Door and window pulley device for sliding window and door and window system

Abstract

The utility model relates to the technical field of doors and windows, and provides a door and window pulley device for a sliding window and a door and window system.The door and window pulley device comprises a pulley device body, and the pulley device body comprises a sliding support capable of sliding along a track; the door and window pulley device further comprises a side pressing support which is used for being connected with a window sash and can be connected to the sliding support in a sliding mode in the direction perpendicular to the rail so as to be close to or away from the other window sash, and at least two sets of side pressing sliding guide structures are arranged between the sliding support and the side pressing support. And at least two groups of side pressure transmission structures are arranged between the sliding bracket and the side pressure bracket. According to the door and window pulley device for the sliding window and the door and window system, when a user operates a handle component, a window sash achieves the side pressing and sealing strengthening function, the side pressing process is stable and smooth, the undesirable phenomena of clamping stagnation, deformation and the like caused by torsion of a side pressing support relative to a sliding support are avoided, operation is relatively labor-saving, the structure is not prone to deformation and failure, and the product reliability is good. And the user experience is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of doors and windows, and in particular relates to a door and window pulley device for sliding windows and a door and window system. Background Art

[0002] Sliding windows and casement windows each have their own advantages and disadvantages. Casement windows use a squeezing method to close the windows, which makes them more tightly sealed than sliding windows. Therefore, their market share is gradually increasing. However, since casement windows occupy indoor and outdoor space and have limited opening angles, the ventilation effect is poor. Sliding windows have good ventilation effects and do not occupy any indoor or outdoor space. They are safer than casement windows and there is no risk of the window sashes being blown off by strong winds. However, their sealing effect is poor, and their sound insulation and heat insulation effects are worse than casement windows.

[0003] In order to improve the sealing effect of sliding windows, a variety of sliding pulley structures that can translate sliding windows inward and outward to improve their sealing have been launched on the market. There are two types of existing sliding window technologies. One is to use a push-pull pulley for positioning, and the track change is to translate and close the window by moving the Z-shaped or oblique straight groove guide block left and right. The disadvantage is that the precision is not high when squeezing and translating, there is hard friction between the guide rivet and the guide block, the operation is difficult, and it is easy to deform and fail, the reliability is poor, the operation is also laborious, and the user experience is poor. Utility Model Content

[0004] The purpose of the utility model is to overcome at least one of the deficiencies of the above-mentioned prior art and to provide a door and window pulley device and a door and window system for sliding windows, wherein the lateral pressure process is smooth and steady, and undesirable phenomena such as jamming and deformation caused by the lateral pressure bracket twisting relative to the sliding bracket are avoided. Compared with the hard friction between the guide rivet and the guide block, the lateral movement of the sliding window is relatively labor-saving when operating, and the structure is not easy to deform and fail, the product has good reliability and the user experience is better.

[0005] The technical solution of the utility model is: a door and window pulley device for sliding windows, including a pulley device body, the pulley device body includes a sliding bracket that can slide along a track, the door and window pulley device also includes a side pressure bracket that is used to connect the window sashes and can be slidably connected to the sliding bracket along a vertical track direction to approach or move away from another window sash, at least two groups of side pressure sliding guide structures are arranged between the sliding bracket and the side pressure bracket, and at least two groups of side pressure transmission structures are arranged between the sliding bracket and the side pressure bracket.

[0006] Specifically, the side pressure sliding guide structure includes a guide tube and a guide shaft, the guide tube is fixedly connected to or integrally connected to the sliding bracket, the guide shaft is fixedly connected to or integrally connected to the side pressure bracket, and the guide shaft slides through the guide tube;

[0007] Alternatively, the guide tube is fixedly connected to or integrally connected to the side pressure bracket, the guide shaft is fixedly connected to or integrally connected to the sliding bracket, and the guide shaft slides through the guide tube.

[0008] Specifically, a sliding bearing is arranged in the guide tube, and the guide shaft passes through the sliding bearing.

[0009] Specifically, the sliding bracket is in the shape of a U-shaped profile and has two opposing first side walls, the two ends of the guide tube are fixedly connected to the two opposing first side walls of the sliding bracket, and the first side wall has a through hole that penetrates the guide tube; the side pressure bracket is in the shape of a U-shaped profile and is located on the outside of the sliding bracket, the side pressure bracket has two opposing second side walls, the two ends of the guide shaft are fixedly connected to the two opposing second side walls of the side pressure bracket, and the two ends of the guide shaft both extend out of the through hole, and the sliding bracket is located between the two second side walls.

[0010] Specifically, the side pressure transmission structure includes a sliding member driven by a pull rod and can slide along the track direction, the sliding bracket is connected to a rotating component driven by the sliding member, and the side pressure bracket is fixed with a driven structural component driven by the rotating component to slide along the direction perpendicular to the track.

[0011] Specifically, the sliding member is provided with a first rack structure, the rotating member includes a first gear coaxially connected and a second gear rotating synchronously with the first gear, the first gear is meshed with the first rack structure, the sliding bracket is provided with a second rack structure, the second rack structure is arranged in a direction perpendicular to the first rack structure, and the second gear is meshed with the second rack structure.

[0012] Specifically, the diameter of the first gear is greater than or smaller than the diameter of the second gear, or the diameter of the first gear is equal to the diameter of the second gear.

[0013] Specifically, the sliding member is a sliding rod that can be driven by a door or window handle, the sliding rod is provided with at least two first grooves along the length direction, the first rack structure is provided at a side wall of the first groove along the length direction of the sliding rod, and the first gear extends into the first groove and meshes with the first rack structure;

[0014] A second slot is provided on the top of the sliding bracket, the second rack structure is provided on a side wall of the second slot along the width direction of the sliding bracket, and the second gear extends into the second slot and meshes with the second rack structure.

[0015] Specifically, the main body of the pulley device is a lower pulley device, and the lower pulley device is provided with at least two wheel bodies, each of the wheel bodies is connected to the sliding bracket through a wheel axle, and one or at least two wheel bodies are arranged between two adjacent guide tubes, and the guide tube is arranged parallel to the wheel axle; or, the main body of the pulley device is an upper pulley device.

[0016] The utility model also provides a door and window system, wherein the door and window system is the door and window pulley device for a sliding window.

[0017] The utility model provides a door and window pulley device and a door and window system for sliding windows. When the user operates the handle component, the window sash can realize the function of side pressure enhanced sealing. The side pressure process is smooth and stable, and it can avoid the side pressure bracket twisting relative to the sliding bracket to cause sticking and deformation and other undesirable phenomena. The operation is relatively labor-saving, and the structure is not easy to deform and fail. The product has good reliability and better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a plan view of a door and window system provided by an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of a door and window system provided by an embodiment of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0023] Figure 5 It is a side schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0025] Figure 7It is a three-dimensional exploded schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0026] Figure 8 It is a three-dimensional exploded schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0027] Fig. 9 It is a three-dimensional schematic diagram of a door and window pulley device (upper pulley device) in a door and window system provided by an embodiment of the utility model;

[0028] Fig.10 It is a three-dimensional schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0029] Fig.11 It is a three-dimensional exploded schematic diagram of a door and window pulley device (lower pulley device) in a door and window system provided by an embodiment of the utility model;

[0030] Fig.12 It is a three-dimensional schematic diagram of a side lock device (unlocked) in a door and window system provided by an embodiment of the utility model;

[0031] Fig.13 It is a three-dimensional schematic diagram of a side lock device (when locked) in a door and window system provided by an embodiment of the utility model;

[0032] Fig.14 It is a three-dimensional schematic diagram of a side lock device (when locked) in a door and window system provided by an embodiment of the utility model;

[0033] Fig.15 This is a schematic diagram of the application of a side lock device (when locked) in a door and window system provided by an embodiment of the utility model;

[0034] Fig.16 It is a three-dimensional schematic diagram of a side lock device (unlocked) in a door and window system provided by an embodiment of the utility model;

[0035] Fig.17 This is a schematic diagram of the application of a side lock device (unlocked) in a door and window system provided by an embodiment of the utility model;

[0036] Fig.18 It is a three-dimensional schematic diagram of a side lock device in a door and window system provided by an embodiment of the utility model;

[0037] Fig.19 It is a three-dimensional schematic diagram of a first lock body bracket in a side lock device of a door and window system provided by an embodiment of the utility model;

[0038] Fig. 20It is a three-dimensional schematic diagram of a first lock body bracket in a side lock device of a door and window system provided by an embodiment of the utility model;

[0039] Fig.21 It is a three-dimensional exploded schematic diagram of a side lock device of a door and window system provided by an embodiment of the utility model;

[0040] Fig. 22 It is a three-dimensional schematic diagram of an intermediate locking device of a door and window system provided by an embodiment of the utility model;

[0041] Fig.23 It is a three-dimensional schematic diagram of an intermediate locking device (unlocked) of a door and window system provided by an embodiment of the utility model;

[0042] Fig.24 It is a three-dimensional schematic diagram of an intermediate locking device (when locked) of a door and window system provided by an embodiment of the utility model;

[0043] Fig.25 It is a three-dimensional schematic diagram of an intermediate locking device of a door and window system provided by an embodiment of the utility model;

[0044] Fig.26 It is a three-dimensional exploded schematic diagram of an intermediate locking device of a door and window system provided by an embodiment of the utility model;

[0045] Fig. 27 It is a three-dimensional exploded schematic diagram of an intermediate locking device of a door and window system provided by an embodiment of the utility model;

[0046] Fig.28 It is a three-dimensional schematic diagram of an intermediate lock slider of an intermediate lock device of a door and window system provided by an embodiment of the utility model;

[0047] Fig.29 It is a three-dimensional exploded schematic diagram of an intermediate lock seat of an intermediate lock device of a door and window system provided by an embodiment of the utility model;

[0048] Fig.30 It is a plan view of an intermediate lock seat of an intermediate lock device of a door and window system provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0050] It should be noted that the terms “setting” and “connection” should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.

[0051] In addition, if there are terms such as "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientation or positional relationship in the embodiments of the present invention, they are based on the orientation or positional relationship or the conventional placement state or use state shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must it be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner unless there is any contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present utility model will not be described separately.

[0053] like Figures 1 to 11 As shown, a door and window pulley device for sliding windows provided by an embodiment of the utility model can be used for a door and window system of sliding windows, including a pulley device body (which can be an upper pulley device 10 and a lower pulley device 20), the pulley device body includes a sliding bracket 11 that can slide along a track, the door and window pulley device also includes a side pressure bracket 12, the side pressure bracket 12 is used to connect the window sash, the side pressure bracket 12 can be slidably connected to the sliding bracket 11 along a direction perpendicular to the track to approach or move away from another window sash, that is, in addition to being able to slide along the track, the window sash can also be laterally pressed against another window sash when locked to ensure sealing, and the window sash does not press against another window sash when sliding to make the sliding smooth. At least two sets of side pressure sliding guide structures are arranged between the sliding bracket 11 and the side pressure bracket 12, and at least two sets of side pressure transmission structures are arranged between the sliding bracket 11 and the side pressure bracket 12. The side pressure transmission structure can be driven by the handle component 90 of the window sash through the transmission rod. At least two sets of side pressure sliding guide structures and at least two sets of side pressure transmission structures are arranged. The side pressure process is smooth and smooth, and the side pressure bracket 12 is prevented from twisting relative to the sliding bracket 11 to cause sticking and deformation and other adverse phenomena. Compared with the hard friction between the guide rivet and the guide block, the sliding window using the door and window pulley device in this embodiment is relatively labor-saving to operate, and the structure is not easy to deform and fail. The product has good reliability and better user experience.

[0054] Specifically, the side pressure sliding guide structure includes a guide tube 111 and a guide shaft 121. The guide tube 111 and the guide shaft 121 may be provided in two or more groups. The guide tube 111 is fixedly connected to or integrally connected to the sliding bracket 11, the guide shaft 121 is fixedly connected to or integrally connected to the side pressure bracket 12, and the guide shaft 121 slides through the guide tube 111; or, the guide tube 111 is fixedly connected to or integrally connected to the side pressure bracket 12, the guide shaft 121 is fixedly connected to or integrally connected to the sliding bracket 11, and the guide shaft 121 slides through the guide tube 111. The side pressure sliding guide structure adopts a sleeve-type sliding guide method, which has low resistance, can withstand heavier loads, and has high stability.

[0055] Specifically, a sliding bearing 112 is arranged in the guide tube 111, and the sliding bearing 112 is arranged at least at both ends of the guide tube 111. The guide shaft 121 passes through the sliding bearing 112. The sliding bearing 112 can be a linear bearing, which has a good application effect and is more conducive to reducing the driving force of the handle component 90, making the user's operation more labor-saving.

[0056] Specifically, in this embodiment, the sliding bracket 11 is in a U-shaped profile, and the sliding bracket 11 has a first top wall 113 and two first side walls 114 facing each other. The two ends of the guide tube 111 are fixedly connected (welded, etc.) to the two first side walls 114 facing each other of the sliding bracket 11, and the first side wall 114 has a through hole that penetrates the guide tube 111. The guide shaft 121 passes through the guide tube 111 and the two ends extend out of the through hole, that is, the two ends of the guide shaft 121 protrude from the two first side walls 114. The side pressure bracket 12 is in the shape of a U-shaped profile, and the side pressure bracket 12 is located outside the sliding bracket 11 and is buckled on the sliding bracket 11. The side pressure bracket 12 has a second top wall 123 and two second side walls 124 facing each other. The two ends of the guide shaft 121 are fixedly connected to the two second side walls 124 facing each other of the side pressure bracket 12, and both ends of the guide shaft 121 extend out of the through hole. The sliding bracket 11 is located between the two second side walls 124, and its structural reliability is high. In specific applications, a support guide structure can also be provided between the sliding bracket 11 and the side pressure bracket 12, that is, a sliding support structure (slide rail slider structure, etc.) is provided between the first top wall 113 and the second top wall 123, which is conducive to further improving the load-bearing performance. A buffer rubber pad or a buffer rubber block can be provided on the inner side of the second side wall 124.

[0057] Specifically, the side pressure transmission structure includes a sliding member 13 driven by a pull rod (transmission pull rod) and can slide along the track direction. In specific applications, the pull rod is driven by the handle component 90, that is, when the handle rotates, the pull rod can be driven to slide, and then the side pressure transmission structure, locking point and other structural actions can be driven. The sliding bracket 11 is connected to a rotating component driven by the sliding member 13, and the side pressure bracket 12 is fixedly provided with a driven structural component driven by the rotating component to slide along the vertical track direction, that is, the sliding direction of the side pressure bracket 12 is different from the driving direction of the pull rod, so that the handle is pulled to drive the side pressure bracket 12 to make the window sash side-pressed and close to another window sash. The rotating component and the driven structural component are a side pressure transmission structure.

[0058] Specifically, the sliding member 13 is provided with a first rack structure 131, and the first rack structure 131 can be arranged along the direction of the track. The rotating component includes a first gear 141 coaxially connected and a second gear 142 that rotates synchronously with the first gear 141, the first gear 141 is meshed with the first rack structure 131, the sliding bracket 11 is provided with a second rack structure 125, the second rack structure 125 is arranged in a direction perpendicular to the first rack structure 131, and the second gear 142 is meshed with the second rack structure 125; the first gear 141 and the second gear 142 are connected by a first synchronization shaft 143, and the first synchronization shaft 143 rotates and passes through the side pressure bracket 12. In this embodiment, with the direction of the user facing the handle side of the window sash as a reference, the direction of the track is the left and right direction, the direction of the first rack structure 131 is also the left and right direction, and the second rack structure 125 is the front and back direction. The window sash moves closer to or away from another window sash along the front and back direction, and the front and back direction is the lateral pressure direction. The first synchronization shaft 143 is arranged along the up and down direction. The first synchronization shaft 143 can move through the first top wall 113 and the second top wall 123. The first gear 141 and the second gear 142 are fixedly connected to the two ends of the first synchronization shaft 143 respectively.

[0059] Specifically, the diameter of the first gear 141 is larger or smaller than the diameter of the second gear 142 to meet the design requirements of labor saving or long stroke, or the diameter of the first gear 141 is equal to the diameter of the second gear 142, and the parts have good versatility.

[0060] Specifically, the sliding member 13 is a sliding rod (pull rod) that can be driven by a door or window handle. The sliding rod can be a sheet-like metal strip. The sliding rod is provided with at least two first grooves along the length direction. The first rack structure 131 is only provided on one side wall of the first groove along the length direction of the sliding rod. The first gear 141 extends into the first groove and engages with the first rack structure 131. The width of the first groove can match the diameter of the first gear 141, and its structural stability and reliability are better.

[0061] The top of the sliding bracket 11 is provided with a second slot, the second rack structure 125 is provided only at one side wall of the second slot along the width direction of the sliding bracket 11, and the second gear 142 extends into the second slot and meshes with the second rack structure 125. The width of the second slot can match the diameter of the second gear 142, and the structural stability and reliability are better.

[0062] Specifically, the pulley device body can be a lower pulley device 20, which is provided with at least two wheel bodies, each of which is connected to the sliding bracket 11 through a wheel axle, and one or at least two wheel bodies are arranged between two adjacent guide tubes 111, and the guide tube 111 is arranged parallel to the wheel axle; or, the pulley device body is an upper pulley device 10, and the upper pulley device 10 and the lower pulley device 20 can be installed at the upper end and the lower end of the window sash, respectively.

[0063] like Figures 1 to 11 As shown, the utility model also provides a door and window system, which has the above-mentioned door and window pulley device for sliding windows, and the door and window system includes a window sash main body and a handle component 90 arranged on the window sash main body. The handle component 90 drives the above-mentioned door and window pulley device through a transmission pull rod (a commutator is arranged at the corner of the window sash main body), so that the window sash can realize the side pressure function. The side pressure process is smooth and smooth, and it is avoided that the side pressure bracket 12 is twisted relative to the sliding bracket 11 to cause sticking and deformation and other undesirable phenomena. Compared with the hard friction between the guide rivet and the guide block, the sliding window using the door and window pulley device in this embodiment is relatively labor-saving to operate, and the structure is not easy to deform and fail, the product has good reliability, and the user experience is better.

[0064] Specifically, Figure 1 , Figure 2 as well as Figures 12 to 21As shown, the door and window system includes a side lock device 30, which is used to lock the window sash of the sliding window to the window frame after pressing it sideways. The side lock device 30 is also driven by the handle component 90 and the transmission rod. The side lock device 30 includes a side lock seat 31 that can be fixed to the window frame and a side lock body 32 that can be installed on one side of the window sash. The side lock seat 31 has a first plug hole 311 and a first inverted lock hole 312. Two first inverted lock holes 312 can be provided and located on both sides of the first plug hole 311. The side lock body 32 includes a first lock body bracket 321 and a first side sliding bracket 322 that can slide relative to the first lock body bracket 321. The first lock body bracket 321 is provided with a side lock that can slide along the window sash. The first side sliding bracket 322 is provided with a first inverted locking rod 324 that can be inserted into the first inverted locking hole 312 along the sliding direction of the window sash and can be inverted at the first inverted locking hole 312 as the first side sliding bracket 322 slides sideways; the first plug rod 323 can be directly inserted into the first plug hole 311, and the first inverted locking rod 324 can be buckled in the first inverted locking hole 312 as the window sash is pressed sideways, so as to achieve reliable locking of the window sash and the window frame. The first plug rod 323 extends into the first plug hole 311, which can form a reliable fulcrum locking, and the locking of the window sash in the front and rear directions is also more stable. The first inverted locking rod 324 is buckled in the first inverted locking hole 312, and the window sash is reliably locked in the left and right directions.

[0065] Specifically, one or at least two first side-sliding guide structures are arranged between the first lock body bracket 321 and the first side-sliding bracket 322, and one or at least two first side-sliding transmission structures are arranged between the first lock body bracket 321 and the first side-sliding bracket 322, and the transmission stability and reliability are better.

[0066] Specifically, the first lock body bracket 321 has first side sliding guide parts 325 at both ends, the first side sliding bracket 322 has first side sliding guide grooves 326 matching the first side sliding guide parts 325, and the first side sliding guide structure includes the first side sliding guide parts 325 and the first side sliding guide grooves 326. The first side sliding guide parts 325 can be cylindrical, and the first side sliding guide grooves 326 are corresponding linear grooves, so that the first lock body bracket 321 and the first side sliding bracket 322 can slide relatively reliably along the lateral pressure direction, and the structural reliability is high.

[0067] Specifically, the side lock device 30 includes a first lock body driving rod 33 (which can be driven by a transmission pull rod) driven by a handle component 90 and slidably connected to the side of the window sash. The first lock body driving rod 33 is connected to the first side sliding transmission structure, that is, the handle component 90 can drive the first inverted lock rod 324 to slide in the side pressure direction through the transmission pull rod and be inserted into the first inverted lock hole 312. The first inverted lock hole 312 can be an open U-shaped bayonet.

[0068] Specifically, the first lock body driving rod 33 is provided with a third rack structure 331, and the first side-sliding transmission structure includes a third gear 34 coaxially connected and a fourth gear 35 rotating synchronously with the third gear 34, and the third gear 34 is meshed with the third rack structure 331; the first lock body bracket 321 is provided with a fourth rack structure 329, and the fourth rack structure 329 is arranged in a direction perpendicular to the third rack structure 331, and the fourth gear 35 is meshed with the fourth rack structure 329. Similarly, with the direction in which the user faces the window sash and is located on the handle side as a reference, the direction of the track is the left and right direction, the direction of the third rack structure 331 is also the up and down direction, and the fourth rack structure 329 is the front and back direction. The window sash moves closer to or away from another window sash along the front and back direction, and the front and back direction is the side pressure direction.

[0069] Specifically, one or at least two side lock devices 30 are provided, and two groups of the first side sliding transmission structures are provided in each side lock device 30 , so the structural stability is high.

[0070] Specifically, the first lock body driving rod 33 is provided with two third slots along the length direction, the third rack structure 331 is provided at a side wall of the third slot along the length direction, the third gear 34 extends into the third slot and meshes with the third rack structure 331; the width of the third slot can match the diameter of the third gear 34, and its structural stability and reliability are better. The fourth rack structure 329 is provided at both ends of the first lock body bracket 321 and is provided along the width direction, and the fourth gear 35 meshes with the fourth rack structure 329.

[0071] Specifically, the diameter of the third gear 34 is larger or smaller than the diameter of the fourth gear 35 to meet the design requirements of labor saving or long stroke. Alternatively, the diameter of the third gear 34 is equal to the diameter of the fourth gear 35, and its parts have good versatility.

[0072] In a specific application, the diameter of the third gear 34 may be equal to the diameter of the first gear 141 , and the diameter of the fourth gear 35 may be equal to the diameter of the second gear 142 , so that the transmission is stable and reliable.

[0073] Specifically, the third gear 34 and the fourth gear 35 are connected via a second synchronization shaft 36 , the second synchronization shaft 36 rotates and passes through the first side sliding bracket 322 , and the third gear 34 and the fourth gear 35 are fixedly connected to both ends of the second synchronization shaft 36 .

[0074] Specifically, the front end of the first inverted locking rod 324 is a mushroom head structure, and the rear end of the first inverted locking rod 324 is connected to the first side sliding bracket 322 through a height adjustable mechanism. The first inverted locking rod 324 can be threadedly connected to the first side sliding bracket 322. The first inverted locking rod 324 is arranged in the left and right direction, and can slide left and right with the window sash to the opening of the first inverted locking hole 312, and then slide forward with the first side sliding bracket 322 into the first inverted locking hole 312 to be fastened.

[0075] Specifically, Figure 1 , Figure 2 as well as Figures 22 to 30 As shown, the door and window system also includes an intermediate lock device 40, which is used to fix the other side of the window sash to another adjacent window sash to achieve multi-point locking, and the side lock device 30 is also driven by the handle component 90 and the transmission rod. The intermediate lock device 40 includes an intermediate lock body 42 that can be connected to the window sash and an intermediate lock seat 41 that can be fixed to another adjacent window sash, and the intermediate lock seat 41 is provided with a second inverted lock hole 411, and the intermediate lock body 42 includes an intermediate lock body mounting frame 43 and an intermediate lock slider 44 that can slide laterally relative to the intermediate lock body mounting frame 43, and the intermediate lock slider 44 is provided with a second inverted lock rod 441 that can be inserted into the second inverted lock hole 411 and can slide laterally with the intermediate lock slider 44 and be clamped at the second inverted lock hole 411; a second side sliding transmission structure is provided between the intermediate lock body mounting frame 43 and the intermediate lock slider 44. The second inverted lock hole 411 can be an open U-shaped lock hole, and the second inverted lock rod 441 can be set along the front-to-back direction. It can slide left and right with the window sash into the opening of the second inverted lock hole 411, and then be tightened to the second inverted lock hole 411 along the front-to-back direction under the action of the handle, so the structural stability is good.

[0076] Specifically, both ends of the intermediate lock slider 44 have second side sliding guide portions, and the intermediate lock body mounting frame 43 has a second side sliding guide groove matching the second side sliding guide portion, and the sliding stability thereof is high.

[0077] Specifically, the intermediate lock device includes a second lock body drive rod 45 (which can be driven by a transmission pull rod) driven by a handle component 90 to slide and slidably connected to the side of the window sash, and the second lock body drive rod 45 is connected to the second side sliding transmission structure. The second lock body drive rod 45 is arranged in the up and down direction, and the second lock body drive rod 45 is provided with a fifth rack structure 451, and the second side sliding transmission structure includes a fifth gear 46 coaxially connected and arranged and a sixth gear 47 rotating synchronously with the fifth gear 46, and the fifth gear 46 is meshed with the fifth rack structure 451; the intermediate lock slider 44 is provided with a sixth rack structure 442, the sixth rack structure 442 is arranged in the front and back direction, the sixth rack structure 442 is arranged in a direction perpendicular to the fifth rack structure 451, and the sixth gear 47 is meshed with the sixth rack structure 442. The intermediate lock device 40 can be provided with one or at least two, and each intermediate lock device 40 is provided with two groups of the second side sliding transmission structure, that is, the two groups of transmission gears are driven by the same second lock body drive rod 45.

[0078] Specifically, the second lock body driving rod 45 is provided with two fourth slots along the length direction, the fifth rack structure 451 is only provided at one side wall of the fourth slot along the length direction, the fifth gear 46 extends into the fourth slot and meshes with the fifth rack structure 451; the width of the fourth slot matches the diameter of the fifth gear 46, and the structure is reliable. The sixth rack structure 442 is provided at both ends of the intermediate lock slider 44 and is provided along the width direction, and the sixth gear 47 meshes with the sixth rack structure 442.

[0079] Specifically, the diameter of the fifth gear 46 is greater than or less than the diameter of the sixth gear 47, or the diameter of the fifth gear 46 is equal to the diameter of the sixth gear 47. In this embodiment, the diameters of the first gear 141, the second gear 142, the third gear 34, the fourth gear 35, the fifth gear 46 and the sixth gear 47 are equal (same specifications).

[0080] Specifically, the fifth gear 46 and the sixth gear 47 are connected via a third synchronization shaft 48 , and the third synchronization shaft 48 rotates and passes through the intermediate lock body mounting frame 43 . The fifth gear 46 and the sixth gear 47 are respectively fixed to both ends of the third synchronization shaft 48 .

[0081] Specifically, the front end of the second inverted locking rod 441 is a mushroom head structure, and the rear end of the second inverted locking rod 441 is connected to the middle locking slider 44 through a height-adjustable mechanism. The second inverted locking rod 441 can be threadedly connected to the middle locking slider 44 and slide along the front-to-back direction with the middle locking slider 44.

[0082] Specifically, the intermediate lock seat 41 includes a fixed seat body 414 and an inverted plate 412 whose relative position can be adjusted relative to the fixed seat body 414, the second inverted lock hole 411 is arranged on the inverted plate 412, and elastic members 413 are arranged on both sides of the inverted plate 412, and the elastic members 413 can be springs. The elastic members 413 are pressed between the fixed seat body 414 and the inverted plate 412, and the inverted plate 412 can adaptively move within a certain range up and down to avoid jamming, thereby providing a better user experience.

[0083] The utility model provides a door and window pulley device and a door and window system for sliding windows. When a user operates a handle component 90, the door and window pulley device (upper pulley device 10 and lower pulley device 20), the side lock device 30 and the middle lock device 40 are synchronously pressed sideways through the transmission pull rods, so that the window sash can achieve the function of side pressure to enhance sealing. The side pressure process is smooth and avoids the side pressure bracket 12 twisting relative to the sliding bracket 11 to cause sticking and deformation and other undesirable phenomena. The operation is relatively labor-saving, and the structure is not easy to deform and fail. The product has good reliability and better user experience.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A door and window pulley device for a sliding window, characterized in that: It includes a pulley device body, which includes a sliding bracket that can slide along a track. The door and window pulley device also includes a side pressure bracket that is used to connect the window sash and can be slidably connected to the sliding bracket along a direction perpendicular to the track to approach or move away from another window sash. At least two groups of side pressure sliding guide structures are arranged between the sliding bracket and the side pressure bracket, and at least two groups of side pressure transmission structures are arranged between the sliding bracket and the side pressure bracket.

2. A door and window pulley device for a sliding window as claimed in claim 1, characterized in that: The side pressure sliding guide structure comprises a guide tube and a guide shaft, wherein the guide tube is fixedly connected to or integrally connected to the sliding bracket, the guide shaft is fixedly connected to or integrally connected to the side pressure bracket, and the guide shaft slides through the guide tube; Alternatively, the guide tube is fixedly connected to or integrally connected to the side pressure bracket, the guide shaft is fixedly connected to or integrally connected to the sliding bracket, and the guide shaft slides through the guide tube.

3. A door and window pulley device for a sliding window as claimed in claim 2, characterized in that: A sliding bearing is arranged in the guide tube, and the guide shaft passes through the sliding bearing.

4. A door and window pulley device for a sliding window as claimed in claim 2, characterized in that: The sliding bracket is in the shape of a U-shaped profile and has two opposing first side walls, the two ends of the guide tube are fixedly connected to the two opposing first side walls of the sliding bracket, and the first side wall has a through hole that penetrates the guide tube; the side pressure bracket is in the shape of a U-shaped profile and is located outside the sliding bracket, the side pressure bracket has two opposing second side walls, the two ends of the guide shaft are fixedly connected to the two opposing second side walls of the side pressure bracket, and the two ends of the guide shaft both extend out of the through hole, and the sliding bracket is located between the two second side walls.

5. A door and window pulley device for a sliding window as claimed in claim 2, characterized in that: The side pressure transmission structure includes a sliding member driven by a pull rod and capable of sliding along the track direction. The sliding bracket is connected to a rotating member driven by the sliding member. The side pressure bracket is fixed with a driven structural member driven by the rotating member to slide along a direction perpendicular to the track.

6. A door and window pulley device for a sliding window as claimed in claim 5, characterized in that: The sliding member is provided with a first rack structure, the rotating member includes a first gear coaxially connected and a second gear rotating synchronously with the first gear, the first gear is meshed with the first rack structure, the sliding bracket is provided with a second rack structure, the second rack structure is arranged in a direction perpendicular to the first rack structure, and the second gear is meshed with the second rack structure.

7. A door and window pulley device for a sliding window as claimed in claim 6, characterized in that: The diameter of the first gear is greater than or smaller than the diameter of the second gear, or the diameter of the first gear is equal to the diameter of the second gear.

8. A door and window pulley device for a sliding window as claimed in claim 6, characterized in that: The sliding member is a sliding rod that can be driven by a door or window handle, the sliding rod is provided with at least two first grooves along the length direction, the first rack structure is provided at a side wall of the first groove along the length direction of the sliding rod, and the first gear extends into the first groove and meshes with the first rack structure; A second slot is provided on the top of the sliding bracket, the second rack structure is provided on a side wall of the second slot along the width direction of the sliding bracket, and the second gear extends into the second slot and meshes with the second rack structure.

9. A door and window pulley device for a sliding window as claimed in any one of claims 2 to 8, characterized in that: The main body of the pulley device is a lower pulley device, and the lower pulley device is provided with at least two wheel bodies, each of which is connected to the sliding bracket through a wheel axle, and one or at least two wheel bodies are arranged between two adjacent guide tubes, and the guide tube is arranged parallel to the wheel axle; or, the main body of the pulley device is an upper pulley device.

10. A door and window system, characterized in that: The door and window system has a door and window pulley device for a sliding window as described in any one of claims 1 to 9, and the door and window system also includes a side lock device and / or a middle lock device.

11. A door and window system as claimed in claim 10, characterized in that: The side lock device comprises a side lock seat that can be fixed to the window frame and a side lock body that can be installed on the window sash, the side lock seat has a first insertion hole and a first inverted lock hole, the side lock body comprises a first lock body bracket and a first side sliding bracket that can slide relative to the first lock body bracket, the first lock body bracket is provided with a first insertion rod that can be inserted into the first insertion hole along the sliding direction of the window sash, and the first side sliding bracket is provided with a first inverted lock rod that can be inserted into the first inverted lock hole along the sliding direction of the window sash and can slide sideways with the first side sliding bracket and be inverted at the first inverted lock hole; A first side-sliding guide structure is provided between the first lock body bracket and the first side-sliding bracket, and a first side-sliding transmission structure is provided between the first lock body bracket and the first side-sliding bracket; The first lock body bracket has first side sliding guide parts at both ends, the first side sliding bracket has a first side sliding guide groove matching the first side sliding guide part, and the first side sliding guide structure includes the first side sliding guide part and the first side sliding guide groove; The side lock device comprises a first lock body driving rod driven by the handle component to slide and slidably connected to the side of the window sash, and the first lock body driving rod is connected to the first side sliding transmission structure; The first lock body driving rod is provided with a third rack structure, the first side-sliding transmission structure includes a third gear coaxially connected and a fourth gear rotating synchronously with the third gear, the third gear meshing with the third rack structure; the first lock body bracket is provided with a fourth rack structure, the fourth rack structure is arranged in a direction perpendicular to the third rack structure, and the fourth gear meshing with the fourth rack structure; The side lock device is provided with one or at least two, and each side lock device has two sets of the first side sliding transmission structure; the first lock body driving rod is provided with two third slots along the length direction, the third rack structure is provided at a side wall of the third slot along the length direction, and the third gear extends into the third slot and meshes with the third rack structure; The fourth rack structure is arranged at both ends of the first lock body bracket and arranged along the width direction, and the fourth gear is meshed with the fourth rack structure; The diameter of the third gear is greater than or smaller than the diameter of the fourth gear, or the diameter of the third gear is equal to the diameter of the fourth gear; The third gear and the fourth gear are connected via a second synchronization shaft, and the second synchronization shaft rotates and passes through the first side sliding bracket; The front end of the first inverted locking rod is a mushroom head structure, and the rear end of the first inverted locking rod is connected to the first side sliding bracket through a height adjustable mechanism.

12. A door and window system as claimed in claim 10, characterized in that: The intermediate lock device comprises an intermediate lock body which can be connected to the window sash and an intermediate lock seat which can be fixed to another adjacent window sash, the intermediate lock seat is provided with a second inverted lock hole, the intermediate lock body comprises an intermediate lock body mounting frame and an intermediate lock slider which can slide laterally relative to the intermediate lock body mounting frame, the intermediate lock slider is provided with a second inverted lock rod which can be inserted into the second inverted lock hole and can be clamped at the second inverted lock hole as the intermediate lock slider slides laterally; a second side sliding transmission structure is provided between the intermediate lock body mounting frame and the intermediate lock slider; The two ends of the intermediate lock slider are provided with second side sliding guide parts, and the intermediate lock body mounting frame is provided with second side sliding guide grooves matching with the second side sliding guide parts; The intermediate lock device includes a second lock body driving rod driven by the handle component to slide and slidably connected to the side of the window sash, and the second lock body driving rod is connected to the second side sliding transmission structure; the second lock body driving rod is provided with a fifth rack structure, and the second side sliding transmission structure includes a fifth gear coaxially connected and a sixth gear rotating synchronously with the fifth gear, and the fifth gear is meshed with the fifth rack structure; the intermediate lock slider is provided with a sixth rack structure, and the sixth rack structure is arranged in a direction perpendicular to the fifth rack structure, and the sixth gear is meshed with the sixth rack structure; The intermediate locking device is provided with one or at least two, and each intermediate locking device is provided with two groups of the second side-sliding transmission structure; The second lock body driving rod is provided with two fourth slots along the length direction, the fifth rack structure is provided at a side wall of the fourth slot along the length direction, and the fifth gear extends into the fourth slot and meshes with the fifth rack structure; The sixth rack structure is arranged at both ends of the intermediate lock slider and along the width direction, and the sixth gear is meshed with the sixth rack structure; The diameter of the fifth gear is greater than or smaller than the diameter of the sixth gear, or the diameter of the fifth gear is equal to the diameter of the sixth gear; The fifth gear and the sixth gear are connected via a third synchronization shaft, and the third synchronization shaft rotates and passes through the intermediate lock body mounting frame; The front end of the second inverted locking rod is a mushroom head structure, and the rear end of the second inverted locking rod is connected to the middle locking slider through a height adjustable mechanism; The intermediate lock seat includes a fixed seat body and an inverted plate whose relative position can be adjusted relative to the fixed seat body, the second inverted lock hole is arranged on the inverted plate, and elastic members are arranged on both sides of the inverted plate, and the elastic members are pressed between the fixed seat body and the inverted plate.

Images