiliary mounting member 54 disposed on the upper frame profile 53. The auxiliary mounting member 54 is provided with a plurality of dustproof soft edges 541 in contact with the top of the fan body 61. The bottom of the fan body 61 is provided with dustproof flanges, which are disposed on both sides of the pulley device 62. In this way, the dustproof soft edges 541 press against the top of the fan body 61, which can effectively prevent dust from gathering on the top of the fan body 61. At the same time, the dustproof soft edges 541 can press the fan body 61, provide a certain amount of spring force, and increase the contact pressure of the contact concave surface of the rolling wheel 33 on the moving guide rail 52.

[0035] In one embodiment, the auxiliary mounting member 54 is mounted to the upper frame profile 53 through a clamping structure, and the clamping structure includes a mounting groove 55 provided on the upper frame profile 53, and a mounting flange 56 provided on the auxiliary mounting member 54. Specifically, the auxiliary mounting member 54 includes a mounting block, and the mounting block is provided with a mounting hole for mounting a fastener, and the fastener is fixed to the upper frame profile 53 through the mounting hole.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A pulley device, characterized in that: include: Connecting support (1); A rotating component (2) comprising a rotating shaft (21) rotatably connected to the connecting support (1), and two rotating seats (22) respectively arranged at both ends of the rotating shaft (21); The roller component (3) comprises two groups of roller assemblies respectively arranged at two ends of the rotating shaft (21), the roller assembly comprising two roller units (31) respectively arranged at two sides of the rotating seat (22), the roller unit (31) comprising a roller seat (32) rotatably connected to the rotating seat (22), and two rolling wheels (33) rotatably connected to the roller seat (32), the rolling wheels (33) being provided with contact concave surfaces adapted to the movable guide rails.

2. A pulley device according to claim 1, characterized in that: The connecting support (1) comprises a plate body (11) and a first seat body (12) arranged in the middle of the plate body (11), wherein the first seat body (12) is provided with a mounting through hole adapted to fit the rotating shaft (21); The rotating seat (22) comprises a second seat body (221) and extension shafts (222) respectively arranged on both sides of the second seat body (221); the second seat body (221) is provided with a connecting through hole adapted to the mounting through hole; and the roller seat (32) is rotatably connected to the extension shafts (222).

3. A pulley device according to claim 2, characterized in that: A connection hole adapted to the extending shaft (222) is provided in the middle of the roller seat (32), and two rolling wheels (33) are rotatably connected to two sides of the connection hole respectively.

4. A pulley device according to claim 2, characterized in that: The plate body (11) is provided with a clearance groove adapted to fit the rolling wheel (33); The connecting support (1) further comprises a dustproof unit (13) arranged on both sides of the plate body (11), and the dustproof unit (13) comprises a dustproof block (131) and a felt piece (132) arranged on the dustproof block (131).

5. A pulley device according to claim 3, characterized in that: The roller seat (32) is rotatably connected to the extension shaft (222) via a first copper sleeve (41); The second seat body (221) is rotatably connected to the rotating shaft (21) via a second copper sleeve (42).

6. A pulley device according to claim 5, characterized in that: The rotating shaft (21) is provided with a first assembly shaft end and a limiting shaft end, the limiting shaft end is provided with a limiting shaft shoulder adapted to the second copper sleeve (42), and the first assembly shaft end is provided with a first limiting plate; A second limiting piece is provided at the shaft end of the extending shaft (222).

7. A pulley device according to claim 6, characterized in that: The rolling wheel (33) comprises a rolling wheel shaft (34) and a rolling wheel body (35) rotatably connected to the rolling wheel shaft (34); The roller shaft (34) is provided with a second assembly shaft end for connecting to the roller seat.

8. A pulley device according to claim 7, characterized in that: The first assembly shaft end is provided with a first concave edge, the shaft end of the extension shaft is provided with a second concave edge, the second assembly shaft end is provided with a third concave edge, and both sides of the connecting hole are respectively provided with rotation through holes; The assembly process of the pulley device is as follows: Installing second copper sleeves into the connecting through holes of the two rotating seats (22) respectively; Insert one rotating seat (22) onto the rotating shaft (21) until the stop shaft end contacts the second copper sleeve (42), and then insert the rotating shaft (21) through the mounting through hole and insert another rotating seat (22) from the first assembly shaft end; After the first assembly shaft end is inserted into the first limiting plate, a first concave edge is punched to form a first limiting ring plate, and the first limiting ring plate limits the position of the rotating seat of the first assembly shaft end on the rotating shaft (21); The second assembly shaft end passes through the rotating through hole, and a third concave edge is punched to form a third limiting ring piece, and the third limiting ring piece limits the position of the second assembly shaft end in the rotating through hole; The roller seat (32) equipped with the rolling wheel (33) is respectively inserted into the four extending shafts (222), and a second limiting piece is inserted into the shaft end of each extending shaft (222), and a second concave edge is punched to form a second limiting ring piece, which limits the position of the roller seat (32) on the extending shaft (222).

9. A sliding door and window, characterized in that: It comprises a frame body (5) provided with a push-pull space, and a fan body (6) arranged in the push-pull space; The frame body (5) comprises a lower frame profile (51), and the lower frame profile (51) is provided with two movable guide rails (52); The fan body (6) comprises a fan body (61) and a pulley device (62) according to any one of claims 1 to 8, and the pulley device (62) is arranged at the bottom of the fan body (61).

10. A sliding door and window according to claim 9, characterized in that: The frame (5) comprises an upper frame profile (53) and an auxiliary mounting member (54) arranged on the upper frame profile (53); the auxiliary mounting member (54) is provided with a plurality of dustproof soft edges (541) in contact with the top of the fan body (61); A dustproof flange is provided at the bottom of the fan body (61), and the dustproof flange is arranged on both sides of the pulley device (62).

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